The low molecular weight (LMW) isoforms of cyclin E deregulate the cell cycle of mammary epithelial cells.

作者: Isabelle Bedrosian , Said Akli , Khandan Keyomarsi , Hannah Wingate

DOI: 10.4161/CC.2.5.464

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摘要: Cyclin E is a positive regulator of the G1 to S phase transition cell cycle. In complex with CDK2 it responsible for cells passing restriction point, committing another round division. overexpressed and proteolytically cleaved into low molecular weight (LMW) isoforms in breast cancer lines tumor tissues compared normal tissues. These alterations cyclin are linked poor prognosis patients. Our laboratory has determined that LMW forms generated post-translationally, via elastase mediated cleavage at 2 specific sites amino-terminus full length E. order evaluate biological effects E, immortalized mammary epithelial cells, 76NE6, were stably transfected each three constructs. results reveal (T1 T2) biologically functional, as their overexpression increases abi...

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