Journal
BRAIN RESEARCH
Volume 1128, Issue 1, Pages 40-49Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.brainres.2006.05.050
Keywords
fluoro-Jade (R) B; microglia; astrocyte; mouse transgenic model; Alzheimer's disease; chronic neuronal death
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Fluoro-jade B is known as a high affinity fluorescent marker for the localization of neuronal degeneration during acute neuronal distress. However, one study suggested that fluoro-jade (R) B stains reactive astroglia in the primate cerebral cortex. In this study, we analyzed the staining of fluoro-Jade (R) B alone or combined with specific markers for detection of glial fibrillary acidic protein (GFAP) or activated CD68 microglia in the double APP(SL)/PSI KI transgenic mice of Alzheimer's disease (AD), which display a massive neuronal loss in the CAI region of the hippocampus. Our results showed that fluoro-Jade (R) B did not stain normal and degenerating neurons in this double mouse transgenic model. Fluoro-Jade (R) B was colocalized with A( in the core of amyloid deposits and in glia-like cells expressing A. Furthermore, fluoro-Jade (R) B was co-localized with CD68/macrosialin, a specific marker of activated microglia, and with GFAP for astrocytes in APP(SL)/PS1 KI transgenic mice of AD. Taken together, these findings showed that fluoro-Jade (R) B can be used to label activated microglia and astrocytes which are abundant in the brain of these AD transgenic mice. It could stain degenerating neurons as a result of acute insult while it could label activated microglia and astrocytes during a chronic neuronal degenerative process such as AD for example. (c) 2006 Elsevier B.V. All rights reserved.
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