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Xie W, Liu W, Wang L, Zhu B, Zhao C, Liao Z, Li Y, Jiang X, Liu J, Ren C. Roles of THEM4 in the Akt pathway: a double-edged sword. J Zhejiang Univ Sci B 2024; 25:541-556. [PMID: 39011675 PMCID: PMC11254685 DOI: 10.1631/jzus.b2300457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/10/2023] [Indexed: 07/17/2024]
Abstract
The protein kinase B (Akt) pathway can regulate the growth, proliferation, and metabolism of tumor cells and stem cells through the activation of multiple downstream target genes, thus affecting the development and treatment of a range of diseases. Thioesterase superfamily member 4 (THEM4), a member of the thioesterase superfamily, is one of the Akt kinase-binding proteins. Some studies on the mechanism of cancers and other diseases have shown that THEM4 binds to Akt to regulate its phosphorylation. Initially, THEM4 was considered an endogenous inhibitor of Akt, which can inhibit the phosphorylation of Akt in diseases such as lung cancer, pancreatic cancer, and liver cancer, but subsequently, THEM4 was shown to promote the proliferation of tumor cells by positively regulating Akt activity in breast cancer and nasopharyngeal carcinoma, which contradicts previous findings. Considering these two distinct views, this review summarizes the important roles of THEM4 in the Akt pathway, focusing on THEM4 as an Akt-binding protein and its regulatory relationship with Akt phosphorylation in various diseases, especially cancer. This work provides a better understanding of the roles of THEM4 combined with Akt in the treatment of diseases.
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Affiliation(s)
- Wen Xie
- NHC Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Weidong Liu
- NHC Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Lei Wang
- NHC Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Bin Zhu
- NHC Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Cong Zhao
- NHC Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Ziling Liao
- NHC Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Yihan Li
- NHC Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Xingjun Jiang
- NHC Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Jie Liu
- Department of Critical Care Medicine, Hainan Hospital of Chinese PLA General Hospital, Hainan Province Clinical Medical Center, Sanya 572013, China. ,
| | - Caiping Ren
- NHC Key Laboratory of Carcinogenesis, Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China.
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China.
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Li Y, Pollock CA, Saad S. Aberrant DNA Methylation Mediates the Transgenerational Risk of Metabolic and Chronic Disease Due to Maternal Obesity and Overnutrition. Genes (Basel) 2021; 12:genes12111653. [PMID: 34828259 PMCID: PMC8624316 DOI: 10.3390/genes12111653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/02/2021] [Accepted: 10/17/2021] [Indexed: 12/13/2022] Open
Abstract
Maternal obesity is a rapidly evolving universal epidemic leading to acute and long-term medical and obstetric health issues, including increased maternal risks of gestational diabetes, hypertension and pre-eclampsia, and the future risks for offspring's predisposition to metabolic diseases. Epigenetic modification, in particular DNA methylation, represents a mechanism whereby environmental effects impact on the phenotypic expression of human disease. Maternal obesity or overnutrition contributes to the alterations in DNA methylation during early life which, through fetal programming, can predispose the offspring to many metabolic and chronic diseases, such as non-alcoholic fatty liver disease, obesity, diabetes, and chronic kidney disease. This review aims to summarize findings from human and animal studies, which support the role of maternal obesity in fetal programing and the potential benefit of altering DNA methylation to limit maternal obesity related disease in the offspring.
