Mon Oct 07 22:52:15 UTC 2024: ## Nobel Prize in Physiology or Medicine Awarded for Discovery of MicroRNAs
**Stockholm, Sweden** – Victor Ambros and Gary Ruvkun, pioneers in the field of developmental biology and genetics, have been awarded the 2024 Nobel Prize in Physiology or Medicine for their groundbreaking discovery of microRNAs and their role in gene regulation.
The Nobel Assembly at the Karolinska Institute announced the award today, highlighting the fundamental importance of microRNAs in understanding embryological development, cell function, and various diseases including cancer.
Ambros and Ruvkun’s journey began in the late 1980s while they were both postdoctoral researchers in the lab of renowned worm biologist Robert Horvitz at MIT. Their research focused on the developmental stages of the nematode worm _Caenorhabditis elegans_, specifically examining the roles of genes like lin-4 and lin-14.
Their work led to the unexpected discovery of lin-4, a gene that did not encode a protein but instead produced a short 22-nucleotide RNA. This discovery, coupled with further research revealing the ability of lin-4 to regulate protein production from another gene (lin-14), marked a turning point in understanding gene regulation.
In 1993, Ambros and Ruvkun published their findings in the journal _Cell_, demonstrating how the small lin-4 transcript interacted with the 3′ untranslated region of the lin-14 mRNA, effectively controlling gene expression. This discovery unveiled a new principle of post-transcriptional gene regulation, mediated by a previously unknown type of RNA.
Their findings initially met with skepticism within the scientific community, but further research and subsequent discoveries of other small RNAs like let-7 solidified their significance. The universality of these tiny RNAs, present not only in worms but also in humans and other animals, opened up a new field of study.
Since then, the scientific community has identified thousands of microRNA genes in the human genome, highlighting their role in cell development, tissue formation, and various physiological processes. Mutations in these microRNA genes have been linked to various diseases, including hearing loss, eye and skeletal disorders, neurodegenerative diseases, and cancer.
Ambros and Ruvkun’s pioneering research on microRNAs has revolutionized our understanding of gene regulation and its influence on human health. Their work continues to inspire new research and therapeutic approaches for a wide range of diseases.
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