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Charidemou E, Noberini R, Ghirardi C, Georgiou P, Marcou P, Theophanous A, Strati K, Keun H, Behrends V, Bonaldi T, Kirmizis A. Hyperacetylated histone H4 is a source of carbon contributing to lipid synthesis. EMBO J 2024; 43:1187-1213. [PMID: 38383863 PMCID: PMC10987603 DOI: 10.1038/s44318-024-00053-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 01/12/2024] [Accepted: 01/31/2024] [Indexed: 02/23/2024] Open
Abstract
Histone modifications commonly integrate environmental cues with cellular metabolic outputs by affecting gene expression. However, chromatin modifications such as acetylation do not always correlate with transcription, pointing towards an alternative role of histone modifications in cellular metabolism. Using an approach that integrates mass spectrometry-based histone modification mapping and metabolomics with stable isotope tracers, we demonstrate that elevated lipids in acetyltransferase-depleted hepatocytes result from carbon atoms derived from deacetylation of hyperacetylated histone H4 flowing towards fatty acids. Consistently, enhanced lipid synthesis in acetyltransferase-depleted hepatocytes is dependent on histone deacetylases and acetyl-CoA synthetase ACSS2, but not on the substrate specificity of the acetyltransferases. Furthermore, we show that during diet-induced lipid synthesis the levels of hyperacetylated histone H4 decrease in hepatocytes and in mouse liver. In addition, overexpression of acetyltransferases can reverse diet-induced lipogenesis by blocking lipid droplet accumulation and maintaining the levels of hyperacetylated histone H4. Overall, these findings highlight hyperacetylated histones as a metabolite reservoir that can directly contribute carbon to lipid synthesis, constituting a novel function of chromatin in cellular metabolism.
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Affiliation(s)
- Evelina Charidemou
- Department of Biological Sciences, University of Cyprus, 2109, Nicosia, Cyprus
| | - Roberta Noberini
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139, Milan, Italy
- Department of Oncology and Haematology-Oncology, University of Milano, Via Festa del Perdono 7, 20122, Milano, Italy
| | - Chiara Ghirardi
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139, Milan, Italy
- Department of Oncology and Haematology-Oncology, University of Milano, Via Festa del Perdono 7, 20122, Milano, Italy
| | - Polymnia Georgiou
- Department of Biological Sciences, University of Cyprus, 2109, Nicosia, Cyprus
| | - Panayiota Marcou
- Department of Biological Sciences, University of Cyprus, 2109, Nicosia, Cyprus
| | - Andria Theophanous
- Department of Biological Sciences, University of Cyprus, 2109, Nicosia, Cyprus
| | - Katerina Strati
- Department of Biological Sciences, University of Cyprus, 2109, Nicosia, Cyprus
| | - Hector Keun
- Cancer Metabolism & Systems Toxicology Group, Division of Cancer, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Volker Behrends
- School of Life and Health Sciences, Whitelands College, University of Roehampton, London, UK
| | - Tiziana Bonaldi
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139, Milan, Italy
- Department of Oncology and Haematology-Oncology, University of Milano, Via Festa del Perdono 7, 20122, Milano, Italy
| | - Antonis Kirmizis
- Department of Biological Sciences, University of Cyprus, 2109, Nicosia, Cyprus.
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Sun T, Chen J, Yang F, Zhang G, Chen J, Wang X, Zhang J. Lipidomics reveals new lipid-based lung adenocarcinoma early diagnosis model. EMBO Mol Med 2024; 16:854-869. [PMID: 38467839 PMCID: PMC11018865 DOI: 10.1038/s44321-024-00052-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 02/21/2024] [Accepted: 02/27/2024] [Indexed: 03/13/2024] Open
Abstract
Lung adenocarcinoma (LUAD) continues to pose a significant mortality risk with a lack of dependable biomarkers for early noninvasive cancer detection. Here, we find that aberrant lipid metabolism is significantly enriched in lung cancer cells. Further, we identified four signature lipids highly associated with LUAD and developed a lipid signature-based scoring model (LSRscore). Evaluation of LSRscore in a discovery cohort reveals a robust predictive capability for LUAD (AUC: 0.972), a result further validated in an independent cohort (AUC: 0.92). We highlight one lipid signature biomarker, PE(18:0/18:1), consistently exhibiting altered levels both in cancer tissue and in plasma of LUAD patients, demonstrating significant predictive power for early-stage LUAD. Transcriptome analysis reveals an association between increased PE(18:0/18:1) levels and dysregulated glycerophospholipid metabolism, which consistently displays strong prognostic value across two LUAD cohorts. The combined utility of LSRscore and PE(18:0/18:1) holds promise for early-stage diagnosis and prognosis of LUAD.
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Affiliation(s)
- Ting Sun
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, 100083, Beijing, China
| | - Junge Chen
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Engineering Medicine, Beihang University, 100083, Beijing, China
| | - Fan Yang
- Department of Thoracic Surgery, Peking University People's Hospital, 100044, Beijing, China
- Thoracic Oncology Institute, Peking University People's Hospital, 100044, Beijing, China
| | - Gang Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, 100190, Beijing, China
| | - Jiahao Chen
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, 100083, Beijing, China
| | - Xun Wang
- Department of Thoracic Surgery, Peking University People's Hospital, 100044, Beijing, China.
- Thoracic Oncology Institute, Peking University People's Hospital, 100044, Beijing, China.
| | - Jing Zhang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, 100083, Beijing, China.
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Engineering Medicine, Beihang University, 100083, Beijing, China.
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Dark C, Ali N, Golenkina S, Dhyani V, Blazev R, Parker BL, Murphy KT, Lynch GS, Senapati T, Millard SS, Judge SM, Judge AR, Giri L, Russell SM, Cheng LY. Mitochondrial fusion and altered beta-oxidation drive muscle wasting in a Drosophila cachexia model. EMBO Rep 2024; 25:1835-1858. [PMID: 38429578 PMCID: PMC11014992 DOI: 10.1038/s44319-024-00102-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 01/28/2024] [Accepted: 02/08/2024] [Indexed: 03/03/2024] Open
Abstract
Cancer cachexia is a tumour-induced wasting syndrome, characterised by extreme loss of skeletal muscle. Defective mitochondria can contribute to muscle wasting; however, the underlying mechanisms remain unclear. Using a Drosophila larval model of cancer cachexia, we observed enlarged and dysfunctional muscle mitochondria. Morphological changes were accompanied by upregulation of beta-oxidation proteins and depletion of muscle glycogen and lipid stores. Muscle lipid stores were also decreased in Colon-26 adenocarcinoma mouse muscle samples, and expression of the beta-oxidation gene CPT1A was negatively associated with muscle quality in cachectic patients. Mechanistically, mitochondrial defects result from reduced muscle insulin signalling, downstream of tumour-secreted insulin growth factor binding protein (IGFBP) homologue ImpL2. Strikingly, muscle-specific inhibition of Forkhead box O (FOXO), mitochondrial fusion, or beta-oxidation in tumour-bearing animals preserved muscle integrity. Finally, dietary supplementation with nicotinamide or lipids, improved muscle health in tumour-bearing animals. Overall, our work demonstrates that muscle FOXO, mitochondria dynamics/beta-oxidation and lipid utilisation are key regulators of muscle wasting in cancer cachexia.
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Affiliation(s)
- Callum Dark
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Nashia Ali
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Sofya Golenkina
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Vaibhav Dhyani
- Bioimaging and Data Analysis Lab, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana, India
- Optical Science Centre, Faculty of Science, Engineering & Technology, Swinburne University of Technology, Hawthorn, Melbourne, VIC, Australia
| | - Ronnie Blazev
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Benjamin L Parker
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Kate T Murphy
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Gordon S Lynch
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Tarosi Senapati
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Queensland, QLD, 4072, Australia
| | - S Sean Millard
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Queensland, QLD, 4072, Australia
| | - Sarah M Judge
- Department of Physical Therapy, College of Public Health and Health Professions, University of Florida, Florida, FL, 32603, USA
| | - Andrew R Judge
- Department of Physical Therapy, College of Public Health and Health Professions, University of Florida, Florida, FL, 32603, USA
| | - Lopamudra Giri
- Bioimaging and Data Analysis Lab, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana, India
| | - Sarah M Russell
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Optical Science Centre, Faculty of Science, Engineering & Technology, Swinburne University of Technology, Hawthorn, Melbourne, VIC, Australia
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Louise Y Cheng
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia.
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia.
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia.
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Zhai H, Zheng T, Fan L. Unveiling the STAT3-ACC1 axis: a key driver of lipid metabolism and tumor progression in non-small cell lung cancer. J Cancer 2024; 15:2340-2353. [PMID: 38495496 PMCID: PMC10937262 DOI: 10.7150/jca.93890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/19/2024] [Indexed: 03/19/2024] Open
Abstract
Background and Objective: Lung cancer is a prevalent global malignancy, and investigating the metabolic reprogramming of tumor cells has significant therapeutic implications. This study aims to explore the molecular mechanism driving the progression of non-small cell lung cancer (NSCLC), with a specific emphasis on the STAT3-ACC1-FAS axis involved in fatty acid synthesis. Methods: The levels of Signal transducer and activator of transcription 3 (STAT3) and acetyl-CoA carboxylase 1 (ACC1) were determined in mouse NSCLC specimens and cell lines using Western blot and qPCR methods. Various assays such as CCK-8, colony formation, EDU, wound-healing, and transwell migration were employed to assess cancer cell proliferation, migration, and invasion. Additionally, a nude mouse xenograft model was utilized for in vivo tumor growth analysis. The interaction between STAT3 and ACC1 was examined through chromatin immunoprecipitation and dual-luciferase assays. Results: The study observed upregulation of STAT3 and ACC1 in NSCLC tissues. Notably, the suppression of STAT3 and ACC1 inhibited the in vitro progression and lipid synthesis of NSCLC cells. Furthermore, STAT3 enhanced lipid synthesis by upregulating ACC1 expression. Mechanistic assays revealed that this process occurred through direct activation of ACC1 transcription by STAT3. STAT3 played a vital role in regulating lipid metabolism and supporting NSCLC progression. Conclusion: The findings of this study underscore the significance of the STAT3-ACC1-FAS axis in NSCLC. The activation of ACC1 through STAT3-mediated transcription serves as a crucial mechanism for stimulating the progression of NSCLC tumors and promoting lipid synthesis. Consequently, targeting the STAT3-ACC1 axis may present a promising avenue for the diagnosis and treatment of NSCLC patients.
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Affiliation(s)
- Hong Zhai
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai200072, China
| | - Tiansheng Zheng
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai200072, China
| | - Lihong Fan
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai200072, China
- Department of Integrated Traditional Chinese and Western Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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Zhou Y, Chen X, Su T, Yuan M, Sun X. Kiwifruit Peel Extract Improves the Alterations in Lipid Metabolism in High-fat Diet-fed Model Rats. Plant Foods Hum Nutr 2024; 79:113-119. [PMID: 38200210 DOI: 10.1007/s11130-023-01132-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/09/2023] [Indexed: 01/12/2024]
Abstract
Previous studies have demonstrated that the kiwifruit peel, which is usually discarded by consumers and factories, has the highest polyphenol content among all parts of the kiwifruit. To maximize the utilization of these waste resources, the aim of this study was to examine the regulatory effects of polyphenols extracted from kiwifruit peel (KPE) on lipid metabolism and investigate their underlying mechanisms. Thirty-two male Sprague‒Dawley rats were divided into four groups: those fed a normal diet, those fed a high-fat (HF) diet, and those fed a HF diet with a low dose of KPE solution (50 mg/kg) or a high dose of KPE (100 mg/kg) by gavage. The findings of the study revealed that KPE effectively reduced body weight gain and the increases in triglycerides and total cholesterol in serum induced by the HF diet (HFD). Additionally, KPE supplementation led to a significant decrease in hepatic fat accumulation, potentially by increasing hepatic oxidation abilities. Hepatic lipidomics demonstrated that KPE influenced various metabolic pathways, including linoleic acid metabolism, steroid biosynthesis, and the biosynthesis of unsaturated fatty acids in HFD-induced rats, which were associated with the downregulation of FATP2, ACC, FAS, GPAT, DGTA1, DGTA2, and PPARγ expression as well as the upregulation of AMPK, PGC-1α, CPT-1, and PPARα expression. These findings suggest that KPE has considerable regulatory effects in rats with dyslipidaemia, which may provide supporting information for the reuse of kiwifruit peel.
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Affiliation(s)
- Yan Zhou
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China.
| | - Xiao Chen
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China
| | - Tianxia Su
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China
| | - Minlan Yuan
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China
| | - Xiaohong Sun
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China
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6
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Zheng L, Tian S, Yang C, Li B, Jia G, Liu Y, Sun R, Wang X, Deng J, Zhang M, Cui L, Guo C, Zhou X, Leung PSC, Bowlus CL, Gershwin ME, Shang Y, Han Y. Hypercholesterolemia Is Associated With Dysregulation of Lipid Metabolism and Poor Prognosis in Primary Biliary Cholangitis. Clin Gastroenterol Hepatol 2024:S1542-3565(24)00167-8. [PMID: 38354969 DOI: 10.1016/j.cgh.2024.01.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 01/12/2024] [Accepted: 01/23/2024] [Indexed: 02/16/2024]
Abstract
BACKGROUND & AIMS Hypercholesterolemia is frequently diagnosed in patients with primary biliary cholangitis (PBC). However, its association with the prognosis and lipid metabolism is unknown. In this study, we aimed to investigate the prognostic value of baseline total cholesterol (TC) levels in PBC and characterized the associated lipid metabolism. METHODS Five hundred and thirty-one patients with PBC without prior cirrhosis-related complications were randomly divided into the derivation and validation cohorts at a ratio of 7:3. Complete clinical data were obtained and analyzed. The endpoints were defined as liver-related death, liver transplantation, and cirrhosis-related complications. Lipidomics was performed in 89 patients and 28 healthy controls. RESULTS Baseline TC was independently associated with poor liver-related outcomes, and adjusted C-statistics were 0.80 (95% confidence interval [CI]: 0.74-0.85) and 0.88 (95% CI: 0.78-0.91) in the derivation and validation cohorts, respectively. The predictive ability of TC for disease outcomes was stable over time and comparable with the Globe score. The 200 mg/dL cut-off optimally divided patients into low- and high-TC groups. A combination of TC and Globe score provided a more accurate stratification of patients into risk subgroups. Lipidomics indicated an up-regulation of lipid families in high-TC patients. Pathway analysis of 66 up-regulated lipids revealed the dysregulation of glycerophospholipid and sphingolipid metabolism in high-TC patients, which were associated with poor liver-related outcomes. CONCLUSIONS Our results indicate that patients with PBC having baseline TC levels above 200 mg/dL have unique lipidome characteristics and are at a higher risk of poor liver-related outcomes.
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Affiliation(s)
- Linhua Zheng
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Siyuan Tian
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Chunmei Yang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Bo Li
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Gui Jia
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Yansheng Liu
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Ruiqing Sun
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Xiufang Wang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Juan Deng
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Miao Zhang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Lina Cui
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Changcun Guo
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Xinmin Zhou
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Patrick S C Leung
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Davis, California
| | - Christopher L Bowlus
- Division of Gastroenterology and Hepatology, University of California at Davis School of Medicine, Davis, California
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Davis, California.
| | - Yulong Shang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China.
| | - Ying Han
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China.
