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1996-02-27
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Document 0678
DOCN M9630678
TI Down-regulation of Epstein-Barr virus nuclear antigen 1 in
Reed-Sternberg cells of Hodgkin's disease.
DT 9603
AU Khan G; Naase MA; Department of Pathology, Tufts University School of
Medicine,; Boston, MA 02111, USA.
SO J Clin Pathol. 1995 Sep;48(9):845-8. Unique Identifier : AIDSLINE
MED/96096274
AB AIMS--To demonstrate Epstein-Barr virus (EBV) encoded nuclear antigen 1
(EBNA-1) gene expression in EBV associated disorders using a new
monoclonal antibody (1H4-1) on routinely processed tissues. METHODS--The
pressure cooker antigen retrieval method was used for the
immunohistochemical demonstration of EBNA-1 gene expression in formalin
fixed, EBV positive tissues from Hodgkin's disease, infectious
mononucleosis, HIV associated non-Hodgkin's lymphomas, post-transplant
lymphomas, and undifferentiated nasopharyngeal carcinoma (NPC). EBV
encoded EBNA-2, latent membrane protein 1 (LMP-1) and BZLF-1 gene
expression was also examined using commercially available monoclonal
antibodies. RESULTS--Of the 34 EBER in situ hybridisation positive cases
of Hodgkin's disease examined, none expressed EBNA-1 in the
Reed-Sternberg cells. These cells were nevertheless strongly LMP-1
positive in all cases. Strong EBNA-1 staining was seen in all cases of
EBER positive HIV associated non-Hodgkin's lymphoma (five of five),
nasopharyngeal carcinoma (five of five), infectious mononucleosis (three
of three), and post-transplant lymphoma (one of one). These cases also
expressed LMP-1, EBNA-2 and BZLF-1, but at differing levels.
CONCLUSION--The pressure cooker antigen retrieval procedure is a
sensitive and reliable adjunct to immunohistochemistry, especially with
antibodies which are otherwise ineffective on routinely processed
tissues. The EBNA-1 gene is not expressed at detectable levels in the
malignant cells of Hodgkin's disease, but is consistently expressed in
other EBV associated disorders. This finding has important implications
for the role of EBNA-1 in the biology of EBV.
DE Antibodies, Monoclonal Antigens, Viral/GENETICS/*METABOLISM
*Down-Regulation (Physiology) DNA-Binding Proteins/GENETICS/*METABOLISM
Herpesvirus 4, Human/*IMMUNOLOGY/ISOLATION & PURIF Hodgkin's
Disease/IMMUNOLOGY/*VIROLOGY Human Immunoenzyme Techniques In Situ
Hybridization Reed-Sternberg Cells/IMMUNOLOGY/*VIROLOGY Support,
Non-U.S. Gov't Tumor Cells, Cultured JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).