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Related Experiment Video

Updated: May 19, 2026

Lipid Supplementation for Longevity and Gene Transcriptional Analysis in Caenorhabditis elegans
07:25

Lipid Supplementation for Longevity and Gene Transcriptional Analysis in Caenorhabditis elegans

Published on: December 9, 2022

Lessons from C. elegans: signaling pathways for longevity.

Louis R Lapierre1, Malene Hansen

  • 1Sanford-Burnham Medical Research Institute, Del E. Webb Neuroscience, Aging and Stem Cell Research Center, Program of Development and Aging, La Jolla, CA 92037, USA.

Trends in Endocrinology and Metabolism: TEM
|September 4, 2012
PubMed
Summary

Three key signaling pathways—insulin/IGF-1, target of rapamycin (TOR), and germline—regulate aging in C. elegans. These pathways influence lifespan through overlapping mechanisms like lipid metabolism and autophagy.

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Area of Science:

  • Gerontology
  • Molecular Biology
  • Genetics

Background:

  • Conserved signaling pathways play a critical role in determining lifespan.
  • Model organisms like Caenorhabditis elegans are instrumental in studying aging processes.
  • Understanding the molecular mechanisms of aging is crucial for developing interventions.

Purpose of the Study:

  • To review the influence of three major signaling pathways on lifespan in C. elegans.
  • To highlight the roles of insulin/IGF-1, TOR, and germline signaling in aging.
  • To emphasize the overlapping effector mechanisms, including lipid metabolism and autophagy.

Main Methods:

  • Review of recent research on conserved signaling pathways in C. elegans.
  • Analysis of the interplay between insulin/IGF-1, TOR, and germline signaling.

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Related Experiment Videos

Last Updated: May 19, 2026

Lipid Supplementation for Longevity and Gene Transcriptional Analysis in Caenorhabditis elegans
07:25

Lipid Supplementation for Longevity and Gene Transcriptional Analysis in Caenorhabditis elegans

Published on: December 9, 2022

A Simple Method for High Throughput Chemical Screening in Caenorhabditis Elegans
08:49

A Simple Method for High Throughput Chemical Screening in Caenorhabditis Elegans

Published on: March 20, 2018

Quantifying Tissue-Specific Proteostatic Decline in Caenorhabditis elegans
09:18

Quantifying Tissue-Specific Proteostatic Decline in Caenorhabditis elegans

Published on: September 7, 2021

  • Focus on transcription factors and effector mechanisms modulating aging.

    • Main Results:

    • The insulin/IGF-1, TOR, and germline pathways significantly impact C. elegans lifespan.
    • Distinct transcription factors are engaged by these pathways.
    • Overlapping effector mechanisms, including lipid metabolism and autophagy, are utilized.

    Conclusions:

    • The three pathways modulate aging in C. elegans through partially overlapping effector mechanisms.
    • Lipid metabolism and autophagy are key downstream effectors in aging regulation.
    • Further research into these pathways can provide insights into longevity determination.