fixing and storing cells

Dominique Vanhecke (Dominique.Vanhecke@rug.ac.be)
Tue, 18 Jun 1996 10:53:15 +0100

>At 09:03 PM 11/06/96 -0700, Ruedi Braun wrote:
>>
>>Does anyone have experience with the fixation of cells after staining
>>with FITC or PE?
>>I am using 1% paraformaldehyde in PBS and analyze the cells within 12
>>hours after fixation.
>>We are planing to do some experiments with lavages on humans at high
>>altitude and I won't be able to get to a FACS for at least 5 days. Is
>>there a possiblity to fix stained cells for such a long time?
>

For murine lymphoma cell lines we observed a higher background when cells
were not washed with PBS after overnight (to 24hrs) incubation with 1%
paraphormaldehyde/PBS. Washed, fixed cells could be kept for a couple of
days without significantly affecting results (we did not test for how long
they could be kept like that)

Nicky