PURPOSE Some EBV-directed therapies are predicted to be effective only when lytic viral replication occurs. We studied whether cyclophosphamide chemotherapy induces EBV to switch from latent to lytic phases of infection in a series of EBV-associated Burkitt lymphomas. EXPERIMENTAL DESIGN Children with first presentation of an expanding, solid maxillary or mandibular mass consistent with Burki...

Distribution and phenotype of Epstein-Barr virus (EBV)-harboring cells were determined in Hodgkin's disease (HD) biopsies by in situ hybridization with [35S]-labeled RNA probes specific for the small EBV-encoded nuclear RNAs, EBER1 and EBER2, in some instances preceded by immunohistology for CD20, CD30, CD45RO, and CD68 antigens, the T-cell receptor beta-chain, and latent membrane antigen (LMP)...

Peripheral T-cell lymphomas (PTCLs) are rare and have a dismal prognosis. The most frequent subtype is PTCL, unspecified. Epstein-Barr virus (EBV) has been detected in around 40% of cases, but its prognostic significance is not fully established. Lymph node samples from 110 patients with PTCL, unspecified included in LNH87 and LNH93 trials were available. EBV status was studied by EBV-encoded s...

A series of 520 cases of non-Hodgkin‘s lymphoma (NHL; 374 of B-cell, 130 of T-cell, 5 of non-Blnon-T-cell, and 11 of undetermined phenotype) was analyzed for the presence of Epstein-Barr virus (EBV) using RNA in situ hybridization (RISH). The aims of the study were to assess the frequency of EBV-encoded small nuclear RNAs 1 and 2 (EBER), abundant immediate early RNAs (BHLF), and latent membrane...

Reed-Sternberg cells (RS cells) of Hodgkin's disease (HD) are frequently infected with Epstein-Barr virus (EBV) and express EBV-encoded nonpolyadenylated RNA transcripts (EBER)-1. EBV latency has been classified into three distinct forms: Latency I, expressing only one of the latent proteins, EBV nuclear antigen (EBNA)-1, latency II, coexpressing EBNA-1 and LMPs, and latency III, expressing all...

Transfection of an Epstein-Barr virus (EBV)-encoded plasmid containing EBER caused a substantial decrease in the level of plasmid containing EBV in Akata and Mutu Burkitt's lymphoma (BL) lines, but failed to do so in other BL lines. The results suggest that EBER could replace the role of EBV, but other EBV products also play a role in the growth of BL.

Studies have revealed that Epstein-Barr virus (EBV) infection, genetic aberration, and environmental factors are of importance in the development of nasopharyngeal carcinoma (NPC), although the definite mechanism remains to be fully elucidated. The aim of our study is to investigate using tissue microarray analysis whether differential expression of EBV-encoded small RNA-1 (EBER-1) and several ...

BACKGROUND Plasma cell neoplasms (PCNs) presenting with masses are not common. Variable morphology, expression of CD56 and cyclin D1, and Epstein-Barr virus (EBV)-encoded small RNA (EBER) status have been described with a promising diagnostic role. There is no data of these findings in Thai patients. OBJECTIVE To study morphology, CD56 and cyclin D1 expression and EBER status in PCNs presenti...

PURPOSE p16 is an important inhibitor of cell cycle progression; absence of p16 can thus result in increased cellular proliferation. In nasopharyngeal carcinoma (NPC), absence of p16 has been reported in association with presence of the EBV and pRb. We therefore examined p16, pRb, and EBV-encoded RNA (EBER) expression in biopsy specimens from 84 patients with newly diagnosed NPC, who were treat...

The Epstein-Barr virus (EBV) is strongly associated with endemic Burkitt lymphoma (BL) and can also be found in a subset of other non-Hodgkin lymphomas (NHLs).1 At the present time, only very limited information is available regarding the prevalence of EBV in pediatric NHL in Western Europe and the United States. Concurrently, little data exists in regard to EBV gene expression patterns in pedi...