کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2204642 | 1100805 | 2011 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: pRB, a tumor suppressor with a stabilizing presence pRB, a tumor suppressor with a stabilizing presence](/preview/png/2204642.png)
The product of the retinoblastoma tumor-susceptibility gene (RB1) is a key regulator of cell proliferation and this function is thought to be central to its tumor suppressive activity. Several studies have demonstrated that inactivation of pRB not only allows inappropriate proliferation but also undermines mitotic fidelity, leading to genome instability and ploidy changes. Such properties promote tumor evolution and correlate with increased resistance to therapeutics and tumor relapse. These observations suggest that inactivation of pRB could contribute to both tumor initiation and progression. Further characterization of the role of pRB in chromosome segregation will provide insight into processes that are misregulated in human tumors and could reveal new therapeutic targets to kill or stall these chromosomally unstable lesions. We review the evidence that pRB promotes genome stability and discuss the mechanisms that probably contribute to this effect.
Journal: - Volume 21, Issue 8, August 2011, Pages 433–441