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Programmed cell death is a physiological process that eliminates unwanted cells. The bcl-2 gene regulates programmed cell death in mammalian cells, but the way it functions is not known. Expression of the human bcl-2 gene in the nematode Caenorhabditis elegans reduced the number of programmed cell deaths, suggesting that the mechanism of programmed cell death controlled by bcl-2 in humans is the same as that in nematodes.
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Vaux et al. (1992) studied this question.
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