WO2021141456A1 - Mhc 및 종양 항원을 동시 발현하는 항원제시세포를 포함하는 조성물 및 이를 이용한 암 치료 - Google Patents
Mhc 및 종양 항원을 동시 발현하는 항원제시세포를 포함하는 조성물 및 이를 이용한 암 치료 Download PDFInfo
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- WO2021141456A1 WO2021141456A1 PCT/KR2021/000281 KR2021000281W WO2021141456A1 WO 2021141456 A1 WO2021141456 A1 WO 2021141456A1 KR 2021000281 W KR2021000281 W KR 2021000281W WO 2021141456 A1 WO2021141456 A1 WO 2021141456A1
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Definitions
- the present invention relates to a vaccine composition for preventing or treating cancer comprising an antigen presenting cell in which a complex of a major histocompatibility complex (MHC) and a tumor antigen is overexpressed on a cell surface, and cancer treatment using the same.
- MHC major histocompatibility complex
- An anticancer therapeutic cell vaccine for anticancer purposes is an anticancer vaccine by loading tumor antigens into specialized antigen-presenting cells, for example, dendritic cells, and administering the antigen to cancer patients. look forward to the performance of
- epitope peptide incubation method which is commonly used for antigen loading, is mechanically dependent on the complementary restriction principle (epitope-MHC restriction) of specific MHC alleles and antigenic epitopes of antigen-presenting cells,
- epitope-MHC restriction complementary restriction principle
- the range of antigen-presenting epitope sequences and the overall antigen-presenting efficacy are inevitably limited by the specific MHC allele and its expression level already expressed in antigen-presenting cells.
- One example provides a vaccine composition for preventing or treating cancer, comprising antigen presenting cells overexpressed on the cell surface in which a complex of a major histocompatibility complex (MHC) and a tumor antigen is overexpressed.
- MHC major histocompatibility complex
- Another example provides a method for treating cancer, comprising administering to a patient an antigen-presenting cell in which a complex of MHC and a tumor antigen is overexpressed on the cell surface.
- Another example provides an antigen-presenting cell in which a complex of MHC and a tumor antigen is overexpressed on the cell surface for use in the treatment of cancer.
- Another example provides the use of an antigen-presenting cell in which a complex of MHC and a tumor antigen is overexpressed on the cell surface for use in the manufacture of a medicament for the treatment of cancer.
- gene constructs that simultaneously express an MHC allele and a tumor antigen gene; an expression vector containing the gene construct; RNA transcripts transcribed from the gene construct; Or it provides a method for preparing a vaccine composition for preventing or treating cancer, comprising introducing a polypeptide generated from the gene construct, expression vector, or RNA transcript into antigen-presenting cells.
- the present invention uses a bicistronic gene construct or mRNA transcript that simultaneously and maximally expresses a patient's tumor-derived cell-specific MHC allele and a tumor antigen, in normalized specific antigen-presenting cells, "specific MHC allele" And it is based on the idea of solving the constraint factor of antigen presentation ability by the reference cell expression level.
- the tumor-derived neoantigen sequence obtained in the patient tumor analysis and the tumor-derived MHC allele of each patient are simultaneously overexpressed in antigen-presenting cells, thereby generating the maximum amount of "epitope-MHC immunostimulatory complex" into cells. Maximizes the tumor antigen presentation efficacy of antigen-presenting cells by expressing them on the surface, and by administering them to patients, ultimately triggers the proliferation and activation of patient-specific anti-cancer T cells to the maximum, and increases and maximizes the effect of new antigen-specific anti-cancer immunity want to do
- a vaccine composition for preventing or treating cancer comprising an antigen presenting cell in which a complex of a major histocompatibility complex (MHC) and a tumor antigen is overexpressed on a cell surface.
- MHC major histocompatibility complex
- an antigen-presenting cell in which a complex of MHC and a tumor antigen for use in cancer treatment is overexpressed on the cell surface.
- an antigen-presenting cell in which a complex of MHC and a tumor antigen is overexpressed on the cell surface for use in the manufacture of a medicament for cancer treatment.
- the antigen-presenting cell may be a dendritic cell.
- the antigen-presenting cell comprises: a gene construct that simultaneously expresses an MHC allele and a tumor antigen gene; an expression vector containing the gene construct; or an RNA transcript transcribed from the gene construct that simultaneously expresses an MHC allele and a tumor antigen gene; Alternatively, by including a polypeptide generated from the gene construct, expression vector, or RNA transcript, the complex of MHC and tumor antigen may be overexpressed on the cell surface.
- the MHC may be MHC class I or MHC class II.
- the gene construct may include a nucleic acid sequence of an MHC allele and a nucleic acid sequence encoding a tumor antigen.
- the nucleic acid sequence of the MHC allele may be fused with a sequence encoding beta-2-microglobulin (B2M) at its N-terminus.
- B2M beta-2-microglobulin
- the MHC allele and the tumor antigen may be derived from tumor cells of a cancer patient to be treated.
- the tumor antigen may include a tumor-associated antigen (TAA), a tumor-specific antigen (TSA), or a neoantigen derived from a tumor.
- TAA tumor-associated antigen
- TSA tumor-specific antigen
- neoantigen derived from a tumor may include a tumor-associated antigen (TAA), a tumor-specific antigen (TSA), or a neoantigen derived from a tumor.
- the tumor-derived neoantigen may include a mutation specifically expressed in cancer cells.
- the tumor-associated antigen is gp100, Melan-A/MART, MAGE-A, MAGE (melanoma antigen E), MAGE-3, MAGE-4, MAGE-A3, tyrosinase, TRP2 , NY-ESO-1, CEA (carcinogen antigen), PSA, p53, maglobin-A, survivin, Muc1 (mucin1)/DF3, metallophan stimullin-1 (metallopanstimulin-1, MPS-1), cytochrome P450 isoform 1B1, 90K/Mac-2 binding protein, Ep-CAM (MK-1), HSP-70, hTERT (TRT), LEA, LAGE-1 /CAMEL, TAGE-1, GAGE, 5T4, gp70, SCP-1, c-myc, Cyclin B1, MDM2, p62, Koc, IMP1, RCAS1, TA90, OA1, CT-7, HOM-MEL-40/SSX- 2, SSX
- the gene construct encodes (a) in the 5' to 3' direction, a promoter, 5'-UTR, a nucleic acid sequence of an MHC allele, a nucleic acid sequence of an internal ribosome entry site (IRES), and a tumor antigen and a nucleic acid sequence comprising a 3'-UTR, or (b) in the 5' to 3' direction, a promoter, a 5'-UTR, a nucleic acid sequence encoding a tumor antigen, a nucleic acid sequence of an internal ribosome entry site (IRES), a nucleic acid sequence of an MHC allele, and a 3'-UTR.
