Journal
CONNECTIVE TISSUE RESEARCH
Volume 53, Issue 5, Pages 373-378Publisher
TAYLOR & FRANCIS INC
DOI: 10.3109/03008207.2012.665970
Keywords
fibrillin; copper oxide; extracellular matrix; antioxidant-skin aging; wound healing
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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-beta (TGF-beta), 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-beta 1, 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-beta 1, VEGF, and inhibition of oxidative stress effects at physiological concentrations; and supports its use in cosmetics.
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