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https://www.readbyqxmd.com/read/28339079/a-p110%C3%AE-specific-inhibitor-combined-with-bortezomib-blocks-drug-resistance-properties-of-ebv-related-b-cell-origin-cancer-cells-via-regulation-of-nf-%C3%AE%C2%BAb
#1
Ga Bin Park, Yoon Hee Chung, Jee-Yeong Jeong, Daejin Kim
Epstein-Barr virus (EBV) infection is closely related to carcinogenesis of various cancers, and is also associated with the development of drug resistance in cancer stem cells. However, in EBV-positive cancer cells, the mechanistic details of the downstream signaling and the connection of PI3K with the NF-κB pathway for development of drug resistance remain controversial. Diffuse large B-cell lymphoma (DLBCL) and multiple myeloma (MM) cells infected by EBV display drug resistance-related proteins (MDR1, MRP1 and MRP2) and stem cell markers (OCT4 and SOX2)...
March 21, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28333576/epstein-barr-virus-lytic-reactivation-activates-b-cells-polyclonally-and-induces-activation-induced-cytidine-deaminase-expression-a-mechanism-underlying-autoimmunity-and-its-contribution-to-graves-disease
#2
Keiko Nagata, Keisuke Kumata, Yuji Nakayama, Yukio Satoh, Hirotsugu Sugihara, Sayuri Hara, Michiko Matsushita, Satoshi Kuwamoto, Masako Kato, Ichiro Murakami, Kazuhiko Hayashi
Graves' disease is an autoimmune disease that results in and is the most common cause of hyperthyroidism, and the reactivation of persisting Epstein-Barr virus (EBV) in B lymphocytes induces the differentiation of host B cells into plasma cells. We previously reported that some EBV-infected B cells had thyrotropin receptor antibodies (TRAbs) as surface immunoglobulins (Igs), and EBV reactivation induced these TRAb+EBV+ cells to produce TRAbs. EBV reactivation induces Ig production from host B cells. The purpose of the present study was to examine total Ig productions from B cell culture fluids and to detect activation-induced cytidine deaminase (AID), nuclear factor kappa B (NF-κB), and EBV latent membrane protein (LMP) 1 in culture B cells during EBV reactivation induction and then we discussed the mechanisms of EBV reactivation-induced Ig production in relation to autoimmunity...
March 23, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28332898/herpes-simplex-virus-1-and-cytomegalovirus-dnas-detection-in-the-inner-ear-of-implanted-patients-with-non-congenital-infection
#3
Walter Di Nardo, Roberta Anzivino, Paola Cattani, Rosaria Santangelo, Eugenio De Corso, Gaetano Paludetti
CONCLUSIONS: The detection of cytomegalovirus (CMV) and herpes simplex virus-1 (HSV-1) genome in perilymph of patients with negative serology or clinical history for congenital infections supports the hypothesis that Herpesviridae, even after acquired postnatal infections, could remain in latent phase in the spiral ganglion and damage the cochlea by a possible subsequent reactivation. Further studies are needed to identify the markers of such reactivation. OBJECTIVE: To identify the presence of certain viral species in the endolabyrinthic fluid of deaf patients with non-congenital infection...
March 23, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28332346/evaluation-of-lipid-profile-changes-in-pediatric-patients-with-acute-mononucleosis
#4
Shirin Sayyahfar, Amin Lavasani, Alireza Nateghian, Abdollah Karimi
BACKGROUND: Acute Epstein-Barr virus (EBV) infection could lead to atherogenic lipid profile changes in adults; while there is no evidence about the children with Infectious mononucleosis (IM). The aim of this study was to evaluate the lipid profile of the children in acute phase of mononucleosis and two months after the recovery. MATERIALS AND METHODS: From 2010 through 2012, 36 children with IM aged 1-10 years were enrolled in a prospective cross-sectional study...
March 13, 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28325354/solitary-plasmacytoma-associated-with-epstein-barr-virus-a-clinicopathologic-cytogenetic-study-and-literature-review
#5
Jiaqi Yan, Jianchao Wang, Wenyan Zhang, Min Chen, Jie Chen, Weiping Liu
Solitary plasmacytoma (SP) is an uncommon, indolent tumor of plasma cell neoplasms that presents as a mass lesion in extramedullary sites. Evidence of Epstein-Barr virus (EBV) infection is frequently associated with various lymphatic and hematopoietic malignancies but is relatively rare in SP. Moreover, it is essential to distinguish EBV-positive plasmacytoma from plasmablastic lymphoma. In this study, we found 4 EBV-encoded RNA (EBER)-positive patients among 46 consecutive immunocompetent patients of SP and compared the clinicopathologic features of these patients with those of the EBER-negative cohort...
