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"Characterization of transcription factors that have the basic domain" zipper "leucine (bZIP) ATF1 in Aspergillus fumigatus"

Grant number: 16/21392-2
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2017
Effective date (End): December 31, 2020
Field of knowledge:Biological Sciences - Microbiology - Biology and Physiology of Microorganisms
Principal researcher:Gustavo Henrique Goldman
Grantee:Lilian Pereira Silva
Home Institution: Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

Aspergillus fumigatus is an opportunistic fungus that mainly affects immunocompromised patients. The main syndrome caused by A. fumigatus is invasive pulmonary aspergillosis, which occurs by inhalation of spores. Since immunocompromised patients do not have an active immune defense system, these spores settle in the alveolar Broncos germinating and producing hyphae. Different metabolic pathways are studied to understand the resistance mechanisms of the immune system defenses and virulence of A. fumigatus. The MAPK-HOG1 routes are highlighted in this study because they are related to phosphorylation and activation of transcription factors of the family "zipper" of ATF1 leucine. The ATF1 has aroused interest because of its role in orthologous as Schizosaccharomyces. pombe, a transcriptional activator of genes that respond to osmotic and oxidative stress. Therefore, this study aims to understand and characterize phenotypically and biochemically the four transcription factors (AtfA, AtfB, AtfC and AtfD) family "zipper" ATF1 of leucine in A. fumigatus. We also intend to verify their importance in the process of virulence through the study of two animal models, Galleria mellonela and neutropenic mice.

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Scientific publications (5)
(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)
DE CASTRO, PATRICIA ALVES; VALERO, CLARA; CHIARATTO, JESSICA; COLABARDINI, ANA CRISTINA; PARDESHI, LAKHANSING; SILVA, LILIAN PEREIRA; ALMEIDA, FAUSTO; ROCHA, MARINA CAMPOS; SILVA, ROBERTO NASCIMENTO; MALAVAZI, IRAN; DU, WENYUE; DYER, PAUL S.; BROCK, MATTHIAS; LOURES, FLAVIO VIEIRA; WONG, KOON HO; GOLDMAN, GUSTAVO H. Novel Biological Functions of the NsdC Transcription Factor in Aspergillus fumigatus. MBIO, v. 12, n. 1 JAN-FEB 2021. Web of Science Citations: 0.
DA COSTA FILHO, AILTON PEREIRA; PEREIRA BRANCINI, GUILHERME THOMAZ; DE CASTRO, PATRICIA ALVES; VALERO, CLARA; FERREIRA FILHO, JAIRE ALVES; SILVA, LILIAN PEREIRA; ROCHA, MARINA CAMPOS; MALAVAZI, IRAN; DE MORAES PONTES, JOAO GUILHERME; FILL, TAICIA; SILVA, ROBERTO NASCIMENTO; ALMEIDA, FAUSTO; STEENWYK, JACOB L.; ROKAS, ANTONIS; DOS REIS, THAILA F.; RIES, LAURE N. A.; GOLDMAN, GUSTAVO H. Aspergillus fumigatus G-Protein Coupled Receptors GprM and GprJ Are Important for the Regulation of the Cell Wall Integrity Pathway, Secondary Metabolite Production, and Virulence. MBIO, v. 11, n. 5 SEP-OCT 2020. Web of Science Citations: 1.
SILVA, LILIAN PEREIRA; FRAWLEY, DEAN; DE ASSIS, LEANDRO JOSE; TIERNEY, CIARA; FLEMING, ALASTAIR B.; BAYRAM, OZGUR; GOLDMAN, GUSTAVO HENRIQUE. Putative Membrane Receptors Contribute to Activation and Efficient Signaling of Mitogen-Activated Protein Kinase Cascades during Adaptation of Aspergillus fumigatus to Different Stressors and Carbon Sources. MSPHERE, v. 5, n. 5 SEP-OCT 2020. Web of Science Citations: 0.
KNOWLES, SONJA L.; MEAD, MATTHEW E.; SILVA, LILIAN PEREIRA; RAJA, HUZEFA A.; STEENWYK, JACOB L.; GOLDMAN, GUSTAVO H.; OBERLIES, NICHOLAS H.; ROKAS, ANTONIS. Gliotoxin, a Known Virulence Factor in the Major Human Pathogen Aspergillus fumigatus, Is Also Biosynthesized by Its Nonpathogenic Relative Aspergillus fischeri. MBIO, v. 11, n. 1 JAN-FEB 2020. Web of Science Citations: 0.
DE CASTRO, PATRICIA ALVES; COLABARDINI, ANA CRISTINA; MANFIOLLI, ADRIANA OLIVEIRA; CHIARATTO, JESSICA; SILVA, LILIAN PEREIRA; MATTOS, ELICIANE CEVOLANI; PALMISANO, GIUSEPPE; ALMEIDA, FAUSTO; PERSINOTI, GABRIELA FELIX; ANNICK RIES, LAURE NICOLAS; MELLADO, LAURA; ROCHA, MARINA CAMPOS; BROMLEY, MICHAEL; SILVA, ROBERTO NASCIMENTO; DE SOUZA, GABRIEL SCALINI; LOURES, FLAVIO VIEIRA; MALAVAZI, IRAN; BROWN, NEIL ANDREW; GOLDMAN, GUSTAVO H. Aspergillus fumigatus calcium-responsive transcription factors regulate cell wall architecture promoting stress tolerance, virulence and caspofungin resistance. PLOS GENETICS, v. 15, n. 12 DEC 2019. Web of Science Citations: 0.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.