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human papilloma virus DNA

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https://www.readbyqxmd.com/read/28620639/prevalence-of-human-papilloma-virus-in-sinonasal-papilloma-in-southern-iranian-population
#1
Behnaz Valibeigi, Mohamad Javad Ashraf, Narges Kerdegari, Akbar Safai, Elham Abedi, Bijan Khademi, Negar Azarpira
STATEMENT OF THE PROBLEM: Sinonasal papilloma (SNP) is a rare benign lesion characterized by high recurrence rate and malignant transformation. PURPOSE: This study aimed to investigate the prevalence of human papilloma virus (HPV) infection in these lesions in South of Iran. MATERIALS AND METHOD: In this cross sectional retrospective study, a total of 41 patients, 38 SNP and 3 SNP/Squamous cell carcinoma cases, from 2007 to 2014 were studied...
June 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28609291/analysis-of-cervical-lesions-for-presence-of-hsv-2-and-hpv-16-and-hpv-18-in-iranian-patients-by-pcr
#2
Mahsa Ahmadi, Hossien Rasi, Mostafa Mostafazadeh, Saba Hajazimian, Nazila Fathi Maroufi, Mohammad Reza Nahaei, Shiva Rahaee, Alireza Isazadeh
Objective Cervical cancer (CC) is one of the leading causes of deaths from cancer among women worldwide. Viral infections is now one of the known risk factors for CC. The aim of this study was to investigate the presence of herpes simplex virus type 2 (HSV-2), human papilloma virus types 16 (HPV-16) and human papilloma virus types 18 (HPV-18) in Iranian patients with CC using the polymerase chain reaction (PCR). Materials and methods This case-control study was conducted on a total of 45 patients with CC from Khatam-Al-Anbiya Hospital, Hamadan, Iran during 2014, and 30 samples from healthy subjects as controls...
May 16, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28559012/establishment-and-characterization-of-an-oral-tongue-squamous-cell-carcinoma-cell-line-from-a-never-smoking-patient
#3
Steven J Wang, Saurabh Asthana, Annemieke van Zante, Chase M Heaton, Janyaporn Phuchareon, Leighton Stein, Saito Higuchi, Tomoya Kishimoto, Charles Y Chiu, Adam B Olshen, Frank McCormick, Osamu Tetsu
OBJECTIVE: The rising incidence of oral tongue squamous cell carcinoma (OTSCC) in patients who have never smoked and the paucity of knowledge of its biological behavior prompted us to develop a new cell line originating from a never-smoker. MATERIALS AND METHODS: Fresh tumor tissue of keratinizing OTSCC was collected from a 44-year-old woman who had never smoked. Serum-free media with a low calcium concentration were used in cell culture, and a multifaceted approach was taken to verify and characterize the cell line, designated UCSF-OT-1109...
June 2017: Oral Oncology
https://www.readbyqxmd.com/read/28545184/frequency-of-human-papillomavirus-hpv-16-and-18-detection-in-paraffin-embedded-laryngeal-carcinoma-tissue
#4
Seyed Zinab Hosseini, Manoochehr Makvandi, Alireza Samarbafzade, Ali Timori, Nastaran Ranjbar, Nader Saki, Nilofar Nisi, Toran Shahani, Mehran Varnaseri, Kambiz Angali Ahmadi
Background and Objective: Human papilloma virus (HPV) 16 and HPV18 have been detected in head and neck squamous cell carcinomas (HNSCC) and there is evidence that detection of HPVs would have better prognostic value than patients with HNSCC negative for HPVs. Thus, this study was conducted to evaluate frequency of HPV 16 and HPV 18 genotypes in patients with laryngeal carcinoma. Materials and methods: Fifty formalin-fixed, paraffin-embedded (FFPE) tissue blocks of laryngeal cancers were collected. Sections were prepared at 5 μm and DNA was extracted from each sample and subjected to the polymerase chain reaction (PCR) to detect HPV-16/18 DNA s...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28537481/investigation-of-methylenetetrahydrofolate-reductase-c677t-polymorphism-and-human-papilloma-virus-genotypes-in-iranian-breast-cancer
#5
Hanieh Rezaei, Hossein Rassi, Fahimeh Nemati Mansur
Breast cancer (BC) is the leading cause of death among Iranian women. Development of BC is a multistep process, arising from genetic changes such as methylenetetrahydrofolate reductase (MTHFR) polymorphism and infection with human papillomavirus (HPV). In this study, we investigated HPV genotypes associated with BCs and its relation with MTHFR C677T polymorphism for early detection of familial BCs. A total of 84 archival BC samples from Iran were collected. Verification of each cancer reported in a relative was sought through the pathology reports of the hospital records...
