Cancer Discovery :基因调控的改变使胃癌细胞发生免疫逃逸

2017-10-19 MedSci MedSci原创

A*STAR研究人员的新研究发现,胃癌细胞通过基因调控的改变来帮助其逃避免疫系统。这种机制可能适用于广泛的癌症,并可以被用来改善癌症治疗。胃癌是最常见和最致命的疾病之一,治疗方法有限。胃癌的影响意味着其遗传学已被广泛研究。来自A*STAR生物医学研究委员会的Patrick Tan,和一个国际研究小组通过研究基因启动子的变异提供了新的见解。基因启动子是调控基因表达的DNA成分。新加坡A * STAR

A*STAR研究人员的新研究发现,胃癌细胞通过基因调控的改变来帮助其逃避免疫系统。这种机制可能适用于广泛的癌症,并可以被用来改善癌症治疗。胃癌是最常见和最致命的疾病之一,治疗方法有限。胃癌的影响意味着其遗传学已被广泛研究。来自A*STAR生物医学研究委员会的Patrick Tan,和一个国际研究小组通过研究基因启动子的变异提供了新的见解。基因启动子是调控基因表达的DNA成分。新加坡A * STAR基因组研究所的Aditi Qamra博士是研究的主要负责人,他说:"启动子是基因开启或关闭的多方面开关,调节基因表达量和控制基因的输出。"人体中超过一半的基因受多个启动子控制,癌细胞通常使用异常启动子来驱动恶性肿瘤。我们想确定哪些启动子在胃癌细胞中被异常激活或沉默。"研究人员使用了一种名为Nano-ChIP-Seq的技术,该技术使用分子标签对DNA分子包裹的组蛋白 - 蛋白质进行定位和鉴定活性基因启动子。将胃癌细胞中的活性启动子与健康胃细胞中的活性启动子进行比较,使得能够鉴定出在胃癌中改变的近2000个启动子。启动子的改变不仅赋予癌细胞特性,而且减少了肿瘤细胞中蛋白质的表达,从而使免疫系统能够

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    2018-07-04 yahu
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    2017-10-21 yxch36
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    2017-10-21 yankaienglish
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    2017-10-20 微分

    学习了.谢谢.

    0

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    2017-10-19 惠映实验室

    学习了.谢谢.

    0

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    2017-10-19 有备才能无患

    A*STAR研究人员的新研究发现.胃癌细胞通过基因调控的改变来帮助其逃避免疫系统.这种机制可能适用于广泛的癌症.并可以被用来改善癌症治疗.

    0

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