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Bacterial Genetics

Líneas de investigación

Content with Investigacion Genética Bacteriana .

Bacterial Genetics

Our group has been studying for more than 30 years the mechanisms of antibiotic resistance in Streptococcus pneumoniae (Spn). Our objectives are to understand the molecular basis of antimicrobial action, to search for new targets of action and new compounds. Seconeolitsine (SCN) is one of these new compounds targeting topoisomerase I (Topo I). As for the search for new targets, our research has focused in recent years on the factors that organize the topology of the chromosome, allowing optimal compaction (about 1000-fold) to harmonize its replication, chromosome segregation and gene expression. This compaction is mediated both by the level of DNA supercoiling (Sc) and by association with nucleoid-binding proteins (NAPs). The level of Sc depends mainly on the enzymatic activities of their DNA topoisomerases, reaching a homeostatic equilibrium by the opposite activities of the topoisomerases that relax DNA (Topo I and Topo IV), and of gyrase, which introduces negative Sc. Our group has characterized the three Spn topoisomerases and two NAPs: HU and SatR. In addition, the availability of antimicrobials that inhibit each of the Spn topoisomerases has allowed us to analyze their transcriptome under conditions of local or global change of the Sc level and to define gene domains of coordinated transcription and similar functions. Fluoroquinolones, which inhibit Topo IV and gyrase, produce local changes in Sc that induce alterations in 6% of the transcriptome, altering metabolic pathways that originate an increase in reactive oxygen species (ROS) that contribute to lethality, in accordance with the general mechanism of bactericidal antibiotics. On the other hand, the induction of global changes in Sc by novobiocin (NOV, gyrase inhibitor), or by SCN (Topo I inhibitor), has allowed us to define topological domains. Global changes in Sc include the regulation of topoisomerase genes: its decrease activates the transcription of gyrase genes (gyrA, gyrB) and inhibits those of Topo IV (parEC) and Topo I (topA); the increase in Sc regulates the expression of topA. Decreased Sc affects 37% of the genome, with >68% of genes clustered in 15 domains. Increased Sc affects 10% of the genome, with 25% of the genes clustered in 12 domains. The AT content in the genome correlates with the domains, being higher in UP domains than in DOWN domains. The genes in the different domains have common functional characteristics, indicating that they have been subjected to topological selective pressure to determine the location of genes involved in metabolism, virulence and competition. 

The current objectives of the group are:
1.    Identification of factors that stabilize chromosome topology: NAPs, ncRNAs, intra-chromosomal interactions.
2.    Regulation of transcription in response to topological stress: in vivo localization of DNA topoisomerases, RNA polymerase and NAPs.
3.    Topo I as a new antimicrobial target and action of SCN. 
4.    Design of antisense RNAs and use of the CRISPR system as new antibacterial agents.

Proyectos de investigación

Content with Investigacion Genética Bacteriana .

1) Project Title: Interaction Between DNA Supercoiling and Transcription in the Human Pathogen  Streptococcus pneumoniae

Principal Investigator:   Adela González de la Campa  
Funding Entity:   Ministry of Science and Innovation, State Research Agency (Call for "R&D&I Projects" 2020 – "Research Challenges" and "Knowledge Generation" Modalities).  
Reference:   PID2021-124738OB-100.  
Duration:   2022-2025.  
Funding Amount:   €108,900.
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2) Project Title:   Study of the Factors Organizing the Chromosome of  Streptococcus pneumoniae: New Antibiotic Targets and Resistance Mechanisms.

Principal Investigator:   Adela González de la Campa  
Funding Entity:   Ministry of Economy, Industry, and Competitiveness. State Research Agency.  
Reference:   BIO2017-82951-R.  
Duration:   2018-2020.  
Funding Amount:   €169,400.  

3) Project Title:   Role of DNA Topoisomerases and Nucleoid-Associated Proteins in the Chromosome Organization of  Streptococcus pneumoniae: Response to Antibiotics and Virulence.  

Principal Investigator:   Adela González de la Campa  
Funding Entity:   Ministry of Economy and Competitiveness. Secretariat of State for Research, Development, and Innovation.  
Reference:   BIO2014-55462.  
Duration:   2015-2017.  
Funding Amount:   €193,600.  

