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Blocking negative effects of senescence in human skin fibroblasts with a plant extract.

Ingo LämmermannLucia Terlecki-ZaniewiczRegina WeinmüllnerMarkus SchossererHanna DellagoAndré Dargen de Matos BrancoDominik AutheriedBenjamin SevcnikarLisa KleisslIrina BerlinFrédérique MorizotFrancois LejeuneNicola FuzzatiSandra ForestierAlix ToribioAnaïs TromeurLionel WeinbergJuan Carlos Higareda-AlmarazMarcel ScheidelerMarion RietveldAbdoel El GhalbzouriErwin TschachlerFlorian GruberJohannes Grillari
Published in: NPJ aging and mechanisms of disease (2018)
There is increasing evidence that senescent cells are a driving force behind many age-related pathologies and that their selective elimination increases the life- and healthspan of mice. Senescent cells negatively affect their surrounding tissue by losing their cell specific functionality and by secreting a pro-tumorigenic and pro-inflammatory mixture of growth hormones, chemokines, cytokines and proteases, termed the senescence-associated secretory phenotype (SASP). Here we identified an extract from the plant Solidago virgaurea subsp. alpestris, which exhibited weak senolytic activity, delayed the acquisition of a senescent phenotype and induced a papillary phenotype with improved functionality in human dermal fibroblasts. When administered to stress-induced premature senescent fibroblasts, this extract changed their global mRNA expression profile and particularly reduced the expression of various SASP components, thereby ameliorating the negative influence on nearby cells. Thus, the investigated plant extract represents a promising possibility to block age-related loss of tissue functionality.
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