home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Shareware Overload Trio 2
/
Shareware Overload Trio Volume 2 (Chestnut CD-ROM).ISO
/
dir26
/
med9410p.zip
/
M94A3311.TXT
< prev
next >
Wrap
Text File
|
1994-10-25
|
2KB
|
38 lines
Document 3311
DOCN M94A3311
TI Identification of EBV-transformed lymphocytes in HIV-infected
lymphnodes.
DT 9412
AU Zheng H; Mori S; Dept. of Pathol., Univ. of Tokyo, Japan.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):105 (abstract no. PA0040). Unique
Identifier : AIDSLINE ICA10/94369264
AB OBJECTIVE: Most of AIDS-related lymphomas (AIDS-ML) are infected with
EBV. In order to investigate the origin of these neoplastic cells, we
made an analysis using molecular biologic methods. METHOD: We examined
35 cases of HIV-infected lymphnodes that were in PGL stage. For the
demonstration of EBERs, we used in situ hybridization, and for the
lymphocyte markers and EBV-produced oncoprotein LMP-1 (latent membrane
protein 1). we used immunostaining method. 20 cases of HIV-negative
lymphnodes were also studied as controls. RESULTS: EBV-encoded small
RNAs (EBERs)-positive cells were found in 15 out of 35 cases. All 20
cases of controls were negative for EBER. Immunostaining revealed many
of the EBER-positive cells to be positive for LMP, and most of the
EBER-positive cells to be in B cell lineage with CD20 and the remaining
part were macrophage positive for CD68. DISCUSSION: We found that much
increased number of EBV-bearing B cells, (and macrophages) are present
in lymphnodes of HIV-infected patients. We believe that these
EBV-positive B cells expressing EBERs and LMP-1 are the very precursor
cells of AIDS-lymphomas.
DE Antigens, Viral/GENETICS/METABOLISM
B-Lymphocytes/MICROBIOLOGY/PATHOLOGY Herpesvirus 4,
Human/GENETICS/IMMUNOLOGY/*ISOLATION & PURIF Human HIV
Infections/*MICROBIOLOGY/PATHOLOGY Lymph Nodes/*MICROBIOLOGY/PATHOLOGY
Lymphoma, AIDS-Related/*MICROBIOLOGY/PATHOLOGY
Macrophages/MICROBIOLOGY/PATHOLOGY RNA, Viral/GENETICS/ISOLATION &
PURIF Tumor Stem Cells/MICROBIOLOGY/PATHOLOGY Viral Matrix
Proteins/GENETICS/METABOLISM MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).