Re: IFN-g detection

From: Julie Oughton (oughtonj@ucs.orst.edu)
Date: Tue Jan 12 1999 - 09:51:51 EST


Hi, Slava!

I am currently working on a project that uses flow cytometry to measure the
in vivo production of intracellular IFNg and IL-2 by cytotoxic T
lymphocytes in the murine P815 allogeneic model. As for measuring cytokine
production by ELISA techniques, I cannot detect these cytokines straight
out of the animal. However, I can detect these cytokines following ex vivo
restimulation of the spleen cells for 4-6 hours in vitro with P815 tumor
cells. In this way, I can examine the production of IFNg and IL-2 by
antigen-specific effector cells. I can supply you with further details if
interested.

Julie Oughton
Oregon State University
phone:  541-737-2096
oughtonj@ucs.orst.edu


At 01:49 PM 1/8/99 -0700, you wrote:
>
>
>Hi,
>    I was wondering if anyone has looked at IFN-g production by
>flow cytometry?  I am able to detect TNF-a from monocytes, but I
>can't detect any IFN-g from T cells or NK cells (even though I have
>detected
>protein secretion by ELISA).  Any thoughts?
>
>
>Slava Epelman
>University of Calgary
>sepelman@acs.ucalgary.ca
>
>



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