Search Results - "Cristina S. Costa"

The Ambiguous Roles of Extracellular Vesicles in HIV Replication and Pathogenesis by Dias, Marcos V S, Costa, Cristina S, daSilva, Luis L P

“…Cells from all kingdoms of life can release membrane-enclosed vesicles to the extracellular milieu. These extracellular vesicles (EVs) may function as…”
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Protective role of extracellular catalase (KatA) against UVA radiation in Pseudomonas aeruginosa biofilms by Pezzoni, Magdalena, Pizarro, Ramón A., Costa, Cristina S.

“…•KatA activity is present in the matrix of P. aeruginosa biofilms.•Extracellular KatA is essential in the defense of P. aeruginosa biofilms against UVA.•KatA…”
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Bioleaching of a Chalcocite-Dominant Copper Ore from Salta, Argentina, by Mesophilic and Thermophilic Microorganisms by Agustina Amar, Francisco L. Massello, Cristina S. Costa, Camila Castro, Edgardo R. Donati

“…The study and development of new sustainable mining methods to exploit low-grade ores and secondary metallic resources are essential to meet global demand and…”
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Protective effect of low UVA irradiation against the action of lethal UVA on Pseudomonas aeruginosa: Role of the relA gene by Pezzoni, Magdalena, Pizarro, Ramón A., Costa, Cristina S.

“…► Pre-exposure of Pseudomonas aeruginosa to low UVA doses protects against subsequent lethal UVA. ► The adaptive mechanism of photo-protection depends on the…”
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Role of Pel and Psl polysaccharides in the response of Pseudomonas aeruginosa to environmental challenges: oxidative stress agents (UVA, H 2 O 2 , sodium hypochlorite) and its competitor Staphylococcus aureus by Grossich, Romina, Lemos Vilches, Martín, Costa, Cristina S, Pezzoni, Magdalena

“…is a versatile bacterium capable of adapting to a wide range of stress factors, including solar UVA radiation (400-315 nm). High UVA doses produce lethal…”
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Homeophasic Adaptation in Response to UVA Radiation in Pseudomonas aeruginosa: Changes of Membrane Fatty Acid Composition and Induction of desA and desB Expression by Pezzoni, Magdalena, De Troch, Marleen, Pizarro, Ramón A., Costa, Cristina S.

“…ABSTRACT In bacteria, exposure to changes in environmental conditions can alter membrane fluidity, thereby affecting its essential functions in cell…”
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Role of quorum sensing in UVA-induced biofilm formation in Pseudomonas aeruginosa by Pezzoni, Magdalena, Pizarro, Ramón A., Costa, Cristina S.

“…Pseudomonas aeruginosa , a versatile bacterium present in terrestrial and aquatic environments and a relevant opportunistic human pathogen, is largely known…”
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Imbalance of antioxidant enzymes in tumor cells and inhibition of proliferation and malignant features by scavenging hydrogen peroxide by Policastro, Lucía, Molinari, Beatriz, Larcher, Fernando, Blanco, Patricia, Podhajcer, Osvaldo L., Costa, Cristina S., Rojas, Paola, Durán, Hebe

“…The aim of this study was to evaluate the endogenous alterations of the antioxidant enzymes in tumor cells and to specifically compensate the resulting changes…”
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New envelope stress factors involved in σ E activation and conditional lethality of rpoE mutations in Salmonella enterica by Amar, Agustina, Pezzoni, Magdalena, Pizarro, Ramón A, Costa, Cristina S

“…Salmonella enterica serovar Typhimurium (S. typhimurium) can cause food- and water-borne illness with diverse clinical manifestations. One key factor for S…”
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Exposure to low doses of UVA increases biofilm formation in Pseudomonas aeruginosa by Pezzoni, Magdalena, Pizarro, Ramón A., Costa, Cristina S.

“…The establishment of bacterial biofilms on abiotic surfaces is a complex process regulated by multiple genetic regulators and environmental factors which are…”
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Rab27a GTPase and its effector Myosin Va are host factors required for efficient Oropouche virus cell egress by Concha, Juan O, Gutierrez, Kristel, Barbosa, Natalia, Rodrigues, Roger L, de Carvalho, Andreia N, Tavares, Lucas A, Rudd, Jared S, Costa, Cristina S, Andrade, Barbara Y G, Espreafico, Enilza M, Crump, Colin M, daSilva, Luis L P

