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Zhao YQ, Ren YF, Li BB, Wei C, Yu B. The mysterious association between adiponectin and endometriosis. Front Pharmacol 2024; 15:1396616. [PMID: 38813109 PMCID: PMC11133721 DOI: 10.3389/fphar.2024.1396616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/29/2024] [Indexed: 05/31/2024] Open
Abstract
Adiponectin is a pleiotropic cytokine predominantly derived from adipose tissue. In addition to its role in regulating energy metabolism, adiponectin may also be related to estrogen-dependent diseases, and many studies have confirmed its involvement in mediating diverse biological processes, including apoptosis, autophagy, inflammation, angiogenesis, and fibrosis, all of which are related to the pathogenesis of endometriosis. Although many researchers have reported low levels of adiponectin in patients with endometriosis and suggested that it may serve as a protective factor against the development of the disease. Therefore, the purpose of this review was to provide an up-to-date summary of the roles of adiponectin and its downstream cytokines and signaling pathways in the aforementioned biological processes. Further systematic studies on the molecular and cellular mechanisms of action of adiponectin may provide novel insights into the pathophysiology of endometriosis as well as potential therapeutic targets.
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Affiliation(s)
| | | | - Bing-Bing Li
- College of Integrated Chinese and Western Medicine, Jining Medical University, Jining, Shandong Province, China
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2
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Lone AH, Tang J, Pignalosa A, Hsu HH, Abdul-Sater AA, Sweeney G. A novel blood-based bioassay to monitor adiponectin signaling. Int Immunopharmacol 2024; 132:111890. [PMID: 38547772 DOI: 10.1016/j.intimp.2024.111890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 03/07/2024] [Accepted: 03/14/2024] [Indexed: 05/01/2024]
Abstract
The diverse beneficial effects of adiponectin-receptor signaling, including its impact on the regulation of inflammatory processes in vivo, have resulted in development of adiponectin receptor agonists as a treatment for metabolic disorders. However, there are no established non-invasive bioassays for detection of adiponectin target engagement in humans or animal models. Here, we designed an assay using small amounts of blood to assess adiponectin action. Specifically, we tested effects of the small 10-amino acid peptide adiponectin receptor agonist, ALY688, in a sublethal LPS endotoxemia model in mice. LPS-induced pro-inflammatory cytokine levels in serum were significantly reduced in mice treated with ALY688, assessed via multiplex ELISA in flow cytometry. Furthermore, ALY688 alone significantly induced TGF-β release in serum 1 h after treatment and was elevated for up to 24 h. Additionally, using a flow-cytometry panel for detection of changes in circulating immune cell phenotypes, we observed a significant increase in absolute T cell counts in mice after ALY688 treatment. To assess changes in intracellular signaling effectors downstream of adiponectin, phospho-flow cytometry was conducted. There was a significant increase in phosphorylation of AMPK and p38-MAPK in mice after ALY688 treatment. We then used human donor immune cells (PBMCs) treated with ALY688 ex vivo and observed elevation of AMPK and p38-MAPK phosphorylation from baseline in response to ALY688. Together, these results indicate we can detect adiponectin action on immune cells in vivo by assessing adiponectin signaling pathway for AMPK and p38-MAPK, as well as pro-inflammatory cytokine levels. This new approach provides a blood-based bioassay for screening adiponectin action.
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Affiliation(s)
| | - Jialing Tang
- Department of Biology, York University, Toronto, ON, Canada
| | | | - Henry H Hsu
- Allysta Pharmaceuticals Inc., Bellevue, WA, USA
| | - Ali A Abdul-Sater
- School of Kinesiology and Health Science, York University, Toronto, ON, Canada.
| | - Gary Sweeney
- Department of Biology, York University, Toronto, ON, Canada.
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3
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Bradley D, Deng T, Shantaram D, Hsueh WA. Orchestration of the Adipose Tissue Immune Landscape by Adipocytes. Annu Rev Physiol 2024; 86:199-223. [PMID: 38345903 DOI: 10.1146/annurev-physiol-042222-024353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Obesity is epidemic and of great concern because of its comorbid and costly inflammatory-driven complications. Extensive investigations in mice have elucidated highly coordinated, well-balanced interactions between adipocytes and immune cells in adipose tissue that maintain normal systemic metabolism in the lean state, while in obesity, proinflammatory changes occur in nearly all adipose tissue immune cells. Many of these changes are instigated by adipocytes. However, less is known about obesity-induced adipose-tissue immune cell alterations in humans. Upon high-fat diet feeding, the adipocyte changes its well-known function as a metabolic cell to assume the role of an immune cell, orchestrating proinflammatory changes that escalate inflammation and progress during obesity. This transformation is particularly prominent in humans. In this review, we (a) highlight a leading and early role for adipocytes in promulgating inflammation, (b) discuss immune cell changes and the time course of these changes (comparing humans and mice when possible), and (c) note how reversing proinflammatory changes in most types of immune cells, including adipocytes, rescues adipose tissue from inflammation and obese mice from insulin resistance.
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Affiliation(s)
- David Bradley
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA;
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Pennsylvania State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA;
| | - Tuo Deng
- Second Xiangya Hospital, Central South University, Changsha, China
| | - Dharti Shantaram
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA;
| | - Willa A Hsueh
- Diabetes and Metabolism Research Center, Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA;
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4
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Thind MK, Uhlig HH, Glogauer M, Palaniyar N, Bourdon C, Gwela A, Lancioni CL, Berkley JA, Bandsma RHJ, Farooqui A. A metabolic perspective of the neutrophil life cycle: new avenues in immunometabolism. Front Immunol 2024; 14:1334205. [PMID: 38259490 PMCID: PMC10800387 DOI: 10.3389/fimmu.2023.1334205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024] Open
Abstract
Neutrophils are the most abundant innate immune cells. Multiple mechanisms allow them to engage a wide range of metabolic pathways for biosynthesis and bioenergetics for mediating biological processes such as development in the bone marrow and antimicrobial activity such as ROS production and NET formation, inflammation and tissue repair. We first discuss recent work on neutrophil development and functions and the metabolic processes to regulate granulopoiesis, neutrophil migration and trafficking as well as effector functions. We then discuss metabolic syndromes with impaired neutrophil functions that are influenced by genetic and environmental factors of nutrient availability and usage. Here, we particularly focus on the role of specific macronutrients, such as glucose, fatty acids, and protein, as well as micronutrients such as vitamin B3, in regulating neutrophil biology and how this regulation impacts host health. A special section of this review primarily discusses that the ways nutrient deficiencies could impact neutrophil biology and increase infection susceptibility. We emphasize biochemical approaches to explore neutrophil metabolism in relation to development and functions. Lastly, we discuss opportunities and challenges to neutrophil-centered therapeutic approaches in immune-driven diseases and highlight unanswered questions to guide future discoveries.
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Affiliation(s)
- Mehakpreet K Thind
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Holm H Uhlig
- Translational Gastroenterology Unit, Experimental Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
- Department of Dental Oncology and Maxillofacial Prosthetics, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Nades Palaniyar
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Celine Bourdon
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Agnes Gwela
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
| | - Christina L Lancioni
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - James A Berkley
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada
| | - Amber Farooqui
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Omega Laboratories Inc, Mississauga, ON, Canada
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5
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Pei X, Li H, Yu H, Wang W, Mao D. APN Expression in Serum and Corpus Luteum: Regulation of Luteal Steroidogenesis Is Possibly Dependent on the AdipoR2/AMPK Pathway in Goats. Cells 2023; 12:1393. [PMID: 37408227 DOI: 10.3390/cells12101393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/23/2023] [Accepted: 05/09/2023] [Indexed: 07/07/2023] Open
Abstract
Adiponectin (APN) is an essential adipokine for a variety of reproductive processes. To investigate the role of APN in goat corpora lutea (CLs), CLs and sera from different luteal phases were collected for analysis. The results showed that the APN structure and content had no significant divergence in different luteal phases both in CLs and sera; however, high molecular weight APN was dominant in serum, while low molecular weight APN was more present in CLs. The luteal expression of both AdipoR1/2 and T-cadherin (T-Ca) increased on D11 and 17. APN and its receptors (AdipoR1/2 and T-Ca) were mainly expressed in goat luteal steroidogenic cells. The steroidogenesis and APN structure in pregnant CLs had a similar model as in the mid-cycle CLs. To further explore the effects and mechanisms of APN in CLs, steroidogenic cells from pregnant CLs were isolated to detect the AMPK-mediated pathway by the activation of APN (AdipoRon) and knockdown of APN receptors. The results revealed that P-AMPK in goat luteal cells increased after incubation with APN (1 μg/mL) or AdipoRon (25 μM) for 1 h, and progesterone (P4) and steroidogenic proteins levels (STAR/CYP11A1/HSD3B) decreased after 24 h. APN did not affect the steroidogenic protein expression when cells were pretreated with Compound C or SiAMPK. APN increased P-AMPK and reduced the CYP11A1 expression and P4 levels when cells were pretreated with SiAdipoR1 or SiT-Ca, while APN failed to affect P-AMPK, the CYP11A1 expression or the P4 levels when pretreated with SiAdipoR2. Therefore, the different structural forms of APN in CLs and sera may possess distinct functions; APN might regulate luteal steroidogenesis through AdipoR2 which is most likely dependent on AMPK.
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Affiliation(s)
- Xiaomeng Pei
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Haolin Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hao Yu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Wei Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Dagan Mao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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Nehme R, Diab-Assaf M, Decombat C, Delort L, Caldefie-Chezet F. Targeting Adiponectin in Breast Cancer. Biomedicines 2022; 10:biomedicines10112958. [PMID: 36428526 PMCID: PMC9687473 DOI: 10.3390/biomedicines10112958] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
Obesity and breast cancer are two major health issues that could be categorized as sincere threats to human health. In the last few decades, the relationship between obesity and cancer has been well established and extensively investigated. There is strong evidence that overweight and obesity increase the risk of postmenopausal breast cancer, and adipokines are the central players in this relationship. Produced and secreted predominantly by white adipose tissue, adiponectin is a bioactive molecule that exhibits numerous protective effects and is considered the guardian angel of adipokine. In the obesity-cancer relationship, more and more evidence shows that adiponectin may prevent and protect individuals from developing breast cancer. Recently, several updates have been published on the implication of adiponectin in regulating tumor development, progression, and metastases. In this review, we provide an updated overview of the metabolic signaling linking adiponectin and breast cancer in all its stages. On the other hand, we critically summarize all the available promising candidates that may reactivate these pathways mainly by targeting adiponectin receptors. These molecules could be synthetic small molecules or plant-based proteins. Interestingly, the advances in genomics have made it possible to create peptide sequences that could specifically replace human adiponectin, activate its receptor, and mimic its function. Thus, the obvious anti-cancer activity of adiponectin on breast cancer should be better exploited, and adiponectin must be regarded as a serious biomarker that should be targeted in order to confront this threatening disease.
