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Updated: May 3, 2026

A Semi-Quantitative Drug Affinity Responsive Target Stability DARTS assay for studying Rapamycin/mTOR interaction
Published on: August 27, 2019
Rapamycin: one drug, many effects
Jing Li1, Sang Gyun Kim1, John Blenis1
1Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA.
Abstract:
The mammalian target of rapamycin (mTOR) signaling pathway is a master regulator of cell growth and metabolism. Deregulation of the mTOR pathway has been implicated in a number of human diseases such as cancer, diabetes, obesity, neurological diseases, and genetic disorders. Rapamycin, a specific inhibitor of mTOR, has been shown to be useful in the treatment of certain diseases. Here we discuss its mechanism of action and highlight recent findings regarding the effects and limitations of rapamycin monotherapy and the potential utility of combination therapy with rapamycin.
Insights
The mammalian target of rapamycin (mTOR) pathway regulates cell growth. Rapamycin, an mTOR inhibitor, shows promise for treating diseases like cancer, but combination therapies may offer greater utility.
Area of Science:
- Molecular Biology
- Cellular Metabolism
- Pharmacology
Background:
- The mammalian target of rapamycin (mTOR) signaling pathway is crucial for regulating cell growth and metabolism.
- Aberrant mTOR pathway activity is linked to various human diseases, including cancer, diabetes, obesity, and neurological disorders.
Purpose of the Study:
- To discuss the mechanism of action of rapamycin, a specific mTOR inhibitor.
- To review recent findings on the efficacy and limitations of rapamycin monotherapy.
- To explore the potential of combination therapy involving rapamycin.
Main Methods:
- Literature review of studies on mTOR signaling.
- Analysis of rapamycin's mechanism of action.
- Evaluation of clinical and preclinical data on rapamycin therapy.
Main Results:
- Rapamycin effectively inhibits the mTOR pathway.
- Monotherapy with rapamycin has demonstrated therapeutic effects but also limitations.
- Combination therapies involving rapamycin show potential for enhanced treatment outcomes.
Conclusions:
- Rapamycin is a key therapeutic agent targeting the mTOR pathway.
- Understanding rapamycin's effects and limitations is crucial for optimizing its use.
- Combination strategies hold promise for overcoming challenges in rapamycin-based treatments.
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