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CD276-targeting chimeric antigen receptor with CD28 and 4-1BB as costimulatory structural domain and application of CD276-targeting chimeric antigen receptor

A chimeric antigen receptor and costimulatory domain technology, applied in the field of chimeric antigen receptor T cells and preparation, and chimeric antigen receptor, can solve the problem of limited research on killing activity, and achieve strong killing activity and durability. , the effect of maintaining vitality and lethality

Active Publication Date: 2022-02-01
SHENZHEN INST OF ADVANCED TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Currently, there is limited research on the killing activity of CD276-targeting CAR-T cells against hepatocellular carcinoma and other malignant tumors that highly express CD276

Method used

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  • CD276-targeting chimeric antigen receptor with CD28 and 4-1BB as costimulatory structural domain and application of CD276-targeting chimeric antigen receptor
  • CD276-targeting chimeric antigen receptor with CD28 and 4-1BB as costimulatory structural domain and application of CD276-targeting chimeric antigen receptor
  • CD276-targeting chimeric antigen receptor with CD28 and 4-1BB as costimulatory structural domain and application of CD276-targeting chimeric antigen receptor

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Embodiment Construction

[0055] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0056] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a CD276-targeting chimeric antigen receptor with CD28 and 4-1BB as costimulatory structural domains and application of the CD276-targeting chimeric antigen receptor, and belongs to the technical field of biological medicine. According to the CD276-targeting chimeric antigen receptor T cell disclosed by the invention, CD28 and 4-1BB are taken as costimulatory structural domains, so that the CD276-targeting chimeric antigen receptor T cell has strong killing activity on positive tumor cell lines expressing CD276, has stronger killing activity and durability in vivo, and is beneficial to the generation of memory phenotype T cells. In-vitro function tests show that the CD276-targeted chimeric antigen receptor T cell has killing activity on CD276 positive liver cancer cell lines.

Description

technical field [0001] The invention belongs to the technical field of biomedicine, and specifically relates to CD276-targeting chimeric antigen receptors with CD28 and 4-1BB co-stimulatory domains, chimeric antigen receptor T cells, preparation methods and applications. Background technique [0002] Hepatocellular carcinoma is a malignant tumor that seriously threatens human health. Current treatments for hepatocellular carcinoma include chemotherapy, radiotherapy, hepatectomy, ablation therapy, targeted therapy such as Sorafenib, antibody therapy such as immune checkpoint inhibitors, Vascular endothelial growth factor receptor inhibitors, these treatment methods can not achieve good therapeutic effect. [0003] Chimeric antigen receptor T cell therapy is a new type of immune cell therapy, which has the function of specifically and efficiently killing tumor cells expressing corresponding antigens. CD276, also known as B7-H3, is a type of transmembrane protein belonging to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07K19/00C12N15/62C12N5/10C12N15/867A61K39/00A61P35/00
CPCC07K16/2827C07K14/70517C07K14/70521C07K14/70578C07K14/7051C12N5/0636C12N15/86A61K39/001111A61P35/00C07K2317/622C07K2319/03C07K2319/33C07K2319/60C07K2319/74C12N2510/00C12N2740/15043C12N2800/107A61K2039/5156A61K2039/844
Inventor 万晓春曹国政
Owner SHENZHEN INST OF ADVANCED TECH
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