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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.:

US 12030957 B1

PDFFull Text
Date of Patent:
Jul. 09, 2024

Filed:

Dec. 08, 2020

Plap-car-effector cells

Applicants:

Promab Biotechnologies, Inc., Richmond, CA (US);

Forevertek Biotechnology Co., Ltd, Hunan, CN;

Inventors:

Lijun Wu, Albany, CA (US);

Vita Golubovskaya, Richmond, CA (US);

Assignees:

ProMab Biotechnologies, Inc., Richmond, CA (US);

Forevertek Biotechnology Co., Ltd, Changsha, CN;

Attorneys:

Perkins Coie LLP

Viola Kung

Primary Examiner:

Louise W Humphrey

Assistant Examiner:

Mary A Crum

Int. Cl.
CPC ...
C07K 14/725 (2006.01); A61K 35/17 (2015.01); A61P 35/00 (2006.01); C07K 14/705 (2006.01); C07K 16/28 (2006.01); C07K 16/40 (2006.01); A61K 39/00 (2006.01);
U.S. Cl.
CPC ...
C07K 16/40 (2013.01); A61K 35/17 (2013.01); A61P 35/00 (2018.01); C07K 14/7051 (2013.01); C07K 14/70517 (2013.01); C07K 14/70521 (2013.01); C07K 16/2803 (2013.01); C07K 16/2818 (2013.01); C07K 16/2827 (2013.01); A61K 2039/505 (2013.01); A61K 2039/5156 (2013.01); A61K 2039/5158 (2013.01); C07K 2317/24 (2013.01); C07K 2317/567 (2013.01); C07K 2317/622 (2013.01); C07K 2317/76 (2013.01); C07K 2319/02 (2013.01); C07K 2319/03 (2013.01); C07K 2319/30 (2013.01); C07K 2319/33 (2013.01);
Abstract

The present invention is directed to a chimeric antigen receptor (CAR) fusion protein comprising from N-terminus to C-terminus: (i) a single-chain variable fragment (scFv) comprising Vand V, wherein scFv binds to human PLAP (placental alkaline phosphatase), (ii) a transmembrane domain, (iii) a co-stimulatory domain of CD28, OX-40, GITR, or 4-1BB, and (iv) CD3 an activating domain. The present invention is also directed to T cells, natural killer (NK) cells, or macrophages, modified to express the CAR of the present invention. The present invention is further directed to a method for treating PLAP-positive cancer cells by administering PLAP-CAR-T cells, PLAP-CAR-NK cells, or PLAP-CAR-macrophages to the patients.

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