Propidium Iodide Stain for Flow Cytometry

University of Maryland, College Park
Cell Biology and Molecular Genetics
Post-doctoral researcher

Overall

Quality of Results

Ease-of-Optimization

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Company:

Miltenyi Biotec

Product Name:

Propidium Iodide Solution

Catalog Number:

130-093-233

Our lab routinely performs multicolor flow cytometry of immune cells. To help gate out dead cells, we have tried propidium iodide to stain dead cells. Compared to DAPI, propidium iodide does not give as distinct of a separation between live and dead cells.

Experimental Design and Results Summary

Application

Flow cytometry

Starting Material

Human PBMCs

Protocol Overview

Collect and wash cells, dilute propidium iodide solution to optimized concentration, stain with flow antibodies and diluted propidium iodide, wash cells, then acquire

Tips

Optimize propidium iodide dilution

Results Summary

Staining of dead cells with enough discrimination between live and dead to draw a gate; however, the separation is not as clean as is seen with DAPI.

DOI or PMID #

N/A

Additional Notes

N/A

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Summary

The Good

Easy to perform live/dead staining

The Bad

Live/dead distinction is not as good as DAPI

The Bottom Line

Use DAPI for live/dead discrimination

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