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Fawaz S, Martin Alonso A, Qiu Y, Ramnath R, Stowell-Connolly H, Gamez M, May C, Down C, Coward RJ, Butler MJ, Welsh GI, Satchell SC, Foster RR. Adiponectin Reduces Glomerular Endothelial Glycocalyx Disruption and Restores Glomerular Barrier Function in a Mouse Model of Type 2 Diabetes. Diabetes 2024; 73:964-976. [PMID: 38530908 DOI: 10.2337/db23-0455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 02/26/2024] [Indexed: 03/28/2024]
Abstract
Adiponectin has vascular anti-inflammatory and protective effects. Although adiponectin protects against the development of albuminuria, historically, the focus has been on podocyte protection within the glomerular filtration barrier (GFB). The first barrier to albumin in the GFB is the endothelial glycocalyx (eGlx), a surface gel-like barrier covering glomerular endothelial cells (GEnCs). In diabetes, eGlx dysfunction occurs before podocyte damage; hence, we hypothesized that adiponectin could protect from eGlx damage to prevent early vascular damage in diabetic kidney disease (DKD). Globular adiponectin (gAd) activated AMPK signaling in human GEnCs through AdipoR1. It significantly reduced eGlx shedding and the tumor necrosis factor-α (TNF-α)-mediated increase in syndecan-4 (SDC4) and MMP2 mRNA expression in GEnCs in vitro. It protected against increased TNF-α mRNA expression in glomeruli isolated from db/db mice and against expression of genes associated with glycocalyx shedding (namely, SDC4, MMP2, and MMP9). In addition, gAd protected against increased glomerular albumin permeability (Ps'alb) in glomeruli isolated from db/db mice when administered intraperitoneally and when applied directly to glomeruli (ex vivo). Ps'alb was inversely correlated with eGlx depth in vivo. In summary, adiponectin restored eGlx depth, which was correlated with improved glomerular barrier function, in diabetes. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Sarah Fawaz
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Aldara Martin Alonso
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Yan Qiu
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Raina Ramnath
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Holly Stowell-Connolly
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Monica Gamez
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Carl May
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Colin Down
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Richard J Coward
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Matthew J Butler
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Gavin I Welsh
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Simon C Satchell
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
| | - Rebecca R Foster
- Bristol Renal, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, U.K
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Wang Q, Chen Y, Xie Y, Xia Y, Xie Z, Huang G, Fan L, Zhou Z, Li X. Type 2 Diabetes Family History as a Significant Index on the Clinical Heterogeneity Differentiation in Type 1 Diabetes. J Clin Endocrinol Metab 2023; 108:e1633-e1641. [PMID: 37319368 DOI: 10.1210/clinem/dgad363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/29/2023] [Accepted: 06/13/2023] [Indexed: 06/17/2023]
Abstract
CONTEXT Family history of type 2 diabetes (T2D) is an important but neglected parameter; however, its role in identifying the heterogeneity and subtypes of type 1 diabetes (T1D) remains unclear. OBJECTIVE We investigated the effect of family history of T2D on the clinical phenotype of T1D patients and evaluated its value in T1D classification. METHODS A total of 1410 T1D patients were enrolled in this prospective study. Information on family history of T2D in first-degree relatives (FDRs) was collected by research nurses using a semi-structured questionnaire as previously described. The effect of family history of T2D on clinical characteristics was evaluated in overall and subgroups of T1D patients stratified by islet autoantibodies, onset age, and human leukocyte antigen (HLA) genotype. Cluster analysis was performed to identify family history of T2D-related subgroups. RESULTS A total of 10% (141/1410) of patients had at least 1 FDR diagnosed with T2D. A milder phenotype associated with family history of T2D was present in overall T1D patients, including older onset age (P < .001), higher body mass index (P < .001), higher fasting and postprandial C-peptide levels (all P < .01), lower positive rates of all islet autoantibodies, and susceptible HLA genotypes (all P < .05). Clinical heterogeneity associated with family history of T2D in the T1D subgroup stratified by autoimmunity, age of onset, and HLA genotypes was consistent. Using family history of T2D as a cluster variable, T1D patients were divided into 5 clusters, and patients in the T2D family history cluster displayed a milder phenotype than others. CONCLUSION Family history of T2D should be considered as an important indicator for precise subclassification of T1D patients based on clinical heterogeneity.
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Affiliation(s)
- Qianrong Wang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Yan Chen
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Yuting Xie
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Ying Xia
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Zhiguo Xie
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Gan Huang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Li Fan
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Zhiguang Zhou
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Xia Li
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
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Chen Y, Wang Q, Xie Z, Huang G, Fan L, Li X, Zhou Z. The impact of family history of type 2 diabetes on clinical heterogeneity in idiopathic type 1 diabetes. Diabetes Obes Metab 2023; 25:417-425. [PMID: 36200314 DOI: 10.1111/dom.14884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/28/2022] [Accepted: 10/03/2022] [Indexed: 02/02/2023]
Abstract
AIM To investigate the impact of family history of type 2 diabetes (T2D) on the clinical phenotypes of patients with idiopathic type 1 diabetes (T1D). METHODS In clinically diagnosed T1D cases, a total of 335 idopathic T1D patients were included in the study, after excluding autoimmune T1D using islet autoantibody testing and monogenic diabetes using a custom monogenic diabetes gene panel obtained from clinically diagnosed T1D cases. A semi-structured questionnaire was used to collect information on the presence of T2D in first-degree relatives. The demographic and metabolic markers of idiopathic T1D patients were analysed. Subgroup analysis was performed to investigate potential interactions between T2D family history and human leukocyte antigen (HLA) genotypes. RESULTS A total of 18.2% of individuals with idiopathic T1D had a T2D family history, and these individuals were more likely to have features associated with T2D, such as older age of onset, higher body mass index at diagnosis, lower insulin dosage and better beta-cell function, as indicated by higher levels of fasting C-peptide and 2-hour postprandial C-peptide (all P < 0.05). Additionally, regardless of HLA susceptible genotypes, the impact of family history of T2D was consistently observed in idiopathic T1D patients. Multivariable analyses showed that T2D family history was negatively correlated with the risk of beta-cell function failure in idiopathic T1D patients (P < 0.05). CONCLUSIONS Family history of T2D may be implicated in the heterogeneity of idiopathic T1D patients.
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Affiliation(s)
- Yan Chen
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Qianrong Wang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhiguo Xie
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Gan Huang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Li Fan
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xia Li
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhiguang Zhou
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
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Kaiyrlykyzy A, Umbayev B, Masoud AR, Baibulatova A, Tsoy A, Olzhayev F, Alzhanova D, Zholdasbekova G, Davletov K, Akilzhanova A, Askarova S. Circulating adiponectin levels, expression of adiponectin receptors, and methylation of adiponectin gene promoter in relation to Alzheimer's disease. BMC Med Genomics 2022; 15:262. [PMID: 36527105 PMCID: PMC9756783 DOI: 10.1186/s12920-022-01420-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The role of adiponectin (ADIPOQ) in Alzheimer's disease (AD) has been documented, however, demonstrating controversial results. In this study, we investigated blood serum ADIPOQ levels, methylation of the adiponectin gene promoter, and adiponectin receptors (AdipoR1 and AdipoR2) expression in blood samples isolated from AD patients and healthy controls. METHODS We performed a case-control study including 248 subjects (98 AD patients and 150 healthy controls); ADIPOQ serum levels, AdipoR1, and AdipoR2 levels in PBMC were measured by ELISA Kits, and ADIPOQ gene methylation was analyzed using methyl-specific PCR. RESULTS Serum adiponectin levels were threefold higher in the AD group compared to the controls. We have also found a positive correlation between adiponectin and MMSE scores and high-density lipoprotein cholesterol (HDL-C) in AD patients. A significant difference in the proportion of methylation of the CpG sites at - 74 nt of the ADIPOQ gene promoter was detected in AD cases, and the levels of adiponectin in blood serum were significantly higher in methylated samples in the AD group compared to controls. The amount of AdipoR1 was significantly higher among AD subjects, while the expression of AdipoR2 did not vary between AD patients and controls. CONCLUSION These findings may contribute to a deeper understanding of the etiological factors leading to the development of dementia and may serve as a basis for the development of predictive biomarkers of AD.
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Affiliation(s)
- Aiym Kaiyrlykyzy
- grid.428191.70000 0004 0495 7803Center for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, Kazakhstan ,grid.77184.3d0000 0000 8887 5266Faculty of Medicine and Public Health, al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Bauyrzhan Umbayev
- grid.428191.70000 0004 0495 7803Center for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, Kazakhstan
| | - Abdul-Razak Masoud
- grid.428191.70000 0004 0495 7803Center for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, Kazakhstan ,grid.259237.80000000121506076Louisiana Tech University, Ruston, LA USA
| | - Aida Baibulatova
- grid.428191.70000 0004 0495 7803Center for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, Kazakhstan
| | - Andrey Tsoy
- grid.428191.70000 0004 0495 7803Center for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, Kazakhstan
| | - Farkhad Olzhayev
- grid.428191.70000 0004 0495 7803Center for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, Kazakhstan
| | - Dinara Alzhanova
- grid.501850.90000 0004 0467 386XDepartment of Neurology and Psychiatry, Astana Medical University, Astana, Kazakhstan ,Open Clinic, Astana, Kazakhstan
| | - Gulnaz Zholdasbekova
- grid.443557.40000 0004 0400 6856Karaganda State Medical University, Karaganda, Kazakhstan
| | - Kairat Davletov
- grid.443453.10000 0004 0387 8740Asfendiyarov Kazakh National Medical University, Almaty, Kazakhstan
| | - Ainur Akilzhanova
- grid.428191.70000 0004 0495 7803Center for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, Kazakhstan
| | - Sholpan Askarova
- grid.428191.70000 0004 0495 7803Center for Life Sciences, National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, Kazakhstan
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Shramko I, Ageeva E, Krutikov E, Maliy K, Repinskaya I, Fomochkina I, Kubishkin A, Gurtovaya A, Tarimov C, Shekhar S. Polymorphism in Adiponectin and Adiponectin Receptor Genes in Diabetes Mellitus Pathogenesis. PATHOPHYSIOLOGY 2022; 29:81-91. [PMID: 35366291 PMCID: PMC8956057 DOI: 10.3390/pathophysiology29010008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/22/2022] [Accepted: 02/25/2022] [Indexed: 12/24/2022] Open
Abstract
The role played by hereditary factors in the development of diabetes mellitus type 2 (DM2) has not yet been fully established. Therefore, the purpose of our study was to investigate the prevalence of adiponectin and polymorphism in its gene receptors in connection with the primary symptoms of DM2 pathogenesis. Genomic DNA was isolated from the whole blood of 94 patients with an established diagnosis of DM2 using the phenol–chloroform method. Gene polymorphisms were determined using real-time polymerase chain reaction (PCR). The most common polymorphic variants in patients with DM2 were the genotypes AA (rs11061971) and GG (rs16928751) on the ADIPOR2 gene. A strong correlation was found between the rs16928751 polymorphism on the ADIPOR2 gene and increased body mass index (BMI). TG (rs2275737) ADIPOR1 gene genotype carriers were found to have the highest levels of glycosylated hemoglobin (HbA1), whereas TT (rs2275738) caused stable hyperglycemia. In addition, the rs16928751 ADIPOR2 gene polymorphism showed an association with the development of key mechanisms of DM2 in the Russian population, although a number of genomic searches failed to show any association of this gene with DM2. Unique gene variants associated with the risk of developing DM2 in the Crimean population were established.
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Affiliation(s)
- Iuliana Shramko
- Department of General and Clinical Pathophysiology, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University, 295000 Simferopol, Russia; (A.K.); (C.T.)
- Correspondence:
| | - Elizaveta Ageeva
- Department of Medical Biology, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University, 295000 Simferopol, Russia; (E.A.); (A.G.); (S.S.)
| | - Eugene Krutikov
- Department of Propaedeutics of Internal Medicine, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University, 295000 Simferopol, Russia;
| | - Konstantin Maliy
- Department of Biochemistry, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University, 295000 Simferopol, Russia;
| | - Irina Repinskaya
- Department of Internal Medicine, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University, 295000 Simferopol, Russia;
| | - Iryna Fomochkina
- Department of Basic and Clinical Pharmacology, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University; 295000 Simferopol, Russia;
| | - Anatolii Kubishkin
- Department of General and Clinical Pathophysiology, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University, 295000 Simferopol, Russia; (A.K.); (C.T.)
| | - Anna Gurtovaya
- Department of Medical Biology, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University, 295000 Simferopol, Russia; (E.A.); (A.G.); (S.S.)
| | - Cyrill Tarimov
- Department of General and Clinical Pathophysiology, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University, 295000 Simferopol, Russia; (A.K.); (C.T.)
| | - Suman Shekhar
- Department of Medical Biology, S. I. Georgievsky Medical Academy of the Federal State Autonomous Educational Institution of Higher Education, V. I. Vernadsky Crimean Federal University, 295000 Simferopol, Russia; (E.A.); (A.G.); (S.S.)
