PPARγ and BRCA1 expression in DMBA-mediated mammary-derived tumours. (A) Representative immunofluorescence images illustrating expression of cell nuclei (DAPI; in blue), PPARγ or BRCA1 (in green) and cytokeratin (CK; in red), with an accompanying composite image, in mammary-derived tumours from PPARγ-WT and PPARγ-MG KO mice. All photos taken at × 600. Scale bar, 50 μm. (B) Quantification of global mean fluorescence intensity for PPARγ or BRCA1 in tumours was performed using Image Pro Plus software. **, p < 0.01.