Mechanisms of life span extension by rapamycin in the fruit fly Drosophila melanogaster
What this study shows
Feeding rapamycin extended fly lifespan through autophagy and reduced translation, and worked even in flies already on a lifespan-maximizing diet.
At a glance
| Evidence type | A Animal model Marked A because it is an animal intervention or observation study measuring an organismal outcome (model: Drosophila melanogaster); the code names the system studied -- animal work can be rigorous and still not be human data. |
| Study type | 4 - Animal Study |
| Model system | Drosophila melanogaster |
| Journal | Cell Metabolism |
| Year | 2010 |
| Peer reviewed | Yes |
| Record last updated | 2026-08-22 |
| Source | DOI 10.1016/j.cmet.2009.11.010 · PMID 20074526 · Free full text (PMC2824086) |
Extracted findings
| Intervention | Rapamycin (feeding) |
| Target | TOR |
| Model | Drosophila melanogaster |
| Effect | Feeding rapamycin extends fly lifespan via autophagy and reduced translation |
| Dose | Rapamycin administered by feeding from early adulthood at 50, 200, and 400 μM; 200 μM produced the largest increase in median life span. Concentration in flies fed 200 μM food was 3.3 ± 0.2 ng/mg wet weight. |
| Sample size | Flies of diverse genetic (w1118, yw, ovoD mutant) and cytoplasmic (Wolbachia-free) backgrounds, and both sexes were tested. |
| Effect size | Significant life span extension occurred at 50, 200, and 400 μM rapamycin, with 200 μM producing the largest increase in median life span. Rapamycin also significantly increased stress resistance (starvation, paraquat) and elevated triacylglyceride (TAG) levels, while reducing female fecundity in a dose-dependent manner. |
| Limitations | not stated |
In the Atlas
Related topics
Open questions that cite this study
- Cited as supporting evidence for the open question Is autophagy actually REQUIRED for the mammalian lifespan benefit?.
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