Figure 4From: Trichinella spiralis dipeptidyl peptidase 1 suppressed macrophage cytotoxicity by promoting M2 polarization via the STAT6/PPARγ pathway Expression levels of M1/M2 marker proteins in murine peritoneal macrophages. Peritoneal macrophages were collected from normal BALB/C mice and treated with various stimulating factors. A Western blotting of the expression levels of iNOS, p-STAT6, STAT6, PPARγ and Arg1 in various groups of treated macrophages. Tubulin served as the internal control. B–F The protein signal intensity of iNOS, Arg1, p-STAT6, STAT6, and PPARγ relative to the intensity of tubulin. *P < 0.05 compared to the PBS group.Back to article page