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Science. 1994 Sep 9;265(5178):1573-7.

Requirement of transcription factor PU.1 in the development of multiple hematopoietic lineages.

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  • 1Department of Molecular Genetics and Cell Biology, Howard Hughes Medical Institute, University of Chicago, IL 60637.

Abstract

The transcription factor PU.1 is a hematopoietic-specific member of the ets family. Mice carrying a mutation in the PU.1 locus were generated by gene targeting. Homozygous mutant embryos died at a late gestational stage. Mutant embryos produced normal numbers of megakaryocytes and erythroid progenitors, but some showed an impairment of erythroblast maturation. An invariant consequence of the mutation was a multilineage defect in the generation of progenitors for B and T lymphocytes, monocytes, and granulocytes. Thus, the developmental programs of lymphoid and myeloid lineages require a common genetic function likely acting at the level of a multipotential progenitor.

PMID:
8079170
[PubMed - indexed for MEDLINE]
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