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Chan WS, Ng CF, Pang BPS, Hang M, Tse MCL, Iu ECY, Ooi XC, Yang X, Kim JK, Lee CW, Chan CB. Exercise-induced BDNF promotes PPARδ-dependent reprogramming of lipid metabolism in skeletal muscle during exercise recovery. Sci Signal 2024; 17:eadh2783. [PMID: 38502732 PMCID: PMC11022078 DOI: 10.1126/scisignal.adh2783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 02/29/2024] [Indexed: 03/21/2024]
Abstract
Post-exercise recovery is essential to resolve metabolic perturbations and promote long-term cellular remodeling in response to exercise. Here, we report that muscle-generated brain-derived neurotrophic factor (BDNF) elicits post-exercise recovery and metabolic reprogramming in skeletal muscle. BDNF increased the post-exercise expression of the gene encoding PPARδ (peroxisome proliferator-activated receptor δ), a transcription factor that is a master regulator of lipid metabolism. After exercise, mice with muscle-specific Bdnf knockout (MBKO) exhibited impairments in PPARδ-regulated metabolic gene expression, decreased intramuscular lipid content, reduced β-oxidation, and dysregulated mitochondrial dynamics. Moreover, MBKO mice required a longer period to recover from a bout of exercise and did not show increases in exercise-induced endurance capacity. Feeding naïve mice with the bioavailable BDNF mimetic 7,8-dihydroxyflavone resulted in effects that mimicked exercise-induced adaptations, including improved exercise capacity. Together, our findings reveal that BDNF is an essential myokine for exercise-induced metabolic recovery and remodeling in skeletal muscle.
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Affiliation(s)
- Wing Suen Chan
- School of Biological Sciences, the University of Hong Kong, 5N10 Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong, China
| | - Chun Fai Ng
- School of Biological Sciences, the University of Hong Kong, 5N10 Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong, China
| | - Brian Pak Shing Pang
- School of Biological Sciences, the University of Hong Kong, 5N10 Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong, China
| | - Miaojia Hang
- School of Biological Sciences, the University of Hong Kong, 5N10 Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong, China
| | - Margaret Chui Ling Tse
- School of Biological Sciences, the University of Hong Kong, 5N10 Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong, China
| | - Elsie Chit Yu Iu
- School of Biological Sciences, the University of Hong Kong, 5N10 Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong, China
| | - Xin Ci Ooi
- School of Biological Sciences, the University of Hong Kong, 5N10 Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong, China
| | - Xiuying Yang
- Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing 101399, China
| | - Jason K. Kim
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA
| | - Chi Wai Lee
- Department of Biology, Hong Kong Baptist University, Hong Kong, China
| | - Chi Bun Chan
- School of Biological Sciences, the University of Hong Kong, 5N10 Kadoorie Biological Sciences Building, Pokfulam Road, Hong Kong, China
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, China
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2
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Shastry A, Dunham-Snary K. Metabolomics and mitochondrial dysfunction in cardiometabolic disease. Life Sci 2023; 333:122137. [PMID: 37788764 DOI: 10.1016/j.lfs.2023.122137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/21/2023] [Accepted: 09/29/2023] [Indexed: 10/05/2023]
Abstract
Circulating metabolites are indicators of systemic metabolic dysfunction and can be detected through contemporary techniques in metabolomics. These metabolites are involved in numerous mitochondrial metabolic processes including glycolysis, fatty acid β-oxidation, and amino acid catabolism, and changes in the abundance of these metabolites is implicated in the pathogenesis of cardiometabolic diseases (CMDs). Epigenetic regulation and direct metabolite-protein interactions modulate metabolism, both within cells and in the circulation. Dysfunction of multiple mitochondrial components stemming from mitochondrial DNA mutations are implicated in disease pathogenesis. This review will summarize the current state of knowledge regarding: i) the interactions between metabolites found within the mitochondrial environment during CMDs, ii) various metabolites' effects on cellular and systemic function, iii) how harnessing the power of metabolomic analyses represents the next frontier of precision medicine, and iv) how these concepts integrate to expand the clinical potential for translational cardiometabolic medicine.
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Affiliation(s)
- Abhishek Shastry
- Department of Medicine, Queen's University, Kingston, ON, Canada
| | - Kimberly Dunham-Snary
- Department of Medicine, Queen's University, Kingston, ON, Canada; Department of Biomedical & Molecular Sciences, Queen's University, Kingston, ON, Canada.
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3
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Kabeer SW, Pant R, Sharma S, Tikoo K. Laccaic acid restores epigenetic alterations responsible for high fat diet induced insulin resistance in C57BL/6J mice. Chem Biol Interact 2023; 374:110401. [PMID: 36828244 DOI: 10.1016/j.cbi.2023.110401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/10/2023] [Accepted: 02/08/2023] [Indexed: 02/24/2023]
Abstract
Laccaic acid, the major constituent of the food colouring agent-lac dye, possesses antioxidant and anti-inflammatory properties. Here we have evaluated the effects of laccaic acid on the high-fat diet induced insulin resistance in C57BL/6J mice. Insulin resistance was developed in mice by feeding high-fat diet for 12 weeks. 6 week treatment with laccaic acid showed significant improvement in the morphometric, biochemical parameters and liver function. Western blotting experiments showed, laccaic acid increased phosphorylation of IRS1/2/AKT/GSK3β which is suppressed under insulin-resistant conditions in liver. Furthermore, it also attenuated the inflammatory ERK/NFκB signalling, thereby reducing the expression of inflammatory cytokines- TNFα, IL-1β and IL-6. Concomitantly, laccaic acid increased AMPK/AKT-mediated phosphorylation of FOXO1, preventing its nuclear translocation and transcriptional activation of gluconeogenic genes (G6PC and PCK1). Interestingly, treatment with laccaic acid also prevented high-fat diet induced alterations of histone methylation (H3K27me3 and H3K36me2) at global level. Our chromatin-immunoprecipitation data shows high-fat diet induced loss of inactivation mark H3K27me3 at FOXO1 promoter was regained upon laccaic acid treatment. Additionally, the expression of the H3K27 methylating enzyme EZH2 was also upregulated by laccaic acid. Together it all results in the downregulation of FOXO1 gene expression. To the best of our knowledge, we provide first evidence that laccaic acid either directly or indirectly modulates the epigenetic landscape of genes responsible for high-fat diet induced insulin resistance.
