Trouble with intracellular cytokine staining - IFNg, IL-17 (Sep/03/2010 )

I have been trying to do T helper differentiation and to stain for intracellular cytokines. I think the differentiation works fine since I can see loads of cytokines by ELISA but I can never see anything if I stain the cells and do FACS. I used the staining kit from BD and antibodies from R&D and eBioscience. I usually restimulate the cells with PMA+ ionomycin. I have tried both golgiplug and brefeldin A. Does anyone have any idea what could be wrong?

Have you used any permeabilization solution? Intracellular staining need it to make a 'hole' for antibody go to the intracell cytokine.

zodiac1505 on Fri Sep 3 07:23:56 2010 said:

I have been trying to do T helper differentiation and to stain for intracellular cytokines. I think the differentiation works fine since I can see loads of cytokines by ELISA but I can never see anything if I stain the cells and do FACS. I used the staining kit from BD and antibodies from R&D and eBioscience. I usually restimulate the cells with PMA+ ionomycin. I have tried both golgiplug and brefeldin A. Does anyone have any idea what could be wrong?

The BD staining kit already has permeabilisation and fixation solutions.So I guess they are enough