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https://www.readbyqxmd.com/read/29777397/telomeres-and-telomerase-during-human-papillomavirus-induced-carcinogenesis
#1
REVIEW
Anna Pańczyszyn, Ewa Boniewska-Bernacka, Grzegorz Głąb
Human papillomaviruses (HPVs) belong to a small spherical virus family and are transmitted through direct contact, most often through sexual behavior. More than 200 types of HPV are known, a dozen or so of which are classified as high-risk viruses (HR HPV) and may contribute to the development of cervical cancer. HPV is a small virus with a capsid composed of L1 and L2 proteins, which are crucial for entry to the cell. The infection begins at the basal cell layer and progresses to involve cells from higher layers of the cervical epithelium...
May 18, 2018: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/29771378/detection-of-incident-anal-high-risk-hpv-dna-in-msm-incidence-or-reactivation
#2
Denise E Twisk, Marianne A B van der Sande, Arne van Eeden, Daniëlle A M Heideman, Fiona R M van der Klis, Henry J C de Vries, Maarten F Schim van der Loeff
Background: We aimed to assess whether sexual exposure may explain all incident anal HPV detections among men who have sex with men (MSM). Methods: A longitudinal study among MSM was conducted between 2010 and 2013 with six-monthly visits and up to 24 months of follow-up. Risk-factor questionnaires, blood samples, and anal and penile self-swabs were collected at each visit. Self-swabs were used for detection and genotyping of HPV by SPF10-PCR/DEIA/LiPA25 system...
May 16, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29767739/efficacy-immunogenicity-and-safety-of-a-9-valent-human-papillomavirus-vaccine-subgroup-analysis-of-participants-from-asian-countries
#3
S M Garland, P Pitisuttithum, H Y S Ngan, C-H Cho, C-Y Lee, C-A Chen, Y C Yang, T-Y Chu, N-F Twu, R Samakoses, Y Takeuchi, T H Cheung, S C Kim, L-M Huang, B-G Kim, Y-T Kim, K-H Kim, Y-S Song, S Lalwani, J-H Kang, M Sakamoto, H-S Ryu, N Bhatla, H Yoshikawa, M C Ellison, S R Han, E Moeller, S Murata, M Ritter, M Sawata, C Shields, A Walia, G Perez, A Luxembourg
Background: A 9-valent human papillomavirus-6/11/16/18/31/33/45/52/58 (9vHPV) vaccine extends coverage to 5 next most common oncogenic types (31/33/45/52/58) in cervical cancer versus quadrivalent HPV (qHPV) vaccine. We describe efficacy, immunogenicity, and safety in Asian participants (India, Hong Kong, South Korea, Japan, Taiwan, and Thailand) from 2 international studies: a randomized, double-blinded, qHPV vaccine-controlled efficacy study (young women aged 16-26 years; NCT00543543; Study 001); and an immunogenicity study (girls and boys aged 9-15 years; NCT00943722; Study 002)...
May 15, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29764277/human-papillomavirus-hpv-is-absent-in-branchial-cleft-cysts-of-the-neck-distinguishing-them-from-hpv-positive-cystic-metastasis
#4
Lars Sivars, David Landin, Marzia Rizzo, Linnea Haeggblom, Cinzia Bersani, Eva Munck-Wikland, Anders Näsman, Tina Dalianis, Linda Marklund
BACKGROUND: Distinguishing branchial cleft cysts (BCCs) from cystic metastases of a human papillomavirus (HPV) positive oropharyngeal squamous cell carcinoma (OPSCC) is challenging. Fine needle aspirates (FNAs) from cystic metastasis may be non-representative, while reactive squamous cells from BCC can be atypic. Based on cytology and with the support of HPV DNA positivity many centers treat cystic metastasis oncological and thus patients are spared neck dissection. To do so safely, one must investigate whether HPV DNA and p16INK4a overexpression is found exclusively in cystic metastases and not in BCC...
May 15, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29763978/circulating-human-papillomavirus-dna-as-a-surveillance-tool-in-head-and-neck-squamous-cell-carcinoma-a-systematic-review-and-meta-analysis
#5
Kristina Kvist Jensen, Christian Grønhøj, David H Jensen, Christian von Buchwald
BACKGROUND: The incidence of human papillomavirus-induced (HPV+) head and neck squamous cell carcinoma (HNSCC) i.e. especially oropharyngeal cancers (OPSCC) is increasing and a significant proportion of patients encounter disease progression. A simple and sensitive test to identify patients with progression is an unmet need. OBJECTIVE OF REVIEW: To systematically review the literature and carry out a meta-analysis of studies, investigated circulating HPV-DNA as a biomarker for disease progression in patients with HNSCC...
