home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Shareware Overload Trio 2
/
Shareware Overload Trio Volume 2 (Chestnut CD-ROM).ISO
/
dir26
/
med9410p.zip
/
M94A3197.TXT
< prev
next >
Wrap
Text File
|
1994-10-25
|
3KB
|
47 lines
Document 3197
DOCN M94A3197
TI The effect of glycyrrhizin in mice infected with murine retrovirus. II.
Inhibitory effects on proliferation and function of lymphoid cells.
DT 9412
AU Watanabe H; Miyaji C; Makino M; Abo T; Dep. of Immuno., Niigata Univ.
Sch. of Med., Japan.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):130 (abstract no. PA0140). Unique
Identifier : AIDSLINE ICA10/94369378
AB OBJECTIVE: Glycyrrhizin (GL) was found to be effective in HIV infected
patients as shown by improvements of their clinical symptoms and of
their immunological and liver function. GL activated selectively
extrathymic T cells in the liver, and it is suspected that this
phenomenon might be intimately related to such the clinical effect. In
this studies, we investigated as to its effects on T cells of mice,
murine AIDS (MAIDS) model. METHODS: C57BL/6 mice were inoculated with
LP-BM5 MuLV. Treatment with GL was began 0 day or 4 weeks after the
virus inoculation, three times a week. The cell surface phenotypes in
various lymphoid organs were analyzed by flowcytometry. The production
of cytokines of spleen cells and their responsiveness to IL-2 and SEB
were also analyzed. RESULTS: A new method using anti-IL-2R beta chain
MoAb and anti-CD3 MoAb could sensitively identify extrathymic T cells
(CD3 intermediate and IL-2R beta +) in the liver. The cells from various
organs in mice infected with the virus alone showed the phenotypic
pattern of the expansion of extrathymic T cells. From these finding, we
considered that the MuLV infection induced the over-activation of
extrathymic T cells. Some mice treated with GL showed no signs of
disease. GL had no effect on the restoration of IL-2 production and
responsiveness to IL-2 and SEB, but effectively inhibited the abnormal
production of IL-4, IFN-gamma and IL-6. CONCLUSIONS: These results
suggested that GL had an ability to selectively control the
over-activation of extrathymic T cells and the over-production of
certain cytokines.
DE Animal Antiviral Agents/*PHARMACOLOGY Cytokines/*BIOSYNTHESIS Flow
Cytometry Glycyrrhetinic Acid/*ANALOGS & DERIVATIVES/PHARMACOLOGY/
THERAPEUTIC USE Human HIV Infections/DRUG THERAPY Interferon Type
II/BIOSYNTHESIS Interleukin-2/PHARMACOLOGY Interleukin-4/BIOSYNTHESIS
Interleukin-6/BIOSYNTHESIS *Leukemia Viruses, Murine Lymphocyte
Transformation/*DRUG EFFECTS Lymphoid Tissue/DRUG EFFECTS/*IMMUNOLOGY
Mice Mice, Inbred C57BL Murine Acquired Immunodeficiency
Syndrome/*IMMUNOLOGY/PREVENTION & CONTROL T-Lymphocytes/DRUG
EFFECTS/*IMMUNOLOGY MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).