Metabolic Reprogramming: A Friend or Foe to Cancer Therapy?

Christopher McCann1, Emma M Kerr1

  • 1Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, 97 Lisburn Rd, BT9 7AE Belfast, Ireland.

Cancers
|July 20, 2021
PubMed

Insights

Cancer cells evade drug treatment by altering metabolism, particularly in mitochondria, to survive stress. Targeting these metabolic vulnerabilities offers new strategies to overcome drug resistance and improve cancer therapy.

Area of Science:

  • Oncology
  • Cancer Metabolism
  • Cellular Biology

Background:

  • Drug resistance is a primary reason for cancer treatment failure, often due to cancer cells escaping therapy-induced cell death.
  • While apoptosis evasion is well-studied, drug resistance mechanisms are complex, involving pathways beyond cell death, including metabolic reprogramming.
  • Mitochondria play a critical role in coordinating cellular responses to stress and maintaining homeostasis, influencing both metabolism and apoptosis.

Purpose of the Study:

  • To review the multifaceted role of cancer metabolism in mediating drug resistance.
  • To explore the potential of exploiting metabolic vulnerabilities to enhance cancer treatment efficacy.
  • To highlight novel therapeutic avenues for overcoming drug resistance by targeting metabolic pathways.

Main Methods:

  • Literature review of recent discoveries in cancer metabolism and drug resistance.
  • Analysis of the interplay between cellular metabolism, mitochondrial function, and cancer cell survival under cytotoxic stress.
  • Examination of how metabolic adaptations contribute to resistance against various cancer therapies.

Main Results:

  • Cancer cells rewire cellular metabolism to support proliferation and survival under therapeutic pressure.
  • Mitochondria are central to coordinating metabolic and apoptotic homeostasis, facilitating resistance.
  • Metabolic pathways are co-opted by cancer cells to evade cell death and promote survival during treatment.

Conclusions:

  • Metabolic reprogramming is a critical mechanism underlying cancer drug resistance.
  • Targeting specific metabolic pathways and dependencies presents a promising strategy to overcome treatment resistance.
  • Exploiting metabolic vulnerabilities offers new opportunities for developing more effective cancer therapies.

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