Correr S, Motta P M
Experientia. 1985 May 15;41(5):617-20. doi: 10.1007/BF02007686.
An unusual cell type consisting of free elements widely scattered over the marginal epithelium of the rat pituitary cleft is revealed by SEM. Most of these supramarginal cells characteristically have irregularly shaped cell bodies from which thin branched processes extend. Supramarginal cells bear resemblances to Kolmer (epiplexus) cells and to supraependymal cells of the brain ventricles. Their ultrastructural features make it probable that supramarginal cells are phagocytes, and can be regarded as scavengers of the cleft. Considering the close topographical association between the hypophysial cleft and the floor or the 3rd ventricle, supramarginal cells may be members of the motile macrophagic Kolmer cells populating the ventricular surfaces of the brain.
扫描电子显微镜显示，在大鼠垂体裂边缘上皮广泛散在分布着一种由游离细胞组成的特殊细胞类型。这些边缘上细胞大多具有特征性的不规则形状的细胞体，从细胞体伸出细的分支突起。边缘上细胞与科尔默（室管膜上）细胞以及脑室的室管膜上细胞相似。它们的超微结构特征表明边缘上细胞可能是吞噬细胞，可被视为垂体裂的清道夫。鉴于垂体裂与第三脑室底部在解剖位置上的紧密联系，边缘上细胞可能是分布于脑室表面的游走性巨噬细胞——科尔默细胞的成员。
