Abstract
Cellular senescence influences tumor suppression and progress, tissue repair and regeneration, tissue and organismal aging, and age-related diseases. Aging intervention might be an advantageous target for prevention and treatment of diverse age-related diseases. In this study, we investigated whether (-)-loliolide purified from the crude extract of Polygonum aviculare exerted inhibitory activity against cellular senescence in human dermal fibroblasts (HDFs). (-)-Loliolide diminished senescence-associated β-galactosidase activity (SA-β-gal), the level of p21 protein, and the level of reactive oxygen species in senescent cells induced by adriamycin treatment. (-)-Loliolide also attenuated SA-β-gal activity in HDFs under replicative senescence. These findings imply that (-)-loliolide rescues cellular senescence in HDFs and might be useful for the development of dietary supplements or cosmetics that ameliorate tissue aging or age-associated diseases.
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