Research Project
Grant-in-Aid for Challenging Exploratory Research
The nucleolus is disorganized at mitosis and reassembled at the beginning of interphase. Nucleolar stress response is a maintenance mechanism for nucleolar homeostasis to induce TP53 dependent growth inhibition during the nucleolar abnormality. However physiological relevance between mitotic nucleolar disassembly/assembly and nucleolar stress response is unknown. We developed a fluorescent reporter system and found mitotic inhibitors as a novel nucleolar stress inducer by chemical screening. Mitotic abnormality by inhibitors of mitosis increased p53 protein and inhibited cancerous cell growth on Nucleolar stress response dependent manner. Taken together, our results provide Nucleolar stress response as a novel mitotic surveillance mechanism depend on nucleolar reassembly. These results also suggested that our reporter system might enable to identified novel cancer therapeutics utilizing the nucleolar stress.
All 2017 2016 2015 2014 Other
All Journal Article (7 results) (of which Int'l Joint Research: 3 results, Peer Reviewed: 6 results, Open Access: 6 results, Acknowledgement Compliant: 1 results) Presentation (30 results) (of which Int'l Joint Research: 3 results, Invited: 3 results) Remarks (3 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)
Oncotarget.
Volume: 8 Issue: 4 Pages: 6353-6363
10.18632/oncotarget.14087
Oncotarget
Volume: NA Issue: 16 Pages: 22779-22790
10.18632/oncotarget.8059
Proc Natl Acad Sci U S A
Volume: 112 Issue: 31
10.1073/pnas.1510167112
J Pharmacol Sci
Volume: 127 Issue: 3 Pages: 319-325
10.1016/j.jphs.2015.01.006
医学のあゆみ
Volume: 254 Pages: 375-381
The Journal of Biological Chemistry
Volume: 289 Issue: 30 Pages: 20802-12
10.1074/jbc.m114.571893
ONCOSCIENCE
Volume: 1 Pages: 375-382
http://www.kufm.kagoshima-u.ac.jp/~moloncl2/index.html