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Nat Commun:乳腺癌精准分层新技术优于常规方法

2018-03-26 佚名 药明康德

日前,专注精准医学的Caris Life Sciences宣布其ADAPT Biotargeting系统相比标准的HER2检测,能显著更好地预测Herceptin(trastuzumab)对乳腺癌患者的治疗效果。

日前,专注精准医学的Caris Life Sciences宣布其ADAPT Biotargeting系统相比标准的HER2检测,能显著更好地预测Herceptin(trastuzumab)对乳腺癌患者的治疗效果。

这一研究的结果发表在了《Nature Communications 》上,有望用于乳腺癌患者的精准分层。

在这项研究中,研究人员先收集了治疗前的肿瘤样本,然后根据实际治疗效果,将患者分为两组,一组能从治疗中获益,另一组的治疗效果则甚微。随后,研究人员们用10^13个独特的单链DNA探针来检测两组肿瘤样本中的独特结合模式,并得到了两组探针文库,一组倾向于结合能从治疗中获益的肿瘤样本,另一组则倾向于结合治疗不起作用的肿瘤样本。

随后,研究人员们在61名独立的患者样本中进行了测试。研究表明相比常用的手段,他们开发的新方法综合特异性和灵敏度来看有显著提高。

▲新方法的灵敏度和特异性优于常规方法(图片来源:Caris Life Sciences)

“尽管目前的伴随诊断在癌症护理上取得了积极的影响,但我们做得还不够。比如说,vemurafenib在V600E突变黑色素瘤患者中的缓解率只有50%,olaparib在BRCA突变阳性的乳腺癌患者中的缓解率也只有35%,” Caris Life Sciences的首席执行官David D. Halbert先生说道:“这个研究表明我们自主的技术有望带来更优的诊断测试。”

“在HER2阳性的乳腺癌患者里,只有38%-50%的患者能从trastuzumab的治疗中获益,这体现了对于更优诊断技术的需求,” Caris Life Sciences的首席科学官David Spetzler博士说道:“这一概念验证性的试验表明ADAPT Biotargeting系统能检测出细微的遗传网络差异,比传统的HER2测试能更好地预测对trastuzumab的反应。”

我们期待这一技术能带来更精准的患者分层,无论能否从trastuzumab治疗中获益,患者都能尽早用上合适的药物。

原始出处:

Valeriy Domenyuk, Zoran Gatalica, David Spetzler, et.al. Poly-ligand profiling differentiates trastuzumab-treated breast cancer patients according to their outcomes. Nature Communications 23 March 2018

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    2018-12-23 liuli5079
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    2018-09-06 liye789132251
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    2018-03-27 owlhealth

    不错耶.学习了

    0

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    2018-03-26 Ramsey

    学习了

    0

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