RE: Intracellular staining

P.Openshaw Medicine (p.openshaw@ic.ac.uk)
Tue, 2 Jan 1996 16:55:59 +0000 (GMT)

In reply to Howard Ratech, we have used saponin to permeabilise for IC
stains for cytokines (see J Experimental Medicine 182:1357-1367, 1995).

>
>
> We are trying to determine if COS cells are expressing a particular
> protein after transient transfection. The protein is designed to be
> secreted but I am hoping we can find enough of it in the cytoplasm to tell
> us the experiment worked before we do a Western blot on the culture
> supernatant.We have directly PERCP conjugated mouse monoclonal antibody to
> this protein. Do you have any recommended protocol for permeablization,
> staining, washing etc.? Since these cells are quite large, is there
> anything we should be doing with the FSC and SSC, other than using linear
> amplification? We are using a BD FACSCAN with LYSIS software.
>
> Happy Holidays.
>
> Howard
>
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