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Reductive stress in cancer.

Leilei Zhang1, Kenneth D Tew1

  • 1Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, United States.

Advances in Cancer Research
|August 6, 2021
PubMed
Summary
This summary is machine-generated.

Reductive stress, an imbalance of reducing agents like NADH, impacts cell signaling and metabolism. Understanding this condition is crucial for cancer therapy and disease progression insights.

Keywords:
Cellular homeostasisGSHNADHNADPHOxidative stressROSReducing equivalentsReductive stress

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Oncology

Background:

  • Reductive stress arises from excess reducing equivalents (NADH, NADPH, GSH) overwhelming antioxidant capacity.
  • This imbalance disrupts cellular signaling, protein structure, mitochondrial function, and metabolism.
  • Paradoxically, reductive stress can lead to increased reactive oxygen species (ROS) production.

Purpose of the Study:

  • To define reductive stress and its molecular underpinnings.
  • To explore the role of reductive stress in cancer biology.
  • To investigate the potential of targeting reductive stress in cancer therapeutics.

Main Methods:

  • Review of existing literature on redox biology and cancer.
  • Analysis of cellular pathways affected by reductive stress.
  • Discussion of Nrf2's role in regulating reductive stress.

Main Results:

  • Reductive stress perturbs critical cellular processes including signaling and metabolism.
  • Cancer cells may utilize distinct redox pools under reductive stress.
  • Nrf2, a transcription factor, influences reductive stress balance.

Conclusions:

  • Reductive stress is a significant cellular condition with implications for cancer.
  • Further research into selective induction of reductive stress could impact cancer treatment strategies.
  • Understanding reductive stress is key to advancing cancer management and understanding disease progression.