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Affiliation(s)
- Shaheen Wasil Kabeer
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, Punjab, 160062, India
| | - Rajat Pant
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, Punjab, 160062, India
| | - Shivam Sharma
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, Punjab, 160062, India
| | - Kulbhushan Tikoo
- Laboratory of Epigenetics and Diseases, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, Punjab, 160062, India.
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4
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Rochette E, Saidi O, Merlin É, Duché P. Physical activity as a promising alternative for young people with juvenile idiopathic arthritis: Towards an evidence-based prescription. Front Immunol 2023; 14:1119930. [PMID: 36860845 PMCID: PMC9969142 DOI: 10.3389/fimmu.2023.1119930] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 01/31/2023] [Indexed: 02/17/2023] Open
Abstract
Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease in young people. Although biologics now enable most children and adolescents with JIA to enjoy clinical remission, patients present lower physical activity and spend more time in sedentary behavior than their healthy counterparts. This impairment probably results from a physical deconditioning spiral initiated by joint pain, sustained by apprehension on the part of both the child and the child's parents, and entrenched by lowered physical capacities. This in turn may exacerbate disease activity and lead to unfavorable health outcomes including increased risks of metabolic and mental comorbidities. Over the past few decades, there has been growing interest in the health benefits of increased overall physical activity as well as exercise interventions in young people with JIA. However, we are still far from evidence-based physical activity and / or exercise prescription for this population. In this review, we give an overview of the available data supporting physical activity and / or exercise as a behavioral, non-pharmacological alternative to attenuate inflammation while also improving metabolism, disease symptoms, poor sleep, synchronization of circadian rhythms, mental health, and quality of life in JIA. Finally, we discuss clinical implications, identify gaps in knowledge, and outline a future research agenda.
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Affiliation(s)
- Emmanuelle Rochette
- Department of Pediatrics, Clermont-Ferrand University Hospital, Clermont-Ferrand, France,Clermont Auvergne University, INSERM, CIC 1405, CRECHE unit, Clermont-Ferrand, France,Toulon University, Laboratory “Impact of Physical Activity on Health” (IAPS), Toulon, France,*Correspondence: Emmanuelle Rochette,
| | - Oussama Saidi
- Toulon University, Laboratory “Impact of Physical Activity on Health” (IAPS), Toulon, France
| | - Étienne Merlin
- Department of Pediatrics, Clermont-Ferrand University Hospital, Clermont-Ferrand, France,Clermont Auvergne University, INSERM, CIC 1405, CRECHE unit, Clermont-Ferrand, France
| | - Pascale Duché
- Toulon University, Laboratory “Impact of Physical Activity on Health” (IAPS), Toulon, France
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5
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Li J, Chen Y, Liu Q, Tian Z, Zhang Y. Mechanistic and therapeutic links between rheumatoid arthritis and diabetes mellitus. Clin Exp Med 2022; 23:287-299. [DOI: 10.1007/s10238-022-00816-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 02/24/2022] [Indexed: 02/07/2023]
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Lactobacillus reuteri FYNLJ109L1 Attenuating Metabolic Syndrome in Mice via Gut Microbiota Modulation and Alleviating Inflammation. Foods 2021; 10:foods10092081. [PMID: 34574191 PMCID: PMC8469823 DOI: 10.3390/foods10092081] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/28/2021] [Accepted: 08/31/2021] [Indexed: 12/30/2022] Open
Abstract
Metabolic syndrome is caused by an excessive energy intake in a long-term, high-fat and/or high-sugar diet, resulting in obesity and a series of related complications, which has become a global health concern. Probiotics intervention can regulate the gut microbiota and relieve the systemic and chronic low-grade inflammation, which is an alternative to relieving metabolic syndrome. The aim of this work was to explore the alleviation of two different Lactobacillusreuteri strains on metabolic syndrome. Between the two L. reuteri strains, FYNLJ109L1 had a better improvement effect on blood glucose, blood lipid, liver tissue damage and other related indexes than NCIMB 30242. In particular, FYNLJ109L1 reduced weight gain, food intake and fat accumulation. Additionally, it can regulate the gut microbiota, increase IL-10, and reduce IL-6 and tumor necrosis factor-α (TNF-α), as well as liver injury, and further reduce insulin resistance and regulate lipid metabolism disorders. In addition, it could modulate the gut microbiota, particularly a decreased Romboutsia and Clostridium sensu stricto-1, and an increased Acetatifactor. The results indicated that FYNLJ109L1 could improve metabolic syndrome significantly via alleviating inflammation and gut microbiota modulation.
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7
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Hardy E, Fernandez-Patron C. Targeting MMP-Regulation of Inflammation to Increase Metabolic Tolerance to COVID-19 Pathologies: A Hypothesis. Biomolecules 2021; 11:biom11030390. [PMID: 33800947 PMCID: PMC7998259 DOI: 10.3390/biom11030390] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 02/28/2021] [Accepted: 03/02/2021] [Indexed: 02/06/2023] Open
Abstract
Many individuals infected with the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) develop no or only mild symptoms, but some can go on onto develop a spectrum of pathologies including pneumonia, acute respiratory distress syndrome, respiratory failure, systemic inflammation, and multiorgan failure. Many pathogens, viral and non-viral, can elicit these pathologies, which justifies reconsidering whether the target of therapeutic approaches to fight pathogen infections should be (a) the pathogen itself, (b) the pathologies elicited by the pathogen interaction with the human host, or (c) a combination of both. While little is known about the immunopathology of SARS-CoV-2, it is well-established that the above-mentioned pathologies are associated with hyper-inflammation, tissue damage, and the perturbation of target organ metabolism. Mounting evidence has shown that these processes are regulated by endoproteinases (particularly, matrix metalloproteinases (MMPs)). Here, we review what is known about the roles played by MMPs in the development of COVID-19 and postulate a mechanism by which MMPs could influence energy metabolism in target organs, such as the lung. Finally, we discuss the suitability of MMPs as therapeutic targets to increase the metabolic tolerance of the host to damage inflicted by the pathogen infection, with a focus on SARS-CoV-2.
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Affiliation(s)
- Eugenio Hardy
- Center for Molecular Immunology, 16040 Havana, Cuba
- Correspondence: (E.H.); (C.F.-P.)
| | - Carlos Fernandez-Patron
- Department of Biochemistry, Mazankowski Alberta Heart Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
- Correspondence: (E.H.); (C.F.-P.)
