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Investigation
Pneumococcus
Research Lines
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Hepatitis
- 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.
- Evaluación de métodos diagnósticos de los VH. Colaboramos con empresas para estudios de sensibilidad y especificidad de equipos diagnósticos.
- Estudios de Seroprevalencia de los virus de las hepatitis.
- Epidemiología genómica de genomas completos de VHA, VHB, VHC, VHD y VHE en colaboración con el ECDC. Estudios de trazabilidad del VHE.
- 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.
- 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.
- b) VHC: resistencias a los antivirales de acción directa. Análisis molecular de subtipos poco frecuentes.
Research projects
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1. Proyecto CIBEREPS 2022. Microbiological and genomic investigation of hepatitis in children by metagenomic approach in case and control subjects (IP: Ana Avellón).
2023-2024. En colaboración con el Hospital San Joan de Deu de Barcelona.
2. MPY 501-19: Tracking hepatitis E virus infection by means of epidemiological research and whole genome sequencing. Project TrazHE. (IP: Ana Avellón). 2020-2024.
3. Proyecto CIBEREPS 2021 Metagenomic sequencing to identify viral aetiologies in undiagnosed paediatric cases of meningitis and encephalitis (IP: D. Tarragó). 2021-2022.
4. MPY 383/19 (PEJ2018-004446-A). Ayudas para la promoción de empleo joven e implantación de la garantía juvenil en I+D+I. análisis de la complejidad de secuencias de los virus de la hepatitis A, B, C; D y E (VHA, VHB, VHC, VHD y VHE) mediante técnicas de secuenciación masiva. (IP: Ana Avellón). 2020-2021.
5. MPY 1285/16 Movilidad "Salvador de Madariaga" programa estatal de promoción de talento y su empleabilidad. (IP: Ana Avellón). 2016.
Publications
Toll-like receptor signaling-deficient cells enhance antitumor activity of cell-based immunotherapy by increasing tumor homing
A. Morales-Molina, M.A. Rodríguez-Milla, S,. Gambera, T. Cejalvo, B. de Andrés M.L. Gaspar, J. Garcia-Castro. Cancer Res Commun 2023 Mar 1;3(3):347-360. eCollection 2023 Mar
PUBMED DOIImmune stress suppresses innate immune signaling in preleukemic precursor B-cells to provoke leukemia in predisposed mice
Isidro-Hernández M, Casado-García A, Oak N, Alemán-Arteaga S, Ruiz-Corzo B, Martínez-Cano J, Mayado A, G. Sánchez E, Blanco O, Gaspar ML, Orfao A, Alonso-López D, De las Rivas J, Riesco S, Prieto-Matos P, González-Murilo A, García Criado FJ, García Cenador MB, Ramírez-Orellana M, De Andrés B, Vicente-Dueñas C, Cobaleda C, Nichols KE, Sánchez-García I. Nat Commun 2023 Aug 24;14(1):5159.
PUBMED DOIRole of Toll-like receptor 4 in intravascular hemolisis-mediated injury
Vázquez-Carballo C, Herencia C, Guerrero-Hue M, García-Caballero C, Rayego-Mateos S, Morgado-Pascual JL, Opazo-Rios L, González-Guerrero C, Vallejo-Mudarra M, Cortegano I, Gaspar ML, de Andrés B, Egido J, Moreno JA. J Pathol. 2022 Nov; 258(3): 236–249.
PUBMED DOIAge-dependent nasal immune responses in non-hospitalized bronchiolitis children
Cortegano I, Rodríguez M, Hernángómez S, Arrabal A, Garcia-Vao C, Rodríguez J, Sandra Fernández S, Díaz J, de la Rosa B, Solís B, Arribas C, Garrido F, Zaballos A, Roa S, López V, Gaspar ML, de Andrés B. Front Immunol 2022 Dec 6:13:1011607.
PUBMED DOIToll-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.
PUBMED DOIThe TLR4-MyD88 Signaling Regulates Lung Monocyte Differentiation Pathways in Response to Streptococcus pneumoniae
Sánchez-Tarjuelo R, Cortegano I, Manosalva J, Rodríguez M, Ruiz C, Alía M, Prado MC, Cano EM, Ferrándiz MJ, de la Campa A, Gaspar ML, de Andrés B. Front Immunol 2020 Sep 16:11:2120.
PUBMED DOINrf2 plays a protective role against intravascular hemolysis-mediated acute kidney injury.