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Mozaffaritabar S, Koltai E, Zhou L, Bori Z, Kolonics A, Kujach S, Gu Y, Koike A, Boros A, Radák Z. PGC-1α activation boosts exercise-dependent cellular response in the skeletal muscle. J Physiol Biochem 2024:10.1007/s13105-024-01006-1. [PMID: 38261146 DOI: 10.1007/s13105-024-01006-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 01/10/2024] [Indexed: 01/24/2024]
Abstract
The role of Peroxisome proliferator-activated receptor-gamma coactivator alpha (PGC-1α) in fat metabolism is not well known. In this study, we compared the mechanisms of muscle-specific PGC-1α overexpression and exercise-related adaptation-dependent fat metabolism. PGC-1α trained (PGC-1α Ex) and wild-trained (wt-ex) mice were trained for 10 weeks, five times a week at 30 min per day with 60 percent of their maximal running capacity. The PGC-1α overexpressed animals exhibited higher levels of Fibronectin type III domain-containing protein 5 (FNDC5), 5' adenosine monophosphate-activated protein kinase alpha (AMPK-α), the mammalian target of rapamycin (mTOR), Sirtuin 1 (SIRT1), Lon protease homolog 1 (LONP1), citrate synthase (CS), succinate dehydrogenase complex flavoprotein subunit A (SDHA), Mitofusin-1 (Mfn1), endothelial nitric oxide synthase (eNOS), Hormone-sensitive lipase (HSL), adipose triglyceride lipase (ATGL), G protein-coupled receptor 41 (GPR41), and Phosphatidylcholine Cytidylyltransferase 2 (PCYT2), and lower levels of Sirtuin 3 (SIRT3) compared to wild-type animals. Exercise training increased the protein content levels of SIRT1, HSL, and ATGL in both the wt-ex and PGC-1α trained groups. PGC-1α has a complex role in cellular signaling, including the upregulation of lipid metabolism-associated proteins. Our data reveals that although exercise training mimics the effects of PGC-1α overexpression, it incorporates some PGC-1α-independent adaptive mechanisms in fat uptake and cell signaling.
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Affiliation(s)
- Soroosh Mozaffaritabar
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, 1123, Budapest, Hungary
| | - Erika Koltai
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, 1123, Budapest, Hungary
| | - Lei Zhou
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, 1123, Budapest, Hungary
| | - Zoltan Bori
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, 1123, Budapest, Hungary
| | - Attila Kolonics
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, 1123, Budapest, Hungary
| | - Sylwester Kujach
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, 1123, Budapest, Hungary
- Department of Neurophysiology, Neuropsychology and Neuroinformatics, Faculty of Health Sciences, Medical University of Gdansk, 80-210, Gdansk, Poland
| | - Yaodong Gu
- Faculty of Sports Science, Ningbo University, Ningbo, 315211, China
| | - Atsuko Koike
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, 1123, Budapest, Hungary
| | - Anita Boros
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, 1123, Budapest, Hungary
| | - Zsolt Radák
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, 1123, Budapest, Hungary.
- Waseda Institute for Sport Sciences, Waseda University, Saitama, 359-1192, Japan.
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Jiang MH, Zhang T, Wang QM, Ge JS, Sun LL, Li MQ, Miao QY, Zhu YZ. Effects of enzymolysis and fermentation of Chinese herbal medicines on serum component, egg production, and hormone receptor expression in laying hens. Anim Biosci 2024; 37:95-104. [PMID: 37905322 PMCID: PMC10766462 DOI: 10.5713/ab.23.0146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/11/2023] [Accepted: 09/04/2023] [Indexed: 11/02/2023] Open
Abstract
OBJECTIVE In the present study, we aimed to investigate the effects of enzymolysis fermentation of Chinese herbal medicines (CHMs) on egg production performance, egg quality, lipid metabolism, serum reproductive hormone levels, and the mRNA expression of the ovarian hormone receptor of laying hens in the late-laying stage. METHODS A total of 360 Hy-Line Brown laying hens (age, 390 days) were randomly categorized into four groups. Hens in the control (C) group were fed a basic diet devoid of CHMs, the crushed CHM (CT), fermented CHM (FC), and enzymatically fermented CHM (EFT) groups received diets containing 2% crushed CHM, 2% fermented CHM, and 2% enzymatically fermented CHM, respectively. RESULTS Compared with crushed CHM, the acid detergent fiber, total flavonoids, and total saponins contents of fermented CHM showed improvement (p<0.05); furthermore, the neutral and acid detergent fiber, total flavonoids, and total saponins contents of enzymatically fermented CHM improved (p<0.05). At 5 to 8 weeks, hens in the FC and EFT groups showed increased laying rates, haugh unit, albumin height, yolk color, shell thickness, and shell strength compared with those in the C group (p<0.05). Compared with the FC group, the laying rate, albumin height, and Shell thickness in the EFT group was increased (p<0.05). Compared with the C, CT, and FC groups, the EFT group showed reduced serum total cholesterol and increased serum luteinizing hormone levels and mRNA expressions of follicle stimulating hormone receptor and luteinizing hormone receptor (p<0.05). CONCLUSION These results indicated that the ETF group improved the laying rate and egg quality and regulated the lipid metabolism in aged hens. The mechanism underlying this effect was likely related to cell wall degradation of CHM and increased serum levels of luteinizing hormone and mRNA expression of the ovarian hormone receptor.
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Affiliation(s)
- Mei Hong Jiang
- Key Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100,
China
| | - Tao Zhang
- Key Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100,
China
| | - Qing Ming Wang
- Shandong Jinghua Agriculture and Animal Husbandry Development Co., Ltd., Zhucheng 262200,
China
| | - Jin Shan Ge
- Shandong Zhongcheng Feed Technology Co., Ltd., Feicheng 271600,
China
| | - Lu Lu Sun
- Key Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100,
China
| | - Meng Qi Li
- Key Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100,
China
| | - Qi Yuan Miao
- Key Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100,
China
| | - Yuan Zhao Zhu
- Key Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100,
China
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Cao Y, Zeng T, Han W, Ma X, Gu T, Chen L, Tian Y, Xu W, Yin J, Li G, Lu L, Gun S. Comparative analysis of liver transcriptome reveals adaptive responses to hypoxia environmental condition in Tibetan chicken. Anim Biosci 2024; 37:28-38. [PMID: 37641844 PMCID: PMC10766467 DOI: 10.5713/ab.23.0126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/25/2023] [Accepted: 07/11/2023] [Indexed: 08/31/2023] Open
Abstract
OBJECTIVE Tibetan chickens, which have unique adaptations to extreme high-altitude environments, exhibit phenotypic and physiological characteristics that are distinct from those of lowland chickens. However, the mechanisms underlying hypoxic adaptation in the liver of chickens remain unknown. METHODS RNA-sequencing (RNA-Seq) technology was used to assess the differentially expressed genes (DEGs) involved in hypoxia adaptation in highland chickens (native Tibetan chicken [HT]) and lowland chickens (Langshan chicken [LS], Beijing You chicken [BJ], Qingyuan Partridge chicken [QY], and Chahua chicken [CH]). RESULTS A total of 352 co-DEGs were specifically screened between HT and four native lowland chicken breeds. Gene ontology and Kyoto encyclopedia of genes and genomes enrichment analyses indicated that these co-DEGs were widely involved in lipid metabolism processes, such as the peroxisome proliferator-activated receptors (PPAR) signaling pathway, fatty acid degradation, fatty acid metabolism and fatty acid biosynthesis. To further determine the relationship from the 352 co-DEGs, protein-protein interaction network was carried out and identified eight genes (ACSL1, CPT1A, ACOX1, PPARC1A, SCD, ACSBG2, ACACA, and FASN) as the potential regulating genes that are responsible for the altitude difference between the HT and other four lowland chicken breeds. CONCLUSION This study provides novel insights into the molecular mechanisms regulating hypoxia adaptation via lipid metabolism in Tibetan chickens and other highland animals.
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Affiliation(s)
- Yongqing Cao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070,
China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, Hangzhou 310021,
China
| | - Tao Zeng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, Hangzhou 310021,
China
| | - Wei Han
- Jiangsu Institute of Poultry Science, Yangzhou 225125,
China
- Technology Innovation Co., Ltd., Jiangsu Institute of Poultry Science, Yangzhou 211412,
China
| | - Xueying Ma
- Institute of Animal Husbandry and Veterinary Medicine, Tibet Academy Agricultural and Animal Husbandry Sciences, Lhasa 850004,
China
| | - Tiantian Gu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, Hangzhou 310021,
China
| | - Li Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, Hangzhou 310021,
China
- China-Ukraine Joint Research Center for Protection, Exploitation and Utilization of Poultry Germplasm Resources, Hangzhou 310021,
China
| | - Yong Tian
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, Hangzhou 310021,
China
| | - Wenwu Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, Hangzhou 310021,
China
| | - Jianmei Yin
- Jiangsu Institute of Poultry Science, Yangzhou 225125,
China
- Technology Innovation Co., Ltd., Jiangsu Institute of Poultry Science, Yangzhou 211412,
China
| | - Guohui Li
- Jiangsu Institute of Poultry Science, Yangzhou 225125,
China
- Technology Innovation Co., Ltd., Jiangsu Institute of Poultry Science, Yangzhou 211412,
China
| | - Lizhi Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Science, Hangzhou 310021,
China
- China-Ukraine Joint Research Center for Protection, Exploitation and Utilization of Poultry Germplasm Resources, Hangzhou 310021,
China
| | - Shuangbao Gun
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070,
China
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Wang Y, Yin Q, Yang D, Jin H, Yao Y, Song J, Liu C, Nie Y, Yin H, Wang W, Xu B, Xue L, Ji X, Chen X, Zhao H. LCP1 knockdown in monocyte-derived macrophages: mitigating ischemic brain injury and shaping immune cell signaling and metabolism. Theranostics 2024; 14:159-175. [PMID: 38164159 PMCID: PMC10750214 DOI: 10.7150/thno.88678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/31/2023] [Indexed: 01/03/2024] Open
Abstract
Rationale: Ischemic stroke poses a significant health burden with limited treatment options. Lymphocyte Cytosolic Protein 1 (LCP1) facilitates cell migration and immune responses by aiding in actin polymerization, cytoskeletal rearrangements, and phagocytosis. We have demonstrated that the long non-coding RNA (lncRNA) Maclpil silencing in monocyte-derived macrophages (MoDMs) led to LCP1 inhibition, reducing ischemic brain damage. However, the role of LCP1 of MoDMs in ischemic stroke remains unknown. Methods and Results: We investigated the impact of LCP1 on ischemic brain injury and immune cell signaling and metabolism. We found that knockdown of LCP1 in MoDMs demonstrated robust protection against ischemic infarction and improved neurological behaviors in mice. Utilizing the high-dimensional CyTOF technique, we demonstrated that knocking down LCP1 in MoDMs led to a reduction in neuroinflammation and attenuation of lymphopenia, which is linked to immunodepression. It also showed altered immune cell signaling by modulating the phosphorylation levels of key kinases and transcription factors, including p-PLCg2, p-ERK1/2, p-EGFR, p-AKT, and p4E-BP1 as well as transcription factors like p-STAT1, p-STAT3, and p-STAT4. Further bioinformatic analysis indicated that Akt and EGFR are particularly involved in fatty acid metabolism and glycolysis. Indeed, single-cell sequencing analysis confirmed that enrichment of fatty acid and glycolysis metabolism in Lcp1high monocytes/macrophages. Furthermore, Lcp1high cells exhibited enhanced oxidative phosphorylation, chemotaxis, migration, and ATP biosynthesis pathways. In vitro experiments confirmed the role of LCP1 in regulating mitochondrial function and fatty acid uptake. Conclusions: These findings contribute to a deeper understanding of LCP1 in the context of ischemic stroke and provide valuable insights into potential therapeutic strategies targeting LCP1 and metabolic pathways, aiming to attenuating neuroinflammation and lymphopenia.
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Affiliation(s)
- Yan Wang
- Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
- Department of Neurosurgery, Stanford University School of Medicine, 1201 Welch Road, MSLS Building, Stanford, USA
| | - Qianqian Yin
- Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
| | - Decao Yang
- Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
| | - Haojie Jin
- The Key Laboratory for Silviculture and Conservation of Ministry of Education, The College of forestry, Beijing Forestry University, Beijing, China
| | - Yang Yao
- Department of Neurosurgery, Stanford University School of Medicine, 1201 Welch Road, MSLS Building, Stanford, USA
| | - Jibing Song
- College of Chemistry, Beijing University of Chemical Technology, China
| | - Cuiying Liu
- School of Nursing, Capital Medical University, Beijing, China
| | - Yu Nie
- Fuwai Hospital, National Centre for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Hao Yin
- Organ Transplant Center, Shanghai Changzheng Hospital, Shanghai, China
| | - Wei Wang
- Cell Transplantation and Gene Therapy Institute, The Third Xiang Ya Hospital, Central South University, Changsha, Hunan, China
- Engineering and Technology Research Center for Xenotransplantation of Hunan Province, Changsha, China
| | - Baohui Xu
- Department of Surgery, Stanford University School of Medicine, 1201 Welch Road, MSLS Building, Stanford, USA
| | - Lixiang Xue
- Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
| | - Xunming Ji
- Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China
| | - Xiaoyuan Chen
- Department of Diagnostic Radiology, Nanomedicine Translational Research Program, NUS Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Heng Zhao
- Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China
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11
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Hamounpeyma E, Dehghani H, Dashtgard A, Sabouni N, Marzouni HZ. The potential protective effect of aqueous extract of Acanthophyllum glandulosum root on Streptozotocin-induced diabetes in mice. J Diabetes Metab Disord 2023; 22:1231-1243. [PMID: 37975083 PMCID: PMC10638328 DOI: 10.1007/s40200-023-01238-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 05/09/2023] [Indexed: 11/19/2023]
Abstract
Purpose Treatment of diabetes using traditional medicine has attracted attention in recent decades because of its unique benefits. Acanthophyllum glandulosum is known as an herb with therapeutic potential. This research explored the likely protective effects of Acanthophyllum Glandulosum Root (AGR) in mice with Streptozotocin-induced type 2 diabetes mellitus (T2DM) to provide complementary therapy. Methods Diabetes was induced by a single injection of Streptozotocin (STZ) in mice. STZ-diabetic mice were treated with oral dosages of AGR (25, 50, 100, and 200 mg/kg) on different experiment days. During the experiment, the effect of a topical extract of AGR on Glucose level, serum lipid profile, and liver and kidney biomarkers, with the histopathological assessment of heart, kidney, spleen, and liver, were investigated. The gene expression level of inflammation biomarkers (Tumour Necrosis Factor-alpha (TNF-α) and interleukin-1 (IL-1)), apoptosis factor (Caspase3), glucose regulatory genes (Glucose transporter (GLUT) 4 and 2), and lipid regulatory gene (Adenosine 50-monophosphate protein-kinase (AMPK)) were investigated. Results Administration of AGR to STZ-diabetic mice decreased blood glucose level (p < 0.01), normalized the lipid profile (p < 0.01), improved the serum level of kidney (p < 0.01) and liver biomarkers (p < 0.01), and normalized Kidney hypertrophy (p < 0.01), inflammation (p < 0.001), and apoptosis (p < 0.01). The AGR effect was better at 100 mg/kg than Metformin (100 mg/kg) on healing T2DM condition in mice. Conclusion AGR possesses anti-inflammatory, antioxidant, anti-hyperglycemic, anti-hyperlipidemic, and anti-glycation activity, thus exhibiting a protective function in STZ-induced diabetic mice. Further in vitro and in vivo works are necessary, especially to elucidate the mechanism of action of AGR at the cellular and molecular levels.
