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Title:
ANTIBODY OR ANTIGEN BINDING FRAGMENT THEREOF FOR SPECIFICALLY RECOGNIZING B CELL MALIGNANCY, CHIMERIC ANTIGEN RECEPTOR COMPRISING SAME, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/112347
Kind Code:
A2
Abstract:
The present invention relates to a new antibody or an antigen binding fragment thereof for use in the treatment of cancer by targeting a B cell malignancy, a chimeric antigen receptor comprising the same, and a use of the same. The antibody of the present invention is an antibody for specifically binding to CD19 that is highly expressed in cancer cells (particularly, blood cancer), has very low homology to a CDR sequence thereof compared to a CDR sequence of a conventional CD19 target antibody so that the sequence thereof is unique, and specifically binds to an epitope that is different from a FMC63 antibody fragment binding to CD19 of the conventional art. A cell expressing the chimeric antigen receptor comprising an anti-CD19 antibody or the antigen binding fragment of the present invention induces immune cell activity in response to a positive cell line expressing CD19, and thus may be utilized as a CAR-immune cell therapeutic agent.

Inventors:
LEE JONG SEO (KR)
KIM KYU TAE (KR)
KO BONG KOOK (KR)
KIM KI HYUN (KR)
Application Number:
PCT/KR2018/015445
Publication Date:
June 13, 2019
Filing Date:
December 06, 2018
Export Citation:
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Assignee:
ABCLON INC (KR)
Foreign References:
KR20170016969A2017-02-14
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US9074002B22015-07-07
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See also references of EP 3722313A4
Attorney, Agent or Firm:
YOON, Dae Woong (KR)
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