Rubio-Navarro A, Vázquez-Carballo C, Guerrero-Hue M, García-Caballero C, Herencia C, Gutierrez E, Yuste C, Sevillano A, Praga M, Egea J, Cannata P, Cortegano I, de Andrés B, Gaspar ML, Cadenas S, Michalska P, León R, Ortiz, A, Egido J, Moreno JA. Front Pharmacol. 2019; 10: 740.
PUBMED DOIPodocytes as new cellular targets of hemoglobin toxicity in massive intravascular hemolysis.
Rubio-Navarro A, Sanchez-Niño MD, Guerrero-Hue M, García-Caballero C, Gutiérrez E, Yuste C, Sevillano A, Praga M, Egea J, Román E, Cannata P, Ortega R, Cortegano I, de Andrés B, Gaspar ML, Cadenas S, Ortiz A, Egido J, Moreno JA. Podocytes as new cellular targets of hemoglobin toxicity in massive intravascular hemolysis. 2018. J.Pathol. 244(3):296-310.
PUBMED DOISpatially-restricted JAG1-Notch signaling in the human thymus provides permissive microenvironments for dendritic cell development.
Martín Gayo, E., González-García, S., García-León, M., Murcia-Ceballos, A., Alcain, J., García-Peydró, M., Allende, L., de Andrés, B., Gaspar, ML. and Toribio, ML. J.Exp.Med. (2017) 214:3361-3379
PUBMED DOIThe formation of titan cells in Cryptococcus neoformans depends on the mouse strain and correlates with induction of Th2-type responses
García-Barbazán, I., Trevijano-Contador, N., Rueda, C., de Andrés, B., Pérez-Tavárez, R., Herrero-Fernández, I., Gaspar ML., and Zaragoza, O. Cellular Microbiology (2015) 18:111-124
PUBMED DOIAdditional Information
The Pneumococcus Unit is in charge of two very important aspects related to pneumococcus infections, such as epidemiological surveillance and basic and translational research of diseases caused by this pathogen. Our unit contributes to the epidemiological surveillance of invasive pneumococcal disease (IPD), characterizing the serotypes and genotypes of invasive pneumococci circulating in Spain, as well as the evolution of antibiotic resistance in this pathogen.
Identification of culture-negative samples (CSF and pleural fluids) is performed using real-time PCR. Serotyping is performed using the Dot-blot and PCR-sequencing technique. Genotyping for the study of outbreaks and characterization of clones associated with hypervirulent and/or multiresistant strains is performed using the MLST technique and the analysis of complete genomes by massive sequencing. In addition, antibiotic susceptibility is determined following the EUCAST criteria.
Our unit belongs to the IBD-labnet network of the ECDC and annually notifies all cases of IPD to the ECDC and also to the IRIS (Invasive Respiratory Infection Surveillance) network. At the level of basic and translational research, our unit is responsible for studying and characterizing different molecular mechanisms of pathogenicity and protection related to pneumococcal infection. Among the main objectives are the molecular characterization of virulence factors, the study of different vaccine candidate proteins and determining the possible impact that tobacco smoke and the formation of biofilms have on the colonization of the respiratory tract.
The Pneumococcus Unit is in charge of two very important aspects related to pneumococcus infections, such as epidemiological surveillance and basic and translational research of diseases caused by this pathogen. Our unit contributes to the epidemiological surveillance of invasive pneumococcal disease (IPD), characterizing the serotypes and genotypes of invasive pneumococci circulating in Spain, as well as the evolution of antibiotic resistance in this pathogen.
Identification of culture-negative samples (CSF and pleural fluids) is performed using real-time PCR. Serotyping is performed using the Dot-blot and PCR-sequencing technique. Genotyping for the study of outbreaks and characterization of clones associated with hypervirulent and/or multiresistant strains is performed using the MLST technique and the analysis of complete genomes by massive sequencing. In addition, antibiotic susceptibility is determined following the EUCAST criteria.
Our unit belongs to the IBD-labnet network of the ECDC and annually notifies all cases of IPD to the ECDC and also to the IRIS (Invasive Respiratory Infection Surveillance) network. At the level of basic and translational research, our unit is responsible for studying and characterizing different molecular mechanisms of pathogenicity and protection related to pneumococcal infection. Among the main objectives are the molecular characterization of virulence factors, the study of different vaccine candidate proteins and determining the possible impact that tobacco smoke and the formation of biofilms have on the colonization of the respiratory tract.