通过与ERN1的相互作用,DDX3X促进了内细胞网膜蛋白质的重编程,以放大大脑缺血症/再输液损伤
QiaoHui Du1, YuQian Liu1, JingLong Guo2
1Health Management Center, Shandong Provincial Qianfoshan Hospital, The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, Shandong, China.
European journal of medical research
|July 2, 2025
概括
死亡盒螺旋酶3,X链接 (DDX3X) 与内分泌网膜对核信号1 (ERN1) 相互作用,通过增加亡,内分泌网膜应激和炎症,加剧大脑缺血/反损伤.
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
- 细胞生物学 细胞生物学
背景情况:
- 大脑缺血/再注血 (I/R) 损伤是再注血治疗的重要并发症.
- 在大脑I/R损伤中,DEAD-box螺旋酶3,X-linked (DDX3X) 和内分泌网膜到核信号1 (ERN1) 的作用尚不清楚.
研究的目的:
- 研究DDX3X和ERN1在脑I/R损伤中的作用.
- 阐明它们参与I/R诱导的大脑损伤的分子机制.
主要方法:
- 在大鼠中使用中脑动脉封闭 (MCAO) 和PC12细胞中使用氧气-葡萄糖剥夺/再氧化 (OGD/R) 建立了脑I/R损伤模型.
- 西方涂抹,免疫组织化学和共免疫沉被用于评估蛋白质表达和相互作用.
- 细胞活力,细胞亡,细胞内网膜压力 (ERS) 标志物和促炎性细胞因子被量化.
主要成果:
- 在脑I/R损伤的细胞和动物模型中,DDX3X和ERN1都显著上调.
- DDX3X积极调节ERN1表达,导致亡,ERS,氧化应激和炎症的增加.
- DDX3X和ERN1之间的相互作用加剧了大脑损伤.
结论:
- DDX3X通过与ERN1.1相互作用来增强大脑I/R损伤.
- 这种相互作用会触发细胞内网膜蛋白质反应,放大ERS,亡和炎症.
- 针对DDX3X-ERN1相互作用可能为大脑I/R损伤提供治疗策略.
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