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Li X, Abdel-Moneim AME, Yang B. Signaling Pathways and Genes Associated with Hexavalent Chromium-Induced Hepatotoxicity. Biol Trace Elem Res 2023; 201:1888-1904. [PMID: 35648283 DOI: 10.1007/s12011-022-03291-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/17/2022] [Indexed: 11/02/2022]
Abstract
Exposure to hexavalent chromium [Cr(VI)] causes human and animal hepatotoxicity. However, it is unclear how Cr(VI) induces hepatotoxicity, nor is it clear which pathways and genes may be involved. This study aimed to identify the key molecular pathways and genes engaged in Cr(VI)-induced hepatotoxicity. Publicly available microarray GSE19662 was downloaded from the Gene Expression Omnibus database. GSE19662 consists of primary rat hepatocyte (PRH) groups treated with or without 0.10 ppm potassium dichromate (PD), with three samples per group. Compared to the control group, a total of 400 differentially expressed genes were obtained. Specially 262 and 138 genes were up- and downregulated in PD-treated PRHs, respectively. Gene ontology (GO) enrichment indicated that those DEGs were primarily engaged in many biological processes, including androgen biosynthetic process, the positive regulation of cell death, the response to activity, the toxic substance and hepatocyte growth factor stimulus, and others. Kyoto Encyclopedia of Genes and Genomes (KEGG) suggested that the DEGs are fundamentally enriched in hepatocellular carcinoma (HCC), hepatitis B, p53, PI3K-Akt, MAPK, AMPK, metabolic pathways, estrogen, cGMP-PKG, metabolic pathways, etc. Moreover, many genes, including UBE2C, TOP2A, PRC1, CENPF, and MKI67, might contribute to Cr(VI)-induced hepatotoxicity. Taken together, this study enhances our understanding of the regulation, prevention, and treatment strategies of Cr(VI)-induced hepatotoxicity.
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Affiliation(s)
- Xiaofeng Li
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China
| | - Abdel-Moneim Eid Abdel-Moneim
- Biological Applications Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Abu-Zaabal, 13759, Egypt
| | - Bing Yang
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China.
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Lin H, Wang L, Liu Z, Long K, Kong M, Ye D, Chen X, Wang K, Wu KKL, Fan M, Song E, Wang C, Hoo RLC, Hui X, Hallenborg P, Piao H, Xu A, Cheng KKY. Hepatic MDM2 Causes Metabolic Associated Fatty Liver Disease by Blocking Triglyceride-VLDL Secretion via ApoB Degradation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200742. [PMID: 35524581 PMCID: PMC9284139 DOI: 10.1002/advs.202200742] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/15/2022] [Indexed: 05/06/2023]
Abstract
Dysfunctional triglyceride-very low-density lipoprotein (TG-VLDL) metabolism is linked to metabolic-associated fatty liver disease (MAFLD); however, the underlying cause remains unclear. The study shows that hepatic E3 ubiquitin ligase murine double minute 2 (MDM2) controls MAFLD by blocking TG-VLDL secretion. A remarkable upregulation of MDM2 is observed in the livers of human and mouse models with different levels of severity of MAFLD. Hepatocyte-specific deletion of MDM2 protects against high-fat high-cholesterol diet-induced hepatic steatosis and inflammation, accompanied by a significant elevation in TG-VLDL secretion. As an E3 ubiquitin ligase, MDM2 targets apolipoprotein B (ApoB) for proteasomal degradation through direct protein-protein interaction, which leads to reduced TG-VLDL secretion in hepatocytes. Pharmacological blockage of the MDM2-ApoB interaction alleviates dietary-induced hepatic steatohepatitis and fibrosis by inducing hepatic ApoB expression and subsequent TG-VLDL secretion. The effect of MDM2 on VLDL metabolism is p53-independent. Collectively, these findings suggest that MDM2 acts as a negative regulator of hepatic ApoB levels and TG-VLDL secretion in MAFLD. Inhibition of the MDM2-ApoB interaction may represent a potential therapeutic approach for MAFLD treatment.
