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Investigation
Viral Pathogenesis and Immunity
Research Lines
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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
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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
The role of respiratory viruses in children with humoral immunodeficiency on immunoglobulin replacement therapy
Benavides-Nieto M, Méndez-Echevarría A, Del Rosal T, García-García ML, Casas I, Pozo F, de la Serna O, Lopez-Granados E, Rodriguez-Pena R, Calvo C. The role of respiratory viruses in children with humoral immunodeficiency on immunoglobulin replacement therapy. Pediatr Pulmonol. 2019 Feb;54(2):194-199. Indice Impacto: 3,157. Revista en Q1.
PUBMED DOISeasonality and geographical spread of respiratory syncytial virus epidemics in 15 European countries, 2010 to 2016.
Broberg EK, Waris M, Johansen K, Snacken R, Penttinen P; European Influenza Surveillance Network. Seasonality and geographical spread of respiratory syncytial virus epidemics in 15 European countries, 2010 to 2016. Euro Surveill. 2018 Feb;23(5). Indice Impacto: 5,983. Revista en Decil 1
PUBMED DOIHuman Metapneumovirus infections in hospitalized children and comparison with other respiratory viruses in 2005-2014 prospective study.
García-García ML, Calvo C, Rey C, Díaz B, Molinero MD, Pozo F, Casas I. Human Metapneumovirus infections in hospitalized children and comparison with other respiratory viruses in 2005-2014 prospective study. PLoS One. 2017 Mar 16;12(3):e0173504. doi: 10.1371/journal.pone.0173504. eCollection 2017. Indice Impacto: 2,766. Revista en Q1.
PUBMED DOIRespiratory Infections by Enterovirus D68 in Outpatients and Inpatients Spanish Children
Calvo C, Cuevas MT, Pozo F, García-García ML, Molinero M, Calderón A, Gonzalez-Esguevillas M, Pérez-Sautu U, Casas I. Respiratory Infections by Enterovirus D68 in Outpatients and Inpatients Spanish Children. Pediatr Infect Dis J. 2016 Jan;35(1):45-9.
PUBMED DOIClinical and Virologic Characteristics of Early and Moderate Preterm Infants Readmitted with Viral Respiratory Infections.
García-Garcia ML, González-Carrasco E, Quevedo S, Muñoz C, Sánchez-Escudero V, Pozo F, Casas I, Calvo C. Clinical and Virologic Characteristics of Early and Moderate Preterm Infants Readmitted with Viral Respiratory Infections. Pediatr Infect Dis J. 2015 Jul;34(7):693-9. Indice Impacto: 2,587. Revista en Q1
PUBMED DOIEight Year Prospective Study of Adenoviruses Infections in Hospitalized Children. Comparison with Other Respiratory Viruses.
Calvo C, García-García ML, Sanchez-Dehesa R, Román C, Tabares A, Pozo F, Casas I. Eight Year Prospective Study of Adenoviruses Infections in Hospitalized Children. Comparison with Other Respiratory Viruses. PLoS One. 2015 Jul 6;10(7):e0132162. eCollection 2015. Indice Impacto: 3,057. Revista en Q1
PUBMED DOIInfluenza vaccine effectiveness in Spain 2013/14: subtype-specific early estimates using the cycEVA study
Jiménez-Jorge S, Pozo F, de Mateo S, Delgado-Sanz C, Casas I, García-Cenoz M, Castilla J, Sancho R, Etxebarriarteun-Aranzabal L, Quinones C, Martínez E, Vega T, Garcia A, Giménez J, Vanrell JM, Castrillejo D, Larrauri A, on behalf of the Spanish Influenza Sentinel Surveillance System (SISS). Influenza vaccine effectiveness in Spain 2013/14: subtype-specific early estimates using the cycEVA study. Euro Surveill. 2014 Mar 6;19(9). Indice Impacto: 5,722. Revista en Q1.
PUBMED DOIY155H amino acid substitution in influenza A(H1N1)pdm09 viruses does not confer a phenotype of reduced susceptibility to neuraminidase inhibitors
Perez-Sautu U, Pozo F, Cuesta I, Monzon S, Calderon A, Gonzalez M, Molinero M, Lopez-Miragaya I, Rey S, Cañizares A, Rodriguez G, Gonzalez-Velasco C, Lackenby A, Casas I. Y155H amino acid substitution in influenza A(H1N1)pdm09 viruses does not confer a phenotype of reduced susceptibility to neuraminidase inhibitors. Euro Surveill. 2014 Jul 10;19(27):14-20. Indice Impacto: 5,722. Revista en Q1
PUBMED DOIContent with Investigacion .
