Presence of potential nickel-responsive element(s) in the mouse MTH1 promoter

R. Liang, H. Igarashi, Teruhisa Tsuzuki, Yusaku Nakabeppu, M. Sekiguchi, K. S. Kasprzak, Y. H. Shiao

Research output: Contribution to journalArticle

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Abstract

The murine MTH1 gene codes for MTH1, an 8-oxo-2′-deoxyguanosine 5′-triphosphate pyrophosphohydrolase (8-oxo-dGTPase) which hydrolyzes 8-oxo-dGTP, a promutagenic product of reactive oxygen species' attack on the nucleotide pool. This gene is regulated by oxidative stress. Therefore, we hypothesized that MTH1 expression can be affected by carcinogenic nickel(II), known to induce such stress. Three plasmid constructs, carrying different upstream regions of the mouse MTH1 and the chloramphenicol acetyltransferase (CAT) reporter gene, were transiently transfected into NIH 3T3 cells and the CAT protein was measured in nickel(II) acetate-treated and untreated cells. Nickel concentration-dependent increase of CAT protein level was observed for low Ni(II) concentrations, up to 400 μM Ni(II), in cells transfected with pHI 103 plasmid (-5969 to +530 of the MTH1 sequence) only. Cells transfected with the pHI104 (-1331 to +530) or pHI108 (-151 to +530) plasmids did not respond to nickel(II) whatsoever. This finding demonstrated that the MTH1 sequence between -5969 and -1331 contained element(s) responsive to nickel(II) treatment. DNA sequencing revealed the presence of AP-1, NF-κB, and ATF-1 binding sites in both the -5969 to -1331 and -1331 to +530 regions. In contrast, two (CA)n repeats (-5642 to -5582 and -2078 to -2031), a family of B2 (-5428 to -5247) and B1 (-4559 to -4420) short interspersed repeated elements, and an (AT)n repeat (-5243 to -5230) were identified only in the -5969 to -1331 sequence. The results suggest that up-regulation of murine MTH1 expression by nickel(II) is controlled by the repeat sequences, potential candidates for nickel-responsive elements.

Original languageEnglish
Pages (from-to)91-98
Number of pages8
JournalAnnals of Clinical and Laboratory Science
Volume31
Issue number1
Publication statusPublished - Jan 1 2001

Fingerprint

Nickel
Chloramphenicol O-Acetyltransferase
Plasmids
Genes
NIH 3T3 Cells
Oxidative stress
Transcription Factor AP-1
DNA Sequence Analysis
Reporter Genes
Reactive Oxygen Species
Proteins
Oxidative Stress
Up-Regulation
Nucleotides
Binding Sites
DNA

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Immunology and Allergy
  • Pathology and Forensic Medicine
  • Immunology
  • Molecular Biology
  • Hematology
  • Clinical Biochemistry
  • Medical Laboratory Technology

Cite this

Liang, R., Igarashi, H., Tsuzuki, T., Nakabeppu, Y., Sekiguchi, M., Kasprzak, K. S., & Shiao, Y. H. (2001). Presence of potential nickel-responsive element(s) in the mouse MTH1 promoter. Annals of Clinical and Laboratory Science, 31(1), 91-98.

Presence of potential nickel-responsive element(s) in the mouse MTH1 promoter. / Liang, R.; Igarashi, H.; Tsuzuki, Teruhisa; Nakabeppu, Yusaku; Sekiguchi, M.; Kasprzak, K. S.; Shiao, Y. H.

In: Annals of Clinical and Laboratory Science, Vol. 31, No. 1, 01.01.2001, p. 91-98.

Research output: Contribution to journalArticle

Liang, R, Igarashi, H, Tsuzuki, T, Nakabeppu, Y, Sekiguchi, M, Kasprzak, KS & Shiao, YH 2001, 'Presence of potential nickel-responsive element(s) in the mouse MTH1 promoter', Annals of Clinical and Laboratory Science, vol. 31, no. 1, pp. 91-98.
Liang R, Igarashi H, Tsuzuki T, Nakabeppu Y, Sekiguchi M, Kasprzak KS et al. Presence of potential nickel-responsive element(s) in the mouse MTH1 promoter. Annals of Clinical and Laboratory Science. 2001 Jan 1;31(1):91-98.
Liang, R. ; Igarashi, H. ; Tsuzuki, Teruhisa ; Nakabeppu, Yusaku ; Sekiguchi, M. ; Kasprzak, K. S. ; Shiao, Y. H. / Presence of potential nickel-responsive element(s) in the mouse MTH1 promoter. In: Annals of Clinical and Laboratory Science. 2001 ; Vol. 31, No. 1. pp. 91-98.
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