Sci Rep:前列腺癌细胞中线粒体代谢对阿霉素响应的调查

2017-09-13 AlexYang MedSci原创

前列腺癌(PCa)在美国是男性中主导的癌症之一。预测治疗反应实验工具的缺乏是目前治疗方案限制之一。线粒体功能的异常包括癌症中氧化磷酸化的缺失(OXPHOS),通过雕刻ROS的产生和细胞学信号抑制了细胞凋亡。因此,线粒体功能异常的修复和细胞凋亡的诱导在癌症治疗中是非常有希望的策略。最近,有研究人员利用荧光生命期成像显微镜(FLIM),通过追踪自发荧光的NAD(P)H、FAD和色氨酸(Trp)生命期和

前列腺癌(PCa)在美国是男性中主导的癌症之一。预测治疗反应实验工具的缺乏是目前治疗方案限制之一。线粒体功能的异常包括癌症中氧化磷酸化的缺失(OXPHOS),通过雕刻ROS的产生和细胞学信号抑制了细胞凋亡。因此,线粒体功能异常的修复和细胞凋亡的诱导在癌症治疗中是非常有希望的策略。最近,有研究人员利用荧光生命期成像显微镜(FLIM),通过追踪自发荧光的NAD(P)H、FAD和色氨酸(Trp)生命期和它们的酶结合部分作为标记,在抗癌药物阿霉素治疗前和治疗后,来对前列腺癌细胞中的线粒体代谢响应进行定量。研究发现,一个3通道的FLIM实验和细胞代谢标记的定量分析表明了前列腺癌细胞对阿霉素的响应,NAD(P)H平均的荧光生命期(Tm)和酶结合(a2%)部分增加,FAD酶结合(a1%)部分减少,并且基于NAD(P)H-a2%/FAD-a1% FLIM的氧化还原比和ROS增加,之后诱导了细胞凋亡。另外,研究人员首次在前列腺癌细胞中利用FRET实验展示了由于色氨酸与NAD(P)H互作而引起的色氨酸淬火,关联的能量转移效率(E%)和NAD(P)H-a2%/FAD-a1%作为预测药物响应的敏感参数。最后,

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    2017-09-15 yxch36
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    2017-09-15 1e0ece0dm09(暂无匿称)

    谢谢

    0

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    2017-09-14 Jackie Li

    学习

    0

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    2017-09-13 Y—xianghai

    学习了新知识

    0

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    2017-09-13 有备才能无患

    研究人员指出.FLIM实验的应用作为药物响应的早期预测子将会在癌症治疗中满足其中的一个重要目标.

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    2017-09-13 楠博One

    好好学习一下

    0

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