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Targeting CD133 reverses drug-resistance via the AKT/NF-κB/MDR1 pathway in colorectal cancer.
British Journal of Cancer ( IF 6.4 ) Pub Date : 2020-03-16 , DOI: 10.1038/s41416-020-0783-0
Zeting Yuan 1, 2 , Xin Liang 3 , Yueping Zhan 4 , Ziyuan Wang 5 , Jian Xu 4 , Yanyan Qiu 1 , Jie Wang 6 , Yijun Cao 6 , Van-Minh Le 7 , Hai-Trieu Ly 7 , Jianhua Xu 1 , Wei Li 6 , Peihao Yin 1, 2, 6 , Ke Xu 1, 2, 4
Affiliation  

BACKGROUND Recent studies have shown that multidrug resistance may be induced by the high stemness of cancer cells. Following prolonged chemotherapy, MDR protein 1 (MDR1) and CD133 increase in CRC, but the relationship between them is unclear. METHODS The relationship between MDR and CSC properties in CRC was determined via CCK-8 assay, apoptosis assay, DOX uptake and retention, immunohistochemistry, immunofluorescence and flow cytometry. The correlations between their expression levels were evaluated using Spearman's rank statistical test and the Mann-Whitney test. Furthermore, the effect of CD133 on the repression of the AKT/NF-κB/MDR1 signalling pathway was investigated in vitro and in vivo. RESULTS We found that CD133 increased with the emergence of drug-resistance phenotypes, and the high expression of MDR1/P-gp was consistently accompanied by positive expression of CD133 as demonstrated by the analysis of patient samples. Up- or downregulation of CD133 could regulate MDR via AKT/NF-κB/MDR1 signalling in CRC. A rescue experiment showed that the AKT/NF-κB signalling pathway is the main mechanism by which CD133 regulates MDR1/P-gp expression in CRC. CONCLUSIONS Taken together, our results suggest that targeting CD133 reverses drug resistance via the AKT/NF-κB/MDR1 pathway and that this pathway might serve as a potential therapeutic target to reverse MDR in CRC.

中文翻译:

靶向CD133可以通过AKT /NF-κB/ MDR1途径逆转大肠癌的耐药性。

背景技术最近的研究表明,癌细胞的高干性可以诱导多药耐药性。长期化疗后,MDR蛋白1(MDR1)和CD133的CRC升高,但它们之间的关系尚不清楚。方法通过CCK-8法,细胞凋亡法,DOX摄取和保留,免疫组化,免疫荧光和流式细胞术确定CRC中MDR和CSC特性之间的关系。使用Spearman秩统计检验和Mann-Whitney检验评估了它们表达水平之间的相关性。此外,在体外和体内研究了CD133对AKT /NF-κB/ MDR1信号通路抑制的影响。结果我们发现CD133随着耐药表型的出现而增加,如对患者样品的分析所证实的,MDR1 / P-gp的高表达始终伴随着CD133的阳性表达。CD133的上调或下调可以通过AKT /NF-κB/ MDR1信号调节CRC中的MDR。救援实验表明,AKT /NF-κB信号通路是CD133调节CRC中MDR1 / P-gp表达的主要机制。结论综上所述,我们的结果表明靶向CD133可通过AKT /NF-κB/ MDR1途径逆转耐药性,并且该途径可能是逆转CRC中MDR的潜在治疗靶点。救援实验表明,AKT /NF-κB信号通路是CD133调节CRC中MDR1 / P-gp表达的主要机制。结论综上所述,我们的结果表明靶向CD133可通过AKT /NF-κB/ MDR1途径逆转耐药性,并且该途径可能是逆转CRC中MDR的潜在治疗靶点。救援实验表明,AKT /NF-κB信号通路是CD133调节CRC中MDR1 / P-gp表达的主要机制。结论综上所述,我们的结果表明靶向CD133可通过AKT /NF-κB/ MDR1途径逆转耐药性,并且该途径可能是逆转CRC中MDR的潜在治疗靶点。
更新日期:2020-03-16
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