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Yang C, Rubin L, Yu X, Lazarovici P, Zheng W. Preclinical evidence using synthetic compounds and natural products indicates that AMPK represents a potential pharmacological target for the therapy of pulmonary diseases. Med Res Rev 2024; 44:1326-1369. [PMID: 38229486 DOI: 10.1002/med.22014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 12/07/2023] [Accepted: 12/30/2023] [Indexed: 01/18/2024]
Abstract
Adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) is a highly conserved eukaryotic enzyme discovered as a key regulator of cellular energy homeostasis, with anti-inflammation, antioxidative stress, anticancer, and antifibrosis beneficial effects. AMPK is dysregulated in human pulmonary diseases such as acute lung injury, nonsmall cell lung cancer, pulmonary fibrosis, chronic obstructive pulmonary disease, and asthma. This review provides an overview of the beneficial role of natural, synthetic, and Chinese traditional medicines AMPK modulators in pulmonary diseases, and highlights the role of the AMPK signaling pathway in the lung, emphasizing the importance of finding lead compounds and drugs that can target and modulate AMPK to treat the lung diseases.
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Affiliation(s)
- Chao Yang
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Limor Rubin
- Allergy and Clinical Immunology Unit, Department of Medicine, Jerusalem, Israel
| | - Xiyong Yu
- School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Philip Lazarovici
- School of Pharmacy Institute for Drug Research, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Wenhua Zheng
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
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2
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Reilly NA, Sonnet F, Dekkers KF, Kwekkeboom JC, Sinke L, Hilt S, Suleiman HM, Hoeksema MA, Mei H, van Zwet EW, Everts B, Ioan-Facsinay A, Jukema JW, Heijmans BT. Oleic acid triggers metabolic rewiring of T cells poising them for T helper 9 differentiation. iScience 2024; 27:109496. [PMID: 38558932 PMCID: PMC10981094 DOI: 10.1016/j.isci.2024.109496] [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: 09/21/2023] [Revised: 11/29/2023] [Accepted: 03/09/2024] [Indexed: 04/04/2024] Open
Abstract
T cells are the most common immune cells in atherosclerotic plaques, and the function of T cells can be altered by fatty acids. Here, we show that pre-exposure of CD4+ T cells to oleic acid, an abundant fatty acid linked to cardiovascular events, upregulates core metabolic pathways and promotes differentiation into interleukin-9 (IL-9)-producing cells upon activation. RNA sequencing of non-activated T cells reveals that oleic acid upregulates genes encoding key enzymes responsible for cholesterol and fatty acid biosynthesis. Transcription footprint analysis links these expression changes to the differentiation toward TH9 cells, a pro-atherogenic subset. Spectral flow cytometry shows that pre-exposure to oleic acid results in a skew toward IL-9+-producing T cells upon activation. Importantly, pharmacological inhibition of either cholesterol or fatty acid biosynthesis abolishes this effect, suggesting a beneficial role for statins beyond cholesterol lowering. Taken together, oleic acid may affect inflammatory diseases like atherosclerosis by rewiring T cell metabolism.
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Affiliation(s)
- Nathalie A. Reilly
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden, the Netherlands
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Friederike Sonnet
- Leiden University Center for Infectious Diseases (LUCID), Leiden, the Netherlands
| | - Koen F. Dekkers
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden, the Netherlands
| | | | - Lucy Sinke
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden, the Netherlands
| | - Stan Hilt
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden, the Netherlands
| | - Hayat M. Suleiman
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden, the Netherlands
| | - Marten A. Hoeksema
- Department of Medical Biochemistry, Amsterdam UMC, location University of Amsterdam, Amsterdam, the Netherlands
| | - Hailiang Mei
- Sequencing Analysis Support Core, Department of Biomedical Data Sciences, Leiden, the Netherlands
| | - Erik W. van Zwet
- Medical Statistics, Department of Biomedical Data Sciences, Leiden, the Netherlands
| | - Bart Everts
- Leiden University Center for Infectious Diseases (LUCID), Leiden, the Netherlands
| | - Andreea Ioan-Facsinay
- Department of Rheumatology Leiden University Medical Center, Leiden, the Netherlands
| | - J. Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
- Netherlands Heart Institute, Utrecht, the Netherlands
| | - Bastiaan T. Heijmans
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden, the Netherlands
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3
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Cui Y, Chen J, Zhang Z, Shi H, Sun W, Yi Q. The role of AMPK in macrophage metabolism, function and polarisation. J Transl Med 2023; 21:892. [PMID: 38066566 PMCID: PMC10709986 DOI: 10.1186/s12967-023-04772-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
Abstract
AMP-activated protein kinase (AMPK) is a ubiquitous sensor of energy and nutritional status in eukaryotic cells. It plays a key role in regulating cellular energy homeostasis and multiple aspects of cell metabolism. During macrophage polarisation, AMPK not only guides the metabolic programming of macrophages, but also counter-regulates the inflammatory function of macrophages and promotes their polarisation toward the anti-inflammatory phenotype. AMPK is located at the intersection of macrophage metabolism and inflammation. The metabolic characteristics of macrophages are closely related to immune-related diseases, infectious diseases, cancer progression and immunotherapy. This review discusses the structure of AMPK and its role in the metabolism, function and polarisation of macrophages. In addition, it summarises the important role of the AMPK pathway and AMPK activators in the development of macrophage-related diseases.
