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Barnabé MA, Elliott J, Harris PA, Menzies-Gow NJ. Short-term induced hyperinsulinaemia and dexamethasone challenge do not affect circulating total adiponectin concentrations in insulin-sensitive ponies. Equine Vet J 2024; 56:332-341. [PMID: 37800859 DOI: 10.1111/evj.14012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/07/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND Hypoadiponectinaemia is a risk factor for endocrinopathic laminitis, but the directionality and nature of its association with insulin dysregulation is unclear. OBJECTIVES To investigate the effects of short-term induced hyperinsulinaemia and dexamethasone challenge on circulating [total adiponectin] and whole blood expression of adiponectin (AdipoR1 and AdipoR2), insulin, and insulin-like growth factor 1 (IGF-1) receptors in insulin-sensitive ponies. STUDY DESIGN In vivo experiment. METHODS Six never-laminitic, insulin-sensitive, native-breed UK ponies first underwent a dexamethasone challenge (0.08 mg/kg i.v.) with blood samples collected every 15 min over 3 h. After a 14-day washout period, hyperinsulinaemia was induced for 9 h via a euglycaemic-hyperinsulinaemic clamp (EHC), with blood samples collected every 30 min. Serum [insulin], plasma [total adiponectin], and plasma [IGF-1] were measured using validated assays and receptor gene expression was assessed via quantitative polymerase chain reaction (qPCR). Finally, whole blood was incubated with 10-1000 ng/mL dexamethasone for 3 h at 37°C to investigate its direct effects on gene expression. RESULTS There were no adverse effects observed during either protocol. Dexamethasone challenge did not alter circulating [insulin] or [total adiponectin] at any time-point, but significantly upregulated AdipoR1 and IGF-1R expression at 150 and 180 min. Ex vivo incubation of whole blood with dexamethasone did not alter expression of the genes examined. There was no change in [total adiponectin] or expression of the genes examined associated with EHC-induced hyperinsulinemia. MAIN LIMITATIONS This was a small sample size that included only native-breed ponies; total adiponectin was measured rather than high-molecular-weight adiponectin. CONCLUSIONS Short-term induced hyperinsulinaemia and dexamethasone challenge did not affect circulating [total adiponectin] in insulin-sensitive ponies. However, dexamethasone administration was associated with upregulation of two receptors linked to adiponectin signalling, suggesting that a physiological response occurred possibly to counteract dexamethasone-associated changes in tissue insulin sensitivity.
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Affiliation(s)
- Marine A Barnabé
- Department of Clinical Sciences and Services, Royal Veterinary College, Hertfordshire, UK
| | - Jonathan Elliott
- Department of Comparative Biomedical Sciences, Royal Veterinary College, Hertfordshire, UK
| | - Patricia A Harris
- Equine Studies Group, Waltham Petcare Science Institute, Leicestershire, UK
| | - Nicola J Menzies-Gow
- Department of Clinical Sciences and Services, Royal Veterinary College, Hertfordshire, UK
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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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3
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Araújo MC, Soczek SHS, Pontes JP, Marques LAC, Santos GS, Simão G, Bueno LR, Maria-Ferreira D, Muscará MN, Fernandes ES. An Overview of the TRP-Oxidative Stress Axis in Metabolic Syndrome: Insights for Novel Therapeutic Approaches. Cells 2022; 11:cells11081292. [PMID: 35455971 PMCID: PMC9030853 DOI: 10.3390/cells11081292] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/19/2022] [Accepted: 04/05/2022] [Indexed: 02/06/2023] Open
Abstract
Metabolic syndrome (MS) is a complex pathology characterized by visceral adiposity, insulin resistance, arterial hypertension, and dyslipidaemia. It has become a global epidemic associated with increased consumption of high-calorie, low-fibre food and sedentary habits. Some of its underlying mechanisms have been identified, with hypoadiponectinemia, inflammation and oxidative stress as important factors for MS establishment and progression. Alterations in adipokine levels may favour glucotoxicity and lipotoxicity which, in turn, contribute to inflammation and cellular stress responses within the adipose, pancreatic and liver tissues, in addition to hepatic steatosis. The multiple mechanisms of MS make its clinical management difficult, involving both non-pharmacological and pharmacological interventions. Transient receptor potential (TRP) channels are non-selective calcium channels involved in a plethora of physiological events, including energy balance, inflammation and oxidative stress. Evidence from animal models of disease has contributed to identify their specific contributions to MS and may help to tailor clinical trials for the disease. In this context, the oxidative stress sensors TRPV1, TRPA1 and TRPC5, play major roles in regulating inflammatory responses, thermogenesis and energy expenditure. Here, the interplay between these TRP channels and oxidative stress in MS is discussed in the light of novel therapies to treat this syndrome.
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Affiliation(s)
- Mizael C. Araújo
- Programa de Pós-Graduação, Universidade CEUMA, São Luís 65075-120, MA, Brazil; (M.C.A.); (G.S.S.)
| | - Suzany H. S. Soczek
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
| | - Jaqueline P. Pontes
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Maranhão, São Luís 565085-080, MA, Brazil;
| | - Leonardo A. C. Marques
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil; (L.A.C.M.); (M.N.M.)
| | - Gabriela S. Santos
- Programa de Pós-Graduação, Universidade CEUMA, São Luís 65075-120, MA, Brazil; (M.C.A.); (G.S.S.)
| | - Gisele Simão
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
| | - Laryssa R. Bueno
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
| | - Daniele Maria-Ferreira
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
| | - Marcelo N. Muscará
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil; (L.A.C.M.); (M.N.M.)
| | - Elizabeth S. Fernandes
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba 80250-060, PR, Brazil; (S.H.S.S.); (G.S.); (L.R.B.); (D.M.-F.)
- Programa de Pós-Graduação em Biotecnologia Aplicada à Saúde da Criança e do Adolescente, Faculdades Pequeno Príncipe, Curitiba 80230-020, PR, Brazil
- Correspondence:
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Ebrahimi R, Shanaki M, Mohassel Azadi S, Bahiraee A, Radmard AR, Poustchi H, Emamgholipour S. Low level of adiponectin predicts the development of Nonalcoholic fatty liver disease: is it irrespective to visceral adiposity index, visceral adipose tissue thickness and other obesity indices? Arch Physiol Biochem 2022; 128:24-31. [PMID: 31482741 DOI: 10.1080/13813455.2019.1661496] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We aimed to study the correlation of adiponectin level with insulin resistance (IR), carotid intima-media thickness (cIMT), and various obesity indices especially visceral adipose tissue (VAT) thickness, and visceral adiposity index (VAI), in patients with NAFLD (n = 41), T2D (n = 22), NAFLD + T2D (n = 41), and healthy subjects (n = 20). Results showed the median level of adiponectin in patients with NAFLD (2.97 μg/mL) and ones with NAFLD + T2D (3.21 μg/mL) is significantly lower rather than in controls (4.39 μg/mL). Moreover, VAI is the only predictor for adiponectin concentration in the combination of patient groups and also in all participants independent of IR and other obesity indices. Adiponectin level had also a positive correlation with cIMT and IR in NAFLD patients. Interestingly, lower level of adiponectin was associated with the presence of T2D, NAFLD, and NAFLD + T2D independent of IR and obesity indices. Collectively, it seems that VAI reflecting visceral adipose tissue function is a possible predictor of adiponectin level.
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Affiliation(s)
- Reyhane Ebrahimi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrnoosh Shanaki
- Department of Medical Laboratory Technology, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samaneh Mohassel Azadi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Bahiraee
- Department of Medical Genetics, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Amir Reza Radmard
- Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Poustchi
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Solaleh Emamgholipour
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Wu G, Zhao J, Zhao J, Song N, Zheng N, Zeng Y, Yao T, Zhang J, Weng J, Yuan M, Zhou H, Shen X, Li H, Zhang W. Exploring biological basis of Syndrome differentiation in coronary heart disease patients with two distinct Syndromes by integrated multi-omics and network pharmacology strategy. Chin Med 2021; 16:109. [PMID: 34702323 PMCID: PMC8549214 DOI: 10.1186/s13020-021-00521-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 10/17/2021] [Indexed: 12/14/2022] Open
Abstract
Background Traditional Chinese Medicine (TCM) is distinguished by Syndrome differentiation, which prescribes various formulae for different Syndromes of same disease. This study aims to investigate the underlying mechanism. Methods Using a strategy which integrated proteomics, metabolomics study for clinic samples and network pharmacology for six classic TCM formulae, we systemically explored the biological basis of TCM Syndrome differentiation for two typical Syndromes of CHD: Cold Congealing and Qi Stagnation (CCQS), and Qi Stagnation and Blood Stasis (QSBS). Results Our study revealed that CHD patients with CCQS Syndrome were characterized with alteration in pantothenate and CoA biosynthesis, while more extensively altered pathways including D-glutamine and D-glutamate metabolism; alanine, aspartate and glutamate metabolism, and glyoxylate and dicarboxylate metabolism, were present in QSBS patients. Furthermore, our results suggested that the down-expressed PON1 and ADIPOQ might be potential biomarkers for CCQS Syndrome, while the down-expressed APOE and APOA1 for QSBS Syndrome in CHD patients. In addition, network pharmacology and integrated analysis indicated possible comorbidity differences between the two Syndromes, that is, CCQS or QSBS Syndrome was strongly linked to diabetes or ischemic stroke, respectively, which is consistent with the complication disparity between the enrolled patients with two different Syndromes. These results confirmed our assumption that the molecules and biological processes regulated by the Syndrome-specific formulae could be associated with dysfunctional objects caused by the Syndrome of the disease. Conclusion This study provided evidence-based strategy for exploring the biological basis of Syndrome differentiation in TCM, which sheds light on the translation of TCM theory in the practice of precision medicine. Supplementary Information The online version contains supplementary material available at 10.1186/s13020-021-00521-3. 1. Our work was based on clinical samples rather than pure data analysis or animal models. 2. We conducted multiple omics studies. Especially, as for metabolomics study, we performed both untargeted and targeted metabolomics experiments. 3. We performed network pharmacological study to cross-validated the results of multi-omics study. Although the data sources of network pharmacology were completely unrelated with our omics data, they came to the same conclusion about the difference of the two Syndromes. 4. In the network pharmacological study, we made efforts to collect and screen high-quality data. We collected data from multiple TCM databases and conducted drug likeness screening. Especially, we added quality markers of each herb, whose pharmacological relevance had been validated. To enhance the reliability of targets, for each Syndrome, we only studied common targets of 3 different TCM formulae prescribed for this Syndrome.
