Cited by 877Hematopoietic Stem Cell TransplantationBlood disorders and treatmentsinterferon and immune responses

Quiescent haematopoietic stem cells are activated by IFN-γ in response to chronic infection

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Baldridge, Megan T., King, Katherine Y., Boles, Nathan C., Weksberg, David C., Goodell, Margaret A.·2010·Nature

Abstract

Lymphocytes and neutrophils are rapidly depleted by systemic infection. Progenitor cells of the haematopoietic system, such as common myeloid progenitors and common lymphoid progenitors, increase the production of immune cells to restore and maintain homeostasis during chronic infection, but the contribution of haematopoietic stem cells (HSCs) to this process is largely unknown. Here we show, using an in vivo mouse model of Mycobacterium avium infection, that an increased proportion of long-term repopulating HSCs proliferate during M. avium infection, and that this response requires interferon-gamma (IFN-gamma) but not interferon-alpha (IFN-alpha) signalling. Thus, the haematopoietic response to chronic bacterial infection involves the activation not only of intermediate blood progenitors but of long-term repopulating HSCs as well. IFN-gamma is sufficient to promote long-term repopulating HSC proliferation in vivo; furthermore, HSCs from IFN-gamma-deficient mice have a lower proliferative rate, indicating that baseline IFN-gamma tone regulates HSC activity. These findings implicate IFN-gamma both as a regulator of HSCs during homeostasis and under conditions of infectious stress. Our studies contribute to a deeper understanding of haematological responses in patients with chronic infections such as HIV/AIDS or tuberculosis.

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  • Titration of doxycycline concentration in chow identified a dose that approximated serum levels of IFNγ in mice infected with the Mycobacterium avium pathogen.

    “Titration of doxycycline concentration in chow (Supplementary Fig. S4A) identified a dose that approximated serum levels of IFNγ in mice infected with the Mycobacterium avium pathogen (29).”

    From <i>Txnip</i> Enhances Fitness of <i>Dnmt3a</i> -Mutant Hematopoietic Stem Cells via <i>p21</i> (2022) · cites this paper as [29]

    The passage on IFNγ during M. avium infection (labelled Abstract in our copy; page unavailable) reports increased IFNγ in infected mice’s bone marrow and refers to previous findings in serum. It gives no serum concentration against which a doxycycline dose could be compared. The chow titration is attributed to the citing paper’s own supplementary figure, not to this source. (LLM, conf=0.81)

    Experimental — accuracy not yet measured
  • IFN-g is produced during acute infections and leads to activation and proliferation of otherwise quiescent HSCs to immunologically fight pathogens.

    “IFN-g, a prominent type II interferon, is produced during acute infections and leads to an activation and proliferation of otherwise quiescent HSCs to immunologically fight pathogens.20”

    From Inflammatory bone marrow microenvironment (2019) · cites this paper as [20]

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Research works printed but not linked: 4

  1. [31]Durbin JE Hackenmiller R Simon MC Levy DE Targeted disruption of the mouse Stat1 gene results in compromised innate immunity to viral disease Cell 1996 84 443 50 8608598
  2. [33]Feng C The p47 GTPase Lrg-47 (Irgm1) Links Host Defense and Hematopoietic Stem Cell Proliferation Cell Stem Cell 2008 2 83 89 18371424 PMC2278017
  3. [34]Challen GA Boles N Lin KK Goodell M Mouse hematopoietic stem cell identification and analysis Cytometry A 2009 75 14 24 19023891 PMC2640229
  4. [36]Souroullas GP Salmon JM Sablitzky F Curtis DJ Goodell MA Adult hematopoietic stem cell and progenitor cells require either Lyl1 or Scl for survival Cell Stem Cell 2009 4 180 6 19200805 PMC2672304

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Authors
Baldridge, M. T., King, K. Y., Boles, N. C., Weksberg, D. C., & Goodell, M. A.
Affiliations
Baylor College of Medicine (US)
Corresponding author
Goodell, Margaret A.
Venue
Nature
Published
2010-06
Volume
465
Issue
7299
Pages
793-797
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2072411272
Cited by
877
References
32
Citations by year
2026: 31 · 2025: 52 · 2024: 56 · 2023: 67 · 2022: 67 · 2021: 72 · 2020: 61 · 2019: 49 · 2018: 60 · 2017: 60 · 2016: 68 · 2015: 48 · 2014: 56 · 2013: 50 · 2012: 36
FWCI
26.09
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (K08HL098898, U54HL081007, R01HL096360, T32HL092332)
  • National Cancer Institute (P50CA126752)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK058192, F30DK082107)
  • National Institute of Biomedical Imaging and Bioengineering (R01EB005173)
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Blood disorders and treatments
  • Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
Keywords
hematopoietic stem cells, interferon-gamma, chronic bacterial infection, Mycobacterium avium, HSC proliferation, HSC quiescence, hepatic stellate cell activation, interferon-alpha, bone marrow homeostasis, immune cell depletion, HIV/AIDS, tuberculosis, bone marrow transplantation
MeSH terms
Animals, Cell Count, Chronic Disease, Hematopoietic Stem Cells, Homeostasis, Interferon-gamma, Mice, Inbred C57BL, Mycobacterium avium, Tuberculosis, Signal Transduction, Bone Marrow Transplantation, Interferon-alpha, Multipotent Stem Cells, Cell Proliferation, Mice

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