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:
Feb. 15, 2000

Filed:

May. 18, 1998
Applicant:
Inventors:

T Paul Wallace, Aberdeenshire, GB;

William J Harris, Carnoustie, GB;

Frank J Carr, Balmedie, GB;

Lloyd J Old, New York, NY (US);

Sydney Welt, Armonk, NY (US);

Kunio Kitamura, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
536 231 ; 4352523 ; 4353201 ; 435325 ;
Abstract

The invention provides for the production of several humanized murine antibodies specific for the Lewis b antigen, which is recognized by the murine antibody 58-1066. The antigen is expressed on cell lines from colon, lung, bladder, breast, renal, pancreatic and ovarian cancers. The expression of the antigen is greatly increased in cancer tissues as compared to its expression in the corresponding normal tissue. The invention also provides for numerous polynucleotide encoding humanized Lewis b antigen specific antibodies, expression vectors for producing humanized Lewis b antigen specific antibodies, and host cells for the recombinant production of the humanized antibodies. The invention also provides methods for detecting cancerous cells (in vitro and in vivo) using humanized Lewis b antigen specific antibodies. Additionally, the invention provides methods of treating cancer using Lewis b antigen specific antibodies.


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