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J Exp Clin Cancer Res:RUNX1可促进结直肠癌的肿瘤转移

2019-08-12 不详 网络

RUNX1在上皮肿瘤中起着致癌基因和抗癌基因的作用,并且RUNX1异常升高可促进结直肠癌(CRC)的发生,但是机制仍不清楚。通过实时定量PCR和Western印迹检测RUNX1在CRC和正常组织中的表达。通过体外和体内功能实验进行RUNX1对CRC迁移和侵袭的影响。染色质免疫沉淀测定验证了RUNX1对KIT启动子的直接调节,其导致Wnt/β-连环蛋白信号传导的激活。结果显示,RUNX1表达在CRC

RUNX1在上皮肿瘤中起着致癌基因和抗癌基因的作用,并且RUNX1异常升高可促进直肠癌(CRC)的发生,但是机制仍不清楚。

通过实时定量PCR和Western印迹检测RUNX1在CRC和正常组织中的表达。通过体外和体内功能实验进行RUNX1对CRC迁移和侵袭的影响。染色质免疫沉淀测定验证了RUNX1对KIT启动子的直接调节,其导致Wnt/β-连环蛋白信号传导的激活。

结果显示,RUNX1表达在CRC组织中上调。RUNX1上调促进CRC的细胞转移和上皮至间充质转化(EMT)。此外,RUNX1可通过直接与β-连环蛋白相互作用并靶向KIT的启动子和增强子区域来激活KIT转录,从而激活CRC细胞中的Wnt/β-连环蛋白信号传导。这些观察结果表明,RUNX1上调是CRC标本中的常见事件,并且与癌症转移密切相关,并且RUNX1通过激活Wnt/β-连环蛋白信号传导促进CRC细胞的EMT。此外,RUNX1受Wnt/β-连环蛋白调节。

综上所述,该研究结果首次证明RUNX1通过激活Wnt/β-连环蛋白信号通路和EMT促进CRC转移。

原始出处:

Li Q, Lai Q, et al., RUNX1 promotes tumour metastasis by activating the Wnt/β-catenin signalling pathway and EMT in colorectal cancer. J Exp Clin Cancer Res. 2019 Aug 1;38(1):334. doi: 10.1186/s13046-019-1330-9.

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