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Ma YL, Xu M, Cen XF, Qiu HL, Guo YY, Tang QZ. Tectorigenin protects against cardiac fibrosis in diabetic mice heart via activating the adiponectin receptor 1-mediated AMPK pathway. Biomed Pharmacother 2024; 174:116589. [PMID: 38636400 DOI: 10.1016/j.biopha.2024.116589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/30/2024] [Accepted: 04/10/2024] [Indexed: 04/20/2024] Open
Abstract
Diabetic cardiomyopathy (DCM) is a common severe complication of diabetes that occurs independently of hypertension, coronary artery disease, and valvular cardiomyopathy, eventually leading to heart failure. Previous studies have reported that Tectorigenin (TEC) possesses extensive anti-inflammatory and anti-oxidative stress properties. In this present study, the impact of TEC on diabetic cardiomyopathy was examined. The model of DCM in mice was established with the combination of a high-fat diet and STZ treatment. Remarkably, TEC treatment significantly attenuated cardiac fibrosis and improved cardiac dysfunction. Concurrently, TEC was also found to mitigate hyperglycemia and hyperlipidemia in the DCM mouse. At the molecular level, TEC is involved in the activation of AMPK, both in vitro and in vivo, by enhancing its phosphorylation. This is achieved through the regulation of endothelial-mesenchymal transition via the AMPK/TGFβ/Smad3 pathway. Furthermore, it was demonstrated that the level of ubiquitination of the adiponectin receptor 1 (AdipoR1) protein is associated with TEC-mediated improvement of cardiac dysfunction in DCM mice. Notably the substantial reduction of myocardial fibrosis. In conclusion, TEC improves cardiac fibrosis in DCM mice by modulating the AdipoR1/AMPK signaling pathway. These findings suggest that TEC could be an effective therapeutic agent for the treatment of diabetic cardiomyopathy.
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Affiliation(s)
- Yu-Lan Ma
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Man Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Xian-Feng Cen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Hong-Liang Qiu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Ying-Ying Guo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China.
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Cheng L, Shi C, Nakamura S, Esaki N, Ichiba Y, Tanaka M, Sakai K, Matsui T. Adiponectin-Receptor Agonistic Dipeptide Tyr-Pro Stimulates the Acetylcholine Nervous System in NE-4C Cells. J Agric Food Chem 2024; 72:7121-7129. [PMID: 38511275 DOI: 10.1021/acs.jafc.3c07821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
The dipeptide Tyr-Pro has physiological potential for intact transportability into the brain parenchyma, prevention of cognitive impairment, and an adiponectin receptor 1 (AdipoR1) agonistic effect. The present study aimed to understand the effect of Tyr-Pro on the acetylcholine (ACh) nervous system and its underlying mechanism in NE-4C nerve cells. Concentration-dependent ACh production was induced by stimulation with Tyr-Pro and AdipoRon (an AdipoR1 agonist), along with the expression of AdipoR1 and choline acetyltransferase (ChAT) in NE-4C cells. By knocking down AdipoR1 in the cells, Tyr-Pro promoted ChAT expression, along with the activations of AMPK and ERK 1/2. Tyr-Pro did not alter acetylcholinesterase or ACh receptors, indicating that the dipeptide might operate as an ACh accelerator in nerve cells. This study provides the first evidence that the AdipoR1 agonistic Tyr-Pro is a promising dipeptide responsible for the stimulation of the ACh nervous system by AdipoR1-induced ChAT activation.
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Affiliation(s)
- Lihong Cheng
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Caiyue Shi
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Saya Nakamura
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Nana Esaki
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yuka Ichiba
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Mitsuru Tanaka
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kenta Sakai
- Research and Development Center for Five-Sense Devices, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Toshiro Matsui
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School of Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Research and Development Center for Five-Sense Devices, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Hafiane A. Adiponectin-mediated regulation of the adiponectin cascade in cardiovascular disease: Updates. Biochem Biophys Res Commun 2024; 694:149406. [PMID: 38134479 DOI: 10.1016/j.bbrc.2023.149406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/03/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
The endocrine function of white adipose tissue is characterized by the synthesis of one its main hormones: adiponectin. Although the biological role of adiponectin has not been fully defined, clinical and experimental observations have shown that low plasma concentrations of adiponectin participate in the prevalence of insulin resistance and cardiovascular diseases, mainly in obese patients. Adiponectin also exerts its effects on the heart and blood vessels, thereby influencing their physiology. Studying the effects of adiponectin presents some complexities, primarily due to potential cross-interactions and interference with other pathways, such as the AdipoR1/R2 pathways. Under optimal conditions, the activation of the adiponectin cascade may involve signals such as AMPK and PPARα. Interestingly, these pathways may trigger similar responses, such as fatty acid oxidation. Understanding the downstream effectors of these pathways is crucial to comprehend the extent to which adiponectin signaling impacts metabolism. In this review, the aim is to explore the current mechanisms that regulate the adiponectin pathways. Additionally, updates on the major downstream factors involved in adiponectin signaling are provided, specifically in relation to metabolic syndrome and atherosclerosis.
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Affiliation(s)
- Anouar Hafiane
- Research Institute, McGill University Health Center, Montreal, QC, Canada.
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Ye L, Gao Y, Li X, Liang X, Yang Y, Zhang R. Celastrol attenuates HFD-induced obesity and improves metabolic function independent of adiponectin signaling. Arch Physiol Biochem 2023:1-7. [PMID: 37642392 DOI: 10.1080/13813455.2023.2250929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/08/2023] [Indexed: 08/31/2023]
Abstract
Backgound: Celastrol, a leptin sensitiser, has been shown to inhibit food intake and reduce body weight in diet-induced obese mice, making it a potential treatment for obesity and metabolic diseases. Adiponectin signalling has been reported to play an important role in the treatment of obesity, inflammation, and non-alcoholic fatty liver disease.Materials and methods: Wild-type (WT) and AdipoR1 knockout (AdipoR1-/-) mice were placed on a chow diet or a high-fat diet (HFD) and several metabolic parameters were measured. Celastrol was then administered to the HFD-induced mice and the response of WT and AdipoR1-/- mice to celastrol in terms of body weight, blood glucose, and food intake was also recorded.Results: AdipoR1 knockout caused elevated blood glucose and lipids, impaired glucose tolerance and insulin resistance in mice, as well as increased susceptibility to HFD-induced obesity. After 14 days of treatment, WT and AdipoR1-/- mice showed significant reductions in body weight and blood glucose and improvements in glucose tolerance.Conclusion: The present study demonstrated that AdipoR1 plays a critical role in metabolic regulation and that the improvement of weight and metabolic function by celastrol is independent of the AdipoR1-mediated signalling pathway.
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Affiliation(s)
- Ling Ye
- Department of Postgraduate, Anhui University of Traditional Chinese Medicine, Hefei, People's Republic of China
- Department of Pharmacology, Biocytogen Pharmaceuticals (Beijing) Co, Ltd, Beijing, People's Republic of China
- Joint Graduate School, Yangtze Delta Drug Advanced Research Institute, Nantong, People's Republic of China
| | - Yan Gao
- Joint Graduate School, Yangtze Delta Drug Advanced Research Institute, Nantong, People's Republic of China
- Institute of Innovative Medicine, Biocytogen Pharmaceuticals (Beijing) Co, Ltd, Beijing, People's Republic of China
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, People's Republic of China
| | - Xuecheng Li
- Department of Pharmacology, Biocytogen Pharmaceuticals (Beijing) Co, Ltd, Beijing, People's Republic of China
| | - Xiaoshuang Liang
- Department of Pharmacology, Biocytogen Pharmaceuticals (Beijing) Co, Ltd, Beijing, People's Republic of China
| | - Yi Yang
- Joint Graduate School, Yangtze Delta Drug Advanced Research Institute, Nantong, People's Republic of China
- Institute of Innovative Medicine, Biocytogen Pharmaceuticals (Beijing) Co, Ltd, Beijing, People's Republic of China
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, People's Republic of China
| | - Rufeng Zhang
- Department of Pharmacology, Biocytogen Pharmaceuticals (Beijing) Co, Ltd, Beijing, People's Republic of China
- Institute of Innovative Medicine, Biocytogen Pharmaceuticals (Beijing) Co, Ltd, Beijing, People's Republic of China
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Chen YL, Ma YC, Tang J, Zhang D, Zhao Q, Liu JJ, Tang HS, Zhang JY, He GH, Zhong CH, Wu YT, Wen HR, Ma LQ, Zou CG. Physical exercise attenuates age-related muscle atrophy and exhibits anti-ageing effects via the adiponectin receptor 1 signalling. J Cachexia Sarcopenia Muscle 2023. [PMID: 37222007 PMCID: PMC10401527 DOI: 10.1002/jcsm.13257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 03/09/2023] [Accepted: 04/15/2023] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND Although the adiponectin signalling exerts exercise-mimicking effects, whether this pathway contributes to the anti-ageing benefits of physical exercise has not been established yet. METHODS Swim exercise training and wheel running were used to measure lifespan in the nematode Caenorhabditis elegans and skeletal muscle quality in mice, respectively. Muscle weight, muscle fibre cross-sectional area (CSA) and myonuclei number were used to evaluate muscle mass. RNA sequencing (RNA-Seq) analysis of skeletal muscle in exercised mice was used to study the underlying mechanisms. Western blot and immunofluorescence were performed to explore autophagy- and senescence-related markers. RESULTS The C. elegans adiponectin receptor PAQR-1/AdipoR1, but not PAQR-2/AdipoR2, was activated (3.55-fold and 3.48-fold increases in p-AMPK on Days 1 and 6, respectively, P < 0.001), which was involved in lifespan extension in exercised worms. Exercise training increased skeletal muscle mass index (1.29-fold, P < 0.01), muscle weight (1.75-fold, P < 0.001), myonuclei number (1.33-fold, P < 0.05), muscle fibre CSA (1.39-fold, P < 0.05) and capillary abundance (2.19-fold, P < 0.001 for capillary density; 1.58-fold, P < 0.01 for capillary number) in aged mice. Physical exercise reduced protein (2.94-fold, P < 0.001) and mRNA levels (1.70-fold, P < 0.001) of p16INK4a , a marker for cellular senescence, in skeletal muscle of aged mice. These beneficial effects of exercise on skeletal muscle of mice were dependent on AdipoR1. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis for differentially expressed genes in skeletal muscle between exercised mice with and without AdipoR1 knockdown by RNA-Seq analysis revealed that several KEGG pathways, such as 'AMPK signalling pathway' (P < 0.001), 'FOXO signalling pathway' (P < 0.001) and 'autophagy' (P < 0.001) were overrepresented. Knockdown of FoxO3a inhibited exercise-mediated beneficial effects on skeletal muscle quality of mice by inhibiting autophagy/mitophagy (3.81-fold reduction in LC3-II protein, P < 0.001; 1.53-fold reduction in BNIP3 protein, P < 0.05). Knockdown of daf-16, the FoxO homologue in C. elegans, reduced autophagy (2.77-fold and 2.06-fold reduction in GFP::LGG-1 puncta in seam cells and the intestine, respectively, P < 0.05) and blocked lifespan extension by exercise in worms. CONCLUSIONS Our findings provide insights into how the AdipoR1 pathway has an impact on the anti-ageing benefits of exercise and implicate that activation of the AdipoR1 signalling may represent a potential therapeutic strategy for reducing age-related loss of skeletal muscle.
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Affiliation(s)
- Yuan-Li Chen
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
- Faculty of Basic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Yi-Cheng Ma
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
| | - Jie Tang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, Yunnan, China
| | - Dan Zhang
- Department of Digestive Diseases, The First Affiliated Hospital, Kunming Medical University, Kunming, Yunnan, China
| | - Qiu Zhao
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
| | - Jian-Jun Liu
- Institute of Biomedical Engineering, Kunming Medical University, Kunming, Yunnan, China
| | - Hong-Shu Tang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
| | - Jin-Yu Zhang
- Faculty of Basic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Guang-Hui He
- Faculty of Basic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Chi-Hui Zhong
- Faculty of Basic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Yu-Tong Wu
- Faculty of Basic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Heng-Ruo Wen
- Faculty of Basic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Lan-Qing Ma
- Department of Digestive Diseases, The First Affiliated Hospital, Kunming Medical University, Kunming, Yunnan, China
| | - Cheng-Gang Zou
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
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Sun Z, Wang M, Xu L, Li Q, Zhao Z, Liu X, Meng F, Liu J, Wang W, Li C, Jiang S. PPARγ/Adiponectin axis attenuates methamphetamine-induced conditional place preference via the hippocampal AdipoR1 signaling pathway. Prog Neuropsychopharmacol Biol Psychiatry 2023; 125:110758. [PMID: 36972780 DOI: 10.1016/j.pnpbp.2023.110758] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
Methamphetamine (METH) is a highly addictive psychostimulant. The adipocyte-derived hormone adiponectin has a broad spectrum of functions in the brain. However, limited research has been conducted on the effect of adiponectin signaling on METH-induced conditioned place preference (CPP) and knowledge of the underlying neural mechanisms is scarce. The METH induced adult male C57/BL6J mice model were used for testing the therapeutic activities of intraperitoneal injection of AdipoRon or Rosiglitazone, and AdipoR1 overexpression in hippocampal dentate gyrus (DG), and chemogenetic inhibiting the neural activity of DG, and the changes of neurotrophic factors, synaptic molecules, and glutamate receptors, and inflammatory cytokines were also measured. We found that adiponectin expression was significantly reduced in METH addicted patients and mice. Our findings also showed that injection of AdipoRon or Rosiglitazone alleviated the METH-induced CPP behavior. Moreover, the expression of AdipoR1 in the hippocampus was also reduced, and AdipoR1 overexpression blocked the development of METH-induced CPP behavior through regulatory effects on neurotrophic factors, synaptic molecules, and glutamate receptors. The observed inhibitory neural activity of the hippocampal dentate gyrus (DG) induced via a chemogenetic approach produced a therapeutic effect on the METH-induced CPP behavior. Finally, we identified an abnormal expression of some key inflammatory cytokines through the PPARγ/Adiponectin/AdipoR1 axis. This study demonstrates that adiponectin signaling is a promising diagnostic and therapeutic target for METH addiction.
