WO2020197319A1 - 면역세포의 제조방법 및 그의 용도 - Google Patents
면역세포의 제조방법 및 그의 용도 Download PDFInfo
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- WO2020197319A1 WO2020197319A1 PCT/KR2020/004198 KR2020004198W WO2020197319A1 WO 2020197319 A1 WO2020197319 A1 WO 2020197319A1 KR 2020004198 W KR2020004198 W KR 2020004198W WO 2020197319 A1 WO2020197319 A1 WO 2020197319A1
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Definitions
- the present invention directly reprograms isolated human somatic cells to produce iNKT cells into which CAR genes encoding induced Natural Killer T cells (iNKT) and chimeric antigen receptors (CARs) are introduced It relates to a method, iNKT cells prepared by the above method, a cell therapy composition comprising the iNKT cells, and a pharmaceutical composition for preventing or treating cancer.
- iNKT induced Natural Killer T cells
- CARs chimeric antigen receptors
- Natural Killer T (NKT) cells present in various tissues and organs such as bone marrow, lymph glands, liver, spleen, blood, etc. have the characteristics of T lymphocytes and Natural Killer (NK) cells.
- T lymphocytes As a type of T cell, it is known to express both T-cell receptor and surface antigen of T cells such as NK1.1 or NK cells.
- Typical T cells recognize antigens presented by Major Histocompatibility Complex (MHC) Class I/MHC Class II, but NKT cells are glycolipids presented by CD1d (MHC-like Molecule) ( ⁇ -GalCer; alpha- Galactosylceramide). Therefore, NKT, which has cytotoxicity such as T cells and NK cells, does not induce Graft-versus-host Disease (GVHD), although it is a type of T cell, so it is not only self-derived but also allogeneic-derived cell therapy. It is recognized as a useful cell resource for development.
- MHC Major Histocompatibility Complex
- ⁇ -GalCer alpha- Galactosylceramide
- Activated NKT cells are IFN (Interferon), IL (Interleukin)-4, GM-CSF (Granulocyte-macrophage Colony-stimulating Factor), IL-2, IL-13, IL-17, IL-21, TNF (Tumor Necrosis).
- IFN Interferon
- IL Interleukin
- GM-CSF Granulocyte-macrophage Colony-stimulating Factor
- IL-2 IL-13
- IL-17 IL-21
- TNF Tumor Necrosis
- TNF Tumor Necrosis
- Factor secreting various types of cytokines and chemokines to regulate the immune function of NKT cells and various immune cells (NK cells, T cells, B cells, macrophages, etc.) It is known to perform an intermediary function of acquired immunity.
- NKT cells present in the human body can be obtained through a primary culture method that is produced by simple separation and amplification, but fundamentally, NKT cells are very small (about 0.1-0.01% in leukocytes of peripheral blood). ) It is known to exist in a limited manner, and problems such as heterogeneity of cell types between batches according to cell sources, complexity and variability of the production process, etc. have been pointed out. As an alternative, efforts are being made to secure stem cells with differentiation ability into NKT cells, but low production efficiency, relatively large amount of time and cost, and complexity of the production process are pointed out as problems to be overcome. . Therefore, in order to promote the use of NKT cells with excellent potential as an immune cell therapy agent, it is first necessary to secure new NKT cell resources or develop a production method.
- CAR cancer cell targeting chimeric antigen receptor
- NKT cells with engineered expression of chimeric antigen receptor (CAR) unlike T cells that exhibit anticancer enhancing effects dependent on CAR-specific mechanisms of action, induce maturation of dendritic cells, NK and By inducing CD8 + T cell activation cytokine secretion, high anticancer effects can be exhibited directly or indirectly.
- CAR-NKT chimeric antigen receptor
- NKT and CAR-NKT cells can be produced from human somatic cells, and it was confirmed that the produced NKT cells exhibit excellent cancer cell killing ability and thus can be applied to cancer prevention or treatment, and the present invention was completed.
- It is an object of the present invention to I) reprogramming factor (Reprogramming Factor) or II) reprogramming factor (Reprogramming Factor) and CAR (Chimeric Antigen Receptor) genes are introduced isolated cells a) growth factor, cytokine and GSK3 ⁇ (Glycogen) Synthase Kinase 3 beta) a first medium containing an inhibitor (Inhibitor); And b) (1) growth factor, cytokine and AHR (Aryl Hydrocarbon Receptor) agonist (Agonist), or (2) growth factor, cytokine, and a second medium containing anti-CD3 antibody; sequentially cultured in NKT It is to provide a method for producing iNKT (induced Natural Killer T) cells, comprising the step of reprogramming directly into cells.
- iNKT induced Natural Killer T
- Another object of the present invention is to provide iNKT cells prepared according to the above method.
- Another object of the present invention is to provide a cell therapy composition for preventing or treating cancer, comprising as an active ingredient iNKT cells prepared according to the above method.
- Another object of the present invention is to provide a pharmaceutical composition for preventing or treating cancer, comprising as an active ingredient iNKT cells prepared according to the above method.
- Another object of the present invention is a) a first container containing a first medium containing a growth factor, a cytokine and a GSK3 ⁇ inhibitor; And b) (1) a growth factor, a cytokine and an AHR agonist, or (2) a growth factor, a cytokine, and a second container containing a second medium containing an anti-CD3 antibody; direct li for iNKT cell production comprising It is to provide a programming badge kit.
- the method according to the present invention simplifies the production process and shortens the production time by producing iNKT cells or iNKT cells into which the CAR gene has been introduced from cells isolated through direct reprogramming, thereby reducing cost, and excellent NKT cell production efficiency. And, as it is produced without passing through the induced pluripotent stem cells, safety is secured, and there is an excellent NKT cell production effect that is differentiated from the conventional reprogramming technology.
- iNKT cells prepared by the above method or iNKT cells into which the CAR gene has been introduced have excellent cancer cell killing ability, and thus can be usefully used as a cell therapy composition or pharmaceutical composition for preventing or treating cancer.
- FIG. 1 is a schematic diagram of a method for preparing iNKT by (A) direct reprogramming of somatic cells, (B) results of confirming iNKT cells prepared from PBMC cells.
- FIG. 8 is a diagram showing the constituent domains of four types of CAR genes.
- FIG. 9 is a schematic diagram of a method for producing CAR-iNKT by direct somatic cell reprogramming and CAR gene introduction.
- the present invention provides an isolated cell into which I) a reprogramming factor or II) a reprogramming factor and a CAR (Chimeric Antigen Receptor) gene are introduced.
- iNKT induced Natural Killer T
- NKT Natural killer T cells
- TCR T Cell Receptor
- type I NKT cells are also called constant NKT cells, which use an invariant TCR chain with a limited TCR ⁇ -chain repertoire
- type II NKT cells have various TCRs. It expresses a wide range of chain combinations.
- NKT cells are known to be able to immediately attack and remove target cells such as infected cells or tumor cells, and are recognized as major target cells in the development of immune cell therapy products along with T and NK cells.
- NKT cells have anti-cancer effects that directly or indirectly kill various cancer cells, they are useful resources for overcoming the limitations of existing anti-cancer therapies such as therapeutics targeting cancer diseases and inhibitors of recurrence.
- a technology for producing NKT cells through simple separation and amplification from peripheral blood or differentiation-inducing culture from stem cells is being developed, but problems such as low productivity and time and cost are still emerging, and new NKT cells There is a high need for resource development.
- NKT cells or CAR-NKT cells
- CARs chimeric antigen receptors
- the present inventors attempted to prepare NKT cells under in vitro culture conditions, and as a result, for the first time, a method of directly inducing and producing NKT cells through direct reprogramming was identified.
- iNKT induced natural killer T cells
- NKT Natural killer T
- CAR-iNKT induced natural killer T cells
- NKT Natural killer T
- the term "reprogramming" refers to a method of converting a lineage into a target cell having completely different characteristics by controlling a global gene expression pattern of a specific cell.
- Reprogramming may include, but is not limited to, dedifferentiation of cells, direct reprogramming or direct conversion, or trans-differentiation.
- the reprogramming may be performed by introducing a vector containing a foreign gene or DNA into a cell.
