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EB virus

Jessica McKenzie, Francesc Lopez-Giraldez, Henri-Jacques Delecluse, Ann Walsh, Ayman El-Guindy
Subversion of host immune surveillance is a crucial step in viral pathogenesis. Epstein-Barr virus (EBV) encodes two immune evasion gene products, BCRF1 (viral IL-10) and BPLF1 (deubiquitinase/deneddylase); both proteins suppress antiviral immune responses during primary infection. The BCRF1 and BPLF1 genes are expressed during the late phase of the lytic cycle, an essential but poorly understood phase of viral gene expression. Several late gene regulators recently identified in beta and gamma herpesviruses form a viral pre-initiation complex for transcription...
November 2016: PLoS Pathogens
Shojiro Haji, Motoaki Shiratsuchi, Takamitsu Matsushima, Akiko Takamatsu, Mariko Tsuda, Yasuhiro Tsukamoto, Emi Tanaka, Hirofumi Ohno, Eriko Fujioka, Yuriko Ishikawa, Ken-Ichi Imadome, Yoshihiro Ogawa
Aggressive NK-cell leukemia (ANKL) is characterized by systemic infiltration of Epstein-Barr virus (EBV)-associated natural killer cells and poor prognosis. We report a case of ANKL in which EBV-specific cytotoxic T lymphocytes (CTLs) were induced. A 41-year-old male suffered from fever, pancytopenia, and hepatosplenomegaly. The number of abnormal large granular lymphocytes in the bone marrow was increased and the cells were positive for CD56 and EBV-encoded small nuclear RNAs. The patient was diagnosed with ANKL and achieved a complete response following intensive chemotherapy...
November 9, 2016: International Journal of Hematology
Z P Ma, Babayi Ainiwaer, Z Y Liu, X L Shi, W L Cui, W Zhang, X X Li
Objective: To investigate clinicopathologic characteristics, immunophenotype and EB virus-related molecular genetic alterations in primary central nervous system diffuse large B cell lymphoma (DLBCL) along with correlation with clinical prognosis. Methods: A total of 30 cases of primary central nervous system DLBCL were retrospectively studied by retrieving clinical data, histological evaluation and immunophenotyping by EnVision two steps methods. The expression of EBER mRNA was detected by in situ hybridization and bcl-2, bcl-6 and C-MYC gene abnormalities were analyzed by interphase fluorescence in situ hybridization...
November 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Encheng Yang, Xiao Li, Ningyi Jin
AIM: This study was aimed to evaluate the therapeutic efficiency of a non-virus based specific chimeric multi-domain DNA transferred with apoptin in human hepatocellular carcinoma (HCC) HepG-2 cells in vitro and in mice H22 cells in vivo. METHODS: We firstly constructed the multi-domain recombinant chimeric proteins based on recombinant proteins [G (yeast GAL4), NG (none GAL4), TG (GAL4 + Tat protein) and TNG (Tat protein)] and pUAS-Apoptin plasmid, and transfected them into human HepG-2 cells...
2016: Cancer Cell International
S Huang, L Jin, J Yang, Y L Duan, M Zhang, C J Zhou, Y H Zhang
Objective: To analyze the clinical features and outcomes of Burkitt lymphoma with testicular involvement and study the efficiency of high dose methotrexate (HD-MTX: 5-8g/m(2)) in those patients without radiation therapy. Method: Retrospective analysis was conducted in 16 Burkitt's lymphoma cases with testicular lymphoma involvement between Jan 2009 and Dec 2014. We followed the BCH-NHL-2009 protocol, modified from FAB LMB 89 combined with rituximab. All patients were enrolled in high-risk group (treated by Group C protocol)...
September 14, 2016: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
Petr Vodicka, Kathryn Chase, Maria Iuliano, Adelaide Tousley, Dana T Valentine, Ellen Sapp, Kimberly B Kegel-Gleason, Miguel Sena-Esteves, Neil Aronin, Marian DiFiglia
BACKGROUND: Mutant huntingtin (mHTT) is encoded by the Huntington's disease (HD) gene and its accumulation in the brain contributes to HD pathogenesis. Reducing mHTT levels through activation of the autophagosome-lysosomal pathway may have therapeutic benefit. Transcription factor EB (TFEB) regulates lysosome biogenesis and autophagy. OBJECTIVE: To examine if increasing TFEB protein levels in HD mouse striatum induces autophagy and influences mHTT levels. METHODS: We introduced cDNA encoding TFEB with an HA tag (TFEB-HA) under the control of neuron specific synapsin 1 promoter into the striatum of 3 month old HDQ175/Q7 mice using adeno-associated virus AAV2/9...