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Affiliation(s)
- Zongyue Sun
- Department of Physiology, Binzhou Medical University, Shandong 264003, China; Medical Research Center, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China; Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China
| | - Meiqin Wang
- Department of Physiology, Binzhou Medical University, Shandong 264003, China; Medical Research Center, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China; Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China
| | - Lei Xu
- Department of Physiology, Binzhou Medical University, Shandong 264003, China; Medical Research Center, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China; Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China
| | - Qiongyu Li
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China; Medical Research Center, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China; Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China
| | - Zhongyi Zhao
- Department of Physiology, Binzhou Medical University, Shandong 264003, China
| | - Xuehao Liu
- Department of Physiology, Binzhou Medical University, Shandong 264003, China
| | - Fantao Meng
- Medical Research Center, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China; Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China
| | - Jing Liu
- Medical Research Center, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China; Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China
| | - Wentao Wang
- Medical Research Center, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China; Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China
| | - Chen Li
- Medical Research Center, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China; Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong 256603, China.
| | - Shujun Jiang
- Department of Physiology, Binzhou Medical University, Shandong 264003, China.
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Chen Z, Yang H, Ren Y, Yang Z, Huang J, Li C, Xiong Y, Yu B. Distinct roles of ADIPOR1 and ADIPOR2: A pan-cancer analysis. Front Endocrinol (Lausanne) 2023; 14:1119534. [PMID: 36896172 PMCID: PMC9990624 DOI: 10.3389/fendo.2023.1119534] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 02/06/2023] [Indexed: 02/23/2023] Open
Abstract
INTRODUCTION AdipoR1 and AdipoR2 proteins, encoded by ADIPOR1 and ADIPOR2 genes respectively, are the receptors of adiponectin secrected by adipose tissue. Increasing studies have identified the vital role of adipose tissue in various diseases, including cancers. Hence, there is an urgent need to explore the roles of AdipoR1 and AdipoR2 in cancers. METHODS We conducted a comprehensive pan-cancer analysis for the roles of AdipoR1 and AdipoR2 via several public databases, including expression differences, prognostic value, and the correlations with tumor microenvironment, epigenetic modification, and drug sensitivity. RESULTS Both ADIPOR1 and ADIPOR2 genes are dysregulated in most cancers, but their genomic alteration frequencies are low. In addition, they are also correlated with the prognosis of some cancers. Although they are not strongly correlated with tumor mutation burden (TMB) or microsatellite instability (MSI), ADIPOR1/2 genes display a significant association with cancer stemness, tumor immune microenvironment, immune checkpoint genes (especially CD274 and NRP1), and drug sensitivity. DISCUSSION ADIPOR1 and ADIPOR2 play critical roles in diverse cancers, and it is a potential strategy to treat tumors through targeting ADIPOR1 and ADIPOR2.
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Affiliation(s)
- Zhuoyuan Chen
- Central Laboratory of Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
- Department of Orthopedics of Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
| | - Huiqin Yang
- Department of Orthopedics of Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
| | - Yunfeng Ren
- Department of Orthopedics of Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
| | - Ze Yang
- Department of Orthopedics of Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
| | - Jiazheng Huang
- Department of Orthopedics of Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
| | - Cheng Li
- Department of Orthopedics of Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
| | - Ying Xiong
- Department of Orthopedics of Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
| | - Bin Yu
- Central Laboratory of Yan’an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
- Greehey Children’s Cancer Research Institute, University of Texas Health at San Antonio, San Antonio, TX, United States
- *Correspondence: Bin Yu,
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Lee IK, Yoon KC, Kang SS, Seon SK, Lee K, Kim BB. Enhanced Immunomodulation, Anti-Apoptosis, and Improved Tear Dynamics of (PEG)-BHD1028, a Novel Adiponectin Receptor Agonist Peptide, for Treating Dry Eye Disease. Pharmaceutics 2022; 15:78. [PMID: 36678707 DOI: 10.3390/pharmaceutics15010078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Dry eye disease (DED) is characterized by impaired tear dynamics, leading to complex pathophysiological conditions. (PEG)-BHD1028, a peptide agonist to AdipoRs, was evaluated as a potential therapeutic agent for DED based on the reported physiological function of adiponectin, including anti-inflammation and epithelial protection. Therapeutic effects of (PEG)-BHD1028 were evaluated in experimentally induced EDE with 0.001%, 0.01%, and 0.1% (PEG)-BHD1028 in mice and 0.1%, 0.2%, and 0.4% in rabbits for 10 days. In the rabbit study, 0.05% cyclosporine was also tested as a comparator. The results from the mouse study revealed significant improvement in tear volumes, tear breakup time (TBUT), inflammation, and corneal severity score (CSS) within 10 days at all (PEG)-BHD1028 concentrations. In the rabbit study, the tear volume and TBUT significantly increased in (PEG)-BHD1028 groups compared with vehicle and 0.05% cyclosporine groups. The CSS, apoptosis rate, and corneal thickness of all (PEG)-BHD1028 and 0.05% cyclosporine groups were significantly improved relative to the vehicle group. The immune cell counts of 0.2% and 0.4% (PEG)-BHD1028 treated groups were significantly lower than those of the vehicle group. These results represent the potential of (PEG)-BHD1028 as an effective therapeutic agent for DED.
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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: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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10
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Wang B, Li Y, Hu S, Peng K. C1q/tumor necrosis factor-related protein 9 protects cultured chondrocytes from IL-1β-induced inflammatory injury by inhibiting NLRP3 inflammasome activation via the AdipoR1/AMPK axis. Environ Toxicol 2022; 37:889-898. [PMID: 34990072 DOI: 10.1002/tox.23452] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/13/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
C1q/tumor necrosis factor-related protein 9 (CTRP9) has been identified as a novel anti-inflammatory factor that participates in numerous pathological conditions. However, whether CTRP9 participates in the regulation of osteoarthritis has not been studied. This work sought to determine the possible role of CTRP9 in osteoarthritis using an in vitro model, namely interleukin-1β (IL-1β)-stimulated chondrocytes. There was a decreased level of CTRP9 in chondrocytes after IL-1β stimulation. CTRP9 upregulation dramatically repressed IL-1β-evoked apoptosis and inflammatory response in cultured chondrocytes. The mechanistic investigation revealed that CTRP9 overexpression restrained the activation of the nucleotide-binding oligomerization domain-like receptor 3 (NLRP3) inflammasome in IL-1β-stimulated chondrocytes via the adiponectin receptor 1 (AdipoR1)/adenosine monophosphate-activated protein kinase (AMPK) axis. Notably, inhibition of AdipoR1 or AMPK abolished the regulatory effects of CTRP9 overexpression on IL-1β-evoked apoptosis and inflammasome activation. Overall, the results of this work delineate that CTRP9 protects cultured chondrocytes from IL-1β-induced inflammatory injury by inhibiting NLRP3 inflammasome activation via the AdipoR1/AMPK axis. This work underscores a potential role of CTRP9 in the progression of osteoarthritis.
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Affiliation(s)
- Bo Wang
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Yanqi Li
- Department of Respiratory, Xi'an Children's Hospital, Xi'an, Shaanxi, China
| | - Shouye Hu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Kan Peng
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
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11
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Syed AA, Reza MI, Singh P, Husain A, Dadge S, Gayen JR. Polyphenolic-rich Cissus quadrangularis extract ameliorates insulin resistance by activating AdipoR1 in peri-/post-menopausal rats. Exp Gerontol 2021; 159:111681. [PMID: 34973346 DOI: 10.1016/j.exger.2021.111681] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 12/13/2021] [Accepted: 12/21/2021] [Indexed: 11/26/2022]
Abstract
Insulin resistance (IR) is a significant complication in menopausal women, which predisposes them to cardiovascular disorder, obesity, and diabetes. Cissus quadrangularis is a polyphenolic plant rich in nutrients and is used as an edible vegetable in Nigeria. Previously, we investigated that C. quadrangularis extract (EECQ) treatment ameliorates IR, hyperlipidemia, and overweight in diabetic rats. Accordingly, in the current study, we further evaluated the adiponectin mimetic activity of EECQ in peri-/post-menopausal rats. Perimenopause was induced by High-fat diet/4-vinylcyclohexenediepoxide/(HFD-VCD), while postmenopause was by HFD/bilateral ovariectomy (HFD-OVX). Both the menopausal rats demonstrated an abnormal level of sex hormones, IR, hyperlipidemia, increased fat mass, and abnormal weight gain. Nevertheless, EECQ treated group revealed protection from these untoward complications. Furthermore, the docking score of major constituents of EECQ on adiponectin receptor 1 (AdipoR1) depicted a strong binding affinity, which was comparable to the ligand adipoRon. Besides, AdipoR1 expression determined by RT-PCR, Western blotting, and immunohistochemistry was downregulated in peri-/post-menopausal rats. Similarly, the expression of AdipoR1 downstream marker APPL1 and insulin sensitivity markers, including IRS1, Akt1, and GLUT4, were also dysregulated in menopausal rats. However, EECQ treated rats manifested restoration of normal expression of APPL1, IRS1, Akt1, and GLUT4 by upregulating AdipoR1. Altogether, the current study promulgated the adiponectin mimetic activity of EECQ, which is substantial to mitigate IR in menopausal conditions.
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Affiliation(s)
- Anees Ahmed Syed
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mohammad Irshad Reza
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226031, India
| | - Pragati Singh
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226031, India
| | - Athar Husain
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Shailesh Dadge
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226031, India
| | - Jiaur R Gayen
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226031, India; Pharmacology Division, CSIR-Central Drug Research Institute, Sitapur Road, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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12
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Gong Y, Wang Y, Zhang Y, Wang L, Wan L, Zu Y, Li C, Wang X, Cui ZK. Paracrine Effects of Recombinant Human Adiponectin Promote Bone Regeneration. Front Cell Dev Biol 2021; 9:762335. [PMID: 34790669 PMCID: PMC8591230 DOI: 10.3389/fcell.2021.762335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 09/27/2021] [Indexed: 01/15/2023] Open
Abstract
Bone regeneration is a delicate physiological process. Non-union and delayed fracture healing remains a great challenge in clinical practice nowadays. Bone and fat hold a close relationship to remain balanced through hormones and cytokines. Adiponectin is a well-known protein to maintain the hemostasis, which may be an interesting target for fracture healing. Herein, we provided a facile and efficient method to obtain high-purity and high-yield recombinant human adiponectin (ADPN). The biocompatibility and the pharmaceutical behaviors were evaluated in Sprague–Dawley rats. The paracrine effects of adiponectin on bone fracture healing were investigated with a rat tibia fracture model via intrabone injection. Significantly accelerated bone healing was observed in the medulla injection group, indicating the paracrine effects of adiponectin could be potentially utilized for clinical treatments. The underlying mechanism was primarily assessed, and the expression of osteogenic markers, including bone morphogenic protein 2, alkaline phosphatase, and osteocalcin, along with adiponectin receptor 1 (AdipoR1), was markedly increased at the fracture site. The increased bone healing of ADPN treatment may result from both enhanced osteogenic proliferation as well as differentiation. Cell experiments confirmed that the expression of osteogenesis markers increased significantly in ADPN treatment groups, while it decreased when the expression of AdipoR1 was knocked down by siRNA. Our study provided a feasible and efficacious way for bone fracture treatment with local administration of ADPN, which could be rapidly translated into the clinics.
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Affiliation(s)
- Yanping Gong
- Department of Endocrinology, The Second Medical Center, National Clinical Research Center for Geriatric Disease, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yang Wang
- Department of Endocrinology, The Second Medical Center, National Clinical Research Center for Geriatric Disease, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yiqing Zhang
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Liangchen Wang
- Department of Endocrinology, The Second Medical Center, National Clinical Research Center for Geriatric Disease, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - Lijuan Wan
- Department of Endocrinology, The Second Medical Center, National Clinical Research Center for Geriatric Disease, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yuan Zu
- Department of Endocrinology, The Second Medical Center, National Clinical Research Center for Geriatric Disease, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - Chunlin Li
- Department of Endocrinology, The Second Medical Center, National Clinical Research Center for Geriatric Disease, The Chinese People's Liberation Army General Hospital, Beijing, China
| | - Xin Wang
- Institute of Orthopedics, The First Medical Center, The People's Liberation Army General Hospital, Beijing, China
| | - Zhong-Kai Cui
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China.,Bioland Laboratory, Guangzhou, China
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13
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Lee IK, Kim G, Kim DH, Kim BB. PEG-BHD1028 Peptide Regulates Insulin Resistance and Fatty Acid β-Oxidation, and Mitochondrial Biogenesis by Binding to Two Heterogeneous Binding Sites of Adiponectin Receptors, AdipoR1 and AdipoR2. Int J Mol Sci 2021; 22:ijms22020884. [PMID: 33477324 PMCID: PMC7830917 DOI: 10.3390/ijms22020884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 12/17/2022] Open
Abstract
Adiponectin plays multiple critical roles in modulating various physiological processes by binding to its receptors. The functions of PEG-BHD1028, a potent novel peptide agonist to AdipoRs, was evaluated using in vitro and in vivo models based on the reported action spectrum of adiponectin. To confirm the design concept of PEG-BHD1028, the binding sites and their affinities were analyzed using the SPR (Surface Plasmon Resonance) assay. The results revealed that PEG-BHD1028 was bound to two heterogeneous binding sites of AdipoR1 and AdipoR2 with a relatively high affinity. In C2C12 cells, PEG-BHD1028 significantly activated AMPK and subsequent pathways and enhanced fatty acid β-oxidation and mitochondrial biogenesis. Furthermore, it also facilitated glucose uptake by lowering insulin resistance in insulin-resistant C2C12 cells. PEG-BHD1028 significantly reduced the fasting plasma glucose level in db/db mice following a single s.c. injection of 50, 100, and 200 μg/Kg and glucose tolerance at a dose of 50 μg/Kg with significantly decreased insulin production. The animals received 5, 25, and 50 μg/Kg of PEG-BHD1028 for 21 days significantly lost their weight after 18 days in a range of 5-7%. These results imply the development of PEG-BHD1028 as a potential adiponectin replacement therapeutic agent.
