Research Article

Sphingosine Kinase 1 Plays an Important Role in Atorvastatin-Mediated Anti-Inflammatory Effect against Acute Lung Injury

Figure 6

JNK plays a critical role in sphingosine kinase 1-mediated inflammatory response to cyclic stretch. The isolated ECs were seeded on Flexcell plates overnight in the presence of the indicated inhibitors. After cyclic stretching (CS) (18% elongation, 0.5 Hz, 4 hours) as described in Figure 4, the medium was harvested for ELISA. (a) IL6 and KC assay showed that SphK1 knockout significantly enhanced CS-mediated IL6 and KC generation. The SphK1 knockout-mediated IL6 generation enhancement was not significantly abolished by PD98059 but partially by SB203580 and completely by JNK inhibitor II. (b) The SphK1 knockout-mediated KC generation enhancement was not significantly abolished by PD98059 and SB203580, but completely by JNK inhibitor II (, ).
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