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Published online 13 December 2001 | Nature | doi:10.1038/news011220-1
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Holes barred by protein purse-string
Suicidal cells are squeezed out of the way.
Dyingcells are squeezed out by their neighbours to keep the body's barriers intact, researchers announced at the meeting of the American Society for Cell Biology in Washington.
Lining the lung and gut, layers one cell thick divide our insides from the outside, controlling the movement of molecules and preventing the entry of bacteria.
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