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EBV, Cancer

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https://www.readbyqxmd.com/read/29331266/human-papilloma-virus-specific-t-cells-can-be-generated-from-na%C3%A3-ve-t-cells-for-use-as-an-immunotherapeutic-strategy-for-immunocompromised-patients
#1
Sarah E McCormack, Conrad Russell Y Cruz, Kaylor E Wright, Allison B Powell, Haili Lang, Cornelia Trimble, Michael D Keller, Ephraim Fuchs, Catherine M Bollard
Human papilloma virus (HPV) is a known cause of cervical cancer, squamous cell carcinoma and laryngeal cancer. Although treatments exist for HPV-associated malignancies, patients unresponsive to these therapies have a poor prognosis. Recent findings from vaccine studies suggest that T-cell immunity is essential for disease control. Because Epstein-Barr Virus (EBV)-specific T cells have been highly successful in treating or preventing EBV-associated tumors, we hypothesized that the development of a manufacturing platform for HPV-specific T cells from healthy donors could be used in a third-party setting to treat patients with high-risk/relapsed HPV-associated cancers...
January 10, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29329079/the-interactome-of-ebv-lmp1-evaluated-by-proximity-based-bioid-approach
#2
Mark A Rider, Mujeeb R Cheerathodi, Stephanie N Hurwitz, Dingani Nkosi, Lauren A Howell, Deanna C Tremblay, Xia Liu, Fanxiu Zhu, David G Meckes
Epstein-Barr virus LMP1 is an oncoprotein required for immortalizing B lymphocytes and also plays important roles in transforming non-lymphoid tissue. The discovery of LMP1 protein interactions will likely generate targets to treat EBV-associated cancers. Here, we define the broader LMP1 interactome using the recently developed BioID method. Combined with mass spectrometry, we identified over 1000 proteins across seven independent experiments with direct or indirect relationships to LMP1. Pathway analysis suggests that a significant number of the proteins identified are involved in signal transduction and protein or vesicle trafficking...
January 9, 2018: Virology
https://www.readbyqxmd.com/read/29325854/considerations-in-the-diagnosis-of-oral-hairy-leukoplakia-an-institutional-experience
#3
Andres Flores-Hidalgo, Si On Lim, Alice E Curran, Ricardo J Padilla, Valerie Murrah
OBJECTIVE: We report here the 10-year experience with oral hairy leukoplakia (OHL) at the Division of Oral and Maxillofacial Pathology at the University of North Carolina at Chapel Hill, NC, USA. STUDY DESIGN: All the associated hematoxylin and eosin and Epstein-Barr virus encoding region in situ hybridization slides of OHL cases between January 1, 2008, and February 1, 2017, were retrieved and reviewed. Collected demographic characteristics, clinical presentation, medical and social histories were reviewed and reported...
November 15, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29311309/signaling-by-the-epstein-barr-virus-lmp1-protein-induces-potent-cytotoxic-cd4-and-cd8-t-cell-responses
#4
Il-Kyu Choi, Zhe Wang, Qiang Ke, Min Hong, Yu Qian, Xiujuan Zhao, Yuting Liu, Hye-Jung Kim, Jerome Ritz, Harvey Cantor, Klaus Rajewsky, Kai W Wucherpfennig, Baochun Zhang
The B-lymphotropic Epstein-Barr virus (EBV), pandemic in humans, is rapidly controlled on initial infection by T cell surveillance; thereafter, the virus establishes a lifelong latent infection in the host. If surveillance fails, fatal lymphoproliferation and lymphomagenesis ensue. The initial T cell response consists of predominantly CD8+ cytotoxic T cells and a smaller expansion of CD4+ cells. A major approach to treating EBV-associated lymphomas is adoptive transfer of autologous or allogeneic T cells that are stimulated/expanded on EBV-transformed B cells...
