WO2019117632A1 - 재조합 아데노바이러스 및 이를 포함하는 줄기세포 - Google Patents
재조합 아데노바이러스 및 이를 포함하는 줄기세포 Download PDFInfo
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Definitions
- the present invention relates to a recombinant adenovirus having excellent cancer-specific gene expression regulation ability and stem cell introduction ability, a stem cell into which the recombinant adenovirus has been introduced, and gene transfer and cancer-specific therapeutic agents using the recombinant adenovirus.
- adenovirus as a gene transfer vector
- Treatment of cancer with gene therapy has the advantage of not requiring the expression of a long-lasting therapeutic gene.
- adenovirus is attracting attention as a gene carrier for cancer treatment.
- cancer cell (tumor) selective killing adenovirus which can only proliferate in cancer cells, can kill only cancer cells without affecting normal cells, and has attracted attention as a next generation therapeutic agent.
- adenovirus when administered systemically as a gene therapy agent, adenovirus accumulates in the liver tissue and causes toxicity, or the neutralization antibody produced in the blood results in shortening of the body maintenance time and efficiency of delivery of the adenovirus to the target tumor site Is lowered. Therefore, there is a desperate need for the development of a gene therapy agent that enhances target orientation and delivery efficiency to a tumor site while maintaining the advantages of adenovirus in gene therapy.
- MSC Mesenchymal Stem Cell
- MSC Mesenchymal Stem Cell
- the MSC has an effect of promoting the inhibition of disease and the regeneration of the injured area by replacing the damaged cells and releasing various growth factors and cytokines by moving to the damaged area when administered in the body.
- the MSC has the ability to migrate to the tumor by the tumor tropism, and because the co-stimulatory molecule is not expressed, the immune rejection is low or the systemic administration is possible, In addition to self-treatment, it is also possible to treat as many patients as possible.
- the inventors of the present invention have continued to investigate a method capable of delivering adenovirus to a target site with high efficiency after injecting into a body by improving the disadvantages of adenovirus which can not be administered systemically and which has low introduction efficiency into stem cells,
- the adenovirus which is excellent in the ability to introduce stem cells and has excellent ability to regulate cancer gene expression and the adenovirus-introduced stem cells can be developed even at a low concentration, and when the stem cells are used, systemic administration is possible, And thus it has excellent cancer cell-specific killing effect without causing problems such as hepatotoxicity.
- the present invention has been completed.
- the present invention provides a recombinant adenovirus having improved stem cell introduction ability including a serine 35 fiber knob.
- the fiber knob of serotype 35 may comprise the sequence of SEQ ID NO: 1.
- the recombinant adenovirus may further include a gene expression control sequence and a target gene that regulate the expression of the target gene.
- the recombinant adenovirus comprises (a) 6 copies of a hypoxia-response elements (HRE) domain sequence in the 5 'to 3' direction; (b) two copies of the AFP (Alpha-Feto Protein) enhancer A sequence, (c) one copy of the AFP promoter enhancer B sequence, and (d) AFP promoter sequence; A target gene operatively linked to the gene expression control sequence; And a fiber knob sequence of serotype 35.
- HRE hypoxia-response elements
- the present invention also provides a Mesenchymal Stem Cell (MSC) containing the recombinant adenovirus.
- MSC Mesenchymal Stem Cell
- the mesenchymal stem cell may be an anti-cancer mesenchymal stem cell containing a target gene and a recombinant adenovirus comprising the sequence of SEQ ID NO: 1.
- the recombinant adenovirus may further comprise a gene expression control sequence that regulates the expression of the target gene.
- the gene expression control sequence may include an AFP promoter sequence of SEQ ID NO: 5 or a TERT promoter sequence of SEQ ID NO: 8.
- the mesenchymal stem cells may be transfected with a recombinant adenovirus comprising the target gene at a concentration of more than 0.01 MOI and less than 100 MOI and the sequence of SEQ ID NO: 1 for less than 50 hours.
- composition is for systemic administration or topical administration.
- the recombinant adenovirus of the present invention is excellent in the ability to introduce into stem cells and to control specific gene expression, and thus has the property that it can be introduced into stem cells even at a low concentration.
- infection with stem cells is excellent even at a low concentration, so that the efficiency of the gene therapy agent can be improved by lowering the proportion of the stem cells killed during adenovirus introduction.
- the stem cell into which the adenovirus of the present invention has been introduced has an advantage of being more viable and capable of killing the cancer cells, and the adenovirus mounted on the stem cell can self-proliferate, The injected stem cells do not remain in the body and do not cause side effects.
- the stem cell and the composition comprising the adenovirus of the present invention are more suitable for systemic administration as compared with other adenovirus therapeutic agents, do not cause liver toxicity, do not cause immune reaction, There is an advantage that the unit price of the therapeutic agent can be lowered.
- FIG. 1 shows the promoter region and size of a plasmid in which the expression of luciferase is regulated by a recombinant AFP promoter produced according to an embodiment of the present invention.
- FIG. 2 is a graph showing the results of confirming liver cancer-specific activity of a recombinant AFP promoter prepared according to an embodiment of the present invention.
- FIG. 3 shows the structure of an adenovirus shuttle vector in which the expression of a gene inserted with a promoter prepared according to an embodiment of the present invention is regulated.
- FIG. 4 shows a homologous recombination process and structure of a non-cloned adenovirus carrying a liver cancer-specific promoter prepared according to an embodiment of the present invention.
- FIG. 5 shows a process for producing an adenovirus whose gene expression is regulated by a modified AFP promoter according to an embodiment of the present invention.
- 6a, 6b, 6c, 6d, 6e, and 6f show the gene expression activity of the recombinant adenovirus carrying the liver cancer-specific promoter prepared according to an embodiment of the present invention and the gene expression in the hypoxic state which is a graph showing the result of confirming the above.
- 6A to 6D show the results of experiments on liver cancer cell lines, 6e shows normal cell lines and 6f shows results on lung cancer cell line (A549).
- FIG. 7 shows the fluorescence of GFP expression in tumor tissues of adenovirus containing liver cancer-specific promoter prepared according to an embodiment of the present invention.
- Figure 8 shows the structure of the shuttle vector of hepatocellular cell-specific cytotoxic adenovirus in which replication of adenovirus is regulated by the modified AFP promoter.
- FIG. 9 shows the homologous recombination process and structure of adenovirus-specific cell-killing adenovirus in which adenovirus replication is regulated by a modified AFP promoter.
- FIGS. 10A, 10B, 10C, 10D, and 10E are graphs showing the results of examining the killing effect of the tumor-bearing adenovirus carrying liver cancer-specific promoter prepared according to an embodiment of the present invention, according to the type of cell line.
- 10a, 10b, and 10c show liver cancer cell-specific killing effect in liver cancer cell lines.
- FIGS. 10d and 10e show killing in normal cell line, and killing effect in normoxia and hypoxia .
- FIG. 11 shows the results of confirming the reproducibility of the recombinant adenovirus carrying the liver cancer-specific promoter prepared according to an embodiment of the present invention in the normoxia and hypoxia conditions.
- FIG. 12 is a graph showing the relationship between the normal oxygen concentration (normoxia, red box) and hypoxic concentration (the central portion of the tumor; hypoxia, blue color) of the recombinant adenovirus carrying the liver cancer-specific promoter prepared according to an embodiment of the present invention Box) was confirmed by fluorescence staining in the spleen cultured Hep3B organoid system.
- FIG. 13 shows the results of confirming the proliferative capacity and antitumor effect (cell apoptosis) of the recombinant adenovirus carrying liver cancer-specific promoter prepared according to one embodiment of the present invention in a subcutaneous liver model (AFP + Hep3B xenograft model).
- FIG. 14 shows the antitumor effect of the recombinant adenovirus carrying liver cancer-specific promoter prepared according to an embodiment of the present invention in the liver cancer model.
- FIG. 15 is a graph showing the antitumor effect of recombinant adenovirus carrying liver cancer-specific promoter prepared according to an embodiment of the present invention.
- 16A shows a method for producing an unreproducible adenovirus expressing adenovirus type 35 fiber (K35).
- 16B shows a method for producing an unreproducible adenovirus that expresses RGD at the adenovirus fiber end.
- 16c shows the results of confirming the trasduction efficiency of mesenchymal stem cells according to the fiber deformation of adenovirus.
- 17 shows the results of confirming the gene transfer efficiency according to the fiber modification of the recombinant adenovirus produced according to an embodiment of the present invention.
- FIG. 18 is a graph showing the results of MTT assay and the results of Q-PCR of the viability of the mesenchymal stem cells in the mesenchymal stem cells obtained according to the present invention, Fig.
- FIG. 19 shows a process of constructing a human liver cancer orthotopic model according to an embodiment of the present invention.
- FIG. 20 is a photograph of luminescence (luciferase) obtained by confirming the production and growth of tumors in a human liver cancer orthotopic model constructed according to an embodiment of the present invention.
- FIG. 21 is a graph showing luminescence (luciferase, Luc) image showing the result of confirming the target orientation to tumor tissue and the proliferative capacity of adenovirus upon administration of adenovirus-bearing mesenchymal stem cells prepared according to an embodiment of the present invention to be.
- FIG. 22 shows a homologous recombination process and structure of a hepatoma target-killer adenovirus capable of gene transfer into an MSC prepared according to an embodiment of the present invention.
- 23A and 23B show the homologous recombination process and structure of Luc-expressing hepatoma target-killer adenovirus capable of gene transfer into MSCs prepared according to an embodiment of the present invention.
- FIG. 24A and 24B show the results of comparing gene transfer efficiency according to fiber deformation of adenovirus in adenovirus-loaded mesenchymal stem cells prepared according to an embodiment of the present invention.
- FIG. 24B shows that expression of luciferase (Luc) gene is efficiently induced by proliferation in adenovirus-bearing mesenchymal stem cells prepared according to an embodiment of the present invention.
- Luc luciferase
- FIG. 25 shows the structure of a hepatocarcinoma target adenovirus for stem cell expression expressing a therapeutic gene according to an embodiment of the present invention.
- 26 shows a homologous recombination process and structure of sLRP6 expressing hepatocarcinoma target adenovirus for stem cell expression expressing a therapeutic gene according to an embodiment of the present invention.
- FIG. 27 is a graph comparing kill effects according to the types of liver cancer-specific killing adenovirus cell lines (hepatocarcinoma cells (Hep3B, Huh7, Hep1) and normal cells (HDF)) prepared according to an embodiment of the present invention.
- liver cancer-specific killing adenovirus cell lines hepatocarcinoma cells (Hep3B, Huh7, Hep1) and normal cells (HDF)
- FIG. 28 is a graph showing the results of confirming the killing ability of the liver cancer-specific killing adenovirus produced according to an embodiment of the present invention on mesenchymal stem cells.
- the vertical axis of the graph represents cell viability of mesenchymal stem cells and the horizontal axis represents the concentration of adenovirus (Ha2bm-d19-k35 / sLRP6) infected with mesenchymal stem cells, Means the elapsed time after infection (2 days, 5 days).
- FIG. 29 is a graph showing the results of confirming the ability of adenovirus to proliferate in mesenchymal stem cells on which liver cancer-specific killing adenovirus prepared according to an embodiment of the present invention is loaded.
- the horizontal axis of the graph represents the concentration of adenovirus (Ha2bm-d19-k35 / sLRP6) infected with mesenchymal stem cells, and the vertical axis of the graph represents the number of adenoviruses (VP / ml)
- Treatment group means elapsed time (2 days and 5 days) after infection.
- FIGS. 30A and 30B show the antitumor effect of the mesenchymal stem cells on liver cancer target adenovirus prepared according to one embodiment of the present invention, in vivo status.
- FIG. 31 is a graph showing the antitumor effect of mesenchymal stem cells on liver cancer target adenovirus prepared according to an embodiment of the present invention in and the results obtained in the vivo state are shown by quantitative values.
