Figure 2. The effect of intracellular and extracellular inhibitors on TMPRSS2 activity.

Fluorescence of TMPRSS2-overexpressing cells was measured every 15 minutes in the presence of the indicated concentrations of camostat mesylate (camostat) (A), secretory leukocyte protease inhibitor (SLPI) (B), or A1AT (C). The results in A-C are presented as the means ± SE from at least 3 independent experiments performed in duplicate and/or triplicate. TMPRSS2, transmembrane serine protease 2.