WO2024043322A1 - 目的ウイルスの製造方法、および培養組成物 - Google Patents
目的ウイルスの製造方法、および培養組成物 Download PDFInfo
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Definitions
- the present invention relates to a method for producing a target virus, which includes culturing animal cells under predetermined conditions. Furthermore, the present invention relates to a culture composition containing an animal cell, a virus, and a medium.
- Adeno-associated virus is a linear single-stranded DNA virus that belongs to the Parvoviridae family.
- the wild-type AAV genome contains regulatory genes for replication (Rep genes) and structural genes for the capsid (Cap genes), flanked by inverted terminal repeats (ITRs) for viral replication and packaging.
- AAV vectors are capable of gene introduction into either proliferating or non-proliferating cells, and are particularly capable of long-term expression in non-dividing cells. AAV is also considered non-pathogenic and has low immunogenicity. Based on the above, clinical applications of AAV vectors as vectors for gene therapy are progressing.
- Patent Document 1 describes treating CHO cells (Chinese hamster ovary cells) into which antibody genes have been introduced with a BET (bromodomain and extra terminal motif) inhibitor. It has been described that the production amount (titer) of antibodies can be improved by the following methods.
- Patent Document 2 describes that a bromodomain inhibitor improves virus production of HSV that infects humans.
- Patent Documents 3 and 4 describe therapeutic methods for reactivating HIV latent in cells and removing infected cells, and use an inhibitor of the bromodomain protein PCAF or JQ1.
- An object of the present invention is to provide a method for producing a target virus that can increase the amount of virus produced.
- a further object of the present invention is to provide a culture composition containing animal cells, a virus, and a culture medium, which can increase the amount of virus produced.
- the present inventors conducted extensive studies to solve the above problems, and found that by culturing animal cells into which an exogenous recombinant nucleic acid encoding a target virus was introduced in a medium with BET function suppressed, It has been found that the production amount of the target virus can be improved.
- the present invention was completed based on the above findings.
- ⁇ 1> A method for producing a target virus, comprising a virus production step of culturing animal cells into which an exogenous recombinant nucleic acid encoding a target virus has been introduced in a medium with BET function suppressed.
- ⁇ 2> The method according to ⁇ 1>, wherein transcription by RNA polymerase III is promoted by suppressing the BET function.
- ⁇ 3> The method according to ⁇ 1> or ⁇ 2>, wherein the BET function is suppressed by the medium containing a BET inhibitor.
- the BET inhibitor is (S)-(+)-tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4 ,3-a][1,4]diazepin-6-yl)acetate, 2-methoxy-N-(3-methyl-2-oxo-1,2,3,4-tetrahydro-quinazolin-6-yl)-benzenesulfonamide, N-[6-(3-methanesulfonamido-4-methylphenyl)-3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-8-yl]carbamate
- the BET inhibitor is (S)-(+)-tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4 ,3-a][1,4]diazepin-6-yl)acetate, 2-methoxy-N-(3-methyl-2-oxo-1,2,3,4-tetrahydro-quinazolin-6-yl)-benzenesulfonamide, N-[6-(3-methanesulfonamido-4-methylphenyl)-3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-8-yl]carbamate, and (4S)- Group consisting of 6-(4-chlorophenyl)-N-ethyl-8-methoxy-1-methyl-4H-[1,2,
- ⁇ 7> The method according to any one of ⁇ 3> to ⁇ 6>, wherein the concentration of the BET inhibitor in the medium is 0.01 ⁇ mol/L to 100 ⁇ mol/L.
- ⁇ 8> The method according to any one of ⁇ 1> to ⁇ 7>, wherein the exogenous recombinant nucleic acid is expressed in a constitutive expression system in animal cells.
- ⁇ 9> The method according to any one of ⁇ 1> to ⁇ 8>, wherein at least one of the exogenous recombinant nucleic acids includes a promoter controlled by RNA polymerase III.
- ⁇ 10> The method according to any one of ⁇ 1> to ⁇ 9>, wherein the target virus is an adeno-associated virus.
- RNA that is a gene transcription product of the exogenous recombinant nucleic acid is 10 times or more compared to when cultured without suppressing BET function, ⁇ 1> to ⁇ 12>.
- ⁇ 15> The method according to any one of ⁇ 1> to ⁇ 14>, wherein the animal cells are HEK293 cells.
- ⁇ 16> The method according to any one of ⁇ 1> to ⁇ 15>, wherein at least one of the exogenous recombinant nucleic acids includes a nucleic acid sequence that induces expression in a condition-specific manner.
- ⁇ 17> The method according to ⁇ 16>, wherein expression is condition-specifically induced by applying a stimulus that induces expression condition-specifically.
- ⁇ 18> The method according to any one of ⁇ 1> to ⁇ 17>, wherein the stimulus that induces expression in a condition-specific manner is that the medium contains doxycycline.
- ⁇ 19> The method according to any one of ⁇ 1> to ⁇ 18>, wherein the BET inhibitor is contained in the medium for one hour or more.
- ⁇ 20> The method according to any one of ⁇ 1> to ⁇ 19>, which comprises stopping the suppression of BET function before collecting the produced virus.
- ⁇ 21> The method according to ⁇ 20>, wherein suppression of BET function is stopped by culturing in a medium in which a BET inhibitor is reduced or removed.
- ⁇ 22> The method according to ⁇ 21>, wherein the cells are cultured for 1 hour or more in a medium in which the BET inhibitor is reduced or removed.
- ⁇ 23> The method according to any one of ⁇ 1> to ⁇ 22>, wherein a medium is supplied during the culture, and the supplied medium contains doxycycline and a BET inhibitor.
- ⁇ 24> The method according to any one of ⁇ 1> to ⁇ 23>, wherein the cell density at the time of seeding the cells is 1 ⁇ 10 4 cells/mL or more.
- ⁇ 25> The method according to any one of ⁇ 1> to ⁇ 24>, which includes a proliferation step of multiplying cells before the virus production step.
- ⁇ 26> Before the virus production process, there is a multiplication process in which cells are cultured to 1 ⁇ 10 4 cells/mL or more in a medium that does not contain doxycycline and BET inhibitor, and the medium in the virus production process is free of doxycycline and BET inhibitors.
- the method according to ⁇ 25> comprising an inhibitor.
- ⁇ 27> The method according to any one of ⁇ 1> to ⁇ 26>, wherein at least a part of the virus production process is perfusion culture.
- ⁇ 28> The method according to any one of ⁇ 1> to ⁇ 27>, wherein the period of the virus production step is 24 hours or more and 30 days or less.
- ⁇ 29> The method according to any one of ⁇ 1> to ⁇ 28>, which includes collecting the virus.
- ⁇ 30> An animal cell into which a foreign recombinant nucleic acid encoding a target virus has been introduced and in which BET function is suppressed; virus and With the medium, A culture composition comprising.
- ⁇ 31> The culture composition according to ⁇ 30>, wherein the virus is an adeno-associated virus.
- ⁇ 32> The culture composition according to ⁇ 30> or ⁇ 31>, wherein the medium contains a BET inhibitor.
- the production amount of the target virus can be improved.
- FIG. 1 shows the amount of AAV produced when cells cultured in a 24-well plate were treated with a compound.
- FIG. 2 shows the gene expression level when cells cultured in a 24-well plate were treated with a compound.
- Each column shows the expression of E4, VA-RNA, E2A, Rep, and Cap from the left.
- FIG. 3 shows the amount of AAV produced when cells cultured in a 96-well plate were treated with a compound. From the left, each column shows the results for 1.35 ⁇ mol/L (1.35 ⁇ M in the figure), 0.45 ⁇ mol/L (0.45 ⁇ M in the figure), and 0.15 ⁇ mol/L (0.15 ⁇ M in the figure). show.
- FIG. 4 shows the amount of AAV produced in compound treatment (JQ1 at 4 ⁇ mol/L (4 ⁇ M in the figure)).
- a numerical range indicated using " ⁇ " means a range that includes the numerical values listed before and after " ⁇ " as the minimum and maximum values, respectively.
- Promoter refers to a DNA control region/sequence capable of binding RNA polymerase and responsible for initiation of transcription of downstream coding or non-coding sequences.
- a vector is a DNA or RNA molecule that is used to artificially transport a foreign gene to another cell.
- a vector for expressing a gene is called an expression vector.
- Vectors include episomal (eg, plasmid) vectors and non-episomal vectors. Vectors can be introduced into host cells by methods such as transfection, transduction, cell fusion, and lipofection.
- a gene refers to a nucleic acid molecule that encodes a polypeptide or RNA, and includes, for example, a nucleic acid molecule such as cDNA or genomic DNA.
- the method for producing a target virus of the present invention includes a virus production step in which animal cells into which an exogenous recombinant nucleic acid encoding a target virus has been introduced are cultured in a medium with BET function suppressed.
- Methods for suppressing BET function include (1) suppression of BET function by treatment with a BET inhibitor (preferably a bromodomain inhibitor), (2) inhibition of BET expression (BET-related (3) competitive inhibition by overexpression of a peptide or protein.
- Another method is to suppress the function of BET by controlling proteins upstream or downstream of the molecular signal caused by BET (eg, acetylated histone, P-TEFb) using the same method as described above.
- BET inhibitor preferably a bromodomain inhibitor
- Bromodomains are protein domains known to recognize acetylated lysines in histones, recruit regulatory proteins, and control chromatin structure and gene expression.
- bromodomain-containing proteins there are approximately 50 types of bromodomain-containing proteins in humans. Proteins containing bromodomains include the bromodomain and extra-terminal family proteins (BETs), which have bromodomain repeat sequences and specific terminal sequences. Bromodomain-containing protein 2 (BRD2), BRD3, BRD4, and BRDT are known as BETs. These proteins have N-terminal bromodomains, Bromodomain1 (BD1) and Bromodomain2 (BD2), respectively.
- BETs extra-terminal family proteins
- the BET function can be suppressed by containing a BET inhibitor (preferably a bromodomain inhibitor) in the medium.
- a BET inhibitor preferably a bromodomain inhibitor
- BRD2, BRD3 and BRD4 have bromodomains, and the function of BRD2, BRD3 and/or BRD4 is inhibited by a BET inhibitor (preferably a bromodomain inhibitor).
- the equilibrium dissociation constant: Kd value for either BRD2, BRD3 or BRD4 is preferably 150 nmol/L or less, more preferably 100 nmol/L or less. , more preferably 50 nmol/L or less.
- the Kd value for bromodomain 1 in BRD4 is 100 nmol/L or less, and the Kd value for bromodomain 2 is 250 nmol/L or less. More preferably, the Kd value for bromodomain 1 is 70 nmol/L or less, and the Kd value for bromodomain 2 is 200 nmol/L or less.
- a surface plasmon resonance (SPR) measurement device when polarized light is irradiated so as to be totally reflected on the metal thin film surface of a sensor chip, an SPR signal with a reduced reflected light intensity is observed in a part of the reflected light. Since the angle at which the SPR signal is generated changes depending on the mass on the sensor chip, the angle at which the SPR signal is generated changes when the ligand immobilized on the sensor chip and the added analyte bind or dissociate.
- the measurement results can be obtained as a sensorgram showing the angular change of the SPR signal and the response unit (RU) converted from the angular change over time.
- the IC50 against any of BRD2, BRD3 or BRD4 is preferably 1 ⁇ mol/L or less, more preferably 500 nmol/L or less, and 200 nmol/L or less. It is more preferable that it is, it is still more preferable that it is 100 nmol/L or less, and it is especially preferable that it is 50 nmol/L or less.
- IC50 for either BRD2, BRD3 or BRD4 can be determined by plotting the binding inhibition value between acetylated histone and bromodomain against the concentration of the inhibitor and calculating the concentration equivalent to 50% inhibition. .
- BET inhibitors are not particularly limited, but include: (+)-JQ1 (also known as (S)-(+)-tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f][1, 2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetate [Cas#: 1268524-70-4]), PFI-1 (also known as 2-methoxy-N-(3-methyl-2-oxo-1,2,3,4-tetrahydro-quinazolin-6-yl)-benzenesulfonamide [Cas#: 1403764-72-6] ), Bromosporine (also known as N-[6-(3-methanesulfonamido-4-methylphenyl)-3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-8-yl]
- the concentration of the BET inhibitor (preferably a bromodomain inhibitor) in the medium is preferably 0.01 ⁇ mol/L to 100 ⁇ mol/L, more preferably 0.05 ⁇ mol/L to 100 ⁇ mol/L, and even more preferably It is 0.1 ⁇ mol/L to 50 ⁇ mol/L, particularly preferably 1 ⁇ mol/L to 10 ⁇ mol/L.
- the treatment period with a BET inhibitor that is, the period in which the BET inhibitor (preferably a bromodomain inhibitor) is included in the medium is preferably 1 hour or more and 240 hours or less, more preferably 6 hours.
- the time period is 240 hours or less, more preferably 12 hours or more and 240 hours or less, further preferably 24 hours or more and 120 hours or less, particularly preferably 48 hours or more and 96 hours or less.
- the upper limit of the period in which the BET inhibitor (preferably a bromodomain inhibitor) is contained in the medium is not particularly limited, but is generally 240 hours or less, preferably 120 hours or less, and particularly preferably 96 hours or less. be.
- the medium may contain doxycycline.
- concentration of doxycycline is preferably 5 ⁇ g/mL or less, more preferably 1 ⁇ g/mL or less, even more preferably 700 ng/mL or less, particularly preferably 500 ng/mL or less.
- the addition time of doxycycline is preferably 1 hour or more, more preferably 6 hours or more, even more preferably 12 hours or more, even more preferably 24 hours or more, and still more preferably 48 hours or more.
- a medium is preferably supplied during culture, and the supplied medium may contain doxycycline and a BET inhibitor (preferably a bromodomain inhibitor).
- the supplied medium refers to the medium added during cell culture.
- the culture method using the supplied medium is not particularly limited, but perfusion culture is preferable.
- the period of time during which doxycycline and a BET inhibitor (preferably a bromodomain inhibitor) are allowed to act is preferably 1 hour or more, more preferably 6 hours or more, even more preferably 12 hours or more, even more preferably 24 hours or more, and even more preferably It is more than 48 hours.
- the method of the present invention may include stopping suppression of BET function before recovering the produced virus. Stopping suppression of BET function means removing a factor that inhibits BET expression or removing an inhibitor from the medium. Although the method of removal is not particularly limited, it is preferable to completely or partially replace the medium in which the cells are cultured. Preferably, suppression of BET function can be stopped by culturing in a medium in which a BET inhibitor (preferably a bromodomain inhibitor) is reduced or removed. Thereby, it is possible to avoid contamination of a BET inhibitor (preferably a bromodomain inhibitor) with a virus composition used as a gene therapy drug. The period during which suppression of the BET function is stopped is preferably 24 to 72 hours.
- the period of culturing cells in a medium in which BET inhibitors (preferably bromodomain inhibitors) have been reduced or removed by completely or partially replacing the culture medium is preferably 1 hour or more, and 1 to 240 hours. is more preferable, 12 to 120 hours is even more preferable, and 24 to 72 hours is particularly preferable.
- the stimulation that induces condition-specific expression may be stopped along with stopping the suppression of BET function. If the stimulus that induces expression in a condition-specific manner is due to the addition of a tetracycline drug, the condition-specific The stimulus that induces expression can be stopped. Furthermore, when the tetracycline drug is doxycycline, it can be similarly replaced with a medium that does not contain doxycycline.
- the culture medium is replaced with a medium that does not contain a BET inhibitor (preferably a bromodomain inhibitor). It is preferable to culture for ⁇ 72 hours.
- a BET inhibitor preferably a bromodomain inhibitor
- a tetracycline drug for 12 to 48 hours.
- RNA polymerase III is an RNA transcription factor present in eukaryotic cells. Promoters that promote transcription by RNA polymerase III include H1 promoter and U6 promoter. Enhancement preferably refers to an increase of 2-fold or more at the RNA level. It is known that expression of VA-RNA, which will be described later, is induced by RNA polymerase III.
- target virus refers to a virus that introduces foreign nucleic acids into cells and causes them to be produced.
- Target viruses include adeno-associated viruses, lentiviruses, baculoviruses, retroviruses, and the like, and among the above, adeno-associated viruses are preferred.
- Adeno-associated virus refers to a small, replication-incompetent, non-enveloped virus containing a single-stranded DNA of approximately 4700 bases in the Parvoviridae and Dependoparvovirus families.
- Serotype 2 is one of the serotypes that has been widely studied for a long time, and is known to have a very wide host range.
- Serotype 1 AAV1
- serotype 5 AAV5
- AAV6 serotype 6
- AAV1 has a high efficiency of gene introduction into muscles, liver, airways, central nervous system, etc.
