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Author:
Date:
2020-05-20
[Abstract] Mitochondrial dysfunction is a principal feature of acute pancreatitis (AP) although the underlying mechanisms are still unclear. AP precipitants induce Ca2+-dependent formation of the mitochondrial permeability transition pore (MPTP) in pancreatic acinar cells (PACs), leading to ATP depletion and necrosis. Evaluations of mitochondrial bioenergetics have mainly been performed in isolated PACs using confocal microscopy, with assessment of mitochondrial membrane potential, NADH/FAD+ and ATP levels, coupled with patch-clamp electrophysiology. These studies are technically demanding and time-consuming. Application of Seahorse flux analysis now allows detailed investigations of bioenergetics changes to be performed in cell populations using a multi-well plate-reader ...
[摘要] [摘要 ] 线粒体功能障碍是急性胰腺炎(AP)的主要特征,尽管其潜在机制尚不清楚。AP沉淀剂诱导胰腺腺泡细胞(PACs)中线粒体通透性过渡孔(MPTP)的Ca 2+ 依赖性形成,导致ATP耗竭和坏死。线粒体生物能学的评估主要使用共聚焦显微镜在分离的PAC中进行,评估线粒体膜电位,NADH / FAD + 和ATP水平,以及膜片钳电生理学。这些研究在技术上既费时又费力。应用范围 海马通量分析现在允许使用多孔平板阅读器格式对细胞群体中的生物能学变化进行详细研究;耗氧率(OCR)和细胞外酸化率(ECAR)分别提供有关细胞呼吸和糖酵解的重要信息。诸如最大呼吸,ATP关联容量和质子泄漏等参数可以通过应用呼吸功能“压力”测试得出,该测试涉及电子传输链的药理处理。因此,使用Seahorse Flux分析提供了一种快速,方便的方法来测量详细的细胞生物能学,并使结果与其他基于平板读取器的测定法结合使用,从而更全面地了解线粒体生物能学改变的病理生理后果。
[背景 ] 线粒体功能障碍是急性胰腺炎(AP)的核心特征,急性胰腺炎是一种使人衰弱且可能致命的疾病,目前尚无针对性的治疗方法(Criddle,2016; Habtezion ...
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