Cited by 305Hematopoietic Stem Cell TransplantationImmune cells in cancerGenomics and Chromatin Dynamics

ICSBP Directs Bipotential Myeloid Progenitor Cells to Differentiate into Mature Macrophages

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Tamura, Tomohiko, Nagamura-Inoue, Tokiko, Shmeltzer, Zeevik, Kuwata, Takeshi, Ozato, Keiko·2000·Immunity

Abstract

During hematopoiesis, myeloid progenitor cells give rise to granulocytes and macrophages. To study the role for ICSBP, a hematopoietic cell-specific transcription factor in myeloid cell development, the gene was introduced into myeloid progenitor cells established from ICSBP-/- mice. ICSBP retrovirus-transduced cells differentiated into mature macrophages with phagocytic activity, which coincided with the induction of specific target DNA binding activity. Similar to macrophages in vivo, ICSBP-transduced cells were growth arrested, expressed many macrophage-specific genes, and responded to macrophage activation signals. Contrary to this, ICSBP transducion led to repression of granulocyte-specific genes and inhibited G-CSF-mediated granulocytic differentiation in these and other myeloid progenitor cells. Together, ICSBP has a key role in the myeloid cell lineage selection and macrophage maturation.

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Crossref · 10.1016/s1074-7613(00)00016-9

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54 of 54 references verified0 citation errors · 0 not checkable

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  • ICSBP-/- mice harbor an increased number of myeloid progenitor cells, and the -/- progenitors preferentially give rise to granulocytes, although they cannot efficiently generate macrophages.

    “ICSBP 2 / 2 mice harbor an increased number of myeloid progenitor cells, and the 2 / 2 progenitors preferentially give rise to granulocytes, although they cannot efficiently generate another descendant of the myeloid lineage, macrophages.”
  • Studies with myeloid progenitor cells have shown that ICSBP drives their differentiation toward macrophage, whereas it inhibits granulocyte differentiation.

    “Studies with myeloid progenitor cells have shown that ICSBP drives their differentiation toward macrophage, whereas it inhibits granulocyte differentiation.”
  • ICSBP-/- myeloid progenitor cell lines grow in a GM-CSF-dependent manner and differentiate into mature granulocytes in response to G-CSF; transduction of ICSBP causes marked differentiation into mature macrophages with phagocytic activity, represses granulocyte-specific genes, and inhibits G-CSF-mediated granulocyte growth and differentiation.

    “These progenitor cells grew in a GM-CSF-dependent manner and were capable of differentiating into mature granulocytes in response to G-CSF.”
  • Two GMP regulatory states were demarcated by transcription factors involved in granulocyte (Cebpe, Gfi1) or monocyte (Irf8, Klf4) specification.

    “Two were demarcated by TFs involved in granulocyte (e.g., Cebpe, Gfi1) or monocyte (e.g., Irf8, Klf4) specification10–12,22.”

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Authors
Tamura, T., Nagamura-Inoue, T., Shmeltzer, Z., Kuwata, T., & Ozato, K.
Affiliations
National Institutes of Health (US)
Corresponding author
Ozato, Keiko
Venue
Immunity
Publisher
Elsevier BV
Published
2000-08
Volume
13
Issue
2
Pages
155-165
ISSN
1074-7613 (ISSN-L)
OpenAlex
W2045510187
Cited by
305
References
54
Citations by year
2026: 4 · 2025: 6 · 2024: 11 · 2023: 5 · 2022: 8 · 2021: 10 · 2020: 14 · 2019: 10 · 2018: 6 · 2017: 15 · 2016: 15 · 2015: 11 · 2014: 18 · 2013: 19 · 2012: 13
FWCI
8.55
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
IRF8, macrophage differentiation, myeloid progenitor cells, hematopoiesis, lineage selection, transcription factors, granulocytic differentiation, granulocyte colony-stimulating factor, phagocytosis, macrophage activation, retroviral transduction, gene targeting
MeSH terms
Interferon Regulatory Factor-8, Animals, Cell Differentiation, Cells, Cultured, Gene Expression Regulation, Hematopoietic Stem Cells, Interferons, Macrophages, Repressor Proteins, Leukopoiesis, Interferon Regulatory Factors, Mice

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