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1996-03-30
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Document 1006
DOCN M9651006
TI [Effects of beta-adrenergic compounds on IgE production]
DT 9505
AU Coqueret O; Lagente V; Molecular Oncology group, Royal Victoria
Hospital, McGill; University, Montreal, Quebec, Canada.
SO Allerg Immunol (Paris). 1995 Dec;27(10):358-62. Unique Identifier :
AIDSLINE MED/96157219
AB We studied the effects of beta 2-adrenoceptor agonist on IgE production
in vitro in human and in vitro and in vivo in mouse. We observed that
salbutamol and fenoterol potentiate the IL-4-induced IgE production from
peripheral blood mononuclear cells. This effect is associated by an
enhanced mRN expression for IgE. Fenoterol also potentiated, but in a
lesser extent, the IgE production from purified B lymphocytes stimulated
by both IL-4 and CD40, suggesting that the activity of beta
2-adrenoceptor agonist is mediated through T lymphocyte or monocyte
modulation. Fenoterol also inhibited the PHA-induced IFN-gamma
production by T lymphocytes. Analogues of cAMP or activator of PKA also
elicited an increase in IgE production. Moreover, the effect of
fenoterol on IgE production was suppressed in the presence of PKA
inhibitor. Salbutamol also potentiated the IL-4-induced IgE production
from murine splenocytes activated by LPS. Furthermore, mice sensitized
to ovalbumin elicited increased IgE responses after daily injection of
salbutamol. This was accompanied by an increased in cytokines of Th2
subtypes. Our results showed that beta 2-adrenoceptor agonist, which are
currently used in the treatment of asthma, potentiate the IgE production
in vitro and in vivo.
DE Adrenergic beta-Agonists/*PHARMACOLOGY Albuterol/PHARMACOLOGY Animal
Anti-Asthmatic Agents/PHARMACOLOGY Antibody Formation/DRUG EFFECTS
Antigens, CD40/PHYSIOLOGY Antigens, Surface/BIOSYNTHESIS
Cytokines/SECRETION Drug Synergism English Abstract
Fenoterol/PHARMACOLOGY Human IgE/*BIOSYNTHESIS Interferon Type
II/SECRETION Interleukin-4/PHARMACOLOGY Lymphocyte Cooperation/DRUG
EFFECTS Mice Mice, Inbred BALB C Phytohemagglutinins/PHARMACOLOGY
Receptors, Adrenergic, beta-2/*AGONISTS T-Lymphocytes/DRUG
EFFECTS/SECRETION Th2 Cells/DRUG EFFECTS/SECRETION JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).