ATP receptors and giant cell formation

被引:41
作者
Di Virgilio, F
Falzoni, S
Chiozzi, P
Sanz, JM
Ferrari, D
Buell, CN
机构
[1] Univ Ferrara, Dept Expt & Diagnost Med, Sect Gen Pathol, I-44100 Ferrara, Italy
[2] Univ Ferrara, Ctr Biotechnol, I-44100 Ferrara, Italy
[3] Serono Pharmaceut Res Inst, Geneva, Switzerland
关键词
P2 purinergic receptor; chronic inflammation; granuloma;
D O I
10.1002/jlb.66.5.723
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
We have investigated the role of the purinergic P2X(7) receptor in the formation of multinucleated giant cells in human monocyte/macrophage cultures stimulated with either concanavalin A or phytohemagglutinin. Macrophage fusion can be blocked by a P2X(7)-selective pharmacological antagonist or by a mAb directed against the extracellular P2X(7) domain, Furthermore, macrophage cell, clones expressing high P2X(7) levels spontaneously fuse in culture, whereas macrophage clones lacking P2X(7) are unable to fuse, Our findings suggest that the newly identified purinergic P2X(7) receptor plays a central role in the complex chain of events leading to generation of macrophage-derived giant cells.
引用
收藏
页码:723 / 726
页数:4
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