October 1, 2016: Journal of Huntington's Disease
Songmi Wang, Qun Hu, Shuangyou Liu
No abstract text is available yet for this article.
January 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
Zhong-Ling Wei, Lai-Quan Huang, Yan Dai, Gui-Ping Su, Yi-Zhi Jiang, Dong-Ping Huang
OBJECTIVE: To investigate the clinical characteristics of primary cutaneous γΔ T cell lymphoma and its treatment methods. METHODS: The clinical data and treatment process of one woman case of primary cutaneous γ Δ T cell lymphoma diagnosed in our department were analysed. The multiple subcutaneous nodules were the main clinical features, the diagnosis of primary cutaneous γΔ T cell lymphoma was comfired by skin biopsy pathology. The immunophenotypes of lymphocytes showed CD20-, CD3+, CD4-, CD8-, CD56+, TIA-1+, Ki-67+ (about 60%); plasma cells kappa+(part)/lambda predominate+(part); histocytes CD4+, CD68/PGM1+; βF1-, epstein-barr (EB) virus showed negative EBER in situ hybridization...
June 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
Li Huang, Hong-Xia Yao
OBJECTIVE: To investigate the relationship between the etiology, laboratory findings and prognosis of secondary HPS, so as to enhance the understanding of the secondary HPS and the related factors affecting prognosis, reduce the misdiagnosis and to understand the factors that affect the prognosis. METHODS: The etiology, laboratory findings and prognosis of 61 patients with secondary HPS were analyzed retrospectively. RESULTS: Univariate analysis showed that TG, FIB, SF, ANC, ALB, TBIL, ALT, LDH were significantly different between the 2 groups of the patients with secondary HPS...
April 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
Li Wang, Kourong Miao, Lei Fan, Ji Xu, Hanxin Wu, Jianyong Li, Wei Xu
OBJECTIVE: To investigate the effectiveness and safety of reduced intensity conditioning allogeneic hematopoietic stem cell transplantation (RIC allo-HSCT) in ultra high risk chronic lymphocytic leukemia (CLL) patients with the deletion of p53 to deepen the understanding of allo-HSCT in the treatment of CLL. METHODS: In this retrospective study, a total of 4 ultra high risk CLL patients with the deletion of p53 in our center between July 2012 and Jan 2014 were enrolled...
April 2016: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
L Xiao, X M Guan, Y Meng, X D Zhao, Y Xian, Y F An, J Yu
OBJECTIVE: To analyze and summarize the clinical characteristics, laboratory tests and treatment of X-linked lymphoproliferative syndrome type 1 (XLP-1). METHOD: A retrospective study was done in 2012 on an XLP-1 patient to collect the data on clinical manifestation, laboratory examination, gene and protein expression, complications and prognosis. Literatures were reviewed in Pubmed with the key word"X-linked lymphoproliferative syndrome". RESULT: The patient with persistent high fever, jaundice, abdominal distension, hepatosplenomegaly and lymphadenectasis, rash and suspicious positive family history; the patient eventually died of hemophagocytic lymphohistiocytosis (HLH), with intestinal perforation, intestinal infection and bleeding after being infected with EB virus...
April 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
Yang Zhang, Xueqin Peng, Yunlian Tang, Xiaoning Gan, Chengkun Wang, Lu Xie, Xiaoli Xie, Runliang Gan, Yimou Wu
Epstein-Barr virus (EBV) is a human oncogenic herpesvirus associated with lymphoma and nasopharyngeal carcinoma. Because the susceptible hosts of EB virus are limited to human and cotton-top tamarins (Saguinus oedipus), there have been no appropriate animal models until the lymphoma model induced by EBV in human peripheral blood lymphocyte (hu-PBL)/SCID chimeric mice was reported. However, it is still controversial whether the EBV-associated lymphoma induced in hu-PBL/SCID mice is a monoclonal tumor. In this study, we transplanted normal human peripheral blood lymphocytes (hu-PBL) from six donors infected with EBV into SCID mice to construct hu-PBL/SCID chimeric mice...
October 2016: Journal of Medical Virology
Jun Dong, Li Tian, Sheng Li, Yunxian Mo, Lizhi Liu, Rui Zhong
OBJECTIVE: This study aimed to map differences in extension patterns between adenoid cystic carcinoma (ACC) of the nasopharynxandnasopharyngeal carcinomaon magnetic resonance imaging (MRI) and provide more information for treatments. METHODS: MRI examinations and clinical records were reviewed in 18 patients with ACC of the nasopharynx and 182 patients with nasopharyngeal carcinoma (NPC). All patients had biopsy to confirm diagnosis. Differences between NPC and ACC in terms of extension patterns were identified by the retrospective analysis of images from patients undergoing MRI...