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Affiliation(s)
| | | | | | - Brian B. Kim
- Correspondence: ; Tel.: +82-31-360-3132; Fax: +82-31-360-3133
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14
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Freitas CDTD, Nishi BC, do Nascimento CTM, Silva MZR, Bezerra EHS, Rocha BAM, Grangeiro TB, Oliveira JPBD, Souza PFN, Ramos MV. Characterization of Three Osmotin-Like Proteins from Plumeria rubra and Prospection for Adiponectin Peptidomimetics. Protein Pept Lett 2021; 27:593-603. [PMID: 31994998 DOI: 10.2174/0929866527666200129154357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 11/13/2019] [Accepted: 12/02/2019] [Indexed: 01/28/2023]
Abstract
BACKGROUND Osmotin-Like Proteins (OLPs) have been purified and characterized from different plant tissues, including latex fluids. Besides its defensive role, tobacco osmotin seems to induce adiponectin-like physiological effects, acting as an agonist. However, molecular information about this agonistic effect on adiponectin receptors has been poorly exploited and other osmotins have not been investigated yet. OBJECTIVE AND METHODS The present study involved the characterization of three OLPs from Plumeria rubra latex and molecular docking studies to evaluate the interaction between them and adiponectin receptors (AdipoR1 and AdipoR2). RESULTS P. rubra Osmotin-Like Proteins (PrOLPs) exhibited molecular masses from 21 to 25 kDa and isoelectric points ranging from 4.4 to 7.7. The proteins have 16 cysteine residues, which are involved in eight disulfide bonds, conserved in the same positions as other plant OLPs. The threedimensional (3D) models exhibited the three typical domains of OLPs, and molecular docking analysis showed that two PrOLP peptides interacted with two adiponectin receptors similarly to tobacco osmotin peptide. CONCLUSION As observed for tobacco osmotin, the latex osmotins of P. rubra exhibited compatible interactions with adiponectin receptors. Therefore, these plant defense proteins (without known counterparts in humans) are potential tools to study modulation of glucose metabolism in type II diabetes, where adiponectin plays a pivotal role in homeostasis.
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Affiliation(s)
- Cleverson D T de Freitas
- Departamento de Bioquimica e Biologia Molecular, Universidade Federal do Ceara, Centro de Ciencias, Bloco 907, Campus do Pici. Fortaleza, Ceara, CEP 60440-900, Brazil
| | - Beatriz C Nishi
- Departamento de Bioquimica e Biologia Molecular, Universidade Federal do Ceara, Centro de Ciencias, Bloco 907, Campus do Pici. Fortaleza, Ceara, CEP 60440-900, Brazil
| | - Camila T M do Nascimento
- Departamento de Bioquimica e Biologia Molecular, Universidade Federal do Ceara, Centro de Ciencias, Bloco 907, Campus do Pici. Fortaleza, Ceara, CEP 60440-900, Brazil
| | - Maria Z R Silva
- Departamento de Bioquimica e Biologia Molecular, Universidade Federal do Ceara, Centro de Ciencias, Bloco 907, Campus do Pici. Fortaleza, Ceara, CEP 60440-900, Brazil
| | - Eduardo H S Bezerra
- Departamento de Bioquimica e Biologia Molecular, Universidade Federal do Ceara, Centro de Ciencias, Bloco 907, Campus do Pici. Fortaleza, Ceara, CEP 60440-900, Brazil
| | - Bruno A M Rocha
- Departamento de Bioquimica e Biologia Molecular, Universidade Federal do Ceara, Centro de Ciencias, Bloco 907, Campus do Pici. Fortaleza, Ceara, CEP 60440-900, Brazil
| | - Thalles B Grangeiro
- Departamento de Biologia, Fortaleza, Universidade Federal de Ceara, Ceara, Brazil
| | - João P B de Oliveira
- Departamento de Bioquimica e Biologia Molecular, Universidade Federal do Ceara, Centro de Ciencias, Bloco 907, Campus do Pici. Fortaleza, Ceara, CEP 60440-900, Brazil
| | - Pedro F Noronha Souza
- Departamento de Bioquimica e Biologia Molecular, Universidade Federal do Ceara, Centro de Ciencias, Bloco 907, Campus do Pici. Fortaleza, Ceara, CEP 60440-900, Brazil
| | - Márcio V Ramos
- Departamento de Bioquimica e Biologia Molecular, Universidade Federal do Ceara, Centro de Ciencias, Bloco 907, Campus do Pici. Fortaleza, Ceara, CEP 60440-900, Brazil
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15
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Zhang Z, Ni L, Zhang L, Zha D, Hu C, Zhang L, Feng H, Wei X, Wu X. Empagliflozin Regulates the AdipoR1/p-AMPK/p-ACC Pathway to Alleviate Lipid Deposition in Diabetic Nephropathy. Diabetes Metab Syndr Obes 2021; 14:227-240. [PMID: 33500643 PMCID: PMC7822229 DOI: 10.2147/dmso.s289712] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 12/24/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Abnormal lipid deposition in the progress of diabetic nephropathy (DN) plays an important role in a number of studies that have shown that SGLT2 inhibitor (SGLT2i) empagliflozin plays an important role in lipid metabolism, but its mechanism is still unclear. METHODS We aimed to explore the effect of empagliflozin on lipid levels in kidney cancer patients with DN and postoperative patients without DN kidney carcinoma; the patients with DN showed ectopic lipid deposition. In type 2 diabetes model mice induced by streptozotocin (STZ) and a high-fat diet, combined AMPK plus empagliflozin or empagliflozin inhibitor plus compound C was applied, followed by analyses of the blood, urine and kidney indexes to observe the correlation between SGLT2i and AMPK and lipid metabolism in diabetic kidney disease. We determined whether DN in patients with renal tubular atrophy involved lipid metabolism. RESULTS In clinical specimens, the adiponectin receptor AdipoR1 was reduced, and the phosphorylation acetyl-CoA carboxylase (p-ACC) was increased. In vitro and in vivo pathological immunofluorescence and Western blotting confirmed that, under the condition of high glucose, malpighian tubules displayed ectopic lipid deposition and expressed related lipid parameters accompanied by fibrosis. Empagliflozin intervention reduced lipid deposition fibrosis and renal tubular atrophy, and the addition of compound C promoted disease progression. Moreover, siAdipoR1 transfection proved that AdipoR1 affected P-AMPK and then p-ACC affected lipid metabolism in renal tubular cells. CONCLUSION According to the above experimental results, empagliflozin could reduce lipid metabolism of DN through AdipoR1/P-AMPK/P-ACC pathway and delay DN progress.
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Affiliation(s)
- Zhiqin Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Lihua Ni
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Lian Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Dongqing Zha
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Chun Hu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Lingli Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Huiling Feng
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Xiaobao Wei
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
| | - Xiaoyan Wu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of China
- Correspondence: Xiaoyan Wu Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan430071, People’s Republic of ChinaTel +86 15972935798 Email
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16
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Yu A, Zheng Y, Gong Y, Yu R, Yang Z, Chen X. Adiponectin promotes myogenic differentiation via a Mef2C- AdipoR1 positive feedback loop. Gene 2020; 771:145380. [PMID: 33359123 DOI: 10.1016/j.gene.2020.145380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/17/2020] [Accepted: 12/15/2020] [Indexed: 11/16/2022]
Abstract
Adiponectin is an important hormone that regulates systemic metabolism, and it has been reported that globular adiponectin promotes myogenic differentiation. However, the mechanisms by which adiponectin promotes myogenic differentiation is not fully understood. In the present study, we show that adiponectin and its receptor 1 are significantly up-regulated during myogenic differentiation and that adiponectin increased the expression level of a core myogenic regulator, Mef2C, which is required for the effects of adiponectin on promoting myogenic differentiation. A transcriptional inhibitor of Mef2C, HDAC9, was down-regulated by adiponectin. In turn, Mef2C overexpression up-regulates adiponectin and its receptor, AdipoR1, to increase myogenic differentiation. We showed that mechanistically, Mef2C directly binds to AdipoR1 promoter to transcriptionally up-regulate AdipoR1 expression, which is required for the effects of Mef2C overexpression on myogenic differentiation. Thus, adiponectin/AdipoR1 and Mef2c form a positive feedback loop to promote myogenic differentiation.
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Affiliation(s)
- An Yu
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yu Zheng
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yuqing Gong
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology & College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Ruofan Yu
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zaiqing Yang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Xiaodong Chen
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology & College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China.
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17
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Idrizaj E, Garella R, Nistri S, Dell'Accio A, Cassioli E, Rossi E, Castellini G, Ricca V, Squecco R, Baccari MC. Adiponectin Exerts Peripheral Inhibitory Effects on the Mouse Gastric Smooth Muscle through the AMPK Pathway. Int J Mol Sci 2020; 21:E9617. [PMID: 33348652 DOI: 10.3390/ijms21249617] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/10/2020] [Accepted: 12/15/2020] [Indexed: 12/17/2022] Open
Abstract
Some adipokines, such as adiponectin (ADPN), other than being implicated in the central regulation of feeding behavior, may influence gastric motor responses, which are a source of peripheral signals that also influence food intake. The present study aims to elucidate the signaling pathways through which ADPN exerts its actions in the mouse gastric fundus. To this purpose, we used a multidisciplinary approach. The mechanical results showed that ADPN caused a decay of the strip basal tension, which was abolished by the nitric oxide (NO) synthesis inhibitor, L-NG-nitro arginine (L-NNA). The electrophysiological experiments confirmed that all ADPN effects were abolished by L-NNA, except for the reduction of Ca2+ current, which was instead prevented by the inhibitor of AMP-activated protein kinase (AMPK), dorsomorphin. The activation of the AMPK signaling by ADPN was confirmed by immunofluorescence analysis, which also revealed the ADPN R1 receptor (AdipoR1) expression in glial cells of the myenteric plexus. In conclusion, our results indicate that ADPN exerts an inhibitory action on the gastric smooth muscle by acting on AdipoR1 and involving the AMPK signaling pathway at the peripheral level. These findings provide novel bases for considering AMPK as a possible pharmacologic target for the potential treatment of obesity and eating disorders.
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18
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Abstract
Adiponectin regulates white adipose tissue (WAT) metabolism and promotes insulin-sensitizing and anti-atherosclerotic effects in vivo. In this context, small molecule adiponectin receptor agonists have become of great therapeutic value for the treatment of metabolic diseases. Here, we investigated the effects of the adiponectin mimetic compound ALY688 on WAT metabolism. To accomplish this, rat epididymal (Epid) and subcutaneous inguinal (Sc Ing) adipocytes were isolated and incubated with ALY688. Subsequently, several parameters of glucose and fat metabolism were assessed. ALY688 promoted AMP-activated protein kinase (AMPK) and acetyl-CoA carboxylase (ACC) phosphorylation, enhanced glucose oxidation, and suppressed fat oxidation in adipocytes from both fat depots. ALY688 did not affect basal and insulin-stimulated rates of glucose uptake, glucose incorporation into lipids, and AKTSer473 and p38 mitogen-activated protein kinase (MAPK) phosphorylations in either Epid or Sc Ing adipocytes. ALY688 did not alter basal lipolysis in Epid and Sc Ing adipocytes, but it enhanced isoproterenol-induced lipolysis in Epid adipocytes. Adiponectin receptor 2 (AdipoR2) mRNA was the prevalent isoform expressed in all adipocytes, and Epid adipocytes displayed significantly higher AdipoR2 mRNA expression than Sc Ing adipocytes. In conclusion, ALY688 can regulate adiposity and affect glycaemic control by altering substrate portioning in the WAT in a fat depot-specific manner.
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Affiliation(s)
- Daniel Da Eira
- School of Kinesiology and Health Science, York University, North York, Canada
| | - Shailee Jani
- School of Kinesiology and Health Science, York University, North York, Canada
| | - Hyekyoung Sung
- Department of Biology, York University, North York, Canada
| | - Gary Sweeney
- Department of Biology, York University, North York, Canada
| | - Rolando B. Ceddia
- School of Kinesiology and Health Science, York University, North York, Canada
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19
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Ramos-Ramírez P, Malmhäll C, Johansson K, Adner M, Lötvall J, Bossios A. Lung Regulatory T Cells Express Adiponectin Receptor 1: Modulation by Obesity and Airway Allergic Inflammation. Int J Mol Sci 2020; 21:ijms21238990. [PMID: 33256137 PMCID: PMC7730828 DOI: 10.3390/ijms21238990] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/19/2020] [Accepted: 11/23/2020] [Indexed: 12/26/2022] Open
Abstract
Regulatory T cells (Tregs) decrease in the adipose tissue upon weight gain, contributing to persistent low-grade inflammation in obesity. We previously showed that adipose tissue Tregs express the adiponectin receptor 1 (AdipoR1); however, the expression in lung Tregs is still unknown. Here, we aimed to determine whether Helios+ and Helios- Treg subsets expressed AdipoR1 in the lungs of obese mice and whether different obesity grades affected the expression upon allergic lung inflammation. For diet-induced obesity (DIO), mice were fed a high-fat diet (HFD) for up to 15 weeks (overweight), 21 weeks (obesity), and 26 weeks (morbid obesity). Overweight and morbidly obese mice were sensitized and challenged with ovalbumin (OVA) to induce allergic lung inflammation. The AdipoR1 expression was reduced significantly in the lung Helios+ and Helios- Tregs of obese mice compared with lean mice. Airway allergic inflammation showed reduced AdipoR1 expression in lung Foxp3+ Tregs. Obesity significantly exacerbated the eosinophilic airway inflammation and reduced the number of Helios+ Tregs in lung and adipose tissue in the obesity-associated asthma model. Upon further weight gain, AdipoR1-expressing Tregs in the lungs of allergic mice were increased, whereas AdipoR1-expressing Tregs in adipose tissue were reduced. These data suggest that obesity-associated adipose tissue inflammation may exacerbate allergic inflammation by downregulating the AdipoR1+ Tregs in the lungs.
