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Hpv DNA vaccine

Shing Cheng Tan, Mohd Pazudin Ismail, Daniel Roza Duski, Nor Hayati Othman, Ravindran Ankathil
Information on the prevalence and type distribution of HPV among Malaysian women is currently limited. This study therefore aimed to provide an updated estimate on the prevalence and type distribution of HPV among Malaysian women with and without cervical cancer. Total DNA was isolated from the cervical cell specimens of 185 histopathologically-confirmed cervical cancer patients and 209 cancer-free healthy females who were tested negative in a recent Pap test. Viral-specific DNA was subsequently amplified with biotinylated primers and hybridized to HPV type-specific probes via a proprietary "flow-through hybridization" process for determination of HPV genotype...
February 27, 2018: Bioscience Reports
Marcelo Nazário Cordeiro, Rita de Cássia Pereira de Lima, Francesca Paolini, Alanne Rayssa da Silva Melo, Ana Paula Ferreira Campos, Aldo Venuti, Antonio Carlos de Freitas
Cervical cancer and cervical intraepithelial neoplasia (CIN) are well-known outcomes of a human papillomavirus (HPV) infection. Viral oncogenes expressions like E6, E7, and, recently recognized E5, lead to HPV-related malignant progression. Although HPV prevention by powerful vaccines against most frequent and oncogenic genotypes is feasible, current treatment against cervical neoplasia is distant from an ideal one. In addition, late diagnosis is commonly associated with a poor prognosis. On top of that, radiotherapy, chemotherapy, or surgery are less effective in high-grade lesions...
February 23, 2018: Expert Review of Anticancer Therapy
Michael Daugherty, Timothy Byler
INTRODUCTION: Human papillomavirus (HPV) is a common sexually transmitted infection in the US that can lead to both malignant (high risk) and benign (low risk) findings. These low risk findings include both genital condyloma, anal warts, and adult or juvenile papillomatosis, which are directly attributable to subtypes HPV 6 and HPV 11. We aim to estimate the prevalence of genital wart infections in males in the US population using a nationwide sample. METHODS: The NHANES database was queried for all men 18-59 years old during the years 2013-2014...
November 16, 2017: Sexually Transmitted Diseases
Jean-Luc Brun, José Rajaonarison, Nicolas Nocart, Laura Hoarau, Stéphanie Brun, Isabelle Garrigue
Targeted immunotherapy of high-grade cervical intra-epithelial neoplasia (CIN) has been developed as an alternative to conization, to preserve future reproductive outcomes and avoid human papillomavirus (HPV) persistence. The objectives of the review are to present drugs according to their process of development and to examine their potential future use. A search for key words associated with CIN and targeted immunotherapy was carried out in the Cochrane library, Pubmed, Embase, and from 1990 to 2016...
February 2018: Molecular and Clinical Oncology
Carina Eklund, Ola Forslund, Keng-Ling Wallin, Joakim Dillner
BACKGROUND: Accurate and internationally comparable human papillomavirus (HPV) DNA detection and typing services are essential for HPV vaccine research and surveillance. OBJECTIVES: This study assessed the proficiency of different HPV typing services offered routinely in laboratories worldwide. STUDY DESIGN: The HPV Laboratory Network (LabNet) has designed international proficiency panels that can be regularly issued. The HPV genotyping proficiency panels of 2013 and 2014 contained 43 and 41 coded samples, respectively, composed of purified plasmids of sixteen HPV types (HPV 6, 11, 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, 68a and 68b) and 3 extraction controls...
February 9, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
Lauren G Johnson, Allison Armstrong, Caroline M Joyce, Anne M Teitelman, Alison M Buttenheim
BACKGROUND: Developed countries, such as the USA, have achieved significant decreases in cervical cancer burden since the introduction of Pap smear-based programs in the 1960s. Due to implementation barriers and limited resources, many countries in sub-Saharan Africa (SSA) have been unable to attain such reductions. The purpose of this review is to evaluate implementation strategies used to improve the uptake and sustainability of cervical cancer prevention programs in SSA. METHODS: A reviewer (LJ) independently searched PubMed, Ovid/MEDLINE, Scopus, and Web of Science databases for relevant articles with the following search limits: English language, peer reviewed, and published between 1996 and 2017...
February 9, 2018: Implementation Science: IS
Farzane Jamdar, Farah Farzaneh, Fariba Navidpour, Sarang Younesi, Payam Balvayeh, Maryamsadat Hosseini, Robabeh Ghodssi-Ghasemabadi
Background: Persistent infection with High Risk Human Papillomavirus (HR HPV) typesplaysamajor role in the development of cervical cancer. Therefore, the detection of HR HPV types is an essential part of cervical cancer screening. The aim of this study was to estimate the prevalence of HR HPV infection among healthy women undergoing routine cervical cancer screening in Iran. Methods: In this cross-sectional study,the results of HPV DNA typing in 2453 normal Iranian womenwhowere referred for routine cervical cancer screening from September 2015 to March 2017 were analyzed...