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Affiliation(s)
- Gaosong Wu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cai Lun Road, Pudong New District, Shanghai, 201203, China
| | - Jing Zhao
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cai Lun Road, Pudong New District, Shanghai, 201203, China
| | - Jing Zhao
- Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, No. 5 Haiyuncang, Dongcheng District, Beijing, 100700, China
| | - Nixue Song
- Department of Analytical Chemistry and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ningning Zheng
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cai Lun Road, Pudong New District, Shanghai, 201203, China
| | - Yuanyuan Zeng
- Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, No. 5 Haiyuncang, Dongcheng District, Beijing, 100700, China
| | - Tingting Yao
- Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, No. 5 Haiyuncang, Dongcheng District, Beijing, 100700, China
| | - Jingfang Zhang
- Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, No. 5 Haiyuncang, Dongcheng District, Beijing, 100700, China
| | - Jieqiong Weng
- Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, No. 5 Haiyuncang, Dongcheng District, Beijing, 100700, China
| | - Mengfei Yuan
- Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, No. 5 Haiyuncang, Dongcheng District, Beijing, 100700, China
| | - Hu Zhou
- Department of Analytical Chemistry and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoxu Shen
- Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, No. 5 Haiyuncang, Dongcheng District, Beijing, 100700, China.
| | - Houkai Li
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cai Lun Road, Pudong New District, Shanghai, 201203, China.
| | - Weidong Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cai Lun Road, Pudong New District, Shanghai, 201203, China. .,Department of Phytochemistry, School of Pharmacy, Second Military Medical University, No. 325 Guo He Road, Yangpu District, Shanghai, 200433, China.
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Salvator H, Grassin-Delyle S, Brollo M, Couderc LJ, Abrial C, Victoni T, Naline E, Devillier P. Adiponectin Inhibits the Production of TNF-α, IL-6 and Chemokines by Human Lung Macrophages. Front Pharmacol 2021; 12:718929. [PMID: 34512346 PMCID: PMC8428996 DOI: 10.3389/fphar.2021.718929] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/09/2021] [Indexed: 01/22/2023] Open
Abstract
Background: Obesity is associated with an elevated risk of severe respiratory infections and inflammatory lung diseases. The objectives were to investigate 1) the production of adiponectin by human lung explants, 2) the expression of the adiponectin receptors AdipoR1 and AdipoR2 by human lung macrophages (LMs), and 3) the impact of recombinant human adiponectin and a small-molecule APN receptor agonist (AdipoRon) on LMs activation. Material and methods: Human parenchyma explants and LMs were isolated from patients operated for carcinoma. The LMs were cultured with recombinant adiponectin or AdipoRon and stimulated with lipopolysaccharide (10 ng ml-1), poly (I:C) (10 µg ml-1) or interleukin (IL)-4 (10 ng ml-1) for 24 h. Cytokines or adiponectin, released by explants or LMs, were measured using ELISAs. The mRNA levels of AdipoR1 and AdipoR2 were determined using real-time quantitative PCR. AdipoRs expression was also assessed with confocal microscopy. Results: Adiponectin was released by lung explants at a level negatively correlated with the donor's body mass index. AdipoR1 and AdipoR2 were both expressed in LMs. Adiponectin (3-30 µg ml-1) and AdipoRon (25-50 μM) markedly inhibited the LPS- and poly (I:C)-induced release of Tumor Necrosis Factor-α, IL-6 and chemokines (CCL3, CCL4, CCL5, CXCL1, CXCL8, CXCL10) and the IL-4-induced release of chemokines (CCL13, CCL17, CCL22) in a concentration-dependent manner. Recombinant adiponectin produced in mammalian cells (lacking low molecular weight isoforms) had no effects on LMs. Conclusion and implications: The low-molecular-weight isoforms of adiponectin and AdipoRon have an anti-inflammatory activity in the lung environment. Targeting adiponectin receptors may constitute a new means of controlling airways inflammation.
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Affiliation(s)
- Hélène Salvator
- Laboratory of Research in respiratory Pharmacology- Virologie et Immunologie Moleculaire (VIM)- UMR 0892 Université Paris-Saclay, Suresnes, France.,Faculté des Sciences de la Santé Simone Veil, UVSQ Paris-Saclay University, Montigny-le-Bretonneux, , France.,Department of Respiratory Diseases, Foch Hospital, Suresnes, France
| | - Stanislas Grassin-Delyle
- Laboratory of Research in respiratory Pharmacology- Virologie et Immunologie Moleculaire (VIM)- UMR 0892 Université Paris-Saclay, Suresnes, France.,Faculté des Sciences de la Santé Simone Veil, UVSQ Paris-Saclay University, Montigny-le-Bretonneux, , France.,Mass Spectrometry Platform and INSERM UMR1173, Montigny-le-Bretonneux, France
| | - Marion Brollo
- Laboratory of Research in respiratory Pharmacology- Virologie et Immunologie Moleculaire (VIM)- UMR 0892 Université Paris-Saclay, Suresnes, France
| | - Louis-Jean Couderc
- Laboratory of Research in respiratory Pharmacology- Virologie et Immunologie Moleculaire (VIM)- UMR 0892 Université Paris-Saclay, Suresnes, France.,Faculté des Sciences de la Santé Simone Veil, UVSQ Paris-Saclay University, Montigny-le-Bretonneux, , France.,Department of Respiratory Diseases, Foch Hospital, Suresnes, France
| | - Charlotte Abrial
- Laboratory of Research in respiratory Pharmacology- Virologie et Immunologie Moleculaire (VIM)- UMR 0892 Université Paris-Saclay, Suresnes, France
| | - Tatiana Victoni
- Laboratory of Research in respiratory Pharmacology- Virologie et Immunologie Moleculaire (VIM)- UMR 0892 Université Paris-Saclay, Suresnes, France.,University of Lyon, VetAgro Sup, APCSe, Marcy l'Étoile, France
| | - Emmanuel Naline
- Laboratory of Research in respiratory Pharmacology- Virologie et Immunologie Moleculaire (VIM)- UMR 0892 Université Paris-Saclay, Suresnes, France.,Faculté des Sciences de la Santé Simone Veil, UVSQ Paris-Saclay University, Montigny-le-Bretonneux, , France
| | - Philippe Devillier
- Laboratory of Research in respiratory Pharmacology- Virologie et Immunologie Moleculaire (VIM)- UMR 0892 Université Paris-Saclay, Suresnes, France.,Faculté des Sciences de la Santé Simone Veil, UVSQ Paris-Saclay University, Montigny-le-Bretonneux, , France.,Department of Respiratory Diseases, Foch Hospital, Suresnes, France
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Ramos-Ramírez P, Malmhäll C, Tliba O, Rådinger M, Bossios A. Adiponectin/AdipoR1 Axis Promotes IL-10 Release by Human Regulatory T Cells. Front Immunol 2021; 12:677550. [PMID: 34084174 PMCID: PMC8167046 DOI: 10.3389/fimmu.2021.677550] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 04/29/2021] [Indexed: 12/11/2022] Open
Abstract
Background Adiponectin is an important immunomodulatory mediator in inflammatory conditions. While we previously showed that adiponectin receptor 1 (AdipoR1) is expressed in murine regulatory T cells (Tregs), its expression in human Tregs remain unknown. Here, we examined the expression of AdipoR1 in human Tregs and whether its ligand, globular adiponectin (gAd) affects the Treg ability to secrete IL-10 and the role of Type 2 (T2) inflammation in such process. Methods Human Tregs from peripheral blood were analyzed by flow cytometry for AdipoR1, Helios and IL-10 expression. CD4+ T cells enriched from peripheral blood mononuclear cells (PBMCs) were cultured in the presence or the absence of gAd or the chemical adiponectin receptor agonist, AdipoRon, or in a T2 cytokine milieu. Flow cytometry was then used to assess intracellular IL-10, IL-10 secreting cells, FOXP3 and Helios expression, and phosphorylated p38 MAP kinase (MAPK). IL-10 levels in CD4+ T cell supernatants were quantified by ELISA. Results We found that a subset of human Tregs expressed AdipoR1. Importantly, more Helios- cells expressed AdipoR1 than Helios+ cells. Likewise, there was a higher frequency of IL-10+ cells within Helios- AdipoR1+ Tregs compared to Helios+ AdipoR1+ Tregs. In contrast, the IL-10 mean fluorescence intensity (MFI) was higher in Helios+ AdipoR1+ Tregs compared to Helios-AdipoR1+ Tregs. When human CD4+ T cells were treated with gAd or AdipoRon, a significant increase in IL-10 secretion, FOXP3 expression, and p38 MAPK phosphorylation was observed in Helios- AdipoR1+ Tregs. Interestingly, gAd under T2 cytokine milieu significantly increased the intracellular levels of IL-10, mainly in Helios+ AdipoR1+ Tregs, and IL-10 levels in supernatants of CD4+ T cells. Conclusions Collectively, our findings suggest that adiponectin/AdipoR1 axis promotes IL-10 release by Tregs, mainly in Helios- Tregs, and the effect was amplified by T2 inflammation in Helios+ Tregs.
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Affiliation(s)
- Patricia Ramos-Ramírez
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Carina Malmhäll
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Omar Tliba
- Department of Biomedical Sciences, College of Veterinary Medicine, Long Island University, Brookville, NY, United States
| | - Madeleine Rådinger
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Apostolos Bossios
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Huddinge and Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
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8
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Saleh AA, Tayel SI, Shalaby AG, El Naidany SS. Role of Adiponectin Gene and Receptor Polymorphisms and Their mRNA Levels with Serum Adiponectin Level in Myocardial Infarction. APPLICATION OF CLINICAL GENETICS 2020; 13:241-252. [PMID: 33376382 PMCID: PMC7755379 DOI: 10.2147/tacg.s282843] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 11/24/2020] [Indexed: 12/15/2022]
Abstract
Background and Aim Genetic factors are vital participants in the development and progression of myocardial infarction (MI). Adiponectin has been assumed to have a protective role in MI and adiponectin receptors variants could be a determinant for atherosclerosis. We aimed to evaluate the prevalence of ADIPOQ (rs2241766) and ADIPOR2 (rs10773989) polymorphisms and their association with mRNA levels and circulatory adiponectin levels in patients with MI. Subjects and Methods A total of 220 participants were classified into two groups: group 1 included 120 patients with MI, and group 2 involved 100 healthy participants as controls. Genotyping of ADIPOQ (rs2241766) and ADIPOR2 (rs10773989) polymorphisms were analyzed using an allele discrimination assay with real-time PCR and their relative expression or mRNA levels were determined by real-time PCR. Serum adiponectin level was determined using an ELISA technique. Results The ADIPOQ rs2241766 GG genotype and G allele and the CC genotype and C allele of ADIPOR2 rs10773989 were significantly prevalent in patients with MI and associated with increased risk of MI. We detected a marked reduction in serum adiponectin, ADIPOQ and ADIPOR2 mRNA levels in patients than control. The GG genotype of ADIPOQ rs2241766 and the CC genotype of ADIPOR2 rs10773989 had the lowest levels of their mRNA and adiponectin level in both patients and controls. Conclusion Adiponectin gene and receptor variants are potentially related to MI risk; furthermore, their expressions were markedly depressed in MI which suggests their use as potential biomarkers for MI.
