{"title":"A mechanism coupling cell division and the control of apoptosis.","authors":"Lindsey A Allan, Paul R Clarke","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Our recent results demonstrate that caspase activation is regulated during the cell cycle, establishing a direct link between the regulation of apoptosis and cell division (Allan and Clarke, 2007). We show that phosphorylation of caspase-9 is critical for the balance between these processes, restraining the initiation of apoptosis during mitosis. This mechanism is likely to be important in determining sensitivity to anti-cancer drugs that target mitotic cells. We propose that regulation of the phosphorylation of caspase-9 during prolonged mitotic arrest may provide a timing mechanism that initiates apoptosis and destroys an aberrant cell if mitosis is not successfully resolved. This mechanism may play an important role in anti-cancer surveillance and might be exploited to improve cell killing by anti-cancer drugs that target mitotic cells.</p>","PeriodicalId":87484,"journal":{"name":"SEB experimental biology series","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"SEB experimental biology series","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Our recent results demonstrate that caspase activation is regulated during the cell cycle, establishing a direct link between the regulation of apoptosis and cell division (Allan and Clarke, 2007). We show that phosphorylation of caspase-9 is critical for the balance between these processes, restraining the initiation of apoptosis during mitosis. This mechanism is likely to be important in determining sensitivity to anti-cancer drugs that target mitotic cells. We propose that regulation of the phosphorylation of caspase-9 during prolonged mitotic arrest may provide a timing mechanism that initiates apoptosis and destroys an aberrant cell if mitosis is not successfully resolved. This mechanism may play an important role in anti-cancer surveillance and might be exploited to improve cell killing by anti-cancer drugs that target mitotic cells.