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Affiliation(s)
- Rawan Nehme
- Université Clermont-Auvergne, INRAE, UNH Unité de Nutrition Humaine, CRNH-Auvergne, 63000 Clermont-Ferrand, France
- Correspondence:
| | - Mona Diab-Assaf
- Equipe Tumorigénèse Moléculaire et Pharmacologie Anticancéreuse, Faculté des Sciences II, Université Libanaise Fanar, Beyrouth 1500, Lebanon
| | - Caroline Decombat
- Université Clermont-Auvergne, INRAE, UNH Unité de Nutrition Humaine, CRNH-Auvergne, 63000 Clermont-Ferrand, France
| | - Laetitia Delort
- Université Clermont-Auvergne, INRAE, UNH Unité de Nutrition Humaine, CRNH-Auvergne, 63000 Clermont-Ferrand, France
| | - Florence Caldefie-Chezet
- Université Clermont-Auvergne, INRAE, UNH Unité de Nutrition Humaine, CRNH-Auvergne, 63000 Clermont-Ferrand, France
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7
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Whittall-Garcia L, Goliad K, Kim M, Bonilla D, Gladman D, Urowitz M, Fortin PR, Atenafu EG, Touma Z, Wither J. Identification and Validation of a Urinary Biomarker Panel to Accurately Diagnose and Predict Response to Therapy in Lupus Nephritis. Front Immunol 2022; 13:889931. [PMID: 35711439 PMCID: PMC9196040 DOI: 10.3389/fimmu.2022.889931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/02/2022] [Indexed: 11/15/2022] Open
Abstract
Background We have previously shown that 15 urinary biomarkers (of 129 tested by Luminex), discriminate between active Lupus Nephritis (ALN) and non-LN patients. The aim of this study was to evaluate the ability of these 15 previously-identified urinary biomarkers to predict treatment responses to conventional therapy, and for the most predictive of these biomarkers to validate their utility to identify ALN patients in an independent prospectively-acquired lupus cohort. Methods Our study had a 3-stage approach. In stage 1, we used Luminex to examine whether our previously identified urinary biomarkers at the time of the renal flare ( ± 3 months) or 12 ± 3 months after treatment of biopsy-proven ALN could predict treatment responses. In stage 2, a larger prospectively-acquired cross-sectional cohort was used to further validate the utility of the most predictive urinary biomarkers (identified in stage 1) to detect ALN patients. In this 2nd stage, cut-offs with the best operating characteristics to detect ALN patients were produced for each biomarker and different combinations and/or numbers of elevated biomarkers needed to accurately identify ALN patients were analyzed. In stage 3, we aimed to further corroborate the sensitivity of the cut-offs created in stage 2 to detect ALN patients in a biopsy-proven ALN cohort who had a urine sample collection within 3 months of their biopsy. Results Twenty-one patients were included in stage 1. Twelve (57.1%), 4 (19.1%), and 5 (23.8%) patients had a complete (CR), partial (PR) and no (NR) remission at 24 ± 3 months, respectively. The percentage decrease following 12 ± 3 months of treatment for Adiponectin, MCP-1, sVCAM-1, PF4, IL-15 and vWF was significantly higher in patients with CR in comparison to those with PR/NR. In stage 2, a total of 247 SLE patients were included, of which 24 (9.7%) had ALN, 79 (31.9%) had LN in remission (RLN) and 144 (58.3%) were non-LN (NLN) patients. Based on the combinations of biomarkers with the best operating characteristics we propose “rule out” and “rule in” ALN criteria. In stage 3, 53 biopsy-proven ALN patients were included, 35 with proliferative LN and 18 with non-proliferative ALN, demonstrating that our “rule in ALN” criteria operate better in detecting active proliferative than non-proliferative classes. Conclusions Our results provide further evidence to support the role of Adiponectin, MCP-1, sVCAM-1 and PF4 in the detection of proliferative ALN cases. We further show the clinical utility of measuring multiple rather than a single biomarker and we propose novel “rule in” and “rule out” criteria for the detection of proliferative ALN with excellent operating characteristics.
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Affiliation(s)
- Laura Whittall-Garcia
- Division of Rheumatology, Department of Medicine, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- University of Toronto Lupus Clinic, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| | - Kirubel Goliad
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- Department of Immunology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Michael Kim
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Dennisse Bonilla
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- University of Toronto Lupus Clinic, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| | - Dafna Gladman
- Division of Rheumatology, Department of Medicine, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- University of Toronto Lupus Clinic, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| | - Murray Urowitz
- Division of Rheumatology, Department of Medicine, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- University of Toronto Lupus Clinic, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| | - Paul R. Fortin
- Division of Rheumatology, Department of Medicine, Centre de recherche du CHU de Québec–Université Laval, Quebec City, QC, Canada
| | - Eshetu G. Atenafu
- Department of Biostatistics, University Health Network, Toronto, ON, Canada
| | - Zahi Touma
- Division of Rheumatology, Department of Medicine, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- University of Toronto Lupus Clinic, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| | - Joan Wither
- Division of Rheumatology, Department of Medicine, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON, Canada
- University of Toronto Lupus Clinic, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
- Department of Immunology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- *Correspondence: Joan Wither,
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8
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Xu D, Zhou X, Chen J, Li N, Ruan S, Zuo A, Lei S, Li L, Guo Y. C1q/tumour necrosis factor-related protein-9 aggravates lipopolysaccharide-induced inflammation via promoting NLRP3 inflammasome activation. Int Immunopharmacol 2022; 104:108513. [PMID: 35008006 DOI: 10.1016/j.intimp.2021.108513] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/21/2021] [Accepted: 12/30/2021] [Indexed: 02/07/2023]
Abstract
The NLRP3 inflammasome plays a vital role in inflammation by increasing the maturation of interleukin-1β (IL-1β) and promoting pyroptosis. Given that C1q/tumour necrosis factor-related protein-9 (CTRP9) has been shown to be involved in diverse inflammatory diseases, we sought to assess the underlying impact of CTRP9 on NLRP3 inflammasome activation. In vitro, macrophages isolated from murine peritonea were stimulated with exogenous CTRP9, followed by lipopolysaccharide (LPS) and adenosine 5'-triphosphate (ATP). We demonstrated that CTRP9 markedly augmented the activation of the NLRP3 inflammasome, as shown by increased mature IL-1β secretion, triggering ASC speck formation and promoting pyroptosis. Mechanistically, CTRP9 increased the levels of NADPH oxidase 2 (NOX2)-derived reactive oxygen species (ROS). Suppressing ROS with N-acetylcysteine (NAC) or interfering with NOX2 by small interfering RNA weakened the promoting effect of CTRP9 on the NLRP3 inflammasome. Furthermore, NLRP3 inflammasome activation, pyroptosis and secretion of mature IL-1β were significantly decreased in macrophages from CTRP9-KO mice compared to those from WT mice with the same treatment. In vivo, we established a sepsis model by intraperitoneal injection of LPS into WT and CTRP9-KO mice. CTRP9 knockout improved the survival rates of the septic mice and attenuated NLRP3 inflammasome-mediated inflammation. In conclusion, our study indicates that CTRP9 aggravates LPS-induced inflammation by promoting NLRP3 inflammasome activation via the NOX2/ROS pathway. CTRP9 could be a promising target for NLRP3 inflammasome-driven inflammatory diseases.
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Affiliation(s)
- Dan Xu
- Department of General Practice, Qilu Hospital, Cheeloo college of medicine, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Xin Zhou
- Department of Critical Care Medicine, The First Affiliated Hospital of Shandong First Medical University&Shandong Provincial Qianfoshan Hospital, Shandong medicine and Health Key Laboratory of Emergency Medicine, Shandong Institute of Anesthesia and Respiratory Critical Medicine
| | - Jiying Chen
- Department of General Practice, Qilu Hospital, Cheeloo college of medicine, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Na Li
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Shiyan Ruan
- Department of General Practice, Qilu Hospital, Cheeloo college of medicine, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Anju Zuo
- Department of General Practice, Qilu Hospital, Cheeloo college of medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Shengyun Lei
- Department of General Practice, Qilu Hospital, Cheeloo college of medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Linxi Li
- Department of General Practice, Qilu Hospital, Cheeloo college of medicine, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Yuan Guo
- Department of General Practice, Qilu Hospital, Cheeloo college of medicine, Shandong University, Jinan, Shandong, 250012, China.
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9
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Nassif RM, Chalhoub E, Chedid P, Hurtado-Nedelec M, Raya E, Dang PMC, Marie JC, El-Benna J. Metformin Inhibits ROS Production by Human M2 Macrophages via the Activation of AMPK. Biomedicines 2022; 10:biomedicines10020319. [PMID: 35203528 PMCID: PMC8869356 DOI: 10.3390/biomedicines10020319] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/11/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
Metformin (1,1-dimethylbiguanide hydrochloride) is the most commonly used drug to treat type II diabetic patients. It is believed that this drug has several other beneficial effects, such as anti-inflammatory and anticancer effects. Here, we wanted to evaluate the effect of metformin on the production of reactive oxygen species (ROS) by human macrophages. Macrophages are generated in vivo from circulating monocytes depending on the local tissue environment. In vitro proinflammatory macrophages (M1) and anti-inflammatory macrophages (M2) can be generated by culturing monocytes in the presence of different cytokines, such as GM-CSF or M-CSF, respectively. We show that metformin selectively inhibited human monocyte differentiation into proinflammatory macrophages (M1) without inhibiting their differentiation into anti-inflammatory macrophages (M2). Moreover, we demonstrate that, in response to LPS, M2 macrophages produced ROS, which could be very harmful for nearby tissues, and metformin inhibited this process. Interestingly, metformin with LPS induced activation of the adenosine-monophosphate-activated protein kinase (AMPK) and pharmacological activation of AMPK by AICAR, a known AMPK activator, decreased ROS production, whereas the deletion of AMPK in mice dramatically enhanced ROS production in different types of immune cells. These results suggest that metformin exhibits anti-inflammatory effects by inhibiting the differentiation of human monocytes into M1 macrophages and by limiting ROS production by macrophages via the activation of AMPK.
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Affiliation(s)
- Rana M. Nassif
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Elias Chalhoub
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Pia Chedid
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Margarita Hurtado-Nedelec
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Elia Raya
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Pham My-Chan Dang
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Jean-Claude Marie
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Jamel El-Benna
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
- Correspondence: ; Tel.: +33-1-57-27-77-23; Fax: +33-1-57-27-74-61
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10
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Oh J, Lee Y, Oh SW, Li T, Shin J, Park SH, Lee J. The Role of Adiponectin in the Skin. Biomol Ther (Seoul) 2021; 30:221-231. [PMID: 34615771 PMCID: PMC9047493 DOI: 10.4062/biomolther.2021.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/29/2021] [Accepted: 08/20/2021] [Indexed: 11/29/2022] Open
Abstract
Adiponectin (Ad), a 30 kDa molecule, is an anti-diabetic adipokine; although derived from adipose tissue, it performs numerous activities in various other tissues. It binds to its own receptors, namely adiponectin receptor 1(AdipoR1), adiponectin receptor 2 (AdipoR2), and T-cadherin (CDH13). Ad plays several roles, especially as a regulator. It modulates lipid and glucose metabolism and promotes insulin sensitivity. This demonstrates that Ad has a robust correlation with fat metabolism. Furthermore, although Ad is not in direct contact with other tissues, including the skin, it can be delivered to them by diffusion or secretion via the endocrine system. Recently it has been reported that Ad can impact skin cell biology, underscoring its potential as a therapeutic biomarker of skin diseases. In the present review, we have discussed the association between skin cell biology and Ad. To elaborate further, we described the involvement of Ad in the biology of various types of cells in the skin, such as keratinocytes, fibroblasts, melanocytes, and immune cells. Additionally, we postulated that Ad could be employed as a therapeutic target to maintain skin homeostasis.
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Affiliation(s)
- Jieun Oh
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419
| | - Yeongyeong Lee
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419
| | - Sae-Woong Oh
- Molecular Dermatology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419
| | - TianTian Li
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419
| | - Jiwon Shin
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419
| | - See-Hyoung Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong 30016, Republic of Korea
| | - Jongsung Lee
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419.,Molecular Dermatology Laboratory, Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419
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11
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Blaszczak AM, Jalilvand A, Hsueh WA. Adipocytes, Innate Immunity and Obesity: A Mini-Review. Front Immunol 2021; 12:650768. [PMID: 34248937 PMCID: PMC8264354 DOI: 10.3389/fimmu.2021.650768] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 04/28/2021] [Indexed: 12/12/2022] Open
Abstract
The role of adipose tissue (AT) inflammation in obesity and its multiple related-complications is a rapidly expanding area of scientific interest. Within the last 30 years, the role of the adipocyte as an endocrine and immunologic cell has been progressively established. Like the macrophage, the adipocyte is capable of linking the innate and adaptive immune system through the secretion of adipokines and cytokines; exosome release of lipids, hormones, and microRNAs; and contact interaction with other immune cells. Key innate immune cells in AT include adipocytes, macrophages, neutrophils, and innate lymphoid cells type 2 (ILC2s). The role of the innate immune system in promoting adipose tissue inflammation in obesity will be highlighted in this review. T cells and B cells also play important roles in contributing to AT inflammation and are discussed in this series in the chapter on adaptive immunity.
