Stockholm:Optogenetics, a groundbreaking technique that uses light to control neural activity, has opened new avenues in treating neurological conditions like dementia, depression, and blindness. Three scientists were awarded the 2026 Nobel Prize in Physiology or Medicine for their pivotal contributions to this field. The laureates include Dr. Karl Deisseroth from Stanford University, USA; Dr. Peter Hegemann from Humboldt University of Berlin, Germany; and Dr. Georg Nagel from the University of Würzburg, Germany. They will equally share the prize of 12 million Swedish kronor.
According to Bangladesh Sangbad Sangstha, the development of optogenetics began with the discovery of Channelrhodopsin, a light-sensitive protein in green algae, by Professors Hegemann and Nagel. Dr. Deisseroth later engineered a method to incorporate this protein into specific cells, which allowed for the activation of neural pathways using light, marking a significant advancement in neuroscience.
This technology enables precise control of neural signals, facilitating the mapping of brain regions responsible for specific actions. Professor Dr. Abdel El Manira, from the Nobel Committee, noted that this research provides deep insights into behaviors related to parenting, aggression, anxiety, and physiological drives.
Research teams have used optogenetics to treat memory-related disorders and are exploring its potential to enhance learning and memory retention. In ophthalmology, clinical trials have shown promise in using optogenetics to treat degenerative eye diseases by reactivating damaged retinal cells with light-sensitive proteins.
Optogenetics also holds promise for Parkinson's and epilepsy research. Dr. Marco Tripodi highlighted its potential in identifying new therapeutic targets for these conditions. Furthermore, trials are underway to explore its efficacy in treating PTSD and addiction.
Despite significant success in animal models, applying optogenetics to humans presents challenges, particularly in non-invasive light delivery to the brain. Researchers are exploring wireless nanotechnology to overcome these obstacles, which could lead to broader clinical applications.
While the technology does not yet explain consciousness, it enhances understanding of brain networks. Professor El Manira expressed optimism that future advancements in optogenetics could lead to further Nobel Prizes.