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药理上抑制JAK1/2增强了氨基糖化物诱导的耳毒性
Jonathan Fleegel1, Iman Ezzat1, Sarath Viajayakumar1
1Creighton University, School of Medicine, Omaha, Nebraska.
概括
与氨基糖化物相结合的简氏激酶 (JAK) 抑制显著恶化听力损失和耳损伤. 这种耳毒性相互作用凸显了这些联合疗法患者的潜在风险.
科学领域:
- 耳毒性研究研究
- 药理学 药理学是指药理学的学科.
- 听觉神经科学 听觉神经科学
背景情况:
- 自2018年以来,雅努斯激酶 (JAK) 抑制剂的FDA批准数量增加,用于骨髓纤维化,炎症状况等.
- 扩大使用JAK抑制剂增加了患者的暴露,引发了对潜在药物相互作用的担忧.
- 与其他药物结合使用的JAK抑制剂的耳毒性潜力在很大程度上是未知的.
研究的目的:
- 为了研究Janus激酶 (JAK) 抑制和氨基糖化物之间的耳毒相互作用.
- 评估双重JAK1/JAK2抑制剂莫梅洛替尼 (MMB) 对氨基糖化物诱导的耳毒性的影响.
主要方法:
- 在C57Bl/6N小鼠中,使用甲胺 (KM) 和脂多糖 (LPS) 诱导耳毒性和炎症.
- 小鼠与KM和LPS同时接受momelotinib (MMB),以评估组合效应.
- 使用听觉脑干响应 (ABR) 和扭曲产物耳声发射 (DPOAE) 来评估听觉功能.
- 耳损伤和头发细胞损失通过法洛伊丁和肌素7a染色来评估.
主要成果:
- 莫梅洛提尼布 (MMB) 治疗显著加剧了暴露于卡纳米辛 (KM) 和脂多糖 (LPS) 的小鼠的听力损失.
- 抑制JAK1和JAK2导致耳损伤增加,如ABR,DPOAE和外毛细胞 (OHC) 计数所证明的那样.
- 与KM和LPS联合使用MMB,与单独使用KM和LPS相比,会产生更严重的耳毒性作用.
结论:
- 亚努斯酶 (JAK) 抑制,特别是momelotinib (MMB) 的抑制,加剧了氨基糖化物诱导的耳毒性.
- 结合JAK抑制剂和氨基糖化物,存在严重的耳损伤和听力损失的风险.
- 需要进一步的研究来理解和减轻这种耳毒性相互作用.
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