We protect your health through science
Investigation
Bacterial Genetics
Publications
Proline-Rich Hypervariable Region of Hepatitis E Virus: Arranging the Disorder.
• Muñoz-Chimeno M, Cenalmor A, García-Lugo MA, Hernandez M, David Rodríguez-Lazaro D, Avellón A. Proline-Rich Hypervariable Region of Hepatitis E Virus: Arranging the Disorder. Microorganisms. 2020 Sep 15;8(9):1417.
PUBMED DOIClinical performance of Determine HBsAg 2 rapid test for Hepatitis B detection.
• Avellón A, Ala A, Diaz A, Domingo D, González R, Hidalgo L, Kooner L, Loganathan S, Martin D, McPherson S, Muñoz-Chimeno M, Ryder S, Gabrielle Slapak G, Ryan P, Valbuena M, Kennedy PT. Clinical performance of Determine HBsAg 2 rapid test for Hepatitis B detection. J Med Virol. 2020 Apr 9.
PUBMED DOIHepatitis E virus genotype 3 microbiological surveillance by the Spanish Reference Laboratory: geographic distribution and phylogenetic analysis of subtypes from 2009 to 2019.
• Muñoz-Chimeno M, Bartúren S, García-Lugo MA, Morago L, Rodríguez A, Galán JC, Pérez-Rivilla A, Rodríguez M, Millán R, Del Álamo M, Alonso R, Molina L, Aguinaga A, Avellón A. Hepatitis E virus genotype 3 microbiological surveillance by the Spanish Reference Laboratory: geographic distribution and phylogenetic analysis of subtypes from 2009 to 2019. Euro Surveill. 2022 Jun;27(23):2100542.
PUBMED DOIHepatitis E virus: Assessment of the epidemiological situation in humans in Europe
• Adlhoch C, Avellón A, Baylis SA, Ciccaglione AR, Couturier E, de Sousa R, Epštein J, Ethelberg S, Faber M, Fehér A, Ijaz S, Lange H, Manďáková Z, Mellou K, Mozalevskis A, Rimhanen-Finne R, Rizzi V, Said B, Sundqvist L, Thornton L, Tosti ME, van Pelt W, Aspinall E, Domanovic D, Severi E, Takkinen J, Dalton HR. Hepatitis E virus: Assessment of the epidemiological situation in humans in Europe, 2014/15. J Clin Virol. 2016 Sep;82:9-16.
PUBMED DOIEmergence of linezolid-resistant coagulase-negative staphylococci in an intensive care unit
2. Emergence of linezolid-resistant coagulase-negative staphylococci in an intensive care unit. Balandin B, Lobo B, Orden B, Román F, García E, Martínez R, Valdivia M, Ortega A, Fernández I, Galdos P. Infect Dis (Lond). 2016;48(5):343-9.
PUBMED DOIHorizontal 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.
3. 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.
PUBMED DOIEmergence of cfr-Mediated Linezolid Resistance in a Methicillin-Resistant Staphylococcus aureus Epidemic Clone Isolated from Patients with Cystic Fibrosis.
4. Emergence of cfr-Mediated Linezolid Resistance in a Methicillin-Resistant Staphylococcus aureus Epidemic Clone Isolated from Patients with Cystic Fibrosis. de Dios Caballero J, Pastor MD, Vindel A, Máiz L, Yagüe G, Salvador C, Cobo M, Morosini MI, del Campo R, Cantón R; GEIFQ Study Group. Antimicrob Agents Chemother. 2015 Dec 14;60(3):1878-82.
PUBMED DOIThe dynamic changes of dominant clones of Staphylococcus aureus causing bloodstream infections in the European region: results of a second structured survey.
5. The dynamic changes of dominant clones of Staphylococcus aureus causing bloodstream infections in the European region: results of a second structured survey. Grundmann H, Schouls LM, Aanensen DM, Pluister GN, Tami A, Chlebowicz M, Glasner C, Sabat AJ, Weist K, Heuer O, Friedrich AW; ESCMID Study Group on Molecular Epidemiological Markers; European Staphylococcal Reference Laboratory Working Group. Euro Surveill. 2014 Dec 11;19(49).
PUBMED DOIContent with Investigacion .
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Isabel de Fuentes Corripio
Jefa de Unidad, Investigador Titular OPIS
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David Carmena Jiménez
Investigador Doctor distinguido
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Aly Salimo Omar Muadica
Becario pre-doctoral
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Marta Hernández de Mingo
Colaborador I+D+I
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Begoña Bailo Cardoso
Técnico de Laboratorio
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María Aguilera
Técnico de laboratorio
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David González Barrio
Investigador contratado
List of staff
Additional Information
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.