- AAV5 has high efficiency of gene introduction into central nervous system, liver, retina, etc.
- AAV6 has high efficiency of gene introduction into heart, muscles, liver, etc.
- serotype 2 or serotype 5 Particularly preferred is serotype 5.
- An adeno-associated virus gene refers to a gene composed of one or more nucleic acid sequences derived from one or more adeno-associated virus serotypes.
- Adeno-associated virus genes are preferably genes involved in AAV replication and packaging, and genes encoding AAV component proteins.
- AAV is a non-enveloped virus that multiplies in the presence of helper viruses such as adenovirus and herpesvirus.
- helper viruses such as adenovirus and herpesvirus.
- AAV replication was classically performed by co-infecting host cells with adenovirus.
- the gene responsible for the helper action of adenovirus has been identified, and plasmids incorporating this gene are also being used.
- a plasmid containing the Rep and Cap genes, an adenovirus helper plasmid, and a plasmid containing a therapeutic or prophylactic gene can be packaged into recombinant AAV (rAAV) by simultaneously transfecting cells.
- the Rep and Cap genes encode proteins involved in virion replication and packaging.
- the Rep gene is expressed from the P5 and p19 promoters.
- the Cap region expresses VP1, VP2, and VP3.
- the p40 promoter can be mentioned as a promoter naturally held by the Cap gene.
- Adeno-associated virus genes may be wild-type genes, but as long as they exhibit their original functions, base substitutions, deletions, insertions, additions, etc. to the wild-type genes may be used. You may also use a gene that has been modified.
- the number of modified bases is preferably 1 to 20, or more.
- the number is preferably 1 to 10, more preferably 1 to 3.
- the nucleotide sequence of the modified adeno-associated virus gene preferably exhibits sequence identity of 85% or more, more preferably 90% or more, with the nucleotide sequence of the wild-type adeno-associated virus gene, More preferably, they exhibit sequence identity of 95% or more, and even more preferably 98% or more.
- a vector containing the Rep gene and Cap gene can be introduced into the cell.
- the arrangement of the Rep gene and Cap gene in the vector is not particularly limited, and the Rep gene may be located upstream of the Cap gene or downstream of the Cap gene, but preferably, the Rep gene is Located upstream of the Cap gene.
- the Rep gene is a viral replication protein known to those skilled in the art that is collectively required for the replication of the viral genome, or a protein that mediates AAV-2 DNA replication, such as, for example, the human herpesvirus 6 (HHV-6) Rep gene. refers to the region of the AAV genome that encodes a functional homologue thereof (known to be 1). Therefore, the coding region of the Rep gene includes at least the genes encoding AAV REP78 and REP68 (long form REP proteins) and REP52 and REP40 (short form REP proteins), or functional homologs thereof.
- the coding region of the Rep gene used in the present invention may be derived from any AAV serotype, but is preferably derived from AAV2. Those derived from AAV2 include REP78 and REP68, as well as REP52 and REP40, and ITR.
- Cap gene refers to the region in the AAV genome encoding the viral capsid protein known to those skilled in the art. Examples of these capsid proteins are the AAV capsid proteins VP1, VP2 and VP3.
- the Cap gene used in the present invention may be derived from any AAV serotype, but is preferably derived from AAV2 or AAV5. Particularly preferred is AAV5.
- a plasmid for example, a plasmid, a virus-derived nucleic acid sequence, an artificially designed nucleic acid, etc. can be used, and a plasmid is preferable.
- therapeutic or preventive genes may be introduced into cells. It is preferable that the therapeutic or prophylactic gene is introduced sandwiched between ITRs.
- Therapeutic or prophylactic genes include genes that are incomplete or missing in the genome of the target cell or encode non-natural proteins that have the desired biological or therapeutic effect (e.g. antiviral function).
- therapeutic or prophylactic genes include inflammatory diseases, autoimmunity, chronic and infectious diseases (including disorders such as AIDS, cancer, neurological diseases, cardiovascular diseases, hypercholesteremia, etc.), anemia and hematology.
- examples include genes used for the treatment or prevention of various blood diseases such as philophilia, and gene defects (eg, cystic fibrosis, Gaucher disease, adenosine deaminase (ADA) deficiency, emphysema, etc.).
- some antisense oligonucleotides useful in antisense therapy against cancer and against viral diseases such as short oligonucleotides complementary to sequences around the translation start site (AUG codon) of mRNA. nucleotides).
- the therapeutic or preventive gene may be linked to a promoter for expressing the therapeutic or preventive gene.
- Promoters for expressing therapeutic or preventive genes are not particularly limited, but include cytomegalovirus-derived promoters (including enhancers if desired), SV40 early promoters, human elongation factor-1 ⁇ (EF-1 ⁇ ) promoters, and human ubiquitin C. Promoters include retroviral Rous sarcoma virus LTR promoters, dihydrofolate reductase promoters, ⁇ -actin promoters, and phosphoglycerate kinase (PGK) promoters.
- the therapeutic or preventive gene and the promoter for expressing the gene are preferably sandwiched between ITR sequences.
- a viral helper gene derived from an adenovirus is preferably introduced into cells.
- Viral helper genes are non-adeno-associated viral genes to enable replication and packaging of adeno-associated viruses.
- viruses helper gene genes derived from viruses other than adeno-associated virus are used.
- Specific examples of viral helper genes include those derived from adenovirus or herpesvirus, and preferably, the viral helper gene is derived from adenovirus.
- Viral helper genes derived from adenovirus include E1A, E1B, E2A, E4, and VA-RNA.
- the regions of the adenovirus genome necessary for the AAV genome to be replicated and packaged into a capsid to form a viral virion in a host cell that has all or part of the E1 region are the E2A region, the E4 region, and VA-RNA region.
- the E4 34 kDa protein encoded by the E4 region open reading frame 6 (E4ORF6) is required for AAV replication.
- the viral helper genes are the E2 gene, the E4 gene, and the VA-RNA gene.
- the VA-RNA gene is preferably the VA-RNAI gene.
- Viral helper genes derived from adenoviruses may be wild-type genes, but as long as they exhibit their original functions, bases may be added to the wild-type genes. Genes that have been modified such as substitution, deletion, insertion, or addition may also be used.
- the number of modified bases is preferably 1 to 20, more preferably 1 to 10, and even more preferably is 1 to 3.
- the nucleotide sequence of the modified viral helper gene preferably exhibits sequence identity of 85% or more, more preferably 90% or more, and even more preferably exhibits a sequence identity of 95% or more, and even more preferably a sequence identity of 98% or more.
- a vector containing the viral helper gene can be introduced into the cells.
- a vector containing a viral helper gene for example, a plasmid, a virus-derived sequence, an artificially designed nucleic acid, etc. can be used, and a plasmid is preferable.
- the viral helper gene is preferably under the control of a promoter, and may be under the control of a promoter whose expression can be regulated.
- a promoter that can control expression on and off depending on the presence or absence of a stimulus that induces expression in a condition-specific manner can be used.
- Stimuli that condition-specifically induce expression include chemical stimulation, physical stimulation, and the like, but are not particularly limited.
- Chemical stimuli include endogenous hormones, stress response, lactose, tetracycline or its derivatives (e.g. doxycycline), cumic acid, rapamycin, FKCsA, abscisic acid (ABA), tamoxifen/Cre-loxP (activation induced by tamoxifen).
- Examples include a system that uses a Cre promoter modified to enable the activation of a nucleotide sequence (a system using a Cre promoter), a riboswitch, and the like.
- Physical stimuli include blue light, heat, and the like.
- the promoter whose expression can be regulated is preferably a promoter whose expression can be regulated by a drug.
- the drug is preferably a tetracycline drug, more preferably doxycycline. That is, the stimulus that induces expression in a condition-specific manner may be that the medium contains doxycycline.
- expression-regulatable promoters include tetracycline-responsive promoters, RU486-inducible promoters, ecdysone-inducible promoters, rapamycin-inducible promoters, and metallothionein promoters.
- a specific tetracycline-responsive promoter includes Tet On/Off System (manufactured by TET Systems).
- the promoter whose expression can be regulated may be a Tet on/off system, which is a promoter whose expression can be regulated by tetracycline, or a Tet on system.
- the promoter additionally contains at least one Tet operon.
- Tet operon tetracycline-controlled transcriptional activation
- transcription can be reversibly switched on or off in the presence of the antibiotic tetracycline or one of its derivatives (e.g. doxycycline).
- the Tet repressor protein present in the cell blocks expression by binding to the Tet operator sequence introduced into the promoter. Therefore, no gene expression is observed when the Tet repressor is bound to the Tet operator sequence. Addition of tetracycline or doxycycline sequesters the Tet repressor, allowing promoter activity and turning on gene expression.
- Tet operon systems are widely available, such as the Tet operon used in the pcDNATM4/TO mammalian expression vector available from Invitroge.
- the Tet operator sequence may be upstream or downstream of the promoter whose expression is desired to be regulated. In terms of reducing expression leakage when expression is turned off, the Tet operator sequence is preferably located downstream of a promoter that can regulate expression.
- promoters include, but are not limited to, cytomegalovirus-derived promoters (CMV promoters) (including enhancers if desired), SV40 early promoters, human elongation factor-1 ⁇ (EF-1 ⁇ ) promoters, human ubiquitin C promoters, Examples include the retrovirus Rous sarcoma virus (RSV) LTR promoter, dihydrofolate reductase promoter, ⁇ -actin promoter, and phosphoglycerate kinase (PGK) promoter.
- CMV promoters cytomegalovirus-derived promoters
- SV40 early promoters include the retrovirus Rous sarcoma virus (RSV) LTR promoter, dihydrofolate reductase promoter, ⁇ -actin promoter, and phosphoglycerate kinase (PGK) promoter.
- RSV Rous sarcoma virus
- PGK phosphoglycerate kinase
- Exogenous recombinant nucleic acid means a recombinant nucleic acid introduced into a cell from outside the cell.
- An exogenous recombinant nucleic acid can be introduced into cells by methods such as transfection, transduction, and lipofection in the form of a vector containing the exogenous recombinant nucleic acid.
- Transfection refers to transfection of eukaryotes by chemical means (e.g., using reagents such as calcium phosphate or polyethyleneimine), mechanical means (e.g., electroporation), or physical means (e.g., bioballistic delivery). This refers to the introduction of nucleic acids into cells by crossing the cell membrane.
- Transduction refers to the introduction of nucleic acids into cells by crossing the membrane of eukaryotic cells via a virus-derived vector.
- Lipofection is the process of forming a complex between a vector and a positively charged lipid through electrical interaction, and introducing a nucleic acid into cells through endocytosis or membrane fusion.
- the exogenous recombinant nucleic acid is expressed in a constitutive expression system in animal cells.
- a constitutive expression system is a method of expressing for one month or more. Expression of a target gene can be maintained for a long period of time by inserting a plasmid into the chromosome, introducing an episomal vector, or introducing a foreign nucleic acid using an artificial chromosome. At this time, if a drug resistance gene is introduced into the plasmid, selection by drugs becomes possible.
- the recombinant nucleic acid is not particularly limited as long as it has a sequence that can express a virus.
- it is a sequence for expressing adeno-associated virus.
- sequences derived from helper viruses and sequences derived from adeno-associated viruses are known as sequences for expressing adeno-associated viruses, but the present invention is not limited to these as long as they can express adeno-associated viruses.
- Components derived from helper viruses include, but are not limited to, E1A, E1B, E2A, E4 and/or VA-RNA.
- Rep and Cap are known, but are not limited thereto.
- the exogenous recombinant nucleic acids contains a promoter controlled by RNA polymerase III.
- the exogenous recombinant nucleic acids are nucleic acids encoding E2A, E4, VA-RNA, Rep and Cap. More preferably in the present invention, the gene transcribed from a promoter controlled by RNA polymerase III is VA-RNAI.
- the expression of at least one RNA that is a gene transcription product of the exogenous recombinant nucleic acid is preferably 10 times or more, and more Preferably it is 10 times or more and 100 times or less, more preferably 20 times or more and 50 times or less.
- the expression of VA-RNAI is 20 times or more.
- a state in which BET function is not suppressed means that no BET inhibitor (preferably a bromodomain inhibitor) is added, endogenous BET gene mutation or expression suppression, or exogenous wild type or mutant BET. This is a state in which the entire length or part of the gene has not been introduced.
- At least one of the exogenous recombinant nucleic acids contains a nucleic acid sequence that induces expression in a condition-specific manner.
- the promoter induced by a nucleic acid sequence that induces expression in a condition-specific manner is not particularly limited, but is preferably a doxycycline-inducible TET promoter.
- any of the TT (Triple Transfection) method, the packaging cell method, or the producer cell method may be used.
- the packaging cell method or the producer cell method is preferred, and the producer cell method is most preferred.
- the TT method involves transfecting cells simultaneously with a plasmid containing the Rep gene and Cap gene, an adenovirus helper plasmid, and a plasmid containing a transgene (e.g., a desired therapeutic or prophylactic gene). rAAV).
- the packaging cell method is a method for producing AAV by introducing the remaining genes by transfection into cells in which some genes in the TT method have been integrated into the chromosomes in advance.
- the producer cell method is a method for producing AAV using cells that produce AAV without additional gene introduction.
- AAV is produced without transfection using cells in which the genes in the TT method (including at least the Rep and Cap genes) have been integrated into the chromosome.
- the producer cell method is a method for producing AAV without transfection using cells in which all genes in the TT method have been integrated into the chromosome.
- Animal cells are not particularly limited, but are preferably mammalian cells or insect cells, and more preferably mammalian cells.
- mammalian cells include, but are not limited to, human cells, mouse cells, rat cells, monkey cells, and hamster cells.
- Preferably human cells can be used.
- examples of cells include mouse myeloma (NSO) cell line, Chinese hamster ovary (CHO) cell line, HT1080, H9, HepG2, MCF7, MDBK Jurkat, NIH3T3, PC12, BHK (baby hamster kidney cells), VERO, SP2.
- NSO mouse myeloma
- CHO Chinese hamster ovary
- the cells are HEK293 cells or CHO cells, more preferably HEK293 cells.
- the method of the present invention includes a virus production step of culturing animal cells in a medium.
- Cell culture in the present invention can be carried out under normal conditions for cell culture.
- the cell density at the time of cell seeding in the virus production process is preferably 1 x 10 4 cells/mL or more, more preferably 1 x 10 5 cells/mL or more, and even more preferably 1 x 10 6 cells/mL. or more, more preferably 1 ⁇ 10 7 cells/mL or more, particularly preferably 1 ⁇ 10 8 cells/mL or more.
- the upper limit of the cell density at the time of cell seeding is not particularly limited, but is generally 1 ⁇ 10 9 cells/mL or less.
- a proliferation step of growing cells can be performed before the virus production step.
- the form of culture in the proliferation step is not particularly limited, but perfusion culture is preferable.
- cells are grown at a concentration of 1 ⁇ 10 4 cells/mL or more (more preferably 1 ⁇ 10 5 cells/mL or more, More preferably 1 ⁇ 10 6 cells/mL or more, further preferably 1 ⁇ 10 7 cells/mL or more, particularly preferably 1 ⁇ 10 8 cells/mL or more), followed by a step of culturing with doxycycline.
- the virus production process can be carried out using a medium containing a BET inhibitor (preferably a bromodomain inhibitor) and a BET inhibitor (preferably a bromodomain inhibitor).
- the cell culture temperature is not particularly limited, and the culture is carried out at a temperature at which the cells can survive.
- the culture temperature is generally 25°C to 45°C, preferably 30°C to 42°C, more preferably 35°C to 40°C, and one example is 37°C.
- the CO 2 concentration is generally 3-10% CO 2 , preferably 5-10% CO 2 , one example being 8% CO 2 .
- the period of the virus production process is preferably 24 hours or more and 30 days or less, more preferably 24 hours or more and 20 days or less, even more preferably 24 hours or more and 10 days or less, and even more preferably 24 hours or more and 7 days.
- the duration is not more than 24 hours or more, and particularly preferably 24 hours or more and 72 hours or less.
- culture batch culture, fed-batch culture, perfusion culture, or shaking culture can be performed.
- at least a part of the virus production process is perfusion culture.
- a flask or a bioreactor can be used as the culture container, but there is no particular limitation.
- the culture scale is not particularly limited, and cells can be cultured in any volume of medium, for example, cells can be cultured in a medium of 1 mL to 2000 L, preferably 1 L to 2500 L, and more preferably 50 L to 2300 L. , 400L to 2200L are particularly preferred.
- Cultivation may be performed while shaking and stirring.
- the stirring speed for shaking and stirring is generally 50 rpm to 200 rpm, preferably 80 to 150 rpm.