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Affiliation(s)
- Alecia M Blaszczak
- Hsueh Laboratory, The Ohio State University Wexner Medical Center, Diabetes and Metabolism Research Center, Columbus, OH, United States
| | - Anahita Jalilvand
- Hsueh Laboratory, The Ohio State University Wexner Medical Center, Diabetes and Metabolism Research Center, Columbus, OH, United States
| | - Willa A Hsueh
- Hsueh Laboratory, The Ohio State University Wexner Medical Center, Diabetes and Metabolism Research Center, Columbus, OH, United States
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12
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McDowell SAC, Luo RBE, Arabzadeh A, Doré S, Bennett NC, Breton V, Karimi E, Rezanejad M, Yang RR, Lach KD, Issac MSM, Samborska B, Perus LJM, Moldoveanu D, Wei Y, Fiset B, Rayes RF, Watson IR, Kazak L, Guiot MC, Fiset PO, Spicer JD, Dannenberg AJ, Walsh LA, Quail DF. Neutrophil oxidative stress mediates obesity-associated vascular dysfunction and metastatic transmigration. ACTA ACUST UNITED AC 2021; 2:545-562. [DOI: 10.1038/s43018-021-00194-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 03/10/2021] [Indexed: 12/22/2022]
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13
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Adiponectin Deregulation in Systemic Autoimmune Rheumatic Diseases. Int J Mol Sci 2021; 22:ijms22084095. [PMID: 33920997 PMCID: PMC8071452 DOI: 10.3390/ijms22084095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/08/2021] [Accepted: 04/13/2021] [Indexed: 02/06/2023] Open
Abstract
Deregulation of adiponectin is found in systemic autoimmune rheumatic diseases (SARDs). Its expression is downregulated by various inflammatory mediators, but paradoxically, elevated serum levels are present in SARDs with high inflammatory components, such as rheumatoid arthritis and systemic lupus erythematosus. Circulating adiponectin is positively associated with radiographic progression in rheumatoid arthritis as well as with cardiovascular risks and lupus nephritis in systemic lupus erythematosus. However, in SARDs with less prominent inflammation, such as systemic sclerosis, adiponectin levels are low and correlate negatively with disease activity. Regulators of adiponectin gene expression (PPAR-γ, Id3, ATF3, and SIRT1) and inflammatory cytokines (interleukin 6 and tumor necrosis factor α) are differentially expressed in SARDs and could therefore influence total adiponectin levels. In addition, anti-inflammatory therapy could also have an impact, as tocilizumab treatment is associated with increased serum adiponectin. However, anti-tumor necrosis factor α treatment does not seem to affect its levels. Our review provides an overview of studies on adiponectin levels in the bloodstream and other biological samples from SARD patients and presents some possible explanations why adiponectin is deregulated in the context of therapy and gene regulation.
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14
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Role of Adiponectin in the Pathogenesis of Rheumatoid Arthritis. Int J Mol Sci 2020; 21:ijms21218265. [PMID: 33158216 PMCID: PMC7662687 DOI: 10.3390/ijms21218265] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 02/07/2023] Open
Abstract
Rheumatoid arthritis (RA) is a systemic chronic inflammatory autoimmune joint disease, characterized by progressive articular damage and joint dysfunction. One of the symptoms of this disease is persistent inflammatory infiltration of the synovial membrane, the principle site of inflammation in RA. In the affected conditions, the cells of the synovial membrane, fibroblast-like synoviocytes and macrophage-like synovial cells, produce enzymes degrading cartilage and underlining bone tissue, as well as cytokines increasing the infiltration of immune cells. In patients with RA, higher levels of adiponectin are measured in the serum and synovial fluid. Adiponectin, a secretory product that is mainly white adipose tissue, is a multifunctional protein with dual anti-inflammatory and pro-inflammatory properties. Several studies underline the fact that adiponectin can play an important pro-inflammatory role in the pathophysiology of RA via stimulating the secretion of inflammatory mediators. This narrative review is devoted to the presentation of recent knowledge on the role played by one of the adipokines produced by adipose tissue—adiponectin—in the pathogenesis of rheumatoid arthritis.
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15
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Choi HM, Doss HM, Kim KS. Multifaceted Physiological Roles of Adiponectin in Inflammation and Diseases. Int J Mol Sci 2020; 21:ijms21041219. [PMID: 32059381 PMCID: PMC7072842 DOI: 10.3390/ijms21041219] [Citation(s) in RCA: 211] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 12/28/2022] Open
Abstract
Adiponectin is the richest adipokine in human plasma, and it is mainly secreted from white adipose tissue. Adiponectin circulates in blood as high-molecular, middle-molecular, and low-molecular weight isoforms. Numerous studies have demonstrated its insulin-sensitizing, anti-atherogenic, and anti-inflammatory effects. Additionally, decreased serum levels of adiponectin is associated with chronic inflammation of metabolic disorders including Type 2 diabetes, obesity, and atherosclerosis. However, recent studies showed that adiponectin could have pro-inflammatory roles in patients with autoimmune diseases. In particular, its high serum level was positively associated with inflammation severity and pathological progression in rheumatoid arthritis, chronic kidney disease, and inflammatory bowel disease. Thus, adiponectin seems to have both pro-inflammatory and anti-inflammatory effects. This indirectly indicates that adiponectin has different physiological roles according to an isoform and effector tissue. Knowledge on the specific functions of isoforms would help develop potential anti-inflammatory therapeutics to target specific adiponectin isoforms against metabolic disorders and autoimmune diseases. This review summarizes the current roles of adiponectin in metabolic disorders and autoimmune diseases.
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Affiliation(s)
- Hyung Muk Choi
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Seoul 02447, Korea; (H.M.C.); (H.M.D.)
| | - Hari Madhuri Doss
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Seoul 02447, Korea; (H.M.C.); (H.M.D.)
- East-West Bone & Joint Disease Research Institute, Kyung Hee University Hospital at Gangdong, Gandong-gu, Seoul 02447, Korea
| | - Kyoung Soo Kim
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Seoul 02447, Korea; (H.M.C.); (H.M.D.)
- East-West Bone & Joint Disease Research Institute, Kyung Hee University Hospital at Gangdong, Gandong-gu, Seoul 02447, Korea
- Correspondence: ; Tel.: +82-2-961-9619
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16
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Saxton SN, Clark BJ, Withers SB, Eringa EC, Heagerty AM. Mechanistic Links Between Obesity, Diabetes, and Blood Pressure: Role of Perivascular Adipose Tissue. Physiol Rev 2019; 99:1701-1763. [PMID: 31339053 DOI: 10.1152/physrev.00034.2018] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Obesity is increasingly prevalent and is associated with substantial cardiovascular risk. Adipose tissue distribution and morphology play a key role in determining the degree of adverse effects, and a key factor in the disease process appears to be the inflammatory cell population in adipose tissue. Healthy adipose tissue secretes a number of vasoactive adipokines and anti-inflammatory cytokines, and changes to this secretory profile will contribute to pathogenesis in obesity. In this review, we discuss the links between adipokine dysregulation and the development of hypertension and diabetes and explore the potential for manipulating adipose tissue morphology and its immune cell population to improve cardiovascular health in obesity.
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Affiliation(s)
- Sophie N Saxton
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Ben J Clark
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Sarah B Withers
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Etto C Eringa
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Anthony M Heagerty
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
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17
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Casals C, García-Fojeda B, Minutti CM. Soluble defense collagens: Sweeping up immune threats. Mol Immunol 2019; 112:291-304. [DOI: 10.1016/j.molimm.2019.06.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 06/12/2019] [Accepted: 06/13/2019] [Indexed: 12/14/2022]
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18
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Liu H, Lu XJ, Chen J. Full-length and a smaller globular fragment of adiponectin have opposite roles in regulating monocyte/macrophage functions in ayu, Plecoglossus altivelis. FISH & SHELLFISH IMMUNOLOGY 2018; 82:319-329. [PMID: 30130657 DOI: 10.1016/j.fsi.2018.08.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 08/17/2018] [Accepted: 08/18/2018] [Indexed: 06/08/2023]
Abstract
Adiponectin (ADP), a regulator of the innate immune system, plays a role in the progression of inflammation and metabolic disorders in mammals. However, the role of ADP in fish is poorly understood. Here, we cloned the cDNA sequence of a ADP homolog (PaADP) gene from ayu. Multiple sequence alignment revealed that PaADP presented typical characteristics of ADPs. Phylogenetic tree analysis showed that PaADP was most closely related to that of rainbow trout. In healthy ayu, the transcripts of PaADP were detected in most of the tested tissues and cells, with the highest level in the adipose tissue. Upon V. anguillarum infection, the mRNA expression of PaADP was significantly up-regulated in the tissues and cells except adipose tissue. Subsequently, the full-length mature PaADP (fPaADP) and the globular domain fragment (gPaADP) were prokaryotically expressed in bacteria and purified, and anti-PaADP antibodies were produced. Western blot analysis revealed that three fragments including fPaADP and gPaADP were existed in ayu serum. The recombinant fPaADP (rfPaADP) had an anti-inflammatory effect on ayu MO/MФ by upregulating anti-inflammatory cytokine expressions, downregulating pro-inflammatory cytokine expressions, inhibiting the phagocytosis and subsequent bacterial killing. In contrast, the recombinant gPaADP (rgPaADP) presented a pro-inflammatory effect on ayu MO/MФ by upregulating pro-inflammatory cytokine expression, downregulating anti-inflammatory cytokine expressions, enhancing the phagocytosis and subsequent bacterial killing. These results suggested that fPaADP and gPaADP have opposite roles in the regulation of MO/MФ functions in ayu.
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Affiliation(s)
- He Liu
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Xin-Jiang Lu
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Jiong Chen
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo 315211, China.
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19
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Song J, Choi SM, Whitcomb DJ, Kim BC. Adiponectin controls the apoptosis and the expression of tight junction proteins in brain endothelial cells through AdipoR1 under beta amyloid toxicity. Cell Death Dis 2017; 8:e3102. [PMID: 29022894 PMCID: PMC5682657 DOI: 10.1038/cddis.2017.491] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 06/20/2017] [Accepted: 07/11/2017] [Indexed: 12/12/2022]
Abstract
Alzheimer’s disease (AD) is the most common neurodegenerative disease, characterized by excessive beta amyloid (Aβ) deposition in brain, leading to blood–brain barrier (BBB) disruption. The mechanisms of BBB disruption in AD are still unclear, despite considerable research. The adipokine adiponectin is known to regulate various metabolic functions and reduce inflammation. Though adiponectin receptors have been reported in the brain, its role in the central nervous system has not been fully characterized. In the present study, we investigate whether adiponectin contributes to the tight junction integrity and cell death of brain endothelial cells under Aβ-induced toxicity conditions. We measured the expression of adiponectin receptors (AdipoR1 and AdipoR2) and the alteration of tight junction proteins in in vivo 5xFAD mouse brain. Moreover, we examined the production of reactive oxygen species (ROS) and the loss of tight junction proteins such as Claudin 5, ZO-1, and inflammatory signaling in in vitro brain endothelial cells (bEnd.3 cells) under Aβ toxicity. Our results showed that Acrp30 (a globular form of adiponectin) reduces the expression of proinflammatory cytokines and the expression of RAGE as Aβ transporters into brain. Moreover, we found that Acrp 30 attenuated the apoptosis and the tight junction disruption through AdipoR1-mediated NF-κB pathway in Aβ-exposed bEnd.3 cells. Thus, we suggest that adiponectin is an attractive therapeutic target for treating BBB breakdown in AD brain.