- the “conversion” means that the cell is changed to a different state
- the “differentiation” means a phenomenon in which daughter cells made by dividing the cell acquire a function different from the original parent cell, and in the present invention, the “conversion” and “Differentiation” can be used interchangeably with “induction”.
- the term "direct reprogramming” refers to a method of inducing direct conversion to a desired cell by culturing a specific cell in a reprogramming medium.
- NKT cells which are target cells using conventional reprogramming techniques
- 3) NKT cells, which are target cells had to be differentiated and produced from differentiated stem (progenitor) cells.
- the conventional technology has a disadvantage in that production efficiency is low and time and cost are large because it has to go through a complicated culture process sequentially.
- the present invention is differentiated from the prior art by directly producing NKT cells, which are target cells, from somatic cells isolated through direct reprogramming, so that production time is short, cost is reduced, efficiency is excellent, and safety is ensured, It can provide an alternative to overcome this problem.
- the direct reprogramming may be used interchangeably with direct dedifferentiation, direct differentiation, direct conversion, direct cross-differentiation, and cross-differentiation, and in the present invention, the direct reprogramming is direct dedifferentiation or crossing from isolated somatic cells to NKT cells. It may mean differentiation, but is not limited thereto.
- the term "differentiated cell” refers to a cell whose structure or function is specialized, ie, a cell, a tissue, etc. of an organism that has been changed into a form and function suitable for performing a role given to each.
- ectoderm, mesoderm, and endoderm cells derived from pluripotent stem cells such as embryonic stem cells are differentiated cells, and narrowly, red blood cells, white blood cells, platelets, etc. derived from hematopoietic stem cells may be differentiated cells. .
- the term "lineage-transformed cell” refers to a cell that has been converted into a cell type having other lineage characteristics by changing the inherent phylogenetic characteristics of the cell through embryological or artificial methods (eg, reprogramming, etc.) As, it has the characteristics of a cell type completely different from that of the cell type before conversion.
- the cell in which the lineage is converted may be a target cell.
- non-NKT lymphocyte cells in peripheral blood mononuclear cells may be converted to NKT cells in a reprogramming medium, but is not limited thereto.
- the method comprises I) a reprogramming factor or II) a reprogramming factor and the isolated cells into which the CAR (Chimeric Antigen Receptor) genes are introduced into the first medium of a); And b) of (1) a second medium containing an AHR (Aryl Hydrocarbon Receptor) agonist (Agonist), or (2) a second medium containing an anti-CD3 antibody; sequentially cultured in and reprogrammed directly into NKT cells It may be to let you do.
- AHR Aryl Hydrocarbon Receptor
- isolated cell of the present invention is not particularly limited, but specifically, may be a cell whose lineage has already been specified, such as a reproductive cell, a somatic cell, or a progenitor cell.
- the "somatic cell” refers to all cells that have completed differentiation that constitutes animals and plants excluding germ cells, and the "progenitor cell” expresses a differentiation trait when it is found that the cell corresponding to the progeny expresses a specific differentiation trait. It does not, but refers to a parent cell that has its differentiation fate. For example, for neurons (neurons), neuroblasts (neuron stem cells) correspond to progenitor cells, and for myotube cells, myoblasts correspond to progenitor cells.
- the isolated cells may be cells derived from humans, but are not limited thereto, and cells derived from various individuals may also fall within the scope of the present invention.
- the isolated cells of the present invention may include both in vivo or ex vivo cells.
- the isolated cells may be somatic cells, and more specifically, somatic cells excluding NKT cells, but are not limited thereto.
- reprogramming factor refers to a gene (or polynucleotide) that can be introduced into a cell to induce reprogramming, or a protein encoded therefrom.
- the reprogramming factor may vary depending on the target cell to be obtained through reprogramming and the type of cell before reprogramming.
- the reprogramming factors introduced into the isolated somatic cells are Lin28, Asc11, Pitx3, Nurr1, Lmx1a, Nanog, Oct4, Oct3, Sox2, Klf4, Myc, and these It may include any one or more selected from the group consisting of a combination of, and specifically, Oct4, Sox2, Klf4, and Myc, but is not limited thereto, and a reprogramming factor capable of inducing the isolated somatic cells to NKT cells All factors known in the art may be included.
- Reprogramming using the reprogramming factor controls the entire gene expression pattern of the cell to induce conversion to the target cell.By introducing the reprogramming factor into the cell and culturing the cell for a certain period of time, Cells can be reprogrammed with target cells having a gene expression pattern.
- the term "introduction of a reprogramming factor” refers to a method of administering a reprogramming factor to a culture medium of a cell; A method of directly injecting reprogramming factors into cells; A method of increasing the expression level of a reprogramming factor present in a cell; A method of transforming a cell with an expression vector containing a gene encoding a reprogramming factor; A method of modifying a gene sequence such that expression of a gene encoding a reprogramming factor is increased; A method of introducing a foreign-expressed gene encoding a reprogramming factor, a method of treating a substance having an effect of inducing expression of a reprogramming factor; And a method of increasing the expression level of the reprogramming factor in cells through a combination thereof, but is not limited thereto as long as the expression level of the reprogramming factor can be increased.
- the introduction of the reprogramming factor may be to induce the expression of the reprogramming factor under a desired time and condition.
- the method of introducing the reprogramming factor into a cell may be a method of administering a reprogramming factor to a culture medium of a cell, or a method of transforming an expression vector containing a gene encoding a reprogramming factor into a cell. Not limited.
- the method of directly injecting the reprogramming factor into cells may be used by selecting any method known in the art, but is not limited thereto, but is not limited to, but is not limited to, microinjection, electroporation, and particle injection ( Particle bombardment), Direct Muscle Injection, Insulator, and Transposon can be appropriately selected and applied.
- the term "vector” refers to a DNA preparation containing a suitable control sequence and a base sequence of the protein or polypeptide of interest so that the protein or polypeptide of interest can be expressed in a suitable host.
- the regulatory sequence may include a promoter, an operator, a start codon, a stop codon, a polyadenylation signal, and an enhancer.
- the vector of the present invention includes a signal sequence or leader sequence for membrane targeting or secretion, and can be variously prepared according to the purpose.
- the promoter of the vector can be constitutive or inducible.
- the vector includes a selectable marker for selecting a host cell containing the vector, and in the case of a replicable vector, the origin of replication. The vector can be transformed into a suitable host cell, then replicated or function independently of the host genome, and can be integrated into the genome itself.
- the vector used in the present invention is not particularly limited as long as it can replicate in host cells, and any vector known in the art may be used.
- Examples of commonly used vectors include viral vectors, episomal vectors, plasmid vectors, and cosmid vectors in a natural or recombinant state.
- the viral vectors include Sendai Virus, Lentivirus, Human Immunodeficiency Virus (HIV), Murineleukemia Virus (MLV), Avian Sarcoma/Leukosis (ASLV), Spleen Necrosis Virus (SNV), and RSV ( Rous Sarcoma Virus), MMTV (Mouse Mammary Tumor Virus), etc., Retrovirus, Adenovirus, Adeno-associated Virus, Herpes Simplex Virus, etc. It may include, and more specifically, may be an RNA-based viral vector, but is not limited thereto.
- the episomal vector is a non-viral, non-insertable vector, and is known to have a characteristic capable of expressing a gene included in the vector without being inserted into a chromosome. Accordingly, the cell containing the episomal vector may include all cases in which the episomal vector is inserted into the genome or is present in the cell without being inserted into the genome.
- operably linked refers to a functional linkage between a nucleic acid expression control sequence and a nucleic acid sequence encoding a protein of interest to perform a general function.
- the operative linkage with a recombinant vector can be prepared using gene recombination techniques well known in the art, and site-specific DNA cleavage and linkage use enzymes generally known in the art.
- the term "culture” means growing cells under controlled environmental conditions, and the culturing process of the present invention may be performed according to a medium and culture conditions known in the art. This culture process can be easily adjusted and used by a person skilled in the art depending on the selected cells.
- the composition of the first medium or the second medium for culturing the cells into which the reprogramming factors have been introduced is Compositions suitable for conversion into cells, for example, growth factors, cytokines, GSK3 ⁇ inhibitors, AHR agonists or anti-CD3 antibodies, and the like may be included, but are not limited thereto.
- the first medium of a) may be one containing a growth factor, a cytokine, and a GSK3 ⁇ inhibitor.