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Affiliation(s)
- Esmaeil Hamounpeyma
- Qaen Faculty of Medical Sciences, Birjand University of Medical Sciences, Birjand, Iran
| | - Hossein Dehghani
- Qaen Faculty of Medical Sciences, Birjand University of Medical Sciences, Birjand, Iran
| | - Ali Dashtgard
- Qaen Faculty of Medical Sciences, Birjand University of Medical Sciences, Birjand, Iran
| | - Nasim Sabouni
- Department of Immunology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hadi Zare Marzouni
- Qaen Faculty of Medical Sciences, Birjand University of Medical Sciences, Birjand, Iran
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12
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Kanta JM, Deisen L, Johann K, Holm S, Lundsgaard A, Lund J, Jähnert M, Schürmann A, Clemmensen C, Kiens B, Fritzen AM, Kleinert M. Dietary Medium-Chain Fatty Acids Reduce Food Intake via the GDF15-GFRAL Axis in Mice. Mol Metab 2023:101760. [PMID: 37356805 PMCID: PMC10394102 DOI: 10.1016/j.molmet.2023.101760] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/07/2023] [Accepted: 06/21/2023] [Indexed: 06/27/2023] Open
Abstract
OBJECTIVE Medium chain fatty acids (MCFAs), which are fatty acids with chain lengths of 8 to 12 carbon atoms, have been shown to reduce food intake in rodents and humans, but the underlying mechanisms are unknown. Unlike most other fatty acids, MCFAs are absorbed from the intestine into the portal vein and enter first the liver. We thus hypothesized that MCFAs trigger the release of hepatic factors that reduce appetite. METHODS The liver transcriptome in mice that were orally administered MCFAs as C8:0 triacylglycerol (TG) was analyzed. Circulating growth/differentiation factor 15 (GDF15), tissue Gdf15 mRNA and food intake were investigated after acute oral gavage of MCFAs as C8:0 or C10:0 TG in mice. Effects of acute and subchronic administration of MCFAs as C8:0 TG on food intake and body weight were determined in mice lacking either the receptor for GDF15, GDNF Family Receptor Alpha Like (GFRAL), or GDF15. RESULTS Hepatic and small intestinal expression of Gdf15 and circulating GDF15 increased after MCFAs ingestion, while intake of typical dietary long-chain fatty acids (LCFAs) had no effect. Plasma GDF15 levels also increased in the portal vein with MCFA intake, indicating that in addition to the liver, the small intestine contributes to the rise in circulating GDF15. Acute oral provision of MCFAs decreased food intake over 24 hours compared with a LCFA-containing bolus, and this anorectic effect required the GDF15 receptor, GFRAL. Moreover, subchronic oral administration of MCFAs reduced body weight over 7 days, an effect that was blunted in mice lacking either GDF15 or GFRAL. CONCLUSIONS We have identified ingestion of MCFAs as a novel nutritional approach that increases circulating GDF15 in mice and have revealed that the GDF15-GFRAL axis is required for the full anorectic effect of MCFAs.
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Affiliation(s)
- Josephine M Kanta
- The August Krogh Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Luisa Deisen
- Muscle Physiology and Metabolism Group, German Institute of Human Nutrition (DIfE), Potsdam-Rehbruecke, Nuthetal, Germany
| | - Kornelia Johann
- Muscle Physiology and Metabolism Group, German Institute of Human Nutrition (DIfE), Potsdam-Rehbruecke, Nuthetal, Germany; German Center for Diabetes Research (DZD), 85764 Munich, Germany
| | - Stephanie Holm
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Annemarie Lundsgaard
- The August Krogh Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Jens Lund
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Markus Jähnert
- German Center for Diabetes Research (DZD), 85764 Munich, Germany; Department of Experimental Diabetology, German Institute of Human Nutrition (DIfE), 14558 Potsdam, Germany
| | - Annette Schürmann
- German Center for Diabetes Research (DZD), 85764 Munich, Germany; Department of Experimental Diabetology, German Institute of Human Nutrition (DIfE), 14558 Potsdam, Germany; Institute of Nutrition Science, University of Potsdam, Nuthetal, Germany; Faculty of Health Sciences, Joint Faculty of the Brandenburg University of Technology Cottbus-Senftenberg, The Brandenburg Medical School Theodor Fontane and The University of Potsdam, 14469 Potsdam, Germany
| | - Christoffer Clemmensen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Bente Kiens
- The August Krogh Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Andreas M Fritzen
- The August Krogh Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Maximilian Kleinert
- The August Krogh Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark; Muscle Physiology and Metabolism Group, German Institute of Human Nutrition (DIfE), Potsdam-Rehbruecke, Nuthetal, Germany; German Center for Diabetes Research (DZD), 85764 Munich, Germany.
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13
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Li L, Qin Y, Xin X, Wang S, Liu Z, Feng X. The great potential of flavonoids as candidate drugs for NAFLD. Biomed Pharmacother 2023; 164:114991. [PMID: 37302319 DOI: 10.1016/j.biopha.2023.114991] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/13/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) has a global prevalence of approximately 25 % and is associated with high morbidity and high mortality. NAFLD is a leading cause of cirrhosis and hepatocellular carcinoma. Its pathophysiology is complex and still poorly understood, and there are no drugs used in the clinic to specifically treat NAFLD. Its pathogenesis involves the accumulation of excess lipids in the liver, leading to lipid metabolism disorders and inflammation. Phytochemicals with the potential to prevent or treat excess lipid accumulation have recently received increasing attention, as they are potentially more suitable for long-term use than are traditional therapeutic compounds. In this review, we summarize the classification, biochemical properties, and biological functions of flavonoids and how they are used in the treatment of NAFLD. Highlighting the roles and pharmacological uses of these compounds will be of importance for enhancing the prevention and treatment of NAFLD.
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Affiliation(s)
- Liangge Li
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China; School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China
| | - Yiming Qin
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China; School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China
| | - Xijian Xin
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China; School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China
| | - Shendong Wang
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China; School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China
| | - Zhaojun Liu
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China; School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China
| | - Xiujing Feng
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China; School of Clinical and Basic Medical Sciences, Shandong First Medical University& Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China.
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14
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Li Y, Ouyang Q, Li X, Alolgal RN, Fan Y, Sun Y, Gong H, Xiao P, Ma G. The Role of Gynostemma pentaphyllum in Regulating Hyperlipidemia. Am J Chin Med 2023:1-26. [PMID: 37129524 DOI: 10.1142/s0192415x23500441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Developing effective and safe lipid-lowering drugs is highly urgent. This study aims to investigate the effectiveness and underlying mechanisms of Gynostemma pentaphyllum (GP) in the treatment of hyperlipidemia. First, a meta-analysis was performed to determine the lipid-lowering effects of GP. Thereafter, hyperlipidemia was induced in mice using a high-fat diet (HFD) and was subsequently treated with Gynostemma pentaphyllum extract (GPE) by daily gavage for 12 weeks. The body weight, tissue weight, blood lipid level, and liver lipid level were determined. Additionally, mouse serum samples were subjected to metabolomic profiling and feces were collected at different time points for metagenomic analysis via 16S rDNA sequencing. A total of 15 out of 1520 studies were retrieved from six databases. The pooled results of the meta-analysis showed that GP effectively reduced triglyceride levels and increased high-density lipoprotein cholesterol (both [Formula: see text]). Animal experiments revealed that GPE administration significantly reduced body weight, ameliorated high blood lipid levels, limited lipid deposition, and improved insulin resistance. Furthermore, GPE treatment markedly changed the intestinal microbiota structure and constitution of tryptophan metabolites. In conclusion, our results confirm the lipid-lowering effect of GP, which may be partly attributable to regulation of the intestinal microbiota and tryptophan metabolism.
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Affiliation(s)
- Ying Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Qiong Ouyang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Xu Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Raphael N Alolgal
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Yuanming Fan
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Yangyang Sun
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Hang Gong
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
| | - Pingxi Xiao
- Department of Cardiology, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, P. R. China
| | - Gaoxiang Ma
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P. R. China
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Chen R, Liao K, Liao H, Zhang L, Zhao H, Sun J. Screening and functional validation of lipid metabolism-related lncRNA-46546 based on the transcriptome analysis of early embryonic muscle tissue in chicken. Anim Biosci 2023; 36:175-190. [PMID: 35073667 PMCID: PMC9834732 DOI: 10.5713/ab.21.0440] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 01/07/2022] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The study was conducted to screen differentially expressed long noncoding RNA (lncRNA) in chickens by high-throughput sequencing and explore its mechanism of action on intramuscular fat deposition. METHODS Herein, Rose crown and Cbb broiler chicken embryo breast and leg muscle lncRNA and mRNA expression profiles were constructed by RNA sequencing. A total of 96 and 42 differentially expressed lncRNAs were obtained in Rose crown vs Cobb broiler chicken breast and leg muscle, respectively. lncRNA-ENSGALT00000046546, with high interspecific variability and a potential regulatory role in lipid metabolism, and its predicted downstream target gene 1-acylglycerol-3-phosphate-O-acyltransferase 2 (AGPAT2), were selected for further study on the preadipocytes. RESULTS lncRNA-46546 overexpression in chicken preadipocyte 2 cells significantly increased (p<0.01) the expression levels of AGPAT2 and its downstream genes diacylglycerol acyltransferase 1 and diacylglycerol acyltransferase 2 and those of the fat metabolism-related genes peroxisome proliferator-activated receptor γ, CCAAT/enhancer binding protein α, fatty acid synthase, sterol regulatory element-binding transcription factor 1, and fatty acid binding protein 4. The lipid droplet concentration was higher in the overexpression group than in the control cells, and the triglyceride content in cells and medium was also significantly increased (p<0.01). CONCLUSION This study preliminarily concludes that lncRNA-46546 may promote intramuscular fat deposition in chickens, laying a foundation for the study of lncRNAs in chicken early embryonic development and fat deposition.
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Affiliation(s)
- Ruonan Chen
- College of Animal Science and Technology, Shihezi University, Shihezi, 832000,
China
| | - Kai Liao
- College of Pharmacy, Shihezi University, Shihezi, 832000,
China
| | - Herong Liao
- College of Animal Science and Technology, Shihezi University, Shihezi, 832000,
China
| | - Li Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi, 832000,
China
| | - Haixuan Zhao
- College of Medical, Shihezi University, Shihezi, 832000,
China
| | - Jie Sun
- College of Animal Science and Technology, Shihezi University, Shihezi, 832000,
China,Corresponding Author: Jie Sun, Tel: +86-135-7974-2370, E-mail:
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16
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Ramos GP, Bamidele AO, Klatt EE, Sagstetter MR, Kurdi AT, Hamdan FH, Kosinsky RL, Gaballa JM, Nair A, Sun Z, Dasari S, Lanza IR, Rozeveld CN, Schott MB, Urrutia G, Westphal MS, Clarkson BD, Howe CL, Marietta EV, Luckey DH, Murray JA, Gonzalez M, Braga Neto MB, Gibbons HR, Smyrk TC, Johnsen S, Lomberk G, Faubion WA. G9a Modulates Lipid Metabolism in CD4 T Cells to Regulate Intestinal Inflammation. Gastroenterology 2023; 164:256-271.e10. [PMID: 36272457 PMCID: PMC9892272 DOI: 10.1053/j.gastro.2022.10.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 09/27/2022] [Accepted: 10/06/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND & AIMS Although T-cell intrinsic expression of G9a has been associated with murine intestinal inflammation, mechanistic insight into the role of this methyltransferase in human T-cell differentiation is ill defined, and manipulation of G9a function for therapeutic use against inflammatory disorders is unexplored. METHODS Human naive T cells were isolated from peripheral blood and differentiated in vitro in the presence of a G9a inhibitor (UNC0642) before being characterized via the transcriptome (RNA sequencing), chromatin accessibility (assay for transposase-accessible chromatin by sequencing), protein expression (cytometry by time of flight, flow cytometry), metabolism (mitochondrial stress test, ultrahigh performance liquid chromatography-tandem mas spectroscopy) and function (T-cell suppression assay). The in vivo role of G9a was assessed using 3 murine models. RESULTS We discovered that pharmacologic inhibition of G9a enzymatic function in human CD4 T cells led to spontaneous generation of FOXP3+ T cells (G9a-inibitors-T regulatory cells [Tregs]) in vitro that faithfully reproduce human Tregs, functionally and phenotypically. Mechanistically, G9a inhibition altered the transcriptional regulation of genes involved in lipid biosynthesis in T cells, resulting in increased intracellular cholesterol. Metabolomic profiling of G9a-inibitors-Tregs confirmed elevated lipid pathways that support Treg development through oxidative phosphorylation and enhanced lipid membrane composition. Pharmacologic G9a inhibition promoted Treg expansion in vivo upon antigen (gliadin) stimulation and ameliorated acute trinitrobenzene sulfonic acid-induced colitis secondary to tissue-specific Treg development. Finally, Tregs lacking G9a expression (G9a-knockout Tregs) remain functional chronically and can rescue T-cell transfer-induced colitis. CONCLUSION G9a inhibition promotes cholesterol metabolism in T cells, favoring a metabolic profile that facilitates Treg development in vitro and in vivo. Our data support the potential use of G9a inhibitors in the treatment of immune-mediated conditions including inflammatory bowel disease.
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Affiliation(s)
- Guilherme Piovezani Ramos
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Adebowale O Bamidele
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Emily E Klatt
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota; Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | - Mary R Sagstetter
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Ahmed T Kurdi
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Feda H Hamdan
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Robyn Laura Kosinsky
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Joseph M Gaballa
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Asha Nair
- Division of Computational Biology, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota
| | - Zhifu Sun
- Division of Computational Biology, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota
| | | | - Ian R Lanza
- Metabolomics Core, Mayo Clinic, Rochester, Minnesota
| | - Cody N Rozeveld
- Department of Biology, Northwestern College, Orange City, Iowa
| | - Micah B Schott
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Guillermo Urrutia
- Genomic Sciences and Precision Medicine Center, Milwaukee, Wisconsin; Division of Research Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Maria S Westphal
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | | | - Charles L Howe
- Department of Immunology, Mayo Clinic, Rochester, Minnesota; Department of Neurology, Mayo Clinic, Rochester, Minnesota
| | - Eric V Marietta
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota; Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | - David H Luckey
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | - Joseph A Murray
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Michelle Gonzalez
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Manuel B Braga Neto
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Hunter R Gibbons
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Thomas C Smyrk
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Steven Johnsen
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany
| | - Gwen Lomberk
- Genomic Sciences and Precision Medicine Center, Milwaukee, Wisconsin; Division of Research Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - William A Faubion
- Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota; Department of Immunology, Mayo Clinic, Rochester, Minnesota.
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17
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Huang CJ, Zhang CY, Zhao YK, Wang D, Zhuang L, Qian L, Xie L, Zhu Y, Meng ZQ. Bufalin Inhibits Tumorigenesis and SREBP-1-Mediated Lipogenesis in Hepatocellular Carcinoma via Modulating the ATP1A1/CA2 Axis. Am J Chin Med 2023; 51:461-485. [PMID: 36655687 DOI: 10.1142/s0192415x23500246] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Altered lipid metabolism is a hallmark of hepatocellular carcinoma (HCC), a common malignancy with a dismal prognosis against which there is a lack of effective therapeutic strategies. Bufalin, a classical Na[Formula: see text]-K[Formula: see text]-ATPase (NKA) inhibitor, shows a potent antitumor effect against HCC. However, the role of bufalin in regulating lipid metabolism-related pathways of HCC remains unclear. In this study, we examined the interaction between bufalin and its target molecule, ATP1A1/CA2, in vitro and in vivo and explored the intersected downstream pathways in silico. A multi-omics analysis of transcriptomics and metabolomics was employed to screen for potential action targets. The results were verified and correlated with the downstream lipid de novo synthesis pathway and the bufalin/ATP1A1/CA2 axis. We found that bufalin suppressed the ATP1A1/CA2 ratio in the treated HCC cells and showed a negative correlation with bufalin drug sensitivity. Functionally, ATP1A1 overexpression and CA2 down-regulation inhibited the bufalin-suppressed HCC proliferation and metastasis. Furthermore, down-regulation of CA2 induced epithelial-mesenchymal transition and bufalin resistance in HCC cells by up-regulating ATP1A1. Mechanistically, lipid metabolism-related signaling pathways were enriched in low ATP1A1 and high CA2 expression subgroups in GSEA. The multi-omics analysis also showed that bufalin was closely related to lipid metabolism. We demonstrated that bufalin inhibits lipogenesis and tumorigenesis by down-regulating SREBP-1/FASN/ACLY via modulating the ATP1A1/CA2 axis in HCC.
