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M9630176.TXT
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1996-02-27
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Document 0176
DOCN M9630176
TI Lymphomas of the oral soft tissues are not preferentially associated
with latent or replicative Epstein-Barr virus.
DT 9603
AU Gulley ML; Sargeant KP; Grider DJ; Eagan PA; Davey DD; Damm DD; Robinson
RA; Vandersteen DP; McGuff HS; Banks PM; University of Texas Health
Science Center at San Antonio, USA.
SO Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1995 Oct;80(4):425-31.
Unique Identifier : AIDSLINE MED/96123984
AB OBJECTIVES. Epstein-Barr virus is periodically shed in the saliva of
persons infected by the virus. Epstein-Barr virus has been implicated in
the pathogenesis of certain subtypes of lymphoma, particularly
high-grade lymphomas. Because high-grade subtypes represent the majority
of lymphomas that arise in oral soft tissues, we hypothesized that
Epstein-Barr virus might be preferentially associated with oral
lymphomas. STUDY DESIGN. A series of 34 oral lymphomas were diagnosed
according to the revised European-American classification scheme. They
were examined for the presence of latent Epstein-Barr virus by EBER1 in
situ hybridization and for expression of the Epstein-Barr virus
replicative protein, BZLF1, by immunohistochemistry. RESULTS.
Epstein-Barr virus EBER1 transcripts were detected in 11 of 31 oral
lymphomas including 7 of 10 AIDS-related lymphomas and only 4 of 21
lymphomas that occurred in nonimmunocompromised persons. The
Epstein-Barr virus-containing lymphomas were all high-grade histologic
subtypes, that is, diffuse large cell, immunoblastic, or Burkitt's
lymphomas. In contrast, Epstein-Barr virus was not detected in any of
five low-grade oral lymphomas. In the single case of T-cell lymphoma in
this study, EBER1 was expressed in the tumor cells. A switch from viral
latency to replication, as measured by EBV BZLF1 expression, was
identified in rare lymphoma cells in only four cases. This rate of viral
replication was not higher than what has been reported in lymphomas
arising at other anatomic sites. Although one of our lymphomas arose at
a site of previous oral hairy leukoplakia, there was no other evidence
that Epstein-Barr virus replication predisposed to development or
persistence of oral lymphomas. CONCLUSIONS. These data suggest that even
though Epstein-Barr virus is frequently found in oral secretions,
neither latent nor replicative Epstein-Barr virus is present more
commonly in oral lymphomas than in lymphomas arising in other anatomic
sites, when controlling for immunodeficiency status.
DE Adolescence Adult Aged Aged, 80 and over Burkitt's Lymphoma/VIROLOGY
Child DNA-Binding Proteins/ANALYSIS Female Herpesvirus 4,
Human/ISOLATION & PURIF/*PATHOGENICITY Human Immunohistochemistry In
Situ Hybridization Lymphoma, AIDS-Related/VIROLOGY Lymphoma,
B-Cell/CLASSIFICATION/PATHOLOGY/*VIROLOGY Lymphoma, Large-Cell,
Diffuse/VIROLOGY Lymphoma, Large-Cell, Immunoblastic/VIROLOGY
Lymphoma, Non-Hodgkin's/CLASSIFICATION/PATHOLOGY/*VIROLOGY Male Middle
Age Mouth Neoplasms/CLASSIFICATION/PATHOLOGY/*VIROLOGY RNA,
Viral/ANALYSIS Support, U.S. Gov't, Non-P.H.S. Support, U.S. Gov't,
P.H.S. Trans-Activators/ANALYSIS Viral Proteins/ANALYSIS Virus
Activation Virus Latency Virus Replication JOURNAL ARTICLE
MULTICENTER STUDY
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).