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You Z, Wang J, Li F, Hei W, Li M, Guo X, Gao P, Cao G, Cai C, Li B. Uncoupling Protein 3 Promotes the Myogenic Differentiation of Type IIb Myotubes in C2C12 Cells. Genes (Basel) 2023; 14:2049. [PMID: 38002992 PMCID: PMC10671304 DOI: 10.3390/genes14112049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 10/30/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023] Open
Abstract
Uncoupling protein 3 (Ucp3) is an important transporter within mitochondria and is mainly expressed in skeletal muscle, brown adipose tissue and the myocardium. However, the effects of Ucp3 on myogenic differentiation are still unclear. This study evaluated the effects of Ucp3 on myogenic differentiation, myofiber type and energy metabolism in C2C12 cells. Gain- and loss-of-function studies revealed that Ucp3 could increase the number of myotubes and promote the myogenic differentiation of C2C12 cells. Furthermore, Ucp3 promoted the expression of the type IIb myofiber marker gene myosin heavy chain 4 (Myh4) and decreased the expression of the type I myofiber marker gene myosin heavy chain 7 (Myh7). In addition, energy metabolism related to the expression of PPARG coactivator 1 alpha (Pgc1-α), ATP synthase, H+ transportation, mitochondrial F1 complex, alpha subunit 1 (Atp5a1), lactate dehydrogenase A (Ldha) and lactate dehydrogenase B (Ldhb) increased with Ucp3 overexpression. Ucp3 could promote the myogenic differentiation of type IIb myotubes and accelerate energy metabolism in C2C12 cells. This study can provide the theoretical basis for understanding the role of Ucp3 in energy metabolism.
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Affiliation(s)
- Ziwei You
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
| | - Jieyu Wang
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
| | - Faliang Li
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
| | - Wei Hei
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
| | - Meng Li
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
| | - Xiaohong Guo
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
| | - Pengfei Gao
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
| | - Guoqing Cao
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
| | - Chunbo Cai
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Bugao Li
- College of Animal Science, Shanxi Agricultural University, 1 Mingxian Nanlu, Jinzhong 030801, China; (Z.Y.); (J.W.); (F.L.); (W.H.); (M.L.); (X.G.); (P.G.); (G.C.)
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Huesca-Gómez C, Torres-Paz YE, Fuentevilla-Álvarez G, González-Moyotl NJ, Ramírez-Marroquín ES, Vásquez-Jiménez X, Sainz-Escarrega V, Soto ME, Samano R, Gamboa R. Expressions of mRNA and encoded proteins of mitochondrial uncoupling protein genes ( UCP1, UCP2, and UCP3) in epicardial and mediastinal adipose tissue and associations with coronary artery disease. Arch Endocrinol Metab 2023; 67:214-223. [PMID: 36651711 PMCID: PMC10689038 DOI: 10.20945/2359-3997000000582] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 08/03/2022] [Indexed: 01/19/2023]
Abstract
Objective To evaluate the expression of UCP1, UCP2, and UCP3 mRNA and encoded proteins in epicardial and mediastinal adipose tissues in patients with coronary artery disease (CAD). Subjects and methods We studied 60 patients with CAD and 106 patients undergoing valve replacement surgery (controls). Expression levels of UCP1, UCP2, and UCP3 mRNA and encoded proteins were measured by quantitative real-time PCR and Western blot analysis, respectively. Results : We found increased UCP1, UCP2, and UCP3 mRNA levels in the epicardial adipose tissue in the CAD versus the control group, and higher UCP1 and UCP3 mRNA expression in the epicardial compared with the mediastinal tissue in the CAD group. There was also increased expression of UCP1 protein in the epicardial tissue and UCP2 protein in the mediastinum tissue in patients with CAD. Finally, UCP1 expression was associated with levels of fasting plasma glucose, and UCP3 expression was associated with levels of high-density lipoprotein cholesterol and low-density cholesterol in the epicardial tissue. Conclusion Our study supports the hypothesis that higher mRNA expression by UCP genes in the epicardial adipose tissue could be a protective mechanism against the production of reactive oxygen species and may guard the myocardium against damage. Thus, UCP levels are essential to maintain the adaptive phase of cardiac injury in the presence of metabolic disorders.
