Modulation of Thymosin Beta-4 in Skin
AssigneeAvon Products, Inc.
InventorsSiming W. Chen, Qian Zheng, Satish Parimoo
Life of this patent
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Abstract
Methods for preventing, ameliorating, or reducing dermatological signs of aging are provided which employ active agents, other than a retinoid, that stimulate thymosin beta-4 expression in the skin. Also provided are methods for screening for substances which stimulate thymosin beta-4 expression levels and the methods of using active agents identified by the screening protocol in the treatment of skin.
Claims18
A method for improving the aesthetic appearance of human skin comprising topically applying to an area of the skin in need thereof an effective amount of an active agent, other than a retinoid, that stimulates human thymosin beta-4 expression, for a time sufficient to improve the aesthetic appearance of said human skin.
A method for identifying at least one active agent useful for improving the aesthetic appearance of skin comprising assaying at least one candidate substance for ability to stimulate thymosin beta-4 expression in at least one of a dermal fibroblast or a epidermal keratinocyte by incubating human dermal fibroblasts or human epidermal keratinocytes with said candidate substance and subsequently measuring the levels of mRNA encoding thymosin beta-4.
A cosmetic composition for improving the aesthetic appearance of human skin comprising a cosmetically acceptable vehicle, and an effective amount of an active agent, other than a retinoid, that upregulates thymosin beta-4, wherein said effective amount of active agent comprises from about 0.00001% to about 90% by weight of the total composition.
Dependencies are inferred from the claim text.