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Humans and bacteria rely on the same aeons-old immune defence

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Bacteria fending off viruses rely on a form of cell death also used by mammals to fight infection.

Some bacteria have a molecular pathway that creates destructive holes in cell membranes in response to pathogens — a mechanism already known in mammals Credit: A. G.

JohnsonAt first glance, bacteria and humans seem to have little in common. But scientists have discovered that the cells in our bodies and some of Earth’s single-celled microorganisms use a similar strategy to fight off invaders

 

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