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Yeh YT, Lu TJ, Lian GT, Lung MC, Lee YL, Chiang AN, Hsieh SC. Chinese olive (Canarium album L.) fruit regulates glucose utilization by activating AMP-activated protein kinase. FASEB J 2020; 34:7866-7884. [PMID: 32333610 DOI: 10.1096/fj.201902494rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 03/04/2020] [Accepted: 03/26/2020] [Indexed: 11/11/2022]
Abstract
A growing body of evidence demonstrates obesity-induced insulin resistance is associated with the development of metabolic diseases. This study was designed to investigate ethyl acetate fraction of Chinese olive fruit extract (CO-EtOAc)-mediated attenuation of obesity and hyperglycemia in a mouse model. About 60% HFD-fed mice were treated intragastrically with CO-EtOAc for last 6 weeks, and body weight, blood biochemical parameters as well as hepatic inflammation response were investigated. Our results showed that CO-EtOAc treatment significantly reduced the formation of hepatic lipid droplets, body weight gain, blood glucose, and improved serum biochemical parameters in HFD-induced obese and insulin resistant mice. We further explored the molecular mechanism underlying the blood glucose modulating effect of CO-EtOAc using L6 myotubes model. We conclude that CO-EtOAc effectively increases the glycogen content and glucose uptake by stimulating the membrane translocation of glucose transporter 4. In addition, CO-EtOAc depolarizes the mitochondrial membrane and decreases the mitochondrial oxygen consumption, which may result in AMPK activation and the consequent mitochondrial fission. This study shows that CO-EtOAc prevents the development of obesity in mice fed with HFD and is also capable of stimulating glucose uptake. The possible mechanism might be due to the effects of CO-EtOAc on activation of AMPK and promotion of mitochondrial fission.
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Affiliation(s)
- Yu-Te Yeh
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan.,Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, Johns Hopkins University School of Medicine, St. Petersburg, FL, USA
| | - Ting-Jang Lu
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Guan-Ting Lian
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Meng-Chuan Lung
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Yu-Lin Lee
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan
| | - An-Na Chiang
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan
| | - Shu-Chen Hsieh
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
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2
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Dziegala M, Josiak K, Kasztura M, Kobak K, von Haehling S, Banasiak W, Anker SD, Ponikowski P, Jankowska E. Iron deficiency as energetic insult to skeletal muscle in chronic diseases. J Cachexia Sarcopenia Muscle 2018; 9:802-815. [PMID: 30178922 PMCID: PMC6204587 DOI: 10.1002/jcsm.12314] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/05/2018] [Accepted: 04/22/2018] [Indexed: 12/19/2022] Open
Abstract
Specific skeletal myopathy constitutes a common feature of heart failure, chronic obstructive pulmonary disease, and type 2 diabetes mellitus, where it can be characterized by the loss of skeletal muscle oxidative capacity. There is evidence from in vitro and animal studies that iron deficiency affects skeletal muscle functioning mainly in the context of its energetics by limiting oxidative metabolism in favour of glycolysis and by alterations in both carbohydrate and fat catabolic processing. In this review, we depict the possible molecular pathomechanisms of skeletal muscle energetic impairment and postulate iron deficiency as an important factor causally linked to loss of muscle oxidative capacity that contributes to skeletal myopathy seen in patients with heart failure, chronic obstructive pulmonary disease, and type 2 diabetes mellitus.
