Oncogenesis:二氢青蒿素能够通过JARID2/miR-7/miR-34a依赖的Axl下调来抑制前列腺癌

2019-03-07 AlexYang MedSci原创

Axl的表达在一些癌症类型中不受调控,并且能够预测不良总患者生存,且与药物治疗抗性的产生有关。最近,有研究人员评估了Axl天然化合物抑制剂库,鉴定了二氢青蒿素(有效成分为抗疟疾药物青蒿素)可以作为前列腺癌中Axl的抑制剂。研究发现,二氢青蒿素能够阻断Axl的表达从而导致细胞凋亡,减少前列腺癌细胞的细胞增殖、迁移和肿瘤发生。多烯紫杉醇是转移性前列腺癌的标准治疗药物,能够增加人类异种种植小鼠模型的总生

Axl的表达在一些癌症类型中不受调控,并且能够预测不良总患者生存,且与药物治疗抗性的产生有关。最近,有研究人员评估了Axl天然化合物抑制剂库,鉴定了二氢青蒿素(有效成分为抗疟疾药物青蒿素)可以作为前列腺癌中Axl的抑制剂。

研究发现,二氢青蒿素能够阻断Axl的表达从而导致细胞凋亡,减少前列腺癌细胞的细胞增殖、迁移和肿瘤发生。多烯紫杉醇是转移性前列腺癌的标准治疗药物,能够增加人类异种种植小鼠模型的总生存,而二氢青蒿素的治疗能与多烯紫杉醇一起产生协同作用。二氢青蒿素对miR-34a和miR-7表达的调控能够抑制Axl的表达。该过程至少部分的依赖于Jumonji、JARID2和zeste同系物2增强子对组蛋白H3第27位赖氨酸残基甲基化产生的染色质调控。

最后,研究人员指出,他们发现之前未鉴定的miR-34a/miR-7/JARID2途径能够调控二氢青蒿素对Axl表达的影响以及抑制癌症细胞的增殖、迁移侵入和肿瘤形成,为二氢青蒿素的抗癌症效果提供了新的分子机制,并为其在前列腺癌的治疗上的应用提供新的认识。

原始出处:

Juliano D. Paccez, Kristal Duncan, Durairaj Sekar et al. Dihydroartemisinin inhibits prostate cancer via JARID2/miR-7/miR-34a-dependent downregulation of Axl. Oncogenesis. 19 Feb 2019.

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    2019-08-26 smallant2002
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    2019-08-27 xzw113
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    2019-10-28 cy0324
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    2019-03-09 zsyan
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    2019-03-09 skhzy