- 33A and 33B are graphs showing the antitumor effect of the mesenchymal stem cells loaded with liver cancer target adenovirus prepared according to one embodiment of the present invention on the difference of the tumor weight 33a or the flux value 33b FIG.
- FIG. 34 is a graph showing the results of in vivo hepatic changes by mesenchymal stem cells loaded with liver cancer-specific killing adenovirus prepared according to an embodiment of the present invention.
- 35 is a graph showing the results of in vivo distribution of systemic administration of liver cancer-specific killing adenovirus-bearing stem cells prepared according to an embodiment of the present invention.
- FIG. 36 is a photograph showing histological changes of liver cancer in liver cancer-specific killing adenovirus-bearing stem cells prepared according to an embodiment of the present invention.
- FIG. 37 is a photograph showing the histological changes of liver cancer in liver cancer-specific killing adenovirus-bearing stem cells prepared according to an embodiment of the present invention.
- Figures 38a, 38b, 38c and 38d illustrate the structure and properties of the HCC-target oAd expressing WNTi according to one embodiment of the present invention.
- 38a shows the structure of HCC-oAd-WNTi
- 38b shows the expression of the gene related to the Wnt signaling pathway
- 38c shows the effect of HCC-oAd-WNTi on HCC killing
- FIG. 39 is a graph showing the cancer cell kill effect of HCC-oAd-WNTi-loaded mesenchymal stem cells (HCC-oAd-WNTi / MSC) according to an embodiment of the present invention. Untreated, MSC alone treatment group (MSC), naked Ad treatment group (HCC-oAd-WNTi) were tested together as a control group.
- MSC MSC alone treatment group
- HCC-oAd-WNTi naked Ad treatment group
- FIG. 40 shows the pharmacokinetic profiles of HCC-oAd-WNTi / MSC loaded with HCC-oAd-WNTi according to an embodiment of the present invention.
- the present invention relates to a mesenchymal stem cell (Ad-MSC) having excellent gene transfer ability to mesenchymal stem cells and having excellent introduction ability into mesenchymal stem cells even at a low concentration and having a recombinant adenovirus excellent in gene expression regulation ability, A composition for gene transfer comprising the mesenchymal stem cell (Ad-MSC) of the present invention, and a composition for treating cancer comprising the mesenchymal stem cell (Ad-MSC) of the present invention.
- Ad-MSC mesenchymal stem cell
- the invention includes a recombinant adenovirus comprising a fiber sequence of SEQ ID NO: 1.
- the present invention also provides a mesenchymal stem cell (Ad-MSC) into which the recombinant adenovirus is introduced.
- Ad-MSC mesenchymal stem cell
- adenoviruses are widely used as gene transfer vectors due to their medium genome size, ease of manipulation, high titer, wide target cells and excellent infectivity. Both ends of the genome contain an inverted terminal repeat (ITR) of 100-200 bp, which is a sis element essential for DNA replication and packaging.
- ITR inverted terminal repeat
- the E1 regions of the genome (E1A and E1B) encode proteins that regulate transcription and transcription of host cell genes.
- the E2 regions encode proteins involved in viral DNA replication.
- non-replicable adenoviruses lacking the E1 region are widely used.
- the E3 region is removed from the conventional adenoviral vector to provide a site for insertion of a foreign gene (Thimmappaya, B. et al., Cell, 31: 543-551 (1982); and Riordan, JR et al. Science, 245: 1066-1073 (1989)).
- the adenovirus of the present invention is characterized by comprising a fiber sequence of SEQ ID NO: 1.
- adenovirus has been studied for use as a carrier for gene therapy or cell therapy, but there has been a problem that treatment efficiency is lowered due to rapid elimination in the blood or other immune response. In order to solve this problem, it has been proposed to mount adenoviruses in mesenchymal stem cells.
- the adenovirus when the adenovirus is recombined to include the fiber of SEQ ID NO: 1 of the present invention, the efficiency of introduction into mesenchymal stem cells is remarkably excellent, and it can be introduced well even at a low virus concentration. Therefore, the present invention has a very important patentability in that it disadvantages of adenovirus which has been a problem in conventional gene therapy and low introduction efficiency into mesenchymal stem cells are solved.
- the vectors are well introduced into mesenchymal stem cells even at 0.02 MOI (FIG. 18).
- the introduction of the viral vector was not performed well even at 100 MOI or 500 MOI (Figs. 17 and 24), but it was confirmed that introduction of the vector was performed well even in 5 MOI using the recombinant adenovirus of the present invention there was.
- the Ad-loaded mesenchymal stem cell of the present invention can control the amount of adenovirus (Ad) have.
- MSCs can be transfected for up to 50 hours using adenoviruses of greater than 0.001 MOI and less than 100 MOI. Preferably from 0.01 MOI to 100 MOI or less. More specifically not more than 50 MOI, or not less than 0.01 MOI and not more than 50 MOI, or 2 MOI to 10 MOI, with Ad containing 35 serovar knobs of 35, so that the mesenchymal stem cell adenovirus Viruses can be introduced.
- the adenovirus of the present invention may further comprise a gene expression control sequence.
- gene expression control sequences can be included in conventional adenoviruses and are included in the present invention without limitation as long as they are known in the technical field of the present invention.
- the gene expression regulatory sequence may be inserted at the promoter sequence position of the E1A gene to regulate the expression of the E1A gene.
- the gene expression control sequence-expressing gene cassette of the present invention can also be inserted into the deleted E4 region.
- the term "deletion" as used herein in connection with the viral genomic sequence has the meaning not only of a complete deletion of the sequence but also of a partial deletion thereof.
- the gene expression control sequence of the present invention when the gene expression control sequence of the present invention is located upstream of the E1A gene, that is, when the gene expression regulatory sequence of the present invention is operatively linked to the E1A gene (HRE-Ea-Eb-AFPm-E1A) Replication of the recombinant adenovirus is controlled by the gene expression control sequences of the present invention.
- the gene expression regulatory sequence of the present invention When the gene expression regulatory sequence of the present invention is located in the deleted E3 gene region, it can be inserted into the E3 gene region deleted in the expression cassette of "gene expression regulatory sequence-target gene".
- the gene expression control sequence of the present invention When the gene expression control sequence of the present invention is located in the deleted E4 gene region, it can be inserted into the E4 gene region deleted in the expression cassette of "gene expression control sequence-target gene ".
- the target gene inserted into the recombinant adenovirus is inserted into the expression cassette of the promoter-target gene.
- the gene expression regulatory sequence for example, Ea-Eb-AFPm, Ea2-Eb-AFPm or HRE6-Ea2-Eb-AFPm
- a conventional promoter may be used as the promoter.
- a conventional promoter to be bound to a target gene is preferably one capable of regulating the transcription of a target gene by working in an animal cell, more preferably a mammalian cell.
- the promoter is preferably derived from a mammalian virus-derived promoter and a genome of a mammalian cell
- a polyadenylation sequence is bound downstream of the desired gene in an expression construct for expressing the desired gene.
- the polyanenylation sequence may be derived from a bovine growth hormone terminator (Gimmi, ER, et al., Nucleic Acids Res. 17: 6983-6998 (1989)), SV40 derived polyadenylation sequence (Schek, N, et al., Mol HIV-1 polyA (Klasens, BIF, et al., Nucleic Acids Res. 26: 1870-1876 (1998)), ⁇ -globin polyA (Gil, A. et al., Cell Biol.
- HSV TK polyA Cold-cell Biol. 5: 2104-2113 (1985)
- polyoma virus polyA Bosset, D B and GG Carmichael, Mol. Cell. Biol. 15: 4783-4790 (1995)
- the adenovirus can pack up to about 105% of the wild type genome, about 2 kb can be additionally packaged (Ghosh-Choudhury et al., EMBO J., 6: 1733-1739 (1987)).
- the above-mentioned foreign sequence inserted into the adenovirus may be further bound to the genome of the adenovirus.
- the foreign gene carried by the adenovirus is replicated in the same manner as the episome, and the genetic toxicity to the host cell is very low. Therefore, gene therapy using the adenovirus gene delivery system of the present invention is considered to be very safe.
- K35 fiber means the fiber protein of the adenovirus serotype 35 or the nucleotide sequence coding therefor.
- the adenovirus is a 70-90 nm envelope-free virus with capsids that consists of three major exposed structural proteins, hexon, fiber and penton base, A protein in the form of a knob protruding from the Fenton region, which is the vertex of the capsid, is called a fiber.
- Adenovirus binds to receptors such as cells to be infected through the above-mentioned fiber proteins and is known to exhibit different infections and symptoms depending on serotypes.
- the K35 fiber sequence may comprise the nucleotide sequence of SEQ ID NO: 1, preferably the nucleotide sequence of SEQ ID NO: 1.
- the adenovirus fiber carrying the target gene was transformed into K35.
- MSCs mesenchymal stem cells
- mesenchymal stem cells infected with viruses at a too high concentration have lower viability, such as the death of mesenchymal stem cells.
- the gene expression regulatory sequences contained in the adenovirus of the present invention include (a) HRE (hypoxia-response elements) domain sequences in the 5 'to 3' direction, (b) enhancers of the AFP (Alpha-Feto Protein) promoter (C) an enhancer B sequence of the AFP promoter, and (d) a gene expression control sequence comprising the AFP promoter sequence; And a target gene operatively linked to the gene expression control sequence.
- HRE hyperoxia-response elements
- enhancers of the AFP Alpha-Feto Protein
- C an enhancer B sequence of the AFP promoter
- a gene expression control sequence comprising the AFP promoter sequence
- a target gene operatively linked to the gene expression control sequence.
- the adenovirus of the present invention comprises (a) 6 copies of a hypoxia-response elements (HRE) domain sequence in the 5 'to 3' direction; (b) two copies of the AFP (Alpha-Feto Protein) enhancer A sequence, (c) one copy of the AFP promoter enhancer B sequence, and (d) AFP promoter sequence; A target gene operatively linked to the gene expression control sequence; And a fiber knob sequence of serotype 35.
- HRE hypoxia-response elements
- the adenovirus of the present invention may comprise a gene expression control sequence comprising a 5M MTERT promoter and a target gene operably linked to the gene expression control sequence.
- the gene expression control sequence refers to a sequence capable of regulating expression so that the target gene can be expressed only under specific conditions.
- AFP promoter means a promoter that promotes the expression of AFP (Alpha-Feto Protein) protein, which is a serum protein highly expressed in liver during yolk sac and fetal development. Since AFP protein is rarely detected except for adult liver cancer patients, it is used as a useful marker for liver cancer. The degree of expression of AFP in serum varies from person to person due to the difference of activity of enhancers that regulate their expression. Therefore, when an expression control sequence consisting of a specific combination of AFP promoter and enhancer is used, the target / therapeutic gene to be transduced can be specifically expressed in cancer cells.
- the sequence of the AFP promoter may include the nucleotide sequence of SEQ ID NO: 5.
- Most of the tumor cells undergo an insufficient blood supply because the tumor cells grow faster than the endothelial cells that normally form blood vessels, leading to a hypoxic condition in the tumor.
- These hypoxic conditions in most solid tumors lead to the production of survival factors such as glycolytic enzymes and angiogenic proangiogenic factors, which are resistant to radiation therapy or chemotherapy.
- the major mediator of the hypoxic response is the transcription complex HIF (hypoxia inducible factor) -1 alpha, which interacts with the HRE in the regulatory regions of various genes, such as the VEGF gene and the enolase- 1 and GAPDH (glyceraldehyde-3-phosphate dehydrogenase).
- HIF hypooxia inducible factor
- the present invention can utilize HRE, which is a sequence that regulates the expression of genes in hypoxic conditions and interacts with HIF-1 ?.
- the HRE not only greatly enhances tumor cell selectivity of recombinant adenovirus, but also enhances the proliferative activity of adenovirus.
