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Title:
ANTI-GPC3 ANTIBODY
Document Type and Number:
WIPO Patent Application WO/2018/131586
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: an anti-GPC3 antibody that recognizes an epitope different from those recognized by existing antibodies (e.g., GC33 and GC199), and that can specifically bind to GPC3 localized on a cell membrane even as a single-chain antibody; a CAR including said anti-GPC3 single-chain antibody; an immunocompetent cell expressing said CAR; an anti-GPC3 antibody gene or CAR gene; a vector including said anti-GPC3 antibody gene or CAR gene; a host cell into which said vector has been introduced; a method for specifically detecting GPC3; and a kit for specifically detecting GPC3. This antibody includes the specific heavy-chain CDRs 1-3 and the specific light-chain CDRs 1-3 defined in claim 1, and specifically binds to a human-derived GPC3 polypeptide. This antibody specifically binds to GPC3 localized on a cell membrane. A CAR-immunocompetent cell prepared from a CAR including said single-chain antibody is useful in cancer immunotherapy.

Inventors:
TAMADA KOJI (JP)
SAKODA YUKIMI (JP)
NAKATSURA TETSUYA (JP)
SAITO KEIGO (JP)
Application Number:
PCT/JP2018/000257
Publication Date:
July 19, 2018
Filing Date:
January 10, 2018
Export Citation:
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Assignee:
UNIV YAMAGUCHI (JP)
NAT CANCER CT (JP)
International Classes:
C12N15/09; C07K16/18; C12N1/15; C12N1/19; C12N1/21; C12N5/10; G01N33/574; C12P21/08
Domestic Patent References:
WO2015097928A12015-07-02
WO2004022739A12004-03-18
WO2016049459A12016-03-31
WO2013070468A12013-05-16
WO2016036973A12016-03-10
WO2016056228A12016-04-14
WO2016056228A12016-04-14
Foreign References:
JP2016523518A2016-08-12
JP4011100B22007-11-21
JPH02227075A1990-09-10
JPH0322979A1991-01-31
JPS59140885A1984-08-13
JPS6070080A1985-04-20
JPS60251887A1985-12-12
JP2606856B21997-05-07
JP2517813B21996-07-24
JP2017001732A2017-01-05
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See also references of EP 3569709A4
Attorney, Agent or Firm:
HIROTA, Masanori (JP)
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