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Invasive mold infections: virulence and pathogenesis of mucorales

Giulia Morace1, Elisa Borghi

  • 1Department of Public Health, Microbiology, and Virology, Università degli Studi di Milano, Via C. Pascal 36, 20133 Milan, Italy.

International Journal of Microbiology
|November 29, 2011
PubMed

Insights

Invasive fungal infections caused by Mucorales are increasing in immunocompromised patients, often leading to fatal outcomes. Understanding the pathogenesis, virulence factors, and host immune interactions of these fungi is critical.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Immunology

Background:

  • Mucorales fungi are increasingly implicated in severe invasive fungal infections, particularly in immunocompromised individuals.
  • Patients with hematological malignancies, uncontrolled diabetes, or undergoing specific treatments (deferoxamine, dialysis) are at higher risk.
  • Invasive mucormycoses often result in fatal outcomes, yet the infection's pathogenesis remains poorly understood.

Purpose of the Study:

  • To elucidate the pathogenesis of invasive mucormycoses.
  • To identify the role of specific virulence determinants in Mucorales infections.
  • To understand the interaction between Mucorales fungi and the host immune system.

Main Methods:

  • Review of current literature on Mucorales and invasive fungal infections.
  • Analysis of pathogenic features, including vascular invasion and neurotropism.
  • Investigation into the role of iron availability in fungal pathogenesis.

Main Results:

  • Mucorales, primarily from the Mucoraceae family, cause most invasive mucormycoses.
  • The pathogenic role of toxins produced by Mucorales is currently unknown.
  • Free iron availability in host tissues is considered crucial for disease development.

Conclusions:

  • Further research is needed to understand Mucorales pathogenesis and virulence factors.
  • Elucidating host-pathogen interactions is essential for developing effective treatments.
  • Targeting iron availability may represent a therapeutic strategy against invasive mucormycoses.

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