Abstract：
:Abscission marks the completion of cell division and its failure is associated with delayed cytokinesis and even tetraploidization. Aberrant abscission and consequential ploidy changes can underlie various diseases including cancer. Midbody, a transient structure formed in the intercellular bridge during telophase, contains several proteins including Aurora kinase B (AURKB), which participate in abscission. We report here an unexpected expression pattern and function of the transcription repressor protein CGG triplet repeat-binding protein 1 (CGGBP1), in normal human fibroblasts. We show that CGGBP1, a chromatin-associated protein, trans-localizes to spindle midzone and midbodies in a manner similar to that of AURKB. CGGBP1 depletion resulted in a cell cycle block at G2, characterized by failure of cells to undergo mitosis and also reduced entry into S phase. Consistent with its presence in the midbodies, live microscopy showed that CGGBP1 deficiency caused mitotic failure at abscission resulting in tetraploidy, which could be rescued by CGGBP1 overexpression. These results show that CGGBP1 is a bona fide midbody protein required for normal abscission and mitosis in general.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Singh U,Westermark Bdoi
10.1016/j.yexcr.2010.08.019subject
Has Abstractpub_date
2011-01-15 00:00:00pages
143-50issue
2eissn
0014-4827issn
1090-2422pii
S0014-4827(10)00413-1journal_volume
317pub_type
杂志文章abstract：:Rafoxanide is commonly used as anti-helminthic medicine in veterinary medicine, a main compound of salicylanilide. Previous studies have reported that rafoxanide, as an inhibitor of BRAF V600E mutant protein, inhibits the growth of colorectal cancer, multiple myeloma, and skin cancer. However, its therapeutic effect o...
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journal_title：Experimental cell research
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journal_title：Experimental cell research
pub_type： 杂志文章,评审
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journal_title：Experimental cell research
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journal_title：Experimental cell research
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journal_title：Experimental cell research
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journal_title：Experimental cell research
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journal_title：Experimental cell research
pub_type： 杂志文章
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更新日期：2015-11-01 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2011.01.018
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journal_title：Experimental cell research
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journal_title：Experimental cell research
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journal_title：Experimental cell research
pub_type： 杂志文章
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journal_title：Experimental cell research
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journal_title：Experimental cell research
pub_type： 杂志文章
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2003.08.002
更新日期：2003-12-10 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章,评审
doi：10.1016/j.yexcr.2007.03.012
更新日期：2007-06-10 00:00:00
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journal_title：Experimental cell research
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doi：10.1006/excr.1997.3799
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abstract：:A portion of the DNA within intact nuclei of a spontaneously transformed Chinese hamster ovary cell line (CHO-Kl) is relatively resistant to digestion by pancreatic deoxyribonuclease, as compared to nuclei from primary cultures of Chinese hamster ovary fibroblasts. Treatment of CHO-Kl cells with derivatives of 3',5' c...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/s0014-4827(83)80007-x
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2011.08.020
更新日期：2012-01-01 00:00:00
abstract：:We have searched for brain-specific extracellular molecules using a library of monoclonal antibodies against surface antigens of differentiated PC12h cells. One of the monoclonal antibodies, PCH42-14, recognized a 27/26-kDa protein of 10-week-old rat brain on immunoblotting. PCH42-14 antigen was detected only in brain...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(91)90549-a
更新日期：1991-03-01 00:00:00
