Method of monitoring the effect of Cathepsin S inhibitors

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...

Reexamination Certificate

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C435S002000, C435S003000, C435S004000, C435S007200, C435S007210, C435S007230, C435S007240, C435S040500, C435S287200, C435S326000, C435S335000, C435S372100, C435S372300, C435S962000, C436S501000, C436S506000, C436S507000, C436S546000, C436S063000, C436S064000, C436S172000, C436S175000, C436S177000, C436S811000, C436S813000, C436S825000, C356S300000, C356S326000, C356S328000, C382S133000, C382S141000, C382S260000

Reexamination Certificate

active

07026132

ABSTRACT:
The present invention relates to a method for monitoring the effect of in vivo administration of Cathepsin S inhibitors by measuring accumulation of an intermediate degradation product of invariant chain (Ii), in particular the p10 Ii fragment, in blood of dosed subjects.

REFERENCES:
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patent: 5976858 (1999-11-01), Palmer et al.
patent: 6245904 (2001-06-01), Melms et al.
patent: 6495333 (2002-12-01), Willmann et al.
patent: WO 97/40066 (1997-10-01), None
patent: WO 99/58153 (1999-11-01), None
Nakagawa et al., “Impaired Invariant Chain Degradation and Antigen Presentation and Diminished Collagen-Induced Arthritis in Cathepsin S Null Mice”,Immunity(1999) 10:207-217.
Palmer et al., “Vinyl Sulfones as Mechanism-Based Cysteine Protease Inhibitors”,J. Med. Chem. (1995) 38:3193.
Riese et al., “Essential Role for Cathepsin S in MHC Class II-Associated Invariant Chain Processing and Peptide Loading”,Immunity(1996) 4(4):357-366.
Riese et al., “Cathepsin S Activity Regulates Antigen Presentation and Immunity”,J. Clin. Invest. (1998) 101(11):2351-2363.
Shi et al., “Cathepsin S Required for Normal MHC Class II Peptide Loading and Germinal Center Development”,Immunity(1999) 10:197-206.
Shi et al., “Role For Cathepsin F In Invariant Chain Processing And Major Histocompatibility Complex Class II Peptide Loading By Macrophages”,J. Exp. Med., vol. 191(7), pp. 1177-1185 (2000).
Chapman, “Endosomal Proteolysis And MHC Class II Function”,Curr. Op. Immunol., vol. 10, pp. 93-102 (1998).
Thurmond et al., “Identification Of A Potent And Selective Noncovalent Cathepsin S Inhibitor”,J. Pharmacol. Exp. Ther., vol. 308, pp. 268-276 (2004).
Villadangos et al., “Degradation Of Mouse Invariant Chain: Roles Of Cathepsins S And D And The Influence Of Major Histocompatibility Complex Polymorphism”,J. Exp. Med., vol. 186, No. 4, pp. 549-560 (1997).

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