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Affiliation(s)
- Yinxing Cui
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou, 646000, China
- Department of General Surgery, Dongguan Huangjiang Hospital, Dongguan, 523061, Guangdong, China
| | - Junhua Chen
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou, 646000, China
| | - Zhao Zhang
- Department of General Surgery, Dongguan Huangjiang Hospital, Dongguan, 523061, Guangdong, China
| | - Houyin Shi
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Weichao Sun
- Department of Bone Joint and Bone Oncology, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China.
- The Central Laboratory, Shenzhen Second People's Hospital, Shenzhen, 518035, Guangdong, China.
| | - Qian Yi
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou, 646000, China.
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4
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Phair IR, Nisr RB, Howden AJM, Sovakova M, Alqurashi N, Foretz M, Lamont D, Viollet B, Rena G. AMPK integrates metabolite and kinase-based immunometabolic control in macrophages. Mol Metab 2023; 68:101661. [PMID: 36586434 PMCID: PMC9842865 DOI: 10.1016/j.molmet.2022.101661] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 11/25/2022] [Accepted: 12/16/2022] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE Previous mechanistic studies on immunometabolism have focused on metabolite-based paradigms of regulation, such as itaconate. Here, we, demonstrate integration of metabolite and kinase-based immunometabolic control by AMP kinase. METHODS We combined whole cell quantitative proteomics with gene knockout of AMPKα1. RESULTS Comparing macrophages with AMPKα1 catalytic subunit deletion with wild-type, inflammatory markers are largely unchanged in unstimulated cells, but with an LPS stimulus, AMPKα1 knockout leads to a striking M1 hyperpolarisation. Deletion of AMPKα1 also resulted in increased expression of rate-limiting enzymes involved in itaconate synthesis, metabolism of glucose, arginine, prostaglandins and cholesterol. Consistent with this, we observed functional changes in prostaglandin synthesis and arginine metabolism. Selective AMPKα1 activation also unlocks additional regulation of IL-6 and IL-12 in M1 macrophages. CONCLUSIONS Together, our results validate AMPK as a pivotal immunometabolic regulator in macrophages.
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Affiliation(s)
- Iain R Phair
- Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK.
| | - Raid B Nisr
- Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK.
| | - Andrew J M Howden
- Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK.
| | - Magdalena Sovakova
- Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK.
| | - Noor Alqurashi
- Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK.
| | - Marc Foretz
- Université Paris Cité, Institut Cochin, CNRS, INSERM, F-75014 Paris, France.
| | - Douglas Lamont
- Centre for Advanced Scientific Technologies, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK.
| | - Benoit Viollet
- Université Paris Cité, Institut Cochin, CNRS, INSERM, F-75014 Paris, France.
| | - Graham Rena
- Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, UK.
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5
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Vaez H, Soraya H, Garjani A, Gholikhani T. Toll-Like Receptor 4 (TLR4) and AMPK Relevance in Cardiovascular Disease. Adv Pharm Bull 2023; 13:36-47. [PMID: 36721803 PMCID: PMC9871286 DOI: 10.34172/apb.2023.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/04/2021] [Accepted: 09/28/2021] [Indexed: 02/03/2023] Open
Abstract
Toll-like receptors (TLRs) are essential receptors of the innate immune system, playing a significant role in cardiovascular diseases. TLR4, with the highest expression among TLRs in the heart, has been investigated extensively for its critical role in different myocardial inflammatory conditions. Studies suggest that inhibition of TLR4 signaling pathways reduces inflammatory responses and even prevents additional injuries to the already damaged myocardium. Recent research results have led to a hypothesis that there may be a relation between TLR4 expression and 5' adenosine monophosphate-activated protein kinase (AMPK) signaling in various inflammatory conditions, including cardiovascular diseases. AMPK, as a cellular energy sensor, has been reported to show anti-inflammatory effects in various models of inflammatory diseases. AMPK, in addition to its physiological acts in the heart, plays an essential role in myocardial ischemia and hypoxia by activating various energy production pathways. Herein we will discuss the role of TLR4 and AMPK in cardiovascular diseases and a possible relation between TLRs and AMPK as a novel therapeutic target. In our opinion, AMPK-related TLR modulators will find application in treating different immune-mediated inflammatory disorders, especially inflammatory cardiac diseases, and present an option that will be widely used in clinical practice in the future.
