Aleksi Sedo started his career as a Research Associate at the Institute of Chest Diseases in Prague, Czech Republic in 1987. He subsequently served as a Visiting Scientist and Professor at the Institute of Mutagenesis and Differentiation, which is funded by the Consiglio Nazionale de la Recherche (CNR) in Pisa, Italy. In 1996 he became an Assistant Professor of Biochemistry at the Institute of Medical Chemistry and Biochemistry, 1st Faculty of Medicine, Charles University, Prague and was appointed Associate Professor in 1997. From 1999 to 2002 Professor Sedo was a Senior Scientist at Procter and Gamble in Germany. Today he is a Professor of Medical Chemistry and Biochemistry, Head of the Institute of Biochemistry and Experimental Oncology, and Dean of the 1st Faculty of Medicine, Charles University in Prague. His research is oriented on the role of proteases in the cancer development, mostly in gliomagenesis.Rolf Mentlein studied chemistry and biology, undertook his PhD thesis in natural chemistry (1976) and subsequently performed his postdoctoral qualification ("Habilitation") in biochemistry at the Christian-Albrechts-University in Kiel, Germany. After post doc times and positions in Bergen (Haukeland Hospital, Norway), Osnabrück (University, Germany) and Cambridge (Babraham Institute, UK), he was appointed 1988 as a Professor for Biochemistry and Cell Biology at the University of Kiel. His main research subjects included lipases, proteases and bioactive peptides (peptide hormones, neuropeptides, growth factors and chemokines), in particular their regulation, receptors, signal transduction and functions in the brain and tumors. Among others, his research resulted in the development of new types of anti-diabetic drugs. He published about 200 original research and review articles, edited a book on neuropeptides, and is editor and reviewer for several scientific journals.