CAR-T Targeting GPC3, Mesothelin, Claudin18.2, GUCY2C, B7-H3, PSCA, PSMA, MUC1, TGFβ, HER2, Lewis-Y, AXL, or EGFR for Immunotherapy of Lung Cancer: Phase I Clinical Trial

The third generation of CAR-T cells that target GPC3, Mesothelin, Claudin18.2, GUCY2C, B7-H3, PSCA, PSMA, MUC1, TGFβ, HER2, Lewis-Y, AXL, or EGFR have been constructed respectively and their anti-cancer function has been verified by multiple in vitro and in vivo studies.Clinical studies will be performed to test the anti-cancer function of the these individual or combination of the CAR-T cells for immunotherapy of human cancer patients with GPC3, Mesothelin, Claudin18.2, GUCY2C, B7-H3, PSCA, PSMA, MUC1, TGFβ, HER2, Lewis-Y, AXL, or EGFR expressions. In this phase I study, the safety, tolerance, and preliminary efficacy of the GPC3/Mesothelin/Claudin18.2/GUCY2C/B7-H3/PSCA/PSMA/MUC1/TGFβ/HER2/Lewis-Y/AXL/EGFR
-CAR-T cell immunotherapy on human cancers will firstly be tested.

开始日期2017-07-01

申办/合作机构

广州医科大学附属第二医院

[+2]

NCT03198546 / Recruiting临床1期IIT

CAR-T Cell Targeting GPC3 for Immunotherapy of Hepatocellular Carcinoma: Phase I Clinical Trial

The third/fourth generation of CAR-T cells that target GPC3 (GPC3-CART cell) and/or soluble TGFβ (GPC3/TGFβ-CART )have been constructed and their anti-HCC function has been verified by multiple in vitro and in vivo studies. Clinical studies will be performed to test the anti-cancer function by the GPC3/TGFβ-CAR-T cells in human HCC patients with GPC3 expression. In this phase I study, the safety, tolerance, and preliminary efficacy of the GPC3/TGFβ-CAR-T cell immunotherapy on human will firstly be tested.

开始日期2017-07-01

申办/合作机构

广州医科大学附属第二医院

[+3]

100 项与 GPC3-CAR-T Cells(Guangdong Zhaotai InVivo Biomedicine Co. Ltd.) 相关的临床结果

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100 项与 GPC3-CAR-T Cells(Guangdong Zhaotai InVivo Biomedicine Co. Ltd.) 相关的转化医学

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100 项与 GPC3-CAR-T Cells(Guangdong Zhaotai InVivo Biomedicine Co. Ltd.) 相关的专利（医药）

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项与 GPC3-CAR-T Cells(Guangdong Zhaotai InVivo Biomedicine Co. Ltd.) 相关的文献（医药）

2023-07-01·Cancer communications (London, England)

Enhancement of CAR-T cell activity against cholangiocarcinoma by simultaneous knockdown of six inhibitory membrane proteins.

Article

作者: Xia, Baijin ; Qiao, Yidan ; Tan, Jizhou ; Chen, Jie ; Liu, Bingfeng ; Zou, Fan ; Wu, Xiangyuan ; Yan, Shumei ; Zhang, Hui ; Lin, Keming ; Zhang, Xu ; Chen, Yongjian ; Wang, Xuemei ; Zhang, Yiwen ; He, Xin ; Lu, Lijuan

BACKGROUNDExisting treatments for cholangiocarcinoma have poor efficacy. However, chimeric antigen receptor-T (CAR-T) cells are emerging as a potential therapeutic strategy. Solid tumors possess multiple adverse factors in an immunosuppressive microenvironment that impair CAR-T cell infiltration and function. This study aimed to improve the function of CAR-T cells through knock down immune checkpoints and immunosuppressive molecular receptors.METHODSWe evaluated the expression of epidermal growth factor receptor (EGFR) and B7 homolog 3 protein (B7H3) antigens in cholangiocarcinoma tissues using immunohistochemistry and screened specific immune checkpoints in the cholangiocarcinoma microenvironment via flow cytometry. Subsequently, we engineered CAR-T cells targeting EGFR and B7H3 antigens. We simultaneously knocked down immune checkpoints and immunosuppressive molecular receptors in CAR-T cells by constructing two clusters of small hairpin RNAs and evaluated the engineered CAR-T cells for antitumor activity both in vitro, using tumor cell lines and cholangiocarcinoma organoid models, and in vivo, using humanized mouse models.RESULTSWe observed high expression of EGFR and B7H3 antigens in cholangiocarcinoma tissues. EGFR-CAR-T and B7H3-CAR-T cells demonstrated specific anti-tumor activity. We found an abundance of programmed cell death protein 1 (PD-1), T cell immunoglobulin and mucin domain-containing protein 3 (Tim-3), and T cell immunoglobulin and ITIM domain (Tigit) on infiltrated CD8⁺ T cells in the cholangiocarcinoma microenvironment. We then decreased the expression of these 3 proteins on the surface of CAR-T cells, named PTG-scFV-CAR-T cells. Furthermore, we knocked-down the expression of transforming growth factor beta receptor (TGFβR), interleukin-10 receptor (IL-10R), and interleukin-6 receptor (IL-6R) of PTG-scFV-CAR-T cells. Those cells, named PTG-T16R-scFV-CAR-T cells, potently killed tumor cells in vitro and promoted apoptosis of tumor cells in a cholangiocarcinoma organoid model. Finally, the PTG-T16R-scFv-CAR-T cells showed greater inhibitory effect on tumor growth in vivo, and were superior in prolonging the survival of mice.CONCLUSIONSOur results revealed that PTG-T16R-scFV-CAR-T cells with knockdown of sextuplet inhibitory molecules exhibited strong immunity against cholangiocarcinoma and long-term efficacy both in vitro and in vivo. This strategy provides an effective and personalized immune cell therapy against cholangiocarcinoma.