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Affiliation(s)
- Patricia Ramos-Ramírez
- Krefting Research Centre, Department for Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; (P.R.-R.); (C.M.); (K.J.); (J.L.)
| | - Carina Malmhäll
- Krefting Research Centre, Department for Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; (P.R.-R.); (C.M.); (K.J.); (J.L.)
| | - Kristina Johansson
- Krefting Research Centre, Department for Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; (P.R.-R.); (C.M.); (K.J.); (J.L.)
| | - Mikael Adner
- Institute of Environmental Medicine, Karolinska Institutet, SE-171 65 Stockholm, Sweden;
| | - Jan Lötvall
- Krefting Research Centre, Department for Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; (P.R.-R.); (C.M.); (K.J.); (J.L.)
| | - Apostolos Bossios
- Krefting Research Centre, Department for Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; (P.R.-R.); (C.M.); (K.J.); (J.L.)
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Huddinge, SE-141 86 Stockholm, Sweden
- Department of Medicine, Huddinge, Karolinska Institutet, SE-141 86 Stockholm, Sweden
- Correspondence: ; Tel.: +46-8-58586734
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Kordafshari M, Nourian M, Mehrvar N, Jalaeikhoo H, Etemadi A, Khoshdel AR, Idris MG, Iravani S, Mehrvar A. Expression of AdipoR1 and AdipoR2 and Serum Level of Adiponectin in Gastric Cancer. Gastrointest Tumors 2020; 7:103-109. [PMID: 33173773 PMCID: PMC7590762 DOI: 10.1159/000510342] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 07/17/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Cancer is one of the major causes of death worldwide and the third leading cause of death in Iran. One of the proteins that are considered having anticancer effects is the adiponectin hormone. Adiponectin leads to programmed cell death, prevents cell growth and proliferation, and increases the expression levels of BCL2. AIM The aim of this study was to assay the expression of adiponectin receptors (AdipoR1 and AdipoR2) genes in gastric cancer patients. MATERIALS AND METHODS In this case-control study, 42 gastric cancer patients and 52 volunteers as healthy controls were enrolled. Total RNA was extracted. cDNA was synthesized by the reverse transcription method, and expression analysis was performed by real-time PCR. The serum level of adiponectin was also measured by ELISA. RESULTS The expression of both AdipoR1 and AdipoR2 was significantly higher than the control group (p = 0.02). Serum adiponectin was significantly lower in gastric cancer cases when compared with normal controls (p = 0.03). CONCLUSION We found that expression level of AdipoR1 and AdipoR2 is strongly higher; however, the level of circulating adiponectin is lower in gastric cancer. Our study suggests that the expression of AdipoR1 and AdipoR2, besides the low level of adiponectin, may play an important role in the development and/or progression of gastric cancer.
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Affiliation(s)
- Morteza Kordafshari
- Research Center for Cancer Screening and Epidemiology, AJA University of Medical Sciences, Tehran, Iran
| | - Mahyar Nourian
- Mahak Hematology Oncology Research Center (Mahak-HORC), Mahak Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Narjes Mehrvar
- Mahak Hematology Oncology Research Center (Mahak-HORC), Mahak Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hassan Jalaeikhoo
- Research Center for Cancer Screening and Epidemiology, AJA University of Medical Sciences, Tehran, Iran
| | - Aida Etemadi
- Research Center for Cancer Screening and Epidemiology, AJA University of Medical Sciences, Tehran, Iran
| | - Ali Reza Khoshdel
- Research Center for Cancer Screening and Epidemiology, AJA University of Medical Sciences, Tehran, Iran
| | | | - Shahrokh Iravani
- Research Center for Cancer Screening and Epidemiology, AJA University of Medical Sciences, Tehran, Iran
- *Shahrokh Iravani, AJA Cancer Epidemiology Research and Treatment Center (AJA-CERTC), AJA University of Medical Sciences, Shahid Etemadzadeh St., Tehran 1411718541 (Iran), , Azim Mehrvar, Mahak Hematology Oncology Research Center (Mahak-HORC), Mahak Hospital, Tehran 1956993461 (Iran),
| | - Azim Mehrvar
- Research Center for Cancer Screening and Epidemiology, AJA University of Medical Sciences, Tehran, Iran
- Mahak Hematology Oncology Research Center (Mahak-HORC), Mahak Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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21
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Zhang Q, Wang L, Jiang J, Lin S, Luo A, Zhao P, Tan W, Zhang M. Critical Role of AdipoR1 in Regulating Th17 Cell Differentiation Through Modulation of HIF-1α-Dependent Glycolysis. Front Immunol 2020; 11:2040. [PMID: 32973810 PMCID: PMC7461876 DOI: 10.3389/fimmu.2020.02040] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/27/2020] [Indexed: 12/24/2022] Open
Abstract
We previously reported that adiponectin (AD) promotes naïve T cell differentiation into Th17 cells and participates in synovial inflammation and the bone erosion process in patients with rheumatoid arthritis. Here, we use a T cell lineage adiponectin receptor 1 (AdipoR1) conditional knockout model to investigate the role of AdipoR1 in Th17 differentiation. RNA-sequencing (RNA-seq) demonstrated that AdipoR1 knockout reduced the expression of a variety of T cell related genes, with Rorc showing the greatest level of down-regulation. AdipoR1 deficiency inhibited Th17 cell differentiation in vitro and ameliorated joint inflammation in antigen-induced arthritis mice. Moreover, AdipoR1-deficent CD4+T cells displayed reduced Hypoxia-Inducible Factor-1α expression leading to glycolysis inhibition during naïve CD4+T cell differentiation into Th17 cells. We describe a novel function of AdipoR1 in regulating Th17 cell differentiation through modulating HIF-1α-dependent glycolysis.
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Affiliation(s)
- Qian Zhang
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lei Wang
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jintao Jiang
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shiyu Lin
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Aishu Luo
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Pengfei Zhao
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wenfeng Tan
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Miaojia Zhang
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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22
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Polito R, Nigro E, Fei L, DE Magistris L, Monaco ML, D'Amico R, Naviglio S, Signoriello G, Daniele A. Adiponectin Is Inversely Associated With Tumour Grade in Colorectal Cancer Patients. Anticancer Res 2020; 40:3751-3757. [PMID: 32620614 DOI: 10.21873/anticanres.14364] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/15/2020] [Accepted: 05/19/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Colorectal cancer is frequently associated with metabolic diseases. Adiponectin (APN) is an insulin-sensitizing adipokine circulating as low molecular weight (LMW), medium molecular weight (MMW) and high molecular weight (HMW) oligomers; the latter are the most bio-active oligomers. APN, through AdipoR1, AdipoR2 and T-cadherin receptors, regulates inflammation, and proliferation. Considering the anti-proliferative and anti-inflammatory properties of APN, we investigated the involvement of the "APN system" in colorectal cancer. MATERIALS AND METHODS A total of 44 colorectal cancer patients and 51 healthy controls were recruited. We analysed APN and HMW oligomers in sera, AdipoR1, AdipoR2 and T-cadherin expression in non-cancerous and cancerous colon tissues. RESULTS we found statistically lower levels of APN in patients compared to controls, with a specific decrease of HMW oligomers. Importantly, APN correlated to cancer grade. AdipoR1 was found overexpressed in cancerous compared to non-cancerous tissues while AdipoR2 and T-cadherin were down-regulated. CONCLUSION The deregulated expression of the "APN system" in colorectal cancer with a specific correlation to tumor grade suggests APN as a promising biomarker in colorectal cancer.
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Affiliation(s)
- Rita Polito
- Department of Environmental, Biological, and Pharmaceutical Sciences and Technologies, University of Campania, "Luigi Vanvitelli", Naples, Italy.,CEINGE-Biotecnologie Avanzate Scarl, Naples, Italy
| | - Ersilia Nigro
- Department of Environmental, Biological, and Pharmaceutical Sciences and Technologies, University of Campania, "Luigi Vanvitelli", Naples, Italy.,CEINGE-Biotecnologie Avanzate Scarl, Naples, Italy
| | - Landino Fei
- Unit of Gastrointestinal Surgery, School of Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Laura DE Magistris
- Department of Precision Medicine, University of Campania, "Luigi Vanvitelli", Naples, Italy
| | | | - Rosa D'Amico
- Unit of Gastrointestinal Surgery, School of Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Silvio Naviglio
- Department of Precision Medicine, University of Campania, "Luigi Vanvitelli", Naples, Italy
| | - Giuseppe Signoriello
- Department of Mental Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Aurora Daniele
- Department of Environmental, Biological, and Pharmaceutical Sciences and Technologies, University of Campania, "Luigi Vanvitelli", Naples, Italy .,CEINGE-Biotecnologie Avanzate Scarl, Naples, Italy
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23
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Cicekdal MB, Kazan BT, Tuna BG, Ozorhan U, Ekici ID, Zhu F, Suakar O, Kuskucu A, Bayrak OF, Arcaro K, Cleary MP, Atasayan O, Yilmaz B, Dogan S. Effects of two types of energy restriction on methylation levels of adiponectin receptor 1 and leptin receptor overlapping transcript in a mouse mammary tumour virus-transforming growth factor- α breast cancer mouse model. Br J Nutr 2021; 125:1-9. [PMID: 31685042 DOI: 10.1017/S0007114519002757] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The role of adiponectin and leptin signalling pathways has been suggested to play important roles in the protective effects of energy restriction (ER) on mammary tumour (MT) development. To study the effects of ER on the methylation levels in adiponectin receptor 1 (AdipoR1) and leptin receptor overlapping transcript (Leprot) genes using the pyrosequencing method in mammary fat pad tissue, mouse mammary tumour virus-transforming growth factor-α (MMTV-TGF-α) female mice were randomly assigned to ad libitum (AL), chronic ER (CER, 15 % ER) or intermittent ER (3 weeks AL and 1 week 60 % ER in cyclic periods) groups at 10 weeks of age until 82 weeks of age. The methylation levels of AdipoR1 in the CER group were higher than those in the AL group at week 49/50 (P < 0·05), while the levels of methylation for AdipoR1 and Leprot genes were similar among the other groups. Also, the methylation levels at CpG2 and CpG3 regions of the promoter region of the AdipoR1 gene in the CER group were three times higher (P < 0·05), while CpG1 island of Leprot methylation was significantly lower compared with the other groups (P < 0·05). Adiponectin and leptin gene expression levels were consistent with the methylation levels. We also observed a change with ageing in methylation levels of these genes. These results indicate that different types of ER modify methylation levels of AdipoR1 and Leprot in different ways and CER had a more significant effect on methylation levels of both genes. Epigenetic regulation of these genes may play important roles in the preventive effects of ER against MT development and ageing processes.
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24
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Bloemer J, Pinky PD, Smith WD, Bhattacharya D, Chauhan A, Govindarajulu M, Hong H, Dhanasekaran M, Judd R, Amin RH, Reed MN, Suppiramaniam V. Adiponectin Knockout Mice Display Cognitive and Synaptic Deficits. Front Endocrinol (Lausanne) 2019; 10:819. [PMID: 31824431 PMCID: PMC6886372 DOI: 10.3389/fendo.2019.00819] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/08/2019] [Indexed: 12/21/2022] Open
Abstract
Adiponectin is an adipokine that has recently been under investigation for potential neuroprotective effects in various brain disorders including Alzheimer's disease, stroke, and depression. Adiponectin receptors (AdipoR1 and AdipoR2) are found throughout various brain regions, including the hippocampus. However, the role of these receptors in synaptic and cognitive function is not clear. Therefore, the goal of the current study was to evaluate synaptic and cognitive function in the absence of adiponectin. The current study utilized 12-month-old adiponectin knockout (APN-KO) mice and age-matched controls to study cognitive and hippocampal synaptic alterations. We determined that AdipoR1 and AdipoR2 are present in the synaptosome, with AdipoR2 displaying increased presynaptic vs. postsynaptic localization, whereas AdipoR1 was enriched in both the presynaptic and postsynaptic fractions. APN-KO mice displayed cognitive deficits in the novel object recognition (NOR) and Y-maze tests. This was mirrored by deficits in long-term potentiation (LTP) of the hippocampal Schaefer collateral pathway in APN-KO mice. APN-KO mice also displayed a reduction in basal synaptic transmission and an increase in presynaptic release probability. Deficits in LTP were rescued through hippocampal slice incubation with the adiponectin receptor agonist, AdipoRon, indicating that acute alterations in adiponectin receptor signaling influence synaptic function. Along with the deficits in LTP, altered levels of key presynaptic and postsynaptic proteins involved in glutamatergic neurotransmission were observed in APN-KO mice. Taken together, these results indicate that adiponectin is an important regulator of cognition and synaptic function in the hippocampus. Future studies should examine the role of specific adiponectin receptors in synaptic processes.
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Affiliation(s)
- Jenna Bloemer
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
- Center for Neuroscience, Auburn University, Auburn, AL, United States
| | - Priyanka D. Pinky
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
- Center for Neuroscience, Auburn University, Auburn, AL, United States
| | - Warren D. Smith
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
- Center for Neuroscience, Auburn University, Auburn, AL, United States
| | - Dwipayan Bhattacharya
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
| | - Alisa Chauhan
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
| | - Manoj Govindarajulu
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
- Center for Neuroscience, Auburn University, Auburn, AL, United States
| | - Hao Hong
- Center for Neuroscience, Auburn University, Auburn, AL, United States
- Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, China Pharmaceutical University, Nanjing, China
| | - Muralikrishnan Dhanasekaran
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
- Center for Neuroscience, Auburn University, Auburn, AL, United States
| | - Robert Judd
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, United States
| | - Rajesh H. Amin
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
- Center for Neuroscience, Auburn University, Auburn, AL, United States
| | - Miranda N. Reed
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
- Center for Neuroscience, Auburn University, Auburn, AL, United States
- *Correspondence: Miranda N. Reed
| | - Vishnu Suppiramaniam
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, United States
- Center for Neuroscience, Auburn University, Auburn, AL, United States
- Vishnu Suppiramaniam
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25
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Sun LY, Li XJ, Sun YM, Huang W, Fang K, Han C, Chen ZH, Luo XQ, Chen YQ, Wang WT. LncRNA ANRIL regulates AML development through modulating the glucose metabolism pathway of AdipoR1/AMPK/SIRT1. Mol Cancer 2018; 17:127. [PMID: 30134922 PMCID: PMC6106744 DOI: 10.1186/s12943-018-0879-9] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 08/16/2018] [Indexed: 12/13/2022] Open
Abstract
The long noncoding RNA ANRIL has been found to be abnormally expressed and play important roles in different cancers. However, the expression and function of ANRIL in acute myeloid leukemia (AML) remain to be declared. In this study, we found that ANRIL is up-regulated in AML patients at diagnosis and down-regulated in patients after complete remission (CR). Functional studies showed that knockdown of ANRIL expression resulted in a decline in glucose uptake and inhibition of AML cell maintenance in vitro and in vivo. Mechanically, ANRIL was found to repress the expression of Adiponectin receptor (AdipoR1), a key regulator of glucose metabolism. Both ANRIL and AdipoR1 knockdown reduced the expression levels of phosphorylation of AMPK and SIRT1, implying a previously unappreciated ANRIL-AdipoR1-AMPK/SIRT1 signaling pathway in regulating cell glucose metabolism and survival in AML. The study is the first to demonstrate that ANRIL promotes malignant cell survival and cell glucose metabolism to accelerate AML progression and is a potential prognostic marker and therapeutic target in AML treatment.
