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Flow cytometric assessment of cell viability: a multifaceted analysis
E Combrier1, P Métézeau, X Ronot
1Laboratoire de Pharmacologie Cellulaire, Ecole pratique des Hautes Etudes, Institut Biomédical des Cordeliers, 15 rue de l'Ecole de Médecine, 75006, Paris, France.
Cytotechnology
|February 24, 2012
Summary
Flow cytometry methods, including dye incorporation and light scattering, effectively assess cell viability. These techniques offer a reliable alternative to the traditional Trypan blue exclusion test for various cell types.
Area of Science:
- Cell Biology
- Biotechnology
- Immunology
Background:
- Cell viability assessment is crucial in biological research and drug development.
- Traditional methods like Trypan blue exclusion are widely used but can be labor-intensive.
- Flow cytometry offers a high-throughput, multi-parametric approach for cell analysis.
Purpose of the Study:
- To evaluate the effectiveness of various flow cytometry techniques for determining cell viability.
- To compare the reliability of different flow cytometry assays against the Trypan blue exclusion test.
- To optimize conditions for flow cytometry-based cell viability analysis.
Main Methods:
- Flow cytometry was used to analyze cell size, morphology, and dye incorporation.
- Tested parameters included light absorption, forward angle light scattering (FALS), and right angle light scattering (RALS).
- Cell fluorescence was assessed using dye retention and exclusion methods with dyes like erythrosin B, ethidium bromide, fluorescein diacetate, and rhodamine 123.
Main Results:
- Different flow cytometry techniques demonstrated varying degrees of effectiveness in assessing cell viability across L929, SIRC, and mouse splenocytes.
- Optimal dye concentrations, incubation times, and analysis conditions were determined for each method.
- Comparisons revealed the reliability of flow cytometry assays relative to the Trypan blue exclusion test.
Conclusions:
- Flow cytometry provides a robust and versatile platform for simultaneous, multi-parameter cell viability assessment.
- Several flow cytometry-based assays show comparable or superior reliability to Trypan blue exclusion.
- These findings support the adoption of flow cytometry for efficient and accurate cell viability studies.
