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https://www.readbyqxmd.com/read/28932636/cd103-tumor-infiltrating-lymphocytes-are-tumor-reactive-intraepithelial-cd8-t-cells-associated-with-prognostic-benefit-and-therapy-response-in-cervical-cancer
#1
Fenne L Komdeur, Thalina M Prins, Stephanie van de Wall, Annechien Plat, G Bea A Wisman, Harry Hollema, Toos Daemen, David N Church, Marco de Bruyn, Hans W Nijman
Human papilloma virus (HPV)-induced cervical cancer constitutively expresses viral E6/E7 oncoproteins and is an excellent target for T cell-based immunotherapy. However, not all tumor-infiltrating T cells confer equal benefit to patients, with epithelial T cells being superior to stromal T cells. To assess whether the epithelial T cell biomarker CD103 could specifically discriminate the beneficial antitumor T cells, association of CD103 with clinicopathological variables and outcome was analyzed in the TCGA cervical cancer data set (n = 304) and by immunohistochemistry (IHC) in an independent cohort (n = 460)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28926591/no-evidence-for-the-presence-of-epstein-barr-virus-in-squamous-cell-carcinoma-of-the-mobile-tongue
#2
Torben Wilms, Gulfaraz Khan, Philip J Coates, Nicola Sgaramella, Robin Fåhraeus, Asma Hassani, Pretty S Philip, Lena Norberg Spaak, Luigi Califano, Giuseppe Colella, Katarina Olofsson, Christos Loizou, Renato Franco, Karin Nylander
Squamous cell carcinoma of the head and neck (SCCHN) comprises a large group of cancers in the oral cavity and nasopharyngeal area that typically arise in older males in association with alcohol/tobacco usage. Within the oral cavity, the mobile tongue is the most common site for tumour development. The incidence of tongue squamous cell carcinoma (TSCC) is increasing in younger people, which has been suggested to associate with a viral aetiology. Two common human oncogenic viruses, human papilloma virus (HPV) and Epstein-Barr virus (EBV) are known causes of certain types of SCCHN, namely the oropharynx and nasopharynx, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28926109/role-of-viruses-in-gastrointestinal-cancer
#3
REVIEW
Habibollah Mirzaei, Hossein Goudarzi, Gita Eslami, Ebrahim Faghihloo
Gastrointestinal cancers are a global public health problem, which represent a vast majority of all cancer-caused deaths in both men and women. On the other hand, viral pathogens have been long implicated as etiological factors in the onset of certain human cancers, including gastrointestinal tumors. In this regard, Human Papilloma Virus (HPV), Epstein - Barr Virus (EBV) and John Cunningham Virus (JCV) have been more strongly suggested to be involved in gastrointestinal carcinogenesis; so that, the association of HPV with oropharyngeal and anal cancers and also the association of EBV with gastric cancer have been etiologically confirmed by epidemiological and experimental investigations...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28924735/the-g-protein-coupled-estrogen-receptor-gper-gpr30-may-serve-as-a-prognostic-marker-in-early-stage-cervical-cancer
#4
Klaus Friese, Bernd Kost, Aurelia Vattai, Frederik Marmé, Christina Kuhn, Sven Mahner, Christian Dannecker, Udo Jeschke, Sabine Heublein
BACKGROUND: Estrogen signalling is transmitted via various receptors and multiple intracellular signalling pathways. Estrogen receptor alpha (ERα)-mediated transcription of target genes has been demonstrated to be closely linked to human papilloma virus (HPV)-induced carcinogenesis in case of cervical cancer. So far, the role of non-genomic estrogen signals in cervical cancer, e.g. transmitted by the G protein-coupled estrogen receptor (GPER) remains to be rather elusive. Today's knowledge on the role of GPER in cervical cancer is sparse and-to the best of our knowledge-GPER has not been investigated in context with clinicopathological parameters or prognosis of cervical cancer...
