TY - JOUR ID - 250558 TI - Amentoflavone Induces Autophagy and Modulates p53 JO - Cell Journal (Yakhteh) JA - CELLJ LA - en SN - 2228-5806 AU - Park, Hye-Jung AU - Kim, Moon-Moo AD - Department of Chemistry and Biology, Dong-Eui University, Busan, Republic of Korea AD - Department of Applied Chemistry, Dong-Eui University, Busan, Republic of Korea Y1 - 2018 PY - 2018 VL - 21 IS - 1 SP - 27 EP - 34 KW - Aging KW - Amentoflavone KW - autophagy KW - p53 KW - SIRT1 DO - 10.22074/cellj.2019.5717 N2 - ObjectiveAmentoflavone is the main component of Selaginella tamariscina widely known as an oriental traditional medicinal stuff that has been known to have a variety of medicinal effects such as the induction of apoptosis, anti- metastasis, and anti-inflammation. However, the effect of amentoflavone on autophagy has not been reported until now. The aim of this study was to investigate whether amentoflavone has a positive effect on the induction of autophagy related to cell aging. Materials and Methods In this experimental study, the aging of young cells was induced by the treatment with insulin- like growth factor-1 (IGF-1) at 50 ng/mL three times every two days. The effect of amentoflavone on the cell viability was evaluated in A549 and WI-38 cells using 3-(4,5-dimethyl-2-yl)-2,5- diphenyl tetrazolium bromide (MTT) assay. The induction of autophagy was detected using autophagy detection kit. The expression of proteins related to autophagy and IGF-1 signaling pathway was examined by western blot analysis and immunofluorescence assay. Results First of all, it was found that amentoflavone induces the formation of autophagosome. In addition, it enhanced the expression level of Atg7 and increased the expression levels of Beclin1, Atg3, and LC3 associated with the induction of autophagy in immunofluorescence staining and western blot analyses. Moreover, amentoflavone inhibited the cell aging induced by IGF-1 and hydrogen peroxide. In particular, the levels of p53 and p-p21 proteins were increased in the presence of amentoflavone. Furthermore, amentoflavone increased the level of SIRT1 deacetylating p53. Conclusion Our results suggest that amentoflavone could play a positive role in the inhibition of various diseases associated with autophagy and the modulation of p53. UR - https://www.celljournal.org/article_250558.html L1 - https://www.celljournal.org/article_250558_83865cae3412ac66b80c545daca0eed6.pdf ER -