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Chronic epstein barr

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https://www.readbyqxmd.com/read/28628024/-evaluation-of-dynamic-telomere-length-shortening-of-lymphocytes-in-immunocompromised-children-with-chronic-diseases-of-the-respiratory
#1
E Khalturina, I Nesterova
Nowadays it is common to observe the growth of viral-viral and viral-bacterial co-infections in children of different ages, due to dysfunction of lymphocytes (DL), which can be connected with the process of the accelerated shortening of the end structures of chromosomal telomeres, telomere length changes are described in lymphocytes of children with chronic mono-infections. The conducted study has shown the shortening of telomere lymphocytes in children with CDRT seropositive for mixed-herpes viral infections (herpes simplex virus, virus, Epstein-Barr virus and cytomegalovirus in various combinations) and for bacterial co-infections - Chlamydia trachomatis and (or) Mycoplasma pneumoniae...
May 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28624961/phenotypic-and-functional-characterization-of-t-cells-in-white-matter-lesions-of-multiple-sclerosis-patients
#2
Gijsbert P van Nierop, Marvin M van Luijn, Samira S Michels, Marie-Jose Melief, Malou Janssen, Anton W Langerak, Werner J D Ouwendijk, Rogier Q Hintzen, Georges M G M Verjans
T cells are considered pivotal in the pathology of multiple sclerosis (MS), but their function and antigen specificity are unknown. To unravel the role of T cells in MS pathology, we performed a comprehensive analysis on T cells recovered from paired blood, cerebrospinal fluid (CSF), normal-appearing white matter (NAWM) and white matter lesions (WML) from 27 MS patients with advanced disease shortly after death. The differentiation status of T cells in these compartments was determined by ex vivo flow cytometry and immunohistochemistry...
June 17, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28612032/genetics-and-molecular-biology-of-epstein-barr-virus-encoded-bart-microrna-a-paradigm-for-viral-modulation-of-host-immune-response-genes-and-genome-stability
#3
REVIEW
David H Dreyfus
Epstein-Barr virus, a ubiquitous human herpesvirus, is associated through epidemiologic evidence with common autoimmune syndromes and cancers. However, specific genetic mechanisms of pathogenesis have been difficult to identify. In this review, the author summarizes evidence that recently discovered noncoding RNAs termed microRNA encoded by Epstein-Barr virus BARF (BamHI A right frame) termed BART (BamHI A right transcripts) are modulators of human immune response genes and genome stability in infected and bystander cells...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28609772/lymphoproliferative-disorders-of-the-lung
#4
Raphaël Borie, Marie Wislez, Martine Antoine, Jacques Cadranel
This review aims to describe some of the most frequent lymphoproliferative disorders arising from the lung: pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma, lymphomatoid granulomatosis (LG), multicentric Castleman disease (MCD), primary effusion lymphoma (PEL), and nodular lymphoid hyperplasia (NLH). Primary pulmonary lymphoma is defined as a clonal lymphoproliferative disorder affecting one or both lungs, without extrapulmonary involvement 3 months after diagnosis, and includes pulmonary MALT lymphoma and LG...
June 14, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28604802/serological-profiling-of-the-ebv-immune-response-in-chronic-fatigue-syndrome-using-a-peptide-microarray
#5
Madlen Loebel, Maren Eckey, Franziska Sotzny, Elisabeth Hahn, Sandra Bauer, Patricia Grabowski, Johannes Zerweck, Pavlo Holenya, Leif G Hanitsch, Kirsten Wittke, Peter Borchmann, Jens-Ulrich Rüffer, Falk Hiepe, Klemens Ruprecht, Uta Behrends, Carola Meindl, Hans-Dieter Volk, Ulf Reimer, Carmen Scheibenbogen
BACKGROUND: Epstein-Barr-Virus (EBV) plays an important role as trigger or cofactor for various autoimmune diseases. In a subset of patients with Chronic Fatigue Syndrome (CFS) disease starts with infectious mononucleosis as late primary EBV-infection, whereby altered levels of EBV-specific antibodies can be observed in another subset of patients. METHODS: We performed a comprehensive mapping of the IgG response against EBV comparing 50 healthy controls with 92 CFS patients using a microarray platform...
