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https://www.readbyqxmd.com/read/29779068/new-insights-into-the-inflamed-tumor-immune-microenvironment-of-gastric-cancer-with-lymphoid-stroma-from-morphology-and-digital-analysis-to-gene-expression
#1
Irene Gullo, Patrícia Oliveira, Maria Athelogou, Gilza Gonçalves, Marta L Pinto, Joana Carvalho, Ana Valente, Hugo Pinheiro, Sara Andrade, Gabriela M Almeida, Ralf Huss, Kakoli Das, Patrick Tan, José C Machado, Carla Oliveira, Fátima Carneiro
BACKGROUND: Gastric cancer with lymphoid stroma (GCLS) is characterized by prominent stromal infiltration of T-lymphocytes. The aim of this study was to investigate GCLS biology through analysis of clinicopathological features, EBV infection, microsatellite instability (MSI), immune gene-expression profiling and PD-L1 status in neoplastic cells and tumor immune microenvironment. METHODS: Twenty-four GCLSs were analyzed by RNA in situ hybridization for EBV (EBER), PCR/fragment analysis for MSI, immunohistochemistry (PD-L1, cytokeratin, CD3, CD8), co-immunofluorescence (CK/PD-L1, CD68/PD-L1), NanoString gene-expression assay for immune-related genes and PD-L1 copy number alterations...
May 19, 2018: Gastric Cancer
https://www.readbyqxmd.com/read/29777406/can-bovine-leukemia-virus-be-related-to-human-breast-cancer-a-review-of-the-evidence
#2
REVIEW
Lucia Martinez Cuesta, Pamela Anahi Lendez, Maria Victoria Nieto Farias, Guillermina Laura Dolcini, Maria Carolina Ceriani
The incidence of breast cancer is continuously increasing worldwide, as influenced by many factors that act synergistically. In the last decade there was an increasing interest in the possible viral etiology of human breast cancer. Since then, many viruses have been associated with this disease (murine mammary tumor virus, MMTV; Epstein-Barr virus, EBV; and human papillomavirus, HPV). Recently, BLV has been identified in human breast cancers giving rise to the hypothesis that it could be one of the causative agents of this condition...
May 18, 2018: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/29776635/molecular-diagnostics-in-esophageal-and-gastric-neoplasms-2018-update
#3
REVIEW
Muhammad Zulfiqar, Martin H Bluth, Amarpreet Bhalla
Esophageal cancer (EC) is rapidly increasing in incidence in the United States. Genetic changes associated with the development of EC involve the p16, p53, and APC genes. Human epidermal growth factor 2 (HER-2) overexpression is seen in gastroesophageal junction carcinoma and a subset gastric carcinoma (GC). Interestingly, up to 50% cases of GC are related to Helicobacter pylori infection and up to 16% are related to EBV infection. Microsatellite instability is observed in up to 39% of GC and cell free nucleic acid analysis provides additional opportunities for diagnosis and prognosis of disease...
June 2018: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29769697/establishment-of-a-nasopharyngeal-carcinoma-cell-line-capable-of-undergoing-lytic-epstein-barr-virus-reactivation
#4
Yim Ling Yip, Weitao Lin, Wen Deng, Lin Jia, Kwok Wai Lo, Pierre Busson, Benjamin Vérillaud, Xuefeng Liu, Chi Man Tsang, Maria Li Lung, Sai Wah Tsao
Epstein-Barr virus (EBV) infects more than 90% of the adult human population. Undifferentiated nasopharyngeal carcinoma (NPC) is common in Southeast Asia, with a particularly high incidence among southern Chinese. The EBV genome can be detected in practically all cancer cells in undifferentiated NPC. The role of EBV in pathogenesis of undifferentiated NPC remains elusive. NPC cell lines are known to be difficult to establish in culture. The EBV+ve NPC cell lines, even if established in culture, rapidly lost their EBV episomes upon prolonged propagation...