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Affiliation(s)
- Claudia Huesca-Gómez
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Fisiología, Ciudad de México, México
| | - Yazmín Estela Torres-Paz
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Fisiología, Ciudad de México, México
| | | | | | | | - Xicótencatl Vásquez-Jiménez
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Cirugía Cardiotorácica, Ciudad de México, México
| | - Víctor Sainz-Escarrega
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Cirugía Cardiotorácica, Ciudad de México, México
| | - María Elena Soto
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Inmunología, Ciudad de México, México
| | - Reyna Samano
- Instituto Nacional de Perinatología, Coordinación de Nutrición y Bioprogramación, Ciudad de México, México
| | - Ricardo Gamboa
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Fisiología, Ciudad de México, México
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Fortes JS, Pinto RM, de Souza RF, Godoy FR, da Cruz RS, de M e Silva D, Filho HPL, da Cruz AD, Minasi LB. The influence of six polymorphisms of uncoupling protein 3 (UCP3) gene and childhood obesity: a case-control study. BMC Pediatr 2023; 23:87. [PMID: 36810017 PMCID: PMC9942342 DOI: 10.1186/s12887-023-03905-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND Obesity is defined as a multifactorial disease, marked by excessive accumulation of body fat, responsible for compromising the individual's health over the years. The energy balance is essential for the proper functioning of the body, as the individual needs to earn and spend energy in a compensatory way. Mitochondrial Uncoupling Proteins (UCP) help in energy expenditure through heat release and genetic polymorphisms could be responsible for reducing energy consumption to release heat and consequently generate an excessive accumulation of fat in the body. Thus, this study aimed to investigate the potential association between six UCP3 polymorphisms, that have not yet been represented in ClinVar®, and pediatric obesity susceptibility. METHODS A case-control study was conducted with 225 children from Central Brazil. The groups were subdivided into obese (123) and eutrophic (102) individuals. The polymorphisms rs15763, rs1685354, rs1800849, rs11235972, rs647126, and rs3781907 were determined by real-time Polymerase Chain Reaction (qPCR). RESULTS Biochemical and anthropometric evaluation of obese group showed higher levels of triglycerides, insulin resistance, and LDL-C and low level of HDL-C. Insulin resistance, age, sex, HDL-C, fasting glucose, triglyceride levels, and parents' BMI explained up to 50% of body mass deposition in the studied population. Additionally, obese mothers contribute 2 × more to the Z-BMI of their children than the fathers. The SNP rs647126 contributed to 20% to the risk of obesity in children and the SNP rs3781907 contribute to 10%. Mutant alleles of UCP3 increase the risk for triglycerides, total cholesterol, and HDL-C levels. The polymorphism rs3781907 is the only one that could not be a biomarker for obesity as the risk allele seem to be protective gains the increase in Z-BMI in our pediatric population. Haplotype analysis demonstrated two SNP blocks (rs15763, rs647126, and rs1685534) and (rs11235972 and rs1800849) that showed linkage disequilibrium, with LOD 76.3% and D' = 0.96 and LOD 57.4% and D' = 0.97, respectively. CONCLUSIONS The causality between UCP3 polymorphism and obesity were not detected. On the other hand, the studied polymorphism contributes to Z-BMI, HOMA-IR, triglycerides, total cholesterol, and HDL-C levels. Haplotypes are concordant with the obese phenotype and contribute minimally to the risk of obesity.
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Affiliation(s)
- Jakeline S. Fortes
- Replicon Research Group, Genetics Graduate Program, School of Medical and Life Sciences, Pontifical Catholic University of Goiás, Rua 235, N. 40, Setor Leste Universitário, Goiânia, GO 74605-050 Brazil
- Genetics and Molecular Biology Graduate Program, Federal University of Goiás, Campus Samambaia, Goiânia, GO 74690-900 Brazil
| | - Renata M. Pinto
- Pediatrics Department, Federal University of Goiás, Câmpus Colemar Natal E Silva (Câmpus I), Rua 235, Setor Leste Universitário, Goiânia, GO Brazil
| | - Raissa F. de Souza
- Replicon Research Group, Genetics Graduate Program, School of Medical and Life Sciences, Pontifical Catholic University of Goiás, Rua 235, N. 40, Setor Leste Universitário, Goiânia, GO 74605-050 Brazil
| | - Fernanda R. Godoy
- Replicon Research Group, Genetics Graduate Program, School of Medical and Life Sciences, Pontifical Catholic University of Goiás, Rua 235, N. 40, Setor Leste Universitário, Goiânia, GO 74605-050 Brazil
- Genetics and Molecular Biology Graduate Program, Federal University of Goiás, Campus Samambaia, Goiânia, GO 74690-900 Brazil
| | - Raphael S. da Cruz
