Fig. 1.
Immunohistochemical staining of DMT1, MTP1 and TfR in rat choroid plexus tissues. DMT1 was cytosol-distributed, much along the apical side as the arrow showed; MTP1 was diffusive in the cytoplasm and some on the brush border; and TfR was localized around nuclei in the form of clusters. None of them existed in the nucleus. Lower panel showed corresponding transmission image, indicating normal morphology of choroid plexus tissues