Overexpression of human CUTA isoform2 enhances the cytotoxicity of copper to HeLa cells.
Author(s) -
Jingchun Yang,
Qiang Li,
Huirong Yang,
Lichong Yan,
Yang Liu,
Long Yu
Publication year - 2008
Publication title -
acta biochimica polonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.452
H-Index - 78
eISSN - 1734-154X
pISSN - 0001-527X
DOI - 10.18388/abp.2008_3089
Subject(s) - hela , copper , cytotoxicity , copper toxicity , apoptosis , microbiology and biotechnology , chemistry , toxicity , homeostasis , cell , in vitro , biochemistry , biology , organic chemistry
Copper, an essential transient element, can be toxic to cells when present in excess. Altered copper homeostasis is involved in pathological events of many diseases. Human CUTA isoform2 is a member of cation tolerance protein (CutA1) family. In this study, we examined the effect of CUTA isoform2 overexpression on copper toxicity. It was shown that overexpressed CUTA isoform2 sensitized HeLa cells to copper toxicity by promoting copper-induced apoptosis. The inhibition effect of excessive copper on cell proliferation was also enhanced by overexpressed CUTA isoform2. So CUTA isoform2 was implicated to be involved in the cytotoxicity of copper.
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