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Pneumococcus

Research Lines

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.

Research projects

Content with Investigacion Hepatitis .

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

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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.

PUBMED DOI

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.

PUBMED DOI

Aspergillus fumigatus can exhibit persistence to the fungicidal drug voriconazole

Valero C., Á Mato-López, I J. Donaldson, A. Roldán, H. Chown, N. Van-Rhijn, S. Gago, T. Furukawa, A. Mogorovsky, R. Ben Ami, P. Bowyer, N. Osherov, T. Fontaine, G.H. Goldman, E. Mellado, M. Bromley and J. Amich. Microbiology Spectrum.2023 13;11(2):e0477022

PUBMED DOI

COVID-19 Associated Pulmonary Aspergillosis (CAPA): Hospital or Home Environment as a source of life-threatening Aspergillus fumigatus infection?

Peláez-García de la Rasilla T, González-Jiménez I, García-Fernández Arroyo A, Roldán A, Carretero-Ares JL, Clemente-García M,, Martínez-Suarez M, Vázquez Valdés F, Melón-Garcia S, Mellado E, Sánchez-Nuñez ML on behalf HUCAPA group. Journal of Fungi, 2022 Mar 19;8(3):316.

PUBMED DOI

An expanded agar base secreening method for azole resistant Aspergillus fumigatus

Lucio J, Gonzalez-Jimenez I, Garcia-Rubio R, Cuetara MS and Mellado E. Mycoses 2022, 65 (2): 178-185.

PUBMED DOI

Are point mutations in HMG-CoA reductases (Hmg1 and Hmg2) a step towards azole resistance in Aspergillus fumigatus?

Gonzalez-Jimenez I., Lucio J., Roldan A, Alcazar-Fuoli L. and Mellado E. Molecules, 2021, 26(19):5975.

PUBMED DOI

Multi-resistance to non-azole fungicides in Aspergillus fumigatus TR34/L98H azole resistant isolates

Gonzalez-Jimenez I, Garcia-Rubio R, Monzon S, Lucio J, Cuesta I, and Mellado E. Antimicrob Agents Chemother. 17;65(9):e0064221

PUBMED DOI

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

PUBMED DOI

Guasp, P., E. Lorente, A. Martín-Esteban, E. Barnea, P. Romania, D. Fruci, J. J. W. Kuiper, A. Admon, and J. A. López de Castro. 2019. Redundancy and Complementarity between ERAP1 and ERAP2 Revealed by their Effects on the Behcet's Disease-Associated HLA-B*51 Peptidome. Mol.Cell Proteomics.

Guasp, P., E. Lorente, A. Martín-Esteban, E. Barnea, P. Romania, D. Fruci, J. J. W. Kuiper, A. Admon, and J. A. López de Castro. 2019. Redundancy and Complementarity between ERAP1 and ERAP2 Revealed by their Effects on the Behcet's Disease-Associated HLA-B*51 Peptidome. Mol.Cell Proteomics.

PUBMED DOI

CD69 targeting enhances anti-Vaccinia virus immunity

Notario L., Redondo-Antón J., Alari-Pahissa E., Albentosa A., Leiva M., López D., Sabio G., and Lauzurica P. (2019) CD69 targeting enhances anti-Vaccinia virus immunity. Journal of Virology 12;93(19). pii: e00553-19.

PUBMED DOI

Proteomics analysis reveals that structural proteins of the virion core and involved in gene expression are the main source for HLA class II ligands in vaccinia virus-infected cells.

Lorente, E., Martin-Galiano, A. J., Barnea, E., Barriga, A., Palomo, C., Garcia-Arriaza, J., Mir, C., Lauzurica, P., Esteban, M., Admon, A., and Lopez, D. (2019) Proteomics analysis reveals that structural proteins of the virion core and involved in gene expression are the main source for HLA class II ligands in vaccinia virus-infected cells. J.Proteome.Res. 18(9):3512-3520

PUBMED DOI

Computational characterization of the peptidome in transporter associated with antigen processing (TAP)-deficient cells.

Martin-Galiano, A. J. and Lopez, D. (2019) Computational characterization of the peptidome in transporter associated with antigen processing (TAP)-deficient cells. PLoS.ONE. 14, e0210583.

PUBMED DOI

Lorente, E., A. Barriga, E. Barnea, C. Palomo, J. Garcia-Arriaza, C. Mir, M. Esteban, A. Admon, and D. López. 2019. Immunoproteomic analysis of a Chikungunya poxvirus-based vaccine reveals high HLA class II immunoprevalence. PLoS.Negl.Trop.Dis. 13:e0007547.

Lorente, E., A. Barriga, E. Barnea, C. Palomo, J. Garcia-Arriaza, C. Mir, M. Esteban, A. Admon, and D. López. 2019. Immunoproteomic analysis of a Chikungunya poxvirus-based vaccine reveals high HLA class II immunoprevalence. PLoS.Negl.Trop.Dis. 13:e0007547.

PUBMED DOI

López, D., A. Barriga, E. Lorente, and C. Mir. 2019. Immunoproteomic Lessons for Human Respiratory Syncytial Virus Vaccine Design. J.Clin.Med. 8.