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Affiliation(s)
- Juhyun Song
- Department of Biomedical Sciences, Center for Creative Biomedical Scientists at Chonnam National University, Gwangju 61469, South Korea.,Department of Anatomy, Chonnam National University Medical School, Gwangju 61469, South Korea
| | - Seong-Min Choi
- Department of Neurology, Chonnam National University Medical School, Gwangju 61469, South Korea
| | - Daniel J Whitcomb
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, School of Clinical Sciences, Faculty of Healthy Sciences, University of Bristol, Whitson Street, Bristol BS1 3NY, UK
| | - Byeong C Kim
- Department of Neurology, Chonnam National University Medical School, Gwangju 61469, South Korea
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20
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Yang J, Zhang X, Ma Y, Wu M, Hu X, Han R, Yuan Y, Wang M, Chen M, Jiang S, Tong J, Xu S, Xu J, Shuai Z, Zou Y, Pan F. Serum levels of leptin, adiponectin and resistin in patients with ankylosing spondylitis: A systematic review and meta-analysis. Int Immunopharmacol 2017; 52:310-317. [PMID: 28985620 DOI: 10.1016/j.intimp.2017.09.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/25/2017] [Accepted: 09/28/2017] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Various studies have researched the serum levels of leptin, adiponectin and resistin in patients with ankylosing spondylitis (AS), but the results were inconclusive. The purpose of this study was to systematically evaluate the correlations between serum levels of these adipokines and AS. METHODS Electronic databases were retrieved to search relevant publications. Pooled standard mean difference (SMD) with 95% confidence interval (CI) was calculated by the random-effect model. Cochrane Q test and I2 statistic were used to test heterogeneity. Subgroup analysis and meta-regression were applied to assess possible sources of heterogeneity. RESULTS A total of sixteen articles were included. Meta-analysis results indicated no statistical differences between AS patients and normal controls in serum leptin and adiponectin levels (leptin, SMD=0.829, 95% CI=-0.116 to 1.774, p=0.085; adiponectin, SMD=0.460, 95% CI=-0.004 to 0.924, p=0.052). However, AS patients had higher serum resistin levels than controls (SMD=1.413, 95% CI=0.294 to 2.531, p=0.013). Subgroup analyses suggested that Asian and African AS patients as well as patients aged <40years had higher serum leptin and resistin levels when compared to controls. Serum adiponectin levels were higher in AS patients compared to controls in subgroup of age ≥40, and serum resistin levels in subgroup of BMI ≥25. Measurement method was a source of heterogeneity for resistin. Publication bias was not observed and the robustness of study results was confirmed by sensitivity analysis. CONCLUSION Serum resistin, but not leptin or adiponectin levels may be closely associated with the development of AS.
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Affiliation(s)
- Jiajia Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xu Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yubo Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Meng Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xingxing Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Renfang Han
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yaping Yuan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Mengmeng Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Mengya Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Shanqun Jiang
- School of Life Sciences, Anhui University, Hefei, China, 111 Jiulong Road, Hefei 230601, China
| | - Jingjing Tong
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Shengqian Xu
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Jianhua Xu
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Zongwen Shuai
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Yanfeng Zou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China.
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21
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Mei H, Yao P, Wang S, Li N, Zhu T, Chen X, Yang M, Zhuo S, Chen S, Wang JM, Wang H, Xie D, Wu Y, Le Y. Chronic Low-Dose Cadmium Exposure Impairs Cutaneous Wound Healing With Defective Early Inflammatory Responses After Skin Injury. Toxicol Sci 2017; 159:327-338. [PMID: 28666365 PMCID: PMC6256962 DOI: 10.1093/toxsci/kfx137] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Impairment of the immune system is a developing concern in evaluating the toxicity of cadmium (Cd). In the present study, we investigated if Cd could impair cutaneous wound healing through interfering with inflammation after injury. We found that exposure of mice to CdCl2 through drinking water at doses of 10, 30, and 50 mg/l for 8 weeks significantly impaired cutaneous wound healing. Chronic 30 mg/l CdCl2 treatment elevated murine blood Cd level comparable to that of low dose Cd-exposed humans, had no effect on blood total and differential leukocyte counts, but reduced neutrophil infiltration, chemokines (CXCL1 and CXCL2), and proinflammatory cytokines (TNFα, IL-1β, and IL-6) expression in wounded tissue at early stage after injury. Wounded tissue homogenates from CdCl2-treated mice had lower chemotactic activity for neutrophils than those from untreated mice. Mechanistic studies showed that chronic Cd treatment suppressed ERK1/2 and NF-κB p65 phosphorylation in wounded tissue at early stage after injury. Compared with neutrophils isolated from untreated mice, neutrophils from CdCl2 treated mice and normal neutrophils treated with CdCl2 invitro both had lower chemotactic response, calcium mobilization and ERK1/2 phosphorylation upon chemoattractant stimulation. Collectively, our study indicate that chronic low-dose Cd exposure impaired cutaneous wound healing by reducing neutrophil infiltration through inhibiting chemokine expression and neutrophil chemotactic response, and suppressing proinflammatory cytokine expression. Cd may suppress chemokine and proinflammatory expression through inactivating ERK1/2 and NF-κB, and inhibit neutrophil chemotaxis by attenuating calcium mobilization and ERK1/2 phosphorylation in response to chemoattractants.
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Affiliation(s)
- Hong Mei
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Pengle Yao
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Shanshan Wang
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Na Li
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Tengfei Zhu
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Xiaofang Chen
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Mengmei Yang
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Shu Zhuo
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Shiting Chen
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Ji Ming Wang
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702
| | - Hui Wang
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Dong Xie
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Yongning Wu
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Yingying Le
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
- Institute for Hand Surgery, Ruihua Affiliated Hospital of Soochow University, Suzhou 215104, China
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NOX5 and p22phox are 2 novel regulators of human monocytic differentiation into dendritic cells. Blood 2017; 130:1734-1745. [PMID: 28830888 DOI: 10.1182/blood-2016-10-746347] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 08/03/2017] [Indexed: 01/25/2023] Open
Abstract
Dendritic cells (DCs) are a heterogeneous population of professional antigen-presenting cells and are key cells of the immune system, acquiring different phenotypes in accordance with their localization during the immune response. A subset of inflammatory DCs is derived from circulating monocytes (Mo) and has a key role in inflammation and infection. The pathways controlling Mo-DC differentiation are not fully understood. Our objective was to investigate the possible role of nicotinamide adenine dinucleotide phosphate reduced form oxidases (NOXs) in Mo-DC differentiation. In this study, we revealed that Mo-DC differentiation was inhibited by NOX inhibitors and reactive oxygen species scavengers. We show that the Mo-DC differentiation was dependent on p22phox, and not on gp91phox/NOX2, as shown by the reduced Mo-DC differentiation observed in chronic granulomatous disease patients lacking p22phox. Moreover, we revealed that NOX5 expression was strongly increased during Mo-DC differentiation, but not during Mo-macrophage differentiation. NOX5 was expressed in circulating myeloid DC, and at a lower level in plasmacytoid DC. Interestingly, NOX5 was localized at the outer membrane of the mitochondria and interacted with p22phox in Mo-DC. Selective inhibitors and small interfering RNAs for NOX5 indicated that NOX5 controlled Mo-DC differentiation by regulating the JAK/STAT/MAPK and NFκB pathways. These data demonstrate that the NOX5-p22phox complex drives Mo-DC differentiation, and thus could be critical for immunity and inflammation.
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El-Benna J, Hurtado-Nedelec M, Marzaioli V, Marie JC, Gougerot-Pocidalo MA, Dang PMC. Priming of the neutrophil respiratory burst: role in host defense and inflammation. Immunol Rev 2017; 273:180-93. [PMID: 27558335 DOI: 10.1111/imr.12447] [Citation(s) in RCA: 286] [Impact Index Per Article: 40.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Neutrophils are the major circulating white blood cells in humans. They play an essential role in host defense against pathogens. In healthy individuals, circulating neutrophils are in a dormant state with very low efficiency of capture and arrest on the quiescent endothelium. Upon infection and subsequent release of pro-inflammatory mediators, the vascular endothelium signals to circulating neutrophils to roll, adhere, and cross the endothelial barrier. Neutrophils migrate toward the infection site along a gradient of chemo-attractants, then recognize and engulf the pathogen. To kill this pathogen entrapped inside the vacuole, neutrophils produce and release high quantities of antibacterial peptides, proteases, and reactive oxygen species (ROS). The robust ROS production is also called 'the respiratory burst', and the NADPH oxidase or NOX2 is the enzyme responsible for the production of superoxide anion, leading to other ROS. In vitro, several soluble and particulate agonists induce neutrophil ROS production. This process can be enhanced by prior neutrophil treatment with 'priming' agents, which alone do not induce a respiratory burst. In this review, we will describe the priming process and discuss the beneficial role of controlled neutrophil priming in host defense and the detrimental effect of excessive neutrophil priming in inflammatory diseases.
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Affiliation(s)
- Jamel El-Benna
- INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation, Paris, France.,Sorbonne Paris Cité, Laboratoire d'Excellence Inflamex, DHU FIRE, Faculté de Médecine, Site Xavier Bichat, Université Paris Diderot, Paris, France
| | - Margarita Hurtado-Nedelec
- INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation, Paris, France.,Sorbonne Paris Cité, Laboratoire d'Excellence Inflamex, DHU FIRE, Faculté de Médecine, Site Xavier Bichat, Université Paris Diderot, Paris, France.,Département d'Immunologie et d'Hématologie, UF Dysfonctionnements Immunitaires, HUPNVS, Hôpital Bichat, Paris, France
| | - Viviana Marzaioli
- INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation, Paris, France.,Sorbonne Paris Cité, Laboratoire d'Excellence Inflamex, DHU FIRE, Faculté de Médecine, Site Xavier Bichat, Université Paris Diderot, Paris, France
| | - Jean-Claude Marie
- INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation, Paris, France.,Sorbonne Paris Cité, Laboratoire d'Excellence Inflamex, DHU FIRE, Faculté de Médecine, Site Xavier Bichat, Université Paris Diderot, Paris, France.,Département d'Immunologie et d'Hématologie, UF Dysfonctionnements Immunitaires, HUPNVS, Hôpital Bichat, Paris, France
| | - Marie-Anne Gougerot-Pocidalo
- INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation, Paris, France.,Sorbonne Paris Cité, Laboratoire d'Excellence Inflamex, DHU FIRE, Faculté de Médecine, Site Xavier Bichat, Université Paris Diderot, Paris, France.,Département d'Immunologie et d'Hématologie, UF Dysfonctionnements Immunitaires, HUPNVS, Hôpital Bichat, Paris, France
| | - Pham My-Chan Dang
- INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation, Paris, France.,Sorbonne Paris Cité, Laboratoire d'Excellence Inflamex, DHU FIRE, Faculté de Médecine, Site Xavier Bichat, Université Paris Diderot, Paris, France
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24
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Kiehn JT, Tsang AH, Heyde I, Leinweber B, Kolbe I, Leliavski A, Oster H. Circadian Rhythms in Adipose Tissue Physiology. Compr Physiol 2017; 7:383-427. [PMID: 28333377 DOI: 10.1002/cphy.c160017] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The different types of adipose tissues fulfill a wide range of biological functions-from energy storage to hormone secretion and thermogenesis-many of which show pronounced variations over the course of the day. Such 24-h rhythms in physiology and behavior are coordinated by endogenous circadian clocks found in all tissues and cells, including adipocytes. At the molecular level, these clocks are based on interlocked transcriptional-translational feedback loops comprised of a set of clock genes/proteins. Tissue-specific clock-controlled transcriptional programs translate time-of-day information into physiologically relevant signals. In adipose tissues, clock gene control has been documented for adipocyte proliferation and differentiation, lipid metabolism as well as endocrine function and other adipose oscillations are under control of systemic signals tied to endocrine, neuronal, or behavioral rhythms. Circadian rhythm disruption, for example, by night shift work or through genetic alterations, is associated with changes in adipocyte metabolism and hormone secretion. At the same time, adipose metabolic state feeds back to central and peripheral clocks, adjusting behavioral and physiological rhythms. In this overview article, we summarize our current knowledge about the crosstalk between circadian clocks and energy metabolism with a focus on adipose physiology. © 2017 American Physiological Society. Compr Physiol 7:383-427, 2017.