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8
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Zhang X, Xu D, Chen M, Wang Y, He L, Wang L, Wu J, Yin J. Impacts of Selected Dietary Nutrient Intakes on Skeletal Muscle Insulin Sensitivity and Applications to Early Prevention of Type 2 Diabetes. Adv Nutr 2021; 12:1305-1316. [PMID: 33418570 PMCID: PMC8321846 DOI: 10.1093/advances/nmaa161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/11/2020] [Accepted: 11/13/2020] [Indexed: 11/14/2022] Open
Abstract
As the largest tissue in the body, skeletal muscle not only plays key roles in movement and glucose uptake and utilization but also mediates insulin sensitivity in the body by myokines. Insulin resistance in the skeletal muscle is a major feature of type 2 diabetes (T2D). A weakened response to insulin could lead to muscle mass loss and dysfunction. Increasing evidence in skeletal muscle cells, rodents, nonhuman primates, and humans has shown that restriction of caloric or protein intake positively mediates insulin sensitivity. Restriction of essential or nonessential amino acids was reported to facilitate glucose utilization and regulate protein turnover in skeletal muscle under certain conditions. Furthermore, some minerals, such as zinc, chromium, vitamins, and some natural phytochemicals such as curcumin, resveratrol, berberine, astragalus polysaccharide, emodin, and genistein, have been shown recently to protect skeletal muscle cells, mice, or humans with or without diabetes from insulin resistance. In this review, we discuss the roles of nutritional interventions in the regulation of skeletal muscle insulin sensitivity. A comprehensive understanding of the nutritional regulation of insulin signaling would contribute to the development of tools and treatment programs for improving skeletal muscle health and for preventing T2D.
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Affiliation(s)
- Xin Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China,State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Doudou Xu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Meixia Chen
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yubo Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Linjuan He
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lu Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jiangwei Wu
- College of Animal Science and Technology, Northwest Agriculture and Forestry University, Yangling, China
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9
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Bhusal A, Rahman MH, Lee WH, Lee IK, Suk K. Satellite glia as a critical component of diabetic neuropathy: Role of lipocalin-2 and pyruvate dehydrogenase kinase-2 axis in the dorsal root ganglion. Glia 2020; 69:971-996. [PMID: 33251681 DOI: 10.1002/glia.23942] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022]
Abstract
Diabetic peripheral neuropathy (DPN) is a common complication of uncontrolled diabetes. The pathogenesis of DPN is associated with chronic inflammation in dorsal root ganglion (DRG), eventually causing structural and functional changes. Studies on DPN have primarily focused on neuronal component, and there is limited knowledge about the role of satellite glial cells (SGCs), although they completely enclose neuronal soma in DRG. Lipocalin-2 (LCN2) is a pro-inflammatory acute-phase protein found in high levels in diverse neuroinflammatory and metabolic disorders. In diabetic DRG, the expression of LCN2 was increased exclusively in the SGCs. This upregulation of LCN2 in SGCs correlated with increased inflammatory responses in DRG and sciatic nerve. Furthermore, diabetes-induced inflammation and morphological changes in DRG, as well as sciatic nerve, were attenuated in Lcn2 knockout (KO) mice. Lcn2 gene ablation also ameliorated neuropathy phenotype as determined by nerve conduction velocity and intraepidermal nerve fiber density. Mechanistically, studies using specific gene KO mice, adenovirus-mediated gene overexpression strategy, and primary cultures of DRG SGCs and neurons have demonstrated that LCN2 enhances the expression of mitochondrial gate-keeping regulator pyruvate dehydrogenase kinase-2 (PDK2) through PPARβ/δ, thereby inhibiting pyruvate dehydrogenase activity and increasing production of glycolytic end product lactic acid in DRG SGCs and neurons of diabetic mice. Collectively, our findings reveal a crucial role of glial LCN2-PPARβ/δ-PDK2-lactic acid axis in progression of DPN. Our results establish a link between pro-inflammatory LCN2 and glycolytic PDK2 in DRG SGCs and neurons and propose a novel glia-based mechanism and drug target for therapy of DPN. MAIN POINTS: Diabetes upregulates LCN2 in satellite glia, which in turn increases pyruvate dehydrogenase kinase-2 (PDK2) expression and lactic acid production in dorsal root ganglia (DRG). Glial LCN2-PDK2-lactic acid axis in DRG plays a crucial role in the pathogenesis of diabetic neuropathy.
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Affiliation(s)
- Anup Bhusal
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Sciences, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Md Habibur Rahman
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Sciences, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,Brain Science and Engineering Institute, Kyungpook National University, Daegu, Republic of Korea
| | - Won-Ha Lee
- School of Life Sciences, Brain Korea 21 Plus/Kyungpook National University Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - In-Kyu Lee
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Republic of Korea.,Research Institute of Aging and Metabolism, Kyungpook National University, Daegu, Republic of Korea
| | - Kyoungho Suk
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Sciences, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,Brain Science and Engineering Institute, Kyungpook National University, Daegu, Republic of Korea
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10
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Yu L, Gui S, Liu Y, Qiu X, Qiu B, Zhang X, Pan J, Fan J, Qi S, Zhang G. Long intergenic non-protein coding RNA 00475 silencing acts as a tumor suppressor in glioma under hypoxic condition by impairing microRNA-449b-5p-dependent AGAP2 up-regulation. Ther Adv Med Oncol 2020; 12:1758835920940936. [PMID: 32849915 PMCID: PMC7425262 DOI: 10.1177/1758835920940936] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 06/12/2020] [Indexed: 01/03/2023] Open
Abstract
Objective Long non-coding RNAs have been demonstrated to be involved in the progression of a variety of cancers, including glioma. Through microarray analyses, long intergenic non-protein coding RNA 00475 (LINC00475) was identified in the glioma development. However, its potential role remains incompletely understood. This study aimed to elucidate the effect of LINC00475 on the development of glioma under hypoxic conditions. Methods Glioma cells underwent hypoxic treatment and were collected. The functional role of LINC00475 and AGAP2 in glioma was determined using ectopic expression, depletion, and reporter assay experiments. Then, the expression of LINC00475, microRNA (miR)-449b-5p, AGAP2, FAK, and HIF-1α was determined. In addition, cell migration and invasion were examined. Finally, a tumor xenograft was carried out in nude mice to explore the role of LINC00475 on oxidation in vivo. Results LINC00475 was identified to be overexpressed in hypoxic glioma samples, which was further observed to bind to and down-regulate miR-449b-5p, and negatively targeted AGAP2. Moreover, we also revealed a positive correlation between LINC00475 and AGAP2 expression in glioma. In addition, silencing of LINC00475 decreased the extent of FAK phosphorylation and reduced the expression of HIF-1α and AGAP2. It was also observed that LINC00475 silencing suppressed glioma cell proliferation, migration, and invasion, and promoted cell apoptosis. Moreover, oxidation of nude mice was promoted by LINC00475 silencing. Conclusion Taken together, LINC00475 silencing exerted an inhibitory effect on glioma under hypoxic conditions by down-regulating AGAP2 via up-regulation of miR-449b-5p.