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Yu H, Hu W, Lin C, Xu L, Liu H, Luo L, Chen R, Huang J, Chen W, Yang C, Kong D, Ding Y. Polymorphisms analysis for association between ADIPO signaling pathway and genetic susceptibility to T2DM in Chinese han population. Adipocyte 2021; 10:463-474. [PMID: 34641739 PMCID: PMC8525967 DOI: 10.1080/21623945.2021.1978728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of the present study is to explored the relationship between ADIPO signalling pathway and T2DM, to provide clues for further study of the pathogenesis of T2DM and to determine the possible drug targets. This study employed a case-control study design. Twenty-three single nucleotide polymorphisms (SNPs) of 13 genes in the selected ADIPO signalling pathway were genotyped by SNPscanTM kit. All statistical analysis was performed by SPSS 25.0, PLINK 1.07, R 2.14.2, Haploview 4.2, SNPstats, and other statistical software packages. In the association analysis based on a single SNPs, rs1044471 had statistical significance in the overdominant model without adjusting covariates. Rs1042531 had statistical significance in the overdominant model. Rs12718444 had statistical significance in the recessive model. There was a linkage disequilibrium between the loci within 9 genes, and the two loci in RXRA gene did not form blocks. Four kernel functions were used for SNPs set analysis based on ADIPO signalling pathway showed that there was no statistical significance whether covariates were added or not, P>0.05.According to our research results, it is found that some single nucleotide polymorphisms (ADIPOR2 rs1044471, PCK1 rs1042531, GLUT1 rs12718444) in the adiponectin signalling pathway may be associated with T2DM
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Affiliation(s)
- Haibing Yu
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Wei Hu
- Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong, China
| | - Chunwen Lin
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
| | - Lin Xu
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
| | - Hao Liu
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
| | - Ling Luo
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
| | - Rong Chen
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
| | - Jialu Huang
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
| | - Weiying Chen
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
| | - Chen Yang
- Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Danli Kong
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
| | - Yuanlin Ding
- Department of Epidemiology and Medical Statistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
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Sharma A, Mah M, Ritchie RH, De Blasio MJ. The adiponectin signalling pathway - A therapeutic target for the cardiac complications of type 2 diabetes? Pharmacol Ther 2021; 232:108008. [PMID: 34610378 DOI: 10.1016/j.pharmthera.2021.108008] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/17/2021] [Accepted: 09/23/2021] [Indexed: 12/11/2022]
Abstract
Diabetes is associated with an increased risk of heart failure (HF). This is commonly termed diabetic cardiomyopathy and is often characterised by increased cardiac fibrosis, pathological hypertrophy, increased oxidative and endoplasmic reticulum stress as well as diastolic dysfunction. Adiponectin is a cardioprotective adipokine that is downregulated in settings of type 2 diabetes (T2D) and obesity. Furthermore, both adiponectin receptors (AdipoR1 and R2) are also downregulated in these settings which further results in impaired cardiac adiponectin signalling and reduced cardioprotection. In many cardiac pathologies, adiponectin signalling has been shown to protect against cardiac remodelling and lipotoxicity, however its cardioprotective actions in T2D-induced cardiomyopathy remain unresolved. Diabetic cardiomyopathy has historically lacked effective treatment options. In this review, we summarise the current evidence for links between the suppressed adiponectin signalling pathway and cardiac dysfunction, in diabetes. We describe adiponectin receptor-mediated signalling pathways that are normally associated with cardioprotection, as well as current and potential future therapeutic approaches that could target this pathway as possible interventions for diabetic cardiomyopathy.
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Affiliation(s)
- Abhipree Sharma
- Heart Failure Pharmacology, Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Michael Mah
- Heart Failure Pharmacology, Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Rebecca H Ritchie
- Heart Failure Pharmacology, Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; Department of Pharmacology, Monash University, Clayton, VIC 3800, Australia; Department of Medicine, Monash University, Clayton, VIC 3800, Australia
| | - Miles J De Blasio
- Heart Failure Pharmacology, Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; Department of Pharmacology, Monash University, Clayton, VIC 3800, Australia.
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da Silva Rosa SC, Liu M, Sweeney G. Adiponectin Synthesis, Secretion and Extravasation from Circulation to Interstitial Space. Physiology (Bethesda) 2021; 36:134-149. [PMID: 33904786 PMCID: PMC8461789 DOI: 10.1152/physiol.00031.2020] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Adiponectin, an adipokine that circulates as multiple multimeric complexes at high levels in serum, has antidiabetic, anti-inflammatory, antiatherogenic, and cardioprotective properties. Understanding the mechanisms regulating adiponectin's physiological effects is likely to provide critical insight into the development of adiponectin-based therapeutics to treat various metabolic-related diseases. In this review, we summarize our current understanding on adiponectin action in its various target tissues and in cellular models. We also focus on recent advances in two particular regulatory aspects; namely, the regulation of adiponectin gene expression, multimerization, and secretion, as well as extravasation of circulating adiponectin to the interstitial space and its degradation. Finally, we discuss some potential therapeutic approaches using adiponectin as a target and the current challenges facing adiponectin-based therapeutic interventions.
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Affiliation(s)
| | - Meilian Liu
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico
| | - Gary Sweeney
- Department of Biology, York University, Toronto, Ontario, Canada
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Adiponectin inhibits lipoplysaccharide-induced inflammation and promotes osteogenesis in hPDLCs. Biosci Rep 2021; 41:227897. [PMID: 33616153 PMCID: PMC7926180 DOI: 10.1042/bsr20192668] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/21/2020] [Accepted: 02/16/2021] [Indexed: 11/17/2022] Open
Abstract
Periodontal diseases are infections of the structures that surround and support the teeth; they are characterized by local inflammation and alveolar bone loss. Most treatments focus on only one aspect, inhibiting inflammation, or promoting osteoblasts. We set out to develop a new method that would intervene in the two aspects simultaneously. Adiponectin (APN), secreted by adipocytes, inhibits the inflammatory response and promotes osteogenesis. However, its role in human periodontal ligament cells (hPDLCs) is unclear. Therefore, we aim to investigate whether APN could suppress lipopolysaccharide (LPS)-induced inflammation and promote osteogenesis in hPDLCs. In the present study, we stimulated hPDLCs with LPS in the presence or absence of APN. Real-time PCR and Western blotting results demonstrated that APN partially inhibited the activation of the classical nuclear factor κ-B (NF-κB) pathway. These results were confirmed by a change of expressions of NF-κB downstream inflammatory genes, such as decreased cyclooxygenase (COX)-2 and tumor necrosis factor α (TNF-α), along with increased interleukin (IL)-10. As for the role of APN in osteogenesis, Alizarin Red S staining showed that APN treatment induced more calcium deposition nodules than controls. We also found that APN enhanced the expression of osteoblast-related genes (osteopontin (OPN), collagen 1, osteocalcin, alkaline phosphatase, runt-related transcription factor 2 (RUNX2), and bone morphogenetic protein 2) in hPDLCs via the APPL1 (the adaptor protein containing PH domain, PTB domain, and leucine zipper motif 1)/p38 signal transduction pathway. Therefore, APN inhibits LPS-induced inflammation and promotes osteogenesis in hPDLCs and may have potential therapeutic value in treating periodontitis by inhibiting the inflammatory lesions and contributing to bone tissue regeneration.
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Adiponectin/AdipoRs signaling as a key player in testicular aging and associated metabolic disorders. VITAMINS AND HORMONES 2021; 115:611-634. [PMID: 33706964 DOI: 10.1016/bs.vh.2020.12.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Aging undergoes serious worsening of peripheral organs and vital physiological processes including reproductive performances. Altered white adipose tissue and adipocyte functioning during aging results in ectopic lipid storage/obesity or metabolic derangements, leading to insulin resistance state. Eventually, accelerating cellular senescence thereby enhancing the high risk of age-associated metabolic alterations. Such alterations may cause derangement of numerous physiologically active obesity hormones, known as "adipokines." Specifically, adiponectin exhibits insulin sensitizing action causing anti-aging and anti-obesity effects via activation of adiponectin receptors (AdipoRs). The male reproductive physiology from reproductive mature stage to advanced senescent stage undergoes insidious detrimental changes. The mechanisms by which testicular functions decline with aging remain largely speculative. Adiponectin has also recently been shown to regulate metabolism and longevity signaling thus prolonging lifespan. Therefore, the strategy for activating adiponectin/AdipoRs signaling pathways are expected to provide a solid basis for the prevention and treatment of aging and obesity-associated reproductive dysfunctions, as well as for ensuring healthy reproductive longevity in humans.
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Karamian M, Moossavi M, Hemmati M. From diabetes to renal aging: the therapeutic potential of adiponectin. J Physiol Biochem 2021; 77:205-214. [PMID: 33555532 DOI: 10.1007/s13105-021-00790-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 01/14/2021] [Indexed: 12/11/2022]
Abstract
Nowadays, the complications related to diabetes, such as nephropathy, cardiovascular problems, and aging, are highly being considered. Renal cell aging is affected by various mechanisms of inflammation, oxidative stress, and basement membrane thickening, which are significant causes of renal dysfunction in diabetes. Due to recent studies, adiponectin plays a key role in diabetes-related kidney diseases as a fat-derived hormone. In diabetes, reduced adiponectin levels are associated to renal cell aging. Oxidative stress and related signaling pathways are the main routes in which adiponectin may be effective to decline diabetes-associated aging. Therefore, adiponectin signaling in target tissues becomes one of the research areas of interest in metabolism and clinical medicine. Studies on adiponectin signaling will increase our understanding of adiponectin role in diabetes-linked diseases as well as shortening life span conditions which may guide the design of antidiabetic and anti-aging drugs.
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Affiliation(s)
- Mehdi Karamian
- Department of Parasitology and Mycology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Maryam Moossavi
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | - Mina Hemmati
- Department of Biochemistry, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran.
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12
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Guo Q, Chang B, Yu QL, Xu ST, Yi XJ, Cao SC. Adiponectin treatment improves insulin resistance in mice by regulating the expression of the mitochondrial-derived peptide MOTS-c and its response to exercise via APPL1-SIRT1-PGC-1α. Diabetologia 2020; 63:2675-2688. [PMID: 32880686 DOI: 10.1007/s00125-020-05269-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023]
Abstract
AIMS/HYPOTHESIS Adiponectin stimulates mitochondrial biogenesis through peroxisome proliferator-activated receptor-γ coactivator 1α (PGC-1α), a major regulator of mitochondrial biogenesis. MOTS-c (mitochondrial open reading frame of the 12S rRNA) is a biologically active mitochondrial-derived peptide encoded by mitochondrial DNA. It influences the mechanisms of obesity and diabetes. We hypothesised that the adiponectin pathway may regulate the production and/or secretion of MOTS-c in skeletal muscle. We aimed to determine whether exercise and adiponectin affect MOTS-c to improve insulin resistance in mice. METHODS To investigate this hypothesis, we used wild-type C57BL/6 mice subjected to high-fat diet, an exercise regimen, and i.p. injection of recombinant mouse adiponectin (Acrp30) or MOTS-c, and adiponectin knockout (Adipoq-/-) mice (C57BL/6 background) subjected to i.p. injection of Acrp30. C2C12 myotubes were also treated with sirtuin 1 (SIRT1) inhibitor, PGC-1α inhibitor, SIRT1 activator, plasmid-expressed active APPL1 (adaptor protein, phosphotyrosine interacting with PH domain and leucine zipper), pcDNA-SIRT1, or siRNA against APPL1, SIRT1 or PGC-1α. RESULTS In Adipoq-/- mice, MOTS-c levels in the plasma and skeletal muscle were downregulated. In C2C12 myotubes, adiponectin increased the mRNA expression of MOTS-c. APPL1 protein level following adiponectin treatment positively correlated with MOTS-c protein and mRNA levels in C2C12 myotubes. SIRT1 overexpression increased the adiponectin-induced mRNA and protein expression of MOTS-c, SIRT1 and PGC-1α. Pharmacologic and genetic inhibition of PGC-1α suppressed the increases in MOTS-c mRNA and protein levels induced by SIRT1 overexpression. In mice, plasma and skeletal muscle MOTS-c levels were significantly downregulated following high-fat-diet. Exercise and i.p. Acrp30 or MOTS-c increased MOTS-c levels and adiponectin mRNA and protein expression in the plasma and skeletal muscle. CONCLUSIONS/INTERPRETATION Our findings showed that the APPL1-SIRT1-PGC-1α pathway regulates the production and/or secretion of skeletal muscle MOTS-c by mediating adiponectin signalling. Our study provides an insight into the cellular and molecular pathways underlying the pathogenesis of diabetes and shows that MOTS-c is a potential novel therapeutic target in the treatment of diabetes. Graphical abstract.
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Affiliation(s)
- Qi Guo
- Department of Sports Medicine, China Medical University, Shenyang, China
| | - Bo Chang
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Qiong-Li Yu
- Department of Sports Medicine, China Medical University, Shenyang, China
| | - Si-Tong Xu
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Xue-Jie Yi
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, Shenyang, China.
| | - Shi-Cheng Cao
- Department of Sports Medicine, China Medical University, Shenyang, China.
