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.:
Date of Patent:
Feb. 23, 1999
Filed:
Dec. 12, 1996
Gillian M Beattie, Poway, CA (US);
Alberto Hayek, La Jolla, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
Human pancreatic endocrine cells are proliferated without loss of hormone function in a culture medium containing extracellular matrix from bladder carcinoma cell lines in the substantial absence of hepatocyte growth factor/scatter factor. Proliferation is preferably carried out in the substantial absence of any peptide growth factors and nicotinamide. The cells may be proliferated in a monolayer on a solid substrate. Islets and islet-like cell clusters are proliferated without loss of insulin-secreting function by incubation in a medium containing extracellular matrix from a human bladder carcinoma cell line, preferably cell line ATCC HTB-9.