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Affiliation(s)
- Yan Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China;
| | - Carol A. Pollock
- Kolling Institute of Medical Research, University of Sydney, Sydney, NSW 2065, Australia;
| | - Sonia Saad
- Kolling Institute of Medical Research, University of Sydney, Sydney, NSW 2065, Australia;
- Correspondence:
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Lyu K, Zhang Y, Zhang D, Kahn M, Ter Horst KW, Rodrigues MRS, Gaspar RC, Hirabara SM, Luukkonen PK, Lee S, Bhanot S, Rinehart J, Blume N, Rasch MG, Serlie MJ, Bogan JS, Cline GW, Samuel VT, Shulman GI. A Membrane-Bound Diacylglycerol Species Induces PKCϵ-Mediated Hepatic Insulin Resistance. Cell Metab 2020; 32:654-664.e5. [PMID: 32882164 PMCID: PMC7544641 DOI: 10.1016/j.cmet.2020.08.001] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 06/22/2020] [Accepted: 08/03/2020] [Indexed: 12/15/2022]
Abstract
Nonalcoholic fatty liver disease is strongly associated with hepatic insulin resistance (HIR); however, the key lipid species and molecular mechanisms linking these conditions are widely debated. We developed a subcellular fractionation method to quantify diacylglycerol (DAG) stereoisomers and ceramides in the endoplasmic reticulum (ER), mitochondria, plasma membrane (PM), lipid droplets, and cytosol. Acute knockdown (KD) of diacylglycerol acyltransferase-2 in liver induced HIR in rats. This was due to PM sn-1,2-DAG accumulation, which promoted PKCϵ activation and insulin receptor kinase (IRK)-T1160 phosphorylation, resulting in decreased IRK-Y1162 phosphorylation. Liver PM sn-1,2-DAG content and IRK-T1160 phosphorylation were also higher in humans with HIR. In rats, liver-specific PKCϵ KD ameliorated high-fat diet-induced HIR by lowering IRK-T1160 phosphorylation, while liver-specific overexpression of constitutively active PKCϵ-induced HIR by promoting IRK-T1160 phosphorylation. These data identify PM sn-1,2-DAGs as the key pool of lipids that activate PKCϵ and that hepatic PKCϵ is both necessary and sufficient in mediating HIR.
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Affiliation(s)
- Kun Lyu
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA; Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT 06510, USA
| | - Ye Zhang
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA; Department of Endocrinology & Metabolism, First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Dongyan Zhang
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA
| | - Mario Kahn
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA
| | - Kasper W Ter Horst
- Department of Endocrinology and Metabolism Amsterdam University Medical Center, 1105AZ Amsterdam, the Netherlands
| | - Marcos R S Rodrigues
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA; School of Medicine, State University of Ponta Grossa, Avenida General Carlos Cavalcanti, Ponta Grossa, PR 84030-900, Brazil
| | - Rafael C Gaspar
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA; Laboratory of Molecular Biology of Exercise, School of Applied Science, University of Campinas, Limeira, SP 13484-350, Brazil
| | - Sandro M Hirabara
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA; Postgraduate Interdisciplinary Program of Health Sciences, Cruzeiro do Sul University, Sao Paulo, SP 01506-000, Brazil
| | - Panu K Luukkonen
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA
| | - Seohyuk Lee
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA
| | | | - Jesse Rinehart
- Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT 06510, USA; Systems Biology Institute, Yale University, West Haven, CT 06516, USA
| | - Niels Blume
- CV Research, Novo Nordisk A/S, Novo Nordisk Park, 2760 Maaloev, Denmark
| | | | - Mireille J Serlie
- Department of Endocrinology and Metabolism Amsterdam University Medical Center, 1105AZ Amsterdam, the Netherlands
| | - Jonathan S Bogan
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA; Department of Cell Biology, Yale School of Medicine, New Haven, CT 06510, USA
| | - Gary W Cline
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA
| | - Varman T Samuel
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA; VA Connecticut Healthcare System, West Haven, CT 06516, USA
| | - Gerald I Shulman
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA; Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT 06510, USA.
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Clark BJ. The START-domain proteins in intracellular lipid transport and beyond. Mol Cell Endocrinol 2020; 504:110704. [PMID: 31927098 DOI: 10.1016/j.mce.2020.110704] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/08/2020] [Accepted: 01/08/2020] [Indexed: 12/17/2022]
Abstract
The Steroidogenic Acute Regulatory Protein-related Lipid Transfer (START) domain is a ~210 amino acid sequence that folds into an α/β helix-grip structure forming a hydrophobic pocket for lipid binding. The helix-grip fold structure defines a large superfamily of proteins, and this review focuses on the mammalian START domain family members that include single START domain proteins with identified ligands, and larger multi-domain proteins that may have novel roles in metabolism. Much of our understanding of the mammalian START domain proteins in lipid transport and changes in metabolism has advanced through studies using knockout mouse models, although for some of these proteins the identity and/or physiological role of ligand binding remains unknown. The findings that helped define START domain lipid-binding specificity, lipid transport, and changes in metabolism are presented to highlight that fundamental questions remain regarding the biological function(s) for START domain-containing proteins.
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Affiliation(s)
- Barbara J Clark
- Department of Biochemistry & Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, 40292, USA.
