mTOR signaling aging refers to age-related changes in the mechanistic target of rapamycin pathway, a key regulator of cell growth, metabolism, and survival. This pathway integrates nutrient availability, energy status, and growth signals to control protein synthesis and autophagy. During aging, chronic activation of mTOR favors cellular growth over maintenance, leading to reduced autophagy, accumulation of damaged proteins, and impaired cellular homeostasis. Excessive mTOR activity is associated with accelerated aging and increased risk of cancer, neurodegeneration, and metabolic disorders. Suppression of mTOR signaling shifts cellular priorities toward repair, stress resistance, and metabolic efficiency. mTOR signaling aging represents a central mechanism linking nutrient sensing to lifespan regulation and remains a major focus in longevity research.
Title : Change your genes – Change your life: Epigenetics of longevity
Kenneth R Pelletier, University of California School of Medicine, United States
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