WO2024140709A1 - 靶向b7-h3的抗体或抗体片段、以及其在嵌合抗原受体免疫细胞疗法领域的应用 - Google Patents
靶向b7-h3的抗体或抗体片段、以及其在嵌合抗原受体免疫细胞疗法领域的应用 Download PDFInfo
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- G01N2333/70532—B7 molecules, e.g. CD80, CD86
Definitions
- B7-H3 belongs to the B7 protein family, and normal tissues do not express or express low levels of B7-H3.
- B7-H3 is expressed in a variety of tumor tissues (more than 60% of tumors express B7-H3), including pancreatic cancer (positive rate 77.8%), colorectal cancer (positive rate 63.8%), gastric cancer (positive rate 69.2%), lung cancer (positive rate 69.5%), prostate cancer (positive rate 93%), ovarian cancer (positive rate 73.1%), etc. It is also highly expressed in a variety of rare tumors. Therefore, it has also been called a "tumor-associated antigen" and is a pan-tumor universal drug target with great potential [1] .
- B7-H3 is widely expressed in tumor tissues and low in healthy tissues, as well as the function of B7-H3 in the tumor microenvironment, the clinical therapeutic potential of B7-H3 has attracted much attention.
- mAbs including neutralizing antibodies, antibody-drug conjugates (ADCs), bispecific antibodies, antibody-dependent cell-mediated cytotoxicity (ADCC), NK cell adapter-linked antibodies, etc.
- Neutralizing antibodies can be used to block the binding of ligands and receptors, blocking signal transduction and thus affecting related cell functions. Blocking B7-H3 signals with neutralizing antibodies can release the functions of immune cells affected by B7-H3 signals and enhance their anti-tumor ability. Its therapeutic potential has been demonstrated in a variety of solid tumors, including ovarian cancer, melanoma, and colorectal cancer [3-5] .
- ADCs are drugs that are conjugated with antibodies that specifically recognize antigens and small molecule drugs with cytotoxicity. They have the characteristics of good specificity, good safety, and high efficiency in killing tumor cells.
- a research team has demonstrated the effectiveness of ADC drugs targeting B7-H3 in multiple solid tumor models and its safety in primates [6] .
- Bispecific antibodies combine two antibodies targeting different targets.
- Bispecific antibodies targeting both B7-H3 and CD3 have been clinically approved for the treatment of solid tumors (clinical trial No: NCT03406949). This bispecific antibody can recruit activated T cells to B7-H3-positive tumor tissues, helping T cells to recognize and kill tumor cells.
- Linking an antibody targeting B7-H3 with an NK cell receptor (CD16) antibody can promote NK cells’ recognition and killing of B7-H3-positive tumor cells.
- Some teams have also made further modifications, linking an interleukin-15 (IL15) protein to the CD16 antibody and the B7-H3 antibody.
- IL15 can further promote the activity of NK cells. This antibody-protein complex has achieved very good results in the treatment of solid tumors in vitro and in model animals [8] .
- the ninth aspect of the present invention provides a chimeric antigen receptor as described in the eighth aspect of the present invention, comprising: the antibody or antibody fragment of the seventh aspect, and a transmembrane region fused to the carboxyl terminus of the antibody or antibody fragment.
- variable region of heavy chain in this specification refers to the approximately 110 amino acid residues near the amino terminus (N-terminus) of the heavy chain.
- the composition and arrangement of the amino acid residues in this section vary greatly.
- Homology in this specification refers to the high ratio of amino acid or nucleotide matching shown by comparing the target amino acid sequence or target nucleotide sequence with the reference sequence. Homology in this specification can be determined using standard software such as BLAST or FASTA.
- the “constant region” in this specification refers to the region of the antibody near the C-terminal amino acid sequence that is relatively stable. It includes the "light chain constant region” and the “heavy chain constant region”, which respectively refer to the region of the antibody light chain near the C-terminal amino acid sequence that is relatively stable and the region of the antibody heavy chain near the C-terminal amino acid sequence that is relatively stable.
- hinge region refers to the hydrophilic region between the antigen recognition domain and the transmembrane domain.
- the hinge region can use the hinge region of various antibodies or antigen receptors, in particular the hinge region of CD molecules.
