... Russia;3Department of Veterinary Pathology,University of Edinburgh, Easter Bush Veterinary Centre, Roslin, Edinburgh, UK; 4 Respiratory Medicine Unit, Department of Medicine, University of Cambridge School of ... Walker51Department of Veterinary Studies, University of Edinburgh, Easter Bush Veterinary Centre, Roslin, Edinburgh, UK;2Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ... 3-kinase by wortmannin or LY2 940 02inhibited completely duodenase-induced [3H]thymidine in- corporation. This would suggest that activation of P tdIns 3-kinase is the key regulatory step in...