Multicolor multiscale brain imaging with chromatic multiphoton serial microscopy

Lamiae Abdeladim 1 Katherine Matho 1, 2, 3 Solène Clavreul 2 Pierre Mahou 1 Jean-Marc Sintes 1 Xavier Solinas 1 Ignacio Arganda-Carreras 4, 5 Stephen Turney 6 Jeff Lichtman 6 Anatole Chessel 1 Pierre Bemelmans 7 Karine Loulier 2 Willy Supatto 1 Jean Livet 2, * Emmanuel Beaurepaire 1, *
* Corresponding author
1 LOB - Laboratoire d'Optique et Biosciences
2 Institut de la Vision
3 CSHL - Cold Spring Harbor Laboratory
4 UPV/EHU - University of the Basque Country/Euskal Herriko Unibertsitatea
5 Donostia International Physics Center - DIPC (SPAIN)
6 Department of Molecular and Cellular Biology, and Center for Brain Science
7 JACOB - Institut de Biologie François JACOB
Abstract : Large-scale microscopy approaches are transforming brain imaging, but currently lack efficient multicolor contrast modalities. We introduce chromatic multiphoton serial (ChroMS) microscopy, a method integrating one-shot multicolor multiphoton excitation through wavelength mixing and serial block-face image acquisition. This approach provides organ-scale micrometric imaging of spectrally distinct fluorescent proteins and label-free nonlinear signals with constant micrometer-scale resolution and sub-micron channel registration over the entire imaged volume. We demonstrate tridimensional (3D) multicolor imaging over several cubic millimeters as well as brain-wide serial 2D multichannel imaging. We illustrate the strengths of this method through color-based 3D analysis of astrocyte morphology and contacts in the mouse cerebral cortex, tracing of individual pyramidal neurons within densely Brainbow-labeled tissue, and multiplexed whole-brain mapping of axonal projections labeled with spectrally distinct tracers. ChroMS will be an asset for multiscale and system-level studies in neuroscience and beyond.
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https://hal-polytechnique.archives-ouvertes.fr/hal-02114066
Contributor : Aurélien Arnoux <>
Submitted on : Monday, April 29, 2019 - 1:27:39 PM
Last modification on : Monday, July 8, 2019 - 2:59:27 PM

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Lamiae Abdeladim, Katherine Matho, Solène Clavreul, Pierre Mahou, Jean-Marc Sintes, et al.. Multicolor multiscale brain imaging with chromatic multiphoton serial microscopy. Nature Communications, Nature Publishing Group, 2019, 10 (1), pp.1662. ⟨https://www.nature.com/articles/s41467-019-09552-9⟩. ⟨10.1038/s41467-019-09552-9⟩. ⟨hal-02114066⟩

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