May 16, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29765906/epstein-barr-virus-and-human-papillomaviruses-interactions-and-their-roles-in-the-initiation-of-epithelial-mesenchymal-transition-and-cancer-progression
#5
REVIEW
Farhan S Cyprian, Halema F Al-Farsi, Semir Vranic, Saghir Akhtar, Ala-Eddin Al Moustafa
Oncoviruses are implicated in around 20% of all human cancers including both solid and non-solid malignancies. Epstein-Barr virus (EBV) and human papillomaviruses (HPVs) are the most common oncoviruses worldwide. Currently, it is well established that onco-proteins of EBV (LMP1, LMP2A, and EBNA1) and high-risk HPVs (E5 and E6/E7) play an important role in the initiation and/or progression of several human carcinomas, including cervical, oral, and breast. More significantly, it has been recently pointed out that viral onco-proteins of EBV and high-risk HPVs can be co-present and consequently cooperate to initiate and/or amplify epithelial-mesenchymal transition (EMT), which is the hallmark of cancer progression and metastasis...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29765171/risks-and-protective-factors-for-triple-negative-breast-cancer-with-a-focus-on-micronutrients-and-infections
#6
Dagmar Horakova, Katerina Bouchalova, Karel Cwiertka, Ladislav Stepanek, Jana Vlckova, Helena Kollarova
Triple negative breast cancer (TNBC) is an aggressive form of breast cancer (BC) with a poor prognosis. Second, patients cannot benefit from targeted therapy, except for those with BRCA1/2 mutations, for whom poly (ADP-ribose) polymerase (PARP) inhibition therapy using olaparib has recently been approved. As global priorities continue to be epidemiological analysis of BC risk factors and early diagnosis, this review focuses on the risks and protective factors associated with TNBC. A PubMed keyword search for new knowledge on the risks and protective factors for TNBC was carried out...
May 15, 2018: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/29764843/poorly-cytotoxic-terminally-differentiated-cd56-neg-cd16-pos-nk-cells-accumulate-in-kenyan-children-with-burkitt-lymphomas
#7
Catherine S Forconi, Cormac P Cosgrove, Pryia Saikumar-Lakshmi, Christina E Nixon, Joslyn Foley, John Michael Ong'echa, Juliana A Otieno, Galit Alter, Christian Münz, Ann M Moormann
Natural killer (NK) cells are critical for restricting viral infections and mediating tumor immunosurveillance. Epstein-Barr virus (EBV) and Plasmodium falciparum malaria are known risk factors for endemic Burkitt lymphoma (eBL), the most common childhood cancer in equatorial Africa. To date, the composition and function of NK cells have not been evaluated in eBL etiology or pathogenesis. Therefore, using multiparameter flow cytometry and in vitro killing assays, we compared NK cells from healthy children and children diagnosed with eBL in Kenya...
May 22, 2018: Blood Advances
https://www.readbyqxmd.com/read/29760067/sequencing-based-counting-and-size-profiling-of-plasma-epstein-barr-virus-dna-enhance-population-screening-of-nasopharyngeal-carcinoma
#8
W K Jacky Lam, Peiyong Jiang, K C Allen Chan, Suk H Cheng, Haiqiang Zhang, Wenlei Peng, O Y Olivia Tse, Yu K Tong, Wanxia Gai, Benny C Y Zee, Brigette B Y Ma, Edwin P Hui, Anthony T C Chan, John K S Woo, Rossa W K Chiu, Y M Dennis Lo
Circulating tumor-derived DNA testing for cancer screening has recently been demonstrated in a prospective study on identification of nasopharyngeal carcinoma (NPC) among 20,174 asymptomatic individuals. Plasma EBV DNA, a marker for NPC, was detected using real-time PCR. While plasma EBV DNA was persistently detectable in 97.1% of the NPCs identified, ∼5% of the general population had transiently detectable plasma EBV DNA. We hypothesized that EBV DNA in plasma of subjects with or without NPC may have different molecular characteristics...
