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HPV vaccines efficacy

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https://www.readbyqxmd.com/read/28337085/duty-to-advocate-human-papillomavirus-vaccination
#1
Kristen Nichols, Jennifer Girotto, Amy Mitchell-Van Steele, Sylvia Stoffella
Despite the excellent benefit-to-risk ratio for human papillomavirus (HPV) vaccination and recommendations for its routine use from the Advisory Committee on Immunization Practices (ACIP), significant controversy surrounding HPV vaccination continues to exist. In light of this controversy and continued low rates of vaccination among U.S. adolescents, the Pediatric Pharmacy Advocacy Group (PPAG) endorses the safety and efficacy of HPV vaccination and agrees with ACIP recommendations for protection of the U.S...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28328521/human-papillomavirus-first-and-second-generation-vaccines-current-status-and-future-directions
#2
Somayeh Pouyanfard, Martin Müller
It has been more than 10 years that the first prophylactic papillomavirus vaccine became available, although distribution has been mainly limited to the more affluent countries. The first two vaccines have been a great success, hundreds of millions of women and a much smaller number of men have been vaccinated ever since. In a few countries with high vaccination coverage, in particular Australia but also parts of Great Britain and others, clinical impact of vaccination programs is already visible and there are indications for herd immunity as well...
March 22, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28301611/gtl001-a-bivalent-therapeutic-vaccine-against-human-papillomavirus-16-and-18-induces-antigen-specific-cd8-t-cell-responses-leading-to-tumor-regression
#3
Michaël Esquerré, Myriam Bouillette-Marussig, Anne Goubier, Marie Momot, Christophe Gonindard, Hélène Keller, Astrid Navarro, Marie-Christine Bissery
BACKGROUND: Prophylactic vaccines are available for women and girls not yet infected with HPV, but women already infected with HPV need a treatment to prevent progression to high-grade cervical lesions and cancer. GTL001 is a bivalent therapeutic vaccine for eradicating HPV-infected cells that contains HPV16 E7 and HPV18 E7 both fused to detoxified adenylate cyclase from Bordetella pertussis, which binds specifically to CD11b+ antigen-presenting cells. This study examined the ability of therapeutic vaccination with GTL001 adjuvanted with topical imiquimod cream to induce functional HPV16 E7- and HPV18 E7-specific CD8+ T cell responses...
2017: PloS One
https://www.readbyqxmd.com/read/28286668/a-protocol-for-a-cluster-randomised-feasibility-study-of-an-adolescent-incentive-intervention-to-increase-uptake-of-hpv-vaccination-among-girls
#4
Alice S Forster, Victoria Cornelius, Lauren Rockliffe, Laura A V Marlow, Helen Bedford, Jo Waller
BACKGROUND: Uptake of the human papillomavirus (HPV) vaccine in the UK is good, but there are pockets of the community who remain unprotected. Immunisation teams usually require written parental consent for a girl to receive the vaccine. Evidence suggests that uptake of the vaccine might be improved by promoting consent form return (if returned, forms are likely to grant consent). Incentivising girls to return consent forms is a promising approach to promoting consent form return. Before testing the efficacy of an incentive intervention in a randomised controlled trial (RCT), we must first establish whether the RCT is feasible...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28279260/hpv-based-cervical-cancer-screening-facts-fiction-and-misperceptions
#5
Nicolas Wentzensen, Marc Arbyn
Several randomized trials have demonstrated that HPV-based cervical cancer screening is more effective than cytology-based screening. A pooled analysis of long-term follow-up data from these trials has shown reduced cervical cancer mortality in women screened with HPV compared to cytology. As a consequence, many health systems are currently transitioning to HPV-based screening programs. However, there are several controversies that influence whether and how HPV-based cervical cancer screening is implemented in different settings...