- the hinge region can be selected from, for example, CD4, CD8 ⁇ , CD28, IgG1, IgG4.
- the CD8 ⁇ hinge region is used.
- sequence of the hinge region examples include:
- CD3z SEQ ID NO: 26 :
- membrane protein refers to a protein that is fully or partially inserted into various membrane structures (including cell membrane, mitochondrial membrane, endoplasmic reticulum membrane, nuclear membrane and other membrane structures); secretory protein refers to a protein that is secreted outside the cell after protein synthesis; intracellular protein refers to all proteins present inside the cell membrane, including free proteins in the cytoplasm, and also membrane proteins on the membranes of various intracellular organelles; small molecule drugs refer to chemically synthesized drugs with a molecular weight of less than 1000, which can be connected to other proteins or molecular drugs through connecting arms; cytotoxic drugs refer to drugs that have toxic effects on cells or specific cells, including but not limited to alkaloid drugs (such as paclitaxel), metabolic drugs (such as decitabine), antibiotics (such as idarubicin), alkylating agents (such as ifosfamide) and platinum agents (such as
- examples include CD40L, CXCR5, CXCR3, 4-1BB, ICOS, OX40, CD27, NKG2D, etc.; as secretory proteins, examples include IL2, IL15, IL4, IL7, IL10, IL18, IFN ⁇ , IL1 ⁇ , antibodies (such as anti-PD1 antibodies, anti-CTLA4 antibodies, etc.); as small molecule drugs, examples include FITC/folic acid, rapamycin, Rimiducid, PROTAC compounds, Dasatinib, etc.; as cytotoxic drugs, examples include paclitaxel, vinorelbine, doxetine, etc.
- Tasai hydroxycamptothecin, gemcitabine, cytarabine, tegafur, methotrexate, epirubicin, pirarubicin, idarubicin, mitomycin, mitoxantrone, ifosfamide, dacarbazine, cisplatin, oxaliplatin, etc.
- nucleic acid molecule refers to a biomolecule compound formed by the polymerization of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA). Its constituent unit is a nucleotide, and a nucleotide monomer is composed of a pentose, a phosphate group, and a nitrogenous base.
- encoding as used herein when applied to a nucleic acid sequence means that a polynucleotide "encoding" a polypeptide can be transcribed and/or translated to produce mRNA for the polypeptide and/or its fragments in its natural state or when manipulated by methods well known to those skilled in the art.
- autologous or allogeneic refers to “autologous cells” or “allogeneic cells”.
- autologous cells refer to cells derived from the same individual and then re-administered to the individual;
- allogeneic cells refer to cells derived from outside the autologous body.
- the cells in the present invention include T cells, B cells, NK cells, macrophages, monocytes, dendritic cells, neutrophils, basophils, eosinophils, mast cells, NK-T cells, MAIT cells, hematopoietic stem cells, embryonic stem cells, induced pluripotent stem cells, and erythrocytes, and T cells include ⁇ T cells, ⁇ T cells, and regulatory T cells. In a preferred embodiment of the present invention, ⁇ T cells are used.
- the pharmaceutically acceptable carrier in the pharmaceutical composition can be any conventionally used pharmaceutically acceptable carrier, and those skilled in the art can select a suitable pharmaceutically acceptable carrier according to chemical-physical conditions and administration routes.
- the pharmaceutically acceptable carrier described in this specification may be, for example, a vehicle, an adjuvant, an excipient, and a diluent.
- the pharmaceutically acceptable carrier is preferably a carrier that is chemically inert to the active agent and has no harmful side effects or toxicity under the conditions of use.
- the "subject" in this specification refers to a mammal.
- the subject of the present invention refers to any subject afflicted with cancer or at risk of being afflicted with cancer, preferably a human being.
- therapeutically effective amount refers to a sufficient amount of the antibody or antibody fragment, chimeric antigen receptor, nucleic acid molecule, vector, cell, or pharmaceutical composition of the invention to treat a B7-H3 positive disease (e.g., to limit growth or slow or block tumor metastasis) at a reasonable benefit/risk ratio applicable to any medical treatment.
- a B7-H3 positive disease e.g., to limit growth or slow or block tumor metastasis
- the total daily dosage of the antibody or antibody fragment, chimeric antigen receptor, nucleic acid molecule, vector, cell, or pharmaceutical composition of the invention will be determined by the attending physician within the scope of reasonable medical judgment.