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Affiliation(s)
- Chang-Jing Huang
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P. R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Chen-Yue Zhang
- Department of Integrated Therapy, Fudan University Shanghai Cancer Center, Shanghai 200032, P. R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Ying-Ke Zhao
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P. R. China.,Cancer Institute, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, P. R. China
| | - Dan Wang
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P. R. China.,Cancer Institute, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, P. R. China
| | - Liping Zhuang
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P. R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Ling Qian
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P. R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Lin Xie
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P. R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Ying Zhu
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P. R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Zhi-Qiang Meng
- Department of Integrative Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P. R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
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18
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Atay MS, Sari S, Bodur E. Molecular and Computational Analysis Identify Statins as Selective Inhibitors of Human Butyrylcholinesterase. Protein J 2023. [PMID: 36648628 DOI: 10.1007/s10930-023-10090-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/07/2023] [Indexed: 01/18/2023]
Abstract
Cholinesterase enzyme family consists of acetylcholinesterase (AChE, 3.1.1.7), the major enzyme responsible for hydrolysis of acetylcholine at cholinergic synapses, and butyrylcholinesterase (BChE, 3.1.1.8) a detoxification enzyme of plasma. Statins are cholesterol-lowering medications utilized as protective medicaments in stroke and Alzheimer's disease, which cholinesterases are associated with. Thus, in this study, we characterized the inhibitory effects and mechanisms of common statins, rosuvastatin, atorvastatin, simvastatin and lovastatin, on human erythrocyte AChE and purified serum BChE using in vitro and in silico methods. Kinetic assays identified statins as selective non-competitive inhibitors of human serum BChE. The IC50 and Km values were found as 194.7 ± 55.2 µM and 1.03 ± 0.2 µM for rosuvastatin, 492.5 ± 55.1 µM and 7.2 ± 0.3 µM for atorvastatin, 14.2 ± 0.3 µM and 202.7 ± 23.2 µM for lovastatin, and 17.6 ± 0.1 µM and 207.2 ± 13.2 µM for simvastatin, respectively. The compounds did not display considerable inhibition against AChE. Molecular docking predicted good affinity and strong interactions with the BChE active site for atorvastatin and rosuvastatin. Current study identifies rosuvastatin as the most specific and selective inhibitor of human BChE among the tested statins. As selective inhibitors of BChE statins have the potential to be re-evaluated as medicaments due to their pleiotropic effects.
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19
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Luo L, Liu Y, Nizigiyimana P, Ye M, Xiao Y, Guo Q, Su T, Luo X, Huang Y, Zhou H. DNA 6mA Demethylase ALKBH1 Orchestrates Fatty Acid Metabolism and Suppresses Diet-Induced Hepatic Steatosis. Cell Mol Gastroenterol Hepatol 2022; 14:1213-1233. [PMID: 36058506 PMCID: PMC9579408 DOI: 10.1016/j.jcmgh.2022.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND & AIMS Nonalcoholic fatty liver disease (NAFLD) is a major cause of liver-related morbidity and mortality whereas the pathogenic mechanism remains largely elusive. DNA N6-methyladenosine (6mA) modification is a recently identified epigenetic mark indicative of transcription in eukaryotic genomes. Here, we aimed to investigate the role and mechanism of DNA 6mA modification in NAFLD progression. METHODS Dot blot and immunohistochemistry were used to detect DNA 6mA levels. Liver-specific AlkB homolog 1 (ALKBH1)-knockout mice and mice with ALKBH1 overexpression in liver were subjected to a high-fat diet or methionine choline-deficient diet to evaluate the critical role of ALKBH1-demethylated DNA 6mA modification in the pathogenesis of hepatic steatosis during NAFLD. RNA sequencing and chromatin immunoprecipitation sequencing were performed to investigate molecular mechanisms underlying this process. RESULTS The DNA 6mA level was increased significantly with hepatic steatosis, while ALKBH1 expression was down-regulated markedly in both mouse and human fatty liver. Deletion of ALKBH1 in hepatocytes increased genomic 6mA levels and accelerated diet-induced hepatic steatosis and metabolic dysfunction. Comprehensive analyses of transcriptome and chromatin immunoprecipitation sequencing data indicated that ALKBH1 directly bound to and exclusively demethylated 6mA levels of genes involved in fatty acid uptake and lipogenesis, leading to reduced hepatic lipid accumulation. Importantly, ALKBH1 overexpression was sufficient to suppress lipid uptake and synthesis, and alleviated diet-induced hepatic steatosis and insulin resistance. CONCLUSIONS Our findings show an indispensable role of ALKBH1 as an epigenetic suppressor of DNA 6mA in hepatic fatty acid metabolism and offer a potential therapeutic target for NAFLD treatment.
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Affiliation(s)
- Liping Luo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ya Liu
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Paul Nizigiyimana
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mingsheng Ye
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ye Xiao
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qi Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Tian Su
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xianghang Luo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Yan Huang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Haiyan Zhou
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China,Correspondence Address correspondence to: Haiyan Zhou, PhD, Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital, Central South University, No 87, Xiangya Road, Changsha, Hunan Province 410008, China.
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20
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Zhou C, Yin X. Wogonin Ameliorated Obesity-Induced Lipid Metabolism Disorders and Cardiac Injury via Suppressing Pyroptosis and Deactivating IL-17 Signaling Pathway. Am J Chin Med 2022; 50:1553-1564. [PMID: 35770725 DOI: 10.1142/s0192415x22500653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Obesity leads to structural and functional changes in the heart and has become a global burden of disease. Wogonin is a natural flavonoid which possesses cardioprotective, neuroprotective, and anti-cancer properties. However, the effects of wogonin on obesity-induced cardiac injury remain unclear. In this study, the high-fat diet (HFD)-induced obese mice model was successfully established. Moreover, HFD induced a fat mass and cardiac injury in mice. More importantly, wogonin treatment reduced fat mass and improved cardiac function of HFD mice. Consistently, wogonin ameliorated myocardial lipid metabolism in HFD-induced obese mice by reducing triglyceride (TC), total cholesterol (TG), and non-esterified fatty acid (NEFA) levels in serum, as well as the TG and free fatty acids (FFA) levels in heart tissues. Interestingly, wogonin treatment alleviated myocardial pyroptosis in HFD-induced obese mice. Through bioinformatic analysis, the IL-17 signaling pathway was predicted to be modulated by wogonin. Results showed that wogonin deactivated the IL-17 signaling pathway in HFD mice. These findings suggested that wogonin ameliorated obesity-induced disorders of lipid metabolism and cardiac injury via suppressing pyroptosis and deactivating the IL-17 signaling pathway, which provided a novel therapeutic strategy for HFD-induced cardiac injury.
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Affiliation(s)
- Cheng Zhou
- Department of Paediatrics, Changzhou Second People's Hospital Affiliated to Nanjing Medical University, Changzhou, Jiangsu 213164, P. R. China
| | - Xiaoling Yin
- Department of Paediatrics, Changzhou Second People's Hospital Affiliated to Nanjing Medical University, Changzhou, Jiangsu 213164, P. R. China
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21
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Kong L, Xu M, Yang L, Liu S, Zheng G. Smilax china Polyphenols Stimulate Browning via [Formula: see text]3-Adrenergic Receptor/AMP-Activated Protein Kinase [Formula: see text] Signaling Pathway in 3T3-L1 Adipocytes. Am J Chin Med 2022; 50:1315-1329. [PMID: 35642460 DOI: 10.1142/s0192415x22500550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The aim of this study is to investigate the molecular mechanism of Smilax china L. polyphenols (SCLPs) in enhancing lipid metabolism and stimulating browning to reduce lipid accumulation in 3T3-L1 adipocytes. SCLP treatment obviously decreased lipid content in a dose-dependent manner (10-40 μg/mL) in adipocytes. SCLP treatment cooperated with noradrenalin to increase lipolysis. SCLPs reduced the gene expressions of C/EBP[Formula: see text] and Ap2 and enhanced the expressions of ACO, CPT, pHSL/HSL, ATGL, and PKA in adipocytes. Furthermore, SCLPs increased mRNA and protein expressions of brown adipocyte-specific factors (UCP-1, PRDM16, PGC-1α, and PPARγ) and mRNA expressions of beige adipocyte-specific markers (CD137, Tbx1, and Tmem26) in 3T3-L1 adipocytes, as well as mitochondrial biogenesis genes (Nrf1 and Tfam). In addition, according to the immunofluorescence staining, the mitochondria number was increased by SCLP. Moreover, β3-AR or AMPK agonist synergistic SCLPs enhanced the expressions of UCP-1, PRDM16, and PGC-1α. While β3-AR or AMPK antagonist significantly decreased the expressions of these brown adipocyte-specific factors, SCLP treatment inhibited the effect of antagonist to improve the expression of UCP-1, PRDM16, and PGC-1α. These results indicated that SCLPs may regulate lipid metabolism and stimulate browning via the β3-AR/AMPKα signaling pathway. Thus, SCLPs likely have potential therapeutic effects on obesity.
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Affiliation(s)
- Li Kong
- Jiangxi Key Laboratory of Natural Products and Functional Food, School of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Meng Xu
- Jiangxi Key Laboratory of Natural Products and Functional Food, School of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Licong Yang
- School of Biological Science and Engineering, Fuzhou University, 2 North Wulongjiang Avenue, Fuzhou, Fujian 350108, P. R. China
| | - Shanshan Liu
- Jiangxi Key Laboratory of Natural Products and Functional Food, School of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Guodong Zheng
- Jiangxi Key Laboratory of Natural Products and Functional Food, School of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, P. R. China
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22
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Duan X, Yang L, Wang L, Liu Q, Zhang K, Liu S, Liu C, Gao Q, Li L, Qin G, Zhang Y. m6A demethylase FTO promotes tumor progression via regulation of lipid metabolism in esophageal cancer. Cell Biosci 2022; 12:60. [PMID: 35568876 PMCID: PMC9107638 DOI: 10.1186/s13578-022-00798-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 04/23/2022] [Indexed: 02/08/2023] Open
Abstract
Background Epitranscriptomics studies have contributed greatly to the development of research on human cancers. In recent years, N6-methyladenosine (m6A), an RNA modification on the N-6 position of adenosine, has been found to play a potential role in epigenetic regulation. Therefore, we aimed to evaluate the regulation of cancer progression properties by m6A. Results We found that m6A demethylase fat mass and obesity-associated protein (FTO) was highly expressed in esophageal cancer (EC) stem-like cells, and that its level was also substantially increased in EC tissues, which was closely correlated with a poor prognosis in EC patients. FTO knockdown significantly inhibited the proliferation, invasion, stemness, and tumorigenicity of EC cells, whereas FTO overexpression promoted these characteristics. Furthermore, integrated transcriptome and meRIP-seq analyses revealed that HSD17B11 may be a target gene regulated by FTO. Moreover, FTO promoted the formation of lipid droplets in EC cells by enhancing HSD17B11 expression. Furthermore, depleting YTHDF1 increased the protein level of HSD17B11. Conclusions These data indicate that FTO may rely on the reading protein YTHDF1 to affect the translation pathway of the HSD17B11 gene to regulate the formation of lipid droplets in EC cells, thereby promoting the development of EC. The understanding of the role of epitranscriptomics in the development of EC will lay a theoretical foundation for seeking new anticancer therapies. Supplementary Information The online version contains supplementary material available at 10.1186/s13578-022-00798-3.
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Affiliation(s)
- Xiaoran Duan
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China.,Internet Medical and System Applications of National Engineering Laboratory, Zhengzhou, 450052, Henan, P.R. China
| | - Li Yang
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China.,State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou, 450052, Henan, P.R. China.,Henan Key Laboratory for Tumor Immunology and Biotherapy, Zhengzhou, 450052, Henan, P.R. China
| | - Liuya Wang
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China
| | - Qinghua Liu
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China
| | - Kai Zhang
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China
| | - Shasha Liu
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China
| | - Chaojun Liu
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China
| | - Qun Gao
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China
| | - Lifeng Li
- Internet Medical and System Applications of National Engineering Laboratory, Zhengzhou, 450052, Henan, P.R. China
| | - Guohui Qin
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China
| | - Yi Zhang
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, P.R. China. .,State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou, 450052, Henan, P.R. China. .,Henan Key Laboratory for Tumor Immunology and Biotherapy, Zhengzhou, 450052, Henan, P.R. China.
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23
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Lickwar CR, Davison JM, Kelly C, Mercado GP, Wen J, Davis BR, Tillman MC, Semova I, Andres SF, Vale G, McDonald JG, Rawls JF. Transcriptional Integration of Distinct Microbial and Nutritional Signals by the Small Intestinal Epithelium. Cell Mol Gastroenterol Hepatol 2022; 14:465-93. [PMID: 35533983 DOI: 10.1016/j.jcmgh.2022.04.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 04/29/2022] [Accepted: 04/29/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS The intestine constantly interprets and adapts to complex combinations of dietary and microbial stimuli. However, the transcriptional strategies by which the intestinal epithelium integrates these coincident sources of information remain unresolved. We recently found that microbiota colonization suppresses epithelial activity of hepatocyte nuclear factor 4 nuclear receptor transcription factors, but their integrative regulation was unknown. METHODS We compared adult mice reared germ-free or conventionalized with a microbiota either fed normally or after a single high-fat meal. Preparations of unsorted jejunal intestinal epithelial cells were queried using lipidomics and genome-wide assays for RNA sequencing and ChIP sequencing for the activating histone mark H3K27ac and hepatocyte nuclear factor 4 alpha. RESULTS Analysis of lipid classes, genes, and regulatory regions identified distinct nutritional and microbial responses but also simultaneous influence of both stimuli. H3K27ac sites preferentially increased by high-fat meal in the presence of microbes neighbor lipid anabolism and proliferation genes, were previously identified intestinal stem cell regulatory regions, and were not hepatocyte nuclear factor 4 alpha targets. In contrast, H3K27ac sites preferentially increased by high-fat meal in the absence of microbes neighbor targets of the energy homeostasis regulator peroxisome proliferator activated receptor alpha, neighbored fatty acid oxidation genes, were previously identified enterocyte regulatory regions, and were hepatocyte factor 4 alpha bound. CONCLUSIONS Hepatocyte factor 4 alpha supports a differentiated enterocyte and fatty acid oxidation program in germ-free mice, and that suppression of hepatocyte factor 4 alpha by the combination of microbes and high-fat meal may result in preferential activation of intestinal epithelial cell proliferation programs. This identifies potential transcriptional mechanisms for intestinal adaptation to multiple signals and how microbiota may modulate intestinal lipid absorption, epithelial cell renewal, and systemic energy balance.
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24
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Klaebel JH, Lykkesfeldt J, Tveden-Nyborg P. Efficacy of Fibroblast Growth Factor 21 in non-alcoholic fatty liver disease in guinea pigs. Basic Clin Pharmacol Toxicol 2022; 130:385-393. [PMID: 35014168 DOI: 10.1111/bcpt.13705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 11/28/2022]
Abstract
Fibroblast Growth Factor 21 (FGF21) agonists have shown promising effects in preclinical models of non-alcoholic fatty liver disease (NAFLD) as well as in short-term clinical trials in patients with non-alcoholic steatohepatitis (NASH). Comparing drug formulation, dose, administration route and age, this exploratory study investigated effects of FGF21 on NAFLD-associated measures in a validated guinea pig model. In three separate studies, female guinea pigs received a high-fat diet prior to intervention with escalating doses of either recombinant native human FGF21 or a human FGF21 human recombinant analogue (FGF21/19 chimer) with an extended half-life. While no significant effects of native FGF21 on the investigated endpoints were observed, the long-acting FGF21/19 chimer significantly altered the levels of circulating lipids, increasing plasma concentrations of cholesterol (TC, LDLc and HDLc) in young guinea pigs (p<0.01 for all three parameters). Relative liver weights were reduced in FGF21/19-treated young animals (p<0.05) compared to mature animals, whereas FGF21/19 reduced body weights in both age groups (p<0.001). The FGF21/19 chimer effects on dyslipidemia, body and liver weights particularly in young animals, support an age-associated difference in the FGF21 response. The limited effects of the native human FGF21 highlights potential species-associated differences of this compound.
