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:
Jul. 07, 1998
Filed:
Jul. 11, 1996
Helene S Smith, San Francisco, CA (US);
Ling-Chun Chen, Fremont, CA (US);
California Pacific Medical Center, San Francisco, CA (US);
Abstract
New methods are disclosed for detecting cancer associated genes, and obtaining corresponding cDNA fragments. The methods involve supplying RNA preparations from control cells, and from a plurality of different cancer cells that share a duplicated or deleted gene in the same region of a chromosome. Amplified cDNA copies are displayed, and then selected based on differences in abundance of RNA between preparations. Optional additional screening steps involve surveying panels of cancer cells using the cDNA for RNA overabundance with or without gene duplication. By applying these methods, cDNA sequences derived from four novel genes associated with breast cancer were obtained and characterized. Each of the genes was duplicated in about 60% of the cancer cell lines tested; while other cells showed RNA overabundance without gene duplication. Genes with these properties are particularly useful in cancer diagnosis and treatment.