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Mostrando ítems 21-37 de 37

    • Mycobacterium bovis Dmce2 double deletion mutant protects cattle against challenge with virulent M. bovis 

      Blanco, Federico Carlos; Bianco, María Veronica; Garbaccio, Sergio Gabriel; Meikle, Virginia; Gravisaco, María José; Montenegro, Valeria Noely; Alfonseca, Edgar; Singh, Mahavir G.; Barandiaran, Soledad; Canal, Ana María; Vagnoni, Lucas Emilio; Buddle, Bryce Malcom; Bigi, Fabiana; Cataldi, Angel Adrian (Elsevier, 2013-05)
      A Mycobacterium bovis strain deleted in mce2A and mce2B genes (M. bovis Δmce2) was tested as an experimental vaccine in cattle challenged with a virulent M. bovis strain. Three-and-a-half-month old calves (n = 5 to 6 per ...

    • Mycobacterium bovis ESAT-6, CFP-10 and EspC antigens show high conservation among field isolates 

      Encinas, Micaela; Marfil, Maria Jimena; Garbaccio, Sergio Gabriel; Barandiaran, Soledad; Huertas, Pablo Sebastian; Morsella, Claudia Graciela; Macias, Analía; Magnano, Gabriel; Zapata, L.; Bigi, Fabiana; Cataldi, Angel Adrian; Paolicchi, Fernando; Zumarraga, Martin Jose; Eirin, Maria Emilia (Elsevier, 2018-07)
      ESAT-6, CFP-10 and EspC are virulence factors that have been extensively assayed for bovine and human tuberculosis diagnosis due their potent T-cell inducing activities. While polymorphisms of ESAT-6 and CFP-10 were analyzed, ...

    • Mycobacterium bovis requires P27 (LprG) to arrest phagosome maturation and replicate within bovine macrophages 

      Vazquez, Cristina Lourdes; Bianco, María Veronica; Blanco, Federico Carlos; Forrellad, Marina Andrea; Gutierrez, Maximiliano Gabriel; Bigi, Fabiana (2017-03)
      Mycobacterium bovis causes tuberculosis in a wide variety of mammals, with strong tropism for cattle and eventually humans. P27, also called LprG, is among the proteins involved in the mechanisms of the virulence and ...

    • Patterns and processes of mycobacterium bovis evolution revealed by phylogenomic analyses 

      Patané, José S.L.; Martins Jr, Joaquim; Castelão, Ana Beatriz C.; Nishibe, Christiane; Montera, Luciana; Bigi, Fabiana; Zumarraga, Martin Jose; Cataldi, Angel Adrian; Fonseca Junior, Antônio; Roxo, Eliana; Osório, Ana Luiza Alves Rosa; Jorge, Klaudia dos Santos Goncalves; Thacker, Tyler C.; Almeida, Nalvo Franco; Araujo, Flabio Ribeiro de; Setubal, Joâo C. (Oxford University Press, 2017-03)
      Mycobacterium bovis is an important animal pathogen worldwide that parasitizes wild and domesticated vertebrate livestock as well as humans. A comparison of the five M. bovis complete genomes from the United Kingdom, South ...

    • Polymorphisms of 20 regulatory proteins between Mycobacterium tuberculosis and Mycobacterium bovis 

      Bigi, María Mercedes; Blanco, Federico Carlos; Araujo, Flabio Ribeiro de; Thacker, Tyler C.; Zumarraga, Martin Jose; Cataldi, Angel Adrian; Soria, Marcelo Abel; Bigi, Fabiana (2016)
      Mycobacterium tuberculosis and Mycobacterium bovis are responsible for tuberculosis in humans and animals, respectively. Both species are closely related and belong to the Mycobacterium tuberculosis complex (MTC). M. ...

    • Recent advances in non-specific immune memory against bovine tuberculosis 

      Blanco, Federico Carlos; Sabio Y Garcia, Julia Veronica; Bigi, Fabiana (Elsevier, 2021-04)
      Bovine tuberculosis is an important worldwide disease mainly related to cattle, although it also affects other mammals, including humans. In recent years, there have been considerable advances in the knowledge of the immune ...

    • Replication and transmission features of two experimental vaccine candidates against bovine tuberculosis subcutaneously administrated in a murine model 

      Ferrara Muñiz, Ximena; Garcia, Elizabeth Andrea; Blanco, Federico Carlos; Bigi, Fabiana; Zumarraga, Martin Jose; Cataldi, Angel Adrian; Eirin, Maria Emilia (Elsevier, 2022-05)
      Cattle vaccination is an attractive approach in compliance with control and eradication programs against Bovine Tuberculosis (bTB). Today, there is no anti bTB vaccine licensed. Two vaccine candidates, MbΔmce2 and MbΔmce2-phoP ...

    • Respuesta inmune en terneros experimentalmente infectados con diferentes dosis de Mycobacterium bovis 

      Blanco, Federico Carlos; Bianco, María Veronica; Meikle, Virginia; Garbaccio, Sergio Gabriel; Vagnoni, Lucas Emilio; Cataldi, Angel Adrian; Bigi, Fabiana (Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2011-08)
      La tuberculosis bovina es una enfermedad zoonótica producida por Mycobacterium bovis que afecta a animales de producción causando pérdidas económicas y representa, además, un problema para la salud pública. El conocimiento ...