May 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28272545/glycyrrhiza-uralensis-water-extract-enhances-dendritic-cell-maturation-and-antitumor-efficacy-of-hpv-dendritic-cell-based-vaccine
#6
Adila Aipire, Jinyu Li, Pengfei Yuan, Jiang He, Yelang Hu, Lu Liu, Xiaoli Feng, Yijie Li, Fuchun Zhang, Jianhua Yang, Jinyao Li
Licorice has been used as herbal medicine and natural sweetener. Here, we prepared Glycyrrhiza uralensis water extract (GUWE) and investigated the effect of GUWE on the maturation and function of dendritic cells (DCs) and its adjuvant effect on DC-based vaccine. We observed that GUWE dose-dependently promoted DC maturation and cytokine secretion through TLR4 signaling pathway. The capacity of DC to stimulate allogenic splenocyte proliferation was also enhanced by GUWE treatment. Compared with control group, GUWE treated DCs pulsed with human papillomavirus (HPV)-16 E6/E7 peptides significantly inhibited the tumor growth in both early and late therapeutic groups...
March 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28263390/development-of-a-replication-deficient-adenoviral-vector-based-vaccine-candidate-for-the-interception-of-hpv16-and-hpv18-induced-infections-and-disease
#7
Selina Khan, Koen Oosterhuis, Kerstin Wunderlich, Evelien M Bunnik, Melissa Bhaggoe, Satish Boedhoe, Santusha Karia, Renske D M Steenbergen, Leontien Bosch, Jan Serroyen, Sarah Janssen, Hanneke Schuitemaker, Jort Vellinga, Gert Scheper, Roland Zahn, Jerome Custers
High-risk Human papilloma virus (HPV) types are the causative agents of cervical cancer and several other anogenital malignancies. The viral proteins expressed in the (pre)malignant cells are considered ideal targets for immunological intervention. Many approaches have been evaluated for this purpose, mostly aiming at the induction of HPV16 E7- and/or E6-specific cellular immunogenicity. As clinical success has so far been limited, novel approaches are required. We describe the development and pre-clinical testing of a vaccine candidate consisting of replication-deficient adenovirus type 26 and 35 based vectors for the interception of HPV16- and HPV18-related disease...
March 6, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28207677/predictors-of-human-papillomavirus-vaccine-initiation-and-completion-among-latino-mothers-of-11-to-17-year-old-daughters-living-along-the-texas-mexico-border
#8
Daisy Y Morales-Campos, Deborah Parra-Medina
Few Texas Latino girls initiate and complete the human papillomavirus (HPV) vaccine series, but few studies have examined predictors of initiation and completion in this group. Mothers are crucial to vaccine uptake. Using self-reported data from mothers of unvaccinated girls (n = 317), we examined the association between predictors (HPV and HPV vaccine knowledge, vaccine self-efficacy) and outcomes (initiation and completion). Despite an increase in HPV and HPV vaccine knowledge from baseline to follow-up (n = 195), we found no association between the predictors and the outcomes...
April 2017: Family & Community Health
https://www.readbyqxmd.com/read/28196178/association-of-human-papillomavirus-vaccine-with-the-development-of-keratinocyte-carcinomas
#9
Anna J Nichols, Amber Heyna Allen, Shahjahan Shareef, Evangelos V Badiavas, Robert S Kirsner, Tim Ioannides
Importance: Keratinocyte carcinomas (KCs), consisting of squamous cell carcinomas (SCCs) and basal cell carcinomas (BCCs), are the most common human malignant neoplasms. Several risk factors have been implicated in KC development. For some SCCs, particularly those in immunocompromised patients, human papillomavirus (HPV) may be an important factor. Objective: To determine whether quadrivalent HPV vaccination would affect the development of KCs in immunocompetent patients with a history of multiple KCs...
February 8, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28193249/factors-associated-with-parental-reasons-for-no-intent-to-vaccinate-female-adolescents-with-human-papillomavirus-vaccine-national-immunization-survey-teen-2008-2012
#10
Vinay K Cheruvu, Madhav P Bhatta, Lauren N Drinkard
BACKGROUND: 1) To identify socio-demographic factors associated with parental "no-intent" for their 13-17 year old unvaccinated daughter to receive the human papillomavirus (HPV) vaccine series within the next twelve months, 2) to describe patterns in "no-intent" by socio-demographic factors, and 3) to identify socio-demographic factors associated with parental reasons for "no-intent". METHODS: Data from 2008-2012 National Immunization Survey - Teen (NIS - Teen) were examined in this study...