- the nucleic acid sequence of the MHC allele may be fused with a sequence encoding beta-2-microglobulin (B2M) at its N-terminus.
- the RNA transcript may be an mRNA transcript.
- the expression vector may be a bicistronic expression vector.
- the gene construct, expression vector, RNA transcript, or polypeptide may be introduced into antigen-presenting cells by electroporation.
- the antigen-presenting cells may be derived from autologous or allogeneic cancer patients.
- the vaccine may be a personalized anti-cancer vaccine.
- a gene construct that simultaneously expresses an MHC allele and a tumor antigen gene; an expression vector containing the gene construct; RNA transcripts transcribed from the gene construct;
- a method for preparing a vaccine composition for preventing or treating cancer comprising introducing a polypeptide generated from the gene construct, expression vector, or RNA transcript into antigen-presenting cells.
- FIG. 1 shows the structure of a gene construct simultaneously expressing an MHC class I allele (ORF1) and a tumor antigen (ORF2) and an mRNA transcript transcribed in vitro therefrom, according to an embodiment of the present application.
- FIGS. 2A and 2B show the entire sequence structure of a reference template "LGV1007", according to an embodiment of the present application.
- FIG. 3 shows the results of electrophoresis confirmation that mRNA transcripts were produced after in vitro transcription of the reference template "LGV1007" according to an embodiment of the present application.
- Figures 4a, 4b and 4c show that the LGV1007 mRNA transcript according to an embodiment of the present application was electroporated into K562 cells and then, in order to derive a condition in which the expression level reaches a maximum, the LGV1007 mRNA transcript is 0 per 1 X 10 6 cells. , shows the results of confirming the expression level of HLA-A*0201 molecules for 9 days after electroporation into K562 cells in an amount of 3, 5, or 10 ⁇ g.
- FIG. 5 shows the results of performing in vitro translation of the LGV1007 mRNA transcript according to an embodiment of the present application and confirming that the tumor antigen was expressed as a protein by Western blot.
- Figure 6 (a) is the result of confirming by Western blot that the MHC class I allele (ORF1) was expressed as a protein after electroporation of LGV1007 mRNA transcript into K562 cells according to an embodiment of the present application, (b) is Shows the results confirmed by Western blot that all of the tumor antigen (ORF2) was expressed as a protein.
- Figure 9 shows the structural description of the LGV1032 mRNA transcript and the cell expression results in personalized monocyte-derived dendritic cells (MoDC).
- LGV1032 has the same bicistronic transcript configuration as LGV1007, maintains ORF2 (tumor antigen part), and has a GFP reporter protein positioned on ORF1 as a cell expression marker. It was confirmed that LGV1032, like LGV1007, was effectively expressed in individual autologous dendritic cells after introduction into the cell by the electroporation method.
- An example herein relates to a nucleic acid molecule that simultaneously expresses an MHC and a tumor antigen.
- nucleic acid composition that simultaneously expresses MHC and a tumor antigen.
- RNA transcript from a gene construct that simultaneously expresses the MHC and the tumor antigen.
- an antigen-presenting cell in which a complex of MHC and a tumor antigen is overexpressed on the cell surface; And it relates to a vaccine composition for preventing or treating cancer comprising the same.
- nucleic acid refers to a DNA or RNA molecule or sequence
- nucleic acid composition refers to a nucleic acid, nucleic acid molecule, or composition comprising such a nucleic acid sequence
- gene construct refers to a nucleic acid construct operably linked such that a gene insert encoding a protein of interest is expressed.
- the gene construct may be linear or circular, or single-stranded or double-stranded DNA, cDNA, RNA, etc. encoding two or more target proteins as bicistronic transcripts.
- a gene construct may form part of a vector that can be used to transform, transfect or transfect a host, but is not limited thereto, and may itself be transcribed and/or translated in vitro.
- operably linked means that the bonds between nucleic acid sequences are functionally linked.
- a coding sequence eg, a sequence encoding a protein of interest
- a coding sequence may be operably linked with appropriate regulatory elements to enable its replication, transcription and/or translation.
- a coding sequence is operably linked to a promoter if the promoter is capable of driving transcription of the coding sequence.
- Regulatory elements need not be contiguous with the coding sequence as long as they function correctly.
- an intervening sequence that is not translated but transcribed may exist between the promoter sequence and the coding sequence, and the promoter sequence may still be considered “operably linked" to the coding sequence.
- Each component in the gene construct must be operably linked to each other, and the linking of these component sequences can be accomplished by ligation (ligation) at convenient restriction enzyme sites, and when such sites do not exist, usually It can be performed using a synthetic oligonucleotide adapter or linker according to the method of
- ribosomes can synthesize polypeptides even inside mRNA in eukaryotic cells, so that multiple polypeptides can be synthesized from one mRNA It means the system
- the gene construct was designed so that the nucleic acid sequence encoding the MHC allele and the nucleic acid sequence encoding the tumor antigen can be simultaneously expressed from one mRNA.
- prokaryotic cells have a polycistronic system capable of synthesizing several proteins at once by binding ribosomes to multiple positions of one mRNA, but eukaryotes, in principle, produce one mRNA from one promoter and the It has a monocistronic system in which only genes are translated and polypeptides are synthesized.
- the gene construct of the present application can express several polypeptides from one mRNA in a eukaryotic cell, for example, by locating each gene under a respective promoter for expression, or IRES (internal ribosome) between two genes. entry site), it is possible to simultaneously express both genes under one promoter.
- composition comprising (a given component)” can mean comprising or constituting essentially of a component other than the component described. .
- MHC major histocompatibility complex
- major histocompatibility complex refers to a protein that serves to provide antigenic fragments to immune cells so that the immune cells can differentiate between self and non-self molecules, MHC class I and MHC class
- MHC class I is found in all nuclear-bearing cells
- MHC class II is found in antigen-presenting cells. The technical idea provided herein is applicable to both MHC class I or MHC class II.
- the adaptive immune response when a pathogen or antigen enters the body, antigen-presenting cells ingest it and break it down into short peptide fragments, and the peptide binds to MHC class I or MHC class II molecules within the cell and binds to the cell. can be transported to the surface.
- T cells when peptides of pathogens or antigens bind to MHC class I or MHC class II and are presented on the cell surface of antigen-presenting cells, T cells recognize them through the T cell receptor (TCR) and are activated and initiate an immune response.
- TCR T cell receptor
- the peptide of the pathogen or antigen corresponds to an "epitope" of a T cell.
- Human MHC is called human leukocyte antigen (HLA), and MHC class I (or HLA class I) molecules include HLA-A, HLA-B and HLA-C.
- MHC class I molecules are composed of an alpha polypeptide chain and a beta-2-microglobulin. MHC class I molecules interact with CD8+ cytotoxic T cells and play an important role in organ transplant rejection or destruction of infected cells.
