Expression of AC133, a Novel Hematopoietic Precursor Antigen, on Acute Myeloid Leukemia Cells

To the Editor: In a recent issue of BLOOD, Yin et al[1][1]reported the production of AC133, a monoclonal antibody (MoAb) that binds to a novel cell surface antigen present on a CD34(bright) subset of human hematopoietic stem cells (HSCs). In the same issue, Miraglia et al[2][2] described that the