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Affiliation(s)
- Lei Yu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou 510515, Guangdong Province, P. R. China
| | - Si Gui
- Department of Radiology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, P. R. China
| | - Yawei Liu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Xiaoyu Qiu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Binghui Qiu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Xi'an Zhang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Jun Pan
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Jun Fan
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Songtao Qi
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, P. R. China
| | - Guozhong Zhang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou 510515, Guangdong Province, P. R. China
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11
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Patsalos O, Dalton B, Leppanen J, Ibrahim MAA, Himmerich H. Impact of TNF-α Inhibitors on Body Weight and BMI: A Systematic Review and Meta-Analysis. Front Pharmacol 2020; 11:481. [PMID: 32351392 PMCID: PMC7174757 DOI: 10.3389/fphar.2020.00481] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 03/27/2020] [Indexed: 12/12/2022] Open
Abstract
Objective The aim of this systematic review and meta-analysis of longitudinal studies was to ascertain to effects of TNF-α inhibitor therapy on body weight and BMI. Methods Three databases (PubMed, OVID, and EMBASE) were systematically searched from inception to August 2018. We identified prospective, retrospective, and randomized controlled studies in adults with immune-mediated inflammatory diseases treated with TNF-α inhibitors based on pre-specified inclusion criteria. A random-effects model was used to estimate standardised mean change (SMCC). Results Twenty-six longitudinal studies with a total of 1,245 participants were included in the meta-analysis. We found evidence for a small increase in body weight (SMCC = 0.24, p = .0006, 95% CI [0.10, 0.37]) and in BMI (SMCC = 0.26, p < .0001, 95% CI [0.13, 0.39]). On average, patients gained 0.90kg (SD = 5.13) under infliximab, 2.34kg (D = 5.65) under etanercept and 2.27kg (SD = 4.69) during treatment with adalimumab within the duration of the respective studies (4–104 weeks). Conclusion Our results yield further support the for the view that TNF-α inhibitors increase body weight and BMI as a potential side effect. Modulating cytokine signaling could be a future therapeutic mechanism to treat disorders associated with weight changes such as anorexia nervosa.
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Affiliation(s)
- Olivia Patsalos
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Bethan Dalton
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Jenni Leppanen
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Mohammad A A Ibrahim
- Department of Clinical Immunological Medicine and Allergy, King's Health Partners, King's College Hospital, London, United Kingdom
| | - Hubertus Himmerich
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
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12
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Chan CB, Ahuja P, Ye K. Developing Insulin and BDNF Mimetics for Diabetes Therapy. Curr Top Med Chem 2019; 19:2188-2204. [PMID: 31660832 DOI: 10.2174/1568026619666191010160643] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/29/2019] [Accepted: 09/05/2019] [Indexed: 01/06/2023]
Abstract
Diabetes is a global public health concern nowadays. The majority of diabetes mellitus (DM) patients belong to type 2 diabetes mellitus (T2DM), which is highly associated with obesity. The general principle of current therapeutic strategies for patients with T2DM mainly focuses on restoring cellular insulin response by potentiating the insulin-induced signaling pathway. In late-stage T2DM, impaired insulin production requires the patients to receive insulin replacement therapy for maintaining their glucose homeostasis. T2DM patients also demonstrate a drop of brain-derived neurotrophic factor (BDNF) in their circulation, which suggests that replenishing BDNF or enhancing its downstream signaling pathway may be beneficial. Because of their protein nature, recombinant insulin or BDNF possess several limitations that hinder their clinical application in T2DM treatment. Thus, developing orally active "insulin pill" or "BDNF pill" is essential to provide a more convenient and effective therapy. This article reviews the current development of non-peptidyl chemicals that mimic insulin or BDNF and their potential as anti-diabetic agents.
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Affiliation(s)
- Chi Bun Chan
- School of Biological Sciences, The University of Hong Kong, Hong Kong
| | - Palak Ahuja
- School of Biological Sciences, The University of Hong Kong, Hong Kong
| | - Keqiang Ye
- Department of Pathology and Laboratory Medicine, Emory University of School of Medicine, Atlanta, GA, United States
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Abstract
Metabolic control systems coordinate myriad processes across the cellular, tissue and organismal levels to optimize the allocation of limited supplies across multiple, often competing, metabolic demands. As such, the regulation of metabolism can be analysed from the perspective of the economic theory of supply and demand. Here, we discuss how such analyses can provide new insights into the logic of metabolic control. In particular, we suggest that, in addition to being subject to well-appreciated homeostatic control, metabolism is subject to supply-driven and demand-driven controls, each operated by a dedicated set of signals throughout various physiological states, including inflammation. Furthermore, we argue that systemic homeostasis is a derived feature that evolved from the control systems that monitor metabolic supply and demand.
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Affiliation(s)
- Jessica Ye
- Howard Hughes Medical Institute and Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Ruslan Medzhitov
- Howard Hughes Medical Institute and Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA.