- MHC class II (or HLA class II) molecules include HLA-DR, HLA-DQ and HLA-DP.
- MHC class II molecules consist of an alpha polypeptide chain and a beta polypeptide chain. MHC class II molecules play an important role in eliciting cellular immunity by recognizing non-self antigens through interaction with CD4+ helper T cells.
- the gene encoding MHC is a gene showing severe polymorphism, and a plurality of alleles exist to induce an immune response to various pathogens or antigens.
- the number of HLA class I alleles has been reported to be more than 18,000 as of January 2020, and the number of HLA class II alleles has been reported to be more than 7,000.
- HLA-A 5,735, HLA-B 7,053, HLA-C 5,653, HLA-DRB1 2,676, HLA-DQB1 1,771, HLA-DPB1 1,519, etc. were reported (www.ebi.ac.uk /imgt/hla/).
- Relatively frequent alleles include HLA-A*2402, HLA-A*3303, HLA-A*0201, HLA-A*1101, HLA-A*0206, HLA-A*3101, HLA-A*0207, HLA-A*2601, HLA-A*2602, HLA-A*3001, HLA-A*0101, HLA-A*3004, HLA-A*0203, HLA-A*0301, HLA-A*0205, HLA- A*0215N, HLA-A*2408, HLA-A*2420, HLA-A*2610, HLA-A*2901, HLA-A*2603, HLA-A*3201, HLA-B*5101, HLA-B* 1501, HLA-B*4403, HLA-B*3501, HLA-B*5801, HLA-B*4601, HLA-B*5401, HLA-B*1302, HLA-B*2705, HLA-B*0702, HLA-B*4006, H
- the MHC allele is an MHC class I allele or an MHC class II allele.
- the MHC allele is from a tumor of the subject patient.
- the gene construct comprises a nucleic acid sequence of an MHC allele and a nucleic acid sequence encoding a tumor antigen.
- a nucleic acid sequence encoding an MHC allele can be fused at its N-terminus with a sequence encoding B2M (beta-2-microglobulin), which is expressed at the cell surface when the MHC allele is expressed in antigen-presenting cells.
- B2M beta-2-microglobulin
- the human B2M gene encodes a protein of 119 amino acids with 20 N-terminal amino acids encoding a leader sequence.
- a mature protein contains 99 amino acids.
- the gene contains 4 exons and 3 introns, the first exon contains the 5' untranslated region, the entire leader sequence and the first two amino acids of the mature polypeptide; the second exon encodes most of the mature protein; the third exon encodes the last four amino acids and a stop codon of the mature protein; The fourth exon contains a 3' non-translated region.
- the stability of the peptide on the MHC molecule can be increased by fusion with B2M, and the structural stability on the cell surface when expressed in antigen-presenting cells can be increased.
- the sequence encoding B2M may include all or part of a nucleic acid residue corresponding to the entire human beta-2-microglobulin gene.
- tumor antigen or “cancer antigen” refers to an antigen expressed in a tumor (cancer) and a molecule that elicits an immune response. Such an immune response may involve the production of antibodies, or the activation of certain immunologically-competent cells, or both.
- Tumor antigens can be derived from tumor-bearing organisms, killed or inactivated whole tumor cells, or lysates, and include any antigen derived from a tumor. Lysate refers to a substance resulting from the application of a process that causes the division of the normal structure of a cell. Tumor antigen also includes any protein or other substance with antigenic properties that is included in tumor cells and expressed differently than in normal cells.
- tumor antigens include Tumor-associated antigen (TAA) and Tumor-specific antigen (TSA).
- TAA Tumor-associated antigen
- TSA Tumor-specific antigen
- Tumor-associated antigen is an antigen that is expressed more in cancer cells than in normal cells or at a different stage of differentiation from normal cells, and is a tumor shared antigen that is present in a small amount even in normal cells. Therefore, the immune response using this is highly likely to be disrupted by autotolerance, which is an immunosuppressive mechanism to prevent damage to own cells, or, conversely, unwanted organs may be attacked by autoimmunity.
- tumor-associated antigens examples include gp100, Melan-A/MART, MAGE-A, MAGE (melanoma antigen E), MAGE-3, MAGE-4, MAGE-A3, tyrosinase, TRP2, NY -ESO-1, CEA (carcinogen antigen), PSA, p53, Mamaglobin-A, Survivin, Muc1 (mucin1)/DF3, metallopanstimulin-1 -1, MPS-1), cytochrome P450 isoform 1B1, 90K/Mac-2 binding protein, Ep-CAM (MK-1), HSP-70, hTERT (TRT), LEA, LAGE-1/CAMEL , TAGE-1, GAGE, 5T4, gp70, SCP-1, c-myc, Cyclin B1, MDM2, p62, Koc, IMP1, RCAS1, TA90, OA1, CT-7, HOM-MEL-40/SSX-2, SSX-1, SSX-4, HOM
- Tumor-specific antigen refers to an antigen that is specifically present only in cancer cells.
- TSA Tumor-specific antigen
- neoantigens include cancer cell-specific gene mutations, and are selectively expressed only in cancer cells, unlike tumor-shared antigens, which are expressed in a trace amount even in normal cells, so that they are non-self-external epitopes (non-self-external epitopes) -self foreign epitope) and induces strong anticancer immune activity.
- the receptor (TCR) of the T cell recognizes it. Since mutation does not occur in normal cells or tissues, the new antigen-specific T cells are self-reliant. Free from tolerance or autoimmune problems. Because of these advantages, new antigens are considered as ideal targets for T-cell-based cancer immunotherapy.
- the causes of the occurrence of new antigens include frame-shift deletion or insertion, in which one or more nucleotides constituting DNA are added or deleted, which deviates from the decoding of the genetic code, and the substitution of one nucleotide with another.
- New antigens are predicted through genome analysis of specific cancer cells of individual cancer patients. For example, DNA is extracted from cancer cells from the patient's tumor, DNA is extracted, and the nucleotide sequence is analyzed and compared with the nucleotide sequence of normal cells to determine the area where the mutation occurred. After selection, a new antigen that stimulates T cells can be identified among the nucleotide sequences of various mutations. This includes processing of big data such as next gene sequencing (NGS), whole-exome sequencing (WES) or RNA sequencing, MHC binding prediction computer program, or prediction of new antigens. For example, artificial intelligence (AI) may be used, but is not limited thereto. Since mutations are not shared between patients, the new antigen can be produced as a personalized cancer vaccine.
- NGS next gene sequencing
- WES whole-exome sequencing
- RNA sequencing MHC binding prediction computer program
- AI artificial intelligence
- the new antigen can be produced as a personalized cancer vaccine.
- APCs antigen-presenting cells
- dendritic cells which capture and degrade antigens, then load them onto MHC molecules and display them on the surface. It can induce the activity of specific T lymphocytes.