2020-01-01·Therapeutic Advances in Medical Oncology2区 · 医学

Split chimeric antigen receptor-modified T cells targeting glypican-3 suppress hepatocellular carcinoma growth with reduced cytokine release

2区 · 医学

ArticleOA

作者: Liu, Xuan ; Hou, Xiaorui ; Ye, Guofu ; Yin, Yue ; Jiang, Xiaotao ; Yi, Honglei ; Wen, Jianyun ; Wu, Xuedong

Background: Human glypican-3 (hGPC3) is a protein highly expressed in hepatocellular carcinoma (HCC) but limited in normal tissues, making it an ideal target for immunotherapy. The adoptive transfer of hGPC3-specific chimeric antigen receptor T (CAR-T) cells for HCC treatment has been conducted in clinical trials. Due to the rigid construction, conventional CAR-T cells have some intrinsic limitations, like uncontrollable overactivation and inducing severe cytokine release syndrome. Methods: We redesigned the hGPC3-specific CAR by splitting the traditional CAR into two parts. By using coculturing assays and a xenograft mouse model, the in vitro and in vivo cytotoxicity and cytokine release of the split anti-hGPC3 CAR-T cells were evaluated against various HCC cell lines and compared with conventional CAR-T cells. Results: In vitro data demonstrated that split anti-hGPC3 CAR-T cells could recognize and lyse hGPC3+ HepG2 and Huh7 cells in a dose-dependent manner. Impressively, split anti-hGPC3 CAR-T cells produced and released a significantly lower amount of proinflammatory cytokines, including IFN-γ, TNF-α, IL-6, and GM-CSF, than conventional CAR-T cells. When injected into immunodeficient mice inoculated subcutaneously with HepG2 cells, our split anti-hGPC3 CAR-T cells could suppress HCC tumor growth, but released significantly lower levels of cytokines than conventional CAR-T cells. Conclusions: We describe here for the first time the use of split anti-hGPC3 CAR-T cells to treat HCC; split anti-hGPC3 CAR-T cells could suppress tumor growth and reduce cytokine release, and represent a more versatile and safer alternative to conventional CAR-T cells treatment.

2018-10-01·Cancer Immunology, Immunotherapy2区 · 医学

Increased antitumor activities of glypican-3-specific chimeric antigen receptor-modified T cells by coexpression of a soluble PD1–CH3 fusion protein

2区 · 医学

Article

作者: Liu, Ying ; Jiang, Hua ; Yu, Min ; Li, Zonghai ; Di, Shengmeng ; Wu, Xiuqi ; Wang, Yi ; Shi, Bizhi ; Shi, Zhimin ; Luo, Hong ; Pan, Zeyan

Our recent clinical study demonstrated that glypican-3 (GPC3)-specific chimeric antigen receptor-modified T (CAR-T) cells are a promising treatment for hepatocellular carcinoma (HCC). However, the interaction of programmed cell death 1 (PD-1) and PD-L1-mediated T-cell inhibition is involved in immune evasion in a wide range of solid tumors, including HCC. To overcome this problem, we introduced a fusion protein composed of a PD-1 extracellular domain and CH3 from IgG4 into GPC3-specific CAR-T cells (GPC3-28Z) to block the PD-1/PD-L1 pathway. GPC3-specific CAR-T cells carrying the PD-1-CH3 fusion protein (sPD1) specifically recognized and lysed GPC3-positive HCC cells. The proliferation capacity of GPC3-28Z-sPD1 T cells after weekly stimulation with target cells was much higher than that of control GPC3-28Z T cells. Additionally, the coexpression of sPD1 could protect CAR-T cells from exhaustion when incubated with target cells, as phosphorylated AKT and Bcl-xL expression levels were higher in GPC3-28Z-sPD1 T cells than in GPC3-28Z cells. Importantly, in two HCC tumor xenograft models, GPC3-28Z-sPD1 T cells displayed a significantly higher tumor suppression capacity than GPC3-28Z T cells. In addition, an increased number of CD3⁺ T cells in the circulation and tumors and increased granzyme B levels and decreased Ki67 expression levels in the tumors were observed in the mice treated with GPC3-28Z-sPD1 T cells. Together, these data indicated that GPC3-specific CAR-T cells carrying sPD1 show promise as a treatment for patients with HCC.

100 项与 GPC3-CAR-T Cells(Guangdong Zhaotai InVivo Biomedicine Co. Ltd.) 相关的药物交易

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研发状态

10 条进展最快的记录,

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适应症	最高研发状态	国家/地区	公司	日期
肝细胞癌	临床1期	中国	广东昭泰体内生物医药科技有限公司	2017-07-01
鳞状细胞肺癌	临床1期	中国	广东昭泰体内生物医药科技有限公司	2017-07-01