Toxicological biomarkers of 2,3,4,7,8-pentachlorodibenzofuran in proteins secreted by HepG2 cells. 2012

Sohee Phark, and So-Young Park, and Seonyoung Choi, and Zhi Zheng, and Eunkyung Cho, and Min Lee, and Ji-youn Lim, and Jong Bok Seo, and Nam Hee Won, and Woon-Won Jung, and Donggeun Sul
Graduate School of Medicine, Korea University, Seoul, Republic of Korea.

Using a proteomic approach, a study was conducted for determination of the effects of 2,3,4,7,8-pentachlorodibenzofuran (2,3,4,7,8-PCDF) on proteins secreted by HepG2 cells. Briefly, HepG2 cells were exposed to various concentrations of 2,3,4,7,8-PCDF for 24 or 48h. MTT and comet assays were then conducted for determination of cytotoxicity and genotoxicity, respectively. Results of an MTT assay showed that 1nM of 2,3,4,7,8-PCDF was the maximum concentration that did not cause cell death. In addition, a dose- and time dependent increase of DNA damage was observed in HepG2 cells exposed to 2,3,4,7,8-PCDF. Therefore, two different concentrations of 2,3,4,7,8-PCDF, 1 and 5nM, were selected for further analysis of proteomic biomarkers using two different pI ranges (4-7 and 6-9) and large two dimensional gel electrophoresis. Results showed identification of 32 proteins ( 29 up- and 3 down-regulated) by nano-LC-ESI-MS/MS and nano-ESI on a Q-TOF2 MS. Among these, the identities of pyridoxine-5'-phosphate oxidase, UDP-glucose 6-dehydrogenase, plasminogen activator inhibitor I precursor, plasminogen activator inhibitor-3, proteasome activator complex subunit 1, isoform 1 of 14-3-3 protein sigma, peptidyl-prolyl cis-trans isomerase A, 14-3-3 protein gamma, protein DJ-1, and nucleoside diphosphate kinase A were confirmed by western blot analysis. The differential expression of protein DJ-1, proteasome activator complex subunit 1 and plasminogen activator inhibitor-3 was further validated in plasma proteins from rats exposed to 2,3,4,7,8-PCDF. These proteins could be used as potential toxicological biomarkers of 2,3,4,7,8-PCDF.

UI MeSH Term Description Entries
D008297 Male Males
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D004249 DNA Damage Injuries to DNA that introduce deviations from its normal, intact structure and which may, if left unrepaired, result in a MUTATION or a block of DNA REPLICATION. These deviations may be caused by physical or chemical agents and occur by natural or unnatural, introduced circumstances. They include the introduction of illegitimate bases during replication or by deamination or other modification of bases; the loss of a base from the DNA backbone leaving an abasic site; single-strand breaks; double strand breaks; and intrastrand (PYRIMIDINE DIMERS) or interstrand crosslinking. Damage can often be repaired (DNA REPAIR). If the damage is extensive, it can induce APOPTOSIS. DNA Injury,DNA Lesion,DNA Lesions,Genotoxic Stress,Stress, Genotoxic,Injury, DNA,DNA Injuries
D004785 Environmental Pollutants Substances or energies, for example heat or light, which when introduced into the air, water, or land threaten life or health of individuals or ECOSYSTEMS. Environmental Pollutant,Pollutant,Pollutants,Pollutants, Environmental,Pollutant, Environmental
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000071617 Protein Deglycase DJ-1 A protein deglycase that repairs methylglyoxal- and glyoxal-glycated amino acids and proteins, releasing repaired proteins and lactate or glycolate. It deglycates CYSTEINE, ARGININE and LYSINE residues to reactivate proteins by reversing glycation and prevent the formation of ADVANCED GLYCATION END PRODUCTS. It protects cells against OXIDATIVE STRESS and CELL DEATH by functioning as an oxidative stress sensor and redox-sensitive MOLECULAR CHAPERONE and PROTEASE. Mutations in the PARK7 gene are associated with autosomal-recessive, early-onset PARKINSON DISEASE. DJ-1 Protein,DJ-1-PARK7 Protein,DJ1 Protein,PARK7 Protein,Parkinson Protein 7,Parkinsonism Associated Deglycase,DJ 1 PARK7 Protein,DJ 1 Protein,DJ-1, Protein Deglycase,Deglycase, Parkinsonism Associated
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001572 Benzofurans Compounds that contain a BENZENE ring fused to a furan ring. Coumarones,Diphenylbenzofuran
D015180 Electrophoresis, Gel, Two-Dimensional Electrophoresis in which a second perpendicular electrophoretic transport is performed on the separate components resulting from the first electrophoresis. This technique is usually performed on polyacrylamide gels. Gel Electrophoresis, Two-Dimensional,Polyacrylamide Gel Electrophoresis, Two-Dimensional,2-D Gel Electrophoresis,2-D Polyacrylamide Gel Electrophoresis,2D Gel Electrophoresis,2D PAGE,2D Polyacrylamide Gel Electrophoresis,Electrophoresis, Gel, 2-D,Electrophoresis, Gel, 2D,Electrophoresis, Gel, Two Dimensional,Polyacrylamide Gel Electrophoresis, 2-D,Polyacrylamide Gel Electrophoresis, 2D,Two Dimensional Gel Electrophoresis,2 D Gel Electrophoresis,2 D Polyacrylamide Gel Electrophoresis,Electrophoresis, 2-D Gel,Electrophoresis, 2D Gel,Electrophoresis, Two-Dimensional Gel,Gel Electrophoresis, 2-D,Gel Electrophoresis, 2D,Gel Electrophoresis, Two Dimensional,PAGE, 2D,Polyacrylamide Gel Electrophoresis, 2 D,Polyacrylamide Gel Electrophoresis, Two Dimensional,Two-Dimensional Gel Electrophoresis
D015415 Biomarkers Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, ENVIRONMENTAL EXPOSURE and its effects, disease diagnosis; METABOLIC PROCESSES; SUBSTANCE ABUSE; PREGNANCY; cell line development; EPIDEMIOLOGIC STUDIES; etc. Biochemical Markers,Biological Markers,Biomarker,Clinical Markers,Immunologic Markers,Laboratory Markers,Markers, Biochemical,Markers, Biological,Markers, Clinical,Markers, Immunologic,Markers, Laboratory,Markers, Serum,Markers, Surrogate,Markers, Viral,Serum Markers,Surrogate Markers,Viral Markers,Biochemical Marker,Biologic Marker,Biologic Markers,Clinical Marker,Immune Marker,Immune Markers,Immunologic Marker,Laboratory Marker,Marker, Biochemical,Marker, Biological,Marker, Clinical,Marker, Immunologic,Marker, Laboratory,Marker, Serum,Marker, Surrogate,Serum Marker,Surrogate End Point,Surrogate End Points,Surrogate Endpoint,Surrogate Endpoints,Surrogate Marker,Viral Marker,Biological Marker,End Point, Surrogate,End Points, Surrogate,Endpoint, Surrogate,Endpoints, Surrogate,Marker, Biologic,Marker, Immune,Marker, Viral,Markers, Biologic,Markers, Immune

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