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Affiliation(s)
- Jana-Thabea Kiehn
- Chronophysiology Group, Medical Department I, University of Lübeck, Lübeck, Germany
| | - Anthony H Tsang
- Chronophysiology Group, Medical Department I, University of Lübeck, Lübeck, Germany
| | - Isabel Heyde
- Chronophysiology Group, Medical Department I, University of Lübeck, Lübeck, Germany
| | - Brinja Leinweber
- Chronophysiology Group, Medical Department I, University of Lübeck, Lübeck, Germany
| | - Isa Kolbe
- Chronophysiology Group, Medical Department I, University of Lübeck, Lübeck, Germany
| | - Alexei Leliavski
- Institute of Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Henrik Oster
- Chronophysiology Group, Medical Department I, University of Lübeck, Lübeck, Germany
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25
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Chedid P, Boussetta T, Dang PMC, Belambri SA, Marzaioli V, Fasseau M, Walker F, Couvineau A, El-Benna J, Marie JC. Vasoactive intestinal peptide dampens formyl-peptide-induced ROS production and inflammation by targeting a MAPK-p47 phox phosphorylation pathway in monocytes. Mucosal Immunol 2017; 10:332-340. [PMID: 27271317 DOI: 10.1038/mi.2016.51] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 05/03/2016] [Indexed: 02/08/2023]
Abstract
Reactive oxygen species (ROS) produced by the phagocyte NADPH oxidase (NOX2) are required for microbial clearance; however, when produced in excess they exacerbate inflammatory response and injure surrounding tissues. NOX2 is a multicomponent enzyme composed of membrane-associated cytochrome b588 and cytosolic components p47phox, p67phox, p40phox, and rac1/2. We investigated whether vasoactive intestinal peptide (VIP), an endogenous immune-modulatory peptide, could affect ROS production by NOX2 in primary human phagocytes. VIP did not modulate basal ROS production by phagocytes, but it inhibited monocyte and not neutrophil ROS production in response to the bacterial peptide N-formyl-methionyl-leucyl-phenylalanine (fMLF). The action of VIP was essentially mediated by high-affinity G-protein coupled receptors VPAC1 as its specific agonist, [ALA11,22,28]VIP, mimicked VIP-inhibitory effect, whereas the specific VPAC1 antagonist, PG97-269, blunted VIP action. Further, we showed that VIP inhibited fMLF-induced phosphorylation of ERK1/2 (extracellular signal-regulated kinase 1/2), p38MAPK (p38 mitogen-activated protein kinase) pathways, and phosphorylation of p47phox on Ser345 residue. Also, VIP exerted an anti-inflammatory effect in a model of carrageenan-induced inflammation in rats. We thus found that VIP exerts anti-inflammatory effects by inhibiting the "MAPK-p47phox phosphorylation-NOX2 activation" axis. These data suggest that VIP acts as a natural anti-inflammatory agent of the mucosal system and its analogs could be novel anti-inflammatory molecules.
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Affiliation(s)
- P Chedid
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, France
| | - T Boussetta
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, France
| | - P M-C Dang
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, France
| | - S A Belambri
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, France
| | - V Marzaioli
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, France
| | - M Fasseau
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
| | - F Walker
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, France
- Service d'Anatomie et Cytologie Pathologique, Hopital Xavier Bichat, Paris, France
| | - A Couvineau
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, France
| | - J El-Benna
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, France
| | - J-C Marie
- Inserm, U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Paris, France
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Boukemara H, Hurtado-Nedelec M, Marzaioli V, Bendjeddou D, El Benna J, Marie JC. Anvillea garcinii extract inhibits the oxidative burst of primary human neutrophils. Altern Ther Health Med 2016; 16:433. [PMID: 27809835 PMCID: PMC5095960 DOI: 10.1186/s12906-016-1411-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 10/20/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Anvillea garcinii Coss. & Durieu (Anv) plant is used as a traditional North African medicine against several diseases associated with inflammation. At inflammatory sites, reactive oxygen species (ROS) produced in excess by activated phagocyte NADPH oxidase (NOX2) can accentuate inflammatory responses. Thus, we investigated if Anv-water soluble polysaccharides could modulate primary human neutrophil oxidative burst in vitro. METHODS Human neutrophils were isolated from fresh whole blood and O2.- generation was measured by cytochrome c reduction assays. Western blots were used to analyse the translocation of PKC, p47phox (a key component of NOX2 activity) to neutrophil plasma membrane. Also, myeloperoxidase (MPO) release in the extracellular medium was studied by western blots. Flow cytometric analysis was used to detect CD11b membrane expression. RESULTS Water soluble polysaccharides from Anv dose-dependently inhibited N-formyl-methionyl-leucyl-phenylalanine (fMLF)- and phorbol myristate acetate (PMA)-induced O2.- generation by human neutrophils. Moreover, Anv-polysaccharides strongly inhibited PMA-induced PKCβ and p47phox translocation to membranes and p47phox phosphorylation on Ser328, a main PKC target. In contrast, polysaccharides extract from Zygophyllum gaetulum plant, which is also used as a traditional North African medicine against inflammatory diseases, was ineffective on this PKCβ-p47phox pathway. Further, Anv inhibited important neutrophil degranulation markers corresponding to myeloperoxidase (MPO) release and CD11b membrane expression. CONCLUSION The process of down-regulating NADPH oxidase by polysaccharides extracts from Anv provides new insights into the mechanism of Anv's anti-inflammatory actions.
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From Placenta to Polycystic Ovarian Syndrome: The Role of Adipokines. Mediators Inflamm 2016; 2016:4981916. [PMID: 27746590 PMCID: PMC5056282 DOI: 10.1155/2016/4981916] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 09/01/2016] [Indexed: 02/07/2023] Open
Abstract
Adipokines are cytokines produced mainly by adipose tissue, besides many other tissues such as placenta, ovaries, peripheral-blood mononuclear cells, liver, muscle, kidney, heart, and bone marrow. Adipokines play a significant role in the metabolic syndrome and in cardiovascular diseases, have implications in regulating insulin sensitivity and inflammation, and have significant effects on growth and reproductive function. The objective of this review was to analyze the functions known today of adiponectin, leptin, resistin, and visfatin from placenta throughout childhood and adolescence. It is well known now that their serum concentrations during pregnancy and lactation have long-term effects beyond the fetus and newborn. With regard to puberty, adipokines are involved in the regulation of the relationship between nutritional status and normal physiology or disorders of puberty and altered gonadal function, as, for example, premature pubarche and polycystic ovarian syndrome (PCOS). Cytokines are involved in the maturation of oocytes and in the regular progression of puberty and pregnancy.
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28
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Robak O, Kuzmina Z, Winkler A, Kalhs P, Rabitsch W, Greinix H. Adiponectin and resistin in acute and chronic graft-vs-host disease patients undergoing allogeneic hematopoietic stem cell transplantation. Croat Med J 2016; 57:255-65. [PMID: 27374827 PMCID: PMC4937231 DOI: 10.3325/cmj.2016.57.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Aim To investigate the association of adiponectin and resistin levels in patients undergoing hematopoietic stem cell transplantation (HSCT) with the clinical outcome, including the occurrence of acute and chronic graft-vs-host disease (GVHD), non-relapse mortality, and overall survival. Methods We prospectively collected serum samples from 40 patients undergoing either autologous (n = 12; 10 male) or allogeneic (n = 28; 11 male) HSCT for up to 12 months post HSCT and determined adiponectin and resistin serum concentrations using enzyme-linked immunosorbent assay. Results There were no significant differences in adiponectin levels (18.5 vs 9.3 µg/mL, P = 0.071) and adiponectin/BMI ratio (0.82 vs 0.39, P = 0.068) between patients with acute GVHD grades 2-4 and autologous controls. However, resistin values were significantly lower in patients with acute GVHD grades 2-4 than in autologous controls (4.6 vs 7.3 ng/mL, P = 0.030). Adiponectin levels were higher in patients with chronic GVHD (n = 17) than in autologous controls (13.5 vs 7.6 µg/mL, P = 0.051), but the difference was not significant. Adiponectin/BMI ratio was significantly higher in patients with chronic GVHD than in autologous controls (0.59 vs 0.25, P = 0.006). Patients dying from relapse also had significantly lower adiponectin levels (8.2 µg/mL) and adiponectin/BMI ratio (0.3) on admission than surviving allogeneic (15.8 µg/mL, P = 0.030 and 0.7, P = 0.004) and surviving autologous patients (19.2 µg/mL, P = 0.031 and 0.7, P = 0.021). Conclusion Adiponectin and resistin levels were altered in patients with acute and chronic GVHD compared to autologous controls and were associated with overall survival and relapse mortality in patients undergoing allogeneic HSCT.
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Affiliation(s)
- Oliver Robak
- Oliver Robak, Department of Internal Medicine I, Intensive Care Unit, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria,
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29
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Chen HM, Yang CM, Chang JF, Wu CS, Sia KC, Lin WN. AdipoR-increased intracellular ROS promotes cPLA2 and COX-2 expressions via activation of PKC and p300 in adiponectin-stimulated human alveolar type II cells. Am J Physiol Lung Cell Mol Physiol 2016; 311:L255-69. [PMID: 27288489 DOI: 10.1152/ajplung.00218.2015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 03/28/2016] [Indexed: 01/21/2023] Open
Abstract
Adiponectin, an adipokine, accumulated in lung system via T-cadherin after allergens/ozone challenge. However, the roles of adiponectin on lung pathologies were controversial. Here we reported that adiponectin stimulated expression of inflammatory proteins, cytosolic phospholipase A2 (cPLA2), cyclooxygenase-2 (COX-2), and production of reactive oxygen species (ROS) in human alveolar type II A549 cells. AdipoR1/2 involved in adiponectin-activated NADPH oxidase and mitochondria, which further promoted intracellular ROS accumulation. Protein kinase C (PKC) may involve an adiponectin-activated NADPH oxidase. Similarly, p300 phosphorylation and histone H4 acetylation occurred in adiponectin-challenged A549 cells. Moreover, adiponectin-upregulated cPLA2 and COX-2 expression was significantly abrogated by ROS scavenger (N-acetylcysteine) or the inhibitors of NADPH oxidase (apocynin), mitochondrial complex I (rotenone), PKC (Ro31-8220, Gö-6976, and rottlerin), and p300 (garcinol). Briefly, we reported that adiponectin stimulated cPLA2 and COX-2 expression via AdipoR1/2-dependent activation of PKC/NADPH oxidase/mitochondria resulting in ROS accumulation, p300 phosphorylation, and histone H4 acetylation. These results suggested that adiponectin promoted lung inflammation, resulting in exacerbation of pulmonary diseases via upregulating cPLA2 and COX-2 expression together with intracellular ROS production. Understanding the adiponectin signaling pathways on regulating cPLA2 and COX-2 may help develop therapeutic strategies on pulmonary diseases.