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Feyzi M, Tabandeh MR, Shariati M, Edalatmanesh MA. Age Associated Changes in Transcription of Adiponectin, AdipoR1 and AdipoR2 Genes in Pancreas of Rats. CELL JOURNAL 2020; 22:61-67. [PMID: 32779434 PMCID: PMC7481892 DOI: 10.22074/cellj.2020.6921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 09/02/2019] [Indexed: 12/04/2022]
Abstract
Objective Adiponectin has a crucial role in the function, proliferation and viability of β-cell via action of two receptors:
AdipoR1 and AdipoR2. Nevertheless, age related change of Adiponectin system genes in pancreas is unclear or
controversial. This study sought to investigate the effects of aging process on serum Adiponectin levels, Adiponectin
and its receptor expression in the rat pancreas.
Materials and Methods In this experimental study, insulin resistance markers including serum insulin and glucose
concentrations, homeostatic model assessment of insulin resistance (HOMA-IR), oral glucose tolerance test (OGTT),
glucose induced insulin secretion (GIIS), serum Adiponectin levels, pancreatic expression of Adiponectin and its
receptors were studied in male Sprague-Dawley rats at the age of 2, 5, 10, 18, 52 and 72 weeks of age.
Results We found that aging triggered signs of insulin resistance characteristics in rats at 72 age weeks including
marked insulin reduction, hyperglycemia and increased HOMA-IR. Circulating Adiponectin as well as pancreatic
expression of Adiponectin and AdipoR1 was gradually decreased with age, while the opposite expression pattern of
AdipoR2 was observed in the old rats.
Conclusion Because Adiponectin and Adiponectin signaling have crucial role in β-cell function and viability, we
concluded that reduction of Adiponectin signaling may be involved in aging induced β-cell dysfunction. As a result,
manipulation of Adiponectin signaling may be a beneficial approach for improvement of β-cell function in the old people.
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Affiliation(s)
- Marziyeh Feyzi
- Department of Biology, Fars Science and Research Branch, Islamic Azad University, Fars, Iran.,Department of Biology, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Mohammad Reza Tabandeh
- Department of Basic Sciences, Division of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran. Electronic Address: .,Stem Cells and Transgenic Technology Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mehrdad Shariati
- Department of Biology, Kazerun Branch, Islamic Azad University, Kazerun, Iran
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Amador M, Meza CA, McAinch AJ, King GA, Covington JD, Bajpeyi S. Exercise-Induced Improvements in Insulin Sensitivity Are Not Attenuated by a Family History of Type 2 Diabetes. Front Endocrinol (Lausanne) 2020; 11:120. [PMID: 32231642 PMCID: PMC7088124 DOI: 10.3389/fendo.2020.00120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 02/24/2020] [Indexed: 01/15/2023] Open
Abstract
Introduction: A family history of type 2 diabetes (FH+) is a major risk factor for the development of insulin resistance and type 2 diabetes. However, it remains unknown whether exercise-induced improvements in insulin sensitivity and metabolic flexibility are impacted by a FH+. Therefore, we investigated whether improvements in insulin sensitivity, metabolic flexibility, body composition, aerobic fitness and muscle strength are limited by a FH+ following eight weeks of combined exercise training compared to individuals without a family history of type 2 diabetes (FH-). Methods: Twenty (n = 10 FH-, n = 10 FH+) young, healthy, sedentary, normoglycemic, Mexican-American males (age: FH- 22.50 ± 0.81, FH+ 23.41 ± 0.86 years; BMI: FH- 27.91 ± 1.55, FH+ 26.64 ± 1.02 kg/m2) underwent eight weeks of combined aerobic and resistance exercise training three times/week (35 min aerobic followed by six full-body resistance exercises). Insulin sensitivity was assessed via hyperinsulinemic euglycemic clamps. Metabolic flexibility was assessed by the change in respiratory quotient from fasted to insulin-stimulated states. Body composition was determined using dual-energy x-ray absorptiometry. Aerobic fitness was determined by a graded exercise test, and upper- and lower-body strength were assessed via one-repetition maximum bench press and leg strength dynamometer, respectively. Results: Insulin sensitivity, metabolic flexibility, aerobic fitness and strength were not different between groups (p > 0.05). Eight weeks of combined aerobic and resistance exercise training improved insulin sensitivity (FH- p = 0.02, FH+ p = 0.002), increased fat free mass (FH- p = 0.006, FH+ p = 0.001), aerobic fitness (FH- p = 0.03, FH+ p = 0.002), and upper- (FH- p = 0.0001, FH+ p = 0.0001) and lower-body strength (FH- p = 0.0009, FH+ p = 0.0003), but did not change metabolic flexibility (p > 0.05) in both groups. Exercise-induced improvements in metabolic outcomes were similar between groups. Conclusions: Insulin sensitivity, metabolic flexibility, aerobic fitness and strength were not compromised by a FH+. Additionally, a FH+ is not a limiting factor for exercise-induced improvements in insulin sensitivity, aerobic fitness, body composition, and strength in normoglycemic young Mexican-American men.
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Affiliation(s)
- Manuel Amador
- Metabolic, Nutrition and Exercise Research (MiNER) Laboratory, Department of Kinesiology, University of Texas at El Paso, El Paso, TX, United States
| | - Cesar A. Meza
- Metabolic, Nutrition and Exercise Research (MiNER) Laboratory, Department of Kinesiology, University of Texas at El Paso, El Paso, TX, United States
| | - Andrew J. McAinch
- Institute for Health and Sport, College of Health and Biomedicine, Victoria University, Melbourne, VIC, Australia
- Australian Institute for Musculoskeletal Science, Victoria University, Melbourne, VIC, Australia
| | - George A. King
- Metabolic, Nutrition and Exercise Research (MiNER) Laboratory, Department of Kinesiology, University of Texas at El Paso, El Paso, TX, United States
| | - Jeffrey D. Covington
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, VT, United States
| | - Sudip Bajpeyi
- Metabolic, Nutrition and Exercise Research (MiNER) Laboratory, Department of Kinesiology, University of Texas at El Paso, El Paso, TX, United States
- *Correspondence: Sudip Bajpeyi
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High molecular weight adiponectin reduces glucolipotoxicity-induced inflammation and improves lipid metabolism and insulin sensitivity via APPL1-AMPK-GLUT4 regulation in 3T3-L1 adipocytes. Atherosclerosis 2019; 288:67-75. [DOI: 10.1016/j.atherosclerosis.2019.07.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 06/17/2019] [Accepted: 07/11/2019] [Indexed: 02/06/2023]
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16
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Iwabu M, Okada-Iwabu M, Yamauchi T, Kadowaki T. Adiponectin/AdipoR Research and Its Implications for Lifestyle-Related Diseases. Front Cardiovasc Med 2019; 6:116. [PMID: 31475160 PMCID: PMC6703139 DOI: 10.3389/fcvm.2019.00116] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 07/29/2019] [Indexed: 11/16/2022] Open
Abstract
The number of patients with obesity continues to increase seriously worldwide. It has become clear that, against a background of insulin resistance, obesity induces the so-called metabolic syndrome consisting of diabetes, hypertension, and dyslipidemia, leading, consequently, to an increased incidence of cardiovascular disease in affected individuals. It is shown that environmental factors, e.g., high-fat diet and lack of physical activity, not only promote the onset of obesity but lead to impairment of the action of adiponectin and its receptors, thus accounting in part for the onset of insulin resistance, type 2 diabetes/metabolic syndrome, and atherosclerosis in modern society. This review is intended to highlight some milestones in adipocyte research from the discovery of the insulin-sensitizing properties of adiponectin to the elucidation of the structures of its receptors, as well as to clarify their therapeutic implications and prospects for lifestyle-related diseases.
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Affiliation(s)
- Masato Iwabu
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Laboratory for Advanced Research on Pathophysiology of Metabolic Diseases, The University of Tokyo, Tokyo, Japan.,Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency, Kawaguchi, Japan
| | - Miki Okada-Iwabu
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Laboratory for Advanced Research on Pathophysiology of Metabolic Diseases, The University of Tokyo, Tokyo, Japan
| | - Toshimasa Yamauchi
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,AMED-CREST, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Takashi Kadowaki
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Prevention of Diabetes and Life-Style Related Diseases, The University of Tokyo, Tokyo, Japan.,Department of Metabolism and Nutrition, Faculty of Medicine, Mizonokuchi Hospital, Teikyo University, Kawasaki, Japan
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17
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Barbe A, Bongrani A, Mellouk N, Estienne A, Kurowska P, Grandhaye J, Elfassy Y, Levy R, Rak A, Froment P, Dupont J. Mechanisms of Adiponectin Action in Fertility: An Overview from Gametogenesis to Gestation in Humans and Animal Models in Normal and Pathological Conditions. Int J Mol Sci 2019; 20:ijms20071526. [PMID: 30934676 PMCID: PMC6479753 DOI: 10.3390/ijms20071526] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/20/2019] [Accepted: 03/22/2019] [Indexed: 02/06/2023] Open
Abstract
Adiponectin is the most abundant plasma adipokine. It mainly derives from white adipose tissue and plays a key role in the control of energy metabolism thanks to its insulin-sensitising, anti-inflammatory, and antiatherogenic properties. In vitro and in vivo evidence shows that adiponectin could also be one of the hormones controlling the interaction between energy balance and fertility in several species, including humans. Indeed, its two receptors—AdipoR1 and AdipoR2—are expressed in hypothalamic–pituitary–gonadal axis and their activation regulates Kiss, GnRH and gonadotropin expression and/or secretion. In male gonads, adiponectin modulates several functions of both somatic and germ cells, such as steroidogenesis, proliferation, apoptosis, and oxidative stress. In females, it controls steroidogenesis of ovarian granulosa and theca cells, oocyte maturation, and embryo development. Adiponectin receptors were also found in placental and endometrial cells, suggesting that this adipokine might play a crucial role in embryo implantation, trophoblast invasion and foetal growth. The aim of this review is to characterise adiponectin expression and its mechanism of action in male and female reproductive tract. Further, since features of metabolic syndrome are associated with some reproductive diseases, such as polycystic ovary syndrome, gestational diabetes mellitus, preeclampsia, endometriosis, foetal growth restriction and ovarian and endometrial cancers, evidence regarding the emerging role of adiponectin in these disorders is also discussed.
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Affiliation(s)
- Alix Barbe
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- CNRS UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Université François Rabelais de Tours, F-37041 Tours, France.
| | - Alice Bongrani
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- CNRS UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Université François Rabelais de Tours, F-37041 Tours, France.
| | - Namya Mellouk
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- CNRS UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Université François Rabelais de Tours, F-37041 Tours, France.
| | - Anthony Estienne
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- CNRS UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Université François Rabelais de Tours, F-37041 Tours, France.
| | - Patrycja Kurowska
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University, 31-007 Krakow, Poland.
| | - Jérémy Grandhaye
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- CNRS UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Université François Rabelais de Tours, F-37041 Tours, France.
| | - Yaelle Elfassy
- Assistance Publique des Hôpitaux de Paris, Hôpital Tenon, Service de Biologie de la Reproduction, F-75020 Paris, France.
- Université Pierre et Marie Curie Paris 6, F-75005 Paris, France.
- INSERM UMRS_938, Centre de Recherche Saint-Antoine, F-75571 Paris, France.
| | - Rachel Levy
- Assistance Publique des Hôpitaux de Paris, Hôpital Tenon, Service de Biologie de la Reproduction, F-75020 Paris, France.
- Université Pierre et Marie Curie Paris 6, F-75005 Paris, France.
- INSERM UMRS_938, Centre de Recherche Saint-Antoine, F-75571 Paris, France.
| | - Agnieszka Rak
- CNRS UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
| | - Pascal Froment
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- CNRS UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Université François Rabelais de Tours, F-37041 Tours, France.
| | - Joëlle Dupont
- INRA UMR85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- CNRS UMR7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Université François Rabelais de Tours, F-37041 Tours, France.