January 8, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29301829/identification-of-a-novel-ebv-based-antibody-risk-stratification-signature-for-early-detection-of-nasopharyngeal-carcinoma-in-taiwan
#5
Anna E Coghill, Ruth M Pfeiffer, Carla Proietti, Wan-Lun Hsu, Yin-Chu Chien, Lea Lekieffre, Lutz Krause, Andy Teng, Jozelyn Pablo, Kelly J Yu, Pei-Jen Lou, Cheng-Ping Wang, Zhiwei Liu, Chien-Jen Chen, Jaap M Middeldorp, Jason P Mulvenna, Jeffrey Bethony, Allan Hildesheim, Denise L Doolan
BACKGROUND: Epstein-Barr virus (EBV) is necessary for the development of nasopharyngeal carcinoma (NPC). By adulthood, ~90% of individuals test EBV-positive, but only a fraction develop cancer. Factors that identify which individuals are most likely to develop disease, including differential antibody response to the virus, could facilitate detection at early stages when treatment is most effective. METHODS: We measured anti-EBV IgG and IgA antibody responses in 607 Taiwanese individuals...
January 4, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29284791/cadherin-6-is-activated-by-epstein-barr-virus-lmp1-to-mediate-emt-and-metastasis-as-an-interplay-node-of-multiple-pathways-in-nasopharyngeal-carcinoma
#6
L-L Zuo, J Zhang, L-Z Liu, Q Zhou, S-J Du, S-Y Xin, Z-P Ning, J Yang, H-B Yu, W-X Yue, J Wang, F-X Zhu, G-Y Li, J-H Lu
Nasopharyngeal carcinoma (NPC) is an epithelial malignancy, which is notorious among head-and-neck cancers with its metastatic feature. Epstein-Barr virus (EBV) infection plays a fundamental role in NPC development with the mechanism is not well understood. Here we demonstrate that EBV oncoprotein LMP1 drives EMT and metastasis of NPC by reactivating the adhesion molecule, cadherin 6 (CDH6), which normally occurs in embryogenesis with unknown role in NPC. CDH6 was found to be upregulated in LMP1-positive NPC tissues, and was identified as a target of the epithelium-specific miR-203...
December 22, 2017: Oncogenesis
https://www.readbyqxmd.com/read/29284539/prognostic-values-of-the-integrated-model-incorporating-the-volume-of-metastatic-regional-cervical-lymph-node-and-pretreatment-serum-epstein-barr-virus-dna-copy-number-in-predicting-distant-metastasis-in-patients-with-n1-nasopharyngeal-carcinoma
#7
Ji-Jin Yao, Guan-Qun Zhou, Ya-Qin Wang, Si-Yang Wang, Wang-Jian Zhang, Ya-Nan Jin, Fan Zhang, Li Li, Li-Zhi Liu, Zhi-Bin Cheng, Jun Ma, Zhen-Yu Qi, Ying Sun
BACKGROUND: According to the 7th edition of the American Joint Committee on Cancer (AJCC) staging system, over 50% of patients with nasopharyngeal carcinoma (NPC) have N1 disease at initial diagnosis. However, patients with N1 NPC are relatively under-researched, and the metastasis risk of this group is not well-stratified. This study aimed to evaluate the prognostic values of gross tumor volume of metastatic regional lymph node (GTVnd) and pretreatment serum copy number of Epstein-Barr virus (EBV) DNA in predicting distant metastasis of patients with N1 NPC, and to develop an integrated prognostic model that incorporates GTVnd and EBV DNA copy number for this group of patients...
December 29, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/29259270/ifn%C3%AE-induces-pd-l1-overexpression-by-jak2-stat1-irf-1-signaling-in-ebv-positive-gastric-carcinoma
#8
Ji Wook Moon, Su-Kang Kong, Byung Soo Kim, Hyun Ji Kim, Hyangsoon Lim, Kyeonga Noh, Younghye Kim, Jung-Woo Choi, Ju-Han Lee, Young-Sik Kim
Programmed death-ligand 1 (PD-L1) acts as an immune checkpoint inhibitor in various cancers. PD-L1 is known to be more frequently expressed in EBV (+) gastric cancer (GC). However, the mechanisms underlying the regulation of PD-L1 expression in EBV (+) GC remain unclear. We investigated the basal and inducible PD-L1 expressions in GC cells. PD-L1 expression was upregulated upon treatment with IFNγ in both EBV (-) and EBV (+) GC cells. Upon stimulation with the same concentration of IFNγ for 24 h, EBV (+) SNU-719 cells showed dramatically higher PD-L1 expression levels by activating JAK2/STAT1/IRF-1 signaling than those of EBV (-) AGS cells...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29246182/expression-and-clinical-value-of-programmed-cell-death-ligand-1-pd-l1-in-diffuse-large-b-cell-lymphoma-a-retrospective-study
#9
Li-Yang Hu, Xiao-Lu Xu, Hui-Lan Rao, Jie Chen, Ren-Chun Lai, Hui-Qiang Huang, Wen-Qi Jiang, Tong-Yu Lin, Zhong-Jun Xia, Qing-Qing Cai
BACKGROUND: The programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) pathway inhibits the activation of T cells and plays a crucial role in the negative regulation of cellular and humoral immune responses. Diffuse large B-cell lymphoma (DLBCL) is the most common lymphoid malignancy in adults. In the present study, we aimed to detect the expression of PD-L1 in DLBCL and to analyze its relationship with prognosis. METHODS: We reviewed medical records of 204 newly diagnosed DLBCL patients in Sun Yat-sen University Cancer Center between October 2005 and August 2012...