February 13, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28166180/therapeutic-vaccine-against-primate-papillomavirus-infections-of-the-cervix
#11
Emeline Ragonnaud, Anne-Marie C Andersson, Silmi Mariya, Anders G Pedersen, Robert D Burk, Antonella Folgori, Stefano Colloca, Riccardo Cortese, Alfredo Nicosia, Joko Pamungkas, Diah Iskandriati, Peter J Holst
Currently available prophylactic vaccines have no therapeutic efficacy for preexisting human papillomavirus (HPVs) infections, do not target all oncogenic HPVs and are insufficient to eliminate the burden of HPV induced cancer. We aim to develop an alternative HPV vaccine which is broadly effective and capable of clearing preexisting infection. In an initial attempt to develop a broadly reactive therapeutic vaccine, we designed a putative papillomavirus (PV) ancestor antigen (circulating sequence derived antigenic sequences E1E2-CDSE1E2) based on the conserved E1 and E2 protein sequences from existing oncogenic HPV strains...
February 2017: Journal of Immunotherapy
https://www.readbyqxmd.com/read/28118846/ecological-validity-of-cost-effectiveness-models-of-universal-hpv-vaccination-a-protocol-for-a-systematic-review
#12
Giampiero Favato, Emmanouil Noikokyris, Riccardo Vecchiato
BACKGROUND: Sexually transmitted infection with high-risk, oncogenic strains of human papillomavirus (HPV) still induces a relevant burden of diseases on both men and women. Although vaccines appear to be highly efficacious in preventing the infection of the most common high-risk strains (HPV 6, 11, 16, 18), important questions regarding the appropriate target population for prophylactic vaccination are still debated. Models in the extant literature seem to converge on the cost-effectiveness of high coverage (>80%) of a single cohort of 12-year-old girls...
January 25, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28087890/overview-of-the-benefits-and-potential-issues-of-the-nonavalent-hpv-vaccine
#13
REVIEW
Luciano Mariani, Mario Preti, Paolo Cristoforoni, Carlo M Stigliano, Antonio Perino
HPV-related diseases affect anogenital and oropharyngeal regions, heavily affecting the psychosexual dimension of both male and female individuals. HPV vaccination programs based on a bivalent or quadrivalent vaccine have opened broad perspectives for primary prevention. A nonavalent HPV vaccine (9vHPV), covering nine genotypes (HPV6, HPV11, HPV16, HPV18, HPV31, HPV33, HPV45, HPV52, and HPV58), might provide further improvement in terms of direct protection. In the present report, efficacy and safety data from 9vHPV vaccine development programs are examined...
December 7, 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28056826/hpv-genotypes-distribution-in-indian-women-with-and-without-cervical-carcinoma-implication-for-hpv-vaccination-program-in-odisha-eastern-india
#14
Rashmirani Senapati, Bhagyalaxmi Nayak, Shantanu Kumar Kar, Bhagirathi Dwibedi
BACKGROUND: Considering the limited cross protection offered by the current HPV vaccines, understanding the HPV genotype distribution among the different population is essential in predicting the efficacy of current vaccine and devising new vaccine strategy. The present work aimed at investigating the HPV genotypes distribution among women with and without cervical carcinoma in Odisha, Eastern India. METHODS: A total of 607 participants have been enrolled between January 2014 and June 2016...