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Ickin Gulen M, Guven Bagla A, Yavuz O, Hismiogullari AA. Orexin and adiponectin in high fat diet–induced insulin resistance. J Histotechnol 2018. [DOI: 10.1080/01478885.2018.1520952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Meltem Ickin Gulen
- School of Medicine, Department of Histology and Embryology, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Aysel Guven Bagla
- School of Medicine, Department of Histology and Embryology, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Ozlem Yavuz
- Gulhane School of Medicine, Department of Medical Biochemistry, Saglik Bilimleri University, Ankara, Turkey
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ADIPOR2 variant is associated with higher fasting glucose level in non-diabetic Chinese Han population. Int J Diabetes Dev Ctries 2018. [DOI: 10.1007/s13410-018-0620-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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20
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Yang G, Song Q, Sun C, Qin J, Jia J, Yuan X, Zhang Y, Li W. Ctrp9 and adiponectin receptors in Nile tilapia (Oreochromis niloticus): Molecular cloning, tissue distribution and effects on reproductive genes. Gen Comp Endocrinol 2018; 265:160-173. [PMID: 29864417 DOI: 10.1016/j.ygcen.2018.05.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 05/13/2018] [Accepted: 05/31/2018] [Indexed: 12/18/2022]
Abstract
As the close paralog of adiponectin, C1q/TNF-Related Protein 9 (CTRP9) has been reported to be involved in the regulation of glucose and fat metabolism, immunization and endothelial cell functions. However, information regarding the actions of Ctrp9 on reproduction is extremely limited in fish. As a first step, Ctrp9, adiponectin receptor 1 (Adipor1) and Adipor2 were identified from Nile tilapia. The open reading frame (ORF) of ctrp9 was 1020 bp which encoded a 339 amino acids. Moreover, the ORFs of adipor1 and adipor2 were 1131 bp and 1134 bp encoding 376 and 377 amino acids, respectively. Tissue distribution showed that ctrp9 mRNA levels were highest in the kidney in both sexes. And, the expression of adipor1 and adipor2 were widely distributed in all tissues examined, exhibiting high levels in the brain, gonad, gut and stomach. In addition, intraperitoneal (i.p.) injection of gCtrp9 (globular Ctrp9) suppressed the hypothalamic expression of gnrh2 (gonadotropin-releasing hormone 2) and gnrh3, as well as gthα (gonadotropic hormone α), fshβ (follicle-stimulating hormone β), lhβ (luteinizing hormone β), lhr (LH receptor) and fshr (FSH receptor) mRNA levels in the pituitary. The mRNA levels of adipor1, but not adipor2, in the gonads were also inhibited after injection. Moreover, the levels of serum E2 (estrogen) in female and T (testosterone) in male were significantly decreased after injection of gCtrp9. Overall, our data provides novel data indicating, for the first time, a regulatory effect of CTRP9 on teleost reproduction.
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Affiliation(s)
- Guokun Yang
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Qinqin Song
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Caiyun Sun
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jingkai Qin
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jirong Jia
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xi Yuan
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yazhou Zhang
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Wensheng Li
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.
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Wu C, Gao J, Chen L, Shao X, Ye J. Identification, characterization, and expression analysis of adiponectin receptors in black carp Mylopharyngodon piceus in response to dietary carbohydrate. FISH PHYSIOLOGY AND BIOCHEMISTRY 2018; 44:1127-1141. [PMID: 29687170 DOI: 10.1007/s10695-018-0501-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 04/11/2018] [Indexed: 06/08/2023]
Abstract
In the present study, three cDNAs of AdipoRs (MpAdipoR1a, MpAdipoR1b, and MpAdipoR2) were identified from juvenile black carp Mylopharyngodon piceus. There were 375, 378, and 356 amino acids in the MpAdipoR1a, MpAdipoR1b, and MpAdipoR2, respectively. BLAST analysis reveals that MpAdipoRs share high identities with other known AdipoRs from zebrafish, rainbow trout, human, etc. And there were all seven transmembrane regions in the amino acid sequences of MpAdipoR1s and MpAdipoR2, respectively. The relative expression levels of MpAdipoR1s were higher in the liver, blood, brain, and eyes in black carp (p < 0.05). Relatively higher expression of MpAdipoR2 was detected in the liver (p < 0.05) and then in the adipose tissues and blood by real-time PCR assays. The relative expression levels of AdipoR mRNA in the liver, muscle, brain, blood, and adipose tissues were detected by real-time PCR in black carp fed with four levels of dietary carbohydrate (CHO) (10.65, 19.43, 28.84, and 37.91%) for 9 weeks, respectively. The expression levels of MpAdipoR1s in the liver, muscle, brain, and blood were induced and reached to the maximum at optimal dietary CHO (19.43 or 28.84%) and then were decreased at 37.91% dietary CHO, although there were no significant differences on the expression levels of MpAdipoR1a in the liver between 19.43, 28.84, and 37.91% dietary CHO. Similarly, MpAdipoR2 were also induced to the maximal levels in the liver, muscle, brain, and blood at optimal dietary CHO (19.43 or 28.84%) compared with that at 10.65% dietary CHO, although no significant differences were observed on the expression levels of MpAdipoR2 in the liver and muscle between groups fed 19.43 and 37.91% dietary CHO (p > 0.05). However, the expression levels of MpAdipoRs in the adipose tissues were significantly downregulated at excessive dietary CHO (37.91%) compared with other groups (p < 0.05). These results indicated that MpAdipoRs were inducible proteins and might enhance the understanding of their vital roles in the regulation of glucose metabolic homeostasis in black carp.
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Affiliation(s)
- Chenglong Wu
- College of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, People's Republic of China.
| | - Jun'e Gao
- College of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, People's Republic of China
| | - Lian Chen
- College of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, People's Republic of China
| | - Xianping Shao
- College of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, People's Republic of China
| | - Jinyun Ye
- College of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, People's Republic of China
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23
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Singh A, Choubey M, Bora P, Krishna A. Adiponectin and Chemerin: Contrary Adipokines in Regulating Reproduction and Metabolic Disorders. Reprod Sci 2018; 25:1462-1473. [DOI: 10.1177/1933719118770547] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Anusha Singh
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Mayank Choubey
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Puran Bora
- Department of Ophthalmology, Jones Eye Institute, Pat & Willard Walker Eye Research Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Amitabh Krishna
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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O'Brien LC, Graham ZA, Chen Q, Lesnefsky EJ, Cardozo C, Gorgey AS. Plasma adiponectin levels are correlated with body composition, metabolic profiles, and mitochondrial markers in individuals with chronic spinal cord injury. Spinal Cord 2018; 56:863-872. [PMID: 29559683 PMCID: PMC6129201 DOI: 10.1038/s41393-018-0089-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/20/2018] [Accepted: 02/23/2018] [Indexed: 12/15/2022]
Abstract
STUDY DESIGN Cross-sectional design. OBJECTIVES This study examined the relationships between circulating adiponectin levels, body composition, metabolic profile, and measures of skeletal muscle mitochondrial enzyme activity and biogenesis. SETTINGS Clinical Research in a Medical Center. METHODS Plasma adiponectin was quantified in 19 individuals with chronic spinal cord injury (SCI). Body composition was evaluated by dual x-ray absorptiometry and magnetic resonance imaging. Metabolic profile was assessed by basal metabolic rate (BMR), oxygen uptake (VO2), and intravenous glucose tolerance testing. Mitochondrial enzyme activity of skeletal muscle was obtained by spectrophotometric assays and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) and 5' AMP-activated protein kinase (AMPK) protein expression was assessed by Western blots. RESULTS Adiponectin was negatively related to both total and regional fat mass and positively related to lean mass and muscle mass. Furthermore, there were positive relationships between adiponectin and BMR (r = 0.52, P = 0.02) and VO2 (r = 0.73, P = 0.01). Furthermore, adiponectin was positively related to citrate synthase (r = 0.68, P = 0.002) and complex III activity (r = 0.57, P = 0.02). The relationships between adiponectin and body composition remained significant after accounting for age. The relationships between adiponectin, metabolic profile, and markers of mitochondria mass and activity were influenced by age. CONCLUSIONS The study demonstrated that adiponectin is closely related to body composition and metabolic profile in persons with SCI and further supports mechanistic studies suggesting that adiponectin may stimulate mitochondrial biogenesis.
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Affiliation(s)
- Laura C O'Brien
- Spinal Cord Injury and Disorders, Hunter Holmes McGuire VA Medical Center, Richmond, VA, USA.,Department of Physiology and Biophysics, Virginia Commonwealth University, Richmond, VA, USA
| | - Zachary A Graham
- Department of James J. Peters VA Medical Center, Bronx, NY, USA.,Department of Medicine, Icahn School of Medicine, New York, NY, USA
| | - Qun Chen
- Department of Medicine, Division of Cardiology, Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, USA
| | - Edward J Lesnefsky
- Department of Physiology and Biophysics, Virginia Commonwealth University, Richmond, VA, USA.,Department of Medicine, Division of Cardiology, Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, USA.,Medical Services, Hunter Holmes McGuire VA Medical Center, Richmond, VA, USA.,Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA, USA
| | - Christopher Cardozo
- Department of James J. Peters VA Medical Center, Bronx, NY, USA.,Department of Medicine, Icahn School of Medicine, New York, NY, USA.,Department of Rehabilitation Medicine, Icahn School of Medicine, New York, NY, USA.,Department of Pharmacologic Science, Icahn School of Medicine, New York, NY, USA
| | - Ashraf S Gorgey
- Spinal Cord Injury and Disorders, Hunter Holmes McGuire VA Medical Center, Richmond, VA, USA. .,Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, VA, USA.
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25
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Noh JW, Jung JH, Park JE, Lee JH, Sim KH, Park J, Kim MH, Yoo KB. The relationship between age of onset and risk factors including family history and life style in Korean population with type 2 diabetes mellitus. J Phys Ther Sci 2018; 30:201-206. [PMID: 29545678 PMCID: PMC5851347 DOI: 10.1589/jpts.30.201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Accepted: 11/02/2017] [Indexed: 12/23/2022] Open
Abstract
[Purpose] The purpose of the present study was to assess the relationship between age of
onset and risk factors including family history and life style in Korean population with
type 2 diabetes mellitus (T2D). [Subjects and Methods] Subjects with T2D patients who
received outpatient care for blood sugar control were randomly sampled at 13 general
hospitals and 969 subjects were included. Cox proportional hazard models were used to
confirm associations between age of onset and risk factors including family history and
life style in Korean population with T2D. [Results] Parent history of T2D was
significantly associated with age of onset. Compared to none of family members with T2D,
those whose both father and mother had a history showed the highest the risk of
early-onset (HR=2.36; 95% CI=1.45–3.85). Mother and father’s history of T2D (HR=1.73; 95%
CI=1.46–2.05; HR=1.83; 95% CI=1.40–2.37) were associated with the risk of early-onset.
Moreover, exercise (HR=1.23, CI=1.08–1.40) smoking status (HR=1.62, CI=1.32–1.99), and
drinking (HR=1.32, CI=1.13–1.54) were associated with a higher risk for the early-onset.
[Conclusion] Family history as well as life style including exercise, smoking, and
drinking are the risk factors for early-onset factor in Korean population with T2D.
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Affiliation(s)
- Jin-Won Noh
- Department of Healthcare Management, College of Health Science, Eulji University: 553 Sansung-daero, Soojung-gu, Sungnam-si, Kyungki-do 461-815, Republic of Korea.,Department of Health Sciences, Global Health, University Medical Centre Groningen/University of Groningen, The Netherlands
| | - Jin Hee Jung
- Department of Nursing, Diabetes Education Team, Seoul National University Bundang Hospital, Republic of Korea
| | - Jeong Eun Park
- Cheil General Hospital & Women's Healthcare Center, College of Medicine, Dankook University, Republic of Korea
| | - Jung Hwa Lee
- Diabetes Center, Kyung Hee University Hospital at Gangdong, Republic of Korea
| | - Kang Hee Sim
- Diabetes Education Unit, Samsung Medical Center, Republic of Korea
| | - Jumin Park
- National Institutes of Health Clinical Center, USA
| | - Min Hee Kim
- Department of Physical Therapy, College of Health Science, Eulji University, Republic of Korea
| | - Ki-Bong Yoo
- Department of Healthcare Management, College of Health Science, Eulji University: 553 Sansung-daero, Soojung-gu, Sungnam-si, Kyungki-do 461-815, Republic of Korea
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Zachariah JP, Quiroz R, Enserro D, Andersson C, Keaney JF, Sullivan LM, Vasan RS. Association of Parental Obesity and Diabetes Mellitus With Circulating Adipokines in Nonobese Nondiabetic Offspring. J Am Heart Assoc 2017; 6:JAHA.116.004973. [PMID: 28713075 PMCID: PMC5586263 DOI: 10.1161/jaha.116.004973] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Background Adipokines are implicated in the development of obesity‐related traits. We hypothesized that nonobese participants without diabetes mellitus (DM) whose parents were obese or had DM would have altered circulating adipokines compared with those without parental history of these conditions. Methods and Results Participants in the community‐based Framingham Third Generation cohort who were not obese (body mass index <30) and not diabetic with both parents in the Framingham Offspring cohort were included in this analysis (n=2034, mean age 40 years, 54% women). Circulating concentrations of fetuin A, RBP4 (retinol binding protein 4), FABP4 (fatty acid binding protein 4), leptin, LEP‐R (leptin receptor), and adiponectin were assayed. Parental DM was defined as occurring before age 60 years, and obesity was defined as body mass index ≥30 before age 60 years. General estimating equations were used to compare concentrations of adipokines among participants with 0, 1, or 2 parents affected by obesity or DM (separate analyses for each), adjusting for known correlates of adipokines. Overall, 44% had at least 1 parent who was obese and 15% had parents with DM. Parental obesity was associated with higher serum levels of FABP4 and LEP‐R in their offspring (P=0.02 for both). Parental DM was associated with lower adiponectin but higher RBP4 concentrations in offspring (P≤0.02 for both). Conclusions In our community‐based sample, a parental history of DM or obesity was associated with an altered adipokine profile in nonobese nondiabetic offspring. Additional studies are warranted to evaluate whether such preclinical biomarker alterations presage future risk of disease.