May 15, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29759898/risk-factors-for-human-papillomavirus-detection-in-urine-samples-of-heterosexual-men-visiting-urological-clinics-in-japan
#6
Kazufumi Nakashima, Kazuyoshi Shigehara, Tadaichi Kitamura, Hiroshi Yaegashi, Masayoshi Shimamura, Shohei Kawaguchi, Kouji Izumi, Yoshifumi Kadono, Atsushi Mizokami
OBJECTIVE: The present study aimed to investigate human papillomavirus (HPV) prevalence and identify risk factors for HPV detection in urine samples among heterosexual men attending urological clinics. MATERIALS AND METHODS: Spot urine samples including initial stream were collected from 845 participants, and the cell pellets were preserved into liquid-based cytological solution. After DNA extraction from each sample, HPV-DNA amplification and genotyping were performed using Luminex multiplex polymerase chain reaction...
May 11, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29750774/genital-wart-and-human-papillomavirus-prevalence-in-men-in-the-united-states-from-penile-swabs-results-from-national-health-and-nutrition-examination-surveys
#7
Michael Daugherty, Timothy Byler
INTRODUCTION: Human papillomavirus (HPV) is a common sexually transmitted infection in the United States 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 men in the US population using a nationwide sample. METHODS: The NHANES database was queried for all men aged 18 to 59 years during the years 2013 to 2014...
June 2018: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/29749321/prevalence-of-the-integration-status-for-human-papillomavirus-16-in-esophageal-carcinoma-samples
#8
Shuying Li, Haie Shen, Ji Li, Xiaoli Hou, Ke Zhang, Jintao Li
BACKGROUND/AIMS: To investigate the etiology of esophageal cancer (EC) related with human papillomavirus (HPV) infection. MATERIALS AND METHODS: Fresh surgically resected tissue samples and clinical information were obtained from 189 patients. Genomic DNA was extracted, and HPV was detected using polymerase chain reaction (PCR) with HPV L1 gene primers of MY09/11; HPV16 was detected using HPV16 E6 type-specific primer sets. Copies of HPV16 E2, E6, and the human housekeeping gene β-actin were tested using quantitative PCR to analyze the relationship between HPV16 integration and esophageal squamous cell carcinoma and the relationship between the HPV16 integration status and clinical information of patients...
March 2018: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/29747340/-the-impact-of-male-circumcision-on-the-natural-history-of-genital-hpv-infection-a-prospective-cohort-study
#9
F X Wei, M Guo, X J Ma, Y Huang, Y Zheng, L Wang, Y Sun, S J Zhuang, K Yin, Y Y Su, S J Huang, M Q Li, T Wu, J Zhang
Objective: To analyze the correlation between circumcision and incidence and clearance of male genital HPV infection. Methods: From May to July 2014, 18-55 year old men who had sexual behavior history were recruited from the general population in Liuzhou, Guangxi to set up a cohort. Totally, 113 circumcised and 560 uncircumcised men were enrolled and interviewed using a questionnaire (including information on demographic characteristics and sexual behaviors), then they were followed-up with 6-month interval for 2 times...
May 6, 2018: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29747337/-comparison-of-screening-performance-between-primary-high-risk-hpv-screening-and-high-risk-hpv-screening-plus-liquid-based-cytology-cotesting-in-diagnosis-of-cervical-precancerous-or-cancerous-lesions
#10
X L Zhao, Rezhake Remila, S Y Hu, L Zhang, X Q Xu, F Chen, Q J Pan, X Zhang, F H Zhao
Objective: To evaluate and compare the screening performance of primary high-risk HPV(HR-HPV) screening and HR-HPV screening plus liquid-based cytology (LBC) cotesting in diagnosis of cervical cancer and precancerous lesions (CIN2+). Methods: We pooled 17 population-based cross-sectional studies which were conducted across China from 1999 to 2008. After obtaining informed consent, all women received liquid-based cytology(LBC)testing, HR-HPV DNA testing. Totally 28 777 women with complete LBC, HPV and biopsy results were included in the final analysis...