- the term "growth factor” refers to a polypeptide that promotes division, growth and differentiation of several cells.
- the growth factors are, for example, EGF (Epidermal Growth Factor), PDGF-AA (Platelet-derived Growth Factor-AA), IGF-1 (Insulin-like Growth Factor 1), TGF- ⁇ (Transforming Growth Factor- ⁇ ) , FGF (Fibroblast Growth Factors), SCF (Stem Cell Factor), and FLT3 (FMS-like Tyrosine Kinase), and the like, and specifically, it may be any one or more selected from the group consisting of SCF, FLT3, and combinations thereof. Not limited.
- cytokine is a relatively small sized variety of proteins produced in cells and used for cell signal transduction, and may affect other cells, including itself. It is generally known to be associated with an immune response to inflammation or infection.
- the cytokine is, for example, IL (Interleukin)-2, IL-3, IL-5, IL-6, IL-7, IL-11, IL-15, BMP4 (Bone Morphogenetic Protein 4), activin A (Acivin A), Notch Ligand, G-CSF (Granulocyte-colony Stimulating Factor), SDF-1 (Stromal Cell-derived Factor-1), etc., specifically IL-3, IL-6, IL -2, IL-7, IL-15, and may be any one or more selected from the group consisting of a combination thereof, but is not limited thereto.
- the growth factors and cytokines are included in a medium for direct reprogramming of isolated cells to target cells, and the types of growth factors and cytokines are not particularly limited as long as they can be directly used for reprogramming. .
- GSK3 ⁇ (Glycogen Synthase Kinase 3 beta, Glycogen Synthase Kinase-3 ⁇ ) inhibitor (Inhibitor) refers to a substance that inhibits or inhibits the activity of glycogen synthase kinase 3 beta.
- the GSK3 ⁇ inhibitor is, for example, 1-Azakenpaullone, 2-D08, 3F8, 5-Bromoindole, 6-Bio, A 1070722, Aloisine A, AR-A014418, Alsterpaullone, AZD-1080, AZD2858, Bikinin, BIO, BIO- acetoxime, Bisindolylmaleimide I, Bisindolylmaleimide I Hydrochloride, CAS 556813-39-9, Cazpaullone, CHIR98014, CHIR98023, CHIR99021(CT99021), CP21R7, Dibromocantherelline, GSK-3 ⁇ Inhibitor I, VI, VII, X, XI,XV, GSK-3 Inhibitor IX, XVI, Hymenidin, Hymenialdisine, HMK-32, I3M (Indirubin-3-monoxime, Indirubin, Indole-3-acetamide, IM-12, Kenpaull
- the first medium of a) may include SCF, FLT3, IL-3, IL-6, and CHIR99021, but is not limited thereto.
- the first medium of a) may further contain one or more selected from the group consisting of Fetal Bovine Serum (FBS), antibiotics, and combinations thereof, but is not limited thereto.
- FBS Fetal Bovine Serum
- the antibiotic may be penicillin/streptomycin, but is not limited thereto.
- the first medium of a) may be one containing FBS, penicillin/streptomycin, SCF, FLT3, IL-3, IL-6 and CHIR99021, but is not limited thereto.
- the first medium of a) is 8 to 12% of FBS, 0.1 to 2% of penicillin/streptomycin, 50 to 200 ng/ml of human SCF, 50 to 200 ng/ml of human FLT3, 10 To 30 ng/ml human IL-3, 10 to 30 ng/ml human IL-6, 2 to 8 uM of CHIR99021 may be StemSpan SFEM II, more specifically 10% FBS, 1% StemSpan containing penicillin/streptomycin, 100 ng/ml of human SCF, 100 ng/ml of human FLT3, 20 ng/ml of human IL-3, 20 ng/ml of human IL-6, 5 uM of CHIR99021 It may be SFEM II, but is not limited thereto.
- the second medium of b) may contain (1) a growth factor, a cytokine, and an AHR (Aryl Hydrocarbon Receptor) agonist, or (2) a growth factor, a cytokine, and an anti-CD3 antibody.
- AHR Aryl Hydrocarbon Receptor
- growth factor and "cytokine” are as described above.
- AHR Aryl Hydrocarbon Receptor
- TCDD Dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin)
- TCDD Dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin)
- the AHR agonist is, for example, TCDD (2,8-dihydroxyquinoline, 2,3,7,8-tetrachlorodibenzo-p-dioxin), FICZ (6-Formylindolo[3,2-b]carbazole), biocanin A And the like, and specifically, it may be any one or more selected from the group consisting of FICZ, biokanin A, and combinations thereof, but is not limited thereto.
- anti-CD3 antibody is a protein that specifically reacts to CD3 antigen, a group of molecules that bind to T Cell Receptor (TCR) to form an antigen recognition complex, and CD3 molecules are compared with TCR. Therefore, it has a long intracellular region and is known to transmit antigen recognition signals into cells.
- the anti-CD3 antibody may be, for example, OKT-3, UCHT1, HIT3a, and the like, and specifically, may be any one or more selected from the group consisting of OKT3, UCHT1, and combinations thereof, but is not limited thereto.
- the second medium of b) (1) in the case of a second medium containing an AHR agonist may contain SCF, FLT3, IL-2, IL-7, IL-15, FICZ and biokanin A, Or (2) in the case of a second medium containing an anti-CD3 antibody, it may include, but is not limited to, SCF, FLT3, IL-2, IL-7, IL-15, OKT3, and UCHT1.
- the second medium of b) may further contain at least one selected from the group consisting of FBS, antibiotics, and combinations thereof, but is not limited thereto.
- the antibiotic may be penicillin/streptomycin, but is not limited thereto.
- the second medium of b) is (1) a second medium containing an AHR agonist, FBS, penicillin/streptomycin, SCF, FLT3, IL-2, IL-7, IL-15, FICZ and Biokanin A may be included, or (2) in the case of a second medium containing an anti-CD3 antibody, FBS, penicillin / streptomycin, SCF, FLT3, IL-2, IL-7, IL-15, It may include OKT3 and UCHT1, but is not limited thereto.
- the second medium containing an AHR agonist is 8 to 12% of FBS, 0.1 to 2% of penicillin/streptomycin, and 10 to 30 ng/ml of human SCF, 10 to 30 ng/ml of human FLT3, 100 to 500 IU/ml of human IL-2, 10 to 30 ng/ml of human IL-7, 10 to 30 ng/ml of human IL-15, 1 to It may be StemSpan SFEM II containing 3 uM of FICZ and 10 to 30 ⁇ g/ml of biocanin A, and more specifically, 10% of FBS, 1% of penicillin/streptomycin, 20 ng/ml of human SCF , 20 ng/ml of human FLT3, 200 IU/ml of human IL-2, 20 ng/ml of human IL-7, 20 ng/ml of human IL-15, 2 uM of FICZ and a ratio of 20 ⁇ g/ml Stem
- the second medium containing the anti-CD3 antibody is 8 to 12% FBS, 0.1 to 2% penicillin/streptomycin, 10 to 30 ng/ml human SCF, 10-30 ng/ml human FLT3, 100-500 IU/ml human IL-2, 10-30 ng/ml human IL-7, 10-30 ng/ml human IL-15, 5-15 ng
- It may be StemSpan SFEM II comprising /ml OKT3 and 5-15 ng/ml UCHT1, more specifically 10% FBS, 1% penicillin/streptomycin, 20 ng/ml human SCF, 20 ng /ml of human FLT3, 200 IU/ml of human IL-2, 20 ng/ml of human IL-7, 20 ng/ml of human IL-15, 10 ng/ml of OKT3 and 10 ng/ml of UCHT1.
- StemSpan SFEM II may be included, but is not limited thereto.
- the isolated cells into which the reprogramming factor has been introduced may be cultured in the first medium of a) for 4 to 8 days, and then cultured in the second medium of b) for 12 days or longer. Not limited.
- a Sendai virus expressing a reprogramming factor is used to transform a reprogramming factor into a CD3+CD8- cell group, a T cell subtype constituting peripheral blood mononuclear cells or peripheral blood mononuclear cells.
- iNKT second medium containing AHR (Aryl Hydrocarbon Receptor) agonist (Agonist) or iNKT second containing anti-CD3 antibody As a result of induction into NKT cells by culturing in a medium for 12 to 35 days, it was confirmed that 62% of peripheral blood mononuclear cells and 94.1% of the CD3+CD8-cell group were induced into iNKT cells (Fig. 1B, Fig. 2).