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Affiliation(s)
- Amany A Saleh
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Menoufia University, Shebin el-Kom, Egypt
| | - Safaa I Tayel
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Menoufia University, Shebin el-Kom, Egypt
| | - Awny Gamal Shalaby
- Cardiology Department, Faculty of Medicine, Menoufia University, Shebin el-Kom, Egypt
| | - Sherin Sobhy El Naidany
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Menoufia University, Shebin el-Kom, Egypt
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9
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Kobayashi H, Otsuka H, Yanai M, Hara M, Hishiki M, Soma M, Abe M. Adiponectin Receptor gene Polymorphisms are Associated with Kidney Function in Elderly Japanese Populations. J Atheroscler Thromb 2018; 26:328-339. [PMID: 30135333 PMCID: PMC6456456 DOI: 10.5551/jat.45609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Aim: Adiponectin exhibits its biological effects through adiponectin receptors (AdipoR1 and AdipoR2), which are distributed in the kidneys, and activation of those receptors could prevent or ameliorate diabetic nephropathy. This study aimed to evaluate the associations between AdipoR single nucleotide polymorphisms (SNPs) and kidney function in an elderly Japanese population. Methods: A total of 271 elderly Japanese volunteers underwent anthropometric and laboratory tests (cystatin C-based eGFR and total and high molecular weight adiponectin levels at baseline and a follow-up visit). Genotype data were obtained for the selected 7 and 5 AdipoR1 and AdipoR2 SNPs, respectively. Results: In a cross-sectional analysis at baseline, we found a significant association between the AdipoR2 SNP rs12230440 and kidney function; eGFRcys tended to increase as the number of carriers of T alleles increased after adjustment for covariates and Bonferroni correction, although the association of the SNP and annual eGFR decline could not be identified in the longitudinal data. Regarding the variants rs16850797, rs11061925, and rs10773983, each of the allele G, allele C, and allele G showed nominally significant associations with higher eGFRcys. However, this failed to reach significance after Bonferroni correction. Conclusion: Here, an AdipoR2 SNP was associated with kidney function, suggesting that the effects of this polymorphism on adiponectin receptor may affect kidney function in the elderly Japanese population.
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Affiliation(s)
- Hiroki Kobayashi
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine
| | - Hiromasa Otsuka
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Mitsuru Yanai
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Motohiko Hara
- Department of Nursing, School of Health and Social Services, Saitama Prefectural University
| | - Mikano Hishiki
- Department of Diabetes and Endocrinology, Tokyo Metropolitan Hiroo Hospital
| | - Masayoshi Soma
- Division of General Medicine, Department of Internal Medicine, Nihon University School of Medicine
| | - Masanori Abe
- Division of Nephrology, Hypertension and Endocrinology, Department of Internal Medicine, Nihon University School of Medicine
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10
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Muñoz‐Muñoz E, Krause BJ, Uauy R, Casanello P. LGA‐newborn from patients with pregestational obesity present reduced adiponectin‐mediated vascular relaxation and endothelial dysfunction in fetoplacental arteries. J Cell Physiol 2018; 233:6723-6733. [DOI: 10.1002/jcp.26499] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 01/24/2018] [Indexed: 12/21/2022]
Affiliation(s)
| | - Bernardo J. Krause
- Division of Pediatrics, School of Medicine Pontificia Universidad Católica de Chile Santiago Chile
| | - Ricardo Uauy
- Division of Pediatrics, School of Medicine Pontificia Universidad Católica de Chile Santiago Chile
| | - Paola Casanello
- Division of Pediatrics, School of Medicine Pontificia Universidad Católica de Chile Santiago Chile
- Division of Obstetrics and Gynecology, School of Medicine Pontificia Universidad Católica de Chile Santiago Chile
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11
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Li TD, Zeng ZH. Adiponectin as a potential therapeutic target for the treatment of restenosis. Biomed Pharmacother 2018; 101:798-804. [PMID: 29525676 DOI: 10.1016/j.biopha.2018.03.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/28/2018] [Accepted: 03/02/2018] [Indexed: 12/14/2022] Open
Abstract
Restenosis is a pathologic re-narrowing of a coronary artery lesion after mechanical injury. Its pathophysiological mechanisms have not been fully elucidated at present, but are thought to include inflammation, vascular smooth muscle cell (VSMC) proliferation, and matrix remodeling, beginning with insufficient endothelium healing. Restenosis presents with angina symptoms or acute coronary syndromes and lead to a revascularization, either with coronary artery bypass or repeat percutaneous coronary intervention. Some studies have reported that hypoadiponectinemia has been an independent risk factor for the onset of acute coronary syndromes and restenosis. Accumulating evidence shows that low concentrations of adiponectin may be involved in impairing endothelium functions, inflammation, and VSMC proliferation that lead to restenosis. Preclinical studies have proven that adiponectin promotes endothelium healing, effectively inhibits inflammation, and maintains contractile phenotypes of VSMCs, indicating that it may be developed as a new therapeutic target for the treatment of restenosis.
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Affiliation(s)
- Tu di Li
- Department of Cardiovascular Diseases, The First Affiliated Hospital of Guangdong Pharmaceutical University, China
| | - Zhi Huan Zeng
- Department of Cardiovascular Diseases, The First Affiliated Hospital of Guangdong Pharmaceutical University, China.
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12
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Ghazouani L, Elmufti A, Baaziz I, Chaabane I, Ben Mansour H. Contribution of adiponectin polymorphisms to the risk of coronary artery disease in a North-African Tunisian population. J Clin Lab Anal 2018; 32:e22446. [PMID: 29633340 DOI: 10.1002/jcla.22446] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 03/08/2018] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Adiponectin, an adipocyte-derived protein, is known to play a key role in the processes leading to atherosclerosis and coronary artery disease (CAD) through its anti-atherogenic, anti-inflammatory, antioxidative, and anti-apoptotic properties. In the current study, we have studied the association of two single nucleotide polymorphisms (SNPs) +45 T>G (rs2241766) and +276 G>T (rs1501299) of the adiponectin gene with coronary artery disease (CAD) on an Arab/North-African population from Tunisia. METHODS Subjects comprised 277 patients with angiographically demonstrated CAD and 269 age- and gender-matched control subjects. The adiponectin genotypes were performed by polymerase chain reaction-restriction fragment length polymorphism analysis (PCR-RFLP). The contribution of adiponectin variants to CAD was analyzed by haplotype and regression analysis. RESULTS Adiponectin +45T>G and +276G>T genotypic and allelic distributions did not show a significant difference between cases and controls. Similarly, no association with CAD was observed for the haplotype analysis. Assuming dominant model of transmission for both polymorphisms and after adjustment of a number of traditional risk factors for CAD, logistic regression analysis showed an association of SNP +45 T>G with increased risk of developing CAD [adjusted OR (95% CI) = 2.59 (1.17-5.70); P = .01]. However, SNP + 276 G>T is associated with decreased risk of developing CAD [adjusted OR (95% CI) = 0.47 (0.22-0.97); P = .04]. CONCLUSION There is no allelic or genotypic association of +45 T>G and +276 G>T of the adiponectin gene with CAD in the Tunisian population.
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Affiliation(s)
- Lakhdar Ghazouani
- Research Unit of Macromolecular Biochemistry and Genetics, Faculty of Sciences of Gafsa, Gafsa, Tunisia
| | - Afoua Elmufti
- Research Unit of Macromolecular Biochemistry and Genetics, Faculty of Sciences of Gafsa, Gafsa, Tunisia
| | - Intissar Baaziz
- Research Unit of Macromolecular Biochemistry and Genetics, Faculty of Sciences of Gafsa, Gafsa, Tunisia
| | - Ibtissem Chaabane
- Research Unit of Macromolecular Biochemistry and Genetics, Faculty of Sciences of Gafsa, Gafsa, Tunisia
| | - Hedi Ben Mansour
- Research Unit of Analysis and Process Applied to the Environmental-APAE (UR17ES32), Higher Institute of Applied Sciences and Technology Mahdia, University of Monastir, Monastir, Tunisia
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13
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Tsiotra PC, Halvatsiotis P, Patsouras K, Maratou E, Salamalekis G, Raptis SA, Dimitriadis G, Boutati E. Circulating adipokines and mRNA expression in adipose tissue and the placenta in women with gestational diabetes mellitus. Peptides 2018; 101:157-166. [PMID: 29337272 DOI: 10.1016/j.peptides.2018.01.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 01/04/2018] [Accepted: 01/10/2018] [Indexed: 02/07/2023]
Abstract
Maternal adipose tissue and the placenta secrete various molecules commonly called adipokines such as chemerin, omentin-1, visfatin, adiponectin, and leptin that are important players in the pathogenesis of insulin resistance. Gestational diabetes mellitus (GDM) is defined as a state of glucose intolerance characterized by β-cell dysfunction and insulin resistance. To examine whether circulating adipokines and their mRNA expression in the adipose tissue and the placenta are altered in GDM pregnancy, we compared 15 GDM women [obese (BMI > 30) and non-obese (BMI < 30)] to 23 NGT (normal glucose tolerance) women [obese and non-obese], at the time of the Cesarean section. Circulating chemerin and leptin were higher (p = 0.009 and p = 0.005, respectively) and circulating omentin-1, visfatin, as well as the adiponectin/leptin ratio were lower (p = 0.039, p = 0.007 and p = 0.011, respectively) in GDM-obese compared to NGT-non-obese women. Chemerin and leptin correlated positively with BMI and HOMA-IR and omentin-1 correlated negatively with BMI. Serum TNF-α was significantly elevated in all obese compared to non-obese pregnant women and correlated positively with BMI. Adiponectin levels were reduced -although not significantly- in GDM- and NGT-obese women compared to their non-obese counterparts. Resistin, RPB4 and IL-6 levels did not differ significantly between groups. Chemerin mRNA expression in subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) was significantly higher compared to placenta in all women (6-to 24-times, p < 0.05). Chemerin-VAT mRNA expression in GDM-obese tended to be significantly higher compared to NGT-non-obese women (3-times, p = 0.005). Omentin-1 mRNA expression was significantly higher in VAT compared to SAT (50- to 100-times, p < 0.01) and its expression in placenta was negligible in all women. Although, leptin was expressed significantly higher in SAT compared to VAT and the placenta in all women (5- to 46-times, p < 0.05), only its mRNA expression in VAT of obese (GDM and NGT) differed significantly when compared to NGT-non-obese women (3-times higher, p < 0.02). Visfatin mRNA expression was comparable in all tissues. In conclusion, chemerin and leptin are elevated and omentin-1 and visfatin levels are decreased in GDM women complicated by obesity. This finding together with the positive association of chemerin and leptin with markers of insulin resistance, suggests that these adipokines and more especially chemerin and leptin accompanied by their adipose tissue expression could contribute to the increased insulin resistance and low grade inflammation that characterizes GDM-obese women.
