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New drug target discovered for inflammatory bowel disease: Cytokine (IL-23)

Date:
March 31, 2011
Source:
Federation of American Societies for Experimental Biology
Summary:
A new discovery raises hope that new treatments for illnesses like Crohn's disease and ulcerative colitis are on the horizon. That's because they've identified IL-23, a cytokine used by the immune system to ward off disease, as a major contributor to the inflammation that is the hallmark of these illnesses.

A new discovery published in the April 2001 issue of Journal of Leukocyte Biology raises hope that new treatments for illnesses like Crohn's disease and ulcerative colitis are on the horizon. That's because they've identified IL-23, a cytokine used by the immune system to ward off disease, as a major contributor to the inflammation that is the hallmark of these illnesses.

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With this information, it is now possible to develop new treatments that stop or reduce the damaging effects of IL-23, potentially bringing relief to millions of people with inflammatory bowel disease (IBD) and possibly other inflammatory illnesses as well.

"Our studies highlight the pathogenic role of IL-23 in the induction of mucosal injury in the gut," said Zhanju Liu, M.D., Ph.D., a researcher involved in the work from the Department of Gastroenterology at The Shanghai Tenth People's Hospital at Tongji University in Shanghai, China. "Moreover, our work also provides a novel approach in the management of IBD and some autoimmune diseases."

To make this discovery, Liu and colleagues analyzed IL-23 expression in intestinal mucosa using laboratory techniques that amplify and simultaneously quantify a specific DNA molecule, allowing for both detection and quantification of one or more specific sequences in a DNA sample. IL-23R expression was detected in a variety of cells from peripheral blood and intestinal mucosa of IBD patients, suggesting that IL-23 plays an important role in the induction of proinflammatory cytokine secretion as well as different types of immune cells including recently discovered Th17 helper T cells that are often important in inflammatory diseases.

"This research is important because it helps us better understand why people develop IBD, and defines one of the key pathways driving the excessive inflammation," said John Wherry, Ph.D., Deputy Editor of the Journal of Leukocyte Biology. "Even more important, however, is that this study moves us a step closer to new treatments for these illnesses by targeting IL-23 and related proteins."


Story Source:

The above story is based on materials provided by Federation of American Societies for Experimental Biology. Note: Materials may be edited for content and length.


Journal Reference:

  1. Z. Liu, P. K. Yadav, X. Xu, J. Su, C. Chen, M. Tang, H. Lin, J. Yu, J. Qian, P.-C. Yang, X. Wang. The increased expression of IL-23 in inflammatory bowel disease promotes intraepithelial and lamina propria lymphocyte inflammatory responses and cytotoxicity. Journal of Leukocyte Biology, 2011; DOI: 10.1189/jlb.0810456

Cite This Page:

Federation of American Societies for Experimental Biology. "New drug target discovered for inflammatory bowel disease: Cytokine (IL-23)." ScienceDaily. ScienceDaily, 31 March 2011. <www.sciencedaily.com/releases/2011/03/110331114844.htm>.
Federation of American Societies for Experimental Biology. (2011, March 31). New drug target discovered for inflammatory bowel disease: Cytokine (IL-23). ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2011/03/110331114844.htm
Federation of American Societies for Experimental Biology. "New drug target discovered for inflammatory bowel disease: Cytokine (IL-23)." ScienceDaily. www.sciencedaily.com/releases/2011/03/110331114844.htm (accessed November 27, 2014).

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