Product Description
The Biocare CD33 antibody detects CD33 (Siglec-3), a 67 kDa glycosylated transmembrane receptor expressed on myeloid-specific cells.15, 16 Historically, CD33 was primarily used for flow cytometry; more recently, a paraffin embedded tissue–compatible CD33 antibody has been developed. CD33 is useful for phenotyping acute myelogenous leukemias, with immunohistochemical (IHC) analysis providing results equivalent to flow cytometry.15, 16 It is also valuable in the evaluation of myeloid sarcomas.15, 17 In normal bone marrow trephine biopsies, clone PWS44 stains myeloid and myelomonocytic lineages, as well as mature macrophages, while erythroid and megakaryocyte series are negative for CD33.15