December 16, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/29235459/pi3k%C3%AE-activates-e2f1-synthesis-in-response-to-mrna-translation-stress
#10
Sivakumar Vadivel Gnanasundram, Slovénie Pyndiah, Chrysoula Daskalogianni, Kate Armfield, Karin Nylander, Joanna B Wilson, Robin Fåhraeus
The c-myc oncogene stimulates ribosomal biogenesis and protein synthesis to promote cellular growth. However, the pathway by which cells sense and restore dysfunctional mRNA translation and how this is linked to cell proliferation and growth is not known. We here show that mRNA translation stress in cis triggered by the gly-ala repeat sequence of Epstein-Barr virus (EBV)-encoded EBNA1, results in PI3Kδ-dependent induction of E2F1 mRNA translation with the consequent activation of c-Myc and cell proliferation...
December 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/29234119/non-malignant-epithelial-cells-preferentially-proliferate-from-nasopharyngeal-carcinoma-biopsy-cultured-under-conditionally-reprogrammed-conditions
#11
Fenggang Yu, Yanan Lu, Lin Tao, Yan-Yi Jiang, De-Chen Lin, Lingzhi Wang, Fredrik Petersson, Hironori Yoshiyama, Phillip H Koeffler, Boon-Cher Goh, Kwok Seng Loh
Nasopharyngeal carcinoma (NPC) is an invasive cancer with particularly high incidence in Southern China and Southeast Asia. The study of NPC is greatly hampered by the lack of reliable cell lines due to the loss of EBV genome and HeLa cell contamination. Conditional reprogramming (CR) cell culture technique has been reported for rapid and efficient establishment of patient-derived normal and tumor cell cultures. The purpose of this study was to assess this method to culture NPC patient-derived primary tumor cells...
December 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29230817/ebv-encoded-mirnas-target-atm-mediated-response-in-nasopharyngeal-carcinoma
#12
Raymond W-M Lung, Pok-Man Hau, Ken H-O Yu, Kevin Y Yip, Joanna H-M Tong, W-P Chak, Anthony W-H Chan, Ka-Hei Lam, Angela K-F Lo, Edith K-Y Tin, Shuk-Ling Chau, Jesse C-S Pang, Johnny S-H Kwan, Pierre Busson, Lawrence S Young, Lee-Fah Yap, Sai-Wah Tsao, Ka-Fai To, Kwok-Wai Lo
Nasopharyngeal carcinoma (NPC) is a highly invasive epithelial malignancy that is prevalent in southern China and Southeast Asia. It is consistently associated with latent Epstein-Barr virus (EBV) infection. In NPC, miR-BARTs, the EBV-encoded miRNAs derived from BamH1-A rightward transcripts are abundantly expressed and contribute to cancer development by targeting various cellular and viral genes. In this study, we establish a comprehensive transcriptional profile of EBV-encoded miRNAs in a panel of NPC patient-derived xenografts and an EBV-positive NPC cell line by small RNA sequencing...
