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人类表皮的电子显微镜研究:马森氏透明细胞(树突状细胞或黑素细胞)。

Electron microscope studies of the human epidermis: the clear cell of Masson (dendritic cell or melanocyte).

作者信息

CLARK W H, HIBBS R G

出版信息

J Biophys Biochem Cytol. 1958 Nov 25;4(6):679-84. doi: 10.1083/jcb.4.6.679.

Abstract

The human epidermis has been studied by electron microscopy following osmium tetroxide and potassium permanganate fixation. An anatomically distinct cell in the human epidermis has been demonstrated with features similar to the melanocyte of the hair bulb described by Barnicot, Birbeck and Cuckow (3). It is dendritic in form and does not contain tonofilaments. "Intercellular bridges" are not formed. The mitochondria are larger and more numerous than those of other epidermal cells and the endoplasmic reticulum is more complex. Some of these cells contain melanin but others are melanin-free. The cell has been interpreted as being identical with the dopa-positive, clear cell of Masson (dendritic cell of Bloch or melanocyte). We have found that many membranous structures in the human epidermis are better preserved by permanganate fixation than by osmium tetroxide fixation.

摘要

在采用四氧化锇和高锰酸钾固定后,通过电子显微镜对人体表皮进行了研究。已证实在人体表皮中存在一种在解剖学上有明显区别的细胞,其特征与巴尼科特、伯贝克和库克奥(3)所描述的毛球黑素细胞相似。它呈树突状,不含张力细丝。不形成“细胞间桥”。其线粒体比其他表皮细胞的更大且数量更多,内质网也更复杂。这些细胞中有些含有黑色素,但有些不含黑色素。该细胞被解释为与马森的多巴阳性透明细胞(布洛赫的树突状细胞或黑素细胞)相同。我们发现,人体表皮中的许多膜性结构用高锰酸钾固定比用四氧化锇固定保存得更好。

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