- the agitation culture may be a rotation agitation culture using a propeller or the like in a reactor.
- the stirring speed in the case of rotary stirring is generally 50 rpm to 200 rpm, preferably 80 to 150 rpm.
- stirring may be performed by wave-type shaking stirring or vertical movement of stirring blades, but there is no particular limitation.
- Examples of media include, but are not limited to, Expi293 Expression Medium (Thermo Fisher Scientific, A1435101), Dulbecco's Modified Eagle Medium (DMEM) containing 10% (vol/vol) fetal bovine serum (FBS).
- DMEM Dulbecco's Modified Eagle Medium
- FBS fetal bovine serum
- the high density culture medium is CD FORTICHOTM medium, CD CHO AGT medium, CHO-S-SFM medium, GIBCO® FREESTYLETM CHO expression medium, CD OPTICHO (trademark) medium, CD CHO medium, CD DG44 medium, GIBCO (registered trademark) FREESTYLE (trademark) 293 expression medium, Expi293 (trademark) expression medium, LV-MAX (trademark) production medium, FREESTYLE (trademark) F17 expression It may be a culture medium, DYNAMISTM medium, BALANCD® HEK293 medium, or similar medium, or variations thereof.
- the medium is preferably Expi293 Expression Medium (Thermo Fisher Scientific, A1435101) or Dulbecco's Modified Eagle Medium (DMEM) containing 10% (vol/vol) fetal bovine serum (FBS).
- DMEM Dulbecco's Modified Eagle Medium
- the method for producing the target virus according to the present invention may include collecting the virus.
- the target virus produced within the virus-producing cell remains within the cell or is released into the culture supernatant.
- a sample containing the target virus can be collected. can be prepared.
- the sample prepared in this manner may be used as is, or may be purified as desired.
- the culture supernatant may be used as it is as a sample containing the target virus, or may be purified if desired.
- the purification method for purifying the target virus is not particularly limited, and examples thereof include purification methods such as CsCl gradient ultracentrifugation, chromatography, and ultrafiltration.
- the target virus can be purified from a sample containing the target virus.
- gDNA genomic DNA
- residual plasmids may be digested by adding MgCl 2 and Benzonase to the sample purified as described above and performing a reaction.
- the titer of the target virus produced by the method of the present invention can be measured by conventional methods known to those skilled in the art. For example, the cell culture solution after culturing is collected, the cells are disrupted by freezing and thawing, and then the supernatant is collected by centrifugation. By adding MgCl 2 and Benzonase to the collected supernatant and performing a reaction, gDNA (genomic DNA) and remaining plasmids can be digested. It is possible to measure the titer of the target virus by using the sample containing the target virus obtained above as a ddPCR (Droplet Digital PCR) sample and performing ddPCR.
- ddPCR Droplet Digital PCR
- the production amount of a target virus such as AAV can be more than doubled compared to conventional production methods.
- ⁇ Culture composition> An animal cell into which a foreign recombinant nucleic acid encoding a target virus has been introduced, and in which BET function is suppressed; virus and With the medium, A culture composition comprising:
- the virus is preferably an adeno-associated virus.
- the medium preferably contains a BET inhibitor (preferably a bromodomain inhibitor).
- HEK293 cells Suspended HEK293 cells (Thermo Fisher Scientific, R79007) were cultured at 1 ⁇ 10 7 cells/in 12 mL of Expi293 Expression Medium (Thermo Fisher Scientific, A1435101). The suspension was suspended in a volume of mL and cultured in a 125 mL shaking flask for 24 hours. The culture solution was incubated at 37° C. and 8% CO 2 while being constantly stirred at 120 rpm.
- HEK293 cells were seeded in a 24-well plate at a density of 0.75 x 10 5 cells/well in DMEM medium (FUJIFILM Wako Pure Chemical Corporation, 041-29775) containing 10% FBS (clontech, 631101). , adherent culture was carried out for 24 hours.
- Plasmids (seq1 and seq2) were co-introduced into HEK293 cells using TransIT-293 (Takarabio, MIR2704) reagent. After 0.5 months had elapsed, each cell was seeded in a 96-well plate, and after further expansion culture for 1 month, an AAV producer cell strain in which the plasmid was integrated into the chromosome was prepared.
- seq1 all-in-one plasmid (integrated plasmid incorporating genes necessary for AAV production).
- the Rep gene and Cap gene are controlled by the p5 promoter of wild-type AAV.
- the E2 gene is controlled by the promoter of wild-type adenovirus.
- E4ORF6 is located under the CMV promoter, and VA-RNA is located under the H1 promoter, and their expression is designed to be controlled by doxycycline by incorporating a TET operator sequence into the promoter.
- a plasmid (GENEWIZ) in which the piggyBac transposase gene sequence was synthesized and inserted into the EcoRV site of the pUC57 vector.
- the base sequence of seq1 is shown in SEQ ID NO: 1 in the sequence listing, and the base sequence of seq2 is shown in SEQ ID NO: 2 in the sequence listing.
- ⁇ Compound screening 1> The prepared AAV producer cells were seeded on a 24-well plate at 5 ⁇ 10 5 cells/mL, and after incubation for 6 hours (the number of cells was 5 ⁇ 10 5 cells/mL or more), doxycyclin (final concentration 0.5 ⁇ g/mL) was added. and Epigenetics Screening Library (CAYMAN, 11076) were added at a final concentration of 4 ⁇ mol/L. After 72 hours of treatment, cells were harvested and real-time PCR evaluation and AAV titer measurements were performed.
- HEK cells were cultured at 37° C. and 8% CO 2 for 72 hours after gene introduction, and were collected by centrifugation at 300 ⁇ g.
- mRNA was purified using RNeasy Plus Mini Kit (Qiagen), and cDNA was produced by reverse transcription using High Capacity RNA to cDNA Kit.
- the prepared cDNA was combined with primers and probes for various genes (E2: seq3, 4, 5, VA-RNA: seq 6, 7, 8, E4ORF6: seq 9, 10, 11, Rep: seq12, 13, 14, Cap: seq15, 16, 17) and detected using TaqMan Gene Expression Assay for GAPDH (Thermo Fisher Scientific, Hs02786624_g1). Quantitative evaluation was performed by standardization.
- the base sequences of seq3 to 17 are shown in SEQ ID NOs. 3 to 17 in the sequence listing, respectively.
- ⁇ AAV titer measurement> The HEK cell culture medium cultured at 37°C and 8% CO 2 for 72 hours after gene introduction was collected, and the cells were disrupted by freezing and thawing at -80°C. Thereafter, the supernatant was collected by centrifugation at 13,800 x g, and 25 U/mL Benzonase at a final concentration of 2 mmol/L MgCl 2 was added, and the reaction was performed at 37°C for 2 hours to remove gDNA (genomic DNA) and remaining plasmids. digested.
- ddPCR Droplet Digital PCR
- the ddPCR sample was diluted 50 times with a solution containing 0.05% Pluronic F-68 and 10 ⁇ g/mL calf thymus DNA in TE buffer (pH 8.0).
- droplets were formed from the prepared solution using a droplet forming device, followed by incubation at 95°C for 10 minutes, 40 cycles of 94°C for 30 seconds and 55°C, and 98°C for 10 minutes. Measurement was performed using a droplet reader, and AAV genome titer (vg/mL) was calculated.
- ⁇ Compound screening 2> The prepared AAV producer cells were seeded on a 96-well plate at 5 ⁇ 10 5 cells/mL, and after incubation for 6 hours (the number of cells was 5 ⁇ 10 5 cells/mL or more), doxycyclin (final concentration 0.5 ⁇ g/mL) was added. and Epigenetics Screening Library (CAYMAN, 11076) were added at final concentrations of 0.15, 0.45, and 1.35 ⁇ mol/L. After 72 hours of treatment, cells were harvested and AAV titers were assessed.
- Figure 3 shows the results of measuring AAV titer by ddPCR in compound screening 2.
- FIG. 4 shows the results of measuring the AAV titer by ddPCR for the following samples.
- Ctrl Sample without JQ1 added.
- 72h Sample collected after 72 hours of treatment with JQ1. Wash out: A sample that was treated with JQ1 for 24 hours, then the medium was replaced with a JQ1-free medium, and then collected 48 hours later. (The medium after replacement contains doxycyclin (final concentration 0.5 ⁇ g/mL).)
- the AAV titer per cell was further improved by removing JQ1 from the medium.
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Abstract
Description
<1> 目的ウイルスをコードする外来性組み換え核酸が導入された動物細胞を、BETの機能を抑制させた状態で培地で培養するウイルス製造工程を含む、目的ウイルスの製造方法。
