CHEMBL3706367

Release Assay: Each of Compounds (1) to (6) was dissolved in 100% DMSO so as to obtain stock to compound solutions with concentrations of 0.01, 0.03, 0.1, 0.3, 1, 3 or 10 mM) for each of Compounds (1) to (6). 7500 of the neutrophil suspension obtained in -3. Preparation of human neutrophil under the section of -Experimental materials was added with 200 uM of MeO-Suc-Ala-Ala-Pro-Val-p-nitroanilide (454454, Calbiochem Limited, dissolved in 750 ul HBSS and functioned as a substrate for human neutrophils) at a is volume ratio of 1:1 (the final volume was 1.5 ml), stirred at 37 C. for 2 minutes, followed by addition with 1.5 ul of the aforesaid compound solution and reaction at 37 C. for 2 minutes. In a control group, 100% DMSO was used to substitute the compound solution. Moreover, Sivelestat (with concentrations of 0.01, 0.03, 0.1, 0.3, 1, 3 or 10 mM in DMSO) was used to substitute the compound solution as a positive control group.