- Gene constructs may include transcriptional and translational expression control sequences that allow the gene of interest to be expressed in the host of choice.
- Expression control sequences may include a promoter for effecting transcription, an optional operator sequence for regulating such transcription, and/or sequences regulating the termination of transcription and translation.
- the start codon and stop codon are generally considered part of the nucleic acid sequence encoding the protein of interest, and must be functional in the subject when the genetic construct is administered and must be in frame with the coding sequence.
- a gene construct may include (a) in 5' to 3' direction, a promoter, a 5'-UTR, a nucleic acid sequence encoding an MHC allele, a nucleic acid sequence of an internal ribosome entry site (IRES), encoding a tumor antigen and a nucleic acid sequence comprising a 3'-UTR, or (b) in the 5' to 3' direction, a promoter, a 5'-UTR, a nucleic acid sequence encoding a tumor antigen, a nucleic acid sequence of an internal ribosome entry site (IRES), a nucleic acid sequence encoding an MHC allele, and a 3'-UTR.
- promoter refers to a DNA sequence site to which transcriptional regulators bind, and for the purpose of the present invention, a promoter capable of inducing strong and stable gene expression can be used to increase gene expression rate.
- Promoters may be constitutive or inducible. Promoters include, but are not limited to, early and late promoters of adenovirus, simian virus 40 (SV40), mouse mammary tumor virus (MMTV) promoter, long terminal repeat (LTR) promoter of HIV, Moloney virus, cytomegalo Virus (CMV) promoter, Epstein virus (EBV) promoter, Loose Sacoma virus (RSV) promoter, RNA polymerase ⁇ promoter, T3 and T7 promoters, major operator and promoter regions of phage lambda, and the like can be exemplified.
- SV40 simian virus 40
- MMTV mouse mammary tumor virus
- LTR long terminal repeat
- CMV cytomegalo Virus
- ESV Epstein virus
- RSV Loose Sacoma virus
- 5'-UTR untranslated region
- 5'-UTR refers to a region present at the 5'-terminus of an mRNA transcript but not translated into amino acids. In genomic sequences, the 5'-UTR is generally defined as the region between the transcription start site and the initiation codon.
- the 5'-UTR of vertebrate mRNA can range from tens to hundreds of bases in length. The translation of mRNA into protein begins with the binding of the 30S subunit of the ribosome to 5'-UTR.
- 16S rRNA (16S ribosomal RNA) in the 30S subunit of the ribosome binds to the ribosome binding site (RBS) of 5'-UTR
- tRNA recognizes and binds to the start codon (AUG) of mRNA. Translation into protein begins.
- the ribosome binding site and the initiation codon of 5'-UTR are approximately 6 to 8 nucleotides apart, and in the ribosome binding site there is a sequence complementary to the sequence at the 3' end of 16S rRNA, which is Dalgarno) sequence.
- IRES internal ribosome entry site
- IRES internal ribosome entry site
- ribosome entry site refers to a nucleotide sequence recognized by the ribosome as the start of the translation process when the transcript is translated. That is, IRES is a specific region that exists inside mRNA to which ribosomes directly bind to enable the synthesis of several polypeptides from one mRNA in eukaryotic cells, and plays a role in enabling the gene construct of the present application to become bicistronic. do.
- the polypeptide coding sequence located on the 5' side of the IRES is translated from the cap structure at the 5' end, and the polypeptide coding sequence located on the other side of the IRES is translated by attaching a ribosome subunit to the IRES. Therefore, it is possible to separately obtain several polypeptides.
- the IRES may be obtained from nature or synthetically, and may be derived from a virus such as poliovirus or EMC virus, or may be derived from a cell such as an immunoglobulin heavy chain binding protein (BiP) or an antenna gene (Antp) of Drosophila, but is not limited thereto. does not
- 3'-UTR untranslated region
- 3'-untranslated region refers to a region present at the 3'-terminus of an mRNA transcript but not translated into amino acids.
- the gene construct may be an adapter or linker, an enhancer, a selectable marker (eg, an antibiotic resistance marker), a replication unit, a polyA sequence, a tag for purification (eg, GST, poly-Arg, FLAG, histidine-tag (His- tag) or c-my, etc.) or other sequences of construction and induction known to regulate the expression of genes in prokaryotic or eukaryotic cells or viruses thereof, and various combinations thereof, as appropriate.
- a selectable marker eg, an antibiotic resistance marker
- a replication unit e.g, a polyA sequence, a tag for purification (eg, GST, poly-Arg, FLAG, histidine-tag (His- tag) or c-my, etc.) or other sequences of construction and induction known to regulate the expression of genes in prokaryotic or eukaryotic cells or viruses thereof, and various combinations thereof, as appropriate.
- RNA transcript transcribed from the aforementioned gene construct which simultaneously expresses an MHC allele and a tumor antigen.
- RNA transcripts are bicistronic in that MHC alleles and tumor antigens can be simultaneously translated and synthesized from the RNA transcript.
- the RNA transcript may be an mRNA transcript, and the above-described gene construct may be transcribed in a cell and then isolated and purified, but preferably, it may be transcribed in vitro by an in vitro transcription method.
- the present application also relates to a bicistronic expression vector comprising said gene construct.
- vector refers to a genetic construct comprising essential regulatory elements operably linked to express a gene insert encoding a target protein in a cell of an individual, and includes a plasmid, a viral vector, a bacteriophage vector, and a cozmid.
- vectors can be used.
- each component of the expression vector and the RNA transcript is replaced with a description of each component of the above-described gene construct.
- Another example herein relates to a polypeptide, produced from the gene construct, an expression vector comprising the gene construct, or an RNA transcript transcribed from the gene construct.
- Another example of the present application is the above-described gene construct; an expression vector containing the gene construct; RNA transcripts transcribed from the gene construct; or a composition for simultaneously expressing an MHC allele and a tumor antigen, comprising a polypeptide produced from said gene construct, expression vector or RNA transcript.
- the present application also includes the gene construct; an expression vector containing the gene construct; RNA transcripts transcribed from the gene construct; or or to an antigen-presenting cell comprising a polypeptide produced from the gene construct, expression vector or RNA transcript.
- the present application also includes the gene construct, an expression vector comprising the gene construct, an RNA transcript transcribed from the gene construct; Or it relates to a method for preparing a vaccine composition for preventing or treating cancer, comprising introducing a polypeptide generated from the gene construct, expression vector, or RNA transcript into antigen-presenting cells.
- antigen presenting cell refers to any cell that achieves the purpose herein by promoting enhancement of an immune response to an antigen (eg, a tumor antigen).
- Antigen-presenting cells include dendritic cells (DCs), macrophages, or B cells.
- Antigen-presenting cells may be derived from autologous or allogeneic cancer patients.
