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Immune responses to airborne fungi and non-invasive airway diseases

Gaëlle Vacher1, Hélène Niculita-Hirzel, Thierry Roger

  • 1Service of Occupational Hygiene, Institute for Work and Health, University of Lausanne and Geneva, Biopole 1 Building, Corniche 2, 1066, Epalinges-Lausanne, Switzerland.

Seminars in Immunopathology
|December 16, 2014
PubMed

Insights

Inhaled fungal particles can cause respiratory issues, with effects varying by species and host genetics. Research into diverse fungal species is crucial for understanding immune responses and preventing airway diseases.

Area of Science:

  • Immunology
  • Environmental Health
  • Mycology

Background:

  • Fungal particle inhalation is common, but disease development depends on exposure conditions and host genetics.
  • Fungal particles can act as irritants, allergens, or pathogens, leading to diverse respiratory symptoms.
  • Thermophilic fungi (e.g., Aspergillus) can act as irritants, allergens, and pathogens, while mesophilic fungi (e.g., Cladosporium) are linked to allergic and non-allergic airway diseases.

Purpose of the Study:

  • To review current knowledge on airborne fungal particle interactions with the host immune system.
  • To highlight differences in immune recognition of various fungal species.
  • To emphasize the need for research on non-conventional mesophilic fungal species.

Main Methods:

  • Literature review of studies on fungal inhalation and immune responses.
  • Analysis of fungal species diversity and composition.
  • Examination of immune sensing mechanisms and host-fungal interactions.

Main Results:

  • Fungal particle exposure can trigger irritant, allergic, or infectious responses in the respiratory tract.
  • Immune system recognition varies significantly based on fungal species and particle composition.
  • Specific fungal species, like Aspergillus and Penicillium, exhibit multifaceted pathogenic potentials.

Conclusions:

  • The diversity of inhaled fungi and their complex composition influence immune recognition and response.
  • Understanding these interactions is key to preventing fungal-induced airway pathologies.
  • Further research on less-studied mesophilic fungi is essential for comprehensive knowledge.

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