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Biotechnological potential and phenotypic and molecular characterization of Salmonella enterica mutants

Grant number: 17/10051-2
Support Opportunities:Regular Research Grants
Duration: October 01, 2017 - May 31, 2020
Field of knowledge:Biological Sciences - Microbiology - Applied Microbiology
Principal Investigator:Marcelo Brocchi
Grantee:Marcelo Brocchi
Host Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

Previous results from our group indicated that null-mutants of Salmonella enterica for genes encoding Naps (Nucleoid-associated proteins) are attenuated and able to induce protection in the murine model. Data also indicated that some strains presented antitumor properties. Altogether, those results indicate an important biological role of NAPs in S. enterica. Therefore, the general objective of this project is to further investigate the biological roles of some NAPs in S. enterica and also to explore the biotechnological potential attenuated Salmonella strains as vaccines. The specific objectives are: (1) Elucidate the biological role of the NAP YbaB in S. enterica Typhimurium by phenotypic, gene expression and transcriptome analyses; (2) Characterize a strain of S. enterica Typhimurium DstpA regarding the attenuation of virulence in the murine model and a possible role of this Nap in biofilm formation; (3) Characterize the IHF (Integration-host factor) mutants of S. enterica Typhimurium regarding colonization and immunogenicity in avian; (4) Characterize the IHF (Integration-host factor) mutants of S. enterica Typhimurium regarding antitumoral activity in the murine model; (5) Construction of a recombinant attenuated S. enterica strain (RASV) carrying a DNA vaccine for ZIKV virus. This Project in intended to be conducted in collaboration with groups abroad. (AU)

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Scientific publications (6)
(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)
JORGE, G. PEREZ; MODOLO, D. G.; JAIMES-FLOREZ, Y. P.; FAVARO, W. J.; DE JESUS, M. B.; BROCCHI, M.. p53 gene delivery via a recombinant Salmonella enterica Typhimurium leads to human bladder carcinoma cell death in vitro. Letters in Applied Microbiology, v. 75, n. 4, p. 11-pg., . (17/10051-2, 15/06134-4)
PARDINI GONTIJO, MARCO TULIO; PEREIRA VIDIGAL, PEDRO MARCUS; SOTO LOPEZ, MARYORIS ELISA; BROCCHI, MARCELO. Bacteriophages that infect Gram-negative bacteria as source of signal-arrest-release motif lysins. Research in Microbiology, v. 172, n. 2, . (17/10051-2, 20/01535-9)
VILAS BOAS CORDEIRO, TAMIRES FERNANDA; PARDINI GONTIJO, MARCO TULIO; JORGE, GENESY PEREZ; BROCCHI, MARCELO. EbfC/YbaB: A Widely Distributed Nucleoid-Associated Protein in Prokaryotes. MICROORGANISMS, v. 10, n. 10, p. 15-pg., . (17/10051-2, 20/01535-9, 21/00465-0)
THAKUR, ABHIMANYU; PARRA, DIANA CAROLINA; MOTALLEBNEJAD, PEDRAM; BROCCHI, MARCELO; CHEN, HUANHUAN JOYCE. xosomes: Small vesicles with big roles in cancer, vaccine development, and therapeutic. IOACTIVE MATERIAL, v. 10, p. 281-294, . (17/10051-2)
CALARGA, ALINE PAROLIN; PARDINI GONTIJO, MARCO TULIO; PAULA DE ALMEIDA, LUIZ GONZAGA; RIBEIRO DE VASCONCELOS, ANA TEREZA; NASCIMENTO, LEANDRO COSTA; COTRIM DE MORAES BARBOSA, TAISE MARONGIO; DE CARVALHO PERRI, THALITA MARA; DOS SANTOS, SILVIA REGINA; TIBA-CASAS, MONIQUE RIBEIRO; LEMES MARQUES, ENEIDA GONCALVES; et al. Antimicrobial resistance and genetic background of non-typhoidal Salmonella enterica strains isolated from human infections in Sao Paulo, Brazil (2000-2019). Brazilian Journal of Microbiology, v. 53, n. 3, p. 14-pg., . (17/10051-2, 14/13412-8)
PARDINI GONTIJO, MARCO TULIO; JORGE, GENESY PEREZ; BROCCHI, MARCELO. Current Status of Endolysin-Based Treatments against Gram-Negative Bacteria. ANTIBIOTICS-BASEL, v. 10, n. 10, . (20/01535-9, 17/10051-2)

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