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Affiliation(s)
- Lin-Yu Sun
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China
| | - Xiao-Juan Li
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yu-Meng Sun
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China
| | - Wei Huang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China
| | - Ke Fang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China
| | - Cai Han
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China
| | - Zhen-Hua Chen
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China
| | - Xue-Qun Luo
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Yue-Qin Chen
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China. .,School of Life Science, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China.
| | - Wen-Tao Wang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, China. .,School of Life Science, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China.
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26
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Karnati HK, Panigrahi MK, Li Y, Tweedie D, Greig NH. Adiponectin as a Potential Therapeutic Target for Prostate Cancer. Curr Pharm Des 2018; 23:4170-4179. [PMID: 28183249 DOI: 10.2174/1381612823666170208123553] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 12/14/2016] [Accepted: 02/02/2017] [Indexed: 02/07/2023]
Abstract
Adipokines are bioactive proteins that mediate proliferation, metabolism, inflammation, and angiogenesis. Adiponectin is an important adipokine that exerts multiple key functions via its anti-metabolic syndrome and anti-inflammatory properties. A number of adiponectin receptors, AdipoR1, AdipoR2 and T-cadherin, have been identified. Recent studies have suggested the involvement of adiponectin and receptors in several cancers, including prostate, breast, endometrial, brain, and colon cancer. Altered levels of adiponectin expression, or its interacting receptors, in cancers can lead to dysregulation of signaling pathways. Our current review describes the molecular mechanisms underlying the anti-tumorigenesis activity of adiponectin and the role of its receptors in prostate carcinogenesis, and provides perspectives of adiponectin-mediated signaling as a potential target for therapy.
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Affiliation(s)
- Hanuma Kumar Karnati
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224. United States
| | - Manas Kumar Panigrahi
- Department of Neurosurgery, Krishna Institute of Medical Sciences (KIMS), Hyderabad- 500003, Telangana. India
| | - Yazhou Li
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224. United States
| | - David Tweedie
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224. United States
| | - Nigel H Greig
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224. United States
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27
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Babińska A, Pȩksa R, Świa Tkowska-Stodulska R, Wiśniewski P, Sworczak K. Expression of adiponectin and leptin receptors in adrenal incidentaloma patients with subclinical hormone secretion. Cancer Biomark 2018; 22:325-332. [PMID: 29689708 DOI: 10.3233/cbm-171049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The role of adopokines in adrenal tumors' hormonal activity remains unclear. Obesity may induce arterial hypertension, disorders of carbohydrate metabolism, and is a risk factor of cardiovascular disease. In patients with subclinical hormone secretion by the adrenal cortex or medulla the risk of metabolic disease is increased. OBJECTIVE Authors of this retrospective study selected 78 patients with subclinical hormone secretion out of all adrenal incidentaloma patients hospitalized in the Department of Endocrinology and Internal Medicine between 1995 and 2014. METHODS The analyzed group comprised of 38 subclinical Cushing's syndrome (SCS), 40 incidentally discovered pheochromocytoma (PHEO) and 42 patients operated due to an adrenal tumor without pathological hormonal activity. Expression of adiponectin (AdipoR1, AdipoR2) and leptin (Ob-R) receptors in adrenal tumors was assessed in relation to body mass index (BMI) and hormonal activity. RESULTS We found statistically significant negative correlations between BMI and expression of all examined receptors in SCS patients (AdipoR1: p= 0.032; AdipoR2: p< 0.001; leptin Ob-R: p= 0.001). In PHEOs, BMI correlated negatively only with AdipoR2 (p= 0.014). CONCLUSIONS Data obtained show that the most significant factor associated with the expression of AdipoR1, AdipoR2 and leptin Ob-R receptors in the adrenal tumor tissue is BMI, not their hormonal activity.
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Affiliation(s)
- Anna Babińska
- Department of Endocrinology and Internal Medicine, Medical University of Gdansk, Poland
| | - Rafał Pȩksa
- Department of Pathology, Medical University of Gdansk, Poland
| | | | - Piotr Wiśniewski
- Department of Endocrinology and Internal Medicine, Medical University of Gdansk, Poland
| | - Krzysztof Sworczak
- Department of Endocrinology and Internal Medicine, Medical University of Gdansk, Poland
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28
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Wei G, Yi S, Yong D, Shaozhuang L, Guangyong Z, Sanyuan H. miR-320 mediates diabetes amelioration after duodenal-jejunal bypass via targeting adipoR1. Surg Obes Relat Dis 2018; 14:960-71. [PMID: 29960867 DOI: 10.1016/j.soard.2018.03.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 01/28/2018] [Accepted: 03/06/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND Duodenal-jejunal bypass (DJB) surgery can improve type 2 diabetes (T2D) dramatically. Accumulating evidence implicates deficiency of hepatic adiponectin signaling as a contributor to gluconeogenesis disorders, and some microRNAs (miRNAs) regulate adiponectin receptors (AdipoR1, AdipoR2). We investigated the effects of DJB on hepatic gluconeogenesis, lipid metabolism, and inflammation as well as the effects of miRNA-320 (AdipoR1-targeting miRNA) on DJB-induced T2D amelioration. OBJECTIVES To investigate the essential role of miRNAs in regulation of adiponectin signaling by targeting AdipoR1 in DJB and the underlying mechanisms. SETTING University Hospital, China. METHODS We studied hepatic adiponectin signaling changes and hepatic miRNAs involved in a rat model of DJB. We investigated the effects of miR-320 on AdipoR1 signaling in buffalo rat liver cell lines. Liver tissues and glucose tolerance tests were analyzed in DJB rats injected with lentivirus encoding a miR-320 mimic. RESULTS Transfection with a miR-320 mimic reduced AdipoR1 protein levels and inhibited downstream adiponectin signaling; transfection with a miR-320 inhibitor elicited the opposite effects. A luciferase assay confirmed that miR-320 binds to the 3'-untranslated regions of AdipoR1. Global upregulation of miR-320 expression in DJB rats showed impaired gluconeogenesis, lipid metabolism, and relatively higher expression of inflammation markers. CONCLUSION miR-320 regulates the adipoR1-mediated amelioration of T2D in DJB and should be explored as a potential target for T2D treatment.
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29
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Xu N, Zhang Y, Doycheva DM, Ding Y, Zhang Y, Tang J, Guo H, Zhang JH. Adiponectin attenuates neuronal apoptosis induced by hypoxia-ischemia via the activation of AdipoR1/APPL1/LKB1/AMPK pathway in neonatal rats. Neuropharmacology 2018; 133:415-428. [PMID: 29486166 DOI: 10.1016/j.neuropharm.2018.02.024] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 02/15/2018] [Accepted: 02/23/2018] [Indexed: 02/03/2023]
Abstract
Adiponectin is an important adipocyte-derived plasma protein that has beneficial effects on cardio- and cerebrovascular diseases. A low level of plasma Adiponectin is associated with increased mortality post ischemic stroke; however, little is known about the causal role of Adiponectin as well as its molecular mechanisms in neonatal hypoxia ischemia (HI). In the present study, ten-day-old rat pups were subjected to right common carotid artery ligation followed by 2.5 h hypoxia. Recombinant human Adiponectin (rh-Adiponectin) was administered intranasally 1 h post HI. Adiponectin Receptor 1 (AdipoR1) siRNA, APPL1 siRNA, LKB1 siRNA were administered through intracerebroventricular injection 48 h before HI. Brain infarct area measurement, neurological function test, western blot, Fluoro Jade C (FJC), TUNEL, and immunofluorescence staining were conducted. Results revealed that endogenous Adiponectin, AdipoR1 and APPL1 were increased in a time dependent manner after HI. Administration of rh-Adiponectin reduced brain infarct area, neuronal apoptosis, brain atrophy and improved neurological function at 24 h and 4 weeks post HI. Furthermore, rh-Adiponectin treatment increased Adiponectin, AdipoR1, APPL1, cytosolic LKB1, p-AMPK expression levels and thereby attenuated apoptosis as shown by the decreased expression of the pro-apoptotic marker, Cleaved Caspase 3 (C-Cas3), as well as the number of FJC and TUNEL positively stained neurons. AdipoR1, APPL1 and LKB1 siRNAs abolished the anti-apoptotic effects of rh-Adiponectin at 24 h after HI. Collectively, the data provided evidence that intranasal administration of rh-Adiponectin attenuated neuronal apoptosis at least in part via activating AdipoR1/APPL1/LKB1/AMPK signaling pathway. Adiponectin could represent a therapeutic target for treatment of neonatal hypoxic ischemic encephalopathy.
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Affiliation(s)
- Ningbo Xu
- The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China; Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Yixin Zhang
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Desislava Met Doycheva
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Yan Ding
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Yiting Zhang
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Jiping Tang
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Hongbo Guo
- The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.
| | - John H Zhang
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA; Department of Anesthesiology, Neurosurgery and Neurology, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA.
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Alzahrani B, Iseli T, Ramezani-Moghadam M, Ho V, Wankell M, Sun EJ, Qiao L, George J, Hebbard LW. The role of AdipoR1 and AdipoR2 in liver fibrosis. Biochim Biophys Acta Mol Basis Dis 2017; 1864:700-708. [PMID: 29237572 DOI: 10.1016/j.bbadis.2017.12.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 12/05/2017] [Accepted: 12/08/2017] [Indexed: 12/17/2022]
Abstract
Activation of the adiponectin (APN) signaling axis retards liver fibrosis. However, understanding of the role of AdipoR1 and AdipoR2 in mediating this response is still rudimentary. Here, we sought to elucidate the APN receptor responsible for limiting liver fibrosis by employing AdipoR1 and AdipoR2 knock-out mice in the carbon tetrachloride (CCl4) model of liver fibrosis. In addition, we knocked down receptor function in primary hepatic stellate cells (HSCs) in vitro. Following the development of fibrosis, AdipoR1 and AdipoR2 KO mice had no quantitative difference in fibrosis by Sirius red staining. However, AdipoR2 KO mice had an enhanced fibrotic signature with increased Col1-α1, TGFß-1, TIMP-1, IL-10, MMP-2 and MMP-9. Knockdown of AdipoR1 or AdipoR2 in HSCs followed by APN treatment demonstrated that AdipoR1 and AdipoR2 did not affect proliferation or TIMP-1 gene expression, while AdipoR2 modulated Col1-α1 and α-SMA gene expression, HSC migration, and AMPK activity. These finding suggest that AdipoR2 is the major APN receptor on HSCs responsible for mediating its anti-fibrotic effects.
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Affiliation(s)
- Badr Alzahrani
- The Storr Liver Centre, Westmead Institute of Medical Research, University of Sydney at Westmead Hospital, Westmead, New South Wales 2145, Australia
| | - Tristan Iseli
- The Storr Liver Centre, Westmead Institute of Medical Research, University of Sydney at Westmead Hospital, Westmead, New South Wales 2145, Australia
| | - Mehdi Ramezani-Moghadam
- The Storr Liver Centre, Westmead Institute of Medical Research, University of Sydney at Westmead Hospital, Westmead, New South Wales 2145, Australia
| | - Vikki Ho
- The Storr Liver Centre, Westmead Institute of Medical Research, University of Sydney at Westmead Hospital, Westmead, New South Wales 2145, Australia
| | - Miriam Wankell
- Department of Molecular and Cell Biology, Centre for Comparative Genomics, The Centre for Biodiscovery and Molecular Development of Therapeutics, James Cook University, Australian Institute of Tropical Health and Medicine, Townsville, QLD, 4811, Australia
| | - Eun Jin Sun
- Department of Molecular and Cell Biology, Centre for Comparative Genomics, The Centre for Biodiscovery and Molecular Development of Therapeutics, James Cook University, Australian Institute of Tropical Health and Medicine, Townsville, QLD, 4811, Australia
| | - Liang Qiao
- The Storr Liver Centre, Westmead Institute of Medical Research, University of Sydney at Westmead Hospital, Westmead, New South Wales 2145, Australia
| | - Jacob George
- The Storr Liver Centre, Westmead Institute of Medical Research, University of Sydney at Westmead Hospital, Westmead, New South Wales 2145, Australia
| | - Lionel W Hebbard
- Department of Molecular and Cell Biology, Centre for Comparative Genomics, The Centre for Biodiscovery and Molecular Development of Therapeutics, James Cook University, Australian Institute of Tropical Health and Medicine, Townsville, QLD, 4811, Australia; The Storr Liver Centre, Westmead Institute of Medical Research, University of Sydney at Westmead Hospital, Westmead, New South Wales 2145, Australia.
