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Líneas de investigación

Content with Investigacion Hepatitis .

Hepatitis

  1. Diseño de métodos diagnósticos para el estudio de los virus de las hepatitis (VH) A, B, C, D, E: Diseñamos sistemas de PCR para su detección y caracterización.
  2. Evaluación de métodos diagnósticos de los VH. Colaboramos con empresas para estudios de sensibilidad y especificidad de equipos diagnósticos.
  3.  Estudios de Seroprevalencia de los virus de las hepatitis.
  4.  Epidemiología genómica de genomas completos de VHA, VHB, VHC, VHD y VHE en colaboración con el ECDC. Estudios de trazabilidad del VHE.
  5. Caracterización molecular de virus de las hepatitis mediante secuenciación masiva:               a) VHB: mutantes de escape HBsAg (prevalencia y efectos en la detección del HBsAg). Estudio de mutaciones en epítopos de estimulación inmune y mutaciones asociadas a evolución clínica desfavorable.
    1. b) VHC: resistencias a los antivirales de acción directa. Análisis molecular de subtipos poco frecuentes.
      c) Estudios filogenéticos del VHD.
       d) Análisis genómico del VHE.
       e) Investigación etiológica de hepatitis no filiadas mediante estudios de metagenómica.

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Publicaciones destacadas

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Invasive Streptococcus pyogenes disease in Spain: a microbiological and epidemiological study covering the period 2007-2019

Villalón P, Sáez-Nieto JA, Rubio-López V, Medina-Pascual MJ, Garrido N, Carrasco G, Pino-Rosa S, Valdezate S. (2021). Invasive Streptococcus pyogenes disease in Spain: a microbiological and epidemiological study covering the period 2007-2019. Eur J Clin Microbiol Infect Dis. 2021 Nov;40(11):2295-2303

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Characterization of Trichuris muris secreted proteins and extracellular vesicles provides new insights into host-parasite communication.

Eichenberger RM, Talukder MH, Field MA, Wangchuk P, Giacomin P, Loukas A, Sotillo J. Characterization of Trichuris muris secreted proteins and extracellular vesicles provides new insights into host-parasite communication. J Extracell Vesicles. 2018 Jan 21;7(1):1428004.

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Genome-wide proximity between RNA polymerase and DNA topoisomerase I supports transcription in Streptococcus pneumoniae

Ferrándiz M-J, Hernández P, de la Campa AG. PLoS Genet. 2021; 17:e1009542.

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TREM1 regulates antifungal immune responses in invasive pulmonary aspergillosis

Bernal-Martinez L, Gonçalves S, de Andres B, Cunha C, Gonzalez Jimenez I, Lagrou K, Mellado E, Gaspar ML, Maertens J, Carvalho A, and Alcazar-Fuoli L. Virulence 2021 Dec;12(1):570-583.

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Guiding the humoral response against HIV-1 toward a MPER adjacent region by immunization with a VLP-formulated antibody-selected envelope variant

Beltran-Pavez C, Ferreira CB, Merino-Mansilla A, Fabra-Garcia A, Casadella M, Noguera-Julian M, Paredes R, Olvera A, Haro I, Brander C, Garcia F, Gatell JM, Yuste E, Sanchez-Merino V; PLoS One. 2018 Dec 19;13(12):e0208345

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The role of methionine synthases in fungal metabolism and virulence

Scott J and Amich J. Essays Biochem (2023) 67 (5): 853-863.

