Regulation of macrophage and neutrophil cell fates by the PU.1: C/EBPα ratio and granulocyte colony-stimulating factor

Richard Dahl, Jonathan C. Walsh, David Lancki, Peter Laslo, Sangeeta R. Iyer, Harinder Singh, M. Celeste Simon

Research output: Contribution to journalArticle

281 Citations (Scopus)

Abstract

Hematopoietic transcription factors are essential for specifying cell fates; however, the function of cytokines in such developmental decisions is unresolved. We demonstrate here that haploinsufficiency for the gene encoding the transcription factor PU.1 partially suppresses the neutropenia of mice deficient in granulocyte colony-stimulating factor. This suppression was due to an increase in granulocytic progenitors and a diminution of monocytic progenitors. With PU.1+/- ES cells as well as PU.1-/- hematopoietic progenitors, we show that higher expression of PU.1 is needed for macrophage than for neutrophil development. In a PU.1-/- progenitor cell line, in which graded activity of PU.1 regulates neutrophil versus macrophage development, granulocyte colony-stimulating factor signaling supported the neutrophil cell fate by increasing expression of the neutrophil transcription factor C/EBPα in relation to expression of PU.1. Collectively, these results indicate that cytokines can promote cell fate decisions by altering the relative concentrations of lineage-determining transcriptional regulators.

Original languageEnglish (US)
Pages (from-to)1029-1036
Number of pages8
JournalNature Immunology
Volume4
Issue number10
DOIs
StatePublished - Oct 1 2003
Externally publishedYes

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Granulocyte Colony-Stimulating Factor
Neutrophils
Macrophages
Transcription Factors
Cytokines
Haploinsufficiency
Granulocyte-Macrophage Colony-Stimulating Factor
Neutropenia
Stem Cells
Cell Line
Genes

ASJC Scopus subject areas

  • Immunology

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Regulation of macrophage and neutrophil cell fates by the PU.1 : C/EBPα ratio and granulocyte colony-stimulating factor. / Dahl, Richard; Walsh, Jonathan C.; Lancki, David; Laslo, Peter; Iyer, Sangeeta R.; Singh, Harinder; Celeste Simon, M.

In: Nature Immunology, Vol. 4, No. 10, 01.10.2003, p. 1029-1036.

Research output: Contribution to journalArticle

Dahl, R, Walsh, JC, Lancki, D, Laslo, P, Iyer, SR, Singh, H & Celeste Simon, M 2003, 'Regulation of macrophage and neutrophil cell fates by the PU.1: C/EBPα ratio and granulocyte colony-stimulating factor', Nature Immunology, vol. 4, no. 10, pp. 1029-1036. https://doi.org/10.1038/ni973
Dahl, Richard ; Walsh, Jonathan C. ; Lancki, David ; Laslo, Peter ; Iyer, Sangeeta R. ; Singh, Harinder ; Celeste Simon, M. / Regulation of macrophage and neutrophil cell fates by the PU.1 : C/EBPα ratio and granulocyte colony-stimulating factor. In: Nature Immunology. 2003 ; Vol. 4, No. 10. pp. 1029-1036.
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