jm060158f_si_001.cif (14.66 kB)
Inhibition of Lysosomal Cysteine Proteases by a Series of Au(I) Complexes: A Detailed Mechanistic Investigation
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posted on 2006-06-29, 00:00 authored by Shamila S. Gunatilleke, Amy M. BarriosComplexes of gold(I) have long been used to treat rheumatoid arthritis although the precise biological targets
of gold are not well understood. One intriguing therapeutic target of Au(I) is the cathepsin family of lysosomal
cysteine proteases. Here, we present the inhibition of cathepsin B by a known Au(I)-based drug and a series
of derivatives. The complexes investigated were reversible, competitive inhibitors with IC50 values ranging
from 0.3 to 250 μM, depending on the substituents around the Au(I).