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M9630383.TXT
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1996-02-27
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Document 0383
DOCN M9630383
TI Effect of exogenous leukotriene B4 (LTB4) on BALB/c mice splenocyte
production of Th1 and Th2 lymphokines.
DT 9603
AU Arcoleo F; Milano S; D'Agostino P; Cillari E; Institute of General
Pathology, University of Palermo, Italy.
SO Int J Immunopharmacol. 1995 Jun;17(6):457-63. Unique Identifier :
AIDSLINE MED/96022693
AB The effect of exogenous leukotriene B4 (LTB4) on the production of
cytokines typical of Th1 (interleukin-2 and interferon-gamma) and Th2
(interleukin-4 and interleukin-10) lymphocytes was studied. Splenocytes
were stimulated with concanavalin A (ConA) with or without different
concentrations of LTB4 (3 x 10(-10) to 3 x 10(-7) M) for various times
in the presence of BW 755C to inhibit the endogenous synthesis of
eicosanoids. LTB4 was not able to induce cytokine secretion by itself.
However, LTB4 augmented ConA spleen cell production of interleukin-2
(IL-2) and interferon-gamma (IFN-gamma) from Th1 cells and interleukin-4
(IL-4) and interleukin-10 (IL-10) from Th2 cells more than the controls
treated with ConA alone. The pre-exposition of splenocytes to LTB4 for 3
h made these cells more sensitive to ConA in terms of IL-2 and IL-10
production than those treated with LTB4 at the onset of the incubation
and maintained during the whole culture period. The results suggest that
LTB4 may participate as a component of the signal transduction process
for ConA-induced Th1 and Th2 cytokine production in a time-dependent
manner.
DE Animal Female Interferon Type II/BIOSYNTHESIS
Interleukin-10/BIOSYNTHESIS Interleukin-2/BIOSYNTHESIS
Interleukin-4/BIOSYNTHESIS Leukotriene B4/*PHARMACOLOGY
Lymphokines/*BIOSYNTHESIS/*DRUG EFFECTS Mice Mice, Inbred BALB C
Pregnancy Spleen/CYTOLOGY/METABOLISM Support, Non-U.S. Gov't Th1
Cells/*DRUG EFFECTS/METABOLISM Th2 Cells/*DRUG EFFECTS/METABOLISM
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).