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Fu S, Xu H, Gu M, Liu C, Wan X, Chen Y, Chen Q, Zhou J, Wang Z. Lack of adiponectin and adiponectin receptor 1 contributes to benign prostatic hyperplasia. Oncotarget 2017; 8:88537-88551. [PMID: 29179455 PMCID: PMC5687625 DOI: 10.18632/oncotarget.19877] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 07/11/2017] [Indexed: 01/08/2023] Open
Abstract
PURPOSE The incidence of benign prostatic hyperplasia increases among obese individuals, but few studies have fully explained the underlying mechanisms. Adiponectin has drawn much attention in recent years due to its protective role in obesity-related diseases. Here we aimed to investigate the possible molecular mechanisms and clinical significance of adiponectin in relation to benign prostatic hyperplasia. METHODS We analyzed data from 98 Chinese men, including 48 BPH cases and 50 controls in a case-control study. Then, we utilized a tissue microarray analysis to examine expression of AdipoR1 and p-p90RSK in normal and hyperplastic prostate tissues. These studies were followed by various in vitro approaches to examine the anti-proliferation effect and signaling pathways of adiponectin involved in benign prostatic hyperplasia. RESULTS Lower serum adiponectin levels were independently associated with larger prostate volume and an increased risk of benign prostatic hyperplasia. Benign prostatic hyperplasia tissues had a decreased expression of AdipoR1 and increased expression of p-p90RSK compared with normal prostate tissues. in vitro, adiponectin inhibited the proliferation of prostatic epithelial and stromal cells and arrested cells in the G0/G1 phase by decreasing phosphorylation of the MEK-ERK-p90RSK axis. CONCLUSIONS Our results suggest a possible negative regulatory mechanism in which adiponectin signaling antagonizes ERK-mediated cell proliferation, and a deficiency in adiponectin could facilitate the proliferation of prostate cells and consequently contribute to benign prostatic hyperplasia.
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Affiliation(s)
- Shi Fu
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Huan Xu
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Meng Gu
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Chong Liu
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Xiang Wan
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Yanbo Chen
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Qi Chen
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Juan Zhou
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Zhong Wang
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
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Li X, Dai Y, Yan S, Shi Y, Han B, Li J, Cha L, Mu J. Down-regulation of lncRNA KCNQ1OT1 protects against myocardial ischemia/reperfusion injury following acute myocardial infarction. Biochem Biophys Res Commun 2017; 491:1026-1033. [PMID: 28780351 DOI: 10.1016/j.bbrc.2017.08.005] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 08/01/2017] [Indexed: 12/31/2022]
Abstract
This study aimed to investigate the protective effects of long non-coding RNA KCNQ1OT1 against myocardial ischemia/reperfusion (I/R) injury following acute myocardial infarction, as well as its regulatory mechanism. We used the cardiac muscle H9c2 cells under condition of oxygen glucose deprivation followed by reperfusion (OGD/R) to induce myocardial I/R injury. Then H9C2 cells were transfected with si-NC, si-KCNQ1OT1, pc-NC, pc-KCNQ1OT1, si-AdipoR1 and si-AdipoR2, respectively. The myocardial cell viability and apoptosis were respectively detected. In addition, the expression levels of inflammatory factors, apoptosis-related proteins and p38 MAPK/NF-κB pathway-related proteins were detected. Besides, an inhibitor of p38 MAPK/NF-κB pathway SB203580 was used to treat cells to verify the relationship between KCNQ1OT1 and p38 MAPK/NF-κB pathway. The expression of KCNQ1OT1 was significantly up-regulated in OGD/R-induced myocardial H9C2 cells. The OGD/R-induced decreased cell viability and AdipoR1 expression could be reversed after suppression of KCNQ1OT1. In addition, suppression of KCNQ1OT1 reduced OGD/R-induced increased expressions of TNF-α, IL-6 and IL-1β and OGD/R-induced increased cell apoptosis, which were reversed after knockdown of AdipoR1. Besides, suppression of KCNQ1OT1 significantly down-regulated the OGD/R-induced increased expression of p-p38 and p-NF-κB, which were also reversed after knockdown of AdipoR1. Moreover, SB203580, an inhibitor of p38 MAPK/NF-κB signal pathway, could further enhance the inhibitory effects of KCNQ1OT1 suppression on the expression of p-p38, TNF-α, IL-6, IL-1β and p-NF-κB in OGD/R-induced myocardial H9C2 cells. Suppression of KCNQ1OT1 may prevent myocardial I/R injury following acute myocardial infarction via regulating AdipoR1 and involving in p38 MAPK/NF-κB signal pathway.
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Affiliation(s)
- Xin Li
- Department of Cardiology, The First Affiliated Hospital of Medical College of Xi'AN JIAOTONG University, Xian, Shanxi 710061, China; Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Yingnan Dai
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Shujun Yan
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Yanli Shi
- Department of Record Room, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Baihe Han
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Jingxiu Li
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Li Cha
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Jianjun Mu
- Department of Cardiology, The First Affiliated Hospital of Medical College of Xi'AN JIAOTONG University, Xian, Shanxi 710061, China.
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Karimi A, Joukar S, Najafipour H, Masoumi-Ardakani Y, Shahouzehi B. Low-intensity endurance exercise plus nandrolone decanoate modulates cardiac adiponectin and its receptors. ACTA ACUST UNITED AC 2017; 37:29-33. [PMID: 28544314 DOI: 10.1111/aap.12056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 02/17/2017] [Accepted: 03/07/2017] [Indexed: 12/12/2022]
Abstract
Vast adverse effects of anabolic-androgenic steroids (AASs) on athletes' cardiovascular systems have been reported. However, there is still a lack of adequate information regarding the pathways and mechanisms involved. We tested the hypothesis that adiponectin and its receptors in the heart may be affected by long-term use of AASs alongside exercising. Male Wistar rats were randomized into the control (CTL), exercise (EX), nandrolone (Nan), arachis (Arach) group which treated with arachis as vehicle, trained vehicle (EX+Arach) and trained nandrolone (EX+Nan) groups that were treated for 8 weeks. One day after the end of the protocol, animals were sacrificed and their hearts were frozen. TNF-α and adiponectin proteins of hearts were evaluated quantitatively by ELISA kits, and Western blot analysis was used for measuring adiponectin receptor protein expression. TNF-α protein increased significantly in the EX+Nan group (P<.05 vs CTL group). The AdipoR1 protein was significantly higher in the presence of nandrolone alongside exercise (P<.05 vs Nan and EX+Arach groups, P<.01 vs CTL and Arach groups). In addition, AdipoR2 protein enhanced in the EX+Nan group when compared with the other groups (P<.05 vs EX and EX+Arach groups, P<.01 vs CTL, Arach and Nan groups). Chronic nandrolone plus mild endurance exercise may be associated with imbalance in pro-/anti-inflammatory cytokines and may induce a positive modulatory effect on cardiac adiporeceptors in rat. Further studies are required before these findings can be generalized to humans.
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Affiliation(s)
- A Karimi
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - S Joukar
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran.,Department of Physiology and Pharmacology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - H Najafipour
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Y Masoumi-Ardakani
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - B Shahouzehi
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
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Li T, Li M, Hu S, Cheng X, Gao Y, Jiang S, Yu Q, Zhang C, Sun P, Xian W, Song Z, Zhang Y, Zheng Q. MiR-221 mediates the epithelial-mesenchymal transition of hepatocellular carcinoma by targeting AdipoR1. Int J Biol Macromol 2017; 103:1054-1061. [PMID: 28539268 DOI: 10.1016/j.ijbiomac.2017.05.108] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 05/15/2017] [Accepted: 05/17/2017] [Indexed: 02/07/2023]
Abstract
Recent studies have shown that miRNAs play vital roles in tumorigenesis. However, their effects on the epithelial-mesenchymal transition (EMT) in hepatocellular carcinoma (HCC) need to be better understood. Our present study demonstrates that miR-221, which is overexpressed in HCC tissues, promotes EMT in HCC cell lines by targeting a new gene, AdipoR1. First, overexpression of miR-221 was identified in 40 pairs of human HCC tumor and matched normal tissues. Moreover, we found that elevated miR-221 was strongly associated with worse clinicopathologic features in HCC patients. Next, the loss of miR-221 inhibited, but its restoration enhanced, the EMT process in HCC cell lines. Furthermore, bioinformatics software predicted that AdipoR1 would be a direct target of miR-221. We then observed negative regulation of miR-221 on AdipoR1 protein expression, and direct binding between them was further verified using dual-luciferase assays. In addition, knockdown of AdipoR1 resulted in promotion of the EMT in HCC cells, and AdipoR1 overexpression reversed the miR-221-induced EMT. Lastly, we found that the JAK/STAT3 pathway may be involved in the AdipoR1-mediated EMT process. In conclusion, miR-221 acts as a promoter of the EMT process in HCC cells by targeting AdipoR1, and this study highlights the potential effects of miR-221 on the prognosis and treatment of HCC.
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Affiliation(s)
- Tong Li
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Min Li
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Shaobo Hu
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Xiang Cheng
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Yang Gao
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Shuai Jiang
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Qihong Yu
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Chen Zhang
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Ping Sun
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Wenjing Xian
- Department of Anesthesia, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Zifang Song
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Yong Zhang
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China
| | - Qichang Zheng
- Department of Hepatobiliary surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan 430022, China.
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Várhelyi ZP, Kálmán J, Oláh Z, Ivitz EV, Fodor EK, Sántha M, Datki ZL, Pákáski M. Adiponectin Receptors Are Less Sensitive to Stress in a Transgenic Mouse Model of Alzheimer's Disease. Front Neurosci 2017; 11:199. [PMID: 28442988 PMCID: PMC5386987 DOI: 10.3389/fnins.2017.00199] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/24/2017] [Indexed: 12/23/2022] Open
Abstract
Background: Adiponectin and leptin are implicated in the initiation and pathomechanism of Alzheimer's disease (AD). The serum concentrations of these adipokines has been extensively studied in AD, however little is known about their receptors in this disease. Objective: We developed a novel approach to examine whether the receptors of adiponectin (AdipoR1 and -R2) and/or leptin (LepR) can contribute to AD pathomechanism. To achieve this, we investigated the effect of both genetic and environmental factors associated with AD on the expression of these receptors. Method: We used C57BL/6J (WT) and APP(swe)/Presen(e9d)1 (AD) mice. Both strains were exposed to restraint stress (RS) daily for 6h over different time periods. Then, we measured the mRNA expression of AdipoR1, AdipoR2 and LepR and the level of AdipoR1 and AdipoR2 proteins in the hippocampal and prefrontal cortical areas of each mouse. Results: We detected brain region specific transcriptomic changes of adiponectin receptors induced by APP and PS1 transgenes. Both acute and chronic RS caused significant elevations in AdipoR1 mRNA expression in the hippocampus of WT mice. In the prefrontal cortex, the mRNA expression of AdipoR1 followed a biphasic course. In AD mice, RS did not promote any changes in the expression of AdipoR1 mRNA and AdipoR1 protein levels. AdipoR2 mRNA in AD animals, however, showed a significant increase in the prefrontal cortex during RS. Regarding AdipoR1 and AdipoR2 mRNA and protein expression, relevant changes could be measured during stress exposure in both brain areas. Furthermore, stress exposed groups exhibited little change in LepR mRNA expression. Conclusion: Our findings indicate that carrying the transgenes associated with AD induces modification in the expression of both adiponectin receptors. In the case of a normal genetic background, these receptors also appear to be sensitive to environmental factors, while in a genetically determined AD model less response to stress stimuli could be observed. The results suggest that modification of adipokine receptors could also be considered in the therapeutic approach to AD.
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Affiliation(s)
- Zoltán P Várhelyi
- Department of Psychiatry, Faculty of Medicine, University of SzegedSzeged, Hungary
| | - János Kálmán
- Department of Psychiatry, Faculty of Medicine, University of SzegedSzeged, Hungary
| | - Zita Oláh
- Department of Psychiatry, Faculty of Medicine, University of SzegedSzeged, Hungary
| | - Eszter V Ivitz
- Department of Psychiatry, Faculty of Medicine, University of SzegedSzeged, Hungary
| | - Eszter K Fodor
- Department of Psychiatry, Faculty of Medicine, University of SzegedSzeged, Hungary
| | - Miklós Sántha
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of SciencesSzeged, Hungary
| | - Zsolt L Datki
- Department of Psychiatry, Faculty of Medicine, University of SzegedSzeged, Hungary
| | - Magdolna Pákáski
- Department of Psychiatry, Faculty of Medicine, University of SzegedSzeged, Hungary
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Li Y, Shan F, Chen J. Lipid raft-mediated miR-3908 inhibition of migration of breast cancer cell line MCF-7 by regulating the interactions between AdipoR1 and Flotillin-1. World J Surg Oncol 2017; 15:69. [PMID: 28327197 PMCID: PMC5361711 DOI: 10.1186/s12957-017-1120-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 02/14/2017] [Indexed: 02/01/2023] Open
Abstract
Background The mechanisms of lipid raft regulation by microRNAs in breast cancer are not fully understood. This work focused on the evaluation and identification of miR-3908, which may be a potential biomarker related to the migration of breast cancer cells, and elucidates lipid-raft-regulating cell migration in breast cancer. Methods To confirm the prediction that miR-3908 is matched with AdipoR1, we used 3’-UTR luciferase activity of AdipoR1 to assess this. Then, human breast cancer cell line MCF-7 was cultured in the absence or presence of the mimics or inhibitors of miR-3908, after which the biological functions of MCF-7 cells were analyzed. The protein expression of AdipoR1, AMPK, and SIRT-1 were examined. The interaction between AdipoR1 and Flotillin-1, or its effects on lipid rafts on regulating cell migration of MCF-7, was also investigated. Results AdipoR1 is a direct target of miR-3908. miR-3908 suppresses the expression of AdipoR1 and its downstream pathway genes, including AMPK, p-AMPK, and SIRT-1. miR-3908 enhances the process of breast cancer cell clonogenicity. miR-3908 exerts its effects on the proliferation and migration of MCF-7 cells, which are mediated by lipid rafts regulating AdipoR1’s ability to bind Flotillin-1. Conclusions miR-3908 is a crucial mediator of the migration process in breast cancer cells. Lipid rafts regulate the interactions between AdipoR1 and Flotillin-1 and then the migration process associated with miR-3908 in MCF-7 cells. Our findings suggest that targeting miR-3908 and the lipid raft, may be a promising strategy for the treatment and prevention of breast cancer.