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Affiliation(s)
- Julie Hviid Klaebel
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Jens Lykkesfeldt
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Pernille Tveden-Nyborg
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
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25
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Chen Q, Wu C, Yao Z, Cai L, Ni Y, Mao S. Elevated thyroid hormones caused by high concentrate diets participate in hepatic metabolic disorders in dairy cows. Anim Biosci 2022; 35:1184-1194. [PMID: 34991199 PMCID: PMC9262717 DOI: 10.5713/ab.21.0397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/17/2021] [Indexed: 11/27/2022] Open
Abstract
Objective High concentrate diets are widely used to satisfy high-yielding dairy cows; however, long-term feeding of high concentrate diets can cause subacute ruminal acidosis (SARA). The endocrine disturbance is one of the important reasons for metabolic disorders caused by SARA. However, there is no current report about thyroid hormones involved in liver metabolic disorders induced by a high concentrate diet. Methods In this study, 12 mid-lactating dairy cows were randomly assigned to HC (high concentrate) group (60% concentrate of dry matter, n = 6) and LC (low concentrate) group (40% concentrate of dry matter, n = 6). All cows were slaughtered on the 21st day, and the samples of blood and liver were collected to analyze the blood biochemistry, histological changes, thyroid hormones, and the expression of genes and proteins. Results Compared with LC group, HC group showed decreased serum triglyceride, free fatty acid, total cholesterol, low-density lipoprotein cholesterol, increased hepatic glycogen, and glucose. For glucose metabolism, the gene and protein expression of glucose-6-phosphatase and phosphoenolpyruvate carboxykinase 1 in the liver were significantly up-regulated in HC group. For lipid metabolism, the expression of sterol regulatory element-binding protein 1, long-chain acyl-CoA synthetase 1, and fatty acid synthase in the liver was decreased in HC group, whereas carnitine palmitoyltransferase 1α and peroxisome proliferator activated receptor α were increased. Serum triiodothyronine, thyroxin, free triiodothyronine (FT3), and hepatic FT3 increased in HC group, accompanied by increased expression of thyroid hormone receptor (THR) in the liver. Conclusion Taken together, thyroid hormones may increase hepatic gluconeogenesis, β-oxidation and reduce fatty acid synthesis through the THR pathway to participate in the metabolic disorders caused by a high concentrate diet.
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Affiliation(s)
- Qu Chen
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Chen Wu
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhihao Yao
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Liuping Cai
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Yingdong Ni
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Shengyong Mao
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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Li X, Wang Z, Meng H, Meng F, Yang P. Expression of Membrane Bound O-Acyltransferase Domain Containing 7 after Myocardial Infarction and its Role in Lipid Metabolism in vitro. Int J Med Sci 2022; 19:609-617. [PMID: 35582424 PMCID: PMC9108405 DOI: 10.7150/ijms.70614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/05/2022] [Indexed: 12/05/2022] Open
Abstract
Background: Previous microarray analysis on peripheral blood leukocytes from three patients with acute myocardial infarction (AMI) showed that elevated expression of membrane bound o-acyltransferase domain containing 7(MBOAT7) relative to control. To further verify these findings, we investigated more patients and explored the possible mechanisms in vitro. Objective: To study alterations in MBOAT7 expression in leukocytes after AMI, and to explore the relationship between MBOAT7 and lipid metabolism pathways in hepatocytes in vitro. Methods: Ninety patients with AMI and 90 controls were recruited from the Han population in Northeast China. RT-fluorescent PCR was used to measure MBOAT7 mRNA levels. MBOAT7 interference and overexpression vectors were constructed and transfected into L-02 hepatocytes and expression was examined by RT-qPCR and western blotting. The expression of SCAP, LDLR, HMGCR, ACAT1, ABCA1, SREBP1, ACC, FAS, SCD, and PPARγ in the lipid metabolism pathway were investigated by RT-qPCR. Triglyceride and cholesterol levels were measured by ELISA. Results: It was found that MBOAT7 mRNA levels were elevated in the leukocytes of patients with AMI. Hepatocytes were successfully transfected, shown by attenuated MBOAT7 mRNA levels in the silenced group (0.41±0.04 vs 1.01±0.07 for control, P=0.0019 <0.01) and raised levels in the overexpressing cells (23.29±0.39 vs 1.00±0.06 for control, P <0.0001). These results were confirmed by western blotting. Expression of the lipid metabolism-related genes was altered in response to MBOAT7 expression. Triglyceride levels increased after MBOAT7 silencing (118.40 ± 2.26 vs 70.54 ± 0.25 for control, P<0.0001), as did those of cholesterol (628.30 ± 8.89 vs 544.70 ± 11.04, P = 0.0041) but were not altered on MBOAT7 overexpression. Conclusion: MBOAT7 did not affect the metabolism of triglycerides in hepatocytes through fatty acid synthesis and decomposition pathways. The MBOAT7 level in the peripheral blood can be used as a marker for acute myocardial infarction but cannot be used as a single therapeutic target to regulate lipid metabolism.
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Affiliation(s)
- Xiangdong Li
- Cardiovascular Department of China-Japan Union Hospital of Jilin University
| | - Zhiyuan Wang
- Ultrasound Department of China-Japan Union Hospital of Jilin University
| | - Heyu Meng
- Cardiovascular Department of China-Japan Union Hospital of Jilin University
| | - Fanbo Meng
- Cardiovascular Department of China-Japan Union Hospital of Jilin University
| | - Ping Yang
- Cardiovascular Department of China-Japan Union Hospital of Jilin University
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27
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Xin FZ, Zhao ZH, Liu XL, Pan Q, Wang ZX, Zeng L, Zhang QR, Ye L, Wang MY, Zhang RN, Gong ZZ, Huang LJ, Sun C, Shen F, Jiang L, Fan JG. Escherichia fergusonii Promotes Nonobese Nonalcoholic Fatty Liver Disease by Interfering With Host Hepatic Lipid Metabolism Through Its Own msRNA 23487. Cell Mol Gastroenterol Hepatol 2021; 13:827-841. [PMID: 34902629 PMCID: PMC8802849 DOI: 10.1016/j.jcmgh.2021.12.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 12/02/2021] [Accepted: 12/03/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS Gut microbiota and microbial factors regulate the pathogenesis of nonalcoholic fatty liver disease (NAFLD) in patients with obesity and metabolic abnormalities, but little is known about their roles in nonobese NAFLD. Expansion of Escherichia is associated with NAFLD pathogenesis. We aimed to investigate the pathogenic role of Escherichia fergusonii and its products in the development of nonobese NAFLD. METHODS We characterized the intestinal microbiome signature in a cohort of NAFLD patients and healthy controls by 16S ribosomal RNA sequencing. The role of E fergusonii was estimated in rats after 16 weeks of administration, and features of NAFLD were assessed. E fergusonii-derived microRNA-sized, small RNAs (msRNAs) were analyzed by deep sequencing. RESULTS We detected an expansion of Escherichia_Shigella in NAFLD patients compared with healthy controls, and its increase was associated with disease severity independent of obesity. E fergusonii, a member of the genus Escherichia, induced the development of nonobese NAFLD characterized by hepatic steatosis and hepatocyte ballooning in rats without obesity. It disturbed host lipid metabolism by inhibiting hepatic lipid β-oxidation and promoting de novo lipogenesis. We also showed that E fergusonii caused the development of hepatic inflammation and fibrosis in a sizable fraction of animals at an advanced stage of NAFLD. Mechanistically, E fergusonii-derived msRNA 23487 down-regulated host hepatic peroxisome proliferator-activated receptor α expression, which could contribute to lipid accumulation in the liver. CONCLUSIONS These results suggest that E fergusonii promotes the pathogenesis of steatohepatitis and fibrosis in nonobese rats by secreting msRNA 23487, and it might be a potential biomarker for predicting steatohepatitis in nonobese NAFLD.
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Affiliation(s)
- Feng-Zhi Xin
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ze-Hua Zhao
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Lin Liu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Qin Pan
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zi-Xuan Wang
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Zeng
- CloudSeq Biotech, Inc, Shanghai, China
| | - Qian-Ren Zhang
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Ye
- Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Meng-Yu Wang
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rui-Nan Zhang
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zi-Zhen Gong
- Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,Shanghai Key Lab of Pediatric Gastroenterology and Nutrition, Shanghai, China,Department of Pediatric Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lei-Jie Huang
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chao Sun
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Shen
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lu Jiang
- Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,Shanghai Key Lab of Pediatric Gastroenterology and Nutrition, Shanghai, China,Department of Pediatric Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,Lu Jiang, PhD, Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute for Pediatric Research; Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, 1665 Kong Jiang Road, Shanghai, China 200092. fax: (+86)-021-65791316.
| | - Jian-Gao Fan
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,Shanghai Key Lab of Pediatric Gastroenterology and Nutrition, Shanghai, China,Correspondence Address correspondence to: Jian-Gao Fan, MD, PhD, Department of Gastroenterology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Lab of Pediatric Gastroenterology and Nutrition, 1665 Kong Jiang Road, Shanghai, China 200092. fax: (+86)-021-25077345.
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Chen J, Cui H, Liu X, Li J, Zheng J, Li X, Wang L. Effects of dietary n-6:n-3 PUFA ratio on growth performance, blood indexes, tissue fatty acid composition and related gene expression in PPARγ signaling in finishing pigs. Anim Biosci 2021; 35:730-739. [PMID: 34727639 PMCID: PMC9065778 DOI: 10.5713/ab.21.0288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/28/2021] [Indexed: 11/27/2022] Open
Abstract
Objective This study investigated the effects of dietary n-6:n-3 polyunsaturated fatty acid (PUFA) ratio on growth performance, blood indexes, tissue fatty acid composition and the gene expression in finishing pigs. Methods Seventy-two crossbred ([Duroc×Landrace]×Yorkshire) barrows (68.5±1.8 kg) were fed one of four isoenergetic and isonitrogenous diets with n-6:n-3 PUFA ratios of 2:1, 3:1, 5:1, and 8:1. Results Average daily gain, average daily feed intake and gain-to-feed ratio had quadratic responses but the measurements were increased and then decreased (quadratic, p<0.05). The concentrations of serum triglyceride, total cholesterol and interleukin 6 were linearly increased (p<0.05) with increasing of dietary n-6:n-3 PUFA ratio, while that of high-density lipoprotein cholesterol tended to decrease (p = 0.062), and high-density lipoprotein cholesterol:low-density lipoprotein cholesterol ratio and leptin concentration were linearly decreased (p<0.05). The concentration of serum adiponectin had a quadratic response but the measurement was decreased and then increased (quadratic, p<0.05). The proportion of C18:3n-3 was linearly decreased (p<0.05) in the longissimus thoracis (LT) and subcutaneous adipose tissue (SCAT) as dietary n-6:n-3 PUFA ratio increasing, while the proportion of C18:2n-6 and n-6:n-3 PUFA ratio were linearly increased (p<0.05). In addition, the expression levels of peroxisome proliferator-activated receptor gamma (PPARγ) and lipoprotein lipase in the LT and SCAT, and adipocyte fatty acid binding protein and hormone-sensitive lipase (HSL) in the SCAT had quadratic responses but the measurements were increased and then decreased (quadratic, p<0.05). The expression of HSL in the LT was linearly decreased (p<0.05) with increasing of dietary n-6:n-3 PUFA ratio. Conclusion Dietary n-6:n-3 PUFA ratio could regulate lipid and fatty acid metabolism in blood and tissue. Reducing dietary n-6:n-3 PUFA ratio (3:1) could appropriately suppress expression of related genes in PPARγ signaling, and result in improved growth performance and n-3 PUFA deposition in muscle and adipose tissue in finishing pigs.
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Affiliation(s)
- Jing Chen
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China
| | - Hongze Cui
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China
| | - Xianjun Liu
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China
| | - Jiantao Li
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China.,Shenyang Wise Diligence Agriculture-Technology Company Limited, Xinmin, Liaoning, 110300, China
| | - Jiaxing Zheng
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China
| | - Xin Li
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China
| | - Liyan Wang
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China
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Kim MJ, Blanc É, Audouze K. [What do we know about effects of the endocrine disruptors on metabolism and obesity?]. Rev Prat 2021; 71:740-746. [PMID: 34792910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
WHAT DO WE KNOW ABOUT EFFECTS OF THE ENDOCRINE DISRUPTORS ON METABOLISM AND OBESITY? Some endocrine disruptors (EDs) are suspected to be involved in the increase of the prevalence of obesity and metabolic diseases. Data from epidemiological, in vivo, in vitro and in silico studies suggest that EDs may exert their effects on numerous tissues involved in energy metabolism and in the regulation of appetite: adipose tissue, liver, muscle, pancreas, gut and hypothalamus. Their effects are due to: disruptions of the carbohydrate and lipid homeostasis in these organs, via the activation of specific nuclear receptors or transcriptional factors, disturbances in communication between these organs, and epigenetic mechanisms, involved for example in intergenerational effects. The characterization of the effects of EDs on endocrine systems is still under investigations in several European and international projects and initiatives, with the aim to establish new validated regulatory tests for ED identification.
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Affiliation(s)
- Min Ji Kim
- INSERM UMR-S1124, T3S, Toxicologie environnementale, cibles thérapeutiques, signalisation cellulaire et biomarqueurs, Paris, France - Université Sorbonne Paris Nord, Bobigny, France
| | - Étienne Blanc
- INSERM UMR-S1124, T3S, Toxicologie environnementale, cibles thérapeutiques, signalisation cellulaire et biomarqueurs, Paris, France - Université de Paris, Paris, France
| | - Karine Audouze
- INSERM UMR-S1124, T3S, Toxicologie environnementale, cibles thérapeutiques, signalisation cellulaire et biomarqueurs, Paris, France - Université de Paris, Paris, France
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30
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Yang Y, Cheng Z, Zhang W, Hei W, Lu C, Cai C, Zhao Y, Gao P, Guo X, Cao G, Li B. GOT1 regulates adipocyte differentiation by altering NADPH content. Anim Biosci 2021; 35:155-165. [PMID: 34474530 PMCID: PMC8738948 DOI: 10.5713/ab.21.0174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/27/2021] [Indexed: 12/02/2022] Open
Abstract
Objective This study was performed to examine whether the porcine glutamic-oxaloacetic transaminase 1 (GOT1) gene has important functions in regulating adipocyte differentiation. Methods Porcine GOT1 knockout and overexpression vectors were constructed and transfected into the mouse adipogenic 3T3-L1 cells. Lipid droplets levels were measured after 8 days of differentiation. The mechanisms through which GOT1 participated in lipid deposition were examined by measuring the expression of malate dehydrogenase 1 (MDH1) and malic enzyme (ME1) and the cellular nicotinamide adenine dinucleotide phosphate (NADPH) content. Results GOT1 knockout significantly decreased lipid deposition in the 3T3-L1 cells (p< 0.01), whereas GOT1 overexpression significantly increased lipid accumulation (p<0.01). At the same time, GOT1 knockout significantly decreased the NADPH content and the expression of MDH1 and ME1 in the 3T3-L1 cells. Overexpression of GOT1 significantly increased the NADPH content and the expression of MDH1 and ME1, suggesting that GOT1 regulated adipocyte differentiation by altering the NADPH content. Conclusion The results preliminarily revealed the effector mechanisms of GOT1 in regulating adipose differentiation. Thus, a theoretical basis is provided for improving the quality of pork and studies on diseases associated with lipid metabolism.
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Affiliation(s)
- Yang Yang
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Zhimin Cheng
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China.,Shanxi Academy of Advanced Research and Innovation, Taiyuan 030032, China
| | - Wanfeng Zhang
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Wei Hei
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Chang Lu
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Chunbo Cai
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Yan Zhao
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Pengfei Gao
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Xiaohong Guo
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Guoqing Cao
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Bugao Li
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
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31
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Wright DN, Katundu KGH, Viscarra JA, Crocker DE, Newman JW, La Frano MR, Ortiz RM. Oxylipin Responses to Fasting and Insulin Infusion in a Large Mammalian Model of Fasting-Induced Insulin Resistance, the Northern Elephant Seal. Am J Physiol Regul Integr Comp Physiol 2021; 321:R537-R546. [PMID: 34346724 DOI: 10.1152/ajpregu.00016.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The prolonged, post-weaning fast of northern elephant seal (Mirounga angustirostris) pups is characterized by a reliance on lipid metabolism and reversible, fasting-induced insulin resistance providing a unique model to examine the effects of insulin on lipid metabolism. We have previously shown that acute insulin infusion induced a shift in fatty acid metabolism dependent on fasting duration. This study complements the previous study by examining the effects of fasting duration and insulin infusion on circulating levels of oxylipins, bioactive metabolites derived from the oxygenation of polyunsaturated fatty acids. Northern elephant seal pups were studied at two post-weaning periods (n = 5/period): early fasting (1-2 weeks post-weaning; 127 ± 1 kg) and late fasting (6-7 weeks post-weaning; 93 ± 4 kg). Different cohorts of pups were weighed, sedated, and infused with 65 mU/kg of insulin. Plasma was collected prior to infusion (T0), and at 10, 30, 60, and 120 min post-infusion. A profile of ~80 oxylipins were analyzed by UPLC-ESI-MS/MS. Nine oxylipins changed between early and late fasting and eight were altered in response to insulin infusion. Fasting decreased PGF2a and increased 14,15-DiHETrE, 20-HETE, and 4-HDoHE (p<0.03) in T0 samples, while insulin infusion resulted in an inverse change in area under the curve (AUC) levels in these same metabolites (p<0.05). In addition, 12-HpETE and 12-HETE decreased with fasting and insulin infusion, respectively (p<0.04). The oxylipins altered during fasting and in response to insulin infusion may contribute to the manifestation of insulin resistance and participate in the metabolic regulation of associated cellular processes.
