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Roles of BCCIP in chromosome stability and cytokinesis
Journal article   Open access   Peer reviewed

Roles of BCCIP in chromosome stability and cytokinesis

X Meng, J Fan and Z Shen
Oncogene, Vol.26(43), pp.6253-6260
09/20/2007
DOI: 10.1038/sj.onc.1210460
PMCID: PMC2667889
PMID: 17452982
url
http://doi.org/10.1038/sj.onc.1210460View
Open Access

Abstract

The BRCA2 gene is involved in recombinational DNA repair and cytokinesis. BRCA2 defects are associated with chromosomal abnormalities, which is a hallmark of genomic instability that contributes to tumorigenesis. Here, we show that downregulation of a BRCA2 interacting protein (BCCIP) in HT1080 cells leads to chromosomal polyploidization, centrosome amplification and abnormal mitotic spindle formation. The BCCIP knockdown cells can enter mitosis and retain spindle checkpoint, but fail to complete cytokinesis. Our data suggest an essential role of BCCIP in the maintenance of genomic integrity.
BCCIP polyploidy BRCA2 cytokinesis chromosome instability

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