نتایج جستجو برای: hpv16
تعداد نتایج: 2286 فیلتر نتایج به سال:
BACKGROUND Infection with cancer-linked human papillomavirus (HPV) types such as HPV type 16 (HPV16) is the most important risk factor in the development of cervical cancer. It has been shown that immunoglobulin G (IgG) antibody responses against HPV16 virus-like particles (VLPs) are specifically associated with genital HPV16 infection. PURPOSE The aim of this study was to determine the tempo...
We report that many histone modifications are unevenly distributed over the HPV16 genome in cervical cancer cells as well as in HPV16-immortalized keratinocytes. For example, H3K36me3 and H3K9Ac that are common in highly expressed cellular genes and over exons, were more common in the early than in the late region of the HPV16 genome. In contrast, H3K9me3, H4K20me3, H2BK5me1 and H4K16Ac were mo...
The human papillomavirus type 16 (HPV16) life cycle can be divided into an early stage in which the HPV16 genomic DNA is replicated, and a late stage in which the HPV16 structural proteins are synthesized and virions are produced. A strong coupling between the viral life cycle and the differentiation state of the infected cell is highly characteristic of all HPVs. The switch from the HPV16 earl...
Many aspects of the HPV life cycle have been characterized in cervical cell lines (W12, CIN612) and in HPV immortalized primary foreskin keratinocytes. There is now an epidemic of HPV positive oropharyngeal cancers (HPV16 is responsible for 80-90% of these); therefore increased understanding of the HPV16 life cycle in oral keratinocytes is a priority. To date there have been limited reports cha...
BACKGROUND The majority of human papillomavirus (HPV)-related oropharyngeal carcinomas (OPCs) are associated with HPV genotype 16; however, OPC can be associated with other high-risk non-HPV16 genotypes. METHODS This was a retrospective analysis of patients with high-risk non-HPV16 OPC treated at a single tertiary institution. Sociodemographic and clinical information was obtained by chart re...
Anogenital cancers and head and neck cancers are causally associated with infection by high-risk human papillomavirus (HPV). The mechanism by which high-risk HPVs contribute to oncogenesis is poorly understood. HPV16 encodes three genes (HPV16 E5, E6, and E7) that can transform cells when expressed independently. HPV16 E6 and E7 have well-described roles causing genomic instability and unregula...
HPV (Human papillomavirus) affects 600,000 people worldwide each year. Almost all cervical cancers are associated with a past infection. In particular, the positivity to high-risk type HPV16 is detected in most of invasive cancers. FDA has approved prophylactic vaccines that protect against new infections, but do not induce immunity those patients established infections or neoplasms. To date, n...
PURPOSE To characterize HPV16 E6- and E7-specific T-cell immunity in patients with high-grade squamous intraepithelial lesions (HSIL). EXPERIMENTAL DESIGN Peripheral blood mononuclear cells isolated from 38 patients with HPV16+ HSIL were used to determine the magnitude, breadth, and polarization of HPV16-specific T-cell responses by proliferation assays and cytokine assays. Furthermore, HSIL-...
زمینه و هدف: ویروس پاپیلومای انسانی (hpv) به عنوان عامل اصلی سرطان دهانه رحم، دومین سرطان شایع در میان زنان سراسر دنیا شناخته شده است. از این میان hpv های پر خطر بیشترین دخالت را در ایجاد این سرطان دارند. سرطان زایی این ویروس ها به وسیله آنکوپروتئین هایی نظیر e7 می باشد. یکی از روش های نوین به منظور مقابله با این سرطان بکارگیری dna واکسن های بیان کننده این آنتی ژن جهت تهیه واکسن های درمانی علیه...
HPV16 accounts for 50-70% of cervical cancer cases worldwide. Characterization of HPV16 variants previously indicated that they differ in risks for viral persistence, progression to cervical precancer and malignant cancer. The aim of this study was to examine the association of severity of disease with HPV16 variants identified in specimens (n = 281) obtained from a Cervical Pathology and Colpo...
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