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Therapeutic targeting of cathepsin C: from pathophysiology to treatment

Item Type:Review
Title:Therapeutic targeting of cathepsin C: from pathophysiology to treatment
Creators Name:Korkmaz, B. and Caughey, G.H. and Chapple, I. and Gauthier, F. and Hirschfeld, J. and Jenne, D.E. and Kettritz, R. and Lalmanach, G. and Lamort, A.S. and Lauritzen, C. and Legowska, M. and Lesner, A. and Marchand-Adam, S. and McKaig, S.J. and Moss, C. and Pedersen, J. and Roberts, H. and Schreiber, A. and Seren, S. and Thakkar, N.S.
Abstract:Cathepsin C (CatC) is a highly conserved tetrameric lysosomal cysteine dipeptidyl aminopeptidase. The best characterized physiological function of CatC is the activation of pro-inflammatory granule-associated serine proteases. These proteases are synthesized as inactive zymogens containing an N-terminal pro-dipeptide, which maintains the zymogen in its inactive conformation and prevents premature activation, which is potentially toxic to the cell. The activation of serine protease zymogens occurs through cleavage of the N-terminal dipeptide by CatC during cell maturation in the bone marrow. In vivo data suggest that pharmacological inhibition of pro-inflammatory serine proteases would suppress or attenuate deleterious effects of inflammatory/auto-immune disorders mediated by these proteases. The pathological deficiency in CatC is associated with Papillon-Lefèvre syndrome. The patients however do not present marked immunodeficiency despite the absence of active serine proteases in immune defense cells. Hence, the transitory pharmacological blockade of CatC activity in the precursor cells of the bone marrow may represent an attractive therapeutic strategy to regulate activity of serine proteases in inflammatory and immunologic conditions. A variety of CatC inhibitors have been developed both by pharmaceutical companies and academic investigators, some of which are currently being employed and evaluated in preclinical/clinical trials.
Keywords:Cathepsin C, Serine Proteases, Papillon-Lefèvre Syndrome, Inflammatory/Autoimmune Diseases, Therapeutic Inhibitors, Pharmacological Targeting
Source:Pharmacology & Therapeutics
ISSN:0163-7258
Publisher:Elsevier / Pergamon Press (U.K.)
Volume:190
Page Range:202-236
Date:October 2018
Official Publication:https://doi.org/10.1016/j.pharmthera.2018.05.011
PubMed:View item in PubMed

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