Morphological study of embryonic Chd8+/- mouse brains using light-sheet microscopy
| Autor: | Gómez, Harold F., Hodel, Leonie, Michos, Odyssé, Iber, Dagmar |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | bioRxiv |
| DOI: | 10.3929/ethz-b-000445032 |
| Popis: | Objective: Autism spectrum disorder (ASD) encompasses a group of neurodevelopmental conditions that remain poorly understood due to their genetic complexity. CHD8 is a risk allele strongly associated with ASD, and heterozygous Chd8 loss-of-function mice have been reported to exhibit macrocephaly in early postnatal stages. In this work, we sought to identify measurable brain alterations in early embryonic development. Results: We performed light-sheet fluorescence microscopy imaging of N-cadherin stained and optically cleared Chd8+/- and wild-type mouse brains at embryonic day 12.5 (E12.5). We report a detailed morphometric characterization of embryonic brain shapes and cortical neuroepithelial apical architecture. While Chd8+/- characteristic expansion of the forebrain and midbrain was not observed this early in embryogenesis, a tendency for a decreased lateral ventricular sphericity and an increased intraocular distance in Chd8+/- brains was found compared to controls. This study advocates the use of high-resolution microscopy technologies and multi-scale morphometric analyses of target brain regions to explore the etiology and cellular basis of Chd8 haploinsufficiency. bioRxiv |
| Databáze: | OpenAIRE |
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