<2> 上記BETの機能を抑制することによりRNAポリメラーゼIIIによる転写が促進される、<1>に記載の方法。
<3> 培地がBET阻害剤を含有することにより、上記BETの機能が抑制される、<1>又は<2>に記載の方法。
<4> BET阻害剤のBRD2、BRD3またはBRD4のいずれかに対する平衡解離定数:Kd値が150nmol/L以下である、<1>~<3>のいずれか一に記載の方法。
<5> BET阻害剤が、
(S)-(+)-tert-ブチル2-(4-(4-クロロフェニル)-2,3,9-トリメチル-6H-チエノ[3,2-f][1,2,4]トリアゾロ[4,3-a][1,4]ジアゼピン-6-イル)アセテート、
2-メトキシ-N-(3-メチル-2-オキソ-1,2,3,4-テトラヒドロ-キナゾリン-6-イル)-ベンゼンスルホンアミド、
N-[6-(3-メタンスルホンアミド-4-メチルフェニル)-3-メチル-[1,2,4]トリアゾロ[4,3-b]ピリダジン-8-イル]カルバメート、
(4S)-6-(4-クロロフェニル)-N-エチル-8-メトキシ-1-メチル-4H-[1,2,4]トリアゾロ[4,3-a][1,4]ベンゾジアゼピン-4- アセトアミド、
7,3,5-ジメチル-4-イソキサゾリル-1,3-ジヒドロ-8-メトキシ-1-[1R-1-(2-ピリジニル)エチル]-2H-イミダゾ[4,5-c]キノリン-2-オン、および
6H-チエノ[3,2-f][1,2,4]トリアゾロ[4,3-a][1,4]ジアゼピン-6-アセトアミド
からなる群のうちの少なくとも一つである、<1>~<4>のいずれか一に記載の方法。
<6> BET阻害剤が、
(S)-(+)-tert-ブチル2-(4-(4-クロロフェニル)-2,3,9-トリメチル-6H-チエノ[3,2-f][1,2,4]トリアゾロ[4,3-a][1,4]ジアゼピン-6-イル)アセテート、
2-メトキシ-N-(3-メチル-2-オキソ-1,2,3,4-テトラヒドロ-キナゾリン-6-イル)-ベンゼンスルホンアミド、
N-[6-(3-メタンスルホンアミド-4-メチルフェニル)-3-メチル-[1,2,4]トリアゾロ[4,3-b]ピリダジン-8-イル]カルバメート、および
(4S)-6-(4-クロロフェニル)-N-エチル-8-メトキシ-1-メチル-4H-[1,2,4]トリアゾロ[4,3-a][1,4]ベンゾジアゼピン-4- アセトアミド
からなる群のうちの少なくとも一つである、<1>~<5>のいずれか一に記載の方法。
<7> 培地中におけるBET阻害剤の濃度が0.01μmol/L~100μmol/Lである、<3>~<6>のいずれか一に記載の方法。
<8> 動物細胞において、上記外来性組み換え核酸が恒常発現系で発現されている、<1>~<7>のいずれか一に記載の方法。
<9> 上記外来性組み換え核酸の少なくとも一つが、RNAポリメラーゼIIIで制御されるプロモーターを含む、<1>~<8>のいずれか一に記載の方法。
<10> 上記目的ウイルスがアデノ随伴ウイルスである、<1>~<9>のいずれか一に記載の方法。
<11> 上記外来性組み換え核酸が、E2A、E4、VA-RNA、RepおよびCapをコードする核酸である、<1>~<10>のいずれか一に記載の方法。
<12> 上記RNAポリメラーゼIIIで制御されるプロモーターから転写される遺伝子がVA-RNAIである、<9>に記載の方法。
<13> 上記外来性組み換え核酸の遺伝子転写産物である少なくとも一つのRNAの発現が、BETの機能を抑制させていない状態で培養した場合と比較して10倍以上である、<1>~<12>のいずれか一に記載の方法。
<14> 上記外来性組み換え核酸が少なくともE2AおよびVA-RNAIをコードする核酸を含み、E2AとVA-RNAI遺伝子のRNA発現比率がE2A:VA-RNAI=1:1~1:10である、<1>~<13>のいずれか一に記載の方法。
<15> 動物細胞がHEK293細胞である、<1>~<14>のいずれか一に記載の方法。
<16> 上記外来性組み換え核酸のうちの少なくとも一つが、条件特異的に発現を誘導する核酸配列を含む、<1>~<15>のいずれか一に記載の方法。
<17> 条件特異的に発現を誘導する刺激を付与することにより、条件特異的に発現を誘導する、<16>に記載の方法。
<18> 条件特異的に発現を誘導する刺激が、培地がドキシサイクリンを含むことである、<1>~<17>のいずれか一に記載の方法。
<19> 培地にBET阻害剤を含む期間が1時間以上である、<1>~<18>のいずれか一に記載の方法。
<20> 製造したウイルスを回収する前に、BETの機能の抑制を停止することを含む、<1>~<19>のいずれか一に記載の方法。
<21> BET阻害剤を低減又は除去した培地で培養することにより、BETの機能の抑制を停止する、<20>に記載の方法。
<22> BET阻害剤を低減又は除去した培地で1時間以上培養する、<21>に記載の方法。
<23> 培養中に培地を供給し、供給される培地がドキシサイクリンとBET阻害剤とを含む、<1>~<22>の何れか一に記載の方法。
<24> 細胞の播種時の細胞密度が1×104cells/mL以上である、<1>~<23>のいずれか一に記載の方法。
<25> ウイルス製造工程の前に、細胞を増殖させる増殖工程を含む、<1>~<24>のいずれか一に記載の方法。
<26> ウイルス製造工程の前に、ドキシサイクリン及びBET阻害剤を含まない培地で細胞を1×104cells/mL以上になるまで培養する増殖工程を含み、ウイルス製造工程での培地がドキシサイクリン及びBET阻害剤を含む、<25>に記載の方法。
<27> ウイルス製造工程の少なくとも一部が、灌流培養である、<1>~<26>のいずれか一に記載の方法。
<28> ウイルス製造工程の期間が、24時間以上30日以下である、<1>~<27>のいずれか一に記載の方法。
<29> ウイルスを回収することを含む、<1>~<28>のいずれか一に記載の方法。
<30> 目的ウイルスをコードする外来性組み換え核酸が導入され、かつBETの機能が抑制されている動物細胞と、
ウイルスと、
培地とを、
含む培養組成物。
<31> ウイルスがアデノ随伴ウイルスである、<30>に記載の培養組成物。
<32> 培地がBET阻害剤を含む、<30>または<31>に記載の培養組成物。
プロモーターとは、RNAポリメラーゼを結合させることができ、下流のコード配列又は非コード配列の転写開始に関与するDNA制御領域/配列を意味する。
本発明の目的ウイルスの製造方法は、目的ウイルスをコードする外来性組み換え核酸が導入された動物細胞を、BETの機能を抑制させた状態で培地で培養するウイルス製造工程を含む。
ブロモドメインは、ヒストンのアセチル化リジンを認識し、制御タンパク質を集めてクロマチン構造および遺伝子発現を制御する機能が知られているタンパク質ドメインである。ヒトでは約50種類のブロモドメイン含有タンパク質が存在する。ブロモドメインを含むタンパク質としては、ブロモドメイン繰り返し配列および特異的末端配列を持つbromodomain and extra-terminalファミリータンパク質(BET)が挙げられる。BETとしては、bromodomain-containing protein 2(BRD2)、BRD3、BRD4およびBRDTが知られている。これらのタンパク質は、それぞれN末端ブロモドメインであるBromodomain1(BD1)およびBromodomain2(BD2)を有する。
(+)-JQ1(別名(S)-(+)-tert-ブチル2-(4-(4-クロロフェニル)-2,3,9-トリメチル-6H-チエノ[3,2-f][1,2,4]トリアゾロ[4,3-a][1,4]ジアゼピン-6-イル)アセテート[Cas#:1268524-70-4])、
PFI-1(別名2-メトキシ-N-(3-メチル-2-オキソ-1,2,3,4-テトラヒドロ-キナゾリン-6-イル)-ベンゼンスルホンアミド[Cas#:1403764-72-6])、
Bromosporine(別名N-[6-(3-メタンスルホンアミド-4-メチルフェニル)-3-メチル-[1,2,4]トリアゾロ[4,3-b]ピリダジン-8-イル]カルバメート[Cas#:1619994-69-2])、
I-BET762(別名(4S)-6-(4-クロロフェニル)-N-エチル-8-メトキシ-1-メチル-4H-[1,2,4]トリアゾロ[4,3-a][1,4]ベンゾジアゼピン-4- アセトアミド[Cas#:1260907-17-2])
I-BET151(別名7,3,5-ジメチル-4-イソキサゾリル-1,3-ジヒドロ-8-メトキシ-1-[1R-1-(2-ピリジニル)エチル]-2H-イミダゾ[4,5-c]キノリン-2-オン[Cas#:1300031-49-5]))、及び
OTX015(別名6H-チエノ[3,2-f][1,2,4]トリアゾロ[4,3-a][1,4]ジアゼピン-6-アセトアミド[Cas#:202590-98-5])
などが挙げられる。その他化合物として、CPI-203[Cas#:1446144-04-2]、RVX-208[Cas#:1044870-39-4]、BI-2536[Cas#:755038-02-9]、AZD 5153[Cas#:1869912-39-9]が挙げられる。
上記の中でも、(+)-JQ1、PFI-1、Bromosporine、I-BET762、I-BET151及びOTX015が好ましく、(+)-JQ1、PFI-1、Bromosporine及びI-BET762がより好ましく、(+)-JQ1、PFI-1がさらに好ましい。
ドキシサイクリンの添加時間は、1時間以上が好ましく、さらに好ましくは6時間以上、さらに好ましくは12時間以上、さらに好ましくは24時間以上、さらに好ましくは48時間以上である。
供給される培地とは、細胞培養中に添加する培地のことである。供給される培地を用いる培養方法は特に限定されないが、灌流培養が望ましい。
ドキシサイクリンとBET阻害剤(好ましくはブロモドメイン阻害剤)を作用させる期間としては、1時間以上が好ましく、さらに好ましくは6時間以上、さらに好ましくは12時間以上、さらに好ましくは24時間以上、さらに好ましくは48時間以上である。
BETの機能の抑制を停止する期間は、24~72時間が好ましい。
後記するVA-RNAは、RNAポリメラーゼIIIにより発現誘導されることが知られている。
目的ウイルスとは、外来核酸を細胞に導入して製造させるウイルスを意味する。目的ウイルスとしては、アデノ随伴ウイルス、レンチウイルス、バキュロウイルス、レトロウイルスなどが挙げられ、上記の中でもアデノ随伴ウイルスが好ましい。
Tetオンシステムにおいて、Tet operator配列は、発現を調節したいプロモーターの上流にあっても下流にあってもよい。発現をオフにしたときの発現漏れを減らすという点において、Tet operator配列は、発現調節可能なプロモーターの下流にあることが好ましい。
本発明において好ましくは、外来性組み換え核酸が、E2A、E4、VA-RNA、RepおよびCapをコードする核酸である。
本発明においてさらに好ましくは、RNAポリメラーゼIIIで制御されるプロモーターから転写される遺伝子がVA-RNAIである。
本発明における細胞の培養は、細胞の培養のための通常の条件において行うことができる。
ウイルス製造工程における細胞の播種時の細胞密度は、好ましくは1×104cells/mL以上であり、より好ましくは1×105cells/mL以上であり、さらに好ましくは1×106cells/mL以上であり、さらに好ましくは1×107cells/mL以上であり、特に好ましくは1×108cells/mL以上である。細胞の播種時の細胞密度の上限は特に限定されないが、一般的には、1×109cells/mL以下である。
CO2濃度は、一般的には3~10%CO2であり、好ましくは5~10%CO2であり、一例としては8%CO2である。
培養上清から目的ウイルスを回収する場合には、培養上清をそのまま目的ウイルスを含む試料として使用してもよいし、所望により精製してもよい。
本発明によれば、
目的ウイルスをコードする外来性組み換え核酸が導入され、かつBETの機能が抑制されている動物細胞と、
ウイルスと、
培地とを、
含む培養組成物が提供される。
本発明の培養組成物において、ウイルスは、アデノ随伴ウイルスであることが好ましい。
本発明の培養組成物において、培地は、BET阻害剤(好ましくはブロモドメイン阻害剤)を含むことが好ましい。
<細胞培養>
浮遊化HEK293細胞(Thermo Fisher Scientific, R79007)を12mLのExpi293 Expression Medium(Thermo Fisher Scientific,A1435101)で1×107cells/mLとなるように懸濁し、125mL振とうフラスコで24時間培養した。培養液は120rpmで一定に攪拌しながら、37℃、8%CO2 条件下でインキュベートを行った。
HEK293細胞を10%FBS(clontech、631101)含有DMEM培地(FUJIFILM Wako Pure Chemical Corporation、041-29775)で24wellプレートに0.75×105 cells/wellの密度で播種し、24時間接着培養を行った。プラスミド(seq1とseq2)をTransIT-293(Takarabio、MIR2704)試薬を用いてHEK293細胞に共導入した。0.5か月経過後に1細胞ごと96wellプレートに播種し、さらに1か月間の拡大培養の後、プラスミドが染色体に組み込まれたAAV producer cell株を作製した。
作製したAAV producer cellを5×105cells/mLで24wellプレートに播種し、6時間インキュベート後(細胞数は5×105cells/mL以上である)、doxycyclin(終濃度0.5μg/mL)とEpigenetics Screening Library(CAYMAN,11076)を終濃度4μmol/Lで添加した。72時間の処理後、細胞を回収し、Real-time PCRの評価およびAAV力価測定を行った。
遺伝子導入後72時間、37℃、8%CO2条件下で培養を行ったHEK細胞を300×gの遠心により回収した。RNeasy Plus Mini Kit(Qiagen)を用いてmRNAを精製し、High Capacity RNA to cDNA Kitを用いた逆転写によりcDNAを作製した。作製したcDNAはTaqMan Gene Expression Master Mix(Applied Biosystems)を用いて、各種遺伝子に対するプライマーおよびプローブ(E2:seq3,4,5、VA-RNA:seq6,7,8、E4ORF6:seq9,10,11、Rep: seq12,13,14、Cap:seq15,16,17)を用いて検出し、GAPDH(Thermo Fisher Scientific, Hs02786624_g1)に対するTaqMan Gene Expression Assayを用いた規格化によって定量評価した。seq3~17の塩基配列をそれぞれ、配列表の配列番号3~17に示す、
遺伝子導入後72時間、37℃、8%CO2条件下で培養を行ったHEK細胞培養液を回収し、-80℃での凍結融解にて細胞を破砕した。その後、13,800×gの遠心分離によって上清を回収し、終濃度2mmol/L MgCl2、25U/mL Benzonaseを添加し、37℃で2時間反応を行い、gDNA(ゲノムDNA)や残存プラスミドを消化した。反応後のサンプルは、95℃で15分、70℃で3分、40℃で3分、20℃で3分の順にインキュベーションし、Benzonaseを失活させ、これをddPCR(Droplet Digital PCR)サンプルとした。ddPCRサンプルはTE buffer(pH8.0)に対して0.05%Pluronic F-68 および10μg/mLウシ胸腺DNAを混合した溶液で50倍に希釈した。氷上でチューブにddPCRtm Supermix for Probes(no dUTP)(BIORAD社)10μL、希釈済みのddPCRサンプル2μL、プライマー(seq18、seq19、最終濃度900nmol/L)およびプローブ(seq20、最終濃度250nmol/L)、ヌクレアーゼフリーwater(Thermo Fisher Scientific,10977015)を混合して、総液量22μLに調整し、ddPCRを行った。seq18、seq19及びseq20の配列を、配列表の配列番号18~20に示す。
ddPCRにおいては、ドロップレット形成機器にて調製液からドロップレット形成し、続いて95℃で10分、94℃で30秒および55℃を40サイクル、98℃で10分の順でインキュベーションした。ドロップレットリーダーにより測定を行い、AAVゲノム力価(vg/mL)を算出した。
作製したAAV producer cellを5×105cells/mLで96wellプレートに播種し、6時間インキュベート後(細胞数は5×105cells/mL以上である)、doxycyclin(終濃度0.5μg/mL)とEpigenetics Screening Library(CAYMAN,11076)を終濃度0.15、0.45、1.35μmol/Lで添加した。72時間の処理後、細胞を回収し、AAV力価の評価を行った。
各ブロモドメイン阻害剤添加時のAAV製造量の変化を評価した。化合物スクリーニング1におけるddPCRによりAAVの力価を測定した結果を表1および図1に示し、qPCRによる遺伝子発現を表2および図2に示す。
使用したブロモドメイン阻害剤のIC50として、試薬メーカーが公表している公称の数値を表4に記載した。
以下のサンプルについて、ddPCRによりAAVの力価を測定した結果を図4に示す。
Ctrl: JQ1が未添加のサンプル。
72h: JQ1による処理を72時間行い、回収したサンプル。
Wash out: JQ1による処理を24時間した後、培地交換を行いJQ1不含の培地に置換し、さらに48時間後に回収したサンプル。(交換後の培地はdoxycyclin(終濃度0.5μg/mL)を含む。)
JQ1処理後、培地中からJQ1を除くことで細胞あたりのAAV力価がより向上した。
