Listar por autor UPNA "Lasa Uzcudun, Íñigo"

Mostrando ítems 1-20 de 73

    • Adenosine diphosphate sugar pyrophosphatase prevents glycogen biosynthesis in Escherichia coli 

      Moreno Bruna, Beatriz Upna; Baroja Fernández, Edurne Upna Orcid; Muñoz Pérez, Francisco José Upna; Bastarrica Berasategui, Ainara Upna; Zandueta Criado, Aitor Upna; Rodríguez López, Milagros Upna; Lasa Uzcudun, Íñigo Upna Orcid; Akazawa, Takashi; Pozueta Romero, Javier Upna Orcid (National Academy of Sciences, 2001)   Artículo / Artikulua  OpenAccess
      An adenosine diphosphate sugar pyrophosphatase (ASPPase, EC 3.6.1.21) has been characterized by using Escherichia coli. This enzyme, whose activities in the cell are inversely correlated with the intracellular glycogen ...

    • Amyloid structures as biofilm matrix scaffolds 

      Taglialegna, Agustina Upna; Lasa Uzcudun, Íñigo Upna Orcid; Valle Turrillas, Jaione Upna Orcid (American Society for Microbiology, 2016)   Artículo / Artikulua  OpenAccess
      Recent insights into bacterial biofilm matrix structures have induced a paradigm shift toward the recognition of amyloid fibers as common building block structures that confer stability to the exopolysaccharide matrix. ...

    • Analysis of the association between polymorphisms in intergenic regions of Staphylococcus aureus genes involved in biofilm formation and periprosthetic joint infections 

      Morales Laverde, Liliana Andrea (2022)   Tesis doctoral / Doktoretza tesia  OpenAccess
      In this thesis, we have focused on studying variants found in IGRs adjacent to the most important genes involved in S. aureus biofilm formation; the icaADBCR locus, and the genes encoding the family of surface adhesins. ...

    • Antibiofilm activity of flavonoids on staphylococcal biofilms through targeting BAP amyloids 

      Matilla Cuenca, Leticia Upna Orcid; Gil Puig, Carmen Upna Orcid; Cuesta Ferre, Sergio; Rapún Araiz, Beatriz Upna Orcid; Mira, Alex; Lasa Uzcudun, Íñigo Upna Orcid; Valle Turrillas, Jaione Upna Orcid; Ziemité, Miglé (Nature Research, 2020)   Artículo / Artikulua  OpenAccess
      The opportunistic pathogen Staphylococcus aureus is responsible for causing infections related to indwelling medical devices, where this pathogen is able to attach and form biofilms. The intrinsic properties given by the ...

    • B regulates IS256-mediated Staphylococcus aureus biofilm phenotypic variation 

      Valle Turrillas, Jaione Upna Orcid; Vergara Irigaray, Marta Upna; Merino, Nekane Upna; Penadés, José R.; Lasa Uzcudun, Íñigo Upna Orcid (American Society for Microbiology, 2007)   Artículo / Artikulua  OpenAccess
      Biofilm formation in Staphylococcus aureus is subject to phase variation, and biofilm-negative derivatives emerge sporadically from a biofilm-positive bacterial population. To date, the only known mechanism for generating ...

    • Bap, a biofilm matrix protein of Staphylococcus aureus prevents cellular internalization through binding to GP96 host receptor 

      Valle Turrillas, Jaione Upna Orcid; Latasa Osta, Cristina Upna; Gil Puig, Carmen Upna Orcid; Toledo Arana, Alejandro Upna Orcid; Solano Goñi, Cristina Upna Orcid; Penadés, José R.; Lasa Uzcudun, Íñigo Upna Orcid (Public Library of Science, 2012)   Artículo / Artikulua  OpenAccess
      The biofilm matrix, composed of exopolysaccharides, proteins, nucleic acids and lipids, plays a well-known role as a defence structure, protecting bacteria from the host immune system and antimicrobial therapy. However, ...

    • Bap, a Staphylococcus aureus surface protein involved in biofilm formation 

      Cucarella, Carme; Solano Goñi, Cristina Upna Orcid; Valle Turrillas, Jaione Upna Orcid; Amorena Zabalza, Beatriz Upna; Lasa Uzcudun, Íñigo Upna Orcid; Penadés, José R. (American Society for Microbiology, 2001)   Artículo / Artikulua  OpenAccess
      Identification of new genes involved in biofilm formation is needed to understand the molecular basis of strain variation and the pathogenic mechanisms implicated in chronic staphylococcal infections. A biofilm-producing ...

