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1996-02-26
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Document 0805
DOCN M9620805
TI Cytokine expression in large cell lymphoma associated with acquired
immunodeficiency syndrome.
DT 9602
AU Marsh JW; Herndier B; Tsuzuki A; Ng VL; Shiramizu B; Abbey N; McGrath
MS; Department of Medicine, University of California, San Francisco;
94110, USA.
SO J Interferon Cytokine Res. 1995 Mar;15(3):261-8. Unique Identifier :
AIDSLINE MED/96075715
AB Cytokine expression was examined by reverse transcriptase-polymerase
chain reaction (RT-PCR) in a retrospective sampling of 16
AIDS-associated large cell lymphomas (LCL). IL-6 receptor (IL-6R) and
IL-10 expression was detected in a majority of the tumor specimens
tested, IL-6 expression was detected in 5 of 16 lymphomas that also
expressed IL-6R, suggestive of an autocrine mechanism of disease. A
subset of tumor samples described as mixed immunophenotype contained
large numbers of infiltrating T lymphocytes and macrophages.
Immunoperoxidase staining of a representative tumor of mixed
immunophenotype demonstrated the presence of HIV-infected macrophages
that also stained with anti-IL-6. This finding suggests that IL-6
produced by nonlymphoid cells may act as a paracrine growth factor for
tumor cells that express IL-6R. Although earlier studies of AIDs
burkitt's lymphoma cell lines suggested that IL-10 expression required
EBV infection, 7 of 12 AIDS LCLs that expressed IL-10 did so in the
absence of EBV by EBER in situ hybridization. Because AIDS LCLs
frequently express cell surface CD5, we speculate that IL-10 may act as
an autocrine or paracrine growth factor for this class of lymphoma.
These studies suggest that IL-6 and IL-10 are involved in the
pathogenesis of AIDS-associated large cell and mixed immunophenotype
lymphoma.
DE Base Sequence Cytokines/*BIOSYNTHESIS/GENETICS Herpesvirus 4,
Human/GENETICS/*ISOLATION & PURIF Human Immunoenzyme Techniques
Interleukin-10/BIOSYNTHESIS/GENETICS
Interleukin-6/BIOSYNTHESIS/GENETICS Lymphocytes,
Tumor-Infiltrating/IMMUNOLOGY Lymphoma,
AIDS-Related/COMPLICATIONS/*IMMUNOLOGY/VIROLOGY Lymphoma,
Large-Cell/COMPLICATIONS/*IMMUNOLOGY/VIROLOGY Molecular Sequence Data
Retrospective Studies RNA/BIOSYNTHESIS RNA, Viral/ANALYSIS Support,
Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).