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Affiliation(s)
- Haleh Vaez
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Corresponding Author: Haleh Vaez, Tel:+984133344798, Fax:+984133344798,
| | - Hamid Soraya
- Department of Pharmacology, Faculty of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Alireza Garjani
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Tooba Gholikhani
- Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Nanora Pharmaceuticals Ltd, Tabriz, Iran
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Petsouki E, Cabrera SNS, Heiss EH. AMPK and NRF2: Interactive players in the same team for cellular homeostasis? Free Radic Biol Med 2022; 190:75-93. [PMID: 35918013 DOI: 10.1016/j.freeradbiomed.2022.07.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/11/2022] [Accepted: 07/19/2022] [Indexed: 11/27/2022]
Abstract
NRF2 (Nuclear factor E2 p45-related factor 2) is a stress responsive transcription factor lending cells resilience against oxidative, xenobiotic, and also nutrient or proteotoxic insults. AMPK (AMP-activated kinase), considered as prime regulator of cellular energy homeostasis, not only tunes metabolism to provide the cell at any time with sufficient ATP or building blocks, but also controls redox balance and inflammation. Due to observed overlapping cellular responses upon AMPK or NRF2 activation and common stressors impinging on both AMPK and NRF2 signaling, it is plausible to assume that AMPK and NRF2 signaling may interdepend and cooperate to readjust cellular homeostasis. After a short introduction of the two players this narrative review paints the current picture on how AMPK and NRF2 signaling might interact on the molecular level, and highlights their possible crosstalk in selected examples of pathophysiology or bioactivity of drugs and phytochemicals.
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Affiliation(s)
- Eleni Petsouki
- Department of Pharmaceutical Sciences, Division of Pharmacognosy, University of Vienna, Faculty of Life Sciences, Althanstrasse 14, 1090 Vienna, Austria
| | - Shara Natalia Sosa Cabrera
- Department of Pharmaceutical Sciences, Division of Pharmacognosy, University of Vienna, Faculty of Life Sciences, Althanstrasse 14, 1090 Vienna, Austria; Vienna Doctoral School of Pharmaceutical, Nutritional and Sport Sciences (VDS PhaNuSpo), University of Vienna, Austria
| | - Elke H Heiss
- Department of Pharmaceutical Sciences, Division of Pharmacognosy, University of Vienna, Faculty of Life Sciences, Althanstrasse 14, 1090 Vienna, Austria.
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Zhao Y, Zhao Y, Tian Y, Zhou Y. Metformin suppresses foam cell formation, inflammation and ferroptosis via the AMPK/ERK signaling pathway in ox‑LDL‑induced THP‑1 monocytes. Exp Ther Med 2022; 24:636. [PMID: 36160906 PMCID: PMC9468789 DOI: 10.3892/etm.2022.11573] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 08/03/2022] [Indexed: 11/06/2022] Open
Abstract
Numerous studies have shown that the formation of foam cells is of vital importance in the process of atherosclerosis. The aim of the present study was to assess the effects of metformin on foam cell formation in oxidized low-density lipoprotein (ox-LDL)-treated THP-1 cells and explore its associated mechanism of action. Human monocytic THP-1 cells were pretreated with metformin for 2 h and subsequently treated with ox-LDL for 24 h. The data indicated that metformin significantly inhibited lipid accumulation in ox-LDL-treated THP-1 cells by decreasing the expression of scavenger receptor A, cluster of differentiation 36 and adipocyte enhancer-binding protein 1. In addition, metformin increased the expression levels of scavenger receptor B1 and ATP binding cassette transporter G1 and suppresses the esterification of free cholesterol. Furthermore, it markedly inhibited ferroptosis (reflected by the upregulation of glutathione peroxidase glutathione peroxidase 4 and the downregulation of Heme oxygenase-1). In addition, it caused a marked suppression in the expression levels of cysteinyl aspartate specific proteinase-1, IL-1β, NOD-like receptor protein 3, IL-18 secretion and in the levels of oxidative stress. Metformin attenuated the activation of ERK and facilitated the phosphorylation of 5' adenosine monophosphate-activated protein kinase (AMPK). Treatment of THP-1 cells with an ERK inhibitor reversed these effects, while inhibition of AMPK activity exacerbated the effects noted in ox-LDL-treated THP-1 cells. In conclusion, the present study suggested that metformin suppressed foam cell formation, inflammatory responses and inhibited ferroptosis in ox-LDL-treated macrophages via the AMPK/ERK signaling pathway.
