Download MendeleyCrown Ethers as Transthyretin Amyloidogenesis Inhibitors.
Yokoyama, T., Mizuguchi, M.(2019) J Med Chem 62: 2076-2082
- PubMed: 30688456
- DOI: https://doi.org/10.1021/acs.jmedchem.8b01700
- Primary Citation of Related Structures:
6IMX, 6IMY - PubMed Abstract:
Transthyretin (TTR) is a tetrameric protein found in human serum and associated with amyloid diseases. Because the tetramer dissociation and misfolding of the monomer precede amyloid fibril formation, development of a small molecule that binds to TTR and stabilizes the TTR tetramer is an efficient strategy for the treatment of amyloidosis. Here, we report our discovery of the anti-TTR amyloidogenesis activities of crown ethers. X-ray crystallographic analysis, binding assay, and chemical cross-linking assay showed that 4'-carboxybenzo-18C6 (4) stabilized the TTR tetramer by binding to the allosteric sites on the molecular surface of the TTR tetramer. In addition, 4 synergistically increased the stabilization activity of diflunisal, one of the most potent TTR amyloidogenesis inhibitors. These experimental evidences establish that 4 is a valuable template compound as an allosteric inhibitor of TTR amyloidogenesis.
Organizational Affiliation:
Faculty of Pharmaceutical Sciences , University of Toyama , 2630 Sugitani , Toyama 930-0914 , Japan.
