TRIM69-MST2信号轴调节中枢细胞组动力学和染色体分离
Yilin Wang1, Patrik Risteski2, Yang Yang1,3
1Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27599, USA.
Nucleic acids research
|September 22, 2023
概括
三方基因 (TRIM) 69 (TRIM69) 通过控制中心体动力学来调节细胞分裂. TRIM69-ablation导致染色体分离缺陷,突出其在预防癌症方面的作用.
科学领域:
- 细胞生物学 细胞生物学
- 分子瘤学分子瘤学
- 遗传学 是一个遗传学.
背景情况:
- 中心细胞复制和分离对于防止染色体不稳定至关重要.
- 改变的中心细胞结构和数量是癌细胞的标志,有助于瘤发生.
研究的目的:
- 调查三方基因 (TRIM) 家庭成员E3泛基因酶TRIM69在调节中枢细胞组动力学和神经分裂中的作用.
- 确定TRIM69的结合伙伴并阐明其控制细胞分裂的分子机制.
主要方法:
- 一个中枢细胞放大20 (CA20) 基因签名的分析.
- 在癌细胞中的TRIM69-ablation.
- 共同免疫沉以确定有约束力的合作伙伴.
- 免疫光显微镜用于评估心体和微管组织.
- 西方涂抹用于分析蛋白质酸化.
主要成果:
- 一个CA20基因签名与高TRIM69表达相关.
- TRIM69-ablation导致中心细胞散射和染色体分离缺陷.
- TRIM69直接与氨酸/氨酸-蛋白激酶3 (MST2) 结合并重新分配.
- TRIM69在S15促进MST2酸化,这对中枢细胞分裂至关重要.
- 通过PRC1和DYNEIN,TRIM69促进了微管子捆绑和中心体分离.
结论:
- TRIM69是一种新型的中心体动力学和双极神经分裂的调节剂.
- TRIM69协调MST2信号和微管组织,以确保适当的细胞分裂.
- 向TRIM69可能为具有中心细胞异常的癌症提供治疗策略.
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