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Global Meningococcal Initiative: Insights on antibiotic resistance, control strategies and advocacy efforts in Western Europe

Borrow R, Campbell H, Caugant DA, Cherkaoui A, Claus H, Deghmane AE, Dinleyici EC, Harrison LH, Hausdorff WP, Bajanca-Lavado P, Levy C, Mattheus W, Mikula-Pratschke C, Mölling P, Sáfadi MA, Smith V, van Sorge NM, Stefanelli P, Taha MK, Toropainen M, Tzanakaki G, Vázquez J. . J Infect. 2024; 89(6): 106335

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Dissociation of actin polymerization and lipid raft accumulation by ligation of the Inducible Costimulator (ICOS, CD278)

6. Y. Acosta, G. Ojeda, M. P. Zafra, I. Seren-Bernardone, A. Sánchez, U. Dianzani, P. Portolés y J. M. Rojo. Dissociation of actin polymerization and lipid raft accumulation by ligation of the Inducible Costimulator (ICOS, CD278). Inmunología, 2012, 31 (1): 4-12.

DOI

Genetic Characterization of Brucella spp.: Whole Genome Sequencing-Based Approach for the Determination of Multiple Locus Variable Number Tandem Repeat Profiles

Pelerito A, Nunes A, Grilo T, Isidro J, Silva C, Ferreira AC, Valdezate S, Núncio MS, Georgi E, Gomes JP. (2021) Genetic Characterization of Brucella spp.: Whole Genome Sequencing-Based Approach for the Determination of Multiple Locus Variable Number Tandem Repeat Profiles. 2021. Front Microbiol. 12;12:740068

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Evaluation of onchocerciasis seroprevalence in Bioko Island (Equatorial Guinea) after years of disease control programmes.

Hernández-González A, Moya L, Perteguer MJ, Herrador Z, Nguema R, Nguema J, Aparicio P, Benito A, Gárate T. Evaluation of onchocerciasis seroprevalence in Bioko Island (Equatorial Guinea) after years of disease control programmes. Parasit Vectors. 2016 Sep 20;9(1):509.

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A Small Non-Coding RNA Modulates Expression of Pilus-1 Type in Streptococcus pneumoniae

Acebo P, Herranz C, Bernal-Espenberger L, Gómez-Sanz A, Terron MC, Luque D and Amblar M. Microorganisms. 2021; 9:1883.

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Toll-like receptors in acute kidney injury

Vázquez-Carballo C, Guerrero-Hue M, García Caballero C, Rayego-Mateos S, Opazo-Rios L, Morgado-Pascual JL, Herencia-Bellido C, Vallejo-Mudarra M, Cortegano I, Gaspar ML, de Andrés B, Egido J, Moreno-Gutiérrez JA. Int J Mol Sci. 2021 Jan; 22(2): 816.

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CARB-ES-19 Multicenter Study of Carbapenemase-Producing Klebsiella pneumoniae and Escherichia coli From All Spanish Provinces Reveals Interregional Spread of High-Risk Clones Such as ST307/OXA-48 and ST512/KPC-3.

6. CARB-ES-19 Multicenter Study of Carbapenemase-Producing Klebsiella pneumoniae and Escherichia coli From All Spanish Provinces Reveals Interregional Spread of High-Risk Clones Such as ST307/OXA-48 and ST512/KPC-3. Autores: Cañada-García JE, Moure Z, Sola-Campoy PJ, Delgado-Valverde M, Cano ME, Gijón D, González M, Gracia-Ahufinger I, Larrosa N, Mulet X, Pitart C, Rivera A, Bou G, Calvo J, Cantón R, González-López JJ, Martínez-Martínez L, Navarro F, Oliver A, Palacios-Baena ZR, Pascual Á, Ruiz-Carrascoso G, Vila J, Aracil B, Pérez-Vázquez M, Oteo-Iglesias J; GEMARA/GEIRAS-SEIMC/REIPI CARB-ES-19 Study Group. Revista: Front Microbiol. 2022 Jun 30;13:918362.

