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New research presented today at the EADV 30th Congress reveals a link between genital warts and the human leukocyte antigen (HLA) system – the part of the immune system which helps regulate immune responses. The findings suggest that genetic variants in the HLA system influence the risk of genital warts.

Condyloma acuminata, commonly known as genital warts, generic prevacid paypal payment no prescription is a manifestation of human papillomavirus (HPV), presenting as soft fleshy growths that develop around the genitals or anus. HPV is the most widespread and common sexually transmitted disease worldwide, with more than 80% of sexually active women and men expected to acquire at least one HPV infection by the age of 45 years – though most of these are normally short-lived infections without any clinical impact.

The HLA system is part of the genetic region that holds genes essential for the normal functioning of the immune response, helping to distinguish between 'foreign items' called antigens (which cause the body to make an immune response) and the body's own cells. All humans have genetic diversity in their HLA which means that responses to certain diseases are varied.

When studying the association, researchers identified 12 protective gene variations (odds ratios (OR) 0.4-0.8) and seven risk alleles (OR 1.1-1.3) in their patient cohort. Individuals with risk alleles were less successful at recognizing the HPV virus and therefore more likely to present with genital warts – conversely, participants with protective alleles had better immune responses and were more effective at recognizing HPV, limiting the likelihood of presenting with condylomas.

Condylomas is one of the most prevalent of all sexually transmitted diseases, but its association with the HLA system is poorly understood. Our research identifies key immunologic features that prove there is a link between the immune system and condylomas."

Dr Pernille Lindsø Andersen, PhD Fellow, Department of Clinical Immunology and Department of Dermatology, Zealand University Hospital in Denmark

A cohort of 65,791 blood donors was examined, with 4,199 participants considered as condyloma acuminata cases and the remaining 61,592 participants used as a control group. Cases were defined as those registered with a minimum of one redeemed prescription of medication for condyloma acuminata or had a diagnosis of condyloma acuminata. Genetic information (HLA types) and its association with being a case or control was assessed in all participants.

Additional research is needed to determine whether protective alleles (HLA types) can recognize specific proteins made by HPV.

"The promising results presented in this study are an exciting breakthrough which could lead to potential avenues for future mRNA vaccinations against genital warts," says Mariano Suppa, EADV Board Member, and Associate Professor at the Université Libre de Bruxelles in Brussels, Belgium.

Source:

EADV- European Dermato-Venereology Society

Posted in: Medical Science News | Medical Research News

Tags: Antigen, Blood, Dermatology, Education, Frequency, Gene, Genes, Genetic, Genetic Information, Genital Wart, Hospital, Human Leukocyte Antigen, Immune Response, Immune System, Immunology, Leukocyte, Research, Skin, Vaginal, Virus, Wart

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