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Human Papillomavirus

Research Lines

Content with Investigacion Virus del papiloma humano .

A) Effect of vaccination on the prevalence and distribution of Human Papillomavirus (HPV) genotypes. HPV vaccination was introduced in Spain in 2007-2008 for the prevention of cervical cancer and other cancers associated with these viral infections. The use of HPV vaccination is expected to lead to a decrease in vaccine genotypes in the population. However, it may also lead to an increase in other non-vaccine genotypes, similar to the change in vaccine serotypes observed in pneumococcal infections. This requires continuous surveillance of genotype frequency and data to monitor the efficacy of the HPV vaccination program.

B) Study of the distribution and dynamics of HPV infections in risk groups. There are some particularly vulnerable groups, some of them difficult to access (sex workers, transgender groups, etc.), in which HPV infections deserve special attention. The prevalence of HPV infection is especially high in people living with HIV and/or among men who have sex with men. Knowledge of the distribution and dynamics of infections is especially interesting in these groups, as they may help to improve current algorithms for the prevention of anogenital cancer.

C) Study of infection by HPV genotypes and their relationship with progression to neoplastic processes. The oncogenic capacity of some HPV genotypes and their involvement in the production of anogenital cancer is well known. In addition, there are other oncological processes, such as non-melanoma skin cancer, in which HPV could be implicated. Thus, members of the gamma-24 HPV species have recently been associated with skin cancer. It is to be hoped that the appearance of new genotypes and the performance of more extensive studies may lead to the identification of new associations between HPV and neoplastic processes.

D) Study of co-infections by different HPV genotypes. The presence of co-infections of different HPV genotypes is a very frequent finding, both in skin samples and in different mucous membranes. The great genetic diversity of HPV limits the ability of classical molecular methods to perform a comprehensive detection and study of the genotypes present. However, the use of massive sequencing makes it possible to eliminate some of these biases and to obtain more detailed information on the existing HPV populations, as well as to analyze interactions between the different genotypes.

E) Description of new HPV genotypes/variants. Currently at the International HPV Reference Center (Karolinska Institute, Sweden) more than 220 HPV genotypes are described, distributed in 5 different genera. However, improved molecular detection techniques, as well as the use of massive sequencing, are allowing this number to increase rapidly. The study of new genotypes and variants is essential for the validation and quality control of available diagnostic methods. Similarly, their characterization and the study of possible associations of HPV with pathologies other than those already known is a field of great interest for research.

Research projects

Content with Investigacion Virus del papiloma humano .

Título: Impact of vaccination against Human Papillomavirus in Spain: Studye of the distribution of genotypes and its application in surveillance. Principal Investigator: Horacio Gil. Starting/End dates: 2024-2026. Funding Entity: Acción Estratégica de Salud Intramural (AESI) del Instituto de Salud Carlos III. Project Reference: PI23CIII/00006.

Título: Effect of feminizing therapy on immune response in transgender women. Principal Investigator: Victor Manuel Sánchez Merino. Collaborating Investigator: Horacio Gil. Starting/End dates:2025-2027. Funding Entity: Acción Estratégica de Salud Intramural (AESI) del Instituto de Salud Carlos III. Project Reference: PI24CIII/00031.

Publications

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Vaccination with LytA, LytC, or Pce of Streptococcus pneumoniae Protects against Sepsis by Inducing IgGs That Activate the Complement System

Corsini B, Aguinagalde L, Ruiz S, Domenech M, Yuste J. Vaccination with LytA, LytC, or Pce of Streptococcus pneumoniae Protects against Sepsis by Inducing IgGs That Activate the Complement System. Vaccines. 2021 Feb 23;9(2):186.

PUBMED DOI

Physiologic and transcriptomic effects triggered by overexpression of wild type and mutant DNA topoisomerase I in Streptococcus pneumoniae

García-López M, Hernández P, Megias D, Ferrándiz MJ, de la Campa AG. Int J Mol Sci. 2023; 24:15800.

PUBMED DOI

StaR Is a positive regulator of topoisomerase I activity involved in supercoiling maintenance in Streptococcus pneumoniae

de Vasconcelos Junior AA, Tirado-Vélez JM, Martín-Galiano AJ, Megias D, Ferrándiz MJ, Hernández P, Amblar M, de la Campa AG. Int J Mol Sci. 2023; 24:5973.

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Role of PatAB transporter in efflux of levofloxacin in Streptococcus pneumoniae

Amblar M, Zaballos A, de la Campa AG. Antibiotics. 2022; 17:1837.

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Seconeolitsine, the novel inhibitor of DNA topoisomerase I, protects against invasive pneumococcal disease caused by fluoroquinolone-resistant strains.

Tirado-Vélez JM, Carreño D, Sevillano D, Alou L, Yuste J, de la Campa AG. Antibiotics 2021; 10:573.

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Genome-wide proximity between RNA polymerase and DNA topoisomerase I supports transcription in Streptococcus pneumoniae

Ferrándiz M-J, Hernández P, de la Campa AG. PLoS Genet. 2021; 17:e1009542.

