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A simplified protocol for apoptosis assay by DNA content analysis.

Ruoxiang Wang1, Yu-Fang Shi

  • 1Department of Urology, Emory University School of Medicine, Atlanta, GA, USA.

Biotechniques
|October 25, 2002
PubMed
Summary

A simplified flow cytometry protocol enhances the detection of apoptotic cells by analyzing DNA fragmentation. This method requires fewer cells and allows for high-throughput sample preparation, improving apoptosis research.

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Area of Science:

  • Cell Biology
  • Biochemistry

Background:

  • Apoptosis, or programmed cell death, is characterized by specific cellular markers.
  • Genomic DNA fragmentation is a hallmark of apoptosis, detectable through various methods.
  • DNA content analysis, while common, often underestimates apoptosis rates compared to other techniques.

Purpose of the Study:

  • To develop a more accurate and efficient method for detecting apoptotic cells.
  • To improve upon existing DNA content analysis protocols for apoptosis detection.

Main Methods:

  • A simplified flow cytometry protocol was developed.
  • The protocol focuses on detecting DNA fragmentation in permeabilized cells.

Main Results:

  • The simplified protocol detects a higher number of apoptotic cells compared to standard DNA content analysis.
Keywords:
Non-programmatic

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  • This method requires significantly fewer cells for accurate assessment.
  • The protocol facilitates simultaneous preparation of a large number of samples.

    • Conclusions:

    • The developed simplified flow cytometry protocol offers a more sensitive and efficient approach to apoptosis detection.
    • This method improves upon traditional DNA content analysis, providing more reliable quantification of apoptotic cells.
    • The protocol's efficiency in cell usage and sample throughput makes it valuable for high-volume research.