4) Project Title:   The Control of Supercoiling Level in  Streptococcus pneumoniae  as an Antimicrobial Target.  

Principal Investigator:   Adela González de la Campa  
Funding Entity:   Ministry of Economy and Competitiveness. Secretariat of State for Research, Development, and Innovation.  
Reference:   BIO2011-25343.  
Duration:   2012-2015.  
Funding Amount:   €209,000.  

5) Project Title:   Role of Small Non-Coding RNAs in the Pathogenicity of  Streptococcus pneumoniae.   

Principal Investigator:   Mónica Amblar Esteban  
Funding Entity:   Ministry of Economy and Competitiveness. Strategic Health Action (AES).  
Reference:   PI11/00656.  
Duration:   2012-2015.  
Funding Amount:   €198,714.
 

Publicaciones destacadas

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Molecular epidemiology of the first Spanish enterovirus A71 outbreak associated with severe neurological diseases, 2016.

R Gonzalez-Sanz*, D Casas-Alba, C Launes, C Muñoz-Almagro, M Ruiz-García, MJ Gonzalez-Abad, M Alonso, G Megias, N Rabella, M del Cuerpo, M Gozalo-Margüello, A González-Praetorius, A Martínez-Sapiña, MJ Goyanes-Galán, MP Romero, C Calvo, A Antón, M Imaz, M Aranzamendi, Á Hernandez, A Moreno-Docón, S Rey Cao, A Navascuences, A Otero, M Cabrerizo. Molecular epidemiology of the first Spanish enterovirus A71 outbreak associated with severe neurological diseases, 2016. Euro Surveill. 2019 Feb;24(7).

PUBMED DOI

Acute flaccid paralysis (AFP) surveillance: challenges and opportunities from 18 years’ experience, Spain, 1998 to 2015.

J Masa-Calles, N Torner, N López-Perea, MV Torres de Mier, B Fernández-Martínez, M Cabrerizo, V Gallardo-García, C Malo, M Margolles, M Portell, N Abadía, A Blasco, S García-Hernández, H Marcos, N Rabella, C Marín, A Fuentes, I Losada, A Nieto, V García Ortúzar, M García Cenoz, JM Arteagoitia, Á Blanco Martínez, A Rivas, D Castrillejo, Spanish AFP Surveillance Working Group. Acute flaccid paralysis (AFP) surveillance: challenges and opportunities from 18 years’ experience, Spain, 1998 to 2015. EuroSurveill 2018 23(47):pii=1700423.

PUBMED DOI

Recommendations for enterovirus diagnostics and characterisation within and beyond Europe.

H Harvala, E Broberg, K Benschop, N Berginc, S Ladhani, P Susi, C Christiansen, J McKenna, D Allen, P Makiello, G McAllister, M Carmen, M Sveinsdottir, K Zakikhany, T Gunnarsdottir, R Dyrdak, X Nielsen, T Madsen, J Paul, C Moore, K von Eije, A Piralla , M Strutt, M Carileir, L Vanoverschelde, R Poelman, A Anton, X López-Labrador, C Galli, K Keeren, M Maier, H Cassidy, S Derdas, C Savolainen-Kopra, S Diedrich, S Nordbø, P Minor, J Buesa, H Yu, Q Liao, JL Bailly, F Baldanti, A MacAdam, N Grossly, A Mirand, S Dudman, I Schuffenecker, S Kadamba, n Neyts, M Griffiths, J Richter, C Margaretto, S Govind, U Morley, S Krokstad, J Dean, M Salort, B Prochazka, H-R Honkanen, M Cabrerizo, M Majumdar, L Pellegrinelli, G Nebbia, M Wiewel, S Cottrell, P Coyle, O Adams, J Martin, S Midgley, P Horby, K Wolthers, B Hubert Niesters, P Simmonds and TK Fischer. Recommendations for enterovirus diagnostics and characterisation within and beyond Europe. J Clin Virol 101: 11-17 (2018).

PUBMED DOI

Molecular surveillance of norovirus, 2005-16: an epidemiological analysis of data collected from the NoroNet network.