May 6, 2018: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29745089/hpv-infection-in-oropharyngeal-squamous-cell-carcinomas-correlation-with-tumor-size
#11
Eleftheria Gletsou, Theodoros A Papadas, Evangelia Baliou, Evangelos Tsiambas, Vasileios Ragos, Ilianna E Armata, George E Metaxas, Panagiotis P Fotiades
PURPOSE: Human papillomavirus (HPV) is implicated in carcinogenesis of a variety of epithelia, including oropharyngeal and laryngeal. High risk (HR) HPV persistent infection in head and neck squamous cell carcinomas (HNSCC) is a significant event, but its influence regarding the prognosis and survival in these patients remains under consideration. Our aim was to analyze a series of oropharyngeal (OP) SCCs at the HPV DNA level, correlating them to the survival status of the corresponding patients...
March 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29744680/association-of-antibody-to-e2-protein-of-human-papillomavirus-and-p16-ink4a-with-progression-of-hpv-infected-cervical-lesions
#12
Jureeporn Chuerduangphui, Chamsai Pientong, Piyawut Swangphon, Sanguanchoke Luanratanakorn, Ussanee Sangkomkamhang, Thumwadee Tungsiriwattana, Pilaiwan Kleebkaow, Ati Burassakarn, Tipaya Ekalaksananan
Human papillomavirus (HPV) E2 and L1 proteins are expressed in cervical cells during the lytic stage of infection. Overexpression of p16INK4A is a biomarker of HPV-associated cervical neoplasia. This study investigated antibodies to HPV16 E2, HPV16 L1, and p16INK4A in sera from women with no squamous intraepithelial lesion (No-SIL) of the cervix, low-grade SIL, high-grade SIL, and cervical squamous cell carcinoma (SCC). HPV DNA was detected by polymerase chain reaction. Anti-E2, -L1, and -p16INK4A antibodies in sera were determined by western blot...
May 9, 2018: Medical Oncology
https://www.readbyqxmd.com/read/29741175/rapid-and-sensitive-detection-of-viral-nucleic-acids-using-silicon-microchips
#13
Laura Powell, Rodrigo Sergio Wiederkehr, Paige Damascus, Maarten Fauvart, Federico Buja, Tim Stakenborg, Stuart C Ray, Paolo Fiorini, William O Osburn
Clinical laboratory-based nucleic acid amplification tests (NAT) play an important role in diagnosing viral infections. However, laboratory infrastructure requirements and their failure to diagnose at the point-of-need (PON) limit their clinical utility in both resource-rich and -limited clinical settings. The development of fast and sensitive PON viral NAT may overcome these limitations. The scalability of silicon microchip manufacturing combined with advances in silicon microfluidics present an opportunity for development of rapid and sensitive PON NAT on silicon microchips...
May 9, 2018: Analyst
https://www.readbyqxmd.com/read/29741143/zinc-finger-nuclease-combines-with-cisplatin-and-trichostatin-a-enhances-the-antitumor-potency-in-cervical-cancer-cells
#14
Ci Ren, Hui Wang, Wencheng Ding, Chun Gao, Xiaomin Li, Hui Shen, Liming Wang, Da Zhu, Peng Wu, Ding Ma
Cervical cancer is the third-most common malignant tumor among women worldwide, which seriously endangers the life and health of Chinese women. The primary etiological factor of cervical cancer is persistent infection with high-risk human papillomavirus (HR-HPV), particularly HPV16 and HPV18. HR-HPV express oncoproteins E6 and E7, both of which play key roles in the progression of cervical carcinogenesis. Zinc Finger Nucleases (ZFNs) targeting HPVE7 induce specific shear of the E7 gene, weakening the malignant biological effects, hence showing great potential for clinical transformation...
May 9, 2018: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29740819/prophylactic-vaccination-against-human-papillomaviruses-to-prevent-cervical-cancer-and-its-precursors
#15
REVIEW
Marc Arbyn, Lan Xu, Cindy Simoens, Pierre Pl Martin-Hirsch
BACKGROUND: Persistent infection with high-risk human papillomaviruses (hrHPV) types is causally linked with the development of cervical precancer and cancer. HPV types 16 and 18 cause approximately 70% of cervical cancers worldwide. OBJECTIVES: To evaluate the harms and protection of prophylactic human papillomaviruses (HPV) vaccines against cervical precancer and HPV16/18 infection in adolescent girls and women. SEARCH METHODS: We searched MEDLINE, Cochrane Central Register of Controlled Trials (CENTRAL) and Embase (June 2017) for reports on effects from trials...