September 18, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28923180/menopause-in-latin-america-symptoms-attitudes-treatments-and-future-directions-in-costa-rica
#5
REVIEW
T D Locklear, B J Doyle, A L Perez, S M Wicks, G B Mahady
Similar to their US counterparts, Costa Rican women enter menopause at ∼50 years of age, have similar symptoms, including hot flashes and night sweats, as well as an overall negative attitude toward the menopausal transition. One study of rural women in Monteverde reported that women knew little about the menopausal transition, as the subject was not discussed. Similar to other Latin American women, the use of hormone therapy by Costa Rican women is low and instead they use alternative therapies, including massage, dietary changes and herbal medicines...
October 2017: Maturitas
https://www.readbyqxmd.com/read/28919616/detection-of-human-papilloma-virus-by-molecular-method-from-patients-attending-at-colposcopy-clinic-of-mymensingh-medical-college-hospital-mymensingh
#6
H Begum, M A Hossain, S K Paul, S A Nasreen, S Ahmed, S Nahar, S Monwar, F Nahar, S Roy, S A Abdullah, S Abedin, M U Ahmed, T K Barman
Cervical cancer is the second most common cancer in women worldwide. Human papillomavirus (HPV) is considered as the main cause of invasive cervical cancer and cervical intra-epithelial neoplasia. High risk HPV DNA has been shown to be present in 99.7% of cervical cancers. So HPV DNA testing for screening of cervical cancers may play a potential role in early detection and management of cervical cancer. With above background a cross sectional study was undertaken to estimate the prevalence and to identify the associated risk factors of human Papillomavirus infection among Visual Inspection with Acetic acid (VIA) positive women attending at colposcopy clinic of Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh from July 2013 to December 2014...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28919602/comparative-study-of-cytology-and-histopathology-of-cervical-lesion-in-via-positive-patients-and-its-correlation-with-high-risk-human-papilloma-virus
#7
N P Ansari, F M Saleh, S M Shahida, E N Rahman
Cervical cancer is the second most frequent type of cancer and leading cause of mortality among women worldwide. The present study was undertaken to assess precancerous and cancerous cervical lesion by cytology as well as HPV DNA identification and their comparison with histopathology in VIA positive cases. This descriptive, cross-sectional type of observational study was carried out in the Department of Pathology, Mymensingh Medical College in collaboration with the Department of Gynecology and Obstetrics, Mymensingh Medical College Hospital and Department of Microbiology and Hygiene in Bangladesh Agriculture University for HPV DNA detection from July 2012 to June 2013...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28919581/antitumor-response-to-a-codon-optimized-hpv-16-e7-hsp70-fusion-antigen-dna-vaccine
#8
Hoorieh Soleimanjahi, Hadi Razavinikoo, Fatemeh Fotouhi, Abdollah Ardebili
BACKGROUND: Vaccines based on virus-like particles are effective against Human Papilloma Virus (HPV) infection; however, they have not shown a therapeutic effect against HPV-associated diseases. New immunotherapy strategies based on immune responses against tumor antigens can positively affect the clearance of HPV-associated lesions. OBJECTIVE: To generate two therapeutic fusion DNA vaccines (optimizedE7/mouseHSP70 and wildE7/mouseHSP70) to induce antitumor specific responses in mice models...
September 2017: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/28919017/molecular-characterization-of-lower-vaginal-swabs-for-human-papilloma-virus-in-association-with-chlamydia-trachomatis-infection-in-cameroonian-women
#9
Pythagore Fogue, Geraldo Djeudong, George Bouting, Elom Aglago, Gustave Simo, Smiths Lueong
Human papilloma virus (HPV) infection is an etiological factor for cervical cancer development and Chlamydia trachomatis (Ct) is considered as a cofactor. Understanding the dynamics of HPV and Ct infection could help to explain the incidence of early onset of cervical cancer (CC) observed in Cameroon. Lower vaginal swabs and sera from sexually active women were analyzed for HPV and Ct infection in association with risk factors. Questionnaires were used to document patients' lifestyle and risk factors. A total of 206 women participated in the study average 28...
