Dear Maciej, I never tried to stain PgE2 intracellularly but I can imagine that this will be a problem. PgE2 is the product of the actions of several enzymes (induced by cytokines) in the arachidonic acid degradation pathway. It is a potent player in inflammatory processes and of interest to a lot of immunologists. Since it not a protein things like PCR are not an option. The EIA is the most convenient way of looking at the production of PgE2. And the fixation has probably no effect on the PgE2. Opening the cells will wash away (all) your prostaglandin(s). Should you still be looking for a EIA kit; the one from Cayman Chemicals works fine. Kind regards, Joost ____________________________________________________ J.H.N.Schuitemaker Senior Research Technician Cellular Immunology Group Cell Biology & Histology Academic Medical Center P.O.box 22700 1100 DE Amsterdam The Netherlands Telephone +31 (0)20 5664960 FAX +31 (0)20 6974156 Internet: http://home.wanadoo.nl/flowcytometry http://www.amc.nl -----Original Message----- From: maciej simm [mailto:flowlab@myflow.net] Sent: maandag 29 juli 2002 18:00 To: cyto-inbox Subject: Prostaglandin E2 Dear Group, Are there any ways to detect PGE2 intracellularly by flow? I've seen references to ELISA kits but nothing "easier". Maciej -- Maciej S. Simm Weill Cornell Medical College Pediatrics Hematology/Oncology Immunology Laboratory/Flow Cytometry Unit 525 East 68th Street N-805 New York, NY 10021 voice (212)746 3428 fax (212)746 8573 --
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