May 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29754771/epstein-barr-virus-specific-cytokine-induced-killer-cells-for-treatment-of-epstein-barr-virus-related-malignant-lymphoma
#9
Lisa-Marie Pfeffermann, Verena Pfirrmann, Sabine Huenecke, Melanie Bremm, Halvard Bonig, Hans-Michael Kvasnicka, Thomas Klingebiel, Peter Bader, Eva Rettinger
BACKGROUND: Prolonged immunosuppression or delayed T-cell recovery may favor Epstein-Barr virus (EBV) infection or reactivation after allogeneic hematopoietic stem cell transplantation (HSCT), which can lead to post-transplant lymphoproliferative disease (PTLD) and high-grade malignant B-cell lymphoma. Cytokine-induced killer (CIK) cells with dual specific anti-tumor and virus-specific cellular immunity may be applied in this context. METHODS: CIK cells with EBV-specificity were generated from peripheral blood mononuclear cells (PBMCs), expanded in the presence of interferon-γ, anti-CD3, interleukin (IL)-2 and IL-15 and were pulsed twice with EBV consensus peptide pool...
May 10, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29751565/upregulation-of-the-chemokine-receptor-ccr2b-in-epstein%C3%A2-barr-virus-positive-burkitt-lymphoma-cell-lines-with-the-latency-iii-program
#10
Svetlana Kozireva, Zhanna Rudevica, Mikhail Baryshev, Ainars Leonciks, Elena Kashuba, Irina Kholodnyuk
CCR2 is the cognate receptor to the chemokine CCL2. CCR2⁻CCL2 signaling mediates cancer progression and metastasis dissemination. However, the role of CCR2⁻CCL2 signaling in pathogenesis of B-cell malignancies is not clear. Previously, we showed that CCR2B was upregulated in ex vivo peripheral blood B cells upon Epstein‒Barr virus (EBV) infection and in established lymphoblastoid cell lines with the EBV latency III program. EBV latency III is associated with B-cell lymphomas in immunosuppressed patients...
May 3, 2018: Viruses
https://www.readbyqxmd.com/read/29743367/a-screen-for-epstein-barr-virus-proteins-that-inhibit-the-dna-damage-response-reveals-a-novel-histone-binding-protein
#11
Ting-Hin Ho, Justine Sitz, Qingtang Shen, Ariane Leblanc-Lacroix, Eric I Campos, Ivan Borozan, Edyta Marcon, Jack Greenblatt, Amelie Fradet-Turcotte, Dong-Yan Jin, Lori Frappier
To replicate and persist in human cells, linear double-stranded (ds) DNA viruses, such as Epstein-Barr virus (EBV), must overcome the host DNA damage response (DDR) that is triggered by the viral genomes. Since this response is necessary to maintain cellular genome integrity, its inhibition by EBV is likely an important factor in the development of cancers associated with EBV infection, including gastric carcinoma. Here we present the first extensive screen of EBV proteins that inhibit dsDNA break signaling...
May 9, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29740418/inhibition-of-tip60-reduces-lytic-and-latent-gene-expression-of-kaposi-s-sarcoma-associated-herpes-virus-kshv-and-proliferation-of-kshv-infected-tumor-cells
#12
Sydney Simpson, Guillaume Fiches, Maxime J Jean, Michael Dieringer, James McGuinness, Sinu P John, Meir Shamay, Prashant Desai, Jian Zhu, Netty G Santoso
Kaposi's sarcoma-associated herpesvirus (KSHV) is an oncogenic virus responsible for the development of Kaposi's sarcoma, primary effusion lymphoma (PEL), and Multicentric Castleman's disease in immunocompromised individuals. Despite the burden of these diseases there are few treatment options for afflicted individuals, due in part to our limited understanding of virus-host interactions. Tip60, a histone aceytltransferase (HAT) has been previously shown to interact with both the KSHV latency associated nuclear antigen protein (LANA), which is the main factor in maintaining the viral latent state, and ORF36, a viral kinase expressed in the lytic phase...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29736176/knockdown-of-the-lncrna-snhg8-inhibits-cell-growth-in-epstein-barr-virus-associated-gastric-carcinoma
#13
Jing Liu, Chunxia Yang, Yufang Gu, Chong Li, Huamei Zhang, Wenfang Zhang, Xueqing Wang, Nan Wu, Chunyan Zheng
Background: Epstein-Barr virus (EBV) infection is causatively associated with a variety of human cancers, including gastric cancer (GC), which has one of the highest mortality rates of all human cancers. Long non-coding RNAs (lncRNAs) show important regulatory roles in human GC. SNHG8 is a recently identified lncRNA that was reported to show abnormal expression pattern in GC. However, little is known of its biological function in EBV-associated GC. Methods: We used cell viability, colony formation and cell cycle assays to investigate the roles of lncRNA SNHG8 in the cell growth of EBV-associated GC...
