Salvador Aznar: "Most tumors originate in stem cells"

Journalist Luis Quevedo interviews Salvador Aznar, ICREA researcher and group leader of Stem Cells and Cancer Lab at IRB Barcelona, for his science podcast "El Método". The researcher talks about epigenetics and cancer. He explains the importance of chromatin (DNA folded in the nucleus) in this process and how his lab is studying a particular protein involved in the structure of chromatin.