Cited by 111Hematopoietic Stem Cell TransplantationBlood disorders and treatmentsCytokine Signaling Pathways and Interactions

Inflammatory signaling regulates hematopoietic stem and progenitor cell development and homeostasis

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Collins, Amélie, Mitchell, Carl A., Passegué, Emmanuelle·2021·Journal of Experimental Medicine

Abstract

Inflammation exerts multiple effects on the early hematopoietic compartment. Best studied is the role of proinflammatory cytokines in activating adult hematopoietic stem and progenitor cells to dynamically replenish myeloid lineage cells in a process known as emergency myelopoiesis. However, it is increasingly appreciated that the same proinflammatory signaling pathways are used in diverse hematopoietic scenarios. This review focuses on inflammatory signaling in the emergence of the definitive hematopoietic compartment during embryonic life, and tonic inflammatory signals derived from commensal microbiota in shaping the adult hematopoietic compartment in the absence of pathogenic insults. Insights into the unique and shared aspects of inflammatory signaling that regulate hematopoietic stem and progenitor cell function across the lifespan and health span of an individual will enable better diagnostic and therapeutic approaches to hematopoietic dysregulation and malignancies.

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Crossref · 10.1084/jem.20201545

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  • Emergency myelopoiesis is a critical response to physiological insults that supplies the host with enough innate immune cells to fight infections and/or contribute to repair and immunosurveillance of damaged tissues.

    ““Emergency” myelopoiesis is a critical response to physiological insults that supplies the host with enough innate immune cells to fight infections and/or contribute to the repair and immunosurveillance of damaged tissues (Caiado et al., 2021; Collins et al., 2021).”

    From PU.1 is required to restrain myelopoiesis during chronic inflammatory stress (2023) · cites this paper as Collins et al., 2021

    The Introduction says inflammation stimulates hematopoietic progenitors to replenish depleted lineages and that blood cells provide innate immunity and contribute to tissue repair. The section on adult hematopoiesis describes increased myeloid production to meet organismal needs. Our copy does not specifically connect emergency myelopoiesis to immunosurveillance of damaged tissues. (LLM, conf=0.82)

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Authors
Collins, A., Mitchell, C. A., & Passegué, E.
Affiliations
  • Columbia University Irving Medical Center (US)
  • Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, NY 1
Corresponding author
Collins, Amélie
Venue
Journal of Experimental Medicine
Published
2021-06-15
Volume
218
Issue
7
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W3168900950
Cited by
111
References
118
Citations by year
2026: 24 · 2025: 24 · 2024: 32 · 2023: 22 · 2022: 8 · 2021: 1
FWCI
2.75
Type
journal article
Language
en
Open access
Locations
  • The Journal of Experimental Medicine (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • National Institute of Diabetes and Digestive and Kidney Diseases (K08-DK124657)
  • Louis V. Gerstner Jr. Scholar Award
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (R35-HL135763)
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Blood disorders and treatments
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
Keywords
inflammatory signaling, hematopoietic stem and progenitor cells, emergency myelopoiesis, inflammatory cytokines, definitive hematopoiesis, embryonic hematopoiesis, commensal microbiota, hematopoietic homeostasis, myeloid lineage, hematologic malignancies
MeSH terms
Animals, Hematopoiesis, Hematopoietic Stem Cells, Homeostasis, Humans, Inflammation, Stem Cells, Signal Transduction, Myeloid Cells, Myelopoiesis

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