- the specific therapeutically effective dosage level for any particular subject will depend on a variety of factors, including the condition being treated and the severity of the condition, the activity of the specific agent used, the specific combination used, the age, weight, general health, sex and diet of the subject, the time of administration, the route of administration and the excretion rate of the specific agent used, the duration of treatment, drugs used in combination or concurrently with the specific agent used, and similar factors known in the medical field.
- the detection kit of the present invention is a kit for detecting B7-H3, and the kit generally contains components commonly used in such a kit, such as a pH buffer, a stabilizer, and operating instructions, instructions for detecting B7-H3 and other ancillary materials.
- EGFRt EGFRt
- EGFRt domain III and domain IV of wild-type EGFR.
- the truncated EGFR has no intracellular signal and will not transmit other signals to T cells.
- these two domains are the recognition epitopes of cetuximab. After expressing this epitope on T cells, it can be used as a screening marker for CAR-T and also add a safety switch for clinical research.
- Inducers (such as cetuximab) can specifically bind to EGFRt, and cause apoptosis of CAR-T cells by antibody-dependent cell-mediated cytotoxicity, so that CAR-T cells in the body can be cleared at any time.
- the "flexible linker peptide chain” in this specification refers to an oligopeptide or polypeptide region of about 1 to 100 amino acids in length, which connects any domain/region of the CAR of the present invention together.
- the linker can be composed of flexible residues (such as The linker is composed of amino acids and serines) so that adjacent protein domains can move freely relative to each other. When it is desired to ensure that two adjacent domains do not interfere with each other in space, a longer linker can be used. In a preferred embodiment of the present invention, (GGGGS) 3 is used.
- transduction positive rate in this specification refers to the transduction ratio of exogenous genes on T cells, including the transduction rate of CAR on T cells, which reflects the proportion of CAR-positive T cells in total T cells.
- 293T cells are human renal epithelial cell lines, which are often used to study the expression of exogenous genes and virus preparation.
- U87, HTB15, and TJ905 are all human glioma cell lines
- RKO is a human colon cancer cell line
- SKOV3 is a human ovarian cancer cell line.
- other tumor cells were cultured in DMEM complete medium (DMEM medium + 10% FBS + 1% double antibody).
- SKOV3 was cultured in McCoy's 5a complete medium (McCoy's 5a medium + 20% FBS + 1% double antibody).
- Jurkat T cells are human T lymphocyte leukemia cell lines, and the cells were cultured in RPMI-1640 complete medium (RPMI-1640 medium + 10% FBS + 1% double antibody).
- PBMC cells Prepare PBMC cells, wash them twice with PBS, count the cells with AO/PI cell counter, and detect the viability.
- PBMC cells were cultured in RPMI1640 medium + 10% FBS + 1% double antibody + 200U/mL rhIL-2 culture system, with an initial cell density of 2 ⁇ 10 6 cells/mL.
- RPMI1640 medium 10% FBS + 1% double antibody + 200U/mL rhIL-2 culture system
- ZOL zoledronic acid
- PBMC cells Prepare PBMC cells, wash twice with PBS, count cells using AO/PI cell counter, and detect viability.
- Antibody coating was performed on the 6-well plate: CD3 and CD28 antibodies were diluted to 200 ng/mL with opti-MEM medium, 2 mL of antibody dilution was added to each well of the 6-well plate, and the plates were incubated at 4°C overnight or at 37°C for 2 h.
- PBMC PBMC
- RPMI1640 medium + 10% FBS + 1% double antibody + 200U/mL rhIL-2 culture system RPMI1640 medium + 10% FBS + 1% double antibody + 200U/mL rhIL-2 culture system
- cell density 2 ⁇ 10 6 cells/mL.
- adjust the cell density (adjusted to 1 ⁇ 10 6 cells/mL) every 48 hours using RPMI1640 medium + 10% FBS + 1% double antibody + 200U/mL rhIL-2 culture system.