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A Small Non-Coding RNA Modulates Expression of Pilus-1 Type in Streptococcus pneumoniae

Acebo P, Herranz C, Bernal-Espenberger L, Gómez-Sanz A, Terron MC, Luque D and Amblar M. Microorganisms. 2021; 9:1883.

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Reactive oxygen species production is a major factor directing the post-antibiotic effect of fluoroquinolones in Streptococcus pneumoniae

García MT, Valenzuela MV, Ferrándiz MJ, de la Campa AG. Antimicrob Agents Chemother. 2019; 63:e00737-19.

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HU of Streptococcus pneumoniae is essential for the preservation of DNA supercoiling

Ferrándiz MJ, Carreño D, Ayora S, de la Campa AG. Front Microbiol. 9:493 (2018).

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Boldine-derived alkaloids inhibit the activity of DNA topoisomerase I and growth of Mycobacterium tuberculosis.

García MT, Carreño D, Tirado-Vélez JM, Ferrándiz MJ, Rodrigues L, Gracia B, Amblar M, Ainsa JA*, de la Campa AG. Front Microbiol. 9:493 (2018).

PUBMED DOI

Absence of tmRNA has a protective effect against fluoroquinolones in Streptococcus pneumoniae

Brito L, Wilton J, Ferrándiz MJ, Gómez-Sanz A, de la Campa AG, Amblar M. Front. Microbiol. 7:2164 (2017).

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Bridging chromosomal architecture and pathophysiology of Streptococcus pneumoniae

Martín-Galiano AJ, Ferrándiz MJ, de la Campa AG. Genome Biol Evol. 2017; 9:350-361.

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Upregulation of the PatAB transporter confers fluoroquinolone resistance to Streptococcus pseudopneumoniae

Alvarado M, Martín-Galiano AJ, Ferrándiz MJ, Zaballos A, de la Campa AG. Front Microbiol. 8:2074 (2017).

PUBMED DOI

A novel typing method for Streptococcus pneumoniae using selected surface proteins

Domenech A, Moreno J, Ardanuy C, Liñares J, de la Campa AG, Martin-Galiano AJ. Front Microbiol. 2016; 31;7:420.

PUBMED DOI

An increase in negative supercoiling in bacteria reveals topology-reacting gene clusters and a homeostatic response mediated by the DNA topoisomerase I gene

Ferrándiz MJ, Martín-Galiano AJ, Arnanz C, Camacho-Soguero I, Tirado-Vélez JM, de la Campa AG. 2016. Nucl Acids Res. 44:7292-7303 (2016).

PUBMED DOI

Reactive oxygen species contribute to the bactericidal effects of the fluoroquinolone moxifloxacin in Streptococcus pneumoniae

Ferrándiz MJ, Martín-Galiano AJ, Arnanz C, Zimmerman T, de la Campa AG. Antimicrob Agents Chemother. 60:409-417 (2016).

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The fluoroquinolone levofloxacin triggers the transcriptional activation of iron transport genes that contribute to cell death in Streptococcus pneumoniae.

Ferrándiz MJ, de la Campa AG. Antimicrob Agents Chemother. 58:247-257 (2014)

PUBMED DOI

Fluoroquinolone-resistant pneumococci: dynamics of serotypes and clones in Spain in 2012 compared with those from 2002 and 2006

Domenech A, Tirado-Vélez JM, Fenoll A, Ardanuy C, Yuste J, Liñares J, de la Campa AG. Antimicrob Agents Chemother. 58:2393-2399 (2014).

PUBMED DOI

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

Tyrosine kinase 2 modulates splenic B cells through type I IFN and TLR7 signaling.

Bodega-Mayor I, Delgado-Wicke P, Arrabal A, Alegría-Carrasco E, Nicolao-Gómez A, Jaén-Castaño M, Espadas C, Dopazo A, Martín-Gayo E, Gaspar ML, de Andrés B, Fernández-Ruiz E. Cell Mol Life Sci. 2024 Apr 29;81(1):199.

PUBMED DOI

Content with Investigacion Virus del papiloma humano .

List of staff

Additional Information

Diagnosis/Reference: detection and genotyping of the Human Papillomavirus, tests offered at https://cnm-laboratorios.isciii.es/.

For additional studies contact the laboratory. 

• Molecular epidemiology of infections caused by HPV in the general population and in different risk groups. 

• Surveillance of the distribution of genotypes in the population to monitor the effectiveness of vaccination against HPV. 

• Development of new methodology for the diagnosis and characterization of infections caused by HPV.

Diagnosis/Reference: detection and genotyping of the Human Papillomavirus, tests offered at https://cnm-laboratorios.isciii.es/.

For additional studies contact the laboratory. 

• Molecular epidemiology of infections caused by HPV in the general population and in different risk groups. 

• Surveillance of the distribution of genotypes in the population to monitor the effectiveness of vaccination against HPV. 

• Development of new methodology for the diagnosis and characterization of infections caused by HPV.

Content with Investigacion Virus del papiloma humano .