Comparison of cell viability probes compatible with fixation and permeabilization for combined surface and intracellular staining in flow cytometry

Cytometry
M C O'Brien, W E Bolton

Abstract

Dead cells represent a significant source of interference in the flow cytometric analysis of viable cells primarily due to nonspecific uptake of probes, increased autofluorescence, and altered antigen expression and DNA content. Traditional methods of dead cell exclusion, based on light scatter or uptake of dyes such as propidium iodide (PI) or fluorescein diacetate (FDA), are appropriate for the analysis of fresh, relatively homogeneous samples. However, they are incompatible with the development in this laboratory of a solid tumor monoclonal antibody panel incorporating combined surface and intracellular staining: Light scatter is unreliable in heterogeneous samples such as solid tumors, and most of the widely used viability probes are incompatible, due to weak or reversible binding, with the use of permeabilizing agents for intracellular staining. To determine the best viability marker for inclusion in the solid tumor panel, we compared cultured cells held under hypoxic conditions for up to 15 days after harvest, stained with eight viability probes, and processed according to the solid tumor panel procedure (unprocessed cells from each day, stained with PI, were used as standards). The viability probes included PI (in proces...Continue Reading

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Citations

Jun 4, 2005·Journal of Microbiological Methods·Shishan Wang, Robert E Levin
Sep 15, 2000·Journal of Immunological Methods·M A King
Sep 15, 2000·Journal of Immunological Methods·S K Koester, W E Bolton
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Jan 29, 2016·Applied Microbiology and Biotechnology·Daniela EhgartnerLukas Neutsch
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