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(A and B) Cilia are expressed on the apical surfaces of Sox2 positive (green) tumor cells as shown by acetylated tubulin staining (red). (C–E) FoxJ1(red) is expressed in a subset of Sox2 (green) positive tumor cells. (A) Scale bar = 125 microns. (B) Scale bar = 25 microns. (C–E) Scale bar = 50 microns.
