RIPK3:神经元细胞死亡蛋白的死池?
Clayton W Winkler1, Karin E Peterson1
1Laboratory of Neurological Infections and Immunity, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 903 S. 4th Street, Hamilton, MT 59840, USA.
Immunity
|March 12, 2025
概括
受体相互作用激酶3 (RIPK3) 调解了被编程的细胞死亡,但也保护神经元在病毒性脑炎期间的兴奋毒性,揭示了在大脑健康和疾病中的双重作用.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 受体相互作用激酶3 (RIPK3) 是已知的死细胞灭绝的调解者,是一种编程细胞死亡形式.
- 尸体亡与各种神经退行性疾病的发病有关.
研究的目的:
- 研究RIPK3在病毒性脑炎的作用.
- 探索RIPK3在亡中的作用之外的潜在保护功能.
主要方法:
- 这项研究使用了正统状病毒脑炎的模型.
- 研究了神经元死亡途径,包括兴奋毒性和亡.
- 评估了RIPK3调节对神经元存活的影响.
主要成果:
- 发现RIPK3可以防止orthoflavivirus脑炎期间的激发性神经元死亡.
- 这种保护功能与其在介导死细胞灭绝中的已知作用形成鲜明对比.
- 证明了RIPK3在神经元命运决定中的双重作用.
结论:
- 在中枢神经系统中,RIPK3表现出双重功能.
- 除了调解亡外,RIPK3还作为一种神经保护因子,对病毒性脑炎中兴奋毒性起作用.
- 突出了RIPK3在神经系统疾病中的复杂作用.
相关概念视频
Overview of Cell Death
6.1K
Cell death is an essential process where the body gets rid of old or damaged cells. Cell proliferation and death need to be balanced, as an imbalance between the two may lead to cancer or autoimmune diseases.
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
6.1K
Necrosis
3.8K
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
3.8K
Enzyme-linked Receptors
76.8K
Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
76.8K
The Extrinsic Apoptotic Pathway
5.8K
The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...
5.8K
Regulation of the Unfolded Protein Response
2.4K
Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
2.4K


