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Whose research led to the discovery of the mammalian cell division checkpoint that prevents damaged cells from copying themselves?

BiologyCell Science

Quick Answer

Leland H. Hartwell’s. His yeast genetics work in the 1970s identified cell-cycle checkpoints that later shaped cancer biology.

The Full Story

Leland H. Hartwell’s pioneering genetics work in the 1970s uncovered genes that control the cell cycle, including checkpoints that ensure cells do not divide with damaged DNA. Although his experiments were done in yeast, the principles turned out to be fundamental for mammalian cells as well. This research helped explain how uncontrolled cell division can lead to cancer. Hartwell shared the 2001 Nobel Prize in Physiology or Medicine for discoveries of key regulators of the cell cycle.

Key Facts

1.Hartwell’s key work was in the 1970s
2.He studied the cell cycle using yeast
3.He won the 2001 Nobel Prize in Physiology or Medicine

YouTube Angle

Suggested video title for this topic:

"The hidden checkpoints that stop cells turning cancerous"

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