- Replicon Research Group, Genetics Graduate Program, School of Medical and Life Sciences, Pontifical Catholic University of Goiás, Rua 235, N. 40, Setor Leste Universitário, Goiânia, GO 74605-050 Brazil
- Physiotherapy Undergraduate Course, Centro Universitário de Goiânia – UNICEUG, Goiânia, GO Brazil
| | - Daniela de M e Silva
- Genetics and Molecular Biology Graduate Program, Federal University of Goiás, Campus Samambaia, Goiânia, GO 74690-900 Brazil
| | | | - Aparecido D. da Cruz
- Replicon Research Group, Genetics Graduate Program, School of Medical and Life Sciences, Pontifical Catholic University of Goiás, Rua 235, N. 40, Setor Leste Universitário, Goiânia, GO 74605-050 Brazil
- Genetics and Molecular Biology Graduate Program, Federal University of Goiás, Campus Samambaia, Goiânia, GO 74690-900 Brazil
- Human Cytogenetics and Molecular Genetics Laboratory/CRER, State Health Secretary of Goiás, Goiânia, GO Brazil
| | - Lysa B. Minasi
- Replicon Research Group, Genetics Graduate Program, School of Medical and Life Sciences, Pontifical Catholic University of Goiás, Rua 235, N. 40, Setor Leste Universitário, Goiânia, GO 74605-050 Brazil
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Alrefaie Z, Awad H, Alsolami K, Hamed EA. Uncoupling proteins: are they involved in vitamin D3 protective effect against high-fat diet-induced cardiac apoptosis in rats? Arch Physiol Biochem 2022; 128:438-446. [PMID: 31794287 DOI: 10.1080/13813455.2019.1690526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This study aimed to assess the impact of high-fat diet (HFD) and vitamin D3 supplementation on cardiac apoptosis, inflammation, oxidative stress, and cardiac uncoupling proteins (UCPs) 2&3 expression. Forty rats were fed either (45%) or (10%) fat diet with or without vitamin D3 (500 U/kg/day) for 6 months, then cardiac tissue expression of Bax, Bcl2, Fas, Fas-L (markers for apoptotic pathways), TNF-α, MDA7, GPX1 (inflammatory and oxidative markers) and UCP 2&3 were assessed. Results revealed the enhancement of intrinsic and extrinsic cardiomyocyte apoptosis cascades and increased inflammatory and oxidative burdens on the heart in HFD rats. Downregulation of UCP2 and upregulation of UCP3 gene expression at 6 months. After vitamin D3 supplementation with HFD, cardiac apoptotic, inflammatory and oxidative markers were mitigated and expression of UCP3 was downregulated and UCP2 was upregulated. This work highlights the novel cardioprotective effect of vitamin D3 in the experimental model of HFD feeding through the downregulation of UCP3.
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Affiliation(s)
- Zienab Alrefaie
- Physiology Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Physiology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hossam Awad
- Physiology Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Khadeejah Alsolami
- Physiology Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Enas A Hamed
- Physiology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
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O’Connor EB, Muñoz-Wolf N, Leon G, Lavelle EC, Mills KHG, Walsh PT, Porter RK. UCP3 reciprocally controls CD4+ Th17 and Treg cell differentiation. PLoS One 2020; 15:e0239713. [PMID: 33211703 PMCID: PMC7676685 DOI: 10.1371/journal.pone.0239713] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 09/14/2020] [Indexed: 11/20/2022] Open
Abstract
Uncoupling proteins (UCPs) are members of the mitochondrial anion carrier superfamily that can mediate the transfer of protons into the mitochondrial matrix from the intermembrane space. We have previously reported UCP3 expression in thymocytes, mitochondria of total splenocytes and splenic lymphocytes. Here, we demonstrate that Ucp3 is expressed in peripheral naive CD4+ T cells at the mRNA level before being markedly downregulated following activation. Non-polarized, activated T cells (Th0 cells) from Ucp3-/- mice produced significantly more IL-2, had increased expression of CD25 and CD69 and were more proliferative than Ucp3+/+ Th0 cells. The altered IL-2 expression observed between T cells from Ucp3+/+ and Ucp3-/- mice may be a factor in determining differentiation into Th17 or induced regulatory (iTreg) cells. When compared to Ucp3+/+, CD4+ T cells from Ucp3-/- mice had increased FoxP3 expression under iTreg conditions. Conversely, Ucp3-/- CD4+ T cells produced a significantly lower concentration of IL-17A under Th17 cell-inducing conditions in vitro. These effects were mirrored in antigen-specific T cells from mice immunized with KLH and CT. Interestingly, the altered responses of Ucp3-/- T cells were partially reversed upon neutralisation of IL-2. Together, these data indicate that UCP3 acts to restrict the activation of naive T cells, acting as a rheostat to dampen signals following TCR and CD28 co-receptor ligation, thereby limiting early activation responses. The observation that Ucp3 ablation alters the Th17:Treg cell balance in vivo as well as in vitro suggests that UCP3 is a potential target for the treatment of Th17 cell-mediated autoimmune diseases.
