Hanan El-Bassat, Lobna Abo Ali, Sahar El Yamany, Hanan Al Shenawy, Rasha A Al Din and Atef Taha
Background and study aims: The purpose of this study is to determine whether mucosal expression of IL 23 p 19 has role in the pathogenesis of ulcerative colitis and its relation to disease severity.
Materials and methods: This study was carried out on 50 patients with ulcerative colitis and 10 normal individuals as control. They were divided into: Group I: 27 patients with mild to moderate disease. Group II: 23 patients with severe disease. Group III: 10 normal individuals. All patients and control were subjected to histopathological study, IL-23p19 immunohistochemical staining, IL-23R expression by flow cytometry and serum IL-23 by ELISA.
Results: There is significant increased in IL-23p19 gene and IL-23R in ulcerative colitis patients compared with control. Significant positive correlation was detected between increased expression of IL-23 p19 gene, IL-23R, high serum IL-23 and severity of the disease.
Conclusions: increased expression of IL-23 p19 is associated with ulcerative colitis and may indicate a role in its pathogenesis and that targeted therapy directed against IL-23 p19 may be effective in the treatment. Also increased expression of IL-23p19 gene and IL-23R with high serum IL-23 correlate positively with disease severity.
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