May 9, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29736315/kshv-co-infection-regulates-hpv16-cervical-cancer-cells-pathogenesis-in-vitro-and-in-vivo
#16
Lu Dai, Jing Qiao, Luis Del Valle, Zhiqiang Qin
High-risk human papillomavirus (HPV) infection is the etiological agent of cervical, oral and oropharyngeal cancers. Another oncogenic virus, Kaposi sarcoma-associated herpesvirus (KSHV) can cause several human cancers arising in those immunocompromised patients. KSHV DNA has been detected in the oral cavity and the female genital tract, although its detection rate in cervical samples is relatively low. Therefore, it remains unclear about the role of KSHV co-infection in the development of HPV-related neoplasia...
2018: American Journal of Cancer Research
https://www.readbyqxmd.com/read/29734135/hpv-related-papillary-squamous-cell-carcinoma-of-the-tonsil-during-treatment-with-fingolimod
#17
Maria Donata Benedetti, Antonio Marangi, Silvia Bozzetti, Francesca Gobbin, Marco Turatti, Maurizio Pea, Alberto Gajofatto, Stelio Mocella
Fingolimod is a commonly used treatment for highly active relapsing-remitting multiple sclerosis (MS). We describe the case of a 50-year old man on fingolimod since 2011 who presented, in April 2017, with a voluminous swelling of the left tonsil. A left tonsillectomy was performed, and histological exam disclosed a papillary squamous cell carcinoma of the palatine tonsil, with an in situ hybridization positive for human papillomavirus (HPV)-16 DNA. Neither lymph nodes involvement nor other metastases were detected...
May 2, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29733248/antitumor-response-by-endoplasmic-reticulum-targeting-dna-vaccine-is-improved-by-adding-a-kdel-retention-signal
#18
José J Pérez-Trujillo, Olivia A Robles-Rodríguez, Rodolfo Garza-Morales, Aracely García-García, Humberto Rodríguez-Rocha, Arnulfo Villanueva-Olivo, Juan C Segoviano-Ramírez, Sandra C Esparza-González, Odila Saucedo-Cárdenas, Roberto Montes-de-Oca-Luna, María J Loera-Arias
Directing an antigen to the endoplasmic reticulum (ER) improves the antigen-specific immune response, revealing a potentially useful strategy in cancer immunotherapy using tumor-associated antigens (TAAs). This can be achieved by fusing the antigen to an ER chaperone protein, such as calreticulin (CRT). We previously reported the antitumor response by fusing the CRT signal peptide (SP) and its ER retention sequence (KDEL) to full-length human papillomavirus type 16 (HPV-16) E6 and E7 antigens, obtaining a potent antitumoral effect...
May 7, 2018: Nucleic Acid Therapeutics
https://www.readbyqxmd.com/read/29731917/the-analysis-of-human-papillomavirus-dna-in-penile-cancer-tissue-by-in-situ-hybridization
#19
Daiji Takamoto, Takashi Kawahara, Jun Kasuga, Takeshi Sasaki, Masahiro Yao, Yasushi Yumura, Hiroji Uemura
Primary penile cancer is a rare disease. Higher incidence rates occur in underdeveloped countries. Many studies have suggested an association between human papillomavirus (HPV) infection and penile cancer. Although HPV can affect the squamous epithelium of the male genitalia similarly to the female genital tract, the association between penile cancer and HPV remains unclear. In the present study, the HPV gene expression was examined in penile cancer tissue using in situ hybridization (ISH). The present study included 41 cases in which penectomy was performed and 3 cases in which tumor resection was performed to treat pathologically-diagnosed penile cancer at Yokohama City University Medical Center, and its 7 affiliated hospitals between April 1990 and March 2010...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29731894/integration-sites-of-human-papillomavirus-18-in-esophageal-cancer-samples
#20
Shuying Li, Zhanjun Liu, Jianghong Yan, Shangbo Sun, Xiaoli Hou, Dianqing Liu, Ke Zhang, Jin-Tao Li
To investigate the association between human papillomavirus (HPV) infection and esophageal cancer, genomic DNA was isolated from 189 samples obtained from patients with esophageal carcinoma, and HPV DNA was identified using the polymerase chain reaction (PCR) with the following specific primers: My09/11 for HPV L1 and HPV18 E6 for HPV18. The HPV18 gene products were sequenced to identify the HPV genotype and the HPV18 integration site was verified using PCR amplification of papillomavirus oncogene transcripts...
May 2018: Oncology Letters
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