抽象的
用于分析蛋白质量化和降解的新技术为疾病诊断提供了新的见解,并理解自身免疫,癌症,神经变性等疾病的分子基础。相关的研究结果发表于自然界生物技术。
If we desire to figure out how the cells in our body work, or why they can not make the function in the case of disease, then we may need to cross the genes, even across the proteins they make, and start scrutinizing the ‘garbage’ in the cells.
来自Weizmann科学研究所的科学家Yifat Merbl博士开发了一种新的技术 - 蜂窝垃圾箱潜水,发现包含与细胞功能相关的多个信息。研究人员在这种方法中分析了自身免疫疾病患者的免疫细胞,从而发现了了解疾病的潜在原因和开发更好的诊断方法的新方法。
通过蛋白酶体分解了近70%的蛋白质,包括例如对特定靶标的短寿命的蛋白质,例如,产生免疫应答。'Compared to structural proteins, these proteins may be produced in small quantities through strict regulation and rapid degradation, that’s why the standard proteomics methods often ignore them,’ Merbl said, ‘But they are precisely proteins that are critical to cell function as their dysfunction plays an important role in many diseases. ‘
她补充说,'目前的蛋白质组学可以通过观察他们的年龄,烹饪品味或者是否喜欢阅读,产生细胞中表达的蛋白质的详细列表,这就像了解人的生活方式一样。并且了解他们的垃圾可以了解他们吃的东西,他们所采取的东西,他们买的是什么,以及他们旅行的地方。同样,当我们观察细胞废物时,我们还可以根据细胞活性水平和蛋白质活性描述疾病状态,并揭示这些细胞的问题。
该研究成功的关键是该技术由团队开发的技术从细胞中分离蛋白酶体。研究人员从狼疮患者的白细胞和健康对照中取出了蛋白酶,然后小心地取出了肽。这质谱然后用于筛选并比较两组丢弃的肽曲线。研究团队命名为此方法MAPP(蛋白水解肽的质谱分析)。
'One of the main advantages of this system is that it allows us to extract information about abnormal processes in cells, even from very small amounts of biological material, which makes it can be applied clinically,’ said Hila Wolf-Levy, first author of this study.