    • Role of PhoPR in the response to stress of Mycobacterium bovis 

      Garcia, Elizabeth Andrea; Blanco, Federico Carlos; Klepp, Laura Ines; Pazos, Adriana Alejandra; McNeil, Michael; Jackson, Mary; Bigi, Fabiana (Elsevier, 2021-02)
      PhoP is part of the two-component PhoPR system that regulates the expression of virulence genes of Mycobacteria. The goal of this work was to elucidate the role of PhoP in the mechanism that Mycobacterium bovis, the causative ...

    • Rv2577 of Mycobacterium tuberculosis is a virulence factor with dual phosphatase and phosphodiesterase functions 

      Forrellad, Marina Andrea; Blanco, Federico Carlos; Marrero Diaz De Vill, Rubén; Vazquez, Cristina Lourdes; Yaneff, Agustín; Garcia, Elizabeth Andrea; Gutierrez, Maximiliano Gabriel; Durán, Rosario; Villarino, Andrea; Bigi, Fabiana (Frontiers Media, 2020-10)
      Tuberculosis, a lung disease caused by Mycobacterium tuberculosis (Mtb), is one of the ten leading causes of death worldwide affecting mainly developing countries. Mtb can persist and survive inside infected cells through ...

    • Rv2617c and P36 are virulence factors of pathogenic mycobacteria involved in resistance to oxidative stress 

      Forrellad, Marina Andrea; Vazquez, Cristina Lourdes; Blanco, Federico Carlos; Klepp, Laura Ines; Garcia, Elizabeth Andrea; Rocha, Rosana Valeria; Villafañe, Luciana Maria; Bigi, María Mercedes; Gutierrez, Maximiliano Gabriel; Bigi, Fabiana (Taylor & Francis, 2019-12)
      In this study, we characterized the role of Rv2617c in the virulence of Mycobacterium tuberculosis. Rv2617c is a protein of unknown function unique to M. tuberculosis complex (MTC) and Mycobacterium leprae. In vitro, this ...

    • Single nucleotide polymorphisms may explain the contrasting phenotypes of two variants of a multidrug-resistant Mycobacterium tuberculosis strain 

      Bigi, María Mercedes; López, Beatriz; Blanco, Federico Carlos; Sasiain, María del Carmen; De La Barrera, Silvia Susana; Marti, Marcelo Adrián; Sosa, Ezequiel Jorge; Fernandez Do Porto, Darío Augusto; Ritacco, Viviana; Bigi, Fabiana; Soria, Marcelo Abel (2017)
      Globally, about 4.5% of new tuberculosis (TB) cases are multi-drug-resistant (MDR), i.e. resistant to the two most powerful first-line anti-TB drugs. Indeed, 480,000 people developed MDR-TB in 2015 and 190,000 people died ...

    • Study of the in vivo role of Mce2R, the transcriptional regulator of mce2 operon in Mycobacterium tuberculosis 

      Forrellad, Marina Andrea; Bianco, María Veronica; Blanco, Federico Carlos; Nuñez, Javier; Klepp, Laura Ines; Vazquez, Cristina Lourdes; Santangelo, María De La Paz; Rocha, Rosana Valeria; Soria, Marcelo; Golby, Paul; Gutierrez, Maximiliano Gabriel; Bigi, Fabiana (BMC, 2013-09)
      Background: Tuberculosis is one of the leading causes of mortality throughout the world. Mycobacterium tuberculosis, the agent of human tuberculosis, has developed strategies involving proteins and other compounds called ...

    • The subunit vaccine H65 + CAF01 increased the BCG- protection against Mycobacterium bovis infection in a mouse model of bovine tuberculosis 

      Blanco, Federico Carlos; Garcia, Elizabeth Andrea; Aagaard, Claus; Bigi, Fabiana (Elsevier, 2021-05)
      H65, a fusion protein of three pairs of ESX-secreted antigens of Mycobacterium tuberculosis and Mycobacterium bovis, formulated with the liposomal adjuvant CAF01 has been shown to confer protection against M. tuberculosis ...

    • Tuberculosis vaccine candidates based on mycobacterial cell envelope components 

      Sarmiento, María E.; Alvarez, N.; Chin, K.L.; Bigi, Fabiana; Tirado Hernández, Yanely; García, M.A.; Anis, F.Z.; Norazmi, Mohd Nor; Acosta, Armando (Elsevier, 2019-03)
      Even after decades searching for a new and more effective vaccine against tuberculosis, the scientific community is still pursuing this goal due to the complexity of its causative agent, Mycobacterium tuberculosis (Mtb). ...

    • Uso de Brucella abortus como vector para la expresión de antígenos heterólogos 

      Sabio Y Garcia, Julia Veronica (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 2012-03)
      La brucelosis es una zoonosis bacteriana causada por especies del género Brucella. B. abortus S19 es la cepa vacunal en uso en nuestro país. Debido a su capacidad para despertar una respuesta inmune celular y humoral, B. ...

    • Virulence factors of the Mycobacterium tuberculosis complex 

      Forrellad, Marina Andrea; Klepp, Laura Ines; Gioffre, Andrea; Sabio y Garcia, Julia Veronica; Morbidoni, Hector R.; Santangelo, María De La Paz; Cataldi, Angel Adrian; Bigi, Fabiana (Taylor & Francis, 2013-01)
      The Mycobacterium tuberculosis complex (MTBC) consists of closely related species that cause tuberculosis in both humans and animals. This illness, still today, remains to be one of the leading causes of morbidity and ...