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抗生素诱导的线粒体功能障碍:探索对HEI-OC1细胞和外围血液单核细胞的组织特异性影响
Tianshi Liu1, Imen Chamkha1, Eskil Elmér2
1Mitochondrial Medicine, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.
Biochimica et biophysica acta. General subjects
|June 13, 2025
概括
抗生素可以通过破坏线粒体功能来损害内耳细胞,导致ATP减少和活性氧物种 (ROS) 增加. 然而,人类血细胞没有显示出这种抗生素诱导的线粒体毒性.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 抗生素对于治疗感染至关重要,特别是在重症监护病房.
- 抗生素诱导的耳毒性是一个重大问题,可能与线粒体损伤有关,原因是细菌和线粒体成分之间的相似性.
- 了解线粒体上抗生素毒性的特定机制对于患者的安全至关重要.
研究的目的:
- 研究五大类抗生素对内耳上皮细胞和人体血液细胞中线粒体功能的影响.
- 为了确定抗生素是否影响线粒体呼吸,ATP生产,膜潜力和反应性氧物种 (ROS) 生成.
- 为了阐明抗生素诱导的线粒体功能障碍的机制.
主要方法:
- 使用了HEI-OC1 (内耳上皮) 和PBMCs (人体初级血液) 细胞系.
- 评估了线粒体呼吸,ATP生产,线粒体膜潜力和ROS生成.
- 在临床上相关的度下测试了卡巴,诺基诺,氨基甘油,糖和氧利丁.
主要成果:
- 大多数测试的抗生素在完整的HEI-OC1细胞中抑制了线粒体呼吸.
- 在透细胞中没有观察到这种抑制,这表明该效应是在呼吸链的上游.
- HEI-OC1细胞表现出ROS产量增加和ATP水平降低,而PBMCs没有表现出线粒体功能障碍.
- 毒性的机制涉及线粒体呼吸链上游的影响.
结论:
- HEI-OC1细胞对广泛的抗生素敏感,显示出显著的线粒体功能障碍.
- 这些细胞中的抗生素毒性会影响线粒体呼吸,ATP水平和ROS生成.
- 人类血液细胞 (PBMC) 不会受到相同的抗生素度的影响,这表明细胞特异性敏感性.
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