The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2025
Filed:
Nov. 11, 2019
West China Hospital, Sichuan University, Sichuan, CN;
WEST CHINA HOSPITAL, SICHUAN UNIVERSITY, Sichuan, CN;
Abstract
The present invention belongs to the field of genetic engineering, and particularly relates to a genetically engineered dual-targeting chimeric antigen receptor. The present invention provides a genetically engineered dual-targeting chimeric antigen receptor and a host cell thereof in response to up-regulated expression of PD-L1 in tumor cells and immune cells after these cells are exposed to malignant serosal cavity effusion. The dual-targeting chimeric antigen receptor provided by the present invention competitively binds to PD-L1 to transform an inhibition signal of PD-L1 into an activation signal and to enhance the killing activity of T cells; meanwhile, 4-1BB introduced downstream thereof can promote proliferation and survival of T cells. In addition, the present invention also discloses a host cell expressing the above dual-targeting antigen receptor and a use thereof in preventing or treating solid tumors.