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Affiliation(s)
- Panayoula C Tsiotra
- Hellenic National Center for the Research, Prevention and Treatment of Diabetes Mellitus and its Complications (H.N.D.C), Ploutarchou 3, 10675 Athens, Greece.
| | - Panagiotis Halvatsiotis
- 2nd Department of Internal Medicine, Research Institute and Diabetes Center, National and Kapodistrian University of Athens, Medical School, University General Hospital Attikon, Rimini 1, 12462 Haidari, Athens, Greece
| | - Konstantinos Patsouras
- 3rd Department of Obstetrics and Gynecology, University General Hospital Attikon, Rimini 1, 12462 Haidari, Athens, Greece
| | - Eirini Maratou
- Hellenic National Center for the Research, Prevention and Treatment of Diabetes Mellitus and its Complications (H.N.D.C), Ploutarchou 3, 10675 Athens, Greece
| | - George Salamalekis
- Assisted Reproduction Unit, 3rd Department of Obstetrics and Gynecology, University General Hospital Attikon, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Sotirios A Raptis
- Hellenic National Center for the Research, Prevention and Treatment of Diabetes Mellitus and its Complications (H.N.D.C), Ploutarchou 3, 10675 Athens, Greece
| | - George Dimitriadis
- 2nd Department of Internal Medicine, Research Institute and Diabetes Center, National and Kapodistrian University of Athens, Medical School, University General Hospital Attikon, Rimini 1, 12462 Haidari, Athens, Greece
| | - Eleni Boutati
- 2nd Department of Internal Medicine, Research Institute and Diabetes Center, National and Kapodistrian University of Athens, Medical School, University General Hospital Attikon, Rimini 1, 12462 Haidari, Athens, Greece
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14
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Ambroziak M, Kolanowska M, Bartoszewicz Z, Budaj A. Adiponectin gene variants and decreased adiponectin plasma levels are associated with the risk of myocardial infarction in young age. Gene 2018; 642:498-504. [DOI: 10.1016/j.gene.2017.11.064] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/10/2017] [Accepted: 11/27/2017] [Indexed: 01/20/2023]
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15
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Integrated Immunomodulatory Mechanisms through which Long-Chain n-3 Polyunsaturated Fatty Acids Attenuate Obese Adipose Tissue Dysfunction. Nutrients 2017; 9:nu9121289. [PMID: 29186929 PMCID: PMC5748740 DOI: 10.3390/nu9121289] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 12/13/2022] Open
Abstract
Obesity is a global health concern with rising prevalence that increases the risk of developing other chronic diseases. A causal link connecting overnutrition, the development of obesity and obesity-associated co-morbidities is visceral adipose tissue (AT) dysfunction, characterized by changes in the cellularity of various immune cell populations, altered production of inflammatory adipokines that sustain a chronic state of low-grade inflammation and, ultimately, dysregulated AT metabolic function. Therefore, dietary intervention strategies aimed to halt the progression of obese AT dysfunction through any of the aforementioned processes represent an important active area of research. In this connection, fish oil-derived dietary long-chain n-3 polyunsaturated fatty acids (PUFA) in the form of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have been demonstrated to attenuate obese AT dysfunction through multiple mechanisms, ultimately affecting AT immune cellularity and function, adipokine production, and metabolic signaling pathways, all of which will be discussed herein.
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16
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Keustermans G, van der Heijden LB, Boer B, Scholman R, Nuboer R, Pasterkamp G, Prakken B, de Jager W, Kalkhoven E, Janse AJ, Schipper HS. Differential adipokine receptor expression on circulating leukocyte subsets in lean and obese children. PLoS One 2017; 12:e0187068. [PMID: 29073286 PMCID: PMC5658151 DOI: 10.1371/journal.pone.0187068] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 10/12/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Childhood obesity prevalence has increased worldwide and is an important risk factor for type 2 diabetes (T2D) and cardiovascular disease (CVD). The production of inflammatory adipokines by obese adipose tissue contributes to the development of T2D and CVD. While levels of circulating adipokines such as adiponectin and leptin have been established in obese children and adults, the expression of adiponectin and leptin receptors on circulating immune cells can modulate adipokine signalling, but has not been studied so far. Here, we aim to establish the expression of adiponectin and leptin receptors on circulating immune cells in obese children pre and post-lifestyle intervention compared to normal weight control children. METHODS 13 obese children before and after a 1-year lifestyle intervention were compared with an age and sex-matched normal weight control group of 15 children. Next to routine clinical and biochemical parameters, circulating adipokines were measured, and flow cytometric analysis of adiponectin receptor 1 and 2 (AdipoR1, AdipoR2) and leptin receptor expression on peripheral blood mononuclear cell subsets was performed. RESULTS Obese children exhibited typical clinical and biochemical characteristics compared to controls, including a higher BMI-SD, blood pressure and circulating leptin levels, combined with a lower insulin sensitivity index (QUICKI). The 1-year lifestyle intervention resulted in stabilization of their BMI-SD. Overall, circulating leukocyte subsets showed distinct adipokine receptor expression profiles. While monocytes expressed high levels of all adipokine receptors, NK and iNKT cells predominantly expressed AdipoR2, and B-lymphocytes and CD4+ and CD8+ T-lymphocyte subsets expressed AdipoR2 as well as leptin receptor. Strikingly though, leukocyte subset numbers and adipokine receptor expression profiles were largely similar in obese children and controls. Obese children showed higher naïve B-cell numbers, and pre-intervention also higher numbers of immature transition B-cells and intermediate CD14++CD16+ monocytes combined with lower total monocyte numbers, compared to controls. Furthermore, adiponectin receptor 1 expression on nonclassical CD14+CD16++ monocytes was consistently upregulated in obese children pre-intervention, compared to controls. However, none of the differences in leukocyte subset numbers and adipokine receptor expression profiles between obese children and controls remained significant after multiple testing correction. CONCLUSIONS First, the distinct adipokine receptor profiles of circulating leukocyte subsets may partly explain the differential impact of adipokines on leukocyte subsets. Second, the similarities in adipokine receptor expression profiles between obese children and normal weight controls suggest that adipokine signaling in childhood obesity is primarily modulated by circulating adipokine levels, instead of adipokine receptor expression.
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Affiliation(s)
- Genoveva Keustermans
- Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Berlinda Boer
- Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rianne Scholman
- Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Roos Nuboer
- Division of Pediatrics, Meander Medical Centre, Amersfoort, The Netherlands
| | - Gerard Pasterkamp
- Department of Experimental Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Berent Prakken
- Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Division of Pediatrics, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Wilco de Jager
- Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Eric Kalkhoven
- Molecular Cancer Research and Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Arieke J. Janse
- Division of Pediatrics, Hospital Gelderse Vallei, Ede, The Netherlands
| | - Henk S. Schipper
- Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Division of Pediatrics, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Pediatric Cardiology, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
- * E-mail:
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17
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Mohammadzadeh G, Ghaffari MA, Heibar H, Bazyar M. Association of two Common Single Nucleotide Polymorphisms (+45T/G and +276G/T) of ADIPOQ Gene with Coronary Artery Disease in Type 2 Diabetic Patients. IRANIAN BIOMEDICAL JOURNAL 2016; 20:152-60. [PMID: 26781170 PMCID: PMC4949979 DOI: 10.7508/ibj.2016.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background: Adiponectin, an adipocyte-secreted hormone, is known to have anti-atherogenic, anti-inflammatory, and anti-diabetic properties. In the present study, the association between two common single nucleotide polymorphisms (SNPs) (+45T/G and +276G/T) of ADIOPQ gene and coronary artery disease (CAD) was assessed in the subjects with type 2 diabetes (T2DM). Methods: Genotypes of two SNPs were determined by polymerase chain reaction-restriction fragment length polymorphism in 200 subjects with T2DM (100 subjects with CAD and 100 without CAD). Results: The frequency of TT genotype of +276G/T was significantly elevated in CAD compared to controls (χ2=7.967, P=0.019). A similar difference was found in the allele frequency of +276G/T between two groups (χ2=3.895, P=0.048). The increased risk of CAD was associated with +276 TT genotype when compared to reference GG genotype (OR=5.158; 95% CI=1.016-26.182, P=0.048). However, no similar difference was found in genotype and allele frequencies of SNP +45T/G between two groups. There was a CAD protective haplotype combination of +276 wild-type and +45 mutant-type allele (276G-45G) (OR=0.37, 95% CI=0.16-0.86, P=0.022) in the subject population. Conclusion: Our findings indicated that T allele of SNP +276G/T is more associated with the increased risk of CAD in subjects with T2DM. Also, a haplotype combination of +45G/+276G of these two SNPs has a protective effect on the risk of CAD.
