Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 7-Day Trial for You or Your Team.

Learn More →

Hepatocyte growth factor promotes cell survival from Fas‐mediated cell death in hepatocellular carcinoma cells via Akt activation and Fas‐death–inducing signaling complex suppression

Hepatocyte growth factor promotes cell survival from Fas‐mediated cell death in hepatocellular... The Akt/PI‐3 kinase pathway is a system essential for cell survival. In the current study, we showed that hepatocyte growth factor (HGF) activates the Akt/PI‐3 kinase pathway to suppress Fas‐mediated cell death in human hepatocellular carcinoma (HCC; 3 lines; SK‐Hep1, HLE, and Chang Liver cell lines), hepatoblastoma (1 line; HepG2), and embryonic hepatocyte (1 line; WRL). Five tested cell lines showed the resistance to Fas‐mediated cell death by the pretreatment of HGF. This HGF‐induced cell survival was suppressed by wortmannin (Akt/PI‐3 kinase pathway inhibitor), suggesting an involvement of Akt. When cells were pretreated with HGF, Fas‐mediated cell death was suppressed, followed by Akt phosphorylation at Ser473. Fas‐death–inducing signaling complex (DISC) formation, especially FADD and caspase 8 interaction, was suppressed by HGF and the suppression of the Akt/PI‐3 kinase pathway by transient expression of PTEN, resulting in acquisition of Fas‐DISC formation and Fas‐mediated cell death in HGF‐treated cells. We suggest that HGF promotes cell survival in hepatocyte‐derived cell lines (HCC, hepatoblastoma, and embryonic hepatocyte) from Fas‐mediated cell death via Fas‐DISC suppression as a result of Akt activation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Hepatology Wolters Kluwer Health

Hepatocyte growth factor promotes cell survival from Fas‐mediated cell death in hepatocellular carcinoma cells via Akt activation and Fas‐death–inducing signaling complex suppression

Hepatocyte growth factor promotes cell survival from Fas‐mediated cell death in hepatocellular carcinoma cells via Akt activation and Fas‐death–inducing signaling complex suppression

Loading next page...
 
/lp/wolters-kluwer-health/hepatocyte-growth-factor-promotes-cell-survival-from-fas-mediated-cell-XiFU0ycs5P

References (48)

Publisher
Wolters Kluwer Health
Copyright
Copyright © 2000 American Association for the Study of Liver Diseases
ISSN
0270-9139
eISSN
1527-3350
DOI
10.1053/jhep.2000.17738
pmid
11003625
Publisher site
See Article on Publisher Site

Abstract

The Akt/PI‐3 kinase pathway is a system essential for cell survival. In the current study, we showed that hepatocyte growth factor (HGF) activates the Akt/PI‐3 kinase pathway to suppress Fas‐mediated cell death in human hepatocellular carcinoma (HCC; 3 lines; SK‐Hep1, HLE, and Chang Liver cell lines), hepatoblastoma (1 line; HepG2), and embryonic hepatocyte (1 line; WRL). Five tested cell lines showed the resistance to Fas‐mediated cell death by the pretreatment of HGF. This HGF‐induced cell survival was suppressed by wortmannin (Akt/PI‐3 kinase pathway inhibitor), suggesting an involvement of Akt. When cells were pretreated with HGF, Fas‐mediated cell death was suppressed, followed by Akt phosphorylation at Ser473. Fas‐death–inducing signaling complex (DISC) formation, especially FADD and caspase 8 interaction, was suppressed by HGF and the suppression of the Akt/PI‐3 kinase pathway by transient expression of PTEN, resulting in acquisition of Fas‐DISC formation and Fas‐mediated cell death in HGF‐treated cells. We suggest that HGF promotes cell survival in hepatocyte‐derived cell lines (HCC, hepatoblastoma, and embryonic hepatocyte) from Fas‐mediated cell death via Fas‐DISC suppression as a result of Akt activation.

Journal

HepatologyWolters Kluwer Health

Published: Oct 1, 2000

There are no references for this article.