4. J van Beek, M de Graaf, H Al-Hhello, DJ Allen, K Ambert-Balay, N Botteldoorn, M Brytting, J Buesa, M Cabrerizo, M Chan, F Cloak, I Di Bartolo, S Guix, J Hewitt, N Iritani, M Jin, R Johne, I Lederer, J Mans, V Martella, L Maunula, G McAllister, S Niendorf, HG Niesters, AT Podkolzin, M Poljsak-Prijatelj, L Dam Rasmussen, G Reuter, G Tuite, A Kroneman, H Vennema, MPG Koopmans, on behalf of NoroNet. Molecular surveillance of norovirus, 2005-16: an epidemiological analysis of data collected from the NoroNet network. Lancet Infect Dis 18:545-553 (2018)

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First Cases of Severe Flaccid Paralysis Associated with Enterovirus D68 Infection in Spain, 2015-2016.

M Cabrerizo*, JP García-Iñiguez, F Munell, A Amado, P Madurga-Revilla, C Rodrigo, S Pérez, A Martínez-Sapiña, A Antón, G Suárez, N Rabella, V Del Campo, A Otero, J Masa-Calles. First Cases of Severe Flaccid Paralysis Associated with Enterovirus D68 Infection in Spain, 2015-2016. Pediatric Infect Dis J; 36: 1214-1216 (2017).

PUBMED DOI

Outbreak of brainstem encephalitis associated with enterovirus-A71 in Catalonia, Spain (2016): a clinical observational study in a children’s reference centre in Catalonia

6. D Casas-Alba, M de Sevilla, A Valero-Rello, C Fortuny, JJ Garcia, C Ortez, J Muchart, T Armangue, I Jordan, C Luaces-Cubells, I Barrabeig, R González-Sanz, M Cabrerizo, C Munoz-Almagro, C Launes. Outbreak of brainstem encephalitis associated with enterovirus-A71 in Catalonia, Spain (2016): a clinical observational study in a children’s reference centre in Catalonia. Clin Microbiol Infect 23: 874-881 (2017)

PUBMED DOI

Molecular epidemiology of enterovirus and parechovirus infections according to patient age over a 4-year period in Spain.

7. M Cabrerizo*, M Díaz-Cerio, C Muñoz-Almagro, N Rabella, D Tarragó, MP Romero, MJ Pena, C Calvo, S Rey-Cao, A Moreno-Docón, I Martínez-Rienda, A Otero, G Trallero. Molecular epidemiology of enterovirus and parechovirus infections according to patient age over a 4-year period in Spain. J Med Virol 89: 435-442 (2017).

PUBMED DOI

Molecular epidemiology of enterovirus 71, coxsackievirus A16 and A6 associated with hand, foot and mouth disease in Spain

9. M Cabrerizo*, D Tarragó, C Muñóz-Almagro, E del Amo, M Domínguez-Gil, JM Eiros, I López-Miragaya, C Pérez, J Reina, A Otero, I González, JE Echevarría, G Trallero. Molecular epidemiology of enterovirus 71, coxsackievirus A16 and A6 associated with hand, foot and mouth diease in Spain. Clin Microbiol Infect; 20: O150–O156 (2014).

PUBMED DOI

Going beyond serology for stratifying the risk of CMV infection in transplant recipients

Navarro D, Fernández-Ruiz M, Aguado JM, Sandonís V, Pérez-Romero P*. Going beyond serology for stratifying the risk of CMV infection in transplant recipients. Rev Med Virol. 2019 Jan;29(1):e2017.

PUBMED DOI

Impact of pretransplant CMV-specific T-cell immune response in the control of CMV infection after solid organ transplantation: a prospective cohort study. Clin Microbiol Infect.

Molina-Ortega A, Martín-Gandul C, Mena-Romo JD, Rodríguez-Hernández MJ, Suñer M, Bernal C, Sánchez M, Sánchez-Céspedes J, Pérez Romero P*, Cordero E. Impact of pretransplant CMV-specific T-cell immune response in the control of CMV infection after solid organ transplantation: a prospective cohort study. Clin Microbiol Infect. 2019 Jun;25(6):753-758.

PUBMED DOI

Kinetic of the CMV-specific T-cell immune response and CMV infection in CMV-seropositive kidney transplant recipients receiving rabbit anti-thymocyte globulin induction therapy: A pilot study.