- the gene expression control sequences of the present invention may comprise an HRE sequence, and preferably include an HRE repeat sequence to enhance transcription activity by the HRE sequence. More preferably, the gene expression control sequence of the present invention may comprise the nucleotide sequence of SEQ ID NO: 6 repeatedly 1 to 10 times, more preferably 3 to 8 times, most preferably 5 to 7 times have. For example, six copies of the hypoxia-response elements (HRE) domain sequence may comprise the sequence of SEQ ID NO: 2.
- HRE hypoxia-response elements
- the gene expression control sequence may include a sequence of the enhancer A of SEQ ID NO: 3 and a sequence of the enhancer A may be included in the form of a repeated sequence to improve the expression efficiency of the transfer gene.
- the repetitive sequences of the present invention may be repeated discontinuous, with the appropriate length of linker nucleotides interposed between the same sequences, immediately adjacent to each other, or within a range that does not affect the activity of the promoter or enhancer repeated.
- the enhancer A sequence included in the gene expression control sequence of the present invention is a sequence having 1 to 10 nucleotide repeats, more preferably 2 to 6 repeats of the nucleotide sequence of SEQ ID NO: 3, May be repeated 3 to 5 times.
- the gene expression control sequence of the present invention includes the HRE domain sequence, the enhancer A sequence, the enhancer B sequence and the AFP promoter sequence in the 5 'to 3' direction. Also preferably, the HRE sequence is repeated 6 times, and the enhancer A sequence may be repeated 2 times.
- the recombinant adenovirus of the present invention may further comprise a target gene operably linked to the gene expression control sequence.
- operatively linked refers to a functional association between a nucleic acid expression control sequence (e.g., an array of promoter, signal sequence, or transcription factor binding site) and another nucleic acid sequence, Whereby the regulatory sequence regulates transcription and / or translation of the different nucleic acid sequences.
- a nucleic acid expression control sequence e.g., an array of promoter, signal sequence, or transcription factor binding site
- the regulatory sequence regulates transcription and / or translation of the different nucleic acid sequences.
- the type of gene (target gene) to be expressed operatively linked to the gene expression control sequence of the present invention is not particularly limited.
- the gene to be expressed may be referred to as a target gene in terms of a gene that expresses the function of the gene at the target site, and the target gene may be a therapeutic gene.
- the therapeutic gene may also be referred to as a therapeutic transgene in the description of the present invention.
- therapeutic transgene in the context of the present invention means a nucleotide sequence which exhibits an improvement or therapeutic effect of a disease or symptom in vivo.
- the therapeutic transgene may be, for example, a nucleotide sequence that is expressed in cancer cells and exhibits a therapeutic effect.
- the target gene may be, for example, a tumor suppressor gene, a suicide gene, an antigenic gene, an immunity enhancing gene, a cytotoxic gene, a cell proliferation inhibitory gene, a cell death gene, an anti-angiogenic gene, Regulatory genes, and nucleotides that can be delivered by the vectors of the present invention.
- tumor suppressor gene refers to a nucleotide sequence that can be expressed in a target cell to inhibit the tumor phenotype or induce apoptosis.
- tumor suppressor genes useful in the practice of the present invention include p53 gene, APC gene, DPC-4 / Smad4 gene, BRCA-1 gene, BRCA-2 gene, WT-1 gene, retinoblastoma gene (Lee et al., Nature , 1987, 329, 642), MMAC-1 gene, adenomatouspolyposis coil protein (US Patent No.
- DCC defective colon tumor
- MMSC-2 MMSC-2 gene
- the foreign gene sequence that can be delivered into cells by the antitumor adenovirus is a cancer-treating gene that induces the death of cancer cells and eventually degenerates the tumor.
- the gene include tumor suppressor genes, immunomodulatory genes such as cytokine genes, A chemokine gene and a costimulatory factor (an auxiliary molecule necessary for T cell activation such as B7.1 and B7.2)], an antigenic gene, a suicide gene, a cytotoxic gene, a cell proliferation inhibitory gene, And anti-angiogenic genes, but are not limited thereto.
- a suicide gene is a nucleic acid sequence that expresses a substance that induces the cell to be easily killed by external factors or induces toxic conditions in the cell.
- a well known gene for this suicide gene is the thymidine kinase (TK) gene (U.S. Pat. Nos. 5,631,236 and 5,601,818). Cells expressing TK gene products are susceptible to selective killing by administration of gancyclovir.
- TK thymidine kinase
- a tumor suppressor gene refers to a gene that encodes a polypeptide that inhibits tumor formation. The tumor suppressor gene is a naturally occurring gene in mammals, and the deletion or inactivation of this gene is believed to be an essential premise for tumorigenesis.
- tumor suppressor genes include APC, DPC4, NF-1, NF-2, MTS1, WT1, BRCA1, BRCA2, VHL, p53, Rb, MMAC-1, MMSC- 329: 642 (1987)), adenomatous polyposis coli protein (US Patent No. 5,783,666), non-human tumor suppressor gene located on chromosome 3p21.3 (Cheng et al., Proc. Nat. Acad.
- members of the INK4 family of tumor suppressor genes including the defective colon tumor (DCC) gene, MTS1, CDK4, VHL, p110Rb, p16 and p21 and their therapeutically effective fragments (E.g., p56Rb, p94Rb, etc.).
- DCC defective colon tumor
- MTS1 CDK4
- VHL p110Rb
- p16 and p21 tumor suppressor genes
- therapeutically effective fragments E.g., p56Rb, p94Rb, etc.
- antigenic gene refers to a nucleotide sequence that is expressed in a target cell to produce a cell surface antigenic protein that is recognizable in the immune system.
- antigenic genes include carcinoembryonic antigen (CEA), HER-2, prostate specific antigen (PSA) and p53 (Levine, A., International patent application WO94 / 02167).
- CEA carcinoembryonic antigen
- PSA prostate specific antigen
- p53 Levine, A., International patent application WO94 / 02167.
- the antigenic gene may be linked to MHC type I antigens.
- cytotoxic gene refers to a nucleotide sequence that is expressed in a cell and exhibits toxic effects.
- examples of such cytotoxic genes include nucleotide sequences encoding Pseudomonas exotoxin, lysine toxin, diphtheria toxin, cytosine deaminase (CD), super-cytosine deaminase (Super-CD), and thymidine kinase (TK).
- cytostatic gene in the specification of the present invention means a nucleotide sequence that is expressed in a cell and stops the cell cycle during the cell cycle.
- cell proliferation inhibiting genes include p21, a retinoblastoma gene, an E2F-Rb fusion protein gene, a gene encoding a cyclin-dependent kinase inhibitory factor (for example, p16, p15, p18 and p19) (GAX) gene (WO 97/16459 and WO96 / 30385), but the present invention is not limited thereto.
- apoptotic gene refers to a nucleotide sequence that induces the expression and programmed cell death.
- pro-apoptotic genes include p53, TRAIL, MDA-7 (IL-24), adenovirus E3-11.6K (derived from Ad2 and Ad5) or adenovirus E3-10.5K E4 gene, p53 pathway gene and a gene encoding caspase.
- anti-angiogenic gene refers to a nucleotide sequence that is expressed and releases anti-angiogenic factors outside the cell.
- Anti-angiogenic factors include inhibitors of vascular endothelial growth factor (VEGF) such as vastatin, angiostatin and Tie 2 (PNAS, 95: 8795-800 (1998)), endostatin, VEGF decoy protein, VEGF Trap, VEGF siRNA, and the like.
- VEGF vascular endothelial growth factor
- BRMS1, CRSP3, DRG1, KAI1, KISS1, NM23 various TIMPs (Tissue inhibitors of metalloproteinases), which inhibit metastasis-mediated metastasis.
- TIMPs tissue inhibitors of metalloproteinases
- antibody gene refers to a nucleotide sequence that produces a specific antibody capable of binding to antigens expressed preferentially or exclusively in cancer cells, unlike normal cells, and capable of inducing apoptosis of cancer cells .
- antibody genes include anti-DR4 / DR5, anti-CTLA-4, anti-PD-1, anti-PD-L1, anti-Her2 / neu, anti-VEGF, anti- Survivin, anti-EGFR, anti-Wnt, anti-Ly49, and the like.
- immunological-related factors include, for example, cytokines such as interferon- (IL-1, IL-2, IL-4, IL-6, IL-7, IL-10, IL-12, IL-17, IL- (Monocyte chemotactic protein 1 (MCP-1), monocyte chemotactic protein (IL-19), IL-20 and IL-23) and colony stimulating factors (e.g., GM-CSF and G- (MIP-1?), Macrophage inflammatory protein 1?
- cytokines such as interferon- (IL-1, IL-2, IL-4, IL-6, IL-7, IL-10, IL-12, IL-17, IL- (Monocyte chemotactic protein 1 (MCP-1), monocyte chemotactic protein (IL-19), IL-20 and IL-23) and colony stimulating factors (e.g., GM-CSF and G- (MIP-1?), Macrophage inflammatory protein 1?
- MIP-1? Macrophage chemotactic protein 4 (MCP-2), monocyte chemotactic protein 3 (MIP-1?), Macrophage inflammatory protein 3? (MIP-3?), Macrophage inflammatory protein 3? (MIP-3?), Chemokine (ELC), macrophage inflammatory protein 4 -5), LD78 [beta], RAN (Eg, TES, SIS-epsilon (p500), thymus activation-regulated chemokine (TARC), eotaxin, I-309, human protein HCC-1 / NCC-2, human protein HCC-3, mouse protein C10, And costimulatory factors (auxiliary molecules required for T cell activation such as B7.1 and B7.2).
- nucleotides that can be delivered by the vector of the present invention include CD44v3 / 6, ADP (Adenovirus death protein), IFN- ⁇ , HIF-1 ⁇ siRNA, IDO2 (idolamine 2,3-dioxygenase2) siRNA, Wnt decoy protein, VEGF iodine symporter (NIS), shAkt1, shMYO6, NIS (microRNA-26a), miR-99a, miR-143, miR-193a-3p, miR- Mouse-chimeric antibody, humanized antibody, or humanized antibody targeting HSV-TK, LMP2A / LMP1, IP-10 / CXCL10, PF-4var / CXCL4L1, oncostatin M, There are a zinc finger protein targeting Lin28, a VEGF targeting zinc finger protein, a cMet targeting zinc finger protein, a Cas 9 protein and a guiding RNA, a TALEN protein, a TRAIL protein, or a PTEN
- the recombinant adenovirus of the present invention may further comprise a nucleotide encoding a fluorescent protein in a nucleotide encoding a capsid protein.
- a recombinant adenovirus which can easily track the position of the inserted adenovirus.
- the path and distribution of the virus can be tracked in real time.
- the expression of the protein was confirmed only after the DNA was converted into the protein.
- the virus in which the label protein was bound to the IX protein Expression and location of virus can be tracked.
- the present invention can be used as a useful non-invasive molecular imaging tool.
- the capsid protein of the present invention may be pIX.
- the fluorescent protein of the present invention can be used as a fluorescent protein such as green fluorescent protein (GFP), red fluorescent protein (RFP), cyan fluorescent protein (CFP), yellow fluorescent protein (YFP) Selected from the group consisting of enhanced green fluorescent protein (EGFP), enhanced cyan fluorescent protein (ECFP), enhanced yellow fluorescent protein (EYFP), enhanced red fluorescent protein (ERFP), enhanced blue fluorescent protein (EBFP), and luciferase .
- GFP green fluorescent protein
- RFP red fluorescent protein
- CFP cyan fluorescent protein
- YFP yellow fluorescent protein
- EGFP enhanced green fluorescent protein
- EYFP enhanced yellow fluorescent protein
- EYFP enhanced red fluorescent protein
- EBFP enhanced blue fluorescent protein
- luciferase luciferase
- the Mesenchymal Stem Cell is a type of adult stem cells and has been reported to be capable of differentiating into various cells such as adipocytes, osteoblasts and chondrocytes. Although mesenchymal stem cells have been extensively studied as one of gene carriers, they lack specific receptors, so that adenovirus does not cause infection and has a difficulty in being used as a gene carrier.
