Re: PFA fixed cells

FACS_COPY@wehi.edu.au
Sat, 03 Aug 1996 23:42:50 +1000

Aleta,

> I'm looking at phagocytosis and oxidative burst in porcine neutrophils.
> I plan on performing a simultaneous assay using FITC-zymosan and
> hydroethidium, and will be processing lots of samples by flow cytometry.
> I would like to fix the cells in PFA after phagocytosis - will fixation
> affect the resulting flourescence of EtBr produced during the oxidative
> burst?

You'll probably find the fixation allows the EtBr to leak out, so in time,
all cells will become equally EtBr-stained.

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