- autologous refers to cells obtained from an individual and used to treat the same individual, and "allogenic" refers to cells obtained from another individual of the same species.
- Dendritic cells are the body's most effective antigen-presenting cell type, capable of phagocytosing foreign antigens and presenting them to naive (CD4+ or CD8+ T) and memory T cells.
- Dendritic cells generally take up antigens by micropigmentation and/or phagocytosis, then intracellularly process these antigens and present the antigens to T cells of the immune system. This processing usually occurs within the body, but by isolating dendritic cells from the body, culturing them in vitro, presenting antigen to the in vitro cultured dendritic cells, and then interacting with the cells with T cells. It is possible to return to the body capable of eliciting an increased immune response to the antigen of interest. This process of presenting the antigen to dendritic cells is generally referred to as loading or pulsing or co-culture.
- dendritic cell progenitors are obtained from a subject patient or allogeneic or heterogeneous individual and differentiated into dendritic cells, and then the above-described gene construct, RNA transcript, expression vector, or polypeptide may be introduced.
- dendritic cells can be obtained by differentiation of monocytes isolated from the blood of a subject to be vaccinated. Techniques for the differentiation of dendritic cells from monocytes are well established in the art. As a non-limiting example, in a typical protocol, peripheral blood mononuclear cells (PBMCs) can be isolated from whole blood by density gradient centrifugation, and isolating monocytes from PBMCs utilizes the adherence of monocytes or uses immuno-autologous beads.
- PBMCs peripheral blood mononuclear cells
- the isolated monocytes can be cultured in the presence of GM-CSF and IL-4 to differentiate into immature dendritic cells.
- Immature dendritic cells can be cultured in the presence of a maturation factor, typically a TLR-4 agonist, such as LPS, or cultured using a monocyte maturation cocktail comprising TNF ⁇ , IL-6, IL-1 ⁇ and PGE2 to be matured. Maturation of dendritic cells and vector introduction can be performed simultaneously.
- RNA transcript, or expression vector into a cell can be accomplished by suitable standard techniques, as is known in the art, for example, electroporation, electroinjection, microinjection. ), calcium phosphate co-precipitation, calcium chloride/rubidium chloride method, retroviral infection, DEAE-dextran, cationic liposome method, polyethylene A glycol precipitation method (polyethylene glycol-mediated uptake), a gene gun (gene gun), etc. may be used, but the present invention is not limited thereto.
- the circular structure can be cut with an appropriate restriction enzyme and introduced in a linear form.
- a gene construct, RNA transcript, expression vector or polypeptide can be introduced by electroporation.
- Electroporation refers to the application of an electric current or an electric field to a cell to facilitate entry of an impermeable material into the cell. For example, if a cell is suspended in a solution containing an impermeable substance to be introduced (eg, nucleic acid, vector vector, etc.) and a pulse of DC high voltage is passed through it, a hole is made in the cell membrane by electricity, and A permeable substance may be introduced into the cell.
- the electroporation device may be a static type electroporation device or a flow type electroporation device.
- a stationary type electroporation device comprises a specialized cuvette comprising an electrode embedded in a fluid in contact with a fixed amount of target cells. A molecule of interest is placed between two electrodes and pulsed with a high voltage.
- Another example relates to a vaccine composition for preventing or treating cancer, including the above-described gene construct, RNA transcript, expression vector, or polypeptide, and a method for preparing the same.
- Another example relates to a vaccine composition for preventing or treating cancer, including the antigen-presenting cell into which the above-described gene construct, RNA transcript, expression vector, or polypeptide is introduced, and a method for preparing the same.
- Another example relates to a vaccine composition for preventing or treating cancer, comprising antigen-presenting cells in which a complex of an MHC allele and a tumor antigen is overexpressed on the cell surface, and a method for preparing the same.
- the term "vaccine” refers to a formulation containing the antigen-presenting cells according to the present application and in a form that can be administered to a subject. Therefore, the vaccine composition of the present invention can be conveniently used to prevent, ameliorate, or treat diseases. After introduction into a subject or host, the vaccine is capable of eliciting an immune response including, but not limited to, the production of antibodies, cytokines and/or other cellular responses.
- the MHC allele and the tumor antigen may be derived from tumor cells of a cancer patient to be treated to which the composition is administered.
- the cancer vaccine composition of the present invention can overexpress the tumor antigen sequence obtained in the patient tumor analysis, particularly the neoantigen sequence and the tumor-derived MHC allele of each patient simultaneously in antigen-presenting cells (APC), whereby the maximum amount
- APC antigen-presenting cells
- the antigen-presenting cells included in the cancer vaccine composition of the present disclosure may simultaneously overexpress the MHC allele and the tumor antigen, whereby the MHC allele and the tumor antigen bind to the antigen-presenting cells.
- Antigens can be presented to T lymphocytes by expressing them on the surface, and if T lymphocytes are activated through this, strong cancer-specific cytotoxic T lymphocytes (CTLs) are induced to destroy cancer cells, thereby immunologically treating cancer. have.
- CTLs cancer-specific cytotoxic T lymphocytes
- costimulatory substances abundantly expressed in antigen-presenting cells e.g., dendritic cells
- T lymphocyte receptors and antigen-MHC conjugates e.g., T lymphocyte receptors and antigen-MHC conjugates
- cytokines involved in T lymphocyte differentiation, growth, or influx Since it can regulate the activity of immune response by secreting it, it can be usefully used for anticancer immunotherapy.
- the vaccine compositions herein may also include additional adjuvants that enhance the effectiveness of the vaccine.
- Suitable adjuvants include (1) aluminum salts (alum) such as aluminum hydroxide, aluminum phosphate, aluminum sulfate, and the like; (2) oil-in-water emulsion formulations (with or without certain immunostimulatory agents such as muramyl peptides or bacterial cell wall components), such as (a) 5% squalene formulated into submicron particles, 0.5% Tween 80 and 0.5% span 85 (not required but optionally varying amounts of N-acetylmuramyl-L-alanyl-D-isoglutaminyl-L-alanine-2-(1',2'-dipalmitoyl-) MF59 (WO90/14837) containing sn-glycero-3-hydroxyphosphoryloxy)-ethylamine (MTP-PE), (b) microfluidized to sub-micron particles or large particle size 10% squalene
- Vaccine compositions may include conventional saline or buffered aqueous solution media suspended or dissolved.
- it may typically contain diluents such as water, saline, glycerol, ethanol, and the like, and auxiliary substances such as wetting agents, emulsifying agents, pH buffering agents and the like may be present in the composition.
