STAT3 and colitis: Through Western bolting assay, we verified the key proteins in the Bcl-6/Blimp-1 signaling pathway and found that SSP significantly inhibited expression of Bcl-6 (Figures 5A,C), STAT3 (Figures 5A,D), and p-STAT3 (Figures 5A,E) proteins and improved expression of Blimp-1 (Figures 5A,B) in colonic tissues of colitis mice.