Search results for "Papillomaviru"

DISTRIBUTION OF GENITAL HUMAN PAPILLOMAVIRUS IN SICILIAN MEN WITH AND WITHOUT CLINICAL MANIFESTATIONS

2016

Introduction: Infection Human Papillomavirus (HPV) is the cause of several disease in men and in women: genital warts, penile and cervical intraepithelial neoplasia, invasive penile carcinoma and cervical cancer. However, less is known about HPV infection and prevalence of HPV types in men. Materials and Methods: 820 genital samples of men (age 19-77; mean age: 36.7 ys) who had come to the Virology laboratory of the Department of Sciences for Health Promotion and Mother and Child Care (Policlinico, University of Palermo, Italy) were examined for HPV infection. The study included men with genital warts, men with atypical genital lesion, partners of HPV-positive women and asymptomatic men for…

Human papillomavirus infection in couples undergoing in vitro fertilization procedures: impact on reproductive outcomes.

2011

A prospective study was performed to assess the relationship between human papillomavirus (HPV) infection in 199 infertile couples and outcome of assisted reproductive technologies (ARTs). A highly statistically significant correlation between pregnancy loss rate (proportion of pregnancies detected by β-hCG that did not progress beyond 20 weeks) and positive HPV DNA testing in the male partner of infertile couples, compared with HPV negatives, was observed (66.7% vs. 15%).

2018

Oncogenic human papillomaviruses (HPV) are small DNA viruses that infect keratinocytes. After HPV binding to cell surface receptors, a cascade of molecular interactions mediates the infectious cellular internalization of virus particles. Aside from the virus itself, important molecular players involved in virus entry include the tetraspanin CD151 and the epidermal growth factor receptor (EGFR). To date, it is unknown how these components are coordinated in space and time. Here, we studied plasma membrane dynamics of CD151 and EGFR and the HPV16 capsid during the early phase of infection. We find that the proteinase ADAM17 activates the extracellular signal-regulated kinases (ERK1/2) pathway…

p53 mutations are common in human papillomavirus type 38-positive non-melanoma skin cancers

2004

Copyright © 2003 Elsevier Ireland Ltd. All rights reserved.

The vaccina

2018

Objective The aim of this study was to introduce the VaccinaTion & Hpv Knowledge (THinK) questionnaire to assess knowledge about human papillomavirus (HPV) and attitude to HPV-vaccination. Its reliability and validity was demonstrated in a sample of women living in Sicily (southern Italy). Methods A cross-sectional survey was conducted on a sample of 220 women at the “Paolo Giaccone” University Hospital in Palermo (Sicily), aged 18–61. Data were analyzed through Cronbach’s alpha and exploratory factor analysis, followed by a structural equation model with measurement component. The two-level data structure was explicitly considered. Results Three dimensions were found: “knowledge of HPV inf…

Chapter 14: HPV vaccine introduction in industrialized countries.

2006

Introduction of a vaccine requires the achievement of three initial milestones. These are licensure by a national control authority that determines the vaccine is safe and effective, development of recommendations for use by expert advisory bodies on immunization, and obtaining funding for vaccination. Once these milestones have been achieved, a successful vaccination program requires that a number of interlinked programmatic components be brought together in a coordinated fashion. These include vaccine purchase and supply, vaccination service delivery, high coverage rates, surveillance of the vaccination program, immunization finance policies and practices, and political will. Human papill…

Chapter 22: Assuring the quality, safety and efficacy of HPV vaccines: The scientific basis of regulatory expectations pre- and post-licensure

2006

The potential of human papillomavirus (HPV) vaccines will only be realized if the vaccine candidates under development prove to be safe and effective and can be consistently produced to define quality standards. Whilst the responsibility for delivering a safe and effective product rests with the vaccine producer, a vaccine requires a license to allow it to be placed on the market. Licensure is based on an evaluation of the safety and efficacy profile of a vaccine candidate by national regulatory authorities, ideally on the basis of internationally agreed, science-based specifications and procedures. For vaccines, these international specifications are developed by the World Health Organizat…

Sodium butyrate with UCN-01 has marked antitumour activity against cervical cancer cells.

2010

The effect of combining sodium butyrate (NaB), a histone deacetylase inhibitor, and 7-hydroxy-staurosporine (UCN-01) on cytotoxicity in human cervical carcinoma cells was evaluated.HeLa and CaSki cells were treated using NaB alone or in combination with staurosporine (STS) or its analog UCN-01. Cytotoxicity was determined by flow cytometry and morphological assays. Apoptotic pathways were characterized by Western blotting and immunostaining. CaSki cells were also xenografted into nude mice to assess the in vivo effects of NaB/UCN-01 combination.Treatment with NaB and STS or UCN-01 resulted in enhanced apoptosis of cancer cells. Apoptosis involved mitochondrial pathways and overexpression of…

[Vaccination against papillomavirus : arguments and evidence of effectiveness].

2020

Vaccination against papillomavirus: arguments and evidence of effectiveness. Vaccination against human papillomavirus is a major advance in the prevention of cervical cancer. Evidence of its effectiveness has accumulated over the past thirty years since basic research has demonstrated the ability of viral pseudoparticles to induce immune responses in animals. Large human clinical trials followed to demonstrate the safety and efficacy of vaccination against targeted HPV infections and their associated lesions. After its approval and marketing the vaccine efficacy was measured at the level of entire populations, confirming its effectiveness and medical interest. Today, models predict a possib…

Distinct immune evasion in APOBEC ‐enriched, HPV ‐negative HNSCC

2020

Immune checkpoint inhibition leads to response in some patients with head and neck squamous cell carcinoma (HNSCC). Robust biomarkers are lacking to date. We analyzed viral status, gene expression signatures, mutational load and mutational signatures in whole exome and RNA-sequencing data of the HNSCC TCGA dataset (n = 496) and a validation set (DKTK MASTER cohort, n = 10). Public single-cell gene expression data from 17 HPV-negative HNSCC were separately reanalyzed. APOBEC3-associated TCW motif mutations but not total single nucleotide variant burden were significantly associated with inflammation. This association was restricted to HPV-negative HNSCC samples. An APOBEC-enriched, HPV-negat…