PMID- 29421170 OWN - NLM STAT- MEDLINE DCOM- 20190401 LR - 20190401 IS - 1872-9452 (Electronic) IS - 0098-2997 (Linking) VI - 61 DP - 2018 Jun TI - Plant bioactives and redox signaling: (-)-Epicatechin as a paradigm. PG - 31-40 LID - S0098-2997(18)30002-5 [pii] LID - 10.1016/j.mam.2018.01.007 [doi] AB - Polyphenols are bioactives claimed to be responsible for some of the health benefits provided by fruit and vegetables. It is currently accepted that the bioactivities of polyphenols can be mostly ascribed to their interactions with proteins and lipids. Such interactions can affect cell oxidant production and cell signaling, and explain in part the ability of polyphenols to promote health. EC can modulate redox sensitive signaling by: i) defining the extent of oxidant levels that can modify cell signaling, function, and fate, e.g. regulating enzymes that generate superoxide, hydrogen peroxide and nitric oxide; or ii) regulating the activation of transcription factors sensible to oxidants. The latter includes the regulation of the nuclear factor E2-related factor 2 (Nfr2) pathway, which in turn can promote the synthesis of antioxidant defenses, and of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB) pathway, which mediates the expression of oxidants generating enzymes, as well as proteins not involved in redox reactions. In summary, a significant amount of data vindicates the participation of EC in redox regulated signaling pathways. Progress in the understanding of the molecular mechanisms involved in EC biological actions will help to define recommendations in terms of which fruit and vegetables are healthier and the amounts necessary to provide health effects. CI - Copyright (c) 2018 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Fraga, Cesar G AU - Fraga CG AD - Fisicoquimica, Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquimica y Medicina Molecular (IBIMOL), Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina; Department of Nutrition, University of California, Davis, USA. Electronic address: cfraga@ffyb.uba.ar. FAU - Oteiza, Patricia I AU - Oteiza PI AD - Department of Nutrition, University of California, Davis, USA; Department of Environmental Toxicology, University of California, Davis, USA. FAU - Galleano, Monica AU - Galleano M AD - Fisicoquimica, Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquimica y Medicina Molecular (IBIMOL), Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Review DEP - 20180210 PL - England TA - Mol Aspects Med JT - Molecular aspects of medicine JID - 7603128 RN - 0 (Antioxidants) RN - 0 (Phytochemicals) RN - 8R1V1STN48 (Catechin) SB - IM MH - Animals MH - Antioxidants/metabolism MH - Catechin/chemistry/*metabolism MH - Humans MH - Oxidation-Reduction MH - Phytochemicals/chemistry/*metabolism MH - Plants/*metabolism MH - *Signal Transduction OTO - NOTNLM OT - Antioxidants OT - Flavonoid OT - NADPH-oxidase OT - NF-kappaB OT - Nitric oxide OT - Nrf2 OT - Oxygen radicals OT - Polyphenols OT - Superoxide EDAT- 2018/02/09 06:00 MHDA- 2019/04/02 06:00 CRDT- 2018/02/09 06:00 PHST- 2018/01/04 00:00 [received] PHST- 2018/01/25 00:00 [revised] PHST- 2018/01/25 00:00 [accepted] PHST- 2018/02/09 06:00 [pubmed] PHST- 2019/04/02 06:00 [medline] PHST- 2018/02/09 06:00 [entrez] AID - S0098-2997(18)30002-5 [pii] AID - 10.1016/j.mam.2018.01.007 [doi] PST - ppublish SO - Mol Aspects Med. 2018 Jun;61:31-40. doi: 10.1016/j.mam.2018.01.007. Epub 2018 Feb 10.