May 24, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/28508693/a-metabolite-profiling-method-for-diagnosis-of-precancerous-cervical-lesions-and-hpv-persistence
#6
Heather Walker, Michael Burrell, Janet Flatley, Hilary Powers
AIM: With the advent of rapid metabolic profiling techniques and of portable mass spectrometers we examined whether cells distinguished by their cytology and persistence of human papillomavirus infection, could be easily differentiated by their metabolite profile. MATERIALS & METHODS: Direct injection electrospray mass spectrometry was used in a nontargeted double-blind experiment. Samples were collected from women diagnosed with one of two grades of cervical cytology and exhibiting either human papilloma virus persistence or clearance...
May 16, 2017: Bioanalysis
https://www.readbyqxmd.com/read/28487502/pdcd1-pd-1-promoter-methylation-predicts-outcome-in-head-and-neck-squamous-cell-carcinoma-patients
#7
Diane Goltz, Heidrun Gevensleben, Joern Dietrich, Friederike Schroeck, Luka de Vos, Freya Droege, Glen Kristiansen, Andreas Schroeck, Jennifer Landsberg, Friedrich Bootz, Dimo Dietrich
BACKGROUND: Biomarkers that facilitate the prediction of disease recurrence in head and neck squamous cell carcinoma (HNSCC) may enable physicians to personalize treatment. In the current study, DNA promoter methylation of programmed cell death 1 (PDCD1, PD-1) was evaluated as a prognostic biomarker in HNSCC patients. RESULTS: High PDCD1 methylation (mPDCD1) was associated with a significantly shorter overall survival after surgical resection in both the discovery (HR = 2...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28482874/presence-of-human-papillomavirus-dna-in-breast-cancer-a-spanish-case-control-study
#8
Silvia Delgado-García, Juan-Carlos Martínez-Escoriza, Alfonso Alba, Tina-Aurora Martín-Bayón, Hortensia Ballester-Galiana, Gloria Peiró, Pablo Caballero, Jose Ponce-Lorenzo
BACKGROUND: Breast cancer is one of the most important neoplasia among women. It was recently suggested that biological agents could be the etiological cause, particularly Human Papilloma Virus (HPV). The aim of this study was to explore the presence of HPV DNA in a case-control study. METHODS: We performed our study including 251 cases (breast cancer) and 186 controls (benign breast tumors), using three different molecular techniques with PCR (GP5/GP6, CLART® and DIRECT FLOW CHIP®)...
May 8, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28480996/the-pd-1-pd-l1-axis-and-human-papilloma-virus-in-patients-with-head-and-neck-cancer-after-adjuvant-chemoradiotherapy-a-multicentre-study-of-the-german-cancer-consortium-radiation-oncology-group-dktk-rog
#9
Panagiotis Balermpas, Franz Rödel, Mechthild Krause, Annett Linge, Fabian Lohaus, Michael Baumann, Inge Tinhofer, Volker Budach, Ali Sak, Martin Stuschke, Eleni Gkika, Anca-Ligia Grosu, Amir Abdollahi, Jürgen Debus, Stefan Stangl, Ute Ganswindt, Claus Belka, Steffi Pigorsch, Gabriele Multhoff, Stephanie E Combs, Stefan Welz, Daniel Zips, Su Yin Lim, Claus Rödel, Emmanouil Fokas
We examined the prognostic role of PD-1+ and CD8+ tumor infiltrating lymphocytes (TILs), and PD-L1+ cells in patients with squamous cell carcinoma of the head and neck (SCCHN) treated with surgery and postoperative chemoradiotherapy (CRT). FFPE samples from 161 patients were immunohistochemically stained for PD-1, CD8 and PD-L1. The immune marker expression was correlated with clinicopathologic characteristics, and overall survival (OS), local progression-free survival (LPFS) and distant metastases free-survival (DMFS), also in the context of HPV16 DNA/p16 status...
May 8, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28439692/the-presence-and-prognostic-significance-of-human-papillomavirus-in-squamous-cell-carcinoma-of-the-larynx
#10
Evren Erkul, Ismail Yilmaz, Gizem Narli, Mustafa Alparslan Babayigit, Atila Gungor, Dilaver Demirel
The aim of the present study was to evaluate the role of HPV in laryngeal squamous cell carcinoma and correlate it with patients' clinicopathological data. In total, 78 laryngeal squamous cell carcinoma patients enrolled in this study. The presence of genotype-specific HPV DNA was evaluated using Genotyping Assay in formalin-fixed paraffin-embedded tissue which was diagnosed between 2005 and 2015. All samples were also evaluated for p16 immunohistochemical staining. HPV DNA and p16 status were assessed in terms of location, smoking, alcohol consumption, lymph node status, tumor stage, overall survival, disease-free survival, perineural invasion, and vascular invasion retrospectively...
