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PNAS:惊人!化疗药物本身就会促进癌细胞的转移

2017-08-08 佚名 来宝网

俄亥俄州哥伦布市——同样的治疗,可以防止乳腺癌黑暗——它可以激起对肺部疾病的传播。

俄亥俄州哥伦布市——同样的治疗,可以防止乳腺癌黑暗——它可以激起对肺部疾病的传播。

俄亥俄州立大学的研究人员研究了导致癌症转移的级联事件,癌症究竟为什么会发生转移一直是医学界无法攻克的难题,日前,科学家们发现了一些乳腺癌转移的线索。

在对小鼠进行的试验中,研究人员发现一线化疗药物紫杉醇会引发各种各样的分子水平变化,允许的乳腺癌细胞逃窜,同时,它还在肺部中创建了一个好客的环境,欢迎癌细胞的光顾,促进疾病的传播。

这项研究发表在《美国国家科学院学报》上,报告中包括患有乳腺癌的女性数据分析,而且小鼠试验的结果也可以解释人类乳腺癌转移的路径。

研究人员表示:“化疗同时也促进癌症恶化,这在癌症研究中是一个新兴的启示。然而,分子水平上对这种灾难性影响的理解还不清楚。

首先,化疗似乎会发送信号,增加癌细胞可以逃离原发肿瘤分子门的数量,并且释放到血液中,前往其他器官,这是一个非常活跃的生物变化过程,就像是“漏水的船”一样。接着,俄亥俄州立大学的研究人员发现,除了帮助肿瘤细胞逃避,紫杉醇创造了一连串的事件,使肺的组织环境成为肿瘤细胞的沃土。

如果可以将癌细胞转移的分子水平解释清楚,那么就可以在肿瘤转移的早期加以干预。

原始出处:
Yi Seok Chang, Swati P. Jalgaonkar, Justin D. Middletona,et al.Stress-inducible gene Atf3 in the noncancer host cells contributes to chemotherapy-exacerbated breast cancer metastasis.PNAS August 7, 2017 doi: 10.1073/pnas.1700455114

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    2018-03-30 drwjr
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    2017-08-10 luominglian113

    学习了,谢谢分享

    0

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    2017-08-10 yxch36
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    2017-08-09 semrour

    很震惊,化疗药物杀灭原发肿瘤的同时又促进肿瘤转移!学习了!

    0

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    2017-08-08 Y—xianghai

    学习了新知识

    0

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    2017-08-08 1e0e5697m83(暂无匿称)

    henhao

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