Fig. 1. Expression of CD11b and CD11c in normal mouse thyroid. Thyroid tissues from normal healthy mice have significantly more CD11b⁺ than CD11c⁺ cells as determined by the reactivity of PE-anti-CD11b and PE-anti-CD11c mAbs. Reactivity of PE-labeled control antibody to mouse thyroid tissue sections is shown, and the location of some thyroid follicles are indicated (f). Note the high density of CD11b⁺ cells with typical dendritic cell morphology in four sections from the same thyroid, and the sparse number of CD11c⁺ cells in that tissue. Sections are from the thyroid from one BALB/c mouse, but were typical of four mice examined.