PML3 interacts with TRF1 and is essential for ALT-associated PML bodies assembly in U2OS cells.
PML3 interacts with TRF1 and is essential for ALT-associated PML bodies assembly in U2OS cells.
复制标题
PML3 与 TRF1 相互作用,对于 U2OS 细胞中 ALT 相关的 PML 体组装至关重要。
DOI:
10.1016/j.canlet.2009.10.009
复制
发表时间:
2010-05
期刊:
影响因子:
9.7
通讯作者:
Jianping Lan
中科院分区:
文献类型:
--
作者:
Xiaoyu Lai;Chong Wang;He Huang;Quan Wu;Changjiang Jin;Jian Yu;Jie Sun;Yuanyuan Zhu;Jianping Lan
Telomerase-negative cancer cells maintain their telomeres by a mechanism known as alternative lengthening of telomeres (ALT) and achieve unlimited replicative potential. A hallmark of ALT cells is the recruitment of telomeres to promyelocytic leukemia (PML) bodies and formation of ALT-associated PML bodies (APBs). Although the exact molecular mechanism of APBs assembly remains unclear, APBs assembly requires telomere and PML body-associated proteins, including TRF1 and PML. Here, we report that PML3, one of PML isoforms, is involved in APBs formation. As a new binding protein of TRF1 (telomeric repeat binding factor 1), PML3 directly interacts with TRF1 and recruits TRF1 to PML bodies in U2OS cells. More notably, depletion of PML3 by small interfering RNA does not affect PML bodies formation, but inhibits the recruitment of both TRF1 and TRF2 to APBs. Further study shows that the recruitment of TRF1 to APBs depends on its interaction with a specific PML3 isoform. Thus, the interaction of PML3 with TRF1 is isoform specific and likely to be essential for APBs assembly in U2OS cells.
登录
查看更多内容
影响因子:
11.2
作者:
Thomas R. Yeager;A. Neumann;Anna Englezou;L. Huschtscha;J. R. Noble;R. Reddel
通讯作者:
Thomas R. Yeager;A. Neumann;Anna Englezou;L. Huschtscha;J. R. Noble;R. Reddel
影响因子:
11.2
作者:
Guikai Wu;Xianzhi Jiang;Wen-Hwa Lee;Phang-lang Chen
通讯作者:
Guikai Wu;Xianzhi Jiang;Wen-Hwa Lee;Phang-lang Chen
影响因子:
4.8
作者:
Ze-Huai Zhong;Wei‐Qin Jiang;Anthony J. Cesare;A. Neumann;R. Wadhwa;R. Reddel
通讯作者:
Ze-Huai Zhong;Wei‐Qin Jiang;Anthony J. Cesare;A. Neumann;R. Wadhwa;R. Reddel
影响因子:
11.4
作者:
BRYAN, TM;ENGLEZOU, A;REDDEL, RR
通讯作者:
REDDEL, RR
影响因子:
5.3
作者:
Perrem, K;Colgin, LM;Reddel, RR
通讯作者:
Reddel, RR