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Copper stimulates proliferation of human endothelial cells under culture
Author(s) -
Hu Guofu
Publication year - 1998
Publication title -
journal of cellular biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 165
eISSN - 1097-4644
pISSN - 0730-2312
DOI - 10.1002/(sici)1097-4644(19980601)69:3<326::aid-jcb10>3.0.co;2-a
Subject(s) - angiogenin , umbilical vein , angiogenesis , endothelial stem cell , growth factor , vascular endothelial growth factor , basic fibroblast growth factor , cell growth , chemotaxis , microbiology and biotechnology , monocyte , fibroblast growth factor , biology , medicine , endocrinology , epidermal growth factor , chemistry , cell culture , immunology , cancer research , receptor , biochemistry , in vitro , genetics , vegf receptors
Copper ions stimulate proliferation of human umbilical artery and vein endothelial cells but not human dermal fibroblasts or arterial smooth muscle cells. Incubation of human umbilical vein endothelial cells for 48 h with 500 μM CuSO 4 in a serum‐free medium in the absence of exogenous growth factors results in a twofold increase in cell number, similar to the cell number increase induced by 20 ng/ml of basic fibroblast growth factor under the same conditions. Copper‐induced proliferation of endothelial cells is not inhibited by 10% fetal bovine serum or by the presence of antibodies against a variety of angiogenic, growth, and chemotactic factors including angiogenin, fibroblast growth factors, epidermal growth factor, platelet‐derived growth factor, tumor necrosis factor‐α, transforming growth factor‐β, macrophage/monocyte chemotactic and activating factor, and macrophage inflammatory protein‐1α. Moreover, despite the previous observations that copper increased total specific binding of 125 I‐angiogenin to endothelial cells, binding to the 170 kDa receptor is not changed; hence, the mitogenic activity of angiogenin is not altered by copper. Copper‐induced proliferation, along with early reports that copper induces migration of endothelial cells, may suggest a possible mechanism for the involvement of copper in the process of angiogenesis. J. Cell. Biochem. 69:326–335, 1998. © 1998 Wiley‐Liss, Inc.