期刊
COLD SPRING HARBOR PERSPECTIVES IN MEDICINE
卷 2, 期 9, 页码 -出版社
COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
DOI: 10.1101/cshperspect.a007666
关键词
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Overwhelming of protein folding in the endoplasmic reticulum (ER)-referred to as ER stress-activates a set of intracellular signaling pathways termed the unfolded protein response (UPR). Beneficial outputs of the UPR promote adaptation in cells experiencing manageably low levels of ER stress. However, if ER stress reaches critically high levels, the UPR uses destructive outputs to trigger programmed cell death. Genetic mutations in various UPR components cause inherited syndromes of diabetes mellitus in both rodents and humans, implicating the UPR in the proper functioning and survival of pancreatic islet beta cells. Markers of chronically elevated ER stress, terminal UPR signaling, and apoptosis are evident in b cells in these rare disorders; these markers are similarly present in islets of human patients with common forms of diabetes. These findings promise to enhance our molecular understanding of human diabetes significantly and may lead to new and effective therapies.
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