ATGACTCTCTTAAGGTAGCCAAATTTCCATAGGCTCCGCCCCCCTGACGAGCATCACAAAAATCGACGCTCAAGTCAGAGGTGGCGAAACCCGACAGGACTATAAAGATACCAGGCGTTTCCCCCTGGAAGCTCCCTCGTGCGCTCTCCTGTTCCGACCCTGCCGCTTACCGGATACCTGTCCGCCTTTCTCCCTTCGGGAAGCGTGGCGCTTTCTCATAGCTCACGCTGTAGGTATCTCAGTTCGGTGTAGGTCGTTCGCTCCAAGCTGGGCTGTGTGCACGAACCCCCCGTTCAGCCCGACCGCTGCGCCTTATCCGGTAACTATCGTCTTGAGTCCAACCCGGTAAGACACGACTTATCGCCACTGGCAGCAGCCACTGGTAACAGGATTAGCAGAGCGAGGTATGTAGGCGGTGCTACAGAGTTCTTGAAGTGGTGGCCTAACTACGGCTACACTAGAAGGACAGTATTTGGTATCTGCGCTCTGCTGAAGCCAGTTACCTTCGGAAAAAGAGTTGGTAGCTCTTGATCCGGCAAACAAACCACCGCTGGTAGCGGTGGTTTTTTTGTTTGCAAGCAGCAGATTACGCGCAGAAAAAAAGGATCTCAAGAAGATCCTTTGATCTTTTCTACGGGGTCTGACGCTCAGTGGAACGAAAACTCACGTTAAGGGATTTTGGTCATGAGATTATCAAAAAGGATCTTCACCTAGATCCTTTTAAATTAAAAATGAAGTTTTAAATCAATCTAAAGTATATATGAGTAAACTTGGTCTGACAGTTACCAATGCTTAATCAGTGAGGCACCTATCTCAGCGATCTGTCTATTTCGTTCATCCATAGTTGCCTGACTCCCCGTCGTGTAGATAACTACGATACGGGAGGGCTTACCATCTGGCCCCAGTGCTGCAATGATACCGCGAGACCCACGCTCACCGGCTCCAGATTTATCAGCAATAAACCAGCCAGCCGGAAGGGCCGAGCGCAGAAGTGGTCCTGCAACTTTATCCGCCTCCATCCAGTCTATTAATTGTTGCCGGGAAGCTAGAGTAAGTAGTTCGCCAGTTAATAGTTTGCGCAACGTTGTTGCCATTGCTACAGGCATCGTGGTGTCACGCTCGTCGTTTGGTATGGCTTCATTCAGCTCCGGTTCCCAACGATCAAGGCGAGTTACATGATCCCCCATGTTGTGCAAAAAAGCGGTTAGCTCCTTCGGTCCTCCGATCGTTGTCAGAAGTAAGTTGGCCGCAGTGTTATCACTCATGGTTATGGCAGCACTGCATAATTCTCTTACTGTCATGCCATCCGTAAGATGCTTTTCTGTGACTGGTGAGTACTCAACCAAGTCATTCTGAGAATAGTGTATGCGGCGACCGAGTTGCTCTTGCCCGGCGTCAATACGGGATAATACCGCGCCACATAGCAGAACTTTAAAAGTGCTCATCATTGGAAAACGTTCTTCGGGGCGAAAACTCTCAAGGATCTTACCGCTGTTGAGATCCAGTTCGATGTAACCCACTCGTGCACCCAACTGATCTTCAGCATCTTTTACTTTCACCAGCGTTTCTGGGTGAGCAAAAACAGGAAGGCAAAATGCCGCAAAAAAGGGAATAAGGGCGACACGGAAATGTTGAATACTCATACTCTTCCTTTTTCAATATTATTGAAGCATTTATCAGGGTTATTGTCTCATGAGCGGATACATATTTGAATGTATTTAGAAAAATAAACAAATAGGGGTTCCGCGCACATTTCCCCGAAAAGTGCCACCTAAATTGTAAGCGTTAATATTTTGTTAAAATTCGCGTTAAATTTTTGTTAAATCAGCTCATTTTTTAACCAATAGGCCGAAATCGGCAAAATCCCTTATAAATCAAAAGAATAGACCGAGATAGGGTTGAGTGTTGTTCCAGTTTGGAACAAGAGTCCACTATTAAAGAACGTGGACTCCAACGTCAAAGGGCGAAAAACCGTCTATCAGGGCGATGGCCCACTACGTGAACCATCACCCTAATCAAGTTTTTTGGGGTCGAGGTGCCGTAAAGCACTAAATCGGAACCCTAAAGGGAGCCCCCGATTTAGAGCTTGACGGGGAAAGCCGGCGAACGTGGCGAGAAAGGAAGGGAAGAAAGCGAAAGGAGCGGGCGCTAGGGCGCTGGCAAGTGTAGCGGTCACGCTGCGCGTAACCACCACACCCGCCGCGCTTAATGCGCCGCTACAGGGCGCGTCCCATTCGCCATTCAGGCTGCGCAACTGTTGGGAAGGGCGATCGGTGCGGGCCTCTTCGCTATTACGCCAGCTGGCGAAAGGGGGATGTGCTGCAAGGCGATTAAGTTGGGTAACGCCAGGGTTTTCCCAGTCACGACGTTACCCCACAGTGGGGCCACTAGGGTCAATTTCTGAGAACTGTCATTCTCGGAAATTGAGTAAAACGACGGCCAGTGAGCGCGCCTCGTTCATTCACGTTTTTGAACCCGTGGAGGACGGGCAGACTCGCGGTGCAAATGTGTTTTACAGCGTGATGGAGCAGATGAAGATGCTCGACACGCTGCAGAACACGCAGCTAGATTAACCCTAGAAAGATAATCATATTGTGACGTACGTTAAAGATAATCATGCGTAAAATTGACGCATGTGTTTTATCGGTCTGTATATCGAGGTTTATTTATTAATTTGAATAGATATTAAGTTTTATTATATTTACACTTACATACTAATAATAAATTCAACAAACAATTTATTTATGTTTATTTATTTATTAAAAAAAAACAAAAACTCAAAATTTCTTCTATAAAGTAACAAAACTTTTATCGAATTCCTGCAGCCCGGGGGATCCACTAGTTCTAGAGGGACAGCCCCCCCCCAAAGCCCCCAGGGATGTAATTACGTCCCTCCCCCGCTAGGGGGCAGCAGCGAGCCGCCCGGGGCTCCGCTCCGGTCCGGCGCTCCCCCCGCATCCCCGAGCCGGCAGCGTGCGGGGACAGCCCGGGCACGGGGAAGGTGGCACGGGATCGCTTTCCTCTGAACGCTTCTCGCTGCTCTTTGAGCCTGCAGACACCTGGGGGGATACGGGGAAAAGGCCTCCAAGGCCAGCTTCCCACAATAAGTTGGGTGAATTTTGGCTCATTCCTCCTTTCTATAGGATTGAGGTCAGAGCTTTGTGATGGGAATTCTGTGGAATGTGTGTCAGTTAGGGTGTGGAAAGTCCCGCGATCGCTAGCGTTTAAACTTAAGCTTGGTACCGAGCTCGGATCCACTAGTCCAGTGTGGTGGAATTCCTGCTTCGCGATGTACGGGCCAGATATACGCGTTGCCCGGGCGACCGCACCCTGTGACGAAAGCCGCCCGCAAGCTGCGCCCCTGAGTTAGTCATCTGAACTTCGGCCTGGGCGTCTCTGGGAAGTACCACAGTGGTGGGAGCGGGACTTTCCTGGTACACCAGGGCAGCGGGCCAACTACGGGGATTAAGGTTATTACGAGGTGTGGTGGTAATAGCCGCCTGTTCGAGGAGAATTCGGTTTCGGTGGGCGCGGATTCCGTTGACCCGGGATATCATGTGGGGTCCCGCGCTCATGTAGTTTATTCGGGTTGAGTAGTCTTGGGCAGCTCCAGCCGCAAGTCCCATTTGTGGCTGGTAACTCCACATGTAGGGCGTGGGAATTTCCTTGCTCATAATGGCGCTGACGACAGGTGCTGGCGCCGGGTGTGGCCGCTGGAGATGACGTAGTTTTCGCGCTTAAATTTGAGAAAGGGCGCGAAACTAGTCCTTAAGAGTCAGCGCGCAGTATTTGCTGAAGAGAGCCTCCGCGTCTTCCAGCGTGCGCCGAAGCTGATCTTCGCTTTTGTGATACAGGCAGCTGCGGGTGAGGGAGCGCAGAGACCTGTTTTTTATTTTCAGCTCTTGTTCTTGGCCCCTGCTTTGTTGAAATATAGCATACAGAGTGGGAAAAATCCTATTTCTAAGCTCGCGGGTCGATACGGGTTCGTTGGGCGCCAGACGCAGCGCTCCTCCTCCTGCTGCTGCCGCCGCTGTGGATTTCTTGGGCTTTGTCAGAGTCTTGCTATCCGGTCGCCTTTGCTTCTGTGTGACCGCTGCTGTTGCTGCCGCTGCCGCTGCCGCCGGTGCAGTAGGGGCTGTAGAGATGACGGTAGTAATGCAGGATGTTACGGGGGAAGGCCACGCCGTGATGGTAGAGAAGAAAGCGGCGGGCGAAGGAGATGTTGCCCCCACAGTCTTGCAAGCAAGCAACTATGGCGTTCTTGTGCCCGCGCCACGAGCGGTAGCCTTGGCGCTGTTGTTGCTCTTGGGCTAACGGCGGCGGCTGCTTAGACTTACCGGCCCTGGTTCCAGTGGTGTCCCATCTACGGTTGGGTCGGCGAACAGGCAGTGCCGGCGGCGCCTGAGGAGCGGAGGTTGTAGCGATGCTGGGAACGGTTGCCAATTTCTGGGGCGCCGGCGAGGGGAATGCGACCGAGGGTGACGGTGTTTCGTCTGACACCTCTTCGGCCTCGGAAGCTTCGTCTAGGCTGTCCCAGTCTTCCATCATCTCCTCCTCCTCGTCCAAAACCTCCTCTGCCTGACTGTCCCAGTATTCCTCCTCGTCCGTGGGTGGCGGCGGCGGCAGCTGCAGCTTCTTTTTGGGTGCCATCCTGGGAAGCAAGGGCCCGCGGCTGCTGATAGGGCTGCGGCGGCGGGGGGATTGGGTTGAGCTCCTCGCCGGACTGGGGGTCCAGGTAAACCCCCCGTCCCTTTCGTAGCAGAAACTCTTGGCGGGCTTTGTTGATGGCTTGCAATTGGCCAAGGATGTGGCCCTGGGTAATGACGCAGGCGGTAAGCTCCGCATTTGGCGGGCGGGATTGGTCTTCGTAGAACCTAATCTCGTGGGCGTGGTAGTCCTCAGGTACAAATTTGCGAAGGTAAGCCGACGTCCACAGCCCCGGAGTGAGTTTCAACCCCGGAGCCGCGGACTTTTCGTCAGGCGAGGGACCCTGCAGCTCAAAGGTACCGATAATTTGACTTTCGCTAAGCAGTTGCGAATTGCAGACCAGGGAGCGGTGCGGGGTGCATAGGTTGCAGCGACAGTGACACTCCAGTAGGCCGTCACCGCTCACGTCTTCCATGATGTCGGAGTGGTAGGCAAGGTAGTTGGCTAGCTGCAGAAGGTAGCAGTGACCCCAAAGCGGCGGAGGGCATTCACGGTACTTAATGGGCACAAAGTCGCTAGGAAGCGCACAGCAGGTGGCGGGCAGAATTCCTGAACGCTCTAGGATAAAGTTCCTAAAGTTTTGCAACATGCTTTGACTGGTGAAGTCTGGCAGACCCTGTTGCAGGGTTTTAAGCAGGCGTTCGGGGAAGATAATGTCCGCCAGGTGCGCGGCCACGGAGCGCTCGTTGAAGGCCGTCCATAGGTCCTTCAAGTTTTGCTTTAGCAGCTTCTGCAGCTCCTTTAGGTTGCGCTCCTCCAGGCATTGCTGCCACACGCCCATGGCCGTTTGCCAGGTGTAGCACAGAAATAAGTAAACGCAGTCGCGGACGTAGTCGCGGCGCGCCTCGCCCTTGAGCGTGGAATGAAGCACGTTTTGCCCGAGGCGGTTTTCGTGCAAAATTCCAAGGTAGGAGACCAGGTTGCAGAGCTCCACGTTGGAAATTTTGCAGGCCTGGCGCACGTAGCCCTGGCGAAAGGTGTAGTGCAACGTTTCCTCTAGCTTGCGCTGCATCTCCGGGTCAGCAAAGAACCGCTGCATGCACTCAAGCTCCACGGTAACAAGCACTGCGGCCATCATTAGCTTGCGTCGCTCCTCCAAGTCGGCAGGCTCGCGCGTCTCAAGCCAGCGCGCCAGCTGCTCATCGCCAACTGCGGGTAGGCCCTCCTCGGTTTGTTCTTGCAAGTTTGCATCCCTCTCCAGGGGTCGTGCACGGCGCACGATCAGCTCGCTCATGACTGTGCTCATAACCTTGGGGGGTAGGTTAAGTGCCGGGTAGGCAAAGTGGGTGACCTCGATGCTGCGTTTCAGCACGGCTAGGCGCGCGTTGTCACCCTCAAGTTCCACCAGCACTCCACAGTGACTTTCATTTTCGCTGTTTTCTTGTTGCAGAGCGTTTGCCGCGCGTTTCTCGTCGCGTCCAAGACCCTCAAAGATTTTTGGCACTTCGTCGAGCGAGGCGATATCAGGTATGACAGCGCCCTGCCGCAAGGCCAGCTGCTTGTCCGCTCGGCTGCGGTTGGCACGGCAGGATAGGGGTATCTTGCAGTTTTGGAAAAAGATGTGATAGGTGGCAAGCACCTCTGGCACGGCAAATACGGGGTAGAAGTTGAGGCGCGGGTTGGGCTCGCATGTGCCGTTTTCTTGGCGTTTGGGGGGTACGCGCGGTGAGAACAGGTGGCGTTCGTAGGCAAGGCTGACATCCGCTATGGCGAGGGGCACATCGCTGCGCTCTTGCAACGCGTCGCAGATAATGGCGCACTGGCGCTGCAGATGCTTCAACAGCACGTCGTCTCCCACATCTAGGTAGTCGCCATGCCTTTGGTCCCCCCGCCCGACTTGTTCCTCGTTTGCCTCTGCGTCGTCCTGGTCTTGCTTTTTATCCTCTGTTGGTACTGAGCGATCCTCGTCGTCTTCGCTTACAAAACCTGGGTCCTGCTCGATAATCACTTCCTCCTCCTCAAGCGGGGGTGCCTCGACGGGGAAGGTGGTAGGCGCGTTGGCGGCATCGGTGGAGGCGGTGGTGGCGAACTCAAAGGGGGCGGTTAGGCTGTCCTCCTTCTCGACTGACTCCATGATCTTTTTCTGCCTATAGGAGAAGGAAATGGCCAGTCGGGAAGAGGAGCAGCGCGAAACCACCCCCGAGCGCGGACGCGGTGCGGCGCGACGTCCACCAACCATGGAGGACGTGTCGTCCCCGTCGCCGTCGCCGCCGCCTCCCCGCGCGCCCCCAAAAAAGCGGCTGAGGCGGCGTCTCGAGTCCGAGGACGAAGAAGACTCGTCACAAGATGCGCTGGTGCCGCGCACACCCAGCCCGCGGCCATCGACCTCGACGGCGGATTTGGCCATTGCGTCCAAAAAGAAAAAGAAGCGCCCCTCTCCCAAGCCCGAGCGCCCGCCATCCCCAGAGGTGATCGTGGACAGCGAGGAAGAAAGAGAAGATGTGGCGCTACAAATGGTGGGTTTCAGCAACCCACCGGTGCTAATCAAGCACGGCAAGGGAGGTAAGCGCACGGTGCGGCGGCTGAATGAAGACGACCCAGTGGCGCGGGGTATGCGGACGCAAGAGGAAAAGGAAGAGTCCAGTGAAGCGGAAAGTGAAAGCACGGTGATAAACCCGCTGAGCCTGCCGATCGTGTCTGCGTGGGAGAAGGGCATGGAGGCTGCGCGCGCGTTGATGGACAAGTACCACGTGGATAACGATCTAAAGGCAAACTTCAAGCTACTGCCTGACCAAGTGGAAGCTCTGGCGGCCGTATGCAAGACCTGGCTAAACGAGGAGCACCGCGGGTTGCAGCTGACCTTCACCAGCAACAAGACCTTTGTGACGATGATGGGGCGATTCCTGCAGGCGTACCTGCAGTCGTTTGCAGAGGTAACCTACAAGCACCACGAGCCCACGGGCTGCGCGTTGTGGCTGCACCGCTGCGCTGAGATCGAAGGCGAGCTTAAGTGTCTACACGGGAGCATTATGATAAATAAGGAGCACGTGATTGAAATGGATGTGACGAGCGAAAACGGGCAGCGCGCGCTGAAGGAGCAGTCTAGCAAGGCCAAGATCGTGAAGAACCGGTGGGGCCGAAATGTGGTGCAGATCTCCAACACCGACGCAAGGTGCTGCGTGCATGACGCGGCCTGTCCGGCCAATCAGTTTTCCGGCAAGTCTTGCGGCATGTTCTTCTCTGAAGGCGCAAAGGCTCAGGTGGCTTTTAAGCAGATCAAGGCTTTCATGCAGGCGCTGTATCCTAACGCCCAGACCGGGCACGGTCACCTTCTGATGCCACTACGGTGCGAGTGCAACTCAAAGCCTGGGCATGCACCCTTTTTGGGAAGGCAGCTACCAAAGTTGACTCCGTTCGCCCTGAGCAACGCGGAGGACCTGGACGCGGATCTGATCTCCGACAAGAGCGTGCTGGCCAGCGTGCACCACCCGGCGCTGATAGTGTTCCAGTGCTGCAACCCTGTGTATCGCAACTCGCGCGCGCAGGGCGGAGGCCCCAACTGCGACTTCAAGATATCGGCGCCCGACCTGCTAAACGCGTTGGTGATGGTGCGCAGCCTGTGGAGTGAAAACTTCACCGAGCTGCCGCGGATGGTTGTGCCTGAGTTTAAGTGGAGCACTAAACACCAGTATCGCAACGTGTCCCTGCCAGTGGCGCATAGCGATGCGCGGCAGAACCCCTTTGATTTTTAAACGGCGCAGACGGCAAGGGTGGGGGGTAAATAATCACCCGAGAGTGTACAAATAAAAACATTTGCCTTTATTGAAAGTGTCTCCTAGTACATTATTTTTACATGTTTTTCAAGTGACAAAAAGAAGTGGCGCTCCTAATCTGCGCACTGTGGCTGCGGAAGTAGGGCGAGTGGCGCTCCAGGAAGCTGTAGAGCTGTTCCTGGTTGCGACGCAGGGTGGGCTGTACCTGGGGACTGTTAAGCATGGAGTTGGGTACCCCATAGAGCCCACCGCATCGAGGCTGATCAGCGGGTTTAAACGGGCCCTCTAGACTCGAGCGGCCGCCTACATGGGGGTAGAGTCATAATCGTGCATCAGGATAGGGCGGTGGTGCTGCAGCAGCGCGCGAATAAACTGCTGCCGCCGCCGCTCCGTCCTGCAGGAATACAACATGGCAGTGGTCTCCTCAGCGATGATTCGCACCGCCCGCAGCATGAGACGCCTTGTCCTCCGGGCACAGCAGCGCACCCTGATCTCACTTAAATCAGCACAGTAACTGCAGCACAGCACCACAATATTGTTCAAAATCCCACAGTGCAAGGCGCTGTATCCAAAGCTCATGGCGGGGACCACAGAACCCACGTGGCCATCATACCACAAGCGCAGGTAGATTAAGTGGCGACCCCTCATAAACACGCTGGACATAAACATTACCTCTTTTGGCATGTTGTAATTCACCACCTCCCGGTACCATATAAACCTCTGATTAAACATGGCGCCATCCACCACCATCCTAAACCAGCTGGCCAAAACCTGCCCGCCGGCTATGCACTGCAGGGAACCGGGACTGGAACAATGACAGTGGAGAGCCCAGGACTCGTAACCATGGATCATCATGCTCGTCATGATATCAATGTTGGCACAACACAGGCACACGTGCATACACTTCCTCAGGATTACAAGCTCCTCCCGCGTCAGAACCATATCCCAGGGAACAACCCATTCCTGAATCAGCGTAAATCCCACACTGCAGGGAAGACCTCGCACGTAACTCACGTTGTGCATTGTCAAAGTGTTACATTCGGGCAGCAGCGGATGATCCTCCAGTATGGTAGCGCGGGTCTCTGTCTCAAAAGGAGGTAGGCGATCCCTACTGTACGGAGTGCGCCGAGACAACCGAGATCGTGTTGGTCGTAGTGTCATGCCAAATGGAACGCCGGACGTAGTCATATTTCCTCGACGATCTCTATCACTGATAGGGAGATCTCTATCACTGATAGGGAGAGCTCTGCTTATATAGACCTCCCACCGTACACGCCTACCGCCCATTTGCGTCAATGGGGCGGAGTTGTTACGACATTTTGGAAAGTCCCGTTGATTTTGGTTCCAAAACAAACTCCCATTGACGTCAATGGGGTGGAGACTTGGAAATCCCCGTGAGTCAAACCGCTATCCACGCCCATTGATGTACTGCCAAAACCGCATCACATGGTGCACTCTCAGTACAATCATCCGTATTGGGATGCGGCCGCAATATTTGCATGTCGCTATGTGTTCTGGGAAATCACCATAAACGTGAAATCCCTATCAGTGATAGAGACTTATAAGTTCCCTATCAGTGATAGAGAACCGGTGGGCACTCTTCCGTGGTCTGGTGGATAAATTCGCAAGGGTATCATGGCGGACGACCGGGGTTCGAACCCCGGATCCGGCCGTCCGCCGTGATCCATGCGGTTACCGCCCGCGTGTCGAACCCAGGTGTGCGACGTCAGACAACGGGGGAGCGCTCCTTTTTGAATTCCACTTTGGCCGCGGCTCGAGGACATTGATTATTGACTAGTTATTAATAGTAATCAATTACGG
