Figure 4From: Murine CD4+CD25- cells activated in vitro with PMA/ionomycin and anti-CD3 acquire regulatory function and ameliorate experimental colitis in vivo Histopathology of mouse colon. Representative whole-colon photographs of H&E stained tissue sections of negative control mouse (A), TregPMA cell treated mouse (B) and positive control mouse with ulceration manifestation (C).Back to article page