喹唑啉衍生物(N111)体外抗卵巢癌的作用及机制研究

Study on the in vitro anti ovarian cancer effect and mechanism of quinazoline derivative(N111)

目的:研究喹唑啉衍生物(N111)体外抗卵巢癌的作用及机制研究;方法:通过在线数据库预测N111治疗卵巢癌靶点,并对治疗靶点进行生物学功能分析。实验分为N111处理组(N111化合物组)、阳性对照组(顺铂组)、阴性对照组(DMSO组);分组后,采用MTT法检测细胞增殖情况;形态学观察法观察细胞形态变化;JC‑1、DCFH‑DA探针检测细胞线粒体膜电位和细胞内活性氧水平变化;PI、Annexin V‑FITC、DAPI染色法检测细胞周期阻滞和凋亡情况;克隆形成实验、划痕实验检测细胞克隆形成能力和迁移能力;Western Blot法检测相关蛋白表达水平。结果:生物学功能研究结果显示N111抗卵巢癌靶点蛋白的生物功能提示靶点功能聚集人类疾病、炎症、肿瘤等方面。与对照组相比,N111对卵巢癌细胞具有显著抑制增殖作用(IC50=14.62μmol/L)(P<0.0001);浓度依赖性抑制单细胞克隆团的形成能力、迁移能力,并诱导细胞线粒体膜电位、ROS紊乱及细胞周期阻滞于S期(P<0.0001);随着N111处理浓度增加,Bcl2、Caspase 3、P‑AKT、SHIP2表达量降低,AKT表达量没有变化,Bax、Cleaved Caspase‑3表达量增加(P<0.0001)。结论:化合物N111通过抑制SHIP2,促进ROS水平紊乱,减弱AKT信号通路的激活,从而抑制肿瘤细胞A2780的增殖、迁移和克隆形成等能力,诱导细胞凋亡。

Objective:To study the anti-ovarian cancer effect and mechanism of Quinazoline derivative(N111)in vitro;Method:Using an online database to predict the therapeutic targets of N111 for ovarian cancer,and conducting biological function-al analysis of the therapeutic targets.The experiment was divided into N111 treatment group(N111 compound group),positive control group(cisplatin group),and negative control group(DMSO group);After grouping,MTT assay was used to detect cell proliferation;Morphological observation was used to observe changes in cell morphology;JC-1 and DCFH-DA probes were used to detect the changes of mitochondrial membrane potential and intracellular reactive oxygen species;PI,Annexin V-FITC,and DAPI staining were used to detect cell cycle arrest and apoptosis;Clone formation experiments and scratch tests were conducted to detect the cell's ability to form clones and migrate;Western blot method was used to detect the expression level of related pro-teins.Result:The biological function research results show that the biological function of N111 anti ovarian cancer target protein suggests that the target function aggregates human diseases,inflammation,tumors,and other aspects.Compared with the control group,N111 has a significant inhibitory effect on the proliferation of ovarian cancer cells(IC50=14.62μmol/L)(P<0.0001);In a concentration dependent manner,it inhibited the formation and migration of single cell colonies,and induced the disorder of mito-chondrial membrane potential,ROS and cell cycle arrest in S phase(P<0.0001);As the concentration of N111 treatment in-creased,the expression levels of Bcl2,Caspase 3,P-AKT,and SHIP2 decreased,while the expression levels of AKT remained unchanged.The expression levels of Bax and Cleared Caspase 3 increased(P<0.0001).Conclusion:Compound N111 inhibits SHIP2,promotes ROS level disorder,weakens the activation of AKT signaling pathway,and thus inhibits the proliferation,mi-gration,and clone formation of tumor cell A2780,inducing cell apoptosis.