- Forms suitable for injection include sterile aqueous solutions (aqueous) or dispersions and sterile powders for the extemporaneous preparation of sterile injectable solutions or dispersions. They must be stable under the conditions of manufacture and must be preserved against contamination of microorganisms such as bacteria or fungi. Contamination of microorganisms can be prevented by using various antibacterial and antifungal agents, for example, parabens, chlorobutanol, phenol, sorbic acid, thimerosal, and the like. In many cases, it is preferred to include isotonic agents, for example, sugars or sodium chloride. Prolonged absorption of the injectable composition may be made possible by the use in the composition of an agent which delays absorption, for example, aluminum monostearate or gelatin.
- a buffer solution such as PBS
- sterile injectable solution is prepared by sterilizing by filtration.
- dispersions are prepared by incorporating the various sterilized active ingredients into a sterile vehicle which contains a basic dispersion medium and the required other ingredients from those described above.
- the preferred preparation methods are vacuum drying and freeze drying techniques. This technique obtains a powder of the active ingredient and any desired ingredient from a sterile-filtered solution thereof as described above.
- the delivery of dendritic cells according to the present invention is particularly useful for inducing an immune response, in particular for inducing a response of cytotoxic T-lymphocytes to an antigen.
- the immune response may be specific (T cells and/or B cells) and/or non-specific immune responses.
- another aspect of the present invention relates to a method for generating, inducing, or promoting an immune response to an antigen in a human, particularly a cancer patient, wherein the method comprises an effective amount of the vaccine composition or antigen-presenting cell as described above. including administering to cancer patients.
- the immune response preferably includes a cytotoxic T-lymphocyte response, and the cytotoxic lymphocyte response of the present invention may occur in conjunction with or independently of a helper T-cell response, a humoral response or other specific or non-specific immune response. .
- Another aspect of the invention relates to the use of the dendritic cells of the invention in connection with the treatment and/or prevention of a disease state.
- diseases that can be treated according to the method of the present invention include various cancer diseases and intractable cancer diseases.
- the cancer may be a solid cancer or a blood cancer, including but not limited to breast cancer, lung cancer, prostate cancer, ovarian cancer, brain cancer, liver cancer, cervical cancer, endometrial cancer, uterine cancer, colon cancer, colorectal cancer, colorectal cancer , rectal cancer, kidney cancer, nephroblastoma, skin cancer, oral squamous cell carcinoma, epidermal cancer, nasopharyngeal cancer, head and neck cancer, bone cancer, esophageal cancer, bladder cancer, lymphatic cancer (eg Hodgkin's lymphoma or non-Hodgkin's lymphoma), stomach cancer, Pancreatic cancer, testicular cancer, thyroid cancer, thyroid follicular cancer, melanoma, myeloma, multiple myeloma, mesothelioma, osteosarcoma, myelodysplastic syndrome, tumor of mesenchymal origin, soft tissue sarcoma, liposarcoma
- the lung cancer may be, for example, small cell lung carcinoma (SCLC) or non-small cell lung carcinoma (NSCLC).
- the leukemia can be, for example, acute myeloid leukemia (AML), chronic myelogenous leukemia (CML), acute lymphocytic leukemia (ALL) or chronic lymphocytic leukemia (CLL).
- the subject being treated may be a subject receiving second-line anti-hyperproliferative therapy.
- the second-line anti-hyperproliferative therapy may be chemotherapy, radiation therapy, immunotherapy, phototherapy, cryotherapy, toxin therapy, hormone therapy, or surgery.
- another aspect of the present invention provides a method of treating cancer by enhancing a tumor-specific immune response using the cancer vaccine composition. wherein the administration of the composition elicits, induces, or otherwise promotes an immune response that inhibits, stops, delays, or prevents the onset or progression of a disease state.
- Direct delivery of the composition can generally be systemic, subcutaneous, intradermal, intraperitoneal, intravascular (intravenous), intramuscular, or local delivery, or delivered into an interstitial tissue.
- the composition may also be administered to a lesion.
- the dosing regimen may be a single dose or a multiple dose schedule.
- an effective amount means an amount sufficient to achieve the desired result, eg, an amount effective to treat or prevent cancer, when administered to a subject, including a human.
- the effective amount may vary depending on factors such as the disease state, age, sex, and weight of the individual. Dosage or therapeutic regimen can be adjusted to provide an optimal therapeutic response as will be understood by those skilled in the art.
- a therapeutic regimen for a subject with a therapeutically effective amount may consist of a single administration or, alternatively, may include a series of applications.
- the duration of the treatment phase depends on various factors such as the severity of the disease, the age of the individual, the concentration of the cancer vaccine, the patient's responsiveness to the cancer vaccine, or a combination thereof. It will also be appreciated that the effective dosage of the cancer vaccine used for treatment may be raised or lowered over the course of an individual therapeutic regimen. Variations in dosage may occur and will be apparent through standard diagnostic assays known in the art.
- the cancer vaccines of the present invention may be administered before, during or after treatment with conventional anticancer agents, radiation therapy, hormone therapy, biotherapy, and/or surgical resection of the tumor.
- the bicistronic vector for simultaneously expressing the tumor antigen is configured as shown in FIG. 1, and specifically, 5'UTR-ORF1 (recombinant B2M and MHC class I alleles comprising a fusion in the 5' to 3' direction, respectively. open reading frame; specifically, the coding sequence of a fusion protein comprising a B2M at the N-terminus and a tumor-derived MHC class I allele at the C-terminus) -IRES - ORF2 (multiple antigens with a beads-on-a-string structure) coding sequence of a recombinant protein composed of a sexual epitope) - contains a gene construct of 3'UTR.
- 5'UTR-ORF1 recombinant B2M and MHC class I alleles comprising a fusion in the 5' to 3' direction, respectively. open reading frame; specifically, the coding sequence of a fusion protein comprising a B2M at the N-terminus and a tumor-derived
- the reference template (Reference template) is named "LGV1007", the signal sequence in the N-terminal to C-terminal direction as ORF1, B2M and HLA-A*0201 It encodes a fusion protein (SEQ ID NO: 1) and a coding sequence of a covalent antigen recombinant protein (SEQ ID NO: 2) including NY-ESO1, MAGE-A3, SURVIVIN, MULTI-MAGE-A, and MELAN-A as ORF2.
- the entire sequence structure of the LGV1007 is as shown in FIG.
- LGV1007 is only a representative example according to an embodiment of the present application, and the base sequence of ORF1 and ORF2 may be changed to include a self-derived sequence customized according to individual cancer patients as described above, and ORF1 and Base sequences other than ORF2 can be optimized and standardized for antigen presentation using sequences well known in the art.
- the bicistronic vector (DNA plasmid vector) obtained in Example 1 above was linearized by digestion with restriction enzyme Xbal, and the linearized DNA was obtained from the Expin TM combo GP kit ( GeneAll, 112-102).
- the purified linearized plasmid template was used for in vitro transcription (IVT) mRNA production using the mMessage mMachine TM T7 Ultra transcription kit (ThermoFisher), according to the manufacturer's instructions.
