(A) Local intestinal mucosa from control non-IBD, inflamed Crohn’s disease, or inflamed ulcerative colitis were immunostained with anti-CD3, anti-pS381-TNFR1, and anti-CD20 respectively. (B) Intestinal tissue samples obtained from non-IBD, Crohn’s disease, and ulcerative colitis were immunostained with anti-CD20 to show the B cell follicles