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Affiliation(s)
- Justin P Zachariah
- Section of Pediatric Cardiology, Department of Pediatrics, Texas Children's Hospital Baylor College of Medicine, Houston, TX
| | - Rene Quiroz
- Cardiology Section, Boston University, Boston, MA
| | - Danielle Enserro
- Department of Biostatistics, Boston University School of Public Health, Boston, MA
| | | | - John F Keaney
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, MA
| | - Lisa M Sullivan
- Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA
| | - Ramachandran S Vasan
- Cardiology Section, Boston University, Boston, MA.,Preventive Medicine Section, Boston University, Boston, MA.,Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA.,Boston University's and the National Heart, Lung, and Blood Institute's Framingham Heart Study, Framingham, MA
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27
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Lekva T, Roland MCP, Michelsen AE, Friis CM, Aukrust P, Bollerslev J, Henriksen T, Ueland T. Large Reduction in Adiponectin During Pregnancy Is Associated With Large-for-Gestational-Age Newborns. J Clin Endocrinol Metab 2017; 102:2552-2559. [PMID: 28460045 DOI: 10.1210/jc.2017-00289] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 04/25/2017] [Indexed: 01/05/2023]
Abstract
CONTEXT Fetuses exposed to an obese intrauterine environment are more likely to be born large-for-gestational age (LGA) and are at increased risk of obesity in childhood and cardiovascular disease and/or type 2 diabetes mellitus as adults, but which factors that influence the intrauterine environment is less clear. OBJECTIVE To investigate the association between circulating levels of leptin and adiponectin, measured multiple times during pregnancy, and birth weight and prevalence of LGA or small-for-gestational-age infants. The association between birth weight and messenger RNA (mRNA) expression of adiponectin receptors and genes involved in nutrient transport in the placenta was also investigated. DESIGN Population-based prospective cohort [substudy of the STORK study (STORe barn og Komplikasjoner, translated as Large Babies and Complications)] from 2001 to 2008. SETTING University hospital. Patients or other participants: 300 women. MAIN OUTCOME MEASURES Oral glucose tolerance test was performed twice along with adiponectin and leptin levels measured four times during pregnancy. RESULTS Circulating adiponectin was lower in mothers who gave birth to LGA offspring or had fetuses with high intrauterine abdominal circumference late in pregnancy. Adiponectin decreased most from early to late pregnancy in mothers who gave birth to LGA offspring, and the decrease was an independent predictor of birth weight. Adiponectin receptor 2 and system A amino acid transporter mRNA expression in placentas was negatively correlated with birth weight and was lower in placentas from LGA infants. CONCLUSIONS Our findings suggest that maternal adiponectin may be an important predictor of fetal growth and birth weight, independent of body mass index and insulin resistance.
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Affiliation(s)
- Tove Lekva
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet, 0027 Oslo, Norway
| | - Marie Cecilie Paasche Roland
- Department of Obstetrics, Oslo University Hospital, Rikshospitalet, 0027 Oslo, Norway
- National Advisory Unit for Womens Health, Oslo University Hospital, Rikshospitalet, 0027 Oslo, Norway
| | - Annika E Michelsen
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet, 0027 Oslo, Norway
- Faculty of Medicine, University of Oslo, 0027 Oslo, Norway
| | | | - Pål Aukrust
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet, 0027 Oslo, Norway
- Faculty of Medicine, University of Oslo, 0027 Oslo, Norway
- Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Rikshospitalet, 0027 Oslo, Norway
- K.G. Jebsen Inflammatory Research Center, University of Oslo, 0027 Oslo, Norway
- K. G. Jebsen Thrombosis Research and Expertise Center, University of Tromsø, 9037 Tromsø, Norway
| | - Jens Bollerslev
- Faculty of Medicine, University of Oslo, 0027 Oslo, Norway
- Section of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital, Rikshospitalet, 0027 Oslo, Norway
| | - Tore Henriksen
- Department of Obstetrics, Oslo University Hospital, Rikshospitalet, 0027 Oslo, Norway
- Faculty of Medicine, University of Oslo, 0027 Oslo, Norway
| | - Thor Ueland
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet, 0027 Oslo, Norway
- Faculty of Medicine, University of Oslo, 0027 Oslo, Norway
- K. G. Jebsen Thrombosis Research and Expertise Center, University of Tromsø, 9037 Tromsø, Norway
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Zha D, Wu X, Gao P. Adiponectin and Its Receptors in Diabetic Kidney Disease: Molecular Mechanisms and Clinical Potential. Endocrinology 2017; 158:2022-2034. [PMID: 28402446 DOI: 10.1210/en.2016-1765] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 04/04/2017] [Indexed: 12/14/2022]
Abstract
Diabetic kidney disease (DKD) is a major complication for diabetic patients. Adiponectin is an insulin sensitizer and anti-inflammatory adipokine and is mainly secreted by adipocytes. Two types of adiponectin receptors, AdipoR1 and AdipoR2, have been identified. In both type 1 and type 2 diabetes (T2D) patients with DKD, elevated adiponectin serum levels have been observed, and adiponectin serum level is a prognostic factor of end-stage renal disease. Renal insufficiency and tubular injury possibly play a contributory role in increases in serum and urinary adiponectin levels in diabetic nephropathy by either increasing biodegradation or elimination of adiponectin in the kidneys, or enhancing production of adiponectin in adipose tissue. Increases in adiponectin levels resulted in amelioration of albuminuria, glomerular hypertrophy, and reduction of inflammatory response in kidney tissue. The renoprotection of adiponectin is associated with improvement of the endothelial dysfunction, reduction of oxidative stress, and upregulation of endothelial nitric oxide synthase expression through activation of adenosine 5'-monophosphate-activated protein kinase by AdipoR1 and activation of peroxisome proliferator-activated receptor (PPAR)-α signaling pathway by AdipoR2. Several single nucleotide polymorphisms in the AdipoQ gene, including the promoter, are associated with increased risk of the development of T2D and DKD. Renin-angiotensin-aldosterone system blockers, adiponectin receptor agonists, and PPAR agonists (e.g., tesaglitazar, thiazolidinediones, fenofibrate), which increase plasma adiponectin levels and adiponectin receptors expression, may be potential therapeutic drugs for the treatment of DKD.
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Affiliation(s)
- Dongqing Zha
- Division of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Xiaoyan Wu
- Division of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Ping Gao
- Division of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
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Ruscica M, Baragetti A, Catapano AL, Norata GD. Translating the biology of adipokines in atherosclerosis and cardiovascular diseases: Gaps and open questions. Nutr Metab Cardiovasc Dis 2017; 27:379-395. [PMID: 28237179 DOI: 10.1016/j.numecd.2016.12.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 12/14/2016] [Accepted: 12/16/2016] [Indexed: 01/10/2023]
Abstract
AIM Critically discuss the available data, to identify the current gaps and to provide key concepts that will help clinicians in translating the biology of adipokines in the context of atherosclerosis and cardio-metabolic diseases. DATA SYNTHESIS Adipose tissue is nowadays recognized as an active endocrine organ, a function related to the ability to secrete adipokines (such as leptin and adiponectin) and pro-inflammatory cytokines (tumor necrosis factor alpha and resistin). Studies in vitro and in animal models have observed that obesity status presents a chronic low-grade inflammation as the consequence of the immune cells infiltrating the adipose tissue as well as adipocytes. This inflammatory signature is often related to the presence of cardiovascular diseases, including atherosclerosis and thrombosis. These links are less clear in humans, where the role of adipokines as prognostic marker and/or player in cardiovascular diseases is not as clear as that observed in experimental models. Moreover, plasma adipokine levels might reflect a condition of adipokine-resistance in which adipokine redundancy occurs. The investigation of the cardio-metabolic phenotype of carriers of single nucleotide polymorphisms affecting the levels or function of a specific adipokine might help determine their relevance in humans. Thus, the aim of the present review is to critically discuss the available data, identify the current gaps and provide key concepts that will help clinicians translate the biology of adipokines in the context of atherosclerosis and cardio-metabolic diseases.
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Affiliation(s)
- M Ruscica
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - A Baragetti
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; SISA Center for the Study of Atherosclerosis, Bassini Hospital, Cinisello Balsamo, Italy
| | - A L Catapano
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; IRCCS Multimedica Hospital, Sesto San Giovanni, Milan, Italy
| | - G D Norata
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; SISA Center for the Study of Atherosclerosis, Bassini Hospital, Cinisello Balsamo, Italy; School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia.
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El husseny MWA, Mamdouh M, Shaban S, Ibrahim Abushouk A, Zaki MMM, Ahmed OM, Abdel-Daim MM. Adipokines: Potential Therapeutic Targets for Vascular Dysfunction in Type II Diabetes Mellitus and Obesity. J Diabetes Res 2017; 2017:8095926. [PMID: 28286779 PMCID: PMC5327767 DOI: 10.1155/2017/8095926] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/16/2017] [Indexed: 12/20/2022] Open
Abstract
Adipokines are bioactive molecules that regulate several physiological functions such as energy balance, insulin sensitization, appetite regulation, inflammatory response, and vascular homeostasis. They include proinflammatory cytokines such as adipocyte fatty acid binding protein (A-FABP) and anti-inflammatory cytokines such as adiponectin, as well as vasodilator and vasoconstrictor molecules. In obesity and type II diabetes mellitus (DM), insulin resistance causes impairment of the endocrine function of the perivascular adipose tissue, an imbalance in the secretion of vasoconstrictor and vasodilator molecules, and an increased production of reactive oxygen species. Recent studies have shown that targeting plasma levels of adipokines or the expression of their receptors can increase insulin sensitivity, improve vascular function, and reduce the risk of cardiovascular morbidity and mortality. Several reviews have discussed the potential of adipokines as therapeutic targets for type II DM and obesity; however, this review is the first to focus on their therapeutic potential for vascular dysfunction in type II DM and obesity.
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Affiliation(s)
- Mostafa Wanees Ahmed El husseny
- Faculty of Medicine, Fayoum University, Fayoum, Egypt
- NovaMed Medical Research Association, Cairo, Egypt
- Fayoum Medical Student Association, Fayoum, Egypt
| | | | - Sara Shaban
- Faculty of Medicine, Fayoum University, Fayoum, Egypt
| | | | | | - Osama M. Ahmed
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Mohamed M. Abdel-Daim
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt
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Wu YY, Zha Y, Liu J, Wang F, Xu J, Chen ZP, Ding HY, Sheng L, Han XJ. Effect of berberine on the ratio of high-molecular weight adiponectin to total adiponectin and adiponectin receptors expressions in high-fat diet fed rats. Chin J Integr Med 2016:10.1007/s11655-016-2518-x. [PMID: 27896586 DOI: 10.1007/s11655-016-2518-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To assess the effects of berberine (BBR) on high-molecular weight (HMW) adiponectin and adiponectin receptors (adipoR1/adipoR2) expressions in high-fat (HF) diet fed rats. METHODS Forty Wistar male rats were randomly assigned into a normal diet fed group and three HF diet (fat for 45% calories) fed groups (n=10 for each group). All rats underwent 12 weeks of feeding. After 4 weeks feeding, rats in the two of three HF diet fed groups were treated with 150 mg·kg-1·day-1 BBR (HF+LBBR group) and 380 mg·kg-1·day-1 BBR (HF+HBBR group) by gavage once a day respectively for the next 8 weeks while the rats in other groups treated with vehicle (NF+Veh and HF+Veh). Body weight and food intake were observed and recorded on daily basis. At the end of 12 weeks, the blood, liver, epididymal fat tissues and quadriceps femoris muscles were collected. Fasting insulin, plasma fasting glucose, serum free fatty acid (FFA), total adiponectin and HMW adiponectin levels were measured by enzyme linked immunosorbent assay method. Glucose tolerance test (GTT) and insulin tolerance test (ITT) were performed to determine the insulinsensitizing. Meanwhile the homeostasis model assessment (HOMA) method was used to determine insulin resistance (HOMA-IR). The expressions of adipoR1, adipoR2 and adenosine monophophate activated protein kinase (AMPK) phosphorylation level in skeletal muscle and liver tissue were detected by Western blot. Liver and kidney toxicity were evaluated during treatment. RESULTS The body weight of rats in high- or low-dose BBR group reduced as well as HOMA-IR, FFA concentrations and fasting insulin levels decreased compared with HF+Veh group (P<0.05). BBR also increased the ratio of HMW to total adiponectin in high fat-fed rats compared with rats in the HF+Veh group. High- and low-dose BBR increased adipoR1 expression in skeletal muscle by over 6- and 2-fold (P<0.05), respectively, and high-dose BBR also increased adipoR2 expression in liver tissue by over 2-fold (P<0.05). BBR significantly increased AMPK phosphorylation in HF diet rats compared with normal diet rats (P<0.05). The ratio of HMW to total adiponectin was inversely correlated with HOMA-IR (r=-0.52, P=0.001). Meantime, no liver and kidney toxicity was found in high fat-fed rats that treated by BBR. CONCLUSION Berberine may improve insulin resistance by increasing the expression of adiponectin receptors and the ratio of HMW to total adiponectin.
