Evaluation of toxicological biomarkers in secreted proteins of HepG2 cells exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin and their expressions in the plasma of rats and incineration workers

Sohee Phark, So Young Park, Yoon Seok Chang, Seonyoung Choi, Ji Youn Lim, Yoonjin Kim, Jong Bok Seo, Woon Won Jung, Dong Geun Sul

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Toxicological biomarkers of 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) were investigated in proteins secreted by HepG2 cells and their expression levels were determined in the plasma of rats exposed to 2,3,7,8-TCDD and in the plasma of incineration workers exposed to dioxins. HepG2 cells were treated with various concentrations of 2,3,7,8-TCDD (0, 0.25, 0.5, 1, 2.5, 5, 10, 25 nM) for 24 or 48 h. MTT and Comet assays were performed to determine cytotoxicities and genotoxicities to select exposure concentrations for the proteomic analysis of proteins secreted by 2,3,7,8-TCDD-treated cells. In the proteomic analysis, dose- and time-dependent toxicological biomarkers were evaluated using two pI ranges (4-7 and 6-9) using a large gel 2-DE system. Fifteen secreted proteins were identified by a nano-LC-ESI-MS/MS and nano-ESI on a Q-TOF2 MS and the identities of eight secreted proteins including glyoxalase 1 (GLO 1), homogentisate dioxygenase (HGD), peroxiredoxin 1 (PRX 1), proteasome subunit beta type (PSMB) 5 and 6, UDP-glucose 6-dehydrogenase (UDP-GlcDH), hydroxyacyl-coenzyme A dehydrogenase (HADH) and serotransferrin (STF) were confirmed by western blotting. Of these, PSMB 5 and PRX 1 were also found in the plasma of rats exposed to 2,3,7,8-TCDD, whereas GLO 1, HGD, PSMB 6 and PRX 1 were found in the plasma of incineration workers exposed to dioxins.

Original languageEnglish
Pages (from-to)584-593
Number of pages10
JournalBiochimica et Biophysica Acta - Proteins and Proteomics
Volume1864
Issue number5
DOIs
Publication statusPublished - 2016 May 1

Fingerprint

Incineration
Hep G2 Cells
Biomarkers
Peroxiredoxins
Toxicology
Rats
Homogentisate 1,2-Dioxygenase
Proteasome Endopeptidase Complex
Plasmas
Dioxins
Oxidoreductases
Proteins
Uridine Diphosphate Glucose
Proteomics
Uridine Diphosphate Glucose Dehydrogenase
Coenzyme A
Cytotoxicity
Transferrin
Assays
Comet Assay

Keywords

  • 2,3,7,8-TCDD
  • 2-D gel electrophoresis
  • Biomarkers
  • Dioxins
  • HepG2
  • Incineration
  • Plasma
  • Secreted proteins

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Analytical Chemistry
  • Molecular Biology

Cite this

Evaluation of toxicological biomarkers in secreted proteins of HepG2 cells exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin and their expressions in the plasma of rats and incineration workers. / Phark, Sohee; Park, So Young; Chang, Yoon Seok; Choi, Seonyoung; Lim, Ji Youn; Kim, Yoonjin; Seo, Jong Bok; Jung, Woon Won; Sul, Dong Geun.

In: Biochimica et Biophysica Acta - Proteins and Proteomics, Vol. 1864, No. 5, 01.05.2016, p. 584-593.

Research output: Contribution to journalArticle

Phark, Sohee ; Park, So Young ; Chang, Yoon Seok ; Choi, Seonyoung ; Lim, Ji Youn ; Kim, Yoonjin ; Seo, Jong Bok ; Jung, Woon Won ; Sul, Dong Geun. / Evaluation of toxicological biomarkers in secreted proteins of HepG2 cells exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin and their expressions in the plasma of rats and incineration workers. In: Biochimica et Biophysica Acta - Proteins and Proteomics. 2016 ; Vol. 1864, No. 5. pp. 584-593.
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