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2016 ; 41
(7
): 621-632
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Biochemical Basis of Sestrin Physiological Activities
#MMPMID27174209
Ho A
; Cho CS
; Namkoong S
; Cho US
; Lee JH
Trends Biochem Sci
2016[Jul]; 41
(7
): 621-632
PMID27174209
show ga
Excessive accumulation of reactive oxygen species (ROS) and chronic activation of
mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) are well-characterized
promoters of aging and age-associated degenerative pathologies. Sestrins, a
family of highly conserved stress-inducible proteins, are important negative
regulators of both ROS and mTORC1 signaling pathways; however, the mechanistic
basis of how Sestrins suppress these pathways remains elusive. In the past couple
of years, breakthrough discoveries about Sestrin signaling and its molecular
nature have markedly increased our biochemical understanding of Sestrin function.
These discoveries have also uncovered new potential therapeutic strategies that
may eventually enable us to attenuate aging and age-associated diseases.