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Updated: Jun 3, 2026

A Semi-Quantitative Drug Affinity Responsive Target Stability (DARTS) assay for studying Rapamycin/mTOR interaction
Published on: August 27, 2019
Effects of rapamycin and TOR on aging and memory: implications for Alzheimer's disease
Renato X Santos1, Sónia C Correia, Susana Cardoso
1Department of Life Sciences - Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal.
Abstract:
Rapamycin is a macrolide immunosuppressant drug, originally used as an anti-fungal agent, which is widely used in transplantation medicine to prevent organ rejection. Target of rapamycin (TOR) is an evolutionarily conserved serine/threonine kinase with pleiotropic cellular functions, regulating processes such as growth and metabolism, cell survival, transcription and autophagy. TOR intervenes in two distinct enzymatic complexes with different functions, a rapamycin-sensitive complex TORC1 and a rapamycin-insensitive complex TORC2. Rapamycin has an inhibitory effect on TORC1 activity and it has been suggested to increase life span, an effect correlated with decreased protein biosynthesis and autophagy activation. In the CNS, rapamycin shows beneficial effects in neuronal survival and plasticity, thus contributing to memory improvement. In this review, evidence implying rapamycin and TOR in aging/life span extension and memory improvement will be discussed. Recent findings about the effects of rapamycin on Alzheimer's disease-associated neuropathology will be also discussed.
Insights
Rapamycin, an immunosuppressant drug, may extend lifespan and improve memory by inhibiting the Target of Rapamycin (TOR) pathway. This review explores its effects on aging, neuronal plasticity, and Alzheimer's disease.
Area of Science:
- Pharmacology
- Molecular Biology
- Neuroscience
Background:
- Rapamycin is an immunosuppressant used in transplantation.
- The Target of Rapamycin (TOR) pathway regulates crucial cellular processes like growth, metabolism, and autophagy.
- TOR exists in two complexes: rapamycin-sensitive TORC1 and rapamycin-insensitive TORC2.
Purpose of the Study:
- To review evidence linking rapamycin and TOR to lifespan extension.
- To discuss the role of rapamycin and TOR in memory improvement.
- To explore recent findings on rapamycin's effects on Alzheimer's disease neuropathology.
Main Methods:
- Literature review of studies on rapamycin and TOR.
- Analysis of research on aging, neuronal plasticity, and memory.
- Examination of studies investigating rapamycin in Alzheimer's disease models.
Main Results:
- Rapamycin inhibits TORC1, correlating with increased lifespan and decreased protein biosynthesis.
- Rapamycin demonstrates beneficial effects on neuronal survival and plasticity, enhancing memory.
- Emerging evidence suggests rapamycin impacts Alzheimer's disease-associated neuropathology.
Conclusions:
- Rapamycin and the TOR pathway are implicated in aging and lifespan extension.
- Rapamycin shows potential for cognitive enhancement and memory improvement.
- Further research into rapamycin's therapeutic applications for neurodegenerative diseases like Alzheimer's is warranted.
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