- the recombinant adenovirus of the present invention improves the ability to introduce mesenchymal stem cells by modification of the fiber protein, so that it can be effectively used as a gene delivery body for delivering a target gene to a desired site in the s body.
- adenovirus In the case of mesenchymal stem cells, introduction of adenovirus is difficult, and a large number of adenoviruses are required to be introduced to a level that can be used as a gene therapeutic agent. However, in this case, there is a problem that the viability and characteristics of the mesenchymal stem cells are lowered by the adenovirus, resulting in rapid death of the mesenchymal stem cells.
- the recombinant adenovirus containing the sequence of SEQ ID NO: 1 of the present invention was used to mount mesenchymal stem cells, it was experimentally confirmed that introduction of adenovirus can be performed well even at a low MOI.
- the stem cell (Ad-MSC) carrying the recombinant adenovirus of the present invention has a high viability as compared with other stem cells, and acts as a culture medium capable of multiplying the adenovirus on which it is mounted, It can be used as an excellent gene carrier in gene therapy that does not cause development.
- the stem cells may be capable of systemic administration or local administration.
- systemic administration may be, but not limited to, intravenous and intraperitoneal administration, pulmonary administration, and intravesical injection.
- systemic administration may be, but not limited to, intravenous and intraperitoneal administration, pulmonary administration, and intravesical injection.
- Ad-MSC adenovirus-bearing stem cells
- the gene transfer composition of the present invention may be for systemic administration.
- systemic administration is not possible, and there is a difficulty in gene transfer in which an adenovirus vector is lost by immune cells or the like before reaching a target site.
- adenovirus of the present invention In addition to the cancer-specific characteristics of a stem cell (Ad-MSC), it can be administered systemically with low or no immune response, is excellent in targeting to tumor cells and does not cause hepatotoxicity, Can be significantly increased.
- the mesenchymal stem cells can be isolated from the bone marrow or the like, and the same kind of mesenchymal stem cells can be used by the patient himself or a database of the blood bank. Therefore, when the adenovirus-bearing stem cell of the present invention is used as a gene carrier, not only the autologous treatment but also all kinds of treatments can be performed, so that the unit cost of gene therapy can be further lowered.
- the method for introducing the adenovirus including the gene expression control sequence of the present invention and the target gene into mesenchymal stem cells can be carried out through various methods known in the art. Specifically, the gene introduction can be carried out according to a virus infection method known in the art.
- the recombinant adenovirus comprising the gene expression control sequence, the target gene and the K35 fiber of the present invention is as described above, and the description thereof is omitted in order to avoid duplication of the substrate.
- a gene transfer composition comprising a Mesenchymal Stem Cell (MSC) into which a recombinant adenovirus containing a sequence of SEQ ID NO: 1 is introduced.
- MSC Mesenchymal Stem Cell
- the gene transfer composition of the present invention may be a cancer-specific gene transfer composition.
- the gene expression regulatory sequence contained in the adenovirus may be designed as a promoter and enhancer capable of specifically expressing a gene in liver cancer cells, and more preferably, In the specific examples of the present invention, it was confirmed that the gene expression was specifically expressed in both the AFP-positive liver cancer cell as well as the AFP negative liver cancer cell and the target gene was not expressed in the normal cell .
- the present invention provides a method of treating a cancer-specific adenovirus (pan-cancer specific oncolytic Ad)
- a cancer-specific adenovirus pan-cancer specific oncolytic Ad
- the effect of the gene transfer composition of the present invention on the kind of the desired gene is not limited to the kind of cancer.
- adenoviruses and stem cells of the present invention may be omitted in order to avoid duplication with the above-described contents, and the above-mentioned contents may be applied mutatis mutandis.
- A an HRE (hypoxia-response elements) domain sequence, (b) an enhancer A sequence of an AFP (Alpha-Feto Protein) promoter, (c) ) An enhancer B sequence of the AFP promoter, and (d) a gene expression control sequence comprising the AFP promoter sequence; A therapeutic gene operatively linked to the gene expression control sequence; And mesenchymal stem cells (MSC) into which recombinant adenovirus has been introduced, comprising a sequence encoding a knob of serotype 35 (K35) fiber (FIBER) Lt; / RTI >
- MSC mesenchymal stem cells
- the pharmaceutical composition may be for cancer treatment.
- the type of cancer is not limited to the type of the cancer, because the kind of cancer to be treated may be varied depending on the kind of the therapeutic gene inserted into the adenovirus of the present invention, the kind of the promoter, and the like.
- Specific examples of cancer include but are not limited to gastric cancer, lung cancer, liver cancer, cervical cancer, leukemia, pancreatic cancer, pediatric solid cancer, colon cancer, skin cancer, ovarian cancer, endometrial cancer, bladder cancer, kidney cancer, head and neck cancer, Prostate cancer, soft tissue cancer, thyroid cancer, gastric cancer, esophageal cancer, ankle cancer, breast cancer, or bile duct cancer.
- the effect of the oncytic adenovirus specific for pan cancer is confirmed.
- it is not limited to the type of the carcinoma, And may be used for the treatment of liver cancer.
- the cancer may be cancer cells or tumor tissue.
- the adenovirus-bearing stem cells can exhibit the ability to kill cancer cells through the expression of therapeutic genes in both AFP-positive and AFP-negative liver cancer cells, Adenovirus-bearing stem cells can be used for treatment.
- adenovirus-carrying stem cells (Ad-MSC) of the present invention
- therapeutic gene expression is possible specifically for cancer, and it does not affect other normal cells, , Can be administered systemically, is excellent in targeting to tumor cells and does not cause hepatotoxicity, and can significantly increase gene transfer efficiency.
- the mesenchymal stem cell itself is killed by the adenovirus after injection into the body, it is possible to solve the problem of side effects caused by the residual in mesenchymal stem cells.
- treatment refers to any act that inhibits or alleviates or alleviates the clinical situation associated with a disease. Treatment can also mean increased survival compared to the expected survival rate if not treated.
- the treatment may simultaneously include prophylactic measures other than therapeutic measures.
- treatment may mean, for example, death or killing of tumor cells.
- an "individual” may be a vertebrate, preferably a mammal, such as a dog, a cat, a mouse, a human, and the like.
- composition of the present invention may be formulated to further comprise a pharmaceutically acceptable carrier.
- pharmaceutically acceptable carrier refers to a carrier or diluent that does not substantially stimulate the organism and does not interfere with the biological activity and properties of the administered ingredients.
- the pharmaceutically acceptable carrier in the present invention may be a mixture of saline, sterilized water, Ringer's solution, buffered saline, dextrose solution, maltodextrin solution, glycerol, ethanol and one or more components of these components, If necessary, other conventional additives such as an antioxidant, a buffer, and a bacteriostatic agent may be added to formulate into the form of an injection suitable for injection into tissues or organs. It may also be formulated into an isotonic sterile solution or, in some cases, a dry preparation (especially a lyophilized preparation) which may be an injectable solution by adding sterile water or physiological saline.
- the composition of the present invention may further include a filler, an excipient, a disintegrant, a binder, a lubricant, and the like.
- the composition of the present invention may also be formulated using methods known in the art so as to provide rapid, sustained or delayed release of the active ingredient after administration to the mammal.
- administering means introducing the composition of the present invention to a patient by any suitable method, and the route of administration of the composition of the present invention may be carried out through various routes of oral or parenteral routes, ≪ / RTI > Intravenous, intraperitoneal, intravenous, intramuscular, subcutaneous, intradermal, oral, topical, intranasal, intrapulmonary, intrathecal, but not exclusively, preferably intravenously .
- the composition may be administered in a pharmaceutically effective amount. It will be apparent to those skilled in the art that the appropriate total daily dose may be determined by the practitioner within the scope of sound medical judgment.
- the specific therapeutically effective amount for a particular patient will depend upon a variety of factors, including the type and extent of the response to be achieved, the specific composition including whether or not other agents are used, the age, weight, And various factors including diet, time of administration, route of administration and minute of composition, duration of treatment, drugs used or co-used with the specific composition, and similar factors well known in the medical field.
- A549 human lung carcinoma cell line
- AFP-positive HCC Hep3B
- AFP-negative HCC Hep1
- HEK293 human embryonic kidney cell line expressing the adenovirus E1 region
- ATCC ATCC (USA).
- Cells were cultured in Dulbecco's modified Eagle's medium (Gibco BRL, Gaithersburg, MD) supplemented with 10% fetal bovine serum (FBS: Gibco BRL), penicillin (100 IU / mL), and gentamicin (20 ⁇ g / mL) All cell lines were stored in a humidified incubator at 37 ° C, 5% CO 2 .
- MSCs Human MSCs isolated from bone marrow aspirates in healthy adult male donors were received from Pharmicell Co., Ltd. (Seongnam, Korea). Cryopreserved MSC cells were thawed and used for the study. MSCs were cultured in low-glucose Dulbecco's modified Eagle's medium containing 10% FBS (Gibco BRL), penicillin (100 IU / mL), streptomycin (50 mg / mL) and gentamycin And incubated in a humidified incubator with 5% CO 2 .
- Ha2bm-d19-k35 / sLRP6, Ha2bm-d19-k35 / WNTi or HCC-oAd-WNTi were used interchangeably as markers for adenovirus expressing WNTi specifically for liver cancer.
- Test Example 1-1 Of the AFP promoter Enhancers and Siren ( silencer ) Recombinant liver cancer-specific promoter
- liver cancer-specific adenovirus In order to develop liver cancer-specific adenovirus, the promoter regions of AFP protein, which is highly expressed in liver cancer patients, were recombined and their promoter activities were compared.
- the enhancer A (enhancer A, 365 bp, SEQ ID NO: 3), the enhancer B (enhancer B, 193 bp, SEQ ID NO: 4), the distal (AFP minimal promoter, 300 bp, SEQ ID NO: 5) were amplified by PCR to obtain DNA fragments, and luciferase (luciferase, ) Were inserted into pGL3-Basic vector (Fig. 1).
- Test Example 1-2 Of the AFP promoter The enhancer Comparison of the activity of recombinant liver cancer-specific promoters in the sirens
- Huh7, Hep3B, and HepG2 cell lines expressing AFP exhibited a high luciferase activity, and almost all of the cancer cells and normal cells of hep1 and other tissues that did not express AFP exhibited luciferase activity I did.
- Two copies of the enhancer A and one copy of the enhancer B among the promoters used in the experiments were the highest in luciferase activity linked to a 2 bm bound to a minimal promoter and the plasmid was found to be specific As well as the specificity of the tissue to be expressed.
- Test Example 1-3 The expression of the gene is regulated by a modified AFP promoter Adenovirus Shuttle vector production
- A2bm and a2bSm which are the promoters showing the highest gene transfer efficiency, were selected from the results of the experiment (luciferase analysis) using plasmids in which the expression of luciferase was regulated by various recombinant promoters of Test Example 1-2, and AFPm And inserted into the gene of the non-replicable adenovirus, respectively, to prepare a virus.
- the non-replicable adenovirus was first constructed by inserting the GFP gene into the E1 shuttle vector p ⁇ E1sp1A of the adenovirus using HindIII and EcoRI restriction enzymes to construct a p ⁇ E1sp1A / GFP shuttle vector.
- the prepared vector was transfected with p ⁇ E1sp1A / a2bSm / GFP vector into which p ⁇ E1sp1A / a2bM / GFP and a2bSm promoter inserted with p ⁇ E1sp1A / AFPm / GFP, a2bm promoter inserted with AFPm promoter, Respectively.
- Test Example 1-4 The expression of the gene is regulated by a modified AFP promoter Adenovirus making
- E1 shuttle vectors prepared in Test Example 1-3 were linearized by cutting with Xmn I restriction enzyme, and the adenovirus total vector dE1 was linearized by cutting with BstB I restriction enzyme, and then a shuttle vector and a total vector together
- Adenoviruses AFPm-dE1 / GFP, a2bm-dE1 / GFP, a2bSm-dE1 / GFP, Ha2bm-dE1 / GFP and Ha2bSm-dE1 / GFP were finally prepared by homologous recombination in Escherichia coli BJ5183 (Fig.