- the resulting mRNA transcripts were finally purified using LiCl precipitation.
- the mRNA product was mixed lightly with LiCl precipitation solution (50 ⁇ L per 20 ⁇ L of IVT reaction) and incubated at -20°C for at least 30 minutes. Next, the samples were spun down by centrifugation at 20,000 ⁇ g for 14 min at 4°C. The pellet was then washed with 70% ethanol. The final mRNA product was resuspended in deionized water without nuclease. The amount of mRNA product was measured using Nanodrop2000.
- the mRNA transcript obtained in item 2 above was transferred to human cells using cell electroporation.
- K562 human bone marrow derived lymphoblastic leukemia cells (ATCC CCL-243 TM ) were electroporated using an AmaxaTM 4D-Nucleofector TM X Unit device and a SF Cell Line Nucleofector TM Solution (Lonza), according to the manufacturer’s protocol.
- K562 cells were freshly isolated at 3 X 10 5 cells/ml two days before electroporation. On the day of electroporation, cells were counted and the required number of cells (1 ⁇ 2 X 10 6 cells) was prepared at room temperature.
- Figure 4 shows the LGV1007 mRNA transcript in an amount of 0, 3, 5, or 10 ⁇ g per 1 X 10 6 cells in order to derive conditions for reaching the maximum expression level after electroporation of the LGV1007 mRNA transcript into K562 cells.
- This maximal overexpression of the non-antigen-presenting cell i.e., tumor-specific individual patient
- MHC-I allele has the effect of substantially unifying the MHC-I phenotype of the specific antigen-presenting cell to the patient's tumor, resulting in an individual patient It can be expected to maximize the activation of anti-cancer immune T cells.
- the LGV1007 template DNA plasmid was transferred into a single tube using the TnT Quick Coupled Transcription/Translation Kit (Promega) or the 1-Step Human High-Yield Mini IVT Kit (Thermo Scientific). It was used for in vitro transcription/in vitro translation reactions and followed the manufacturer's manual. The reaction volume was scaled down from 100 ⁇ l to 25 ⁇ l.
- reaction mixture was incubated at 30°C for 60-90 minutes, and in the case of the 1-Step Human High-Yield Mini IVT kit (Thermo Scientific), the reaction time was 6-16 hours. .
- FIG. 5 shows the result of confirming by Western blot that in vitro translation of the LGV1007 mRNA transcript was performed and a Flag-tagged polyantigen recombinant protein was generated.
- Figure 6 is the result of confirming by Western blot that both MHC class I allele (ORF1) and tumor antigen (ORF2) were expressed as proteins after electroporation of LGV1007 mRNA transcript into K562 cells, ORF1 (B2M-HLA-A* 0201) protein was confirmed to have a size of ⁇ 51 kDa (Fig. 6a), and ORF2 (tumor antigen fusion protein) was confirmed to be expressed at an expected size of ⁇ 30 kDa (Fig. 6b). However, since the tumor antigen fusion protein is rapidly degraded by the proteasome upon cell expression, it was confirmed that it was clearly expressed only by the in vitro translation method.
- Flow cytometry was performed with an Intellicyt iQue TM Screener PLUS (Sartorius) flow cytometer. Specifically, 24-72 hours or up to 2 weeks after nucleofection, LGV series mRNA electroporated K562 cells were collected and centrifuged at 300 x g for 5 minutes. The cell pellet was resuspended in flow cytometry buffer (DPBS containing 1% FBS and 2 mM EDTA). For cell staining, APC conjugated-mouse anti-human HLA-A2 (BD Pharmigen) was added at the recommended concentration and then cells were stained by incubation for 30 minutes to 1 hour in the dark and room temperature. After staining incubation, cells were pelleted and resuspended in PBS. Flow cytometry results were analyzed with Intellicyt ForeCyt software (Sartorius).
- K562apc antigen-presenting cells In K562apc antigen-presenting cells, a comparison of the superiority of immune activity efficacy between the conventional antigen loading method, peptide pulse, and RNA antigen loading, was tested. Specifically, on day 1, K562apc cells electroporated with LGV1007 mRNA transcripts (included five antigen sequences: SURVIVIN, MART1, NYESO1, MAGEA3, MULTIMAGE) prepared in Example 3 and a reference antigen (SURVIVIN 9 amino acids peptide) ) ELISPOT IFN ⁇ immune activity comparison experiments were performed with mounted K562apc cells or non-peptide-treated K562apc control cells.
- LGV1007 mRNA transcripts included five antigen sequences: SURVIVIN, MART1, NYESO1, MAGEA3, MULTIMAGE
- SURVIVIN 9 amino acids peptide SURVIVIN 9 amino acids peptide
- PBMC Peripheral blood mononuclear cell
- PBMC Purified PBMC
- APC Peripheral blood mononuclear cell
- T cells 100 ⁇ L/well of T cells and 100 ⁇ L APCs/well were added (mixed in a ratio of 2:1 to 10:1 T cells vs. APC) and the cell mixture was incubated at 37° C. for 24 hours.
- the culture medium was replaced with 10 U/mL IL-2 and 5 ng/mL IL-15 and re-supplemented with IL-2 after 7 days.
- IFN ⁇ secreting T cells were analyzed by ELISPOT IFN ⁇ protocol (BD Bioscience) and according to the manufacturer's instructions.
- PBMC T cell activation assay was performed by directly counting positive spots by observation with a dissecting microscope or automatically counting positive spots using an ELISPOT plate reader.
- FIG. 8 shows the results of an ELISPOT IFN ⁇ secretion assay measuring the immune activity of PBMC T cells by K562 antigen-presenting cells electroporated with LGV1007 mRNA transcripts.
- K562 antigen-presenting cells activated through electroporation with reference RNA, LGV1007, primed and activated PBMC CD8+ T cells bearing the homologous MHC class I allele (HLA-A*0201), thereby identifying positive spots that secrete IFN ⁇ . there was.
- CD8 T cells derived from the heterologous MHC class I allele (non-HLA-A*0201) used as controls were not primed by APCs.
- the LGV RNA antigen loading method effectively carried out antigen loading and antigen presentation not only in K562apc, which was technically optimized in the laboratory, but also in personalized autologous dendritic cells with various MHC class I and class II, extracted and cultured from each patient. An experiment was conducted to verify whether antigen-specific immune cell activation was effectively conducted, and the results are shown in FIGS. 9 and 10 .
- LGV1032 has the same bicistronic transcript configuration as LGV1007 (Example 1) and maintains ORF2 (tumor antigen part), but has a structure in which ORF1 is a GFP reporter protein as a cell expression marker. Therefore, the manufacturing method of LGV1032 is the same as that of LGV1007. As a result of the flow cytometry analysis as described above, it was confirmed that LGV1032, like LGV1007, was effectively expressed in individual autologous dendritic cells after introduction into the cells by the electroporation method.
