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Related Experiment Videos

Telomeres in T and B cells.

Richard J Hodes1, Karen S Hathcock, Nan-ping Weng

  • 1National Institute on Aging, National Institutes of Health, Bethesda, Maryland 20892, USA. Richard_Hodes@nih.gov

Nature Reviews. Immunology
|September 5, 2002
PubMed
Summary

Telomeres protect chromosome ends. This article explores how telomere length is regulated in lymphocytes (T and B cells) and its impact on immune responses.

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Area of Science:

  • Genetics and Molecular Biology
  • Immunology

Background:

  • Telomeres are repetitive DNA sequences at chromosome ends, crucial for genomic stability.
  • Cell division leads to telomere shortening, potentially causing senescence or cell death.
  • Lymphocytes (T and B cells) require extensive proliferation for effective immunity.

Purpose of the Study:

  • To review current knowledge on telomere length regulation in lymphocytes.
  • To discuss the implications of telomere dynamics for immune cell function.

Main Methods:

  • Literature review of studies on telomere biology in mammalian cells.
  • Focus on telomere maintenance mechanisms in lymphocytes.
  • Analysis of the relationship between telomere length and lymphocyte proliferation/function.

Main Results:

  • Telomere length in lymphocytes is regulated by telomerase activity and other factors.
  • Telomere erosion can limit lymphocyte lifespan and clonal expansion.
  • Dysregulation of telomere length impacts adaptive immunity.

Conclusions:

  • Telomere maintenance is critical for sustained lymphocyte function and immune competence.
  • Understanding telomere regulation in lymphocytes offers insights into aging and immune-related diseases.

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