GGTCATTAGTTCATAGCCCATATATGGAGTTCCGCGTTACATAACTTACGGTAAATGGCCCGCCTGGCTGACCGCCCAACGACCCCCGCCCATTGACGTCAATAATGACGTATGTTCCCATAGTAACGCCAATAGGGACTTTCCATTGACGTCAATGGGTGGAGTATTTACGGTAAACTGCCCACTTGGCAGTACATCAAGTGTATCATATGCCAAGTACGCCCCCTATTGACGTCAATGACGGTAAATGGCCCGCCTGGCATTATGCCCAGTACATGACCTTATGGGACTTTCCTACTTGGCAGTACATCTACGTATTAGTCATCGCTATTACCATGGTGATGCGGTTTTGGCAGTACATCAATGGGCGTGGATAGCGGTTTGACTCACGGGGATTTCCAAGTCTCCACCCCATTGACGTCAATGGGAGTTTGTTTTGGCACCAAAATCAACGGGACTTTCCAAAATGTCGTAACAACTCCGCCCCATTGACGCAAATGGGCGGTAGGCGTGTACGGTGGGAGGTCTATATAAGCAGAGCTCGTTTAGTGAACCGTCAGATCGCCTGGAGACGCCATCCACGCTGTTTTGACCTCCATAGAAGACACCGGGACCGATCCAGCCTCCGCGGCCCCGAATTCACCATGTCTAGATTAGATAAAAGTAAAGTGATTAACAGCGCATTAGAGCTGCTTAATGAGGTCGGAATCGAAGGTTTAACAACCCGTAAACTCGCCCAGAAGCTAGGTGTAGAGCAGCCTACATTGTATTGGCACGTGCGCAACAAGCAGACTCTTATGAACATGCTTTCAGAGGCAATACTGGCGAAGCATCACACCCGTTCAGCACCGTTACCGACTGAGAGTTGGCAGCAGTTTCTCCAGGAAAATGCTCTGAGTTTCCGTAAAGCATTACTGGTCCATCGTGATGGAGCCCGATTGCATATAGGGACCTCTCCTACGCCCCCCCAGTTTGAACAAGCAGAGGCGCAACTACGCTGTCTATGCGATGCAGGGTTTTCGGTCGAGGAGGCTCTTTTCATTCTGCAATCTATCAGCCATTTTACGTTGGGTGCAGTATTAGAGGAGCAAGCAACAAACCAGATAGAAAATAATCATGTGATAGACGCTGCACCACCATTATTACAAGAGGCATTTAATATTCAGGCGAGAACCTCTGCTGAAATGGCCTTCCATTTCGGGCTGAAATCATTAATATTTGGATTTTCTGCACAGTTAGATGAAAAAAAGCATACACCCATTGAGGATGGTAATAAACCAAAAAAGAAGAGAAAGCTAGCAGTGTCAGTGACATTTGAAGATGTGGCTGTGCTCTTTACTCGGGACGAGTGGAAGAAGCTGGATCTGTCTCAGAGAAGCCTGTACCGTGAGGTGATGCTGGAGAATTACAGCAACCTGGCCTCCATGGCAGGATTCCTGTTTACCAAACCAAAGGTGATCTCCCTGTTGCAGCAAGGAGAGGATCCCTGGTAAATCGATCTGAGAACTTCAGGGTGAGTTTGGGGACCCTTGATTGTTCTTTCTTTTTCGCTATTGTAAAATTCATGTTATATGGAGGGGGCAAAGTTTTCAGGGTGTTGTTTAGAATGGGAAGATGTCCCTTGTATCACCATGGACCCTCATGATAATTTTGTTTCTTTCACTTTCTACTCTGTTGACAACCATTGTCTCCTCTTATTTTCTTTTCATTTTCTGTAACTTTTTCGTTAAACTTTAGCTTGCATTTGTAACGAATTTTTAAATTCACTTTTGTTTATTTGTCAGATTGTAAGTACTTTCTCTAATCACTTTTTTTTCAAGGCAATCAGGGTATATTATATTGTACTTCAGCACAGTTTTAGAGAACAATTGTTATAATTAAATGATAAGGTAGAATATTTCTGCATATAAATTCTGGCTGGCGTGGAAATATTCTTATTGGTAGAAACAACTACACCCTGGTCATCATCCTGCCTTTCTCTTTATGGTTACAATGATATACACTGTTTGAGATGAGGATAAAATACTCTGAGTCCAAACCGGGCCCCTCTGCTAACCATGTTCATGCCTTCTTCTCTTTCCTACAGCTCCTGGGCAACGTGCTGGTTGTTGTGCTGTCTCATCATTTTGGCAAAGAATTCACTCCTCAGGTGCAGGCTGCCTATCAGAAGGTGGTGGCTGGTGTGGCCAATGCCCTGGCTCACAAATACCACTGAGATCTTTTTCCCTCTGCCAAAAATTATGGGGACATCATGAAGCCCCTTGAGCATCTGACTTCTGGCTAATAAAGGAAATTTATTTTCATTGCAATAGTGTGTTGGAATTTTTTGTGTCTCTCACTCTAGAGCGGCCGCGGATCCAATTCTACCGGGTAGGGGAGGCGCTTTTCCCAAGGCAGTCTGGAGCATGCGCTTTAGCAGCCCCGCTGGGCACTTGGCGCTACACAAGTGGCCTCTGGCCTCGCACACATTCCACATCCACCGGTAGGCGCCAACCGGCTCCGTTCTTTGGTGGCCCCTTCGCGCCACCTTCTACTCCTCCCCTAGTCAGGAAGTTCCCCCCCGCCCCGCAGCTCGCGTCGTGCAGGACGTGACAAATGGAAGTAGCACGTCTCACTAGTCTCGTGCAGATGGACAGCACCGCTGAGCAATGGAAGCGGGTAGGCCTTTGGGGCAGCGGCCAATAGCAGCTTTGCTCCTTCGCTTTCTGGGCTCAGAGGCTGGGAAGGGGTGGGTCCGGGGGCGGGCTCAGGGGCGGGCTCAGGGGCGGGGCGGGCGCCCGAAGGTCCTCCGGAGGCCCGGCATTCTGCACGCTTCAAAAGCGCACGTCTGCCGCGCTGTTCTCCTCTTCCTCATCTCCGGGCCTTTCGACCTGCAGTTAACGCCGCCATGACCGAGTACAAGCCCACGGTGCGCCTCGCCACCCGCGACGACGTCCCCAGGGCCGTACGCACCCTCGCCGCCGCGTTCGCCGACTACCCCGCCACGCGCCACACCGTCGATCCGGACCGCCACATCGAGCGGGTCACCGAGCTGCAAGAACTCTTCCTCACGCGCGTCGGGCTCGACATCGGCAAGGTGTGGGTCGCGGACGACGGCGCCGCGGTGGCGGTCTGGACCACGCCGGAGAGCGTCGAAGCGGGGGCGGTGTTCGCCGAGATCGGCCCGCGCATGGCCGAGTTGAGCGGTTCCCGGCTGGCCGCGCAGCAACAGATGGAAGGCCTCCTGGCGCCGCACCGGCCCAAGGAGCCCGCGTGGTTCCTGGCCACCGTCGGCGTCTCGCCCGACCACCAGGGCAAGGGTCTGGGCAGCGCCGTCGTGCTCCCCGGAGTGGAGGCGGCCGAGCGCGCCGGGGTGCCCGCCTTCCTGGAGACCTCCGCGCCCCGCAACCTCCCCTTCTACGAGCGGCTCGGCTTCACCGTCACCGCCGACGTCGAGGTGCCCGAAGGACCGCGCACCTGGTGCATGACCCGCAAGCCCGGTGCCTGACCGCGTCTGGAACAATCAACCTCTGGATTACAAAATTTGTGAAAGATTGACTGGTATTCTTAACTATGTTGCTCCTTTTACGCTATGTGGATACGCTGCTTTAATGCCTTTGTATCATGCTATTGCTTCCCGTATGGCTTTCATTTTCTCCTCCTTGTATAAATCCTGGTTGCTGTCTCTTTATGAGGAGTTGTGGCCCGTTGTCAGGCAACGTGGCGTGGTGTGCACTGTGTTTGCTGACGCAACCCCCACTGGTTGGGGCATTGCCACCACCTGTCAGCTCCTTTCCGGGACTTTCGCTTTCCCCCTCCCTATTGCCACGGCGGAACTCATCGCCGCCTGCCTTGCCCGCTGCTGGACAGGGGCTCGGCTGTTGGGCACTGACAATTCCGTGGTGTTGTCGGGGAAGCTGACGTCCTTTCCATGGCTGCTCGCCTGTGTTGCCACCTGGATTCTGCGCGGGACGTCCTTCTGCTACGTCCCTTCGGCCCTCAATCCAGCGGACCTTCCTTCCCGCGGCCTGCTGCCGGCTCTGCGGCCTCTTCCGCGTCTTCGCCTTCGCCCTCAGACGAGTCGGATCTCCCTTTGGGCCGCCTCCCCGCAAAATGACCGACCAAGCGACGCCCAACCTGCCATCACGAGATTTCGATTCCACCGCCGCCTTCTATGAAAGGTTGGGCTTCGGAATCGTTTTCCGGGACGCCGGCTGGATGATCCTCCAGCGCGGGGATCTCATGCTGGAGTTCTTCGCCCACCCCAACTTGTTTATTGCAGCTTATAATGGTTACAAATAAAGCAATAGCATCACAAATTTCACAAATAAAGCATTTTTTTCACTGCATTCTAGTTGTGGTTTGTCCAAACTCATCAATGTATCTTATCATGTCTGTAGCTGATCAATTGGCGCGCCGAATTCGTTATCTGCAGAATTCGGCTTGAGCGCGCCAGCGCTCGTTCAAACCTCCCGCTTCAAAATGGAGACCCTGCGTGCTCACTCGGGCCCCCCCCCCCAGCGAGACCACATGGTGTCGCAAAATGTCGCAAAACACTCACGTGACCTCTAATACAGGACCTCCCTAACCCTATGACGTAATTCACGTCACGACTCCACCCCTCCGCCCGCTGTTTAAACGCCCGGGCTGTAGTTAATGATTAACCCGCCATGCTACTTATCTACGTAGCCATGGAAACTAGATAAGAAAGAAATACGCAGAGACCAAAGTTCAACTGAAACGAATTAAACGGTTTATTGATTAACAAGCAATTAAAGGGGTCGGGTAAGGTATCGGGTTCCGATAGGTCTGGTGGTTCTGTATTCCCCGGTGCTGTCCGGGGCAAAGTCCACAAACTGGGGGTCGTTGTAGTTGTTTGTGTACTGGATCTCTGGGTTCCACCTCTTGGAGTTTTCCTTCTTGAGCTCCCACTCCATCTCCACGGTGACCTGCCCGGTGCTGTACTGGGTGATGAAGCTGCTGACGGGCACGTCCGAGAAGCTGGTGATATTTCCGGGCACAGGCGTGTTCTTGATGAGCATCATGGGCGGTGGGTGTTTGAGTCCGAATCCGCCCATGGCCGGAGAGGGGTGAAAGTGCGCCCCCGTCTCTGGGATCTTGGCCCAGATGGGTCCTTGGAGGTACACGTCCCTCTCCATCCACACGCTGCCGGGCACGATTTCCTGGAGGTTGTACGTGCCGGTCGCGGGGGCAGTGGTGGAGCTCTGGTTGTTGGTGGCCATCTGCCCGCCGACGTTGTACGCCACGCGGTTCACCGGCTGCGTCTCGCTCTCGCTGGTGATGAGCATGTTGCCCTCGAGGTACGTGGCGGTGGTGCCCGGGTTCGCCGGCTGGCTGTTGAAGATCATAGTGTTCTCCAGGGCATAGGTGTTGCTGCCCTGGAGGTTGTTGGTCATGCCGTTCGGCTGCGGGGGCACCTGGTAACTCGCGCCCTCGAGCTCCATCCTATTGGTCGTGGCGAAGGCGCTGACACTGGCGCGGTTGACCCCGGAGCCCAGGTTCCAGCCCTGGGTTCGGCCCATGGGCCCCGGGAACCAGTTTTTGTAGGTGTTGGCGTATCTCCCGGCCAGGTTCTTGTTGAACTGGACTCCGCCAGTGTTATTTGTGCTCACGAAGCGGTACAAGTACTGGTCCACCAGCGGGTTGGCCAGCTTGAACAGGTTCTGACTGGGAGCGAAGCTGGAGTGGAAGGGCACCTCCTCAAAGTTGTAGGTAAACTCAAAGTTGTTGCCCGTTCTCAGCATCTTGCTGGGAAAGTACTCTAGGCAGAAGAAGCTGCTCCTCTCGGTGGGATTTTCTGTGTTGTCGCGGTTCAGCGTCGCGTAACCGTACTGCGGCAGCGTAAAGACCTGCGGAGGGAAGGCCGGCAGGCATCCCTCGGTCCCGTTGCCGACGACGTAGGGCAGCTGGTAGTCGTCGTCCGTAAACACTTGGACGGTGGAGGTGAGGTTGTTGGCGATGGTGGTGGTGGAGTCCTGCACCGTGACCTCTTTGACTTGAATGTTGAAGATTTTGACTCTGAGGGACCGGGGTCTGAAGCCCCAGTAGTTGTTGATGAGTCTTTGCCAGTCTCGGGGGCTCCAGTGGCTGTGGAAGCGGTTAAAGTCAAAGTACCCCCAGGGGGTGCTGTATCCAAAGTAGGCGTTGGCGTTGCTTCCGTCGACGGAGCCGCTTTTGATCTCTCGGTACTGGTGGTTGTTGTAGCTGGGCAGCACCCAGGTTCGGGTGGACTTGGTGACGACTCTGTCCCCCATCCACGTGGAATCGCAATGCCAATCTCCCGAGGCATTGCCCACTCCATCGGCACCTTGGTTATTGTCGCCCAATGGGCCGCCACCTCCCGCAGACATTGTATCAGCTCCCAAACTTGAGGCTGGTTGGGCTGGGATTTGCAGCTGCTGGGATCCGCTGGGTCCAGCTTCGGCGTCTGACGAGGTGGAAGGCTTGGAGTCCTCTTCGGTCCGAGCCTTCTTTCTTTTTGGAAAGTGGTCGTCTATCCGCTTTCCGGTAGGGGCCGTCTTAGCACCCTCTTCAACCAGGCCAAAAGGTTCGAGAACCCTTTTCTTGGCCTGAAAGACTGCCTTTCCGAGGTTTCCCCCGAAGGATGTGTCGTCGGCGAGCTTCTCCTGAAACTCGGCGTCCGCGTGGTTGTACTTGAGGTAGGGGTTGTCTCCCGCCTCAAGCTGCTCGTTGTACGAGATGTCGTGCTCTCGCGCGACCTCGTCTGCCCTGTTGACAGGCTCTCCTCGATCGAGACCGTTTCCGGGTCCGAGATAGTTATAACCAGGCAGCACAAGACCACGGGCTTGATCTTGATGCTGCTGATTGGGTTTTGGTTTCGGTGGGCCCGCTTCAAGGCCCAAAAACTCGCGAAGACCTTCACCAACTTCTTCCAACCAATCTGGAGGGTGATCAACAAAAGACATACCTGATTTAAATCATTTATTGTTCAAAGATGCAGTCATCCAAATCCACATTGACCAGATCGCAGGCAGTGCAAGCGTCTGGCACCTTTCCCATGATATGATGAATGTAGCACAGTTTCTGATACGCCTTTTTGACGACAGAAACGGGTTGAGATTCTGACACGGGAAAGCACTCTAAACAGTCTTTCTGTCCGTGAGTGAAGCAGATATTTGAATTCTGATTCATTCTCTCGCATTGTCTGCAGGGAAACAGCATCAGATTCATGCCCACGTGACGAGAACATTTGTTTTGGTACCTGTCTGCGTAGTTGATCGAAGCTTCCGCGTCTGACGTCGATGGCTGCGCAACTGACTCGCGCACCCGTTTGGGCTCACTTATATCTGCGTCACTGGGGGCGGGTCTTTTCTTGGCTCCACCCTTTTTGACGTAGAATTCATGCTCCACCTCAACCACGTGATCCTTTGCCCACCGGAAAAAGTCTTTGACTTCCTGCTTGGTGACCTTCCCAAAGTCATGATCCAGACGGCGGGTGAGTTCAAATTTGAACATCCGGTCTTGCAACGGCTGCTGGTGTTCGAAGGTCGTTGAGTTCCCGTCAATCACGGCGCACATGTTGGTGTTGGAGGTGACGATCACGGGAGTCGGGTCTATCTGGGCCGAGGACTTGCATTTCTGGTCCACGCGCACCTTGCTTCCTCCGAGAATGGCTTTGGCCGACTCCACGACCTTGGCGGTCATCTTCCCCTCCTCCCACCAGATCACCATCTTGTCGACACAGTCGTTGAAGGGAAAGTTCTCATTGGTCCAGTTTACGCACCCGTAGAAGGGCACAGTGTGGGCTATGGCCTCCGCGATGTTGGTCTTCCCGGTAGTTGCAGGCCCAAACAGCCAGATGGTGTTCCTCTTGCCGAACTTTTTCGTGGCCCATCCCAGAAAGACGGAAGCCGCATATTGGGGATCGTACCCGTTTAGTTCCAAAATTTTATAAATCCGATTGCTGGAAATGTCCTCCACGGGCTGCTGGCCCACCAGGTAGTCGGGGGCGGTTTTAGTCAGGCTCATAATCTTTCCCGCATTGTCCAAGGCAGCCTTGATTTGGGACCGCGAGTTGGAGGCCGCATTGAAGGAGATGTATGAGGCCTGGTCCTCCTGGATCCACTGCTTCTCCGAGGTAATCCCCTTGTCCACGAGCCACCCGACCAGCTCCATGTACCTGGCTGAAGTTTTTGATCTGATCACCGGCGCATCAGAATTGGGATTCTGATTCTCTTTGTTCTGCTCCTGCGTCTGCGACACGTGCGTCAGATGCTGCGCCACCAACCGTTTACGCTCCGTGAGATTCAAACAGGCGCTTAAATACTGTTCCATATTAGTCCACGCCCACTGGAGCTCAGGCTGGGTTTTGGGGAGCAAGTAATTGGGGATGTAGCACTCATCCACCACCTTGTTCCCGCCTCCGGCGCCATTTCTGGTCTTTGTGACCGCGAACCAGTTTGGCAAAGTCGGCTCGATCCCGCGGTAAATTCTCTGAATCAGTTTTTCGCGAATCTGACTCAGGAAACGTCCCAAAACCATGGATTTCACCCCGGTGGTTTCCACGAGCACGTGCATGTGGAAGTAGCTCTCTCCCTTCTCAAATTGCACAAAGAAAAGAGCCTCCGGGGCCTTACTCACACGGCGCCATTCCGTCAGAAAGTCGCGCTGCAGCTTCTCGGCCACGGTCAGGGGTGCCTGCTCAATCAGATTCAGATCCATGTCAGAATCTGGCGGCAACTCCCATTCCTTCTCGGCCACCCAGTTCACAAAGCTGTCAGAAATGCCGGGCAGATGCTCGTCAAGGTCGCTGGGGACCTTAATCACAATCTCGTAAAACCCCGGCATGGCGGCTGCGCGTTCAAACCTCCCGCTTCAAAATGGAGACCCTGCGTGCTCACTCGGGCTTAAATAGAATGGCTAGGATCCGGCCGGCCTGCAGGTGTCCTCACAGGAACGAAGTCCCTAAAGAAACAGTGGCAGCCAGGTTTAGCCCCGGAATTGACTGGATTCCTTTTTTAGGGCCCATTGGTATGGCTTTTTCCCCGTATCCCCCCAGGTGTCTGCAGGCTCAAAGAGCAGCGAGAAGCGTTCAGAGGAAAGCGATCCCGTGCCACCTTCCCCGTGCCCGGGCTGTCCCCGCACGCTGCCGGCTCGGGGATGCGGGGGGAGCGCCGGACCGGAGCGGAGCCCCGGGCGGCTCGCTGCTGCCCCCTAGCGGGGGAGGGACGTAATTACATCCCTGGGGGCTTTGGGGGGGGGCTGTCCCTCTAGAGCGGCCGCCACCGCGGTGGAGCTCCAGCTTTTGTTCCCTTTAGTGAGGGTTAATTAGATCTTAATACGACTCACTATAGGGCGAATTGGGTACCGGGCCCCCCCTCGAGGTCGACGGTATCGCCTCCAAGGCCAGCTTCCCACAATAAGTTGGGTGAATTTTGGCTCATTCCTCCTTTCTATAGGATTGAGGTCAGAGCTTTGTGATGGGAATTCTGTGGAATGTGTGTCAGTTAGGGTGTGGAAAGTCCCGCGATCGCTAGCAAACGCCAGCAACGCGGCCTTTTTACGGTTCCTGGCCTTTTGCTGGCCTTTTGCTCACATGTCCTGCAGGCAGCTGCGCGCTCGCTCGCTCACTGAGGCCGCCCGGGCAAAGCCCGGGCGTCGGGCGACCTTTGGTCGCCCGGCCTCAGTGAGCGAGCGAGCGCGCAGAGAGGGAGTGGCCAACTCCATCACTAGGGGTTCCTGCGGCCGCACGCGTGGAGCTAGTTATTAATAGTAATCAATTACGGGGTCATTAGTTCATAGCCCATATATGGAGTTCCGCGTTACATAACTTACGGTAAATGGCCCGCCTGGCTGACCGCCCAACGACCCCCGCCCATTGACGTCAATAATGACGTATGTTCCCATAGTAACGTCAATAGGGACTTTCCATTGACGTCAATGGGTGGAGTATTTACGGTAAACTGCCCACTTGGCAGTACATCAAGTGTATCATATGCCAAGTACGCCCCCTATTGACGTCAATGACGGTAAATGGCCCGCCTGGCATTATGCCCAGTACATGACCTTATGGGACTTTCCTACTTGGCAGTACATCTACGTATTAGTCATCGCTATTACCATGGTGATGCGGTTTTGGCAGTACATCAATGGGCGTGGATAGCGGTTTGACTCACGGGGATTTCCAAGTCTCCACCCCATTGACGTCAATGGGAGTTTGTTTTGCACCAAAATCAACGGGACTTTCCAAAATGTCGTAACAACTCCGCCCCATTGACGCA
AATGGGCGGTAGGCGTGTACGGTGGGAGGTCTATATAAGCAGAGCTCGTTTAGTGAACCGTCAGATCGCCTGGAGACGCCATCCACGCTGTTTTGACCTCCATAGAAGACACCGGGACCGATCCAGCCTCCGCGGATTCGAATCCCGGCCGGGAACGGTGCATTGGAACGCGGATTCCCCGTGCCAAGAGTGACGTAAGTACCGCCTATAGAGTCTATAGGCCCACAAAAAATGCTTTCTTCTTTTAATATACTTTTTTGTTTATCTTATTTCTAATACTTTCCCTAATCTCTTTCTTTCAGGGCAATAATGATACAATGTATCATGCCTCTTTGCACCATTCTAAAGAATAACAGTGATAATTTCTGGGTTAAGGCAATAGCAATATTTCTGCATATAAATATTTCTGCATATAAATTGTAACTGATGTAAGAGGTTTCATATTGCTAATAGCAGCTACAATCCAGCTACCATTCTGCTTTTATTTTATGGTTGGGATAAGGCTGGATTATTCTGAGTCCAAGCTAGGCCCTTTTGCTAATCATGTTCATACCTCTTATCTTCCTCCCACAGCTCCTGGGCAACGTGCTGGTCTGTGTGCTGGCCCATCACTTTGGCAAAGAATTGGGATTCGAACATCGATTGAATTCTGAATGGTGAGCAAGGGCGAGGAGCTGTTCACCGGGGTGGTGCCCATCCTGGTCGAGCTGGACGGCGACGTAAACGGCCACAAGTTCAGCGTGTCCGGCGAGGGCGAGGGCGATGCCACCTACGGCAAGCTGACCCTGAAGTTCATCTGCACCACCGGCAAGCTGCCCGTGCCCTGGCCCACCCTCGTGACCACCCTGACCTACGGCGTGCAGTGCTTCAGCCGCTACCCCGACCACATGAAGCAGCACGACTTCTTCAAGTCCGCCATGCCCGAAGGCTACGTCCAGGAGCGCACCATCTTCTTCAAGGACGACGGCAACTACAAGACCCGCGCCGAGGTGAAGTTCGAGGGCGACACCCTGGTGAACCGCATCGAGCTGAAGGGCATCGACTTCAAGGAGGACGGCAACATCCTGGGGCACAAGCTGGAGTACAACTACAACAGCCACAACGTCTATATCATGGCCGACAAGCAGAAGAACGGCATCAAGGTGAACTTCAAGATCCGCCACAACATCGAGGACGGCAGCGTGCAGCTCGCCGACCACTACCAGCAGAACACCCCCATCGGCGACGGCCCCGTGCTGCTGCCCGACAACCACTACCTGAGCACCCAGTCCGCCCTGAGCAAAGACCCCAACGAGAAGCGCGATCACATGGTCCTGCTGGAGTTCGTGACCGCCGCCGGGATCACTCTCGGCATGGACGAGCTGTACAAGTACTCAGATCTCGAGCTCAAGTAGGGATCCTCTAGAGTCGACCTGCAGAAGCTTGCCTCGAGCAGCGCTGCTCGAGAGATCTACGGGTGGCATCCCTGTGACCCCTCCCCAGTGCCTCTCCTGGCCCTGGAAGTTGCCACTCCAGTGCCCACCAGCCTTGTCCTAATAAAATTAAGTTGCATCATTTTGTCTGACTAGGTGTCCTTCTATAATATTATGGGGTGGAGGGGGGTGGTATGGAGCAAGGGGCAAGTTGGGAAGACAACCTGTAGGGCCTGCGGGGTCTATTGGGAACCAAGCTGGAGTGCAGTGGCACAATCTTGGCTCACTGCAATCTCCGCCTCCTGGGTTCAAGCGATTCTCCTGCCTCAGCCTCCCGAGTTGTTGGGATTCCAGGCATGCATGACCAGGCTCAGCTAATTTTTGTTTTTTTGGTAGAGACGGGGTTTCACCATATTGGCCAGGCTGGTCTCCAACTCCTAATCTCAGGTGATCTACCCACCTTGGCCTCCCAAATTGCTGGGATTACAGGCGTGAACCACTGCTCCCTTCCCTGTCCTTCTGATTTTGTAGGTAACCACGTGCGGACCGAGCGGCCGCAGGAACCCCTAGTGATGGAGTTGGCCACTCCCTCTCTGCGCGCTCGCTCGCTCACTGAGGCCGGGCGACCAAAGGTCGCCCGACGCCCGGGCTTTGCCCGGGCGGCCTCAGTGAGCGAGCGAGCGCGCAGCTGCCTGCAGGGGCGCCTGATGCGGTATTTTCTCCTTACGCATCTGTGCGGTATTTCACACCGCATACGTCGTAGCTGATCAATTGGCGCGCCGAATTCGTTAACAAGCTTTAATTAACGCGTACGATAAGCTTGATATCTATAACAAGAAAATATATATATAATAAGTTATCACGTAAGTAGAACATGAAATAACAATATAATTATCGTATGAGTTAAATCTTAAAAGTCACGTAAAAGATAATCATGCGTCATTTTGACTCACGCGGTCGTTATAGTTCAAAATCAGTGACACTTACCGCATTGACAAGCACGCCTCACGGGAGCTCCAAGCGGCGACTGAGATGTCCTAAATGCACAGCGACGGATTCGCGCTATTTAGAAAGAGAGAGCAATATTTCAAGAATGCATGCGTCAATTTTACGCAGACTATCTTTCTAGGGTTAATCTAGCTGCATCAGGATCATATCGTCGGGTCTTTTTTCCGGCTCAGTCATCGCCCAAGCTGGCGCTATCTGGGCATCGGGGAGGAAGAAGCCCGTGCCTTTTCCCGCGAGGTTGAAGCGGCATGGAAAGAGTTTGCCGAGGATGACTGCTGCTGCATTGACGTTGAGCGAAAACGCACGTTTACCATGATGATTCGGGAAGGTGTGGCCATGCACGCCTTTAACGGTGAACTGTTCGTTCAGGCCACCTGGGATACCAGTTCGTCGCGGCTTTTCCGGACACAGTTCCGGATGGTCAGCCCGAAGCGCATCAGCAACCCGAACAATACCGGCGACAGCCGGAACTGCCGTGCCGGTGTGCAGATTAATGACAGCGGTGCGGCGCTGGGATATTACGTCAGCGAGGACGGGTATCCTGGCTGGATGCCGCAGAAATGGACATGGATACCCCGTGAGTTACCCGGCGGGCGCGCTTGGCGTAATCATGGTCATAGCTGTTTCCTGCTCGTGTCCGATAACTGTAATTATCGGACATGATTGTGAAATTGTTATCCGCTCACAATTCCACACAACATACGAGCCGGAAGCATAAAGTGTAAAGCCTGGGGTGCCTAATGAGTGAGCTAACTCACATTAATTGCGTTGCGCTCACTGCCCGCTTTCCAGTCGGGAAACCTGTCGTGCCAGCTGCATTAATGAATCGGCCAACGCGCGGGGAGAGGCGGTTTGCGTATTGGGCGCTCTTCCGCTTCCTCGCTCACTGACTCGCTGCGCTCGGTCGTTCGGCTGCGGCGAGCGGTATCAGCTCACTCAAAGGCGGTAATACGGTTATCCACAGAATCAGGGGATAACGCAGGAAAGAACATGTGAGCAAAAGGCCAGCAAAAGGCCAGGAACCGTAAAAAGGCCGCGTTGCTGGCGTT
TCGCGCGTTTCGGTGATGACGGTGAAAACCTCTGACACATGCAGCTCCCGGAGACTGTCACAGCTTGTCTGTAAGCGGATGCCGGGAGCAGACAAGCCCGTCAGGGCGCGTCAGCGGGTGTTGGCGGGTGTCGGGGCTGGCTTAACTATGCGGCATCAGAGCAGATTGTACTGAGAGTGCACCATATGCGGTGTGAAATACCGCACAGATGCGTAAGGAGAAAATACCGCATCAGGCGCCATTCGCCATTCAGGCTGCGCAACTGTTGGGAAGGGCGATCGGTGCGGGCCTCTTCGCTATTACGCCAGCTGGCGAAAGGGGGATGTGCTGCAAGGCGATTAAGTTGGGTAACGCCAGGGTTTTCCCAGTCACGACGTTGTAAAACGACGGCCAGTGAATTGACGCGTATTGGGATCCTGCAGGTCGTTACATAACTTACGGTAAATGGCCCGCCTGGCTGACCGCCCAACGACCCCCGCCCATTGACGTCAATAATGACGTATGTTCCCATAGTAACGCCAATAGGGACTTTCCATTGACGTCAATGGGTGGAGTATTTACGGTAAACTGCCCACTTGGCAGTACATCAAGTGTATCATATGCCAAGTACGCCCCCTATTGACGTCAATGACGGTAAATGGCCCGCCTGGCATTATGCCCAGTACATGACCTTATGGGACTTTCCTACTTGGCAGTACATCTACGTATTAGTCATCGCTATTACCATGGTGATGCGGTTTTGGCAGTACATCAATGGGCGTGGATAGCGGTTTGACTCACGGGGATTTCCAAGTCTCCACCCCATTGACGTCAATGGGAGTTTGTTTTGGCACCAAAATCAACGGGACTTTCCAAAATGTCGTAACAACTCCGCCCCATTGACGCAAATGGGCGGTAGGCGTGTACGGTGGGAGGTCTATATAAGCAGAGCTCGTTTAGTGAACCGTCAGATCGCCTGGAGACGCCATCCACGCTGTTTTGACCTCCATAGAAGACACCGGGACCGATCCAGCCTCCGGACTCTAGAGGATCCGGTACTAGAGGAACTGAAAAACCAGAAAGTTAACTGGTAAGTTTAGTCTTTTTGTCTTTTATTTCAGGTCCCGGATCCGGTGGTGGTGCAAATCAAAGAACTGCTCCTCAGTGGATGTTGCCTTTACTTCTAGGCCTGTACGGAAGTGTTACTTCTGCTCTAAAAGCTGCGGAATTGTACCCGCGGGCCCACCATGTACCCATACGATGTTCCAGATTACGCTCTTATGGCCATGGAGGCCCGAATTCGGTCGACCATGGGTAGTTCTTTAGACGATGAGCATATCCTCTCTGCTCTTCTGCAAAGCGATGACGAGCTTGTTGGTGAGGATTCTGACAGTGAAATATCAGATCACGTAAGTGAAGATGACGTCCAGAGCGATACAGAAGAAGCGTTTATAGATGAGGTACATGAAGTGCAGCCAACGTCAAGCGGTAGTGAAATATTAGACGAACAAAATGTTATTGAACAACCAGGTTCTTCATTGGCTTCTAACAGAATCTTGACCTTGCCACAGAGGACTATTAGAGGTAAGAATAAACATTGTTGGTCAACTTCAAAGTCCACGAGGCGTAGCCGAGTCTCTGCACTGAACATTGTCAGATCTCAAAGAGGTCCGACGCGTATGTGCCGCAATATATATGACCCACTTTTATGCTTCAAACTATTTTTTACTGATGAGATAATTTCGGAAATTGTAAAATGGACAAATGCTGAGATATCATTGAAACGTCGGGAATCTATGACAGGTGCTACATTTCGTGACACGAATGAAGATGAAATCTATGCTTTCTTTGGTATTCTGGTAATGACAGCAGTGAGAAAAGATAACCACATGTCCACAGATGACCTCTTTGATCGATCTTTGTCAATGGTGTACGTCTCTGTAATGAGTCGTGATCGTTTTGATTTTTTGATACGATGTCTTAGAATGGATGACAAAAGTATACGGCCCACACTTCGAGAAAACGATGTATTTACTCCTGTTAGAAAAATATGGGATCTCTTTATCCATCAGTGCATACAAAATTACACTCCAGGGGCTCATTTGACCATAGATGAACAGTTACTTGGTTTTAGAGGACGGTGTCCGTTTAGGATGTATATCCCAAACAAGCCAAGTAAGTATGGAATAAAAATCCTCATGATGTGTGACAGTGGTACGAAGTATATGATAAATGGAATGCCTTATTTGGGAAGAGGAACACAGACCAACGGAGTACCACTCGGTGAATACTACGTGAAGGAGTTATCAAAGCCTGTGCACGGTAGTTGTCGTAATATTACGTGTGACAATTGGTTCACCTCAATCCCTTTGGCAAAAAACTTACTACAAGAACCGTATAAGTTAACCATTGTGGGAACCGTGCGATCAAACAAACGCGAGATACCGGAAGTACTGAAAAACAGTCGCTCCAGGCCAGTGGGAACATCGATGTTTTGTTTTGACGGACCCCTTACTCTCGTCTCATATAAACCGAAGCCAGCTAAGATGGTATACTTATTATCATCTTGTGATGAGGATGCTTCTATCAACGAAAGTACCGGTAAACCGCAAATGGTTATGTATTATAATCAAACTAAAGGCGGAGTGGACACGCTAGACCAAATGTGTTCTGTGATGACCTGCAGTAGGAAGACGAATAGGTGGCCTATGGCATTATTGTACGGAATGATAAACATTGCCTGCATAAATTCTTTTATTATATACAGCCATAATGTCAGTAGCAAGGGAGAAAAGGTTCAAAGTCGCAAAAAATTTATGAGAAACCTTTACATGAGCCTGACGTCATCGTTTATGCGTAAGCGTTTAGAAGCTCCTACTTTGAAGAGATATTTGCGCGATAATATCTCTAATATTTTGCCAAATGAAGTGCCTGGTACATCAGATGACAGTACTGAAGAGCCAGTAATGAAAAAACGTACTTACTGTACTTACTGCCCCTCTAAAATAAGGCGAAAGGCAAATGCATCGTGCAAAAAATGCAAAAAAGTTATTTGTCGAGAGCATAATATTGATATGTGCCAAAGTTGTTTCTGAGAGATCTCTCGAGGTACCGCGGCCGCGGGGATCCAGACATGATAAGATACATTGATGAGTTTGGACAAACCACAACTAGAATGCAGTGAAAAAAATGCTTTATTTGTGAAATTTGTGATGCTATTGCTTTATTTGTAACCATTATAAGCTGCAATAAACAAGTTATCCCAATGGCGCGCCGAGCTTGGCGTAATCATGGTCATAGCTGTTTCCTGTGTGAAATTGTTATCCGCTCACAATTCCACACAACATACGAGCCGGAAGCATAAAGTGTAAAGCCTGGGGTGCCTAATGAGTGAGCTAACTCACATTAATTGCGTTGCGCTCACTGCCCGCTTTCCAGTCGGGAAACCTGTCGTGCCAGCTGCATTAATGAATCGGCCAACGCGCGGGGAGAGGCGGTTTGCGTATTGGGCGCTGTTCCGCTTCCTCGCTCACTGACTCGCTGCGCTCGGTCGTTCGGCTGCGGCGAGCGGTATCAGCTCACTCAAAGGCGGTAATACGGTTATCCACAGAATCAGGGGATAACGCAGGAAAGAACATGTGAGCAAAAGGCCAGCAAAAGGCCAGGAACCGTAAAAAGGCCGCGTTGCTGGCGTTTTTCCATAGGCTCCGCCCCCCTGACGAGCATCACAAAAATCGACGCTCAAGTCAGAGGTGGCGAAACCCGACAGGACTATAAAGATACCAGGCGTTTCCCCCTGGAAGCTCCCTCGTGCGCTCTCCTGTTCCGACCCTGCCGCTTACCGGATACCTGTCCGCCTTTCTCCCTTCGGGAAGCGTGGCGCTTTCTCATAGCTCACGCTGTAGGTATCTCAGTTCGGTGTAGGTCGTTCGCTCCAAGCTGGGCTGTGTGCACGAACCCCCCGTTCAGCCCGACCGCTGCGCCTTATCCGGTAACTATCGTCTTGAGTCCAACCCGGTAAGACACGACTTATCGCCACTGGCAGCAGCCACTGGTAACAGGATTAGCAGAGCGAGGTATGTAGGCGGTGCTACAGAGTTCTTGAAGTGGTGGCCTAACTACGGCTACACTAGAAGAACAGTATTTGGTATCTGCGCTCTGCTGAAGCCAGTTACCTTCGGAAAAAGAGTTGGTAGCTCTTGATCCGGCAAACAAACCACCGCTGGTAGCGGTGGTTTTTTTGTTTGCAAGCAGCAGATTACGCGCAGAAAAAAAGGATCTCAAGAAGATCCTTTGATCTTTTCTACGGGGTCTGACGCTCAGTGGAACGAAAACTCACGTTAAGGGATTTTGGTCATGAGATTATCAAAAAGGATCTTCACCTAGATCCTTTTAAATTAAAAATGAAGTTTTAAATCAATCTAAAGTATATATGAGTAAACTTGGTCTGACAGTTACCAATGCTTAATCAGTGAGGCACCTATCTCAGCGATCTGTCTATTTCGTTCATCCATAGTTGCCTGACTCCCCGTCGTGTAGATAACTACGATACGGGAGGGCTTACCATCTGGCCCCAGTGCTGCAATGATACCGCGAGAACCACGCTCACCGGCTCCAGATTTATCAGCAATAAACCAGCCAGCCGGAAGGGCCGAGCGCAGAAGTGGTCCTGCAACTTTATCCGCCTCCATCCAGTCTATTAATTGTTGCCGGGAAGCTAGAGTAAGTAGTTCGCCAGTTAATAGTTTGCGCAACGTTGTTGCCATTGCTACAGGCATCGTGGTGTCACGCTCGTCGTTTGGTATGGCTTCATTCAGCTCCGGTTCCCAACGATCAAGGCGAGTTACATGATCCCCCATGTTGTGCAAAAAAGCGGTTAGCTCCTTCGGTCCTCCGATCGTTGTCAGAAGTAAGTTGGCCGCAGTGTTATCACTCATGGTTATGGCAGCACTGCATAATTCTCTTACTGTCATGCCATCCGTAAGATGCTTTTCTGTGACTGGTGAGTACTCAACCAAGTCATTCTGAGAATAGTGTATGCGGCGACCGAGTTGCTCTTGCCCGGCGTCAATACGGGATAATACCGCGCCACATAGCAGAACTTTAAAAGTGCTCATCATTGGAAAACGTTCTTCGGGGCGAAAACTCTCAAGGATCTTACCGCTGTTGAGATCCAGTTCGATGTAACCCACTCGTGCACCCAACTGATCTTCAGCATCTTTTACTTTCACCAGCGTTTCTGGGTGAGCAAAAACAGGAAGGCAAAATGCCGCAAAAAAGGGAATAAGGGCGACACGGAAATGTTGAATACTCATACTCTTCCTTTTTCAATATTATTGAAGCATTTATCAGGGTTATTGTCTCATGAGCGGATACATATTTGAATGTATTTAGAAAAATAAACAAATAGGGGTTCCGCGCACATTTCCCCGAAAAGTGCCACCTGACGTCTAAGAAACCATTATTATCATGACATTAACCTATAAAAATAGGCGTATCACGAGGCCCTTTTGTC
seq4:CTCCACTTAAACTCAGGCACAAC
seq5:CGCACCATCACCAACGC
seq6:TCCGTGGTCTGGTGGATAAATTC
seq7:GTCTGACGTCGCACACCT
seq8:TCCGCCGTGATCCATGC
seq9:TGGTTTAGGATGGTGGTGGATG
seq10:CGCAGGTAGATTAAGTGGCGA
seq11:GAGGTAATGTTTATGTCCAGCGTG
seq12:TGGGCGTGGACTAATATGGAA
seq13:CCGGCGCATCAGAATTGG
seq14:AGGAGCAGAACAAAGAGAATCAGAA
seq15:TCACCAAGTCCACCCGAAC
seq16:GCGGTTAAAGTCAAAGTACCCC
seq17:GAAGCAACGCCAACGCC
seq18:GGAACCCCTA GTGATGGAGT T
seq19:CGGCCTCAGT GAGCGA
seq20:CACTCCCTCT CTGCGCGCTC G
Claims (32)
- 目的ウイルスをコードする外来性組み換え核酸が導入された動物細胞を、BETの機能を抑制させた状態で培地で培養するウイルス製造工程を含む、目的ウイルスの製造方法。
- 前記BETの機能を抑制することによりRNAポリメラーゼIIIによる転写が促進される、請求項1に記載の方法。
- 培地がBET阻害剤を含有することにより、前記BETの機能が抑制される、請求項1又は2に記載の方法。
- BET阻害剤のBRD2、BRD3またはBRD4のいずれかに対する平衡解離定数:Kd値が150nmol/L以下である、請求項1又は2に記載の方法。
- BET阻害剤が、
(S)-(+)-tert-ブチル2-(4-(4-クロロフェニル)-2,3,9-トリメチル-6H-チエノ[3,2-f][1,2,4]トリアゾロ[4,3-a][1,4]ジアゼピン-6-イル)アセテート、
2-メトキシ-N-(3-メチル-2-オキソ-1,2,3,4-テトラヒドロ-キナゾリン-6-イル)-ベンゼンスルホンアミド、
N-[6-(3-メタンスルホンアミド-4-メチルフェニル)-3-メチル-[1,2,4]トリアゾロ[4,3-b]ピリダジン-8-イル]カルバメート、
(4S)-6-(4-クロロフェニル)-N-エチル-8-メトキシ-1-メチル-4H-[1,2,4]トリアゾロ[4,3-a][1,4]ベンゾジアゼピン-4- アセトアミド、
7,3,5-ジメチル-4-イソキサゾリル-1,3-ジヒドロ-8-メトキシ-1-[1R-1-(2-ピリジニル)エチル]-2H-イミダゾ[4,5-c]キノリン-2-オン、および
6H-チエノ[3,2-f][1,2,4]トリアゾロ[4,3-a][1,4]ジアゼピン-6-アセトアミド
からなる群のうちの少なくとも一つである、請求項1又は2に記載の方法。 - BET阻害剤が、
(S)-(+)-tert-ブチル2-(4-(4-クロロフェニル)-2,3,9-トリメチル-6H-チエノ[3,2-f][1,2,4]トリアゾロ[4,3-a][1,4]ジアゼピン-6-イル)アセテート、
2-メトキシ-N-(3-メチル-2-オキソ-1,2,3,4-テトラヒドロ-キナゾリン-6-イル)-ベンゼンスルホンアミド、
N-[6-(3-メタンスルホンアミド-4-メチルフェニル)-3-メチル-[1,2,4]トリアゾロ[4,3-b]ピリダジン-8-イル]カルバメート、および
(4S)-6-(4-クロロフェニル)-N-エチル-8-メトキシ-1-メチル-4H-[1,2,4]トリアゾロ[4,3-a][1,4]ベンゾジアゼピン-4- アセトアミド
からなる群のうちの少なくとも一つである、請求項1又は2に記載の方法。 - 培地中におけるBET阻害剤の濃度が0.01μmol/L~100μmol/Lである、請求項3に記載の方法。
- 動物細胞において、前記外来性組み換え核酸が恒常発現系で発現されている、請求項1又は2に記載の方法。
- 前記外来性組み換え核酸の少なくとも一つが、RNAポリメラーゼIIIで制御されるプロモーターを含む、請求項1又は2に記載の方法。
- 前記目的ウイルスがアデノ随伴ウイルスである、請求項1又は2に記載の方法。
- 前記外来性組み換え核酸が、E2A、E4、VA-RNA、RepおよびCapをコードする核酸である、請求項1又は2に記載の方法。
- 前記RNAポリメラーゼIIIで制御されるプロモーターから転写される遺伝子がVA-RNAIである、請求項9に記載の方法。
- 前記外来性組み換え核酸の遺伝子転写産物である少なくとも一つのRNAの発現が、BETの機能を抑制させていない状態で培養した場合と比較して10倍以上である、請求項1又は2に記載の方法。
- 前記外来性組み換え核酸が少なくともE2AおよびVA-RNAIをコードする核酸を含み、E2AとVA-RNAI遺伝子のRNA発現比率がE2A:VA-RNAI=1:1~1:10である、請求項1又は2に記載の方法。
- 動物細胞がHEK293細胞である、請求項1又は2に記載の方法。
- 前記外来性組み換え核酸のうちの少なくとも一つが、条件特異的に発現を誘導する核酸配列を含む、請求項1又は2に記載の方法。
- 条件特異的に発現を誘導する刺激を付与することにより、条件特異的に発現を誘導する、請求項16に記載の方法。
- 条件特異的に発現を誘導する刺激が、培地がドキシサイクリンを含むことである、請求項1又は2に記載の方法。
- 培地にBET阻害剤を含む期間が1時間以上である、請求項1又は2に記載の方法。
- 製造したウイルスを回収する前に、BETの機能の抑制を停止することを含む、請求項1又は2に記載の方法。
- BET阻害剤を低減又は除去した培地で培養することにより、BETの機能の抑制を停止する、請求項20に記載の方法。
- BET阻害剤を低減又は除去した培地で1時間以上培養する、請求項21に記載の方法。
- 培養中に培地を供給し、供給される培地がドキシサイクリンとBET阻害剤とを含む、請求項1又は2に記載の方法。
- 細胞の播種時の細胞密度が1×104cells/mL以上である、請求項1又は2に記載の方法。
- ウイルス製造工程の前に、細胞を増殖させる増殖工程を含む、請求項1又は2に記載の方法。
- ウイルス製造工程の前に、ドキシサイクリン及びBET阻害剤を含まない培地で細胞を1×104cells/mL以上になるまで培養する増殖工程を含み、ウイルス製造工程での培地がドキシサイクリン及びBET阻害剤を含む、請求項25に記載の方法。
- ウイルス製造工程の少なくとも一部が、灌流培養である、請求項1又は2に記載の方法。
- ウイルス製造工程の期間が、24時間以上30日以下である、請求項1又は2に記載の方法。
- ウイルスを回収することを含む、請求項1又は2に記載の方法。
- 目的ウイルスをコードする外来性組み換え核酸が導入され、かつBETの機能が抑制されている動物細胞と、
ウイルスと、
培地とを、
含む培養組成物。 - ウイルスがアデノ随伴ウイルスである、請求項30に記載の培養組成物。
- 培地がBET阻害剤を含む、請求項30または31に記載の培養組成物。
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| US20150133434A1 (en) | 2012-03-28 | 2015-05-14 | The J. David Gladstone Institutes | Compositions and Methods for Reactivating Latent Immunodeficiency Virus |
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| JP2016510039A (ja) * | 2013-02-28 | 2016-04-04 | ワシントン・ユニバーシティWashington University | ブロモドメイン阻害剤によるヒトサイトメガロウイルス感染および疾患の治療方法 |
| CN113396222A (zh) * | 2018-12-21 | 2021-09-14 | 隆萨沃克斯维尔股份有限公司 | 腺相关病毒(aav)生产细胞系和相关方法 |
| CN116096867A (zh) * | 2020-06-02 | 2023-05-09 | 詹森生物科技公司 | 用于病毒纯化的材料和方法 |
| CN111686114B (zh) * | 2020-07-16 | 2021-06-08 | 中国农业科学院兰州兽医研究所 | 化合物i-bet-762用于制备预防或治疗非洲猪瘟药物的新用途 |
| EP4015637A1 (en) * | 2020-12-21 | 2022-06-22 | CEVEC Pharmaceuticals GmbH | Producer cell line having low levels of va rna |
| KR20230142712A (ko) * | 2021-02-11 | 2023-10-11 | 론자 휴스턴, 아이엔씨. | 아데노-연관된 바이러스(aav) 생산 |
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2023
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- 2023-08-25 EP EP23857430.5A patent/EP4578943A4/en active Pending
- 2023-08-25 JP JP2024542882A patent/JPWO2024043322A1/ja active Pending
- 2023-08-25 WO PCT/JP2023/030630 patent/WO2024043322A1/ja not_active Ceased
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| US20180002699A1 (en) | 2014-10-14 | 2018-01-04 | The J. David Gladstone Institutes | Compositions and methods for reactivating latent immunodeficiency virus |
| WO2017192691A1 (en) | 2016-05-03 | 2017-11-09 | Biogen Ma Inc. | Cell culture containing bromodomain inhibitors |
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| WO2025078616A1 (en) * | 2023-10-12 | 2025-04-17 | Cevec Pharmaceuticals Gmbh | Cellular factors affecting recombinant aav production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2024043322A1 (ja) | 2024-02-29 |
| EP4578943A1 (en) | 2025-07-02 |
| EP4578943A4 (en) | 2026-02-25 |
| US20250188427A1 (en) | 2025-06-12 |
| CN120092093A (zh) | 2025-06-03 |
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