Hu Ming-Ming, Shu Hong-Bing
Medical Research Institute, Collaborative Innovation Center for Viral Immunology, School of Medicine, Wuhan University, Wuhan 430071, China.
Cell Mol Immunol. 2017 Apr;14(4):331-338. doi: 10.1038/cmi.2016.66. Epub 2017 Feb 13.
The tripartite motif-containing (TRIM) proteins represent the largest E3 ubiquitin ligase family. The multifaceted roles of TRIM38 in innate immunity and inflammation have been intensively investigated in recent years. TRIM38 is essential for cytosolic RNA or DNA sensor-mediated innate immune responses to both RNA and DNA viruses, while negatively regulating TLR3/4- and TNF/IL-1β-triggered inflammatory responses. In these processes, TRIM38 acts as an E3 ubiquitin or SUMO ligase, which targets key cellular signaling components, or as an enzymatic activity-independent regulator. This review summarizes recent advances that highlight the critical roles of TRIM38 in the regulation of proper innate immune and inflammatory responses.
含三联基序(TRIM)的蛋白质是最大的E3泛素连接酶家族。近年来,TRIM38在固有免疫和炎症中的多方面作用得到了深入研究。TRIM38对于胞质RNA或DNA传感器介导的针对RNA和DNA病毒的固有免疫反应至关重要,同时对TLR3/4和TNF/IL-1β触发的炎症反应起负调节作用。在这些过程中,TRIM38作为E3泛素或SUMO连接酶,靶向关键的细胞信号成分,或作为一种不依赖酶活性的调节因子。本综述总结了近期的进展,这些进展突出了TRIM38在调节适当的固有免疫和炎症反应中的关键作用。