RRC ID 44126
著者 Kimura T, Yoshida K, Yamamoto C, Suzuki M, Uno T, Isobe M, Naka H, Yasuike S, Satoh M, Kaji T, Uchiyama M.
タイトル Bis(L-cysteinato)zincate(lI) as a coordination compound that induces metallothionein gene transcription without inducing cell-stress-related gene transcription.
ジャーナル J Inorg Biochem
Abstract Zinc is an essential micronutrient, deficiency of which results in growth retardation, immunodeficiency, and neurological diseases such as dysgeusia. Several zinc coordination compounds are used for zinc supplementation; however, supplemented zinc ions have no specificity and interact with various groups of molecules. Here, we found that, from a library of 30 zinc coordination compounds, bis(L-cysteinato)zincate(II), designated Z01, functioned as a metallothionein (MT) inducer. Z01 induced MT expression mediated by the transcription factor MTF-1, without inducing cell-stress-related heme oxygenase-1 gene expression at specific concentration. The zinc ion was necessary for the MT induction. (65)Zn incorporation following treatment with (65)Zn-labeled Z01 suggested that Z01 did not act as zinc ionophore despite its hydrophilicity. Electrophoretic mobility shift assays revealed that Z01 facilitates MTF-1-MRE complex formation, and, by inference, transfer of zinc from Z01 to MTF-1. Phosphorylated ERK levels were increased by ZnSO(4) treatment but not by Z01. Although our data do not definitely prove that Z01 is an MTF-1-specific activator, our observations suggest that zinc coordination compounds can regulate zinc distribution and act as zinc donors for specific molecules.
巻・号 117
ページ 140-6
公開日 2012-12-1
DOI 10.1016/j.jinorgbio.2012.07.021
PII S0162-0134(12)00260-7
PMID 23085594
MeSH Animals Cell Line, Tumor Coordination Complexes / chemistry* Coordination Complexes / pharmacology Cysteine / analogs & derivatives* Cysteine / chemistry Cysteine / pharmacology Electrophoretic Mobility Shift Assay Gene Expression* Humans Hydrophobic and Hydrophilic Interactions Metallothionein / genetics* Mice Promoter Regions, Genetic Transcription, Genetic* Transfection Zinc / chemistry*
IF 3.212
引用数 4
WOS 分野 CHEMISTRY, INORGANIC & NUCLEAR BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
ヒト・動物細胞