Morphine promotes cancer stem cell properties, contributing to chemoresistance in breast cancer.

Morphine promotes cancer stem cell properties, contributing to chemoresistance in breast cancer.
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吗啡促进癌症干细胞特性,有助于乳腺癌的化疗耐药性

DOI:
10.18632/oncotarget.2894
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发表时间:
2015-02-28
期刊:
影响因子:
--
通讯作者:
Liu Q
Liu Q
中科院分区:
其他
文献类型:
--
作者:
Niu DG;Peng F;Zhang W;Guan Z;Zhao HD;Li JL;Wang KL;Li TT;Zhang Y;Zheng FM;Xu F;Han QN;Gao P;Wen QP;Liu Q

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吗啡是一种阿片类镇痛药,常用于缓解癌症患者的疼痛。在这里,我们报告说,吗啡增强乳腺球形成能力,并增加干细胞相关的转录因子Oct 4,Sox 2和Nanog的表达。用吗啡处理导致MCF-7细胞中的侧群部分和BT549细胞中的CD 44 +/CD 24-/低群的富集。因此,吗啡激活Wnt/β-catenin信号传导以诱导上皮向间质转化并促进转移。此外,吗啡降低了乳腺癌细胞对传统抗癌药物的敏感性。纳美芬,一种吗啡拮抗剂,逆转吗啡诱导的乳腺癌干细胞特性和耐药性。此外,纳美芬在NOD/SCID小鼠模型中消除吗啡增强肿瘤发生。总之,我们的研究结果表明,吗啡有助于通过扩大肿瘤干细胞的群体,促进肿瘤生长的化疗耐药性,从而揭示了吗啡的新作用,并为吗啡的临床使用提供了一些新的指导。
Morphine is an opioid analgesic drug commonly used for pain relief in cancer patients. Here, we report that morphine enhances the mammosphere forming capacity and increases the expression of stemness-related transcription factors Oct4, Sox2 and Nanog. Treatment with morphine leads to enrichment of a side population fraction in MCF-7 cells and the CD44+/CD24−/low population in BT549 cells. Consistently, morphine activates Wnt/β-catenin signaling to induce epithelial to mesenchymal transition and promotes metastasis. Moreover, morphine decreases the sensitivity of traditional anti-cancer drugs in breast cancer cells. Nalmefene, an antagonist of morphine, reverses morphine-induced cancer stem cell properties and chemoresistance in breast cancer. In addition, nalmefene abolishes morphine enhancing tumorigenesis in a NOD/SCID mouse model. In conclusion, our findings demonstrate that morphine contributes to chemoresistance via expanding the population of cancer stem cells and promotes tumor growth, thereby revealing a novel role of morphine and providing some new guides in clinical use of morphine.
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