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Ex vivo Mimicry of Normal and Abnormal Human Hematopoiesis
11:50

Ex vivo Mimicry of Normal and Abnormal Human Hematopoiesis

Published on: April 10, 2012

Formation of haematopoietic microenvironment and haematopoietic stem cells from single human bone marrow stem cells

S Huang1, L W Terstappen

  • 1Becton Dickinson Immunocytometry Systems, San Jose, California 95131.

Nature
|December 24, 1992
PubMed

Haematopoietic stem cells are a population of cells capable both of self renewal and of differentiation into a variety of haematopoietic lineages. Enrichment techniques of human haematopoietic stem cells have used the expression of CD34, present on bone marrow progenitor cells. But most CD34+ bone marrow cells are committed to their lineage, and more recent efforts have focused on the precise characterization of the pluripotent subset of CD34+ cells. Here we report the characterization of two distinct subsets of pluripotent stem cells from human fetal bone marrow, a CD34+, HLA-DR+, CD38- subset that can differentiate into all haematopoietic lineages, and a distinct more primitive subset, that is CD34+, HLA-DR-, CD38-, that can differentiate into haematopoietic precursors and stromal cells capable of supporting the differentiation of these precursors. These data represent, to our knowledge, the first identification of a single cell capable of reconstituting the haematopoietic cells and their associated bone marrow microenvironment.

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