Problem with IL-10

From: philipp (philipp.roentgen@student.uni-halle.de)
Date: Thu May 31 2001 - 04:23:21 EST


Hi

I am measuring intracellular Cytokines in Monocytes, but I am getting
bad results with IL-10, all other Cytokines work great with my assay.

I get about 2-5 % positve Cells after 6h Stimulation with LPS (10nM),
but even these results are very unstable. With PMA and Ionomycin the
results vary much more than with LPS. Mostly I can not detect IL-10 at
all. So I got some questions about this matter.

1. Which Stimulus works best to get IL-10 ? and which Concentration you
use for Stimulation ?

2. Which point of time is the best to measure IL-10 ?

3. How much positive Cells  I have to expect at that point of time and
with which Stimulus ?

3. Which Golgi-Inhibitor is the best to measure it ? Monensin or
Brefelidin A ? what concentrations you use?

4. Is it possible that i loose my monocytes, which are IL-10 postive
through cell adherence in my Tubes?


Thanks in advance

Philipp




Philipp K. Röntgen

Department of Thoracic Surgery MLU-Halle
Heinrich Damarow Str.1
06120 Halle
Germany



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