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Epstein Bar Virus

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https://www.readbyqxmd.com/read/27539226/case-report-epstein-barr-virus-negative-diffuse-large-b-cell-lymphoma-detected-in-a-peri-prosthetic-membrane
#1
Sandra Sunitsch, Magdalena Gilg, Karl Kashofer, Andreas Leithner, Bernadette Liegl-Atzwanger, Christine Beham-Schmid
BACKGROUND: Primary bone lymphomas (PBL) are extremely rare malignant neoplasms. The most commonly described subtype of PBL is diffuse large B-cell lymphoma (DLBCL). DLBCL within peri-prosthetic membrane of a joint is exceedingly rare. To the best of our knowledge this case is the second reported Epstein-Bar-Virus (EBV) negative DLBCL in a peri-prosthetic membrane in the literature. CASE PRESENTATION: We report an 80 year old female patient who developed a DLBCL with chronic inflammation in association to a metallic implant in the left knee...
2016: Diagnostic Pathology
https://www.readbyqxmd.com/read/27484103/an-integrated-approach-of-network-based-systems-biology-molecular-docking-and-molecular-dynamics-approach-to-unravel-the-role-of-existing-antiviral-molecules-against-aids-associated-cancer
#2
Ankur Omer, Poonam Singh
A serious challenge in cancer treatment is to reposition the activity of various already known drug candidates against cancer. There is a need to rewrite and systematically analyze the detailed mechanistic aspect of cellular networks to gain insight into the novel role played by various molecules. Most Human Immunodeficiency Virus infection-associated cancers are caused by oncogenic viruses like Human Papilloma Viruses and Epstein-Bar Virus. As the onset of AIDS-associated cancers marks the severity of AIDS, there might be possible interconnections between the targets and mechanism of both the diseases...
August 2, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27308267/comparison-of-serological-and-molecular-test-for-diagnosis-of-infectious-mononucleosis
#3
Hassan Salehi, Marziyeh Salehi, Rasoul Roghanian, Majid Bozari, Shirin Taleifard, Mohamad Mahdi Salehi, Maryam Salehi
BACKGROUND: Epstein-Bar virus (EBV) is the main etiology of infectious mononucleosis (IM) syndrome that is characterized by fever, sore throat, and lymph adenopathy. Since, this virus could be associated with a number of malignancies, some hematologic disorders, and chronic fatigue syndrome, identification of IM is very important. The aim of study was to evaluate the specificity, as well as sensitivity of the two different methods that is, serology versus molecular diagnosis that are currently used for diagnosis of IM...
2016: Advanced Biomedical Research
https://www.readbyqxmd.com/read/26993476/surgical-treatment-for-primary-pulmonary-lymphoepithelioma-like-carcinoma
#4
Zhichao Lin, Dongrong Situ, Xiangzhen Chang, Wenhua Liang, Meiling Zhao, Chengjie Cai, Yang Liu, Jianxing He
OBJECTIVES: Primary pulmonary lymphoepithelioma-like carcinoma (LELC) is a rare but unique subtype of non-small-cell lung cancer (NSCLC). Our study aimed to evaluate clinicopathological characteristics and the value of surgical treatment for LELC and explore the relevant prognostic factors in a relatively large cohort. METHODS: We retrospectively reviewed the medical records of 39 lung LELC patients who underwent pulmonary resection with curative intent between January 2009 and December 2013...
July 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/26659263/epigenetic-alterations-in-epstein-barr-virus-associated-diseases
#5
REVIEW
Hans Helmut Niller, Ferenc Banati, Daniel Salamon, Janos Minarovits
Latent Epstein-Bar virus genomes undergo epigenetic modifications which are dependent on the respective tissue type and cellular phenotype. These define distinct viral epigenotypes corresponding with latent viral gene expression profiles. Viral Latent Membrane Proteins 1 and 2A can induce cellular DNA methyltransferases, thereby influencing the methylation status of the viral and cellular genomes. Therefore, not only the viral genomes carry epigenetic modifications, but also the cellular genomes adopt major epigenetic alterations upon EBV infection...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/26428381/immune-evasion-by-epstein-barr-virus
#6
REVIEW
Maaike E Ressing, Michiel van Gent, Anna M Gram, Marjolein J G Hooykaas, Sytse J Piersma, Emmanuel J H J Wiertz
Epstein-Bar virus (EBV) is widespread within the human population with over 90% of adults being infected. In response to primary EBV infection, the host mounts an antiviral immune response comprising both innate and adaptive effector functions. Although the immune system can control EBV infection to a large extent, the virus is not cleared. Instead, EBV establishes a latent infection in B lymphocytes characterized by limited viral gene expression. For the production of new viral progeny, EBV reactivates from these latently infected cells...