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14
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Rochette E, Bourdier P, Pereira B, Doré E, Birat A, Ratel S, Echaubard S, Duché P, Merlin E. TNF blockade contributes to restore lipid oxidation during exercise in children with juvenile idiopathic arthritis. Pediatr Rheumatol Online J 2019; 17:47. [PMID: 31331342 PMCID: PMC6647146 DOI: 10.1186/s12969-019-0354-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/16/2019] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Children with juvenile idiopathic arthritis (JIA) have impaired physical abilities. TNF-α plays a crucial role in this pathogenesis, but it is also involved in the use of lipids and muscle health. Objective of this study was to explore substrate oxidation and impact of TNF blockade on energy metabolism in children with JIA as compared to healthy children. METHODS Fifteen non-TNF-blockaded and 15 TNF-blockaded children with JIA and 15 healthy controls were matched by sex, age, and Tanner stage. Participants completed a submaximal incremental exercise test on ergocycle to determine fat and carbohydrate oxidation rates by indirect calorimetry. RESULTS The maximal fat oxidation rate during exercise was lower in JIA children untreated by TNF blockade (134.3 ± 45.2 mg.min- 1) when compared to the controls (225.3 ± 92.9 mg.min- 1, p = 0.007); but was higher in JIA children under TNF blockade (163.2 ± 59.0 mg.min- 1, p = 0.31) when compared to JIA children untreated by TNF blockade. At the same relative exercise intensities, there was no difference in carbohydrate oxidation rate between three groups. CONCLUSIONS Lipid metabolism during exercise was found to be impaired in children with JIA. However, TNF treatment seems to improve the fat oxidation rate in this population. TRIAL REGISTRATION In ClinicalTrials.gov, reference number NCT02977416 , registered on 30 November 2016.
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Affiliation(s)
- Emmanuelle Rochette
- CHU Clermont-Ferrand, Pédiatrie, Hôpital Estaing, F-63000 Clermont-Ferrand, France
- Université Clermont Auvergne, INSERM, CIC 1405, Unité CRECHE, F-63000 Clermont-Ferrand, France
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques en conditions Physiologiques et Physiopathologiques (AME2P), EA 3533 Clermont-Ferrand, France
- CRNH-Auvergne, F-63000 Clermont-Ferrand, France
- Pédiatrie, CHU Estaing, 1, place Lucie et Raymond Aubrac, 63003 Clermont-Ferrand, France
| | - Pierre Bourdier
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques en conditions Physiologiques et Physiopathologiques (AME2P), EA 3533 Clermont-Ferrand, France
| | - Bruno Pereira
- CHU Clermont-Ferrand, Délégation de la Recherche Clinique et Innovations, F-63000 Clermont-Ferrand, France
| | - Eric Doré
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques en conditions Physiologiques et Physiopathologiques (AME2P), EA 3533 Clermont-Ferrand, France
- CRNH-Auvergne, F-63000 Clermont-Ferrand, France
| | - Anthony Birat
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques en conditions Physiologiques et Physiopathologiques (AME2P), EA 3533 Clermont-Ferrand, France
| | - Sébastien Ratel
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques en conditions Physiologiques et Physiopathologiques (AME2P), EA 3533 Clermont-Ferrand, France
| | - Stéphane Echaubard
- CHU Clermont-Ferrand, Pédiatrie, Hôpital Estaing, F-63000 Clermont-Ferrand, France
- Université Clermont Auvergne, INSERM, CIC 1405, Unité CRECHE, F-63000 Clermont-Ferrand, France
| | - Pascale Duché
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques en conditions Physiologiques et Physiopathologiques (AME2P), EA 3533 Clermont-Ferrand, France
- CRNH-Auvergne, F-63000 Clermont-Ferrand, France
- Université de Toulon, Laboratoire IAPS, F-83041 Toulon, France
| | - Etienne Merlin
- CHU Clermont-Ferrand, Pédiatrie, Hôpital Estaing, F-63000 Clermont-Ferrand, France
- Université Clermont Auvergne, INSERM, CIC 1405, Unité CRECHE, F-63000 Clermont-Ferrand, France
- Université Clermont Auvergne, INRA, UMR 1019 UNH, ECREIN, F-63000 Clermont-Ferrand, France
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15
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Kim CS, Joe Y, Choi HS, Back SH, Park JW, Chung HT, Roh E, Kim MS, Ha TY, Yu R. Deficiency of fibroblast growth factor 21 aggravates obesity-induced atrophic responses in skeletal muscle. JOURNAL OF INFLAMMATION-LONDON 2019; 16:17. [PMID: 31312114 PMCID: PMC6611052 DOI: 10.1186/s12950-019-0221-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 06/20/2019] [Indexed: 12/11/2022]
Abstract
Background Obesity-induced skeletal muscle inflammation is a major contributor of skeletal muscle loss/atrophy and is implicated in metabolic complications such as insulin resistance. Fibroblast growth factor 21 (FGF21) is known to be an important metabolic regulator with anti-inflammatory properties. However, the effect of FGF21 on skeletal muscle atrophy is unclear. In this study, we investigated the effect of FGF21 deficiency on obesity-induced skeletal muscle inflammation and atrophy in mice. Results The expression of atrophic factors (MuRF1 and Atrogin-1) was upregulated at the mRNA and/or protein levels in the skeletal muscle of FGF21-deficient obese mice compared with wild type obese control mice. This was accompanied by an increase in levels of inflammatory cytokines (TNFα and MCP-1) and a reduction in AMPK phosphorylation. FGF21 treatment markedly suppressed TNFα-mediated inflammatory and atrophic responses in cultured myotubes, and the actions of FGF21 were blunted by the AMPK inhibitor compound C. Conclusion These findings suggest that FGF21 deficiency aggravates obesity-induced inflammation and atrophic responses in the skeletal muscle of obese mice, and FGF21 may protect inflammation-mediated atrophy through the AMPK pathway.
