DAPK, pSTAT3Y705, and TNF expression pattern in the intestinal epithelial cells of normal mucosa, UC, and UCC. Tissue sections derived from control and different stages of UC patients were analyzed by IHC. The pSTAT3Y705 expression was predominantly nuclear. Representative images of H&E (A–E), DAPK (F–J), pSTAT3Y705 (K–O), and TNF (P–T) staining in non-IBD (n = 11), inactive UC (n = 49), low-active UC (n = 41), highly-active UC (n = 15), and UCC (n = 24) are shown. Original magnification, ×200.