2015: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/26309499/inhibition-of-mir-155-suppresses-cell-migration-in-nasopharyngeal-carcinoma-through-targeting-zdhhc2
#7
Yuan-Xue Jiang, Zi-Ming Du, Lin Jiao, Qiong Shao, Sha Fu, Jian-Yong Shao, Xiao-Feng Zhu, Ingemar Ernberg, Yu-Hong Li
Overexpression of miR-155 in nasopharygeal carcinoma (NPC) is partly driven by Epstein-Bar virus infection. However the role of miR-155 in NPC oncogenesis is unclear. This study showed that miR-155 inhibitor could inhibit the cell migration in NPC cell lines. ZDHHC2 was identified as a direct target of miR-155 and downregulation of ZDHHC2 prompted cell migration in NPC. Furthermore, reduced ZDHHC2 expression was associated significantly with metastasis and poor survival of NPC patients. Collectively, inhibition of miR-155 suppresses cell migration in NPC through targeting ZDHHC2...
2015: International Journal of Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/26199356/viral-exposures-and-ms-outcome-in-a-prospective-cohort-of-children-with-acquired-demyelination
#8
Naila Makhani, Brenda Banwell, Raymond Tellier, Carmen Yea, Suzanne McGovern, Julia O'Mahony, Jean M Ahorro, Douglas Arnold, A Dessa Sadovnick, Ruth A Marrie, Amit Bar-Or
Epstein-Barr virus (EBV) infection is associated with increased multiple sclerosis (MS) risk. Recently, cytomegalovirus (CMV) infection has been proposed as a protective factor against MS development. We determined EBV, herpes simplex virus, varicella-zoster virus and CMV seroprevalence in 247 prospectively followed children with acquired demyelinating syndromes (ADS). Remote EBV infection was more common in children with MS than those with monophasic ADS while CMV infection was more common in children with monophasic ADS...
March 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/26195434/the-biology-of-interleukin-27-reveals-unique-pro-and-anti-inflammatory-functions-in-immunity
#9
REVIEW
Samadhi Aparicio-Siegmund, Christoph Garbers
Interleukin (IL)-27 is a multifaceted heterodimeric cytokine with pronounced pro- and anti-inflammatory as well as immunoregulatory functions. It consists of the two subunits p28/IL-30 and Epstein Bar virus-induced protein 3 (EBI3). EBI3 functions as a soluble α-receptor, and IL-27 can therefore directly activate its target cells through a heterodimer of glycoprotein 130 (gp130) and WSX-1. Being a heterodimeric cytokine that signals through gp130, IL-27 is either grouped into the IL-6 or the IL-12 family of cytokines...
October 2015: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/25953434/cross-talk-between-epstein-barr-virus-and-microenvironment-in-the-pathogenesis-of-lymphomas
#10
REVIEW
Riccardo Dolcetti
Epstein-Bar virus (EBV) is known to directly drive the neoplastic transformation of lymphoid cells resulting in the development of a variety of lymphoproliferative disorders. Emerging evidence however indicates that this final outcome is also related to the ability of EBV to shape microenvironment making it more conducive to cell transformation. Indeed, EBV up-regulates the production of several soluble factors promoting the growth and/or the survival of lymphoid cells and orchestrates a variety of complex mechanisms favoring their escape from anti-tumor immune responses...
October 2015: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/25946469/clinical-utility-of-plasma-epstein-barr-virus-dna-and-ercc1-single-nucleotide-polymorphism-in-nasopharyngeal-carcinoma
#11
Edwin P Hui, Brigette B Y Ma, K C Allen Chan, Charles M L Chan, Cesar S C Wong, Ka Fai To, Anthony W H Chan, Stewart Y Tung, Wai-Tong Ng, Ashley C Cheng, Victor H F Lee, Stephen L Chan, Herbert H F Loong, Michael K M Kam, Sing-Fai Leung, Rosalie Ho, Frankie Mo, Roger K C Ngan, Anthony T C Chan
BACKGROUND: Single nucleotide polymorphism (SNP) of the excision repair cross-complementing group 1 (ERCC1) gene has been linked with sensitivity to platinum and radiation. The authors hypothesized that the ERCC1 genotype for the SNPs cytosine-to-thymine substitution at codon 118 (C118T) and cytosine-to-adenine substitution at codon 8092 (C8092A) is prognostic in patients with nasopharyngeal carcinoma (NPC) who receive either radiotherapy (RT) or cisplatin plus RT. METHODS: The authors tested their hypothesis using biomarker screening samples from the Hong Kong NPC Study Group 0502 trial, which was a prospective, multicenter clinical trial that used post-RT plasma Epstein-Bar virus (EBV) DNA (pEBV) levels to screen patients with high-risk NPC for adjuvant chemotherapy...
