PLoS Comput Biol:抑制肺癌患者对药物产生耐受性的新策略

2016-08-28 佚名 生物谷

近日,一项刊登于国际杂志PLoS Computational Biology上的研究报告中,研究者通过研究发现,正确的治疗用药,比如缺氧激活前体药物(HAPs)或可帮助抑制特定类型肺癌患者出现的药物耐受性。 HAPs可以通过在肿瘤的低氧斑块下杀灭癌细胞来发挥作用,而标准的药物很难渗入到肿瘤的低氧斑块中;然而在临床试验中HAPs对患者并没有表现出明显的效益,本文研究中来自明尼苏达大学和南加利福尼亚

近日,一项刊登于国际杂志PLoS Computational Biology上的研究报告中,研究者通过研究发现,正确的治疗用药,比如缺氧激活前体药物(HAPs)或可帮助抑制特定类型肺癌患者出现的药物耐受性。

HAPs可以通过在肿瘤的低氧斑块下杀灭癌细胞来发挥作用,而标准的药物很难渗入到肿瘤的低氧斑块中;然而在临床试验中HAPs对患者并没有表现出明显的效益,本文研究中来自明尼苏达大学和南加利福尼亚大学的研究者就开始进行研究调查如何使HAPs变得更加有效。

研究者建立了一种数学模型来监控携带EGFR基因突变的非小细胞肺癌(NSCLC)患者机体药物耐受性的产生情况,大多数携带此类亚型癌症的患者都会在埃罗替尼标准药物疗法后的12至18个月产生药物耐受性。研究者利用这种模型探索了药物埃罗替尼和名为evofosfamide的HAP的多种可能性组合,同时研究者还检测了广谱的药物剂量和疗法计划来观察到底哪种组合可以成功抑制肿瘤细胞出现埃罗替尼耐受性。

在所有的组合中,一种最有效的模式就是药物埃罗替尼和evofosfamide轮流治疗,其可以尽量减少每次evofosfamide剂量和下一次埃罗替尼的作用时间,而相比目前使用的疗法而言,这种新型组合疗法也可以更好地抑制肿瘤细胞对埃罗替尼的耐受性。研究者Jasmine Foo说道,利用缺氧激活前体药物,如果可以和当前的标准疗法进行精确组合,那么或许可以更加有利于消除非小细胞肺癌患者机体的肿瘤细胞。

尽管本文研究发现阐明了一种由EGFR驱动的非小细胞肺癌的最佳治疗体系,即药物埃罗替尼和evofosfamide的组合,但研究者认为,在这种组合性疗法用于临床患者试验之前还应当进行大量的临床前试验来证实其效力。

原始出处

Lindsay D1, Garvey CM2, Mumenthaler SM2, Foo J1.Leveraging Hypoxia-Activated Prodrugs to Prevent Drug Resistance in Solid Tumors.PLoS Comput Biol.2016

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    2016-12-21 sunylz
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    2016-08-29 靠近你

    新理念,学习了,感谢分享

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