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P Brousset, S Chittal, D Schlaifer, J Icart, C Payen, F Rigal-Huguet, JJ Voigt and G Delsol
Groupe d'Etude des Lymphomes Malins, CHU-Purpan; Toulouse, France.
Microscopic intracellular detection of Epstein-Barr virus (EBV) messenger
RNA in Reed-Sternberg cells of Hodgkin's disease (HD) was possible by in
situ hybridization, in tissue sections prepared by a method termed modified
acetone methyl benzoate xylene (ModAMeX). The ModAMeX method was initially
developed for simultaneous optimal preservation of leucocyte
differentiation antigens and morphology. Two biotinylated DNA probes,
corresponding to the same BamHI-W (internal repeat) of the EBV genome were
used. EBV mRNA was detected in neoplastic cells in 16 of 54 (30%) lymph
node biopsy specimens from usual subtypes of HD (lymphocyte predominance,
0/5; nodular sclerosis, 4/22; mixed cellularity, 12/26; unclassified, 0/1).
EBV mRNA was also detected in the lymph node biopsy of 1 additional human
immunodeficiency virus (HIV)-related case of HD (mixed cellularity) and in
2 of 4 cases of B-cell lymphomas occurring in patients with acquired
immunodeficiency syndrome (AIDS). In other non-Hodgkin's lymphomas, EBV
mRNA was detected in only 1 of 41 cases. Cases of HD positive for EBV mRNA
were immunostained by CD30 and CD15 antibodies. The hybridization signals
were exclusively restricted to Reed-Sternberg cells and variants. When
analyzed retrospectively, no statistically significant correlation emerged
between hybridization findings, EBV serology, or disease outcome over the 3
years of the availability of ModAMeX technique. The findings support the
contention of a direct role of EBV in the pathogenesis of HD, at least in
some cases.
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| Copyright © 1991 by American Society of Hematology Online ISSN: 1528-0020 | |||||||||