2017: PloS One
https://www.readbyqxmd.com/read/28592786/epstein-barr-virus-associated-lymphoproliferative-disorders-review-and-update-on-2016-who-classification
#6
Hyun-Jung Kim, Young Hyeh Ko, Ji Eun Kim, Seung-Sook Lee, Hyekyung Lee, Gyeongsin Park, Jin Ho Paik, Hee Jeong Cha, Yoo-Duk Choi, Jae Ho Han, Jooryung Huh
Epstein-Barr virus (human herpesvirus-4) is very common virus that can be detected in more than 95% of the human population. Most people are asymptomatic and live their entire lives in a chronically infected state (IgG positive). However, in some populations, the Epstein-Barr virus (EBV) has been involved in the occurrence of a wide range of B-cell lymphoproliferative disorders (LPDs), including Burkitt lymphoma, classic Hodgkin's lymphoma, and immune-deficiency associated LPDs (post-transplant and human immunodeficiency virus-associated LPDs)...
June 5, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28590301/epstein-barr-virus-positive-mucocutaneous-ulcer-mimicking-rectal-carcinoma-at-18f-fdg-pet-ct
#7
Anna Margherita Maffione, Lucia Rampin, Rossella Paolini, Elisabetta Rodella, Laura Camilla Lisato, Maria Rosa Ballotta, Giovanni Pavanato, Giampaolo Montesi, Patrick M Colletti, Domenico Rubello
We report focally intense F-FDG PET/CT rectal activity (SUVmax = 25) with a horseshoe distribution in an 81-year-old man with B-cell chronic lymphocytic leukemia and suspected Richter transformation. While imaging findings were typical for rectal adenocarcinoma, histology revealed Epstein-Barr virus-positive mucocutaneous ulcer.
June 5, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28573910/haploidentical-hematopoietic-stem-cell-transplantation-for-adult-patients-with-epstein-barr-virus-associated-hemophagocytic-lymphohistiocytosis
#8
Zhihui Li, Yini Wang, Jingshi Wang, Jia Zhang, Zhao Wang
To assess the efficacy of haploidentical hematopoietic stem cell transplantation (HSCT) in adult patients with Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis (EBV-HLH), we retrospectively analyzed 30 cases that presented at our institution. At the time of HSCT, 20 patients (66.7%) had achieved a response after receiving HLH-94 or salvage therapies. All patients underwent myeloablative conditioning followed by peripheral blood HSCT from their related, haploidentical donors. Twenty-six patients (86...
June 2, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28561677/immunotherapy-for-esophageal-and-gastric-cancer
#9
Ronan J Kelly
PD-L1 upregulation occurs in approximately 40% of gastroesophageal cancers. However, unlike other solid tumors, there is minimal PD-L1 expressed on the cancer cells; rather, expression occurs predominantly on infiltrating myeloid cells. Preliminary clinical data involving single-agent PD-1/PD-L1 inhibitors in metastatic gastroesophageal cancer have reported response rates of 22%-27% for patients with PD-L1(+) tumors and 10%-17% for unselected patients. The phase III ONO-4538-12 (ATTRACTION 2) trial has demonstrated an improved overall survival for nivolumab compared with placebo for patients with heavily pretreated gastric cancer...
2017: American Society of Clinical Oncology Educational Book
https://www.readbyqxmd.com/read/28552984/methodological-approach-to-the-ex-vivo-expansion-and-detection-of-t-cruzi-specific-t-cells-from-chronic-chagas-disease-patients
#10
Gonzalo R Acevedo, Silvia A Longhi, Alcinette Bunying, Nazila Sabri, Augusto Atienza, María P Zago, Radleigh Santos, Valeria A Judkowski, Clemencia Pinilla, Karina A Gómez
The discovery of T cell epitopes is essential not only for gaining knowledge about host response to infectious disease but also for the development of immune-intervention strategies. In Chagas disease, given the size and complexity of the Trypanosoma cruzi proteome and its interaction with the host's immune system, the fine specificity of T cells has not been extensively studied yet, and this is particularly true for the CD4+ T cell compartment. The aim of the present work was to optimize a protocol for the generation of parasite-specific memory T cell lines, representative of their in vivo precursor populations and capable of responding to parasite antigens after long-term culture...
