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基于诱导多潜能干细胞Alport综合征的蛋白质组学研究

, PP. 133-137

Keywords: Alport综合征,多潜能干细胞,蛋白质组学,同位素标记相对和绝对定量

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Abstract:

目的筛选并鉴定Alport综合征(AS)患者与健康对照者(NC)差异性表达蛋白质,寻找AS的生物标记物。方法收集AS组与NC组的尿液,从尿液中分离尿肾脏管细胞,将尿肾脏管细胞诱导分化成多潜能干细胞(iPSCs)。运用iTRAQ技术找出两组之间差异性表达蛋白质。采用Westernblot检测差异蛋白质。结果共鉴定出12600条特有肽段序列,对应3470种非冗余蛋白质。在两组样本中发现383种蛋白质具有差异性表达,其中差异2倍以上的蛋白质有35种,包括18种上调蛋白质和17种下调蛋白质。Westernblot检测KRT14、TUBA1A、PAPSS1、UTF1、SF3B14、MTHFD2等6种差异蛋白质在各组中的表达结果与iTRAQ检测结果一致。结论筛选得到与AS发病相关的差异蛋白质,可以作为AS早期诊断和治疗的生物标记物。

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