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Affiliation(s)
- Magdalena Dziegala
- Laboratory for Applied Research on Cardiovascular System, Department of Heart DiseasesWroclaw Medical University50‐981WroclawPoland
| | - Krystian Josiak
- Centre for Heart DiseasesMilitary Hospital50‐981WroclawPoland
- Department of Heart DiseasesWroclaw Medical University50‐367WroclawPoland
| | - Monika Kasztura
- Laboratory for Applied Research on Cardiovascular System, Department of Heart DiseasesWroclaw Medical University50‐981WroclawPoland
| | - Kamil Kobak
- Laboratory for Applied Research on Cardiovascular System, Department of Heart DiseasesWroclaw Medical University50‐981WroclawPoland
| | - Stephan von Haehling
- Department of Cardiology and PneumologyUniversity Medicine Göttingen (UMG)37075GöttingenGermany
| | | | - Stefan D. Anker
- Department of Cardiology and PneumologyUniversity Medicine Göttingen (UMG)37075GöttingenGermany
- Division of Cardiology and MetabolismCharité Universitätsmedizin10117BerlinGermany
- Department of Cardiology (CVK)Charité Universitätsmedizin10117BerlinGermany
- Berlin‐Brandenburg Center for Regenerative Therapies (BCRT)Charité Universitätsmedizin10117BerlinGermany
- German Centre for Cardiovascular Research (DZHK) partner site BerlinCharité Universitätsmedizin10117BerlinGermany
| | - Piotr Ponikowski
- Centre for Heart DiseasesMilitary Hospital50‐981WroclawPoland
- Department of Heart DiseasesWroclaw Medical University50‐367WroclawPoland
| | - Ewa Jankowska
- Laboratory for Applied Research on Cardiovascular System, Department of Heart DiseasesWroclaw Medical University50‐981WroclawPoland
- Centre for Heart DiseasesMilitary Hospital50‐981WroclawPoland
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3
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Stugiewicz M, Tkaczyszyn M, Kasztura M, Banasiak W, Ponikowski P, Jankowska EA. The influence of iron deficiency on the functioning of skeletal muscles: experimental evidence and clinical implications. Eur J Heart Fail 2016; 18:762-73. [PMID: 26800032 DOI: 10.1002/ejhf.467] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/16/2015] [Accepted: 10/22/2015] [Indexed: 12/26/2022] Open
Abstract
Skeletal and respiratory myopathy not only constitutes an important pathophysiological feature of heart failure and chronic obstructive pulmonary disease, but also contributes to debilitating symptomatology and predicts worse outcomes in these patients. Accumulated evidence from laboratory experiments, animal models, and interventional studies in sports medicine suggests that undisturbed systemic iron homeostasis significantly contributes to the effective functioning of skeletal muscles. In this review, we discuss the role of iron status for the functioning of skeletal muscle tissue, and highlight iron deficiency as an emerging therapeutic target in chronic diseases accompanied by a marked muscle dysfunction.
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Affiliation(s)
- Magdalena Stugiewicz
- Students' Scientific Association, Laboratory for Applied Research on Cardiovascular System, Department of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland
| | - Michał Tkaczyszyn
- Laboratory for Applied Research on Cardiovascular System, Department of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland.,Cardiology Department, Centre for Heart Diseases, Military Hospital, Wroclaw, Poland
| | - Monika Kasztura
- Laboratory for Applied Research on Cardiovascular System, Department of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland
| | - Waldemar Banasiak
- Cardiology Department, Centre for Heart Diseases, Military Hospital, Wroclaw, Poland
| | - Piotr Ponikowski
- Cardiology Department, Centre for Heart Diseases, Military Hospital, Wroclaw, Poland.,Department of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland
| | - Ewa A Jankowska
- Laboratory for Applied Research on Cardiovascular System, Department of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland.,Cardiology Department, Centre for Heart Diseases, Military Hospital, Wroclaw, Poland
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4
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Moreno M, Ortega F, Xifra G, Ricart W, Fernández-Real JM, Moreno-Navarrete JM. Cytosolic aconitase activity sustains adipogenic capacity of adipose tissue connecting iron metabolism and adipogenesis. FASEB J 2014; 29:1529-39. [PMID: 25550467 DOI: 10.1096/fj.14-258996] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 12/09/2014] [Indexed: 12/22/2022]
Abstract
To gain insight into the regulation of intracellular iron homeostasis in adipose tissue, we investigated the role of iron regulatory protein 1/cytosolic aconitase 1 (ACO1). ACO1 gene expression and activity increased in parallel to expression of adipogenic genes during differentiation of both murine 3T3-L1 cells and human preadipocytes. Lentiviral knockdown (KD) of Aco1 in 3T3-L1 preadipocytes led to diminished cytosolic aconitase activity and isocitrate dehydrogenase 1 (NADP(+)), soluble (Idh1) mRNA levels, decreased intracellular NADPH:NADP ratio, and impaired adipogenesis during adipocyte differentiation. In addition, Aco1 KD in fully differentiated 3T3-L1 adipocytes decreased lipogenic, Idh1, Adipoq, and Glut4 gene expression. A bidirectional cross-talk was found between intracellular iron levels and ACO1 gene expression and protein activity. Although iron in excess, known to increase reactive oxygen species production, and iron depletion both resulted in decreased ACO1 mRNA levels and activity, Aco1 KD led to reduced gene expression of transferrin receptor (Tfrc) and transferrin, disrupting intracellular iron uptake. In agreement with these findings, in 2 human independent cohorts (n = 85 and n = 38), ACO1 gene expression was positively associated with adipogenic markers in subcutaneous and visceral adipose tissue. ACO1 gene expression was also positively associated with the gene expression of TFRC while negatively linked to ferroportin (solute carrier family 40 (iron-regulated transporter), member 1) mRNA levels. Altogether, these results suggest that ACO1 activity is required for the normal adipogenic capacity of adipose tissue by connecting iron, energy metabolism, and adipogenesis.
