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Zhu D, Zheng W, Kuang J, Wang Y, Deng X, Li X, Zhou W. Role of RIPK3 in lipid metabolism and postnatal overfeeding-induced metabolic disorders in mice. J Nutr Biochem 2024; 131:109688. [PMID: 38871059 DOI: 10.1016/j.jnutbio.2024.109688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 06/02/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
Postnatal overfeeding can increase the long-term risk of metabolic disorders, such as obesity, but the underlying mechanisms remain unclear and treatment approaches are limited. Receptor-interacting protein kinase 3 (RIPK3) is associated with several metabolic diseases. We investigated the effects of RIPK3 on neonatal overfeeding-related metabolic disorders. On postnatal day 3, litter sizes were adjusted to 9-10 (normal litters, NL) or 2-3 (small litters, SL) mice per dam to mimic postnatal overfeeding. After weaning, NL and SL mouse were fed normal diet. We generated an adeno-associated virus (AAV) carrying short hairpin RNA (shRNA) against Ripk3 and an empty vector as a control. The NL and SL groups were treated intravenously with 1×1012 vector genome of AAV vectors at week 6. The SL group showed a higher body weight than the NL group from week 3 of age through adulthood. At weeks 6 and 13, the SL group exhibited impaired glucose and insulin tolerance, RIPK3 up-regulation, and lipid accumulation in liver and adipose tissues. In the SL group, the genes involved in lipid synthesis and lipolysis were increased, whereas fatty acid β-oxidation-related genes were weakened in adipose tissue and liver. At week 13, AAV-shRNA-Ripk3 ameliorated adipose tissue hypertrophy, hepatic steatosis, insulin resistance, and dysregulated lipid metabolism in the adipose tissue and liver of SL mice. These findings support a novel mechanism underlying the pathogenesis of postnatal overfeeding-related metabolic disorders and suggest potential therapeutic targets.
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Affiliation(s)
- Dandan Zhu
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, 72 Guangzhou Road, Nanjing 210008, China
| | - Wen Zheng
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, 72 Guangzhou Road, Nanjing 210008, China
| | - Jiasi Kuang
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, 72 Guangzhou Road, Nanjing 210008, China
| | - Yueshu Wang
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, 72 Guangzhou Road, Nanjing 210008, China
| | - Xueting Deng
- Medical Center for Digestive Diseases, Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan Road, Nanjing 210011, China
| | - Xiaonan Li
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, 72 Guangzhou Road, Nanjing 210008, China.
| | - Wei Zhou
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, 72 Guangzhou Road, Nanjing 210008, China.
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Gato S, García-Fernández V, Gil-Gómez A, Rojas Á, Montero-Vallejo R, Muñoz-Hernández R, Romero-Gómez M. Navigating the Link Between Non-alcoholic Fatty Liver Disease/Non-alcoholic Steatohepatitis and Cardiometabolic Syndrome. Eur Cardiol 2024; 19:e03. [PMID: 38807856 PMCID: PMC11131154 DOI: 10.15420/ecr.2023.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 12/27/2023] [Indexed: 05/30/2024] Open
Abstract
The global prevalence of non-alcoholic fatty liver disease (NAFLD) is nearly 25% and is increasing rapidly. The spectrum of liver damage in NAFLD ranges from simple steatosis to non-alcoholic steatohepatitis, characterised by the presence of lobular inflammation and hepatocyte ballooning degeneration, with or without fibrosis, which can further develop into cirrhosis and hepatocellular carcinoma. Not only is NAFLD a progressive liver disease, but numerous pieces of evidence also point to extrahepatic consequences. Accumulating evidence suggests that patients with NAFLD are also at increased risk of cardiovascular disease (CVD); in fact, CVDs are the most common cause of mortality in patients with NAFLD. Obesity, type 2 diabetes and higher levels of LDL are common risk factors in both NAFLD and CVD; however, how NAFLD affects the development and progression of CVD remains elusive. In this review, we comprehensively summarise current data on the key extrahepatic manifestations of NAFLD, emphasising the possible link between NAFLD and CVD, including the role of proprotein convertase substilisin/kenin type 9, extracellular vesicles, microbiota, and genetic factors.
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Affiliation(s)
- Sheila Gato
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSeville, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)Madrid, Spain
| | - Vanessa García-Fernández
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSeville, Spain
| | - Antonio Gil-Gómez
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSeville, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)Madrid, Spain
| | - Ángela Rojas
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSeville, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)Madrid, Spain
| | - Rocío Montero-Vallejo
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSeville, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)Madrid, Spain
| | - Rocío Muñoz-Hernández
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSeville, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)Madrid, Spain
- Departamento de Fisiología, Facultad de Biología, Universidad de SevillaSeville, Spain
| | - Manuel Romero-Gómez
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSeville, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)Madrid, Spain
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen del RocíoSeville, Spain
- Departamento de Medicina, Facultad de Medicina, Universidad de SevillaSeville, Spain
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Fernandez CJ, Nagendra L, Pappachan JM. Metabolic Dysfunction-associated Fatty Liver Disease: An Urgent Call for Global Action. TOUCHREVIEWS IN ENDOCRINOLOGY 2024; 20:5-9. [PMID: 38812662 PMCID: PMC11132654 DOI: 10.17925/ee.2023.20.1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/13/2023] [Indexed: 05/31/2024]
Abstract
There has been an exponential increase in the global prevalence of fatty liver disease in recent years in association with the obesity pandemic worldwide. 'Metabolic dysfunction-associated fatty liver disease', the new terminology adopted by an international panel of experts in 2020 to largely replace the old term 'non-alcoholic fatty liver disease', has now been accepted by most hepatologists and diabetologists across the globe. The term metabolic dysfunction-associated fatty liver disease was created to better reflect the metabolicand liver-specific manifestations and complications of fatty liver disease. It is important to disseminate our current understanding of this enigmatic disease among the global scientific fraternity. Recent publications, including articles from the latest issue of Endocrinology & Metabolism Clinics of North America, are attempting to fill this knowledge gap.
