Abstract
Defensins and cathelicidins are small cationic peptides produced by neutrophils and epithelial cells. They are highly expressed during infection. The role of constitutive and inducible antibacterial peptides has been extensively studied over the recent years; especially in the gastrointestinal (GI) tract, where the balance between the luminal bacteria and antibacterial peptides is crucial in the maintenance of a healthy GI tract. There are reports showing that the expressions of defensins and cathelicidins in the gut are dysregulated in various disease states. They could participate in the development of different disorders ranging from inflammation to cancer. Experimental findings showed that supplementation with animal cathelicidin promoted gastric ulcer healing in rats and suppressed tumorigenesis of gastric cancer in mice. Mouse cathelicidin could alleviate murine colitis by preserving mucus content and suppression of apoptosis. Other clinical applications for these antibacterial peptides are awaiting for further studies.
Keywords: Defensins, Cathelicidins, Gastritis, Gastric cancer, Inflammatory bowel diseases, neutrophils, peptides, tumorigenesis, metaplasia, magainins, ceropins, in situ, hybridization, hBD-2, hBD-3, hyperexpression, peptidoglycan
Current Pharmaceutical Design
Title: Antibacterial Peptides and Gastrointestinal Diseases
Volume: 17 Issue: 16
Author(s): Clover C. M. Wong, Lin Zhang, Shun X. Ren, Jing Shen, Ruby L. Y. Chan and Chi H. Cho
Affiliation:
Keywords: Defensins, Cathelicidins, Gastritis, Gastric cancer, Inflammatory bowel diseases, neutrophils, peptides, tumorigenesis, metaplasia, magainins, ceropins, in situ, hybridization, hBD-2, hBD-3, hyperexpression, peptidoglycan
Abstract: Defensins and cathelicidins are small cationic peptides produced by neutrophils and epithelial cells. They are highly expressed during infection. The role of constitutive and inducible antibacterial peptides has been extensively studied over the recent years; especially in the gastrointestinal (GI) tract, where the balance between the luminal bacteria and antibacterial peptides is crucial in the maintenance of a healthy GI tract. There are reports showing that the expressions of defensins and cathelicidins in the gut are dysregulated in various disease states. They could participate in the development of different disorders ranging from inflammation to cancer. Experimental findings showed that supplementation with animal cathelicidin promoted gastric ulcer healing in rats and suppressed tumorigenesis of gastric cancer in mice. Mouse cathelicidin could alleviate murine colitis by preserving mucus content and suppression of apoptosis. Other clinical applications for these antibacterial peptides are awaiting for further studies.
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Cite this article as:
C. M. Wong Clover, Zhang Lin, X. Ren Shun, Shen Jing, L. Y. Chan Ruby and H. Cho Chi, Antibacterial Peptides and Gastrointestinal Diseases, Current Pharmaceutical Design 2011; 17 (16) . https://dx.doi.org/10.2174/138161211796197025
DOI https://dx.doi.org/10.2174/138161211796197025 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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