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Horacio Gil Gil
Research Scientist
ORCID code: 0000-0002-7114-6686
Degree in Veterinary Medicine in 1995 and PhD in Veterinary Medicine in 2002 from the University of Zaragoza. He did his PhD thesis at NEIKER Tecknalia (Derio, Vizcaya) and the National Center for Microbiology of Instituto de Salud Carlos III (CNM-ISCIII, Majadahonda, Madrid) on the biological cycle of Lyme disease in the Basque Country. After that, he developed his postdoctoral training in different aspects of the pathogenesis of tularemia at the Center for Infectious Diseases, Stony Brook University, New York (USA) for 3 years. In December 2005, he joined the Reference and Research Laboratory in Special Pathogens of the CNM-ISCIII where he developed diagnostic, reference and research activities, in Bartonella, Leptospira and pathogens of interest in bioterrorism. Between 2014-2016 he participated in the European Program for the Training of Microbiologists in Public Health (EUPHEM), organized by the European Centre for Disease Prevention and Control. During this program, he participated in an international mission for the investigation of a cholera outbreak in Ghana, proposed by the Bernhard Nocht Institute for Tropical Diseases in Hamburg (Germany). In December 2016, he worked as a laboratory consultant for the World Health Organization at their office in Phnom Penh (Cambodia). Subsequently, he worked one year with Médecins Sans Frontières as director and quality manager of the TB laboratory in Nukus (Uzbekistan).
In 2019, he joined the HIV Variability and Biology Unit at CNM-ISCIII, where he developed different reference and research activities, including his contribution to the molecular epidemiological surveillance of HIV-1 in Spain and the study of HIV-1 antiretroviral resistance. Since September 2022 he has been leading the Human Papillomavirus Unit at the CNM-ISCIII. -
Alicia Inés García Señán
Predoctoral Student UNED
Degree in Pharmacy in 2013 from the Complutense University of Madrid. She completed specialized health training in Microbiology and Parasitology at the Complejo Asistencial Universitario de Salamanca (2014-2018). During this period he studied a master's degree in Tropical Diseases at the University of Salamanca (2016). She has developed her professional activity as a clinical microbiologist at the Hospital de Santa Bárbara (Soria) (2018), Hospital Universitario Vall d'Hebrón (Barcelona) (2019-2022), and Hospital Central de la Defensa (Gómez Ulla) C.S.V.E, since 2022. In September 2024 she has started PhD studies at the Human Papillomavirus Unit of the CNM-ISCIII.
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Manuela Rodríguez Vargas
Técnico de Laboratorio
List of staff
Additional Information
The activity of this unit focuses on the development and clinical validation of point-of-care diagnostic methodology against liver viruses based on an emerging field, nanotechnology, a line of research that is developed in collaboration with BioAssays SL. Likewise, this unit focuses on delving into the immuno-virological mechanisms underlying viral infections and coinfections with other microorganisms and their influence on the host through a comprehensive approach to laboratory techniques.
One of the main lines of research involves the study of the coinfection of viral hepatitis with the Human Immunodeficiency Virus (HIV), evaluating the impact of coinfection and elimination of hepatitis C on the HIV reservoir, as well as its impact on virus-induced senescence, among others through the use of “omic” technologies.
Our group leads the Multidisciplinary HIV/Hepatitis Coinfection Group (COVIHEP), and maintains collaborations with national and international research groups of excellence, facilitating greater harmonization and quality in the biomedical research carried out. On the other hand, Dr. Briz maintains close collaboration with private companies, promoting intersectoral alliances that represent a competitive advantage.
The activity of this unit focuses on the development and clinical validation of point-of-care diagnostic methodology against liver viruses based on an emerging field, nanotechnology, a line of research that is developed in collaboration with BioAssays SL. Likewise, this unit focuses on delving into the immuno-virological mechanisms underlying viral infections and coinfections with other microorganisms and their influence on the host through a comprehensive approach to laboratory techniques.
One of the main lines of research involves the study of the coinfection of viral hepatitis with the Human Immunodeficiency Virus (HIV), evaluating the impact of coinfection and elimination of hepatitis C on the HIV reservoir, as well as its impact on virus-induced senescence, among others through the use of “omic” technologies.
Our group leads the Multidisciplinary HIV/Hepatitis Coinfection Group (COVIHEP), and maintains collaborations with national and international research groups of excellence, facilitating greater harmonization and quality in the biomedical research carried out. On the other hand, Dr. Briz maintains close collaboration with private companies, promoting intersectoral alliances that represent a competitive advantage.