Research Article

The Nitrated Fatty Acid 10-Nitro-oleate Diminishes Severity of LPS-Induced Acute Lung Injury in Mice

Figure 1

OA-NO2 activates PPAR- in airway epithelial cells. Binding of OA-NO2 to the PPAR- ligand-binding domain was modeled in silico. Results are presented as (a) space-filling representation; (b) schematic representation showing interactions of PPAR- residues with specific groups in the OA-NO2 ligand. Hydrogen bonds are indicated by dotted lines. A549 cells were transiently transfected with pRLSV40 and with one of the following constructs: (c) PPAR-dependent luciferase reporter, pFATPluc; (d) PPAR- GAL4 reporter system (UASG 4 TK-luciferase + GAL4-PPAR- ). Cells were then incubated with vehicle (DMSO), OA-NO2 (0.1–5 μM), or rosiglitazone (0.1–5 μM). After 24 h, luciferase activity was measured with a dual luciferase activity kit and normalized to that of Renilla luciferase. Data are representative of one of two independent experiments; ; *** versus vehicle.