- ⁇ T or ⁇ T cells count the ⁇ T or ⁇ T cells after in vitro activation and culture for 24 hours, resuspend 1 ⁇ 10 6 total cells in 1mL RPMI1640 medium + 10% FBS + 1% double antibody + 200U/mL rhIL-2 culture system, and add them to the virus-treated 24-well plate. Centrifuge at 800g and 32°C for 10min and place in a cell culture incubator for culture. Count the cells every two to three days and adjust the density to 1 ⁇ 10 6 cells/mL.
- the staining system is configured as follows: 50 ⁇ L flow buffer + antibody.
- the flow cytometry buffer formula is: PBS + 1% FBS + 2.5mM EDTA.
- the amount of antibody used is determined by the antibody concentration and actual conditions. For most antibodies (concentration of 0.5-1 mg/mL), a 1:50-1:100 dilution is sufficient.
- the flow cytometry staining system is: anti-human EGFR, anti-human CD69.
- the flow cytometry staining system is: anti-human CD3, anti-human ⁇ TCR, anti-human EGFR, anti-human CD69.
- the antigens to be detected were diluted with PBS to 5 gradient concentrations of 0.5 mg/mL, 1 mg/mL, 1.5 mg/mL, 2 mg/mL, and 4 mg/mL, respectively, and spread on the ELISA plate (96-well plate), adding 100 ⁇ L to each well and leaving it at room temperature for 1 hour. Wash twice with PBST, 100 ⁇ L to each well, and let it stand for 5 minutes after adding. Then add 0 ⁇ g/mL, 2 ⁇ g/mL, or 4 ⁇ g/mL B7-H3 antibody, dilute with PBS, and add 100 ⁇ L to each well.
- the B7-H3 antigen protein was diluted into 7 concentrations of 100nM, 50nM, 25nM, 12.5nM, 6.25nM, 3.13nM and 1.56nM, and loaded on a 96-well plate.
- the human Protein G probe was selected, the stationary phase was the antigen, the mobile phase was 1B4, the binding time was set to 180s, and the dissociation time was set to 300s.
- the binding constant and dissociation constant of the human monoclonal antibody were detected, and the affinity was calculated.
- m2Y31 can block the binding of hu2Y31 to the antigen molecule, which also suggests that hu2Y31 and m2Y31 recognize the same site, but a different site from 8H9.
- the antigens to be detected including B7-H1, B7-H3, B7-H4, and B7-H5, were diluted with PBS to 5 gradient concentrations of 0.5mg/mL, 1mg/mL, 1.5mg/mL, 2mg/mL, and 0.5mg/mL, respectively, and spread on the ELISA plate (96-well plate), adding 100 ⁇ L to each well and leaving it at room temperature for 1h. Wash twice with PBST, 100 ⁇ L per well, and let it stand for 5min after adding.
- Example 6 Experiment on the binding ability of Jurkat T cells expressing CAR-B7-H3 to B7-H3 protein
- the CD69 signal activation level of CAR-B7-H3 was further detected.
- Effector cells including JurkatT-control cells that do not express CAR-B7-H3 and CAR-B7-H3-JurkatT cells that express CAR-B7-H3
- tumor cells RKO WT and RKO B7-H3 KO
- the specific operation was to incubate in a 24-well plate, add 0.5 ⁇ 10 6 effector cells and 0.5 ⁇ 10 6 tumor cells.
- Flow cytometry analysis was performed after 24 hours of incubation.
- the flow cytometry staining system was: anti-human EGFR, anti-human CD69.
- CAR-B7-H3- ⁇ T cells for RKO tumor cells knocked out by B7-H3 is comparable to that of ⁇ T cells that do not express CAR-B7-H3 ( Figure 15B). This further verifies that CAR-B7-H3- ⁇ T cells and CAR-B7-H3- ⁇ T cells enhance the killing of RKO tumor cells by recognizing B7-H3.