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Affiliation(s)
- Yue-Yue Wu
- Department of Endocrinology, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China
| | - Ying Zha
- Department of Endocrinology, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China
- Department of Science and Education, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China
| | - Jun Liu
- Department of Endocrinology, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China.
| | - Fang Wang
- Department of Endocrinology, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China
| | - Jiong Xu
- Department of Endocrinology, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China
| | - Zao-Ping Chen
- Department of Endocrinology, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China
| | - He-Yuan Ding
- Department of Endocrinology, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China
| | - Li Sheng
- Department of Endocrinology, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China
| | - Xiao-Jie Han
- Department of Science and Education, Shanghai Fifth People's Hospital Affiliated to Fudan University, Shanghai, 200240, China
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Roumaud P, Martin LJ. Roles of leptin, adiponectin and resistin in the transcriptional regulation of steroidogenic genes contributing to decreased Leydig cells function in obesity. Horm Mol Biol Clin Investig 2016; 24:25-45. [PMID: 26587746 DOI: 10.1515/hmbci-2015-0046] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 10/26/2015] [Indexed: 11/15/2022]
Abstract
The increase in obesity rate is a major public health issue associated with increased pathological conditions such as type 2 diabetes or cardiovascular diseases. Obesity also contributes to decreased testosterone levels in men. Indeed, the adipose tissue is an endocrine organ which produces hormones such as leptin, adiponectin and resistin. Obesity results in pathological accumulations of leptin and resistin, whereas adiponectin plasma levels are markedly reduced, all having a negative impact on testosterone synthesis. This review focuses on current knowledge related to transcriptional regulation of Leydig cells' steroidogenesis by leptin, adiponectin and resistin. We show that there are crosstalks between the regulatory mechanisms of these hormones and androgen production which may result in a dramatic negative influence on testosterone plasma levels. Indeed leptin, adiponectin and resistin can impact expression of different steroidogenic genes such as Star, Cyp11a1 or Sf1. Further investigations will be required to better define the implications of adipose derived hormones on regulation of steroidogenic genes expression within Leydig cells under physiological as well as pathological conditions.
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Iwabu M, Okada-Iwabu M, Yamauchi T, Kadowaki T. Adiponectin/adiponectin receptor in disease and aging. NPJ Aging Mech Dis 2015; 1:15013. [PMID: 28721260 PMCID: PMC5514982 DOI: 10.1038/npjamd.2015.13] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 09/13/2015] [Accepted: 09/29/2015] [Indexed: 02/06/2023] Open
Abstract
Adipocytes are not merely organs for energy conservation but endocrine organs secreting a wide array of physiologically active substances, i.e., adipokines. Of these adipokines, adiponectin is known to exert anti-diabetic and anti-atherosclerotic effects via adiponectin receptors (AdipoR)s, AdipoR1 and AdipoR2. Adiponectin has also recently been shown to regulate longevity signaling thus prolonging lifespan. Therefore, the strategy for activating adiponectin/AdipoR signaling pathways are expected to provide a solid basis for the prevention and treatment of obesity-related diseases such as the metabolic syndrome, type 2 diabetes and cardiovascular disease, as well as for ensuring healthy longevity in humans.
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Affiliation(s)
- Masato Iwabu
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,PRESTO, Japan Science and Technology Agency, Kawaguchi, Japan
| | - Miki Okada-Iwabu
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toshimasa Yamauchi
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,CREST, Japan Science and Technology Agency, Kawaguchi, Japan
| | - Takashi Kadowaki
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Hall A, Leuwer M, Trayhurn P, Welters ID. Lipopolysaccharide induces a downregulation of adiponectin receptors in-vitro and in-vivo. PeerJ 2015; 3:e1428. [PMID: 26618091 PMCID: PMC4655095 DOI: 10.7717/peerj.1428] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 11/02/2015] [Indexed: 11/20/2022] Open
Abstract
Background. Adipose tissue contributes to the inflammatory response through production of cytokines, recruitment of macrophages and modulation of the adiponectin system. Previous studies have identified a down-regulation of adiponectin in pathologies characterised by acute (sepsis and endotoxaemia) and chronic inflammation (obesity and type-II diabetes mellitus). In this study, we investigated the hypothesis that LPS would reduce adiponectin receptor expression in a murine model of endotoxaemia and in adipoocyte and myocyte cell cultures. Methods. 25 mg/kg LPS was injected intra-peritoneally into C57BL/6J mice, equivalent volumes of normal saline were used in control animals. Mice were killed at 4 or 24 h post injection and tissues harvested. Murine adipocytes (3T3-L1) and myocytes (C2C12) were grown in standard culture, treated with LPS (0.1 µg/ml–10 µg/ml) and harvested at 4 and 24 h. RNA was extracted and qPCR was conducted according to standard protocols and relative expression was calculated. Results. After LPS treatment there was a significant reduction after 4 h in gene expression of adipo R1 in muscle and peri-renal fat and of adipo R2 in liver, peri-renal fat and abdominal wall subcutaneous fat. After 24 h, significant reductions were limited to muscle. Cell culture extracts showed varied changes with reduction in adiponectin and adipo R2 gene expression only in adipocytes. Conclusions. LPS reduced adiponectin receptor gene expression in several tissues including adipocytes. This reflects a down-regulation of this anti-inflammatory and insulin-sensitising pathway in response to LPS. The trend towards base line after 24 h in tissue depots may reflect counter-regulatory mechanisms. Adiponectin receptor regulation differs in the tissues investigated.
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Affiliation(s)
- Alison Hall
- Department of Critical Care, Royal Liverpool University Hospital, Liverpool, Obesity Biology Research Unit, University of Liverpool , Liverpool , United Kingdom
| | - Martin Leuwer
- Department of Molecular & Clinical Pharmacology, University of Liverpool , Liverpool , United Kingdom
| | - Paul Trayhurn
- Obesity Biology Research Unit, University of Liverpool , Liverpool , United Kingdom ; Clore Laboratory, University of Buckingham , Buckingham , United Kingdom ; College of Science, King Saud University , Riyadh , Saudi Arabia
| | - Ingeborg D Welters
- Department of Ageing and Chronic Disease, University of Liverpool , Liverpool , United Kingdom ; Department of Critical Care, Royal Liverpool University Hospital , Liverpool , United Kingdom
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Coletta DK, Fernandez M, Cersosimo E, Gastaldelli A, Musi N, DeFronzo RA. The effect of muraglitazar on adiponectin signalling, mitochondrial function and fat oxidation genes in human skeletal muscle in vivo. Diabet Med 2015; 32:657-64. [PMID: 25484175 PMCID: PMC6824198 DOI: 10.1111/dme.12664] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/02/2014] [Indexed: 01/13/2023]
Abstract
AIMS The molecular mechanisms by which muraglitazar (peroxisome proliferator-activated receptor γ/α agonist) improves insulin sensitivity in Type 2 diabetes mellitus are not fully understood. We hypothesized that muraglitazar would increase expression of 5'-monophosphate-activated protein kinase and genes involved in adiponectin signalling, free fatty acid oxidation and mitochondrial function in skeletal muscle. METHODS Sixteen participants with Type 2 diabetes received muraglitazar, 5 mg/day (n = 12) or placebo (n = 4). Before and after 16 weeks, participants had vastus lateralis muscle biopsy followed by 180 min euglycaemic hyperinsulinaemic clamp. RESULTS Muraglitazar increased plasma adiponectin (9.0 ± 1.1 to 17.8 ± 1.5 μg/ml, P < 0.05), while no significant change was observed with placebo. After 16 weeks with muraglitazar, fasting plasma glucose declined by 31%, fasting plasma insulin decreased by 44%, insulin-stimulated glucose disposal increased by 81%, HbA1c decreased by 21% and plasma triglyceride decreased by 39% (all P < 0.05). Muraglitazar increased mRNA levels of 5'-monophosphate-activated protein kinase, adiponectin receptor 1, adiponectin receptor 2, peroxisome proliferator-activated receptor gamma coactivator-1 alpha and multiple genes involved in mitochondrial function and fat oxidation. In the placebo group, there were no significant changes in expression of these genes. CONCLUSIONS Muraglitazar increases plasma adiponectin, stimulates muscle 5'-monophosphate-activated protein kinase expression and increases expression of genes involved in adiponectin signalling, mitochondrial function and fat oxidation. These changes represent important cellular mechanisms by which dual peroxisome proliferator-activated receptor agonists improve skeletal muscle insulin sensitivity.
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Affiliation(s)
- D K Coletta
- Mayo Clinic in Arizona, Scottsdale; School of Life Sciences, Arizona State University, Tempe; Department of Basic Medical Sciences, University of Arizona College of Medicine - Phoenix
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Rider JR, Fiorentino M, Kelly R, Gerke T, Jordahl K, Sinnott JA, Giovannucci EL, Loda M, Mucci LA, Finn S. Tumor expression of adiponectin receptor 2 and lethal prostate cancer. Carcinogenesis 2015; 36:639-47. [PMID: 25863129 DOI: 10.1093/carcin/bgv048] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 04/05/2015] [Indexed: 01/01/2023] Open
Abstract
To investigate the role of adiponectin receptor 2 (AdipoR2) in aggressive prostate cancer we used immunohistochemistry to characterize AdipoR2 protein expression in tumor tissue for 866 men with prostate cancer from the Physicians' Health Study and the Health Professionals Follow-up Study. AdipoR2 tumor expression was not associated with measures of obesity, pathological tumor stage or prostate-specific antigen (PSA) at diagnosis. However, AdipoR2 expression was positively associated with proliferation as measured by Ki-67 expression quartiles (P-trend < 0.0001), with expression of fatty acid synthase (P-trend = 0.001), and with two measures of angiogenesis (P-trend < 0.1). An inverse association was observed with apoptosis as assessed by the TUNEL assay (P-trend = 0.006). Using Cox proportional hazards regression and controlling for age at diagnosis, Gleason score, year of diagnosis category, cohort and baseline BMI, we identified a statistically significant trend for the association between quartile of AdipoR2 expression and lethal prostate cancer (P-trend = 0.02). The hazard ratio for lethal prostate cancer for the two highest quartiles, as compared to the two lowest quartiles, of AdipoR2 expression was 1.9 (95% confidence interval [CI]: 1.2-3.0). Results were similar when additionally controlling for categories of PSA at diagnosis and Ki-67 expression quartiles. These results strengthen the evidence for the role of AdipoR2 in prostate cancer progression.
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Affiliation(s)
- Jennifer R Rider
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA,
| | - Michelangelo Fiorentino
- Pathology Unit, Addarii Institute of Oncology, S. Orsola-Malphighi Hospital, 40126 Bologna, Italy
| | - Rachel Kelly
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA, Pathology Unit, Addarii Institute of Oncology, S. Orsola-Malphighi Hospital, 40126 Bologna, Italy, Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA, Department of Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA and Department of Pathology, Trinity College Dublin, Dublin 8, Ireland
| | - Travis Gerke
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA, Pathology Unit, Addarii Institute of Oncology, S. Orsola-Malphighi Hospital, 40126 Bologna, Italy, Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA, Department of Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA and Department of Pathology, Trinity College Dublin, Dublin 8, Ireland
| | - Kristina Jordahl
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA, Pathology Unit, Addarii Institute of Oncology, S. Orsola-Malphighi Hospital, 40126 Bologna, Italy, Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA, Department of Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA and Department of Pathology, Trinity College Dublin, Dublin 8, Ireland
| | - Jennifer A Sinnott
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA, Pathology Unit, Addarii Institute of Oncology, S. Orsola-Malphighi Hospital, 40126 Bologna, Italy, Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA, Department of Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA and Department of Pathology, Trinity College Dublin, Dublin 8, Ireland
| | - Edward L Giovannucci
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Massimo Loda
- Department of Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA and
| | - Lorelei A Mucci
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Stephen Finn
- Department of Pathology, Trinity College Dublin, Dublin 8, Ireland
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Landry D, Paré A, Jean S, Martin LJ. Adiponectin influences progesterone production from MA-10 Leydig cells in a dose-dependent manner. Endocrine 2015; 48:957-67. [PMID: 25338202 DOI: 10.1007/s12020-014-0456-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 10/13/2014] [Indexed: 12/28/2022]
Abstract
Obesity in men is associated with lower testosterone levels, related to reduced sperm concentration and the development of various diseases with aging. Hormones produced by the adipose tissue may have influences on both metabolism and reproductive function. Among them, the production and secretion of adiponectin is inversely correlated to total body fat. Adiponectin receptors (AdipoR1 and AdipoR2) have been found to be expressed in testicular Leydig cells (producing testosterone). Since StAR and Cyp11a1 are essential for testosterone synthesis and adiponectin has been shown to regulate StAR mRNA in swine granulosa cells, we hypothesized that adiponectin might also regulate these genes in Leydig cells. Our objective was to determine whether adiponectin regulates StAR and Cyp11a1 genes in Leydig cells and to better define its mechanisms of action. Methods used in the current study are qPCR for the mRNA levels, transfections for promoter activities, and enzyme-linked immunosorbent assay for the progesterone concentration. We have found that adiponectin cooperates with cAMP-dependent stimulation to activate StAR and Cyp11a1 mRNA expressions in a dose-dependent manner in MA-10 Leydig cells as demonstrated by transfection of a luciferase reporter plasmid. These results led to a significant increase in progesterone production from MA-10 cells. Thus, our data suggest that high doses of adiponectin typical of normal body weight may promote testosterone production from Leydig cells.
