News Genetics The discovery of microRNA wins the 2024 physiology Nobel Prize MicroRNA plays a key role in gene regulation Victor Ambros (left) and Gary Ruvkun (right) won the 2024 Nobel Prize in physiology or medicine for the discovery of microRNA and its role in gene regulation. Niklas Elmehed, © Nobel Prize Outreach Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Tina Hesman Saey and Sophie Hartley October 7, 2024 at 6:18 am Updated October 7, 2024 at 12:31 pm An unexpected discovery about what made a tiny worm refuse to grow up has now led to the 2024 Nobel Prize in physiology or medicine.