NLRC5对NF-kappaB和I型干扰素信号通路进行负面调节
Jun Cui1, Liang Zhu, Xiaojun Xia
1Center for Cell and Gene Therapy, and Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, USA.
Cell
|May 4, 2010
概括
NLRC5充当免疫系统的关键车,抑制NF-kappaB和I型干扰素信号传递等关键途径. 这一发现揭示了NLRC5的存在.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 细胞信号传输 细胞信号传输
背景情况:
- 有效的宿主防御依赖于严格调节的NF-kappaB和I型干扰素通路.
- 这些关键免疫路径的负调节的分子机制在很大程度上是未知的.
研究的目的:
- 研究NLRC5在调节NF-kappaB和I型干扰素信号传递中的作用.
- 确定NLRC5作为潜在的天生的免疫的负调节者.
主要方法:
- 研究了NLRC5与IKK复合体和RIG-I/MDA5.5的相互作用.
- 利用siRNA倒置来评估NLRC5对NF-kappaB和干扰素反应的影响.
- 测量了NF-kappaB,TNF-alpha,IL-6和I型干扰素信号的激活.
主要成果:
- NLRC5直接抑制IKK复合体 (IKKalpha和IKKbeta),阻止NF-kappaB的激活.
- NLRC5与RIG-I和MDA5相互作用,抑制RLR介导的I型干扰素反应.
- 在NLRC5中,NLRC5 Knockdown增强NF-kappaB和I型干扰素的信号传递,增强抗病毒免疫力.
结论:
- NLRC5作为NF-kappaB和I型干扰素信号通路的关键负调节器.
- NLRC5在维持先天免疫的恒温控制方面发挥着重要作用.
相关概念视频
NF-κB-dependent Signaling Pathway
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-kB-dependent Signaling Pathway
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
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