January 5, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28053505/spotlight-on-the-9-valent-hpv-vaccine
#15
REVIEW
Pier Luigi Lopalco
Starting in 2006, vaccination against human papillomavirus (HPV) has been progressively implemented in most developed countries. Two vaccines have been successfully used, a bivalent vaccine targeting HPV-related cancers (bHPV) and a quadrivalent vaccine (qHPV) targeting both HPV-related cancers and genital warts. Between December 2014 and June 2015, a new nonavalent HPV vaccine (9vHPV) was granted marketing authorization in the USA and Europe. The 9vHPV was developed from the qHPV and includes five additional HPV types that should increase the level of protection toward HPV-related cancers...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28049151/modulation-of-microrna-mrna-target-pairs-by-human-papillomavirus-16-oncoproteins
#16
Mallory E Harden, Nripesh Prasad, Anthony Griffiths, Karl Munger
The E6 and E7 proteins are the major oncogenic drivers encoded by high-risk human papillomaviruses (HPVs). While many aspects of the transforming activities of these proteins have been extensively studied, there are fewer studies that have investigated how HPV E6/E7 expression affects the expression of cellular noncoding RNAs. The goal of our study was to investigate HPV16 E6/E7 modulation of cellular microRNA (miR) levels and to determine the potential consequences for cellular gene expression. We performed deep sequencing of small and large cellular RNAs in primary undifferentiated cultures of human foreskin keratinocytes (HFKs) with stable expression of HPV16 E6/E7 or a control vector...
January 3, 2017: MBio
https://www.readbyqxmd.com/read/28042137/immunogenicity-and-safety-of-human-papillomavirus-hpv-vaccination-in-asian-populations-from-six-countries-a-meta-analysis
#17
Didik Setiawan, Jos Luttjeboer, Koen B Pouwels, Jan C Wilschut, Maarten J Postma
Cervical cancer is a serious public-health problem in Asian countries. Since human papillomavirus (HPV) infection is the main risk factor for cervical cancer, HPV vaccination is considered a promising strategy to prevent cervical cancer. However, comprehensive immunogenicity and safety information for Asian populations is lacking. We searched four electronic databases including PubMed, EMBASE, Cochrane Library, and clinicaltrials.gov. We reviewed selected manuscripts and extracted the pooled relative risk (RR) from immunogenicity and safety information on HPV vaccination among women in Asian countries...
January 1, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28034371/vaccines-against-human-papillomavirus-infections-protection-against-cancer-genital-warts-or-both
#18
REVIEW
E A Joura, S Pils
Since 2006, three vaccines against infections and disease caused by human papillomavirus (HPV) became available in Europe-in 2006 a quadrivalent HPV 6/11/16/18 vaccine, in 2007 a bivalent HPV 16/18 vaccine and in 2015 a nonavalent HPV 6/11/16/18/31/33/45/52/58 vaccine. HPV 16 and 18 are the most oncogenic HPV strains, causing about 70% of cervical and other HPV-related cancers, HPV 6 and 11 cause 85% of all genital warts. The additional types of the polyvalent vaccine account for about 20% of invasive cervical cancer and >35% of pre-cancer...
December 1, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28006858/eurogin-2016-roadmap-how-hpv-knowledge-is-changing-screening-practice
#19
REVIEW
Nicolas Wentzensen, Marc Arbyn, Johannes Berkhof, Mark Bower, Karen Canfell, Mark Einstein, Christopher Farley, Joseph Monsonego, Silvia Franceschi
Human papillomaviruses (HPV) are the necessary cause of most cervical cancers, a large proportion of other anogenital cancers, and a subset of oropharyngeal cancers. The knowledge about HPV has led to development of novel HPV-based prevention strategies with important impact on clinical and public health practice. Two complementary reviews have been prepared following the 2015 Eurogin Conference to evaluate how knowledge about HPV is changing practice in HPV infection and disease control through vaccination and screening...
December 22, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28004837/the-de-and-fg-loops-of-the-hpv-major-capsid-protein-contribute-to-the-epitopes-of-vaccine-induced-cross-neutralising-antibodies
#20
Sara L Bissett, Anna Godi, Simon Beddows
The human papillomavirus (HPV) vaccines consist of major capsid protein (L1) virus-like particles (VLP) and are highly efficacious against the development of cervical cancer precursors attributable to oncogenic genotypes, HPV16 and HPV18. A degree of vaccine-induced cross-protection has also been demonstrated against genetically-related genotypes in the Alpha-7 (HPV18-like) and Alpha-9 (HPV16-like) species groups which is coincident with the detection of L1 cross-neutralising antibodies. In this study the L1 domains recognised by inter-genotype cross-neutralising antibodies were delineated...
December 22, 2016: Scientific Reports
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