Low expression of spindle checkpoint protein, Cenp-E, causes numerical chromosomal abnormalities in HepG-2 human hepatoma cells
نویسندگان
چکیده
منابع مشابه
Chromosomal Instability: Mad2 beyond the Spindle Checkpoint
What specific defects can cause chromosomal instability in cancer cells? Overexpression of the mitotic checkpoint protein Mad2 triggers chromosome missegregation but, surprisingly, Mad2 exerts this effect through a previously unknown effect on microtubule dynamics.
متن کاملReduced expression of cenp-e in human hepatocellular carcinoma
BACKGROUND CENP-E, one of spindle checkpoint proteins, plays a crucial role in the function of spindle checkpoint. Once CENP-E expression was interrupted, the chromosomes can not separate procedurally, and may result in aneuploidy which is a hallmark of most solid cancers, such as hepatocellular carcinoma (HCC). We investigate the expression of CENP-E in human hepatocellular carcinoma,. and ana...
متن کاملCenp-meta is required for sustained spindle checkpoint
Cenp-E is a kinesin-like motor protein required for efficient end-on attachment of kinetochores to the spindle microtubules. Cenp-E immunodepletion in Xenopus mitotic extracts results in the loss of mitotic arrest and massive chromosome missegregation, whereas its depletion in mammalian cells leads to chromosome segregation defects despite the presence of a functional spindle assembly checkpoin...
متن کاملSpindle Checkpoint Protein Dynamics at Kinetochores in Living Cells
BACKGROUND To test current models for how unattached and untense kinetochores prevent Cdc20 activation of the anaphase-promoting complex/cyclosome (APC/C) throughout the spindle and the cytoplasm, we used GFP fusions and live-cell imaging to quantify the abundance and dynamics of spindle checkpoint proteins Mad1, Mad2, Bub1, BubR1, Mps1, and Cdc20 at kinetochores during mitosis in living PtK2 c...
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The main objective of this paper was to investigate the extraction process of ethanol extract of Radix Semiaquilegiae, as well as its inhibitory activity on human hepatoma HepG-2 and SMMC-7721 cells, and to compare the inhibitory effects of different concentrations of ethanol extracts against these two hepatoma cells. Ethanol reflux extraction and ultrasound-assisted extraction with ethanol at ...
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ژورنال
عنوان ژورنال: Oncology Letters
سال: 2015
ISSN: 1792-1074,1792-1082
DOI: 10.3892/ol.2015.3721