April 21, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28438378/genotyping-of-the-human-papilloma-virus-in-a-group-of-mexican-women-treated-in-a-highly-specialist-hospital-multiple-infections-and-their-potential-transcendence-in-the-current-vaccination-programme
#11
Pablo Romero-Morelos, Arizbett Uribe-Jiménez, Cindy Bandala, Albros Poot-Vélez, Nora Ornelas-Corral, Miriam Rodríguez-Esquivel, Mariana Valdespino-Zavala, Keiko Taniguchi, Daniel Marrero-Rodríguez, Ricardo López-Romero, Mauricio Salcedo
BACKGROUND AND OBJETIVE: Human papilloma virus (HPV) is one of the main risk factors associated with the development of cervical cancer and its precursor lesions. It has been reported that HPV16 and 18 types cover approximately 70% of cervical cancer worldwide; however, significant variation in percentages of HPV infections could be related to specific populations. MATERIALS AND METHODS: Purified DNA of 67 cervical samples were analyzed by Linear Array® HPV genotyping kit...
April 21, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28409676/analysis-of-risk-factors-for-persistent-infection-of-asymptomatic-women-with-high-risk-human-papilloma-virus
#12
Nianmin Shi, Qiang Lu, Jiao Zhang, Li Li, Junnan Zhang, Fanglei Zhang, Yanhong Dong, Xinyue Zhang, Zheng Zhang, Wenhui Gao
OBJECTIVE: This study aims to prevent persistentinfection, reduce the incidence of cervical cancer, and improve women's health by understanding the theoretical basis of the risk factors for continuous infection of asymptomatic women with high-risk human papilloma virus (HPV) strains via information collected, which includes the persistent infection rate and the most prevalent HPV strain types of high risk to asymptomatic women in the high-risk area of cervical cancer in Linfen, Shanxi Province...
June 3, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28405521/human-papilloma-virus-load-and-pd-1-pd-l1-cd8-and-foxp3-in-anal-cancer-patients-treated-with-chemoradiotherapy-rationale-for-immunotherapy
#13
Panagiotis Balermpas, Daniel Martin, Ulrike Wieland, Margret Rave-Fränk, Klaus Strebhardt, Claus Rödel, Emmanouil Fokas, Franz Rödel
We examined the prognostic role of immune markers programmed cell death protein-1 (PD-1) and its ligand (PD-L1), CD8(+) tumor-infiltrating lymphocytes (TILs), FOXP3+ Tregs and phosphorylated Caspase-8 (T273) in patients with anal squamous cell cancer (ASCC) treated with standard chemoradiotherapy (CRT). The baseline immunohistochemical expression of immune markers was correlated with clinicopathologic characteristics, and cumulative incidence of local failure, disease-free survival (DFS) and overall survival (OS) in 150 patients, also in the context of human papilloma virus 16 (HPV16) DNA load and p16(INK4a) expression...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28387325/hpv-negative-penile-squamous-cell-carcinoma-disruptive-mutations-in-the-tp53-gene-are-common
#14
Karl Kashofer, Elke Winter, Iris Halbwedl, Andrea Thueringer, Marisa Kreiner, Stefan Sauer, Sigrid Regauer
The majority of penile squamous cell carcinomas is caused by transforming human papilloma virus (HPV) infection. The etiology of HPV-negative cancers is unclear, but TP53 mutations have been implicated. Archival tissues of 108 invasive squamous cell carcinoma from a single pathology institution in a low-incidence area were analyzed for HPV-DNA and p16(ink4a) overexpression and for TP53 mutations by ion torrent next-generation sequencing. Library preparation failed in 32/108 squamous cell carcinomas. Institutional review board approval was obtained...
April 7, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28381277/unique-dna-methylation-signature-in-hpv-positive-head-and-neck-squamous-cell-carcinomas
#15
Davide Degli Esposti, Athena Sklias, Sheila C Lima, Stéphanie Beghelli-de la Forest Divonne, Vincent Cahais, Nora Fernandez-Jimenez, Marie-Pierre Cros, Szilvia Ecsedi, Cyrille Cuenin, Liacine Bouaoun, Graham Byrnes, Rosita Accardi, Anne Sudaka, Valérie Giordanengo, Hector Hernandez-Vargas, Luis Felipe Ribeiro Pinto, Ellen Van Obberghen-Schilling, Zdenko Herceg
BACKGROUND: Head and neck squamous cell carcinomas (HNSCCs) represent a heterogeneous group of cancers for which human papilloma virus (HPV) infection is an emerging risk factor. Previous studies showed promoter hypermethylation in HPV(+) oropharyngeal cancers, but only few consistent target genes have been so far described, and the evidence of a functional impact on gene expression is still limited. METHODS: We performed global and stratified pooled analyses of epigenome-wide data in HNSCCs based on the Illumina HumanMethylation450 bead-array data in order to identify tissue-specific components and common viral epigenetic targets in HPV-associated tumours...
