uN2CpolyG介导的p65核封存抑制了神经元内核包容性疾病中的NF-κB-NLRP3通路
Yu Shen1, Kaiyan Jiang1, Dandan Tan1,2,3
1Department of Neurology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Yong Wai Zheng Street 17#, Nanchang, 330006, China.
Cell communication and signaling : CCS
|February 7, 2025
概括
神经内核包容性疾病 (NIID) 涉及一种蛋白质 (uN2CpolyG) 隔离一个关键的炎症调节器 (p65),抑制NF-κB-NLRP3通路并损害自. 这一发现为NIID和相关的蛋白质聚合障碍提供了一个新的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 神经内核包容性疾病 (NIID) 与NOTCH2NLC中CGG重复扩张有关,产生致病性N2CpolyG.
- 炎症与NIID有关,但分子机制尚不清楚.
- 这项研究研究了在NIID中N2CpolyG和NF-κB-NLRP3通路之间的相互作用.
研究的目的:
- 在NIID中阐明UN2CpolyG与NF-κB-NLRP3通路之间的分子相互作用.
- 确定N2CpolyG在调节炎症反应和自的作用.
- 探索在NIID中针对NF-κB途径的潜在治疗策略.
主要方法:
- 对NIID患者皮肤组织进行单细胞RNA测序,以分析炎症基因表达.
- 细胞模型 (HEK-293T,U87-MG) 通过CGG扩张载体进行传染,以研究NF-κB-NLRP3-自途径.
- 在Drosophila NIID模型中评估NF-κB激活剂.
主要成果:
- uN2CpolyG将p65捕捉到核内含中,减少p65的核转移和NF-κB活动.
- NF-κB-NLRP3通路和自被下调,由降低的p-p65和LC3II/LC3I比率证明.
- 在细胞和Drosophila模型中的LPS治疗减少了包容性和改善了表型,表明了治疗潜力.
结论:
- uN2CpolyG抑制NF-κB-NLRP3通路,并通过隔离p65.5损害自.
- 这种机制为NIID提供了一个新的治疗点.
- 这些发现可能会为使用蛋白质聚合物的其他神经退行性疾病提供见解.
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