Effect of KLK peptide on LPS-induced PGE<sub>2</sub> production in RAW 264.7 macrophages. JantarukPornpimon RoytrakulSittiruk SitthisakSutthirat KunthalertDuangkamol 2017 <p>Cells were stimulated with LPS (1 μg/mL) in the presence or absence of KLK peptide (5, 10 and 25 μg/mL) or indomethacin (10 μM) for 48 h. After the incubation, PGE<sub>2</sub> concentration in culture supernatant was measured by enzyme-immunoassay. Data are presented as mean ± SD of independent experiments. ##, <i>P</i> <0.01 compared with the unstimulated macrophages; **, <i>P</i> < 0.01 compared with the LPS-stimulated macrophage cells.</p>