Pathophysiology of ulcerative colitis - Relationship with genetics and immunity.
- Author:
Geom Seog SEO
1
;
Suck Chei CHOI
Author Information
1. Department of Internal Medicine, Digestive Disease Research Institute, Wonkwang University School of Medicine, Iksan, Korea.
- Publication Type:Review
- Keywords:
Ulcerative colitis;
Genes;
Immune response;
T-cell;
Genetic susceptibility
- MeSH:
Antigens, Bacterial;
Colitis, Ulcerative;
Genetic Predisposition to Disease;
Humans;
Phenotype;
Prognosis;
T-Lymphocytes;
Ulcer
- From:Korean Journal of Medicine
2009;76(6):643-648
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The current paradigm holds that ulcerative colitis occurs in genetically predisposed individuals because of dysregulated immune responses against intraluminal bacterial antigens. Recently, numerous new genes have been identified as involved in the genetic susceptibility to ulcerative colitis, including IL-23R, MST1, IL-12B (p40), NKX2-3, and STAT3. Experimental studies of ulcerative colitis point to an excessive T-cell response to antigenic stimulus resulting in damage to host intestinal tissue. The T-cell response in ulcerative colitis appears to be TH2 dominant (IL-5, IL-13) and mediated by specialized cells, such as NK T-cells. The characterization of these novel genes and immunologic basis should lead to the identification of therapeutic agents and a better clinical assessment of phenotype and prognosis in patients with ulcerative colitis.
