Cited by 216Antifungal resistance and susceptibilityNeutrophil, Myeloperoxidase and Oxidative MechanismsFungal and yeast genetics research

Essential Role for Neutrophils but not Alveolar Macrophages at Early Time Points following Aspergillus fumigatus Infection

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Mircescu, Monica M., Lipuma, Lauren, van Rooijen, Nico, Pamer, Eric G., Hohl, Tobias M.·2009·The Journal of Infectious Diseases

Abstract

Alveolar macrophages and neutrophils mediate innate immune defense against the opportunistic fungal pathogen Aspergillus fumigatus and are believed to be essential for host survival following inhalation of fungal spores (conidia). Although alveolar macrophages are postulated to kill inhaled conidia and neutrophils are believed to act against hyphae, the relative contribution of alveolar macrophages and neutrophils to early defense against A. fumigatus remain incompletely defined. To more precisely characterize the contributions of alveolar macrophages and neutrophils in antifungal host defense, we selectively depleted each cell population at different times following pulmonary challenge with conidia. Mice depleted of alveolar macrophages prior to pulmonary A. fumigatus infection recruited neutrophils normally and restricted hyphal tissue invasion. In contrast, neutrophil depletion prior to or within 3 h after infection was associated with high mortality. Neutrophil depletion at later time points, however, was associated with nearly normal survival rates. Our studies suggest that neutrophils, but not alveolar macrophages, provide essential anticonidial defense and that a brief period of influx into the respiratory tree is sufficient to prevent conidial germination and invasive disease.

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  • Neutrophil depletion within 3 h after Aspergillus challenge in immunocompetent mice results in lethal infections.

    “Notably, neutrophil depletion within 3 h after Aspergillus challenge in immunocompetent mice results in lethal infections (275).”

    From Aspergillus fumigatus and Aspergillosis in 2019 (2019) · cites this paper as [275]

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  1. [1]Denning DW Invasive aspergillosis Clin Infect Dis 1998 26 781 803 9564455

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Authors
Mircescu, M. M., Lipuma, L., van Rooijen, N., Pamer, E. G., & Hohl, T. M.
Affiliations
Memorial Sloan Kettering Cancer Center (US)
Venue
The Journal of Infectious Diseases
Published
2009-08-15
Volume
200
Issue
4
Pages
647-656
ISSN
  • 0022-1899 (ISSN-L)
  • 1537-6613
OpenAlex
W2160702475
Cited by
216
References
49
Citations by year
2026: 4 · 2025: 10 · 2024: 14 · 2023: 10 · 2022: 17 · 2021: 9 · 2020: 15 · 2019: 13 · 2018: 8 · 2017: 18 · 2016: 13 · 2015: 19 · 2014: 15 · 2013: 9 · 2012: 9
FWCI
9.63
Type
journal article
Language
en
Open access
Locations
  • The Journal of Infectious Diseases (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Academic REpository of VU University Amsterdam (Vrije Universiteit Amsterdam) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
National Institute of Allergy and Infectious Diseases (T32AI055409, R01AI080619, K08AI071998, R01AI067359)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
Keywords
Aspergillus fumigatus, neutrophils, alveolar macrophages, pulmonary aspergillosis, neutrophil depletion, conidial germination, invasive aspergillosis
MeSH terms
Animals, Aspergillus fumigatus, Lung, Mice, Inbred C57BL, Neutrophils, Time Factors, Macrophages, Alveolar, Mice, Pulmonary Aspergillosis

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