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Investigación
Special Pathogens
Líneas de investigación
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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.
Publicaciones destacadas
Comparative Analysis of Aspergillus fumigatus Strains: The Reference Genome as a Matter of Concern.
Buitrago MJ, Martín-Gómez T. Timely Diagnosis of Histoplasmosis in Non-endemic Countries: A Laboratory Challenge. Front Microbiol. 2020 Mar 24; 11:467. doi: 10.3389/fmicb.2020.00467. eCollection 2020. PMID: 32269555.
PUBMED DOIIdentification of Novel Short C-Terminal Transcripts of Human SERPINA1 Gene.
Matamala N, Aggarwal N, Iadarola P, Fumagalli M, Gomez-Mariano G, Lara B, Martinez MT, Cuesta I, Stolk J, Janciauskiene S, Martinez-Delgado B. Identification of Novel Short C-Terminal Transcripts of Human SERPINA1 Gene. PLoS One. 2017 Jan 20;12(1):e0170533.
PUBMED DOIA case of respiratory toxigenic diphtheria: Contact tracing results and considerations following a 30-year disease-free interval, Catalonia, Spain, 2015.
Jané, M., Vidal, M.J., Camps, N., Campins, M., Martínez, A., Balcells, J., Martin-Gomez, M.T., Bassets, G., Herrera-Leon, S., Foguet, A., Maresma, M., Follia, N., Uriona, S., Pumarola, T. A case of respiratory toxigenic diphtheria: Contact tracing results and considerations following a 30-year disease-free interval, Catalonia, Spain, 2015. (2018) Eurosurveillance, 23 (13).
PUBMED DOIDevelopment of three multiplex PCR assays targeting the 21 most clinically relevant serogroups associated with Shiga toxin-producing E. coli infection in humans
Sánchez, S., Llorente, M.T., Echeita, M.A., Herrera-León, S. Development of three multiplex PCR assays targeting the 21 most clinically relevant serogroups associated with Shiga toxin-producing E. coli infection in humans (2015) PLoS ONE, 10 (1).
PUBMED DOIShiga toxin-producing Escherichia coli and atypical enteropathogenic E. coli infection in a Spanish household
Sánchez, S., Cenoz, M.G., Martín, C., Beristain, X., Llorente, M.T., Herrera-León, S. Cluster investigation of mixed O76:H19 Shiga toxin-producing Escherichia coli and atypical enteropathogenic E. coli infection in a Spanish household (2014) Epidemiology and Infection, 142 (5), pp. 1029-1033.
PUBMED DOIOff-label use of maraviroc in HIV-1-infected paediatric patients in clinical practice.
Palladino C, Navarro Gomez ML, Soler-Palacin P, Gonzalez-Tome MI, Jiménez de Ory S, Espiau M, Pérez-Hoyos S, León-Leal JA, Méndez M, Moreno-Pérez D, Fortuny C, uer A, Pocheville I, Moreno S, Briz V, on behalf of the CoRISpe Working Group. Off-label use of maraviroc in HIV-1-infected paediatric patients in clinical practice. AIDS 2015; 29-16, pp.2155-2159. (A; FI= 4,407; Q1 Infectious Disease).
PUBMED DOIComparative sensitivity of commercial tests for hepatitis E genotype 3 virus antibody detection.
Comparative sensitivity of commercial tests for hepatitis E genotype 3 virus antibody detection. Avellon A, Morago L, Garcia-Galera del Carmen M, Munoz M, Echevarría JM. J Med Virol. 2015 Nov;87(11):1934-9. Epub 2015 May 29.
PUBMED DOIRelative telomere length impact on mortality of COVID-19: sex differences.
Virseda-Berdices A, Concostrina-Martinez L, Martínez-González O, Blancas R, Resino S, Ryan P, De Juan C, Moreira-Escriche P, Martin-Vicente M, Brochado-Kith O, Blanca-López N, Jiménez-Sousa MA (‡,*), Fernández-Rodríguez A (‡). Relative telomere length impact on mortality of COVID-19: sex differences. J Med Virol 2023; 98 (1): e28368 (A; FI= 20.96; D1, Virology; JCR 2021).
PUBMEDActivity of host antimicrobials against multidrug resistant Acinetobacter baumannii acquiring colistin resistance through loss of lipopolysaccharide
García-Quintanilla, M., Pulido, M. R., Moreno-Martínez, P., Martín-Peña, R., López-Rojas, R., Pachón, J. and McConnell, M.J.* Activity of host antimicrobials against multidrug resistant Acinetobacter baumannii acquiring colistin resistance through loss of lipopolysaccharide. Antimicrobial Agents and Chemotherapy 2014. May;58(5):2972-5.
PUBMED DOICharacterization of broadly neutralizing antibody responses to HIV-1 in a cohort of long term non-progressors
Characterization of broadly neutralizing antibody responses to HIV-1 in a cohort of long term non-progressors. González N, McKee K, Lynch RM, Georgiev IS, Jimenez L, Grau E, Yuste E, Kwong PD, Mascola JR, Alcamí J. PLoS One. 2018;13:e0193773.
PUBMED DOIDiverse large HIV-1 non-subtype B clusters are spreading among men who have sex with men in Spain
Delgado E, Benito S, Montero V, Cuevas MT, Fernández-García A, Sánchez-Martínez M, García-Bodas E, Díez-Fuertes F, Gil H, Cañada J, Carrera C, Martínez-López J, Sintes M, Pérez-Álvarez L, Thomson MM; Spanish Group for the Study of New HIV Diagnoses. Diverse large HIV-1 non-subtype B clusters are spreading among men who have sex with men in Spain. Front Microbiol. 2019; 3;10:655.
