Cited by 449Hematopoietic Stem Cell TransplantationGenomics and Chromatin DynamicsAcute Myeloid Leukemia Research

PU.1 induces myeloid lineage commitment in multipotent hematopoietic progenitors

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Nerlov, Claus, Graf, Thomas·1998·Genes & Development

Abstract

Little is known about the transcription factors that mediate lineage commitment of multipotent hematopoietic precursors. One candidate is the Ets family transcription factor PU.1, which is expressed in myeloid and B cells and is required for the development of both these lineages. We show here that the factor specifically instructs transformed multipotent hematopoietic progenitors to differentiate along the myeloid lineage. This involves not only the up-regulation of myeloid-specific cell surface antigens and the acquisition of myeloid growth-factor dependence but also the down-regulation of progenitor/thrombocyte-specific cell-surface markers and GATA-1. Both effects require an intact PU.1 transactivation domain. Whereas sustained activation of an inducible form of the factor leads to myeloid lineage commitment, short-term activation leads to the formation of immature eosinophils, indicating the existence of a bilineage intermediate. Our results suggest that PU.1 induces myeloid lineage commitment by the suppression of a master regulator of nonmyeloid genes (such as GATA-1) and the concomitant activation of multiple myeloid genes.

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Crossref · 10.1101/gad.12.15.2403

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  • PU.1 regulates lineage-specific gene expression in a dose-dependent manner.

    “PU.1 regulates lineage-specific gene expression in a dose-dependent manner21–23.”

    From Lymphoid gene expression supports neuroprotective microglia function (2025) · cites this paper as [21]

    The Abstract reports that PU.1 activation increases myeloid-specific markers and decreases progenitor-specific markers. The section on the PU.1 transactivation domain reports that stronger PU.1 alleles produce more myeloid differentiation, but says their protein expression levels did not differ. It does not establish that lineage-specific gene expression depends on PU.1 dose. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • All activated macrophages express high levels of RUNX1 and PU.1, thought to be global regulators of macrophage phenotypic expression.

    “All activated macrophages, regardless of polarization state, express high levels of the transcription factors runt-related transcription factor 1 (RUNX1) and PU.1, which are thought to represent global regulators of macrophage phenotypic expression [20–22].”
  • C/EBP-α is known to cooperate with PU.1 in controlling the expression of the GM-CSF receptor.

    “Interestingly, C/EBP-α is also known to cooperate with PU.1 in controlling the expression of the GM-CSF receptor [108].”
  • During lineage commitment, activation of specific transcription factors directs precursor cells to a particular differentiation pathway.

    “During lineage commitment, activation of specific transcription factors has been shown to direct precursor cells to a particular differentiation pathway (3, 41).”
  • GATA-1, PU.1, and C/EBP family members (C/EBPα and C/EBPε in particular) are essential for the commitment and/or terminal differentiation of myeloid progenitors to the eosinophil lineage.

    “and C/EBP⑀ in particular) are essential for the commitment and/or terminal differentiation of myeloid progenitors to the eosinophil lineage (1)(2)(3)(4)(5)(6)(7)(8)(9).”

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Research works printed but not linked: 2

  1. Henkel, G. and M.A. Brown. 1994. PU.1 and GATA: Compo- nents of a mast cell-specific interleukin 4 intronic enhancer. Proc. Natl. Acad. Sci. 91: 7737-7741.
  2. Orlic, D., S. Anderson, L.G. Biesecker, B.P. Sorrentino, and D.M. Bodine. 1995. Pluripotent hematopoietic stem cells contain high levels of mRNA for c-kit, GATA-2, p45 NF-E2, and c-myb and low levels or no mRNA for c-fms and the recep- tors for granulocyte colony-stimulating factor and interleu- kins 5 and 7. Proc. Natl. Acad. Sci. 92: 4601-4605.

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Authors
Nerlov, C., & Graf, T.
Affiliations
European Molecular Biology Laboratory (DE)
Venue
Genes & Development
Published
1998-08-01
Volume
12
Issue
15
Pages
2403-2412
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W1974612283
Cited by
449
References
46
Citations by year
2026: 13 · 2025: 9 · 2024: 12 · 2023: 16 · 2022: 7 · 2021: 22 · 2020: 18 · 2019: 19 · 2018: 13 · 2017: 21 · 2016: 16 · 2015: 17 · 2014: 15 · 2013: 27 · 2012: 17
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Sundhed og Sygdom, Det Frie Forskningsråd
  • Medical Research Council
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Health Sciences › Medicine › Hematology › Acute Myeloid Leukemia Research
Keywords
PU.1, ETS transcription factors, myeloid lineage commitment, hematopoietic progenitor cells, GATA-1, transactivation domain, eosinophils, cell surface markers
MeSH terms
Proto-Oncogene Protein Spi-1, Alleles, Animals, Cell Differentiation, Chick Embryo, DNA-Binding Proteins, Hematopoiesis, Hematopoietic Stem Cells, Humans, Proto-Oncogene Proteins, Transcription Factors, Transformation, Genetic, Trans-Activators, Gene Expression Regulation, Developmental, Erythroid-Specific DNA-Binding Factors, GATA1 Transcription Factor

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