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From the lungs and beyond: host-fungal interactions in disseminated aspergillosis

Destani Sanchez1, Sarah Beattie1

  • 1Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, United States.

Current Opinion in Microbiology
|July 16, 2026
PubMed

Insights

Disseminated aspergillosis, a severe fungal infection, occurs when Aspergillus escapes the lungs. Understanding these mechanisms is crucial for improving patient outcomes in invasive aspergillosis.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Pathogenesis

Background:

  • Invasive aspergillosis typically affects the lungs.
  • Fungal dissemination from the lungs leads to secondary infections with worse outcomes.
  • Understanding dissemination mechanisms is vital for treating invasive aspergillosis.

Purpose of the Study:

  • To review the molecular and cellular mechanisms of Aspergillus fumigatus dissemination.
  • To focus on host-pathogen interactions within the vasculature.
  • To identify areas for future research.

Main Methods:

  • Literature review of molecular and cellular events.
  • Analysis of fungal morphogenesis, adhesion, and vascular barrier penetration.
  • Examination of host-pathogen interactions at the vascular interface.

Main Results:

  • Fungal dissemination involves complex interactions at the host-pathogen interface.
  • Morphogenesis, endothelial adhesion, and vascular penetration are key to hematogenous spread.
  • Specific molecular and cellular events facilitate fungal escape from the lungs.

Conclusions:

  • Fungal dissemination is a critical factor in severe invasive aspergillosis.
  • Further research into vascular interactions is needed.
  • Targeting dissemination mechanisms may improve treatment strategies for invasive aspergillosis.

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