The long noncoding RNA CRYBG3 induces aneuploidy by interfering with spindle assembly checkpoint via direct binding with Bub3.

The long noncoding RNA CRYBG3 induces aneuploidy by interfering with spindle assembly checkpoint via direct binding with Bub3.
复制标题

长非编码 RNA CRYBG3 通过与 Bub3 直接结合干扰纺锤体组装检查点来诱导非整倍体

DOI:
10.1038/s41388-020-01601-8
复制
发表时间:
2021-03
期刊:
影响因子:
8
通讯作者:
Zhou G
Zhou G
中科院分区:
医学1区
文献类型:
--
作者:
Guo Z;Dai Y;Hu W;Zhang Y;Cao Z;Pei W;Liu N;Nie J;Wu A;Mao W;Chang L;Li B;Pei H;Hei TK;Zhou G

文献摘要

参考文献

被引文献

相似文献

非整倍体是基因组不稳定性的一个标志,它会导致肿瘤的发生、发展和转移。CDC20、Bub1和Bub3形成有丝分裂检查点复合物(MCC),该复合物与后期促进复合物或周期体(APC/C)结合,APC/C是纺锤体组装检查点(SAC)的一个关键因子,以确保所有姐妹染色体的双向附着和正确分离。然而,在细胞分裂过程中MCC是如何被调控以确保正常有丝分裂的,这仍然不清楚。在本研究中,我们证明了LNC CRYBG3,一种电离辐射诱导的长链非编码RNA,直接与Bub3结合并阻断其与CDC20的相互作用,从而导致非整倍体。LNC CRYBG3序列的261 - 317(S3)残基对其与Bub3蛋白的相互作用至关重要。LNC CRYBG3的过表达会导致非整倍体,并促进肺癌细胞的肿瘤发生和转移,这意味着LNC CRYBG3是一种新的癌基因。这些发现为电离辐射暴露后非小细胞肺癌的发病机制提供了新的机制基础,也为这种往往致命的疾病的诊断、治疗和预后提供了一个潜在靶点。
Aneuploidy is a hallmark of genomic instability that leads to tumor initiation, progression, and metastasis. CDC20, Bub1, and Bub3 form the mitosis checkpoint complex (MCC) that binds the anaphase-promoting complex or cyclosome (APC/C), a crucial factor of the spindle assembly checkpoint (SAC), to ensure the bi-directional attachment and proper segregation of all sister chromosomes. However, just how MCC is regulated to ensure normal mitosis during cellular division remains unclear. In the present study, we demonstrated that LNC CRYBG3, an ionizing radiation-inducible long noncoding RNA, directly binds with Bub3 and interrupts its interaction with CDC20 to result in aneuploidy. The 261–317 (S3) residual of the LNC CRYBG3 sequence is critical for its interaction with Bub3 protein. Overexpression of LNC CRYBG3 leads to aneuploidy and promotes tumorigenesis and metastasis of lung cancer cells, implying that LNC CRYBG3 is a novel oncogene. These findings provide a novel mechanistic basis for the pathogenesis of NSCLC after exposure to ionizing radiation as well as a potential target for the diagnosis, treatment, and prognosis of an often fatal disease.
屏蔽对 Fe 离子暴露后 53BP1 病灶和微核诱导的影响
DOI: 10.1093/jrr/rrt078
发表时间: 2014-01-01
影响因子: 2
作者:
Hu W;Pei H;Li H;Ding N;He J;Wang J;Furusawa Y;Hirayama R;Matsumoto Y;Liu C;Li Y;Kawata T;Zhou G
通讯作者: Zhou G
DOI: 10.1128/mcb.00762-07
发表时间: 2007-10-01
影响因子: 5.3
作者:
Duan, Zhijun;Person, Richard E.;Horwitz, Marshall S.
通讯作者: Horwitz, Marshall S.
DOI: 10.4161/23723548.2014.970484
发表时间: 2015-01
影响因子: 2.1
作者:
Lischetti T;Nilsson J
通讯作者: Nilsson J
DOI: 10.1016/0092-8674(81)90015-5
发表时间: 1991-08-09
期刊: CELL
影响因子: 64.5
作者:
LI, R;MURRAY, AW
通讯作者: MURRAY, AW
DOI: 10.1002/path.1324
发表时间: 2003-05-01
影响因子: 7.3
作者:
Grabsch, H;Takeno, S;Mueller, W
通讯作者: Mueller, W