    • Base pairing interaction between 5′- and 3′-UTRs controls icaR mRNA translation in Staphylococcus aureus 

      Ruiz de los Mozos Aliaga, Igor Upna; Vergara Irigaray, Marta Upna; Segura, Víctor; Villanueva San Martín, Maite Upna Orcid; Bitarte, Nerea Upna; Saramago, Margarida; Domingues, Susana; Arraiano, Cecilia M.; Fechter, Pierre; Romby, Pascale; Valle Turrillas, Jaione Upna Orcid; Solano Goñi, Cristina Upna Orcid; Lasa Uzcudun, Íñigo Upna Orcid; Toledo Arana, Alejandro Upna Orcid (Public Library of Science, 2013)   Artículo / Artikulua  OpenAccess
      The presence of regulatory sequences in the 39 untranslated region (39-UTR) of eukaryotic mRNAs controlling RNA stability and translation efficiency is widely recognized. In contrast, the relevance of 39-UTRs in bacterial ...

    • Beta-lactam antibiotics induce the SOS response and horizontal transfer of virulence factors in Staphylococcus aureus 

      Maiques, Elisa; Ubeda, Carles; Campoy Sánchez, Susana; Salvador, Noelia; Lasa Uzcudun, Íñigo Upna Orcid; Novick, Richard P.; Barbé, Jordi; Penadés, José R. (American Society for Microbiology, 2006)   Artículo / Artikulua  OpenAccess
      Antibiotics that interfere with DNA replication and cell viability activate the SOS response. In Staphylococcus aureus, the antibiotic-induced SOS response promotes replication and high-frequency horizontal transfer ...

    • Biofilm dispersion and quorum sensing 

      Solano Goñi, Cristina Upna Orcid; Echeverz Sarasúa, Maite Upna Orcid; Lasa Uzcudun, Íñigo Upna Orcid (Elsevier, 2014)   Artículo / Artikulua  OpenAccess
      Biofilm development and quorum sensing are closely interconnected processes. Biofilm formation is a cooperative group behaviour that involves bacterial populations living embedded in a self produced extracellular matrix. ...

    • Biofilm matrix exoproteins induce a protective immune response against Staphylococcus aureus biofilm infection 

      Gil Puig, Carmen Upna Orcid; Solano Goñi, Cristina Upna Orcid; Burgui Erice, Saioa Upna Orcid; Latasa Osta, Cristina Upna; García Martínez, Begoña Upna Orcid; Toledo Arana, Alejandro Upna Orcid; Lasa Uzcudun, Íñigo Upna Orcid; Valle Turrillas, Jaione Upna Orcid (American Society for Microbiology, 2014)   Artículo / Artikulua  OpenAccess
      The Staphylococcus aureus biofilm mode of growth is associated with several chronic infections that are very difficult to treat due to the recalcitrant nature of biofilms to clearance by antimicrobials. Accordingly, there ...

    • Biofilm properties in relation to treatment outcome in patients with first-time periprosthetic hip or knee joint infection 

      Svensson Malchau, Karin; Tillander, Jonatan; Zaborowska, Magdalena; Hoffman, Maria; Lasa Uzcudun, Íñigo Upna Orcid; Thomsen, Peter; Malchau, Henrik; Rolfson, Ola; Trobos, Margarita (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      Background: periprosthetic joint infections (PJI) are challenging complications following arthroplasty. Staphylococci are a frequent cause of PJI and known biofilm producers. Biofilm formation decreases antimicrobial ...

    • Biofilm switch and immune response determinants at early stages of infection 

      Valle Turrillas, Jaione Upna Orcid; Solano Goñi, Cristina Upna Orcid; García Martínez, Begoña Upna Orcid; Toledo Arana, Alejandro Upna Orcid; Lasa Uzcudun, Íñigo Upna Orcid (Elsevier (Cell Press), 2013)   Artículo / Artikulua  OpenAccess
      Biofilm development is recognized as a major virulence factor underlying most chronic bacterial infections. When a biofilm community is established, planktonic cells growing in the surroundings of a tissue switch to a ...

