alexa Identification of a small molecule activator of SIRT1 gene expression.
Chemistry

Chemistry

Natural Products Chemistry & Research

Author(s): Cho SY, Cho M, Seo DB, Lee SJ, Suh Y

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Abstract Increased SIRT1 expression exerts beneficial effects in transgenic animal models, ameliorating the onset and progression of aging-related disease phenotypes in various organs including the heart. The potential beneficial effects of SIRT1 have made SIRT1 a prime therapeutic target for age-related diseases and considerable efforts led to the identification of small molecule activator of SIRT1 protein. Thus far, however, a small molecule activator of SIRT1 gene expression has not been reported. Here, we report that syringaresinol, isolated from Panax ginseng berry pulp, is an activator of SIRT1 gene expression. Using human umbilical endothelial cells (HUVECs), we show that syringaresinol treatment induced binding of FOXO3 to the SIRT1 promoter in a sequence-specific manner, leading to induction of SIRT1 expression. Increased SIRT1 expression in HUVECs by syringaresinol treatment delayed cellular senescence and improved various markers of endothelial functions in a FOXO3 dependent manner. Collectively, these findings bring to light a new transcription activator of SIRT1 that may have therapeutic potential.
This article was published in Aging (Albany NY) and referenced in Natural Products Chemistry & Research

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