长非编码RNA LOC100909675和转录调节器CTCF的合作调节Cdk1转录以控制天体细胞增殖
Ronghua Wu1, Haixu Lin1, Wei Zhang1
1Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China.
The Journal of biological chemistry
|August 11, 2023
概括
长非编码RNA LOC100909675 (LOC9675) 在脊髓损伤后促进星球细胞的增殖. 它与CTCF的相互作用调节了循环素依赖性激酶1 (Cdk1) 的mRNA稳定性,为神经再生疗法提供了一个新的点.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 脊髓损伤 (SCI) 导致质痕的形成,抑制神经的再生.
- 星球细胞的激活和增殖是质痕的关键驱动因素.
- 长非编码RNAs (lncRNAs) 正在成为天体细胞行为的关键表观遗传调节者.
研究的目的:
- 研究lncRNA-LOC100909675 (LOC9675) 在SCI后的天体细胞增殖中的作用.
- 阐明LOC9675影响天体细胞行为和神经再生的分子机制.
主要方法:
- RNA测序 (RNA-seq) 用于识别基因表达变化.
- RNA下拉和免疫沉测试以确定分子相互作用.
- 双 luciferase 记者和染色体免疫沉测定验证基因调节.
- 在培养的脊髓星球细胞和体内SCI模型上的体外研究.
主要成果:
- LOC9675表达增加SCI后,并促进星球细胞的增殖和迁移.
- LOC9675与CCCTC的约束因子 (CTCF) 直接相互作用.
- LOC9675-CTCF复合体调节了循环素依赖激酶1 (Cdk1) 基因转录和mRNA稳定性的作用.
- 在SCI模型中,LOC9675的耗尽减少了星细胞的增殖,并增强了轴突的再生.
结论:
- 在与CTCF合作的lncRNA LOC9675,在SCI后调节Cdk1表达和天体细胞增殖方面发挥着关键作用.
- 针对LOC9675-CTCF-Cdk1通路提供了一种新的治疗策略,用于促进脊髓损伤后的神经再生.
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