莪術(shù)油對阿霉素耐藥的人甲狀腺未分化癌細(xì)胞株HTh74Rdox的作用研究
[Abstract]:Aim: to investigate the effect and mechanism of zedoary turmeric oil on the proliferation and drug resistance of adriamycin-resistant human thyroid undifferentiated carcinoma cell line HTh74Rdox. Methods: HTh74Rdox24 cells were treated with different concentrations of Zedoary turmeric oil (060,90120mg / L) for hours, and the cell morphology was observed under inverted microscope, and the inhibitory effect of Zedoary turmeric oil on proliferation of HTh74Rdox cells was detected by (MTT) method. Cell cycle changes and apoptosis of HTh74Rdox cells were detected by flow cytometry (Flow cytomety,FCM), and the expression of Bcl-2 and (Bax) were detected by Western blot (Western Blot,WB). The changes of multidrug resistance gene 1 (Multi-drug resistance gene1,MDR1) and adenosine triphosphate binding cassette transporter G2 (ATP-binding cassette superfamily G member 2 ABCG2) messenger ribonucleic acid (Messenger RNA,mRNA) were detected by fluorescence quantitative (Quantitative polymerase chain reaction,qPCR. Results: after treated with different concentrations of Zedoary turmeric oil (060 ~ 90120mg / L) for HTh74Rdox24 hours, the morphology of cells was observed under inverted microscope. Some cells were separated from petri dish from the concentration of 60mg/L, and the cell density coefficient decreased with the increase of the concentration of zedoary turmeric oil. The number of adherent cells is reduced, the shape of cells is changed from fusiform to fragments, particles, when the concentration of zedoary turmeric oil increases to 120 mg / L, the cells are almost completely detached from the petri dish, the shape of the cells becomes completely irregular, and the dead cells coagulate into clusters. The results showed that with the increase of the concentration of zedoary turmeric oil the inhibitory effect of zedoary turbid oil on the proliferation of HTh74Rdox cells was stronger and stronger in a time dependent manner (P0.05). The results of flow cytometry showed that Zedoary turmeric oil could induce cell apoptosis. The results of early apoptosis (P0.01) and Western Blot showed that curcuma oil could increase the expression of Bax protein and inhibit the expression of Bcl-2 protein. The ratio of Bax/Bcl-2 was increased (P0.05) QPCR: zedoary turmeric oil decreased the mRNA expression of MDR1 and ABCG2. Compared with 2.0mg/L adriamycin 0ml/L turmeric oil group and 2.0mg/L adriamycin 0ml/L turmeric oil group, HTh74Rdox cells were stimulated with single drug, adriamycin or adriamycin for 24 hours. The results showed that doxorubicin and zedoary oil combined with doxorubicin were significantly different (P0.05). When the concentration of doxorubicin was reduced to 1.0mg/L, the low concentration (45ml/L) of zedoary turmeric oil was added, which was compared with 1.5mg/L adriamycin 45mg/L zedoary oil group. Its cytotoxic effect was not statistically significant (P0.05), suggesting that adding low concentration of zedoary oil can reduce the amount of Adriamycin, it can be seen that zedoary oil has a significant synergistic effect on doxorubicin. Conclusion: Zedoary turmeric oil can inhibit the growth of HTh74Rdox cells, induce its apoptosis and improve its drug resistance. The mechanism may be related to the increase of Bax/Bcl-2 ratio and the decrease of MDR1,ABCG2 mRNA expression.
【學(xué)位授予單位】:南京中醫(yī)藥大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:R285
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