April 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28323751/long-term-nitrite-inhalant-exposure-and-cancer-risk-in-men-who-have-sex-with-men-a-prospective-cohort-study
#6
Anupriya Dutta, Hajime Uno, Alex Holman, David R Lorenz, Steven M Wolinsky, Dana Gabuzda
OBJECTIVES: Nitrite inhalants (poppers) are commonly used recreational drugs among men who have sex with men (MSM) and were previously associated with elevated rates of high-risk sexual behavior, HIV and HHV-8 seroconversion, and transient immunosuppressive effects in experimental models. Whether long-term popper use is associated with cancer risk among MSM in the HAART era is unclear. DESIGN: Prospective cohort study of cancer risk in 3223 HIV-infected and -uninfected MSM in the Multicenter AIDS Cohort Study from 1996-2010...
March 18, 2017: AIDS
https://www.readbyqxmd.com/read/28320319/cytomegalovirus-epstein-barr-virus-and-varicella-zoster-virus-infection-in-the-first-two-years-of-life-a-cohort-study-in-bradford-uk
#7
Lucy Pembrey, Dagmar Waiblinger, Paul Griffiths, Mauli Patel, Rafaq Azad, John Wright
BACKGROUND: Cytomegalovirus (CMV), Epstein Barr virus (EBV) and varicella-zoster virus (VZV) are common herpesviruses frequently acquired in childhood, which establish persistent, latent infection and are likely to impact the developing immune system. Little is known about the epidemiology of CMV and EBV infections in contemporary UK paediatric populations, particularly whether age at infection differs by ethnic group. METHODS: Children enrolled in the Born in Bradford Allergy and Infection Study had a blood sample taken and a questionnaire completed at 12 and 24 months of age...
March 21, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28316767/type-ii-enteropathy-associated-t-cell-lymphoma-a-rare-report-from-iran
#8
Neda Nozari
Type II enteropathy-associated T-cell lymphoma (EATL) is a rare disease that is reported from Asia, especially from Taiwan. In this paper, we present a patient from Iran (Arab) with Type II EATL whose disease was not associated with celiac disease or Epstein-Barr virus (EBV) infection. The patient died due to intestinal perforation during the first chemotherapy. Type II EATL is a gastrointestinal lymphoma with poor prognosis and a high affinity for intestinal perforation. Early detection of EATL II is essential for chemotherapy prior to the onset of malnutrition symptoms...
January 2017: Middle East Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28316109/airway-inflammation-and-symptoms-in-children-following-liver-and-heart-transplantation
#9
Andrew J Redmann, John C Bucuvalas, Robert E Wood, Clifford Chin, Catherine K Hart
OBJECTIVES: Describe the upper airway endoscopic findings of children with upper airway symptoms after liver transplantation (LT) or heart transplantation (HT). METHODS: Review of children undergoing airway endoscopy after LT or HT from 2011 to 2015 at a tertiary care pediatric hospital. Airway findings, biopsy results, immunosuppression and Ebstein Barr virus (EBV) levels were recorded. RESULTS: Twenty-three of 158 LT (111) and HT (47) recipients underwent endoscopy...
