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Related Experiment Video

Updated: Oct 1, 2025

Quantifying Tissue-Specific Proteostatic Decline in Caenorhabditis elegans
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Ageing induces tissue-specific transcriptomic changes in Caenorhabditis elegans.

Xueqing Wang1,2, Quanlong Jiang3,4, Yuanyuan Song1,2

  • 1State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China.

The EMBO Journal
|March 7, 2022
PubMed
Summary
This summary is machine-generated.

This study reveals diverse ageing processes across different tissues in the model organism Caenorhabditis elegans. Tissue-specific transcriptomics identified unique longevity regulators and factors impacting tissue integrity during ageing.

Keywords:
Caenorhabditis elegansageingtissuetranscription factortranscriptomic change

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Area of Science:

  • Gerontology
  • Molecular Biology
  • Genetics

Background:

  • Ageing is a complex biological process with varied manifestations across different tissues.
  • Understanding tissue-specific ageing is crucial for deciphering organismal longevity.
  • Caenorhabditis elegans is a valuable model organism for ageing research, but tissue-specific ageing mechanisms remain underexplored.

Purpose of the Study:

  • To investigate age-induced transcriptomic changes in five major tissues of Caenorhabditis elegans.
  • To identify tissue-specific molecular differences associated with ageing.
  • To uncover novel regulators of tissue integrity and longevity.

Main Methods:

  • Isolation of cells from five distinct tissues of young and old Caenorhabditis elegans.
  • Transcriptomic profiling to analyze age-related gene expression changes within each tissue.
  • Identification of tissue-specific genes and pathways involved in ageing.

Main Results:

  • Demonstrated significant diversity in ageing patterns across different worm tissues.
  • Identified distinct sets of longevity regulators specific to each tissue.
  • Discovered novel tissue-specific factors, irx-1 and myrf-2, influencing intestinal barrier and sarcomere integrity during ageing.

Conclusions:

  • Ageing is a highly heterogeneous process at the tissue level.
  • Tissue-specific transcriptomic analysis provides powerful insights into ageing mechanisms.
  • This research offers a valuable resource for future studies on ageing and longevity.