Hi Yalin, as a result of a recent posting regarding the commercial availability of a monoclonal anti-ABCG2 antibody, we purchased a PE conjugate of the 5D3 clone from eBiosciences. However, we have yet to detect any staining whatsoever with this reagent. Thus far we have looked at several normal bone marrow samples, and several cytokine-mobilised peripheral blood samples. We could not detect expression on gated CD34+ cells, nor on the ungated data files. The marrow samples were prepared by Ficoll, but the mobilised PB samples were prepared by lyse-no-wash processing. Has anyone else obtained this reagent and had success? cheers Rob Sutherland University Health Network, Toronto
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