August 15, 2015: Cancer
https://www.readbyqxmd.com/read/25540880/prevalence-of-bk-polyomavirus-infection-and-association-with-renal-dysfunction-in-pediatric-heart-transplant-recipients
#12
COMPARATIVE STUDY
Allison Ducharme-Smith, Ben Z Katz, Amy E Bobrowski, Carl L Backer, Karen Rychlik, Elfriede Pahl
BACKGROUND: BK polyomavirus (BKV) infection and nephropathy complicate renal allografts; however, their effect in the native kidneys of pediatric heart transplant (HTx) recipients is unknown. We assessed the prevalence of BKV infection and its association with kidney dysfunction in survivors of pediatric HTx. METHODS: A single-center retrospective study compared pediatric (aged <18 years ) HTx recipients, with and without BKV (controls), who received an allograft from May 1989 to July 2013...
February 2015: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/25325148/genotypic-detection-of-epstein-barr-virus-from-clinically-suspected-viral-retinitis-patients-in-a-tertiary-eye-care-centre-india
#13
Madhuravasal Krishnan Janani, Jambulingam Malathi, Jyothirmay Biswas, Sudharshan Sridharan, Hajib Naraharirao Madhavan
PURPOSE: To evaluate the diagnostic value of PCR on aqueous humour for detection and genotyping of Epstein Bar Virus in patients with viral retinitis. METHODS: 70 AH samples were collected from 20 HIV positive patients with clinically suspected viral retinitis and 25 patients with serpignous choroiditis and 25 AH from patients undergoing cataract surgery. PCR was performed to screen HHV-1 to HHV-5, Mtb and Toxoplasma gondii. Genotype prevalence was confirmed by phylogenetic analysis targetig EBV...
2015: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/25314890/hepatitis-associated-aplastic-anemia-case-report-and-discussion
#14
Arushi Khurana, Constantin A Dasanu
Aplastic anemia (AA) is thought to represent an autoimmune disorder leading to generation of activated CD8+ T-cells that target the bone marrow precursors. Hepatitis associated aplastic anemia (HAAA) is a subtype of aplastic anemia that develops within several months ofan episode of acute hepatitis. Etiologic agents include hepatitis viruses (A-E and G), Epstein-Bar virus, cytomegalovirus, HIV, parvovirus B19, and echoviruses amongst others. However, most HAAA cases are labeled "idiopathic" as the inciting agent cannot be identified...
September 2014: Connecticut Medicine
https://www.readbyqxmd.com/read/25126743/epigenetic-inactivation-of-inositol-polyphosphate-4-phosphatase-b-inpp4b-a-regulator-of-pi3k-akt-signaling-pathway-in-ebv-associated-nasopharyngeal-carcinoma
#15
Jessie Wai-Fong Yuen, Grace Tin-Yun Chung, Samantha Wei-Man Lun, Chartia Ching-Mei Cheung, Ka-Fai To, Kwok-Wai Lo
Nasopharyngeal carcinoma (NPC) is a common viral-associated neoplasm in which multiple signaling cascades are interfered with by Epstein-Bar virus (EBV) latent proteins and various genetic alterations. Aside from the previously reported PIK3CA amplification, we examined the role of INPP4B, a negative regulator of the PI3K/AKT signaling pathway in the development of NPC. By RT-PCR and Western blotting, we revealed that the expression of INPP4B was down-regulated in all five established EBV-positive tumor lines...
2014: PloS One
https://www.readbyqxmd.com/read/24559562/nonspecific-genital-ulcers
#16
REVIEW
Virendra N Sehgal, Deepika Pandhi, Ananta Khurana
Recent intervention of nonspecific genital ulcers has added refreshing dimensions to genital ulcer disease. It was considered pertinent to dwell on diverse clinical presentation and diagnostic strategies. It seems to possess spectrum. It includes infective causes, Epstein Bar Virus, tuberculosis, Leishmaniasis, HIV/AIDS related ulcers and amoebiasis. Noninfective causes are immunobullous disorders, aphthosis, Behcet's disease (BD), inflammatory bowel disease, lichen planus and lichen sclerosis et atrophicus, drug reactions, premalignant and malignant conditions, pyoderma gangrenosum, and hidradenitis suppurativa...
