Lymphocyte cell motility: the twisting, turning tale of phosphoinositide 3-kinase.

Abstract:

:The PI3K (phosphoinositide 3-kinase) family of lipid kinases regulate cell motility in diverse organisms and cell types. In mammals, the main PI3K enzyme activated by chemokine receptor signalling is the class IB isoform, p110gamma. Studies of p110gamma-knockout mice have shown an essential function for this isoform in chemotaxis of neutrophils and macrophages both in vitro and in vivo. However, the roles of p110gamma and other PI3K enzymes and regulatory subunits in lymphocyte motility have been more difficult to discern. Recent studies of adoptively transferred, fluorescently labelled lymphocytes have revealed complex and unexpected functions for PI3K in lymphocyte migration in vivo. In this review we highlight cell-type-specific roles for PI3K catalytic and regulatory subunits in the homing and basal motility of lymphocytes in the intact lymph node.

journal_name

Biochem Soc Trans

authors

Oak JS,Matheu MP,Parker I,Cahalan MD,Fruman DA

doi

10.1042/BST0351109

subject

Has Abstract

pub_date

2007-11-01 00:00:00

pages

1109-13

issue

Pt 5

eissn

0300-5127

issn

1470-8752

pii

BST0351109

journal_volume

35

pub_type

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