- the production efficiency of iNKT cells is 3.7 to 4.7 times or more superior to the case where the AHR agonist is contained in the second iNKT medium or the case where the anti-CD3 antibody is not contained (Fig. 4). This confirmed that the AHR agonist or anti-CD3 antibody plays an important role in the method for preparing NKT through direct reprogramming.
- CAR gene includes a gene encoding an extracellular domain, a transmembrane domain, and an intracellular domain including an antibody domain (scFv), and refers to the extracellular domain, transmembrane domain, and intracellular domain. It means a gene encoding a chimeric antigen receptor (Chimeric Antigen Receptor).
- the CAR gene of the present invention is a CD19-CAR1 gene or CD19-CAR2 gene including CD19 scFv, MSLN-CAR gene including MSLN (mesothelin) scFv, and human epidermal growth factor receptor 2 (HER2) scFv It may be any one or more selected from the group consisting of the HER2-CAR gene including, but is not limited thereto.
- CAR targeting factors for solid tumors include EGFRvIII (Morgan RA, Hum Gene Ther. 2012; 23:1043-1053), MUC-1 (Wilkie S, J Immunol. 2008; 180:4901-4909), MAGE (Willemsen).
- RA Gene Ther. 2001;8:1601-1608
- CEA Emtage PC, Clin Cancer Res. 2008; 14:8112-8122
- PSMA PSMA, GD2, CA125, Her2 and MSLN, FAP, VEGFR (Kakarla S, Cancer J. 2014;20:151-155), etc. are known to be available.
- CD19 is a cluster of differentiation (CD), which is assigned the number 19 to identify cell surface molecules according to immunophenotypes, and CD19 refers to a marker of B lymphocytes. It is known that CD19 is expressed in most B-cell malignant tumor cancer cells and provides an ideal target for these carcinomas.
- the CAR gene includes i) a CD8 leader, CD19 scFv, CD8 hinge, a CD8 transmembrane domain, and a CAR gene (CD19-CAR1 gene) including an Fc- ⁇ (Gamma) receptor; ii) CAR gene (CD19-CAR2 gene) including CD8 leader, CD19 scFv, CD8 hinge, CD8 transmembrane domain, CD28 intracellular domain, CD3 ⁇ and Internal Ribosome Entry Site (IRS); iii) CAR gene (MSLN-CAR gene) including CD8 leader, MSLN (Mesothelin) scFv, CD8 hinge, CD8 transmembrane domain, CD28 intracellular domain, CD3 ⁇ and IRES; And iV) CD8 leader, HER2 (Human Epidermal Growth Factor Receptor 2) scFv, CD8 hinge, CD8 transmembrane domain, CD28 intracellular domain, CD3 ⁇ and CAR gene
- the CD8 leader is SEQ ID NO: 1, CD19 scFv is SEQ ID NO: 2, MSLN scFv is SEQ ID NO: 3, HER2 scFv is SEQ ID NO: 4, CD8 hinge is SEQ ID NO: 5, CD8 transmembrane domain is SEQ ID NO: 6, Fc- ⁇ receptor SEQ ID NO: 7, CD28 intracellular domain is SEQ ID NO: 8, CD3 ⁇ is SEQ ID NO: 9, the IRES inserted to clone the CAR gene into the vector constituting the double cistron may include the nucleotide sequence of SEQ ID NO: 10. , Is not limited thereto.
- the CAR gene may additionally include a GFP (Green Fluorescent Protein), but is not limited thereto.
- GFP Green Fluorescent Protein
- the GFP may include the nucleotide sequence of SEQ ID NO: 11, but is not limited thereto.
- the nucleotide sequence of SEQ ID NO: 1 to SEQ ID NO: 11 can be identified in NCBI Genbank, a known database.
- the nucleotide sequence of SEQ ID NO: 1 to SEQ ID NO: 11 is at least 70%, 80%, 85%, 90%, 95%, 96%, 97%, 98% with SEQ ID NO: 1 to SEQ ID NO: 11 , Or it may include a base sequence having 99% or more homology (Homology) or identity (Identity).
- a nucleotide sequence that has such homology or identity and exhibits a function corresponding to the nucleotide sequence of SEQ ID NO: 1 to SEQ ID NO: 11 a sequence having a nucleotide sequence in which some sequences are deleted, modified, substituted, or added is also a It is obvious to be included within the scope.
- homology and Identity of the present invention mean the degree to which two given amino acid sequences or base sequences are related and may be expressed as a percentage.
- homology and identity can often be used interchangeably.
- sequence homology or identity of a conserved polynucleotide or polypeptide is determined by standard alignment algorithms, and the default gap penalty established by the program used can be used together.
- Substantially, homologous or Identical sequences are generally at least about 50%, 60%, 70%, 80% of the sequence total or full-length in medium or high stringent conditions. Or it can hybridize to 90% or more. Hybridization is also contemplated for polynucleotides containing degenerate codons instead of codons in the polynucleotide.
- homology or identity to the polypeptide or polynucleotide sequence can be determined, for example, by the algorithm BLAST by literature [see Karlin and Altschul, Pro. Natl. Acad. Sci. USA, 90, 5873 (1993)], or FASTA by Pearson (Methods Enzymol., 183, 63, 1990). Based on this algorithm BLAST, a program called BLASTN or BLASTX has been developed (see: http://www.ncbi.nlm.nih.gov).
- the CAR gene may be introduced into the cell in the same manner as the above-described method of introducing the reprogramming factor, and in particular, the reprogramming factor and the CAR gene may be introduced simultaneously or sequentially under a desired time and condition. .
- the CAR gene may be introduced into the isolated cells at any one point selected from the time of the introduction of the reprogramming factor, the culture in the first medium of a) or the culture in the second medium of b). , Is not limited thereto.
- the lentivirus expressing CAR is cultivated in the first medium of iNKT first medium (a) after introduction of the reprogramming factor at the same time (Day 0) or
- PBMCs in the process of converting to iNKT cells or cells in the process of inducing lipograms may be transformed.
- the method according to the present invention is significant in that it is possible to produce NKT cells expressing CAR by introducing a CAR gene into an isolated cell other than an NKT cell with a reprogramming factor.
- the timing of introducing the CAR gene can be determined as desired by a person skilled in the art during the reprogramming culture process.
- the CAR gene is NKT inducing the CAR gene by further culturing for 4 to 28 days after addition when the virus vector expressing it is added to any one or more of the first medium culturing step or the second medium culturing step. It may be transformed into cells, but is not limited thereto.
- Sendai virus containing a gene encoding a reprogramming factor is cultured with peripheral blood mononuclear cells for 1 day, and transformed.
- the cells were cultured in iNKT 1 medium for 5-6 days and then cultured in iNKT 2 medium containing anti-CD3 antibody or iNKT 2 medium containing AHR agonist for 12-35 days (FIG. 9).
- a lentivirus expressing the CD19-CAR1 gene, CD19-CAR2 gene, MSLN-CAR gene, or HER2-CAR gene is transformed into the reprogramming factor at the same time or after the introduction of the reprogramming factor to produce CAR-iNKT cells. (Fig. 9).
- CD19-CAR-iNKT cells at an efficiency of 20.3% (Fig. 10)
- MSLN-CAR-iNKT cells at an efficiency of 28.8% ( 11)
- HER2-CAR-iNKT cells were prepared with an efficiency of 33.1% (FIG. 12).
- the iNKT cells prepared according to the method of the present invention may express any one or more selected from the group consisting of CD56+, CD3+, and combinations thereof, but are not limited thereto.
- CD56+ and CD3+ are indicators on the surface of NKT cells, and in the present invention, expression of CD56+, CD3+ and combinations thereof was analyzed through flow cytometry to confirm that NKT cells were prepared ( 1B, 2, 4, 10 to 12).
- iNKT cells prepared according to the method of the present invention may be excellent in killing ability against various cancer cells.