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Affiliation(s)
- Ghorban Mohammadzadeh
- Hyperlipidemia Research Center, Dept. of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad-Ali Ghaffari
- Cellular and Molecular Research Center, Dept. of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Habib Heibar
- Cardiovascular Research Center, Dept. of Cardiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Bazyar
- Dept. of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Sopić M, Joksić J, Spasojević-Kalimanovska V, Kalimanovska-Oštrić D, Anđelković K, Jelić-Ivanović Z. Are decreased AdipoR1 mRNA levels associated with adiponectin resistance in coronary artery disease patients? Clin Exp Pharmacol Physiol 2015; 42:331-6. [PMID: 25582653 DOI: 10.1111/1440-1681.12361] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/23/2014] [Accepted: 01/04/2015] [Indexed: 12/15/2022]
Abstract
The aim of the present study was to investigate if circulating adiponectin levels and the expression of AdipoR1 and AdipoR2 in peripheral blood mononuclear cells (PBMC) are altered in coronary artery disease (CAD) patients, with and without significant stenosis, compared to healthy patients. The present study included 69 patients with presenting symptoms of CAD (26 patients with significant stenosis and 43 patients without significant stenosis). The control group (CG) consisted of 33 healthy patients. Circulating adiponectin levels were measured by enzyme-linked immunosorbent assay, whereas AdipoR1 and AdipoR2 mRNA levels in PBMC were determined by real-time polymerase chain reaction. Adiponectin levels were significantly higher in patients with and without significant stenosis compared to the CG (P < 0.001 vs P = 0.006, respectively). Both patient groups had lower AdipoR1 levels compared to the CG (P < 0.001 vs P < 0.001, respectively). There were no significant differences in these parameters between the two patient groups. Adiponectin negatively correlated with body mass index, triglycerides, insulin and homeostasis model assessment of insulin resistance index (HOMA IR), and positively with high-denisty lipoprotein cholesterol in the CG. Glucose, insulin, and the HOMA IR index negatively correlated with adiponectin in patients. A positive correlation between adiponectin receptors was found in patients and the CG. Decreased AdipoR1 mRNA levels and increased circulating adiponectin in advanced stages of CAD, as well as in patients without significant stenosis, compared to the CG, implies that CAD could be related to 'adiponectin resistance'. Despite increased adiponectin, its protective effects could be diminished even in early stages of atherosclerosis.
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Affiliation(s)
- Miron Sopić
- Department of Medical Biochemistry, University of Belgrade, Belgrade, Serbia
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19
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De Boer AA, Monk JM, Liddle DM, Power KA, Ma DWL, Robinson LE. Fish Oil-Derived Long-Chain n-3 Polyunsaturated Fatty Acids Reduce Expression of M1-Associated Macrophage Markers in an ex vivo Adipose Tissue Culture Model, in Part through Adiponectin. Front Nutr 2015; 2:31. [PMID: 26528480 PMCID: PMC4602148 DOI: 10.3389/fnut.2015.00031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/28/2015] [Indexed: 01/03/2023] Open
Abstract
Adipose tissue (AT) macrophages (ATM) play a key role in obesity-associated pathologies, and their phenotype can be influenced by the local tissue microenvironment. Interestingly, long-chain n-3 polyunsaturated fatty acids (LC n-3 PUFA) and the LC n-3 PUFA-upregulated adipokine, adiponectin (Ad), may mitigate excessive ATM inflammatory M1-polarization responses. However, to what extent LC n-3 PUFA and Ad work in concert to affect macrophage phenotype has not been examined. Thus, we used an established ex vivo AT organ culture model using visceral AT from mice fed a control (CON; 10% w/w safflower oil) n-6 PUFA-rich diet or an isocaloric fish oil (FO; 3% w/w menhaden oil + 7% w/w safflower oil)-derived LC n-3 PUFA-rich diet to generate AT conditioned media (ACM). We then evaluated if CON or FO ACM affected macrophage polarization markers in a model designed to mimic acute [18 h ACM plus lipopolysaccharide (LPS) for the last 6 h] or chronic (macrophages treated with LPS-challenged CON or FO ACM for 24 h) inflammation ± Ad-neutralizing antibody and the LPS-neutralizing agent, polymyxin B. In the acute inflammation model, macrophages treated with FO ACM had decreased lipid uptake and mRNA expression of M1 markers (Nos2, Nfκb, Il6, Il18, Ccl2, and Ccl5) compared with CON ACM (p ≤ 0.05); however, these effects were largely attenuated when Ad was neutralized (p > 0.05). Furthermore, in the chronic inflammation model, macrophages treated with FO ACM had decreased mRNA expression of M1 markers (Nos2, Tnfα, Ccl2, and Il1β) and IL-6 and CCL2 secretion (p ≤ 0.05); however, some of these effects were lost when Ad was neutralized, and were further exacerbated when both Ad and LPS were neutralized. Taken together, this work shows that LC n-3 PUFA and Ad work in concert to suppress certain M1 macrophage responses. Thus, future strategies to modulate the ATM phenotype should consider the role of both LC n-3 PUFA and Ad in mitigating obese AT inflammation.
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Affiliation(s)
- Anna A De Boer
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, ON , Canada
| | - Jennifer M Monk
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, ON , Canada ; Guelph Food Research Centre, Agriculture and Agri-Food Canada , Guelph, ON , Canada
| | - Danyelle M Liddle
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, ON , Canada
| | - Krista A Power
- Guelph Food Research Centre, Agriculture and Agri-Food Canada , Guelph, ON , Canada
| | - David W L Ma
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, ON , Canada
| | - Lindsay E Robinson
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, ON , Canada
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Expression of Adiponectin Receptors on Peripheral Blood Leukocytes of Hypertensive Children Is Associated with the Severity of Hypertension. BIOMED RESEARCH INTERNATIONAL 2015; 2015:742646. [PMID: 26146630 PMCID: PMC4471253 DOI: 10.1155/2015/742646] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/30/2015] [Accepted: 02/25/2015] [Indexed: 12/16/2022]
Abstract
The aim of the study was to find out whether peripheral blood leukocyte adiponectin receptors 1 and 2 (AdipoR1, AdipoR2) protein expression patterns (flow cytometry) differ between the primary hypertension children (n = 57) and healthy controls (n = 19) and if their expression levels are related to selected clinical parameters. The group of 26 patients [AdipoR(-)] showed lower and the group of 31 patients [AdipoR(+)] showed higher AdipoRs protein expression than the control and each other (P < 0.01 for neutrophils, P < 0.05 for monocytes). The AdipoR(+) leukocytes expressed higher AdipoR1 mRNA levels (RT-PCR) than AdipoR(-) ones and controls (P = 0.022 and P = 0.007, resp.). Despite greater BMI, the AdipoR(-) patients had unchanged serum adiponectin levels. In contrast, AdipoR(+) patients had lower serum adiponectin concentrations than the AdipoR(-) ones and controls (P < 0.001). The AdipoR(+) patients had higher blood pressure (P = 0.042) and greater carotid intima-media thickness (P = 0.017) than the AdipoR(-) ones. The stage of hypertension was associated with increased neutrophil but not monocyte AdipoR1 density (AdipoR1 MFI) (P < 0.05). Severe ambulatory hypertension was presented more often in AdipoR(+) patients than in AdipoR(-) ones (51.6% versus 26.9%, resp.; P < 0.01). In conclusion, neutrophil AdipoRs upregulation was associated with early stages of vascular injury, hypertension severity, and low serum levels of adiponectin.
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Lee SH, Hong HR, Han TK, Kang HS. Aerobic training increases the expression of adiponectin receptor genes in the peripheral blood mononuclear cells of young men. Biol Sport 2015; 32:181-6. [PMID: 26424919 PMCID: PMC4577554 DOI: 10.5604/20831862.1150298] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 12/01/2014] [Accepted: 02/12/2015] [Indexed: 11/13/2022] Open
Abstract
Little is known about the effect of exercise training on the expression of adiponectin receptor genes in peripheral blood mononuclear cells (PBMCs). In this study, we investigated the effects of aerobic training on the expression of AdipoR1 and AidpoR2 mRNAs in PBMCs, whole body insulin sensitivity, and circulating adiponectins in men. Thirty young men were randomly assigned to either a control (n=15) or an exercise (n=15) group. Subjects assigned to the exercise group underwent a 12-week jogging and/or running programme on a motor-driven treadmill at an intensity of 60%-75% of the age-based maximum heart rate with duration of 40 minutes per session and a frequency of 5 days per week. Two-way mixed ANOVA with repeated measures was used to test any significant time-by-group interaction effects for the measured variables at p=0.05. We found significant time-by-group interaction effects for waist circumference (p=0.001), VO2max (p<0.001), fasting insulin (p=0.016), homeostasis model assessment for insulin resistance (HOMA-IR) (p=0.010), area under the curve (AUC) for insulin response during the 75-g oral glucose tolerance test (p=0.002), high-molecular weight (HMW) adiponectin (p=0.016), and the PBMC mRNA levels of AdipoR1 (p<0.001) and AdipoR2 (p=0.001). The exercise group had significantly increased mRNA levels of AdipoR1 and AdipoR2 in PBMCs, along with increased whole body insulin sensitivity and HMW adiponectin, decreased waist circumference, and increased VO2max compared with the control group. In summary, the current findings suggest that exercise training modulates the expression of AdipoR1 and AdipoR2 mRNAs in PBMCs, implying that manipulation of the expression of these genes could be a potential surrogate for lifestyle intervention-mediated improvements of whole body insulin sensitivity and glucose homeostasis.
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Affiliation(s)
- S H Lee
- Pohang University of Science and Technology, Pohang, Republic of Korea
| | - H R Hong
- College of Sport Science, Sungkyunkwan University, Suwon, Republic of Korea
| | - T K Han
- College of Sport Science, Sungkyunkwan University, Suwon, Republic of Korea
| | - H S Kang
- College of Sport Science, Sungkyunkwan University, Suwon, Republic of Korea
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22
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Ebrahimi-Mamaeghani M, Mohammadi S, Arefhosseini SR, Fallah P, Bazi Z. Adiponectin as a potential biomarker of vascular disease. Vasc Health Risk Manag 2015; 11:55-70. [PMID: 25653535 PMCID: PMC4303398 DOI: 10.2147/vhrm.s48753] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The increasing prevalence of diabetes and its complications heralds an alarming situation worldwide. Obesity-associated changes in circulating adiponectin concentrations have the capacity to predict insulin sensitivity and are a link between obesity and a number of vascular diseases. One obvious consequence of obesity is a decrease in circulating levels of adiponectin, which are associated with cardiovascular disorders and associated vascular comorbidities. Human and animal studies have demonstrated decreased adiponectin to be an independent risk factor for cardiovascular disease. However, in animal studies, increased circulating adiponectin alleviates obesity-induced endothelial dysfunction and hypertension, and also prevents atherosclerosis, myocardial infarction, and diabetic cardiac tissue disorders. Further, metabolism of a number of foods and medications are affected by induction of adiponectin. Adiponectin has beneficial effects on cardiovascular cells via its antidiabetic, anti-inflammatory, antioxidant, antiapoptotic, antiatherogenic, vasodilatory, and antithrombotic activity, and consequently has a favorable effect on cardiac and vascular health. Understanding the molecular mechanisms underlying the regulation of adiponectin secretion and signaling is critical for designing new therapeutic strategies. This review summarizes the recent evidence for the physiological role and clinical significance of adiponectin in vascular health, identification of the receptor and post-receptor signaling events related to the protective effects of the adiponectin system on vascular compartments, and its potential use as a target for therapeutic intervention in vascular disease.