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Bekeova C, Anderson-Pullinger L, Boye K, Boos F, Sharpadskaya Y, Herrmann JM, Seifert EL. Multiple mitochondrial thioesterases have distinct tissue and substrate specificity and CoA regulation, suggesting unique functional roles. J Biol Chem 2019; 294:19034-19047. [PMID: 31676684 PMCID: PMC6916504 DOI: 10.1074/jbc.ra119.010901] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/16/2019] [Indexed: 12/13/2022] Open
Abstract
Acyl-CoA thioesterases (Acots) hydrolyze fatty acyl-CoA esters. Acots in the mitochondrial matrix are poised to mitigate β-oxidation overload and maintain CoA availability. Several Acots associate with mitochondria, but whether they all localize to the matrix, are redundant, or have different roles is unresolved. Here, we compared the suborganellar localization, activity, expression, and regulation among mitochondrial Acots (Acot2, -7, -9, and -13) in mitochondria from multiple mouse tissues and from a model of Acot2 depletion. Acot7, -9, and -13 localized to the matrix, joining Acot2 that was previously shown to localize there. Mitochondria from heart, skeletal muscle, brown adipose tissue, and kidney robustly expressed Acot2, -9, and -13; Acot9 levels were substantially higher in brown adipose tissue and kidney mitochondria, as was activity for C4:0-CoA, a unique Acot9 substrate. In all tissues, Acot2 accounted for about half of the thioesterase activity for C14:0-CoA and C16:0-CoA. In contrast, liver mitochondria from fed and fasted mice expressed little Acot activity, which was confined to long-chain CoAs and due mainly to Acot7 and Acot13 activities. Matrix Acots occupied different functional niches, based on substrate specificity (Acot9 versus Acot2 and -13) and strong CoA inhibition (Acot7, -9, and -13, but not Acot2). Interpreted in the context of β-oxidation, CoA inhibition would prevent Acot-mediated suppression of β-oxidation, while providing a release valve when CoA is limiting. In contrast, CoA-insensitive Acot2 could provide a constitutive siphon for long-chain fatty acyl-CoAs. These results reveal how the family of matrix Acots can mitigate β-oxidation overload and prevent CoA limitation.
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Affiliation(s)
- Carmen Bekeova
- MitoCare Center, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
| | - Lauren Anderson-Pullinger
- MitoCare Center, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
| | - Kevin Boye
- MitoCare Center, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
| | - Felix Boos
- Division of Cellular Biology, Department of Biology, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Yana Sharpadskaya
- MitoCare Center, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
| | - Johannes M Herrmann
- Division of Cellular Biology, Department of Biology, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Erin L Seifert
- MitoCare Center, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
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Plataki M, Fan L, Sanchez E, Huang Z, Torres LK, Imamura M, Zhu Y, Cohen DE, Cloonan SM, Choi AM. Fatty acid synthase downregulation contributes to acute lung injury in murine diet-induced obesity. JCI Insight 2019; 5:127823. [PMID: 31287803 DOI: 10.1172/jci.insight.127823] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The prevalence of obesity is rising worldwide and obese patients comprise a specific population in the intensive care unit. Acute respiratory distress syndrome (ARDS) incidence is increased in obese patients. Exposure of rodents to hyperoxia mimics many of the features of ARDS. In this report, we demonstrate that high fat diet induced obesity increases the severity of hyperoxic acute lung injury in mice in part by altering fatty acid synthase (FASN) levels in the lung. Obese mice exposed to hyperoxia had significantly reduced survival and increased lung damage. Transcriptomic analysis of lung homogenates identified Fasn as one of the most significantly altered mitochondrial associated genes in mice receiving 60% compared to 10% fat diet. FASN protein levels in the lung of high fat diet mice were lower by immunoblotting and immunohistochemistry. Depletion of FASN in type II alveolar epithelial cells resulted in altered mitochondrial bioenergetics and more severe lung injury with hyperoxic exposure, even upon the administration of a 60% fat diet. This is the first study to show that a high fat diet leads to altered FASN expression in the lung and that both a high fat diet and reduced FASN expression in alveolar epithelial cells promote lung injury.
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Affiliation(s)
- Maria Plataki
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA.,NewYork-Presbyterian Hospital/Weill Cornell Medical Center, New York, New York, USA
| | - LiChao Fan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Elizabeth Sanchez
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Ziling Huang
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Lisa K Torres
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Mitsuru Imamura
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Yizhang Zhu
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - David E Cohen
- Division of Gastroenterology and Hepatology, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Augustine Mk Choi
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA.,NewYork-Presbyterian Hospital/Weill Cornell Medical Center, New York, New York, USA
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