Abstract:
:We observed that lysophosphatidylglycerol (LPG) stimulates chemotactic migration in human natural killer (NK) cells. The LPG-induced chemotactic migration of NK cells was completely inhibited by pertussis toxin (PTX). LPG also stimulated the extracellular signal-regulated kinase (ERK) and Akt activities in NK cells. LPG-stimulated ERK activity was inhibited by PTX, indicating the involvement of PTX-sensitive G-proteins. The preincubation of NK cells with an ERK inhibitor (PD98059) or phosphoinositide-3-kinase (PI3K) inhibitors (wortmannin and LY294002) completely inhibited LPG-induced chemotactic migration, suggesting the essential role of ERK and PI3K in the process. Moreover, LPG-induced chemotactic migration in NK cell was inhibited by Ki16425, an LPA(1/3) receptor-selective antagonist, suggesting the involvement of the Ki16425-sensitive G-protein coupled receptor (GPCR) in the process. Taken together, the results indicate that LPG stimulates chemotactic migration in NK cells through GPCR, suggesting a new function of LPG as a modulator of NK cell functioning.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Jo SH,Kim SD,Kim JM,Lee HY,Lee SY,Shim JW,Yun J,Im DS,Bae YSdoi
10.1016/j.bbrc.2008.05.004subject
Has Abstractpub_date
2008-07-18 00:00:00pages
147-51issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(08)00900-5journal_volume
372pub_type
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