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Affiliation(s)
- Cornelius J Fernandez
- Department of Endocrinology & Metabolism, Pilgrim Hospital, United Lincolnshire Hospitals NHS Trust, Boston, UK
| | - Lakshmi Nagendra
- Department of Endocrinology, JSS Medical College, JSS Academy of Higher Education and Research, Mysore, India
| | - Joseph M Pappachan
- Department of Endocrinology & Metabolism, Lancashire Teaching Hospitals NHS Trust, Preston, UK
- Faculty of Science, Manchester Metropolitan University, Manchester, UK
- Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
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Zhang X, Li J, Yang M, Huang H, Wang H, Zhang H. Accurate and sensitive low-density lipoprotein (LDL) detection based on the proximity ligation assisted rolling circle amplification (RCA). ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1894-1900. [PMID: 38482952 DOI: 10.1039/d4ay00070f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Metabolic-associated fatty liver disease (MAFLD) is one of the leading causes of mortality from chronic diseases worldwide, and it is strongly linked to dyslipidemia. Dyslipidemia typically presents as an elevated concentration of low density lipoprotein (LDL). Hence, accurate quantification of LDL particles is crucial for predicting the risks of cardiovascular illnesses. Nevertheless, conventional techniques can merely provide indirect measurements of LDL particle concentrations through the detection of cholesterol or proteins within LDL particles, and they often require significant effort and time. Therefore, an accurate and effective method for identifying intact LDL particles is highly desired. We have devised a method that allows for the measurement of LDL concentration without the need for isolation. This method relies on proximity ligation rolling circle amplification (RCA). This technique enables the direct and precise measurement of the concentration of "actual" LDL particles, rather than measuring the cholesterol content inside LDL. It has a detection limit of 7.3 μg dL-1, which also meets the requirements for analyzing lipoproteins in clinical samples. Hence, this platform exhibits immense potential in clinical applications and health management.
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Affiliation(s)
- Xingyu Zhang
- Department of Endocrinology, People's Hospital of Chongqing Liang Jiang New Area, No. 199, Renxing Road, Chongqing, China 401121.
| | - Jie Li
- Department of Clinical Biochemistry, The Key Laboratory of Laboratory Medical Diagnostics in the Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China 400016
| | - Mei Yang
- Department of Endocrinology, People's Hospital of Chongqing Liang Jiang New Area, No. 199, Renxing Road, Chongqing, China 401121.
| | - Hong Huang
- Department of Clinical Laboratory, People's Hospital of Chongqing Liang Jiang New Area, Chongqing, China 401121
| | - Hao Wang
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China 400016
| | - Hongmin Zhang
- Department of Endocrinology, People's Hospital of Chongqing Liang Jiang New Area, No. 199, Renxing Road, Chongqing, China 401121.
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Fang M, Liu X, Xu W, Wang X, Xu L, Zhao TJ, Li P, Yang H. Paxillin family proteins Hic-5 and LPXN promote lipid storage by regulating the ubiquitination degradation of CIDEC. J Biol Chem 2024; 300:105610. [PMID: 38159847 PMCID: PMC10850781 DOI: 10.1016/j.jbc.2023.105610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/16/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024] Open
Abstract
Many metabolic diseases are caused by disorders of lipid homeostasis. CIDEC, a lipid droplet (LD)-associated protein, plays a critical role in controlling LD fusion and lipid storage. However, regulators of CIDEC remain largely unknown. Here, we established a homogeneous time-resolved fluorescence (HTRF)-based high-throughput screening method and identified LPXN as a positive regulatory candidate for CIDEC. LPXN and Hic-5, the members of the Paxillin family, are focal adhesion adaptor proteins that contribute to the recruitment of specific kinases and phosphatases, cofactors, and structural proteins, participating in the transduction of extracellular signals into intracellular responses. Our data showed that Hic-5 and LPXN significantly increased the protein level of CIDEC and enhanced CIDEC stability not through triacylglycerol synthesis and FAK signaling pathways. Hic-5 and LPXN reduced the ubiquitination of CIDEC and inhibited its proteasome degradation pathway. Furthermore, Hic-5 and LPXN enlarged LDs and promoted lipid storage in adipocytes. Therefore, we identified Hic-5 and LPXN as novel regulators of CIDEC. Our current findings also suggest intervention with Hic-5 and LPXN might ameliorate ectopic fat storage by enhancing the lipid storage capacity of white adipose tissues.
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Affiliation(s)
- Mingyu Fang
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Xu Liu
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Wenbo Xu
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Xing Wang
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Lin Xu
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China
| | - Tong-Jin Zhao
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China; Tianjian Laboratory of Advanced Biomedical Sciences, Institute of Advanced Biomedical Sciences, Zhengzhou University, Zhengzhou, Henan, China; Shanghai Qi Zhi Institute, Shanghai, China
| | - Peng Li
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China; Tianjian Laboratory of Advanced Biomedical Sciences, Institute of Advanced Biomedical Sciences, Zhengzhou University, Zhengzhou, Henan, China; Shanghai Qi Zhi Institute, Shanghai, China
| | - Hui Yang
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Fudan University, Shanghai, China.
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