Sestrin activators for preventing and/or attenuating skin ageing and/or hydrating the skin and/or for regulating skin pigmentation
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United States of America Patent
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Aug 18, 2020
Grant Date -
Sep 28, 2017
app pub date -
Sep 25, 2015
filing date -
Sep 26, 2014
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Abstract
The disclosure relates to the identification and the use of compounds which regulate the expression of at least one Sestrin gene, for preventing and/or attenuating skin ageing, and/or for hydrating the skin and/or for regulating skin pigmentation. The method includes the following steps: a. bringing at least one test compound in contact with a sample of human keratinocytes or melanocytes; b. measuring the expression of at least one Sestrin gene chosen from SESN3, SESN2 and SESN1 in the keratinocytes or melanocytes; c. selecting the compounds for which an activation of at least 1.6 fold of the expression of at least one of the genes is measured in the keratinocytes treated in a. compared with the untreated keratinocytes, or for which a significant modulation of the expression of at least one of the genes is measured in the melanocytes treated in a. compared with the untreated melanocytes.
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