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Affiliation(s)
- Emma B. O’Connor
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Natalia Muñoz-Wolf
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Gemma Leon
- Department of Clinical Medicine, School of Medicine, Trinity College Dublin, Dublin 2, Ireland and National Children’s Research Centre, Our Lady’s Children’s Hospital, Crumlin, Dublin, Ireland
| | - Ed C. Lavelle
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Kingston H. G. Mills
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Patrick T. Walsh
- Department of Clinical Medicine, School of Medicine, Trinity College Dublin, Dublin 2, Ireland and National Children’s Research Centre, Our Lady’s Children’s Hospital, Crumlin, Dublin, Ireland
| | - Richard K. Porter
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
- * E-mail:
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Watamoto Y, Futawaka K, Hayashi M, Matsushita M, Mitsutani M, Murakami K, Song Z, Koyama R, Fukuda Y, Nushida A, Nezu S, Kuwahara A, Kataoka K, Tagami T, Moriyama K. Insulin-like growth factor-1 directly mediates expression of mitochondrial uncoupling protein 3 via forkhead box O4. Growth Horm IGF Res 2019; 46-47:24-35. [PMID: 31158782 DOI: 10.1016/j.ghir.2019.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/26/2019] [Accepted: 05/21/2019] [Indexed: 01/01/2023]
Abstract
OBJECTIVE The objective of our study was to examine the direct action of insulin-like growth factor-1(IGF-1) signaling on energy homeostasis in myocytes. DESIGN We studied the IGF-1 stimulation of mitochondrial uncoupling protein 3 (UCP3) expression in the HEK 293 derived cell line TSA201, murine C2C12 skeletal muscle myoblasts, and rat L6 skeletal myoblasts. We also investigated the direct effect of IGF-1 on the Insulin/IGF-1 receptor (IGF-1R)/phosphatidylinositol 3 (PI3)-Akt/forkhead box O4 (FOXO4) pathway using a combination of a reporter assay, semi-quantitative polymerase chain reaction, western blotting, and animal experiments. RESULTS We demonstrated that IGF-1 regulates UCP3 expression via phosphorylation of FOXO4, which is a downstream signal transducer of IGF-1. UCP3 expression increased with activated FOXO4 in a dose-dependent manner. We also examined the functional FOXO4 binding site consensus sequences and identified it as the -1922 bp site in the UCP3 promoter region. UCP3 was also found to be concomitantly expressed with IGF-1 during differentiation of C2C12 myoblasts. Our animal experiments showed that high fat diet induced IGF-1 levels which likely influenced UCP3 expression in the skeletal muscle. CONCLUSION Our findings demonstrate that that IGF-1 directly stimulates UCP3 expression via the IGF-1/IGF-1R/PI3-Akt/FOXO4 pathway.
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Affiliation(s)
- Yukiko Watamoto
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Kumi Futawaka
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Misa Hayashi
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Midori Matsushita
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Mana Mitsutani
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Kana Murakami
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Zilin Song
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Rie Koyama
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Yuki Fukuda
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Ayaka Nushida
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Syoko Nezu
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Akiko Kuwahara
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Kazusaburo Kataoka
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Tetsuya Tagami
- Clinical Research Institute for Endocrine and Metabolic Diseases, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan
| | - Kenji Moriyama
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan; Clinical Research Institute for Endocrine and Metabolic Diseases, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan.
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Hayashi M, Futawaka K, Matsushita M, Koyama R, Fun Y, Fukuda Y, Nushida A, Nezu S, Tagami T, Moriyama K. GH directly stimulates UCP3 expression. Growth Horm IGF Res 2018; 40:44-54. [PMID: 29398371 DOI: 10.1016/j.ghir.2018.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 12/27/2017] [Accepted: 01/18/2018] [Indexed: 01/23/2023]
Abstract
OBJECTIVE We evaluated the direct action of GH signaling in energy homeostasis in myocytes. DESIGN We investigated the GH-induced expression of UCP3 in human embryonic kidney 293 cells, human H-EMC-SS chondrosarcoma cells, murine C2C12 skeletal muscle myoblasts, and rat L6 skeletal muscle cells, as well as its direct effect on the GHR/JAK/STAT5 pathway using a combination of a reporter assay, real-time quantitative polymerase chain reaction, and western blotting. RESULTS We demonstrated that the regulation of energy metabolism by GH involves UCP3 via activated STAT5, a signal transducer downstream of GH. UCP3 expression increased with STAT5 in a dose-dependent manner and was higher than that of UCP2. We confirmed the functional STAT5 binding site consensus sequences at -861 and -507 bp in the UCP3 promoter region. CONCLUSION The results suggest that GH stimulates UCP3 directly and that UCP2 and that UCP3 participate in the signal transduction pathway that functions downstream of the GHR/JAK/STAT.
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Affiliation(s)
- Misa Hayashi
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Kumi Futawaka
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Midori Matsushita
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Rie Koyama
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Yue Fun
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Yuki Fukuda
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Ayaka Nushida
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Syoko Nezu
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan
| | - Tetsuya Tagami
- Clinical Research Institute for Endocrine and Metabolic Diseases, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan
| | - Kenji Moriyama
- Medicine & Clinical Science, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo 663-8179, Japan; Clinical Research Institute for Endocrine and Metabolic Diseases, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan.
