Document 0133 DOCN M9490133 TI Immunodeficiency and IL-6 production by peripheral blood monocytes in multicentric Castleman's disease. DT 9411 AU Ishiyama T; Nakamura S; Akimoto Y; Koike M; Tomoyasu S; Tsuruoka N; Murata Y; Sato T; Wakabayashi Y; Chiba S; Department of Haematology, Showa University School of Medicine,; Japan. SO Br J Haematol. 1994 Mar;86(3):483-9. Unique Identifier : AIDSLINE MED/94318460 AB To study the pathogenesis of multicentric Castleman's disease (MCD), IL-6 producing cells and immune function were investigated in four MCD patients. The expression of IL-6 mRNA in one MCD lymph node was analysed by in situ hybridization. IL-6 mRNA expressing cells were scattered in the interfollicular areas and did not resemble plasma cells. Spontaneous IL-6 production was detected in the culture supernatants of peripheral blood mononuclear cells (PBMNC) from four patients. The IL-6 producing cells among the PBMNC were found to be monocytes by both in situ hybridization and immunohistochemistry. We evaluated immune function in four MCD patients. These studies show: (1) a negative PPD skin test in 3/4 patients, (2) decreased IL-2 production in 3/4 patients, (3) decreased T cell colony formation in 3/4 patients, (4) decreased NK activity and NK cell number in 2/4 patients, (5) increased soluble IL-2 receptor in 4/4 patients, and (6) decreased CD4/CD8 ratio in 3/4 patients. These results show that MCD resembles, in several ways, acquired immunodeficiency syndrome (AIDS). DE Aged Aged, 80 and over CD4-CD8 Ratio Female Giant Lymph Node Hyperplasia/*IMMUNOLOGY Human Immune Tolerance/*IMMUNOLOGY In Situ Hybridization Interleukin-1/BLOOD Interleukin-6/*BIOSYNTHESIS/BLOOD/GENETICS Killer Cells, Natural/IMMUNOLOGY Lymph Nodes/IMMUNOLOGY Male Middle Age Monocytes/*IMMUNOLOGY Phytohemagglutinins/IMMUNOLOGY Receptors, Interleukin-2/ANALYSIS RNA, Messenger/ANALYSIS T-Lymphocytes/IMMUNOLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).