“…Oropouche fever, a debilitating illness common in South America, is caused by Oropouche virus (OROV), an arbovirus. OROV belongs to the Peribunyaviridae…”
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HIV-1 Nef Changes the Proteome of T Cells Extracellular Vesicles Depleting IFITMs and Other Antiviral Factors by da Silva-Januário, Mara E, da Costa, Cristina S, Tavares, Lucas A, Oliveira, Ana K, Januário, Yunan C, de Carvalho, Andreia N, Cassiano, Murilo H A, Rodrigues, Roger L, Miller, Michael E, Palameta, Soledad, Arns, Clarice W, Arruda, Eurico, Paes Leme, Adriana F, daSilva, Luis L P

“…Extracellular vesicles (EVs) are biomolecule carriers for intercellular communication in health and disease. Nef is a HIV virulence factor that is released…”
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Effects of dietary protein levels on activities of protease and expression of ingestion and protein digestion‐related genes in Nile tilapia juveniles by Santos, Welliene M., Costa, Leandro S., López‐Olmeda, Jose F., Costa, Natália Cristina S., Santos, Fabio A. C., Gamarano, Pedro G., Silva, Walisson S., Rosa, Priscila V., Luz, Ronald K., Ribeiro, Paula A. P.

“…While some studies have investigated the effects of dietary protein on the activities of protease in Nile tilapia, little information exists about these…”
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Two Functional Variants of AP-1 Complexes Composed of either γ2 or γ1 Subunits Are Independently Required for Major Histocompatibility Complex Class I Downregulation by HIV-1 Nef by Tavares, Lucas A, de Carvalho, Julianne V, Costa, Cristina S, Silveira, Roberta M, de Carvalho, Andreia N, Donadi, Eduardo A, daSilva, Luis L P

“…The HIV-1 accessory protein Nef downregulates the cell surface expression of major histocompatibility complex class I (MHC-I) molecules to facilitate virus…”
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Response to lethal UVA radiation in the Antarctic bacterium Pseudomonas extremaustralis: polyhydroxybutyrate and cold adaptation as protective factors by Tribelli, Paula M., Pezzoni, Magdalena, Brito, María Gabriela, Montesinos, Nahuel V., Costa, Cristina S., López, Nancy I.

“…Pseudomonas extremaustralis is an Antarctic bacterium with high stress resistance, able to grow under cold conditions. It is capable to produce…”
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Antibiofilm effect of mesoporous titania coatings on Pseudomonas aeruginosa biofilms by Pezzoni, Magdalena, Catalano, Paolo N., Delgado, Diana C., Pizarro, Ramón A., Bellino, Martín G., Costa, Cristina S.

“…Activation of photocatalytic titania by ultraviolet-A (UVA) radiation has been proposed as a good approach for combating bacteria. Titania powder, in solution…”
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Exposure to low UVA doses increases KatA and KatB catalase activities, and confers cross-protection against subsequent oxidative injuries in Pseudomonas aeruginosa by Pezzoni, Magdalena, Tribelli, Paula M, Pizarro, Ramón A, López, Nancy I, Costa, Cristina S

“…Solar UVA radiation is one of the main environmental stress factors for Pseudomonas aeruginosa. Exposure to high UVA doses produces lethal effects by the…”
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Evaluation of Viable Cells in Pseudomonas aeruginosa Biofilmsby Colony Count and Live/Dead Staining by Pezzoni, Magdalena, Pizarro, Ramón A, Costa, Cristina S

“…is a human pathogen capable to form robust biofilms. biofilms represent a serious problem because of the adverse effects on human health and industry, from…”
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Role of the Pseudomonas quinolone signal (PQS) in sensitising Pseudomonas aeruginosa to UVA radiation by Pezzoni, Magdalena, Meichtry, Martín, Pizarro, Ramón A., Costa, Cristina S.

“…•PQS sensitises Pseudomonas aeruginosa exposed to UVA radiation.•Exposure of PQS to UVA radiation generates singlet oxygen and superoxide anion.•PQS could act…”
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Impact of inocula and operating conditions on the microbial community structure of two anammox reactors by Costa, Maria Cristina Monteiro S, Carvalho, Luciana, Leal, Cintia Dutra, Dias, Marcela França, Martins, Karoline L, Garcia, Guilherme Brugger, Mancuelo, Isabella Daldegan, Hipólito, Thais, MacConell, Erika F. Abreu, Okada, Dagoberto, Etchebehere, Claudia, Chernicharo, Carlos Augusto L, Calabria Araujo, Juliana

“…The microbial community structure of the biomass selected in two distinctly inoculated anaerobic oxidation of ammonium (anammox) reactors was investigated and…”
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