Nobel Prize in Medicine Awarded for Optogenetics Research
Three scientists recognized for work on light-controlled nerve cell activity, opening new avenues in neuroscience.
The Nobel Prize in Physiology or Medicine was awarded Monday to scientists Karl Deisseroth, Peter Hegemann, and Georg Nagel for their pioneering research into optogenetics, a method that uses light to control the activity of individual nerve cells and circuits in the brain. The Nobel Assembly stated that their work has opened a new era in neuroscience.
Deisseroth, based at Stanford University in California, Hegemann at Humboldt University in Berlin, and Nagel at the University of Würzburg, have focused on light-gated ion channels. Their research allows scientists to precisely switch nerve cells on and off, facilitating a deeper understanding of brain function, behavior, and disease pathways.
The development began when Hegemann studied how single-celled algae react to light. He and Nagel identified a specific protein that, when exposed to blue light, generates an electrical impulse. Introducing this protein into other cells renders them light-sensitive.
Karl Deisseroth further developed this discovery by working with the gene responsible for this protein. This allowed him to create a light-controlled switch for nerve cells within the brains of living mice, a critical step in applying optogenetics to complex biological systems.
The Nobel Assembly highlighted on X that the optogenetic method is now a globally used tool for exploring the brain's complexities. The prize announcement took place at the Karolinska Institute in Stockholm, marking the beginning of Nobel Prize week.
The prize money this year amounts to 12 million Swedish kronor, approximately $1.2 million. The Nobel Prize in Physics will be announced Tuesday, followed by Chemistry on Wednesday, Literature on Thursday, the Peace Prize on Friday, and the Nobel Memorial Prize in Economic Sciences on October 12.