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Related Concept Videos

Flow Cytometry01:23

Flow Cytometry

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The development of flow cytometry techniques began in 1934 with initial attempts by Andrew Moldavan, a bacteriologist who counted the cells in a flowing capillary system. Moldavan pumped cells through a capillary tube focused under a microscope for visualization. The invention of photometry allowed the measurement of differentially-stained cells, and Louis Kamentsky developed the first multiparameter flow cytometer in 1965 to identify and count the cancer cells in cervical tissue specimens.
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Multiparametric Analysis of Apoptosis by Flow Cytometry.

William G Telford1

  • 1Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA. telfordw@mail.nih.gov.

Methods in Molecular Biology (Clifton, N.J.)
|March 25, 2024
PubMed
Summary
This summary is machine-generated.

Flow cytometry is a key tool for studying cell death. Multiparametric assays combine multiple apoptotic markers for deeper insights into cell death progression, offering more information than single assays.

Keywords:
7-Aminoactinomycin DAnnexin VApoptosisCaspaseCovalent viability probeFlow cytometryFluorogenic caspase substrateHoechst dyeNecroptosisPacific BluePropidium iodidePyroptosis

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Area of Science:

  • Cell Biology
  • Immunology
  • Biochemistry

Background:

  • Flow cytometry is the standard for detecting and quantifying apoptosis and cell death in mammalian cells.
  • Its multiparametric nature enables simultaneous analysis of multiple apoptotic characteristics within a single sample.
  • This facilitates a comprehensive understanding of the complex apoptotic death process.

Purpose of the Study:

  • To present methods for creating multiparametric flow cytometry assays.
  • To combine assays for single apoptotic markers (caspase activation, annexin V binding, membrane permeability) into single, comprehensive analyses.
  • To enhance the depth of insight into cell death mechanisms.

Main Methods:

  • Development of protocols for combining multiple apoptosis detection assays.
  • Utilizing flow cytometry for simultaneous labeling and analysis of various apoptotic markers.
  • Focus on assays for caspase activation, annexin V binding, and cell membrane permeability.

Main Results:

  • Multiparametric assays provide significantly more information than single-parameter assays.
  • Simultaneous analysis of multiple apoptotic characteristics offers deeper insights into cell death.
  • The described multicolor methods are compatible with standard flow cytometers.

Conclusions:

  • Multiparametric flow cytometry is a powerful and accessible method for studying apoptosis.
  • Combining multiple assays enhances the understanding of cell death complexity.
  • These methods offer a more informative approach to cell death research.