Unveiling the Power of Fatty Acid Oxidation in Cancer Progression and Therapy

The role of FAO in cancer. FAO provides three essential substances for tumor metabolism, namely acetyl-CoA, NADPH, and ATP.

The process and regulation of FAO.

FAO in the TME.

SHANNON, CLARE, IRELAND, April 28, 2025 /EINPresswire.com/ -- This new review article published in Genes & Diseases sheds light on the pivotal role of fatty acid oxidation (FAO) in the complex landscape of cancer metabolism. Traditionally overshadowed by the widely recognized Warburg effect, FAO is now emerging as a crucial metabolic pathway that fuels tumor development, influences drug resistance, and presents promising therapeutic targets.

This article highlights how certain cancer cells depend on FAO as a primary energy source, enabling their growth, survival, and metastasis. Unlike normal cells, many tumors exhibit a shift towards enhanced FAO, leveraging this process to sustain energy production, support epigenetic modifications, and maintain immune evasion. The authors emphasize how metabolic reprogramming through FAO provides cancer cells with a strategic advantage, allowing them to thrive even under conditions of nutrient scarcity.

One of the most striking revelations is FAO’s direct involvement in chemotherapy resistance. Tumors that activate FAO can counteract the oxidative stress induced by treatment, reducing apoptosis and making conventional therapies less effective. The upregulation of FAO has been particularly noted in breast cancer, glioblastoma, and ovarian cancer, where it contributes to aggressive tumor behavior and metastasis.

Beyond its role in fueling tumors, FAO also plays a key part in regulating the tumor microenvironment (TME). By influencing immune cell activity, FAO modulates the body's natural defense mechanisms against cancer. The review explores how targeting FAO can open new avenues for oncotherapy, offering a promising strategy to disrupt cancer cell metabolism while minimizing harm to healthy tissues.

Given its growing importance in cancer biology, FAO is gaining recognition as a therapeutic vulnerability. The review outlines potential FAO inhibitors, such as carnitine palmitoyltransferase (CPT1) blockers, which show promise in sensitizing tumors to chemotherapy and radiotherapy. By disrupting FAO-dependent survival mechanisms, these interventions could enhance the efficacy of existing treatments.

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Genes & Diseases publishes rigorously peer-reviewed and high quality original articles and authoritative reviews that focus on the molecular bases of human diseases. Emphasis is placed on hypothesis-driven, mechanistic studies relevant to pathogenesis and/or experimental therapeutics of human diseases. The journal has worldwide authorship, and a broad scope in basic and translational biomedical research of molecular biology, molecular genetics, and cell biology, including but not limited to cell proliferation and apoptosis, signal transduction, stem cell biology, developmental biology, gene regulation and epigenetics, cancer biology, immunity and infection, neuroscience, disease-specific animal models, gene and cell-based therapies, and regenerative medicine.
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Reference
Jialin Ma, Shuxian Wang, Pingfeng Zhang, Sihao Zheng, Xiangpan Li, Juanjuan Li, Huadong Pei, Emerging roles for fatty acid oxidation in cancer, Genes & Diseases, Volume 12, issue 4, 2025, 101491, https://doi.org/10.1016/j.gendis.2024.101491.

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