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Affiliation(s)
- David Landry
- Biology Department, Université de Moncton, 18, avenue Antonine Maillet, Moncton, NB, E1A 3E9, Canada
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Winnier DA, Fourcaudot M, Norton L, Abdul-Ghani MA, Hu SL, Farook VS, Coletta DK, Kumar S, Puppala S, Chittoor G, Dyer TD, Arya R, Carless M, Lehman DM, Curran JE, Cromack DT, Tripathy D, Blangero J, Duggirala R, Göring HHH, DeFronzo RA, Jenkinson CP. Transcriptomic identification of ADH1B as a novel candidate gene for obesity and insulin resistance in human adipose tissue in Mexican Americans from the Veterans Administration Genetic Epidemiology Study (VAGES). PLoS One 2015; 10:e0119941. [PMID: 25830378 PMCID: PMC4382323 DOI: 10.1371/journal.pone.0119941] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 02/04/2015] [Indexed: 01/01/2023] Open
Abstract
Type 2 diabetes (T2D) is a complex metabolic disease that is more prevalent in ethnic groups such as Mexican Americans, and is strongly associated with the risk factors obesity and insulin resistance. The goal of this study was to perform whole genome gene expression profiling in adipose tissue to detect common patterns of gene regulation associated with obesity and insulin resistance. We used phenotypic and genotypic data from 308 Mexican American participants from the Veterans Administration Genetic Epidemiology Study (VAGES). Basal fasting RNA was extracted from adipose tissue biopsies from a subset of 75 unrelated individuals, and gene expression data generated on the Illumina BeadArray platform. The number of gene probes with significant expression above baseline was approximately 31,000. We performed multiple regression analysis of all probes with 15 metabolic traits. Adipose tissue had 3,012 genes significantly associated with the traits of interest (false discovery rate, FDR ≤ 0.05). The significance of gene expression changes was used to select 52 genes with significant (FDR ≤ 10(-4)) gene expression changes across multiple traits. Gene sets/Pathways analysis identified one gene, alcohol dehydrogenase 1B (ADH1B) that was significantly enriched (P < 10(-60)) as a prime candidate for involvement in multiple relevant metabolic pathways. Illumina BeadChip derived ADH1B expression data was consistent with quantitative real time PCR data. We observed significant inverse correlations with waist circumference (2.8 x 10(-9)), BMI (5.4 x 10(-6)), and fasting plasma insulin (P < 0.001). These findings are consistent with a central role for ADH1B in obesity and insulin resistance and provide evidence for a novel genetic regulatory mechanism for human metabolic diseases related to these traits.
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Affiliation(s)
- Deidre A. Winnier
- Division of Diabetes, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
| | - Marcel Fourcaudot
- Division of Diabetes, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
| | - Luke Norton
- Division of Diabetes, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
| | - Muhammad A. Abdul-Ghani
- Division of Diabetes, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
| | - Shirley L. Hu
- Division of Nephrology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
| | - Vidya S. Farook
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
| | - Dawn K. Coletta
- School of Life Sciences, Arizona State University, Tempe, AZ, United States of America
| | - Satish Kumar
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
| | - Sobha Puppala
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
| | - Geetha Chittoor
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
| | - Thomas D. Dyer
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
| | - Rector Arya
- Division of Endocrinology and Diabetes, Department of Pediatrics, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
| | - Melanie Carless
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
| | - Donna M. Lehman
- Division of Clinical Epidemiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
| | - Joanne E. Curran
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
| | - Douglas T. Cromack
- Division of Orthopedics, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
- South Texas Veterans Health Care System, San Antonio, TX, United States of America
| | - Devjit Tripathy
- Division of Diabetes, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
- South Texas Veterans Health Care System, San Antonio, TX, United States of America
| | - John Blangero
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
| | | | - Harald H. H. Göring
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
| | - Ralph A. DeFronzo
- Division of Diabetes, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
- South Texas Veterans Health Care System, San Antonio, TX, United States of America
| | - Christopher P. Jenkinson
- Division of Diabetes, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States of America
- Texas Biomedical Research Institute, San Antonio, TX, United States of America
- South Texas Veterans Health Care System, San Antonio, TX, United States of America
- * E-mail:
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Khodyrev DS, Nikitin AG, Brovkin AN, Lavrikova EY, Lebedeva NO, Vikulova OK, Shamkhalova MS, Shestakova MV, Nosikov VV, Averyanov AV. Association of polymorphisms of the ADIPOQ, ADIPOR1 and ADIPOR2 genes with type 2 diabetes mellitus. DIABETES MELLITUS 2015. [DOI: 10.14341/dm201525-11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The study of hereditary predisposition to multifactorial diseases is essential for diagnosis and selection of the optimal treatment. The study of polymorphisms of candidate genes whose products are involved in the pathogenesis of multifactorial diseases is of great clinical importance. Aim. The aim of this study was to investigate the association of rs2241766 and rs1501299 polymorphisms in the ADIPOQ gene, rs2275737 and rs2275738 polymorphisms in the ADIPOR1 gene and rs11061971 and rs16928751 polymorphisms in the ADIPOR2 gene with the development of type 2 diabetes mellitus (T2DM) in the Russian population. Materials and methods. The study included a group of 500 patients with T2DM diagnosed based on standard diagnostic criteria (T2DM+). The control group (T2DM-) was a random sample of 500 patients with no evidence of the disease and was matched to the T2DM+ group for gender, age and body mass index. The determination of alleles and genotypes was performed using real-time polymerase chain reaction with TaqMan probes. The X2 test and contingency tables were used to compare the distribution of allele and genotype frequencies. A p-value of
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Schwartz C, Hampton M, Andrews MT. Hypothalamic gene expression underlying pre-hibernation satiety. GENES BRAIN AND BEHAVIOR 2015; 14:310-8. [PMID: 25640202 DOI: 10.1111/gbb.12199] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 12/16/2014] [Accepted: 12/22/2014] [Indexed: 11/30/2022]
Abstract
Prior to hibernation, 13-lined ground squirrels (Ictidomys tridecemlineatus) enter a hypophagic period where food consumption drops by an average of 55% in 3 weeks. This occurs naturally, while the ground squirrels are in constant environmental conditions and have free access to food. Importantly, this transition occurs before exposure to hibernation conditions (5°C and constant darkness), so the ground squirrels are still maintaining a moderate level of activity. In this study, we used the Illumina HiSeq 2000 system to sequence the hypothalamic transcriptomes of ground squirrels before and after the autumn feeding transition to examine the genes underlying this extreme change in feeding behavior. The hypothalamus was chosen because it is known to play a role in the control and regulation of food intake and satiety. Overall, our analysis identified 143 genes that are significantly differentially expressed between the two groups. Specifically, we found five genes associated with feeding behavior and obesity (VGF, TRH, LEPR, ADIPOR2, IRS2) that are all upregulated during the hypophagic period, after the feeding transition has occurred. We also found that serum leptin significantly increases in the hypophagic group. Several of the genes associated with the natural autumnal feeding decline in 13-lined ground squirrels show parallels to signaling pathways known to be disrupted in human metabolic diseases, like obesity and diabetes. In addition, many other genes were identified that could be important for the control of food consumption in other animals, including humans.
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Affiliation(s)
- C Schwartz
- Department of Biology, University of Minnesota Duluth, Duluth, MN, USA
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Adya R, Tan BK, Randeva HS. Differential effects of leptin and adiponectin in endothelial angiogenesis. J Diabetes Res 2015; 2015:648239. [PMID: 25650072 PMCID: PMC4310451 DOI: 10.1155/2015/648239] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 12/22/2014] [Indexed: 12/11/2022] Open
Abstract
Obesity is a major health burden with an increased risk of cardiovascular morbidity and mortality. Endothelial dysfunction is pivotal to the development of cardiovascular disease (CVD). In relation to this, adipose tissue secreted factors termed "adipokines" have been reported to modulate endothelial dysfunction. In this review, we focus on two of the most abundant circulating adipokines, that is, leptin and adiponectin, in the development of endothelial dysfunction. Leptin has been documented to influence a multitude of organ systems, that is, central nervous system (appetite regulation, satiety factor) and cardiovascular system (endothelial dysfunction leading to atherosclerosis). Adiponectin, circulating at a much higher concentration, exists in different molecular weight forms, essentially made up of the collagenous fraction and a globular domain, the latter being investigated minimally for its involvement in proinflammatory processes including activation of NF-κβ and endothelial adhesion molecules. The opposing actions of the two forms of adiponectin in endothelial cells have been recently demonstrated. Additionally, a local and systemic change to multimeric forms of adiponectin has gained importance. Thus detailed investigations on the potential interplay between these adipokines would likely result in better understanding of the missing links connecting CVD, adipokines, and obesity.
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Affiliation(s)
- Raghu Adya
- Division of Translational and Systems Medicine-Metabolic and Vascular Health, Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- *Raghu Adya:
| | - Bee K. Tan
- Division of Translational and Systems Medicine-Metabolic and Vascular Health, Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Department of Obstetrics and Gynaecology, Birmingham Heartlands Hospital, Birmingham B9 5SS, UK
| | - Harpal S. Randeva
- Division of Translational and Systems Medicine-Metabolic and Vascular Health, Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
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Marette A, Liu Y, Sweeney G. Skeletal muscle glucose metabolism and inflammation in the development of the metabolic syndrome. Rev Endocr Metab Disord 2014; 15:299-305. [PMID: 25326656 DOI: 10.1007/s11154-014-9296-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Insulin resistance and metabolic dysfunction in skeletal muscle play a major role in the development of the metabolic syndrome and type 2 diabetes. Numerous mechanisms have been proposed to explain the pathophysiology of obesity-linked metabolic dysfunction and this review will focus on the contributing role of adiponectin and inflammation. The beneficial effects of adiponectin on both insulin action and inflammation are now well documented and will be reviewed. More recent work provided new insights into adiponectin signaling mechanisms. The development of strategies to mimic adiponectin action holds promise that adiponectin-based compounds may translate into effective therapeutic applications. We will also discussed the novel role of long chain ω-3 PUFA-derived resolution mediators, which in addition to resolving inflammation, can also exert glucoregulatory effects in models of obesity and insulin resistance. We will focus on one resolution mediator, protectin DX (PDX), which was recently shown to act as a muscle interleukin-6 secretagogue. PDX and its isomer PD1 also enhance adiponectin expression and action. Ultimately, it is via a better understanding the molecular mechanisms of action via which inflammation, insulin resistance and metabolic dysfunction occur in skeletal muscle, and also how they crosstalk with each other, that we can generate new and improved therapies for obesity-linked metabolic complications.
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Affiliation(s)
- André Marette
- Department of Medicine, Faculty of Medicine and Heart and Lung Institute, Laval University, Québec, QC, Canada,
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Wang L, Tian Y, Mei X, Han R, Li G, Kang X. SNPs in the adiponectin receptor 2 gene and their associations with chicken performance traits. Anim Biotechnol 2014; 26:1-7. [PMID: 25153449 DOI: 10.1080/10495398.2013.862254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The adiponectin receptor 2 (ADIPOR2) is a receptor for both globular and full-length adiponectin. In the current study, two genetic variations in ADIPOR2 gene were identified in an F2 resource population of Gushi chicken and Anka broiler. Association analysis between the two SNPs and chicken performance traits were determined using the linear mixed model. The data revealed that the g.34490C > T mutation in intron 3 was significantly associated with liver weight and globulin, the g.35363T > C polymorphism in exon 5 was significantly associated with body weights at 6, 10, and 12 weeks of age. Both polymorphisms have no significant effects on serum glucose and fat-related traits. The g.34490C > T mutation might play an important role in regulating liver weight. The g.35363T > C polymorphism does contribute in a significant manner to growth traits at the medium and later development stage but it is uncertain whether it could be a molecular marker for liver disease.
