Molecular and Cellular Biochemistry

, Volume 325, Issue 1, pp 121–130

Isoenzyme-specific up-regulation of glutathione transferase and aldo-keto reductase mRNA expression by dietary quercetin in rat liver

  • Tseye-Oidov Odbayar
  • Toshinori Kimura
  • Tojiro Tsushida
  • Takashi Ide
Article

DOI: 10.1007/s11010-009-0026-4

Cite this article as:
Odbayar, T., Kimura, T., Tsushida, T. et al. Mol Cell Biochem (2009) 325: 121. doi:10.1007/s11010-009-0026-4
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Abstract

The impact of quercetin on the mRNA expression of hepatic enzymes involved in drug metabolism was evaluated with a DNA microarray and real-time PCR. Male Sprague–Dawley rats were fed an experimental diet containing either 0, 2.5, 5, 10, or 20 g/kg of quercetin for 15 days. The DNA microarray analysis of the gene expression profile in pooled RNA samples from rats fed diets containing 0, 5, and 20 g/kg of quercetin revealed genes of some isoenzymes of glutathione transferase (Gst) and aldo-keto reductase (Akr) to be activated by this flavonoid. Real-time PCR conducted with RNA samples from individual rats fed varying amounts of quercetin together with the microarray analysis showed that quercetin caused marked dose-dependent increases in the mRNA expression of Gsta3, Gstp1, and Gstt3. Some moderate increases were also noted in the mRNA expression of isoenzymes belonging to the Gstm class. Quercetin also dose-dependently increased the mRNA expression of Akr1b8 and Akr7a3. However, it did not affect the parameters of the other Gst and Akr isoenzymes. It is apparent that quercetin increases the mRNA expression of Gst and Akr involved in drug metabolism in an isoenzyme-specific manner. Inasmuch as Gst and Akr isoenzymes up-regulated in their gene expression are involved in the prevention and attenuation of cancer development, this consequence may account for the chemopreventive propensity of quercetin.

Keywords

QuercetinDNA microarrayDrug metabolismGlutathione transferaseAldo-keto reductase

Copyright information

© Springer Science+Business Media, LLC. 2009

Authors and Affiliations

  • Tseye-Oidov Odbayar
    • 1
  • Toshinori Kimura
    • 2
  • Tojiro Tsushida
    • 3
  • Takashi Ide
    • 3
  1. 1.Department of Food Processing and Services, Institute of Food BiotechnologyMongolian University of Science and TechnologyUlaanbaatarMongolia
  2. 2.Laboratory of Agricultural Process Engineering, Graduate School of AgricultureHokkaido UniversitySapporoJapan
  3. 3.Laboratory of Nutritional Function, Division of Food FunctionalityNational Food Research InstituteTsukubaJapan