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J. Clin. Med. 2016, 5(2), 15; doi:10.3390/jcm5020015

Omega-3 Fatty Acids and Cancer Cell Cytotoxicity: Implications for Multi-Targeted Cancer Therapy

1
Department of Molecular Medicine, Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00161 Rome, Italy
2
Department of Ecological and Biological Sciences (DEB), La Tuscia University, Largo dell’Università, 01100 Viterbo, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Lindsay Brown, Bernhard Rauch and Hemant Poudyal
Received: 15 December 2015 / Revised: 15 January 2016 / Accepted: 19 January 2016 / Published: 26 January 2016
(This article belongs to the Special Issue Omega-3 Fatty Acids in Health and Disease)
View Full-Text   |   Download PDF [1134 KB, uploaded 3 February 2016]   |  

Abstract

Cancer is a major disease worldwide. Despite progress in cancer therapy, conventional cytotoxic therapies lead to unsatisfactory long-term survival, mainly related to development of drug resistance by tumor cells and toxicity towards normal cells. n-3 polyunsaturated fatty acids (PUFAs), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), can exert anti-neoplastic activity by inducing apoptotic cell death in human cancer cells either alone or in combination with conventional therapies. Indeed, n-3 PUFAs potentially increase the sensitivity of tumor cells to conventional therapies, possibly improving their efficacy especially against cancers resistant to treatment. Moreover, in contrast to traditional therapies, n-3 PUFAs appear to cause selective cytotoxicity towards cancer cells with little or no toxicity on normal cells. This review focuses on studies investigating the cytotoxic activity of n-3 PUFAs against cancer cells via apoptosis, analyzing the molecular mechanisms underlying this effective and selective activity. Here, we highlight the multiple molecules potentially targeted by n-3 PUFAs to trigger cancer cell apoptosis. This analysis can allow a better comprehension of the potential cytotoxic therapeutic role of n-3 PUFAs against cancer, providing specific information and support to design future pre-clinical and clinical studies for a better use of n-3 PUFAs in cancer therapy, mainly combinational therapy. View Full-Text
Keywords: fatty acids (FAs); n-3 polyunsaturated fatty acids (PUFAs); docosahexaenoic acid (DHA); eicosapentaenoic acid (EPA); apoptosis; cytotoxicity; cancer therapy; combinational therapy; drug resistance; cancer stem cells fatty acids (FAs); n-3 polyunsaturated fatty acids (PUFAs); docosahexaenoic acid (DHA); eicosapentaenoic acid (EPA); apoptosis; cytotoxicity; cancer therapy; combinational therapy; drug resistance; cancer stem cells
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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D’Eliseo, D.; Velotti, F. Omega-3 Fatty Acids and Cancer Cell Cytotoxicity: Implications for Multi-Targeted Cancer Therapy. J. Clin. Med. 2016, 5, 15.

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