2018: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29732319/epstein-barr-virus-in-gliomas-cause-association-or-artifact
#14
REVIEW
Saghir Akhtar, Semir Vranic, Farhan Sachal Cyprian, Ala-Eddin Al Moustafa
Gliomas are the most common malignant brain tumors and account for around 60% of all primary central nervous system cancers. Glioblastoma multiforme (GBM) is a grade IV glioma associated with a poor outcome despite recent advances in chemotherapy. The etiology of gliomas is unknown, but neurotropic viruses including the Epstein-Barr virus (EBV) that is transmitted via salivary and genital fluids have been implicated recently. EBV is a member of the gamma herpes simplex family of DNA viruses that is known to cause infectious mononucleosis (glandular fever) and is strongly linked with the oncogenesis of several cancers, including B-cell lymphomas, nasopharyngeal, and gastric carcinomas...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29729943/phenotype-penetrance-and-treatment-of-133-ctla-4-insufficient-individuals
#15
Charlotte Schwab, Annemarie Gabrysch, Peter Olbrich, Virginia Patiño, Klaus Warnatz, Daniel Wolff, Akihiro Hoshino, Masao Kobayashi, Kohsuke Imai, Masatoshi Takagi, Ingunn Dybedal, Jamanda A Haddock, David Sansom, Jose M Lucena, Maximilian Seidl, Annette Schmitt-Gräff, Veronika Reiser, Florian Emmerich, Natalie Frede, Alla Bulashevska, Ulrich Salzer, Desirée Schubert, Seiichi Hayakawa, Satoshi Okada, Maria Kanariou, Zeynep Yesim Kucuk, Hugo Chapdelaine, Lenka Petruzelkova, Zdenek Sumnik, Anna Sediva, Mary Slatter, Peter D Arkwright, Andrew Cant, Hanns-Martin Lorenz, Thomas Giese, Vassilios Lougaris, Alessandro Plebani, Christina Price, Kathleen E Sullivan, Michel Moutschen, Jiri Litzman, Tomas Freiberger, Frank L van de Veerdonk, Mike Recher, Michael H Albert, Fabian Hauck, Suranjith Seneviratne, Jana Pachlopnik Schmid, Antonios Kolios, Gary Unglik, Christian Klemann, Carsten Speckmann, Stephan Ehl, Alan Leichtner, Richard Blumberg, Andre Franke, Scott Snapper, Sebastian Zeissig, Charlotte Cunningham-Rundles, Lisa Giulino-Roth, Olivier Elemento, Gregor Dückers, Tim Niehues, Eva Fronkova, Veronika Kanderová, Craig D Platt, Janet Chou, Talal Chatila, Raif Geha, Elizabeth McDermott, Su Bunn, Monika Kurzai, Ansgar Schulz, Laia Alsina, Ferran Casals, Angela Deyà-Martinez, Sophie Hambleton, Hirokazu Kanegane, Kjetil Taskén, Olaf Neth, Bodo Grimbacher
BACKGROUND: Cytotoxic-T-lymphocyte-antigen-4 (CTLA-4) is a negative immune regulator. Heterozygous CTLA4 germline mutations can cause a complex immune dysregulation syndrome in humans. OBJECTIVE: To characterize the penetrance, the clinical features and the best treatment options in 133 CTLA4 mutation carriers. METHODS: Genetics, clinical features, laboratory values, and outcome of treatment options were assessed in a worldwide cohort of CTLA4 mutation carriers...
