Abstract
Mammalian cells are prone to tumorigenesis when suffering the genotoxic stresses, and the existence of the tumor suppressors validly decrease this possibility. Gadd45α is one of the growth arrest and DNA damage-inducible (Gadd) 45 gene family members and serves as a stress sensor and tumor suppressor under most stress conditions, which is evidenced by cell cycle arrest, DNA repair, senescence or apoptosis triggered by induction of GADD45α expression. However, some recent reports have challenged this notion by demonstrating the correlation of GADD45α expression to cell survival and even progression of certain tumor cells. Therefore, GADD45?? seems to exert multiple roles in stress signaling and tumor development. Elucidation of the related mechanisms will be helpful for the establishment of novel tumor therapeutic strategy targeting GADD45α.
Keywords: GADD45α, Stress, Tumor suppressor, Tumor progression
Current Protein & Peptide Science
Title: Diverse Roles of GADD45α in Stress Signaling
Volume: 10 Issue: 4
Author(s): Ming Gao, Ning Guo, Chuanshu Huang and Lun Song
Affiliation:
Keywords: GADD45α, Stress, Tumor suppressor, Tumor progression
Abstract: Mammalian cells are prone to tumorigenesis when suffering the genotoxic stresses, and the existence of the tumor suppressors validly decrease this possibility. Gadd45α is one of the growth arrest and DNA damage-inducible (Gadd) 45 gene family members and serves as a stress sensor and tumor suppressor under most stress conditions, which is evidenced by cell cycle arrest, DNA repair, senescence or apoptosis triggered by induction of GADD45α expression. However, some recent reports have challenged this notion by demonstrating the correlation of GADD45α expression to cell survival and even progression of certain tumor cells. Therefore, GADD45?? seems to exert multiple roles in stress signaling and tumor development. Elucidation of the related mechanisms will be helpful for the establishment of novel tumor therapeutic strategy targeting GADD45α.
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Cite this article as:
Gao Ming, Guo Ning, Huang Chuanshu and Song Lun, Diverse Roles of GADD45α in Stress Signaling, Current Protein & Peptide Science 2009; 10 (4) . https://dx.doi.org/10.2174/138920309788922216
DOI https://dx.doi.org/10.2174/138920309788922216 |
Print ISSN 1389-2037 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5550 |
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