00:57Methoxy-X04 Solution Preparation and Injection
01:52Brain Sectioning Using a Vibratome
03:21Screening for the Presence of Methoxy-X04-stained Plaques
05:40Tissue Processing for Electron Microscopy
09:01Results: Visualization of Aβ Plaques in 21-month-old APP-PS1 Mice Using Light Microscopy Following Systemic Injection of the Fluorescent Dye Methoxy-X04
This article describes a protocol for visualizing amyloid Aβ plaques in Alzheimer's disease mouse models using methoxy-X04, which crosses the blood-brain barrier and selectively binds to β-pleated sheets found in dense core Aβ plaques. It allows pre-screening of plaque-containing tissue sections prior to immunostaining and processing for electron microscopy.