Abstract
The normal plasma protein serum amyloid P component (SAP) binds to fibrils in all types of amyloid deposits, and contributes to the pathogenesis of amyloidosis. In order to intervene in this process we have developed a drug, R-1-[6-[R-2-carboxy-pyrrolidin-1-yl]-6-oxo-hexanoyl]pyrrolidine-2-carboxylic acid, that is a competitive inhibitor of SAP binding to amyloid fibrils. This palindromic compound also crosslinks and dimerizes SAP molecules, leading to their very rapid clearance by the liver, and thus produces a marked depletion of circulating human SAP. This mechanism of drug action potently removes SAP from human amyloid deposits in the tissues and may provide a new therapeutic approach to both systemic amyloidosis and diseases associated with local amyloid, including Alzheimer's disease and type 2 diabetes.
Original language | English |
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Pages (from-to) | 254-259 |
Journal | Nature |
Volume | 417 |
Issue number | 6886 |
DOIs | |
Publication status | Published - 16 May 2002 |
Keywords
- Amyloidosis
- Animals
- Calcium
- Carboxylic Acids
- Cross-Linking Reagents
- Crystallography, X-Ray
- Dimerization
- Humans
- Inhibitory Concentration 50
- Liver
- Mice
- Models, Molecular
- Protein Binding
- Protein Structure, Quaternary
- Pyrrolidines
- Serum Amyloid P-Component