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Affiliation(s)
- Hsiao-Mei Chen
- Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, Xinzhuang, New Taipei City, Taiwan
| | - Chuen-Mao Yang
- Department of Physiology and Pharmacology and Health Aging Research Center, College of Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan; Department of Anesthetics, Chang Gung Memorial Hospital at Linkuo, Kwei-San, Tao-Yuan, Taiwan; Research Center for Industry of Human Ecology and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Tao-Yuan, Taiwan
| | - Jia-Feng Chang
- PhD Program in Nutrition and Food Science, Fu Jen Catholic University, Xinzhuang, New Taipei City, Taiwan; Department of Internal Medicine, En-Chu-Kong Hospital, Sanxia, New Taipei City, Taiwan
| | - Chi-Sheng Wu
- Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, Xinzhuang, New Taipei City, Taiwan
| | - Kee-Chin Sia
- Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, Xinzhuang, New Taipei City, Taiwan
| | - Wei-Ning Lin
- Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, Xinzhuang, New Taipei City, Taiwan
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30
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Luo Y, Liu M. Adiponectin: a versatile player of innate immunity. J Mol Cell Biol 2016; 8:120-8. [PMID: 26993045 DOI: 10.1093/jmcb/mjw012] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 01/04/2016] [Indexed: 02/06/2023] Open
Abstract
Adiponectin acts as a key regulator of the innate immune system and plays a major role in the progression of inflammation and metabolic disorders. Macrophages and monocytes are representative components of the innate immune system, and their proliferation, plasticity, and polarization are a key component of metabolic adaption. Innate-like lymphocytes such as group 2 innate lymphoid cells (ILC2s), natural killer T (NKT) cells, and gamma delta T (γδ T) cells are also members of the innate immune system and play important roles in the development of obesity and its related diseases. Adiponectin senses metabolic stress and modulates metabolic adaption by targeting the innate immune system under physiological and pathological conditions. Defining the mechanisms underlying the role of adiponectin in regulating innate immunity is crucial to adiponectin-based therapeutic intervention.
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Affiliation(s)
- Yan Luo
- Institute of Metabolism and Endocrinology, Metabolic Syndrome Research Center, the Second Xiangya Hospital, Central South University, Changsha 410011, China Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Meilian Liu
- Institute of Metabolism and Endocrinology, Metabolic Syndrome Research Center, the Second Xiangya Hospital, Central South University, Changsha 410011, China Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
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31
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Falk Libby E, Liu J, Li YI, Lewis MJ, Demark-Wahnefried W, Hurst DR. Globular adiponectin enhances invasion in human breast cancer cells. Oncol Lett 2015; 11:633-641. [PMID: 26870258 PMCID: PMC4726973 DOI: 10.3892/ol.2015.3965] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 11/05/2015] [Indexed: 02/05/2023] Open
Abstract
Every year, a large number of women succumb to metastatic breast cancer due to a lack of curative approaches for this disease. Adiponectin (AdipoQ) is the most abundant of the adipocyte-secreted adipokines. In recent years, there has been an interest in the use of AdipoQ and AdipoQ receptor agonists as therapeutic agents for the treatment of breast cancer. However, while multiple epidemiological studies have previously indicated that low levels of circulating plasma AdipoQ portend poor prognosis in patients with breast cancer, recent studies have reported that elevated expression levels of AdipoQ in breast tissue are correlated with advanced stages of the disease. Thus, the aim of the present study was to clarify the mechanism by which AdipoQ in breast tissue acts directly on tumor cells to regulate the early steps of breast cancer metastasis. In the present study, the effects of different AdipoQ isoforms on the metastatic potential of human breast cancer cells were investigated. The results revealed that globular adiponectin (gAd) promoted invasive cell morphology and significantly increased the migration and invasion abilities of breast cancer cells, whereas full-length adiponectin (fAd) had no effect on these cells. Additionally, gAd, but not fAd, increased the expression levels of microtubule-associated protein 1 light chain 3 beta (LC3B)-II and intracellular LC3B puncta, which are indicators of autophagosome formation, thus suggesting autophagic induction by gAd. Furthermore, the inhibition of autophagic function by autophagy-related protein 7 knockdown attenuated the gAd-induced increase in invasiveness in breast cancer cells. Therefore, the results of the present study suggested that a specific AdipoQ isoform may enhance breast cancer invasion, possibly via autophagic induction. Understanding the roles of the different AdipoQ isoforms as microenvironmental regulatory molecules may aid the development of effective AdipoQ-based treatments for breast cancer.
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Affiliation(s)
- Emily Falk Libby
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL 35294-0019, USA; Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294-0019, USA
| | - Jianzhong Liu
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294-0019, USA
| | - Y I Li
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Monica J Lewis
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294-0019, USA
| | - Wendy Demark-Wahnefried
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL 35294-0019, USA
| | - Douglas R Hurst
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294-0019, USA
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Expression of Adiponectin Receptors on Peripheral Blood Leukocytes of Hypertensive Children Is Associated with the Severity of Hypertension. BIOMED RESEARCH INTERNATIONAL 2015; 2015:742646. [PMID: 26146630 PMCID: PMC4471253 DOI: 10.1155/2015/742646] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/30/2015] [Accepted: 02/25/2015] [Indexed: 12/16/2022]
Abstract
The aim of the study was to find out whether peripheral blood leukocyte adiponectin receptors 1 and 2 (AdipoR1, AdipoR2) protein expression patterns (flow cytometry) differ between the primary hypertension children (n = 57) and healthy controls (n = 19) and if their expression levels are related to selected clinical parameters. The group of 26 patients [AdipoR(-)] showed lower and the group of 31 patients [AdipoR(+)] showed higher AdipoRs protein expression than the control and each other (P < 0.01 for neutrophils, P < 0.05 for monocytes). The AdipoR(+) leukocytes expressed higher AdipoR1 mRNA levels (RT-PCR) than AdipoR(-) ones and controls (P = 0.022 and P = 0.007, resp.). Despite greater BMI, the AdipoR(-) patients had unchanged serum adiponectin levels. In contrast, AdipoR(+) patients had lower serum adiponectin concentrations than the AdipoR(-) ones and controls (P < 0.001). The AdipoR(+) patients had higher blood pressure (P = 0.042) and greater carotid intima-media thickness (P = 0.017) than the AdipoR(-) ones. The stage of hypertension was associated with increased neutrophil but not monocyte AdipoR1 density (AdipoR1 MFI) (P < 0.05). Severe ambulatory hypertension was presented more often in AdipoR(+) patients than in AdipoR(-) ones (51.6% versus 26.9%, resp.; P < 0.01). In conclusion, neutrophil AdipoRs upregulation was associated with early stages of vascular injury, hypertension severity, and low serum levels of adiponectin.
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Kontny E, Janicka I, Skalska U, Maśliński W. The effect of multimeric adiponectin isoforms and leptin on the function of rheumatoid fibroblast-like synoviocytes. Scand J Rheumatol 2015; 44:363-8. [PMID: 25974170 DOI: 10.3109/03009742.2015.1025833] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To evaluate the effects of physiologically relevant concentrations of multimeric adiponectin isoforms and leptin on the function of fibroblast-like synoviocytes (FLS) from patients with rheumatoid arthritis (RA). METHOD FLS, isolated from the synovial tissue of 21 RA patients, were stimulated for 24 h with interleukin (IL)-1β (1 ng/mL) and adiponectin isoforms [fraction enriched with high-molecular-weight (HMW) oligomers and middle-molecular-weight (MMW) hexamers or low-molecular-weight (LMW) trimers, 10 μg/mL each], or leptin (10 ng/mL), either separately or in a combination of IL-1β and the respective adipokine. Moreover, cells were pre-treated for 24 h with adipokines, then stimulated for 8 h with IL-1β. The concentrations of IL-6, IL-8, matrix metalloproteinase (MMP)-3, and dickkopf (DKK)-1, an inhibitor of osteoblastogenesis, in culture supernatants, as well as the concentrations of leptin, HMW, MMW, and LMW adiponectin in sera and synovial fluid (SF) samples, were measured by specific enzyme-linked immunosorbent assays (ELISAs). RESULTS In comparison with sera, SF samples contained similar amounts of leptin, lower amounts of total adiponectin but a higher proportion of the LMW isoform. Separately added IL-1β and HMW/MMW adiponectin, but not LMW adiponectin or leptin, up-regulated the release of IL-6, IL-8, and MMP-3 from FLS but no synergy was observed in co-stimulation experiments. However, pre-treatment of FLS with HMW/MMW or LMW significantly raised the IL-1β-triggered secretion of MMP-3 and IL-6 or MMP-3, respectively. CONCLUSIONS Adiponectin not only triggers pro-inflammatory and pro-destructive activities of rheumatoid FLS but also pre-disposes these cells to a stronger response to IL-1β. Thus, it is likely that adiponectin is more important in the initiation phase than in the chronic phase of RA.
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Affiliation(s)
- E Kontny
- a Department of Pathophysiology and Immunology , Institute of Rheumatology , Warsaw , Poland
| | - I Janicka
- a Department of Pathophysiology and Immunology , Institute of Rheumatology , Warsaw , Poland
| | - U Skalska
- a Department of Pathophysiology and Immunology , Institute of Rheumatology , Warsaw , Poland
| | - W Maśliński
- a Department of Pathophysiology and Immunology , Institute of Rheumatology , Warsaw , Poland
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Kramer PA, Chacko BK, Ravi S, Johnson MS, Mitchell T, Barnes S, Arabshahi A, Dell’Italia LJ, George DJ, Steele C, George JF, Darley-Usmar VM, Melby SJ. Hemoglobin-associated oxidative stress in the pericardial compartment of postoperative cardiac surgery patients. J Transl Med 2015; 95:132-41. [PMID: 25437645 PMCID: PMC4422823 DOI: 10.1038/labinvest.2014.144] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 10/09/2014] [Indexed: 12/17/2022] Open
Abstract
Atherosclerosis and valvular heart disease often require treatment with corrective surgery to prevent future myocardial infarction, ischemic heart disease, and heart failure. Mechanisms underlying the development of the associated complications of surgery are multifactorial and have been linked to inflammation and oxidative stress, classically as measured in the blood or plasma of patients. Postoperative pericardial fluid (PO-PCF) has not been investigated in depth with respect to the potential to induce oxidative stress. This is important because cardiac surgery disrupts the integrity of the pericardial membrane surrounding the heart and causes significant alterations in the composition of the pericardial fluid (PCF). This includes contamination with hemolyzed blood and high concentrations of oxidized hemoglobin, which suggests that cardiac surgery results in oxidative stress within the pericardial space. Accordingly, we tested the hypothesis that PO-PCF is highly pro-oxidant and that the potential interaction between inflammatory cell-derived hydrogen peroxide with hemoglobin is associated with oxidative stress. Blood and PCF were collected from 31 patients at the time of surgery and postoperatively from 4 to 48 h after coronary artery bypass grafting, valve replacement, or valve repair (mitral or aortic). PO-PCF contained high concentrations of neutrophils and monocytes, which are capable of generating elevated amounts of superoxide and hydrogen peroxide through the oxidative burst. In addition, PO-PCF primed naive neutrophils resulting in an enhanced oxidative burst upon stimulation. The PO-PCF also contained increased concentrations of cell-free oxidized hemoglobin that was associated with elevated levels of F2α isoprostanes and prostaglandins, consistent with both oxidative stress and activation of cyclooxygenase. Lastly, protein analysis of the PO-PCF revealed evidence of protein thiol oxidation and protein carbonylation. We conclude that PO-PCF is highly pro-oxidant and speculate that it may contribute to the risk of postoperative complications.
