Three scientists have won the Nobel Prize for medicine or physiology after discovering how cells precisely transport material.
James Rothman and Randy Schekman, both from the US, and Thomas Sudhof, from Germany, shared the prize.
They found the way “vesicles” act like a fleet of ships transporting their goods to the exact location.
It is crucial for the way the brain communicates, the release of hormones and parts of the immune system.
The prize committee said the findings: “Had a major impact on our understanding of how cargo is delivered with timing and precision within and outside the cell.
“Without this wonderfully precise organisation, the cell would lapse into chaos.”
A defective vesicle transport system is implicated in diabetes and brain disorders.