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Overexpression of G6PD and HSP90 Beta in Mice with Benzene Exposure Revealed by Serum Peptidome Analysis

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Listed:
  • Juan Zhang

    (Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China)

  • Kehong Tan

    (Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China)

  • Xing Meng

    (Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China)

  • Wenwen Yang

    (Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China)

  • Haiyan Wei

    (Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China)

  • Rongli Sun

    (Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China)

  • Lihong Yin

    (Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China)

  • Yuepu Pu

    (Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China)

Abstract

The small peptides representation of the original proteins are a valuable source of information that can be used as biomarkers involved in toxicity mechanism for chemical exposure. The aim of this study is to investigate serum peptide biomarkers of benzene exposure. C57BL/6 mice were enrolled into control group and benzene groups of 150 and 300 mg/kg/d Serum peptides were identified by mass spectrometry using an assisted laser desorption ionization/time of flight mass spectrometry (MS). Differential peptide spectra were obtained by tandem mass spectrometry and analyzed by searching the International Protein Index using the Sequest program. Forty-one peptide peaks were found in the range of 1000–10,000 Da molecular weight. Among them, seven peaks showed significantly different expression between exposure groups and control group. Two peptide peaks (1231.2 and 1241.8), which showed a two-fold increase in expression, were sequenced and confirmed as glucose 6-phosphate dehydrogenase (G6PD) and heat shock protein 90 Beta (HSP90 Beta), respectively. Furthermore, the expression of the two proteins in liver cells showed the same trend as in serum. In conclusion, G6PD and HSP90 beta might be the candidate serum biomarkers of benzene exposure. It also provided possible clues for the molecular mechanism of benzene-induced oxidative stress.

Suggested Citation

  • Juan Zhang & Kehong Tan & Xing Meng & Wenwen Yang & Haiyan Wei & Rongli Sun & Lihong Yin & Yuepu Pu, 2015. "Overexpression of G6PD and HSP90 Beta in Mice with Benzene Exposure Revealed by Serum Peptidome Analysis," IJERPH, MDPI, vol. 12(9), pages 1-13, September.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:9:p:11241-11253:d:55526
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    References listed on IDEAS

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    1. Lance A. Liotta & Mauro Ferrari & Emanuel Petricoin, 2003. "Clinical proteomics: Written in blood," Nature, Nature, vol. 425(6961), pages 905-905, October.
    2. Robert Snyder, 2012. "Leukemia and Benzene," IJERPH, MDPI, vol. 9(8), pages 1-19, August.
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    More about this item

    Keywords

    benzene; peptidome; biomarkers; G6PD; HSP90 beta;
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