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Epstein-Barr virus and gastrointestinal lymphomas in Korea
Yonsei Medical Journal ; : 268-276, 1998.
Article in English | WPRIM | ID: wpr-66553
ABSTRACT
To analyze the association of Epstein-Barr virus (EBV) with gastrointestinal non-Hodgkin's lymphomas arising in immunocompetent patients, 56 consecutive cases of gastrointestinal lymphomas (B-cell 52-cases, T-cell 3 cases, T/NK-cell 1 case) occurring in the stomach (33 cases), intestine (22 cases) and esophagus (1 case) were investigated for the presence of EBV using polymerase chain reaction analysis as a screening method followed by EBER-1 RNA and DNA in situ hybridization (ISH) and immunohistochemistry for the expression of latent membrane protein 1 (LMP-1). Forty-seven cases demonstrated extractable DNA and EBV DNA was detected only in 4 cases. Among the, RNA (EBER-1) and DNA ISH analysis confirmed the presence of the EBV genome in tumor cells in 3 cases (T/NK-cell lymphoma of ileum, gastric high-grade B-cell lymphoma of mucosa-associated lymphoid tissue, gastric diffuse large B-cell lymphoma). Only the T/NK cell lymphoma showed diffuse positivity of tumor cells while 2 gastric B-cell lymphomas demonstrated a scattered positive reaction and no cases expressed LMP-1. Nine cases without extractable DNA by the PCR method showed no nuclear signal by EBER-1 ISH. These findings suggest that most sporadic primary gastrointestinal lymphomas in Korea are not associated with EBV.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Polymerase Chain Reaction / Genome, Viral / In Situ Hybridization / Herpesvirus 4, Human / Gastrointestinal Neoplasms / Korea / Lymphoma Limits: Humans Country/Region as subject: Asia Language: English Journal: Yonsei Medical Journal Year: 1998 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Polymerase Chain Reaction / Genome, Viral / In Situ Hybridization / Herpesvirus 4, Human / Gastrointestinal Neoplasms / Korea / Lymphoma Limits: Humans Country/Region as subject: Asia Language: English Journal: Yonsei Medical Journal Year: 1998 Type: Article