- the frequency (%) of CD107a + cells having cancer cell lysis ability in cancer cells co-cultured with iNKT cells is increased (FIG. 5), and hematologic cancer cell line, colon cancer cell line, prostate cancer cell line, liver cancer cell line ,
- iNKT cells against lung cancer cell lines and pancreatic cancer cell lines
- FIG. 6 the tumor size was significantly reduced on the 14th day after iNKT cell injection into the mouse model in which pancreatic cancer occurred compared to the control group not injected with iNKT cells.
- iNKT cells into which the CD19-CAR2 gene, MSLN-CAR gene, or HER2-CAR gene were introduced exhibit higher cancer cell killing ability than iNKT cells to which the CAR gene was not introduced ( 13-15).
- Another aspect of the present invention provides iNKT cells prepared according to the above method.
- the iNKT cells may be excellent in killing ability against various cancer cells.
- Another aspect of the present invention provides a cell therapy composition for preventing or treating cancer comprising iNKT cells prepared according to the above method as an active ingredient.
- prevention refers to any action that inhibits or delays the occurrence of cancer by administration of the composition.
- treatment refers to any action in which symptoms caused by cancer are improved or beneficially changed by the administration of the composition.
- cell therapy refers to a drug used for treatment, diagnosis, and prevention (US FDA regulations) with cells and tissues manufactured through isolation, culture, and special manipulation from an individual. It refers to a drug used for treatment, diagnosis, and prevention through a series of actions such as proliferating and screening live autologous, allogeneic, or heterogeneous cells in vitro to restore or altering the biological properties of cells by other methods.
- the cell therapy composition may have cancer prevention or treatment efficacy by including iNKT cells prepared according to the method of the present invention.
- the cell therapy composition may contain the iNKT cells at 1.0x10 4 to 1.0x10 10 cells/ml, preferably 1.0x10 5 to 1.0x10 9 cells/ml based on the total weight of the composition, but is not limited thereto. .
- the cell therapy composition may be formulated and administered in a unit dosage form suitable for administration in the body of a patient according to a conventional method in the field of pharmacy, and the formulation includes an effective dose by one or several administrations. do.
- Formulations suitable for this purpose include injections such as ampoules for injection, infusions such as infusion bags, and sprays such as aerosol formulations as parenteral formulations.
- the ampoule for injection may be mixed with an injection solution immediately before use, and physiological saline, glucose, mannitol, Ringer's solution, and the like may be used as the injection solution.
- the injection bag may be made of polyvinyl chloride or polyethylene, and Baxter, Becton Dickinson, Medcep, National Hospital Products, or Terumo The company's infusion bag can be illustrated.
- one or more pharmaceutically acceptable conventional inert carriers for example, preservatives, painless agents, solubilizers or stabilizers in the case of injections, and in the case of topical administration formulations It may further include a base, an excipient, a lubricant or a preservative.
- the cell therapy composition or pharmaceutical preparation thereof of the present invention thus prepared may be administered with other cells used for cancer treatment or in the form of a mixture with such cells using an administration method commonly used in the art.
- an administration method commonly used in the art.
- the administration may be non-surgical administration using a catheter and surgical administration methods such as injection or transplantation after incision in the diseased area.
- implantation by intravascular injection is also possible.
- the cell therapy composition may be administered in a dose of 0.0001 to 1000 mg/kg per day, specifically 0.001 to 100 mg/kg, and the administration may be administered once or several times a day.
- the actual dosage of the active ingredient should be determined in the light of various related factors such as the disease to be treated, the severity of the disease, the route of administration, the weight, age, and sex of the patient. It is not intended to limit the scope of the present invention to any aspect.
- Another aspect of the present invention provides a pharmaceutical composition for treating or preventing cancer, comprising as an active ingredient iNKT cells prepared according to the above method.
- the cancer may be a cancer showing a result of prevention or treatment by an immune response of iNKT cells.
- the cancer is, for example, fibrosarcoma, myxosarcoma, liposarcoma, chondrosarcoma, osteogenic sarcoma, bone marrow cancer, myeloma, myelodysplasia, lymphoma, non-Hodgkin's lymphoma, hematologic cancer, melanoma, chordoma, angiosarcoma.
- Endothelial sarcoma lymphangiosarcoma, lymphangioendothelial sarcoma, synovial tumor, mesothelioma, Ewing sarcoma, gastric cancer, leiomyosarcoma, rhabdomyosarcoma, colon carcinoma, colon cancer, colon cancer, rectal cancer, pancreatic biliary cancer, pancreatic cancer, biliary tract cancer, gallbladder cancer, liver cancer Breast cancer, ovarian cancer, uterine cancer, prostate cancer, lymphoma, proleukemia, leukemia, acute leukemia, B-cell acute lymphocytic leukemia (BALL), T-cell acute lymphocytic leukemia (TALL), small lymphocytic leukemia (SLL), Acute lymphocytic leukemia (ALL); Chronic leukemia, chronic myelogenous leukemia (CML), chronic lymphocytic leukemia (CLL), squamous cell carcinoma,
- the cancer may be a cancer that shows the result of prevention or treatment by an immune response of CAR-iNKT cells, for example, a cancer associated with the expression of any one or more of CD19, MSLN or HER2, for example, myelodysplasia, Myelodysplastic syndrome.
- Proleukemia hematologic cancer, acute leukemia, B-cell acute lymphocytic leukemia (BALL), T-cell acute lymphocytic leukemia (TALL), small lymphocytic leukemia (SLL), acute lymphocytic leukemia (ALL); Chronic leukemia, chronic myelogenous leukemia (CML), chronic lymphocytic leukemia (CLL), non-Hodgkin's lymphoma, lymphoma, myeloma, pancreatic cancer, biliary tract cancer, lung cancer, ovarian cancer, breast cancer, uterine cancer, rectal cancer, colon cancer, colon cancer, bone marrow cancer , Liver cancer, brain cancer, prostate cancer, gastric cancer, glioma, melanoma, squamous cell carcinoma, head and neck cancer, renal cell carcinoma, glioblastoma, medulloblastoma, sarcoma, and any one or more selected from the group consisting of a combination
- the pharmaceutical composition may be effective in preventing or treating cancer by including iNKT cells prepared according to the method of the present invention.
- the pharmaceutical composition of the present invention may contain the iNKT cells at 1.0x10 4 to 1.0x10 10 cells/ml, preferably 1.0x10 5 to 1.0x10 9 cells/ml based on the total weight of the composition, but is not limited thereto. Does not.
- the pharmaceutical composition may further include a pharmaceutically acceptable carrier, excipient, or diluent commonly used in the preparation of pharmaceutical compositions, and the carrier may include a non-naturally occuring carrier.
- the carrier, excipient and diluent include lactose, dextrose, sucrose, sorbitol, mannitol, xylitol, erythritol, maltitol, starch, gum acacia, alginate, gelatin, calcium phosphate, calcium silicate, cellulose, methyl cellulose, microcrystalline Cellulose, polyvinyl pyrrolidone, water, methylhydroxybenzoate, propylhydroxybenzoate, talc, magnesium stearate, and mineral oils.
- the pharmaceutical compositions are each tablet, pill, powder, granule, capsule, suspension, solution, emulsion, syrup, sterilized aqueous solution, non-aqueous solvent, suspension, emulsion, freeze-dried, transdermal, respectively, according to a conventional method. It can be formulated and used in the form of absorbents, gels, lotions, ointments, creams, patches, cataplasmas, pastes, sprays, skin emulsions, skin suspensions, transdermal delivery patches, drug-containing bandages or suppositories.
- Solid preparations for oral administration include, but are not limited to, tablets, pills, powders, granules, capsules, and the like. These solid preparations may be prepared by mixing at least one or more excipients, such as starch, calcium carbonate, sucrose, lactose, gelatin, and the like. In addition, in addition to simple excipients, lubricants such as magnesium stearate and talc may be used.
- Formulations for parenteral administration include sterile aqueous solutions, non-aqueous solutions, suspensions, emulsions, lyophilized formulations, and suppositories.
- non-aqueous solvent and suspending agent propylene glycol, polyethylene glycol, vegetable oils such as olive oil, injectable esters such as ethyloleate, and the like can be used.
- a base for suppositories witepsol, macrogol, tween 61, cacao butter, laurin paper, glycerogelatin, and the like can be used.
- the pharmaceutical composition of the present invention may be administered in a pharmaceutically effective amount.
