Anwar Tahira, Eskelinen Eeva-Liisa
Molecular and Integrative Biosciences Research Program, University of Helsinki, Helsinki, Finland.
Institute of Biomedicine, University of Turku, Turku, Finland.
Methods Mol Biol. 2022;2445:53-64. doi: 10.1007/978-1-0716-2071-7_4.
Since the discovery of autophagy genes and proteins in the early1990s, numerous previously unknown physiological and pathological functions have been discovered for autophagy. At the same time, precise monitoring of autophagy has become important, and western blotting and fluorescence microscopy of the marker protein LC3 is widely used for this purpose. Here, we describe a modification of the widely used method, number of LC3 dots per cell. This protocol provides the proportion of vesicular LC3 staining over the total LC3 staining in the same cell. The approach is well suitable for quantification of endogenous LC3.
自20世纪90年代初发现自噬基因和蛋白质以来,人们发现了许多自噬此前未知的生理和病理功能。与此同时,对自噬进行精确监测变得至关重要,为此,标记蛋白LC3的蛋白质印迹法和荧光显微镜检查被广泛应用。在此,我们描述了一种对广泛使用的方法——每个细胞中LC3斑点数量的改进。该方案提供了同一细胞中囊泡型LC3染色占总LC3染色的比例。该方法非常适合对内源性LC3进行定量分析。