Novel treatment for Crohn's disease and related inflammatory gastrointestinal disease

DESCRIPTION provided by applicant Crohnandapos s disease is an inflammatory disorder of the gastrointestinal GI tract likely associated with a hyperactive immune response to commensal bacteria and mucosal damage The treatments for Crohnandapos s disease and inflammatory bowel diseases IBDs in general have the potential for serious side effects New approaches for controlling the progression of these diseases are needed A treatment that works at the mucosal surface to modulate mucosal inflammation and associated GI damage to prevent or reduce disease severity would change the quality of life for millions worldwide A recently developed polysaccharide derivative PAAG acts at the mucosal surfaces to facilitate a reduction of inflammation and enhanced barrier function by reducing GI damage Understanding how PAAG directly modulates key mediators in innate host defense and mucosal integrity such as toll like receptors TLRandapos s and similar pathways is essential in providing a well tolerated treatment alternative In vitro cell based assays will assess the influence of PAAG on TLR activation by pathogen associated molecular patterns PAMPandapos s and damage associated molecular patterns DAMPandapos s in human GI cells via colorometric signal transduction reporter gene based assays and pathways focused qPCR analysis The effectiveness of oral PAAG treatment in the adoptive transfer model of chronic colitis in vivo will be assessed and compared to confirm prior study success in acute GI inflammatory animal models Genes influencing the therapeutic response of PAAG in the mouse colon compared to vehicle control will be identified following hypotheses driven gene expression analysis guided by prior gene expression analysis in related models of GI inflammation Fecal and serum markers indicative of the level of GI damage and inflammation will be measured via ELISA and further validate the effectiveness of PAAG treatment Molecular methods will determine if microbiome diversity is influenced by treatment with PAAG The goal of this study is to optimize PAAG dosage and elucidate specific mechanisms that facilitate efficacious disease treatment Successful outcomes will guide further development of this product toward clinical trials of a safe and effective treatment for Crohnandapos s disease and related IBDandapos s PUBLIC HEALTH RELEVANCE Crohnandapos s disease is a specific form of debilitating inflammatory bowel disease IBD caused by a dysregulated intestinal immune response associated with a breakdown in the intestinal mucosal barrier and homeostasis An estimated million people in the US suffer from Crohnandapos s disease and a related disease of the colon ulcerative colitis Many currently available therapies have significant side effects and little chance of a cure The development of a novel treatment PAAG by Synedgen is expected to treat Crohnandapos s disease and related IBDandapos s by working directly at the mucosal surface to modulate dysregulated inflammation and enhance barrier function with the potential to improve the quality of life for millions of people worldwide