Martín-Gandul C, Pérez-Romero P*, Mena-Romo D, Molina-Ortega A, González-Roncero FM, Suñer M, Bernal G, Cordero E; Spanish Network for Research in Infectious Diseases (REIPI). Kinetic of the CMV-specific T-cell immune response and CMV infection in CMV-seropositive kidney transplant recipients receiving rabbit anti-thymocyte globulin induction therapy: A pilot study. Transpl Infect Dis. 2018 Jun;20(3):e12883.

PUBMED DOI

CMV-specific T-cell immunity in solid organ transplant recipients at low risk of CMV infection. Chronology and applicability in preemptive therapy.

Mena-Romo JD, Pérez Romero P*, Martín-Gandul C, Gentil MÁ, Suárez-Artacho G, Lage E, Sánchez M, Cordero E. CMV-specific T-cell immunity in solid organ transplant recipients at low risk of CMV infection. Chronology and applicability in preemptive therapy. J Infect. 2017 Oct;75(4):336-345.

PUBMED DOI

Two Doses of Inactivated Influenza Vaccine Improve Immune Response in Solid Organ Transplant Recipients: Results of TRANSGRIPE 1-2, a Randomized Controlled Clinical Trial.

Cordero E, Roca-Oporto C, Bulnes-Ramos A, Aydillo T, Gavaldà J, Moreno A, Torre-Cisneros J, Montejo JM, Fortun J, Muñoz P, Sabé N, Fariñas MC, Blanes-Julia M, López-Medrano F, Suárez-Benjumea A, Martinez-Atienza J, Rosso-Fernández C, Pérez-Romero P*. Two Doses of Inactivated Influenza Vaccine Improve Immune Response in Solid Organ Transplant Recipients: Results of TRANSGRIPE 1-2, a Randomized Controlled Clinical Trial. Clin Infect Dis. 2017 Apr 1;64(7):829-838.

PUBMED DOI

Applying lessons learned from cytomegalovirus infection in transplant patients to vaccine design.

Blanco-Lobo P, Bulnes-Ramos Á, McConnell MJ, Navarro D, Pérez-Romero P*. Applying lessons learned from cytomegalovirus infection in transplant patients to vaccine design. Drug Discov Today. 2016 Apr;21(4):674-81.

PUBMED DOI

Use of antibodies neutralizing epithelial cell infection to diagnose patients at risk for CMV Disease after transplantation.

Blanco-Lobo P, Cordero E, Martín-Gandul C, Gentil MA, Suárez-Artacho G, Sobrino M, Aznar J, Pérez-Romero P*. Use of antibodies neutralizing epithelial cell infection to diagnose patients at risk for CMV Disease after transplantation. J Infect. 2016 May;72(5):597-607.

PUBMED DOI

Timing of CMV-specific effector memory T cells predicts viral replication and survival after allogeneic hematopoietic stem cell transplantation.

Espigado I, de la Cruz-Vicente F, BenMarzouk-Hidalgo OJ, Gracia-Ahufinger I, Garcia-Lozano JR, Aguilar-Guisado M, Cisneros JM, Urbano-Ispizua A, Perez-Romero P*. Timing of CMV-specific effector memory T cells predicts viral replication and survival after allogeneic hematopoietic stem cell transplantation. Transpl Int. 2014 Dec;27(12):1253-62.

PUBMED DOI

Clinical impact of neutropenia related with the preemptive therapy of CMV infection in solid organ transplant recipients.

Martín-Gandul C, Pérez-Romero P*, González-Roncero FM, Berdaguer S, Gómez MA, Lage E, Sánchez M, Cisneros JM, Cordero E; Spanish Network for Research in Infectious Diseases REIPI. Clinical impact of neutropenia related with the preemptive therapy of CMV infection in solid organ transplant recipients. J Infect. 2014 Nov;69(5):500-6.

PUBMED DOI

Viral load, CMV-specific T-cell immune response and cytomegalovirus disease in solid organ transplant recipients at higher risk for cytomegalovirus infection during preemptive therapy.

