Journal
FUTURE MEDICINAL CHEMISTRY
Volume 8, Issue 18, Pages 2231-2243Publisher
FUTURE SCI LTD
DOI: 10.4155/fmc-2016-0156
Keywords
aminopeptidase N; colitis; molecular modeling; neutral endopeptidase; opiorphin; peptide synthesis; sialorphin; spinorphin
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Funding
- National Science Centre [UMO-2013/11/B/NZ7/01301]
- Medical University of Lodz [503/1-156-04/503-01, 502-03/1-156-02/502-14-140]
- Polpharma Scientific Foundation
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Aim: The pharmacotherapy of inflammatory bowel disease is difficult and currently available treatments bring mostly poor and unsatisfactory results. Results: The purpose of this work was the synthesis of opiorphin, sialorphin, spinorphin and a series of their analogs and the in vitro characterization of their effect on degradation of enkephalin by neutral endopeptidase and aminopeptidase N. Consequently, we investigated in vivo the anti-inflammatory effect of the most active inhibitors selected in the in vitro studies (Pal-KKQRFSR & Pal-KKQHNPR). Putative inhibitor - enzyme (neutral endopeptidase or aminopeptidase N) complexes are also presented and their binding interfaces are identified. Conclusion: Our results suggest that Pal-KKQHNPR has the potential to become a valuable template for anti-inflammatory therapeutics for the treatment of GI tract inflammation.
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