High-resolution imaging of fluorescent whole mouse brains using stabilised organic media (sDISCO)

doi:10.1002/jbio.201800368

Editorial

. 2019 Aug;12(8):e201800368.

doi: 10.1002/jbio.201800368. Epub 2019 Apr 29.

High-resolution imaging of fluorescent whole mouse brains using stabilised organic media (sDISCO)

Christian Hahn^{1

2

3}, Klaus Becker^{1

2}, Saiedeh Saghafi^{1

2}, Marko Pende^{1

2}, Alma Avdibašić², Massih Foroughipour^{1

2}, Daniel E Heinz⁴, Carsten T Wotjak⁴, Hans-Ulrich Dodt^{1

2}

Affiliations

¹ Department of Bioelectronics, FKE, Vienna University of Technology, Vienna, Austria.
² Center for Brain Research, Medical University of Vienna, Vienna, Austria.
³ Institute for Neuropathology, University Medical Center Göttingen, Göttingen, Germany.
⁴ Department of Neuronal Plasticity, Max Planck Institute of Psychiatry, Munich, Germany.

PMID: 30932329
DOI: 10.1002/jbio.201800368

Editorial

High-resolution imaging of fluorescent whole mouse brains using stabilised organic media (sDISCO)

Christian Hahn et al. J Biophotonics. 2019 Aug.

. 2019 Aug;12(8):e201800368.

doi: 10.1002/jbio.201800368. Epub 2019 Apr 29.

Authors

Affiliations

¹ Department of Bioelectronics, FKE, Vienna University of Technology, Vienna, Austria.
² Center for Brain Research, Medical University of Vienna, Vienna, Austria.
³ Institute for Neuropathology, University Medical Center Göttingen, Göttingen, Germany.
⁴ Department of Neuronal Plasticity, Max Planck Institute of Psychiatry, Munich, Germany.

PMID: 30932329
DOI: 10.1002/jbio.201800368

Abstract

Optical tissue clearing using dibenzyl ether (DBE) or BABB (1 part benzyl alcohol and 2 parts benzyl benzoate) is easy in application and allows deep-tissue imaging of a wide range of specimens. However, in both substances, optical clearing and storage times of enhanced green fluorescent protein (EGFP)-expressing specimens are limited due to the continuous formation of peroxides and aldehydes, which severely quench fluorescence. Stabilisation of purified DBE or BABB by addition of the antioxidant propyl gallate efficiently preserves fluorescence signals in EGFP-expressing samples for more than a year. This enables longer clearing times and improved tissue transparency with higher fluorescence signal intensity. The here introduced clearing protocol termed stabilised DISCO allows to image spines in a whole mouse brain and to detect faint changes in the activity-dependent expression pattern of tdTomato.

Keywords: EGFP; fluorescence stabilisation; light-sheet microscopy; mouse brain; optical tissue clearing; ultramicroscopy; whole-tissue imaging.

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High-resolution imaging of fluorescent whole mouse brains using stabilised organic media (sDISCO)

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High-resolution imaging of fluorescent whole mouse brains using stabilised organic media (sDISCO)

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