- pharmaceutically effective amount means an amount sufficient to treat a disease with a reasonable benefit/risk ratio applicable to medical treatment, and the effective dose level is the type and severity of the subject, age, sex, activity of the drug, Sensitivity to drugs, time of administration, route of administration and rate of excretion, duration of treatment, factors including drugs used concurrently, and other factors well known in the medical field.
- the pharmaceutical composition may be administered at a dose of 0.0001 to 1000 mg/kg per day, specifically 0.001 to 100 mg/kg, and the administration may be administered once or several times a day.
- the pharmaceutical composition may be administered as an individual therapeutic agent or administered in combination with other therapeutic agents, and may be administered sequentially or simultaneously with a conventional therapeutic agent. And can be administered single or multiple. It is important to administer an amount capable of obtaining the maximum effect in a minimum amount without side effects in consideration of all the above factors, and can be easily determined by a person skilled in the art.
- the "administration” means introducing the composition of the present invention to an individual by any suitable method, and the route of administration of the composition may be administered through any general route as long as it can reach the target tissue.
- the "individual” means all animals including humans, monkeys, cows, horses, sheep, pigs, chickens, turkeys, quails, cats, dogs, mice, mice, rabbits or guinea pigs who have or may develop cancer. . If the disease can be effectively prevented or treated by administering the pharmaceutical composition of the present invention to a subject, the type of subject may be included without limitation.
- Another aspect of the present invention provides a method for treating cancer, comprising administering the cell therapy composition or the pharmaceutical composition to an individual other than a human.
- Another aspect of the present invention is a) a first container containing a first medium containing a growth factor, a cytokine and a GSK3 ⁇ inhibitor; And b) (1) a growth factor, a cytokine and an AHR agonist, or (2) a growth factor, a cytokine, and a second container containing a second medium containing an anti-CD3 antibody; direct li for iNKT cell production comprising Provides a programming badge kit.
- the kit of the present invention means a tool that can be used as a direct reprogramming medium for producing iNKT cells, including a first container containing the first medium and a second container containing a second medium containing the first medium.
- the kind of the kit is not particularly limited, and a kit in a form commonly used in the art may be used.
- the kit of the present invention may be packaged in a form in which the first medium and the second medium are each contained in individual containers, or contained in one container divided into one or more compartments, and the first medium and the second medium Each may be packaged in a unit dosage form of a single dose.
- the first medium and the second medium in the kit may be sequentially administered at an appropriate time according to an experiment plan of a person skilled in the art.
- the kit of the present invention may further include an instruction manual describing the amount of each of the first medium and the second medium, the addition method, and the addition frequency.
- the present invention simplifies the production process by directly producing NKT cells from cells isolated through direct reprogramming, and the production time is at least 18-22 days, which is shorter than the method used to produce NKT cells using conventional reprogramming techniques.
- cost is reduced, and NKT cell production efficiency is excellent at up to 94.1% (33.1% when additional CAR gene is introduced), and safety is secured as it is produced without passing through induced pluripotent stem cells, differentiating from conventional reprogramming technology.
- NKT cells are cultured in a reprogramming medium by culturing cells that are different in lineage from NKT cells and are easy to collect. Since it can be manufactured directly, it is meaningful that it can provide a wide range of options for cell types and quality.
- iNKT cells prepared according to the method of the present invention have excellent cancer cell killing ability as described above, and can be provided as a cell therapy composition and pharmaceutical composition for the prevention or treatment of cancer including the same.
- Example 1 Direct reprogramming from PBMC to NKT cells
- PBMC peripheral blood mononuclear cells
- Sendai virus system expressing reprogramming factors to transform reprogramming factors (Oct4, Sox2, Klf4 and Myc) into the PBMC cells [Oct4, Sox2, Klf4 and Myc-expressing RNA-based Sendai virus (CytoTune 2.0 Sendai Reprogramming Kit, Thermo Scientific); OSKM-SeV] was used.
- the Sendai virus (5 MOI), PBMC cells, and polybrene (4 ⁇ g/ml) were cultured together for 1 day in a standard culture medium (SCM medium), and then fresh medium Replaced with.
- SCM medium standard culture medium
- iNKT 1 medium (10% FBS, 1% penicillin/streptomycin), 100 ng/ml human SCF, 100 ng/ml human FLT3.
- NKT cells were prepared through the direct reprogramming
- the cells were stained with CD56 antibody and CD3 antibody, and then NKT cells (CD56+ and CD3+) groups were analyzed using flow cytometry.
- a phosphate buffer containing 1% Bovine Serum Albumin (BSA) and 2 mM Ethylenediaminetetraacetic Acid (EDTA) to which NKT (iNKT) cells induced through direct reprogramming were added with antibodies against fluorescently attached CD56 and CD3
- FACS buffer After reaction at room temperature for 20 minutes with (FACS buffer), the cells were washed and recovered using a centrifuge, and then analyzed by FACS (BD Bioscience).
- CD56 + CD3 + NKT cells were produced with an efficiency of about 62% through direct reprogramming from PBMC (FIG. 1B).
- Example 2 Direct reprogramming from T cell subtypes to NKT cells
- PBMCs were separated into CD3+CD8-, CD3+CD8+, CD3-CD8-, and CD3-CD8+ cell groups using FACSAriaII (BD). Reprogramming was performed directly by the method. On the 24th day after direct reprogramming, FACS analysis was performed by the method of Example 1, and it was confirmed that CD56 + CD3 + NKT cells were produced with an efficiency of about 94.1% through direct reprogramming from CD3 + CD8- cells (Fig. 2).
- NKT cells were directly prepared from somatic cells isolated by direct reprogramming according to the introduction of reprogramming factors.
- NKT production efficiency was confirmed according to whether CHIR99021 (CT), SR1 (SR), and FICZ were added. Specifically, as shown in the table of FIG. 3, medium A to F in which CHIR99021 (CT) and SR1 (SR) were added or not in the iNKT first medium and second medium were prepared. For media C and F, the AHR agonist FICZ was added instead of SR1 (SR).
- PBMC cells were directly reprogrammed by the method of Example 1 using iNKT first medium and second medium prepared in different medium compositions, and the production efficiency of NKT cells was analyzed.
- CHIR99021 was added only to the iNKT first medium, and it was confirmed that the iNKT production efficiency was excellent at 40.5%, respectively, in the medium C to which FICZ was added to the iNKT second medium.
- the NKT production efficiency was confirmed when the AHR agonist FICZ or Biokanin A, and the anti-CD3 antibody OKT3 or UCHT1 were added. Specifically,
- cancer cells HCT116 Human Colon Cancer cells
- NIC-H460 Human Lung Cancer Cells
- HepG2 Human Liver Hepatocellular Carcinoma Cells
- Mia-paca-2 Human Pancreas Ductal Adenocarcinoma cells
- the frequency of CD107a+ cells was confirmed through flow cytometry. Specifically, the frequency of CD107a+ cells was determined by reacting iNKT cells with fluorescently attached CD56-PE, CD3-APC and CD107a-FITC antibody-added FACS buffer for 20 minutes at room temperature, and then gating the CD56+CD3+ cell group by FACS. ) And analyzed.
- the frequency (%) of CD107a+ cells was increased in iNKT cells co-cultured compared to the control group not co-cultured with cancer cells (FIG. 5).
- Example 5 Measurement of cancer cell killing ability of iNKT cells
- a cell killing ability measurement method using calcein-AM (Calcein-AM) was performed. Specifically, cancer cells Raji (Raji B, Human B Lymphocyte; Burkitt's Lymphoma), SNU-817 (Human B-lymphoblastoid Cells), K562 (Human Immortalized Myelogenous Leukemia Cells), HCT116, PC3 (Human Prostate Cancer Cells), HepG2, NIC-H460 and Mia-paca-2 were diluted to 1 ⁇ 10 5 cells/ml each in DMEM medium containing 10% fetal bovine serum, then calcein-AM was added to 25 ⁇ M, and then at 37° C. for 1 hour After cultivation, the cells were washed with DMEM medium to prepare calcein-labeled target cancer cells.
- Cancer cell killing ability (%) ⁇ (measured value-minimum value)/(maximum value-minimum value) ⁇ x100
- the minimum value is a measurement value of a well in which only calcein-labeled target cancer cells are present
- the maximum value is a measurement value of a well in which the cells are completely dissolved by adding 0.1% TritonX-100 to the calcein-labeled target cancer cells.