Martín-Gandul C, Pérez-Romero P*, Blanco-Lobo P, Benmarzouk-Hidalgo OJ, Sánchez M, Gentil MA, Bernal C, Sobrino JM, Rodríguez-Hernández MJ, Cordero E; Spanish Network for Research in Infectious Diseases (REIPI). Viral load, CMV-specific T-cell immune response and cytomegalovirus disease in solid organ transplant recipients at higher risk for cytomegalovirus infection during preemptive therapy. Transpl Int. 2014 Oct;27(10):1060-8.

PUBMED DOI

What is responsible for a large and unusual outbreak of leishmaniasis in Madrid?

8. Carrillo E, Moreno J, Cruz I. What is responsible for a large and unusual outbreak of leishmaniasis in Madrid? Trends Parasitol. 2013 Dec;29(12):579-80.

PUBMED DOI

HCV eradication with IFN-based therapy does not completely restore gene expression in PBMCs from HIV/HCV-coinfected patients.

9. Brochado O, Martínez I (*), Berenguer J, Medrano L, González-García J, Jiménez-Sousa MA, Carrero A, Hontañón V, Navarro J, Guardiola JM, Pérez-Latorre L, Micán R, Fernández-Rodríguez A (‡), Resino S (* ‡). HCV eradication with IFN-based therapy does not completely restore gene expression in PBMCs from HIV/HCV-coinfected patients. J Biomed Sci 2021; 28:23 (A; FI= 12.77; D1, Medicine, Research & Experimental; JCR 2021).

PUBMED DOI

Dynamics of HIV Reservoir and HIV-1 Viral Splicing in HCV-Exposed Individuals after Elimination with DAAs or Spontaneous Clearance.

Martínez-Román P, Crespo-Bermejo C, Valle-Millares D, Lara-Aguilar V, Arca-Lafuente S, Martín-Carbonero, Ryan P, De los Santos I, López-Huertas MR, Palladino C, Muñoz-Muñoz M, Fernández-Rodríguez A*, Coiras M, Briz V, on behalf of COVIHEP network. Dynamics of HIV Reservoir and HIV-1 Viral Splicing in HCV-Exposed Individuals after Elimination with DAAs or Spontaneous Clearance. Journal of Clinical Medicine 2022, 11: 3579.

PUBMED DOI

Protein Saver® cards: the best alternative for DBS storage at room temperature for HCV RNA.

Arca-Lafuente S, Casanueva-Benítez C, Crespo-Bermejo C, Lara-Aguilar V, Martín-Carbonero L, De los Santos I, Madrid R, Briz V*. Protein Saver® cards: the best alternative for DBS storage at room temperature for HCV RNA. 903 Scientific Report 2022, 12: 10124.

PUBMED DOI

Diarrhoea-causing enteric protist species in intensively and extensively raised pigs (Sus scrofa domesticus) in Southern Spain. Part II: Association with Hepatitis E virus susceptibility.

Rivero-Juarez A, Dashti A, Santín M, George, Köster PC, Lopez-Lopez P, Risalde MA, García-Bocanegra I, Gomez-Villamandos JC, Caballero-Gómez J, Frías M, Bailo B, Ortega S, Muadica AS, Calero-Bernal R, González-Barrio D, Rivero A, Briz V*, Carmena D. Diarrhoea-causing enteric protist species in intensively and extensively raised pigs (Sus scrofa domesticus) in Southern Spain. Part II: Association with Hepatitis E virus susceptibility. Transboundary and Emerging Diseases 2021, 69: e1172-e1178.

PUBMED DOI

Hepatitis C virus influences HIV-1 viral splicing in coinfected patients.

Martínez-Román P, López-Huertas MR, Crespo-Bermejo C, Arca-Lafuente S, Cortegano I, Valle-Millares D, Gaspar ML, Martín-Carbonero, Domínguez-Domínguez L, Ryan P, De los Santos I, De la Fuente Moral S, Fernández-Rodríguez A, Coiras M, Briz V, on behalf of COVIHEP. Hepatitis C virus influences HIV-1 viral splicing in coinfected patients. J Clin Med 2020, 9 (7): 2091.

PUBMED DOI

rotist enteroparasites in wild boar (Sus scrofa ferus) and black Iberian pig (Sus scrofa domesticus) in southern Spain: a protective effect on hepatitis E acquisition?

