Shanghai Longyao Biotechnology Inc., Ltd.

Shengqin Ye

Xin Wang

Xuanming Yang

Yangxin Fu

Min Li

Fanlin Li

Huihui Zhang

Xiaoqing Zhang

Disclosed are a universal CAR-T cell knocking out one or more of CD3 delta, CD3 gamma, CD3 epsilon and CD3 zeta, and simultaneously introducing the HSV-TK gene. Also disclosed are a method for preparing the above-mentioned CAR-T cell, a preparation comprising the CAR-T cell, and the use of the CAR-T cell.

Universal CAR-T cell and preparation method and use thereof

Provided by the present invention is a chimeric antigen receptor comprising a co-stimulatory receptor, the chimeric antigen receptor having a structure of scFv(X)-(Y)CD3zeta-2A-(Z); X comprises a tumortargeting antibody or a ligand or receptor capable of specifically binding to a tumor; Y is an intracellular region of the co-stimulatory receptor, and Z is a co-stimulatory receptor that is selected from among ICOS, CD28, CD27, HVEM, LIGHT, CD40L, 4-1BB, OX40, DR3, GITR, CD30, TIMI, SLAM, CD2, CD226. Further provided by the present invention are CAR-T cells that are constructed by means of a recombinant expression vector of the described chimeric antigen receptor, a preparation method therefor and an application thereof. The CAR-T cells described in the present invention significantly improve the tumor-killing abilities and amplification abilities thereof.

Chimeric antigen receptor comprising co-stimulatory receptor and application thereof

The present invention provides a chimeric antigen receptor having a structure of scFv(X)-(Y)CD 3zeta-MN.X comprises a tumor targeting antibody or a ligand or receptor capable of specifically binding to a tumor. Y is an intracellular region of a costimulatory receptor selected from ICOS, CD28, CD27, HVEM, LIGHT, CD40L, 4-1BB, OX40, DR3, GITR, CD30, SLAM, CD2, and CD226; M is an intracellular region of a gamma chain family cytokine receptor, the cytokine receptor being selected from IL2Ra, IL2Rb, IL4Ra, IL7Ra, IL9Ra, IL15Ra, and IL21Ra. N is an intracellular region of IL2Rg. The present invention further provides a CAR-T cell constructed from the recombinant expression vector of said chimeric antigen receptor, a preparation method therefor and the use thereof. The CAR-T cell of the present invention significantly improves tumor killing capacity and amplification capacity.

Chimeric antigen receptor comprising third signal receptor and use thereof

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Shanghai, China

Shengqin Ye