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Affiliation(s)
- Huige Lin
- Department of Health Technology and InformaticsThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong
| | - Lin Wang
- Department of Health Technology and InformaticsThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong
- The State Key Laboratory of Pharmaceutical BiotechnologyThe University of Hong KongPokfulamHong Kong
- Department of MedicineThe University of Hong KongPokfulamHong Kong
| | - Zhuohao Liu
- The State Key Laboratory of Pharmaceutical BiotechnologyThe University of Hong KongPokfulamHong Kong
- Department of MedicineThe University of Hong KongPokfulamHong Kong
- Department of NeurosurgeryShenzhen HospitalSouthern Medical UniversityShenzhen518000P. R. China
| | - Kekao Long
- Department of Health Technology and InformaticsThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong
| | - Mengjie Kong
- Department of Health Technology and InformaticsThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong
| | - Dewei Ye
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of EducationGuangdong Pharmaceutical UniversityGuangzhou510000P. R. China
| | - Xi Chen
- Department of Health Technology and InformaticsThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong
| | - Kai Wang
- Department of Health Technology and InformaticsThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong
| | - Kelvin KL Wu
- Department of Health Technology and InformaticsThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong
| | - Mengqi Fan
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of EducationGuangdong Pharmaceutical UniversityGuangzhou510000P. R. China
| | - Erfei Song
- Department of Metabolic and Bariatric SurgeryThe First Affiliated Hospital of Jinan UniversityGuangzhou510000P. R. China
| | - Cunchuan Wang
- Department of Metabolic and Bariatric SurgeryThe First Affiliated Hospital of Jinan UniversityGuangzhou510000P. R. China
| | - Ruby LC Hoo
- The State Key Laboratory of Pharmaceutical BiotechnologyThe University of Hong KongPokfulamHong Kong
- Department of Pharmacology and PharmacyThe University of Hong KongPokfulamHong Kong
| | - Xiaoyan Hui
- The State Key Laboratory of Pharmaceutical BiotechnologyThe University of Hong KongPokfulamHong Kong
- Department of MedicineThe University of Hong KongPokfulamHong Kong
| | - Philip Hallenborg
- Department of Biochemistry and Molecular BiologyUniversity of Southern DenmarkSouthern Denmark5230Denmark
| | - Hailong Piao
- Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116000P. R. China
| | - Aimin Xu
- The State Key Laboratory of Pharmaceutical BiotechnologyThe University of Hong KongPokfulamHong Kong
- Department of MedicineThe University of Hong KongPokfulamHong Kong
- Department of Pharmacology and PharmacyThe University of Hong KongPokfulamHong Kong
| | - Kenneth KY Cheng
- Department of Health Technology and InformaticsThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong
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Hutch CR, Stelmak D, Kanke M, Koch-Laskowski K, Cummings B, Griffin C, Leix K, Sethupathy P, Singer K, Sandoval DA. Diet-dependent sex differences in the response to vertical sleeve gastrectomy. Am J Physiol Endocrinol Metab 2021; 321:E11-E23. [PMID: 33998293 PMCID: PMC8321822 DOI: 10.1152/ajpendo.00060.2021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 12/14/2022]
Abstract
Nearly 80% of patients that receive bariatric surgery are women, yet mechanistic preclinical studies have focused on males. The goal of this study was to determine the metabolic impact of diet- and surgery-induced weight loss in males, females, and ovariectomized females. All mice were fed a 60% high-fat diet (HFD) before undergoing either vertical sleeve gastrectomy (VSG) or sham surgery. Mice either remained on an HFD or were switched to a standard chow diet postsurgically. When maintained on an HFD, males and females decreased fat mass and improved oral glucose tolerance after VSG. After dietary intervention, additional adiposity was lost in both surgical groups. Ovariectomized females showed a blunted decrease in fat mass on an HFD, but lost significant adiposity after dietary intervention. Energy expenditure was impacted by dietary and not surgical intervention across all groups. Males decreased hepatic triglyceride levels after VSG, which was further decreased after dietary intervention. Intact and ovariectomized females had a blunted decrease in hepatic triglycerides after VSG, but a significant decrease after dietary intervention. The more pronounced effect of VSG on hepatic lipids in males is strongly associated with changes in hepatic expression of genes and microRNAs previously linked to hepatic lipid regulation and systemic energy homeostasis. These data highlight the importance of postsurgical diet on metabolic outcomes across sexes. Furthermore, these data suggest the impact of VSG on hepatic triglycerides is diet-dependent in females and support the hypothesis that males and females achieve similar metabolic outcome, at least within the liver, via distinct mechanisms.NEW & NOTEWORTHY These data highlight the interaction of postsurgical diet after bariatric surgery on metabolic outcomes across sexes. These data suggest the impact of VSG on hepatic triglycerides is diet-dependent in females and support the hypothesis that males and females achieve similar metabolic outcome, at least within the liver, via distinct mechanisms.
