Chimeric antigen receptor comprising third signal receptor and use thereof
US11524034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2020 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Dec 18, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2740/15043
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.