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MIRAVA POLYSCOPE – All in one and on for all: the perfect image
Science beyond Barriers

abberior instruments

Neurobiology

2023
Neuroscience Letters

The murine ortholog of Kaufman oculocerebrofacial syndrome gene Ube3b is crucial for the maintenance of the excitatory synapses in the young adult stage

Authors:

Saki Katsube, Noriko Koganezawa, Kenji Hanamura, Katherine J Cuthill, Victor Tarabykin, Mateusz C Ambrozkiewicz, Hiroshi Kawabe

Keywords:

Excitatory Synapses

Abstract:

Kaufman oculocerebrofacial syndrome (KOS) is an autosomal recessive developmental disorder. Inactivating mutations in UBE3B, an E3 ubiquitin ligase gene are causative for KOS. We have reported that towards postnatal week three, its murine ortholog, Ube3b, acts as a negative regulator of the number of dendritic spines. In this study, we investigated the role of Ube3b at the synapse in the young adult mice. With an improved estimation method, images from the hippocampal CA1 and CA2 regions acquired with 3D Stimulated Emission Depletion (3D-STED) microscopy were used to quantify the excitatory synapse numbers. In the young adult mice, the excitatory synapse density was decreased in brain-specific Ube3b conditional knockout mice as compared to the control. Our results indicate the novel role of Ube3b in the maintenance of synapse numbers in the young adult period.

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Superresolution & Confocal Systems

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Superresolution & Confocal Modules

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  • MINFLUX Module
  • MATRIX Detector
  • TIMEBOW Imaging
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