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Affiliation(s)
- Chu-Sook Kim
- 1Department of Food Science and Nutrition, University of Ulsan, Ulsan, 44610 South Korea
| | - Yeonsoo Joe
- 2Department of Biological Science, University of Ulsan, Ulsan, 44610 South Korea
| | - Hye-Seon Choi
- 2Department of Biological Science, University of Ulsan, Ulsan, 44610 South Korea
| | - Sung Hoon Back
- 2Department of Biological Science, University of Ulsan, Ulsan, 44610 South Korea
| | - Jeong Woo Park
- 2Department of Biological Science, University of Ulsan, Ulsan, 44610 South Korea
| | - Hun Taeg Chung
- 2Department of Biological Science, University of Ulsan, Ulsan, 44610 South Korea
| | - Eun Roh
- 3Appetite Regulation Laboratory, Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul, 05505 South Korea
| | - Min-Seon Kim
- 4Division of Endocrinology and Metabolism, Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, 05505 South Korea
| | - Tae Youl Ha
- 5Research Group of Nutrition and Metabolic System, Korea Food Research Institute, Wanju, 55365 South Korea
| | - Rina Yu
- 1Department of Food Science and Nutrition, University of Ulsan, Ulsan, 44610 South Korea
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16
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Shi LL, Jia WH, Zhang L, Xu CY, Chen X, Yin L, Wang NQ, Fang LH, Qiang GF, Yang XY, Du GH. Glucose consumption assay discovers coptisine with beneficial effect on diabetic mice. Eur J Pharmacol 2019; 859:172523. [PMID: 31279667 DOI: 10.1016/j.ejphar.2019.172523] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/18/2019] [Accepted: 07/01/2019] [Indexed: 10/26/2022]
Abstract
Many drugs with anti-diabetic effects regulate glucose consumption in peripheral tissues. Via cellular glucose consumption assays, we identified that coptisine, a main effective constituent from the plant Coptis chinensis, enhanced hepatic and skeletal muscle glucose consumption. We further explored its effects on glucose metabolism in diabetic animals to elucidate its mechanism of action. Our results showed that coptisine did not show cytotoxicity. Intragastric administration of coptisine for ten days in normal ICR mice markedly decreased fasting blood-glucose levels without significant effects on body weight. In alloxan-induced type 1 diabetic mice, intragastric administration of coptisine for 28 days decreased fasting and non-fasting blood-glucose levels as well. In type 2 diabetic KKAy mice, intragastric administration of coptisine for nine weeks improved glucose tolerance. It decreased fasting/non-fasting blood-glucose and fructosamine levels. Coptisine decreased low-density lipoprotein and total cholesterol levels, however, had no significant effect on triglyceride levels. Coptisine increased AMPK phosphorylation while decreasing Akt phosphorylation in HepG2 hepatic cells and C2C12 myotubes. Coptisine also reduced mitochondrial respiration in isolated and cellular mitochondria, suggesting that coptisine lowered cellular energy levels. In particularly, coptisine administration (10-6 M) decreased the mitochondrial oxygen consumption rate (OCR) with a greater extracellular acidification rate (ECAR), resulting in an oxidative-to-glycolysis phosphorylation shifted for cellular energy generation. Our results demonstrate that coptisine acts as an enhancer of peripheral glucose consumption could improve glucose metabolism in diabetic animals. Coptisine may serve as a novel anti-diabetic agent and warrant further evaluation.
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Affiliation(s)
- Li-Li Shi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China
| | - Wei-Hua Jia
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China
| | - Li Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China
| | - Chun-Yang Xu
- College of Pharmacy, Harbin University of Commerce, Haerbin, China
| | - Xi Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China
| | - Lin Yin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China
| | - Nuo-Qi Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China
| | - Lian-Hua Fang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China
| | - Gui-Fen Qiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China
| | - Xiu-Ying Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China.
| | - Guan-Hua Du
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, PR China.
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17
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Hardy-Rando E, Fernandez-Patron C. Emerging pathways of communication between the heart and non-cardiac organs. J Biomed Res 2019; 33:145-155. [PMID: 29970623 PMCID: PMC6551427 DOI: 10.7555/jbr.32.20170137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The breakthrough discovery of cardiac natriuretic peptides provided the first direct demonstration of the connection between the heart and the kidneys for the maintenance of sodium and volume homeostasis in health and disease. Yet, little is still known about how the heart and other organs cross-talk. Here, we review three physiological mechanisms of communication linking the heart to other organs through: i) cardiac natriuretic peptides, ii) the microRNA-208a/mediator complex subunit-13 axis and iii) the matrix metalloproteinase-2 (MMP-2)/C-C motif chemokine ligand-7/cardiac secreted phospholipase A2 (sPLA2) axis – a pathway which likely applies to the many cytokines, which are cleaved and regulated by MMP-2. We also suggest experimental strategies to answer still open questions on the latter pathway. In short, we review evidence showing how the cardiac secretome influences the metabolic and inflammatory status of non-cardiac organs as well as the heart.
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Affiliation(s)
- Eugenio Hardy-Rando
- Biotechnology Laboratory, Study Center for Research and Biological Evaluations, Institute of Pharmacy and Foods, University of Havana, Havana PO Box 430, Cuba
| | - Carlos Fernandez-Patron
- Department of Biochemistry, Cardiovascular Research Centre, Mazankowski Alberta Heart Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
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18
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Li Y, Liu T, Zhang X, Zhao M, Zhang H, Feng F. Lactobacillus plantarum helps to suppress body weight gain, improve serum lipid profile and ameliorate low-grade inflammation in mice administered with glycerol monolaurate. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.12.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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19
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Li Y, Liu T, Zhao M, Zhong H, Luo W, Feng F. In vitro and in vivo investigations of probiotic properties of lactic acid bacteria isolated from Chinese traditional sourdough. Appl Microbiol Biotechnol 2019; 103:1893-1903. [DOI: 10.1007/s00253-018-9554-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 11/20/2018] [Accepted: 12/06/2018] [Indexed: 12/17/2022]
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20
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Zhu Z, Chen X, Xiao Y, Wen J, Chen J, Wang K, Chen G. Gestational diabetes mellitus alters DNA methylation profiles in pancreas of the offspring mice. J Diabetes Complications 2019; 33:15-22. [PMID: 30522793 DOI: 10.1016/j.jdiacomp.2018.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 11/02/2018] [Accepted: 11/02/2018] [Indexed: 12/20/2022]
Abstract
Gestational diabetes mellitus (GDM), which has an increasing global prevalence, contributes to the susceptibility to metabolic dysregulation and obesity in the offspring via epigenetic modifications. However, the underlying mechanism remains largely obscure. The current study established a GDM mice model to investigate the alternations in the metabolic phenotypes and genomic DNA methylation in the pancreas of the offspring. We found that in the GDM offspring, intrauterine hyperglycemia induced dyslipidemia, insulin resistance, and glucose intolerance. Meanwhile, altered DNA methylation patterns were exhibited in the pancreas and many differentially methylated regions (DMRs)-related genes were involved in glycolipids metabolism and related signaling pathways, including Agap2, Plcbr, Hnf1b, Gnas, Fbp2, Cdh13, Wnt2, Kcnq1, Lhcgr, Irx3, etc. Additionally, the overall hypermethylation of Agap2, verified by bisulfite sequencing PCR (BSP), was negatively correlated with its mRNA expression level. In conclusion, these findings suggest that the DNA methylation changes in the pancreatic genome of the GDM offspring may be associated with the glycolipid metabolism abnormalities, T2DM susceptibility, and obesity in the adult GDM offspring.
