Masitinib (Colored in Red) Binds and Inhibits the Activity (image) Ecole Polytechnique Fédérale de Lausanne Share Print E-Mail Caption Masitinib (colored in red) binds and inhibits the activity of LYN (pink), FYN (blue) and BLK (yellow). Credit E. Oricchio/EPFL Usage Restrictions Media purposes. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.