Rivero-Juárez A, Dashti A, López-López P, Salimo Muadica A, Risalde MA, Köster PC, Machuca I, Bailo B, Hernández de Mingo M, Dacal E, García-Bocanegra I, Saugar JM, Calero-Bernal R, González-Barrio D, Rivero A, Briz V, Carmena D. Protist enteroparasites in wild boar (Sus scrofa ferus) and black Iberian pig (Sus scrofa domesticus) in southern Spain: a protective effect on hepatitis E acquisition? Parasites & Vectors 2020, 13: 281

PUBMED DOI

Epidemiological trend of hepatitis C-related liver events in Spain (2000-2015): A nationwide population-based study.

7. Rivero-Juárez A, Dashti A, López-López P, Salimo Muadica A, Risalde MA, Köster PC, Machuca I, Bailo B, Hernández de Mingo M, Dacal E, García-Bocanegra I, Saugar JM, Calero-Bernal R, González-Barrio D, Rivero A, Briz V, Carmena D. Protist enteroparasites in wild boar (Sus scrofa ferus) and black Iberian pig (Sus scrofa domesticus) in southern Spain: a protective effect on hepatitis E acquisition? Parasites & Vectors 2020, 13: 281

PUBMED DOI

Nanotechnology: A reality for diagnosis of HCV infectious disease.

Arca-Lafuente S, Martínez-Román P, Mate-Cano I, Madrid R, Briz V. Nanotechnology: A reality for diagnosis of HCV infectious disease. Journal of Infection 2020, 80 (1); 8-15.

PUBMED DOI

Multidisciplinary Group of viral coinfection HIV/Hepatitis (COVIHEP). HCV-coinfection is related to an increased HIV-1 reservoir size in cART-treated HIV patients: a cross-sectional study.

López-Huertas MR, Palladino C, Garrido-Arquero M, Esteban-Cartelle B, Sánchez-Carrillo M, Martínez-Román P, Martín-Carbonero L, Ryan P, Domínguez-Domínguez L, Santos ID, Moral SDLF, Benito JM, Rallón N, Alcamí J, Resino S, Fernández-Rodríguez A, Coiras M, Briz V*, on behalf of the Multidisciplinary Group of viral coinfection HIV/Hepatitis (COVIHEP). HCV-coinfection is related to an increased HIV-1 reservoir size in cART-treated HIV patients: a cross-sectional study. Sci Rep 2019: 9 (1); 5606.

PUBMED DOI

Persistent Low-Level Viremia in treatment HIV infection: An unresolved status.

3. Crespo-Bermejo C, Ramírez de Arellano E, Lara-Aguilar V, Martínez-Román P, Arca Lafuente S, Gómez-Lus ML, Martín-Carbonero L, Briz V. Persistent Low-Level Viremia in treatment HIV infection: An unresolved status. Virulencia 2021, 12: 2919-2931.

PUBMED DOI

Full coding hepatitis E virus genotype 3 genome amplification method.

Muñoz-Chimeno M, Forero JE, Echevarría JM, Muñoz-Bellido JL, Vázquez-López L, Morago L, García-Galera MC, Avellón A. Full coding hepatitis E virus genotype 3 genome amplification method. J Virol Methods. 2016 Apr;230:18-23.

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Comparative sensitivity of commercial tests for hepatitis E genotype 3 virus antibody detection.

• Avellón A, Morago L, García-Galera del Carmen M, Muñoz M, Jose-Manuel Echevarría JM. Comparative sensitivity of commercial tests for hepatitis E genotype 3 virus antibody detection. J Med Virol. 2015 Nov;87(11):1934-9.

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Epidemiology and predictive factors for early and late mortality in Candida bloodstream infections: a population-based surveillance in Spain

11: Puig-Asensio M, Padilla B, Garnacho-Montero J, Zaragoza O, Aguado JM, Zaragoza R, Montejo M, Muñoz P, Ruiz-Camps I, Cuenca-Estrella M, Almirante B; CANDIPOP Project; GEIH-GEMICOMED (SEIMC); REIPI. Epidemiology and predictive factors for early and late mortality in Candida bloodstream infections: a population-based surveillance in Spain. Clin Microbiol Infect. 2014 Apr;20(4):O245-54.

