图片来源：Neurath MF. New?targets?for?mucosal?healing?and?therapy?in?inflammatory bowel diseases. Mucosal?Immunol.?2014 Jan; 7(1): 6-19.
Inflammatory bowel disease (IBD) is a chronic non-specific inflammatory disease of the intestine chronic whose cause is not well understood, including ulcerative colitis (UC) and Crohn's disease (CD). IBD has become a common disease of digestive system in China, and the demand for treatment is huge and unmet.