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Science:前列腺癌病人为何抵抗雄激素剥夺治疗?科学家找到重要原因

2017-01-07 佚名 生物谷

发生转移的前列腺癌目前仍然不可治愈。在发表在国际学术期刊Science上的一项新研究中,罗斯威尔帕克癌症研究所的科学家们发现两个重要基因能够帮助前列腺癌进展促进治疗抵抗的发生。他们的工作阐述了前列腺癌对治疗产生适应性的新机制,为干扰甚至逆转这一致命过程提供了新的可能。“雄激素剥夺治疗是治疗发生转移的前列腺癌病人的常用方法。虽然大多数病人会在开始治疗的时候产生应答,但是癌症几乎总会复发并且变得侵袭


发生转移的前列腺癌目前仍然不可治愈。在发表在国际学术期刊Science上的一项新研究中,罗斯威尔帕克癌症研究所的科学家们发现两个重要基因能够帮助前列腺癌进展促进治疗抵抗的发生。他们的工作阐述了前列腺癌对治疗产生适应性的新机制,为干扰甚至逆转这一致命过程提供了新的可能。

“雄激素剥夺治疗是治疗发生转移的前列腺癌病人的常用方法。虽然大多数病人会在开始治疗的时候产生应答,但是癌症几乎总会复发并且变得侵袭性更强也更致命。我们发现了导致前列腺癌进一步进展的新机制,为预防和治疗这种致死性更强的前列腺癌提供了新机会。”来自罗斯威尔帕克癌症研究所的David Goodrich教授这样说道。

“重要的是,这些发现帮助我们进一步理解了前列腺癌是如何对治疗产生了适应性,癌细胞如何从依赖一个特定的治疗靶点变得对靶点的功能不再依赖。这一发现为延缓甚至逆转这种适应性提供了可能,从而延长目前治疗方法的有效作用时间。对前列腺癌的了解或可适用于其它类型的癌症。”文章共同作者Leigh Ellis教授这样说道。

在这项研究中,研究人员借助临床前模型发现抑癌基因Rb1的缺失会诱导前列腺癌对治疗产生适应性并促进前列腺癌的转移进展。他们还发现另外一个基因EZH2表达增加也与前列腺癌对治疗产生的适应性有关,或可用作治疗这种前列腺癌的靶点。通过EZH2抑制剂药物治疗产生抵抗的肿瘤可以增加前列腺癌对雄激素剥夺治疗的敏感性。该研究团队希望能够在临床研究中进一步验证这些发现。

原始出处

Sheng Yu Ku, Spencer Rosario, Yanqing Wang, Ping Mu, Mukund Seshadri, Zachary W. Goodrich, Maxwell M. Goodrich, David P. Labbé, Eduardo Cortes Gomez, Jianmin Wang, Henry W. Long, Bo Xu, Myles Brown, Massimo Loda, Charles L. Sawyers, Leigh Ellis, David W. Goodrich.Rb1 and Trp53 cooperate to suppress prostate cancer lineage plasticity, metastasis, and antiandrogen resistance.Science.2016

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    2017-01-09 jichang
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    2017-01-07 wolixiang2012

    主要发现

    0

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    2017-01-07 䖝二

    谢谢分享,学习了,需要自己看看原文

    0

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