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The pathogenesis of acute systemic candidiasis in a susceptible inbred mouse strain
Abstract:
The histopathological features of the acute infection by Candida albicans in susceptible CBA/H mice, as well as its dissemination in various organs has been examined. The brain, in which the localization of blastospores is minimal, is the organ most severely affected. A significant deposition of blastospores occurs in lungs, liver, spleen and kidney, but of these organs, only in the kidneys is infection established. A transient myocarditis follows the minor blastospore deposition that occurs in the heart. Infection in the affected organs is characterized by abscess formation while in the brain the process is complicated by the development of hydrocephalus and a pachymeningitis that erodes the petrous temporal and involves the vestibular apparatus. There is also infection of the retinae with an accompanying endophthalmitis.
Insights
Candida albicans causes severe brain damage in mice, leading to hydrocephalus and eye infections. While kidneys establish infection, other organs like lungs and liver show significant blastospore deposition.
Area of Science:
- Mycology
- Pathology
- Immunology
Background:
- Candida albicans is an opportunistic fungal pathogen.
- Understanding its dissemination and organ-specific pathology is crucial for antifungal strategies.
Purpose of the Study:
- To investigate the histopathological effects and organ dissemination of acute Candida albicans infection in CBA/H mice.
Main Methods:
- Histopathological examination of various organs in infected mice.
- Assessment of Candida albicans blastospore localization and tissue damage.
Main Results:
- The brain was the most severely affected organ, despite minimal blastospore localization, showing hydrocephalus and pachymeningitis.
- Kidneys showed established infection with abscess formation, while lungs, liver, and spleen had significant blastospore deposition.
- Myocarditis, retinal infection, and endophthalmitis were also observed.
Conclusions:
- Candida albicans exhibits complex dissemination patterns and organ-specific pathology.
- The brain's susceptibility and the development of severe complications like hydrocephalus highlight its vulnerability.
- Kidney infection establishment and associated abscesses indicate significant renal pathology.