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Abstract
Description
Claims (30)
- 一种特异性结合B7-H3的分离的抗体或抗体片段,其包含重链可变区VH和轻链可变区VL,所述重链可变区VH包括:如SEQ ID NO:9的氨基酸序列所示的VH-CDR1、如SEQ ID NO:10的氨基酸序列所示的VH-CDR2和如SEQ ID NO:11所示的氨基酸序列VH-CDR3;所述轻链可变区VL包括:如SEQ ID NO:12的氨基酸序列所示的VL-CDR1,如SEQ ID NO:13的氨基酸序列所示的VL-CDR2和如SEQ ID NO:14的氨基酸序列所示的VL-CDR3。
- 一种特异性结合B7-H3的分离的抗体或抗体片段,其包含重链可变区VH和轻链可变区VL,所述重链可变区VH包括如SEQ ID NO:15的氨基酸序列所示的VH-CDR1、如SEQ ID NO:16的氨基酸序列所示的VH-CDR2和如SEQ ID NO:17所示的氨基酸序列VH-CDR3;所述轻链可变区VL包括:如SEQ ID NO:18的氨基酸序列所示的VL-CDR1,如SEQ ID NO:19的氨基酸序列所示的VL-CDR2和如SEQ ID NO:20的氨基酸序列所示的VL-CDR3。
- 如权利要求1或2所述的特异性结合B7-H3的分离的抗体或抗体片段,其中,所述重链可变区VH选自SEQ ID NO:1所示氨基酸序列、在CDR区之外与SEQ ID NO:1所示氨基酸序列具有80%以上、或85%以上、或88%以上、或90%以上、或93%以上、或95%以上、或98%以上同源性的氨基酸序列、SEQ ID NO:2所示氨基酸序列、在CDR区之外与SEQ ID NO:2所示氨基酸序列具有80%以上、或85%以上、或88%以上、或90%以上、或93%以上、或95%以上、或98%以上同源性的氨基酸序列中的任一种。
- 如权利要求1或2所述的特异性结合B7-H3的分离的抗体或抗体片段,其中,所述轻链可变区VL选自SEQ ID NO:3所示氨基酸序列、在CDR区之外与SEQ ID NO:3所示氨基酸序列具有80%以上、或85%以上、或88%以上、或90% 以上、或93%以上、或95%以上、或98%以上同源性的氨基酸序列、SEQ ID NO:4所示氨基酸序列、在CDR区之外与SEQ ID NO:4所示氨基酸序列具有80%以上、或85%以上、或88%以上、或90%以上、或93%以上、或95%以上、或98%以上同源性的氨基酸序列中的任一种。
- 一种特异性结合B7-H3的分离的抗体或抗体片段,其包括:(i)SEQ ID NO:1所示的重链可变区VH和SEQ ID NO:3所示的轻链可变区VL,或者(ii)SEQ ID NO:2所示的重链可变区VH和SEQ ID NO:4所示轻链可变区VL。
- 如权利要求1~5中任一项所述的特异性结合B7-H3的分离的抗体或抗体片段,其中,所述抗体或抗体片段为基因工程化改造的抗体或抗体片段。
- 如权利要求1~6中任一项所述的特异性结合B7-H3的分离的抗体或抗体片段,其中所述抗体或抗体片段为scFv。
- 一种嵌合抗原受体,其包含:权利要求7所述的特异性结合B7-H3的抗体或抗体片段。
- 如权利要求8所述的嵌合抗原受体,其包含:权利要求7所述的抗体或抗体片段、融合于所述抗体或抗体片段的羧基末端的跨膜区。
- 如权利要求8或9所述的嵌合抗原受体,其包含:权利要求7所述的抗体或抗体片段、融合于所述抗体或抗体片段的羧基末端的跨膜区和融合于所述跨膜区的羧基末端的免疫活性细胞活化信号转导区。
- 如权利要求8~10中任一项所述的嵌合抗原受体,其还包含有膜蛋白、分泌蛋白、胞内蛋白、小分子药物、细胞毒性药物中的任一种或任两种以上。
- 一种核酸分子,其包含:编码权利要求1~7中任一项所述的抗体或抗体片段或权利要求8~11中任一项所述的嵌合抗原受体的核苷酸序列。
- 如权利要求12所述的核酸分子,其包含:(i)如SEQ ID NO:5所示的编码重链可变区的核苷酸序列,以及如SEQ ID NO:7所示的编码轻链可变区的核苷酸序列,或者,(ii)如SEQ ID NO:6所示的编码重链可变区的核苷酸序列,以及如SEQ ID NO:8所示的编码轻链可变区的核苷酸序列。
- 一种载体,其包含权利要求12或13所述的核酸分子。
