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Int. J. Mol. Sci. 2015, 16(5), 9236-9282;

In Vitro and in Vivo Antitumoral Effects of Combinations of Polyphenols, or Polyphenols and Anticancer Drugs: Perspectives on Cancer Treatment

Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome 00133, Italy
Department of Experimental Medicine, University of Rome "Sapienza", Rome 00164, Italy
Dipartimento di Scienze Motorie, Umane e della Salute, Università di Roma, Foro Italico, Rome 00194, Italy
Author to whom correspondence should be addressed.
Academic Editor: Sanjay K. Srivastava
Received: 13 February 2015 / Revised: 9 April 2015 / Accepted: 15 April 2015 / Published: 24 April 2015
(This article belongs to the Special Issue Bioactive Phytochemicals in Functional Foods for Cancer Prevention)
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Carcinogenesis is a multistep process triggered by genetic alterations that activate different signal transduction pathways and cause the progressive transformation of a normal cell into a cancer cell. Polyphenols, compounds ubiquitously expressed in plants, have anti-inflammatory, antimicrobial, antiviral, anticancer, and immunomodulatory properties, all of which are beneficial to human health. Due to their ability to modulate the activity of multiple targets involved in carcinogenesis through direct interaction or modulation of gene expression, polyphenols can be employed to inhibit the growth of cancer cells. However, the main problem related to the use of polyphenols as anticancer agents is their poor bioavailability, which might hinder the in vivo effects of the single compound. In fact, polyphenols have a poor absorption and biodistribution, but also a fast metabolism and excretion in the human body. The poor bioavailability of a polyphenol will affect the effective dose delivered to cancer cells. One way to counteract this drawback could be combination treatment with different polyphenols or with polyphenols and other anti-cancer drugs, which can lead to more effective antitumor effects than treatment using only one of the compounds. This report reviews current knowledge on the anticancer effects of combinations of polyphenols or polyphenols and anticancer drugs, with a focus on their ability to modulate multiple signaling transduction pathways involved in cancer. View Full-Text
Keywords: polyphenols; bioavailability; carcinogenesis; anticancer drugs; nanotechnology polyphenols; bioavailability; carcinogenesis; anticancer drugs; nanotechnology

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Fantini, M.; Benvenuto, M.; Masuelli, L.; Frajese, G.V.; Tresoldi, I.; Modesti, A.; Bei, R. In Vitro and in Vivo Antitumoral Effects of Combinations of Polyphenols, or Polyphenols and Anticancer Drugs: Perspectives on Cancer Treatment. Int. J. Mol. Sci. 2015, 16, 9236-9282.

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