Skip to content


Biological Procedures Online

Open Access

Isolation, growth and identification of colony-forming cells with erythroid, myeloid, dendritic cell and NK-cell potential from human fetal liver

Biological Procedures Online4:41010

Received: 16 April 2002

Accepted: 27 May 2002


The study of hematopoietic stem cells (HSCs) and the process by which they differentiate into committed progenitors has been hampered by the lack of in vitro clonal assays that can support erythroid, myeloid and lymphoid differentiation. We describe a method for the isolation from human fetal liver of highly purified candidate HSCs and progenitors based on the phenotypes CD38CD34++ and CD38+CD34++, respectively. We also describe a method for the growth of colony-forming cells (CFCs) from these cell populations, under defined culture conditions, that supports the differentiation of erythroid, CD14/CD15+ myeloid, CD1a+ dendritic cell and CD56+ NK cell lineages. Flow cytometric analyses of individual colonies demonstrate that CFCs with erythroid, myeloid and lymphoid potential are distributed among both the CD38 and CD38+ populations of CD34++ progenitors.

Indexing terms

fetal tissuehematopoietic stem cellscell differentiationnatural killer cellsdendritic cells