一种修改为甲酸盐的半三明治复合物抑制了通过STAT3通路的结肠癌细胞增殖和转移
Dongping Deng1, Na Xu1, Mengmeng Wang1,2
1Jiangsu Collaborative Innovation Center of Biomedical Functional Materials/Nanjing Drum Tower Hospital, College of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China zhisu@njnu.edu.cn suyanahnu@163.com fanghb@njnu.edu.cn.
RSC chemical biology
|December 19, 2024
概括
一种新型的复合物,Ir-ART,通过向STAT3通路,有效地抑制结肠癌的生长和转移. 这种化合物在结肠癌治疗中显示出化学疗法和免疫疗法的潜力.
科学领域:
- 在瘤学瘤学.
- 药用化学 医学化学
- 癌症生物学 癌症生物学
背景情况:
- 结肠癌是一种流行且具有攻击性的消化系统恶性瘤.
- 异常的信号转换器和转录3激活器 (STAT3) 激活驱动瘤扩散,转移和免疫逃避.
- 准STAT3通路是结肠癌治疗的一个有希望的策略.
研究的目的:
- 合成和评估一种新的复合物,Ir-ART,对抗结肠癌的有效性.
- 研究Ir-ART在抑制结肠癌细胞生长和转移中的作用机制.
- 评估Ir-ART在启动抗瘤免疫反应方面的潜力.
主要方法:
- 半三明治复合物的合成Ir-ART.
- 对人类结肠癌HCT-116细胞的抗增殖活性的评估.
- 机理学研究涉及细胞局部化,蛋白质表达分析 (STAT3,γ-H2AX,环素B1),反应性氧物种 (ROS) 生成,线粒体膜潜力和金属蛋白酶9 (MMP-9) 和环氧基因酶-2 (COX-2) 下调.
- 免疫性细胞死亡诱导的评估.
主要成果:
- 伊尔-ART在HCT-116细胞上表现出显著的抗增殖作用.
- 该复合物以剂量依赖的方式降低了STAT3蛋白的表达.
- 在核和线粒体中局部化的Ir-ART,诱导DNA损伤 (γ-H2AX减少),细胞循环停止 (循环B1减少),ROS积累和线粒体功能障碍,导致自细胞死亡.
- 通过MMP-9下调来抑制癌细胞迁移.
- 通过诱导免疫细胞死亡和减少免疫抑制性细胞因子COX-2,Ir-ART促进了抗瘤免疫力.
结论:
- 通过多种机制,Ir-ART有效地抑制结肠癌的扩散和转移,包括抑制STAT3和诱导自细胞死亡.
- 该综合体在结肠癌化疗和免疫治疗中具有双重应用的潜力.
- 在结肠癌治疗策略的进一步发展中,Ir-ART是有前途的候选人.
更多相关视频
07:59Portal Vein Injection of Colorectal Cancer Organoids to Study the Liver Metastasis Stroma
Published on: September 3, 2021
6.3K
09:29Development and Maintenance of a Preclinical Patient Derived Tumor Xenograft Model for the Investigation of Novel Anti-Cancer Therapies
Published on: September 30, 2016
13.6K
相关概念视频
Drugs that Stabilize Microtubules
2.0K
Microtubules are dynamic structures that undergo cycles of catastrophe and rescue. The microtubules play a central role in cell division by forming the spindle apparatus for segregating the chromosomes. This makes them ideal targets for regulating dividing cells in tumors and malignant cancer cells. Microtubule stabilizing drugs help stabilize the microtubule formation and promote its polymerization. Paclitaxel was the first microtubule stabilizing agent used as anticancer drug in chemotherapy...
2.0K
Inhibition of Cdk Activity
4.6K
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
4.6K
