Sanchez-Mirasierra Irene, Hernandez-Diaz Sergio, Ghimire Saurav, Montecinos-Oliva Carla, Soukup Sandra-Fausia
CNRS, Institut des Maladies Neurodégénératives, UMR 5293, Université de Bordeaux, Bordeaux, France.
Front Cell Dev Biol. 2021 Nov 15;9:773861. doi: 10.3389/fcell.2021.773861. eCollection 2021.
Automatic quantification of image parameters is a powerful and necessary tool to explore and analyze crucial cell biological processes. This article describes two ImageJ/Fiji automated macros to approach the analysis of synaptic autophagy and exosome release from 2D confocal images. Emerging studies point out that exosome biogenesis and autophagy share molecular and organelle components. Indeed, the crosstalk between these two processes may be relevant for brain physiology, neuronal development, and the onset/progression of neurodegenerative disorders. In this context, we describe here the macros "Autophagoquant" and "Exoquant" to assess the quantification of autophagosomes and exosomes at the neuronal presynapse of the Neuromuscular Junction (NMJ) in using confocal microscopy images. The NMJ is a valuable model for the study of synapse biology, autophagy, and exosome release. By use of Autophagoquant and Exoquant, researchers can have an unbiased, standardized, and rapid tool to analyze autophagy and exosomal release in NMJ. Code available at: https://github.com/IreneSaMi/Exoquant-Autophagoquant.
图像参数的自动定量分析是探索和分析关键细胞生物学过程的强大且必要的工具。本文介绍了两个用于分析二维共聚焦图像中突触自噬和外泌体释放的ImageJ/Fiji自动化宏程序。新兴研究指出,外泌体生物发生和自噬共享分子和细胞器成分。事实上,这两个过程之间的相互作用可能与脑生理学、神经元发育以及神经退行性疾病的发生/进展相关。在此背景下,我们在此描述宏程序“Autophagoquant”和“Exoquant”,用于利用共聚焦显微镜图像评估神经肌肉接头(NMJ)神经元突触前自噬体和外泌体的定量分析。NMJ是研究突触生物学、自噬和外泌体释放的有价值模型。通过使用Autophagoquant和Exoquant,研究人员可以获得一个无偏差、标准化且快速的工具来分析NMJ中的自噬和外泌体释放。代码可在以下网址获取:https://github.com/IreneSaMi/Exoquant-Autophagoquant 。