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MESH Headings
- Adiponectin/immunology
- Adiponectin/metabolism
- Adipose Tissue/immunology
- Adipose Tissue/metabolism
- Adipose Tissue/physiopathology
- Animals
- Biomarkers/metabolism
- Endothelium, Vascular/immunology
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/physiopathology
- Humans
- Muscle, Smooth, Vascular/immunology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/physiopathology
- Prognosis
- Protective Factors
- Receptors, Adiponectin/metabolism
- Risk Factors
- Signal Transduction
- Vascular Diseases/immunology
- Vascular Diseases/metabolism
- Vascular Diseases/physiopathology
- Vascular Diseases/prevention & control
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Affiliation(s)
| | - Somayeh Mohammadi
- Department of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Rafie Arefhosseini
- Department of Food Technology, Faculty of Nutrition Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parviz Fallah
- Department of Molecular Biology and Genetic Engineering, Stem Cell Technology Research Center, Tehran, Iran
| | - Zahra Bazi
- Department of Biotechnology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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23
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van Stijn CMW, Kim J, Lusis AJ, Barish GD, Tangirala RK. Macrophage polarization phenotype regulates adiponectin receptor expression and adiponectin anti-inflammatory response. FASEB J 2014; 29:636-49. [PMID: 25392268 DOI: 10.1096/fj.14-253831] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Adiponectin (APN), a pleiotropic adipokine that exerts anti-inflammatory, antidiabetic, and antiatherogenic effects through its receptors (AdipoRs), AdipoR1 and AdipoR2, is an important therapeutic target. Factors regulating AdipoR expression in monocyte/macrophages are poorly understood, and the significance of polarized macrophage activation in controlling AdipoR expression and the APN-mediated inflammatory response has not been investigated. The aim of this study was to investigate whether the macrophage polarization phenotype controls the AdipoR expression and APN-mediated inflammatory response. With the use of mouse bone marrow and peritoneal macrophages, we demonstrate that classical activation (M1) of macrophages suppressed (40-60% of control) AdipoR expression, whereas alternative activation (M2) preserved it. Remarkably, the macrophage polarization phenotypes produced contrasting inflammatory responses to APN (EC50 5 µg/ml). In M1 macrophages, APN induced proinflammatory cytokines, TNF-α, IL-6, and IL-12 (>10-fold of control) and AdipoR levels. In contrast, in M2 macrophages, APN induced the anti-inflammatory cytokine IL-10 without altering AdipoR expression. Furthermore, M1 macrophages adapt to a cytokine environment by reversing AdipoR expression. APN induced AdipoR mRNA and protein expression by up-regulating liver X receptor-α (LXRα) in macrophages. These results provide the first evidence that macrophage polarization is a key determinant regulating AdipoR expression and differential APN-mediated macrophage inflammatory responses, which can profoundly influence their pathogenic role in inflammatory and metabolic disorders.
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Affiliation(s)
- Caroline M W van Stijn
- *Division of Endocrinology, Diabetes & Hypertension andDivision of Cardiology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA; andNorthwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jason Kim
- *Division of Endocrinology, Diabetes & Hypertension andDivision of Cardiology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA; andNorthwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Aldons J Lusis
- *Division of Endocrinology, Diabetes & Hypertension andDivision of Cardiology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA; andNorthwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Grant D Barish
- *Division of Endocrinology, Diabetes & Hypertension andDivision of Cardiology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA; andNorthwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Rajendra K Tangirala
- *Division of Endocrinology, Diabetes & Hypertension andDivision of Cardiology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA; andNorthwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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Jackson WD, Woollard KJ. Targeting monocyte and macrophage subpopulations for immunotherapy: a patent review (2009 - 2013). Expert Opin Ther Pat 2014; 24:779-90. [PMID: 24773534 DOI: 10.1517/13543776.2014.914495] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Monocytes and macrophages are heterogeneous populations of effector cells in the innate immune system. Once thought to be obligatory precursors for macrophages, monocytes are now known to have several distinct sub-populations and their own independent functions. This separation of the two lineages has opened new therapeutic avenues in inflammation and created new technologies targeting the mononuclear phagocyte system (MPS). AREAS COVERED A search of Google Patents and PatentScope has revealed numerous patents targeting monocytes and macrophages. This review will focus on seven patents from 2009 to 2013, utilizing autologous monocyte and macrophage adoptive transfer, genetic manipulation of the MPS, therapeutic nanoparticles and liposomes or combinations of these strategies. Patents that target monocyte recruitment are also briefly reviewed. EXPERT OPINION While monocyte and macrophage targeting has yielded some promising results in animal models, these often fail to translate well to successful clinical trials. The paradigm of how cells in the MPS interact and evolve is constantly being updated, and caution must be exercised in developing immunomodulatory agents until this relationship is better understood.
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Affiliation(s)
- William D Jackson
- Imperial College London, Department of Medicine, Division of Immunology and Inflammation , London, W12 ONN , UK
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25
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Song J, Lee WT, Park KA, Lee JE. Association between risk factors for vascular dementia and adiponectin. BIOMED RESEARCH INTERNATIONAL 2014; 2014:261672. [PMID: 24860814 PMCID: PMC4016875 DOI: 10.1155/2014/261672] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/27/2014] [Accepted: 03/30/2014] [Indexed: 01/06/2023]
Abstract
Vascular dementia is caused by various factors, including increased age, diabetes, hypertension, atherosclerosis, and stroke. Adiponectin is an adipokine secreted by adipose tissue. Adiponectin is widely known as a regulating factor related to cardiovascular disease and diabetes. Adiponectin plasma levels decrease with age. Decreased adiponectin increases the risk of cardiovascular disease and diabetes. Adiponectin improves hypertension and atherosclerosis by acting as a vasodilator and antiatherogenic factor. Moreover, adiponectin is involved in cognitive dysfunction via modulation of insulin signal transduction in the brain. Case-control studies demonstrate the association between low adiponectin and increased risk of stroke, hypertension, and diabetes. This review summarizes the recent findings on the association between risk factors for vascular dementia and adiponectin. To emphasize this relationship, we will discuss the importance of research regarding the role of adiponectin in vascular dementia.
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Affiliation(s)
- Juhyun Song
- Department of Anatomy, Yonsei University College of Medicine, 50 Yonsei-ro, Seoul 120-752, Republic of Korea
| | - Won Taek Lee
- Department of Anatomy, Yonsei University College of Medicine, 50 Yonsei-ro, Seoul 120-752, Republic of Korea
| | - Kyung Ah Park
- Department of Anatomy, Yonsei University College of Medicine, 50 Yonsei-ro, Seoul 120-752, Republic of Korea
| | - Jong Eun Lee
- Department of Anatomy, Yonsei University College of Medicine, 50 Yonsei-ro, Seoul 120-752, Republic of Korea
- BK21 Plus Project for Medical Sciences and Brain Research Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
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26
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Caselli C, D'Amico A, Cabiati M, Prescimone T, Del Ry S, Giannessi D. Back to the heart: the protective role of adiponectin. Pharmacol Res 2014; 82:9-20. [PMID: 24657240 DOI: 10.1016/j.phrs.2014.03.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 02/25/2014] [Accepted: 03/06/2014] [Indexed: 12/15/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death worldwide and the prevalence of obesity and diabetes are increasing. In obesity, adipose tissue increases the secretion of bioactive mediators (adipokines) that may represent a key mechanism linking obesity to CVD. Adiponectin, extensively studied in metabolic diseases, exerts anti-diabetic, anti-atherogenic and anti-inflammatory activities. Due to these positive actions, the role of adiponectin in cardiovascular protection has been evaluated in recent years. In particular, for its potential therapeutic benefits in humans, adiponectin has become the subject of intense preclinical research. In the cardiovascular context, understanding of the cellular and molecular mechanisms underlying the adiponectin system, throughout its secretion, regulation and signaling, is critical for designing new drugs that target adiponectin system molecules. This review focused on recent advances regarding molecular mechanisms related to protective effects of the adiponectin system on both cardiac and vascular compartments and its potential use as a target for therapeutic intervention of CVD.
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Affiliation(s)
- C Caselli
- Consiglio Nazionale delle Ricerche (CNR), Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa 56100, Italy.
| | - A D'Amico
- Scuola Superiore S. Anna, Pisa, Italy
| | - M Cabiati
- Consiglio Nazionale delle Ricerche (CNR), Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa 56100, Italy
| | - T Prescimone
- Consiglio Nazionale delle Ricerche (CNR), Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa 56100, Italy
| | - S Del Ry
- Consiglio Nazionale delle Ricerche (CNR), Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa 56100, Italy
| | - D Giannessi
- Consiglio Nazionale delle Ricerche (CNR), Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa 56100, Italy
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27
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Yamamoto R, Ueki S, Moritoki Y, Kobayashi Y, Oyamada H, Konno Y, Tamaki M, Itoga M, Takeda M, Ito W, Chihara J. Adiponectin attenuates human eosinophil adhesion and chemotaxis: implications in allergic inflammation. J Asthma 2013; 50:828-35. [PMID: 23777560 DOI: 10.3109/02770903.2013.816725] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Growing evidence has shown an association between obesity and asthma. Adiponectin, an adipocyte-derived cytokine, is known to have anti-inflammatory effects with reduced concentrations in obese subjects. Recent findings raised the intriguing possibility that adiponectin might play a role in allergic inflammation, although the mechanistic basis for their relationship remains unclear. The purpose of this study was to examine whether adiponectin might affect functions of eosinophils, which play an important role in the pathogenesis of asthma. METHODS Human peripheral blood eosinophils were purified to study expression of adiponectin receptors AdipoR1 and AdipoR2 using RT-PCR and flow cytometry. The effect of adiponectin on eosinophil survival was investigated using annexin V and propidium iodide staining. Eotaxin-induced cell adhesion was investigated using ICAM-1-coated plates. A Boyden chamber and real-time horizontal migration system were used for eotaxin-directed chemotaxis assay. Expression of eotaxin receptor CCR3 and intracellular calcium influx were assessed by flow cytometry. RESULTS AdipoR1 and AdipoR2 were expressed in human eosinophils. Adiponectin did not affect eosinophil survival or CCR3 expression; however, eotaxin-enhanced adhesion was inhibited by pretreatment with adiponectin. Adiponectin also diminished eotaxin-directed chemotactic responses by disturbing both velocity and directionality. Calcium influx in response to eotaxin was attenuated by adiponectin. CONCLUSIONS These results indicate that adiponectin attenuates the eosinophil functions induced by eotaxin without affecting cell viability. The inhibitory effect was associated with diminished calcium signaling rather than altering of surface receptor expression. Increasing circulating adiponectin might be a novel therapeutic modality for treatment of asthma, especially in obese asthmatics.
