Metallothionein gene expression in peripheral lymphocytes and renal dysfunction in a population environmentally exposed to cadmium

Jian Lu, Taiyi Jin, Gunnar Nordberg, Monica Nordberg

Research output: Contribution to journalArticlepeer-review

Abstract

In order to study the validity of metallothionein (MT) gene expression in peripheral blood lymphocytes (PBLs) as a biomarker of cadmium exposure and susceptibility to renal dysfunction, MT mRNA levels were measured using reverse transcription polymerase chain reaction (RT-PCR) in PBLs from residents living in a cadmium-contaminated area. MT mRNA levels were found to increase with the increase of blood cadmium (BCd) and urinary cadmium (UCd) levels. Basal MT mRNA levels were significantly correlated with the logarithm of BCd levels and the logarithm of UCd levels confirming that MT expression in PBLs is a biomarker of cadmium exposure and internal dose. An inverse relationship was observed between in vitro induced MT-mRNA level in PBLs and urinary N-acetyl-β-d- glucosaminidase (UNAG) suggesting that MT gene expression in PBLs may be used as a biomarker of susceptibility to renal toxicity of cadmium.

Original languageEnglish (US)
Pages (from-to)150-156
Number of pages7
JournalToxicology and Applied Pharmacology
Volume206
Issue number2
DOIs
StatePublished - Aug 15 2005

Keywords

  • Blood
  • Cadmium exposure
  • Gene expression
  • Human
  • Metallothionein
  • NAG
  • Peripheral lymphocytes
  • Renal dysfunction
  • Urine

ASJC Scopus subject areas

  • Toxicology
  • Pharmacology

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