- the five kinds of plasmid DNAs prepared in Test Example 1-3 were linearized by digesting with Pac I restriction enzyme, and then transformed into adenovirus producing cell line HEK293 using lipofectamine to produce virus Respectively.
- the resulting adenoviruses were re-infected with HEK293 cell line and purified by CsCl gradient (CsCl gradient) method to concentrate the adenovirus, and then subjected to a limiting dilution assay and an optical density of the viral genome Optical density, OD) was used to determine adenovirus titer.
- Test Example 1-5 Determination of regulation of liver cancer-specific gene expression by modified AFP promoter
- AFP AFPm-dE1 / GFP, a2bm-dE1 / GFP, a2bSm (d2)
- human cancer cell lines Huh7, HepG2, Hep3B and Hep1
- other tissue cancer cell lines A549) -DE1 / GFP, Ha2bm-dE1 / GFP and Ha2bSm-dE1 / GFP
- the population of cells expressing GFP was confirmed by FACS.
- the cells were cultured under hypoxic conditions (1% O 2 ) after each adenovirus infection and then cultured again under the normal oxygen concentration conditions for 2 cycles .
- the results are shown in Figs. 6A, 6B, 6C, 6D, 6E and 6F.
- Ha2bm-dE1 / GFP-induced GFP expression was the highest in Haemophilus influenzae hepatocarcinoma cell lines (Huh7, HepG2 and Hep3B) and Ha2bSm-dE1 / GFP was the highest .
- Ha2bm-dE1 / GFP and Ha2bSm-dE1 / GFP are hypoxia-inducible in hepatocellular carcinoma cell line (Hep1) and lung cancer cell line (A549) in which AFP is not expressed as well as hepatocellular carcinoma cells (Huh7, HepG2 or Hep3B)
- the expression level was increased compared with the normoxia condition.
- HaCaT, FIG. 6E it was confirmed that the expression level of GFP in all vectors was very low. Therefore, it was confirmed that Ha2bm-dE1 / GFP among the five candidate viruses as the cancer-specific promoter was the best cancer-specific gene expression virus, and the experiment was carried out as follows.
- Test Example 1-6 Determination of expression of liver cancer-specific gene by modified AFP promoter in liver cancer tissue
- adenovirus prepared in Test Example 1-4 can regulate gene expression by the AFP promoter specifically in liver cancer in cancer tissues
- tumors were formed using Hep3B, a liver cancer cell line, and a2bm-dE1 / GFP or Ha2bm-dE1 / GFP adenovirus was injected into the tumor to observe the expression of GFP by fluorescence.
- Hep3B cells were injected subcutaneously in a 6-week-old nude mouse to form a tumor.
- the tumor size was 200 mm 3 5 ⁇ 10 9 VP a 2 bm-dE1 / GFP or Ha 2 bm-dE1 / GFP were injected into the tumor three times at intervals of two days, respectively. After 3 days, the tumor was excised and paraffin blocks were prepared. The slices were cut into 3 ⁇ m thick slices and then immersed in xylene, 100%, 95%, 80%, 70% (deparafinization).
- a secondary antibody conjugated with alexa 488 was reacted for 2 hours at room temperature and then stained with DAPI (the nucleus was stained with blue), mounted with fluorescence mounting solution, and irradiated with a confocal laser microscope (confocal microscopy).
- adenovirus (Ha2bm-dE1 / GFP) carrying promoter containing HRE was higher than that of HRE-free promoter in tumor cells, and the expression of HRE- In addition, GFP expression was maintained in hypoxic sites in the tumor.
- Test Example 1-7 By the modified AFP promoter Adenovirus Production of hepatocellular cell-specific cytotoxic adenovirus whose replication is regulated
- the a2bm and Ha2bm promoters with the highest efficiency and specificity among the various promoters were selected based on the results of the studies using the non-replicable adenovirus, and the hepatoma cell specific cytotoxic adenovirus was constructed.
- HCC-targeting oAd vector In order to produce hepatocarcinoma-targeting adenovirus (HCC-targeting oAd vector), p ⁇ E1sp1A / a2bAFPm and p ⁇ E1sp1A / Ha2bAFPm vectors were cut into XhoI and BglII, and the a2bm and Ha2bm promoters were deleted from E1B19Dka, Virus shuttle vector to construct p ⁇ E1sp1A / a2bAFPm / d19 and p ⁇ E1sp1A / Ha2bAFPm / d19 shuttle vectors (FIG. 8).
- the prepared plasmid DNA was linearized by digesting with Pac I restriction enzyme and then transformed into adenovirus producing cell line HEK293 using lipofectamine to produce virus.
- the produced adenoviruses were reinfected in HEK293 cell line, and the adenovirus was purified by CsCl concentration gradient method and then purified by limiting dilution and optical density (OD) by the absorbance of virus genome.
- Test Example 1-8 Identification of cytotoxicity of hepatoma-specific cytotoxic adenovirus whose replication is regulated by modified AFP promoter
- D19, or Ha2bm-d19 adenovirus was added to various cell lines (Huh7, Hep3B, Hep1, IMR90 and MRC5) in order to compare hepatoma-specific cell killing ability by the adenovirus prepared in Test Example 1-7 MTT analysis was performed after each infection.
- Hep3B cell line showed cell killing ability similar to that of d19 adenovirus having strong cell killing ability.
- cell viability similar to that of the virus-untreated experimental group was observed, and it was confirmed that the adenovirus carrying the modified AFP promoter of the present invention specifically kills liver cancer cells.
- the cell killing ability is increased by about 60% under hypoxic conditions.
- AFP is expressed not only in cancer cells expressing AFP in a heterogeneous liver cancer tissue Cancer cells that do not have cancer cells can be removed.
- Test Example 1-9 Confirmation of virus replication potential of hepatoma-specific cytotoxic adenovirus whose replication is regulated by modified AFP promoter
- the Hep3B and A549 lung cancer cell lines were infected with a2bm-d19 or Ha2bm-d19 adenovirus
- the cell culture medium and living cells were collected and re-infected with HEK293 cell line to perform a limiting dilution test.
- Hep3B a hepatocellular carcinoma cell line
- a spheroid section infected with two kinds of adenoviruses a2bm-d19 or Ha2bm-d19 in a spheroid culture was used as a tissue immunostaining method using an antibody against E1A protein associated with replication of adenovirus Respectively.
- Test Example 1-11 In vivo liver cancer-specific cell death Adenovirus Ability to reproduce Verification of cell killing ability
- a tumor formed by injecting Hep3B cell line subcutaneously in nude mice was injected with PBS, adenovirus a2bm-d19 or adenovirus
- the virus Ha2bm-d19 was administered, respectively.
- the expression of E1A protein associated with adenovirus replication in tumor tissues was examined using TUNEL assays.
- Test Example 1-12 Isotope Model-based replication of in vivo liver cancer Adenovirus Verification of antitumor effect
- Animals were purchased from Orient Inc. (Korea) at 6 weeks of age in male nude mice (BALB / c-nu). The temperature of the animal feeding room was maintained at 22 ⁇ 2 °C and the humidity was maintained at 55 to 60%. The dark circulation was controlled by 12 hour unit, and sterilized solid feed (Central laboratory animal, Seoul, Korea) The water was freely ingested.
- Hep3B cells stably expressing 1 x 10 6 luciferase suspended in 20 ⁇ l of HBSS at the abdominal subcutaneous side of 6-week-old male nude mice were cultured in Matrigel MATRIGEL, BD Bioscience, San Jose, CA, USA) and injected directly into the left hepatic lobe.
- the blood was collected from the mice and the serum was separated.
- the AFP expression level in the blood was measured using an AFP ELISA kit (R & D Systems, Minneapolis, MN, USA) and the AFP expression level was 700 ng /
- PBS or two adenoviruses were intravenously injected three times with 2.5 x 10 10 VPs every two days and 200 mg / kg luciferin / (Promega, Madison, Wis., USA) was intraperitoneally injected intraperitoneally and then subjected to optical imaging using IVIS 100 (Xenogen, Alameda, CA, USA). Signals from imaging were quantitatively analyzed using IGOR-PRO Living Image software (Xenogen, Alameda, CA, USA). Five weeks after the viral injection, the blood was collected and serum was separated, and the amount of AFP expression in the blood was measured by ELISA. Liver cancer tissues were extracted, weighed, and made into paraffin blocks. After intravenous injection of PBS, a2bm-d19 or Ha2bm-d19, the antitumor effect was confirmed weekly using optical imaging.
- the tumor growth inhibitory effect is about 82%, and Ha2bm-d19 administration has excellent antitumor effect.
- the group treated with Ha2bm-d19 like total flux, A5b at a concentration 5-fold lower than the a2bm-d19-treated group.
- Test Example 2-1 Optimization of adenovirus inflow efficiency to MSC
- Each of the fiber-modified adenoviruses was prepared according to the following method.
- PSK5543-K35 an adenovirus shuttle vector inserted with the fiber sequence of adenovirus type 35 (serotype 35) of SEQ ID NO: 1, was homologously recombined with dE1 / GFP, a non-cloned adenovirus GFP gene inserted into the adenovirus E1 site To produce dE1-35 / GFP virus (Fig. 16A).
- the adenovirus shuttle vector pSK5543-RGD in which RGD was inserted at the adenovirus fiber end, was dE1-RGD / GFP virus prepared by homologous recombination with the non-cloned adenovirus dE1 / GFP inserted in the adenovirus E1 region of the GFP gene (Fig. 16B).
- the produced adenovirus was transformed into HEK293 cell line and adenovirus was produced by mass proliferation.
- GFP-expressing Ad5 having different fiber types: dE1 / GFP (Ad5 vector with wild-type fiber), dEl- (Ad5 vector containing the RGD potent in the HI loop of Ad fiber), dE1-k3S / GFP (Ad5 vector containing the RGD protein in Ad fiber), dEl-RGD / GFP DE1-VSVG (12C) / GFP and dE1-VSVG (12R) / GFP.
- MSCs Prior to gene transfer, MSCs were inoculated into 24-wells at a density of 5 ⁇ 10 4 cells / well for 24 h. The MSC cells were treated with 0, 5, 20 or 100 MOI of each Ad and incubated at 37 DEG C for 48 hours. GFP expression was measured by fluorescence microscopy (Olympus IX81; Olympus Optical, Tokyo, Japan).
- the transduction efficiency of dE1 / GFP and dE1-RGD / GFP in MSCs was significantly low in all MOIs (multiplicities of infection).
- the higher GFP expression level was dose-dependently, but the efficiency was significantly lower.
- MSC showed very high transfer efficiency. This was in agreement with the results of LacZ expression.
- Tumor killer adenovirus H5cmT-Rd19-k35 / Luc was infected with MSC of 0.02, 0.05, 0.1, 0.2, 0.5 or 1 MOI and cell viability was confirmed by MTT assays. In order to confirm the amount of virus produced in MSC, virus replication ability was confirmed by Q-PCR.
- H5 cmT-Rd19 was prepared as follows.
- the Rb7 ⁇ 19 / E1B55 region was first PCR amplified using polymerase chain reaction reaction) to obtain a desired gene region.
- 5'-GCGGAATTCACTCTTGAGTGCCAGCGAGTA-3 'as the sense primer and 5'-CGCGGATCCACATTTCAGTACCTCAATCTG-3' as the antisense primer were used and EcoRI and BamHI restriction enzyme sites were inserted for convenience of cloning.
- the product was digested with EcoRI and BamHI, inserted into the pBluescript II SK (+) vector, and the vector containing the 5MMTERT promoter prepared in our laboratory was digested with ClaI and EcoRI and inserted. Finally, the six HRE sequences (+) / 5MMTERT / Rb7 ⁇ 19 vector prepared as described above. The enhancers and promoters recombined from pBluescriptSK (+) / HRE65MMTERT / Rb7 ⁇ 19 thus prepared were ligated to the E1 shuttle And inserted into the vector p ⁇ E1sp1B.