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Affiliation(s)
- Philip A. Kramer
- Mitochondrial Medicine Laboratory, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Balu K. Chacko
- Mitochondrial Medicine Laboratory, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Saranya Ravi
- Mitochondrial Medicine Laboratory, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Michelle S. Johnson
- Mitochondrial Medicine Laboratory, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Tanecia Mitchell
- Mitochondrial Medicine Laboratory, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Stephen Barnes
- Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Targeted Metabolomics and Proteomics Laboratory, Department of Pharmacology and Toxicology, University of Alabama at Birmingham, AL 35294
| | - Alireza Arabshahi
- Targeted Metabolomics and Proteomics Laboratory, Department of Pharmacology and Toxicology, University of Alabama at Birmingham, AL 35294
| | - Louis J. Dell’Italia
- Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Center for Heart Failure Research, Division of Cardiovascular Sciences, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294,Department of Veterans Affairs Medical Center, Birmingham, Alabama, USA
| | - David J. George
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Chad Steele
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - James F. George
- Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Victor M. Darley-Usmar
- Mitochondrial Medicine Laboratory, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Spencer J. Melby
- Center for Free Radical Biology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294,Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294,Corresponding author.
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Zhang R, Wu J, Liu D, Shan H, Zhang J. Anti-inflammatory effect of full-length adiponectin and proinflammatory effect of globular adiponectin in esophageal adenocarcinoma cells. Oncol Res 2014; 21:15-21. [PMID: 24330848 DOI: 10.3727/096504013x13786659070235] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Adiponectin, an adipocyte-derived hormone with anti-inflammatory and antitumor activity, inhibits esophageal adenocarcinoma (EAC) cell proliferation and induces apoptosis. Chronic inflammation is a key process involved in initiation and progression of EAC, but the roles and mechanisms of adiponectin in inflammation have not been fully understood in EAC. We aimed to analyze the effects of two types of adiponectin, full-length adiponectin (f-Ad) and globular adiponectin (g-Ad), on inflammatory factors' expression and explore the roles of ROS/NF-κB signaling pathway in adiponectin-regulated inflammation in EAC cells. It was found that f-Ad and g-Ad differently regulated both mRNA and protein levels of TNF-α, IL-8, and IL-6 in a dose-dependent manner in OE19 cells. g-Ad apparently induced TNF-α, IL-8, and IL-6 production, which was inhibited by PDTC or NAC, and increased intracellular ROS levels and NF-κB p65 activation, whereas f-Ad significantly suppressed production of inflammatory factors and NF-κB p65 activation and also decreased the intracellular ROS levels. In conclusion, the study demonstrated that g-Ad exerts a proinflammatory effect whereas f-Ad appears to induce an anti-inflammatory effect in a ROS/NF-κB-dependent manner in OE19 cells.
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Affiliation(s)
- Rong Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
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Rossi A, Lord JM. Adiponectin inhibits neutrophil apoptosis via activation of AMP kinase, PKB and ERK 1/2 MAP kinase. Apoptosis 2014; 18:1469-80. [PMID: 23982477 PMCID: PMC3825413 DOI: 10.1007/s10495-013-0893-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Neutrophils are abundant, short-lived leukocytes that play a key role in the immune defense against microbial infections. These cells die by apoptosis following activation and uptake of microbes and will also enter apoptosis spontaneously at the end of their lifespan if they do not encounter a pathogen. Adiponectin exerts anti-inflammatory effects on neutrophil antimicrobial functions, but whether this abundant adipokine influences neutrophil apoptosis is unknown. Here we report that adiponectin in the physiological range (1–10 μg/ml) reduced apoptosis in resting neutrophils, decreasing caspase-3 cleavage and maintaining Mcl-1 expression by stabilizing this anti-apoptotic protein. We show that adiponectin induced phosphorylation of AMP-activated kinase (AMPK), protein kinase B (PKB), extracellular signal-regulated kinase (ERK 1/2) and p38 mitogen activated protein kinase (MAPK). Pharmacological inhibition of AMPK, PKB and ERK 1/2 ablated the pro-survival effects of adiponectin and treatment of neutrophils with an AMPK specific activator (AICAR) and AMPK inhibitor (compound C) respectively decreased and increased apoptosis. Finally, activation of AMPK by AICAR or adiponectin also decreased ceramide accumulation in the neutrophil cell membrane, a process involved in the early stages of spontaneous apoptosis, giving another possible mechanism downstream of AMPK activation for the inhibition of neutrophil apoptosis.
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Affiliation(s)
- Alessandra Rossi
- MRC Centre for Immune Regulation, School of Immunity and Infection, University of Birmingham, Birmingham, B15 2TT, UK
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Linking adiponectin and autophagy in the regulation of breast cancer metastasis. J Mol Med (Berl) 2014; 92:1015-23. [PMID: 24903246 DOI: 10.1007/s00109-014-1179-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 05/20/2014] [Accepted: 05/27/2014] [Indexed: 12/17/2022]
Abstract
Adipokines within the tumor microenvironment may play important roles in regulating the early steps of breast cancer metastasis. Adiponectin (AdipoQ) is the most abundant adipokine and exists in multiple forms: full-length multimers (fAd) and a cleaved, globular isoform (gAd). While these isoforms are observed as having distinct biological properties, nearly all investigation into AdipoQ in breast cancer has focused on the antitumor roles of fAd, while mostly ignoring gAd. However, evidence from other disease settings suggests that gAd is linked to processes known to promote metastasis. Here, we discuss key areas in which knowledge about AdipoQ in breast cancer is lacking, expressly focusing on data suggesting that gAd is elevated in the microenvironment and may act directly on invasive breast cancer cells to support their initial metastatic progression. We discuss autophagy as a potential mechanism of action for this effect. Overall, given that AdipoQ and AdipoQ receptor agonists have been proposed as therapeutic strategies, it is necessary to better understand the various functions of these regulatory molecules in metastatic breast cancer. Doing so will help ensure the most effective approaches to treating this disease, for which there remain no curative options.
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Sato K, Shibata Y, Abe S, Inoue S, Igarashi A, Yamauchi K, Aida Y, Nunomiya K, Nakano H, Sato M, Kimura T, Nemoto T, Watanabe T, Konta T, Ueno Y, Kato T, Kayama T, Kubota I. Association between plasma adiponectin levels and decline in forced expiratory volume in 1 s in a general Japanese population: the Takahata study. Int J Med Sci 2014; 11:758-64. [PMID: 24936137 PMCID: PMC4057484 DOI: 10.7150/ijms.8919] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 05/02/2014] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Adiponectin is an anti-inflammatory and cardio-protective cytokine. However, several studies have demonstrated that plasma adiponectin levels were inversely associated with pulmonary function in patients with chronic obstructive pulmonary disease, suggesting a proinflammatory or pulmonary-destructive role. It is still unclear whether adiponectin is a potent biomarker predicting declines in pulmonary function. The aim of this study was to investigate the association between adiponectin and pulmonary function among Japanese individuals who participated in an annual health check-up. METHODS Spirometry and blood sampling, including measurements of plasma adiponectin, were performed for 3,253 subjects aged 40 years or older who participated in a community-based annual health check-up in Takahata, Japan from 2004 to 2006. In 2011, spirometry was re-performed, and the data from 872 subjects (405 men and 467 women) were available for a longitudinal analysis. RESULTS Plasma adiponectin levels were found to be significantly associated with age, body mass index (BMI), and alanine aminotransferase (ALT), triglycerides (TG), and high-density lipoprotein-cholesterol (HDL-c) levels among both men and women in the study population. Plasma adiponectin levels were found to be associated with lifetime cigarette consumption (Brinkman index, BI) in men only. Plasma adiponectin levels were inversely correlated with forced expiratory volume in 1 s (FEV1) per forced vital capacity in both men and women. In addition, the annual change in FEV1 was inversely associated with plasma adiponectin levels in both genders. A multiple linear regression analysis revealed that this association was independent of other confounding factors such as age, BMI, BI, ALT, TG, and HDL-c. CONCLUSIONS The results of the present study suggest that adiponectin levels are predictive of declines in FEV1 in the general population.
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Affiliation(s)
- Kento Sato
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Yoko Shibata
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Shuichi Abe
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Sumito Inoue
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Akira Igarashi
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Keiko Yamauchi
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Yasuko Aida
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Keiko Nunomiya
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Hiroshi Nakano
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Masamichi Sato
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Tomomi Kimura
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Takako Nemoto
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Tetsu Watanabe
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Tsuneo Konta
- 1. Department of Cardiology, Pulmonology, and Nephrology
| | - Yoshiyuki Ueno
- 2. Global Center of Excellence Program Study Group, Yamagata University School of Medicine, 2-2-2 Iida-Nishi Yamagata 990-9585, Japan
| | - Takeo Kato
- 2. Global Center of Excellence Program Study Group, Yamagata University School of Medicine, 2-2-2 Iida-Nishi Yamagata 990-9585, Japan
| | - Takamasa Kayama
- 2. Global Center of Excellence Program Study Group, Yamagata University School of Medicine, 2-2-2 Iida-Nishi Yamagata 990-9585, Japan
| | - Isao Kubota
- 1. Department of Cardiology, Pulmonology, and Nephrology
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Chen HT, Tsou HK, Chen JC, Shih JMK, Chen YJ, Tang CH. Adiponectin enhances intercellular adhesion molecule-1 expression and promotes monocyte adhesion in human synovial fibroblasts. PLoS One 2014; 9:e92741. [PMID: 24667577 PMCID: PMC3965461 DOI: 10.1371/journal.pone.0092741] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 02/24/2014] [Indexed: 12/13/2022] Open
Abstract
Adiponectin is a protein hormone secreted predominantly by differentiated adipocytes and is involved in energy homeostasis. Adiponectin expression is significantly high in the synovial fluid of patients with osteoarthritis (OA). Intercellular adhesion molecule-1 (ICAM-1) is an important adhesion molecule that mediates monocyte adhesion and infiltration during OA pathogenesis. Adiponectin-induced expression of ICAM-1 in human OA synovial fibroblasts (OASFs) was examined by using qPCR, flow cytometry and western blotting. The intracellular signaling pathways were investigated by pretreated with inhibitors or transfection with siRNA. The monocyte THP-1 cell line was used for an adhesion assay with OASFs. Stimulation of OASFs with adiponectin induced ICAM-1 expression. Pretreatment with AMP-activated protein kinase (AMPK) inhibitors (AraA and compound C) or transfection with siRNA against AMPKα1 and two AMPK upstream activator- liver kinase B1 (LKB1) and calmodulin-dependent protein kinase II (CaMKII) diminished the adiponectin-induced ICAM-1 expression. Stimulation of OASFs with adiponectin increased phosphorylation of LKB1, CaMKII, AMPK, and c-Jun, resulting in c-Jun binding to AP-1 element of ICAM-1 promoter. In addition, adiponectin-induced activation of the LKB1/CaMKII, AMPK, and AP-1 pathway increased the adhesion of monocytes to the OASF monolayer. Our results suggest that adiponectin increases ICAM-1 expression in human OASFs via the LKB1/CaMKII, AMPK, c-Jun, and AP-1 signaling pathway. Adiponectin-induced ICAM-1 expression promoted the adhesion of monocytes to human OASFs. These findings may provide a better understanding of the pathogenesis of OA and can utilize this knowledge to design a new therapeutic strategy.
