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Up-regulation of B7.2 expression on dendritic cells (DC) after 2,4-dinitrofluorobenzene (DNFB) application onto the buccal mucosa. Cryostat sections (5 μm thick) from the buccal mucosa of C57Bl/6 mice either untreated (a,b), or 2 h (c,d) or 24 h (e,f) after buccal sensitization with DNFB were stained for MHC class II (CD311) (a,c,e) or B7.2 (CD86, clone GL1) (b,d,f) molecule expression. Sections were counterstained with Harris haematoxylin. (Final mag. × 400.)
