Molecular Mechanisms Associated with the Inhibitory Role of Long Chain n-3 PUFA in Colorectal Cancer

Author:

Jayathilake Abilasha Gayani1,Luwor Rodney Brain23,Nurgali Kulmira124,Su Xiao Qun1ORCID

Affiliation:

1. Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia

2. The University of Melbourne, Melbourne, VIC, Australia

3. Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia

4. Australian Institute for Muscular Skeletal Science (AIMSS), Melbourne, VIC, Australia

Abstract

Colorectal cancer (CRC) is the third leading cause of cancer-related death in the world. Multiple evidence suggests that there is an association between excess fat consumption and the risk of CRC. The long chain n-3 polyunsaturated fatty acids (LC n-3 PUFA), especially eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are essential for human health, and both in vitro and in vivo studies have shown that these fatty acids can prevent CRC development through various molecular mechanisms. These include the modulation of arachidonic acid (AA) derived prostaglandin synthesis, alteration of growth signaling pathways, arrest of the cell cycle, induction of cell apoptosis, suppression of angiogenesis and modulation of inflammatory response. Human clinical studies found that LC n-3 PUFA combined with chemotherapeutic agents can improve the efficacy of treatment and reduce the dosage of chemotherapy and associated side effects. In this review, we discuss comprehensively the anti-cancer effects of LC n-3 PUFA on CRC, with a main focus on the underlying molecular mechanisms.

Publisher

SAGE Publications

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