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Biochim Biophys Acta. 2014 Oct;1843(10):2143-9. doi: 10.1016/j.bbamcr.2014.01.012. Epub 2014 Jan 16.

Endoplasmic reticulum stress associated responses in cancer.

Author information

1
Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G 2H7, Canada.
2
Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G 2H7, Canada. Electronic address: marek.michalak@ualberta.ca.

Abstract

The endoplasmic reticulum (ER) is responsible for many housekeeping functions within the cell and is an important site for pathways that regulates its state of homeostasis. When cellular states perturb ER functions, a phenomenon termed "ER stress" activates a number of pathways to counteract the associated damages; these pathways are together called the unfolded protein response (UPR). The UPR has a dualistic function; it exists to alleviate damage associated with ER stress, however, if this is not possible, then it signals for cell death through apoptosis. Cancer cells are shown to be very resilient under extreme environmental stress and an increasing number of studies have indicated that this may be largely due to an altered state of the UPR. The role of ER stress and the UPR in cancer is still not clear, however many components are involved and may prove to be promising targets in future anti-cancer therapy. This article is part of a Special Issue entitled: Calcium Signaling in Health and Disease. Guest Editors: Geert Bultynck, Jacques Haiech, Claus W. Heizmann, Joachim Krebs, and Marc Moreau.

KEYWORDS:

Cancer; Endoplasmic reticulum stress; Unfolded protein response

PMID:
24440276
DOI:
10.1016/j.bbamcr.2014.01.012
[Indexed for MEDLINE]
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