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Affiliation(s)
- Rie Yamamoto
- Department of Infection, Allergy, Clinical Immunology and Laboratory Medicine, Akita University Graduate School of Medicine , Akita , Japan
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28
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Tong G, Wang N, Leng J, Tong X, Shen Y, Yang J, Ye X, Zhou L, Zhou Y. Common variants in adiponectin gene are associated with coronary artery disease and angiographical severity of coronary atherosclerosis in type 2 diabetes. Cardiovasc Diabetol 2013; 12:67. [PMID: 23590551 PMCID: PMC3648457 DOI: 10.1186/1475-2840-12-67] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 04/15/2013] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Adiponectin, an adipokine facilitating insulin action, has antiatherogenic effects. This study investigated whether common single nucleotide polymorphisms (SNPs) in the adiponectin gene influenced plasma adiponectin level and whether they were associated with the risk of coronary artery disease (CAD) and its angiographical severity in type 2 diabetes in Chinese population. METHODS 11 tagging SNPs were genotyped in 1110 subjects with or without CAD in type 2 diabetes. Variants of adiponectin gene were determined by Taqman polymerase chain reaction method. The plasma adiponectin concentrations were measured by sandwich enzyme-linked immunosorbent assay. The severity and extent of coronary atherosclerosis were assessed using the angiographic Gensini score and Sullivan Extent score. RESULTS Among the 11 SNPs, the minor G allele of SNP rs266729 was significantly associated with higher odds of CAD (odds ratio (95% CI) = 1.49 (1.10 - 2.16), P = 0.022) after adjusting for covariates. In stepwise multivariate logistic regression, SNP rs266729 was a significant independent factor of CAD. Multivariate linear regression analysis revealed that rs266729 (β = -0.101, P < 0.0001), rs182052 (β = -0.044, P = 0.0035), and rs1501299 (β = 0.073, P < 0.0001) were significantly associated with adiponectin level, and also indicated that the minor G allele of SNP rs266729 had higher Gensini score (β = 0.139, P < 0.001) and Sullivan Extent score (β = 0.107, P < 0.001). Haplotypes analysis revealed different haplotype distributions in case and control subjects (P = 0.0003), with two common haplotypes GGG and GAG of the rs266729, rs182052, and rs1501299 being associated in heterozygotes with a greater than threefold increase in cardiovascular risk (odds ratio (95% CI)=3.39 (1.83 - 6.30), P = 0.0001). CONCLUSIONS In our population, genetic variants in the adiponectin gene influence plasma adiponectin levels, and one of them is a strong determinant of CAD susceptibility and its angiographical severity in type 2 diabetes. This study has provided further evidence for a role of adiponectin in the development of CAD.
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Affiliation(s)
- Guoxin Tong
- Department of Cardiology, Capital Medical University, Beijing, China
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29
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Caselli C, Lionetti V, Cabiati M, Prescimone T, Aquaro GD, Ottaviano V, Bernini F, Mattii L, Del Ry S, Giannessi D. Regional evidence of modulation of cardiac adiponectin level in dilated cardiomyopathy: pilot study in a porcine animal model. Cardiovasc Diabetol 2012; 11:143. [PMID: 23164042 PMCID: PMC3537584 DOI: 10.1186/1475-2840-11-143] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 11/07/2012] [Indexed: 12/30/2022] Open
Abstract
Background The role of systemic and myocardial adiponectin (ADN) in dilated cardiomyopathy is still debated. We tested the regulation of both systemic and myocardial ADN and the relationship with AMP-activated protein kinase (AMPK) activity in a swine model of non-ischemic dilated cardiomyopathy. Methods and results Cardiac tissue was collected from seven instrumented adult male minipigs by pacing the left ventricular (LV) free wall (180 beats/min, 3 weeks), both from pacing (PS) and opposite sites (OS), and from five controls. Circulating ADN levels were inversely related to global and regional cardiac function. Myocardial ADN in PS was down-regulated compared to control (p < 0.05), yet ADN receptor 1 was significantly up-regulated (p < 0.05). No modifications of AMPK were observed in either region of the failing heart. Similarly, myocardial mRNA levels of PPARγ, PPARα, TNFα, iNOS were unchanged compared to controls. Conclusions Paradoxically, circulating ADN did not show any cardioprotective effect, confirming its role as negative prognostic biomarker of heart failure. Myocardial ADN was reduced in PS compared to control in an AMPK-independent fashion, suggesting the occurrence of novel mechanisms by which reduced cardiac ADN levels may regionally mediate the decline of cardiac function.
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Affiliation(s)
- Chiara Caselli
- Consiglio Nazionale delle Ricerche (CNR), Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa, Italy
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30
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Yuan P, Yu Y, Luo J, Tian F, Zhang H, Chang S, Ramachandran R, Zhang L, Song J. Lipoprotein metabolism differs between Marek's disease susceptible and resistant chickens. Poult Sci 2012; 91:2598-605. [PMID: 22991546 DOI: 10.3382/ps.2011-01843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Marek's disease (MD) is a lymphoproliferative disease of chickens caused by MD virus and has an important impact on the poultry industry worldwide. There have been reports showing different physiological characteristics between MD susceptible and resistant chickens. However, little is known about whether there are differences in lipid metabolism between MD susceptible and resistant lines of chickens. In this study, we examined the BW and the weight of tissues (abdominal fat, breast muscle with bone, leg muscle with bone, liver, and heart), the lipoprotein-cholesterol concentrations and distributions, and the plasma and tissue levels of adiponectin and its receptors in the highly resistant and susceptible lines during chicken growth. Our data showed that the increase in total cholesterol during growth was mainly due to the elevation of cholesterol in the low-density/very low-density lipoprotein fraction in MD susceptible chickens, whereas the increase of total cholesterol was mainly attributable to the increase in high-density lipoprotein-cholesterol in MD resistant chickens. Meanwhile, the MD resistant line appeared to have increased plasma adiponectin levels compared with MD susceptible chickens during growth. Taken together, our data suggested that lipoprotein-cholesterol and adiponectin metabolism are different between MD susceptible and resistant chickens.
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Affiliation(s)
- P Yuan
- Department of Animal & Avian Sciences, University of Maryland, College Park, MD, USA
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31
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Nakajima H, Nakajima K, Tarutani M, Sano S. Clear association between serum levels of adipokines and T-helper 17-related cytokines in patients with psoriasis. Clin Exp Dermatol 2012; 38:66-70. [PMID: 23083105 DOI: 10.1111/j.1365-2230.2012.04465.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Psoriasis represents one of the T-helper (Th)17-mediated autoimmune diseases, and has been shown to be associated with metabolic syndrome (MetS). It has been reported that some adipokines and Th17-related cytokines are altered in patients with psoriasis. AIM To examine the relationship between levels of adipokines and Th17-related cytokines in the serum of patients with psoriasis compared with healthy controls. METHODS We enrolled 30 patients with psoriasis and 30 normal controls in the study, and used ELISA to measure serum adipokines and Th17-related cytokines. The association between each adipokine and each cytokine was determined using Pearson correlation analysis. Multiple regression analysis using all adipokines and Th17-related cytokines as covariates was also performed. RESULTS Pearson correlation analysis showed a strong positive association between chemerin and resistin levels and between adiponectin and high molecular weight adiponectin in normal controls. By contrast, in patients with psoriasis, resistin levels were significantly positively associated with tumour necrosis factor-α, while there was a strong negative association between retinol binding protein-4 and interleukin (IL)-6 levels. Interestingly, a marked positive correlation between IL-22 and adiponectin was also found in patients with psoriasis. Leptin levels correlated positively with IL-6 in patients with psoriasis, but this did not reach significance. The correlations identified by the multiple regression analyses were almost identical to those from the Pearson analyses. CONCLUSIONS These data suggest that distinct interaction between adipokines and Th17 cytokines is involved in the pathogenesis of psoriasis.
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Affiliation(s)
- H Nakajima
- Department of Dermatology, Kochi Medical School, Kochi University, Kohasu, Japan.
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Breitfeld J, Stumvoll M, Kovacs P. Genetics of adiponectin. Biochimie 2012; 94:2157-63. [DOI: 10.1016/j.biochi.2012.03.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Accepted: 03/02/2012] [Indexed: 11/24/2022]
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Ikonomidis I, Michalakeas CA, Parissis J, Paraskevaidis I, Ntai K, Papadakis I, Anastasiou-Nana M, Lekakis J. Inflammatory markers in coronary artery disease. Biofactors 2012; 38:320-8. [PMID: 22628054 DOI: 10.1002/biof.1024] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Accepted: 04/18/2012] [Indexed: 12/20/2022]
Abstract
Coronary artery disease (CAD) is one of the most common manifestations of atherosclerosis. Inflammation is considered one of the major processes that contribute to atherogenesis. Inflammation plays an important role not only on the initiation and progression of atherosclerosis but also on plaque rupture, an event that leads to acute vascular events. Various biomarkers express different pathways and pathophysiologic mechanisms of cardiovascular disease, and inflammatory biomarkers express different parts of the atherogenic process, regarding the initiation and progression of atherosclerosis or the destabilization of the atherosclerotic plaque. Therefore, inflammatory biomarkers may prove to be useful in the detection, staging, and prognosis of patients with CAD. Furthermore, the fact that inflammatory processes are essential steps in the course of the disease offers future therapeutic targets for the interruption of the atherogenic process or for the management of acute events.
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Affiliation(s)
- Ignatios Ikonomidis
- 2nd Cardiology Department, University of Athens, Attikon Hospital, Athens, Greece.
