项目名称: 受体相互作用蛋白3(RIP3)促进I型干扰素分泌的机制研究
项目编号: No.31500737
项目类型: 青年科学基金项目
立项/批准年度: 2016
项目学科: 生物科学
项目作者: 梁耀极
作者单位: 厦门大学
项目金额: 20万元
中文摘要: 2009以来,随着受体相互作用蛋白3(RIP3)介导细胞坏死信号通路的发现,跟RIP3相关的功能研究逐渐成为细胞生物学领域的研究热点。我们最近的研究发现RIP3能够显著促进I型干扰素的分泌,特别是促进双链DNA(dsDNA)诱导的I型干扰素的分泌。然而,RIP3是否参与调控DNA病毒诱导的I型干扰素的产生,并且RIP3是如何促进I型干扰素的分泌的,目前还不清楚。本项目拟通过利用CRISPR-Cas9介导的基因敲除技术构建RIP3敲除的细胞系,探讨RIP3在dsDNA和DNA病毒诱导的I型干扰素产生中的作用。我们还将进一步利用免疫沉淀(IP)和质谱联用的方法寻找RIP3的靶向分子,确定RIP3促进I型干扰素分泌的潜在分子机制。通过本项目的研究,我们将揭示RIP3除细胞坏死外的又一重要生理功能。
中文关键词: 受体相互作用蛋白3(RIP3);I型干扰素;双链DNA;DNA病毒;分子机制
英文摘要: Receptor-interacting protein 3 has been reported to be a critical molecular in necroptosis, a form of programmed necrosis, in 2009. From then on, RIP3-related research has became a hot spot in cell biology area. In our recent study, we found that RIP3 plays a critical role in promoting type I interferons (IFNs) production, especially in double-standed DNA (dsDNA) induced IFNs production. However, whether RIP3 is involed in DNA virus induced IFNs production and how RIP3 acts to promote IFNs production are still unknown. In our funding, we will take advantage of CRISPR-Cas9 mediated gene editing technique to generate RIP3 knock-out cell line, and study RIP3’s function in dsDNA and DNA virus induced IFNs production. Furthermore, we will combine immunoprecipitation and mass spectrum analysis to indentify RIP3-targeted protein(s), looking forward to unveiling the underlying molecular mechanism of RIP3’s promotion effect on IFNs production. This work will lead to a beter understanding of RIP3’s another important physiological function that, in addition to its role in necroptosis, RIP3 also plays a part in type I IFNs production.
英文关键词: Receptor-interacting protein 3 (RIP3);type I interferons;dsDNA;DNA virus;molecular mechanism