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Affiliation(s)
- Lele Wang
- a College of Animal Science and Veterinary Medicine , Henan Agricultural University , Zhengzhou , China
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44
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Martin LJ. Implications of adiponectin in linking metabolism to testicular function. Endocrine 2014; 46:16-28. [PMID: 24287788 DOI: 10.1007/s12020-013-0102-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 10/23/2013] [Indexed: 12/16/2022]
Abstract
Obesity is a major health problem, contributing to the development of various diseases with aging. In humans, obesity has been associated with reduced testosterone production and subfertility. Adipose tissue is an important source of hormones having influences on both metabolism and reproduction. Among them, the production and secretion of adiponectin is inversely correlated to the severity of obesity. The purpose of this review of literature is to present the current state of knowledge on adiponectin research to determine whether this hormone affects reproduction in men. Surprisingly, evidences show negative influences of adiponectin on GnRH secretion from the hypothalamus, LH and FSH secretion from the pituitary and testosterone at the testicular level. Thus far, the involvement of adiponectin in the influence of metabolism on reproduction in men is limited. However, adiponectin and its receptors are expressed by different cell types of the male gonad, including Leydig cells, spermatozoa, and epididymis. In addition, actions of adiponectin at the testicular level have been shown to promote spermatogenesis and sperm maturation. Therefore, autocrine/paracrine actions of adiponectin in the testis may contribute to support male reproductive function.
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Affiliation(s)
- Luc J Martin
- Biology Department, Université de Moncton, 18, Avenue Antonine Maillet, Moncton, NB, E1A 3E9, Canada,
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45
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Qin C, Wang B, Sun C, Jia J, Li W. Orange-spotted grouper (Epinephelus coioides) adiponectin receptors: molecular characterization, mRNA expression, and subcellular location. Gen Comp Endocrinol 2014; 198:47-58. [PMID: 24406511 DOI: 10.1016/j.ygcen.2013.12.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 12/15/2013] [Accepted: 12/22/2013] [Indexed: 11/25/2022]
Abstract
Adiponectin is an abundantly secreted adipokine from adipose tissue in mammals, which plays important roles in the regulation of glucose and lipid metabolism. The biological function of adiponectin is mediated by at least two receptors (AdipoR1 and AdipoR2). Although both of them were identified in mammals, there are few researches about adiponectin and its receptors in teleosts. In this study, two types of adiponectin receptors have been isolated and characterized in the orange-spotted grouper (Epinephelus coioides). The cDNAs of grouper AdipoR1 and AdipoR2 are 1444 and 2034 bp in length, encoding proteins of 376 amino acids and 375 amino acids, respectively. Multiple alignment results showed that there was a variable region at the N-terminal of AdipoR1/R2, which has never been reported. Both AdipoR1 and AdipoR2 were found to be widely expressed in various tissues of grouper. Compared to AdipoR2, AdipoR1 expressed at higher levels in the nervous system and pituitary gland, but at lower levels in some peripheral tissues, including heart, liver, adipose tissue, stomach, intestine and especially gonad. Fasting and refeeding experiments showed that the mRNA expressions of AdipoR1/R2 were up-regulated by fasting in the muscle and adipose tissue of grouper, and restored rapidly to normal levels after refeeding. However, the mRNA expressions of AdipoR1/R2 in the hypothalamus and liver of grouper were insensitive to fasting. By indirect immunofluorescence, we demonstrated that grouper AdipoR1/R2 were integral membrane proteins; the C-terminals were extracellular, while the N-terminals were intracellular.
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Affiliation(s)
- Chaobin Qin
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou, PR China
| | - Bin Wang
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou, PR China
| | - Caiyun Sun
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou, PR China
| | - Jirong Jia
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou, PR China
| | - Wensheng Li
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou, PR China.
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46
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Single-nucleotide polymorphisms in adiponectin, AdipoR1, and AdipoR2 genes: insulin resistance and type 2 diabetes mellitus candidate genes. Am J Ther 2014; 20:414-21. [PMID: 23656997 DOI: 10.1097/mjt.0b013e318235f206] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
It has already been a decade and a half since the discovery of adiponectin and its role as an insulin sensitizer and only 7 years since its receptors, AdipoR1 and AdipoR2, were described. A single-nucleotide polymorphism (SNP) is a DNA sequence variation that affects only one nucleotide; it may vary from one population to another with different predisposing factors to diseases and other ailments. Once some of the effects of adiponectin and its receptors were known, it was not long until an effort was made to find the associations between specific SNPs of the genes of this hormone and its receptors as genetic risk factors for insulin resistance, type 2 diabetes mellitus, and metabolic syndrome, although these genes were investigated as possible candidates related to the development of these metabolic disorders. All of these possible associations were studied in different populations from France, Finland, the United Kingdom, North America, and Japan, showing hardly concluding results, and because of that it is highly controversial to directly associate one of the genes mentioned above to insulin resistance, type 2 diabetes mellitus, and metabolic syndrome. All of these inconsistencies lead to a review that summarizes the SNPs of the genes of adiponectin, AdipoR1, and AdipoR2 that are mostly related to insulin resistance syndrome, type 2 diabetes mellitus, and metabolic syndrome, although presenting the possible factors that should be taken into account to homogenize the results obtained until now.
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47
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Lim S, Quon MJ, Koh KK. Modulation of adiponectin as a potential therapeutic strategy. Atherosclerosis 2014; 233:721-728. [PMID: 24603219 DOI: 10.1016/j.atherosclerosis.2014.01.051] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 01/26/2014] [Accepted: 01/27/2014] [Indexed: 12/22/2022]
Abstract
Adiponectin is produced predominantly by adipocytes and plays an important role in metabolic and cardiovascular homeostasis through its insulin-sensitizing actions and anti-inflammatory and anti-atherogenic properties. Recently, it has been observed that lower levels of adiponectin can substantially increase the risk of developing type 2 diabetes, metabolic syndrome, atherosclerosis, and cardiovascular disease in patients who are obese. Circulating adiponectin levels are inversely related to the inflammatory process, oxidative stress, and metabolic dysregulation. Intensive lifestyle modifications and pharmacologic agents, including peroxisome proliferator-activated receptor-γ or α agonists, some statins, renin-angiotensin-aldosterone system blockers, some calcium channel blockers, mineralocorticoid receptor blockers, new β-blockers, and several natural compounds can increase adiponectin levels and suppress or prevent disease initiation or progression, respectively, in cardiovascular and metabolic disorders. Therefore, it is important for investigators to have a thorough understanding of the interventions that can modulate adiponectin. Such knowledge may lead to new therapeutic approaches for diseases such as type 2 diabetes, metabolic syndrome, cardiovascular disease, and obesity. This review focuses on recent updates regarding therapeutic interventions that might modulate adiponectin.
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Affiliation(s)
- Soo Lim
- Division of Endocrinology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Michael J Quon
- Department of Medicine, Division of Endocrinology, Diabetes and Nutrition, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Kwang Kon Koh
- Cardiology, Gachon University Gil Medical Center, Incheon, Republic of Korea; Gachon Cardiovascular Research Institute, Incheon, Republic of Korea.
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Lustig Y, Barhod E, Ashwal-Fluss R, Gordin R, Shomron N, Baruch-Umansky K, Hemi R, Karasik A, Kanety H. RNA-binding protein PTB and microRNA-221 coregulate AdipoR1 translation and adiponectin signaling. Diabetes 2014; 63:433-45. [PMID: 24130336 DOI: 10.2337/db13-1032] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Adiponectin receptor 1 (AdipoR1) mediates adiponectin's pleiotropic effects in muscle and liver and plays an important role in the regulation of insulin resistance and diabetes. Here, we demonstrate a pivotal role for microRNA-221 (miR-221) and the RNA-binding protein polypyrimidine tract-binding protein (PTB) in posttranscriptional regulation of AdipoR1 during muscle differentiation and in obesity. RNA-immunoprecipitation and luciferase reporter assays illustrated that both PTB and miR-221 bind AdipoR1-3'UTR and cooperatively inhibit AdipoR1 translation. Depletion of PTB or miR-221 increased, while overexpression of these factors decreased, AdipoR1 protein synthesis in both muscle and liver cells. During myogenesis, downregulation of PTB and miR-221 robustly induced AdipoR1 translation, providing a mechanism for enhanced AdipoR1 protein expression and activation in differentiated muscle cells. In addition, since both PTB and miR-221 are upregulated in liver and muscle of genetic and dietary mouse models of obesity, this novel translational mechanism may be at least partly responsible for the reduction in AdipoR1 protein levels in obesity. These findings highlight the importance of translational control in regulating AdipoR1 protein expression and adiponectin signaling. Given that adiponectin is reduced in obesity, induction of AdipoR1 could potentially enhance adiponectin beneficial effects and ameliorate insulin resistance and diabetes.
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Affiliation(s)
- Yaniv Lustig
- Institute of Endocrinology, Chaim Sheba Medical Center, Tel-Hashomer, Israel
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49
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Aslibekyan S, An P, Frazier-Wood AC, Kabagambe EK, Irvin MR, Straka RJ, Tiwari HK, Tsai MY, Hopkins PN, Borecki IB, Ordovas JM, Arnett DK. Preliminary evidence of genetic determinants of adiponectin response to fenofibrate in the Genetics of Lipid Lowering Drugs and Diet Network. Nutr Metab Cardiovasc Dis 2013; 23:987-994. [PMID: 23149075 PMCID: PMC3578131 DOI: 10.1016/j.numecd.2012.07.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2012] [Revised: 07/27/2012] [Accepted: 07/27/2012] [Indexed: 01/13/2023]
Abstract
BACKGROUND AND AIMS Adiponectin is an adipose-secreted protein that has been linked to changes in insulin sensitivity, high-density lipoprotein cholesterol levels, and inflammatory patterns. Although fenofibrate therapy can raise adiponectin levels, treatment response is heterogeneous and heritable, suggesting a role for genetic mediators. This is the first genome-wide association study of fenofibrate effects on circulating adiponectin. METHODS AND RESULTS Plasma adiponectin was measured in participants of the Genetics of Lipid Lowering Drugs and Diet Network (n = 793) before and after a 3-week daily treatment with 160 mg of fenofibrate. Associations between variants on the Affymetrix Genome-Wide Human SNP Array 6.0 and adiponectin were assessed using mixed linear models, adjusted for age, sex, site, and family. We observed a statistically significant (P = 5 × 10⁻⁸) association between rs2384207 in 12q24, a region previously linked to several metabolic traits, and the fenofibrate-induced change in circulating adiponectin. Additionally, our genome-wide analysis of baseline adiponectin levels replicated the previously reported association with CDH13 and suggested novel associations with markers near the PCK1, ZBP1, TMEM18, and SCUBE1 genes. The findings from the single marker tests were corroborated in gene-based analyses. Biological pathway analyses suggested a borderline significant association between the EGF receptor signaling pathway and baseline adiponectin levels. CONCLUSIONS We present preliminary evidence linking several biologically relevant genetic variants to adiponectin levels at baseline and in response to fenofibrate therapy. Our findings provide support for fine-mapping of the 12q24 region to investigate the shared biological mechanisms underlying levels of circulating adiponectin and susceptibility to metabolic disease.
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Affiliation(s)
- S Aslibekyan
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, RPHB 217G, Birmingham, AL 35294, USA.
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50
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Ding C, Li L, Su YC, Xiang RL, Cong X, Yu HK, Li SL, Wu LL, Yu GY. Adiponectin increases secretion of rat submandibular gland via adiponectin receptors-mediated AMPK signaling. PLoS One 2013; 8:e63878. [PMID: 23667684 PMCID: PMC3646765 DOI: 10.1371/journal.pone.0063878] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Accepted: 04/10/2013] [Indexed: 01/16/2023] Open
Abstract
Adiponectin and adiponectin receptors (AdipoR1/2) are expressed in various tissues and are involved in the regulation of multiple functions such as energy metabolism and inflammatory responses. However, the effect of adiponectin and AdipoRs in submandibular glands has not been fully evaluated. In the present study, we found that mRNA and protein of both adiponectin and AdipoR1/2 were expressed in rat submandibular glands and in the SMG-C6 cell line, as evidenced by RT-PCR and Western blot analysis. Immunofluorescence staining showed that adiponectin was diffused in the cytoplasm, while AdipoR1/2 was concentrated in the membrane of acinar cells. Saliva flow was significantly increased by full length adiponectin (fAd) or globular adiponectin (gAd) perfusion in isolated rat submandibular glands. 5-Aminoimidazole-4-carboxamide-1-4-ribofuranoside (AICAR), an adenosine monophosphate activated protein kinase (AMPK) activator, also increased saliva secretion. fAd, gAd, and AICAR all increased the average width of apical tight junctions in perfused submandibular glands, and decreased transepithelial electrical resistance (TER) in SMG-C6 cells, suggesting that adiponectin promoted secretion by modulating paracellular permeability. fAd and gAd increased p-AMPK levels, while AraA, an AMPK antagonist, abolished fAd- and gAd-induced changes in secretion, tight junction ultrastructure, and TER. Moreover, both AdipoR1 and AdipoR2 were required for fAd- or gAd-induced p-AMPK and TER responses, suggesting from their inhibition following AdipoR1 or AdipoR2 knockdown, and co-knockdown of AdipoRs by RNA interference. Our results suggest that adiponectin functions as a promoter of salivary secretion in rat submandibular glands via activation of AdipoRs, AMPK, and paracellular permeability.
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Affiliation(s)
- Chong Ding
- Center for Salivary Gland Diseases and Center Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
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