PUBMED DOIImprovement of HIV-1 coreceptor tropism prediction by employing selected nucleotide positions of the env gene in a Bayesian network classifier.
Díez-Fuertes F, Delgado E, Vega Y, Fernández-García A, Cuevas MT, Pinilla M, García V, Pérez-Álvarez L, Thomson MM. Improvement of HIV-1 coreceptor tropism prediction by employing selected nucleotide positions of the env gene in a Bayesian network classifier. J Antimicrob Chemother. 2013; 68:1471-1485.
PUBMED DOIPredominance of CXCR4 tropism in HIV-1 CRF14_BG strains from newly diagnosed infections.
Pérez-Álvarez L, Delgado E, Vega Y, Montero V, Cuevas T, Fernández-García A, García-Riart B, Pérez-Castro S, Rodríguez-Real R, López-Álvarez MJ, Fernández-Rodríguez R, Lezaun MJ, Ordóñez P, Ramos C, Bereciartua E, Calleja S, Sánchez-García AM, Thomson MM. Predominance of CXCR4 tropism in HIV-1 CRF14_BG strains from newly diagnosed infections. J Antimicrob Chemother. 2014; 69:246-253.
PUBMED DOIMolecular epidemiology, phylogeny, and phylodynamics of CRF63_02A1, a recently originated HIV-1 circulating recombinant form spreading in Siberia.
Shcherbakova NS, Shalamova LA, Delgado E, Fernández-García A, Vega Y, Karpenko LI, Ilyichev AA, Sokolov YV, Shcherbakov DN, Pérez-Álvarez L, Thomson MM. Molecular epidemiology, phylogeny, and phylodynamics of CRF63_02A1, a recently originated HIV-1 circulating recombinant form spreading in Siberia. AIDS Res Hum Retroviruses. 2014; 30:912-919.
PUBMED DOIEpidemiological surveillance of HIV-1 transmitted drug resistance in Spain in 2004-2012: relevance of transmission clusters in the propagation of resistance mutations.
Vega Y, Delgado E, Fernández-García A, Cuevas MT, Thomson MM, Montero V, Sánchez M, Sánchez AM, Pérez-Álvarez L; Spanish Group for the Study of New HIV-1 Diagnoses in Galicia and Basque Country. Epidemiological surveillance of HIV-1 transmitted drug resistance in Spain in 2004-2012: relevance of transmission clusters in the propagation of resistance mutations. PLoS One. 2015; 10:e0125699.
PUBMED DOIPhylogeny and phylogeography of a recent HIV-1 subtype F outbreak among men who have sex with men in Spain deriving from a cluster with a wide geographic circulation in Western Europe.
Delgado E, Cuevas MT, Domínguez F, Vega Y, Cabello M, Fernández-García A, Pérez-Losada M, Castro MÁ, Montero V, Sánchez M, Mariño A, Álvarez H, Ordóñez P, Ocampo A, Miralles C, Pérez-Castro S, López-Álvarez MJ, Rodríguez R, Trigo M, Diz-Arén J, Hinojosa C, Bachiller P, Hernáez-Crespo S, Cisterna R, Garduño E, Pérez-Álvarez L, Thomson MM. Phylogeny and phylogeography of a recent HIV-1 subtype F outbreak among men who have sex with men in Spain deriving from a cluster with a wide geographic circulation in Western Europe. PLoS One. 2015; 10:e0143325.
PUBMED DOIIdentification of an HIV-1 BG intersubtype recombinant form (CRF73_BG), partially related to CRF14_BG, which Is circulating in Portugal and Spain.
Fernández-García A, Delgado E, Cuevas MT, Vega Y, Montero V, Sánchez M, Carrera C, López-Álvarez MJ, Miralles C, Pérez-Castro S, Cilla G, Hinojosa C, Pérez-Álvarez L, Thomson MM. Identification of an HIV-1 BG intersubtype recombinant form (CRF73_BG), partially related to CRF14_BG, which Is circulating in Portugal and Spain. PLoS One. 2016; 11:e0148549.
PUBMED DOISequence analysis of in vivo-expressed HIV-1 spliced RNAs reveals the usage of new and unusual splice sites by viruses of different subtypes
Vega Y, Delgado E, de la Barrera J, Carrera C, Zaballos Á, Cuesta I, Mariño A, Ocampo A, Miralles C, Pérez-Castro S, Álvarez H, López-Miragaya I, García-Bodas E, Díez-Fuertes F, Thomson MM. Sequence analysis of in vivo-expressed HIV-1 spliced RNAs reveals the usage of new and unusual splice sites by viruses of different subtypes. PLoS One. 2016; 11:e0158525.
PUBMED DOIHIV-1 genetic diversity in recently diagnosed infections in Moscow: predominance of AFSU, frequent branching in clusters, and circulation of the Iberian subtype G variant.
Karamov E, Epremyan K, Siniavin A, Zhernov Y, Cuevas MT, Delgado E, Sánchez-Martínez M, Carrera C, Kornilaeva G, Turgiev A, Bacqué J, Pérez-Álvarez L, Thomson MM. HIV-1 genetic diversity in recently diagnosed infections in Moscow: predominance of AFSU, frequent branching in clusters, and circulation of the Iberian subtype G variant. AIDS Res Hum Retroviruses. 2018; 34:629-634.
PUBMED DOIBayesian phylogeographic analyses clarify the origin of the HIV-1 subtype A variant circulating in former Soviet Union's countries.
Díez-Fuertes F, Cabello M, Thomson MM. Bayesian phylogeographic analyses clarify the origin of the HIV-1 subtype A variant circulating in former Soviet Union's countries. Infect Genet Evol. 2015; 33:197-205.
PUBMED DOIInformación 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.