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Affiliation(s)
- Yuan Li
- Department of Obstetrics and Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100048, China
| | - Fei Shan
- Department of Cardiac Surgery, Affiliated Hospital of Medical College of Yan'an University, Yan'an, Shanxi, 716000, China
| | - Jinglong Chen
- Department of Oncology, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, China.
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Sopić M, Joksić J, Spasojević-Kalimanovska V, Bogavac-Stanojević N, Simić-Ogrizović S, Kravljača M, Jelić Ivanović Z. Downregulation of AdipoR1 is Associated with increased Circulating Adiponectin Levels in Serbian Chronic Kidney Disease Patients. J Med Biochem 2016; 35:436-442. [PMID: 28670196 PMCID: PMC5471639 DOI: 10.1515/jomb-2016-0007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 01/19/2016] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Since the rise in plasma adiponectin levels in chronic kidney disease (CKD) patients has not yet been elucidated, we sought to investigate if patients on hemodialysis (HD) have altered expression of adiponectin receptors in peripheral blood mononuclear cells (PBMCs) compared to healthy subjects. METHODS This study included 31 patients with chronic kidney disease on HD and 33 healthy subjects (CG). Circulating adiponectin levels were measured by ELISA while AdipoR1 and AdipoR2 mRNA levels in PBMCs were determined by real-time PCR. RESULTS Plasma adiponectin levels were significantly higher in patients compared to control group (P=0.036). After adjustment for age, BMI and creatinine, this difference became even more significant (P=0.004). In both groups adiponectin correlated with creatinine (CG: r=-0.472, P=0.006; HD: r=-0.375, P=0.038), triglycerides (CG: r=- 0.490, P=0.004; HD: r=-0.488, P=0.005), insulin (CG: r=-0.386, P=0.038; HD: r=-0.506, P=0.012) and high density lipoprotein cholesterol (HDL-C) (CG: r=-0.672, P<0.001; HD: r=-0.584, P=0.001). Significantly lower expression of PBMCs AdipoR1 mRNA was found in patients compared to CG (P=0.034), while AdipoR2 mRNA levels were similarly expressed in PBMCs in both groups. CONCLUSIONS Complex pathological processes in CKD cause downregulation of AdipoR1 which could ultimately influence AdipoR1 protein levels leading to a state of ≫adiponectin resistance≪.
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Affiliation(s)
- Miron Sopić
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Jelena Joksić
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | | | | | - Sanja Simić-Ogrizović
- Clinic of Nephrology, Clinical Center of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Serbia
| | - Milica Kravljača
- Clinic of Nephrology, Clinical Center of Serbia, Belgrade, Serbia
| | - Zorana Jelić Ivanović
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
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Abstract
Fundamental questions remain unresolved in diabetes: What is the actual mechanism of glucose toxicity? Why is there insulin resistance in type 2 diabetes? Why do diets rich in sugars or saturated fatty acids increase the risk of developing diabetes? Studying the C. elegans homologs of the anti-diabetic adiponectin receptors (AdipoR1 and AdipoR2) has led us to exciting new discoveries and to revisit what may be termed “The Membrane Theory of Diabetes”. We hypothesize that excess saturated fatty acids (obtained through a diet rich in saturated fats or through conversion of sugars into saturated fats via lipogenesis) leads to rigid cellular membranes that in turn impair insulin signalling, glucose uptake and blood circulation, thus creating a vicious cycle that contributes to the development of overt type 2 diabetes. This hypothesis is supported by our own studies in C. elegans and by a wealth of literature concerning membrane composition in diabetics. The purpose of this review is to survey this literature in the light of the new results, and to provide an admittedly membrane-centric view of diabetes.
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Grossini E, Farruggio S, Qoqaiche F, Raina G, Camillo L, Sigaudo L, Mary D, Surico N, Surico D. Monomeric adiponectin modulates nitric oxide release and calcium movements in porcine aortic endothelial cells in normal/high glucose conditions. Life Sci 2016; 161:1-9. [PMID: 27469459 DOI: 10.1016/j.lfs.2016.07.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 07/20/2016] [Accepted: 07/21/2016] [Indexed: 01/12/2023]
Abstract
AIMS Perivascular adipose tissue can be involved in the process of cardiovascular pathology through the release of adipokines, namely adiponectins. Monomeric adiponectin has been shown to increase coronary blood flow in anesthetized pigs through increased nitric oxide (NO) release and the involvement of adiponectin receptor 1 (AdipoR1). The present study was therefore planned to examine the effects of monomeric adiponectin on NO release and Ca(2+) transients in porcine aortic endothelial cells (PAEs) in normal/high glucose conditions and the related mechanisms. MAIN METHODS PAEs were treated with monomeric adiponectin alone or in the presence of intracellular kinases blocker, AdipoR1 and Ca(2+)-ATPase pump inhibitors. The role of Na(+)/Ca(2+) exchanger was examined in experiments performed in zero Na(+) medium. NO release and intracellular Ca(2+) were measured through specific probes. KEY FINDINGS In PAE cultured in normal glucose conditions, monomeric adiponectin elevated NO production and [Ca(2+)]c. Similar effects were observed in high glucose conditions, although the response was lower and not transient. The Ca(2+) mobilized by monomeric adiponectin originated from an intracellular pool thapsigargin- and ATP-sensitive and from the extracellular space. Moreover, the effects of monomeric adiponectin were prevented by kinase blockers and AdipoR1 inhibitor. Finally, in normal glucose condition, a role for Na(+)/Ca(2+) exchanger and Ca(2+)-ATPase pump in restoring Ca(2+) was found. SIGNIFICANCE Our results add new information about the control of endothelial function elicited by monomeric adiponectin, which would be achieved by modulation of NO release and Ca(2+) transients. A signalling related to Akt, ERK1/2 and p38MAPK downstream AdipoR1 would be involved.
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Affiliation(s)
- Elena Grossini
- Lab. Physiology/Experimental Surgery, Dept. of Translational Medicine, University Eastern Piedmont "A. Avogadro", Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, Novara, Via Solaroli 17, Italy.
| | - Serena Farruggio
- Lab. Physiology/Experimental Surgery, Dept. of Translational Medicine, University Eastern Piedmont "A. Avogadro", Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, Novara, Via Solaroli 17, Italy
| | - Fatima Qoqaiche
- Lab. Physiology/Experimental Surgery, Dept. of Translational Medicine, University Eastern Piedmont "A. Avogadro", Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, Novara, Via Solaroli 17, Italy
| | - Giulia Raina
- Lab. Physiology/Experimental Surgery, Dept. of Translational Medicine, University Eastern Piedmont "A. Avogadro", Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, Novara, Via Solaroli 17, Italy
| | - Lara Camillo
- Lab. Physiology/Experimental Surgery, Dept. of Translational Medicine, University Eastern Piedmont "A. Avogadro", Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, Novara, Via Solaroli 17, Italy
| | - Lorenzo Sigaudo
- Lab. Physiology/Experimental Surgery, Dept. of Translational Medicine, University Eastern Piedmont "A. Avogadro", Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, Novara, Via Solaroli 17, Italy
| | - David Mary
- Lab. Physiology/Experimental Surgery, Dept. of Translational Medicine, University Eastern Piedmont "A. Avogadro", Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, Novara, Via Solaroli 17, Italy
| | - Nicola Surico
- Gynecologic Unit, Dept. of Translational Medicine, University Eastern Piedmont "A. Avogadro", Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, Novara, Via Solaroli 17, Italy
| | - Daniela Surico
- Gynecologic Unit, Dept. of Translational Medicine, University Eastern Piedmont "A. Avogadro", Azienda Ospedaliera Universitaria Maggiore della Carità, Corso Mazzini 36, Novara, Via Solaroli 17, Italy
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Zhang P, Huang C, Li J, Li T, Guo H, Liu T, Li N, Zhu Q, Guo Y. Globular CTRP9 inhibits oxLDL-induced inflammatory response in RAW 264.7 macrophages via AMPK activation. Mol Cell Biochem 2016; 417:67-74. [PMID: 27188183 DOI: 10.1007/s11010-016-2714-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 04/27/2016] [Indexed: 12/18/2022]
Abstract
C1q-TNF-related protein-9 (CTRP9) is increasingly recognized as a promising cardioprotective adipocytokine, which regulates biological processes like vascular relaxation, proliferation, apoptosis, and inflammation. We recently showed that CTRP9 enhanced carotid plaque stability by reducing pro-inflammatory cytokines in macrophages. However, the underlying molecular mechanism of CTRP9 on anti-inflammatory response in macrophages still remains unclear. We demonstrated that globular CTRP9 (gCTRP9) significantly reduced oxidized low-density lipoprotein (oxLDL)-induced tumor necrosis factor alpha and monocyte chemoattractant protein 1 expression by suppressing nuclear factor-κB phosphorylation and nuclear translocation in RAW 264.7 macrophages. Treatment with gCTRP9 strikingly increased the level of phosphorylated adenosine monophosphate-activated protein kinase (AMPK). AMPK inhibitor abolished the anti-inflammatory effects of gCTRP9. Moreover, gCTRP9 increased the expression of adiponectin receptor 1 (AdipoR1). Downregulation of AdipoR1 by siRNA could abrogate the activation of AMPK and the anti-inflammatory effects of gCTRP9. These results suggested that gCTRP9 protected RAW 264.7 macrophages from oxLDL via AMPK activation in an AdipoR1 dependent fashion.
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Affiliation(s)
- Peng Zhang
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Chengmin Huang
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Jun Li
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Tingting Li
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Haipeng Guo
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China.,Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Tianjiao Liu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Na Li
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Qing Zhu
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Yuan Guo
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China. .,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China.
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Kadivar A, Heidari Khoei H, Hassanpour H, Golestanfar A, Ghanaei H. Correlation of Adiponectin mRNA Abundance and Its Receptors with Quantitative Parameters of Sperm Motility in Rams. Int J Fertil Steril 2016; 10:127-35. [PMID: 27123210 PMCID: PMC4845523 DOI: 10.22074/ijfs.2016.4778] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 07/21/2015] [Indexed: 12/18/2022]
Abstract
Background Adiponectin and its receptors (AdipoR1 and AdipoR2), known as adiponectin
system, have some proven roles in the fat and glucose metabolisms. Several studies have
shown that adiponectin can be considered as a candidate in linking metabolism to testicular
function. In this regard, we evaluated the correlation between sperm mRNA abundance of
adiponectin and its receptors, with sperm motility indices in the present study. Materials and Methods In this completely randomized design study, semen samples from 6 adult rams were fractionated on a two layer discontinuous percoll gradient into high and low motile sperm cells, then quantitative parameters of sperm
motility were determined by computer-assisted sperm analyzer (CASA). The mRNA
abundance levels of Adiponectin, AdipoR1 and AdipoR2 were measured quantitatively using real-time reverse transcriptase polymerase chain reaction (qRT-PCR) in
the high and low motile groups. Results Firstly, we showed that adiponectin and its receptors (AdipoR1 and AdipoR2)
were transcriptionally expressed in the ram sperm cells. Using Pfaff based method qRT-
PCR, these levels of transcription were significantly higher in the high motile rather than
low motile samples. This increase was 3.5, 3.6 and 2.5 fold change rate for Adiponectin,
AdipoR1 and AdipoR2, respectively. Some of sperm motility indices [curvilinear velocity
(VCL), straight-line velocity (VSL), average path velocity (VAP), linearity (LIN), wobble (WOB) and straightness (STR)] were also significantly correlated with Adiponectin
and AdipoR1 relative expression. The correlation of AdipoR2 was also significant with
the mentioned parameters, although this correlation was not comparable with adiponectin
and AdipoR1. Conclusion This study revealed the novel association of adiponectin system with sperm
motility. The results of our study suggested that adiponectin is one of the possible factors
which can be evaluated and studied in male infertility disorders.
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Affiliation(s)
- Ali Kadivar
- Department of Clinical Science, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran; Research Institute of Biotechnology, Shahrekord University, Shahrekord, Iran
| | - Heidar Heidari Khoei
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran; Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Hassanpour
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - Arefe Golestanfar
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - Hamid Ghanaei
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
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Artimani T, Saidijam M, Aflatoonian R, Ashrafi M, Amiri I, Yavangi M, SoleimaniAsl S, Shabab N, Karimi J, Mehdizadeh M. Downregulation of adiponectin system in granulosa cells and low levels of HMW adiponectin in PCOS. J Assist Reprod Genet 2015; 33:101-10. [PMID: 26631404 DOI: 10.1007/s10815-015-0620-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 11/12/2015] [Indexed: 11/26/2022] Open
Abstract
PURPOSE The purpose of the study was to investigate changes in adiponectin system expression in granulosa cells (GCs) and high molecular weight adiponectin levels in serum and follicular fluid (FF) of 40 women with polycystic ovary syndrome (PCOS) compared to those in 40 women with normal ovary function. METHODS Adiponectin (Adipo), adiponectin receptor 1 (AdipoR1), and adiponectin receptor 2 (AdipoR2) messenger RNA (mRNA) expression levels were measured using quantitative real-time polymerase chain reaction (qRT-PCR). High molecular weight (HMW) adiponectin protein concentration was evaluated by ELISA method. Data were analyzed using Student's t test and one-way ANOVA in SPSS 21 software. At oocyte retrieval, FF was aspirated and GCs were obtained from a pooled collection of FF per each patient. RESULTS PCR results showed expression of adiponectin, AdipoR1, AdipoR2, follicle-stimulating hormone receptor (FSHR), and luteinizing hormone receptor (LHR) in GCs. After controlling body mass index (BMI) values, qRT-PCR demonstrated a decreased expression of adiponectin system in GCs of PCOS patients compared to those in controls (p = 0.001). There was a strong positive correlation among AdipoR1 and AdipoR2 expression and also among FSH and LH receptor expression. (Both r = 0.8, p = 0.001). There were low levels of high molecular weight adiponectin in the serum of PCOS patients with controlled ovarian hyperstimulation (30.19 ± 4.3 ng/ml) compared to the controls (48.47 ± 5.9 ng/ml) and in the FF of PCOS patients with controlled ovarian hyperstimulation (7.86 ± 1.44 ng/ml) compared to the controls (14.22 ± 2.01 ng/ml; p = 0.02). CONCLUSIONS Lower expression of adiponectin and its receptors in GCs might be an important manifestation in gonadotropin-stimulated PCOS patients which could influence the physiologic adiponectin roles such as interaction with insulin and LH in induction of GC gene expression.
