Journal: bioRxiv
Article Title: O-GlcNAc Transferase Regulates GABAergic Synapse Organization and Receptor Composition
doi: 10.1101/2025.11.21.689700
Figure Lengend Snippet: A . Representative 3D-rendered dendritic segment illustrating how vGAT and gephyrin puncta were categorized for analysis, including colocalized, non-colocalized, and overlapped populations. B. Representative images of cultured hippocampal neurons transfected at DIV7 with expressing GFP alone (Control) or co-expressing GFP with OGT (OGT overexpression). Neurons were analyzed by triple immunofluorescence labeling for GFP (yellow), gephyrin (lilac), and vGAT (green). Scale bar, 5 μm (applies to all images). C. Quantification graphs of the effects of OGT overexpression in neurons on intensity, and size of gephyrin or vGAT puncta (Total, non-colocalization). D. Quantification of inhibitory synapse number (gephyrin and vGAT puncta) showing no significant changes following OGT deletion. E. Quantification of overlapped volume gephyrin and vGAT puncta, showing a significant increase in OGT overexpression neurons. Data are presented as S.E.M (*P < 0.05, **P < 0.01, ***P < 0.001; unpaired Student’s t test).
Article Snippet: Upon overexpressing OGT in sparse neurons, inhibitory synapses terminating on the overexpressed neuron were identified using 3D Imaris reconstruction software by measuring vGAT and gephyrin puncta intensity, size and number.
Techniques: Cell Culture, Transfection, Expressing, Control, Over Expression, Immunofluorescence, Labeling