is expressed in unintended cell types of the salivary gland, pancreas, and spleen.

The mouse is a widely used transgenic mouse model to conditionally express Cre recombinase in astrocytes of the central nervous system. Currently, no reports show whether the Cre recombinase activity, driven by the promoter, acts in cells outside of its intended astrocyte population. We crossed the mouse with a TdTomato reporter mouse line, ROSA26:CAG-LSL-TdTomato, to generate a fluorescent reporter for promoter activity.