Aging and cancer: can mTOR inhibitors kill two birds with one drug?
Zelton Dave Sharp1, Arlan Richardson
1Institute of Biotechnology, Department of Molecular Medicine and Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center San Antonio, San Antonio, TX, USA. sharp@uthscsa.edu
Abstract:
The main risk factor for a number of diseases, including cancer, is aging. By delaying the effects of aging, many years of research indicate that diseases associated with aging are reduced by prolongevity interventions such as reductions in caloric intake and mice genetically deficient for growth factors. Although studies of dietary and growth factor restriction have been highly informative regarding the aging process, they are both unrealistic for human application. Recent preclinical results with a pharmacological prolongevity agent (rapamycin) provide a proof-of-concept that such an approach is feasible in human populations. Exactly how rapamycin works to extend lifespan is under increasingly intense investigation. In addition, these studies underscore the critical role that the intracellular target of rapamycin (TOR) plays in one of the deepest mysteries of life, aging. How age-associated diseases interface with TOR and its signaling systems, and the tremendous opportunities for discovery of new drugs that target both aging and its associated diseases is one of the most exciting areas of research currently being conducted in this new era of aging research.
Insights
Aging is a major risk factor for diseases like cancer. Prolongevity interventions, like rapamycin, show promise in delaying aging and associated diseases, offering new drug discovery opportunities.
Area of Science:
- Gerontology
- Pharmacology
- Molecular Biology
Background:
- Aging is the primary risk factor for numerous diseases, including cancer.
- Prolongevity interventions, such as caloric restriction and growth factor deficiency, have demonstrated disease reduction but are not practical for human application.
- Rapamycin, a pharmacological agent, presents a feasible prolongevity approach for human populations.
Purpose of the Study:
- To investigate the mechanisms by which rapamycin extends lifespan.
- To underscore the role of the target of rapamycin (TOR) pathway in aging.
- To explore the intersection of age-associated diseases, TOR signaling, and new drug discovery.
Main Methods:
- Preclinical studies involving rapamycin administration.
- Investigation into the molecular targets and signaling pathways affected by rapamycin.
- Analysis of the relationship between TOR signaling and age-associated diseases.
Main Results:
- Rapamycin has shown preclinical efficacy as a prolongevity intervention.
- The target of rapamycin (TOR) pathway is critically involved in the aging process.
- Understanding TOR signaling opens avenues for targeting both aging and age-related diseases.
Conclusions:
- Pharmacological interventions like rapamycin offer a viable strategy for human prolongevity.
- The TOR pathway is a central regulator of aging and age-associated diseases.
- This research highlights significant opportunities for developing novel therapeutics for aging and related conditions.
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