Abstract
The paradoxical role of ER stress in malignant diseases is only just being unraveled and remains incompletely understood. A particular challenge is the complex interplay between spaciotemporal and locoregional microenvironmental constraints in solid tumors and stress responses upon treatment; thus, the potential for new combinatorial therapeutic options to foster the coincidence of ER stress-related deadly events is likely to be underestimated. Without claiming this review to be complete, we present a comprehensive overview of the signaling mechanisms associated with the unfolded protein response (UPR) and the molecular link to cell survival and death mechanisms. We (i) delineate the mechanistic scenario and outcome of the UPR; (ii) discuss the role of ER stress in cancer development and progression; (iii) highlight the impact of various environmental conditions and stress stimuli, such as nutrient limitation and tumor hypoxia, in this context; and (iv) attempt to shed some light on the putative link between DNA damage, irradiation, and ER stress to emphasize the potential of therapeutic targeting of ER stress pathways for combined cancer treatments.
Keywords: Endoplasmic reticulum stress, unfolded protein response, cancer cell, tumorigenesis, microenvironment, therapy.
Current Medicinal Chemistry
Title:A Complex Scenario and Underestimated Challenge: The Tumor Microenvironment, ER Stress, and Cancer Treatment
Volume: 25 Issue: 21
Author(s): Oleg I. Chen, Yaroslav P. Bobak, Oleh V. Stasyk *Leoni A. Kunz-Schughart *
Affiliation:
- Department of Cell Signaling, Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanov Str. 14/16, Lviv 79005,Ukraine
- OncoRay – National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universitat Dresden and Helmholtz-Zentrum Dresden–Rossendorf, Fetscherstr. 74, 01307 Dresden,Germany
Keywords: Endoplasmic reticulum stress, unfolded protein response, cancer cell, tumorigenesis, microenvironment, therapy.
Abstract: The paradoxical role of ER stress in malignant diseases is only just being unraveled and remains incompletely understood. A particular challenge is the complex interplay between spaciotemporal and locoregional microenvironmental constraints in solid tumors and stress responses upon treatment; thus, the potential for new combinatorial therapeutic options to foster the coincidence of ER stress-related deadly events is likely to be underestimated. Without claiming this review to be complete, we present a comprehensive overview of the signaling mechanisms associated with the unfolded protein response (UPR) and the molecular link to cell survival and death mechanisms. We (i) delineate the mechanistic scenario and outcome of the UPR; (ii) discuss the role of ER stress in cancer development and progression; (iii) highlight the impact of various environmental conditions and stress stimuli, such as nutrient limitation and tumor hypoxia, in this context; and (iv) attempt to shed some light on the putative link between DNA damage, irradiation, and ER stress to emphasize the potential of therapeutic targeting of ER stress pathways for combined cancer treatments.
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Cite this article as:
Chen I. Oleg, Bobak P. Yaroslav, Stasyk V. Oleh *, Kunz-Schughart A. Leoni*, A Complex Scenario and Underestimated Challenge: The Tumor Microenvironment, ER Stress, and Cancer Treatment, Current Medicinal Chemistry 2018; 25 (21) . https://dx.doi.org/10.2174/0929867325666180117110259
DOI https://dx.doi.org/10.2174/0929867325666180117110259 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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