Combined expansion and STED microscopy reveals fingerprints of synaptic nanostructure across brain regions and in ASD-related SHANK3 deficiency
Jan Philipp Delling, Helen Friedericke Bauer, Susanne Gerlach-Arbeiter, Michael Schön, Christian Jacob, Jan Wagner, Maria Teresa Pedro, Bernd Knöll, Tobias M. Böckers · FENS Forum 2024
Synaptic dysfunction is a key feature of SHANK-associated disorders such as autism spectrum disorder, schizophrenia, and Phelan-McDermid syndrome. Since detailed knowledge of their effect on synaptic nanostructure remains limited, we investigated such alterations in ex11|SH3 SHANK3-KO mice combining expansion (ExM) and STED microscopy. This enabled high-resolution imaging of mosaic-like arrangements formed by synaptic proteins. We found distinct shape-profiles as fingerprints of the murine postsynaptic scaffold across brain regions and genotypes, as well as alterations in the spatial and molec
ePoster · Neuroscience