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The Study on Functions of RIP3/Substrates and RIP1 in Necrosis

Abstract

死亡受体诱导的细胞坏死是一类不依赖于caspase的生理相关的死亡方式,长久以来人们对于这种死亡方式的机制知之甚少。最近的三篇报道即为人们能够更好地理解细胞坏死信号通路建立了基础。这三篇报道揭示了RIP3和RIP1组成的坏死复合体在细胞坏死通路中扮演了至关重要的角色。但是,这一细胞坏死复合体诱导细胞坏死的具体机制却仍不清楚。 本文发现在TNF-α诱导的细胞坏死通路中,RIP3参与了两个顺序形成的蛋白复合体。首先形成的蛋白复合体由RIP3和RIP1组成,这一复合体对于随后形成的复合体是必需的。在这一复合体中,RIP3增强了RIP1的K48聚泛素化修饰,RIP1的泛素化修饰对于细胞坏死过程不是主...Death receptor induced necrosis is a physiologically relevant form of caspase independent cell death whose molecular regulation has been poorly understood for a long time. Findings recently reported make an important contribution to the understanding of necroptotic signaling by describing an essential role for RIP1/RIP3 necrosome in the decision between necropotosis and survival when apoptotic sig...学位:理学博士院系专业:生命科学学院生物学系_生物化学与分子生物学学号:2162007015382

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