Expressions of endothelin-1, fibronectin, and interleukin-1α of human umbilical vein endothelial cells under prolonged culture

被引：10

作者：

Kiyonaga H. ^{[1
]}

Doi Y. ^{[2
]}

Karasaki Y. ^{[3
]}

Arashidani K. ^{[4
]}

Itoh H. ^{[1
]}

Fujimoto S. ^{[2
]}

机构：

[1] Department of Surgery, University of Occupational and Environmental Health, School of Medicine, Kitakyushu 807-8555

[2] Department of Anatomy, University of Occupational and Environmental Health, School of Medicine, Kitakyushu

[3] Department of Medical Technology 1, University of Occupational and Environmental Health, School of Health Sciences, Kitakyushu

[4] Department of Environment Management, University of Occupational and Environmental Health, School of Health Sciences, Kitakyushu

来源：

Medical Electron Microscopy | 2001年 / 34卷 / 1期

关键词：

Endothelin-1; Fibronectin; HUVEC; Interleukin-1α; Weibel-Palade body;

D O I：

10.1007/s007950100003

中图分类号：

学科分类号：

摘要：

We examined human umbilical vein endothelial cells (HUVECs) under prolonged culture by electron microscopy and by light and electron immunocytochemistry including double immunolabeling. Based on the cell area of HUVECs through multiple passages, we divided the cells into first, second, and third stages, which exhibited distinct morphological and immunocytochemical characteristics. During the first stage, HUVECs were polygonal in shape and had already formed the monolayer confluence. During the second stage, they were characterized by an increased number of Weibel-Palade (WP) bodies, which were actively segregated from Golgi cisterns. Endothelin (ET)-1 and von Willebrand factor, an endothelial cell marker, were occasionally colocalized in WP bodies. The increase in WP bodies correlated with high ET-1 concentration in the cultured medium, suggesting that these inclusions are involved in storage and release of ET-1 in a manner indicating a regulatory pathway. During the third stage, fibronectin and interleukin (IL)-1α were expressed in HUVECs as well as in multinucleated giant cells, which originated from HUVECs, but WP bodies decreased in number in association with a decrease in ET-1 immunoreactivity and concentration. The foregoing changes in immunoreactivities for ET-1, fibronectin, and IL-1α affecting HUVECs under prolonged culture may reflect a senescent process of these cells.

引用

页码：41 / 53

页数：12

共 38 条

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