ATP‐dependent leukotriene export from mastocytoma cells
ATP‐dependent leukotriene export from mastocytoma cells
复制标题
肥大细胞瘤细胞的 ATP 依赖性白三烯输出
DOI:
10.1016/0014-5793(91)80256-3
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发表时间:
1991
期刊:
影响因子:
3.5
通讯作者:
D. Keppler
中科院分区:
文献类型:
--
作者:
T. Schaub;T. Ishikawa;D. Keppler
The biosynthesis of leukotrienes (LT) C4and B4is followed by an export of these mediators into the extracellular space. This transport was characterized using plasma membrane vesicles prepared from mastocytoma cells and identified as an ATP‐dependent primary active process. The apparentKm‐values were 110 nM for LTC4and 48 μM for ATP. The transport rate was highest for LTC4, whereas LTD4, LTE4, andN‐acetyl‐LTE4were transported with relative rates of 31, 12 and 8%, respectively, at a concentation of 10nM. LTB4transport was also dependent on ATP, LTC4transport with inhibited by LTD4receptor antagonists (IC10= 1.0 μM for MK‐571 and 1.3 μM for LY245769) and by the inhibitor of leukotriene biosynthesis MK‐886 (IC10= 1.8 μM). The ATP‐dependent export carrier for leukotrienes in leukotriene‐synthesizing cells represents a novel member of the family of ATP‐dependent exit pumps.
DOI:
--
发表时间:
1990
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lam,BK;Gagnon,L;Austen,KF;Soberman,RJ
通讯作者:
Soberman,RJ
DOI:
--
发表时间:
1989
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lam,BK;OwenJr,WF;Austen,KF;Soberman,RJ
通讯作者:
Soberman,RJ