Open AccessAKT and its related molecular feature in aged mice skin
Author(s) -
Haiyan Chen,
Xusheng Wang,
Jimin Han,
Zhimeng Fan,
Sobia Sadia,
Rongrong Zhang,
Yingsheng Guo,
Yuyang Jiang,
Yaojiong Wu
Publication year - 2017
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0178969
Subject(s) - protein kinase b , pten , phosphorylation , mediator , microbiology and biotechnology , pi3k/akt/mtor pathway , cancer research , biology , signal transduction , chemistry
Previous studies suggest that Akt signaling promotes tissue regeneration and decreased Akt activities are found in aged tissues. However, this study finds that the expression and activation levels of Akt in the mice skin increased with age. Additionally, the expression levels of Pten, p16, p21 and p53 also elevated with increased age. Immuno-fluorescence analysis showed that Akt phosphorylation found in the epidermal cells (with increased levels of NF-κB activation) were also found. In vivo inhibition of AKT activity result in reduced NF-κB activation. Our results suggest that increasing Akt/ NF-κB is a crucial mediator of skin aging, which can increase the susceptibility of cell transformation.