López, D., A. Barriga, E. Lorente, and C. Mir. 2019. Immunoproteomic Lessons for Human Respiratory Syncytial Virus Vaccine Design. J.Clin.Med. 8.

PUBMED DOI

Brait, V. H., F. Miro-Mur, I. Perez-de-Puig, L. Notario, B. Hurtado, J. Pedragosa, M. Gallizioli, F. Jimenez-Altayo, M. Arbaizar-Rovirosa, A. Otxoa-de-Amezaga, J. Monteagudo, M. Ferrer-Ferrer, l. R. de, X, E. Bonfill-Teixidor, A. Salas-Perdomo, A. Hernandez-Vidal, P. Garcia-de-Frutos, P. Lauzurica, and A. M. Planas. 2019. CD69 Plays a Beneficial Role in Ischemic Stroke by Dampening Endothelial Activation. Circ.Res. 124:279-291.

Brait, V. H., F. Miro-Mur, I. Perez-de-Puig, L. Notario, B. Hurtado, J. Pedragosa, M. Gallizioli, F. Jimenez-Altayo, M. Arbaizar-Rovirosa, A. Otxoa-de-Amezaga, J. Monteagudo, M. Ferrer-Ferrer, l. R. de, X, E. Bonfill-Teixidor, A. Salas-Perdomo, A. Hernandez-Vidal, P. Garcia-de-Frutos, P. Lauzurica, and A. M. Planas. 2019. CD69 Plays a Beneficial Role in Ischemic Stroke by Dampening Endothelial Activation. Circ.Res. 124:279-291.

DOI

Lorente, E., J. Redondo-Anton, A. Martín-Esteban, P. Guasp, E. Barnea, P. Lauzurica, A. Admon, and J. A. López de Castro. 2019. Substantial Influence of ERAP2 on the HLA-B*40:02 Peptidome: Implications for HLA-B*27-Negative Ankylosing Spondylitis. Mol.Cell Proteomics. 18:2298-2309.

Lorente, E., J. Redondo-Anton, A. Martín-Esteban, P. Guasp, E. Barnea, P. Lauzurica, A. Admon, and J. A. López de Castro. 2019. Substantial Influence of ERAP2 on the HLA-B*40:02 Peptidome: Implications for HLA-B*27-Negative Ankylosing Spondylitis. Mol.Cell Proteomics. 18:2298-2309.

PUBMED DOI

Lorente, E., C. Palomo, E. Barnea, C. Mir, V. M. Del, A. Admon, and D. López. 2019a. Natural Spleen Cell Ligandome in Transporter Antigen Processing-Deficient Mice. J.Proteome.Res. 18:3512-3520.

Lorente, E., C. Palomo, E. Barnea, C. Mir, V. M. Del, A. Admon, and D. López. 2019a. Natural Spleen Cell Ligandome in Transporter Antigen Processing-Deficient Mice. J.Proteome.Res. 18:3512-3520.

PUBMED

Lorente, E., M. G. Fontela, E. Barnea, A. J. Martín-Galiano, C. Mir, B. Galocha, A. Admon, P. Lauzurica, and D. López. 2020. Modulation of Natural HLA-B*27:05 Ligandome by Ankylosing Spondylitis-associated Endoplasmic Reticulum Aminopeptidase 2 (ERAP2). Mol.Cell Proteomics. 19:994-1004.

Lorente, E., M. G. Fontela, E. Barnea, A. J. Martín-Galiano, C. Mir, B. Galocha, A. Admon, P. Lauzurica, and D. López. 2020. Modulation of Natural HLA-B*27:05 Ligandome by Ankylosing Spondylitis-associated Endoplasmic Reticulum Aminopeptidase 2 (ERAP2). Mol.Cell Proteomics. 19:994-1004.

PUBMED DOI

Redondo-Anton, J., M. G. Fontela, L. Notario, R. Torres-Ruiz, S. Rodriguez-Perales, E. Lorente, and P. Lauzurica. 2020. Functional Characterization of a Dual Enhancer/Promoter Regulatory Element Leading Human CD69 Expression. Front Genet. 11:552949.

Redondo-Anton, J., M. G. Fontela, L. Notario, R. Torres-Ruiz, S. Rodriguez-Perales, E. Lorente, and P. Lauzurica. 2020. Functional Characterization of a Dual Enhancer/Promoter Regulatory Element Leading Human CD69 Expression. Front Genet. 11:552949.

PUBMED DOI

Fontela, M. G., L. Notario, E. Alari-Pahissa, E. Lorente, and P. Lauzurica. 2019

Fontela, M. G., L. Notario, E. Alari-Pahissa, E. Lorente, and P. Lauzurica. 2019. The Conserved Non-Coding Sequence 2 (CNS2) Enhances CD69 Transcription through Cooperation between the Transcription Factors Oct1 and RUNX1. Genes (Basel) 10.

PUBMED DOI

Content with Investigacion Hepatitis .

List of staff

Additional 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.

Content with Investigacion Hepatitis .