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Affiliation(s)
- Dana N Wright
- Department of Food Science and Nutrition, California Polytechnic State University, San Luis Obispo, CA, United States
| | - Kondwani G H Katundu
- Division of Physiology, Biomedical Sciences Department, College of Medicine, University of Malawi, Blantyre, Southern Region, Malawi
| | - Jose A Viscarra
- Department of Molecular and Cell Biology, School of Natural Sciences, University of California, Merced, United States
| | - Daniel E Crocker
- Department of Biology, Sonoma State University, Rohnert Park, CA, United States
| | - John W Newman
- Obesity and Metabolism Research Unit, USDA-Agricultural Research Service Western Human Nutrition Research Center, University of California, Davis, Davis, CA, United States.,NIH West Coast Metabolomics Center, University of California, Davis, Davis, CA, United States.,Department of Nutrition, University of California, Davis, CA, United States
| | - Michael R La Frano
- Department of Food Science and Nutrition, California Polytechnic State University, San Luis Obispo, CA, United States.,Center for Health Research, California Polytechnic State University, San Luis Obispo, CA, United States.,Cal Poly Metabolomics Service Center, California Polytechnic State University, San Luis Obispo, CA, United States
| | - Rudy M Ortiz
- Department of Molecular and Cell Biology, School of Natural Sciences, University of California, Merced, United States
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Guarneiri LL, Spaulding MO, Marquardt AR, Cooper JA, Paton CM. Acute consumption of pecans decreases angiopoietin-like protein-3 in healthy males: a secondary analysis of randomized controlled trials. Nutr Res 2021; 92:62-71. [PMID: 34274555 DOI: 10.1016/j.nutres.2021.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/28/2021] [Accepted: 06/03/2021] [Indexed: 01/09/2023]
Abstract
Angiopoietin-like proteins (ANGPTL)-3 and -4 regulate lipid metabolism, but the effect of tree nuts of varying fatty acid composition on post-meal responses is unknown. The purpose of the study was to conduct a secondary analysis of two studies on ANGPTL3 and -4 responses to meals containing different tree nuts. We hypothesized that the pecan-containing meal would mitigate postprandial rises in ANGPTL3 compared to the traditional meal without nuts in males, but not females. In addition, we hypothesized that there would be no other differences between any other treatments in ANGPTL3 or -4 responses. The two studies were double-blind, randomized crossover trials. Twenty-two adults (10=male, 12=female) completed study 1, which compared meals containing pecans vs. no nuts (control), and thirty adults (14=male, 16=female) completed study 2, which compared meals containing black walnuts, English walnuts (EW), or no nuts (control). Blood was collected at fasting, 30, 60, 120, and 180min postprandially. In study 1, ANGPTL3 was suppressed more in pecan vs. control in males (iAUC: -579.4±219.4 vs. -128.4±87.1pg/mL/3h, P<.05). In study 2, there was no difference in ANGPTL3 between black walnuts vs. EW, but ANGPTL3 was suppressed more in control vs. black walnuts in females only (iAUC: -196.4±138.4 vs. 102.1±90.1pg/mL/3h, P<.05). There were no differences in ANGPTL4 between treatments. In conclusion, adding pecans to a meal decreased ANGPTL3 in males, but not females. These data highlight the importance of investigating the impact of nutrients and sex on postprandial ANGPTL3 ad -4 responses to better understand their ability to reduce cardiovascular disease risk.
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Affiliation(s)
- Liana L Guarneiri
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Mai O Spaulding
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Alexis R Marquardt
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Jamie A Cooper
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Chad M Paton
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA; Department of Food Science and Technology, University of Georgia, Athens, GA, USA.
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Zhang YX, Qu SS, Zhang LH, Gu YY, Chen YH, Huang ZY, Liu MH, Zou W, Jiang J, Chen JQ, Wang YJ, Zhou FH. The Role of Ophiopogonin D in Atherosclerosis: Impact on Lipid Metabolism and Gut Microbiota. Am J Chin Med 2021; 49:1449-1471. [PMID: 34263719 DOI: 10.1142/s0192415x21500683] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Gut microbiota has been proven to play an important role in many metabolic diseases and cardiovascular disease, particularly atherosclerosis. Ophiopogonin D (OPD), one of the effective compounds in Ophiopogon japonicus, is considered beneficial to metabolic syndrome and cardiovascular diseases. In this study, we have illuminated the effect of OPD in ApoE knockout (ApoE[Formula: see text] mice on the development of atherosclerosis and gut microbiota. To investigate the potential ability of OPD to alleviate atherosclerosis, 24 eight-week-old male ApoE[Formula: see text] mice (C57BL/6 background) were fed a high-fat diet (HFD) for 12 weeks, and 8 male C57BL/6 mice were fed a normal diet, serving as the control group. ApoE[Formula: see text] mice were randomly divided into the model group, OPD group, and simvastatin group ([Formula: see text]= 8). After treatment for 12 consecutive weeks, the results showed that OPD treatment significantly decreased the plaque formation and levels of serum lipid compared with those in the model group. In addition, OPD improved oral glucose tolerance and insulin resistance as well as reducing hepatocyte steatosis. Further analysis revealed that OPD might attenuate atherosclerosis through inhibiting mTOR phosphorylation and the consequent lipid metabolism signaling pathways mediated by SREBP1 and SCD1 in vivo and in vitro. Furthermore, OPD treatment led to significant structural changes in gut microbiota and fecal metabolites in HFD-fed mice and reduced the relative abundance of Erysipelotrichaceae genera associated with cholesterol metabolism. Collectively, these findings illustrate that OPD could significantly protect against atherosclerosis, which might be associated with the moderation of lipid metabolism and alterations in gut microbiota composition and fecal metabolites.
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Affiliation(s)
- Ya-Xin Zhang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Shan-Shan Qu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Li-Hua Zhang
- Department of Gynaecology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510310, P. R. China
| | - Yu-Yan Gu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Yi-Hao Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Zhi-Yong Huang
- Department of Otolaryngology, The Third Affiliated Hospital, Southern Medical University, Guangzhou 510630, P. R. China
| | - Meng-Hua Liu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, P. R. China
| | - Wei Zou
- NHC Key Laboratory of Birth Defects Research, Prevention and Treatment Hunan Provincial Maternal and Child Health Care Hospital, Changsha 410008, P. R. China
| | - Jing Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P. R. China
| | - Jun-Qi Chen
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Southern Medical University, Guangzhou 510630, P. R. China
| | - Yu-Jue Wang
- Department of Laboratory Animal Administration Center, Southern Medical University, Guangzhou 510515, P. R. China
| | - Feng-Hua Zhou
- The Fifth Affiliated Hospital, Southern Medical University, Guangzhou 510920, P. R. China
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Rong B, Wu Q, Reiter RJ, Sun C. The Mechanism of Oral Melatonin Ameliorates Intestinal and Adipose Lipid Dysmetabolism Through Reducing Escherichia Coli-Derived Lipopolysaccharide. Cell Mol Gastroenterol Hepatol 2021; 12:1643-67. [PMID: 34242820 DOI: 10.1016/j.jcmgh.2021.06.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Gut microbiota have been reported to be sensitive to circadian rhythms and host lipometabolism, respectively. Although melatonin-mediated beneficial efforts on many physiological sites have been revealed, the regulatory actions of oral melatonin on the communication between gut microbiota and host are still not clear. Angiopoietin-like 4 (ANGPTL4) has been shown to be strongly responsible for the regulation of systemic lipid metabolism. Herein, we identified that oral melatonin improved lipid dysmetabolism in ileum and epididymal white adipose tissue (eWAT) via gut microbiota and ileac ANGPTL4. METHODS Analyses of jet-lag (JL) mice, JL mice with oral melatonin administration (JL+MT), and the control for mRNA and protein expression regarding lipid uptake and accumulation in ileum and eWAT were made. Gut microbiome sequencing and experimental validation of target strains were included. Functional analysis of key factors/pathways in the various rodent models, including the depletion of gut microbiota, mono-colonization of Escherichia coli, and other genetic intervention was made. Analyses of transcriptional regulation and effects of melatonin on E coli-derived lipopolysaccharide (LPS) in vitro were made. RESULTS JL mice have a higher level of ileal lipid uptake, fat accumulation in eWAT, and lower level of circulating ANGPTL4 in comparison with the control mice. JL mice also showed a significantly higher abundance of E coli and LPS than the control mice. Conversely, oral melatonin supplementation remarkably reversed these phenotypes. The test of depletion of gut microbiota further demonstrated that oral melatonin-mediated improvements on lipometabolism in JL mice were dependent on the presence of gut microbiota. By mono-colonization of E coli, LPS has been determined to trigger these changes similar to JL. Furthermore, we found that LPS served as a pivotal link that contributed to activating toll-like receptor 4 (TLR4)/signal transducer and activator of transcription 3 (STAT3_/REV-ERBα) signaling to up-regulate nuclear factor interleukin-3-regulated protein (NFIL3) expression, resulting in increased lipid uptake in ileum. In MODE-K cells, the activation of NFIL3 has further been shown to inhibit ANGPTL4 transcription, which is closely associated with lipid uptake and transport in peripheral tissues. Finally, we confirmed that melatonin inhibited LPS via repressing the expression of LpxC in E coli. CONCLUSIONS Overall, oral melatonin decreased the quantity of E coli-generated LPS, which alleviated NFIL3-induced transcriptional inhibition of ANGPTL4 through TLR4/IL-22/STAT3 signaling in ileum, thereby resulting in the amelioration of ileal lipid intake and lower fat accumulation in eWAT. These results address a novel regulation of oral melatonin originating from gut microbiota to host distal tissues, suggesting that microbe-generated metabolites are potential therapies for melatonin-mediated improvement of circadian rhythm disruption and related metabolic syndrome.
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Innes H, Buch S, Barnes E, Hampe J, Marjot T, Stickel F. The rs738409 G Allele in PNPLA3 Is Associated With a Reduced Risk of COVID-19 Mortality and Hospitalization. Gastroenterology 2021; 160:2599-2601.e2. [PMID: 33652012 PMCID: PMC7912355 DOI: 10.1053/j.gastro.2021.02.059] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 12/26/2022]
Affiliation(s)
- Hamish Innes
- School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom; Division of Epidemiology and Public Health, School of Medicine, University of Nottingham, Nottingham, United Kingdom; Public Health Scotland, Glasgow, United Kingdom.
| | - Stephan Buch
- Medical Department 1, University Hospital Dresden, Technical University of Dresden, Dresden, Germany
| | - Eleanor Barnes
- Peter Medawar Building for Pathogen Research, Nuffield Department of Medicine, Oxford University, Oxford, United Kingdom; Oxford NIHR Biomedical Research Centre, Oxford University, Oxford, United Kingdom
| | - Jochen Hampe
- Medical Department 1, University Hospital Dresden, Technical University of Dresden, Dresden, Germany
| | - Thomas Marjot
- Oxford Liver Unit, Translational Gastroenterology Unit, Oxford University Hospitals National Health Service Foundation Trust, University of Oxford, Oxford, United Kingdom
| | - Felix Stickel
- Department of Gastroenterology and Hepatology, University Hospital of Zurich, Zurich, Switzerland
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Casari I, Manfredi M, Metharom P, Falasca M. Dissecting lipid metabolism alterations in SARS-CoV-2. Prog Lipid Res 2021; 82:101092. [PMID: 33571544 PMCID: PMC7869689 DOI: 10.1016/j.plipres.2021.101092] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 02/06/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the cause of the COVID-19 pandemic that has infected over a hundred million people globally. There have been more than two million deaths recorded worldwide, with no end in sight until a widespread vaccination will be achieved. Current research has centred on different aspects of the virus interaction with cell surface receptors, but more needs to be done to further understand its mechanism of action in order to develop a targeted therapy and a method to control the spread of the virus. Lipids play a crucial role throughout the viral life cycle, and viruses are known to exploit lipid signalling and synthesis to affect host cell lipidome. Emerging studies using untargeted metabolomic and lipidomic approaches are providing new insight into the host response to COVID-19 infection. Indeed, metabolomic and lipidomic approaches have identified numerous circulating lipids that directly correlate to the severity of the disease, making lipid metabolism a potential therapeutic target. Circulating lipids play a key function in the pathogenesis of the virus and exert an inflammatory response. A better knowledge of lipid metabolism in the host-pathogen interaction will provide valuable insights into viral pathogenesis and to the development of novel therapeutic targets.
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Affiliation(s)
- Ilaria Casari
- Metabolic Signalling Group, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia 6102, Australia
| | - Marcello Manfredi
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy; Center for Translational Research on Autoimmune and Allergic Diseases, University of Piemonte Orientale, Novara, Italy
| | - Pat Metharom
- Platelet Research Group, Perth Blood Institute, West Perth, WA 6005, Australia; Western Australian Centre for Thrombosis and Haemostasis, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia; Curtin Medical School, Curtin Health and Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA 6102, Australia
| | - Marco Falasca
- Metabolic Signalling Group, Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia 6102, Australia.
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Ding XM, Mu YD, Zhang KY, Wang JP, Bai SP, Zeng QF, Peng HW. Vitamin E improves antioxidant status but not lipid metabolism in laying hens fed a aged corn-containing diet. Anim Biosci 2021; 34:276-284. [PMID: 32299164 PMCID: PMC7876719 DOI: 10.5713/ajas.19.0934] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/05/2020] [Accepted: 03/29/2020] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE The objective of this study was to determine whether a dietary vitamin E (VE) supplement could alleviate any detrimental effects of aged corn on lipid metabolism and antioxidant status in laying hens. METHODS The experiment consisted of a 2×3 factorial design with two corn types (normal corn and aged corn (stored for 4 yr) and three concentrations of VE (0, 20, and 100 IU/kg). A total of 216 Lohmann laying hens (50 wk of age) were randomly allocated into six treatment diets for 12 wk. Each treatment had 6 replicates of 6 hens per replicate. RESULTS The results show that aged corn significantly decreased the content of low-density lipoprotein cholesterol (p<0.05), and reduced chemokine-like receptor 1 (CMKLR1) mRNA expression (p<0.05) in the liver compared to controls. Diet with VE did not alter the content of crude fat and cholesterol (p>0.05), or acetyl-CoA carboxylase, lipoprotein lipase, fatty acid synthase or CMKLR1 mRNA expression (p>0.05) in the liver among treatment groups. Aged corn significantly increased the content of malondialdehyde (MDA) (p<0.05) and decreased superoxide dismutase (SOD) activity (p<0.05) in the liver. The VE increased the content of MDA (p<0.05) but decreased glutathione peroxidase (GSH-Px) activity in serum (p<0.01) and in the ovaries (p<0.05). Adding VE at 20 and 100 IU/kg significantly increased GSH-Px activity (p<0.05) in liver and in serum (p<0.01), 100 IU/kg VE significantly increased SOD activity (p<0.05) in serum. Aged corn had no significant effects on GSH-Px mRNA or SOD mRNA expression (p<0.01) in the liver and ovaries. Addition of 100 IU/kg VE could significantly increase SOD mRNA expression (p<0.01) in the liver and ovary. CONCLUSION Aged corn affected lipid metabolism and decreased the antioxidant function of laying hens. Dietary VE supplementation was unable to counteract the negative effects of aged corn on lipid metabolism. However, addition of 100 IU/kg VE prevented aged corninduced lipid peroxidation in the organs of laying hens.