December 12, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/29228057/n-acetylcysteine-nac-ameliorates-epstein-barr-virus-latent-membrane-protein-1-induced-chronic-inflammation
#13
Xiao Gao, Eirini-Maria Lampraki, Sarwah Al-Khalidi, Muhammad Asif Qureshi, Rhea Desai, Joanna Beatrice Wilson
Chronic inflammation results when the immune system responds to trauma, injury or infection and the response is not resolved. It can lead to tissue damage and dysfunction and in some cases predispose to cancer. Some viruses (including Epstein-Barr virus (EBV)) can induce inflammation, which may persist even after the infection has been controlled or cleared. The damage caused by inflammation, can itself act to perpetuate the inflammatory response. The latent membrane protein 1 (LMP1) of EBV is a pro-inflammatory factor and in the skin of transgenic mice causes a phenotype of hyperplasia with chronic inflammation of increasing severity, which can progress to pre-malignant and malignant lesions...
2017: PloS One
https://www.readbyqxmd.com/read/29199150/peroxiredoxin-2-and-zinc-alpha-2-glycoprotein-as-potentially-combined-novel-salivary-biomarkers-for-early-detection-of-oral-squamous-cell-carcinoma-using-proteomic-approaches
#14
Chukkris Heawchaiyaphum, Chamsai Pientong, Pensiri Phusingha, Patravoot Vatanasapt, Supannee Promthet, Jureerut Daduang, Watchareporn Teeramatwanich, Bunkerd Kongyingyoes, Jureeporn Chuerduangphui, Tipaya Ekalaksananan
No effective screening method is available for oral squamous cell carcinoma (OSCC) that is recognized to influence by environmental factors as well as human papillomavirus (HPV) and Epstein-Barr virus (EBV). Therefore, we sought to identify salivary biomarkers for screening of OSCC with or without HPV and/or EBV infection. Saliva, lesion and oral exfoliated cells were collected from OSCC patients and cancer-free controls (CFCs) and grouped depending on their HPV- and EBV-infection status. Salivary protein was precipitated and subjected to 2-dimensional gel electrophoresis...
November 30, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/29197545/potential-cancer-chemopreventive-and-anticancer-constituents-from-the-fruits-of-ficus-hispida-l-f-moraceae
#15
Jie Zhan, Feng Feng, Wei Qu, Cili Wang, Worapong Kitdamrongtham, Aranya Manosroi, Jiradej Manosroi, Harukuni Tokuda, Masahiko Abe, Toshihiro Akihisa
ETHNOPHARMACOLOGICAL RELEVANCE: Ficus hispida L.f. (Moraceae) has been used as alternative for traditional medicine in the treatment of various ailments including cancer-cure. The aim of this study was to evaluate the cancer chemopreventive and anticancer activities of crude extracts of F. hispida, with the objective to screen the inhibition of Epstein-Barr virus early antigen, and cytotoxic active components, and provide foundation for potential applications of this promising medical plant...
November 29, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29190698/profiles-of-a-broad-spectrum-of-epigenetic-dna-modifications-in-normal-and-malignant-human-cell-lines-proliferation-rate-is-not-the-major-factor-responsible-for-the-5-hydroxymethyl-2-deoxycytidine-level-in-cultured-cancerous-cell-lines
#16
Marek Foksinski, Ewelina Zarakowska, Daniel Gackowski, Magdalena Skonieczna, Karolina Gajda, Dorota Hudy, Anna Szpila, Karol Bialkowski, Marta Starczak, Anna Labejszo, Jaroslaw Czyz, Joanna Rzeszowska-Wolny, Ryszard Olinski
Active demethylation of 5-methylcytosine moiety in DNA occurs by its sequential oxidation to 5-hydroxymethylcytosine, 5-formylcytosine and 5-carboxycytosine, catalysed by enzymes of the Ten-Eleven Translocation family proteins (TETs 1, 2 and 3). Here we analyzed for the first time all the intermediate products of DNA demethylation pathway in the form of deoxynucleosides (5-methyl-2'-deoxycytidine, 5-(hydroxymethyl)-2'-deoxycytidine, 5-formyl-2'-deoxycytidine and 5-carboxy-2'-deoxycytidine as well as 5-(hydroxymethyl)-2'-deoxyuridine) using automated isotope-dilution online two-dimensional ultra-performance liquid chromatography with tandem mass spectrometry...
