» Articles » PMID: 24776885

Cyclin B2 and P53 Control Proper Timing of Centrosome Separation

Overview
Journal Nat Cell Biol
Specialty Cell Biology
Date 2014 Apr 30
PMID 24776885
Citations 111
Authors
Affiliations
Soon will be listed here.
Abstract

Cyclins B1 and B2 are frequently elevated in human cancers and are associated with tumour aggressiveness and poor clinical outcome; however, whether and how B-type cyclins drive tumorigenesis is unknown. Here we show that cyclin B1 and B2 transgenic mice are highly prone to tumours, including tumour types where B-type cyclins serve as prognosticators. Cyclins B1 and B2 both induce aneuploidy when overexpressed but through distinct mechanisms, with cyclin B1 inhibiting separase activation, leading to anaphase bridges, and cyclin B2 triggering aurora-A-mediated Plk1 hyperactivation, resulting in accelerated centrosome separation and lagging chromosomes. Complementary experiments revealed that cyclin B2 and p53 act antagonistically to control aurora-A-mediated centrosome splitting and accurate chromosome segregation in normal cells. These data demonstrate a causative link between B-type cyclin overexpression and tumour pathophysiology, and uncover previously unknown functions of cyclin B2 and p53 in centrosome separation that may be perturbed in many human cancers.

Citing Articles

Securin regulates the spatiotemporal dynamics of separase.

Sorensen Turpin C, Sloan D, LaForest M, Klebanow L, Mitchell D, Severson A J Cell Biol. 2024; 224(2).

PMID: 39556062 PMC: 11574863. DOI: 10.1083/jcb.202312099.


The two sides of chromosomal instability: drivers and brakes in cancer.

Hosea R, Hillary S, Naqvi S, Wu S, Kasim V Signal Transduct Target Ther. 2024; 9(1):75.

PMID: 38553459 PMC: 10980778. DOI: 10.1038/s41392-024-01767-7.


Upregulation of CCNB2 and a novel lncRNAs-related risk model predict prognosis in clear cell renal cell carcinoma.

Ren C, Wang Q, Xu Z, Pan Y, Wang S, Liu X J Cancer Res Clin Oncol. 2024; 150(2):64.

PMID: 38300330 PMC: 10834599. DOI: 10.1007/s00432-024-05611-x.


Securin Regulates the Spatiotemporal Dynamics of Separase.

Sorensen Turpin C, Sloan D, LaForest M, Klebanow L, Mitchell D, Severson A bioRxiv. 2024; .

PMID: 38168402 PMC: 10760073. DOI: 10.1101/2023.12.12.571338.


Twenty years of merotelic kinetochore attachments: a historical perspective.

Cimini D Chromosome Res. 2023; 31(3):18.

PMID: 37466740 PMC: 10411636. DOI: 10.1007/s10577-023-09727-7.


References
1.
Hahn W, Dessain S, Brooks M, King J, Elenbaas B, Sabatini D . Enumeration of the simian virus 40 early region elements necessary for human cell transformation. Mol Cell Biol. 2002; 22(7):2111-23. PMC: 133688. DOI: 10.1128/MCB.22.7.2111-2123.2002. View

2.
Bakhoum S, Thompson S, Manning A, Compton D . Genome stability is ensured by temporal control of kinetochore-microtubule dynamics. Nat Cell Biol. 2008; 11(1):27-35. PMC: 2614462. DOI: 10.1038/ncb1809. View

3.
Pfau S, Amon A . Chromosomal instability and aneuploidy in cancer: from yeast to man. EMBO Rep. 2012; 13(6):515-27. PMC: 3367249. DOI: 10.1038/embor.2012.65. View

4.
Zhang Y, Foreman O, Wigle D, Kosari F, Vasmatzis G, Salisbury J . USP44 regulates centrosome positioning to prevent aneuploidy and suppress tumorigenesis. J Clin Invest. 2012; 122(12):4362-74. PMC: 3533537. DOI: 10.1172/JCI63084. View

5.
Sarafan-Vasseur N, Lamy A, Bourguignon J, Le Pessot F, Hieter P, Sesboue R . Overexpression of B-type cyclins alters chromosomal segregation. Oncogene. 2002; 21(13):2051-7. DOI: 10.1038/sj.onc.1205257. View