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Nature Commun:大规模系统性研究回答“癌细胞可能并不喜欢酸性环境!”

2018-08-03 小通 生物通

最近生物医学研究所((IRB Barcelona)的计算化学家Miquel Duran-Frigola却发现,当体内pH值降低时,癌细胞的增值和生存能力也会降低。

最近生物医学研究所((IRB Barcelona)的计算化学家Miquel Duran-Frigola却发现,当体内pH值降低时,癌细胞的增值和生存能力也会降低。

众所周知,癌细胞会酸化周围环境,而它们细胞内部则是碱性的。原则上,反向调控理应阻碍这些细胞的发育和增值。然而,最近生物医学研究所((IRB Barcelona)的计算化学家Miquel Duran-Frigola却发现,当体内pH值降低时,癌细胞的增值和生存能力也会降低(如图)。

研究人员开发了一个新计算模型,讨论pH值变化如何对将近2000种代谢酶活性产生影响。“我们是一个计算实验室,致力于系统生物学研究,我们想大规模地解决这个问题,”结构生物信息学和网络生物学实验室副研究员Miquel Duran-Frigola说。“理解不同pH值条件下的代谢途径之间的关联有助于我们了解癌症在碱性pH值下的生存机制。”

酸化

研究人员已经证实了他们最初的假设:如果癌细胞内部是碱性的,那么它们在酸性环境下可能更易受伤害。

新治疗靶点

研究人员鉴定了一系列在癌症发展中协调细胞内酸度的代谢酶,提示了一些可作为治疗靶点的分子。其中5个潜在目标,正用于乳腺癌细胞系测试,并取得了可喜成果。

原始出处:

Erez Persi, et al.Systems analysis of intracellular pH vulnerabilities for cancer therapy.Nature Communications 9, 2997.July 2018 

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    2018-12-17 liye789132251
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    2019-04-15 liuli5079
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    2018-12-05 ylz8403
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    2018-08-05 yxch36
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    2018-08-04 kafei

    学习了谢谢

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