通过诱导PBX1降解,TRIM26促进非小细胞肺癌的生存
Yuening Sun1,2, Peng Lin3, Xiumin Zhou4
1Guangdong Institute of Cardiovascular Diseases, Guangdong Key Laboratory of Vascular Diseases, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 511436, P. R. China.
International journal of biological sciences
|June 16, 2023
概括
转录因子PBX1抑制非小细胞肺癌 (NSCLC) 的生长,而泛素酶TRIM26通过降解PBX1.1来促进其生长. TRIM26可能是NSCLC的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 转录因子PBX1作为几种癌症的一个瘤基因.
- 它在非小细胞肺癌 (NSCLC) 中的具体作用和机制尚不清楚.
研究的目的:
- 研究PBX1在NSCLC中的功能.
- 阐明NSCLC中PBX1的调节机制.
- 为了确定NSCLC的潜在治疗点.
主要方法:
- 亲和度净化与双重质谱法 (MS/MS) 相结合.
- 西方涂抹检测蛋白质水平和无处不在.
- 基因表达分析.
- 细胞增殖,迁移和殖民地形成的测试.
- 在NSCLC的异种移植模型.
主要成果:
- 在NSCLC组织中,PBX1的下调,并抑制细胞的增殖和迁移.
- 无素酶TRIM26与PBX1结合,调解其K48结合的多素化和蛋白质体降解.
- TRIM26促进NSCLC的扩散,殖民地形成和迁移,并且在NSCLC组织中高度表达,预测预后不佳.
- 过度表达TRIM26促进NSCLC异种移植的生长,而TRIM26淘汰会抑制它.
结论:
- TRIM26作为PBX1的无素结合酶,促进NSCLC瘤的生长.
- PBX1 抑制了 NSCLC 瘤的生长.
- TRIM26代表了NSCLC治疗的潜在新型治疗点.
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