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Content with Investigacion Legionella .

Legionella

Desde su creación hasta la actualidad, La Unidad de Legionella tiene como principal función dar apoyo científico-técnico a la Administración General del Estado, a las Comunidades Autónomas y al Sistema Nacional de Salud en el campo de la prevención y control de la legionelosis, así como llevar a cabo investigaciones científicas en el contexto de la legionelosis. Además, la Unidad de Legionella también actúa como Laboratorio de Referencia de España frente al European Centre for Disease Prevention and Control (ECDC), siendo miembro de la red europea de vigilancia de la legionelosis, “European Legionnaires’ Disease Surveillance Network (ELDSNet). Finalmente, la unidad también realiza una actividad docente, participando en cursos de formación especializada, así como en Máster Universitarios.

 

Principales líneas de investigación

Vigilancia microbiológica

Búsqueda de marcadores moleculares con capacidad de predecir el riesgo de una instalación de provocar legionelosis. Factores de virulencia de Legionella spp.

Estudio de la capacidad formadora de biofilms de Legionella spp. Colonización y dispersión.

Búsqueda de marcadores fenotípicos capaces de discriminar especies del Género Legionella; grupos y subgrupos de Legionella pneumophila.

Diferentes estructuras de biofilms en función de la cepa formadora de Legionella pneumophila. En verde la biomasa bacteriana, en rojo el exopolisacárido de la matriz extracelular.

Apoyo al Sistema Nacional de Salud de la Unidad de Legionella

 

La Unidad de Legionella tambien desarrolla actividades con el fin de proporcionar asistencia al sistema nacional de salud a traves de la oferta disponible en la cartera de servicios del CNM, así como a través de programas de vigilancia microbiológica.

Research projects

Content with Investigacion Legionella .

1: Título del proyecto: Búsqueda de biomarcadores de patogenicidad en Legionella spp con interés predictivo de riesgo de infección.
Investigador principal: Fernando González Camacho
Entidad financiadora: ISCIII (AESI). Referencia:  MPY 341/22
Periodo: 01/01/2023 - 31/12/2025

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Off-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 DOI

Comparative 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 DOI

Relative 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).

PUBMED

Activity 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 DOI

Characterization 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 DOI

Diverse 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 DOI

Improvement 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 DOI

Predominance 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 DOI

Molecular 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 DOI

Epidemiological 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 DOI

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.

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 DOI

Identification 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 DOI

Sequence 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 DOI

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.

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 DOI

Bayesian 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 DOI

Alcazar-Fuoli L, Clavaud C, Lamarre C, Aimanianda V, Seidl-Seiboth V, Mellado E, Latgé JP. Functional analysis of the fungal/plant class chitinase family in Aspergillus fumigatus.

Alcazar-Fuoli L, Clavaud C, Lamarre C, Aimanianda V, Seidl-Seiboth V, Mellado E, Latgé JP. Functional analysis of the fungal/plant class chitinase family in Aspergillus fumigatus. Fungal Genet Biol. 2011 Apr;48(4):418-29. doi: 10.1016/j.fgb.2010.12.007. Epub 2010 Dec 22. PMID: 21184840.

PUBMED DOI

Impact of DARC rs12075 Variants on Liver Fibrosis Progression in Patients with Chronic Hepatitis C: A Retrospective Study.

Jiménez-Sousa MA (AC); Gómez-Moreno AZ; Pineda-Tenor D; et al. (1/9) Impact of DARC rs12075 Variants on Liver Fibrosis Progression in Patients with Chronic Hepatitis C: A Retrospective Study. Biomolecules 2019; 9(4).​

DBP rs16846876 and rs12512631 polymorphisms are associated with progression to AIDS naïve HIV-infected patients: a retrospective study.

Jiménez-Sousa MA (AC); Jiménez JL; Fernández-Rodríguez A; et al. (1/10). DBP rs16846876 and rs12512631 polymorphisms are associated with progression to AIDS naïve HIV-infected patients: a retrospective study. Journal of Biomedical Science. 2019; 23;26(1):83. doi: 10.1186/s12929-019-0577-y.

TRPM5 rs886277 Polymorphism Predicts Hepatic Fibrosis Progression in Non-Cirrhotic HCV-Infected Patients.Journal of Clinical Medicine.