2018: Infectious Agents and Cancer
Daniel Boda, Anca Oana Docea, Daniela Calina, Mihaela Adriana Ilie, Constantin Caruntu, Sabina Zurac, Monica Neagu, Carolina Constantin, Daciana Elena Branisteanu, Vlad Voiculescu, Charalampos Mamoulakis, George Tzanakakis, Demetrios A Spandidos, Nikolaos Drakoulis, Aristides M Tsatsakis
Human papilloma viruses (HPV) are a small group of non‑enveloped viruses belonging to the Papillomaviridae family with strong similarities to polyoma viruses. The viral particles consist of a genome in the form of a circular double‑stranded DNA, encompassing eight open reading frames, as well as a non‑enveloped icosahedral capsid. HPV infection is considered the most common sexually transmitted disease in both sexes and is strongly implicated in the pathogenesis of different types of cancer. 'High‑risk' mucosal HPV types, predominantly types 16, 18, 31, 33 and 35, are associated with most cervical, penile, vulvar, vaginal, anal, oropharyngeal cancers and pre‑cancers...
January 29, 2018: International Journal of Oncology
Kumar S Nadhan, Mary Larijani, James Abbott, Alden M Doyle, Anthony W Linfante, Christina Lee Chung
Importance: Squamous cell carcinoma (SCC) is the most common skin cancer diagnosed in solid organ transplant recipients (OTRs) and confers significant mortality. The development of SCC in the genital region is elevated in nonwhite OTRs. Viral induction, specifically human papillomavirus (HPV), is hypothesized to play a role in the pathophysiology of these lesions. Objective: To assess the prevalence and types of genital lesions observed in OTRs. Design, Setting, and Participants: This retrospective review included 496 OTRs who underwent full skin examination from November 1, 2011, to April 28, 2017, at an academic referral center...
January 31, 2018: JAMA Dermatology
Amir Rad, Sveinung Wergeland Sørbye, Greta Dreyer, Siri Hovland, Bente Marie Falang, Melanie Louw, Finn Egil Skjeldestad
Accurate identification of human papillomavirus (HPV)-types in cervical cancer tissue may be important for tailoring tests for primary screening and types to be included in a vaccine. The aim of this study was to compare test-performance of a 45-type HPV deoxyribonucleic acid (DNA)-test with a 9-type HPV messenger ribonucleic acid (mRNA)-test in cervical cancer tissues.In a case-series design 188 women with diagnosed cervical cancer during the period January 2008 to July 1, 2011 at the Gynaecological Oncology Unit, University of Pretoria, South Africa were recruited to the study...
November 2017: Medicine (Baltimore)
Antoine Adenis, Valentin Dufit, Maylis Douine, Jerome Ponty, Laure Bianco, Fatiha Najioullah, Odile Kilié, Dominique Catherine, Nadia Thomas, Jean Luc Deshayes, Paul Brousse, Gabriel Carles, Claire Grenier, Vincent Lacoste, Vincent Molinie, Raymond Cesaire, Mathieu Nacher
BACKGROUND: Cervical cancer prevention using cervical cytology is insufficiently sensitive, a significant proportion of HPV-infected women having normal cytology. The objective of the present study was to try to identify factors associated with abnormal cytology in HPV-infected women living in remote areas of French Guiana. METHODS: A study was conducted in women aged 20-65 years having HPV infections confirmed by HPV DNA detection using the GREINER-BIO-ONE kit...
January 24, 2018: BMC Women's Health
Yi-Hsin Lin, Ming-Chieh Yang, Ssu-Hsueh Tseng, Rosie Jiang, Andrew Yang, Emily Farmer, Shiwen Peng, Talia Henkle, Yung-Nien Chang, Chien-Fu Hung, T-C Wu
Human papillomavirus type 16 (HPV16) is the etiologic factor for cervical cancer and a subset of oropharyngeal cancers. Although several prophylactic HPV vaccines are available, no effective therapeutic strategies to control active HPV diseases exist. Tumor implantation models are traditionally used to study HPV-associated buccal tumors. However, they fail to address precancerous phases of disease progression and display tumor microenvironments distinct from those observed in patients. Previously, K14-E6/E7 transgenic mouse models have been used to generate spontaneous tumors...
January 23, 2018: Cancer Immunology Research
Giorgio Bogani, Antonino Ditto, Fabio Martinelli, Mauro Signorelli, Valentina Chiappa, Umberto Leone Roberti Maggiore, Francesca Taverna, Claudia Lombardo, Chiara Borghi, Cono Scaffa, Domenica Lorusso, Francesco Raspagliesi
The objective of this study was to determine whether the pretreatment human papillomavirus (HPV) genotype might predict the risk of cervical dysplasia persistence/recurrence. Retrospective analysis of prospectively collected data of consecutive 5104 women who underwent the HPV-DNA test were matched with retrospective data of women undergoing either follow-up or medical/surgical treatment(s) for genital HPV-related infection(s). Artificial neuronal network (ANN) analysis was used in order to weight the importance of different HPV genotypes in predicting cervical dysplasia persistence/recurrence...
