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Cell Metab. 2006 Nov;4(5):333-4.

EXtENDINg beta cell survival by UPRegulating ATF4 translation.

Author information

1
Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA.

Abstract

In this issue of Cell Metabolism, Daniel Drucker and colleagues (Yusta et al., 2006) explore how the incretin mimetic exendin-4 improves beta cell function and survival during ER stress. Their findings suggest that protein kinase A signaling elicited by GLP-1 receptor activation differentially modulates one arm of the unfolded protein response (UPR). Regulation of this UPR pathway leads to enhanced translational expression of ATF4, a transcription factor central for stress remedy and cell survival.

PMID:
17084705
DOI:
10.1016/j.cmet.2006.10.006
[Indexed for MEDLINE]
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