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Affiliation(s)
- Tayebe Artimani
- Anatomy Department, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Massoud Saidijam
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Reza Aflatoonian
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mahnaz Ashrafi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Iraj Amiri
- Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mahnaz Yavangi
- Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Sara SoleimaniAsl
- Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Nooshin Shabab
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Jamshid Karimi
- Department of Clinical Biochemistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mehdi Mehdizadeh
- Anatomy Department, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
- Cellular and Molecular Research Center, Faculty of Advanced Technology in Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Zhang L, Wen K, Han X, Liu R, Qu Q. Adiponectin mediates antiproliferative and apoptotic responses in endometrial carcinoma by the AdipoRs/AMPK pathway. Gynecol Oncol 2015; 137:311-20. [PMID: 25703675 DOI: 10.1016/j.ygyno.2015.02.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 02/09/2015] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Determine the serum adiponectin levels in endometrial carcinoma (EC) cases and controls and explore the correlation between them. We assessed the functions of AdipoR1 and AdipoR2 in endometrial cancer cells to determine whether the AMPK/ERK and Akt pathways mediate the effects of adiponectin-induced apoptosis and anti-proliferation. MATERIAL AND METHODS The serum adiponectin levels were measured via enzyme-linked immunosorbent assay (ELISA). The proliferation and apoptosis rates were determined with MTT and annexin V/PI assays. To evaluate the activation of AMPK, ERK, and Akt and the expression of Bcl-2 and Cyclin D1, western blot analysis was performed in Ishikawa 3-H-12 cells. We down-regulated AdipoRs by si-RNA to assess their functions. RESULTS The serum adiponectin levels were significantly decreased in patients with EC compared to controls. The adiponectin-induced apoptosis and anti-proliferation effects in EC cells were blocked by Compound C. Ishikawa 3-H-12 cells exhibited time- and dose-dependent increases in the p-AMPK levels after treatment with adiponectin. Adiponectin treatment reduced the levels of ERK and Akt phosphorylations and cyclin D1 and Bcl-2 mRNA and protein expression. Compound C blocked the effects on ERK, Akt, cyclin D1, and Bcl-2. AdipoR1 and AdipoR2 were involved in adiponectin-induced growth inhibition and ERK activation inhibition. We speculated that AdipoR1 has a greater role than adipoR2 in apoptosis and Akt activation inhibition after adiponectin treatment. CONCLUSION Adiponectin was an apoptotic and anti-proliferation agent for EC cells, and these effects were dependent on the AMPK/ERK and Akt pathways. AdipoR1 and AdipoR2 may play different roles in this process.
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Krishna A. Modulation of ovarian steroidogenesis by adiponectin during delayed embryonic development of Cynopterus sphinx. J Steroid Biochem Mol Biol 2014; 143:291-305. [PMID: 24787661 DOI: 10.1016/j.jsbmb.2014.04.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 04/16/2014] [Accepted: 04/20/2014] [Indexed: 12/20/2022]
Abstract
The aim of present study was to evaluate role of adiponectin in ovarian steroidogenesis during delayed embryonic development of Cynopterus sphinx. This study showed significantly low circulating adiponectin level and a decline in expression of adiponectin receptor 1 (AdipoR1) in the ovary during the period of delayed embryonic development as compared with the normal development. The adiponectin treatment in vivo during the period of delayed development caused significantly increased in circulating progesterone and estradiol levels together with increased expression of AdipoR1 in the ovary. The in vitro study confirmed the stimulatory effect of adiponectin on progesterone synthesis. Both in vivo and in vitro studies showed that the effects of adiponectin on ovarian steroidogenesis were mediated through increased expression of luteinizing hormone-receptor, steroidogenic acute regulatory protein and 3β-hydroxyl steroid dehydrogenase enzyme. The adiponectin treatment may also promote progesterone synthesis by modulating ovarian angiogenesis, cell survival and rate of apoptosis.
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Affiliation(s)
- Amitabh Krishna
- Department of Zoology, Banaras Hindu University, Varanasi 221 005, India.
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Parker-Duffen JL, Nakamura K, Silver M, Zuriaga MA, MacLauchlan S, Aprahamian TR, Walsh K. Divergent roles for adiponectin receptor 1 ( AdipoR1) and AdipoR2 in mediating revascularization and metabolic dysfunction in vivo. J Biol Chem 2014; 289:16200-13. [PMID: 24742672 DOI: 10.1074/jbc.m114.548115] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Adiponectin is a well described anti-inflammatory adipokine that is highly abundant in serum. Previous reports have found that adiponectin deficiency promotes cardiovascular and metabolic dysfunction in murine models, whereas its overexpression is protective. Two candidate adiponectin receptors, AdipoR1 and AdipoR2, are uncharacterized with regard to cardiovascular tissue homeostasis, and their in vivo metabolic functions remain controversial. Here we subjected AdipoR1- and AdipoR2-deficient mice to chronic hind limb ischemic surgery. Blood flow recovery in AdipoR1-deficient mice was similar to wild-type; however, revascularization in AdipoR2-deficient mice was severely attenuated. Treatment with adiponectin enhanced the recovery of wild-type mice but failed to rescue the impairment observed in AdipoR2-deficient mice. In view of this divergent receptor function in the hind limb ischemia model, AdipoR1- and AdipoR2-deficient mice were also evaluated in a model of diet-induced obesity. Strikingly, AdipoR1-deficient mice developed severe metabolic dysfunction compared with wild type, whereas AdipoR2-deficient mice were protected from diet-induced weight gain and metabolic perturbations. These data show that AdipoR2, but not AdipoR1, is functionally important in an in vivo model of ischemia-induced revascularization and that its expression is essential for the revascularization actions of adiponectin. These data also show that, in contrast to revascularization responses, AdipoR1, but not AdipoR2 deficiency, leads to diet-induced metabolic dysfunction, revealing that these receptors have highly divergent roles in vascular and metabolic homeostasis.
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Affiliation(s)
- Jennifer L Parker-Duffen
- From the Whitaker Cardiovascular Institute, Department of Pharmacology and Experimental Therapeutics and
| | | | | | | | | | - Tamar R Aprahamian
- From the Whitaker Cardiovascular Institute, Department of Medicine-Renal Section, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Kenneth Walsh
- From the Whitaker Cardiovascular Institute, Department of Pharmacology and Experimental Therapeutics and
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Abstract
The skeleton should maintain an adequate volume, vigour and strength to carry out the role for which it is designed: to hold the whole soft tissue mass that shapes the body and to protect the vital organs. To fulfil this task a satisfactory food intake is required and regulators that are released in the feeding and fasting states, among other signals indicate how much soft mass needs to be built up. Those signals include the secretion of adipocytokines which could represent a relevant link between soft mass (adipose tissue) and skeleton. We studied the presence of adiponectin receptors (AdipoR1, AdipoR2) and its direct effects in osteosarcoma cell line Saos-2. The results indicated that adiponectin receptors were present in the osteoblastic cells with a higher expression of AdipoR1. Human recombinant globular adiponectin was able to increase viability levels and decrease cytotoxicity rates in cell cultures. Also, adiponectin significantly inhibited alkaline phosphatase activity in supernatants. Osteoprotegerin mRNA expression was significantly reduced after 72 h treatment. The FOS induction was studied and the results exhibited a significant increase caused by adiponectin. In conclusion, all these observations suggest that adiponectin influences bone metabolism decreasing the levels of bone formation. Regulators of adiponectin or its receptors could be circulating to modulate the activities of this peptide.
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Abstract
Over the past two decades, adiponectin has been studied in more than eleven thousand publications. A classical adipokine, adiponectin was among the first factors secreted from adipose tissue that were found to promote metabolic function. Circulating levels of adiponectin consistently decline with increasing body mass index. Clinical and basic science studies have identified adiponectin's cardiovascular-protective actions, providing a mechanistic link to the increased incidence of cardiovascular disease in obese individuals. While progress has been made in identifying receptors essential for the metabolic actions of adiponectin (AdipoR1 and AdipoR2), few studies have examined the receptor-mediated signaling pathways in cardiovascular tissues. T-cadherin, a GPI-anchored adiponectin-binding protein, was recently identified as critical for the cardiac-protective and revascularization actions of adiponectin. Adiponectin is abundantly present on the surfaces of vascular and muscle tissues through a direct interaction with T-cadherin. Consistent with this observation, adiponectin is absent from T-cadherin-deficient tissues. Since T-cadherin lacks an intracellular domain, additional studies would further our understanding of this signaling pathway. Here, we review the diverse cardiometabolic actions of adiponectin.
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Affiliation(s)
- Jennifer L Parker-Duffen
- Whitaker Cardiovascular Institute, Boston University School of Medicine, 715 Albany Street, W611, Boston, MA 02118, USA.
| | - Kenneth Walsh
- Whitaker Cardiovascular Institute, Boston University School of Medicine, 715 Albany Street, W611, Boston, MA 02118, USA.
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Abstract
Obesity is linked to increased cancer risk. Pathological expansion of adipose tissue impacts adipocyte function and secretion of hormonal factors regulating tissue homeostasis and metabolism. Adiponectin is an adipocyte-secreted, circulating hormone with pleiotropic functions in lipid and glucose metabolism, and beneficial roles in cardiovascular functions and inflammation. In obesity, decreased Adiponectin plasma levels correlate with tumor development and progression. The association of Adiponectin with potential tumor-limiting functions has raised significant interest in exploring this adipokine as a target for cancer-diagnostic and therapeutic applications. Recent studies, however, also implicate Adiponectin in supporting malignancy. This review highlights the evidence that links Adiponectin signaling to either cancer-protective or cancer-supporting functions. In this context, we discuss Adiponectin interactions with its receptors and associated signaling pathways. Despite significant advances in understanding Adiponectin functions and signaling mechanisms, its role in cancer remains multifaceted and subject to controversy.
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Affiliation(s)
- Lionel Hebbard
- Storr Liver Unit, Westmead Millennium Institute and The University of Sydney, PO Box 412, Darcy Road, Westmead, NSW 2145, Australia.
| | - Barbara Ranscht
- Sanford-Burnham Medical Research Institute, NIH-designated Cancer Center, Tumor Microenvironment Program, 10901 N. Torrey Pines Road, La Jolla, CA 92037, USA.
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Mauro L, Pellegrino M, De Amicis F, Ricchio E, Giordano F, Rizza P, Catalano S, Bonofiglio D, Sisci D, Panno ML, Andò S. Evidences that estrogen receptor α interferes with adiponectin effects on breast cancer cell growth. Cell Cycle 2013; 13:553-64. [PMID: 24335340 DOI: 10.4161/cc.27455] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Adiponectin, the most abundant protein secreted by adipose tissue, exhibits insulin-sensitizing, anti-inflammatory, antiatherogenic, and antiproliferative properties. In addition, it appears to play an important role also in the development and progression of several obesity-related malignancies, including breast cancer. Here, we demonstrated that adiponectin induces a dichotomic effect on breast cancer growth. Indeed, it stimulates growth in ERα+ MCF-7 cells while inhibiting proliferation of ERα- MDA-MB-231 cells. Notably, only in MCF-7 cells adiponectin exposure exerts a rapid activation of MAPK phosphorylation, which is markedly reduced when knockdown of the ERα gene occurred. In addition, adiponectin induces rapid IGF-IR phosphorylation in MCF-7 cells, and the use of ERα siRNA prevents this effect. Moreover, MAPK activation induced by adiponectin was reversed by IGF-IR siRNA. Coimmunoprecipitation studies show the existence of a multiprotein complex involving AdipoR1, APPL1, ERα, IGF-IR, and c-Src that is responsible for MAPK signaling activation in ERα+ positive breast cancer cells. It is well known that in addition to the rapid effects through non-genomic mechanisms, ERα also mediates nuclear genomic actions. In this concern, we demonstrated that adiponectin is able to transactivate ERα in MCF-7 cells. We showed the classical features of ERα transactivation: nuclear localization, downregulation of mRNA and protein levels, and upregulation of estrogen-dependent genes. Thus, our study clarifies the molecular mechanism through which adiponectin modulates breast cancer cell growth, providing evidences on the cell-type dependency of adiponectin action in relationship to ERα status.
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Affiliation(s)
- Loredana Mauro
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Michele Pellegrino
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
| | - Emilia Ricchio
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Francesca Giordano
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Pietro Rizza
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Stefania Catalano
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
| | - Diego Sisci
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
| | - Maria Luisa Panno
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy
| | - Sebastiano Andò
- Department of Pharmacy, Health, and Nutritional Sciences; University of Calabria; Cosenza, Italy; Centro Sanitario; University of Calabria; Cosenza, Italy
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50
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Pilon M, Svensk E. PAQR-2 may be a regulator of membrane fluidity during cold adaptation. Worm 2013; 2:e27123. [PMID: 24744984 DOI: 10.4161/worm.27123] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 11/07/2013] [Indexed: 12/14/2022]
Abstract
PAQR-2 is a C. elegans homolog of the mammalian adiponectin receptors. We have recently shown that PAQR-2 is essential for the ability of C. elegans to grow at its lower temperature range, i.e., 15 °C, and that the likely role of PAQR-2 during cold adaptation is to regulate membrane fluidity by promoting fatty acid desaturation. Here we present a summary of this work, with an emphasis on placing our C. elegans findings in the context of mammalian biology.
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Affiliation(s)
- Marc Pilon
- Department of Chemistry and Molecular Biology; University of Gothenburg; Medicinaregatan 9C; Gothenburg, Sweden
| | - Emma Svensk
- Department of Chemistry and Molecular Biology; University of Gothenburg; Medicinaregatan 9C; Gothenburg, Sweden
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