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Affiliation(s)
- Zhuangli Zhu
- Department of Endocrinology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Xiongfeng Chen
- Department of Scientific Research, Fujian Provincial Hospital, Fuzhou, Fujian, China.
| | - Yiqing Xiao
- Department of Endocrinology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Junping Wen
- Department of Endocrinology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Jinyan Chen
- Department of Scientific Research, Fujian Academy of Medical Sciences, Fuzhou, Fujian, China
| | - Kun Wang
- Department of Scientific Research, Fujian Academy of Medical Sciences, Fuzhou, Fujian, China
| | - Gang Chen
- Department of Endocrinology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China; Department of Scientific Research, Fujian Academy of Medical Sciences, Fuzhou, Fujian, China.
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21
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Chen X, Yin L, Jia WH, Wang NQ, Xu CY, Hou BY, Li N, Zhang L, Qiang GF, Yang XY, Du GH. Chronic Urotensin-II Administration Improves Whole-Body Glucose Tolerance in High-Fat Diet-Fed Mice. Front Endocrinol (Lausanne) 2019; 10:453. [PMID: 31379736 PMCID: PMC6660256 DOI: 10.3389/fendo.2019.00453] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 06/21/2019] [Indexed: 12/21/2022] Open
Abstract
Urotensin-II (U-II) is an endogenous peptide agonist of a G protein-coupled receptor-urotensin receptor. There are many conflicting findings about the effects of U-II on blood glucose. This study aims to explore the effects of U-II on glucose metabolism in high-fat diet-fed mice. Male C57BL/6J mice were fed a 45% high-fat diet or chow diet and were administered U-II intraperitoneally for in vivo study. Skeletal muscle C2C12 cells were used to determine the effects of U-II on glucose and fatty acid metabolism as well as mitochondrial respiratory function. In this study, we found that chronic U-II administration (more than 7 days) ameliorated glucose tolerance in high-fat diet-fed mice. In addition, chronic U-II administration reduced the weight gain and the adipose tissue weight, including visceral, subcutaneous, and brown adipose tissue, without a significant change in blood lipid levels. These were accompanied by the increased mRNA expression of the mitochondrial thermogenesis gene Ucp3 in skeletal muscle. Furthermore, in vitro treatment with U-II directly enhanced glucose and free fatty acid consumption in C2C12 cells with increased aerobic respiration. Taken together, chronic U-II stimulation leads to improvement on glucose tolerance in high-fat diet-fed mice and this effect maybe closely related to the reduction in adipose tissue weights and enhancement on energy substrate utilization in skeletal muscle.
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Affiliation(s)
- Xi Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
| | - Lin Yin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
| | - Wei-hua Jia
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
| | - Nuo-qi Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
| | - Chun-yang Xu
- College of Pharmacy, Harbin University of Commerce, Haerbin, China
| | - Bi-yu Hou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
| | - Na Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
| | - Li Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
| | - Gui-fen Qiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
| | - Xiu-ying Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
- *Correspondence: Xiu-ying Yang
| | - Guan-hua Du
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines and Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica of Peking Union Medical College, Beijing, China
- Guan-hua Du
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22
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Méndez-García LA, Trejo-Millán F, Martínez-Reyes CP, Manjarrez-Reyna AN, Esquivel-Velázquez M, Melendez-Mier G, Islas-Andrade S, Rojas-Bernabé A, Kzhyshkowska J, Escobedo G. Infliximab ameliorates tumor necrosis factor-alpha-induced insulin resistance by attenuating PTP1B activation in 3T3L1 adipocytes in vitro. Scand J Immunol 2018; 88:e12716. [PMID: 30260514 DOI: 10.1111/sji.12716] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/27/2018] [Accepted: 09/02/2018] [Indexed: 02/06/2023]
Abstract
Insulin resistance is the inability to respond to insulin and is considered a key pathophysiological factor in the development of type 2 diabetes. Tumor necrosis factor-alpha (TNF-alpha) can directly contribute to insulin resistance by disrupting the insulin signalling pathway via protein-tyrosine phosphatase 1B (PTP1B) activation, especially in adipocytes. Infliximab (Remicade® ) is a TNF-alpha-neutralizing antibody that has not been fully studied in insulin resistance. We investigated the effect of infliximab on TNF-alpha-induced insulin resistance in 3T3L1 adipocytes in vitro, and examined the possible molecular mechanisms involved. Once differentiated, adipocytes were cultured with 5 mmol L-1 2-deoxy-D-glucose-3 H and stimulated twice with 2 μmol L-1 insulin, in the presence or absence of 5 ng/mL TNF-alpha and/or 10 ng/mL infliximab. Glucose uptake was measured every 20 minutes for 2 hour, and phosphorylated forms of insulin receptor (IR), insulin receptor substrate-2 (IRS-2), protein kinase B (AKT) and PTP1B were determined by Western blotting. TNF-alpha-treated adipocytes showed a significant 64% decrease in insulin-stimulated glucose uptake as compared with control cells, whereas infliximab reversed TNF-alpha actions by significantly improving glucose incorporation. Although IR phosphorylation remained unaltered, TNF-alpha was able to increase PTP1B activation and decrease phosphorylation of IRS-2 and AKT. Notably, infliximab restored phosphorylation of IRS-2 and AKT by attenuating PTP1B activation. This work demonstrates for the first time that infliximab ameliorates TNF-alpha-induced insulin resistance in 3T3L1 adipocytes in vitro by restoring the insulin signalling pathway via PTP1B inhibition. Further clinical research is needed to determine the potential benefit of using infliximab for treating insulin resistance in patients.
