Beneficial Regulation of Fibrillar Collagens, Heat Shock Protein-47, Elastin Fiber Components, Transforming Growth Factor-β1, Vascular Endothelial Growth Factor and Oxidative Stress Effects by Copper in Dermal Fibroblasts.

Autor: Philips, Neena, Samuel, Philips, Parakandi, Harit, Gopal, Sesha, Siomyk, Halyna, Ministro, Abraham, Thompson, Terrel, Borkow, Gadi
Zdroj: Connective Tissue Research; Oct2012, Vol. 53 Issue 5, p373-378, 6p
Abstrakt: Skin aging is associated with the loss of the structural collagens and the elastin fiber components that form the extracellular matrix (ECM). It is associated with reduced transforming growth factor-β (TGF-β), angiogenesis and increased oxidative stress. Copper has been incorporated into cosmetics for anti-skin aging. This research investigated the mechanism for the anti-skin aging effect copper ions, from cuprous oxide powders. Dermal fibroblasts were exposed to copper and examined for expression (protein and/or promoter levels) of types I, III, V collagen, heat shock protein-47 (HSP-47), elastin, fibrillin-1, and fibrillin-2, TGF-β1, vascular endothelial growth factor (VEGF), and in addition for membrane damage and lipid peroxidation. The direct antioxidant activity of copper was also determined. The research indicates that copper's anti-skin aging and skin regeneration potential is through its stimulation of ECM proteins, TGF-β1, VEGF, and inhibition of oxidative stress effects at physiological concentrations; and supports its use in cosmetics. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje