Title |
Effects of the C57BL/6 strain background on tauopathy progression in the rTg4510 mouse model
|
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Published in |
Molecular Neurodegeneration, January 2014
|
DOI | 10.1186/1750-1326-9-8 |
Pubmed ID | |
Authors |
Rachel M Bailey, John Howard, Joshua Knight, Naruhiko Sahara, Dennis W Dickson, Jada Lewis |
Abstract |
Cross-breeding of transgenic mice is commonly used to assess gene-gene interactions, particularly in the context of disease. Strain background changes can influence the phenotype of mouse models and can confound crossbreeding studies. We sought to determine if changing the strain background of a commonly used mouse model of tauopathy (rTg4510) would significantly impact the originally reported phenotype. On the original F1 FVB/N x 129S6 background, rTg4510 mice present with progressive cognitive decline, increased insoluble tau, robust tau pathology and age-dependent neurodegeneration. One of the most common strains in mouse modeling is C57BL/6. We and others have previously reported that this strain background alters the phenotypes of various models, including the JNPL3 model of tauopathy. To determine if the phenotype of rTg4510 mice was similarly affected by the introduction of the C57BL/6 background, we compared rTg4510 mice on the original F1 FVB/N x 129S6 background to rTg4510 mice on an F1 FVB/N x C57BL/6NTac (B6/NTac) background, herein termed rTg4510B6. |
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