Karl Deisseroth wins Nobel Prize

Karl Deisseroth and the Development of Optogenetics

Karl Deisseroth, a US psychiatrist and neurologist, has been awarded the Nobel Prize in Physiology or Medicine, alongside his German colleagues Peter Hegemann and Georg Nagel, for their work in the field of optogenetics. Their research has helped scientists learn more about the inner workings of the brain and has opened new avenues for investigating the mechanisms underlying brain function. The Nobel Committee praised the trio for laying the foundation of a new era in neuroscience by revealing how to switch on and off neural circuits behind specific memories, feelings, and behaviors relevant for neurological and psychiatric disorders, as stated by Per Svenningsson, chair of the Nobel Committee for Physiology or Medicine.

How Optogenetics Works

Optogenetics is a technique that uses light-sensitive proteins to influence the activity of nerve cells. The technology has allowed scientists to identify and study neural circuits with a level of precision that was previously difficult to achieve. The process involves inserting a special protein into the brain, which can be controlled using light. By shining light on specific cells, researchers can activate or deactivate them, allowing for a deeper understanding of how the brain works. The discovery of channelrhodopsin, a protein found in algae, was a key breakthrough in the development of optogenetics. When blue light hits the protein, it opens a channel that allows charged particles to pass through and produces an electrical signal, as explained by Deisseroth in a 2010 article published in Scientific American.

Applications of Optogenetics

The applications of optogenetics are vast and have the potential to revolutionize the field of neuroscience. Researchers are using the technique to study the neural circuits that underlie various behaviors and diseases, including neurological and psychiatric disorders. Optogenetics may also eventually contribute to clinical applications, including restoring vision in people with certain types of visual impairment. In ongoing clinical trials, scientists have been working to restore vision in people who have become blind due to retinitis pigmentosa, a disease that destroys the eye's rods and cones. By inserting a special protein in the damaged region of the eye, the patient regained some vision when wearing special glasses emitting light, as reported by the Nobel Committee.

Detail	Information
Prize Money	£900,000 (12 million Swedish kronor)
Year of Discovery	2005 (channelrhodopsin discovery)
Year of Optogenetics Development	2005 (Deisseroth's introduction of channelrhodopsin into rat nerve cells)

Reaction to the Nobel Prize

The winners said it was "absolutely wonderful" to get the award, and that it was an honor to share the accolade with friends. Deisseroth himself explained that he was "quite surprised" when he received the news of his award, and that he had a hard time speaking for about 30 seconds after hearing the news. "I couldn't be happier because the trio that the committee picked spans the progression from the early algal explorations all the way to advanced neuroscience experiments, and so this prize really captures the full journey of discovery," said Deisseroth in a press release from Stanford University.

Frequently Asked Questions

What is optogenetics?

Optogenetics is a technique that uses light-sensitive proteins to influence the activity of nerve cells, allowing scientists to identify and study neural circuits with a level of precision that was previously difficult to achieve, as explained by the Nobel Committee.

What are the potential applications of optogenetics?

Optogenetics has the potential to reveal neurological diseases and behaviors, and may eventually contribute to clinical applications, including restoring vision in people with certain types of visual impairment, as stated by the Nobel Committee.

Who are the winners of the Nobel Prize in Physiology or Medicine?

The winners of the Nobel Prize in Physiology or Medicine are Karl Deisseroth, Peter Hegemann, and Georg Nagel, who were awarded the prize for their work in the field of optogenetics, as announced by the Nobel Assembly at Karolinska Institutet.

The Nobel Prize in Physiology or Medicine is a significant recognition of the importance of optogenetics in advancing our understanding of the brain and its functions. As researchers continue to explore the potential of optogenetics, we can expect to see new breakthroughs and discoveries that will shed light on the complexities of the human brain. With the prize money of £900,000, the winners will be able to further their research and continue to make significant contributions to the field of neuroscience. The next step will be to see how optogenetics can be used to develop new treatments for neurological and psychiatric disorders, and how it can be used to improve our understanding of the brain and its functions.