一种基于昆素的衍生物表现出强烈和选择性的抗癌活性,通过Topo II抑制诱导PC-3细胞的细胞亡
Mayada E G Elsakka1, Mohamed M Tawfik2, Lamiaa A A Barakat1
1Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt.
Journal of biomolecular structure & dynamics
|March 15, 2024
概括
昆素化合物III和IV通过诱导亡和抑制多酶II表现出强烈的抗前列腺癌活性. 化合物IV在体内显著减少瘤,毒性最小,突出其治疗潜力.
科学领域:
- 药用化学 医学化学
- 癌症生物学 癌症生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 昆素衍生物具有多种生物活性,包括抗炎和抗瘤特性.
- 它们在药物化学中的治疗潜力得到越来越多的认可.
- 这项研究的重点是评估针对癌症细胞系的特定昆素化合物.
研究的目的:
- 评估四种昆素化合物 (I-IV) 对肝 (HepG2) 和前列腺 (PC-3) 癌细胞以及正常Vero细胞的细胞毒性.
- 研究最强效化合物的作用机制,重点研究亡诱导和拓聚酶II抑制.
- 在临床前癌症模型中评估化合物的体内疗效和毒性.
主要方法:
- 用MTT试验确定了细胞毒性.
- 通过细胞周期分析,Annexin V-FITC/PI染色和DNA碎片化试验来分析亡.
- 对酶抑制进行了评估,对比了拓聚酶II,并进行了分子对接研究.
- 在体内有效性被评估使用埃里希实体瘤模型在小鼠.
主要成果:
- 化合物III和IV表现出显著的抗增殖作用和对PC-3细胞的选择性 (IC50值分别为4.11μM和2.11μM).
- 化合物III和IV诱导PC-3细胞的亡和S阶段细胞周期停止.
- 化合物IV显示出强烈的抑制托皮索马酶II (IC50 7.529μM),上调的亲位蛋白 (p53,caspase-3,caspase-8) 和下调的Bcl-2.
- 在体内,IV化合物显著降低了瘤体积和体重,毒性最小.
结论:
- 化合物III和IV显示出对前列腺癌细胞有前途的抗瘤活性.
- 复合物IV作为拓聚酶II抑制剂,诱导亡并显示出显著的体内疗效.
- 昆素衍生物,特别是化合物IV,代表前列腺癌治疗的潜在治疗剂.
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