2015: International Journal of Clinical and Experimental Pathology
Kazuhiro Ikegame, Kohsuke Imai, Motoi Yamashita, Akihiro Hoshino, Hirokazu Kanegane, Tomohiro Morio, Katsuji Kaida, Takayuki Inoue, Toshihiro Soma, Hiroya Tamaki, Masaya Okada, Hiroyasu Ogawa
BACKGROUND: We herein report the first case of X-linked agammaglobulinemia (XLA) that underwent allogeneic stem cell transplantation using reduced intensity conditioning (RIC). We chronologically observed the reconstitution of humoral immunity in this case. CASE PRESENTATION: The patient was a 28-year-old Japanese male with XLA who previously had life-threatening infectious episodes and was referred for the possible indication of allogeneic stem cell transplantation...
February 13, 2016: Journal of Hematology & Oncology
Tetsuya Ishikawa, Hiroaki Shimizu, Toshifumi Takei, Hiroko Koya, Hirono Iriuchishima, Takumi Hosiho, Junko Hirato, Masaru Kojima, Hiroshi Handa, Yoshihisa Nojima, Hirokazu Murakami
We report a rare case of T cell type monomorphic post-transplant lymphoproliferative disorders (PTLD) after autologous stem cell transplantation. A 53-year-old man with multiple myeloma received autologous stem cell transplantation and achieved a very good partial response. Nine months later, he developed a high fever and consciousness disturbance, and had multiple swollen lymph nodes and a high titer of Epstein-Barr (EB) virus DNA in his peripheral blood. Neither CT nor MRI of the brain revealed any abnormalities...
January 2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
Shuzhen Liu, Zhenzhen Zhao, Lu Han, Song Liu, Bing Luo
BACKGROUND: Epstein-Barr virus (EBV) is associated with a subset of gastric carcinoma which was defined as EBV associated gastric carcinoma (EBVaGC). The proportion of EBVaGC in gastric remnant carcinoma (GRC) which occurs in the intact stomach five or more years after gastric surgery for benign disease is significantly higher than that in conventional gastric carcinoma (CGC). The infection of EBV in recurrent gastric carcinoma (RGC) with local anastomotic recurrence is poorly understood...
2016: PloS One
Ayano Oonishi, Kazuya Kariyama
No abstract text is available yet for this article.
December 2015: Nihon Rinsho. Japanese Journal of Clinical Medicine
Yasuaki Kotetsu, Satoshi Ikegame, Keiko Takebe-Akazawa, Takaomi Koga, Kan Okabayashi, Shohei Takata
A 70-year-old male visited our hospital due to failure of pneumonia treatment. Chest CT showed consolidation in the right middle field and slight mediastinal lymphadenopathy in the subcarinal region. Lung consolidation improved with antibiotics; subcarinal lymphadenopathy progressed after four months. Malignant lymphoma was suspected given elevated sIL2-R levels (1862 U/ml). Patchy ground glass opacities appeared in the bilateral lung field just before surgical biopsy. He was diagnosed with IgG4-related lung disease after inspection of a pathological specimen obtained from the right upper lung and right hilar lymph node...
January 25, 2016: Clinical Respiratory Journal
Jarosław Lewandowski, Tomasz J Kolanowski, Maciej Kurpisz
The derivation of pluripotent stem cells from human embryos and the generation of induced pluripotent stem cells (iPSCs) from somatic cells opened a new chapter in studies on the regeneration of the post-infarction heart and regenerative medicine as a whole. Thus, protocols for obtaining iPSCs were enthusiastically adopted and widely used for further experiments on cardiac differentiation. iPSC-mediated cardiomyocytes (iPSC-CMs) under in vitro culture conditions are generated by simulating natural cardiomyogenesis and involve the wingless-type mouse mammary tumour virus integration site family (WNT), transforming growth factor beta (TGF-β) and fibroblast growth factor (FGF) signalling pathways...
January 17, 2016: Journal of Tissue Engineering and Regenerative Medicine
Yun Cui, Yucai Zhang, Fei Wang, Yan Zhu, Rongxin Chen, Liang Xu
OBJECTIVE: Severe Epstein-Barr (EB) virus infection is potentially a devastating process that often leads to death encountered in pediatrics recently. Inappropriate control of EB virus replication may cause severe infection resulting in multiple organ dysfunction. However, little information is available on pulmonary complications associated with EB virus infection. The aim of the present study was to investigate severe EB virus (EBV) infection complicated with lung injury in pediatric intensive care unit (PICU), including clinical characteristics, laboratory or imaging feature and outcomes...
August 2015: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
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