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Affiliation(s)
- X. M. Ding
- Institute of Animal Nutrition, Sichuan Agricultural University, Key laboratory of Animal Disease-resistant Nutrition, Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition, Sichuan Province Chengdu, 611130, China
| | - Y. D. Mu
- Institute of Animal Nutrition, Sichuan Agricultural University, Key laboratory of Animal Disease-resistant Nutrition, Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition, Sichuan Province Chengdu, 611130, China
| | - K. Y. Zhang
- Institute of Animal Nutrition, Sichuan Agricultural University, Key laboratory of Animal Disease-resistant Nutrition, Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition, Sichuan Province Chengdu, 611130, China
| | - J. P. Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, Key laboratory of Animal Disease-resistant Nutrition, Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition, Sichuan Province Chengdu, 611130, China
| | - S. P. Bai
- Institute of Animal Nutrition, Sichuan Agricultural University, Key laboratory of Animal Disease-resistant Nutrition, Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition, Sichuan Province Chengdu, 611130, China
| | - Q. F. Zeng
- Institute of Animal Nutrition, Sichuan Agricultural University, Key laboratory of Animal Disease-resistant Nutrition, Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition, Sichuan Province Chengdu, 611130, China
| | - H. W. Peng
- Institute of Animal Nutrition, Sichuan Agricultural University, Key laboratory of Animal Disease-resistant Nutrition, Ministry of Education, Key laboratory of Animal Disease-resistant Nutrition, Sichuan Province Chengdu, 611130, China
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Park J, Choi K, Lee J, Jung JM, Lee Y. The Effect of Korean Red Ginseng on Bisphenol A-Induced Fatty Acid Composition and Lipid Metabolism-Related Gene Expression Changes. Am J Chin Med 2020; 48:1841-1858. [PMID: 33300480 DOI: 10.1142/s0192415x20500925] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Bisphenol A (BPA), which is known to be an endocrine-disrupting chemical (EDC), is associated not only with estrogen activity and reproductive toxicity but also with a variety of metabolic disorders. BPA affects glucose tolerance, cholesterol biosynthesis, and fatty acid synthesis. Ginseng is a traditional medicinal plant that has been widely used in East Asia for more than 2000 years, and a number of health effects have been reported. Korean Red Ginseng (KRG) has also been shown to have effects on lipid metabolism and body weight reduction in vivo in obese mice. In this study, we administered BPA and KRG to ovariectomized (OVX) ICR mice. BPA (800 mg/kg/day) and KRG (1.2 g/kg/day) were orally administered to OVX mice for 3 days. KRG inhibited the increase in total fatty acid level by BPA as determined by lipid profiling in the liver of OVX mice. In addition, transcriptome analysis showed that KRG inhibited BPA-induced changes in lipid metabolic process-related genes. Our findings suggest that KRG can regulate BPA-induced changes in lipid metabolism.
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Affiliation(s)
- Joonwoo Park
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
| | - KeunOh Choi
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
| | - Jeonggeun Lee
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
| | - Jong-Min Jung
- Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
| | - YoungJoo Lee
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
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Wan X, Yang Z, Ji H, Li N, Yang Z, Xu L, Yang H, Wang Z. Effects of lycopene on abdominal fat deposition, serum lipids levels and hepatic lipid metabolism-related enzymes in broiler chickens. Anim Biosci 2020; 34:385-392. [PMID: 33152222 PMCID: PMC7961199 DOI: 10.5713/ajas.20.0432] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/20/2020] [Indexed: 11/27/2022] Open
Abstract
Objective The present study was conducted to investigate the effects of lycopene on growth performance, abdominal fat deposition, serum lipids levels, activities of hepatic lipid metabolism related enzymes and genes expression in broiler chickens. Methods A total of 256 healthy one-day-old male Arbor Acres broiler chicks were randomly divided into four groups with eight replicates of eight birds each. Birds were fed basal diet supplemented with 0 (control), 100, 200, and 400 mg/kg lycopene, respectively. Results Dietary 100 mg/kg lycopene increased the body weight at 21 day of age compared to the control group (p<0.05). Compared to the basal diet, broilers fed diet with 100 mg/kg lycopene had decreased abdominal fat weight, and broilers fed diet with 100 and 200 mg/kg lycopene had decreased abdominal fat percentage (p<0.05). Compared to control, diets with 100, 200, and 400 mg/kg lycopene reduced the levels of total triglyceride and total cholesterol in serum, and diets with 100 and 200 mg/kg lycopene reduced the level of serum low density lipoprotein cholesterol (p<0.05). The activity of fatty acid synthase (FAS) in 400 mg/kg lycopene treated broilers and the activity of acetyl-CoA carboxylase (ACC) in 100, 200, and 400 mg/kg lycopene treated broilers were lower than those fed basal diet (p<0.05). Lycopene increased the mRNA abundance of adenosine monophosphate activated protein kinase α (AMPK-α), whereas decreased the mRNA abundance of sterol regulatory element-binding protein 1, FAS, and ACC compared to the control group (p<0.05). Conclusion Dietary lycopene supplementation can alleviate abdominal fat deposition and decrease serum lipids levels, possibly through activating the AMPK signaling pathway, thereby regulating lipid metabolism such as lipogenesis. Therefore, lycopene or lycopene-rich plant materials might be added to poultry feed to regulate lipid metabolism.
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Affiliation(s)
- Xiaoli Wan
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Zhengfeng Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Haoran Ji
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Ning Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Zhi Yang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Lei Xu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Haiming Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Zhiyue Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China
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Zhang L, Zhang Z, Li C, Zhu T, Gao J, Zhou H, Zheng Y, Chang Q, Wang M, Wu J, Ran L, Wu Y, Miao H, Zou X, Liang B. S100A11 Promotes Liver Steatosis via FOXO1-Mediated Autophagy and Lipogenesis. Cell Mol Gastroenterol Hepatol 2021; 11:697-724. [PMID: 33075563 DOI: 10.1016/j.jcmgh.2020.10.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Nonalcoholic fatty liver disease (NAFLD) is becoming a severe liver disorder worldwide. Autophagy plays a critical role in liver steatosis. However, the role of autophagy in NAFLD remains exclusive and under debate. In this study, we investigated the role of S100 calcium binding protein A11 (S100A11) in the pathogenesis of hepatic steatosis. METHODS We performed liver proteomics in a well-established tree shrew model of NAFLD. The expression of S100A11 in different models of NAFLD was detected by Western blot and/or quantitative polymerase chain reaction. Liver S100A11 overexpression mice were generated by injecting a recombinant adenovirus gene transfer vector through the tail vein and then induced by a high-fat and high-cholesterol diet. Cell lines with S100a11 stable overexpression were established with a recombinant lentiviral vector. The lipid content was measured with either Bodipy staining, Oil Red O staining, gas chromatography, or a triglyceride kit. The autophagy and lipogenesis were detected in vitro and in vivo by Western blot and quantitative polymerase chain reaction. The functions of Sirtuin 1, histone deacetylase 6 (HDAC6), and FOXO1 were inhibited by specific inhibitors. The interactions between related proteins were analyzed by a co-immunoprecipitation assay and immunofluorescence analysis. RESULTS The expression of S100A11 was up-regulated significantly in a time-dependent manner in the tree shrew model of NAFLD. S100A11 expression was induced consistently in oleic acid-treated liver cells as well as the livers of mice fed a high-fat diet and NAFLD patients. Both in vitro and in vivo overexpression of S100A11 could induce hepatic lipid accumulation. Mechanistically, overexpression of S100A11 activated an autophagy and lipogenesis process through up-regulation and acetylation of the transcriptional factor FOXO1, consequently promoting lipogenesis and lipid accumulation in vitro and in vivo. Inhibition of HDAC6, a deacetylase of FOXO1, showed similar phenotypes to S100A11 overexpression in Hepa 1-6 cells. S100A11 interacted with HDAC6 to inhibit its activity, leading to the release and activation of FOXO1. Under S100A11 overexpression, the inhibition of FOXO1 and autophagy could alleviate the activated autophagy as well as up-regulated lipogenic genes. Both FOXO1 and autophagy inhibition and Dgat2 deletion could reduce liver cell lipid accumulation significantly. CONCLUSIONS A high-fat diet promotes liver S100A11 expression, which may interact with HDAC6 to block its binding to FOXO1, releasing or increasing the acetylation of FOXO1, thus activating autophagy and lipogenesis, and accelerating lipid accumulation and liver steatosis. These findings indicate a completely novel S100A11-HDAC6-FOXO1 axis in the regulation of autophagy and liver steatosis, providing potential possibilities for the treatment of NAFLD.
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Chen LW, Chuang WY, Hsieh YC, Lin HH, Lin WC, Lin LJ, Chang SC, Lee TT. Effects of dietary supplementation with Taiwanese tea byproducts and probiotics on growth performance, lipid metabolism, and the immune response in red feather native chickens. Anim Biosci 2020; 34:393-404. [PMID: 32882776 PMCID: PMC7961192 DOI: 10.5713/ajas.20.0223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 07/10/2020] [Indexed: 12/11/2022] Open
Abstract
Objective This study compared the catechin composition of different tea byproducts and investigated the effects of dietary supplementation with green tea byproducts on the accumulation of abdominal fat, the modulation of lipid metabolism, and the inflammatory response in red feather native chickens. Methods Bioactive compounds were detected, and in vitro anti-obesity capacity analyzed via 3T3-L1 preadipocytes. In animal experiments, 320 one-day-old red feather native chickens were divided into 4 treatment groups: control, basal diet supplemented with 0.5% Jinxuan byproduct (JBP), basal diet supplemented with 1% JBP, or basal diet supplemented with 5×106 colony-forming unit (CFU)/kg Bacillus amyloliquefaciens+5×106 CFU/kg Saccharomyces cerevisiae (BA+SC). Growth performance, serum characteristics, carcass characteristics, and the mRNA expression of selected genes were measured. Results This study compared several cultivars of tea, but Jinxuan showed the highest levels of the anti-obesity compound epigallocatechin gallate. 3T3-L1 preadipocytes treated with Jinxuan extract significantly reduced lipid accumulation. There were no significant differences in growth performance, serum characteristics, or carcass characteristics among the groups. However, in the 0.5% JBP group, mRNA expression of fatty acid synthase (FAS) and acetyl-CoA carboxylase (ACC) were significantly decreased. In the 1% JBP group, FAS, ACC and peroxisome proliferator-activated receptor γ levels were significantly decreased. Moreover, inflammation-related mRNA expression levels were decreased by the addition of JBP. Conclusion JBP contained abundant catechins and related bioactive compounds, which reduced lipid accumulation in 3T3-L1 preadipocytes, however there was no significant reduction in abdominal fat. This may be due to a lack of active anti-obesity compounds or because the major changes in fat metabolism were not in the abdomen. Nonetheless, lipogenesis-related and inflammation-related mRNA expression were reduced in the 1% JBP group. In addition, dietary supplementation with tea byproducts could reduce the massive amount of byproducts created during tea production and modulate lipid metabolism and the inflammatory response in chickens.
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Affiliation(s)
- L W Chen
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan
| | - W Y Chuang
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan
| | - Y C Hsieh
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan
| | - H H Lin
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan
| | - W C Lin
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan
| | - L J Lin
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, 404, Taiwan
| | - S C Chang
- Kaohsiung Animal Propagation Station, Livestock Research Institute, Council of Agriculture, 912, Taiwan
| | - T T Lee
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan.,The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, 402, Taiwan
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Corn KC, Windham MA, Rafat M. Lipids in the tumor microenvironment: From cancer progression to treatment. Prog Lipid Res 2020; 80:101055. [PMID: 32791170 DOI: 10.1016/j.plipres.2020.101055] [Citation(s) in RCA: 162] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 12/11/2022]
Abstract
Over the past decade, the study of metabolic abnormalities in cancer cells has risen dramatically. Cancer cells can thrive in challenging environments, be it the hypoxic and nutrient-deplete tumor microenvironment or a distant tissue following metastasis. The ways in which cancer cells utilize lipids are often influenced by the complex interactions within the tumor microenvironment and adjacent stroma. Adipocytes can be activated by cancer cells to lipolyze their triglyceride stores, delivering secreted fatty acids to cancer cells for uptake through numerous fatty acid transporters. Cancer-associated fibroblasts are also implicated in lipid secretion for cancer cell catabolism and lipid signaling leading to activation of mitogenic and migratory pathways. As these cancer-stromal interactions are exacerbated during tumor progression, fatty acids secreted into the microenvironment can impact infiltrating immune cell function and phenotype. Lipid metabolic abnormalities such as increased fatty acid oxidation and de novo lipid synthesis can provide survival advantages for the tumor to resist chemotherapeutic and radiation treatments and alleviate cellular stresses involved in the metastatic cascade. In this review, we highlight recent literature that demonstrates how lipids can shape each part of the cancer lifecycle and show that there is significant potential for therapeutic intervention surrounding lipid metabolic and signaling pathways.
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Abstract
In clinical cohort studies, high expression of long-chain acyl-coenzyme A synthetases 1 (ACSL1 gene) in peripheral white blood cells of patients with acute myocardial infarction (AMI) has been utilized as molecular markers of myocardial infarction diagnosis. The plasma triglyceride level of AMI patients is significantly higher than that of healthy individuals. We hypothesized that the high expression of ACSL1 increases the level of triglyceride, which is one of the pathogenesis of AMI promoted by ACSL1. In this report, cell culture based methods were adopted to test the hypothesis and further investigate the effect and mechanism of ACSL1 on lipid metabolism. In this study, liver cells of healthy individuals were cultured, the overexpression and the knockdown vectors of ACSL1 were constructed and transfected into liver cells. The transfection was verified at the mRNA and protein level. Intracellular triglyceride content was quantitatively analyzed using ELISA. Changes of genes related to lipid metabolism were subsequently measured through PCR array. Overexpression of ACSL1 led to higher gene expression and protein levels compared to control and the triglyceride content was significantly increased in overexpressing cells. The expression level of fatty acid oxidation pathway PPARγ was significantly down-regulated compared with the control group, as were genes associated with fatty acid synthesis pathways: SREBP1, ACC, FAS, and SCD1. ACSL1 knockdown decreased the content of triglyceride whereas PPARγ was up-regulated and SREBP1, ACC, FAS, and SCD1 were down-regulated compared with the control group. In summary, high expression of ACSL1 reduced fatty acid β-oxidation through the PPARγ pathway, thereby increasing triglyceride levels.
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Affiliation(s)
- Tingting Li
- Department of Cardiology China-Japan Union Hospital of Jilin University, Changchun, China 130033
| | - Xiangdong Li
- Department of Cardiology China-Japan Union Hospital of Jilin University, Changchun, China 130033
| | - Heyu Meng
- Department of Cardiology China-Japan Union Hospital of Jilin University, Changchun, China 130033
| | - Lili Chen
- Department of Cardiology China-Japan Union Hospital of Jilin University, Changchun, China 130033
| | - Fanbo Meng
- Department of Cardiology China-Japan Union Hospital of Jilin University, Changchun, China 130033
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Muroya S, Ogasawara H, Nohara K, Oe M, Ojima K, Hojito M. Coordinated alteration of mRNA-microRNA transcriptomes associated with exosomes and fatty acid metabolism in adipose tissue and skeletal muscle in grazing cattle. Asian-Australas J Anim Sci 2019; 33:1824-1836. [PMID: 32054170 PMCID: PMC7649083 DOI: 10.5713/ajas.19.0682] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/14/2019] [Indexed: 02/07/2023]
Abstract
Objective On the hypothesis that grazing of cattle prompts organs to secrete or internalize circulating microRNAs (c-miRNAs) in parallel with changes in energy metabolism, we aimed to clarify biological events in adipose, skeletal muscle, and liver tissues in grazing Japanese Shorthorn (JSH) steers by a transcriptomic approach. Methods The subcutaneous fat (SCF), biceps femoris muscle (BFM), and liver in JSH steers after three months of grazing or housing were analyzed using microarray and quantitative polymerase chain reaction (qPCR), followed by gene ontology (GO) and functional annotation analyses. Results The results of transcriptomics indicated that SCF was highly responsive to grazing compared to BFM and liver tissues. The ‘Exosome’, ‘Carbohydrate metabolism’ and ‘Lipid metabolism’ were extracted as the relevant GO terms in SCF and BFM, and/or liver from the >1.5-fold-altered mRNAs in grazing steers. The qPCR analyses showed a trend of upregulated gene expression related to exosome secretion and internalization (charged multivesicular body protein 4A, vacuolar protein sorting-associated protein 4B, vesicle associated membrane protein 7, caveolin 1) in the BFM and SCF, as well as upregulation of lipolysis-associated mRNAs (carnitine palmitoyltransferase 1A, hormone-sensitive lipase, perilipin 1, adipose triglyceride lipase, fatty acid binding protein 4) and most of the microRNAs (miRNAs) in SCF. Moreover, gene expression related to fatty acid uptake and inter-organ signaling (solute carrier family 27 member 4 and angiopoietin-like 4) was upregulated in BFM, suggesting activation of SCF-BFM organ crosstalk for energy metabolism. Meanwhile, expression of plasma exosomal miR-16a, miR-19b, miR-21-5p, and miR-142-5p was reduced. According to bioinformatic analyses, the c-miRNA target genes are associated with the terms ‘Endosome’, ‘Caveola’, ‘Endocytosis’, ‘Carbohydrate metabolism’, and with pathways related to environmental information processing and the endocrine system. Conclusion Exosome and fatty acid metabolism-related gene expression was altered in SCF of grazing cattle, which could be regulated by miRNA such as miR-142-5p. These changes occurred coordinately in both the SCF and BFM, suggesting involvement of exosome in the SCF-BFM organ crosstalk to modulate energy metabolism.
