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A focused natural compound screen reveals senolytic and senostatic effects of Isatis tinctoria
Eun-Jung Kim 1, Jieun Woo 2, Seoungwoo Shin 2, HaeBeen Choi 1 3, Youngseok Kim 4, Junoh Kim 4, Chanhee Kang 1 3
...Here, we performed a focused compound screen to identify natural products that exert anti-senescence effects. We found that Isatis tinctoria, woad extracts, displayed a senolytic effect on senescent human skin fibroblasts. Furthermore, treatment with woad extracts attenuated the expression of pro-inflammatory senescence-associated secretory phenotype (SASP), showing a senostatic activity. Intriguingly, woad extracts displayed only a marginal cytotoxic effect toward senescent human lung fibroblasts. Thus, our results reveal the potential activities of woad extracts for targeting skin senescence and suggest that woad extracts could be an attractive ingredient for cosmetics to prevent skin aging.