中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Cell cycle suspension A novel process lurking in G(2) arrest

文献类型:期刊论文

作者Furusawa, Yoshiya3; Zhou, Guangming2; He, Jinpeng2; Li, Junhong1,2; Ye, Caiyong1,2; Zhou, Libin2; Zhu, Jiayun1,2; Wang, Jufang2; Mizota, Atsushi4
刊名CELL CYCLE
出版日期2011-05-01
卷号10页码:1468-1476
关键词cell cycle radiation suspension G(2) arrest cyclin B1
ISSN号1538-4101
DOI10.4161/cc.10.9.15510
英文摘要Cell cycle checkpoint is a self-protective mechanism for cells to monitor genome integrity and ensure the high-fidelity transmission of genetic information to daughter cells. Insufficient function of cell cycle checkpoints has been demonstrated to partially account for tumor initiation, promotion and progression. In the ten melanoma cell lines that we tested in preliminary experiments, two human uveal melanoma cell lines, 92-1 and OCM-1, were found to be significantly different in terms of radiosensitivity but similar in DNA repair ability. Evident G(2) arrest was induced in both cell types and the maximum was reached at 16 h after irradiation regardless of X-rays or high-LET carbon beams. OCM-1 cells overrode the G(2) arrest and reentered the cell cycle right after reaching the maximum, whereas 92-1 could not. Upon 10 Gy of radiation, the cell cycle of 92-1 was suspended and remained unchanged for up to 5 d. The cell cycle suspension is a unique process lurking in G(2) arrest and related to cellular radiosensitivity. Its induction is dose-dependent and there is a dose threshold for it. The degradation of Cyclin B1 has been found related to the cell cycle suspension though, the mechanism of cell cycle suspension is still under investigation. Basing on our knowledge, this is the first report on cell cycle suspension and we present here a de novo mechanism to cellular radiosensitivity. Further clarification of the mechanism underlying cell cycle suspension is believed to be of significance in tumor radiosensitization or even direct tumor control.
WOS关键词HUMAN TUMOR-CELLS ; IONIZING-RADIATION ; CANCER-CELLS ; HELA-CELLS ; LINES ; CHECKPOINTS ; MELANOMA ; RADIOSENSITIVITY ; EXPRESSION ; APOPTOSIS
资助项目Major State Basic Research Development Program of China (973 Program)[2010CB834201] ; Chinese Academy of Sciences[0760140BR0]
WOS研究方向Cell Biology
语种英语
WOS记录号WOS:000290145600025
出版者LANDES BIOSCIENCE
资助机构Major State Basic Research Development Program of China (973 Program) ; Chinese Academy of Sciences
源URL[http://119.78.100.186/handle/113462/35058]  
专题近代物理研究所_生物物理研究室
通讯作者Zhou, Guangming
作者单位1.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Radiobiol Effects Grp, Lanzhou, Peoples R China
3.Natl Inst Radiol Sci, Res Ctr Charged Particle Therapy, Chiba 260, Japan
4.Juntendo Univ, Dept Ophthalmol, Urayasu Hosp, Urayasu, Japan
推荐引用方式
GB/T 7714
Furusawa, Yoshiya,Zhou, Guangming,He, Jinpeng,et al. Cell cycle suspension A novel process lurking in G(2) arrest[J]. CELL CYCLE,2011,10:1468-1476.
APA Furusawa, Yoshiya.,Zhou, Guangming.,He, Jinpeng.,Li, Junhong.,Ye, Caiyong.,...&Mizota, Atsushi.(2011).Cell cycle suspension A novel process lurking in G(2) arrest.CELL CYCLE,10,1468-1476.
MLA Furusawa, Yoshiya,et al."Cell cycle suspension A novel process lurking in G(2) arrest".CELL CYCLE 10(2011):1468-1476.

入库方式: OAI收割

来源:近代物理研究所

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