沙素通过激活Hippo通路在食道状细胞癌中表现出抗癌作用
Lin Li1,2, Hangyu Jiang1,3, Yuqi Li4
1Department of Pharmacy, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China.
素是一种海洋真菌化合物,有效地抑制食道状细胞癌 (ESCC) 的增殖,并通过激活河马路径和增加活性氧物种 (ROS) 来诱导亡. 这项研究强调了chaetocin的作用.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 河马通路功能障碍在食道状细胞癌 (ESCC) 中普遍存在.
- 沙素是一种来自海洋的化合物,显示为抗癌剂的前景.
- 在ESCC中 chaetocin 的特定抗癌机制及其与 Hippo 途径的联系尚不清楚.
研究的目的:
- 为了研究素对ESCC细胞的抗癌作用.
- 阐明Hippo途径在chaetocin的抗ESCC活性中的作用.
- 探索chaetocin作为ESCC的潜在治疗候选者.
主要方法:
- 在实验室中对ESCC细胞系进行研究,以评估增殖,细胞循环,细胞亡和活性氧物种 (ROS) 水平.
- RNA-sequencing (RNA-seq) 分析,以确定在 chaetocin 治疗后的丰富途径.
- 西方斑点分析以评估Hippo路径蛋白质酸化和YAP核转位.
- 在动物模型中进行体内研究,以确认抗瘤作用.
主要成果:
- 沙素通过诱导M相停止和激活卡斯巴酶依赖的亡,显著抑制了ESCC细胞的增殖.
- 素治疗导致细胞ROS积累增加.
- RNA-seq分析揭示了Hippo通路的显著丰富.
- 素激活了Hippo通路,由MST1/2,MOB1,LATS1和YAP的酸化增加而证明,减少了YAP的核转位.
- 抑制MST1/2部分逆转了chaetocin对增殖和亡的影响.
- 在体内研究证实了chaetocin的抗瘤功效及其与Hippo通路激活的关联.
结论:
- 沙素通过激活Hippo通路对ESCC表现出强大的抗癌作用.
- 氨酸诱导细胞循环停止,细胞亡和ROS在ESCC细胞中的积累.
- 这些发现支持chaetocin作为食道状细胞癌的有希望的治疗剂.
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