ATP receptors and giant cell formation.

Abstract:

:We have investigated the role of the purinergic P2X7 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 P2X7-selective pharmacological antagonist or by a mAb directed against the extracellular P2X7 domain. Furthermore, macrophage cell clones expressing high P2X7 levels spontaneously fuse in culture, whereas macrophage clones lacking P2X7 are unable to fuse. Our findings suggest that the newly identified purinergic P2X7 receptor plays a central role in the complex chain of events leading to generation of macrophage-derived giant cells.

journal_name

J Leukoc Biol

authors

Di Virgilio F,Falzoni S,Chiozzi P,Sanz JM,Ferrari D,Buell GN

doi

10.1002/jlb.66.5.723

subject

Has Abstract

pub_date

1999-11-01 00:00:00

pages

723-6

issue

5

eissn

0741-5400

issn

1938-3673

journal_volume

66

pub_type

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