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Related Concept Videos

Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Antifungal Agents01:15

Antifungal Agents

Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...

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Experimental models of cryptococcosis.

Wilber Sabiiti1, Robin C May, E Rhiannon Pursall

  • 1School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.

International Journal of Microbiology
|October 19, 2011
PubMed
Summary
This summary is machine-generated.

Cryptococcosis is a dangerous fungal infection affecting one million people annually. This review compares various experimental models used to study the complex interactions between the fungus and host cells during disease progression.

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Area of Science:

  • Mycology
  • Infectious Diseases
  • Immunology

Background:

  • Cryptococcosis is a severe fungal infection impacting approximately one million individuals globally each year.
  • The disease pathogenesis involves intricate interactions between the fungal pathogen and various host cell types.
  • Understanding these host-pathogen dynamics is crucial for developing effective treatments.

Purpose of the Study:

  • To review and compare the diverse experimental models currently employed in cryptococcosis research.
  • To evaluate the advantages and limitations of each model system for studying host-pathogen interactions.
  • To provide a resource for researchers selecting appropriate models for their studies.

Main Methods:

  • Literature review of published studies utilizing cellular, tissue, and animal models for cryptococcosis.
  • Comparative analysis of model systems based on their ability to recapitulate key aspects of cryptococcal disease.
  • Assessment of model systems for their suitability in studying fungal entry, dissemination, and immune responses.

Main Results:

  • Various cellular models (e.g., macrophages, epithelial cells) offer insights into initial host-fungus interactions.
  • Tissue models (e.g., organoids, lung explants) provide a more complex microenvironment for studying fungal invasion.
  • Animal models (e.g., murine models) are essential for understanding systemic dissemination and host immune responses, despite limitations in fully replicating human disease.

Conclusions:

  • No single model system perfectly replicates all aspects of human cryptococcosis.
  • A combination of different experimental models is often necessary to comprehensively study cryptococcosis.
  • Continued development and refinement of experimental models are vital for advancing cryptococcosis research and therapeutic strategies.