Cyclin D1b protein expression in breast cancer is independent of cyclin D1a and associated with poor disease outcome
نویسندگان
چکیده
منابع مشابه
Cyclin D1b in human breast carcinoma and coexpression with cyclin D1a is associated with poor outcome.
BACKGROUND/AIM Cyclin D1 is a mediator of cell-cycle control that is frequently overexpressed in primary ductal breast carcinomas, but its role is controversial. A polymorphism in the CCND1 gene, G870A, results in an aberrantly spliced protein (cyclin D1b) lacking the Thr-286 phosphorylation site necessary for nuclear export. Studies of murine fibroblasts have shown that although overexpression...
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Glycogen synthase kinase-3beta-dependent phosphorylation of cyclin D1 at a conserved COOH-terminal residue, Thr-286, promotes CRM1-dependent cyclin D1 nuclear export at the G(1)-S boundary. Mutations that perturb the phosphorylation of cyclin D1 at Thr-286 contribute to cell transformation, although to date, no such mutations have been found in human cancers. Cyclin D1 (CCND1) undergoes alterna...
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ژورنال
عنوان ژورنال: Oncogene
سال: 2009
ISSN: 0950-9232,1476-5594
DOI: 10.1038/onc.2009.13