(191ck) The Discovery of Enzymatically Depolymerized Heparin Derivatives for the Treatment of Ulcerative Colitis
AIChE Annual Meeting
2017
2017 Annual Meeting
Food, Pharmaceutical & Bioengineering Division
Poster Session: Bioengineering
Monday, October 30, 2017 - 3:15pm to 4:45pm
The anti-inflammatory effects of the heparin derivatives were systematically screened using the animal model of DSS induced colitis in mice. The results indicated that an enzymatically depolymerized low molecular weight heparin derivative without anticoagulant activity had better colon-protective effects through the inhibition of cytokine secretion and macrophage recruitment. The degree of desulfation and de-anticoagulation of heparin is extremely important for the treatment of colitis in mice. Furthermore, enzymatically depolymerization of heparin with specific type of heparinase show benefits in ameliorating colitis in mice. The selected heparin derivatives also attenuated intestinal epithelial permeability according to the studies on a normal human colon mucosal epithelial cell line. Several molecular pathways involved in the ulcerative colitis with the treatment of the potent heparin derivative were depicted, and the structure factors of heparin influencing anti-colitis activity were thoroughly analyzed.