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Affiliation(s)
- María Moreno
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
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5
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Wang H, Duan X, Liu J, Zhao H, Liu Y, Chang Y. Nitric Oxide contributes to the regulation of iron metabolism in skeletal muscle in vivo and in vitro. Mol Cell Biochem 2010; 342:87-94. [PMID: 20411304 DOI: 10.1007/s11010-010-0471-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Accepted: 04/12/2010] [Indexed: 12/13/2022]
Abstract
Nitric Oxide (NO) plays an important role in iron redistribution during exercise, while its molecular regulatory mechanism is still not clear. Our present studies were to investigate the effects of NO on iron metabolism and to elucidate the regulatory mechanism of iron transport in skeletal muscle both in vivo and in vitro. One group of male Wistar rats (300 +/- 10 g) were subjected to an exercise of 30 min on a treadmill for 5 weeks (exercise group, EG, 6 rats) and the other one was placed on the treadmill without running (control group, CG, 6 rats). The cultured L6 rat skeletal muscle cells were treated with either 0.5 mM SNAP (NO donor) or not for 24 h, and their iron release and intake amount were examined by measuring radiolabelled (55)Fe. The results showed: (1) The NO content (CG, 1.09 +/- 0.18 micromol/g vs. EG, 1.49 +/- 0.17 micromol/g) and non-heme iron in gastrocnemius (CG, 118.35 +/- 11.41 microg/g vs. EG, 216.65 +/- 11.10 microg/g) of EG were significantly increased compared with CG. (2) The expression of DMT1 (IRE) and TfR1 of EG was increased. (3) The iron intake was increased in L6 cells treated with SNAP (P < 0.01). (4) Western blot results showed the protein level of both TfR1 and DMT1 (IRE) in SNAP cells were up-regulated, while the expression of FPN1 was down-regulated (P < 0.05). The data suggested that the induced elevation of NO level by exercise lead to the up-regulation of both TfR1 and DMT1 (IRE), which in turn increasing the iron absorption in skeletal muscle.
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Affiliation(s)
- Haitao Wang
- College of Physical Education, Hebei Normal University, Shijiazhuang, Hebei Province, People's Republic of China
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6
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Matasova LV, Popova TN. Aconitate hydratase of mammals under oxidative stress. BIOCHEMISTRY. BIOKHIMIIA 2008; 73:957-64. [PMID: 18976211 PMCID: PMC7087844 DOI: 10.1134/s0006297908090010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/28/2007] [Revised: 12/20/2007] [Indexed: 12/14/2022]
Abstract
Data on the structure, functions, regulation of activity, and expression of cytosolic and mitochondrial aconitate hydratase isoenzymes of mammals are reviewed. The role of aconitate hydratase and structurally similar iron-regulatory protein in maintenance of homeostasis of cell iron is described. Information on modifications of the aconitate hydratase molecule and changes in expression under oxidative stress is generalized. The role of aconitate hydratase in the pathogenesis of some diseases is considered.
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Affiliation(s)
- L V Matasova
- Voronezh State University, Voronezh, 394006, Russia.
