Karyorrhexis
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Nuclear_changes.jpg/300px-Nuclear_changes.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/8/86/Apoptosis.png)
Karyorrhexis (from Greek κάρυον karyon, "kernel, seed or nucleus", and ῥῆξις rhexis, "bursting") is the destructive fragmentation of the nucleus of a dying cell[1] whereby its chromatin is distributed irregularly throughout the cytoplasm. It is usually preceded by pyknosis and can occur as a result of either programmed cell death (apoptosis), senescence, or necrosis.
In apoptosis, the cleavage of DNA is done by Ca2+ and Mg2+ -dependent endonucleases.
See also
References
- ^ Zamzami N, Kroemer G (1999). "Apoptosis: Condensed matter in cell death". Nature. 401 (127): 127–8. doi:10.1038/43591. PMID 10490018.