Abstract:
BACKGROUND:Interleukin-13 (IL-13) is a multifunctional cytokine whose net principle action is to diminish inflammatory responses. Dysregulation of IL-13 production has been proposed to contribute to intestinal inflammation in inflammatory bowel disease (IBD) patients. Previous studies implicate IL-13 in IBD pathogenesis; however, they fail to accurately reflect in vivo intestinal IL-13 production. We evaluate IL-13, IL-6, and IL-1beta elaborations from colonic organ cultures of pediatric IBD patients METHODS:Endoscopic lamina propria biopsies or surgical specimens from pediatric patients with IBD were organ cultured and supernatants evaluated by enzyme-linked immunosorbent assay for IL-1beta, IL-6, and IL-13. RESULTS:IL-13 concentrations were significantly reduced in ulcerative colitis (UC) patients when compared with normal controls (P = 0.002) and Crohn disease (CD) patients (P = 0.001). End-stage UC patients at colectomy had lower intestinal IL-13 production than all other UC patients (P = 0.002). No significant correlation was found between IL-13 concentration and histologic disease severity (P = 0.134). CONCLUSIONS:Diminished intestinal IL-13 production is present in UC patients and wanes further with clinical disease progression. These findings suggest that UC patients may be differentiated from CD patients by intestinal IL-13 quantitation, and UC patients may benefit from IL-13 enhancing therapies.
journal_name
Inflamm Bowel Disjournal_title
Inflammatory bowel diseasesauthors
Kadivar K,Ruchelli ED,Markowitz JE,Defelice ML,Strogatz ML,Kanzaria MM,Reddy KP,Baldassano RN,von Allmen D,Brown KAdoi
10.1097/00054725-200409000-00014keywords:
subject
Has Abstractpub_date
2004-09-01 00:00:00pages
593-8issue
5eissn
1078-0998issn
1536-4844pii
00054725-200409000-00014journal_volume
10pub_type
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