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Affiliation(s)
- Hsien-Te Chen
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Orthopaedic Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Hsi-Kai Tsou
- Department of Neurosurgery, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Early Childhood Care and Education, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli County, Taiwan
| | - Jui-Chieh Chen
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County, Zhunan, Taiwan
| | | | - Yen-Jen Chen
- Department of Orthopaedic Surgery, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, China Medical University, Taichung, Taiwan
| | - Chih-Hsin Tang
- School of Medicine, China Medical University, Taichung, Taiwan
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Department of Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
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Zhang R, Yin X, Shi H, Wu J, Shakya P, Liu D, Zhang J. Adiponectin modulates DCA-induced inflammation via the ROS/NF-κ B signaling pathway in esophageal adenocarcinoma cells. Dig Dis Sci 2014; 59:89-97. [PMID: 24096876 DOI: 10.1007/s10620-013-2877-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Accepted: 09/04/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND Deoxycholic acid (DCA) promotes the development and progression of esophageal adenocarcinoma (EAC) by inducing inflammation. Adiponectin is reported to have anti-inflammatory and anti-tumor effects. PURPOSE This study investigated the effects of two types of adiponectin, full-length adiponectin (f-Ad) and globular adiponectin (g-Ad), on DCA-induced inflammation, and investigated the involvement of the reactive oxygen species (ROS)/NF-κB signaling pathway in inflammation in EAC. METHODS OE19 cells were treated with DCA (50-300 μM) and/or f-Ad/g-Ad (10.0 μg/ml) or N-acetylcysteine (NAC). The viability of cells exposed to DCA was measured by use of the MTT assay. mRNA and protein levels of the inflammatory factors were examined by real-time PCR and ELISA. Intra-cellular ROS levels were determined by use of flow cytometry. Protein levels of total and p-NF-κB p65 were measured by western blot. RESULTS DCA induced dose and time-dependent cytotoxicity. mRNA and protein expression of TNF-α, IL-8, and IL-6 in cells treated with DCA alone were up-regulated, and intra-cellular ROS and p-NF-κB p65 protein levels were also increased. g-Ad promoted inflammatory factor production, ROS levels, and p-NF-κB p65 protein expression whereas f-Ad had a suppressive effect. When combined with DCA, g-Ad enhanced the pro-inflammatory effect of DCA whereas f-Ad, similar to NAC, suppressed the effect. CONCLUSION DCA has a pro-inflammatory effect in EAC. f-Ad has an anti-inflammatory effect whereas g-Ad seems to have a pro-inflammatory effect in an ROS/NF-κB p65-dependent manner. This indicates that f-Ad could be a potential anti-inflammatory reagent for cancer therapy.
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Affiliation(s)
- Rong Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of School of Medicine, Xi'an Jiaotong University, No. 157, Xi Wu Road, Xi'an, 710004, Shaanxi Province, China
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Adiponectin inhibits neutrophil phagocytosis of Escherichia coli by inhibition of PKB and ERK 1/2 MAPK signalling and Mac-1 activation. PLoS One 2013; 8:e69108. [PMID: 23935932 PMCID: PMC3723777 DOI: 10.1371/journal.pone.0069108] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 06/06/2013] [Indexed: 11/24/2022] Open
Abstract
Full length adiponectin is a potent immune modulatory adipokine, impacting upon the actions of several immune cells. Neutrophil oxidative burst has been shown to decrease in response to adiponectin, and we speculated that it could have other effects on neutrophil function. Here we report that adiponectin reduces the phagocytic ability of human neutrophils, decreasing significantly the ingestion of opsonised E. coli by these cells in whole blood (p<0.05) and as isolated neutrophils (p<0.05). We then determined the mechanisms involved. We observed that the activation of Mac-1, the receptor engaged in complement-mediated phagocytosis, was decreased by adiponectin in response to E. coli stimulation. Moreover, treatment of neutrophils with adiponectin prior to incubation with E. coli significantly inhibited signalling through the PI3K/PKB and ERK 1/2 pathways, with a parallel reduction of F-actin content. Studies with pharmacological inhibitors showed that inhibition of PI3K/PKB, but not ERK 1/2 signalling was able to prevent the activation of Mac-1. In conclusion, we propose that adiponectin negatively affects neutrophil phagocytosis, reducing the uptake of E. coli and inhibiting Mac-1 activation, the latter by blockade of the PI3K/PKB signal pathway.
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Wedellova Z, Kovacova Z, Tencerova M, Vedral T, Rossmeislova L, Siklova-Vitkova M, Stich V, Polak J. The Impact of Full-Length, Trimeric and Globular Adiponectin on Lipolysis in Subcutaneous and Visceral Adipocytes of Obese and Non-Obese Women. PLoS One 2013; 8:e66783. [PMID: 23805277 PMCID: PMC3689658 DOI: 10.1371/journal.pone.0066783] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 05/13/2013] [Indexed: 01/14/2023] Open
Abstract
Contribution of individual adiponectin isoforms to lipolysis regulation remains unknown. We investigated the impact of full-length, trimeric and globular adiponectin isoforms on spontaneous lipolysis in subcutaneous abdominal (SCAAT) and visceral adipose tissues (VAT) of obese and non-obese subjects. Furthermore, we explored the role of AMPK (5'-AMP-activated protein kinase) in adiponectin-dependent lipolysis regulation and expression of adiponectin receptors type 1 and 2 (AdipoR1 and AdipoR2) in SCAAT and VAT. Primary adipocytes isolated from SCAAT and VAT of obese and non-obese women were incubated with 20 µg/ml of: A) full-length adiponectin (physiological mixture of all adiponectin isoforms), B) trimeric adiponectin isoform or C) globular adiponectin isoform. Glycerol released into media was used as a marker of lipolysis. While full-length adiponectin inhibited lipolysis by 22% in non-obese SCAAT, globular isoform inhibited lipolysis by 27% in obese SCAAT. No effect of either isoform was detected in non-obese VAT, however trimeric isoform inhibited lipolysis by 21% in obese VAT (all p<0.05). Trimeric isoform induced Thr172 p-AMPK in differentiated preadipocytes from a non-obese donor, while globular isoform induced Ser79 p-ACC by 32% (p<0.05) and Ser565 p-HSL by 52% (p = 0.08) in differentiated preadipocytes from an obese donor. AdipoR2 expression was 17% and 37% higher than AdipoR1 in SCAAT of obese and non-obese groups and by 23% higher in VAT of obese subjects (all p<0.05). In conclusion, the anti-lipolytic effect of adiponectin isoforms is modified with obesity: while full-length adiponectin exerts anti-lipolytic action in non-obese SCAAT, globular and trimeric isoforms show anti-lipolytic activity in obese SCAAT and VAT, respectively.
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Affiliation(s)
- Zuzana Wedellova
- Department of Sport Medicine, Third Faculty of Medicine, Charles University in Prague, Czech Republic
- 2 Internal Medicine Department, University Hospital of Kralovske Vinohrady, Prague, Czech Republic
| | - Zuzana Kovacova
- Department of Sport Medicine, Third Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Michaela Tencerova
- Department of Sport Medicine, Third Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Tomas Vedral
- General Surgery Department, University Hospital of Kralovske Vinohrady, Prague, Czech Republic
| | - Lenka Rossmeislova
- Franco-Czech Laboratory for Clinical Research on Obesity, Third Faculty of Medicine and INSERM Unite 586, Charles University, Prague, Czech Republic
| | - Michaela Siklova-Vitkova
- Department of Sport Medicine, Third Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Vladimir Stich
- Department of Sport Medicine, Third Faculty of Medicine, Charles University in Prague, Czech Republic
- Franco-Czech Laboratory for Clinical Research on Obesity, Third Faculty of Medicine and INSERM Unite 586, Charles University, Prague, Czech Republic
| | - Jan Polak
- Department of Sport Medicine, Third Faculty of Medicine, Charles University in Prague, Czech Republic
- 2 Internal Medicine Department, University Hospital of Kralovske Vinohrady, Prague, Czech Republic
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
- * E-mail:
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Adipocytokines : des acteurs de l’inflammation dans les rhumatismes inflammatoires chroniques et les maladies auto-immunes ? Presse Med 2013; 42:13-8. [DOI: 10.1016/j.lpm.2012.02.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Revised: 02/21/2012] [Accepted: 02/23/2012] [Indexed: 02/07/2023] Open
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Ge Q, Gérard J, Noël L, Scroyen I, Brichard SM. MicroRNAs regulated by adiponectin as novel targets for controlling adipose tissue inflammation. Endocrinology 2012; 153:5285-96. [PMID: 23015294 DOI: 10.1210/en.2012-1623] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A low-grade proinflammatory state contributes to the metabolic syndrome (MS). Adiponectin (ApN), which is reduced in the MS, has emerged as a master regulator of inflammation/immunity. We wanted to identify whether microRNAs (miRNAs) may mediate the antiinflammatory action of ApN on adipose tissue (AT). miRNA expression profiling was performed in mice overexpressing ApN specifically in AT and in wild-type controls. The role of specific miRNAs was analyzed by gain- or loss-of function approaches in 3T3-F442A (pre)-adipocytes and in de novo AT formed from engineered 3T3-F442A preadipocytes transplanted in nude mice. miRNA expression was compared in the omental AT of lean and obese subjects. The expression of miR532-5p and miR1983 was down-regulated, whereas that of miR883b-5p and miR1934 was up-regulated in AT of mice overexpressing ApN specifically in AT. We focused on miR883b-5p identified by computational analysis as being involved in inflammatory pathways. miR883b-5p overexpression down-regulated the lipopolysaccharide-binding protein (LBP) in 3T3-F442A cells, whereas miR883b-5p blockade had reverse effects. LBP aids in lipopolysaccharide binding to Toll-like receptor-4. miR883b-5p blockade also abolished the protective effects of ApN on proinflammatory adipokine induction. These data were recapitulated in the de novo AT in which miR883b-5p silencing induced LBP production and tissue inflammation. Eventually miR883b-5p expression was down-regulated in AT of obese subjects. We identified several novel miRNAs that are regulated by ApN in AT in vivo. miR883b-5p, which is up-regulated by ApN represses LBP and Toll-like receptor-4 signaling, acting therefore as a major mediator of the antiinflammatory action of ApN. These novel miRNAs may open new therapeutic perspectives for the MS.
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Affiliation(s)
- Qian Ge
- Endocrinology, Diabetes, and Nutrition Unit, Institute of Experimental and Clinical Research, Medical Sector, University of Louvain, Brussels, Belgium
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Krysiak R, Handzlik-Orlik G, Okopien B. The role of adipokines in connective tissue diseases. Eur J Nutr 2012; 51:513-28. [PMID: 22584415 PMCID: PMC3397228 DOI: 10.1007/s00394-012-0370-0] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Accepted: 04/26/2012] [Indexed: 12/14/2022]
Abstract
Objective To discuss the relationship between adipokines and connective tissue diseases, by putting special emphasis on the potential role of leptin, adiponectin, resistin, and other adipose tissue products in the pathogenesis of rheumatoid arthritis and systemic lupus erythematosus and on possible application of adipokine-targeted therapy in the treatment of these disorders with emphasis on the recent findings. Methods PubMed literature search complemented by review of bibliographies listed in identified articles. Results Most of the data presented by different research groups showed changed levels of leptin, adiponectin, and resistin and occasionally also other adpokines in rheumatoid arthritis and systemic lupus erythematosus. The relationship between the remaining connective tissue diseases and adipokines is less documented. Conclusions Plasma levels of adipokines might tell us too little about their role in connective tissue disorders, whereas adipokine effects on synovial tissues might differ from their known metabolic or cardiovascular effects, which implies that some re-appraisal of adipokines role may need to take place. It still remains obscure whether the observed disturbances in various adipokine systems in subjects with connective tissue diseases contribute to their development or only reflect the presence or activity of inflammatory process, which itself is induced by other pro-inflammatory factors.
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Affiliation(s)
- Robert Krysiak
- Department of Internal Medicine and Clinical Pharmacology, Medical University of Silesia, Medyków 18, 40-752, Katowice, Poland
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