Karyorrhexis

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.[2] It is usually preceded by pyknosis and can occur as a result of either programmed cell death (apoptosis), cellular senescence, or necrosis.

Morphological characteristics of pyknosis and other forms of nuclear destruction
Apoptosis

In apoptosis, the cleavage of DNA is done by Ca2+ and Mg2+ -dependent endonucleases.

See also

References
  1. Zamzami N, Kroemer G (1999). "Apoptosis: Condensed matter in cell death". Nature. 401 (127): 127–8. doi:10.1038/43591. PMID 10490018.
  2. Advances in Mutagenesis Research. Springer Science & Business Media. 2012. p. 11. ISBN 9783642781933. Retrieved 11 November 2017.


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