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(A) NF-κB reporter expression was analyzed in the emerging mammary placodes (arrows) of IκBαΔN and littermate control embryos at E11.25. Expression of (B) Lef1 and (C) Wnt10b was detected in the mammary buds of both IκBαΔN and control embryos at E12.5 embryos. (Scale bar: 500 μm.)