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Guo Z, Zhang R, Li J, Xu G. Effect of telmisartan on the expression of adiponectin receptors and nicotinamide adenine dinucleotide phosphate oxidase in the heart and aorta in type 2 diabetic rats. Cardiovasc Diabetol 2012; 11:94. [PMID: 22873349 PMCID: PMC3471013 DOI: 10.1186/1475-2840-11-94] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 07/23/2012] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Diabetic cardiovascular disease is associated with decreased adiponectin and increased oxidative stress. This study investigated the effect of telmisartan on the expression of adiponectin receptor 2 (adipoR2) and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunits in the heart and the expression of adiponectin receptor 1 (adipoR1) in aorta in type 2 diabetic rats. METHODS Type 2 diabetes was induced by high-fat and high-sugar diet and intraperitoneal injection of a low dose of streptozotocin (STZ). Heart function, adipoR2, p22phox, NOX4, glucose transporter 4(GLUT4), monocyte chemoattractant protein-1(MCP-1) and connective tissue growth factor (CTGF)in the heart, and adipoR1, MCP-1 and nuclear factor kappa B (NF-κB) in aorta were analyzed in controls and diabetic rats treated with or without telmisartan (5mg/kg/d) by gavage for 12 weeks. RESULTS Heart function, plasma and myocardial adiponectin levels, the expression of myocardial adipoR2 and GLUT4 were significantly decreased in diabetic rats (P <0.05). The expression of myocardial p22phox, NOX4, MCP-1, and CTGF was significantly increased in diabetic rats (P <0.05). The expression of adipoR1 was decreased and the expression of MCP-1 and NF-κB was increased in the abdominal aorta in diabetic rats (P <0.05). Telmisartan treatment significantly attenuated these changes in diabetic rats (P <0.05). CONCLUSIONS Our results suggest that telmisartan upregulates the expression of myocardial adiponectin, its receptor 2 and GLUT4. Simultaneously, it downregulates the expression of myocardial p22phox, NOX4, MCP-1, and CTGF, contributing so to the improvement of heart function in diabetic rats. Telmisartan also induces a protective role on the vascular system by upregulating the expression of adipoR1 and downregulating the expression of MCP-1 and NF-κB in the abdominal aorta in diabetic rats.
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Affiliation(s)
- Zhixin Guo
- Department of Endocrinology, Second Hospital, Shanxi Medical University, 382 Wuyi Road, Taiyuan, Shanxi, P.R. China.
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Arterial stiffness is associated with increased monocyte expression of adiponectin receptor mRNA and protein in patients with coronary artery disease. Am J Hypertens 2012; 25:746-55. [PMID: 22534793 DOI: 10.1038/ajh.2012.42] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Arterial stiffness and carotid intima-media thickness (IMT) constitute validated cardiovascular prognostic markers. Adiponectin and its receptors 1 (AdipoR1) and 2 (AdipoR2) are involved in coronary artery disease (CAD). We investigated whether AdipoR1 and R2 mRNA and protein expression are associated with arterial stiffness, IMT and extent of coronary atherosclerosis. METHODS We studied 71 patients (61 men, 10 women) with angiographically proven CAD. We measured: (i) monocyte expression of AdipoR1 and AdipoR2 mRNA (quantitative real-time PCR) and protein expression (flow cytometry) (iii) adiponectin, metalloproteinase-9 (MMP-9) and C-reactive protein (CRP) blood levels, (iv) carotid-femoral artery pulse wave velocity (PWV) and carotid IMT. RESULTS Patients with multi-vessel CAD had higher AdipoR1 and AdipoR2 mRNA than those with single-vessel (P < 0.05). PWV was associated with AdipoR1 mRNA (r = 0.474), AdipoR1 protein (r = 0.228), AdipoR2 mRNA (r = 0.716), AdipoR2-protein (r = 0.261), adiponectin (r = 0.236), and MMP-9 (r = 0.350) (P < 0.05, for all correlations). After adjustment for age, sex, waist-hip ratio, and mean blood pressure both AdipoR1 and AdipoR2 mRNA remained independent determinants of PWV (R(2) = 0.35 and R(2) = 0.57, P < 0.05). IMT was also associated with AdipoR2 mRNA, AdipoR2 protein, and MMP-9 (P < 0.05). Increased expression of ADR2 mRNA significantly related to MMP-9 (r = 0.210), and CRP (r = 0.531) (P < 0.05). CONCLUSION Increased mRNA and protein expression of adiponectin receptors is related with increased aortic stiffness, coronary and peripheral atherosclerosis in patients with CAD. The interrelation of AdipoR2 with inflammatory markers, PWV and IMT suggests a compensatory increase of these receptors to counteract the excess inflammatory and atherogenic process in CAD. Thus, adiponectin receptors may provide a potential therapeutic target of agents activating their beneficial action.American Journal of Hypertension 2012; doi:10.1038/ajh.2012.42.
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Abstract
Numerous lines of evidence implicate a role for adipose tissue in the development of a systemic inflammatory state that contributes to metabolic, cardiovascular, and autoimmune disorders. Serum levels of adiponectin, a cytokine that is mainly produced by adipocytes, are paradoxically decreased in individuals with obesity, type 2 diabetes, and cardiovascular disease compared with healthy individuals. Mounting experimental data have revealed that adiponectin exhibits beneficial effects on energy homeostasis and cardiovascular functions that are attributed to its direct modulation of a proinflammatory factor, interleukin-6. However, some recent studies indicate that adiponectin appears to function as an inducer of proinflammatory factors and the elevated adiponectin level aggravates inflammation response in autoimmune disease. In this review, we focus on the action of adiponectin in chronic inflammation-associated metabolic, cardiovascular, and autoimmune disorders. In particular, we discuss the interaction between adiponectin and interleukin-6 in adipocytes and cardiovascular cells.
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Affiliation(s)
- Li Li
- Department of Physiology and Pathophysiology, Peking University Health Science Center and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China
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Dadson K, Liu Y, Sweeney G. Adiponectin action: a combination of endocrine and autocrine/paracrine effects. Front Endocrinol (Lausanne) 2011; 2:62. [PMID: 22649379 PMCID: PMC3355882 DOI: 10.3389/fendo.2011.00062] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Accepted: 10/10/2011] [Indexed: 12/15/2022] Open
Abstract
The widespread physiological actions of adiponectin have now been well characterized as clinical studies and works in animal models have established strong correlations between circulating adiponectin level and various disease-related outcomes. Thus, conventional thinking attributes many of adiponectin's beneficial effects to endocrine actions of adipose-derived adiponectin. However, it is now clear that several tissues can themselves produce adiponectin and there is growing evidence that locally produced adiponectin can mediate functionally important autocrine or paracrine effects. In this review article we discuss regulation of adiponectin production, its mechanism of action via receptor isoforms and signaling pathways, and its principal physiological effects (i.e., metabolic and cardiovascular). The role of endocrine actions of adiponectin and changes in local production of adiponectin or its receptors in whole body physiology is discussed.
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Affiliation(s)
- Keith Dadson
- Department of Biology, York UniversityToronto, ON, Canada
| | - Ying Liu
- Department of Biology, York UniversityToronto, ON, Canada
| | - Gary Sweeney
- Department of Biology, York UniversityToronto, ON, Canada
- Institut Pasteur KoreaSeoul, South Korea
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Siitonen N, Pulkkinen L, Lindström J, Kolehmainen M, Schwab U, Eriksson JG, Ilanne-Parikka P, Keinänen-Kiukaanniemi S, Tuomilehto J, Uusitupa M. Association of ADIPOR2 gene variants with cardiovascular disease and type 2 diabetes risk in individuals with impaired glucose tolerance: the Finnish Diabetes Prevention Study. Cardiovasc Diabetol 2011; 10:83. [PMID: 21943112 PMCID: PMC3196906 DOI: 10.1186/1475-2840-10-83] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2011] [Accepted: 09/24/2011] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Adiponectin is an adipokine with insulin-sensitising and anti-atherogenic effects. Two receptors for adiponectin, ADIPOR1 and ADIPOR2, have been characterized that mediate effects of adiponectin in various tissues. We examined whether genetic variation in ADIPOR2 predicts the development of cardiovascular disease (CVD) and/or Type 2 Diabetes (T2DM) in individuals with impaired glucose tolerance (IGT) participating the Finnish Diabetes Prevention Study (DPS). METHODS CVD morbidity and mortality data were collected during a median follow-up of 10.2 years (range 1-13 years) and conversion from IGT to T2DM was assessed during a median follow-up of 7 years (range 1-11 years). Altogether eight SNPs in the ADIPOR2 locus were genotyped in 484 participants of the DPS. Moreover, the same SNPs were genotyped and the mRNA expression levels of ADIPOR2 were determined in peripheral blood mononuclear cells and subcutaneous adipose tissue samples derived from 56 individuals participating in the Genobin study. RESULTS In the DPS population, four SNPs (rs10848554, rs11061937, rs1058322, rs16928751) were associated with CVD risk, and two remained significant (p = 0.014 for rs11061937 and p = 0.020 for rs1058322) when all four were included in the same multi-SNP model. Furthermore, the individuals homozygous for the rare minor alleles of rs11061946 and rs11061973 had increased risk of converting from IGT to T2DM. Allele-specific differences in the mRNA expression levels for the rs1058322 variant were seen in peripheral blood mononuclear cells derived from participants of the Genobin study. CONCLUSIONS Our results suggest that SNPs in the ADIPOR2 may modify the risk of CVD in individuals with IGT, possibly through alterations in the mRNA expression levels. In addition an independent genetic signal in ADIPOR2 locus may have an impact on the risk of developing T2DM in individuals with IGT. TRIAL REGISTRATION NUMBER ClinicalTrials.gov NCT00518167.
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Affiliation(s)
- Niina Siitonen
- Department of Clinical Nutrition and Food and Health Research Centre, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Leena Pulkkinen
- Department of Clinical Nutrition and Food and Health Research Centre, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Jaana Lindström
- Department of Health Promotion and Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Marjukka Kolehmainen
- Department of Clinical Nutrition and Food and Health Research Centre, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Ursula Schwab
- Department of Clinical Nutrition and Food and Health Research Centre, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
- Institute of Medicine, Clinical Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Johan G Eriksson
- Department of Health Promotion and Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
- Folkhalsan Research Centre, Helsinki, Finland
- Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland
- Vasa Central Hospital, Vasa, Finland
- Unit of General Practice, Helsinki University Central Hospital, Helsinki, Finland
| | - Pirjo Ilanne-Parikka
- Diabetes Centre, Finnish Diabetes Association, Tampere, Finland
- Science Centre, Pirkanmaa Hospital District, Tampere University Hospital, Tampere, Finland
| | - Sirkka Keinänen-Kiukaanniemi
- Institute of Health Sciences, University of Oulu, Oulu, Finland
- Unit of General Practice, Oulu University Hospital, Oulu, Finland
- Health Centre of Oulu, Oulu Finland
| | - Jaakko Tuomilehto
- Department of Health Promotion and Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
- South Ostrobothnia Central Hospital, Seinäjoki, Finland
- Department of Preventive and Clinical Medicine, Danube-Universität Krems, Krems, Austria
| | - Matti Uusitupa
- Department of Clinical Nutrition and Food and Health Research Centre, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
- Research Unit, Kuopio University Hospital, Kuopio, Finland
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