Which of the following surface glycoproteins is most often expressed in human hematopoietic stem cell (HSC)?: (A) CD23, (B) CD30, (C) CD33, (D) CD34
Answer is D. Surface antigen/Marker Normal cellular distribution CD34 Pluripotent hematopoietic stem cells & progenitor cells of many lineages. CD23 Activated mature B cells CD30 Activated B cells, T cells, and monocytes; Reed-Sternberg cells and variants CD33 Myeloid progenitors and monocytes