NAT MED:研究揭示铲除“流氓”癌细胞,将癌症“连根拔起”的关键!

2017-05-17 sunshine2015 来宝网

研究人员已经发现了一种方法,通过使用能够识别和表征个别癌细胞的新技术以鉴定在肿瘤其余部分被破坏后能够躲过治疗继续存活的“流氓”癌细胞。



研究人员已经发现了一种方法,通过使用能够识别和表征个别癌细胞的新技术以鉴定在肿瘤其余部分被破坏后能够躲过治疗继续存活的“流氓”癌细胞

最近的突破是革命性的癌症治疗,使医生能够个性化化疗每个病人。然而,尽管这些新疗法通常是非常有效的,但是癌症也常常复发,最终导致复发。

由瑞典牛津大学和卡罗林斯卡研究所的Adam Mead教授和Sten Eirik Jacobsen教授领导的国际研究小组已经发现,通过使用新的方法,可以发现在肿瘤的其余部分被破坏后能够躲过治疗的流氓癌细胞,使他们能够识别和表征个别癌细胞

牛津大学Radcliffe医学系的Adam Mead教授说:“越来越多的人认识到,肿瘤含有多种不同的细胞类型,包括所谓的癌症干细胞,这些细胞类型会促进患者癌症的生长和复发。这些细胞在治疗后隐藏在正常组织内时可能非常罕见,非常难以找到。

“我们使用一种新的遗传技术来鉴定和分析白血病患者治疗前后的单一癌症干细胞。我们发现即使在个别的白血病病例中,也有各种类型的癌症干细胞对治疗有不同的反应。少数这些细胞对治疗具有很高的抗性,并且在停止治疗时可能导致疾病复发。我们的研究使我们能够独特地分析这些逃避治疗的关键细胞,以便我们学习如何更有效地消除这些细胞。

“这种技术可以适应于分析一系列不同的癌症,以帮助预测治疗的可能反应以及将来疾病返回的风险。这应该最终使治疗能够针对可能存在的每种类型的癌症干细胞。

针对癌症的分子靶向治疗常常引起癌症的缓解,但完全消除疾病仍然很少,患者仍然有疾病复发的风险。在细胞水平上,这可能反映了各种癌细胞之间的差异,即所谓的肿瘤内异质性,这是对治疗的这种差异反应的基础。

来自牛津Radcliffe医学系的Weatherall分子医学研究所的研究人员使用一种称为单细胞分析的技术来研究在治疗前后称为慢性骨髓性白血病(CML)的一种类型的血癌中的数千个单个癌细胞。使用这种单细胞分析技术能够识别每个亚群将是朝向每个患者定制治疗的重要步骤。

原始出处:
Alice Giustacchini, Supat Thongjuea, Nikolaos Barkas, et al. Single-cell transcriptomics uncovers distinct molecular signatures of stem cells in chronic myeloid leukemia. Nature Medicine (2017). DOI: 10.1038/nm.4336.

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    2017-08-28 heli0118
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    2017-05-19 yxch36
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    2017-05-18 ylzr123

    好文,值得点赞!认真学习了,把经验应用于实践,为患者解除病痛。

    0

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    2017-05-17 luominglian113

    学习了,谢谢分享

    0

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