- the E1 shuttle vector prepared by the above method was digested with XmnI restriction enzyme, and the BstB restriction enzyme
- the recombinant plasmid DNA obtained from BJ5183 was further transformed into DH5 [alpha] l E. coli to amplify the DNA.
- the recombinant plasmid DNA obtained in BJ5183 was further transformed into E. coli DH5 [alpha].
- the homologous recombinant plasmid DNA was obtained from E. coli DH5a and treated with HindIII restriction enzyme to select each recombinant adenovirus genome.
- the knob portion of the virus with the H5cmT-Rd19 as a backbone was substituted with the sequence of k35 (SEQ ID NO: 1) And the Luc gene was inserted and used for imaging.
- the cell-killing ability and the viral proliferative capacity were increased depending on the infection time or the concentration-dependency of the precancerous tumor-destroying adenovirus.
- MSC cell therapy agent carrier
- the MSC is removed by the adenovirus after a certain period of time after the in vivo injection, it has been confirmed that the use of the conventional MSC as a cell therapy agent can alleviate the concern about the survival of MSC in vivo. Therefore, the cell therapeutic agent loaded with adenovirus in the MSC of the present invention can maximize the anticancer action by increasing the production amount of virus and has the effect of minimizing side effects of MSC.
- 6-week-old male nude mice were subcutaneously subcutaneously excised and Hep3B cells stably expressing 1 x 10 6 luciferase suspended with 20 ⁇ l of HBSS were cultured in a matrigel 20 [mu] l, and injected directly into the left hepatic lobe (Fig. 19).
- the blood was collected from the mice and the serum was separated.
- AFP ELISA kit was used to measure the amount of AFP expressed in the blood, and mice having the AFP expression level of 300 ng / ml or more were used in the experiment.
- tumorigenesis and changes in nude mice administered with liver cancer cell lines expressing luciferase by non-invasive method through luminescence imaging were observed in real time (Fig. 20).
- Test Example 2-4 Tumor killing Adenovirus Cancer Target of Gene Therapy by Embedded Stem Cells
- H5cmT-Rd19-k35 / Luc was first treated with 0.2 MOI, 0.5 MOI and 1 MOI to MSC Respectively. After 24 hours, each mesenchymal stem cell was administered to the liver cancer allograft model (nude mouse) through the tail vein at 1 ⁇ 10 6 cells per mouse. As a control group, PBS was administered via a tail vein to a liver cancer allograft model. From 2 to 28 days after the administration, luminescence imaging was used to observe the virus migration and replication ability in real time.
- Ad-MSC was successfully transferred to the tumor site in the treatment group in which Ad-MSC infected at a concentration of 0.5 MOI and 1 MOI was administered using the precancerous tumor-destroying adenovirus, and 28 And the virus was present even at the beginning of the treatment.
- the tumor-killing virus according to the present invention is vigorously replicated and thus shows a therapeutic effect while maintaining the virus for a long time in the tumor.
- Test Example 2-5 Production and Production of Cancer-Targeted Adenovirus for Stem Cell Loading
- A2bm which was small in size and superior in promoter activity was selected through experiments comparing the activity of the liver cancer-specific promoter of Example 1, and Ha2bm inserted with HRE capable of viral replication even under hypoxia conditions was selected as a liver cancer-specific promoter
- a fiber of SEQ ID NO: 1 having an excellent gene transfer efficiency was selected from MSC.
- a reporter gene Luc was inserted into the final Ha2bm-d19-k35 / Luc were selected as candidates.
- Ha2bm-d19-k35 was first prepared by linearizing the ⁇ E1sp1A / Ha2bm / d19 shuttle vector with Xmn I and the dE1-k35 total vector with BstB I and transforming into BJ5183 E- coli through E1 homologous recombination (Fig. 22).
- the firefly luciferase expressing cassette was ligated with the Ad E3 shuttle vector (pSP72 E3) to prepare the pSP72? E3 / Luc Ad E3 shuttle vector.
- the sequence encoding WNTi was subcloned from pCA14-sLRP6E1E2 [60] and then ligated into pSP72 ⁇ E3 to generate the pSP72 ⁇ E3 / WNTi_Ad E3 shuttle vector.
- Ad E3 shuttle vector (pSP72 ⁇ E3 / Luc and pSP72 ⁇ E3 / WNTi) is simultaneously in E.
- HCC-oAd-Luc Ha2bm-d19-k35 / WNTi
- the homologous recombinant Ad plasmid was digested with Pac I and HCC-oAd-Luc and HCC-oAd-WNTi were prepared by transfecting HEK293 cells, a production cell line, with lipofectamine (Fig. 23B).
- HCC-oAd-Luc and HCC-oAd-WNTi were grown in A549 cells and purified by CsCl gradient centrifugation.
- the purified virus was stored at -80 ° C until use.
- adenovirus vector designed to express GFP prepared in Test Example 2-1 was introduced into mesenchymal stem cells at 500 MOI, and after 24 hours, GFP And the degree of gene expression was confirmed.
- viruses were infected with MSC at 0, 50, 100, or 200 MOI using Ha2bm-d19-k35 / Luc (HCC-oAd-Luc), a liver cancer-specific killing adenovirus expressing the Luc gene, 48 hours post infection) using the IVIS imaging system (Xenogen Corp., Alameda, Calif.). Bioluminescence signal intensities were obtained photons (p / s) obtained per second from the region of interest.
- Test Example 2-7 Liver cancer target for stem cell expression expressing therapeutic gene Adenovirus Production and production
- A2bm which was small in size and superior in promoter activity was selected through experiments comparing the activity of liver cancer specific promoter and Ha2bm inserted with HRE capable of viral replication even under hypoxia conditions was finally selected as a promoter, Adenovirus was constructed.
- Ha2bm-d19-k35 total vector Spe I The vector was linearized with Xmn I and transformed into BJ5183 E- coli to construct the Ha2bm-d19-k35 / sLRP6 plasmid through E3 homologous recombination (Fig. 25 and Fig. 26).
- the prepared plasmid DNA was linearized by digesting with Pac I restriction enzyme and then transformed into adenovirus producing cell line HEK293 using lipofectamine to produce virus.
- the resulting adenovirus was re-infected with HEK293 cell line and purified by limiting dilution assay and optical density by viral genome absorbance after pure adenylovirus was concentrated by CsCl density gradient method density, OD) of the adenovirus was determined.
- Test Example 2-8 Liver cancer target kill Adenovirus Comparison of killing ability against liver cancer cells and normal cells
- Hep3B, Huh7, and Hep1 which are hepatocellular carcinomas, were cultured at 0.1, 0.5, 2, 10, and 50 MOI, respectively, in liver cancer cell specific hepatocyte-specific killing adenovirus Ha2bm-d19-k35 / sLRP6. And 72 hours after infection, cell viability was confirmed by MTT assay.
- liver cancer-specific killing adenovirus in liver cancer cell lines Hep3B, Huh7, and Hep1.
- killing effect was not observed in HDF, which is a normal cell. This means that Ha2bm-d19-k35 / sLRP6 does not kill the normal cells but has excellent targeting ability only to cancer cells.
- Ha2bm-d19-k35 / sLRP6 showed excellent cancer cell-killing ability in hepatocellular carcinoma cells that were AFP-positive (Hep3B, Huh7) as well as AFP-negative hepatoma cells (Ha1bm-d19-k35 / sLRP6) Of the patients with clinical liver cancer.
- Test Example 2-9 dose optimization introduced in oAd's MSC
- the hepatoma-specific killing adenovirus Ha2bm-d19-k35 / sLRP6 was infected with MSC at 0.5, 1, 2, 5, 10, 20 and 50 MOI, respectively MTT assay was performed on the 2nd, 5th, and 5th cells to compare cell viability of mesenchymal stem cells.
- the survival rate of MSCs was significantly lower at 5 days after infection than at 2 days at all loading (p> 0.001). It was confirmed that the cell killing ability was increased with increasing virus concentration and time. This is because, when the MSC reaches the cancer tissue by the tumor targeting, the MSC can be removed in vivo as well as the tumor cells by the cell killing effect by the virus. Therefore, when the MSC is used as a cell therapy agent, It can be resolved.
- the cell therapeutic agent loaded with the adenovirus in the MSC of the present invention increases the content of virus through the effect of proliferation in the MSC during the time of migration to cancer tissue, maximizing the anti-cancer action, Suggesting the possibility of enhancing the safety of the cell therapy agent by eliminating the MSC, thereby minimizing the side effects that may occur due to the survival of the MSC in vivo.
- the level of virus proliferation was measured in the MSCs.
- Test Example 2-10 Identification of adenovirus production in MSC
- liver cancer-specific killing adenoviruses in MSC To determine the production of liver cancer-specific killing adenoviruses in MSC, the liver cancer-specific killing adenovirus Ha2bm-d19-k35 / sLRP6 was administered at 0.5, 1, 2, 5, 10, 20, 50 and 100 MOI QPCR was performed on days 2 and 5 after infection with MSC to compare the virus production.
- Test Example 2-11 Liver cancer target kill Adenovirus Mounted stem cells ( HCC - oAd -WNTi / MSC ) On the anti-tumor effect
- HCC-oAd-WNTi (Fig. 38a) expressing WNTi was prepared using the modified AFP promoter (Ha2bm).
- HCC-oAd-WNTi prepared in the present invention can suppress the Wnt signaling pathway.
- Western blotting was performed on Hep3B cells infected with HCC-oAd or infected with HCC-oAd-WNTi The degree of expression of various downstream elements related to the Wnt and Wnt signaling pathways was examined.
- HCC-oAd-WNTi treatment induced significantly lower levels of Wnt expression in Hep3B cells than cells infected with control oAd (HCC-oAd) or negative control (untreated group).
- HCC-oAd-WNTi treatment significantly reduced expression levels of various downstream elements such as ⁇ -catenin and p-MEK (phospho-MAPK / ERK), which are known to promote rapid cancer cell proliferation and EMT.
- the expression level of the mesenchymal marker E-cadherin was significantly higher in HCC-oAd-WNTi infected Hep3B cells than in untreated cells or HCC-oAd infected cells.
- HCC-oAd-WNTi AFP-positive HCC cells were incubated with clinically approved oAd (H101), homologous control HCC-oAd or HCC-oAd -WNTi at various MOIs.
- HCC-oAd-WNTi induced a dose-dependent and significantly better cancer cell killing effect compared to H101 or control HCC-oAd in all MOIs of AFP-positive Hep3B cells (P ⁇ 0.001) .
- WNTi expression can enhance the cancer cell killing effect of HCC-specific oAd.
- HCC-oAd-WNTi showed 5.46-fold or 2.29-fold more cytotoxicity than H101 or control HCC-oAd at 10 MOI for AFP-positive HCC cells (Hep3B).
- HCC-oAd-WNTi increased cancer cell killing effect in both hypoxic and normal oxygen environments than HCC-oAd.
- HCC-oAd-WNTi showed cancer cell killing effect 1.2 times higher than normal oxygen in hypoxic condition (P ⁇ 0.001).
- Hep3B cells and HCC-oAd-WNTi / MSC were co-cultured at a cell ratio of 1: 1 in order to evaluate the tumor killing ability of HCC-oAd-WNTi / MSC against HCC .
- Hep3B cells treated with HCC-oAd-WNTi or treated with HCC-oAd-WNTi / MSC showed similar viability to the untreated group on the first day after treatment, and survival rate of cancer cells after that Is to confirm again that the steam-hawk is a cytopathic effect.
- HCC-oAd-WNTi and HCC-oAd-WNTi / MSC showed higher cancer cell killing effect on hypoxic conditions than the normal oxygen condition on the 3rd and 5th days of treatment by the Ha2bm promoter.
- HCC-oAd-WNTi / MSC showed significantly more potent hepatocellular carcinomas than HCC-oAd-WNTi on days 3 or 5 of treatment at normal oxygen or hypoxic conditions (P ⁇ 0.05, P ⁇ 0.01) Killing effect.