    • The biofilm-associated surface protein Esp of Enterococcus faecalis forms amyloid-like fibers 

      Taglialegna, Agustina Upna; Matilla Cuenca, Leticia Upna Orcid; Dorado Morales, Pedro Upna Orcid; Navarro, Susanna; Ventura, Salvador; Garnett, James A.; Lasa Uzcudun, Íñigo Upna Orcid; Valle Turrillas, Jaione Upna Orcid (Nature ResearchNanyang Technological University (Singapur), 2020)   Artículo / Artikulua  OpenAccess
      Functional amyloids are considered as common building block structures of the biofilm matrix in different bacteria. In previous work, we have shown that the staphylococcal surface protein Bap, a member of the Biofilm-Associated ...

    • Calcium inhibits bap-dependent multicellular behavior in Staphylococcus aureus 

      Arrizubieta Balerdi, María Jesús Upna; Toledo Arana, Alejandro Upna Orcid; Amorena Zabalza, Beatriz Upna; Penadés, José R.; Lasa Uzcudun, Íñigo Upna Orcid (American Society for Microbiology, 2004)   Artículo / Artikulua  OpenAccess
      Bap (biofilm-associated protein) is a 254-kDa staphylococcal surface protein implicated in formation of biofilms by staphylococci isolated from chronic mastitis infections. The presence of potential EF-hand motifs in the ...

    • Caracterización del sistema sensorial de dos componentes de Staphylococcus aureus 

      Rapún Araiz, Beatriz Upna Orcid (2020)   Tesis doctoral / Doktoretza tesia  OpenAccess
      En este trabajo de tesis hemos evaluado dos aproximaciones diferentes dedicadas a la búsqueda de fármacos que tengan como diana de acción los TCSs. Por un lado, dentro del proyecto 'Nuevas estrategias para el control de ...

    • Cloning, nucleotide sequencing, and analysis of the AcrAB-TolC efflux pump of enterobacter cloacae and determination of its involvement in antibiotic resistance in a clinical isolate 

      Pérez, Astrid; Canle, Delia; Latasa Osta, Cristina Upna; Poza, Margarita; Beceiro, Alejandro; Tomás, María del Mar; Fernández, Ana; Mallo, Susana; Pérez, Sonia; Molina, Francisca; Villanueva González, Rosa; Lasa Uzcudun, Íñigo Upna Orcid; Bou, Germán (American Society for Microbiology, 2007)   Artículo / Artikulua  OpenAccess
      Enterobacter cloacae is an emerging clinical pathogen that may be responsible for nosocomial infections. Management of these infections is often difficult, owing to the high frequency of strains that are resistant to ...

    • Comparative and functional analysis of 3’ untranslated regions in Staphylococcus species 

      Menéndez Gil, Pilar (2020)   Tesis doctoral / Doktoretza tesia  OpenAccess
      Una molécula de RNA mensajero (mRNA) está compuesta por una región codificante (CDS) flanqueada por dos regiones no traducidas (UTRs), la 5’UTR y la 3’UTR, respectivamente. En eucariotas, las 3’UTRs son elementos claves ...

    • Conditional mutation of an essential putative glycoprotease eliminates autolysis in Staphylococcus aureus 

      Zheng, L.; Yu, C.; Bayles, K.; Lasa Uzcudun, Íñigo Upna Orcid; Ji, Y. (American Society for Microbiology, 2007)   Artículo / Artikulua  OpenAccess
      Our previous studies demonstrated that a putative Staphylococcus aureus glycoprotease (Gcp) is essential for bacterial survival, indicating that Gcp may be a novel target for developing antibacterial agents. However, the ...

    • Coordinated cyclic-di-GMP repression of salmonella motility through YcgR and cellulose 

      Zorraquino Salvo, Violeta; García Martínez, Begoña Upna Orcid; Latasa Osta, Cristina Upna; Echeverz Sarasúa, Maite Upna Orcid; Toledo Arana, Alejandro Upna Orcid; Valle Turrillas, Jaione Upna Orcid; Lasa Uzcudun, Íñigo Upna Orcid; Solano Goñi, Cristina Upna Orcid (American Society for Microbiology, 2013)   Artículo / Artikulua  OpenAccess
      Cyclic di-GMP (c-di-GMP) is a secondary messenger that controls a variety of cellular processes, including the switch between a biofilm and a planktonic bacterial lifestyle. This nucleotide binds to cellular effectors in ...
      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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