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Chronic Active Epstein-Barr Virus Disease Originates from Infected Hematopoietic Stem Cells

ABSTRACT: Chronic Active Epstein-Barr Virus Disease Originates from Infected Hematopoietic Stem Cells

PROVIDER: PRJNA970288 | ENA |

REPOSITORIES: ENA

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Chronic Active Epstein-Barr Virus Disease Originates from Infected Hematopoietic Stem Cells

Project description:Chronic active Epstein-Barr Virus (EBV) disease (CAEBV) is lethal syndrome due to persistent EBV infection. When diagnosed as CAEBV, EBV infection was observed in multiple hematopoietic lineages, but the etiology of CAEBV is still elusive. Bone marrow and peripheral cells derived from five CAEBV patients, one EBV-associated hemophagocytic lymphohistiocytosis (EBV-HLH) patient, and two healthy controls were analyzed. Multiple assays were applied to identify and characterize EBV-infected cells, including quantitative PCR (qPCR), PrimeFlow and single-cell RNA-sequencing (scRNA-seq). Based on scRNA-seq data, alterations in gene expression of particular cell types were analyzed between CAEBV patients and controls, and between infected and uninfected cells. One CAEBV patient was treated with allogeneic hematopoietic stem cell transplantation (HSCT), and the samples derived from this patient were analyzed again six month after HSCT. EBV infected the full spectrum of the hematopoietic system including both lymphoid and myeloid lineages, so as hematopoietic stem cells (HSCs) in the CAEBV patients. EBV-infected HSCs exhibited a higher differentiation rate towards downstream lineages, and the EBV infection had an impact on both the innate and adaptive immunity, resulting in inflammatory symptoms. EBV infected cells were thoroughly removed from the hematopoietic system after HSCT. Taken together, multiple lines of evidence presented in this study suggest that CAEBV disease originates from the infected hematopoietic stem cells.

2023-10-24 | GSE231946 | GEO

Tabelecleucel for Solid Organ or Allogeneic Hematopoietic Cell Transplant Participants With Epstein-Barr Virus-Associated Post-Transplant Lymphoproliferative Disease (EBV+ PTLD) After Failure of Rituximab or Rituximab and Chemotherapy

Project description:The purpose of this study is to determine the clinical benefit and characterize the safety profile of tabelecleucel for the treatment of Epstein-Barr virus-associated post-transplant lymphoproliferative disease (EBV+ PTLD) in the setting of (1) solid organ transplant (SOT) after failure of rituximab and rituximab plus chemotherapy or (2) allogeneic hematopoietic cell transplant (HCT) after failure of rituximab.

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AGS cells infected with Epstein Barr Virus

2012-05-08 | GSE37753 | GEO

Ganciclovir Plus Arginine Butyrate in Treating Patients With Cancer or Lymphoproliferative Disorders Associated With the Epstein Barr Virus

Project description:RATIONALE: The Epstein Barr virus can cause cancer and lymphoproliferative disorders. Ganciclovir is an antiviral drug that acts against the Epstein Barr virus. Arginine butyrate may make virus cells more sensitive to ganciclovir. Combining ganciclovir and arginine butyrate may kill more Epstein Barr virus cells and tumor cells. PURPOSE: Phase I trial to study the effectiveness of arginine butyrate plus ganciclovir in treating patients who have cancer or lymphoproliferative disorders that are associated with the Epstein Barr virus.

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Richter transfromation of chronic lymphocytic leukemia driven by Epstein-Barr virus reactivation during therapy-realted immunosuppression

Project description:Gene expression analysis in Epstein-Barr virus negative DLBCL samples obtained from patients with Richter syndrome, lymphocytes from CLL patients and epstein-Barr virus positive DLBCL cell lines derived after CLL tumors xenotransplantation

2020-08-29 | GSE103265 | GEO

AGS cells infected with Epstein Barr Virus

Project description:Gene expression profile of AGS gastric carcinoma cell line infected in vitro with Epstein-Barr Virus. Some samples also contain are stably transfected with a dominant negative LMP1 construct. 8 total samples. 4 biological replicates of EBV infected cells, 2 biological replicates with EBV infected cells with LMP1DN construct, and 2 biological replicates with EBV infected cells with control vector.

2012-05-07 | E-GEOD-37753 | biostudies-arrayexpress

The Epstein Barr virus circleRNAome

Project description:The Epstein Barr virus circleRNAome

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Analysis of microRNA expression during Epstein-Barr virus encoded LMP1 and LMP2A transfected in TW03 cells

Project description:Epstein-Barr virus has been reported to regulate cellular microRNA expression in B cells. In the present study, we investigated the differential microRNAs modulated by Epstein-Barr virus in Naspharyngeal Carcinoma, using CapitalBio corporation's mammalian miRNA arrays. Three cellular models were used in this study: the human naspharyngeal carcinoma cell line TW03 as a blank control; TW03 transfected with Epstein-Barr virus encoded LMP1; TW03 transfected with Epstein-Barr virus encoded LMP2A

2011-01-13 | E-GEOD-26596 | biostudies-arrayexpress

PLK1 phosphorylation of Epstein-Barr virus nuclear antigen 2

Project description:The Epstein-Barr virus nuclear antigen 2 (EBNA2) initiates and maintains the proliferation of infected B cells. In search of additional cellular strategies, that control EBNA2 function, we have performed a label-free mass spectrometry-based quantification of cellular proteins in EBNA2 immuno-precipitates and found polo-like kinase 1 (PLK1) to be bound to EBNA2. EBNA2/PLK1 complex formation is strongly enforced by EBNA2 S379 phosphorylation catalyzed by the mitotic CYCLIN B/CDK1 complex.

2021-08-22 | PXD022970 | Pride

EBV iPOND in cancer-causing Epstein-Barr virus infected cells

Project description:We describe how the cancer-causing Epstein-Barr virus (EBV), a prototypic herpesvirus, alters proteome at viral replication forks prominently identifies chromatin modifying and transcriptional repression proteins. Specifically, to transition from transcription, the viral DNA polymerase processivity factor EA-D is SUMOylated by the transcriptional corepressor KAP1-TRIM28. KAP1 function is triggered by phosphorylation via the PI3K-related kinase ATM and the helicase RECQ5 at the transcription machinery. SUMO-EA-D recruits the histone loader CAF1 and the methyltransferase SETDB1 to silence the parental genome, prioritizing replication. Thus, DNA repair, epigenetic, and transcription-replication interference pathways orchestrate the handover from transcription to replication, a fundamental feature of DNA viruses

2023-02-27 | MSV000091375 | MassIVE

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