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.

Date of Patent:
Jul. 25, 2023

Filed:

Dec. 21, 2018
Applicant:

Abclon Inc., Seoul, KR;

Inventors:

Jong Seo Lee, Gyeonggi-do, KR;

Kyu Tae Kim, Gyeonggi-do, KR;

Bong Kook Ko, Seoul, KR;

Ki Hyun Kim, Seoul, KR;

Assignee:

ABCLON INC., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07K 16/28 (2006.01); C07K 14/725 (2006.01);
U.S. Cl.
CPC ...
C07K 16/2803 (2013.01); C07K 14/7051 (2013.01); C07K 2317/565 (2013.01); C07K 2319/03 (2013.01);
Abstract

The present invention relates to: a novel antibody or an antigen-binding fragment thereof for use in the treatment of cancer by targeting B cell malignancies; a chimeric antigen receptor comprising the same; and uses thereof. The antibody of the present invention is an antibody specifically binding to CD19 highly expressed in cancer cells (particularly, blood cancer) and has very low homology compared to the CDR sequences of conventional CD19 target antibodies, and thus the sequence thereof is unique. In addition, cells expressing a chimeric antigen receptor comprising an anti-CD19 antibody or antigen-binding fragment of the present invention induce immune cell activity in response to a positive cell line expressing CD19, and thus can be usefully used as a therapeutic agent for CAR-immune cells.


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