Comparison of the effects of indomethacin, RHC80267 and R59022 on superoxide production by 1,oleoyl-2,acetyl glycerol and A23187 in human neutrophils
Open Access
- 1 September 1987
- journal article
- research article
- Published by Wiley in British Journal of Pharmacology
- Vol. 92 (1), 63-68
- https://doi.org/10.1111/j.1476-5381.1987.tb11296.x
Abstract
1 Indomethacin (10−4 m) causes marked augmentation of O−2release from human neutrophils when these are stimulated by either 1,oleoyl-2,acetylglycerol or the divalent cation ionophore, A23187, the concentration-response curve for each agent being shifted to the left and the maximum response to each increased. 2 The diacylglycerol kinase inhibitor, R59022 (10−5 m) has effects very similar to those of indomethacin on both the 1,oleoyl-2,acetylglycerol-induced and the A23187-induced concentration-response curves for O2- generation. 3 The diacylglycerol lipase inhibitor, RHC80267 (10−5 m) on the other hand, has a similar effect to indomethacin on 1,oleoyl-2,acetylglycerol-induced O−2 generation but, unlike indomethacin, has no effect on A23187-induced O−2 generation. 4 Comparison of the effects of these three agents provides a clue to the locus of the action of indomethacin in increasing superoxide release, suggesting that it may act as a diacylglycerol kinase inhibitor. A component of diacylglycerol lipase inhibition may also be present. It is suggested that these results could have relevance for the use of indomethacin as an anti-inflammatory agent in chronic rheumatoid diseases.This publication has 25 references indexed in Scilit:
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