PWE-077 Altered Epithelial Tight Junction Expression and Elevated Il 6 Levels in Pouchitis

Elevated Serum Levels of IL-6 and TNF-α in Patients with Irritable Bowel Syndrome

Introduction: Irritable bowel syndrome (IBS) is accompanied by abdominal pain and intestinal discomforts. A line of evidence shows that the immune system plays important roles in the pathogenesis of the disease. Two main cytokines directing the immune system are IL-6 and TNF-α which may play a role in the immunopathogenesis of this disease. The present study aimed at investigating the serum lev...

Enterotoxigenic Escherichia coli infection induces tight junction proteins expression in mice

Enterotoxigenic Escherichia coli (ETEC) causes diarrhea in travelers, young children and piglets, but the precise pathogenesis of ETEC induced diarrhea is not fully known. Recent investigations have shown that tight junction (TJ) proteins and aquaporin 3 (AQP 3) are contributing factors in bacterial diarrhea. In this study, using immunoblotting and immunohistochemistry analyses, we found that E...

Detection of IL-4, IL-6 and IL-12 Serum Levels in Generalized Aggressive Periodontitis

Background: Periodontitis is a multifactorial chronic inflammatory disease characterized by destruction of tooth-supporting tissues. Environmental and genetic factors as well as the immune system participate in this process. Recent studies have attempted to elucidate the role of cytokine networks involved in periodontal diseases. Objective: To assess and compare the levels of IL-4, IL-6 and IL-...

PLEKHA7 modulates epithelial tight junction barrier function

PLEKHA7 is a recently identified protein of the epithelial zonula adhaerens (ZA), and is part of a protein complex that stabilizes the ZA, by linking it to microtubules. Since the ZA is important in the assembly and disassembly of tight junctions (TJ), we asked whether PLEKHA7 is involved in modulating epithelial TJ barrier function. We generated clonal MDCK cell lines in which one of four diff...

Mechanism of IL-1 -Induced Increase in Intestinal Epithelial Tight Junction Permeability