September 14, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28918603/tumor-markers-of-uterine-cervical-cancer-a-new-scenario-to-guide-surgical-practice
#10
REVIEW
Gaetano Valenti, Salvatore Giovanni Vitale, Alessandro Tropea, Antonio Biondi, Antonio Simone Laganà
Since the introduction of Pap smear screening, the incidence and mortality of cervical cancer (CC) have been reduced drastically in USA and in other western states. Nevertheless, CC still remains the main cause of death from gynecological cancer in developing countries where screening programs are scant or inexistent. This evidence highlights the efficacy of screening, and the wide use of Human Papilloma Viruses (HPV) vaccines in developed countries. More and more people are, consequentially, undergoing a screening procedure, usually combined with HPV DNA test, increasing the early diagnosis of intraepithelial HPV-related lesions...
September 16, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28917462/human-papilloma-virus-expression-in-immunocompetent-patients-with-actinic-keratosis-a-case-series
#11
Caterina Dianzani, Francesca Paolini, Claudio Conforti, Elisabetta Riva, Emanuela Beninati, Aldo Venuti
No abstract text is available yet for this article.
October 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28916527/demethylation-therapy-as-a-targeted-treatment-for-human-papilloma-virus-associated-head-and-neck-cancer
#12
Asel K Biktasova, Michael Hajek, Andrew B Sewell, Cyril S Gary, Gary Bellinger, Hari Deshpande, Aarti K Bhatia, Barbara A Burtness, Benjamin L Judson, Saral Mehra, Wendell G Yarbrough, Natalia Issaeva
PURPOSE: DNA methylation in human papillomavirus-associated (HPV+) head and neck squamous cell carcinoma (HNSCC) may have importance for continuous expression of HPV oncogenes, tumor cell proliferation and survival. Here, we determined activity of a global DNA demethylating agent, 5-azacytidine (5-aza), against HPV+ HNSCC in pre-clinical models and explored it as a targeted therapy in a window trial enrolling patients with HPV+ HNSCC. EXPERIMENTAL DESIGN: Sensitivity of HNSCC cells to 5-aza treatment was determined, then 5-aza activity was tested in vivo using xenografted tumors in a mouse model...
September 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28912369/customized-viral-immunotherapy-for-hpv-associated-cancer
#13
Matthew J Atherton, Kyle B Stephenson, Jonathan Pol, Fuan Wang, Charles Lefebvre, David F Stojdl, Jake K Nikota, Anna Dvorkin-Gheva, Andrew Nguyen, Lan Chen, Stephanie Johnson-Obaseki, Patrick J Villeneuve, Jean-Simon Diallo, Jim Dimitroulakos, Yonghong Wan, Brian D Lichty
The viral transforming proteins E6 and E7 make human papilloma virus positive (HPV+) malignancies an attractive target for cancer immunotherapy. However, therapeutic vaccination exerts limited efficacy in the setting of advanced disease. We designed a strategy to induce substantial specific immune responses against multiple epitopes of E6 and E7 proteins based on an attenuated transgene from HPV serotypes 16 and 18 that is incorporated into MG1-Maraba virotherapy (MG1-E6E7). Mutations introduced to the transgene abrogate the ability of E6 and E7 to perturb p53 and retinoblastoma, respectively, while maintaining the ability to invoke tumor-specific, multi-functional CD8+ T-cell responses...
September 14, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28899974/genomic-characterisation-of-vulvar-pre-cancers-identifies-distinct-molecular-subtypes-with-prognostic-significance
#14
Linda Nooij, Natalja Ter Haar, Dina Ruano, Natalia Rakislova, Vincent T H B M Smit, J Baptist M Z Trimbos, Jaume Ordi, Mariette Ie van Poelgeest, Tjalling Bosse, Tom van Wezel
Background Vulvar cancer (VC) can be sub-classified by human papilloma virus (HPV) status. HPV negative VCs frequently harbour TP53 mutations, however in-depth analysis of other potential molecular genetic alterations is lacking. We comprehensively assessed somatic mutations in a large series of vulvar (pre)cancers. Methods We performed targeted next generation sequencing (17 genes), p53 immunohistochemistry and HPV-testing on 36 VC and 82 precursors (sequencing cohort). Subsequently, the prognostic significance of the three subtypes identified in the sequencing cohort was assessed in a series of 236 VC-patients (follow-up cohort)...