March 18, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28299664/roles-of-runx-in-b-cell-immortalisation
#10
Michelle J West, Paul J Farrell
RUNX1 and RUNX3 are the main RUNX genes expressed in B lymphocytes. Both are expressed throughout B-cell development and play key roles at certain key developmental transitions. The tumour-associated Epstein-Barr virus (EBV) has potent B-cell transforming ability and manipulates RUNX3 and RUNX1 transcription through novel mechanisms to control B cell growth. In contrast to resting mature B cells where RUNX1 expression is high, in EBV-infected cells RUNX1 levels are low and RUNX3 levels are high. Downregulation of RUNX1 in these cells results from cross-regulation by RUNX3 and serves to relieve RUNX1-mediated growth repression...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28298901/unveiling-another-missing-piece-in-ebv-driven-lymphomagenesis-ebv-encoded-micrornas-expression-in-eber-negative-burkitt-lymphoma-cases
#11
Lucia Mundo, Maria R Ambrosio, Matteo Picciolini, Giuseppe Lo Bello, Sara Gazaneo, Leonardo Del Porro, Stefano Lazzi, Mohsen Navari, Noel Onyango, Massimo Granai, Cristiana Bellan, Giulia De Falco, Davide Gibellini, Pier P Piccaluga, Lorenzo Leoncini
Epstein-Barr virus (EBV) is a gammaherpesvirus linked to a number of lymphoid and epithelial malignancies, including Burkitt lymphoma (BL) in which its frequency ranges from 30% in sporadic cases to 100% in the endemic ones. The possible contribution of EBV to BL pathogenesis is largely unknown. It has been suggested that EBV may be associated with all of the cases, including those diagnosed as EBV negative by a mechanism of hit-and-run. Early during oncogenesis, viral genes are essential for initiating disease...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28293795/a-workflow-for-in-silico-design-of-hil-10-and-ebvil-10-inhibitors-using-well-known-miniprotein-scaffolds
#12
Salvador Dueñas, Sergio A Aguila, Genaro Pimienta
The over-expression of immune-suppressors such as IL-10 is a crucial landmark in both tumor progression, and latent viral and parasite infection. IL-10 is a multifunctional protein. Besides its immune-cell suppressive function, it also promotes B-cell tumorigenesis of lymphomas and melanoma. Human pathogens like unicellular parasites and viruses that remain latent inside B cells promote the over-expression of hIL-10 upon infection, which inhibits cell-mediated immune surveillance, and at the same time mediates B cell proliferation...
April 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28293550/dock-8-deficiency-ebv-lymphomatoid-granulomatosis-and-intrafamilial-variation-in-presentation
#13
Victoria R Dimitriades, Vincent Devlin, Stefania Pittaluga, Helen C Su, Steven M Holland, Wyndham Wilson, Kieron Dunleavy, Nirali N Shah, Alexandra F Freeman
Dedicator of cytokinesis 8 (DOCK8) deficiency is an autosomal recessive, combined immunodeficiency within the spectrum of hyper-IgE syndromes. Epstein-Barr virus-positive lymphomatoid granulomatosis (LYG) (EBV + LYG) is a rare diagnosis and a previously unreported presentation of DOCK8 deficiency. A 10-year-old girl was initially evaluated for mild eczema and recurrent sinopulmonary infections. She had normal immunoglobulins with elevated IgE, poor polysaccharide response with low switched memory B cells, low CD4 count, and normal mitogen and antigen responses...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28285979/the-added-value-of-hepatitis-e-diagnostics-in-determining-causes-of-hepatitis-in-routine-diagnostic-settings-in-the-netherlands
#14
Meintje Doting, Jan Weel, H Niesters, A Riezebos-Brilman, Afke Brandenburg
OBJECTIVES: Hepatitis E virus (HEV) genotype 3 is endemic in Europe and an underdiagnosed and emerging (public) health issue. In recent years commercial enzyme immunoassays (EIAs) that detect antibodies to HEV more adequately, became available. We investigated the added value of this HEV serology in the diagnostic work flow to detect viral causes of recent hepatitis. METHODS: During a two year period (May 2013 - May 2015), HEV serology was added to the hepatitis work flow, consisting of serological detection of hepatitis A-B-C virus (HAV, HBV, HCV), Epstein-Barr Virus (EBV) and Cytomegalovirus (CMV)...
March 7, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28280938/viral-load-of-ebv-dnaemia-is-a-predictor-of-ebv-related-post-transplant-lymphoproliferative-disorders-in-pediatric-renal-transplant-recipients
#15
Elisa Colombini, Isabella Guzzo, Federica Morolli, Germana Longo, Cristina Russo, Alessandra Lombardi, Pietro Merli, Luisa Barzon, Luisa Murer, Simone Piga, Marta Luisa Ciofi Degli Atti, Franco Locatelli, Luca Dello Strologo
BACKGROUND: Post-transplant lymphoproliferative disorder (PTLD) is a severe complication of solid organ transplantation that can be classified into two major subtypes, namely, early lesions and non-early lesions, based on histopathological findings. In the vast majority of cases, proliferating cells are B lymphocytes and, most frequently, proliferation is induced by Epstein-Barr virus (EBV) infection. METHODS: The aim of our study was to evaluate the natural history of EBV infection and its possible evolution toward PTLD in a pediatric cohort of patients who received a renal transplant between January 2000 and December 2013...
