I had the same problem. PHA by definition is a hemagglutinin. I started stimulating with SEB instead. David McFarland University of Illinois Biotechnology Center Flow Cytometry Facility ---------- Forwarded message ---------- Date: Wed, 26 Feb 1997 13:35:59 +0000 From: tlr@mrc-lmb.cam.ac.uk To: cyto-inbox Subject: PHA aggregation Dear colleagues, I am looking at intracellular cytokines produced by CD14+/CD3+ cells from PBMC cultures, in response to PHA stimulation. I am having problems with cell aggregation . Has anyone used a similar system and how did they get round it? Stimulating with PMA/ionophore is not an option at the present time. Thank you in advance, Tom Rowland
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