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Quantifying loss of cell viability or adhesion using methylene blue
Ammar Samra1, Abdelmnim Radoua1, Elif Sila Tanaydin2
1Université Bourgogne Europe, INSERM, CTM UMR1231, DesCarTes, Dijon, France.
Methods in Cell Biology
|April 30, 2026
Summary
Methylene blue staining quantifies cell adhesion and detachment, offering a direct measure of cell death. This cost-effective method aids in evaluating drug responses and cell survival in research.
Area of Science:
- Cell Biology
- Biochemistry
- Toxicology
Background:
- Methylene blue is a dye used in cell biology.
- It quantifies cell adhesion and indirectly assesses cell death.
- It binds to cellular proteins, effective for staining adherent cells.
Purpose of the Study:
- To describe a methylene blue-based assay for direct measurement of cell detachment.
- To highlight its application in assessing cell death processes like apoptosis and anoikis.
- To present a reliable and cost-effective method for evaluating cytotoxicity and drug responses.
Main Methods:
- A simple staining and washing procedure is used.
- Methylene blue selectively labels cells remaining attached to the culture surface.
- Retained dye is eluted and quantified spectrophotometrically.
Main Results:
- The assay allows direct measurement of cell detachment.
- It provides a reliable method for evaluating cytotoxicity.
- It is effective for assessing drug responses and adhesion dynamics.
Conclusions:
- Methylene blue staining is a powerful tool for studying cell survival and detachment.
- It offers advantages over traditional viability assays.
- It is applicable in both basic and applied cell-based research.