March 9, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28280640/hhv8-ebv-coinfection-lymphoproliferative-disorder-rare-entity-with-a-favorable-outcome
#16
Dhouha Bacha, Beya Chelly, Houda Kilani, Lamia Charfi, Amel Douggaz, Samia Chatti, Emna Chelbi
HHV8/EBV-associated germinotropic lymphoproliferative disorder (GLD) is a challenging diagnosis given its rarity, the particular clinical presentation, and the lack of expression of markers usually used in establishing hematopoietic lineage. We report a new case of HHV8/EBV GLD in an immunocompetent 78-year-old woman. The diagnosis was made in an incidentally discovered lymphadenopathy. Histological examination showed a nodular lymphoid proliferation centered by aggregates of atypical plasmablastic cells admixed with small lymphoid cells...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28276306/designing-an-effective-vaccine-to-prevent-epstein-barr-virus-associated-diseases-challenges-and-opportunities
#17
Vijayendra Dasari, Kunal H Bhatt, Corey Smith, Rajiv Khanna
Epstein-Barr virus (EBV) is a ubiquitous herpesvirus associated with a number of clinical manifestations. Primary EBV infection in young adolescents often manifests as acute infectious mononucleosis and latent infection is associated with multiple lymphoid and epithelial cancers and autoimmune disorders, particularly multiple sclerosis. Areas covered: Over the last decade, our understanding of pathogenesis and immune regulation of EBV-associated diseases has provided an important platform for the development of novel vaccine formulations...
April 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28276007/investigation-on-the-association-between-thyroid-tumorigeneses-and-herpesviruses
#18
J F M Almeida, A H Campos, M A Marcello, N E Bufalo, C L Rossi, L H P Amaral, A B Marques, L L Cunha, C A Alvarenga, P C Tincani, A J Tincani, L S Ward
Herpesviruses have been associated with various human malignancies and with thyroid autoimmunity. Aiming to investigate the presence of these viruses in thyroid nodules, we analyzed serum and thyroid tissue from 183 patients (83 benign and 100 malignant thyroid nodules). We also obtained 104 normal thyroid tissues extracted from the contralateral lobe of these patients. We used ELISA to screen the serology of all patients and a real-time quantitative PCR to analyze thyroid tissue viral load in antibody-positive patients...
March 8, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28271981/understanding-epstein-barr-virus-life-cycle-with-proteomics-a-temporal-analysis-of-ubiquitination-during-virus-reactivation
#19
Dong-Wen Lv, Jun Zhong, Kun Zhang, Akhilesh Pandey, Renfeng Li
Epstein-Barr virus (EBV) is a human γ-herpesvirus associated with cancer, including Burkitt lymphoma, nasopharyngeal, and gastric carcinoma. EBV reactivation in latently infected B cells is essential for persistent infection whereby B cell receptor (BCR) activation is a physiologically relevant stimulus. Yet, a global view of BCR activation-regulated protein ubiquitination is lacking when EBV is actively replicating. We report here, for the first time, the long-term effects of IgG cross-linking-regulated protein ubiquitination and offer a basis for dissecting the cellular environment during the course of EBV lytic replication...
January 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28271078/time-correlation-between-mononucleosis-and-initial-symptoms-of-ms
#20
John Endriz, Peggy P Ho, Lawrence Steinman
OBJECTIVE: To determine the average age of MS onset vs the age at which Epstein-Barr infection has previously occurred and stratify this analysis by sex and the blood level of Epstein-Barr nuclear antigen 1 (EBNA1) antibody. METHODS: Using infectious mononucleosis (IM) as a temporal marker in data from the Swedish epidemiologic investigation of MS, 259 adult IM/MS cases were identified and then augmented to account for "missing" childhood data so that the average age of MS onset could be determined for cases binned by age of IM (as stratified by sex and EBNA1 titer level)...
May 2017: Neurology® Neuroimmunology & Neuroinflammation
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