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Macher G, Koehler M, Rupprecht A, Kreiter J, Hinterdorfer P, Pohl EE. Inhibition of mitochondrial UCP1 and UCP3 by purine nucleotides and phosphate. Biochim Biophys Acta Biomembr 2018; 1860:664-672. [PMID: 29212043 PMCID: PMC6118327 DOI: 10.1016/j.bbamem.2017.12.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 11/04/2017] [Accepted: 12/01/2017] [Indexed: 11/26/2022]
Abstract
Mitochondrial membrane uncoupling protein 3 (UCP3) is not only expressed in skeletal muscle and heart, but also in brown adipose tissue (BAT) alongside UCP1, which facilitates a proton leak to support non-shivering thermogenesis. In contrast to UCP1, the transport function and molecular mechanism of UCP3 regulation are poorly investigated, although it is generally agreed upon that UCP3, analogous to UCP1, transports protons, is activated by free fatty acids (FFAs) and is inhibited by purine nucleotides (PNs). Because the presence of two similar uncoupling proteins in BAT is surprising, we hypothesized that UCP1 and UCP3 are differently regulated, which may lead to differences in their functions. By combining atomic force microscopy and electrophysiological measurements of recombinant proteins reconstituted in planar bilayer membranes, we compared the level of protein activity with the bond lifetimes between UCPs and PNs. Our data revealed that, in contrast to UCP1, UCP3 can be fully inhibited by all PNs and IC50 increases with a decrease in PN-phosphorylation. Experiments with mutant proteins demonstrated that the conserved arginines in the PN-binding pocket are involved in the inhibition of UCP1 and UCP3 to different extents. Fatty acids compete with all PNs bound to UCP1, but only with ATP bound to UCP3. We identified phosphate as a novel inhibitor of UCP3 and UCP1, which acts independently of PNs. The differences in molecular mechanisms of the inhibition between the highly homologous transporters UCP1 and UCP3 indicate that UCP3 has adapted to fulfill a different role and possibly another transport function in BAT.
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Affiliation(s)
- Gabriel Macher
- Institute of Physiology, Pathophysiology and Biophysics, University of Veterinary Medicine, Vienna, Austria
| | - Melanie Koehler
- Institute of Biophysics, Johannes Kepler University, Linz, Austria
| | - Anne Rupprecht
- Institute of Physiology, Pathophysiology and Biophysics, University of Veterinary Medicine, Vienna, Austria
| | - Jürgen Kreiter
- Institute of Physiology, Pathophysiology and Biophysics, University of Veterinary Medicine, Vienna, Austria
| | | | - Elena E Pohl
- Institute of Physiology, Pathophysiology and Biophysics, University of Veterinary Medicine, Vienna, Austria.
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Tekin S, Erden Y, Sandal S, Etem Onalan E, Ozyalin F, Ozen H, Yilmaz B. Effects of apelin on reproductive functions: relationship with feeding behavior and energy metabolism. Arch Physiol Biochem 2017; 123:9-15. [PMID: 27494693 DOI: 10.1080/13813455.2016.1211709] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Apelin is an adipose tissue derived peptidergic hormone. In this study, 40 male Sprague-Dawley rats were used (four groups; n = 10). Apelin-13 at three different dosages (1, 5 and 50 μg/kg) was given intraperitoneally while the control group received vehicle the same route for a period of 14 days. In results, apelin-13 caused significant decreases in serum testosterone, luteinizing hormone and follicle-stimulating hormone levels (p < 0.05). Administration of apelin-13 significantly increased body weights, food intake, serum low-density lipoprotein and total cholesterol levels (p < 0.05), but caused significant decreases in high-density lipoprotein levels (p < 0.05). Serum glucose and triglyceride levels were not significantly altered by apelin-13 administration. Significant decreases in both uncoupling protein (UCP)-1 levels in the white and brown adipose tissues and UCP-3 levels in the biceps muscle (p < 0.05) were noted. The findings of the study suggest that apelin-13 may not only lead to obesity by increasing body weight but also cause infertility by suppressing reproductive hormones.
