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Published on: January 22, 2020
Biomimetic Supramolecular Assembly with IGF-1C Delivery Ameliorates Inflammatory Bowel Disease (IBD) by Restoring
Enze Fu1,2,3, Meng Qian2, Ningning He4
1School of Medicine, Nankai University, Tianjin, 300071, China.
None:
The management of dysfunctional intestinal epithelium by promoting mucosal healing and modulating the gut microbiota represents a novel therapeutic strategy for inflammatory bowel disease (IBD). As a convenient and well-tolerated method of drug delivery, intrarectal administration may represent a viable alternative to oral administration for the treatment of IBD. Here, a biomimetic supramolecular assembly of hyaluronic acid (HA) and β-cyclodextrin (HA-β-CD) for the delivery of the C domain peptide of insulin-like growth factor-1 (IGF-1C), which gradually releases IGF-1C, is developed. It is identified that the supramolecular assembly of HA-β-CD enhances the stability and prolongs the release of IGF-1C. Furthermore, this biomimetic supramolecular assembly potently inhibits the inflammatory response, thereby restoring intestinal barrier integrity. Following HA-β-CD-IGF-1C administration, 16S rDNA sequencing reveals a significant increase in the abundance of the probiotic Akkermansia, suggesting enhanced intestinal microbiome homeostasis. In conclusion, the findings demonstrate the promise of the HA-based mimicking peptide delivery platform as a therapeutic approach for IBD. This biomimetic supramolecular assembly effectively ameliorates intestinal barrier function and intestinal microbiome homeostasis, suggesting its potential for treating IBD.
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