Back to Search
Start Over
Role of secretory and cytosolic phospholipase A2 enzymes in lysophosphatidylcholine-stimulated monocyte arachidonic acid release
- Source :
-
FEBS Letters . Dec2003, Vol. 555 Issue 2, p257. 6p. - Publication Year :
- 2003
-
Abstract
- To determine if lysophosphatidylcholine (lysoPC) is able to induce proinflammatory changes in monocytes, its ability to stimulate arachidonic acid (AA) release, a product of phospholipase A2 (PLA2) activity, has been analyzed. LysoPC increased AA release in THP-1 and Mono Mac6 cells in a time- and concentration-dependent manner. The monocytes expressed both secretory and cytosolic PLA2 enzymes and AA release was strongly reduced by cellular pretreatment with different PLA2 inhibitors and by pertussis toxin, an inhibitor of Gi-protein activation. This indicates that both cytosolic and secretory PLA2 enzymes regulate specific lysoPC receptor-induced AA release, suggesting lysoPC participation in monocyte proinflammatory activation. [Copyright &y& Elsevier]
- Subjects :
- *INFLAMMATION
*MONOCYTES
*FATTY acids
*PHOSPHOLIPASES
Subjects
Details
- Language :
- English
- ISSN :
- 00145793
- Volume :
- 555
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- FEBS Letters
- Publication Type :
- Academic Journal
- Accession number :
- 11537862
- Full Text :
- https://doi.org/10.1016/S0014-5793(03)01242-0