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MESH Headings
- Adipose Tissue, Brown/drug effects
- Adipose Tissue, Brown/metabolism
- Adipose Tissue, White/drug effects
- Adipose Tissue, White/metabolism
- Animals
- Dose-Response Relationship, Drug
- Energy Intake/drug effects
- Energy Metabolism/drug effects
- Feeding Behavior/drug effects
- Gonadotropins, Pituitary/antagonists & inhibitors
- Gonadotropins, Pituitary/blood
- Hypercholesterolemia/blood
- Hypercholesterolemia/chemically induced
- Hypercholesterolemia/metabolism
- Infertility, Male/blood
- Infertility, Male/chemically induced
- Infertility, Male/metabolism
- Injections, Intraperitoneal
- Intercellular Signaling Peptides and Proteins/toxicity
- Male
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Overweight/blood
- Overweight/chemically induced
- Overweight/metabolism
- Random Allocation
- Rats, Sprague-Dawley
- Testosterone/antagonists & inhibitors
- Testosterone/blood
- Toxicity Tests, Chronic
- Uncoupling Protein 1/antagonists & inhibitors
- Uncoupling Protein 1/genetics
- Uncoupling Protein 1/metabolism
- Uncoupling Protein 3/antagonists & inhibitors
- Uncoupling Protein 3/genetics
- Uncoupling Protein 3/metabolism
- Weight Gain/drug effects
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Affiliation(s)
- Suat Tekin
- a Department of Physiology , Faculty of Medicine, Inonu University , Malatya , Turkey
| | - Yavuz Erden
- b Department of Molecular Biology and Genetics , Faculty of Science, Bartin University , Bartin , Turkey
| | - Suleyman Sandal
- a Department of Physiology , Faculty of Medicine, Inonu University , Malatya , Turkey
| | - Ebru Etem Onalan
- c Department of Medical Biology , Faculty of Medicine, Firat University , Elazig , Turkey
| | - Fatma Ozyalin
- d Department of Biochemistry , Faculty of Medicine, Inonu University , Malatya , Turkey
| | - Hasan Ozen
- e Department of Pathology , Faculty of Veterinary Medicine, Kafkas University , Kars , Turkey
| | - Bayram Yilmaz
- f Department of Physiology , Faculty of Medicine, Yeditepe University , Istanbul , Turkey
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10
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Aguer C, Piccolo BD, Fiehn O, Adams SH, Harper ME. A novel amino acid and metabolomics signature in mice overexpressing muscle uncoupling protein 3. FASEB J 2017; 31:814-827. [PMID: 27871066 PMCID: PMC5240668 DOI: 10.1096/fj.201600914r] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/31/2016] [Indexed: 12/20/2022]
Abstract
Uncoupling protein 3 (UCP3) is highly selectively expressed in skeletal muscle and is known to lower mitochondrial reactive oxygen species and promote fatty acid oxidation; however, the global impact of UCP3 activity on skeletal muscle and whole-body metabolism have not been extensively studied. We utilized untargeted metabolomics to identify novel metabolites that distinguish mice overexpressing UCP3 in muscle, both at rest and after exercise regimens that challenged muscle metabolism, to potentially unmask subtle phenotypes. Male wild-type (WT) and muscle-specific UCP3-overexpressing transgenic (UCP3 Tg) C57BL/6J mice were compared with or without a 5 wk endurance training protocol at rest or after an acute exercise bout (EB). Skeletal muscle, liver, and plasma samples were analyzed by gas chromatography time-of-flight mass spectrometry. Discriminant metabolites were considered if within the top 99th percentile of variable importance measurements obtained from partial least-squares discriminant analysis models. A total of 80 metabolites accurately discriminated UCP3 Tg mice from WT when modeled within a specific exercise condition (i.e., untrained/rested, endurance trained/rested, untrained/EB, and endurance trained/EB). Results revealed that several amino acids and amino acid derivatives in skeletal muscle and plasma of UCP3 Tg mice (e.g., Asp, Glu, Lys, Tyr, Ser, Met) were significantly reduced after an EB; that metabolites associated with skeletal muscle glutathione/Met/Cys metabolism (2-hydroxybutanoic acid, oxoproline, Gly, and Glu) were altered in UCP3 Tg mice across all training and exercise conditions; and that muscle metabolite indices of dehydrogenase activity were increased in UCP3 Tg mice, suggestive of a shift in tissue NADH/NAD+ ratio. The results indicate that mitochondrial UCP3 activity affects metabolism well beyond fatty acid oxidation, regulating biochemical pathways associated with amino acid metabolism and redox status. That select metabolites were altered in liver of UCP3 Tg mice highlights that changes in muscle UCP3 activity can also affect other organ systems, presumably through changes in systemic metabolite trafficking.-Aguer, C., Piccolo, B. D., Fiehn, O., Adams, S. H., Harper, M.-E. A novel amino acid and metabolomics signature in mice overexpressing muscle uncoupling protein 3.
