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.

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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