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Trichosporon hyphae should be carefully differentiated from Aspergillus hyphae in tissue: A case report.
Pathol Int
January 2025
Department of Microbiology, Meiji Pharmaceutical University, Kiyose, Japan.
Role of Hog1-mediated stress tolerance in biofilm formation by the pathogenic fungus Trichosporon asahii.
Sci Rep
November 2024
Department of Microbiology, Meiji Pharmaceutical University, 2-522-1, Noshio, Kiyose, Tokyo, 204-8588, Japan.
Article Synopsis
- Trichosporon asahii is a fungus that can cause bloodstream infections in immunocompromised patients, especially those with low white blood cell counts (neutropenia).
- The fungus can switch between yeast and hyphal forms, forming biofilms on medical devices like catheters, a process potentially influenced by a protein called Hog1.
- Research revealed that a mutant strain of T. asahii lacking the hog1 gene produced more biofilm in rich lab conditions but less in living models like silkworms, indicating that Hog1 plays a crucial role in biofilm formation under different environmental stresses.
Adhesion and biofilm formation by two clinical isolates of Trichosporon Cutaneum in various environmental conditions.
Braz J Microbiol
June 2024
Department of Mycology and Genetics, University of Wrocław, Przybyszewskiego Str 63/77, Wrocław, Poland.
Article Synopsis
- - Trichosporon spp. are opportunistic pathogens causing superficial and invasive infections, with T. asahii being the most common, but T. cutaneum is notable for causing white Piedra and onychomycosis.
- - This study investigates T. cutaneum's biofilm formation and adhesion on different surfaces (like glass and stainless steel) under varying conditions, finding that nutrient availability significantly affects biofilm efficiency.
- - The research also shows that T. cutaneum can form structures called hyphae, which enhance its biofilm production and tolerance to fluconazole, a common antifungal treatment.
Hyphal Growth in Is Accelerated by the Addition of Magnesium.
Microbiol Spectr
June 2023
Laboratory of Yeast Systematics, Tokyo NODAI Research Institute, Tokyo University of Agriculture, Setagaya, Tokyo, Japan.
Fungal dimorphism involves two morphologies: a unicellular yeast cell and a multicellular hyphal form. Invasion of hyphae into human cells causes severe opportunistic infections. The transition between yeast and hyphal forms is associated with the virulence of fungi; however, the mechanism is poorly understood.
View Article and Find Full Text PDFA Case of Fatal Invasive Trichosporonosis in the Setting of Immunosuppression and Post-COVID-19 Pneumonia.
Cureus
February 2023
Infectious Disease, Eastern Virginia Medical School, Norfolk, USA.
is an opportunistic fungus that forms septate hyphae and pseudohyphae, resembling , and causes fungemia in susceptible individuals. Risk factors for infection include immunosuppression, IV catheters, and malignancy. In the present case, a 67-year-old male with a history of renal transplant on immunosuppressive therapy was hospitalized for coronavirus disease 2019 (COVID-19) pneumonia.
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