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B Pérez de Val, B Romero, MT Tórtola, L Herrera-León, P Pozo, I Mercader, JL Sáez, M Domingo, E Vidal. Poly-resistant Mycobacterium bovis infection in a human and sympatric sheep, Spain, 2017-2018

B Pérez de Val, B Romero, MT Tórtola, L Herrera-León, P Pozo, I Mercader, JL Sáez, M Domingo, E Vidal. Poly-resistant Mycobacterium bovis infection in a human and sympatric sheep, Spain, 2017-2018. Emerg Infect Dis. 2021 Apr;27(4):1241-1243. doi: 10.3201/eid2704.204467. PMID: 33755008.

DOI

L Bernal-Martínez; L Herrera-Leon; C Valero; P de la Cruz; L Ghimpu; AC Mesa-Arango; G Santoni; L Goterris; R Millán; MJ Buitrago. Differential Diagnosis of Fungal Pneumonias vs.Tuberculosis in AIDS Patients by Using Two New Molecular Methods.

L Bernal-Martínez; L Herrera-Leon; C Valero; P de la Cruz; L Ghimpu; AC Mesa-Arango; G Santoni; L Goterris; R Millán; MJ Buitrago. Differential Diagnosis of Fungal Pneumonias vs.Tuberculosis in AIDS Patients by Using Two New Molecular Methods. J. Fungi 2021, 7, 336. doi.org: 10.3390/jof7050336. PMID: 33925404.

DOI

E Tagliani, RAnthony, TA Kohl, A de Neeling, V Nikolayevskyy, C Ködmön, FP Maurer, S Niemann, D van Soolingen, MJ van der Werf, D Cirillo, ECDC molecular surveillance project participants. Use of a whole genome sequencing-based approach for Mycobacterium tuberculosis surveillance in Europe in 2017-2019: an ECDC pilot study

E Tagliani, RAnthony, TA Kohl, A de Neeling, V Nikolayevskyy, C Ködmön, FP Maurer, S Niemann, D van Soolingen, MJ van der Werf, D Cirillo, ECDC molecular surveillance project participants. Use of a whole genome sequencing-based approach for Mycobacterium tuberculosis surveillance in Europe in 2017-2019: an ECDC pilot study. Eur Respir J. 2021 Jan 5;57(1):2002272. doi: 10.1183/13993003.02272-2020. Print 2021 Jan. PMID: 32732329.

DOI

MJ Iglesias, D Ibarz, A Cebollada, J Comín, MS Jiménez, MC Vázquez, S Samper, Spanish Working Group on MDRTB. The value of the continuous genotyping of multidrug resistant tuberculosis over 20 years in Spain.

MJ Iglesias, D Ibarz, A Cebollada, J Comín, MS Jiménez, MC Vázquez, S Samper, Spanish Working Group on MDRTB. The value of the continuous genotyping of multidrug resistant tuberculosis over 20 years in Spain. Sci Rep. 2020 Nov 24;10(1):20433. doi: 10.1038/s41598-020-77249-x. PMID: 33235225.

DOI

S Campos-Gutierrez, MJ Ramos-Real, R Abreu, MS Jimenez, M Lecuona. Pseudo-ourbreak of Mycobacterium fortuitum, in a hospital bronchoscopy unit.

S Campos-Gutierrez, MJ Ramos-Real, R Abreu, MS Jimenez, M Lecuona. Pseudo-ourbreak of Mycobacterium fortuitum, in a hospital bronchoscopy unit. Am J Infect Control. 2020 Jul;48(7):765-769. doi: 10.1016/j.ajic.2019.11.019. Epub 2019 Dec 24. PMID: 31882175.

DOI

Gascha , Y Meijeb, M Espasac, B Fonta, MS Jiménez, N Fernández-Hidalgo. Disseminated Infection Due to Mycobacterium chimaera After Aortic Valve Replacement.