2017: PloS One
https://www.readbyqxmd.com/read/28542273/expression-profile-of-epstein-barr-virus-and-human-adenovirus-small-rnas-in-tonsillar-b-and-t-lymphocytes
#11
Farzaneh Assadian, Wael Kamel, Göran Laurell, Catharina Svensson, Tanel Punga, Göran Akusjärvi
We have used high-throughput small RNA sequencing to characterize viral small RNA expression in purified tonsillar B and T lymphocytes isolated from patients tested positive for Epstein-Barr virus (EBV) or human adenovirus (HAdV) infections, respectively. In the small set of patients analyzed, the expression profile of EBV and HAdV miRNAs could not distinguish between patients diagnosed with tonsillar hypertrophy or chronic/recurrent tonsillitis. The EBV miR-BART expression profile among the patients diagnosed with tonsillar diseases resembles most closely the pattern seen in EBV+ tumors (Latency II/I)...
2017: PloS One
https://www.readbyqxmd.com/read/28499936/umbilical-cord-blood-transplantation-without-antithymocyte-globulin-results-in-similar-survival-but-better-quality-of-life-compared-with-unrelated-peripheral-blood-stem-cell-transplantation-for-the-treatment-of-acute-leukemia-a-retrospective-study-in-china
#12
Juan Tong, Li Xuan, Yanling Sun, Dongping Huang, Huilan Liu, Changcheng Zheng, Xiaoyu Zhu, Baolin Tang, Kaidi Song, Xuhan Zhang, Lei Zhang, Wen Yao, Dongjun Lin, Qifa Liu, Zimin Sun
Although previous studies have demonstrated improved outcomes in umbilical cord blood transplantation (UCBT) by omitting antithymocyte globulin (ATG) in the conditioning regimen, this approach has not been comparatively studied in unrelated peripheral blood stem cell transplantation (UPBSCT). To compare the risks and benefits between UCBT without ATG and UPBSCT in patients with acute leukemia (AL), we conducted a multicenter retrospective study of 79 patients who underwent UCBT (myeloablative conditioning without ATG) and 96 patients who underwent UPBSCT (myeloablative conditioning with ATG)...
May 9, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28499895/epstein-barr-virus-and-rheumatoid-arthritis
#13
Nathalie Balandraud, Jean Roudier
Rheumatoid arthritis (RA) is one of the most common autoimmune diseases, with a 0.5% worldwide prevalence. The cause of RA remains unknown, however both genetic and environmental factors may contribute to its development. Among these is the Epstein-Barr virus (EBV). Here, we discuss several aspects of the close relationship between EBV and RA. Patients with RA have impaired control of EBV infection. Indeed, they have high titres of antibodies against EBV antigens. Their peripheral blood T lymphocytes are less efficient at controlling the outgrowth of EBV-infected B cells...
May 9, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28489771/chronic-active-epstein-barr-virus-infection-associated-with-hemophagocytic-syndrome-and-extra-nodal-natural-killer-t-cell-lymphoma-in-an-18-year-old-girl-a-case-report
#14
Yawei Xing, Junwen Yang, Guanghui Lian, Shuijiao Chen, Linlin Chen, Fujun Li
RATIONALE: Chronic active Epstein-Barr virus infection (CAEBV) associated with hemophagocytic syndrome (HPS) and extra-nodal natural killer (NK)/T-cell lymphoma (ENKL) is a rare life-threatening disorder. This disease is easily misdiagnosed because of its varied presentations. PATIENT CONCERNS: An 18-year-old girl was admitted to our hospital with a history of edema in the lower limbs and intermittent fever lasting for more than 1 month. At admission, she had severe liver injury of unknown etiology...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28484077/epstein-barr-virus-induced-vegf-and-gm-csf-drive-nasopharyngeal-carcinoma-metastasis-via-recruitment-and-activation-of-macrophages
#15
Di Huang, Shijian Song, Zi-Zhao Wu, Wei Wu, Xiuying Cui, Jia-Ning Chen, Mu-Sheng Zeng, Shicheng Su
Chronic inflammation induced by persistent microbial infection plays an essential role in tumor progression. Although it is well documented that Epstein-Barr virus (EBV) infection is closely associated with nasopharyngeal carcinoma (NPC), how EBV-induced inflammation promotes NPC progression remains largely unknown. Here we report that tumor infiltration of tumor associated macrophages (TAM) and expression of CCL18, the cytokine preferentially secreted by TAM, closely correlate with serum EBV infection titers and tumor progression in two cohorts of NPC patients...
