综合性毒理学和蛋白质组学网络确定了 gentamicin 诱导的耳毒性的主要途径
Runnan Han1, Ning Yu2, Lin Shi1
1Department of Otorhinolaryngology, The First Hospital of Dalian Medical University, No.222 Zhongshan Road, Dalian 116011, China.
Hearing research
|March 2, 2026
概括
抗生素珍塔因损害内耳毛细胞而引起耳毒性. 这项研究确定了关键的分子途径和蛋白质变化,为早期检测和干预提供了潜在的生物标志物.
科学领域:
- 耳毒性研究研究
- 分子毒理学分子毒理学
- 发现生物标志物的发现.
背景情况:
- 甘胺素 (GEN) 是一种重要的抗生素,但会引起耳毒性,导致不可逆转的内耳毛细胞亡和感觉功能丧失.
- 没有完全理解 gentamicin 诱导的耳毒性的精确分子机制,这阻碍了早期检测和治疗.
- 目前的知识差距限制了开发有效的早期预警指标和治疗目标的 gentamicin 耳毒性.
研究的目的:
- 为了阐明基因的多维分子机制 gentamicin 诱导的耳毒性.
- 确定潜在的治疗点和临床应用的早期预警生物标志物.
- 为了全面理解,将计算预测与实验验证相结合.
主要方法:
- 利用集成计算预测 (网络毒理学) 和动物实验验证.
- 进行蛋白质组分析,以确定 gentamicin 暴露后蛋白质表达的变化.
- 分析了与耳毒性有关的信号通路 (HIF-1,PI3K-Akt,FoxO) 和细胞过程 (自).
主要成果:
- 计算预测表明,珍塔素通过HIF-1,PI3K-Akt和自等途径破坏内耳平衡.
- 蛋白质组学证实了广泛的蛋白质表达变化,包括无素蛋白质酶体系统激活,自失调和补充介导炎症.
- 确定了核心点 (Pten,Stat3) 和关键途径 (补充和凝血级联,能量代谢,PI3K-Akt信号传递),有助于前庭毛细胞损伤.
结论:
- 甘胺的中毒性涉及结构损伤,代谢干扰和前庭毛细胞中免疫激活的复杂网络.
- 确定了核心目标和途径,为未来的功能验证和治疗策略提供了途径.
- 早期差异表达蛋白质显示出作为临床耳毒性监测液体活检生物标志物的前景.
相关概念视频
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