- LGV1032 electroporated with individual-derived autologous dendritic cells (MoDC) effectively triggers antigen-specific T-cell immune activity.
- LGV1032 electroporated autologous dendritic cells (FIG. 10, Rows 3 & 4) were compared to autologous dendritic cells (FIG. 10, Row 2) loaded with peptide antigen, which is a traditional method, MART1 antigen-specific TCRe T cells It was clearly verified by ELISPOT IFN ⁇ secretion spot enhancement that it triggers activation quite effectively.
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Abstract
Description
Claims (16)
- MHC (major histocompatibility complex) 및 종양 항원의 복합체가 세포 표면에 과발현된 항원제시세포 (antigen presenting cell)를 포함하는,암 예방 또는 치료용 백신 조성물.
- 제1항에 있어서,상기 항원제시세포가 수지상 세포(dendritic cell)인, 조성물.
- 제1항에 있어서, 상기 항원제시세포는,MHC 대립유전자(allele) 및 종양 항원 유전자를 동시에 발현하는 유전자 컨스트럭트;상기 유전자 컨스트럭트를 포함하는 발현 벡터; 또는상기 유전자 컨스트럭트로부터 전사된, MHC 대립유전자 및 종양 항원 유전자를 동시에 발현하는 RNA 전사체; 또는상기 유전자 컨스트럭트, 발현 벡터 또는 RNA 전사체로부터 생성된 폴리펩티드를 포함함으로써MHC 및 종양 항원의 복합체가 세포 표면에 과발현된 것인, 조성물.
- 제1항에 있어서, MHC 는 MHC 클래스 I 또는 MHC 클래스 II 인, 조성물.
- 제3항에 있어서,상기 유전자 컨스트럭트가 MHC 대립유전자의 핵산 서열 및 종양 항원을 코딩하는 핵산 서열을 포함하는 것인, 조성물.
- 제5항에 있어서,MHC 대립유전자의 핵산 서열이 그 N-말단에 베타-2-마이크로글로불린(B2M)을 코딩하는 서열과 융합된 것인, 조성물.
- 제3항에 있어서,MHC 대립유전자 및 종양 항원이 치료대상 암 환자의 종양세포에서 유래한 것인, 조성물.
- 제1항에 있어서,종양 항원이 종양-관련 항원(Tumor-associated antigen; TAA), 종양-특이적 항원(Tumor-specific antigen; TSA) 또는 종양유래 신항원(neoantigen)을 포함하는, 조성물.
- 제8항에 있어서,종양유래 신항원(neoantigen)이 암 세포에 특이적으로 발현되는 돌연변이를 포함하는 것인, 조성물.
- 제8항에 있어서,종양-관련 항원(TAA)은 gp100, Melan-A/MART, MAGE-A, MAGE (흑색종 항원 E), MAGE-3, MAGE-4, MAGE-A3, 티로시나아제, TRP2, NY-ESO-1, CEA (암배아 항원), PSA, p53, 마마글로빈-A(Mammaglobin-A), 서바이빈(Survivin), Muc1(뮤신1)/DF3, 메탈로판스티뮬린-1(metallopanstimulin-1, MPS-1), 시토크롬 P450 이소형(isoform) 1B1, 90K/Mac-2 결합 단백질, Ep-CAM (MK-1), HSP-70, hTERT (TRT), LEA, LAGE-1/CAMEL, TAGE-1, GAGE, 5T4, gp70, SCP-1, c-myc, 사이클린 B1, MDM2, p62, Koc, IMP1, RCAS1, TA90, OA1, CT-7, HOM-MEL-40/SSX-2, SSX-1, SSX-4, HOM-TES-14/SCP-1, HOM-TES-85, HDAC5, MBD2, TRIP4, NY-CO-45, KNSL6, HIP1R, Seb4D, KIAA1416, IMP1, 90K/Mac-2 결합 단백질, MDM2, NY-ESO-1, 또는 LMNA인, 조성물.
- 제3항에 있어서, 상기 유전자 컨스트럭트가,(a) 5' 에서 3' 방향으로, 프로모터, 5'-UTR, MHC 대립유전자의 핵산 서열, IRES (internal ribosome entry site)의 핵산 서열, 종양 항원을 코딩하는 핵산 서열, 및 3'-UTR 을 포함하거나,(b) 5' 에서 3' 방향으로, 프로모터, 5'-UTR, 종양 항원을 코딩하는 핵산 서열, IRES (internal ribosome entry site)의 핵산 서열, MHC 대립유전자의 핵산 서열, 및 3'-UTR 을 포함하는, 조성물.
- 제11항에 있어서,MHC 대립유전자의 핵산 서열이 그 N-말단에 베타-2-마이크로글로불린(B2M)을 코딩하는 서열과 융합된 것인, 조성물.
- 제3항에 있어서,상기 RNA 전사체가 mRNA 전사체인, 조성물.
- 제3항에 있어서,상기 발현 벡터가 바이시스트로닉 발현 벡터인, 조성물.
- 제3항에 있어서,상기 유전자 컨스트럭트, 발현 벡터, RNA 전사체, 또는 폴리펩티드가 전기천공법으로 항원제시세포에 도입된 것인, 조성물.
- 제1항에 있어서,상기 항원제시세포가 암 환자의 자가(autologous) 또는 동종(allogenic) 유래인, 조성물.
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CA3164306A CA3164306A1 (en) | 2020-01-10 | 2021-01-08 | Composition comprising antigen-presenting cell co-expressing mhc and tumor antigen, and cancer treatment using same |
CN202180008428.9A CN115397993A (zh) | 2020-01-10 | 2021-01-08 | 包含共表达mhc和肿瘤抗原的抗原呈递细胞的组合物和使用所述组合物的癌症疗法 |
EP21738954.3A EP4089170A4 (en) | 2020-01-10 | 2021-01-08 | COMPOSITION COMPRISING A CELL PRESENTING AN ANTIGEN CO-EXPRESSING A MAJOR HISTOCOMPATIBILITY COMPLEX (MHC) AND A TUMOR ANTIGEN AND CANCER TREATMENT USING THE SAME |
AU2021205179A AU2021205179A1 (en) | 2020-01-10 | 2021-01-08 | Composition comprising antigen-presenting cell co-expressing MHC and tumor antigen, and cancer treatment using same |
US17/791,685 US20230338530A1 (en) | 2020-01-10 | 2021-01-08 | Composition comprising antigen-presenting cell co-expressing mhc and tumor antigen, and cancer treatment using same |
JP2022542022A JP2023509527A (ja) | 2020-01-10 | 2021-01-08 | Mhcおよび腫瘍抗原を同時発現する抗原提示細胞を含む組成物およびこれを用いた癌治療 |
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