Rubén obtained his Ph.D. at the University of Barcelona (SP), where he investigated with Dr. Josep Planas the role of the glucose transporters GLUT2 and GLUT4 in homeostasis and development. Next, he did a postdoc in the group of Prof. Herman Spaink/Dr. Ron Dirks at Leiden University/ZF-Screens (NL). He developed high throughput pipelines for compound testing using zebrafish and studied how metabolism regulates immunity and cardiac development. His postdoctoral training was completed in the laboratory of Prof. Didier Stainier at the Max Planck Institute (DE). Using the zebrafish model, he identified the hitherto unappreciated phenomenon of fast angiogenic revascularization during heart regeneration. His studies revealed that, besides their role as a transport system, coronary vessels are involved in the regulation of cardiomyocyte proliferation and scarring. Dr. Marín Juez was recruited in 2020 as a group leader at the CHU Sainte-Justine Research Center and as an assistant professor in the Department of Pathology and Cellular Biology at the University of Montreal. Outside the lab, he enjoys climbing, hiking and traveling.