April 5, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28381193/gene-promoter-methylation-and-protein-expression-of-brms1-in-uterine-cervix-in-relation-to-high-risk-human-papilloma-virus-infection-and-cancer
#16
Maria Panagopoulou, Maria Lambropoulou, Ioanna Balgkouranidou, Evangelia Nena, Makrina Karaglani, Christina Nicolaidou, Anthi Asimaki, Theocharis Konstantinidis, Theodoros C Constantinidis, George Kolios, Stylianos Kakolyris, Theodoros Agorastos, Ekaterini Chatzaki
Cervical cancer is strongly related to certain high-risk types of human papilloma virus infection. Breast cancer metastasis suppressor 1 (BRMS1) is a tumor suppressor gene, its expression being regulated by DNA promoter methylation in several types of cancers. This study aims to evaluate the methylation status of BRMS1 promoter in relation to high-risk types of human papilloma virus infection and the development of pre-cancerous lesions and describe the pattern of BRMS1 protein expression in normal, high-risk types of human papilloma virus-infected pre-cancerous and malignant cervical epithelium...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28362190/hpv-epigenetic-mechanisms-related-to-oropharyngeal-and-cervix-cancers
#17
Marina Di Domenico, Giancarlo Giovane, Soumaya Kouidhi, Rosamaria Iorio, Maurizio Romano, Francesco De Francesco, Antonia Feola, Camilla Siciliano, Luigi Califano, Antonio Giordano
Human Papilloma Virus infection is very frequent in humans and is mainly transmitted sexually. The majority of infections are transient and asymptomatic, however, if the infection persists, it can occur with a variety of injuries to skin and mucous membranes, depending on the type of HPV involved. Some types of HPV are classified as high oncogenic risk as associated with the onset of cancer. The tumors most commonly associated with HPV are cervical and oropharyngeal cancer, epigenetic mechanisms related to HPV infection include methylation changes to host and viral DNA and chromatin modification in host species...
March 31, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28351563/sensitivity-of-tumor-surface-brushings-to-detect-human-papilloma-virus-dna-in-head-and-neck-cancer
#18
Barbara Kofler, Wegene Borena, Claudia Manzl, Jozsef Dudas, Anne-Sophie Wegscheider, Pidder Jansen-Dürr, Volker Schartinger, Herbert Riechelmann
OBJECTIVE: Human papilloma virus (HPV) induced head and neck squamous cell carcinoma (HNSCC) represents a distinct tumor subset. We questioned how accurately a brushing from the tumor surface detects HPV in patients with HNSCC. MATERIALS AND METHODS: Brushings from the tumor surface were compared with HPV DNA isolation from formalin-fixed and paraffin-embedded (FFPE) tumor biopsies, which served as the reference standard. In both matrices, HPV DNA was detected using a commercially available test kit...
April 2017: Oral Oncology
https://www.readbyqxmd.com/read/28321220/adjusted-particle-size-eliminates-the-need-of-linkage-of-antigen-and-adjuvants-for-appropriated-t-cell-responses-in-virus-like-particle-based-vaccines
#19
Ariane C Gomes, Anna Flace, Philippe Saudan, Franziska Zabel, Gustavo Cabral-Miranda, Aadil El Turabi, Vania Manolova, Martin F Bachmann
Since the discovery of the first virus-like particle (VLP) derived from hepatitis B virus in 1980 (1), the field has expanded substantially. Besides successful use of VLPs as safe autologous virus-targeting vaccines, the powerful immunogenicity of VLPs has been also harnessed to generate immune response against heterologous and even self-antigens (2-4). Linking adjuvants to VLPs displaying heterologous antigen ensures simultaneous delivery of all vaccine components to the same antigen-presenting cells. As a consequence, antigen-presenting cells, such as dendritic cells, will process and present the antigen displayed on VLPs while receiving costimulatory signals by the VLP-incorporated adjuvant...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28316321/analyzing-esophageal-squamous-cell-papillomas-for-the-presence-of-human-papilloma-vir%C3%A3-s
#20
Arzu Tiftikçi, Eser Kutsal, Ender Altıok, Ümit İnce, Bahattin Çicek, Murat Saruç, Nurten Türkel, Özdal Ersoy, Güven Yenmiş, Nurdan Tözün
BACKGROUND/AIMS: Human Papilloma Virus (HPV) infection can be a predisposing condition for the development of squamous cell papilloma (SCP) of the esophagus, which can progress to dysplasia and to carcinoma as a result of chronic infection. The aim of the present study was to search for the presence of HPV in the esophageal SCP, and to genotype the detected HPV. MATERIALS AND METHODS: Data from patients with definite diagnosis of SCP of the esophagus were identified from pathology records for two years period at different Hospitals...
May 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
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