A Co(III) complex cleaving soluble oligomers of h-IAPP in the presence of polymeric aggregates of h-IAPP

Autor: Heeyeon Ju, Tae Yeon Lee, Woo Suk Chei, Jung Weon Lee, Junghun Suh, Mi-Sook Lee
Rok vydání: 2012
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry Letters. 22:5689-5693
ISSN: 0960-894X
DOI: 10.1016/j.bmcl.2012.06.089
Popis: Soluble oligomers of human islet amyloid polypeptide (h-IAPP) are believed to be the pathogenic species for type 2 diabetes mellitus. In search of the peptide-cleavage agent cleaving oligomers of h-IAPP with low affinity for polymeric aggregates of h-IAPP, a chemical library was constructed by using the Ugi condensation. From the library, a Co(III) complex was discovered to cleave soluble oligomers of h-IAPP in the presence of polymeric aggregates of h-IAPP without being captured by the aggregates considerably. The peptide-cleavage agent inhibited apoptosis of INS-1 cell by h-IAPP even in the presence of preformed polymeric aggregates of h-IAPP. This suggests that target-selective peptide-cleavage agents may be applied clinically not only to diabetes but also to various other amyloid diseases.
Databáze: OpenAIRE