January 22, 2018: European Journal of Cancer Prevention
Edoardo Tartaglia, Katia Falasca, Jacopo Vecchiet, Giovanna Paola Sabusco, Giovanna Picciano, Roberto Di Marco, Claudio Ucciferri
The present cross-sectional-study aimed to determine the prevalence of human papillomavirus (HPV)-genotypes among human immunodeficiency virus (HIV)-positive and -negative women in Central/Eastern Italy, and to identify the optimal strategies for effective HPV-prevention in each group. A representative sample of HIV-negative (150/200) and -positive (50/200) women, who underwent cervico-vaginal-swabbing. Swabs were analysed for a cytological screening and for a HPV-DNA-genotyping-test. A total of 66/200 swabs resulted HPV-positive...
December 2017: Oncology Letters
Alex Allen, Chuan Wang, Lisa J Caproni, Gessa Sugiyarto, Elena Harden, Leon R Douglas, Patrick J Duriez, Kinga Karbowniczek, Jon Extance, Paul J Rothwell, Ifeayinwa Orefo, John P Tite, Freda K Stevenson, Christian H Ottensmeier, Natalia Savelyeva
Vaccination with DNA that encodes cancer antigens is a simple and convenient way to raise immunity against cancer and has already shown promise in the clinical setting. Conventional plasmid DNA is commonly used which together with the encoded antigen also includes bacterial immunostimulatory CpG motifs to target the DNA sensor Toll-like receptor 9. Recently DNA vaccines using doggybone DNA (dbDNA™), have been developed without the use of bacteria. The cell-free process relies on the use of Phi29 DNA polymerase to amplify the template followed by protelomerase TelN to complete individual closed linear DNA...
January 12, 2018: Cancer Immunology, Immunotherapy: CII
Max A Cheng, Emily Farmer, Claire Huang, John Lin, Chien-Fu Hung, T-C Wu
Human papillomavirus (HPV) has long been recognized as the causative agent of cervical cancer. High-risk HPV types 16 and 18 alone, are responsible for over 70% of all cases of cervical cancers. More recently, HPV has been identified as an etiological factor for several other forms of cancers, including oropharyngeal, anogenital, and skin. Thus, the association of HPV with these malignancies creates opportunity for the control of these HPV lesions and HPV-associated malignancies through immunization. Strategies to prevent or to therapeutically treat HPV infections have been developed and are still pushing innovative boundaries...
January 9, 2018: Human Gene Therapy
Benny Johnson, Cathy Eng
An estimated 8200 men and women in the United States will receive a diagnosis of squamous cell carcinoma of the anal canal (SCCA) in 2017. Although SCCA is rare, accounting for 2.6% of gastrointestinal cancers, its incidence rate has been steadily increasing over the last few decades in the United States and around the world. More than 90% of cases of SCCA occur in the context of prior human papillomavirus (HPV) infection. To date, preventive vaccinations against HPV remain markedly underutilized. Most patients who have SCCA present with locoregional disease that is cured with chemoradiation...
December 2017: Clinical Advances in Hematology & Oncology: H&O
Ana M Almeida, Joana Tomás, Patrícia Pereira, João A Queiroz, Fani Sousa, Ângela Sousa
DNA vaccines have come to light in the last decades as an alternative method to prevent many infectious diseases, but they can also be used for the treatment of specific diseases, such as cervical cancer caused by Human Papillomavirus (HPV). This virus produces E6 and E7 oncoproteins, which alter the cell cycle regulation and can interfere with the DNA repairing system. These features can ultimately lead to the progression of cervical cancer, after cell infection by HPV. Thus, the development of a DNA vaccine targeting both proteins arises as an interesting option in the treatment of this pathology...
January 5, 2018: Biotechnology Progress
Alessandra Vergori, Anna Rosa Garbuglia, Pierluca Piselli, Franca Del Nonno, Catia Sias, Federico Lupi, Daniele Lapa, Andrea Baiocchini, Claudia Cimaglia, Marco Gentile, Andrea Antinori, Maria Capobianchi, Adriana Ammassari
BACKGROUND: HIV-positive patients carry an increased risk of HPV infection and associated cancers. Therefore, prevalence and patterns of HPV infection at different anatomical sites, as well as theoretical protection of nonavalent vaccine should be investigated. Aim was to describe prevalence and predictors of oral HPV detection in HIV-positive men, with attention to nonavalent vaccine-targeted HPV types. Further, co-occurrence of HPV DNA at oral cavity and at anal site was assessed. METHODS: This cross-sectional, clinic-based study included 305 HIV-positive males (85...
January 8, 2018: BMC Infectious Diseases
E Marra, N Kroone, E Freriks, C L van Dam, C J Alberts, A A Hogewoning, S Bruisten, A van Dijk, M M Kroone, T Waterboer, M F Schim van der Loeff
BACKGROUND: We studied prevalence, risk factors and concordance of vaginal and anal HPV infection and L1 seropositivity among female sex workers (FSW) in Amsterdam. METHODS: In 2016, FSW aged ≥18 years having a sexually transmitted infections (STI) consultation were invited to participate. Participation entailed taking vaginal and anal self-swabs. Demographics and sexual behaviour data were collected. HPV DNA was analysed using the SPF10-PCR-DEIA-LiPA25-system-v1...
December 28, 2017: Journal of Infection
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