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Biology
研究胰腺β细胞线粒体自噬通量的互补方法
研究胰腺β细胞线粒体自噬通量的互补方法
JoVE Journal
Biology
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JoVE Journal Biology
Complementary Approaches to Interrogate Mitophagy Flux in Pancreatic β-Cells

研究胰腺β细胞线粒体自噬通量的互补方法

Full Text
1,836 Views
07:04 min
September 15, 2023

DOI: 10.3791/65789-v

Elena Levi-D’Ancona1,2, Vaibhav Sidarala1, Scott A. Soleimanpour1,3,4

1Department of Internal Medicine, Division of Metabolism, Endocrinology and Diabetes,University of Michigan, Ann Arbor, 2Graduate Program in Immunology,University of Michigan Medical School, 3Department of Molecular and Integrative Physiology,University of Michigan, Ann Arbor, 4VA Ann Arbor Healthcare System

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Please note that some of the translations on this page are AI generated. Click here for the English version.

Summary

该协议概述了对胰腺β细胞中线粒体自噬进行定量分析的两种方法:第一种是细胞渗透性线粒体特异性染料的组合,第二种是遗传编码的线粒体自噬报告基因。这两种技术是互补的,可以根据特定需求进行部署,从而在定量解决线粒体质量控制问题时具有灵活性和精确性。

Transcript

我们的方案描述了两种互补的方法,通过流式细胞术在单细胞分辨率下研究β细胞线粒体自噬通量。mt-Keima 方案利用遗传线粒体自噬报告基因,而 MtPhagy 方案结合了三种荧光染料,这使得很容易推断到人类样本中难以转染的细胞。使用传统的生化方法和成像方法评估线粒体自噬既耗时又具有挑战性。

因此,开发新的、稳健的和有效的方法来研究β细胞中的线粒体自噬通量是很重要的。mt-Keima 和 MtPhagy 方法都是定量评估,可有效研究胰腺 β 细胞中的线粒体自噬通量。因此,Soleimanpour 实验室专注于驱动胰腺 β 细胞衰竭和糖尿病的不同机制。

我们特别关注线粒体生命周期的不同方面,包括线粒体自噬,以了解线粒体功能缺陷如何驱动糖尿病的发展。

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线粒体自噬通量 胰腺 β 细胞 互补方法 遗传报告基因 Mt-Keima 小鼠模型 定量线粒体自噬 流式细胞术 PH 敏感双激发比例探针 酸性至中性 Mt-Keima 波长发射 遗传线粒体自噬报告基因 复杂遗传小鼠模型 难以转染的细胞 原代人胰岛 基于染料的方法 MtPhagy 细胞渗透性染料 线粒体自噬过程中的溶酶体 氟青素-3-AM Zn2+ 指示剂 四甲基罗丹明乙酯 (TMRE) 线粒体膜电位

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