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Affiliation(s)
- Lucia A Méndez-García
- Laboratory for Proteomics and Metabolomics, Research Division, General Hospital of Mexico "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - Fernanda Trejo-Millán
- Laboratory for Proteomics and Metabolomics, Research Division, General Hospital of Mexico "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - Camilo P Martínez-Reyes
- Laboratory for Proteomics and Metabolomics, Research Division, General Hospital of Mexico "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - Aarón N Manjarrez-Reyna
- Laboratory for Proteomics and Metabolomics, Research Division, General Hospital of Mexico "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - Marcela Esquivel-Velázquez
- Laboratory for Proteomics and Metabolomics, Research Division, General Hospital of Mexico "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - Guillermo Melendez-Mier
- Laboratory for Proteomics and Metabolomics, Research Division, General Hospital of Mexico "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - Sergio Islas-Andrade
- Laboratory for Proteomics and Metabolomics, Research Division, General Hospital of Mexico "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - Araceli Rojas-Bernabé
- Research Unit for Experimental Medicine, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Julia Kzhyshkowska
- Department of Innate Immunity and Tolerance, Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Galileo Escobedo
- Laboratory for Proteomics and Metabolomics, Research Division, General Hospital of Mexico "Dr. Eduardo Liceaga", Mexico City, Mexico
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23
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Deng Y, Chen G, Zhou R, Wu W, You Z, Meng W, Yang L, Qiu Y, Liu J, Li T. Direct evidence that hypoxia triggers the cardioprotective response of ischemic preconditioning in a dog double-circuit cardiopulmonary bypass model. Life Sci 2018; 209:395-402. [PMID: 30130539 DOI: 10.1016/j.lfs.2018.08.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 08/12/2018] [Accepted: 08/17/2018] [Indexed: 02/05/2023]
Abstract
AIMS It has been widely accepted that ischemic preconditioning (IPC) exhibits a promising and reproducible cardioprotective effect against ischemia/reperfusion (I/R) injury. However, the actual trigger that amplifies the molecular signaling and protects I/R heart is still unclear. MAIN METHODS To separate the factors involved in IPC, we established a dog double-circuit cardiopulmonary bypass (CPB) model, which consists of a systemic circuit and a coronary circuit. Forty-two male adult beagle dogs were randomly allocated into 7 groups: sham, I/R, IPC, hypoxia preconditioning (HPC), accumulated metabolite preconditioning (MPC), oxygenated or deoxygenated erythrocytes preconditioning (OxyEPC and DeoxyEPC). After pretreatment, dogs were subjected to 2 h-cardiac arrest and 2 h-reperfusion. KEY FINDINGS There were no differences in the cardiac function and hemodynamic parameters at baseline among groups. Like IPC, the hypoxia-related pretreatments HPC and DeoxyEPC improved post-arrest left ventricular systolic/diastolic performance and reduced pulmonary vascular resistance. The cardiac oxygen (O2) utilization was also greatly elevated in these hypoxia-related pretreatment groups, as evidenced by increased cardiac O2 consumption (VO2) and O2 extraction index (O2EI) and suppressed lactate level. Besides, we did not observe improvement of these parameters in the MPC and OxyEPC groups. Further study indicated that these hypoxia-related pretreatments were associated with the attenuation of pro-inflammatory cytokines release and the elevation of complex I-supported mitochondrial respiration. SIGNIFICANCE With a dog double-circuit CPB model, we demonstrated that hypoxia is the actual trigger to initiate the cardioprotective effect of IPC in vivo, which was related to reduced cardiac inflammation and ameliorated complex-I supported mitochondrial function.
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Affiliation(s)
- Yan Deng
- Laboratory of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China; West China-Washington Mitochondria and Metabolism Center, West China Hospital of Sichuan University, Sichuan, Chengdu, China
| | - Guo Chen
- Laboratory of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Ronghua Zhou
- Laboratory of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Wu
- Department of Anesthesiology, Chengdu Military General Hospital, Chengdu, China
| | - Zhen You
- Department of Hepato-Bilio-Pancreatology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wei Meng
- Department of Thoracic and Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Linhui Yang
- Laboratory of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yanhua Qiu
- Laboratory of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jin Liu
- Laboratory of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China.
| | - Tao Li
- Laboratory of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China; West China-Washington Mitochondria and Metabolism Center, West China Hospital of Sichuan University, Sichuan, Chengdu, China.
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24
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Shao L, Chen Z, Soutto M, Zhu S, Lu H, Romero-Gallo J, Peek R, Zhang S, El-Rifai W. Helicobacter pylori-induced miR-135b-5p promotes cisplatin resistance in gastric cancer. FASEB J 2018; 33:264-274. [PMID: 29985646 DOI: 10.1096/fj.201701456rr] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Helicobacter pylori infection is a major risk factor for the development of gastric cancer. Aberrant expression of microRNAs is strongly implicated in gastric tumorigenesis; however, their contribution in response to H. pylori infection has not been fully elucidated. In this study, we evaluated the expression of miR-135b-5p and its role in gastric cancer. We describe the overexpression of miR-135b-5p in human gastric cancer tissue samples compared with normal tissue samples. Furthermore, we found that miR-135b-5p is also up-regulated in gastric tumors from the trefoil factor 1-knockout mouse model. Infection with H. pylori induced the expression of miR-135b-5p in the in vitro and in vivo models. miR-135b-5p induction was mediated by NF-κB. Treatment of gastric cancer cells with TNF-α induced miR-135b-5p in a NF-κB-dependent manner. Mechanistically, we found that miR-135b-5p targets Krüppel-like factor 4 (KLF4) and binds to its 3' UTR, leading to reduced KLF4 expression. Functionally, high levels of miR-135b-5p suppress apoptosis and induce cisplatin resistance. Our results uncovered a mechanistic link between H. pylori infection and miR-135b-5p-KLF4, suggesting that targeting miR-135b-5p could be a potential therapeutic approach to circumvent resistance to cisplatin.-Shao, L., Chen, Z., Soutto, M., Zhu, S., Lu, H., Romero-Gallo, J., Peek, R., Zhang, S., El-Rifai, W. Helicobacter pylori-induced miR-135b-5p promotes cisplatin resistance in gastric cancer.
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Affiliation(s)
- Linlin Shao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Department of Veterans Affairs, Miami Healthcare System, Miami, Florida, USA
| | - Zheng Chen
- Department of Veterans Affairs, Miami Healthcare System, Miami, Florida, USA.,Department of Surgery, Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida, USA; and
| | - Mohammed Soutto
- Department of Veterans Affairs, Miami Healthcare System, Miami, Florida, USA
| | - Shoumin Zhu
- Department of Surgery, Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida, USA; and
| | - Heng Lu
- Department of Surgery, Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida, USA; and
| | - Judith Romero-Gallo
- Division of Gastroenterology, Hematology, and Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Richard Peek
- Division of Gastroenterology, Hematology, and Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Shutian Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Wael El-Rifai
- Department of Veterans Affairs, Miami Healthcare System, Miami, Florida, USA.,Department of Surgery, Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida, USA; and
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