黄芪总黄酮联合顺铂对Lewis荷瘤小鼠抗癌作用的研究

Anti-cancer effect of the flavonoids of Astragalus combined with cisplatin on Lewis lung carcinoma-bearing mice

本研究旨在分析黄芪总黄酮(total flavonoids of Astragalus membranaceus, TFA)联合顺铂对Lewis荷瘤小鼠的抗癌作用及机制,动物实验获得山西大学伦理委员会的批准(SXULL2018012)。肿瘤重量、肿瘤体积变化曲线、抑瘤率等药效学指标以及脏器指数分析显示黄芪总黄酮对顺铂的抗肿瘤作用具有增效减毒作用;进一步采用网络药理学技术预测黄芪总黄酮的作用靶点,结果显示毛蕊异黄酮葡萄糖苷可能是抑制肺癌的主要活性成分,细胞肿瘤抗原p53 (TRP53)、与Ras相关的C3肉毒毒素底物1 (RAC1)、受体酪氨酸蛋白激酶erbB-2 (ERBB2)、血管内皮生长因子A (VEGFA)、信号转导子和转录激活子3 (STAT3)等靶点可能与黄芪总黄酮对顺铂的增效减毒作用相关;血清IL-6含量以及肿瘤组织STAT3、p53蛋白的表达水平结果显示,黄芪总黄酮可能通过IL-6/STAT3通路来抑制肿瘤生长;UPLC-MS血清代谢组学分析结果提示,与肺癌相关的代谢通路包括鞘脂代谢通路、视黄醇代谢通路、甘油磷酸代谢通路、原代胆汁酸生物合成通路,黄芪总黄酮可回调成分相对应的通路为原代胆汁酸生物合成通路。本研究综合采用多种技术分析了黄芪总黄酮联合顺铂对Lewis荷瘤小鼠抗癌作用及作用机制,为进一步的肿瘤药物开发奠定了基础。

The aim of this study was to analyze the anti-cancer effect and mechanism of action of the flavonoids of Astragalus membranaceus(TFA) when combined with cisplatin on Lewis lung carcinoma-bearing mice.This animal experiment was approved by the Committee of the Ethics of Animal Experiment of Shanxi University(SXULL2018012). Pharmacological indices such as tumor weight, tumor volume growth curves, inhibition rate and organ indices showed that the TFA could reduce toxicity and enhance the efficacy of cisplatin. The target of TFA was predicted by network pharmacology analysis and the result showed that calycosin-7-O-β-D-glucoside might be the main active compound responsible for the anticancer effect of TFA. TRP53(cellular tumor antigen p53), RAC1(Ras-related C3 botulinum toxin substrate 1), ERBB2(receptor tyrosine-protein kinase erbB-2), VEGFA(vascular endothelial growth factor A) and STAT3(signal transducer and activator of transcription 3) may be associated with TFA in enhancing efficacy and reducing the toxicity of cisplatin. The IL-6 content in serum and expression levels of STAT3 and p53 in tumor tissues suggested that TFA may inhibit tumor growth through the IL-6/STAT3 pathway;UPLC-MS-based serum metabolomic analysis suggested that the metabolic pathways related to lung cancer include sphingolipid metabolism, retinol metabolism, glycerophospholipid metabolism, primary bile acid biosynthesis, and the TFA-regulated corresponding pathway of bile acid biosynthesis. In this study, the anticancer effect and mechanism of action of TFA combined with cisplatin on Lewis lung carcinoma-bearing mice was analyzed by the combination of various techniques, which lay a foundation for further development of anticancer drugs.