Gascha , Y Meijeb, M Espasac, B Fonta, MS Jiménez, N Fernández-Hidalgo. Disseminated Infection Due to Mycobacterium chimaera After Aortic Valve Replacement. Revista Española de cardiología. 2019. Vol 72 (6):502-503. DOI: 10.1016/j.rec.2018.06.026. PMID: 30029979

DOI

PBMCs gene expression signature of advanced cirrhosis with high risk for clinically significant portal hypertension in HIV/HCV coinfected patients: A cross-control study

2. Salgüero S, Brochado-Kith O, Virseda Verdices A, Berenguer J, González-García J, Martínez I, Díez C, Hontañón V, Pérez-Latorre L, Fernández-Rodríguez A (‡), Jiménez-Sousa MA (‡,*), and Resino S (‡, *). PBMCs gene expression signature of advanced cirrhosis with high risk for clinically significant portal hypertension in HIV/HCV coinfected patients: A cross-control study. Biomed Pharmacother 2023, 159:114220. (A; FI= 7.42; D1, Pharmacology & Pharmacy; JCR 2021). PMID: 36628818. DOI: 10.1016/j.biopha.2023.114220.

PUBMED

Low anti-SARS-CoV-2 S antibody levels predict increased mortality and dissemination of viral components in the blood of critical COVID-19 patients

4. Martin-Vicente M, Almansa R, Martínez I, Tedim AP, Bustamante E, Tamayo L, Aldecoa C, Gómez JM, Renedo G, Berezo JA, Cedeño JA, Mamolar N, García Olivares P, Herrán-Monge R, Cicuendez R, Enríquez P, Ortega A, Jorge N, Doncel C, Fuente A, Bustamante-Munguira J, Muñoz-Gómez MJ, González-Rivera M, Puertas C, Más V, Vázquez M, Pérez-García F, Rico-Feijoo J, Martín S, Motos A, Fernandez-Barat L, Eiros JM, Domínguez-Gil M, Ferrer R, Barbé F, Trapiello W, Kelvin DJ (¥), Bermejo-Martin JF (* ¥), Resino S (¥), Torres A (* ¥). Low anti-SARS-CoV-2 S antibody levels predict increased mortality and dissemination of viral components in the blood of critical COVID-19 patients. J Intern Med. 2022, 291(2):232–240. (A; FI= 13.07; D1, Medicine, General & Internal; JCR 2021). PMID: 34611927. DOI: 10.1111/joim.13386.

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Streptococcus pneumoniae is a human pathogen that, despite the development of vaccines, continues to be an important cause of mortality and morbidity. We investigate the mechanisms of antibiotic resistance in this bacterium. On the one hand by identifying new therapeutic targets and on the other hand by investigating the molecular basis of the action of antibiotics already used in clinical practice (the fluoroquinolones levofloxacin and moxifloxacin) or not yet used (seconeolitsine). For this purpose, we used a multidisciplinary analysis involving genomics, transcriptomics and proteomics to understand the organization of the S. pneumoniae chromosome and the identification of the factors that stabilize this organization, including ncRNAs. Changes in the level of global supercoiling, either by inhibition of gyrase (decrease) or by inhibition of topoisomerase I (increase) alter the transcriptome. The modulated genes are located in domains, whose genes show specific functional characteristics. The aim is to identify new factors essential for S. pneumoniae physiology and to characterize transcriptional regulation in response to topological stress. In addition, RNA interference technology and CRISPR systems will be used as novel antibacterials. These studies will establish the bases for translational research aimed at the development of new therapeutic targets for the treatment of pneumococcal diseases.

Streptococcus pneumoniae is a human pathogen that, despite the development of vaccines, continues to be an important cause of mortality and morbidity. We investigate the mechanisms of antibiotic resistance in this bacterium. On the one hand by identifying new therapeutic targets and on the other hand by investigating the molecular basis of the action of antibiotics already used in clinical practice (the fluoroquinolones levofloxacin and moxifloxacin) or not yet used (seconeolitsine). For this purpose, we used a multidisciplinary analysis involving genomics, transcriptomics and proteomics to understand the organization of the S. pneumoniae chromosome and the identification of the factors that stabilize this organization, including ncRNAs. Changes in the level of global supercoiling, either by inhibition of gyrase (decrease) or by inhibition of topoisomerase I (increase) alter the transcriptome. The modulated genes are located in domains, whose genes show specific functional characteristics. The aim is to identify new factors essential for S. pneumoniae physiology and to characterize transcriptional regulation in response to topological stress. In addition, RNA interference technology and CRISPR systems will be used as novel antibacterials. These studies will establish the bases for translational research aimed at the development of new therapeutic targets for the treatment of pneumococcal diseases.

Content with Investigacion Genética Bacteriana .