[Immunopathogenesis of invasive mould infections]

Carolina García-Vidal1, Miguel Salavert Lletí2

  • 1Servicio de Enfermedades Infecciosas, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, España.

Insights

This review details the pathogenesis of invasive fungal infections caused by filamentous fungi like Aspergillus and Fusarium in immunocompromised patients. It covers host defenses, immune pathways, and fungal virulence factors.

Area of Science:

  • Mycology
  • Immunology
  • Pathogenesis

Background:

  • Invasive fungal infections (IFIs) caused by filamentous fungi pose a significant threat to immunocompromised individuals.
  • Key fungal genera implicated include Aspergillus, Fusarium, Scedosporium, and mucorales.
  • Understanding IFIs is crucial for managing severe opportunistic infections.

Purpose of the Study:

  • To review the pathogenesis of major filamentous fungal infections in humans.
  • To elucidate the complex interactions between fungi and the host immune system.
  • To highlight fungal virulence factors contributing to disease.

Main Methods:

  • Literature review focusing on pathogenesis of invasive mycoses.
  • Discussion of host-pathogen interactions from initial contact to immune response.
  • Analysis of innate and adaptive immunity pathways involved in fungal recognition and clearance.

Main Results:

  • Filamentous fungi like Aspergillus and Fusarium are significant causes of IFIs.
  • Host defense mechanisms, including mucosal immunity and immune recognition receptors, are critical.
  • Pathways linking innate and adaptive immunity play a role in controlling fungal infections.
  • Fungal virulence factors are essential for establishing infection and evading host defenses.

Conclusions:

  • IFIs by filamentous fungi are complex diseases requiring a thorough understanding of pathogenesis.
  • Effective host defense and knowledge of fungal virulence are key to combating these infections.
  • Further research into immune pathways and therapeutic targets is warranted.

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