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Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Sci+Rep 2016 ; 6 (ä): ä Nephropedia Template TP
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Small Molecule Inhibition of Ligand-Stimulated RAGE-DIAPH1 Signal Transduction #MMPMID26936329
Manigrasso MB; Pan J; Rai V; Zhang J; Reverdatto S; Quadri N; DeVita RJ; Ramasamy R; Shekhtman A; Schmidt AM
Sci Rep 2016[]; 6 (ä): ä PMID26936329show ga
The receptor for advanced glycation endproducts (RAGE) binds diverse ligands linked to chronic inflammation and disease. NMR spectroscopy and x-ray crystallization studies of the extracellular domains of RAGE indicate that RAGE ligands bind by distinct charge- and hydrophobicity-dependent mechanisms. The cytoplasmic tail (ct) of RAGE is essential for RAGE ligand-mediated signal transduction and consequent modulation of gene expression and cellular properties. RAGE signaling requires interaction of ctRAGE with the intracellular effector, mammalian diaphanous 1 or DIAPH1. We screened a library of 58,000 small molecules and identified 13 small molecule competitive inhibitors of ctRAGE interaction with DIAPH1. These compounds, which exhibit in vitro and in vivo inhibition of RAGE-dependent molecular processes, present attractive molecular scaffolds for the development of therapeutics against RAGE-mediated diseases, such as those linked to diabetic complications, Alzheimer?s disease, and chronic inflammation, and provide support for the feasibility of inhibition of protein-protein interaction (PPI).