Chimeric antigen receptor comprising co-stimulatory receptor and application thereof
US11590168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2020 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Jan 6, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2740/16043
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.