- iNKT cells have high killing ability against cancer cells, and it was confirmed that the cancer cell killing ability increased in proportion to the number of cells of iNKT cells (FIG. 6).
- Example 6 In vivo cancer cell killing ability verification of iNKT cells
- CFPAC-1 Human Huctal Pancreatic Adenocarcinoma Cells 2x10 6 cells/ml 5 ml expressing luciferase on the back of nude mice at 8 weeks of age (Balb/c-nude Mouse, average weight 20-25 g).
- a pancreatic cancer cell xenograft mouse animal model was prepared. The next day, after injecting 200 ul of PBS as a negative control or iNKT (1 ⁇ 10 7 cells/200 ul PBS) as a negative control group, the tumor size was confirmed through IVIS 100 (PerkinElmer) at 7 days intervals.
- the tumor size formed in the iNKT experimental group (8.01x10 9 radiance) was significantly reduced compared to the tumor size formed in the negative control group [1.21x10 10 radiance] on the 14th day after PBS or iNKT injection ( Fig. 7).
- Example 7 Construction of a dual cistronic lentiviral vector encoding CAR
- CAR Chimeric Antigen Receptor
- CD8 Leader SEQ ID NO: 1
- CD19 scFv SEQ ID NO: 2
- CD8 Hinge SEQ ID NO: 5
- CD8 Transmembrane SEQ ID NO: 6
- CD19-CAR1 gene containing Fc- ⁇ Gamma
- GFP Green Fluorescent Protein
- CD8 reader SEQ ID NO: 1
- CD19 scFv SEQ ID NO: 2
- CD8 hinge SEQ ID NO: 5
- CD8 transmembrane domain SEQ ID NO: 6
- CD28 Intracellular domain SEQ ID NO: 8
- CD19-CAR2 gene including CD3 ⁇ (Zetta) (SEQ ID NO: 9), IRES (Internal Ribosome Entry Site) (SEQ ID NO: 10) and GFP (SEQ ID NO: 11);
- CD8 reader SEQ ID NO: 1
- MSLN Mesothelin
- scFv SEQ ID NO: 3
- CD8 hinge SEQ ID NO: 5
- CD8 transmembrane domain SEQ ID NO: 6
- CD28 intracellular domain SEQ ID NO: 8
- CD3 ⁇ MSLN-CAR gene including (SEQ ID NO: 9), IRES (SEQ ID NO: 10) and GFP (SEQ ID NO: 11);
- CD8 reader SEQ ID NO: 1
- HER2 Human Epidermal Growth Factor Receptor 2
- scFv SEQ ID NO: 4
- CD8 hinge SEQ ID NO: 5
- CD8 transmembrane domain SEQ ID NO: 6
- CD28 intracellular domain SEQ ID NO: Number 8
- CD3 ⁇ SEQ ID NO: 9
- IRES SEQ ID NO: 10
- HER2-CAR gene containing GFP SEQ ID NO: 11
- the IRES was inserted to clone the CAR gene into a vector constituting a double cistron.
- Example 8 Preparation of CAR-iNKT using direct reprogramming from PBMC to NKT cells
- PBMC in culture (2.5% StemPro-34 Nutrient Supplement, 2 mM Glutamax I, 1% Penicillin/Streptomycin, 20 ng/ml human IL-3, 20 ng/ml human IL-6, 100 ng/ml human SCF, 100 ng /ml in Stempro SFEM II containing human FLT3), cultured for 4 days with medium exchange every 2 days.
- Reprogramming factors (Oct4, Sox2, Klf4 and Myc) and the CD19-CAR1 gene, CD19-CAR2 gene, MSLN-CAR gene, or HER2-CAR gene produced in Example 7 to transform the PBMC cells Sendai virus system expressing [Oct4, Sox2, Klf4 and Myc expression RNA-based Sendai virus (CytoTune 2.0 Sendai Reprogramming Kit, Thermo Scientific); OSKM-SeV] and 4 types of lentiviruses expressing the 4 types of CARs of Example 7 were used.
- the Sendai virus (5 MOI), PBMC cells, and polybrene (4 ⁇ g/ml) were cultivated together in a standard culture medium (SCM medium) for 1 day, and then a fresh medium Replaced with.
- SCM medium standard culture medium
- iNKT 2 medium containing anti-CD3 antibody or AHR agonist
- lentivirus (2 MOI) and polybrene expressing CD19-CAR1 gene, CD19-CAR2 gene, MSLN-CAR gene or HER2-CAR gene 4 mg/ml was added and cultured for an additional 4-28 days, so that the induced NKT cells were transduced with the CAR gene (CAR-iNKT cells) (Fig. 9).
- lentivirus 2 MOI
- polybrene expressing CD19-CAR1 gene, CD19-CAR2 gene, MSLN-CAR gene or HER2-CAR gene 4 mg/ml
- the lentivirus expressing CAR is inoculated into the culture medium by selecting from the step of culturing in the iNKT first medium or the step of culturing in the iNKT second medium after introduction of the reprogramming factor at the same time as (Day 0).
- the cells in the reprogramming process were transformed from PBMC cells to NKT cells.
- CD56 antibody, CD3 antibody, CD19 antigen, MSLN antigen, HER2 After staining the cells with antigen, the CD56 + CD3 + CD19-CAR-iNKT cell group, the CD56 + CD3 + MSLN-CAR-iNKT cell group, and the CD56 + CD3 + HER2-CAR-iNKT cell group were analyzed using a flow cytometer.
- iNKT cells into which the CD19-CAR1 gene was introduced CD19-CAR-iNKT cells
- FACS analysis was performed in the same manner as in Example 1.
- MSLN-CAR-iNKT cells MSLN-CAR-iNKT cells
- HER2-CAR-iNKT cells iNKT cells into which the HER2-CAR gene has been introduced
- CD3-PE BD Bioscience
- MSLN antigens are primarily -After 20 minutes reaction at room temperature with biotin or HER2 antigen-biotin-added FACS buffer, the cells were washed and recovered using a centrifuge. Secondly, after 20 minutes reaction at room temperature with a FACS buffer to which avidin-APC (Allophycocyanin) was added, the cells were washed and recovered using a centrifuge and analyzed by FACS.
- CD56 + CD3 + CD19-CAR-iNKT cells with an efficiency of 20.3% (Fig. 10)
- Fig. 11 CD56 + CD3 + HER2-CAR- It was confirmed that iNKT cells were prepared with an efficiency of 33.1% (FIG. 12).
- Example 9 Measurement of cancer cell killing ability of iNKT cells introduced with CD19-CAR2
- the iNKT cells of Example 1 and the iNKT cells (CD19-CAR2-iNKT cells) introduced with CD19-CAR2 of Example 8 were each cultured to a cell density of 0.25 ⁇ 10 5 cells/ml or 1 ⁇ 10 5 cells/ml After dilution with, 100 ul each was dispensed into a 96-well plate.
- a cell density 0.25 ⁇ 10 5 cells/ml or 1 ⁇ 10 5 cells/ml
- 100 ul each was dispensed into a 96-well plate.
- calcein-labeled target cancer cells were prepared by the method of Example 5. After adding 1 ⁇ 10 5 cells/ml of calcein-labeled target cancer cells to a 96-well plate at 100 ul/well, the cancer cell killing ability was measured by the method of Example 5.
- CD19-CAR2-iNKT cells exhibited higher killing ability than control iNKT cells against target cancer cells (FIG. 13).
- Example 10 Measurement of cancer cell killing ability of iNKT cells introduced with MSLN-CAR or HER2-CAR
- Example 1 INKT cells of Example 1, iNKT cells into which MSLN-CAR of Example 8 was introduced (MSLN-CAR-iNKT cells) and iNKT cells into which HER2-CAR of Example 8 was introduced (HER2-CAR-iNKT cells), respectively After diluting with a culture solution to a density of 0.25 ⁇ 10 5 cells/ml or 1 ⁇ 10 5 cells/ml, each 100 ul was dispensed into a 96-well plate. Using cancer cells PC3 (PC-3), CFPAC-1, and HepG2, calcein-labeled target cancer cells were prepared by the method of Example 5. After adding 1 ⁇ 10 5 cells/ml of calcein-labeled target cancer cells to a 96-well plate at 100 ul/well, the cancer cell killing ability was measured by the method of Example 5.
