A nuclease that mediates cell death induced by DNA damage and poly(ADP-ribose) polymerase-1
2016
Cells that experience stresses and accumulate excessive damage to DNA undergo cell death mediated by a nuclear enzyme known as PARP-1. During this process, apoptosis-inducing factor (AIF) translocates to the nucleus and activates one or more nucleases to cleave DNA. Wang et al. found that macrophage migration inhibitory factor (MIF) is an AIF-associated endonuclease that contributes to PARP-1-induced DNA fragmentation (see the Perspective by Jonas). In mouse neurons in culture, loss of MIF protected neurons from cell death caused by excessive stimulation. Targeting MIF could thus provide a therapeutic strategy against diseases in which PARP-1 activation is excessive.
Science , this issue p. [82][1]; see also p. [36][2]
[1]: http://www.sciencemag.org/content/354/6308/aad6872.full
[2]: /lookup/doi/10.1126/science.aai8756
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