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Updated: Oct 27, 2025

Author Spotlight: Transmitochondrial Cybrid Generation Using Cancer Cell Lines
Published on: March 17, 2023
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.
Abstract:
Drug resistance is a major cause of cancer treatment failure, effectively driven by processes that promote escape from therapy-induced cell death. The mechanisms driving evasion of apoptosis have been widely studied across multiple cancer types, and have facilitated new and exciting therapeutic discoveries with the potential to improve cancer patient care. However, an increasing understanding of the crosstalk between cancer hallmarks has highlighted the complexity of the mechanisms of drug resistance, co-opting pathways outside of the canonical "cell death" machinery to facilitate cell survival in the face of cytotoxic stress. Rewiring of cellular metabolism is vital to drive and support increased proliferative demands in cancer cells, and recent discoveries in the field of cancer metabolism have uncovered a novel role for these programs in facilitating drug resistance. As a key organelle in both metabolic and apoptotic homeostasis, the mitochondria are at the forefront of these mechanisms of resistance, coordinating crosstalk in the event of cellular stress, and promoting cellular survival. Importantly, the appreciation of this role metabolism plays in the cytotoxic response to therapy, and the ability to profile metabolic adaptions in response to treatment, has encouraged new avenues of investigation into the potential of exploiting metabolic addictions to improve therapeutic efficacy and overcome drug resistance in cancer. Here, we review the role cancer metabolism can play in mediating drug resistance, and the exciting opportunities presented by imposed metabolic vulnerabilities.
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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