PMID- 37236338 OWN - NLM STAT- MEDLINE DCOM- 20230616 LR - 20230627 IS - 1879-3185 (Electronic) IS - 0300-483X (Linking) VI - 493 DP - 2023 Jul TI - PFOA exposure induces aberrant glucose and lipid metabolism in the rat liver through the AMPK/mTOR pathway. PG - 153551 LID - S0300-483X(23)00137-3 [pii] LID - 10.1016/j.tox.2023.153551 [doi] AB - Perfluorooctanoic acid (PFOA) is the most prominent member of a widely utilized family of compounds named Perfluoroalkyl substances (PFASs). Initially produced for use in both industrial and consumer applications, it has since been recognized that PFASs are extremely persistent in the environment where they have been characterized as persistent organic pollutants (POPs). While previous studies have demonstrated that PFOA may induce disorders of lipid and carbohydrate metabolism, the precise mechanisms by which PFOA produces this phenotype and the involvement of downstream AMPK/mTOR pathways remains unclear. In this study, male rats were exposed to 1.25, 5 and 20 mg PFOA/kg body weight/day for 28 days by oral gavage. After 28 days, blood was collected and tested for serum biochemical indicators and livers were removed and weighed. To investigate aberrant metabolism in rats exposed to PFOA, livers were analyzed by performing LC-MS/MS untargeted metabolomics, quantitative real-time PCR, western blotting, immunohistochemical staining was also performed on exposed tissues. Our results showed that exposure to PFOA induced liver damage, increased the expression of glucose and lipid related biochemical indexes in liver and serum, and altered the expression levels of AMPK/mTOR pathway related genes and proteins. In summary, this study clarifies the mechanisms responsible for PFOA toxicity in the liver of exposed animals. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Zhang, Xuemin AU - Zhang X AD - Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu 233030, PR China; Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, PR China; Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, PR China. FAU - Ren, Xijuan AU - Ren X AD - School of Public Health, Bengbu Medical College, Bengbu 233030, PR China. FAU - Sun, Weiqiang AU - Sun W AD - Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu 233030, PR China; Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, PR China; Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, PR China. FAU - Griffin, Nathan AU - Griffin N AD - Department of Cell and Tissue Biology, University of California, San Francisco, CA, USA. FAU - Wang, Li AU - Wang L AD - School of Public Health, Bengbu Medical College, Bengbu 233030, PR China. Electronic address: wangli@bbmc.edu.cn. FAU - Liu, Hui AU - Liu H AD - Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu 233030, PR China; Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, PR China; Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, PR China. Electronic address: liuhui@bbmc.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230524 PL - Ireland TA - Toxicology JT - Toxicology JID - 0361055 RN - 947VD76D3L (perfluorooctanoic acid) RN - EC 2.7.11.31 (AMP-Activated Protein Kinases) RN - IY9XDZ35W2 (Glucose) RN - 0 (Caprylates) RN - 0 (Fluorocarbons) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - EC 2.7.1.1 (mTOR protein, rat) SB - IM MH - Male MH - Rats MH - Animals MH - *Lipid Metabolism MH - AMP-Activated Protein Kinases/metabolism MH - Glucose/metabolism MH - Chromatography, Liquid MH - Tandem Mass Spectrometry MH - Caprylates/toxicity MH - Liver/metabolism MH - *Fluorocarbons/toxicity/metabolism MH - TOR Serine-Threonine Kinases/metabolism OTO - NOTNLM OT - AMPK/mTOR OT - Liver injury OT - Metabolism OT - Perfluorooctanoic acid (PFOA) COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/05/27 09:42 MHDA- 2023/06/16 06:42 CRDT- 2023/05/26 19:24 PHST- 2023/02/13 00:00 [received] PHST- 2023/05/05 00:00 [revised] PHST- 2023/05/19 00:00 [accepted] PHST- 2023/06/16 06:42 [medline] PHST- 2023/05/27 09:42 [pubmed] PHST- 2023/05/26 19:24 [entrez] AID - S0300-483X(23)00137-3 [pii] AID - 10.1016/j.tox.2023.153551 [doi] PST - ppublish SO - Toxicology. 2023 Jul;493:153551. doi: 10.1016/j.tox.2023.153551. Epub 2023 May 24.