- liver cancer target kill Adenovirus Mounted stem cells ( HCC -oAd-WNTi / MSC ) On the anti-tumor effect
- luciferase-expressing Hep3B tumor model mice were treated with PBS, MSC (1 x 10 cells) a (1x10 6 MSC infected for 18 hours with 5x10 8 VP) HCC-oAd- WNTi (5x10 8 VPs) or HCC-oAd-WNTi / MSC tail was treated by intravenous injection.
- HCC-oAd-WNTi HCC-oAd-WNTi
- 1X10 6 after 24 hours MSCs were administered via the tail vein to a liver cancer model (nude mice).
- PBS and the same amount of virus-free (1X10 6 cells were infected with MSCs or equivalent amounts of Ad (5X10 8 VP) infected with MSC in the tail vein.
- HCC-oAd-WNTi / MSC Small HCC tumors were observed (Fig. 32 and Fig. 33A). Similar trends were observed when tumors were evaluated by weighing (Fig. 33B).
- HCC-oAd-WNTi / MSC was administered at doses lower than the conventional oAd dose range ( ⁇ 2x10 10 VP) commonly used for systemic treatment of tumor-bearing mice, but still had a strong antitumor effect.
- Test Example 2-12 Destruction of liver cancer in vivo Adenovirus Observation of hepatic changes by embryonic stem cells
- the cancer-specific killing adenovirus Ha2bm-d19-k35 / sLRP6 was infected with MSC at 5 MOI for 18 hours, Mesenchymal stem cells (1 ⁇ 10 6 Cells) were administered via the tail vein to a liver cancer allograft model (nude mice).
- PBS an equal volume of MSC not infected with 200 ⁇ l of virus (1 ⁇ 10 6 Cells) and Ad naked (the oncolytic adenovirus Ha2bm-d19-k35 / sLRP6, 5x10 8 VP) that is not infected with the MSC in the tail vein, respectively, were administered twice a day, and 9 13.
- Blood was collected from four groups of mice three days after the second injection and serum levels of alanine transaminase (ALT) and aspartic acid aminotransferase (AST) were evaluated together with non-tumor normal mice as controls The hepatic toxicity was measured. Specifically, 0.5 to 1 mL of mouse blood is collected, followed by 20 to 30 minutes at room temperature, followed by centrifugation at 3000 rpm for 30 minutes. Serum phosphorus supernatant was collected and transferred to a toxicology testing laboratory.
- ALT alanine transaminase
- AST aspartic acid aminotransferase
- mice treated with HCC-oAd-WNTi showed the highest AST levels (1.6-fold higher than the PBS-treated group, P ⁇ 0.05).
- AST levels 1.6-fold higher than the PBS-treated group, P ⁇ 0.05.
- no significant increase in AST levels was observed in mice treated with HCC-oAd-WNTi / MSC. Rather, it can be confirmed that the level of AST is maintained at a level equivalent to that of a normal mouse.
- This demonstrates that tumor-specific delivery of MSC-mediated oAd can prevent the problem of hepatic damage by HCC tumors, as well as the liver-related hepatocarcinoma associated with traditionally systemically administered Ad.
- Test Example 2-13 Destruction of liver cancer in vivo Adenovirus Analysis of biodistribution by systemic administration of mounted stem cells
- HCC-oAd-WNTi or HCC-oAd-WNTi / MSC can be used to further investigate whether HCC-oAd-WNTi / MSC can enhance hepatocyte isolation, Were analyzed.
- Hep3B-Luc hepatocarcinoma model was prepared, and then PBS, MSC (1 ⁇ 10 6 cells) the Ha2bm-d19-k35 / sLRP6 ( HCC-oAd-WNTi, 5x10 8 VP), or 5x10 8 VP Ha2bm-d19-k35 / sLRP6 MSC (Ad-MSC, 1x10 6 cells) infected for 18 hours with adenovirus in the tumor On the 9th and 13th days after transplantation, they were administered intravenously in the tail vein, respectively.
- mice Twenty-four hours after the second administration in each group, the mice were anesthetized to sacrifice the blood, and liver tissue, normal liver tissue, stomach, spleen, lung, pancreas, heart and kidney were extracted and DNA Respectively.
- the organs were frozen using liquid nitrogen, and then pulverized using a mortar and mortar. 20 mg of the pulverized organs were put into a new tube and organs were lysed using a lysis buffer and DNA was obtained.
- the concentration of the DNA was measured using a nanodrop spectrometer, and 100 ng of the DNA was extracted using a QIAamp DNA blood mini kit (Qiagen), real-time quantitative polymerase chain reaction
- the number of viral genomes was measured in each sample through the reaction. The number of viral genomes in each sample was quantitatively verified for the distribution of liver cancer-specific killing adenoviruses.
- the liver absorbed HCC-oAd-WNTi / MSC was significantly reduced (P ⁇ 0.001) compared to naked HCC-oAd-WNTi. Also important is that HCC-oAd-WNTi / MSC accumulates in the tumor 4,824.2-fold higher than naked HCC-oAd-WNTi (P ⁇ 0.001).
- Test Example 2-14 Destruction of liver cancer in vivo Adenovirus Observation of hepatocarcinoma histologic changes by embryonic stem cells
- Ad-MSC The tumor treatment effect of Ad-MSC was confirmed histologically in the liver cancer allograft model.
- oAd was prepared by infecting MSC for 24 hours at 5 MOI with Ha2bm-d19-k35 / sLRP6 (HCC-oAd-WNTi), a liver cancer-specific killing adenovirus, respectively.
- Liver cells for liver cancer orthotopic transplant model (nude mouse), a graft and 9 days and after 13 days was administered through the tail vein, the MSC of the 1X10 6 to liver cancer orthotopic transplant model (nude mouse) (Ad-MSC treated group; HCC -oAd-WNTi / MSC).
- Ad-MSC treated group HCC -oAd-WNTi / MSC.
- PBS PBS treated group; PBS
- MSC uninfected MSC
- Ad Ad
- liver tissue was obtained in mice of four groups of PBS, MSC, Ad, and Ad-MSC. Liver tissue was fixed with 10% formalin, planted in paraffin and cut into 5 ⁇ m thick. (100%, 95%, 80%, 70% ethanol solution) was deparafinized and the hematoxylin and eosin stain and collagen fibrils And stained with masson's trichrome. Next, immunohistochemical staining was performed using CD90, which is a marker of human MSC, and PCNA (proliferating cell nuclear antigen) antibody, which can confirm cell proliferation, in the same tissue.
- CD90 which is a marker of human MSC
- PCNA proliferating cell nuclear antigen
- the tissue slides were immersed in xylene, 100%, 95%, 80%, and 70% ethanol solution in order to deparaffinize and immersed in 0.5% NP40 solution to increase the permeability of the tissue.
- ABSC-peroxidase kit DAKO, Carpinteria, Calif.
- DAKO Carpinteria, Calif.
- PCNA antibody DAKO, Glostrup, Denmark
- the presence of MSC was confirmed by staining of CD90, a marker of MSC.
- CD90 was positive in the liver tissue of MSC-treated mice and HCC-oAd-WNTi or HCC-oAd- In liver tissues treated with WNTi / MSC, CD90 was negative. Only in the MSC-only group, the MSC remained in the liver for a long time, which means that the MSC that has completed the gene transfer was cleanly removed by the Ad loaded on it, and the possibility of side effects caused by the remaining MSC could be excluded , It can be said that the Ad-loaded stem cells of the present invention have excellent characteristics as a therapeutic agent.
- HCC-oAd-WNTi / MSC treatment significantly reduced the level of proliferating cells and effectively inhibited the proliferation of HCC tumors, Respectively.
- Test Example 2-15 HCC - oAd - WNTi / MSC Improved pharmacokinetics pharmacokinetic ) Verify Profile
- HCC-oAd-WNTi was rapidly removed from the blood.
- HCC-oAd-WNTi / MSC maintained blood levels 12- and 3,200-fold higher (P ⁇ 0.001) than naked HCC-oAd-WNTi at 1 hour and 24 hours after injection, This means that the MSC effectively protects the HCC-oAd-WNTi during the cycle.
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Claims (15)
- 목적 유전자 및 서열번호 1의 서열을 포함하는 재조합 아데노바이러스를 함유하는 항암용 중간엽 줄기세포(Mesenchymal Stem Cell, MSC).
- 제1항에 있어서,상기 재조합 아데노바이러스는 목적 유전자의 발현을 조절하는 유전자발현 조절서열을 더 포함하는 것인, 항암용 중간엽 줄기세포(MSC).
- 제2항에 있어서,상기 유전자발현 조절서열은 서열번호 5의 AFP 프로모터 서열 또는 서열번호 8의 TERT 프로모터 서열을 포함하는 것인, 항암용 중간엽 줄기세포(MSC).
- 제1항에 있어서,상기 중간엽 줄기세포는 0.01 MOI 초과 내지 100 MOI 미만 농도의 목적 유전자 및 서열번호 1의 서열을 포함하는 재조합 아데노바이러스;로 50시간 이하로 형질감염된 것인, 항암용 중간엽 줄기세포(MSC).
- 목적 유전자 및 서열번호 1의 서열을 포함하는 재조합 아데노바이러스가 도입된 중간엽 줄기세포를 포함하는 유전자 전달용 조성물.
- 제5항에 있어서,상기 재조합 아데노바이러스는 목적 유전자의 발현을 조절하는 유전자발현 조절서열을 더 포함하는 것인, 유전자 전달용 조성물.
- 제5항에 있어서,상기 조성물은 전신 투여 또는 국소 투여용 인, 유전자 전달용 조성물.
- 제5항에 있어서,상기 조성물은 0.01 MOI 초과 내지 100 MOI 미만 농도의 목적 유전자 및 서열번호 1의 서열을 포함하는 재조합 아데노바이러스;로 50시간 이하로 형질감염된 중간엽 줄기세포를 포함하는 것인, 유전자 전달용 조성물.
- 목적 유전자 및 서열번호 1의 서열을 포함하는 재조합 아데노바이러스가 도입된 중간엽(Mesenchymal Stem Cell, MSC)를 약제학적 유효량으로 포함하는 암 치료용 약제학적 조성물.
- 제9항에 있어서,상기 재조합 아데노바이러스는 목적 유전자의 발현을 조절하는 유전자발현 조절서열을 더 포함하는 것인, 약제학적 조성물.
- 제9항에 있어서,상기 조성물은 0.01 MOI 초과 내지 100 MOI 미만 농도의 목적 유전자 및 서열번호 1의 서열을 포함하는 재조합 아데노바이러스;로 50시간 이하로 형질감염된 중간엽 줄기세포를 포함하는 것인, 유전자 전달용 조성물.
- 혈청형 35의 파이버(fiber) 노브(knob)를 포함하는 줄기세포 도입능이 개선된 재조합 아데노바이러스.
- 제12항에 있어서,상기 혈청형 35의 파이버(fiber) 노브는 서열번호 1의 서열로 이루어지는 것인, 재조합 아데노바이러스.
- 제12항에 있어서,상기 재조합 아데노바이러스는 목적 유전자의 발현을 조절하는 유전자발현 조절서열 및 목적 유전자를 더 포함하는 것인, 재조합 아데노바이러스.
- 제12항에 있어서,상기 재조합 아데노바이러스는 5'에서 3' 방향으로 (a) 6카피(copy)의 HRE(hypoxia-response elements) 도메인 서열; (b) 2카피의 AFP(Alpha-Feto Protein) 인핸서 A 서열, (c) 1카피의 AFP 프로모터의 인핸서 B 서열, 및 (d) AFP 프로모터 서열 또는 TERT 프로모터 서열을 포함하는 유전자 발현 조절서열; 상기 유전자발현 조절서열에 작동 가능하게 연결된(operatively linked) 목적 유전자; 및 혈청형 35의 파이버(fiber) 노브(knob) 서열을 포함하는 것인, 재조합 아데노바이러스.
