Purpose Of Review: Despite the availability of effective vaccines for certain animal species, vaccination against dermatophytosis requires improvement and further development in both animals and humans. This review provides an update on the current situation and focuses on recent advances in host-dermatophyte relationships that could have implications for future vaccination against the most prevalent of the fungal diseases.
Recent Findings: Numerous dermatophytic virulence factors have recently been isolated and characterized at the molecular level, notably secreted proteases involved in the invasion of the keratin network. Their precise roles in the different steps of the infectious process and in immunopathogenesis are being studied, while all aspects of the host immune response against dermatophytes, including the innate response, are becoming increasingly documented. In addition, new molecular tools are now available for studying dermatophytes, which will accelerate research on this topic.
Summary: The growth of knowledge concerning all aspects of the host-dermatophyte relationship should contribute towards sound strategies for the development of effective and safe vaccines against dermatophytosis.
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http://dx.doi.org/10.1097/QCO.0b013e3282f55de6 | DOI Listing |
Mycoses
January 2025
Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China.
Background: Microsporum canis, a dermatophyte commonly associated with pets, is a leading cause of severe tinea capitis. The increasing prevalence of antifungal resistance among dermatophytes poses a significant global health challenge.
Objectives: This study aims to define the updated antifungal susceptibility profile of M.
Mycoses
January 2025
Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China.
Objectives: Tinea capitis remains a common fungal infection in children worldwide. Species identification is critical for determining the source of infection and reducing transmission. In conventional methods, macro- and microscopic analysis is time-consuming and results in slow fungal growth or low specificity.
View Article and Find Full Text PDFJ Invest Dermatol
December 2024
Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba. Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI) CONICET, ARGENTINA. Electronic address:
Fungal skin infections significantly contribute to the global human disease burden, yet our understanding of cutaneous immunity against dermatophytes remains limited. Previously, we developed a model of epicutaneous infection with Microsporum canis in C57BL/6 mice, which highlighted the critical role of IL-17RA signaling in anti-dermatophyte defenses. Here, we expanded our investigation to the human pathogen Nannizzia gypsea and demonstrated that skin γδTCRint and CD8/CD4 double-negative βTCR+ T cells are the principal producers of IL-17A during dermatophytosis.
View Article and Find Full Text PDFTinea incognito (TI) is a dermatophyte infection that often presents atypically due to the inappropriate use of corticosteroids or other immunosuppressive treatments, complicating its diagnosis and management. This case report describes a 29-year-old American Indian (Maya) female from Yucatán, Mexico, initially diagnosed with inverse psoriasis and treated with topical corticosteroids. Over several months, her condition deteriorated, with lesions spreading and worsening, ultimately revealing TI.
View Article and Find Full Text PDFMycopathologia
October 2024
Laboratório de Investigação Médica LIM 53, Divisão de Clínica Dermatológica, Instituto de Medicina Tropical, Faculdade de Medicina, Hospital das Clínicas, Universidade de São Paulo, São Paulo, São Paulo, Brasil.
Dermatophytosis is a very common superficial mycosis, but there are few studies about the human immune response to dermatophytes. We aim to analyze the in situ expression of TNF-α and IL-10 in human dermatophytosis. Expression of TNF-α and IL-10 were evaluated in skin samples from 10 patients with dermatophytosis and 12 healthy subjects using an immunohistochemistry assay.
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