Epigenome-wide analysis of common warts reveals aberrant promoter methylation.

Epigenome-wide analysis of common warts reveals aberrant promoter methylation. Int J Med Sci. 2020;17(2):191-206 Authors: Al-Eitan LN, Alghamdi MA, Tarkhan AH, Al-Qarqaz FA Abstract Epigenetic alteration of host DNA is a common occurrence in both low- and high-risk human papillomavirus (HPV) infection. Although changes in promoter methylation have been widely studied in HPV-associated cancers, they have not been the subject of much investigation in HPV-induced warts, which are a temporary manifestation of HPV infection. The present study sought to examine the differences in promoter methylation between warts and normal skin. To achieve this, DNA was extracted from 24 paired wart and normal skin samples and inputted into the Infinium MethylationEPIC BeadChip microarray. Differential methylation analysis revealed a clear pattern of hyper- and hypomethylation in warts compared to normal skin, and the most differentially methylated promoters were found within the EIF3EP2, CYSLTR1, C10orf99, KRT6B, LAMA4, and H3F3B genes as well as the C9orf30 pseudogene. Moreover, pathway analysis showed that the H3F3A, CDKN1A, and MAPK13 genes were the most common regulators among the most differentially methylated promoters. Since the tissue samples were excised from active warts, however, this differential methylation could either be a cellular response to HPV infection or an HPV-driven process to establish the wart and/or promote disease progression. Conclusively, it is a...
Source: International Journal of Medical Sciences - Category: Biomedical Science Tags: Int J Med Sci Source Type: research

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CONCLUSION: The total fraction of malignant and pre-malignant lesions attributed to Human papillomavirus genotypes contained in the nonavalent vaccine is significant in both women and men, which turns this vaccine into a great asset in terms of Public Health. PMID: 32130098 [PubMed - as supplied by publisher]
Source: Acta Medica Portuguesa - Category: General Medicine Tags: Acta Med Port Source Type: research
Publication date: Available online 18 February 2020Source: Biosensors and BioelectronicsAuthor(s): Ziqing Yu, Weiyuan Lyu, Mengchao Yu, Qian Wang, Haijun Qu, Rustem F. Ismagilov, Xu Han, Dongmei Lai, Feng ShenAbstractHuman papillomavirus (HPV) is one of the most common sexually transmitted infections worldwide, and persistent HPV infection can cause warts and even cancer. Nucleic acid analysis of HPV viral DNA can be very informative for the diagnosis and monitoring of HPV. Digital nucleic acid analysis, such as digital PCR and digital isothermal amplification, can provide sensitive detection and precise quantification of ...
Source: Biosensors and Bioelectronics - Category: Biotechnology Source Type: research
Human papillomavirus (HPV) is the most common sexually transmitted virus. The high-risk HPV types (i.e., HPV16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59) are considered to be the main etiological agents of genital tract cancers, such as cervical, vulvar, vaginal, penile, and anal cancers, and of a subset of head and neck cancers. Three prophylactic HPV vaccines are available that are bivalent (vs. HPV16, 18), tetravalent (vs. HPV6, 11, 16, 18), and non-avalent (vs. HPV6, 11, 16, 18, 31, 33,45, 52, 58). All of these vaccines are based on recombinant DNA technology, and they are prepared from the purified L1 protein that s...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Abstract HPV is still the most common sexually transmitted infection, leading to the onset of many disorders while causing an increase in direct and indirect health costs. High Risk (HR) HPV is the primary cause of invasive cervical cancer and contributes significantly to the development of anogenital and oropharyngeal cancers. The introduction of universal HPV vaccination has led to a significant reduction in vaccine-targeted HPV infections, cross-protective genotypes, precancerous lesions and anogenital warts. Despite the several limitations of HPV vaccination programs, including vaccine type specificity, differ...
Source: Current Pharmaceutical Design - Category: Drugs & Pharmacology Authors: Tags: Curr Pharm Des Source Type: research
The objective of the current article is to promote a literature revision of the relationship between the prevention of intraepithelial neoplasms (PeIN) and invasive penile cancer, and human papillomavirus (HPV) vaccination, aiming to enumerate the pros and cons of immunization. Recent findings The immunization against the HPV is sufficiently safe and many countries have incorporated the vaccine to their immunization calendar. Compared with men, the sampling size and the evidence quality of scientific researches among the female population are more robust. Some randomized and nonrandomized studies suggest that vaccinatio...
Source: Current Opinion in Urology - Category: Urology & Nephrology Tags: PENIS CANCER: Edited by Oscar R. Brouwer and Daher C. Chade Source Type: research
Vaccination against HPV seems to be a good approach for prevention of cervical cancer and genital warts. But in Iran we are confronted with lack of evidence for its cost-effectiveness whereas its consumption is dramatically increasing. This was a cross- sectional study. We used a questionnaire included 5 sections as follows; Patients demographic information, Patients medical history, Pregnancy and lactation considerations, Gardasil prescription characteristics and HPV infection characteristics. Prescriber with adherence to guideline were defined as those prescribing Gardasil for correct age range and indication with accura...
Source: Iranian Journal of Pharmaceutical Research - Category: Drugs & Pharmacology Source Type: research
Conclusion: The current HPV vaccination program is predicted to be cost saving. Extending vaccination to older ages is predicted to produce small additional health benefits and result in substantially higher incremental cost-effectiveness ratios than the current recommendation. Primary Funding Source: Centers for Disease Control and Prevention. PMID: 31816629 [PubMed - as supplied by publisher]
Source: Annals of Internal Medicine - Category: Internal Medicine Authors: Tags: Ann Intern Med Source Type: research
This study aimed to determine the prevalence of HPV genotypes in genital warts among women in Harare, Zimbabwe. Women aged 18-45 years attending gynaecology and genitourinary clinics with a clinical diagnosis of genital-warts were recruited. HPV-DNA was extracted from tissue biopsies. HPV-DNA testing and typing was done by Southern Dot Blot Hybridisation. A hundred samples from 100 women were analysed. Median age of participants was 30.3 years (range 18-45 years). Seventy-eight percent of participants were HIV infected. HPV prevalence was 98%. Low risk genotypes predominated at 86% prevalence. The most...
Source: Journal of Obstetrics and Gynaecology - Category: OBGYN Tags: J Obstet Gynaecol Source Type: research
CONCLUSIONS: The immunogenicity of two-dose and three-dose HPV vaccine schedules, measured using antibody responses in young females, is comparable. The quadrivalent vaccine probably reduces external genital lesions and anogenital warts in males compared with control. The nonavalent and quadrivalent vaccines offer similar protection against a combined outcome of cervical, vaginal, and vulval precancer lesions or cancer. In people living with HIV, both the bivalent and quadrivalent HPV vaccines result in high antibody responses. For all comparisons of alternative HPV vaccine schedules, the certainty of the body of evidence ...
Source: Cochrane Database of Systematic Reviews - Category: General Medicine Authors: Tags: Cochrane Database Syst Rev Source Type: research
New evidence published in the Cochrane Library today provides further information on the benefits and harms of different human papillomavirus (HPV) vaccines and vaccine schedules in young women and men.HPV is the most common viral infection of the reproductive tract in both women and men globally (WHO 2017). Most people who have sexual contact will be exposed to HPV at some point in their life. In most people, their own immune system will clear the HPV infection.HPV infection can sometimes persist if the immune system does not clear the virus. Persistent infection with some ‘high-risk’ strains of HPV can lead t...
Source: Cochrane News and Events - Category: Information Technology Authors: Source Type: news
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