Abstract
We investigated the effect of gabexate mesilate on the catalytic activity of phospholipase A2 in homogenized porcine pancreatic tissue. Gabexate mesilate is a potent inhibitor of serine proteases. There is no direct inhibition of phospholipase A2 catalytic activity in concentrations up to 6 mmol/l. Preincubation of homogenized pancreatic tissue with gabexate mesilate leads to a reduction of phospholipase A2 activity even in concentrations as low as 6 mumol/l. The activation of purified porcine prophospholipase A2 added to pancreatic tissue can be completely inhibited. Thus gabexate mesilate might influence the activation of phospholipase A2 administered in therapeutic concentrations in inflamed pancreatic tissue.
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