Abstract:
:Kinetic analysis of the mode of inhibition of cathepsin L by KGP94, a lead compound from a privileged library of functionalized benzophenone thiosemicarbazone derivatives, demonstrated that it is a time-dependent, reversible, and competitive inhibitor of the enzyme. These results are consistent with the formation of a transient covalent bond, and are supported by molecular modeling that places the thiocarbonyl of the inhibitor in proximity to the thiolate moiety of the enzyme active site Cys25. KGP94 significantly decreased the activity of cathepsin L toward human type I collagen, and impeded both migration and invasion of MDA-MB-231 human breast cancer cells. Growth retardation was achieved in vivo against both recently implanted and established tumours using a C3H mouse mammary carcinoma model.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Chavarria GE,Horsman MR,Arispe WM,Kumar GD,Chen SE,Strecker TE,Parker EN,Chaplin DJ,Pinney KG,Trawick MLdoi
10.1016/j.ejmech.2012.10.039subject
Has Abstractpub_date
2012-12-01 00:00:00pages
568-72eissn
0223-5234issn
1768-3254pii
S0223-5234(12)00643-5journal_volume
58pub_type
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