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Functional characterization of genes involved in mechanisms of response and resistance to acriflavine in dermatophytes

Grant number: 13/25820-0
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): January 01, 2014
Effective date (End): June 30, 2014
Field of knowledge:Biological Sciences - Genetics - Molecular Genetics and Genetics of Microorganisms
Principal researcher:Nilce Maria Martinez-Rossi
Grantee:Gabriel Bordin Martin
Home Institution: Faculdade de Medicina de Ribeirão Preto (FMRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
Associated research grant:08/58634-7 - Functional and comparative genomics in fungi, AP.TEM


Cytotoxic agents are commonly used to control infections, but their mechanism of action is often poorly understood. Dermatophytes of the genus Trichophyton infect healthy individuals and dermatophytosis are among the few fungal diseases that are transmitted directly from person to person. T. rubrum is a cosmopolitan fungus and the most common cause of nail and skin infections. It is, in many cases, resistant to treatment, causing allergic reactions and decreases patients quality of life. Despite its importance, little is known about the molecular basis of pathogenesis and gene expression pattern in response to antifungal agents. Large scale transcriptional analysis of T. rubrum in response to acriflavine showed differential modulation of genes possibly associated with the installation and maintenance of infection that may correspond to potential therapeutic targets. This project aims to elucidate the molecular basis of the adaptability of fungi that enable their survival in the host and to identify genes whose products are potential therapeutic targets. Furthermore, these results may reveal regulatory circuits that might be involved in the stress response caused by exposure to antifungal drugs.

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