Imaging studies reveal order in programmed cell death

(PhysOrg.com) -- Every day, about 10 billion cells in a human body commit suicide. Cells infected by virus, that are transformed or otherwise dysfunctional altruistically sacrifice themselves for the greater good. Now, new imaging experiments have revealed a previously unseen order to this process, showing closely related cells dying in synchrony as a wave of destruction sweeps across their mitochondria, snuffing out the main source of energy that keeps cells alive.

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