Evidence map›Paper›PMID 26582802›Full record

ArticleToxicological sciences : an official journal of the Society of Toxicology2016

Pyruvate Kinase Isoform Switching and Hepatic Metabolic Reprogramming by the Environmental Contaminant 2,3,7,8-Tetrachlorodibenzo-p-Dioxin.

Rance Nault, Kelly A Fader, Mathew P Kirby, Shaimaa Ahmed, Jason Matthews, A Daniel Jones, Sophia Y Lunt, Timothy R Zacharewski

Open access · bronzeAbstract read
In one paragraph

Article in Toxicological sciences : an official journal of the Society of Toxicology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 49 citations in OpenAlex.

  1. Functional genomic analysis of non-canonical DNA regulatory elements of the aryl hydrocarbon receptor.Toxicological sciences : an official journal of the Society of Toxicology · 2026
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  10. Cystine/Glutamate XcChemical research in toxicology · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 3 countries.

Rance Nault*Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824, Institute for Integrative Toxicology.
Kelly A Fader*Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824, Institute for Integrative Toxicology.
Mathew P Kirby*Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824.
Shaimaa AhmedDepartment of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada.
Jason MatthewsDepartment of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada, Department of Nutrition, University of Oslo, Oslo, 0316, Norway, and.
A Daniel Jones*Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824, Department of Chemistry, Michigan State University, East Lansing, Michigan 48824.
Sophia Y Lunt*Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824.
Timothy R Zacharewski*Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824, Institute for Integrative Toxicology, naultran@msu.edu tzachare@msu.edu.
Michigan State University · USUniversity of Toronto · CA

Funding

VOLATILE ORGANIC CONTAMINANTS--QUANTIFYING THEIR MOVEMENT IN THE UNSATURATED ZONEP42ES004911 · NIEHS · MICHIGAN STATE UNIVERSITY · PI Timothy R. Zacharewski · 1989 to 2026
$64.9M
Integrative Training in the Pharmacological SciencesT32GM092715 · NIGMS · MICHIGAN STATE UNIVERSITY · PI NEUBIG, RICHARD R · 2011 to 2020
$1.5M
Canadian Institutes of Health Research MOP-125919NIEHS NIH HHS P42 ES004911NIEHS NIH HHS SRP P42ES04911NIGMS NIH HHS 5T32GM092715NIGMS NIH HHS T32 GM092715
6 · The paper itself

Abstract

The environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) elicits dose-dependent hepatotoxicity that includes fat accumulation, inflammation, and fibrosis that may progress to hepatocellular carcinoma. To further investigate these effects, RNA-Seq data were integrated with computationally identified putative dioxin response elements, and complementary targeted metabolomic and aryl hydrocarbon receptor (AhR) ChIP-Seq data from female C57BL/6 mice gavaged with TCDD every 4 days for 28 days. Data integration using CytoKEGG with manual curation identified dose-dependent alterations in central carbon and amino acid metabolism. More specifically, TCDD increased pyruvate kinase isoform M2 (PKM2) gene and protein expression. PKM2 has lower catalytic activity resulting in decreased glycolytic flux and the accumulation of upstream intermediates that were redirected to the pentose phosphate pathway and serine/folate biosynthesis, 2 important NADPH producing pathways stemming from glycolysis. In addition, the GAC:KGA glutaminase (GLS1) protein isoform ratio was increased, consistent with increases in glutaminolysis which serves an anaplerotic role for the TCA cycle and compensates for the reduced glycolytic flux. Collectively, gene expression, protein, and metabolite changes were indicative of increases in NADPH production in support of cytochrome P450 activity and ROS defenses. This AhR-mediated metabolic reprogramming is similar to the Warburg effect and represents a novel advantageous defense mechanism to increase anti-oxidant capacity in normal differentiated hepatocytes.

Indexed as

AnimalsEnvironmental PollutantsFatty AcidsFemaleGlucoseIsoenzymesLipid MetabolismLiverMiceMice, Inbred C57BLNADPOxidative StressPolychlorinated DibenzodioxinsPyruvate KinaseReceptors, Aryl HydrocarbonEnvironmental PollutantsFatty AcidsGlucoseIsoenzymesNADPPolychlorinated DibenzodioxinsPyruvate KinaseReceptors, Aryl Hydrocarbonglutaminolysishepatotoxicityoxidative stressPKM2TCDD

Identifiers

PMID26582802
PMCPMC4900217
OpenAlexW2284626840

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.