- PC3 PC-3
- CFPAC-1 CFPAC-1
- HepG2 HepG2
- MSLN-CAR-iNKT cells or HER2-CAR-iNKT cells exhibited higher killing ability than control iNKT cells for target cancer cells (FIGS. 14 to 15 ).
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Abstract
Description
Claims (19)
- I) 리프로그래밍 인자(Reprogramming Factor) 또는 II) 리프로그래밍 인자(Reprogramming Factor) 및 CAR(Chimeric Antigen Receptor) 유전자가 도입된 분리된 세포를 a) 성장인자, 사이토카인 및 GSK3β(Glycogen Synthase Kinase 3 beta) 저해제(Inhibitor)를 포함하는 제 1 배지; 및 b) (1) 성장인자, 사이토카인 및 AHR(Aryl Hydrocarbon Receptor) 작용제(Agonist), 또는 (2) 성장인자, 사이토카인 및 항-CD3 항체를 포함하는 제 2 배지;에서 순차적으로 배양하여 NKT 세포로 직접 리프로그래밍 시키는 단계를 포함하는, iNKT(induced Natural Killer T) 세포 제조방법.
- 제1항에 있어서, 상기 성장인자는 SCF(Stem Cell Factor), FLT3(FMS-like Tyrosine Kinase) 및 이들의 조합으로 이루어지는 군으로부터 선택되는 어느 하나 이상인, iNKT 세포 제조방법.
- 제1항에 있어서, 상기 사이토카인은 IL(Interleukin)-3, IL-6, IL-2, IL-7, IL-15 및 이들의 조합으로 이루어지는 군으로부터 선택되는 어느 하나 이상인, iNKT 세포 제조방법.
- 제1항에 있어서, 상기 a)의 제 1 배지는 SCF, FLT3, IL-3, IL-6 및 CHIR99021를 포함하는 배지인, iNKT 세포 제조방법.
- 제1항에 있어서, 상기 b)의 제 2 배지는 (1) SCF, FLT3, IL-2, IL-7, IL-15, OKT3 및 UCHT1를 포함하는 배지, 또는 (2) SCF, FLT3, IL-2, IL-7, IL-15, FICZ 및 비오카닌 A를 포함하는 배지 중 선택되는 어느 하나인, iNKT 세포 제조방법.
- 제1항에 있어서, 상기 a)의 제 1 배지 또는 b)의 제 2 배지는 FBS(Fetal Bovine Serum), 항생제 및 이들의 조합으로 이루어지는 군으로부터 선택되는 어느 하나 이상을 추가로 포함하는 것인, iNKT 세포 제조방법.
- 제1항에 있어서, 리프로그래밍 인자가 도입된 분리된 세포는 상기 a)의 제 1 배지에서 4 내지 8 일 동안 배양한 후, 상기 b)의 제 2 배지에서 12 일 이상 배양하는 것인, iNKT 세포 제조방법.
- 제1항에 있어서, 상기 리프로그래밍 인자는 Lin28, Asc11, Pitx3, Nurr1, Lmx1a, Nanog, Oct4, Oct3, Sox2, Klf4, Myc 및 이들의 조합으로 이루어지는 군으로부터 선택되는 어느 하나 이상인, iNKT 세포 제조방법.
- 제8항에 있어서, 상기 리프로그래밍 인자는 Oct4, Sox2, Klf4 및 Myc인, iNKT 세포 제조방법.
- 제1항에 있어서, 상기 리프로그래밍 인자가 도입되는 분리된 세포는 NKT 세포를 제외한 체세포인 것인, iNKT 세포 제조방법.
- 제1항에 있어서, 상기 CAR 유전자는 상기 리프로그래밍 인자 도입시, 상기 a)의 제 1 배지에서 배양시 또는 상기 b)의 제 2 배지에서 배양시 중 선택되는 어느 하나의 시점에서 상기 분리된 세포에 도입되는 것인, iNKT 세포 제조방법.
- 제1항에 있어서, 상기 CAR 유전자는i) CD8 리더(Leader), CD19 scFv, CD8 힌지(Hinge), CD8 막 관통 도메인 및 Fc-γ 수용체를 포함하는 CAR 유전자;ii) CD8 리더, CD19 scFv, CD8 힌지, CD8 막 관통 도메인, CD28 세포내 도메인, CD3ζ 및 IRES(Internal Ribosome Entry Site)를 포함하는 CAR 유전자;iii) CD8 리더, MSLN(Mesothelin) scFv, CD8 힌지, CD8 막 관통 도메인, CD28 세포내 도메인, CD3ζ 및 IRES를 포함하는 CAR 유전자; 및iV) CD8 리더, HER2(Human Epidermal Growth Factor Receptor 2) scFv, CD8 힌지, CD8 막 관통 도메인, CD28 세포내 도메인, CD3ζ 및 IRES를 포함하는 CAR 유전자;로 이루어지는 군으로부터 선택되는 어느 하나인, iNKT 세포 제조방법.
- 제12항에 있어서, 상기 CAR 유전자는 GFP(Green Fluorescent Protein)를 추가로 포함하는 것인, iNKT 세포 제조방법.
- 제1항에 있어서, 상기 제조된 iNKT 세포는 CD56+, CD3+ 및 이들의 조합으로 이루어지는 군으로부터 선택되는 어느 하나 이상을 발현하는 것인, iNKT 세포 제조방법.
- 제1항 내지 제14항 중 어느 한 항의 방법에 따라 제조된 iNKT 세포.
- 제1항 내지 제14항 중 어느 한 항의 방법에 따라 제조된 iNKT 세포를 유효성분으로 포함하는, 암 예방 또는 치료용 세포치료제 조성물.
- 제1항 내지 제14항 중 어느 한 항의 방법에 따라 제조된 iNKT 세포를 유효성분으로 포함하는, 암 예방 또는 치료용 약학 조성물.
- 제17항에 있어서, 상기 암은 췌장암, 폐암, 난소암, 유방암, 대장암, 골수암, 간암, 뇌암, 전립선암, 위암, 결장암, 신경교종, 흑색종, 림프종, 직장암, 혈액암 및 이들의 조합으로 이루어지는 군으로부터 선택되는 어느 하나 이상인, 암 치료용 약학 조성물.
- a) 성장인자, 사이토카인 및 GSK3β 저해제를 포함하는 제 1 배지를 함유하는 제 1 용기; 및 b) (1) 성장인자, 사이토카인 및 AHR 작용제, 또는 (2) 성장인자, 사이토카인 및 항-CD3 항체를 포함하는 제 2 배지를 함유하는 제 2 용기;를 포함하는 iNKT 세포 제조용 직접 리프로그래밍 배지 키트.
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| CN202080038913.6A CN113874492B (zh) | 2019-03-28 | 2020-03-27 | 用于产生免疫细胞的方法及其用途 |
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| KR102604208B1 (ko) * | 2021-09-10 | 2023-11-23 | 한국생명공학연구원 | 유도 자연살해세포의 제조방법 및 그의 용도 |
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| EP3954762A4 (en) | 2023-01-18 |
| CN113874493A (zh) | 2021-12-31 |
| EP3950935A4 (en) | 2023-06-07 |
| CN113874492A (zh) | 2021-12-31 |
| JP7429713B2 (ja) | 2024-02-08 |
| KR102298640B1 (ko) | 2021-09-07 |
| CN113874493B (zh) | 2024-05-10 |
| EP3954762A1 (en) | 2022-02-16 |
| KR102298639B1 (ko) | 2021-09-07 |
| US12435117B2 (en) | 2025-10-07 |
| CN113874492B (zh) | 2024-03-19 |
| EP3950935A1 (en) | 2022-02-09 |
| JP2022528086A (ja) | 2022-06-08 |
| US20220160769A1 (en) | 2022-05-26 |
| WO2020197318A1 (ko) | 2020-10-01 |
| US20220184128A1 (en) | 2022-06-16 |
| JP2022527932A (ja) | 2022-06-07 |
| KR20200115358A (ko) | 2020-10-07 |
| KR20200115357A (ko) | 2020-10-07 |
| JP2023179554A (ja) | 2023-12-19 |
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