Jegannathan Srimathi Devi, Jayapal Wishwaa, Jayaprakash Bindhu, Prabhu Teena
Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Affiliated to Anna University, Coimbatore, 641062, India.
Anticancer Agents Med Chem. 2025;25(13):934-953. doi: 10.2174/0118715206336591241112061246.
Cisplatin (CIS) is a standard chemotherapeutic drug currently used for various cancer treatments. Due to its chemo-resistance and toxic effects, a new combinatorial approach was preferred. Oleanolic acid is one such pentacyclic terpenoid compound that tends to have various anti-cancer properties against a wide range of human carcinoma models. Yet, the final mechanisms of individual and Combinational Treatment of OA and CIS on pancreatic carcinoma persist indescribable.
The Current study analyses the and Molecular efficacy of the combinational dose of OA and CIS in Pancreatic cancer using the Panc-1 cell line.
The preliminary screening of the anti-cancer effect of OA and CIS was evaluated meticulously using docking score with Auto-Dock. For further analysis of the ligand, OA was isolated from blueberry through ultrasonication extraction, followed by a comprehensive range of qualitative and quantitative analysis by chromatography techniques and GC-MS studies. Anti-proliferative and cytotoxicity activity of our combinational compounds were determined using the MTT assay and the LDH leakage assay. Cell membrane integrity was analyzed by measuring ROS generation and mitochondrial membrane potential in treated cells using fluorometric detection methods. Detection of the Anti-Apoptotic potential of our target compound was evaluated by DNA fragmentation assay and Caspase activity assay. Quantitative real-time PCR and Western Blotting were used to determine the genes and Protein expression intricated for apoptosis, angiogenesis, cell cycle regulation, and metastasis.
Molecular docking analysis suggests that OA and CIS possess a strong binding affinity for hydrogen bond interaction with the highest fitness score for various anti-cancer genes, leading to the drug's significant apoptotic and anti-angiogenic effects. Further preliminary analysis reports of UV spectra and GC-MS data suggested that the OA compound tends to exhibit a peak at 235-288 nm with a GC retention time of 15.45 min with m/z 240 and m/z 280 ratios. The output of analysis of the anti-proliferative and cytotoxicity effect of OA and CIS tends to show the significant inhibition of cells in a dose-dependent manner with IC value of 5.75 μM OA and 2.95 μM of CIS with significant leakage in LDH was observed in combinational treated cells compare to individual treated cancer cells. The computational CI plot report of OA and CIS report revealed a synergistic dose effect with a CI value<1. Apoptotic effect of combinational dose revealed synergistic effects by down-regulation of angiogenic and metastatic genes and proteins (CDKN2A, SMAD4, VEG-F, MMP-9) stimulates the caspase cascade activation by intrinsic mediated apoptosis, which was further confirmed through DNA fragmentation assay by cleavage of fragments in treated cells compared to control.
In conclusion, the present study indicates that the co-treatment of OA with CIS in pancreatic cancer cells exerts strong interaction with synergistic effects on cell growth inhibition, apoptosis induction, and angiogenesis genes through regulating signal-target proteins applicable for pancreatic cancer.
顺铂(CIS)是目前用于各种癌症治疗的标准化疗药物。由于其化疗耐药性和毒性作用,一种新的联合治疗方法更受青睐。齐墩果酸就是这样一种五环三萜类化合物,它对多种人类癌症模型往往具有多种抗癌特性。然而,齐墩果酸和顺铂单独及联合治疗胰腺癌的最终机制仍难以描述。
本研究使用Panc-1细胞系分析齐墩果酸和顺铂联合剂量对胰腺癌的分子疗效。
使用Auto-Dock对接分数对齐墩果酸和顺铂的抗癌作用进行了细致的初步筛选评估。为了进一步分析配体,通过超声提取从蓝莓中分离出齐墩果酸,随后通过色谱技术和气相色谱-质谱联用(GC-MS)研究进行全面的定性和定量分析。使用MTT法和乳酸脱氢酶(LDH)泄漏试验测定联合化合物的抗增殖和细胞毒性活性。通过荧光检测方法测量处理后细胞中活性氧(ROS)的产生和线粒体膜电位,分析细胞膜完整性。通过DNA片段化试验和半胱天冬酶活性试验评估目标化合物的抗凋亡潜力。使用定量实时聚合酶链反应(PCR)和蛋白质免疫印迹法确定参与细胞凋亡、血管生成、细胞周期调控和转移的基因和蛋白质表达。
分子对接分析表明,齐墩果酸和顺铂对各种抗癌基因具有很强的氢键相互作用结合亲和力,具有最高的适应度得分,导致药物具有显著的凋亡和抗血管生成作用。紫外光谱和GC-MS数据的进一步初步分析报告表明,齐墩果酸化合物在235 - 288纳米处有一个峰,气相色谱保留时间为15.45分钟,质荷比为240和280。齐墩果酸和顺铂抗增殖和细胞毒性作用的分析结果显示,对细胞有显著的剂量依赖性抑制,齐墩果酸的半数抑制浓度(IC)值为5.75微摩尔,顺铂为2.95微摩尔,与单独处理的癌细胞相比,联合处理的细胞中观察到LDH有显著泄漏。齐墩果酸和顺铂的计算联合指数(CI)图报告显示协同剂量效应,CI值<1。联合剂量的凋亡作用通过下调血管生成和转移基因及蛋白质(细胞周期蛋白依赖性激酶抑制剂2A(CDKN2A)、SMAD4、血管内皮生长因子(VEG-F)、基质金属蛋白酶-9(MMP-9))显示出协同效应,通过内在介导的凋亡刺激半胱天冬酶级联激活,与对照相比,处理后细胞中的片段裂解通过DNA片段化试验进一步证实了这一点。
总之,本研究表明,在胰腺癌细胞中,齐墩果酸与顺铂联合治疗通过调节适用于胰腺癌的信号靶蛋白,对细胞生长抑制、凋亡诱导和血管生成基因产生强烈的相互作用和协同效应。