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DLC-1, a GTPase-activating protein for Rho, is associated with cell proliferation, morphology, and migration in human hepatocellular carcinoma
Cited 68 time in
Web of Science
Cited 69 time in Scopus
- Authors
- Issue Date
- 2007-03
- Publisher
- Academic Press
- Citation
- Biochemical and Biophysical Research Communications, Vol.355 No.1, pp.72-77
- Abstract
- DLC-1 (deleted in liver cancer-1) is a tumor suppressor gene for hepatocellular carcinoma and other cancers. To characterize its functions, we constructed recombinant adenovirus encoding the wild-type DLC-1 and examined its effects on behaviors of a hepatocellular carcinoma cell line (SNU-368), which does not express DLC-1. Here, we found that restoration of DLC-1 expression in the SNU-368 cells caused an inhibition of cell proliferation with an increase of a subGI population. Furthermore, DLC-1 overexpression induced disassembly of stress fibers and extensive membrane protrusions around cells on laminin-1. DLC-1 overexpression also inhibited cell migration and dephosphorylated focal adhesion proteins such as focal adhesion kinase (FAK), Cas (p130Cas; Crk-associated substrate), and paxillin. These observations suggest that DLC-1 plays important roles in signal transduction pathway regulating cell proliferation, cell morphology, and cell migration by affecting Rho family GTPases and focal adhesion proteins. (c) 2007 Elsevier Inc. All rights reserved.
- ISSN
- 0006-291X
- Language
- English
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