Tanshinone IIA (Tan IIA) and andrographolide (Andro) are natural compounds that are reported to exhibit anticancer activities against various types of cancers. The aim of this study is to evaluate the synergistic anticancer effects of the combination of Tan IIA and Andro, and to investigate the mechanisms of pharmacological effect and their potential applications as an anticancer therapy in clinics. The anticancer effects of the combination of Tan IIA and Andro on MCF7, SMMC7721, and BGC823 cells were explored. The apoptosis of the cancer cells was determined by MTT and AV-PI dual stain assays. The intracellular GSH level was measured by DTNB assay, and the intracellular levels of reactive oxygen species (ROS) were examined by flow cytometry. The expression of the proteins in the apoptosis pathway was determined by immunobloting. The combination of Tan IIA and Andro exhibited significant synergistic anticancer effects against cancer cells, especially at low concentrations. Andro reacted with the thiol group of intracellular GSH, thus disrupting the GSH redox cycle and eventually increasing the level of intracellular ROS. Tan IIA triggered p53 responses and apoptosis by binding to the DNA of cancer cells. The crosstalk between ROS and p53 exhibited a synergistic effect on the apoptosis of cancer cells. The combination of Tan IIA and Andro showed significant synergistic effects on cancer cell apoptosis by promoting crosstalk between ROS and p53, providing a novel and effective combination that has the potential to be applied in clinical anticancer therapy.
丹参酮 IIA(Tan IIA)和
穿心莲内酯(Andro)是天然化合物,据报道对多种癌症具有抗癌活性。本研究旨在评估
丹参酮 IIA 和
穿心莲内酯(Andro)的协同抗癌效果,并探讨其药理作用机制及其作为抗癌疗法在临床上的潜在应用。研究探讨了 Tan IIA 和 Andro 复方制剂对 MCF7、
SMMC7721 和 BGC823 细胞的抗癌作用。通过 M
TT 和 AV-
PI 双染色法检测癌细胞的凋亡情况。细胞内 GSH
水平通过 DTNB 法测定,细胞内活性氧(ROS)
水平通过流式细胞仪检测。细胞凋亡通路蛋白的表达通过免疫印迹法进行测定。Tan IIA 和 Andro 的组合对癌细胞具有显著的协同抗癌作用,尤其是在低浓度时。Andro 与细胞内 GSH 的
硫醇基发生反应,从而破坏了 GSH 氧化还原循环,最终增加了细胞内 ROS 的
水平。Tan IIA 通过与癌细胞的 DNA 结合,引发 p53 反应和细胞凋亡。ROS 和 p53 之间的串联对癌细胞的凋亡具有协同作用。Tan IIA 和 Andro 的组合通过促进 ROS 和 p53 之间的串联,对癌细胞凋亡产生了显著的协同效应,提供了一种新型有效的组合,有望应用于临床抗癌治疗。