Resino S; Fernández-Rodríguez A; Pineda-Tenor D; et al; Jiménez-Sousa MA. (11/11). 2021. TRPM5 rs886277 Polymorphism Predicts Hepatic Fibrosis Progression in Non-Cirrhotic HCV-Infected Patients.Journal of Clinical Medicine. 10-3, pp.483. ISSN 2077-0383. https://doi.org/10.3390/jcm10030483.

Plasma metabolomic fingerprint of advanced cirrhosis stages among HIV/HCV-coinfected and HCV-monoinfected patients

Salguero, Sergio; Rojo, David; Berenguer, Juan; et al; Jimenez-Sousa, Maria A. (AC) (15/15). 2020. Plasma metabolomic fingerprint of advanced cirrhosis stages among HIV/HCV-coinfected and HCV-monoinfected patients LIVER INTERNATIONAL. 40-9, pp.2215-2227. ISSN 1478-3223. https://doi.org/10.1111/liv.14580 3

Content with Investigacion Legionella .

List of staff

Additional Information

The Medical Entomology Laboratory has accumulated extensive experience in this field, especially in entomological field studies, biology of arthropods of medical interest, vector competence and vector control. Also, in the molecular detection of Leishmania infantum promastigotes in naturally parasitized phlebotomine sand flies, in the molecular identification of blood ingested by hematophagous arthropods and in the study of the immunomodulatory properties of proteins present in the saliva of phlebotomine sand flies and mosquitoes. Our laboratory is currently co-leading the studies of vectors and wild reservoirs of leishmaniasis in the leishmaniasis focus of Fuenlabrada, Madrid. In this sense, we have studied the role of asymptomatic individuals as reservoirs in the outbreak by xenodiagnosis. On the other hand, we have participated since 2007 in the Entomological Surveillance Program in Airports and Ports against Potential Vectors of Exotic Infectious Diseases, a program that is allowing to develop the expansion map in Spain of Aedes albopictus. In 2016-2017, we carried out surveillance of Ae. albopictus in the Community of Castilla-La Mancha. On the other hand, we conducted studies on the role of patients with post-kala-azar dermal leishmaniasis (PKDL) in the transmission of the parasite in Bangladesh and Sudan. In addition, we participate in research studying ticks transmitting Crimean-Congo hemorrhagic fever in Spain.

Currently, it maintains confidentiality agreements with several companies participating in the evaluation of molecules with activity against pathogens in vectors (GSK), in the development of vector traps using artificial intelligence algorithms (Irideon, Spain), and in the evaluation of repellents against phlebotomine sand flies (IRSEA, France).

The laboratory actively participates in outreach activities such as the Science Week or the European Researchers' Night, among others, making medical entomology science available to the general population.

The Medical Entomology Laboratory has accumulated extensive experience in this field, especially in entomological field studies, biology of arthropods of medical interest, vector competence and vector control. Also, in the molecular detection of Leishmania infantum promastigotes in naturally parasitized phlebotomine sand flies, in the molecular identification of blood ingested by hematophagous arthropods and in the study of the immunomodulatory properties of proteins present in the saliva of phlebotomine sand flies and mosquitoes. Our laboratory is currently co-leading the studies of vectors and wild reservoirs of leishmaniasis in the leishmaniasis focus of Fuenlabrada, Madrid. In this sense, we have studied the role of asymptomatic individuals as reservoirs in the outbreak by xenodiagnosis. On the other hand, we have participated since 2007 in the Entomological Surveillance Program in Airports and Ports against Potential Vectors of Exotic Infectious Diseases, a program that is allowing to develop the expansion map in Spain of Aedes albopictus. In 2016-2017, we carried out surveillance of Ae. albopictus in the Community of Castilla-La Mancha. On the other hand, we conducted studies on the role of patients with post-kala-azar dermal leishmaniasis (PKDL) in the transmission of the parasite in Bangladesh and Sudan. In addition, we participate in research studying ticks transmitting Crimean-Congo hemorrhagic fever in Spain.

Currently, it maintains confidentiality agreements with several companies participating in the evaluation of molecules with activity against pathogens in vectors (GSK), in the development of vector traps using artificial intelligence algorithms (Irideon, Spain), and in the evaluation of repellents against phlebotomine sand flies (IRSEA, France).

The laboratory actively participates in outreach activities such as the Science Week or the European Researchers' Night, among others, making medical entomology science available to the general population.

Content with Investigacion Legionella .