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Affiliation(s)
- Chelsea R Hutch
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Daria Stelmak
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Matt Kanke
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Kieran Koch-Laskowski
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Bethany Cummings
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Cameron Griffin
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, Michigan
| | - Kyle Leix
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Praveen Sethupathy
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Kanakadurga Singer
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, Michigan
| | - Darleen A Sandoval
- Department of Pediatrics, Section of Nutrition and Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado
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Lu J, He Y, Cui L, Xing X, Liu Z, Li X, Zhang H, Li H, Sun W, Ji A, Wang Y, Yin H, Li C. Hyperuricemia Predisposes to the Onset of Diabetes via Promoting Pancreatic β-Cell Death in Uricase-Deficient Male Mice. Diabetes 2020; 69:1149-1163. [PMID: 32312870 PMCID: PMC7243290 DOI: 10.2337/db19-0704] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 03/23/2020] [Indexed: 12/16/2022]
Abstract
Clinical studies have shown a link between hyperuricemia (HU) and diabetes, while the exact effect of soluble serum urate on glucose metabolism remains elusive. This study aims to characterize the glucose metabolic phenotypes and investigate the underlying molecular mechanisms using a novel spontaneous HU mouse model in which the uricase (Uox) gene is absent. In an attempt to study the role of HU in glycometabolism, we implemented external stimulation on Uox knockout (KO) and wild-type (WT) males with a high-fat diet (HFD) and/or injections of multiple low-dose streptozotocin (MLD-STZ) to provoke the potential role of urate. Notably, while Uox-KO mice developed glucose intolerance in the basal condition, no mice spontaneously developed diabetes, even with aging. HFD-fed Uox-KO mice manifested similar insulin sensitivity compared with WT controls. HU augmented the existing glycometabolism abnormality induced by MLD-STZ and eventually led to diabetes, as evidenced by the increased random glucose. Reduced β-cell masses and increased terminal deoxynucleotidyl TUNEL-positive β-cells suggested that HU-mediated diabetes was cell death dependent. However, urate-lowering therapy (ULT) cannot ameliorate the diabetes incidence or reverse β-cell apoptosis with significance. ULT displayed a significant therapeutic effect of HU-crystal-associated kidney injury and tubulointerstitial damage in diabetes. Moreover, we present transcriptomic analysis of isolated islets, using Uox-KO versus WT mice and streptozotocin-induced diabetic WT (STZ-WT) versus diabetic Uox-KO (STZ-KO) mice. Shared differentially expressed genes of HU primacy revealed Stk17β is a possible target gene in HU-related β-cell death. Together, this study suggests that HU accelerates but does not cause diabetes by inhibiting islet β-cell survival.
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Affiliation(s)
- Jie Lu
- Shandong Provincial Key Laboratory of Metabolic Diseases, Qingdao Key Laboratory of Gout, and Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Yuwei He
- Shandong Provincial Key Laboratory of Metabolic Diseases, Qingdao Key Laboratory of Gout, and Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lingling Cui
- Shandong Provincial Key Laboratory of Metabolic Diseases, Qingdao Key Laboratory of Gout, and Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaoming Xing
- Department of Pathology, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhen Liu
- Shandong Provincial Key Laboratory of Metabolic Diseases, Qingdao Key Laboratory of Gout, and Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xinde Li
- Shandong Provincial Key Laboratory of Metabolic Diseases, Qingdao Key Laboratory of Gout, and Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hui Zhang
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Hailong Li
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Wenyan Sun
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Aichang Ji
- Shandong Provincial Key Laboratory of Metabolic Diseases, Qingdao Key Laboratory of Gout, and Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yao Wang
- Shandong Provincial Key Laboratory of Metabolic Diseases, Qingdao Key Laboratory of Gout, and Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Huiyong Yin
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Changgui Li
- Shandong Provincial Key Laboratory of Metabolic Diseases, Qingdao Key Laboratory of Gout, and Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
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