A rapid analytical technique for flow cytometric analysis of cell viability using calcofluor white M2R.
Analysis of dead versus live cells is shown to be possible using Calcoflour White M2R (CFW), a fluorescent brightener. Comparison of CFW with both propidium iodide (PI) and fluorescein diacetate (FDA) was performed on a FACS 440 dual laser flow cytometer on several populations of cultured rat and mouse cell lines, peripheral leukocytes, splenocytes, diatoms, and plant protoplasts. As a measure of cell viability, staining results with CFW were strongly associated with PI (correlation coefficient of 0.9886) and FDA (inverse correlation coefficient of 0.9647). With plant and algal cells, controls are necessary as CFW does stain live cells to some extent. CFW (excitation: UV, emission max: 435 nm) can be used in conjunction with two-color immunofluorescence analysis using fluorochromes excited at 488 nm with no interference.[1]References
- A rapid analytical technique for flow cytometric analysis of cell viability using calcofluor white M2R. Berglund, D.L., Taffs, R.E., Robertson, N.P. Cytometry. (1987) [Pubmed]
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