Related Experiment Video
Updated: Aug 9, 2026
Measuring Caenorhabditis elegans Life Span in 96 Well Microtiter Plates
Published on: March 18, 2011
Testing the evidence that lifespan-extending compound interventions are conserved across laboratory animal model
Michael Bene1, Adam B Salmon2,3,4
1Sam and Ann Barshop Institute for Longevity and Aging Studies, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA.
Abstract:
A growing number of pharmaceutical and small molecule interventions are reported to extend the lifespan of laboratory animals including Caenorhabditis, Drosophila, and mouse. However, the degree to which these pro-longevity interventions are conserved across species is unclear. Here, we took two approaches to ask the question: to what extent do longevity intervention studies in Caenorhabditis and Drosophila recapitulate effects on mouse lifespan? The first approach analyzes all published reports on longevity in the literature collated by the DrugAge database, and the second approach focused on results designed for reproducibility as reported from the NIA-supported Interventions Testing Program (ITP) and the Caenorhabditis Interventions Testing Program (CITP). Using published data sources, we identify only modest sensitivity and specificity of Drosophila interventional studies for identifying pro-longevity compounds in mouse lifespan studies. Surprisingly, reported studies in C. elegans show little predictive value for identifying drugs that extend lifespan in mice. The results therefore suggest caution should be used when making assumptions about the translatability of lifespan-extending compounds across species, including human intervention.
Insights
Longevity interventions in worms (C. elegans) and flies (Drosophila) show limited success in predicting lifespan extension in mice. This suggests caution when translating findings across species for human aging research.
Area of Science:
- Gerontology and aging research
- Comparative biology
- Pharmacology and drug discovery
Background:
- Numerous compounds extend lifespan in model organisms like Caenorhabditis elegans, Drosophila, and mice.
- The conservation of these pro-longevity effects across different species remains largely unknown.
- Understanding cross-species translational potential is crucial for developing effective human aging interventions.
Purpose of the Study:
- To evaluate the extent to which longevity interventions in Caenorhabditis and Drosophila predict lifespan extension in mice.
- To assess the translatability of pro-longevity findings from invertebrate models to mammalian systems.
- To inform the development of reliable biomarkers and models for aging research.
Main Methods:
- Analysis of published longevity intervention studies from the DrugAge database.
- Focus on reproducible results from the National Institute on Aging (NIA)-supported Interventions Testing Program (ITP) and Caenorhabditis Interventions Testing Program (CITP).
- Comparative analysis of compound effects on lifespan across C. elegans, Drosophila, and mouse models.
Main Results:
- Drosophila interventional studies demonstrated only modest sensitivity and specificity in predicting pro-longevity compounds in mouse lifespan studies.
- Surprisingly, C. elegans studies showed minimal predictive value for identifying drugs that extend lifespan in mice.
- Significant discrepancies were observed in the cross-species efficacy of tested longevity interventions.
Conclusions:
- Findings suggest limited translatability of lifespan-extending compounds identified in C. elegans and Drosophila to mouse models.
- Caution is advised when extrapolating longevity intervention results across species, including implications for human aging.
- Further research is needed to identify reliable cross-species biomarkers and predictive models for aging interventions.
