Abstract:
:The discovery of Rous sarcoma virus (RSV) led to the identification of cellular Src (c-Src), a non-receptor tyrosine kinase, which has since been implicated in the development of numerous human cancers. c-Src has been found to be highly activated in colon cancers, particularly in those metastatic to the liver. Studies of the mechanism of c-Src regulation have suggested that c-Src kinase activity is downregulated by phosphorylation of a critical carboxy-terminal tyrosine (Tyr 530 in human c-Src, equivalent to Tyr 527 in chicken Src) and have implied the existence of activating mutations in this C-terminal regulatory region. We report here the identification of a truncating mutation in SRC at codon 531 in 12% of cases of advanced human colon cancer tested and demonstrate that the mutation is activating, transforming, tumorigenic and promotes metastasis. These results provide, for the first time, genetic evidence that activating SRC mutations may have a role in the malignant progression of human colon cancer.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Irby RB,Mao W,Coppola D,Kang J,Loubeau JM,Trudeau W,Karl R,Fujita DJ,Jove R,Yeatman TJdoi
10.1038/5971subject
Has Abstractpub_date
1999-02-01 00:00:00pages
187-90issue
2eissn
1061-4036issn
1546-1718journal_volume
21pub_type
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