Thyroid-Related Protein Expression in the Human Thymus

Figure 3

Localization of NIS, TSHR, and TPO in the thymus. The expression of NIS, TSHR, and TPO is localized to the Hassall’s corpuscles (arrows and arrowheads) that are positively stained with cytokeratin. The low (a) and high (b) magnifications of the images are 100x and 400x, respectively. The scale bars represent 200 μm (a) and 50 μm (b). NIS, sodium iodide symporter; TSHR, thyroid-stimulating hormone receptor; TPO, thyroid peroxidase.

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(b)