Ludatscher R M
Virchows Arch B Cell Pathol. 1978 Jun 19;27(4):347-57. doi: 10.1007/BF02889006.
The ultrastructure of endothelial cytoplasmic filaments of small blood vessels from the human dermis has been described. The material consisted of biopsies from normal abdominal and thoracic skin and also from the skin of patients with urticaria pigmentosa. Most vessels were surrounded by multiple layers of basal lamina and corresponded to the small venules of the subpapillary dermis. The wall of many vessels was composed by endothelial cells with clear cytoplasm which was rich in filaments and by endothelial cells with a dense cytoplasm which was poor in filaments. Some vessels had walls composed of clear endothelial cells only. The filaments varied in diameter between 80-120 A. Curling, recoiling and whorling of cytoplasmic filaments were obvious in endothelial cells of contracted vessels. Bulging of endothelial nuclei and nuclear indentations were seen in the skin lesion of urticaria pigmentosa. The possibility that the clear endothelial cells which are rich in filaments may be more actively involved in contraction than the dense cells, is discussed.
已对人真皮小血管内皮细胞质细丝的超微结构进行了描述。材料包括取自正常腹部和胸部皮肤的活检组织，以及色素性荨麻疹患者的皮肤活检组织。大多数血管被多层基膜包围，对应于乳头下真皮的小静脉。许多血管壁由细胞质清晰且富含细丝的内皮细胞和细胞质致密且细丝较少的内皮细胞组成。一些血管的壁仅由细胞质清晰的内皮细胞组成。细丝直径在80 - 120埃之间变化。在收缩血管的内皮细胞中，细胞质细丝的卷曲、回卷和螺旋状明显可见。在色素性荨麻疹的皮肤病变中可见内皮细胞核的凸起和核凹陷。文中讨论了富含细丝的细胞质清晰的内皮细胞可能比致密细胞更积极参与收缩的可能性。
