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MAGIC: A label-free fluorescence method for 3D high-resolution reconstruction of myelinated fibers in large volumes

Costantini, I.; Baria, E.; Sorelli, M.; Matuschke, F.; Giardini, F.; Menzel, M.; Mazzamuto, G.; Silvestri, L.; Cicchi, R.; Amunts, K.; Axer, M.; Pavone, F. S.

2020-07-29 neuroscience
10.1101/2020.07.28.225011 bioRxiv
Show abstract

Analyzing the structure of neuronal fibers with single axon resolution, in large volumes, remains an unresolved challenge in connectomics. Here, we propose MAGIC (Myelin Autofluorescence imaging by Glycerol Induced Contrast enhancement), a simple tissue preparation method to perform label-free fluorescence imaging of myelinated fibers. We demonstrate its broad applicability by performing mesoscopic reconstruction at sub-micron resolution of mouse, rat, monkey, and human brain samples and by quantifying the different fiber organization in Control and Reeler mouses hippocampal sections.

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