Brit J Cancer:SLC2A3介导的维生素C摄取减少会促进白血病的发生发展

2020-03-23 QQY MedSci原创

维生素C是一种能够参与表观遗传重塑的新型肿瘤代谢抑制剂,并提出其可以作为治疗白血病的潜在治疗策略。维生素C是TET酶(Tet甲基胞嘧啶双加氧酶)的辅因子,其可以调节TET的活性。

近期研究表明,维生素C是一种能够参与表观遗传重塑的新型肿瘤代谢抑制剂,并提出其可以作为治疗白血病的潜在治疗策略。维生素C是TET酶(Tet甲基胞嘧啶双加氧酶)的辅因子,其可以调节TET的活性,改变DNA甲基化修饰状态进而抑制白细胞的生成。在急性髓性白血病(AML)患者中,维生素C所起的有益作用目前仍存在争议。

该研究旨在确定维生素C治疗的AML中的潜在的生物学标志物。
 
研究人员通过TCGA数据库及TARGET数据库分析AML患者中的基因表达图谱及其与疾病存活率的相关性。研究人员发现在白血病母细胞中,SLC2A3的表达水平明显降低。
 
低于中间值的SLC2A3表达水平与较差的疾病总体生存率相关。SLC2A3的低表达水平对应着较差的去甲基作用,并且对应AML及淋巴瘤细胞系中维生素C作用的减弱。在KG-1细胞系中敲低SLC2A3水平降低了细胞对维生素C的响应。在患者来源的原代AML细胞中表达SLC2A3,维生素C仅能够恢复了TET2的活性。

综上研究表明,SLC2A3可作为预测维生素C治疗AML效果的潜在生物标志物。

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    2020-10-05 刘军1991

    谢谢分享

    0

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    2020-03-26 飛歌

    学习了很有用不錯

    0

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    2020-03-24 1209e435m98(暂无昵称)

    学习了,谢谢分享

    0

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    2020-03-23 天地飞扬

    学习

    0

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