Cell Rep:艾滋病治疗新突破,新型基因组平台建立全新HIV目标

2018-02-28 佚名 环球医学网

来自斯坦福大学的研究人员开发了首次高通量、基于基因组的成像方法来研究蛋白质的稳定性。该方法已被用于鉴定HIV降解以增强其感染过程的几种未知的人类蛋白质。该平台被称为全球阵列蛋白稳定性分析(GAPSA),能够识别驱动细胞中蛋白质的破坏的电路,并且具有广泛的应用,以鉴定用于诸如阿尔茨海默病、癌症、自身免疫性疾病和感染性疾病的全新治疗目标。这项研究今天发表在《细胞报告》中。

来自斯坦福大学的研究人员开发了首次高通量、基于基因组的成像方法来研究蛋白质的稳定性。该方法已被用于鉴定HIV降解以增强其感染过程的几种未知的人类蛋白质。该平台被称为全球阵列蛋白稳定性分析(GAPSA),能够识别驱动细胞中蛋白质的破坏的电路,并且具有广泛的应用,以鉴定用于诸如阿尔茨海默病、癌症、自身免疫性疾病和感染性疾病的全新治疗目标。这项研究发表在《细胞报告》中。

研究人员表示:“我们已经使用GAPSA来发现HIV-1辅助蛋白Vpu靶向的宿主蛋白,这是病毒复制的关键,我们选择VPU作为测试用例,因为尽管已知一些VPU目标,但我们怀疑有更多的VPU目标。事实上,GAPSA能够确定几种具有抗病毒活性的宿主蛋白,这些蛋白没有与HIV相关报道。”

VPU是针对先天免疫反应的HIV的武器,是身体对病原体的第一道防线。VPU触发了防止HIV感染的宿主蛋白的降解,从而帮助病毒克服感染和复制的障碍。

“在这项研究中,我们筛选了一组433个干扰素刺激基因(ISG),针对感染,针对VPU激活的基因,建立更全面的HIV细胞目标列表。鉴定VPU靶蛋白可为寻找阻断相互作用、潜在地保留宿主抗病毒蛋白和限制HIV感染的新药物创造机会。重要的是,该系统同样适用于其它逃避免疫系统的传染病,如埃博拉、流感等。”

“根据我们的知识,Gaspan是第一个以细胞为基础的阵列平台,用来筛选蛋白质的构建和周转。除了提供细胞工作原理的关键知识外,还可以应用该技术来鉴定特异性靶向致病蛋白的蛋白降解物,这可以为多种疾病提供新的治疗机会。

原始出处:
Prashant Jain et al, Large-Scale Arrayed Analysis of Protein Degradation Reveals Cellular Targets for HIV-1 Vpu, Cell Reports (2018). DOI: 10.1016/j.celrep.2018.01.091

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    2018-09-04 维他命
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    2019-01-27 zxxiang
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    2018-02-28 139****5926

    好好文章学习了

    0

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    2018-02-28 1ddf0692m34(暂无匿称)

    学习了.涨知识

    0

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