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Pneumococcus

Líneas de investigación

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Neumococos

Vigilancia epidemiológica de los serotipos y genotipos que causan enfermedad neumocócica invasiva (ENI) en España. Caracterización molecular de factores de virulencia de neumococo. Identificación y caracterización de proteínas de neumococo candidatas a vacuna. Evaluación de mecanismos de evasión de la respuesta inmune en Streptococcus pneumoniae. Impacto de los biofilms bacterianos en la persistencia del tracto respiratorio. Mecanismos de cronicidad de aislados clínicos de neumococo en pacientes con enfermedad pulmonar obstructiva crónica.

Proyectos de investigación

Content with Investigacion Neumococos .

1: Título del proyecto: Desarrollo de enzibióticos para combatir infecciones en pacientes con fibrosis quística provocadas por los patógenos Pseudomonas aeruginosa y Staphylococcus aureus: CF-TREAT

Referencia: CPP2022-009574 / MPY 375/23

Agencia Financiadora: Agencia Estatal de Investigación. MICINN.

Fecha Inicio:    01/12/2023
Fecha Fin:    30/11/2026
Financiación: 238.938 Euros
Investigadores principales: Roberto Díez Martínez, José E. Yuste Lobo y Pilar García Suárez

 

2: Título del proyecto: Desarrollo de enzibióticos para combatir infecciones humanas producidas por Enterococcus faecium resistente a vancomicina (ANTI‐VRE).
Ayuda CPP2021-009054 financiada por Ministerio de Ciencia e Innovación

Investigadores principales: Roberto Díez Martínez, Jose Yuste Lobo y Mirian Domenech

Periodo: 18/11/2022 - 17/11/2025

Cuantía total: 231.455 €

3: Título del proyecto: Mecanismos de virulencia en patógenos respiratorios.
Entidad financiadora: Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación (Convocatoria «Proyectos I+D+I» 2020 - Modalidades «Retos Investigación» y «Generación de Conocimiento»). Referencia: PID2020-119298RB-I00

Investigador principal: Jose Yuste Lobo

Periodo: 01/09/2021 - 30/08/2024

Cuantía total: 121.000 €

4: Título del proyecto: Efectividad de la vacuna antineumocócica conjugada 13-valente frente a la hospitalización por neumonía adquirida en la comunidad en adultos de 60 años o mayores, mediante un estudio de casos y controles modificado. Estudio CIBELES.

Investigadores principales: Jose Yuste Lobo y Ángel Gil de Miguel
Entidad financiadora: PFIZER. Referencia: MVP 249/20
Periodo: 23/02/2021 - 22/02/2025
Cuantía total: 168.000 €

5: Título del proyecto: Evolution of Invasive Pneumococcal Disease in Spain with special focus on the pathogenesis of serotypes 3, 8, 11A, 19A, 22F and 33F. Investigadores principales: Jose Yuste Lobo y Mirian Domenech.
Entidad financiadora: Merck Sharp & Dohme USA. Referencia: MVP 132/21
Período: 16/06/2021 - 15/12/2023
Cuantía total: 157.448€

6: Título del proyecto: Mecanismos de patogenicidad y protección en bacterias Gram-positivas causantes de enfermedad respiratoria y bacteriemia
Investigador principal: Jose Yuste Lobo
Entidad financiadora: MINECO. Referencia: SAF2017-83388-R
Periodo: 31/12/2017 - 30/06/2021
Cuantía total: 145.200 €

7: Título del proyecto: Characterization of susceptibility to cefditoren investigating penicillin resistant clinical isolates of Streptococcus pneumoniae.
Investigadores: Jose Yuste Lobo y Mirian Domenech Lucas
Entidad financiadora: Tedec Meiji Farma, S.A. Referencia: MVP 119/20
Periodo: 11/07/2020 – 10-07-2022
Cuantía total: 76.517 €

8: Título del proyecto: Impact of clinical isolates of serotypes 22F and 33F in the epidemiology and pathogenesis of Streptococcus pneumoniae.
Investigador principal: Jose Yuste Lobo
Entidad financiadora: Merck Sharp & Dohme España, S.A. Referencia: MVE 213/18
Periodo: 10/05/2018 - 30/05/2021
Cuantía total: 157.604 €

Publicaciones destacadas

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The balance between gyrase and topoisomerase I activities determines levels of supercoiling, nucleoid compaction, and viability in bacteria

García-López M, Megias D, Ferrándiz MJ, de la Campa AG. Front Microbiol. 2023; 11;1094692.

PUBMED DOI

The Association of HIV-1 Neutralization in Aviremic Children and Adults with Time to ART Initiation and CD4+/CD8+ Ratios

Sanchez-Merino V, Martin-Serrano M, Beltran M, Lazaro-Martin B, Cervantes E, Oltra M, Sainz T, Garcia F, Navarro ML, Yuste E; Vaccines (Basel). 2023 Dec 20;12(1):8;

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The sulfur-related metabolic status of Aspergillus fumigatus during infection reveals cytosolic serine hydroxymethyltransferase as a promising antifungal target

Alharthi R, Sueiro-Olivares M, Storer I, Bin Shuraym H, Scott J, Al-Shidhani R, Fortune-Grant R, Bignell E, Tabernero L, Bromley M and Amich J. 2025. Virulence, 16(1):2449075

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Horizontal gene transmission of the cfr gene to MRSA and Enterococcus: role of Staphylococcus epidermidis as a reservoir and alternative pathway for the spread of linezolid resistance.

Horizontal gene transmission of the cfr gene to MRSA and Enterococcus: role of Staphylococcus epidermidis as a reservoir and alternative pathway for the spread of linezolid resistance. Cafini F, Nguyen le TT, Higashide M, Román F, Prieto J, Morikawa K. J Antimicrob Chemother. 2016 Mar;71(3):587-92.

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Focusing on Gordonia Infections: Distribution, Antimicrobial Susceptibilities and Phylogeny

Pino-Rosa S, Medina-Pascual MJ, Carrasco G, Garrido N, Villalón P, Valiente M, Valdezate S. (2023). Focusing on Gordonia Infections: Distribution, Antimicrobial Susceptibilities and Phylogeny. Antibiotics (Basel). 26;12(11):1568

PUBMED DOI

Antibody responses to chimeric peptides derived from parasite antigens in mice and other animal species.

Orbegozo-Medina RA, Martínez-Sernández V, Folgueira I, Mezo M, González-Warleta M, Perteguer MJ, Romarís F, Leiro JM, Ubeira FM. Antibody responses to chimeric peptides derived from parasite antigens in mice and other animal species. Mol Immunol. 2018 Dec 17;106:1-11.

PUBMED DOI

Suppression of CD4+ T lymphocyte activation in vitro and experimental encephalomyelitis in vivo by the phosphatidyl inositol 3-kinase inhibitor PIK-75.

3. Acosta YY, Montes-Casado M, Aragoneses-Fenoll L, Dianzani U, Portoles P, Rojo JM. Suppression of CD4+ T lymphocyte activation in vitro and experimental encephalomyelitis in vivo by the phosphatidyl inositol 3-kinase inhibitor PIK-75. Int. J. Immunopathol. Pharmacol. 2014 Jan-Mar;27(1):53-67.

PUBMED DOI

Role 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 DOI

Content with Investigacion Neumococos .

List of staff

Información adicional

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.

Content with Investigacion Neumococos .

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