May 3, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29729036/epstein-barr-virus-positivity-among-surgically-resected-intramucosal-gastric-cance
#16
Katsuyuki Murai, Naomi Kakushima, Takashi Sugino, Masao Yoshida, Noboru Kawata, Masaki Tanaka, Kohei Takizawa, Koji Muramatu, Kimihide Kusafuka, Etsuro Bando, Hiroyuki Ono
Epstein-Barr virus-associated gastric cancer (EBV-GC) accounts for approximately 8% of gastric cancers. However, little is known regarding intramucosal EBV-GC. The present study aimed to evaluate endoscopic and clinicopathological characteristics of intramucosal EBV-GC. Pathological data of 172 patients with 173 intramucosal gastric cancers who received gastrectomy with lymph node dissection were obtained for review. EBV-encoded small RNA in situ hybridization (EBER-ISH) was performed using tissue microarray block...
May 5, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29723986/ebv-positive-diffuse-large-b-cell-lymphoma-and-chronic-lymphocytic-leukemia-patients-exhibit-increased-anti-dutpase-antibodies
#17
Marshall Williams, Maria Eugenia Ariza
The Epstein-Barr virus (EBV), which is a ubiquitous γ-herpesvirus, establishes a latent infection in more than 90% of the global adult population. EBV-associated malignancies have increased by 14.6% over the last 20 years, and account for approximately 1.5% of all cancers worldwide and 1.8% of all cancer deaths. However, the potential involvement/contribution of lytic proteins to the pathophysiology of EBV-associated cancers is not well understood. We have previously demonstrated that the EBV-deoxyuridine triphosphate nucleotidohydrolase (dUTPase) modulates innate and adaptive immune responses by engaging the Toll-Like Receptor 2 (TLR2), which leads to the modulation of downstream genes involved in oncogenesis, chronic inflammation, and in effector T-cell function...
May 1, 2018: Cancers
https://www.readbyqxmd.com/read/29719817/the-role-of-epstein-barr-virus-in-cervical-cancer-a-brief-update
#18
REVIEW
Semir Vranic, Farhan Sachal Cyprian, Saghir Akhtar, Ala-Eddin Al Moustafa
Epstein-Barr virus (EBV) belongs to the group of gamma-herpes viruses and was the first recognized human oncovirus. EBV is responsible for infectious mononucleosis and multiple lymphoid and epithelial malignancies including B-cell lymphomas (Burkitt lymphoma, Hodgkin lymphoma, and post-transplant lymphoproliferative disorder), various T-cell/NK lymphoproliferative disorders, nasopharyngeal carcinoma, and gastric carcinoma, respectively. In addition, the presence of EBV has been documented in other cancers including breast, prostate, oral, and salivary gland carcinomas...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29718970/the-current-status-of-clinical-trials-focusing-on-nasopharyngeal-carcinoma-a-comprehensive-analysis-of-clinicaltrials-gov-database
#19
Hao Peng, Lei Chen, Yu-Pei Chen, Wen-Fei Li, Ling-Long Tang, Ai-Hua Lin, Ying Sun, Jun Ma
PURPOSE: Clinical Trials have emerged as the main force in driving the development of medicine. However, little is known about the current status of clinical trials regarding nasopharyngeal carcinoma (NPC). This study aimed at providing a comprehensive landscape of NPC-related trials on the basis of ClinicalTrials.gov database. PATIENTS AND METHODS: We used the keyword "nasopharyngeal carcinoma" to search the ClinicalTrials.gov database and assessed the characteristics of these trials...
2018: PloS One
https://www.readbyqxmd.com/read/29718378/evaluation-of-total-and-iga-specific-antibody-targeting-epstein-barr-virus-glycoprotein-350-and-nasopharyngeal-carcinoma-risk
#20
Anna E Coghill, Wei Bu, Wan-Lun Hsu, Hanh Nguyen, Kelly J Yu, Yin-Chu Chien, Chien-Jen Chen, Jeffrey I Cohen, Allan Hildesheim
Background: We previously reported that higher levels of antibody targeting EBV glycoprotein350 (gp350), an EBV vaccine candidate, were protective against nasopharyngeal carcinoma (NPC) in genetically high-risk families from Taiwan. The current study attempted to extend this association to a general population cohort. Methods: We compared total and IgA-specific gp350 antibody levels in 35 incident NPC cases and 81 disease-free controls from the Cancer Screening Program in Taiwan (23,943 individuals recruited from 1991-1992)...
April 28, 2018: Journal of Infectious Diseases
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