March 2014: Clinics in Dermatology
https://www.readbyqxmd.com/read/24014504/epstein-barr-virus-in-oral-shedding-of-children-with-multiple-sclerosis
#17
Carmen Yea, Raymond Tellier, Patrick Chong, Garrett Westmacott, Ruth Ann Marrie, Amit Bar-Or, Brenda Banwell
OBJECTIVE: To investigate Epstein-Barr virus (EBV) oral shedding frequency and EBV genetic diversity in pediatric patients with multiple sclerosis (MS). METHODS: This was a prospective case-control study. We used PCR-based assays to detect viral DNA in the monthly mouth swabs of 22 pediatric patients with MS and 77 age- and sex-matched healthy controls. EBV-positive samples were further analyzed for sequence variation in the EBV BCRF1 (ebvIL-10) gene using direct DNA sequencing methods, and in the EBV LMP1 gene by mass spectrometry...
October 15, 2013: Neurology
https://www.readbyqxmd.com/read/24013661/high-prevalence-of-oncogenic-myd88-and-cd79b-mutations-in-diffuse-large-b-cell-lymphomas-presenting-at-immune-privileged-sites
#18
W Kraan, H M Horlings, M van Keimpema, E J M Schilder-Tol, M E C M Oud, C Scheepstra, P M Kluin, M J Kersten, M Spaargaren, S T Pals
Activating mutations in CD79 and MYD88 have recently been found in a subset of diffuse large B-cell lymphoma (DLBCL), identifying B-cell receptor and MYD88 signalling as potential therapeutic targets for personalized treatment. Here, we report the prevalence of CD79B and MYD88 mutations and their relation to established clinical, phenotypic and molecular parameters in a large panel of DLBCLs. We show that these mutations often coexist and demonstrate that their presence is almost mutually exclusive with translocations of BCL2, BCL6 and cMYC, or Epstein-Bar virus infection...
2013: Blood Cancer Journal
https://www.readbyqxmd.com/read/22973830/cytokine-expression-profiles-of-immune-imbalance-in-post-mononucleosis-chronic-fatigue
#19
Gordon Broderick, Ben Z Katz, Henrique Fernandes, Mary Ann Fletcher, Nancy Klimas, Frederick A Smith, Maurice R G O'Gorman, Suzanne D Vernon, Renee Taylor
BACKGROUND: As Chronic Fatigue Syndrome (CFS) has been known to follow Epstein-Bar virus (EBV) and other systemic infections; our objective was to describe differences in immune activation in post-infective CFS (PI-CFS) patients and recovered controls. We studied 301 adolescents prospectively over 24 months following the diagnosis of monospot-positive infectious mononucleosis (IM). We found an incidence of CFS at 6, 12 and 24 months of 13%, 7% and 4% respectively. METHODS: Using chemiluminescent imaging we measured the concentrations of IL-1a, 1b, 2, 4, 5, 6, 8, 10, 12 (p70), 13, 15, 17 and 23, IFN-γ, TNF-α and TNF-β in duplicate plasma samples available in bio-bank from 9 PI-CFS subjects and 12 recovered controls at 24 months post-infection...
2012: Journal of Translational Medicine
https://www.readbyqxmd.com/read/22455516/hepatitis-c-virus-specific-cellular-immune-responses-in-individuals-with-no-evidence-of-infection
#20
Yves Rivière, Thomas Montange, Geneviève Janvier, Caroline Marnata, Ludovic Durrieu, Marie-Laure Chaix, Maria Isaguliants, Odile Launay, Jean-Louis Bresson, Stanislas Pol
The detection of hepatitis C virus (HCV)-specific T cell responses in HCV-uninfected, presumably unexposed, subjects could be due to an underestimation of the frequency of spontaneously resolving infections, as most acute HCV infections are clinically silent. To address this hypothesis, HCV-specific cellular immune responses were characterized, in individuals negative for an HCV PCR assay and humoral response, with (n = 32) or without (n = 33) risk of exposure to HCV. Uninfected volunteers (n = 20) with a chronically HCV-infected partner were included as positive controls for potential exposure to HCV and HCV infection, respectively...
2012: Virology Journal
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