May 8, 2017: Cancer Research
https://www.readbyqxmd.com/read/28478837/the-spread-of-ebv-to-ectopic-lymphoid-aggregates-may-be-the-final-common-pathway-in-the-pathogenesis-of-me-cfs
#16
Willy Eriksen
According to the hypothesis presented here, myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) develops over 3 steps: Step 1 is characterized by the aggregation of lymphoid cells in dorsal root ganglia or other nervous structures. The cause of this formation of ectopic lymphoid aggregates may be an acute infection, asymptomatic reactivations of a common neurotropic virus, exposure to a neurotoxin, or physical injury to peripheral nerves. In step 2, Epstein-Barr virus (EBV)-infected lymphocytes or monocytes bring EBV from the circulation to one or several of these lymphoid aggregates, whereupon cell-to-cell transmission of EBV and proliferation of latently EBV-infected lymphocytes lead to the presence of many EBV-infected cells in the lymphoid aggregates...
May 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28468603/fluorescence-in-situ-hybridization-is-superior-for-monitoring-epstein-barr-viral-load-in-infectious-mononucleosis-patients
#17
Pengfei Cao, Meili Zhang, Wei Wang, Yafei Dai, Buqing Sai, Jun Sun, Lujuan Wang, Fan Wang, Guiyuan Li, Juanjuan Xiang
BACKGROUND: Epstein Barr virus (EBV) plays a causal role in some diseases, including infectious mononucleosis, lymphoproliferative diseases and nasopharyngeal carcinoma. Detection of EBV infection has been shown to be a useful tool for diagnosing EBV-related diseases. In the present study, we compared the performance of molecular tests, including fluorescence in situ hybridization (FISH) and EBV real-time PCR, to those of serological assays for the detection of EBV infection. METHODS: Thirty-eight patients with infectious mononucleosis (IM) were enrolled, of whom 31 were diagnosed with a mild type, and seven were diagnosed with IM with haemophagocytic lymphohistiocytosis and chronic active EBV infection...
May 3, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28465156/plasma-viral-mirnas-indicate-a-high-prevalence-of-occult-viral-infections
#18
Enrique Fuentes-Mattei, Dana Elena Giza, Masayoshi Shimizu, Cristina Ivan, John T Manning, Stefan Tudor, Maria Ciccone, Osman Aykan Kargin, Xinna Zhang, Pilar Mur, Nayra Soares do Amaral, Meng Chen, Jeffrey J Tarrand, Florea Lupu, Alessandra Ferrajoli, Michael J Keating, Catalin Vasilescu, Sai-Ching Jim Yeung, George A Calin
Prevalence of Kaposi sarcoma-associated herpesvirus (KSHV/HHV-8) varies greatly in different populations. We hypothesized that the actual prevalence of KSHV/HHV8 infection in humans is underestimated by the currently available serological tests. We analyzed four independent patient cohorts with post-surgical or post-chemotherapy sepsis, chronic lymphocytic leukemia and post-surgical patients with abdominal surgical interventions. Levels of specific KSHV-encoded miRNAs were measured by reverse transcription-quantitative polymerase chain reaction (RT-qPCR), and KSHV/HHV-8 IgG were measured by immunoassay...
April 19, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28421114/status-of-epstein-barr-virus-coinfection-with-helicobacter-pylori-in-gastric-cancer
#19
REVIEW
Shyam Singh, Hem Chandra Jha
Epstein-Barr virus is a ubiquitous human herpesvirus whose primary infection causes mononucleosis, Burkett's lymphoma, nasopharyngeal carcinoma, autoimmune diseases, and gastric cancer (GC). The persistent infection causes malignancies in lymph and epithelial cells. Helicobacter pylori causes gastritis in human with chronic inflammation. This chronic inflammation is thought to be the cause of genomic instability. About 45%-word population have a probability of having both pathogens, namely, H. pylori and EBV...
2017: Journal of Oncology
https://www.readbyqxmd.com/read/28395107/ebv-positive-b-cell-proliferations-of-varied-malignant-potential-2015-sh-eahp-workshop-report-part-1
#20
Yasodha Natkunam, John R Goodlad, Amy Chadburn, Daphne de Jong, Dita Gratzinger, John K C Chan, Jonathan Said, Elaine S Jaffe
Objectives: The 2015 Workshop of the Society for Hematopathology/European Association for Haematopathology aimed to review B-cell proliferations of varied malignant potential associated with immunodeficiency. Methods: The Workshop Panel reviewed all cases of B-cell hyperplasias, polymorphic B-lymphoproliferative disorders, Epstein-Barr virus (EBV)-positive mucocutaneous ulcer, and large B-cell proliferations associated with chronic inflammation and rendered consensus diagnoses...
February 1, 2017: American Journal of Clinical Pathology
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