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活性蛋白A/ACVR2A轴通过激活SMAD2来抑制结肠癌中的上皮细胞转化为介质酶的转变

Hui Zhang¹, Qiang Ruan², Changjiang Chen³

¹Department of Hepatopancreatobiliary Surgical Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian, People's Republic of China.

Molecular carcinogenesis

|June 28, 2023

概括

激素A/ACVR2A信号传导通过抑制细胞迁移和侵入来抑制结肠癌转移. 降低ACVR2A的调节与肝转移和较差的患者存活率有关,这表明ACVR2A是治疗点.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
癌症转移研究癌症转移研究

背景情况:

结肠直肠癌 (CRC) 是全球癌症死亡的主要原因.
肝转移是CRC相关死亡的主要驱动因素.
转移性CRC的有效治疗方法有限,需要对潜在的生物机制进行研究.

研究的目的:

为了研究激素A/激素受体2A型 (ACVR2A) 轴在结肠直肠癌肝脏转移中的作用.
阐明激素A/ACVR2A影响癌细胞行为和转移的分子机制.

主要方法:

使用小鼠结肠癌细胞系进行体外研究,以评估细胞迁移,入侵和上皮细胞转变为介质细胞 (EMT).
结肠癌肝脏转移的动物模型中的体内验证.
涉及蛋白质与蛋白质相互作用 (activin A-Smad2/3) 和转录激活的机制研究.
对临床样本进行配对分析和对患者数据进行生物信息学分析.

主要成果:

活性蛋白A/ACVR2A信号抑制了结肠癌细胞的迁移,入侵和EMT在体外.
这些发现得到了体内动物实验的证实.
选择性激活的Smad2,而不是Smad3.
与原发性瘤和健康组织相比,肝转移组织中ACVR2A和SMAD2的表达显着较低.
降低ACVR2A的调节与肝转移的增加以及减少无疾病和无进展的存活率相关.

结论:

通过选择性Smad2激活,activin A/ACVR2A轴在抑制结肠癌肝转移方面发挥着至关重要的作用.
减少ACVR2A的表达促进结肠癌的转移.
向ACVR2A通路代表了预防或治疗结直肠癌肝转移的潜在治疗策略.

关键词:

这就是ACVR2A.这就是SMAD2的原因.活性蛋白 A 是一种活性蛋白.结肠癌是什么意思结肠癌是什么意思表皮细胞到介质细胞的过渡.肝脏转移的发生.

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