- 如权利要求14所述的载体,其为慢病毒载体、逆转录病毒载体、腺病毒载体或腺相关病毒载体。
- 一种细胞,其包含权利要求12或13所述的核酸分子或者权利要求14或15所述的载体。
- 如权利要求16所述的细胞,其包括自体或异体的T细胞、B细胞、NK细胞、巨噬细胞、单核细胞、树突状细胞、嗜中性粒细胞、嗜碱性粒细胞、嗜酸性粒细胞、肥大细胞、NK-T细胞、MAIT细胞、造血干细胞、胚胎干细胞、诱导多能干细胞、红细胞,所述T细胞包括αβT细胞、γδT细胞、调节性T细胞。
- 一种药物组合物,其包含:选自权利要求1~7中任一项所述的抗体或抗体片段、权利要求8~11中任一项所述的嵌合抗原受体、权利要求12或13所述的核酸分子、权利要求14或15所述的载体、权利要求16或17所述的细胞中的任意一种以上,或者,其包含:选自权利要求1~7中任一项所述的抗体或抗体片段、权利要求8~11中任一项所述的嵌合抗原受体、权利要求12或13所述的核酸分子、权利要求14或15所述的载体、权利要求16或17所述的细胞中的任意一种以上,以及可药用载剂,或者,其包含:选自权利要求1~7中任一项所述的抗体或抗体片段、权利要求8~11中任一项所述的嵌合抗原受体、权利要求12或13所述的核酸分子、权利要求14或15所述的载体、权利要求16或17所述的细胞中的任意一种以上,以及其他药物活性试剂或药物。
- 一种治疗或预防B7-H3阳性疾病方法,该方法包括给与受试者治疗有效量的权利要求1~7中任一项所述的抗体或抗体片段、权利要求8~11中任一项所述的嵌合抗原受体、权利要求12或13所述的核酸分子、权利要求14或15所述的载体、权利要求16或17所述的细胞、或者权利要求18所述的药物组合物。
- 如权利要求19所述的方法,所述B7-H3阳性疾病包括恶性/良性血液肿瘤、恶性/良性实体肿瘤、自身免疫病、细菌感染、病毒感染、寄生虫感染、骨生长异常、同种异体移植、移植排斥,所述自身免疫病包括系统性红斑狼疮、 类风湿性关节炎、多发性硬化、干燥综合征、强直性脊柱炎。
- 如权利要求20所述的方法,所述B7-H3阳性疾病包括急性骨髓白血病、慢性骨髓白血病、急性淋巴细胞白血病、非霍金性淋巴瘤、多发性骨髓瘤、黑色素瘤、肺癌、结肠直肠癌、肾肿瘤、膀胱癌、胃肠道癌、前列腺癌、肝癌、卵巢癌、胰腺癌、子宫内膜癌、胃癌、前列腺癌、肾癌、宫颈癌、甲状腺癌、子宫癌、神经内分泌癌、头颈癌、鼻咽癌、睾丸癌、基底细胞皮肤癌、鳞状细胞皮肤癌、皮肤纤维肉瘤突出症、梅克尔细胞癌、胶质母细胞瘤、神经胶质瘤、肉瘤、间皮瘤或骨髓发育不良综合征。
- 一种用于治疗或预防B7-H3阳性疾病的权利要求1~7中任一项所述的抗体或抗体片段、权利要求8~11中任一项所述的嵌合抗原受体、权利要求12或13所述的核酸分子、权利要求14或15所述的载体、权利要求16或17所述的细胞或者权利要求18所述的药物组合物。
- 如权利要求22所述的用于治疗或预防B7-H3阳性疾病的抗体或抗体片段、嵌合抗原受体、核酸分子、载体、细胞或者药物组合物,所述B7-H3阳性疾病包括恶性/良性血液肿瘤、恶性/良性实体肿瘤、自身免疫病、细菌感染、病毒感染、寄生虫感染、骨生长异常、同种异体移植、移植排斥,所述自身免疫病包括系统性红斑狼疮、类风湿性关节炎、多发性硬化、干燥综合征、强直性脊柱炎。
- 如权利要求23所述的用于治疗或预防B7-H3阳性疾病的抗体或抗体片段、嵌合抗原受体、核酸分子、载体、细胞或者药物组合物,所述B7-H3阳性疾病包括急性骨髓白血病、慢性骨髓白血病、急性淋巴细胞白血病、非霍金性淋巴瘤、多发性骨髓瘤、黑色素瘤、肺癌、结肠直肠癌、肾肿瘤、膀胱癌、胃肠道癌、前列腺癌、肝癌、卵巢癌、胰腺癌、子宫内膜癌、胃癌、前列腺癌、肾癌、宫颈癌、甲状腺癌、子宫癌、神经内分泌癌、头颈癌、鼻咽癌、睾丸癌、基底细胞皮肤癌、鳞状细胞皮肤癌、皮肤纤维肉瘤突出症、梅克尔细胞癌、胶质母细胞瘤、神经胶质瘤、肉瘤、间皮瘤或骨髓发育不良综合征。
- 一种B7-H3的检测方法,其包括:使用权利要求1~7中任一项所述的抗体或抗体片段、权利要求8~11中任一项所述的嵌合抗原受体、或者权利要求12或13所述的核酸分子,来检测B7-H3的步骤。
- 一种B7-H3的检测用试剂盒,其含有权利要求1~7中任一项所述的抗体 或抗体片段或其标记物、权利要求8~11中任一项所述的嵌合抗原受体或其标记物、或者权利要求12或13所述的核酸分子或其标记物。
