Granulocyte-macrophage colony-stimulating factor enhances 5-lipoxygenase levels in human polymorphonuclear leukocytes.
Granulocyte-macrophage colony-stimulating factor enhances 5-lipoxygenase levels in human polymorphonuclear leukocytes.
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粒细胞巨噬细胞集落刺激因子可增强人多形核白细胞中 5-脂氧合酶的水平。
DOI:
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发表时间:
1994
影响因子:
4.4
通讯作者:
Shaun R. Mccoll
中科院分区:
文献类型:
--
作者:
Marc Pouliot;P. McDonald;L. Khamzina;Pierre Borgeat;Shaun R. Mccoll
Stimulation of human polymorphonuclear leukocytes (PMNL) with granulocyte-macrophage CSF (GM-CSF) results in the enhanced expression of several genes, including some coding for cytokines and enzymes. In this study, we investigated the ability of GM-CSF to up-regulate the human neutrophil 5-lipoxygenase (5-LO), a key enzyme in the leukotriene synthetic pathway. GM-CSF induced a dose- and time-dependent de novo synthesis of the 5-LO in PMNL, as determined by immunoprecipitation of 35S-methionine-labeled 5-LO. This up-regulation occurred within 30 min of treatment with GM-CSF and was observed using concentrations of GM-CSF as low as 30 pM. Prior treatment of the cells with the protein synthesis inhibitor cycloheximide abolished this effect of GM-CSF. Western blot analyses demonstrated that levels of 5-LO did not vary over a 6-h period in unstimulated PMNL treated with CX, and that GM-CSF induced a rapid increase in the total cellular level of 5-LO protein; taken together these results indicated a translational effect of GM-CSF on the expression of the 5-LO. However, GM-CSF did not significantly affect the level of 5-LO mRNA in neutrophils, as determined by Northern blot analysis. Furthermore GM-CSF did not alter the stability of 5-LO mRNA, in agreement with a posttranscriptional effect of GM-CSF on 5-LO expression in PMNL. These results show that human PMNL are capable of up-regulating the expression of the 5-LO in response to physiologic activation.
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DOI:
--
发表时间:
1988
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
DiPersio,JF;Billing,P;Williams,R;Gasson,JC
通讯作者:
Gasson,JC
DOI:
--
发表时间:
1988
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Naccache,PH;Faucher,N;Borgeat,P;Gasson,JC;DiPersio,JF
通讯作者:
DiPersio,JF
影响因子:
15.9
作者:
LOPEZ, AF;WILLIAMSON, DJ;VADAS, MA
通讯作者:
VADAS, MA
DOI:
10.1016/0090-6980(88)90013-5
发表时间:
1988
期刊:
Prostaglandins
影响因子:
--
作者:
DiPersio,JF;Naccache,PH;Borgeat,P;Gasson,JC;Nguyen,MH;McColl,SR
通讯作者:
McColl,SR
DOI:
--
发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Silberstein,DS;Owen,WF;Gasson,JC;DiPersio,JF;Golde,DW;Bina,JC;Soberman,R;Austen,KF;David,JR
通讯作者:
David,JR