Tue Oct 08 05:11:36 UTC 2024: ## Nobel Prize in Medicine Awarded for Discovery of Tiny Molecules that Control Genes
**Stockholm, Sweden:** Scientists Victor Ambros and Gary Ruvkun have been awarded the Nobel Prize in Medicine for their groundbreaking discovery of microRNA – tiny molecules that play a critical role in regulating gene activity.
Ambros and Ruvkun’s work, which began in the late 1980s, revolutionized our understanding of how genes function within complex organisms. While scientists previously understood that specialized proteins called transcription factors could “switch” genes on and off, Ambros and Ruvkun revealed a completely new method of gene regulation through microRNA.
Their research, conducted using the tiny roundworm C. elegans, focused on two genes, lin-4 and lin-14, that controlled cell maturation. Their initial discovery was that a small RNA molecule produced by lin-4 inhibited the activity of lin-14, effectively shutting down its protein production.
This discovery, initially met with skepticism, was later confirmed when Ruvkun’s team found another microRNA, called let-7, that was present across many species, including humans. This discovery sparked widespread interest, leading to the identification of hundreds of microRNAs.
“The discovery of microRNA has fundamentally changed our understanding of how genes are regulated,” stated the Nobel committee. “This has opened up new avenues for research in a wide range of fields, including medicine and development biology.”
Understanding gene regulation is critical for tackling a wide range of diseases, including cancer, diabetes, and autoimmune conditions. MicroRNAs have become a crucial target for scientists and drug developers looking to create new therapies for these conditions.
The Nobel Prize in Medicine, awarded annually, recognizes outstanding contributions to the advancement of medical science. Ambros and Ruvkun’s discovery of microRNA highlights the ongoing quest to unravel the complex mysteries of life at the molecular level.
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