Lymphedema (IMAGE) University of Helsinki Caption A model of the angiopoietin 2 growth factor secretion from lymphatic endothelial cells and the effect of ANGPT2 mutations on the development of lymphedema. Reduced secretion of the ANGPT2 mutants results in decreased receptor dimerization and activation, leading to swelling of the leg. Credit Alitalo Lab Usage Restrictions Alitalo Lab License Licensed content 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.