DOI

Detection of Broadly Neutralizing Activity within the First Months of HIV-1 Infection

Sanchez-Merino V, Fabra-Garcia A, Gonzalez N, Nicolas D, Merino-Mansilla A, Manzardo C, Ambrosioni J, Schultz A, Meyerhans A, Mascola JR, Gatell JM, Alcami J, Miro JM, Yuste E; J Virol. 2016 May 12;90(11):5231-5245

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Potential implication of azole persistence in the treatment failure of two haematological patients infected with Aspergillus fumigatus

Peláez-García de la Rasilla T, Mato-López A, Pablos-Puertas CE, González-Huerta AJ, Gómez-López A, Mellado E, Amich J. Journal of Fungi, 2023 Jul 30;9(8):805.

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Meningococcal disease in the Middle East: A report from the Global Meningococcal Initiative

Al-Abri SS, Abuhasan MY, Albayat SSA, Bai X, Bastaki H, Borrow R, Caugant DA, Dbaibo G, Deghmane AE, Dinleyici EC, Ghuneim N, Sheek-Hussein M, Lucidarme J, Leng S, Koliou MG, Sáfadi MAP, Salman JA, Al-Sanouri T, Smith V, Taha MK, Vázquez J, Wright C, Yezli S. J Infect. 2024; 88(2):71-76.

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Complement regulatory protein Crry/p65 costimulation expands natural Treg cells with enhanced suppressive properties in proteoglycan-induced arthritis.

7. Ojeda G., Pini E., Eguiluz C., Montes-Casado M., Broere F., van Eden W., Rojo J.M., and Portolés P. Complement regulatory protein Crry/p65 costimulation expands natural Treg cells with enhanced suppressive properties in proteoglycan-induced arthritis. Arthritis Rheum. 2011 Jun;63(6):1562-72.

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Saezia sanguinis gen. nov., sp. nov., a Betaproteobacteria member of order Burkholderiales, isolated from human blood

Medina-Pascual MJ, Monzón S, Villalón P, Cuesta I, González-Romo F, Valdezate S. (2020). Saezia sanguinis gen. nov., sp. nov., a Betaproteobacteria member of order Burkholderiales, isolated from human blood. Int J Syst Evol Microbiol.70:2016-25.

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Changes in protein expression after treatment with Ancylostoma caninum excretory/secretory products in a mouse model of colitis.

Sotillo J, Ferreira I, Potriquet J, Laha T, Navarro S, Loukas A, Mulvenna J. Changes in protein expression after treatment with Ancylostoma caninum excretory/secretory products in a mouse model of colitis. Sci Rep. 2017 Feb 13;7:41883.

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Reactive oxygen species production is a major factor directing the post-antibiotic effect of fluoroquinolones in Streptococcus pneumoniae

García MT, Valenzuela MV, Ferrándiz MJ, de la Campa AG. Antimicrob Agents Chemother. 2019; 63:e00737-19.

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Content with Investigacion Hepatitis .

List of staff

Información adicional

1.- The study of non-gastrointestinal zoonoses, some of them transmitted by vectors and/or emerging, aims to: 

  • The development and validation of new diagnostic and genotyping techniques represent important scientific-technical support to the National Health System, acting as a reference laboratory. 
  • Research on the Molecular Epidemiology of Coxiella burnetii studies the circulating genotypes and their association with the different clinical presentations of Q fever. 
  • Discovery of new pathogens: especially relevant in the case of Francisella with the description of F. hispaniensis, as well as taxonomically unknown variants of Bartonella, Borrelia and Rickettsia, found in reservoirs, vectors and clinical samples. 
  • Surveillance in nature analyzes kinetics, transmission cycles and reservoirs. 

• Genotyping techniques allow traceability studies to be carried out in the case of natural outbreaks or intentional release. • Method accreditation: ISO15189 standard (clinical samples), ISO17025 (environmental). 

2.- The study of bacteria with potential use in bioterrorism through participation in European projects (Joint Actions: QUANDHIP, EMERGE, SHARP) allows us to respond appropriately to possible health alert situations. An important methodological development has been carried out for the detection of these agents and a Rapid Response System has been implemented.

Content with Investigacion Hepatitis .