皮奥格利塔逆转了酒精诱导的膜巨细胞线粒体表型的改变
Kathryn M Crotty1,2, Shayaan A Kabir1,2, Sarah S Chang1,2
1Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, Georgia, USA.
Alcohol, clinical & experimental research
|March 18, 2024
概括
皮奥格利塔治疗减少了氧化应激,并改善了酒精使用障碍 (AUD) 影响的膜巨细胞 (AMs) 的线粒体功能. 这表明皮奥格利塔是与酒精有关的肺部疾病的潜在治疗方法.
科学领域:
- 免疫学 免疫学 免疫学
- 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:
- 酒精使用障碍 (AUD) 增加了肺炎的风险,原因是膜巨细胞 (AM) 功能受损.
- 酒精诱导氧化应激和线粒体功能障碍在AMs,损害肺免疫力.
研究的目的:
- 调查皮奥格利塔在减轻酒精诱导的AMS损伤方面的治疗潜力.
- 评估从AUD患者和动物模型中AM中pioglitazone对氧化应激和线粒体代谢的影响.
主要方法:
- 从人类AUD患者和以乙醇养的小鼠中分离出膜巨细胞 (AMs).
- 皮奥格利塔被给予ex vivo和in vivo,以评估其对AM线粒体超氧化物和HIF-1αmRNA的影响.
- 通过细胞外流量分析和金黄色葡萄球菌吸收试验,评估了线粒体呼吸和吞能力.
主要成果:
- 皮奥格利塔显著降低了AUD受试者和以乙醇养小鼠的AMs中的线粒体超氧化物和HIF-1αmRNA.
- 用皮奥格利塔治疗恢复了线粒体基质氧化灵活性,并在暴露于乙醇的AM中改善了ATP生产.
- 在体外研究证实,皮奥格利塔能抵消乙醇诱导的葡萄糖和谷氨酸氧化损害.
结论:
- 皮奥格利塔有效地逆转了酒精诱导的氧化应激,并在AMs中正常化了线粒体功能.
- 这些发现强调了利用像皮奥格利塔这样的代谢疗法准HIF-1α通路的潜力,以改善AUD患者的治疗结果.
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