2017: PloS One
https://www.readbyqxmd.com/read/29186062/viral-oncology-molecular-biology-and-pathogenesis
#17
REVIEW
Uyen Ngoc Mui, Christopher T Haley, Stephen K Tyring
Oncoviruses are implicated in approximately 12% of all human cancers. A large number of the world's population harbors at least one of these oncoviruses, but only a small proportion of these individuals go on to develop cancer. The interplay between host and viral factors is a complex process that works together to create a microenvironment conducive to oncogenesis. In this review, the molecular biology and oncogenic pathways of established human oncoviruses will be discussed. Currently, there are seven recognized human oncoviruses, which include Epstein-Barr Virus (EBV), Human Papillomavirus (HPV), Hepatitis B and C viruses (HBV and HCV), Human T-cell lymphotropic virus-1 (HTLV-1), Human Herpesvirus-8 (HHV-8), and Merkel Cell Polyomavirus (MCPyV)...
November 29, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29179454/plasma-microrna-alterations-between-egfr-activating-mutational-nsclc-patients-with-and-without-primary-resistance-to-tki
#18
Yihan Ma, Xiaoyan Pan, Peiqi Xu, Yanjun Mi, Wenyi Wang, Xiaoting Wu, Qi He, Xinli Liu, Weiwei Tang, Han-Xiang An
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) have obtained excellent therapeutic effects against non-small cell lung cancer (NSCLC) harboring activating EGFR mutations. However, some patients have exhibited primary resistance which becomes a major obstacle in effective treatment of NSCLC. The mechanisms of EGFR-TKIs resistance involved are still poorly understood. Many studies suggest that miRNAs play an important role in regulating drug sensitivity of EGFR-TKIs. The aim of the present study was to examine differentially expressed miRNAs in plasma between EGFR-TKIs sensitive and EGFR-TKIs primary resistance patients...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29160853/therapeutic-strategies-against-epstein-barr-virus-associated-cancers-using-proteasome-inhibitors
#19
REVIEW
Kwai Fung Hui, Kam Pui Tam, Alan Kwok Shing Chiang
Epstein-Barr virus (EBV) is closely associated with several lymphomas (endemic Burkitt lymphoma, Hodgkin lymphoma and nasal NK/T-cell lymphoma) and epithelial cancers (nasopharyngeal carcinoma and gastric carcinoma). To maintain its persistence in the host cells, the virus manipulates the ubiquitin-proteasome system to regulate viral lytic reactivation, modify cell cycle checkpoints, prevent apoptosis and evade immune surveillance. In this review, we aim to provide an overview of the mechanisms by which the virus manipulates the ubiquitin-proteasome system in EBV-associated lymphoid and epithelial malignancies, to evaluate the efficacy of proteasome inhibitors on the treatment of these cancers and discuss potential novel viral-targeted treatment strategies against the EBV-associated cancers...
November 21, 2017: Viruses
https://www.readbyqxmd.com/read/29155997/immune-activation-and-benefit-from-avelumab-in-ebv-positive-gastric-cancer
#20
Anshuman Panda, Janice M Mehnert, Kim M Hirshfield, Greg Riedlinger, Sherri Damare, Tracie Saunders, Michael Kane, Levi Sokol, Mark N Stein, Elizabeth Poplin, Lorna Rodriguez-Rodriguez, Ann W Silk, Joseph Aisner, Nancy Chan, Jyoti Malhotra, Melissa Frankel, Howard L Kaufman, Siraj Ali, Jeffrey S Ross, Eileen P White, Gyan Bhanot, Shridar Ganesan
Response to immune checkpoint therapy can be associated with a high mutation burden, but other mechanisms are also likely to be important. We identified a patient with metastatic gastric cancer with meaningful clinical benefit from treatment with the anti-programmed death-ligand 1 (PD-L1) antibody avelumab. This tumor showed no evidence of high mutation burden or mismatch repair defect but was strongly positive for presence of Epstein-Barr virus (EBV) encoded RNA. Analysis of The Cancer Genome Atlas gastric cancer data (25 EBV+, 80 microsatellite-instable [MSI], 310 microsatellite-stable [MSS]) showed that EBV-positive tumors were MSS...
November 15, 2017: Journal of the National Cancer Institute
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