Analytical, Diagnostic and Therapeutic Techniques, and Equipment

In Situ Nick-End Labeling

An in situ method for detecting areas of DNA which are nicked during APOPTOSIS. Terminal deoxynucleotidyl transferase is used to add labeled dUTP, in a template-independent manner, to the 3 prime OH ends of either single- or double-stranded DNA. The terminal deoxynucleotidyl transferase nick end labeling, or TUNEL, assay labels apoptosis on a single-cell level, making it more sensitive than agarose gel electrophoresis for analysis of DNA FRAGMENTATION.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

An in situ method for detecting areas of DNA which are nicked during APOPTOSIS. Terminal deoxynucleotidyl transferase is used to add labeled dUTP, in a template-independent manner, to the 3 prime OH ends of either single- or double-stranded DNA. The terminal deoxynucleotidyl transferase nick end labeling, or TUNEL, assay labels apoptosis on a single-cell level, making it more sensitive than agarose gel electrophoresis for analysis of DNA FRAGMENTATION.

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Synonyms

12 entry terms
  • In Situ Nick End Labeling
  • In Situ Nick End Labelling
  • In Situ Nick End-Labeling
  • In Situ Nick End-Labelling
  • In Situ Nick-End Labelling
  • Nick End-Labeling, In Situ
  • Nick End-Labelling, In Situ
  • Nick-End Labeling, In Situ
  • Nick-End Labelling, In Situ
  • TUNEL
  • Nick End Labeling, In Situ
  • Nick End Labelling, In Situ

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Aspects Covered

10 allowable subheadings

Indexed with the subheadings classification, economics, ethics, history, instrumentation, methods, standards, statistics & numerical data, trends, veterinary.

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History Note

1999

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Previous Indexing

  • Apoptosis (1994-1998)

MeSH Hierarchy

Tree Number

  1. E05.393.475w

AMA Style

References

  1. National Library of Medicine. In Situ Nick-End Labeling. Medical Subject Headings (MeSH). 2026. Unique ID D020287. http://id.nlm.nih.gov/mesh/2026/D020287
  2. In Situ Nick-End Labeling. In: Wikipedia. https://en.wikipedia.org/wiki/TUNEL_assay
  3. In Situ Nick-End Labeling. In: Wikidata. https://www.wikidata.org/wiki/Q1624817