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Affiliation(s)
- Susumu Muroya
- Animal Products Research Division, NARO Institute of Livestock and Grassland Science (NILGS), Tsukuba, Ibaraki 300-1207, Japan
| | - Hideki Ogasawara
- Field Science Center, School of Veterinary Medicine, Kitasato University, Yakumo, Hokkaido 049-3121, Japan
| | - Kana Nohara
- Field Science Center, School of Veterinary Medicine, Kitasato University, Yakumo, Hokkaido 049-3121, Japan
| | - Mika Oe
- Animal Products Research Division, NARO Institute of Livestock and Grassland Science (NILGS), Tsukuba, Ibaraki 300-1207, Japan
| | - Koichi Ojima
- Animal Products Research Division, NARO Institute of Livestock and Grassland Science (NILGS), Tsukuba, Ibaraki 300-1207, Japan
| | - Masayuki Hojito
- Field Science Center, School of Veterinary Medicine, Kitasato University, Yakumo, Hokkaido 049-3121, Japan
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Pedro-Botet J, Pintó X. LDL-cholesterol: The lower the better. Clin Investig Arterioscler 2019; 31 Suppl 2:16-27. [PMID: 31813618 DOI: 10.1016/j.arteri.2019.10.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/03/2019] [Accepted: 10/04/2019] [Indexed: 12/12/2022]
Abstract
The reduction of low density lipoprotein-cholesterol (LDL-chol) has been associated with a decrease in cardiovascular morbidity and mortality. It has been demonstrated that there is no value of LDL-chol below which there ceases to be a preventive benefit with its reduction, and neither has it been observed that there is a higher incidence of secondary effects associated with lower concentrations of LDL-chol. Although there is a wide range of lipid-lowering drugs available, a high percentage of patients do not achieve the desired LDL-chol levels. The high-potency statins reduce the LDL-chol by 15-30%, and can double the percentage of patients that reach their desired level. This combination has shown to be safe and effective in the primary and secondary prevention of cardiovascular disease. Another option is the combination of statins with exchange resins, although this requires a more complex management. The inhibition of PCSK9 protein with monoclonal antibodies reduces the LDL-chol by more than 60%, and is effective in the prevention of cardiovascular disease. However, due to its cost, its use is restricted to patients with ischaemia or familial hypercholesterolaemia that do not achieve the desired levels with conventional drugs. The evidence base as regards the benefit and safety of achieving the desired levels of LDL-chol is very wide and is still increasing. In the next few years, it may be necessary to adjust the intensity of the hypercholesterolaemia treatment to the level of vascular risk of the patients, and to the level of reduction necessary to achieve the therapeutic targets. This will result in a more effective cardiovascular prevention and in a better quality of life, particularly in the large group of patients at higher vascular risk.
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Lee MT, Lin WC, Lin LJ, Wang SY, Chang SC, Lee TT. Effects of dietary Antrodia cinnamomea fermented product supplementation on metabolism pathways of antioxidant, inflammatory, and lipid metabolism pathways-a potential crosstalk. Asian-Australas J Anim Sci 2019; 33:1167-1179. [PMID: 31480133 PMCID: PMC7322654 DOI: 10.5713/ajas.19.0393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 08/19/2019] [Indexed: 12/26/2022]
Abstract
Objective This study was conducted to fathom the underlying mechanisms of nutrition intervention and redox sensitive transcription factors regulated by Antrodia cinnamomea fermented product (FAC) dietary supplementation in broiler chickens. Methods Four hundreds d-old broilers (41±0.5 g/bird) assigned to 5 groups were examined after consuming control diet, or control diet replaced with 5% wheat bran (WB), 10% WB, 5% FAC, and 10% FAC. Liver mRNA expression of antioxidant, inflammatory and lipid metabolism pathways were analyzed. Prostaglandin E2 (PGE2) concentration in each group were tested in the chicken peripheral blood mononuclear cells (cPBMCs) of 35-d old broilers to represent the stress level of the chickens. Furthermore, these cells were stimulated with 2,2′-Azobis(2-amidinopropane) dihydrochloride (AAPH) and lipopolysaccharide (LPS) to evaluate the cell stress tolerance by measuring cell viability and oxidative species. Results Heme oxygenase-1, glutathione S-transferase, glutamate-cysteine ligase, catalytic subunit, and superoxide dismutase, and nuclear factor (erythroid-derived 2)-like 2 (Nrf2) that regulates the above antioxidant genes were all up-regulated significantly in FAC groups. Reactive oxygen species modulator protein 1 and NADPH oxygenase 1 were both rather down-regulated in 10% FAC group as comparison with two WB groups. Despite expressing higher level than control group, birds receiving diet containing FAC had significantly lower expression level in nuclear factor-kappa B (NF-κB) and other genes (inducible nitric oxide synthase, tumor necrosis factor-α, interleukin-1β, nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing-3, and cyclooxygenase 2) involving in inflammatory pathways. Additionally, except for 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase that showed relatively higher in both groups, the WB, lipoprotein lipase, Acetyl-CoA carboxylase, fatty acid synthase, fatty acid binding protein, fatty acid desaturase 2 and peroxisome proliferator-activated receptor alpha genes were expressed at higher levels in 10% FAC group. In support of above results, promoted Nrf2 and inhibited NF-κB nuclear translocation in chicken liver were found in FAC containing groups. H2O2 and NO levels induced by LPS and AAPH in cPBMCs were compromised in FAC containing diet. In 35-d-old birds, PGE2 production in cPBMCs was also suppressed by the FAC diet. Conclusion FAC may promote Nrf2 antioxidant pathway and positively regulate lipid metabolism, both are potential inhibitor of NF-κB inflammatory pathway.
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Affiliation(s)
- M T Lee
- Department of Animal Science, National Chung Hsing University, Taichung 402, Taiwan
| | - W C Lin
- Department of Animal Science, National Chung Hsing University, Taichung 402, Taiwan
| | - L J Lin
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 402, Taiwan
| | - S Y Wang
- Department of Forestry, National Chung Hsing University, Taichung 402, Taiwan
| | - S C Chang
- Kaohsiung Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Kaohsiung 912, Taiwan
| | - T T Lee
- Department of Animal Science, National Chung Hsing University, Taichung 402, Taiwan.,The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan
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Wang H, Wang J, Yang DD, Liu ZL, Zeng YQ, Chen W. Expression of lipid metabolism genes provides new insights into intramuscular fat deposition in Laiwu pigs. Asian-Australas J Anim Sci 2019; 33:390-397. [PMID: 31480195 PMCID: PMC7054625 DOI: 10.5713/ajas.18.0225] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 06/11/2019] [Indexed: 11/27/2022]
Abstract
Objective The objective of this study was to measure the special expression pattern of lipid metabolism genes and investigate the molecular mechanisms underlying intramuscular fat (IMF) deposition in Longissimus dorsi muscle of Laiwu pigs. Methods Thirty-six pigs (Laiwu n = 18; Duroc×Landrace×Yorkshire n = 18) were used for the measurement of the backfat thickness, marbling score, IMF content, and expression of lipid metabolism genes. Results Significant correlations were found between IMF content and the mRNA expression of lipid metabolism genes. Of the 14 fat deposition genes measured, fatty acid synthase (FASN) showed the strongest correlation (r = 0.75, p = 0.001) with IMF content, and of the 6 fat removal genes, carnitine palmitoyl transferase 1B (CPT1B) exhibited the greatest negative correlation (r = −0.66, p = 0.003) with IMF content in Laiwu pig. Multiple regression analysis showed that CPT1B, FASN, solute carrier family 27 member 1 (SLC27A1), and fatty acid binding protein 3 (FABP3) contributed 38% of the prediction value for IMF content in Laiwu pigs. Of these four variables, CPT1B had the greatest contribution to IMF content (14%) followed by FASN (11%), SLC27A1 (9%), and FABP3 (4%). Conclusion Our results indicate that the combined effects of an upregulation in fat deposition genes and downregulation in fat removal genes promotes IMF deposition in Laiwu pigs.
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Affiliation(s)
- Hui Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong 271000, China
| | - Jin Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong 271000, China
| | - Dan-Dan Yang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong 271000, China
| | - Zong-Li Liu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong 271000, China
| | - Yong-Qing Zeng
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong 271000, China
| | - Wei Chen
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong 271000, China
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Wu D, Yu Z, Zhao S, Qu Z, Sun W, Jiang Y. Lipid metabolism participates in human membranous nephropathy identified by whole-genome gene expression profiling. Clin Sci (Lond) 2019; 133:1255-69. [PMID: 31160422 DOI: 10.1042/CS20181110] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/20/2019] [Accepted: 06/03/2019] [Indexed: 02/02/2023]
Abstract
A genomics approach is an effective way to understand the possible mechanisms underlying the onset and progression of disease. However, very limited results have been published regarding whole-genome expression analysis of human idiopathic membranous nephropathy (iMN) using renal tissue. In the present study, gene expression profiling using renal cortex tissue from iMN patients and healthy controls was conducted; differentially expressed genes (DEGs) were filtered out, and 167 up- and 291 down-regulated genes were identified as overlapping DEGs (ODEGs). Moreover, enrichment analysis and protein-protein network construction were performed, revealing enrichment of genes mainly in cholesterol metabolism and arachidonic acid metabolism, among others, with 38 hub genes obtained. Furthermore, we found several associations between circulating lipid concentrations and hub gene signal intensities in the renal cortex. Our findings indicate that lipid metabolism, including cholesterol metabolism and arachidonic acid metabolism, may participate in iMN pathogenesis through key genes, including apolipoprotein A1 (APOA1), apolipoprotein B (APOB), apolipoprotein C3 (APOC3), cholesteryl ester transfer protein (CETP), and phospholipase A2 group XIIB (PLA2G12B).
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Zhao W, Chen X, Xiao J, Chen XH, Zhang XF, Wang T, Zhen YG, Qin GX. Prepartum body condition score affects milk yield, lipid metabolism, and oxidation status of Holstein cows. Asian-Australas J Anim Sci 2019; 32:1889-1896. [PMID: 31010972 PMCID: PMC6819678 DOI: 10.5713/ajas.18.0817] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/22/2019] [Indexed: 12/18/2022]
Abstract
Objective This study aimed to investigate the effects of prepartum body condition score (BCS) on the milk yield, lipid metabolism, and oxidative status of Holstein cows. Methods A total of 112 multiparous Holstein cows were divided into 4 groups according to the BCS at 21 days before calving: medium BCS (3.0~3.25, MBCS), high BCS (3.5~3.75, HBCS), higher BCS (4.0~4.25, HerBCS), and highest BCS (4.5~5.0, HestBCS). Blood samples were collected on 21, 14, and 7 days before calving (precalving), on the calving day (calving), and on 7, 14, and 21 days after calving (postcalving). The indices of lipid metabolism and oxidative status were analyzed using bovine-specific ELISA kit. Colostrum were taken after calving and analyzed by a refractometer and milk analyzer. The individual milk yield was recorded every 3 days. Results The density and levels of immune globulin and lactoprotein of colostrum from Holstein cows in the HestBCS group were the highest (p<0.05). These animals not only had the highest (p<0.05) levels of serum non-esterified fatty acids and beta-hydroxybutyrate, but also had the highest (p<0.05) levels of malondialdehyde, superoxide dismutase, catalase, vitamin A, and vitamin E. In addition, greater (p<0.05) BCS loss was observed in the HestBCS cows. Conclusion This study demonstrates that the milk yield, lipid metabolism, and oxidative status of Holstein cows are related to prepartum BCS and BCS loss during the transition period. HestBCS cows are more sensitive to oxidative stress and suffer greater loss of BCS after calving, whereas the MBCS animals had better milk yield performance.
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Affiliation(s)
- Wei Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.,JLAU-Borui Dairy Science and Technology R&D Centre of Jilin Agricultural University, Changchun 130118, China
| | - Xue Chen
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.,JLAU-Borui Dairy Science and Technology R&D Centre of Jilin Agricultural University, Changchun 130118, China
| | - Jun Xiao
- JLAU-Borui Dairy Science and Technology R&D Centre of Jilin Agricultural University, Changchun 130118, China
| | - Xiao Hui Chen
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Xue Feng Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.,JLAU-Borui Dairy Science and Technology R&D Centre of Jilin Agricultural University, Changchun 130118, China.,Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.,Key Laboratory of Animal Nutrition and Feed Science of Jilin Province, Jilin Agricultural University, Changchun 130118, China
| | - Tao Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.,JLAU-Borui Dairy Science and Technology R&D Centre of Jilin Agricultural University, Changchun 130118, China.,Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.,Key Laboratory of Animal Nutrition and Feed Science of Jilin Province, Jilin Agricultural University, Changchun 130118, China
| | - Yu Guo Zhen
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.,JLAU-Borui Dairy Science and Technology R&D Centre of Jilin Agricultural University, Changchun 130118, China.,Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.,Key Laboratory of Animal Nutrition and Feed Science of Jilin Province, Jilin Agricultural University, Changchun 130118, China
| | - Gui Xin Qin
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China.,Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.,Key Laboratory of Animal Nutrition and Feed Science of Jilin Province, Jilin Agricultural University, Changchun 130118, China
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Boyer A, Park SB, de Boer Y, Li Q, Liang TJ. TM6SF2 Promotes Lipidation and Secretion of Hepatitis C Virus in Infected Hepatocytes. Gastroenterology 2018; 155:1923-1935.e8. [PMID: 30144428 PMCID: PMC6279583 DOI: 10.1053/j.gastro.2018.08.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/17/2018] [Accepted: 08/06/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Hepatitis C virus (HCV) co-opts the very-low-density lipoprotein pathway for morphogenesis, maturation, and secretion, and circulates as lipoviroparticles (LVPs). We investigated the functions and underlying mechanisms of the lipid-associated TM6SF2 protein in modulating LVP formation and the HCV life cycle. METHODS We knocked down or overexpressed TM6SF2 in hepatic cells and examined HCV infection, measuring viral RNA and protein levels and infectious LVP titers. The density of secreted LVPs was evaluated by iodixanol gradient assay. We measured levels and patterns of TM6SF2 in liver biopsies from 73 patients with chronic hepatitis C, livers of HCV-infected humanized Alb-uPA/SCID/beige mice, and HCV-infected Huh7.5.1 cells. RESULTS TM6SF2 knockdown in hepatocytes reduced viral RNA and infectious viral particle secretion without affecting HCV genome replication, translation, or assembly. Overexpression of TM6SF2 reduced intracellular levels of HCV RNA and infectious LVPs, and conversely increased their levels in the culture supernatants. In HCV-infected cells, TM6SF2 overexpression resulted in production of more infectious LVPs in the lower-density fractions of supernatant. HCV infection increased TM6SF2 expression in cultured cells, humanized livers of mice, and liver tissues of HCV patients. TM6SF2 messenger RNA levels correlated positively with HCV RNA levels in liver biopsies from patients. SREBF2 appears to mediate the ability of HCV to increase the expression of TM6SF2 in hepatic cells. CONCLUSIONS In studies of cells, mice and human liver tissues, we found TM6SF2 is required for maturation, lipidation, and secretion of infectious LVPs. HCV, in turn, up-regulates expression of TM6SF2 to facilitate productive infection.
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