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Cosmetics 2015, 2(3), 236-247; doi:10.3390/cosmetics2030236

GHK-Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes

Skin Biology, Research & Development Department, 4122 Factoria Boulevard SE, Suite No. 200, Bellevue, WA 98006, USA
These authors contributed equally to this work.
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Author to whom correspondence should be addressed.
Academic Editor: Martina Meinke
Received: 17 June 2015 / Revised: 8 July 2015 / Accepted: 21 July 2015 / Published: 28 July 2015
(This article belongs to the Special Issue The Antioxidant Potential of the Skin)
View Full-Text   |   Download PDF [843 KB, uploaded 28 July 2015]   |  

Abstract

The copper binding tripeptide GHK (glycyl-l-histidyl-l-lysine) is a naturally occurring plasma peptide that significantly declines during human aging. It has been established that GHK:Copper(2+) improves wound healing and tissue regeneration and stimulates collagen and decorin production. GHK-Cu also supports angiogenesis and nerve outgrowth, improves the condition of aging skin and hair, and possesses antioxidant and anti-inflammatory effects. In addition, it increases cellular stemness and secretion of trophic factors by mesenchymal stem cells. GHK’s antioxidant actions have been demonstrated in vitro and in animal studies. They include blocking the formation of reactive oxygen and carbonyl species, detoxifying toxic products of lipid peroxidation such as acrolein, protecting keratinocytes from lethal Ultraviolet B (UVB) radiation, and blocking hepatic damage by dichloromethane radicals. In recent studies, GHK has been found to switch gene expression from a diseased state to a healthier state for certain cancers and for chronic obstructive pulmonary disease (COPD). The Broad Institute’s Connectivity Map indicated that GHK induces a 50% or greater change of expression in 31.2% of human genes. This paper reviews biological data demonstrating positive effects of GHK in skin and proposes interaction with antioxidant-related genes as a possible explanation of its antioxidant activity. View Full-Text
Keywords: copper peptides; GHK; glycyl-l-histidyl-l-lysine; reactive oxygen species; reactive carbonyl species; ferritin iron oxidation; dichloromethane; gene profiling; gene expression copper peptides; GHK; glycyl-l-histidyl-l-lysine; reactive oxygen species; reactive carbonyl species; ferritin iron oxidation; dichloromethane; gene profiling; gene expression
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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MDPI and ACS Style

Pickart, L.; Vasquez-Soltero, J.M.; Margolina, A. GHK-Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes. Cosmetics 2015, 2, 236-247.

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