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Affiliation(s)
- Céline Aguer
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Institut de Recherche de l'Hôpital Montfort, Ottawa, Ontario, Canada
| | - Brian D Piccolo
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Oliver Fiehn
- West Coast Metabolomics Center, Genome Center, University of California, Davis, Davis, California, USA
- Biochemistry Department, King Abdulaziz University, Jeddah, Saudi Arabia; and
| | - Sean H Adams
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA;
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Mary-Ellen Harper
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada;
- Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, Ontario, Canada
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11
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Castrejón-Tellez V, Rodríguez-Pérez JM, Pérez-Torres I, Pérez-Hernández N, Cruz-Lagunas A, Guarner-Lans V, Vargas-Alarcón G, Rubio-Ruiz ME. The Effect of Resveratrol and Quercetin Treatment on PPAR Mediated Uncoupling Protein (UCP-) 1, 2, and 3 Expression in Visceral White Adipose Tissue from Metabolic Syndrome Rats. Int J Mol Sci 2016; 17:ijms17071069. [PMID: 27399675 PMCID: PMC4964445 DOI: 10.3390/ijms17071069] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 06/16/2016] [Accepted: 06/28/2016] [Indexed: 12/25/2022] Open
Abstract
Uncoupling proteins (UCPs) are members of the mitochondrial anion carrier superfamily involved in the control of body temperature and energy balance regulation. They are currently proposed as therapeutic targets for treating obesity and metabolic syndrome (MetS). We studied the gene expression regulation of UCP1, -2, and -3 in abdominal white adipose tissue (WAT) from control and MetS rats treated with two doses of a commercial mixture of resveratrol (RSV) and quercetin (QRC). We found that UCP2 was the predominantly expressed isoform, UCP3 was present at very low levels, and UCP1 was undetectable. The treatment with RSV + QRC did not modify UCP3 levels; however, it significantly increased UCP2 mRNA in control and MetS rats in association with an increase in oleic and linoleic fatty acids. WAT from MetS rats showed a significantly increased expression of peroxisome proliferator-activated receptor (PPAR)-α and PPAR-γ when compared to the control group. Furthermore, PPAR-α protein levels were increased by the highest dose of RSV + QRC in the control and MetS groups. PPAR-γ expression was only increased in the control group. We conclude that the RSV + QRC treatment leads to overexpression of UCP2, which is associated with an increase in MUFA and PUFA, which might increase PPAR-α expression.
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Affiliation(s)
- Vicente Castrejón-Tellez
- Department of Physiology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Tlalpan, Mexico City 14080, Mexico.
| | - José Manuel Rodríguez-Pérez
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Tlalpan, Mexico City 14080, Mexico.
| | - Israel Pérez-Torres
- Department of Pathology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Tlalpan, Mexico City 14080, Mexico.
| | - Nonanzit Pérez-Hernández
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Tlalpan, Mexico City 14080, Mexico.
| | - Alfredo Cruz-Lagunas
- Department of Immunology Research, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas", Calzada de Tlalpan 4502, Tlalpan, Mexico City 14080, Mexico.
| | - Verónica Guarner-Lans
- Department of Physiology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Tlalpan, Mexico City 14080, Mexico.
| | - Gilberto Vargas-Alarcón
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Tlalpan, Mexico City 14080, Mexico.
| | - María Esther Rubio-Ruiz
- Department of Physiology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Tlalpan, Mexico City 14080, Mexico.
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12
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Chen W, Xu H, Chen X, Liu Z, Zhang W, Xia D. Functional and Activity Analysis of Cattle UCP3 Promoter with MRFs-Related Factors. Int J Mol Sci 2016; 17:ijms17050682. [PMID: 27164086 PMCID: PMC4881508 DOI: 10.3390/ijms17050682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 04/09/2016] [Accepted: 04/13/2016] [Indexed: 12/18/2022] Open
Abstract
Uncoupling protein 3 (UCP3) is mainly expressed in muscle. It plays an important role in muscle, but less research on the regulation of cattle UCP3 has been performed. In order to elucidate whether cattle UCP3 can be regulated by muscle-related factors, deletion of cattle UCP3 promoter was amplified and cloned into pGL3-basic, pGL3-promoter and PEGFP-N3 vector, respectively, then transfected into C2C12 myoblasts cells and UCP3 promoter activity was measured using the dual-Luciferase reporter assay system. The results showed that there is some negative-regulatory element from −620 to −433 bp, and there is some positive-regulatory element between −433 and −385 bp. The fragment (1.08 kb) of UCP3 promoter was cotransfected with muscle-related transcription factor myogenic regulatory factors (MRFs) and myocyte-specific enhancer factor 2A (MEF2A). We found that UCP3 promoter could be upregulated by Myf5, Myf6 and MyoD and downregulated by MyoG and MEF2A.
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Affiliation(s)
- Wei Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Guizhou University, Guiyang 550025, China.
- College of Animal Science, Guizhou University, Guiyang 550025, China.
- College of Life Science, Guizhou University, Guiyang 550025, China.
| | - Houqiang Xu
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Guizhou University, Guiyang 550025, China.
- College of Animal Science, Guizhou University, Guiyang 550025, China.
| | - Xiang Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Guizhou University, Guiyang 550025, China.
- College of Animal Science, Guizhou University, Guiyang 550025, China.
| | - Zhongwei Liu
- College of Life Science, Guizhou University, Guiyang 550025, China.
| | - Wen Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Guizhou University, Guiyang 550025, China.
| | - Dan Xia
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Guizhou University, Guiyang 550025, China.
- College of Animal Science, Guizhou University, Guiyang 550025, China.
