Sestrin 2 (SESN2) is a protein that plays a crucial role in regulating cellular metabolism, stress response, and apoptosis.
High SESN2 expression is associated with better prognosis, including increased overall survival and reduced recurrence.
Low SESN2 expression is associated with poor prognosis, including increased tumor size, stage, and metastasis.
SESN2 encodes Sestrin-2, a conserved stress-inducible protein activated by oxidative stress, DNA damage, hypoxia, and nutrient deprivation (often downstream of p53/ATF4). Its core biochemical role is to restrain growth during stress.
Key functions
-Inhibits mTORC1 (via AMPK/TSC and GATOR pathways)
-Promotes autophagy
-Reduces ROS and restores redox balance
-Coordinates metabolic slowdown during damage
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