About Cathepsin Proteases

Cathepsins are a family of proteases that have been implicated in many diseases.

Virobay compounds are highly potent, orally active and drug-like; addressing common problems in the design of cathepsin inhibitors.

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Cathepsin Proteases in Other Disease Indications


Extracellular matrix remodeling plays an important role in COPD. As a secreted protease, cathepsin S degrades matrix proteins. Cathepsin S is expressed at high levels in lung tissue from smokers and in the BAL fluid of patients with COPD. Genetic (cathepsin S -/- mice) and/or pharmacological inhibition of cathepsin S is protective in mouse models of COPD. Cathepsin S is a novel and interesting target for potential treatment of COPD.