In-vitro Characterization of Silk Sericin as an Anti-aging Agent

Thitinan Kitisin, Pannamas Maneekan and Natthanej Luplertlop

Journal of Agricultural Science, 2013, vol. 5, issue 3, 54

Abstract: Silk sericin is a natural macromolecular protein derived from the silkworm, Bombyx mori. It is also a by-product of silk-making. From previous reports, many cosmeceuticals and other cosmetic products have been developed with silk sericin. This study aimed to investigate an anti-aging property of silk sericin by in-vitro characterization using fibroblast cell culture model. The results showed that silk sericin can stimulate collagen type I synthesis, suppress the regulation of nitrite, which nitrite may induces oxidative stress, and up-regulate the expression of b-cell lymphoma 2 (bcl-2) to inhibit cell apoptosis, without altering fibroblast growth kinetics or cellular ultrastructure. Sericin anti-aging properties were comparable to vitamin C, except for oxidative stress, where silk sericin was superior. The results suggested that silk sericin possesses anti-aging properties that could be usefully incorporated into high-quality cosmetics, cosmeceuticals, and food supplements.

Date: 2013
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