Inhibitors of secreted phospholipase A 2 suppress the release of PGE 2 in renal mesangial cells
作者:Sofia Vasilakaki、Efrosini Barbayianni、Victoria Magrioti、Oleksandr Pastukhov、Violetta Constantinou-Kokotou、Andrea Huwiler、George Kokotos
DOI:10.1016/j.bmc.2016.05.017
日期:2016.7
The upregulation of PGE(2) by mesangial cells has been observed under chronic inflammation condition. In the present work, renal mesangial cells were stimulated to trigger a huge increase of PGE(2) synthesis and were treated in the absence or presence of known PLA(2) inhibitors. A variety of synthetic inhibitors, mainly developed in our labs, which are known to selectively inhibit each of GIVA cPLA(2), GVIA iPLA(2), and GIIA/GV sPLA(2), were used as tools in this study. Synthetic sPLA(2) inhibitors, such as GK115 (an amide derivative based on the non-natural amino acid (R)-gamma-norleucine) as well as GK126 and GK241 (2-oxoamides based on the natural (S)-alpha-amino acid leucine and valine, respectively) presented an interesting effect on the suppression of PGE(2) formation. (C) 2016 Elsevier Ltd. All rights reserved.