Expression of an early myelopoietic antigen (CD33) on a subset of human umbilical cord blood-derived natural killer cells.

Abstract

A new subset of natural killer (NK) cells was identified in human umbilical cord blood. This subset of CD56+/CD3- NK cells co-expressed the CD33 antigen, which is present on early hematopoietic progenitors confined to the myeloid lineage. The percentage of the CD56+/CD33+ cells among the CD56+/CD3- NK cells was 7.9 +/- 6.6% (n = 27) with a range of 1.4-25.5… (More)

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