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Alternative splicing in genes coding for HSPs as a response to antifungals in the dermatophyte Trichophyton rubrum

Grant number: 18/15458-6
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): August 01, 2018
Effective date (End): January 31, 2020
Field of knowledge:Biological Sciences - Genetics - Molecular Genetics and Genetics of Microorganisms
Principal Investigator:Nilce Maria Martinez-Rossi
Grantee:João Neves da Rocha Fonseca
Host Institution: Faculdade de Medicina de Ribeirão Preto (FMRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
Associated research grant:14/03847-7 - Molecular characterization of mechanisms involved in pathogenicity and cell signaling in fungi, AP.TEM


Trichophyton rubrum is one of the most prevalent species causing dermatophytosis worldwide. Its anthropophilic character, along with its sequenced genome, makes it a very useful model for studying the biology of pathogenic fungi - and, in association, also for the recognition of potential metabolic pathways as drug targets. In the context applied to antifungal therapies, biomolecules that perform central or multiple cellular functions are especially interesting, since a dysfunction associated with them would simultaneously hamper fungal survival and the eventual acquisition of resistance to treatment. A particular group of chaperone proteins, the HSPs (Heat Shock Proteins), correspond to such prerequisites: they constitute important ways of responding to cellular stress, acting in the regulation of the activity of other proteins in processes of folding and unfolding, maintenance of the native conformation and fragmentation of aggregates. In addition to this, the response to environmental stimuli in eukaryotic organisms reveals that the mechanism of gene regulation by alternative splicing may play a fundamental role in the formation of a wide phenotypic diversity in the proteome of cells, which hence confers adaptive advantages under adverse conditions. Therefore, the main objective of the present work is to verify the presence of isoforms related to stress response proteins (HSPs) in the dermatophyte species Trichophyton rubrum when exposed to antifungal drugs.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BITENCOURT, TAMIRES A.; NEVES-DA-ROCHA, JOAO; MARTINS, MAIRA P.; SANCHES, PABLO R.; LANG, ELZA A. S.; BORTOLOSSI, JULIO C.; ROSSI, ANTONIO; MARTINEZ-ROSSI, NILCE M.. StuA-Regulated Processes in the Dermatophyte Trichophyton rubrum: Transcription Profile, Cell-Cell Adhesion, and Immunomodulation. FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY, v. 11, . (18/15458-6, 15/23435-8, 18/11319-1, 19/22596-9)
ROSSI, ANTONIO; MARTINS, MAIRA P.; BITENCOURT, TAMIRES A.; PERES, NALU T. A.; ROCHA, CARLOS H. L.; ROCHA, FLAVIANE M. G.; NEVES-DA-ROCHA, JOAO; LOPES, MARCOS E. R.; SANCHES, PABLO R.; BORTOLOSSI, JULIO C.; et al. Reassessing the Use of Undecanoic Acid as a Therapeutic Strategy for Treating Fungal Infections. Mycopathologia, v. 186, n. 3, p. 327-340, . (15/23435-8, 19/22596-9, 18/15458-6, 18/11319-1, 09/08411-4)
NEVES-DA-ROCHA, JOAO; BITENCOURT, TAMIRES A.; DE OLIVEIRA, VANDERCI M.; SANCHES, PABLO R.; ROSSI, ANTONIO; MARTINEZ-ROSSI, NILCE M.. Alternative Splicing in Heat Shock Protein Transcripts as a Mechanism of Cell Adaptation in Trichophyton rubrum. CELLS, v. 8, n. 10, . (15/23435-8, 14/03847-7, 18/15458-6)

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