Amphiphilic oligoamide α-helix peptidomimetics inhibit islet amyloid polypeptide aggregation

Oleg V. Kulikov, Sunil Kumar, Mazin Magzoub, Peter C. Knipe, Ishu Saraogi, Sam Thompson, Andrew D. Miranker, Andrew D. Hamilton

Research output: Contribution to journalArticle

Abstract

Abstract The abnormal deposition of proteins as insoluble plaques is associated with many diseases, including Alzheimer's, Parkinson's and type II diabetes. There is an unmet need for synthetic agents that are able to mediate particular steps in the pathway between soluble proteins in their native unfolded state and their insoluble β-sheet rich aggregates. We have previously reported classes of α-helix mimetic that agonize or antagonize islet amyloid polypeptide aggregation, depending on the presence of a lipid bilayer. Here we investigate a novel mixed benzamide and pyridylamide scaffold that gives improved activity and explores the role of side-chain polarity, backbone rigidity and curvature in inhibiting lipid-catalyzed fibrillization.

Original languageEnglish (US)
Article number46004
Pages (from-to)3670-3673
Number of pages4
JournalTetrahedron Letters
Volume56
Issue number23
DOIs
StatePublished - May 25 2015

Keywords

  • Amyloid β-peptides
  • Diabetes
  • Helical structures
  • Proteomimetics
  • α-Helix mimetics

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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