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Updated: Feb 19, 2026

Methods to Classify Cytoplasmic Foci as Mammalian Stress Granules
Published on: May 12, 2017
Post-transcriptional control of stress responses in cancer
Robert F Harvey1, Anne E Willis1
1Medical Research Council Toxicology Unit, Lancaster Rd, Leicester LE1 9HN, UK.
Abstract:
The processes by which the canonical protein synthesis machinery is modified by environmental stresses to allow healthy cells to respond to external conditions to maintain homeostasis, are frequently hijacked by tumour cells to enhance their survival. Two major stress response pathways that play a major role in this regard are the unfolded protein response (UPR) and the DNA damage response (DDR). Recent data have shown that key proteins which coordinate post-transcriptional control, and which are regulated by signalling through the UPR and DDR, are upregulated in cancers and that targeting these proteins/pathways will provide new therapeutic avenues for cancer treatments.
Insights
Cancer cells exploit cellular stress responses, like the unfolded protein response (UPR) and DNA damage response (DDR), for survival. Targeting UPR and DDR-regulated proteins offers new cancer treatment strategies.
Area of Science:
- Molecular Biology
- Cancer Biology
- Cellular Stress Responses
Background:
- Cellular homeostasis relies on protein synthesis machinery adapting to environmental stress.
- Tumour cells often hijack these adaptive stress responses to promote survival and proliferation.
- The unfolded protein response (UPR) and DNA damage response (DDR) are critical stress pathways implicated in cancer progression.
Purpose of the Study:
- To investigate how cancer cells utilize cellular stress response pathways.
- To identify key proteins regulated by UPR and DDR signaling in cancer.
- To explore the therapeutic potential of targeting these proteins and pathways in cancer treatment.
Main Methods:
- Analysis of gene and protein expression related to UPR and DDR pathways in cancer cells.
- Investigating the role of post-transcriptional regulatory proteins in cancer survival under stress.
- Review of current literature on UPR, DDR, and cancer therapeutics.
Main Results:
- Key proteins coordinating post-transcriptional control, regulated by UPR and DDR, are upregulated in various cancers.
- These upregulated proteins contribute to tumour cell survival by manipulating stress responses.
- Signaling pathways involving UPR and DDR are crucial for cancer cell adaptation.
Conclusions:
- Cancer cells exploit UPR and DDR pathways to enhance survival.
- Targeting UPR and DDR-regulated proteins represents a promising therapeutic strategy for cancer.
- Further research into these pathways could yield novel anti-cancer treatments.
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