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活心肌细胞中 Mitoflashes 的成像方案。

Protocol for Imaging of Mitoflashes in Live Cardiomyocytes.

机构信息

Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.

Department of Pharmacy, Shanghai East Hospital, Tongji University, Shanghai 200120, China.

出版信息

STAR Protoc. 2020 Sep 3;1(2):100101. doi: 10.1016/j.xpro.2020.100101. eCollection 2020 Sep 18.

DOI:10.1016/j.xpro.2020.100101
PMID:33111128
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7580095/
Abstract

We describe a protocol for imaging a mitochondrial fluorescence transient increase event (Mitoflash) in live cardiomyocytes using a confocal microscope. Mitoflash, detected by mitochondria-targeted circularly permuted fluorescent protein (mt-cpYFP), can be used to assess mitochondrial respiration function . The protocol is also suitable for live-cell imaging of other adherent cells, including fibroblasts and hepatocytes. For complete details on the use and execution of this protocol, please refer to Gong et al. (2014) and Gong et al. (2015).

摘要

我们描述了一种使用共聚焦显微镜在活心肌细胞中成像线粒体荧光瞬变增加事件(Mitoflash)的方案。Mitoflash 通过线粒体靶向的环状排列荧光蛋白(mt-cpYFP)检测,可以用于评估线粒体呼吸功能。该方案也适用于其他贴壁细胞的活细胞成像,包括成纤维细胞和肝细胞。有关此方案使用和执行的完整详细信息,请参阅 Gong 等人(2014 年)和 Gong 等人(2015 年)。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/cc5c48c23282/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/e529e5c614d7/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/bd32f626093c/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/b5a647dc7bf0/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/0cdb776e8721/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/d8fdbba670e9/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/1272fbb7617a/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/97204c26fa67/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/0d1424a699a5/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/cc5c48c23282/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/e529e5c614d7/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/bd32f626093c/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/b5a647dc7bf0/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/0cdb776e8721/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/d8fdbba670e9/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/1272fbb7617a/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/97204c26fa67/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/0d1424a699a5/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b446/7580095/cc5c48c23282/gr8.jpg

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本文引用的文献

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Protocol for Isolation of Viable Adult Rat Cardiomyocytes with High Yield.高产量分离成年大鼠心肌细胞的方案。
STAR Protoc. 2020 Jun 9;1(2):100045. doi: 10.1016/j.xpro.2020.100045. eCollection 2020 Sep 18.
2
Comparative study on isolation and mitochondrial function of adult mouse and rat cardiomyocytes.成年鼠心肌细胞与心肌细胞的分离及线粒体功能的比较研究。
J Mol Cell Cardiol. 2019 Nov;136:64-71. doi: 10.1016/j.yjmcc.2019.09.006. Epub 2019 Sep 12.
3
Mitoflash biogenesis and its role in the autoregulation of mitochondrial proton electrochemical potential.
线粒体荧光素生物发生及其在质子电化学势自动调节中的作用。
J Gen Physiol. 2019 Jun 3;151(6):727-737. doi: 10.1085/jgp.201812176. Epub 2019 Mar 15.
4
Mitochondrial Flash: Integrative Reactive Oxygen Species and pH Signals in Cell and Organelle Biology.线粒体闪烁:细胞与细胞器生物学中的活性氧与pH信号整合
Antioxid Redox Signal. 2016 Sep 20;25(9):534-49. doi: 10.1089/ars.2016.6739. Epub 2016 Jul 14.
5
Mitochondrial flash as a novel biomarker of mitochondrial respiration in the heart.线粒体闪烁作为心脏线粒体呼吸的一种新型生物标志物。
Am J Physiol Heart Circ Physiol. 2015 Oct;309(7):H1166-77. doi: 10.1152/ajpheart.00462.2015. Epub 2015 Aug 14.
6
Regulation of metabolism in individual mitochondria during excitation-contraction coupling.兴奋-收缩偶联过程中单个线粒体的代谢调节。
J Mol Cell Cardiol. 2014 Nov;76:235-46. doi: 10.1016/j.yjmcc.2014.09.012. Epub 2014 Sep 22.
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Mitochondria-targeted cpYFP: pH or superoxide sensor?线粒体靶向的cpYFP:pH值还是超氧化物传感器?
J Gen Physiol. 2012 Nov;140(5):567-70. doi: 10.1085/jgp.201210863. Epub 2012 Oct 15.
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Superoxide flashes reveal novel properties of mitochondrial reactive oxygen species excitability in cardiomyocytes.超氧阴离子闪光揭示了心肌细胞中线粒体活性氧物种激活性的新特性。
Biophys J. 2012 Mar 7;102(5):1011-21. doi: 10.1016/j.bpj.2012.01.044. Epub 2012 Mar 6.
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Superoxide flashes in single mitochondria.单个线粒体中的超氧阴离子闪烁
Cell. 2008 Jul 25;134(2):279-90. doi: 10.1016/j.cell.2008.06.017.
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Cultured adult cardiac myocytes: future applications, culture methods, morphological and electrophysiological properties.培养的成年心肌细胞:未来应用、培养方法、形态学和电生理特性
Cardiovasc Res. 1998 Aug;39(2):280-300. doi: 10.1016/s0008-6363(98)00128-x.