[Experimental pathogenicity of Cryptococcus cereanus in mice].

Area of Science:

• Mycology
• Infectious Diseases
• Animal Models

Context:

• Cryptococcus cereanus is a yeast with thermotolerant properties.
• Understanding the pathogenic potential of emerging fungal species is crucial for public health.
• Previous research has not established the experimental pathogenicity of Cr. cereanus.

Purpose:

• To investigate and demonstrate the experimental pathogenicity of Cryptococcus cereanus in a murine model.
• To characterize the host-pathogen interactions and disease progression following Cr. cereanus infection.

Summary:

• Cryptococcus cereanus was inoculated into mice, and pathogenicity was induced after repeated inoculations.
• Mice were monitored over time, with microbiological, histopathological, and blood-clinical tests performed.
• Key findings include yeast colonization in organs, characteristic brain lesions ('soap's balls'), and altered serum enzyme levels, confirming Cr. cereanus pathogenicity.

Impact:

• This research provides the first evidence of experimental pathogenicity for Cryptococcus cereanus.
• Establishes a foundation for further studies into the virulence factors and clinical relevance of this yeast.
• Highlights the importance of considering thermotolerant yeasts in the context of fungal infections.