Figure 4From: The transcription factor ATF3 acts as an oncogene in mouse mammary tumorigenesis ATF3, Ki67 and cytokeratin expression in BK5.ATF3 mammary tumors. Immunohistochemistry of representative tumors arising in BK5.ATF3 mice utilizing primary antibodies directed against ATF3 (a), Ki67 (b), CK5 (c), CK8 (d), and CK6 (e). Scale bars = 100 μm. KC, keratinaceous core; S, stroma.Back to article page