Karl Deisseroth, Peter Hegemann, and Georg Nagel have been awarded the 2026 Nobel Prize in Physiology or Medicine for their groundbreaking work on light-gated ion channels and optogenetics, the Nobel Assembly at Karolinska Institutet announced in Stockholm. Optogenetics allows for the precise control of individual nerve cell activity within a living brain, unlocking new insights into the brain’s functions, according to Thomas Perlmann, the Nobel Assembly’s secretary-general.
The trio, comprising Deisseroth from the U.S., Hegemann and Nagel from Germany, expressed their joy and gratitude at receiving the prestigious award together. The Nobel Prize, which amounts to 12 million Swedish crowns, will be divided among the three scientists. Deisseroth is affiliated with Stanford University, Hegemann with Humboldt University in Berlin, and Nagel with the University of Würzburg in Germany.
The significance of their work extends beyond the current achievements as it opens up new possibilities in neuroscience. Researchers are utilizing optogenetics in clinical trials to restore vision in individuals suffering from retinitis pigmentosa by introducing light-sensitive proteins into the retina. There is also optimism that optogenetics could enhance cochlear implants, providing more targeted stimulation to the auditory nerve compared to existing methods.
The groundbreaking research traces back to the early 1990s when Hegemann explored the light responsiveness of the alga Chlamydomonas. This led to the discovery of channelrhodopsin-2, an ion channel activated by light. Deisseroth’s subsequent work demonstrated the applicability of optogenetics in stimulating nerve cells, leading to the technique’s formal recognition in 2006.
The Nobel Prize, established by Alfred Nobel, aims to recognize individuals who have made significant contributions benefiting humanity. Nobel, known for inventing dynamite, envisioned the prizes as a means to honor achievements aligned with his values. The laureates will receive their awards on December 10, commemorating Nobel’s legacy.