Lats2 phosphorylates p21/CDKN1A after UV irradiation and regulates apoptosis

Hirokazu Suzuki, Norikazu Yabuta, Nobuhiro Okada, Kosuke Torigata, Yael Aylon, Moshe Oren, Hiroshi Nojima

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

LATS2 (Large tumor suppressor 2), a member of the conserved AGC Ser/Thr (S/T) kinase family, is a human tumor suppressor gene. Here, we show that in response to ultraviolet radiation, Lats2 is phosphorylated by Chk1 at Ser835 (S835), which is located in the kinase domain of Lats2. This phosphorylation enhances Lats2 kinase activity. Subsequently, Lats2 phosphorylates p21 at S146. p21 (CDKN1A) is a cyclin-dependent kinase (CDK) inhibitor, which not only regulates the cell cycle by inhibition of CDK, but also inhibits apoptosis by binding to procaspase-3 in the cytoplasm. Phosphorylation by Lats2 induces degradation of p21 and promotes apoptosis. Accordingly, Lats2 overexpression induces p21 degradation, activation of caspase-3 and caspase-9, and apoptosis. These findings describe a novel Lats2-dependent mechanism for induction of cell death in response to severe DNA damage.

Original languageEnglish
Pages (from-to)4358-4368
Number of pages11
JournalJournal of cell science
Volume126
Issue number19
DOIs
Publication statusPublished - Oct 18 2013
Externally publishedYes

Fingerprint

Phosphotransferases
Cyclin-Dependent Kinases
Apoptosis
Caspase 3
Phosphorylation
Caspase 9
Tumor Suppressor Genes
DNA Damage
Cell Cycle
Cytoplasm
Cell Death
Radiation
Neoplasms

Keywords

  • Apoptosis
  • Cdkn1A
  • Lats2
  • P21
  • Phosphorylation
  • UV

ASJC Scopus subject areas

  • Cell Biology

Cite this

Suzuki, H., Yabuta, N., Okada, N., Torigata, K., Aylon, Y., Oren, M., & Nojima, H. (2013). Lats2 phosphorylates p21/CDKN1A after UV irradiation and regulates apoptosis. Journal of cell science, 126(19), 4358-4368. https://doi.org/10.1242/jcs.125815

Lats2 phosphorylates p21/CDKN1A after UV irradiation and regulates apoptosis. / Suzuki, Hirokazu; Yabuta, Norikazu; Okada, Nobuhiro; Torigata, Kosuke; Aylon, Yael; Oren, Moshe; Nojima, Hiroshi.

In: Journal of cell science, Vol. 126, No. 19, 18.10.2013, p. 4358-4368.

Research output: Contribution to journalArticle

Suzuki, H, Yabuta, N, Okada, N, Torigata, K, Aylon, Y, Oren, M & Nojima, H 2013, 'Lats2 phosphorylates p21/CDKN1A after UV irradiation and regulates apoptosis', Journal of cell science, vol. 126, no. 19, pp. 4358-4368. https://doi.org/10.1242/jcs.125815
Suzuki, Hirokazu ; Yabuta, Norikazu ; Okada, Nobuhiro ; Torigata, Kosuke ; Aylon, Yael ; Oren, Moshe ; Nojima, Hiroshi. / Lats2 phosphorylates p21/CDKN1A after UV irradiation and regulates apoptosis. In: Journal of cell science. 2013 ; Vol. 126, No. 19. pp. 4358-4368.
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