- 一种分离B7-H3阳性细胞的分离试剂盒,其含有权利要求1~7中任一项所述的抗体或抗体片段或其标记物、权利要求8~11中任一项所述的嵌合抗原受体或其标记物、或者权利要求12或13所述的核酸分子或其标记物。
- 一种体外增强细胞功能的方法,其包括:使细胞与权利要求1~7中任一项所述的抗体或抗体片段或其标记物、权利要求8~11中任一项所述的嵌合抗原受体或其标记物、或者权利要求12或13所述的核酸分子或其标记物,相接触的步骤。
- 权利要求1~7中任一项所述的抗体或抗体片段在制备用于检测B7-H3蛋白的制品中的应用。
- 权利要求1~7中任一项所述的抗体或抗体片段在制备用于阻断B7-H3蛋白的制品中的应用。
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| JP2025537967A JP2026500718A (ja) | 2022-12-26 | 2023-12-26 | B7-h3を標的とする抗体または抗体断片、およびキメラ抗原受容体免疫細胞療法の分野におけるその使用 |
| KR1020257020902A KR20250128309A (ko) | 2022-12-26 | 2023-12-26 | B7-h3을 표적으로 하는 항체 또는 항체 단편, 및 키메라 항원 수용체 면역 세포 요법 분야에서의 이의 응용 |
| EP23910632.1A EP4644420A1 (en) | 2022-12-26 | 2023-12-26 | Antibody or antibody fragment targeting b7-h3, and use thereof in field of chimeric antigen receptor immune cell therapy |
| AU2023415250A AU2023415250A1 (en) | 2022-12-26 | 2023-12-26 | Antibody or antibody fragment targeting b7-h3, and use thereof in field of chimeric antigen receptor immune cell therapy |
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| WO2025245264A1 (en) * | 2024-05-21 | 2025-11-27 | Briapro Therapeutics Corp. | Anti-b7-h3 antibodies and methods of use thereof |
| CN118845780A (zh) * | 2024-07-08 | 2024-10-29 | 海南大学 | 10-羟基喜树碱在增强γδT细胞抗肿瘤功能中的应用 |
| CN118515768B (zh) * | 2024-07-24 | 2024-10-29 | 昕传生物科技(北京)有限公司 | 靶向b7-h3的抗体、嵌合抗原受体及其应用 |
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| WO2026022767A1 (ko) * | 2024-07-24 | 2026-01-29 | (주)티카로스 | B7-h3을 표적하는 항체, 및 이를 포함하는 키메라 항원 수용체 |
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| Publication number | Publication date |
|---|---|
| EP4644420A1 (en) | 2025-11-05 |
| CN116041518A (zh) | 2023-05-02 |
| JP2026500718A (ja) | 2026-01-08 |
| AU2023415250A1 (en) | 2025-07-17 |
| KR20250128309A (ko) | 2025-08-27 |
| TW202434638A (zh) | 2024-09-01 |
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