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| US16/772,033 US11850215B2 (en) | 2017-12-13 | 2018-12-12 | Recombinant adenoviruses and stem cells comprising same |
| JP2020532737A JP7558808B2 (ja) | 2017-12-13 | 2018-12-12 | 組換えアデノウイルスおよびこれを含む幹細胞 |
| EP18887870.6A EP3725875A4 (en) | 2017-12-13 | 2018-12-12 | RECOMBINANT ADENOVIRUS AND STEM CELLS WITH IT |
| SG11202005509YA SG11202005509YA (en) | 2017-12-13 | 2018-12-12 | Recombinant adenoviruses and stem cells comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116036313A (zh) * | 2023-02-02 | 2023-05-02 | 中国医学科学院血液病医院(中国医学科学院血液学研究所) | 一种基于间充质干细胞的治疗肝癌的组合物 |
| JP2023537103A (ja) * | 2020-08-10 | 2023-08-30 | メゾブラスト・インターナショナル・エスアーエールエル | 細胞組成物及び治療方法 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG11202005934WA (en) * | 2017-12-29 | 2020-07-29 | Genemedicine Co Ltd | Cell sheet for gene delivery |
| WO2022092795A1 (ko) * | 2020-10-27 | 2022-05-05 | 연세대학교 산학협력단 | 종양 타겟팅 향상 및 바이러스 대량 생산을 가능한 중간엽줄기세포 |
| CN117778327A (zh) * | 2022-09-27 | 2024-03-29 | 清华大学 | 工程化的间充质干细胞及其用途 |
| CN118267407A (zh) * | 2022-12-30 | 2024-07-02 | 上海元宋生物技术有限公司 | 药物组合物 |
| CN118267408A (zh) * | 2022-12-30 | 2024-07-02 | 上海元宋生物技术有限公司 | 药物组合物及其应用 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US578366A (en) | 1897-03-09 | James b | ||
| WO1994002167A1 (en) | 1992-07-22 | 1994-02-03 | The Trustees Of Princeton University | p53 VACCINE |
| WO1996030385A1 (en) | 1995-03-31 | 1996-10-03 | Case Western Reserve University | Viral vectors and their use for treating hyperproliferative disorders, in particular restenosis |
| US5601818A (en) | 1991-07-26 | 1997-02-11 | University Of Rochester | Cancer therapy utilizing malignant cells expressing HSV-TK |
| WO1997016459A1 (fr) | 1995-10-31 | 1997-05-09 | Rhone-Poulenc Rorer S.A. | Application de la proteine gax au traitement de cancers |
| US5631236A (en) | 1993-08-26 | 1997-05-20 | Baylor College Of Medicine | Gene therapy for solid tumors, using a DNA sequence encoding HSV-Tk or VZV-Tk |
| US5783666A (en) | 1991-01-16 | 1998-07-21 | The Johns Hopkins University | APC (adenomatous polyosis coli) protein |
| US20060062764A1 (en) * | 2004-08-25 | 2006-03-23 | Seshidar-Reddy Police | Fiber-modified adenoviral vectors for enhanced transduction of tumor cells |
| KR20120036688A (ko) * | 2010-10-08 | 2012-04-18 | 연세대학교 산학협력단 | 재조합된 유전자발현 조절서열을 가지는 종양 특이적 발현이 개선된 유전자 전달체 |
| KR20120099317A (ko) * | 2011-01-26 | 2012-09-10 | 연세대학교 산학협력단 | 암세포 특이적 유전자 발현을 위한 재조합 유전자발현 조절서열 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6905678B2 (en) * | 2001-07-07 | 2005-06-14 | Crucell Holland B.V. | Gene delivery vectors with cell type specificity for mesenchymal stem cells |
| WO2003062400A2 (en) | 2002-01-24 | 2003-07-31 | The Scripps Research Institute | Fiber shaft modifications for efficient targeting |
| KR100488395B1 (ko) * | 2002-06-03 | 2005-05-10 | 이한식 | 버섯재배용 골목의 밀봉 및 살균방법 |
| CN100361710C (zh) * | 2004-06-07 | 2008-01-16 | 成都康弘生物科技有限公司 | 肿瘤细胞专一表达免疫调节因子gm-csf的溶瘤性腺病毒重组体的构建及其应用 |
| CN101068933A (zh) | 2004-08-25 | 2007-11-07 | 细胞基因系统有限公司 | 用于肿瘤细胞增强转导的纤维修饰的腺病毒载体 |
| US20070010016A1 (en) * | 2005-03-11 | 2007-01-11 | Mccelland Alan | Gene transfer with adenoviruses having modified fiber proteins |
| KR100993881B1 (ko) * | 2007-11-28 | 2010-11-11 | 연세대학교 산학협력단 | 유전자 전달체의 유전자 전달효율 개선 및 바이러스 보존용조성물 |
| KR101497035B1 (ko) * | 2010-04-26 | 2015-02-27 | 주식회사 녹십자 | 종양 특이적 프로모터 및 이를 포함하는 종양살상 바이러스 벡터 |
| KR101946666B1 (ko) | 2011-08-23 | 2019-02-11 | 고쿠리츠 켄큐 카이하츠 호진 이야쿠 키반 켄코 에이요 켄큐쇼 | 제한 증식형 아데노바이러스 |
| KR101651171B1 (ko) * | 2014-05-28 | 2016-08-25 | 연세대학교 산학협력단 | Il-12를 발현하는 간엽 줄기세포를 포함하는 간암 치료용 조성물 및 이를 이용한 치료방법 |
| CN110062978B (zh) | 2017-11-13 | 2022-03-29 | Oppo广东移动通信有限公司 | 适配器、终端设备及其电池安全监控方法和监控系统 |
-
2018
- 2018-12-12 KR KR1020180160424A patent/KR102167934B1/ko active Active
- 2018-12-12 WO PCT/KR2018/015800 patent/WO2019117632A1/ko not_active Ceased
- 2018-12-12 EP EP18887870.6A patent/EP3725875A4/en not_active Withdrawn
- 2018-12-12 JP JP2020532737A patent/JP7558808B2/ja active Active
- 2018-12-12 CN CN201880081142.1A patent/CN111630159A/zh active Pending
- 2018-12-12 US US16/772,033 patent/US11850215B2/en active Active
- 2018-12-12 SG SG11202005509YA patent/SG11202005509YA/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US578366A (en) | 1897-03-09 | James b | ||
| US5783666A (en) | 1991-01-16 | 1998-07-21 | The Johns Hopkins University | APC (adenomatous polyosis coli) protein |
| US5601818A (en) | 1991-07-26 | 1997-02-11 | University Of Rochester | Cancer therapy utilizing malignant cells expressing HSV-TK |
| WO1994002167A1 (en) | 1992-07-22 | 1994-02-03 | The Trustees Of Princeton University | p53 VACCINE |
| US5631236A (en) | 1993-08-26 | 1997-05-20 | Baylor College Of Medicine | Gene therapy for solid tumors, using a DNA sequence encoding HSV-Tk or VZV-Tk |
| WO1996030385A1 (en) | 1995-03-31 | 1996-10-03 | Case Western Reserve University | Viral vectors and their use for treating hyperproliferative disorders, in particular restenosis |
| WO1997016459A1 (fr) | 1995-10-31 | 1997-05-09 | Rhone-Poulenc Rorer S.A. | Application de la proteine gax au traitement de cancers |
| US20060062764A1 (en) * | 2004-08-25 | 2006-03-23 | Seshidar-Reddy Police | Fiber-modified adenoviral vectors for enhanced transduction of tumor cells |
| KR20120036688A (ko) * | 2010-10-08 | 2012-04-18 | 연세대학교 산학협력단 | 재조합된 유전자발현 조절서열을 가지는 종양 특이적 발현이 개선된 유전자 전달체 |
| KR20120099317A (ko) * | 2011-01-26 | 2012-09-10 | 연세대학교 산학협력단 | 암세포 특이적 유전자 발현을 위한 재조합 유전자발현 조절서열 |
Non-Patent Citations (20)
| Title |
|---|
| BATT, D. BG. G. CARMICHAEL, MOL. CELL. BIOL., vol. 15, 1995, pages 4783 - 4790 |
| BUNNPOYTON, PHYSIOL. REV., vol. 76, 1996, pages 839 - 885 |
| CHENG ET AL., PROC. NAT .ACAD. SCI., vol. 95, 1998, pages 3042 - 3047 |
| CHENG ET AL., PROC. NAT. ACAD. SCI, vol. 95, 1998, pages 3042 - 3047 |
| COLE, C. N.T. P. STACY, MOL. CELL. BIOL., vol. 5, 1985, pages 2104 - 2113 |
| DACHSSTRATFORD BR., J. CANCER, vol. 74, 1996, pages 5126 - 5132 |
| GHOSH-CHOUDHURY ET AL., EMBO J., vol. 6, 1987, pages 1733 - 1739 |
| GIL, A. ET AL., CELL, vol. 49, 1987, pages 399 - 406 |
| GIMMI, E. R. ET AL., NUCLEIC ACIDS RES., vol. 17, 1989, pages 6983 - 6998 |
| GUILLEMINKRASNOW, CELL, vol. 89, 1997, pages 9 - 12 |
| JANG, Y: "Effect of function-enhanced mesenchymal stem cells infected with decorin-expressing adenovirus on hepatic fibrosis", STEM CELLS TRANSLATIONAL MEDICINE, vol. 5, no. 9, 30 June 2016 (2016-06-30) - September 2016 (2016-09-01), pages 1247 - 1256, XP055617934 * |
| KIM, E.-K.: "Enhanced antitumor immunotherapeutic effect of B- cell -based vaccine transduced with modified adenoviral vector containing type 35 fiber structures", GENE THERAPY, vol. 21, 2014, pages 106 - 114, XP055338853, doi:10.1038/gt.2013.65 * |
| KLASENS, B. I. F. ET AL., NUCLEIC ACIDS RES., vol. 26, 1998, pages 1870 - 1876 |
| LEE ET AL., NATURE, vol. 329, 1987, pages 642 |
| PNAS, vol. 95, 1998, pages 8795 - 800 |
| RIORDAN, J. R. ET AL., SCIENCE, vol. 245, 1989, pages 1066 - 1073 |
| SCHEK, N ET AL., MOL. CELL BIOL., vol. 12, 1992, pages 5386 - 5393 |
| See also references of EP3725875A4 |
| SUZUKI, T: "Mesenchymal stem cells are efficiently transduced with adenoviruses bearing type 35-derived fibers and the transduced cells with the IL -28A gene produces cytotoxicity to lung carcinoma cells co-cultured", BMC CANCER, vol. 14, no. 713, 2014, pages 1 - 10, XP021196923 * |
| THIMMAPPAYA, B. ET AL., CELL, vol. 31, 1982, pages 543 - 551 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023537103A (ja) * | 2020-08-10 | 2023-08-30 | メゾブラスト・インターナショナル・エスアーエールエル | 細胞組成物及び治療方法 |
| JP7807434B2 (ja) | 2020-08-10 | 2026-01-27 | メゾブラスト・インターナショナル・エスアーエールエル | 細胞組成物及び治療方法 |
| CN116036313A (zh) * | 2023-02-02 | 2023-05-02 | 中国医学科学院血液病医院(中国医学科学院血液学研究所) | 一种基于间充质干细胞的治疗肝癌的组合物 |
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| JP2021506267A (ja) | 2021-02-22 |
| JP7558808B2 (ja) | 2024-10-01 |
| EP3725875A1 (en) | 2020-10-21 |
| US11850215B2 (en) | 2023-12-26 |
| SG11202005509YA (en) | 2020-07-29 |
| US20210069253A1 (en) | 2021-03-11 |
| KR20190070890A (ko) | 2019-06-21 |
| KR102167934B1 (ko) | 2020-10-20 |
| CN111630159A (zh) | 2020-09-04 |
| EP3725875A4 (en) | 2021-10-06 |
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