OBJECTIVE: Interleukin-17(IL-17)-producing T helper(Th)17 cells are considered as a new subset of cells critical to the development of inflammatory bowel disease (IBD). We aimed to investigate the distribution of Th17 cells, the expressions of Th17-related cytokines (IL-17, IL-21 and IL-22) and their association with disease activity in IBD patients. METHODS: We collected intestinal tissue biopsies from 40 patients with active ulcerative colitis (UC), 20 patients with active Crohn's disease (CD) and 20 healthy controls. The distribution of Th17 cells and expressions of Th17-related cytokines in colonic tissues were evaluated by a standard immunohistochemical procedure. Serum IL-17, IL-21 and IL-22 levels were determined by ELISA. Pearson's and Spearman's correlation analyses were performed to analyze the correlation between the number of Th17 cells, the expressions of Th17-related cytokines and disease activity index, endoscopic and histological grading, and CRP and PLT levels, respectively. RESULTS: Compared with healthy controls, the number of Th17 cells and the expressions of IL-17, IL-21 and IL-22 were significantly increased in active IBD patients (P < 0.05). In addition, Pearson's and Spearman's correlation analyses showed that the number of Th17 cells and the expressions of Th17-related cytokines were correlated with disease activity index, endoscopic and histological grading, CRP and PLT levels (P < 0.05). CONCLUSIONS: Th17 cells and Th17-related cytokines (IL-17, IL-21 and IL-22) were increased in the intestinal mucosa in active IBD patients and may play an important role in disease activity and mucosal damage.
OBJECTIVE: Interleukin-17(IL-17)-producing T helper(Th)17 cells are considered as a new subset of cells critical to the development of inflammatory bowel disease (IBD). We aimed to investigate the distribution of Th17 cells, the expressions of Th17-related cytokines (IL-17, IL-21 and IL-22) and their association with disease activity in IBDpatients. METHODS: We collected intestinal tissue biopsies from 40 patients with active ulcerative colitis (UC), 20 patients with active Crohn's disease (CD) and 20 healthy controls. The distribution of Th17 cells and expressions of Th17-related cytokines in colonic tissues were evaluated by a standard immunohistochemical procedure. Serum IL-17, IL-21 and IL-22 levels were determined by ELISA. Pearson's and Spearman's correlation analyses were performed to analyze the correlation between the number of Th17 cells, the expressions of Th17-related cytokines and disease activity index, endoscopic and histological grading, and CRP and PLT levels, respectively. RESULTS: Compared with healthy controls, the number of Th17 cells and the expressions of IL-17, IL-21 and IL-22 were significantly increased in active IBDpatients (P < 0.05). In addition, Pearson's and Spearman's correlation analyses showed that the number of Th17 cells and the expressions of Th17-related cytokines were correlated with disease activity index, endoscopic and histological grading, CRP and PLT levels (P < 0.05). CONCLUSIONS: Th17 cells and Th17-related cytokines (IL-17, IL-21 and IL-22) were increased in the intestinal mucosa in active IBDpatients and may play an important role in disease activity and mucosal damage.
Authors: Charles N Bernstein; Michael Fried; J H Krabshuis; Henry Cohen; R Eliakim; Suleiman Fedail; Richard Gearry; K L Goh; Saheed Hamid; Aamir Ghafor Khan; A W LeMair; Qin Ouyang; J F Rey; Ajit Sood; Flavio Steinwurz; Ole O Thomsen; Alan Thomson; Gillian Watermeyer Journal: Inflamm Bowel Dis Date: 2010-01 Impact factor: 5.325
Authors: Veera Hölttä; Paula Klemetti; Harri M Salo; Antti Koivusalo; Mikko Pakarinen; Mia Westerholm-Ormio; Kaija-Leena Kolho; Outi Vaarala Journal: J Pediatr Gastroenterol Nutr Date: 2013-09 Impact factor: 2.839
Authors: Maria Serena Longhi; Marta Vuerich; Alireza Kalbasi; Jessica E Kenison; Ada Yeste; Eva Csizmadia; Byron Vaughn; Linda Feldbrugge; Shuji Mitsuhashi; Barbara Wegiel; Leo Otterbein; Alan Moss; Francisco J Quintana; Simon C Robson Journal: JCI Insight Date: 2017-05-04