Caspase-independent mitotic death

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

The spindle checkpoint ensures proper chromosomal segregation by monitoring kinetochore-microtubule attachment. A failure of this checkpoint causes aneuploidy, which leads to tumorigenesis. The cell death that prevents the aneuploidy caused by failure of the spindle checkpoint is yet unknown. We have identified a novel type of mitotic cell death, which we term caspase-independent mitotic death (CIMD). When BUB1 but not MAD2 is depleted, CIMD is induced by conditions that activate the spindle checkpoint [e.g., cold shock or treatment with microtubule inhibitors or 17-AAG (17-allylaminogeldanamycin)]. CIMD depends on the apoptosis-inducing factor (AIF) and endonuclease G (Endo G), which are effectors of caspase-independent cell death. CIMD also depends on p73, a homologue of p53, but not on p53. When BUB1 is completely depleted, aneuploidy occurs instead of CIMD. Therefore, CIMD may be the programmed cell death that protects cells from aneuploidy by inducing the death of cells prone to substantial chromosome missegregation.

Original languageEnglish (US)
Title of host publicationEssentials of Apoptosis
Subtitle of host publicationA Guide for Basic and Clinical Research
PublisherHumana Press
Pages635-646
Number of pages12
ISBN (Electronic)9781603273817
ISBN (Print)9781603273800
DOIs
StatePublished - Jan 1 2009
Externally publishedYes

Fingerprint

Caspases
Aneuploidy
Cell death
Cell Death
tanespimycin
Microtubules
Effector Caspases
Apoptosis Inducing Factor
Kinetochores
Chromosomes
Shock
Carcinogenesis
Cells
Monitoring

Keywords

  • Aneuploidy
  • Bub1
  • Caspase-independent cell death (CIMD)
  • Chromosomal instability
  • Mad2
  • Mitosis
  • p73
  • Spindle checkpoint

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Kitagawa, K. (2009). Caspase-independent mitotic death. In Essentials of Apoptosis: A Guide for Basic and Clinical Research (pp. 635-646). Humana Press. https://doi.org/10.1007/978-1-60327-381-7_28

Caspase-independent mitotic death. / Kitagawa, Katsumi.

Essentials of Apoptosis: A Guide for Basic and Clinical Research. Humana Press, 2009. p. 635-646.

Research output: Chapter in Book/Report/Conference proceedingChapter

Kitagawa, K 2009, Caspase-independent mitotic death. in Essentials of Apoptosis: A Guide for Basic and Clinical Research. Humana Press, pp. 635-646. https://doi.org/10.1007/978-1-60327-381-7_28
Kitagawa K. Caspase-independent mitotic death. In Essentials of Apoptosis: A Guide for Basic and Clinical Research. Humana Press. 2009. p. 635-646 https://doi.org/10.1007/978-1-60327-381-7_28
Kitagawa, Katsumi. / Caspase-independent mitotic death. Essentials of Apoptosis: A Guide for Basic and Clinical Research. Humana Press, 2009. pp. 635-646
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