... Veterinary Pathology,University of Edinburgh, Easter Bush Veterinary Centre, Roslin, Edinburgh, UK;4Respiratory Medicine Unit, Department of Medicine, University of Cambridge School of Clinical ... being inhibited completely byPD98059 [31]. Moreover, in pulmonary artery fibroblasts,inhibition of PtdIns 3-kinase by wortmannin or LY294002inhibited completely duodenase-induced [3H]thymidine ... with soybean t rypsininhibitor ( 3 mg ÆmL)1, 1 5 min), an effective inhibitor of t hisenzyme [1] was found to inhibit completely the ability of thisenzyme to induce [3H]thymidine incorporation...