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J Cancer:黄连素增强了乳腺癌的化疗敏感性,并通过剂量编排的AMPK信号通路诱发细胞凋亡

2017-06-13 MedSci MedSci原创

黄连素增强了乳腺癌的化疗敏感性,并通过剂量编排的AMPK信号通路诱发细胞凋亡

乳腺癌是女性中最常见的恶性肿瘤。虽然个性化或靶向分子癌症治疗目前比较流行,但对晚期乳腺癌患者来说,细胞毒性化疗被认为是另一种选择方案。

然而,化疗仍然是乳腺癌治疗的常见的和关键的局限性。

黄连素,被称为AMPK激活者,已经展示了包括抗肿瘤效应在内的多种活动。

在这项研究中,我们研究了不同剂量的黄连素对耐药的人类乳腺癌MCF-7/MDR细胞在体外和体内的化疗敏感作用,以及对阿霉素(DOX)化学敏感性的AMPK活化机制。

我们的研究结果表明,黄连素可以通过剂量编排的方式来克服对阿霉素(DOX)的耐药性:一方面,低剂量的黄连素可以通过 AMPK-HIF-1α-P-gp 途径提高阿霉素(DOX)在耐药性乳腺癌细胞的灵敏度。另一方面,高剂量的黄连素通过 AMPK-p53 途径独立表达HIF-1α 单独直接诱导细胞凋亡。

综合来看,我们的发现表明黄连素使耐药的乳腺癌对于阿霉素(DOX)化疗变得敏感,并通过在体外和体内的剂量编排的AMPK信号通路直接诱导细胞凋亡。

黄连素似乎是一种用于治疗乳腺癌很有前景的化疗增敏剂和化疗药物。

原始出处

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    2022-02-16 医者仁者

    #黄连素#不过结果令人难以相信哦

    0

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    2018-07-20 明崖

    学习了,有用的研究

    0

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    2017-06-25 营养医师

    又是中国人发的

    0

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