Unfolded protein response in cancer: the Physician's perspective

The unfolded protein response (UPR) is a cascade of intracellular stress signaling events in response to an accumulation of unfolded or misfolded proteins in the lumen of the endoplasmic reticulum (ER). Cancer cells are often exposed to hypoxia, nutrient starvation, oxidative stress and other metabo...

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Main Authors: Li, Xuemei, Zhang, Kezhong, Li, Zihai
Format: Online
Language:English
Published: BioMed Central 2011
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3060154/
id pubmed-3060154
recordtype oai_dc
spelling pubmed-30601542011-03-18 Unfolded protein response in cancer: the Physician's perspective Li, Xuemei Zhang, Kezhong Li, Zihai Review The unfolded protein response (UPR) is a cascade of intracellular stress signaling events in response to an accumulation of unfolded or misfolded proteins in the lumen of the endoplasmic reticulum (ER). Cancer cells are often exposed to hypoxia, nutrient starvation, oxidative stress and other metabolic dysregulation that cause ER stress and activation of the UPR. Depending on the duration and degree of ER stress, the UPR can provide either survival signals by activating adaptive and antiapoptotic pathways, or death signals by inducing cell death programs. Sustained induction or repression of UPR pharmacologically may thus have beneficial and therapeutic effects against cancer. In this review, we discuss the basic mechanisms of UPR and highlight the importance of UPR in cancer biology. We also update the UPR-targeted cancer therapeutics currently in clinical trials. BioMed Central 2011-02-23 /pmc/articles/PMC3060154/ /pubmed/21345215 http://dx.doi.org/10.1186/1756-8722-4-8 Text en Copyright ©2011 Li et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Li, Xuemei
Zhang, Kezhong
Li, Zihai
spellingShingle Li, Xuemei
Zhang, Kezhong
Li, Zihai
Unfolded protein response in cancer: the Physician's perspective
author_facet Li, Xuemei
Zhang, Kezhong
Li, Zihai
author_sort Li, Xuemei
title Unfolded protein response in cancer: the Physician's perspective
title_short Unfolded protein response in cancer: the Physician's perspective
title_full Unfolded protein response in cancer: the Physician's perspective
title_fullStr Unfolded protein response in cancer: the Physician's perspective
title_full_unstemmed Unfolded protein response in cancer: the Physician's perspective
title_sort unfolded protein response in cancer: the physician's perspective
description The unfolded protein response (UPR) is a cascade of intracellular stress signaling events in response to an accumulation of unfolded or misfolded proteins in the lumen of the endoplasmic reticulum (ER). Cancer cells are often exposed to hypoxia, nutrient starvation, oxidative stress and other metabolic dysregulation that cause ER stress and activation of the UPR. Depending on the duration and degree of ER stress, the UPR can provide either survival signals by activating adaptive and antiapoptotic pathways, or death signals by inducing cell death programs. Sustained induction or repression of UPR pharmacologically may thus have beneficial and therapeutic effects against cancer. In this review, we discuss the basic mechanisms of UPR and highlight the importance of UPR in cancer biology. We also update the UPR-targeted cancer therapeutics currently in clinical trials.
publisher BioMed Central
publishDate 2011
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3060154/
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