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1994-10-01
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Document 0154
DOCN M94A0154
TI The kinetics of cytokine secretion and proliferation by mesenteric lymph
node cells during the progression to murine AIDS, caused by LP-BM5
murine leukemia virus infection.
DT 9412
AU Huang DS; Wang Y; Marchalonis JJ; Watson RR; Department of Family &
Community Medicine, University of Arizona,; Tucson 85724.
SO Reg Immunol. 1993 Nov-Dec;5(6):325-31. Unique Identifier : AIDSLINE
MED/94347595
AB A murine acquired immunodeficiency syndrome (MAIDS) is induced in
genetically susceptible strains of mice inoculated with LP-BM5 murine
leukemia virus. It is characterized by progressive lymphoproliferation,
profound immunodeficiency, and the subsequent loss of resistance to
opportunistic pathogens, including intestinal pathogens. Cellular and/or
humoral immunity of gut-associated lymphoid tissues may play a key role
in the elimination of these pathogens. We have previously demonstrated
reductions in the number of mucosal T and B cells in MAIDS. In this
study, the cytokine production by mesenteric lymph nodes (MLN) cells and
their proliferative response to mitogens during MAIDS were investigated.
Alterations were observed in the kinetics of MLN cell proliferation and
cytokine secretion by in vitro mitogen-stimulated MLN cells during the
retrovirus infection. Cytokine production was abnormally changed, with a
gradual decrease in interleukin-2 (IL-2) production as well as an
increase in IL-5 and IL-6 secretion. Interferon-gamma production was
increased during the progression to MAIDS. The dysregulated release of
cytokines by MLN cells due to retrovirus infection could lead to immune
dysfunction. These data indicate that dysregulated cytokine secretion by
MLN cells may be responsible for impaired mucosal immunity in AIDS,
explaining the dramatic increase of opportunistic intestinal pathogens
in individuals with AIDS.
DE Animal Body Weight Cell Division Cells, Cultured
Cytokines/*SECRETION DNA/BIOSYNTHESIS Enzyme-Linked Immunosorbent
Assay Female Leukemia Viruses, Murine Lymph Nodes/*IMMUNOLOGY
Mesentery Mice Mice, Inbred C57BL Mitogens Murine Acquired
Immunodeficiency Syndrome/*IMMUNOLOGY Organ Weight Support, U.S.
Gov't, P.H.S. JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).