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13
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Lapice E, Monticelli A, Cocozza S, Pinelli M, Massimino E, Giacco A, Rivellese AA, Cocozza S, Riccardi G, Vaccaro O. The combination of UCP3-55CT and PPARγ2Pro12Ala polymorphisms affects BMI and substrate oxidation in two diabetic populations. Nutr Metab Cardiovasc Dis 2016; 26:400-406. [PMID: 27089973 DOI: 10.1016/j.numecd.2016.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 12/18/2015] [Accepted: 01/24/2016] [Indexed: 01/13/2023]
Abstract
BACKGROUND AND AIM To evaluate the combined contribution of UCP3-55CT and PPARγ2 Pro12Ala polymorphisms as correlates of BMI, energy expenditure (REE) and substrate oxidation in people with type 2 diabetes. METHODS AND RESULTS Two independent population with type 2 diabetes were studied: population A, n = 272; population B, n = 269. Based on both UCP3 and PPARγ2 genotypes three groups were created. Carriers of the PPARγ2 Pro12Ala in combination with the CC genotype of UCP3 (ProAla/CC, group 1); carriers of only one of these genotypes (either CC/ProPro or CT-TT/ProAla, group 2); people with neither variants (CT-TT/ProPro, group 3). In both populations BMI (kg/m(2)) was highest in group 1, intermediate in group 2 and lowest in group 3, independent of energy intake (i.e 35.3 ± 6.7 vs 33.4 ± 5.4 vs 31.8 ± 3, p < 0.02, population A; 32.4 ± 4.2 vs 31.7 ± 3.8 vs 30.1 ± 2.7; p < 0.03, population B). People with the ProAla/CC genotype (group 1) showed similar REE, but lower lipid oxidation (10.9 vs 13.9 g/kg fat free mass/day; p = 0.04) and higher carbohydrate oxidation (23.6 vs 15.6 g/kg fat free mass/day; p = 0.02) than carriers of other genotypes. CONCLUSIONS The combination of UCP3-55 CC and PPARγ2 Pro12Ala genotypes is associated with significantly higher BMI than other PPARγ2-UCP3 genotype combinations, partly due to a reduced ability in lipids oxidation. The relative importance of these mechanism(s) may be different in non diabetic people.
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Affiliation(s)
- E Lapice
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Italy.
| | - A Monticelli
- Department of Molecular Medicine and Medical Biotechnology (DMMBM), University of Naples Federico II, Italy; Institute Experimental Endocrinology and Oncology "Gaetano Salvatore" (IEOS) - CNR, Naples, Italy
| | - S Cocozza
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Italy
| | - M Pinelli
- Department of Molecular Medicine and Medical Biotechnology (DMMBM), University of Naples Federico II, Italy
| | - E Massimino
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Italy
| | - A Giacco
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Italy
| | - A A Rivellese
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Italy
| | - S Cocozza
- Department of Molecular Medicine and Medical Biotechnology (DMMBM), University of Naples Federico II, Italy
| | - G Riccardi
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Italy
| | - O Vaccaro
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Italy
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14
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Kim S, Myers L, Ravussin E, Cherry KE, Jazwinski SM. Single nucleotide polymorphisms linked to mitochondrial uncoupling protein genes UCP2 and UCP3 affect mitochondrial metabolism and healthy aging in female nonagenarians. Biogerontology 2016; 17:725-36. [PMID: 26965008 DOI: 10.1007/s10522-016-9643-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 03/03/2016] [Indexed: 12/22/2022]
Abstract
Energy expenditure decreases with age, but in the oldest-old, energy demand for maintenance of body functions increases with declining health. Uncoupling proteins have profound impact on mitochondrial metabolic processes; therefore, we focused attention on mitochondrial uncoupling protein genes. Alongside resting metabolic rate (RMR), two SNPs in the promoter region of UCP2 were associated with healthy aging. These SNPs mark potential binding sites for several transcription factors; thus, they may affect expression of the gene. A third SNP in the 3'-UTR of UCP3 interacted with RMR. This UCP3 SNP is known to impact UCP3 expression in tissue culture cells, and it has been associated with body weight and mitochondrial energy metabolism. The significant main effects of the UCP2 SNPs and the interaction effect of the UCP3 SNP were also observed after controlling for fat-free mass (FFM) and physical-activity related energy consumption. The association of UCP2/3 with healthy aging was not found in males. Thus, our study provides evidence that the genetic risk factors for healthy aging differ in males and females, as expected from the differences in the phenotypes associated with healthy aging between the two sexes. It also has implications for how mitochondrial function changes during aging.
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Affiliation(s)
- Sangkyu Kim
- Tulane Center for Aging and Department of Medicine, Tulane University Health Sciences Center, 1430 Tulane Ave, SL-12, New Orleans, LA, 70112, USA.
| | - Leann Myers
- Department of Biostatistics and Bioinformatics, School of Public Health and Tropical Medicine, Tulane University Health Sciences Center, New Orleans, LA, USA
| | - Eric Ravussin
- Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Katie E Cherry
- Department of Psychology, Louisiana State University, Baton Rouge, LA, USA
| | - S Michal Jazwinski
- Tulane Center for Aging and Department of Medicine, Tulane University Health Sciences Center, 1430 Tulane Ave, SL-12, New Orleans, LA, 70112, USA
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