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7
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Burniston JG. Changes in the rat skeletal muscle proteome induced by moderate-intensity endurance exercise. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2008; 1784:1077-86. [DOI: 10.1016/j.bbapap.2008.04.007] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2008] [Revised: 03/25/2008] [Accepted: 04/09/2008] [Indexed: 11/16/2022]
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8
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Canal F, Fosset C, Chauveau MJ, Drapier JC, Bouton C. Regulation of the cysteine desulfurase Nfs1 and the scaffold protein IscU in macrophages stimulated with interferon-γ and lipopolysaccharide. Arch Biochem Biophys 2007; 465:282-92. [PMID: 17603005 DOI: 10.1016/j.abb.2007.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2007] [Revised: 06/04/2007] [Accepted: 06/06/2007] [Indexed: 02/03/2023]
Abstract
Biogenesis of iron-sulfur (Fe-S) clusters in mammals involves a complex mitochondrial machinery that provides inorganic sulfide and iron for their assembly and insertion into apo-proteins. Mechanisms of Fe-S cluster assembly are just being unraveled, and regulation of the genes of this machinery remains unknown. In this study, we report that expression of two essential components of the Fe-S machinery, the cysteine desulfurase Nfs1 and its scaffold protein partner IscU, is down-regulated at both mRNA and protein levels when murine macrophages are physiologically stimulated with IFN-gamma and LPS. Regulation did not rely on cluster disassembly or NO production because exposure of cells to exogenous sources of NO did not alter Nfs1 expression, while it converted cytosolic Fe-S aconitase into its apo-form and because macrophages from NOS2 deficient mice displayed Nfs1 down-regulation. While IFN-gamma alone induced Nfs1 protein instability, LPS triggered a delayed decline of Nfs1, rather involving transcriptional events or mRNA instability. Also, the expression of IscU was down-regulated in IFN-gamma- and/or LPS-stimulated macrophages independently of NO, pointing to a general mechanism for marshalling the regulation of the Fe-S cluster assembly machinery in macrophages exposed to inflammatory stimuli.
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Affiliation(s)
- Frédéric Canal
- Institut de Chimie des Substances Naturelles, CNRS, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
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Jurkowska H, Wróbel M. N-acetyl-L-cysteine as a source of sulfane sulfur in astrocytoma and astrocyte cultures: correlations with cell proliferation. Amino Acids 2007; 34:231-7. [PMID: 17450321 DOI: 10.1007/s00726-007-0471-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2006] [Accepted: 10/22/2006] [Indexed: 11/28/2022]
Abstract
N-acetyl-L-cysteine (NAC), a precursor of L-cysteine, not only elevates the level of glutathione in both astrocytoma and astrocyte cultures, but also affects the cellular level of sulfane sulfur. Astrocytoma cells were investigated using the stable U373 human cell line. In the U373 cells, N-acetyl-L-cysteine, depending on the concentration in the culture medium and culture duration, either elevated or diminished the level of sulfane sulfur, and this was respectively accompanied by decreased or increased cellular proliferation. In murine astrocytes, in turn, NAC was capable of lowering the level of sulfane sulfur and in this way decreased cellular proliferation. It seems that normal (astrocyte) and transformed (astrocytoma) cells differed in their reaction to NAC in the culture medium. The effect of N-acetyl-L-cysteine on astrocytoma cells was advantageous in that it inhibited their proliferation through the elevation of the level of sulfane sulfur.
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Affiliation(s)
- H Jurkowska
- Chair of Medical Biochemistry, Jagiellonian University Medical College, Kraków, Poland
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Tong WH, Rouault TA. Metabolic regulation of citrate and iron by aconitases: role of iron–sulfur cluster biogenesis. Biometals 2007; 20:549-64. [PMID: 17205209 DOI: 10.1007/s10534-006-9047-6] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2006] [Accepted: 11/28/2006] [Indexed: 12/21/2022]
Abstract
Iron and citrate are essential for the metabolism of most organisms, and regulation of iron and citrate biology at both the cellular and systemic levels is critical for normal physiology and survival. Mitochondrial and cytosolic aconitases catalyze the interconversion of citrate and isocitrate, and aconitase activities are affected by iron levels, oxidative stress and by the status of the Fe-S cluster biogenesis apparatus. Assembly and disassembly of Fe-S clusters is a key process not only in regulating the enzymatic activity of mitochondrial aconitase in the citric acid cycle, but also in controlling the iron sensing and RNA binding activities of cytosolic aconitase (also known as iron regulatory protein IRP1). This review discusses the central role of aconitases in intermediary metabolism and explores how iron homeostasis and Fe-S cluster biogenesis regulate the Fe-S cluster switch and modulate intracellular citrate flux.
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Affiliation(s)
- Wing-Hang Tong
- Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, NIH Bldg 18, Rm 101, Bethesda, MD 20892, USA
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