September 12, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28894500/human-papilloma-virus-hpv-vaccination-questions-and-answers
#15
REVIEW
Allison Mejilla, Emily Li, Cheryl A Sadowski
No abstract text is available yet for this article.
September 2017: Canadian Pharmacists Journal: CPJ, Revue des Pharmaciens du Canada: RPC
https://www.readbyqxmd.com/read/28893480/production-of-highly-immunogenic-virus-like-particles-of-bovine-papillomavirus-type-6-in-silkworm-pupae
#16
Satoko Watanabe, Tetsuya Iizuka, Shinichi Hatama, Toru Kanno, Masaji Mase, Tomoyuki Shibahara
Bovine papillomaviruses (BPVs) are the causative agent of bovine teat papillomatosis, which can lead to severe economic losses in dairy cattle. Among the 14 identified BPV genotypes, BPV type 6 (BPV6) is the most frequently detected in teat papilloma lesions, and is therefore thought to play a major role in teat papillomatosis. To develop an effective vaccine against BPV6 infection, we produced virus-like particles of BPV6 (BPV6-VLP) in silkworm (Bombyx mori) pupae and purified these by heparin affinity chromatography using a single column...
September 8, 2017: Vaccine
https://www.readbyqxmd.com/read/28889772/human-papillomavirus-infection-and-intrauterine-growth-restriction-a-data-linkage-study
#17
Judith Helen Ford, Ming Li, Wendy Scheil, David Roder
OBJECTIVE: Using unbiased population data, to examine whether having a positive Pap smear, and thus a high probability of Human Papilloma Virus (HPV) infection, is a significant risk factor for intrauterine growth restriction (IUGR) in a subsequent pregnancy. STUDY DESIGN AND METHODS: Two independent population-based databases, namely the South Australian Perinatal Statistics Collection and the South Australian Cervical Screening Database, were deidentified and linked by the SANT Datalinkage Service...
September 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28888324/a-prize-for-cancer-prevention
#18
Harold Varmus
This year's Lasker-DeBakey Prize for Clinical Research to Douglas Lowy and John Schiller celebrates the science behind one of the greatest advances in the history of cancer research: the development of vaccines that prevent infection and thus prevent tumor induction by pathogenic strains of human papilloma virus (HPV).
September 21, 2017: Cell
https://www.readbyqxmd.com/read/28887001/major-findings-and-recent-advances-in-virus-like-particle-vlp-based-vaccines
#19
REVIEW
Mona O Mohsen, Lisha Zha, Gustavo Cabral-Miranda, Martin F Bachmann
Virus-like particles (VLPs) have made giant strides in the field of vaccinology over the last three decades. VLPs constitute versatile tools in vaccine development due to their favourable immunological characteristics such as their size, repetitive surface geometry, ability to induce both innate and adaptive immune responses as well as being safe templates with favourable economics. Several VLP-based vaccines are commercially available including vaccines against Human Papilloma Virus (HPV) such as Cervarix(®), Gardasil(®) & Gardasil9(®) and Hepatitis B Virus (HBV) including the 3rd generation Sci-B-Vac™...
September 5, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28885601/attitudes-towards-human-papilloma-virus-vaccination-in-the-latin-american-andean-region
#20
Oroma Nwanodi
This commentary explores the distribution of human papilloma virus (HPV) and HPV-related diseases, and factors affecting attitudes towards HPV, HPV-related diseases, and HPV vaccination in the Latin American Andean region. Lack of knowledge of HPV, known negative attitudes or incorrect assumptions about HPV, HPV-related diseases, and HPV vaccination provide a basis upon which to develop targeted HPV awareness and preventive health media campaigns. For maximal effect, media campaigns should use the internet, radio, and television to address health care providers, parents, and students...
September 8, 2017: Healthcare (Basel, Switzerland)
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