PLOS Genet:科学家们对食道癌的认识向前迈进了一步

2017-09-02 MedSci MedSci原创

曼彻斯特大学的科学家确定了建立食道癌细胞的一些关键因素。Andy Sharrocks教授和他的临床合作者Yeng Ang博士领导了一个团队,他们采用了一种新的方法,在人类基因组中寻找分子标记作为癌细胞的标记。这些标记能够定义食管癌的基因是如何被控制的,以及它与正常食管细胞的区别。通过使用这些信息,他们确定哪些蛋白质被激活来驱动食道癌。这项研究发表在《PLOS Genetics》杂志上,主要研究者,


曼彻斯特大学的科学家确定了建立食道癌细胞的一些关键因素。

Andy Sharrocks教授和他的临床合作者Yeng Ang博士领导了一个团队,他们采用了一种新的方法,在人类基因组中寻找分子标记作为癌细胞的标记。

这些标记能够定义食管癌的基因是如何被控制的,以及它与正常食管细胞的区别。

通过使用这些信息,他们确定哪些蛋白质被激活来驱动食道癌。

这项研究发表在《PLOS Genetics》杂志上,主要研究者,英国癌症研究中心的Ed Britton获曼彻斯特癌症研究中心(MCRC)的临床训练奖学金资助。

多亏了这项工作,该研究方向被定义为一个新的研究分支,引领靶向药物的开发。

Sharrocks教授说:"食管腺癌是一种食道癌,其存活率非常低,部分原因是它在分子水平上很难理解。如果有的话,很少有针对性的治疗方法存在。

"晚期,病人不得不忍受残酷的化疗治疗。

"多年来,我们在了解癌症方面进展甚微,因此我们相信这种方法可能是向前迈出的一大步。"

Sharrocks教授使用了一种名为ATAC-seq的革命性技术,它有可能揭示各种癌细胞的分子变化。以前,科学家只能一次分析数百万个细胞。

目前的方法主要是识别食道癌细胞中DNA编码的变化。然而,DNA被紧密的包在细胞核中,这意味着它是"绝缘的",不能被激活。

这项新技术着眼于癌症细胞中发生的变化,并对包装本身进行检查。这样就可以识别出DNA被暴露的区域,并因此具有潜在的"活性"形式。

Sharrocks教授补充道:"我们通过交叉检查,验证了这些结果,并证实了我们的发现。"

"但最重要的是,我们的研究是由数据驱动的,而不是倾向。" 在像ATAC-seq这样的方法出现之前,科学家被迫对它们的序列进行选择性分析。现在它更加科学了。

英国癌症研究中心的科学信息员凯瑟琳·皮克沃斯博士说:"通过鉴定与食道癌的发展相关的两个重要分子,这项研究揭示了癌症治疗的潜在新药物靶点。" 接下来的步骤是找出是否可以开发出针对这些分子的药物,如果它们可以用来治疗患有这种疾病的人。食管癌的生存率仍然很低,而像这样的研究,告诉我们更多关于它如何发展的,对于建立疾病的全貌至关重要。"


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    2017-12-20 cy0324
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    2018-02-03 canlab
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    2017-09-02 suibian2007bbb

    学习

    0

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    2017-09-02 明月清辉

    谢谢分享.学习了

    0

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