Mushroom extract inhibits ultraviolet B-induced cellular senescence in human keratinocytes

Autor: Shuntaro Yamashita, Mai Kuroda, Yoshinori Katakura, Haruka Matsuo, Kuniyoshi Shimizu, Zhao Chong, Hira Kaji Manandhar, Gopal Prasad Parajuli
Rok vydání: 2018
Předmět:
Zdroj: Cytotechnology. 70:1001-1008
ISSN: 1573-0778
0920-9069
Popis: Mushrooms possess various bioactivities and are used as nutritional supplements and medicinal products. Twenty-nine bioactive components have been extracted recently from mushrooms grown in Nepal. In this study, we evaluated the ability of these mushroom extracts to augment SIRT1, a mammalian SIR2 homologue localized in cytosol and nuclei. We established a system for screening food ingredients that augment the SIRT1 promoter in HaCaT cells, and identified a SIRT1-augmenting mushroom extract (number 28, Trametes versicolor). UVB irradiation induced cellular senescence in HaCaT cells, as evidenced by increased activity and expression of cellular senescence markers including senescence-associated β-galactosidase, p21, p16, phosphorylated p38, and γH2AX. Results clearly showed that the mushroom extract (No. 28) suppressed the ultraviolet B irradiation-induced cellular senescence in HaCaT cells possibly through augmenting SIRT1 expression. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s10616-018-0229-1) contains supplementary material, which is available to authorized users.
Databáze: OpenAIRE