2022 Nobel Prize in Medicine

The 2022 Nobel Prize in Physiology or Medicine was awarded to Svante Pääbo for his discoveries concerning the genomes of extinct hominins and human evolution. Click HERE to read more about this award.

Key Details from the Nobel Committee

• Discovery: Pääbo pioneered methods to sequence ancient DNA, overcoming immense technical challenges such as contamination and degradation. He successfully reconstructed the genome of the Neanderthal, providing the first genetic blueprint of an extinct hominin. His team also discovered the previously unknown Denisovans, another extinct relative of humans, through DNA analysis of a finger bone fragment. Comparative studies revealed that gene flow occurred between extinct hominins and modern humans, meaning that Homo sapiens interbred with Neanderthals and Denisovans.

• Impact:

  -Pääbo’s discoveries reshaped the narrative of human history, showing that modern humans did not evolve in isolation but interacted genetically with other hominins.

  -His work opened new scientific frontiers, enabling researchers to explore how ancient genetic variants affect modern physiology and health.

  -The Nobel Committee emphasized that his achievements created an entirely new discipline, bridging molecular biology and human evolution.

Why It Matters

• Human evolution: His work transformed our understanding of how modern humans relate to extinct relatives.

• Genetic legacy: Up to 2% of the DNA in present-day humans comes from Neanderthals.

• Medical relevance: Some inherited Neanderthal genes influence immune responses and susceptibility to diseases, including COVID-19 severity.

• Scientific impact: Ancient DNA research has become a cornerstone of evolutionary biology and anthropology.