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Affiliation(s)
- Yihan Zhao
- Department of Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
| | - Yizhen Zhao
- Department of Neurosurgery, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Yuan Tian
- Clinical Research Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550000, P.R. China
| | - Yang Zhou
- Department of Vascular Surgery, Deyang People's Hospital, Deyang, Sichuan 618000, P.R. China
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8
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Song D, Li M, Yu X, Wang Y, Fan J, Yang W, Yang L, Li H. The Molecular Pathways of Pyroptosis in Atherosclerosis. Front Cell Dev Biol 2022; 10:824165. [PMID: 35237603 PMCID: PMC8884404 DOI: 10.3389/fcell.2022.824165] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/28/2022] [Indexed: 12/11/2022] Open
Abstract
Atherosclerosis (AS) is a chronic inflammatory disease seriously endangering human health, whose occurrence and development is related to many factors. Pyroptosis is a recently identified novel programmed cell death associated with an inflammatory response and involved in the formation and progression of AS by activating different signaling pathways. Protein modifications of the sirtuin family and microRNAs (miRNAs) can directly or indirectly affect pyroptosis-related molecules. It is important to link atherosclerosis, thermogenesis and molecular modifications. This article will systematically review the molecular pathways of pyroptosis in AS, which can provide a new perspective for AS prevention and treatment.
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Affiliation(s)
- Dan Song
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Manman Li
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Xue Yu
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Yuqin Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Jiaying Fan
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Wei Yang
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Liming Yang
- Department of Pathophysiology, Harbin Medical University-Daqing, Daqing, China
- *Correspondence: Hong Li, ; Liming Yang,
| | - Hong Li
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
- *Correspondence: Hong Li, ; Liming Yang,
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Boone-Villa D, Ventura-Sobrevilla J, Aguilera-Méndez A, Jiménez-Villarreal J. The effect of adenosine monophosphate-activated protein kinase on lipolysis in adipose tissue: an historical and comprehensive review. Arch Physiol Biochem 2022; 128:7-23. [PMID: 35143739 DOI: 10.1080/13813455.2019.1661495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
CONTEXT Lipolysis is one of the most important pathways for energy management, its control in the adipose tissue (AT) is a potential therapeutic target for metabolic diseases. Adenosine Mono Phosphate-activated Protein Kinase (AMPK) is a key regulatory enzyme in lipids metabolism and a potential target for diabetes and obesity treatment. OBJECTIVE The aim of this work is to analyse the existing information on the relationship of AMPK and lipolysis in the AT. METHODS A thorough search of bibliography was performed in the databases Scopus and Web of Knowledge using the terms lipolysis, adipose tissue, and AMPK, the unrelated publications were excluded, and the documents were analysed. RESULTS Sixty-three works were found and classified in 3 categories: inhibitory effects, stimulatory effect, and diverse relationships; remarkably, the newest researches support an upregulating relationship of AMPK over lipolysis. CONCLUSION The most probable reality is that the relationship AMPK-lipolysis depends on the experimental conditions.
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Affiliation(s)
- Daniel Boone-Villa
- School of Medicine Northern Unit, Universidad Autonoma de Coahuila, Piedras Negras, México
| | | | - Asdrúbal Aguilera-Méndez
- Institute of Biological Chemistry Research, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, México
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Du Y, Zhu Y, Liu Y, Liu J, Hu C, Sun Y, Zhang D, Lv S, Cheng Y, Han H, Zhang J, Zhao Y, Zhou Y. Expression profiles of long noncoding and messenger RNAs in epicardial adipose tissue derived from patients with coronary atherosclerosis. Curr Vasc Pharmacol 2022; 20:189-200. [PMID: 35049433 DOI: 10.2174/1570161120666220114095320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/21/2021] [Accepted: 12/02/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Given its close anatomical location to the heart and its endocrine properties, attention on epicardial adipose tissue (EAT) has increased. OBJECTIVE This study investigated the expression profiles of long noncoding RNAs (lncRNAs) and messenger RNAs (mRNAs) in EAT derived from patients with coronary artery disease (CAD). METHODS EAT samples from 8 CAD and 8 non-CAD patients were obtained during open-heart surgery. The expression of lncRNAs and mRNAs in each EAT sample was investigated using microarray analysis and further verified using reverse transcription-quantitative polymerase chain reaction. RESULTS Overall, 1,093 differentially expressed mRNAs and 2,282 differentially expressed lncRNAs were identified in EAT from CAD vs non-CAD patients. Analysis using Gene Ontology and the Kyoto Encyclopedia of Genes and Genomes showed that these differentially expressed genes were mainly enriched in various inflammatory, immune, and metabolic processes. They were also involved in osteoclast differentiation, B cell receptor and adipocytokine signaling, and insulin resistance pathways. Additionally, lncRNA-mRNA and lncRNA-target pathway networks were built to identify potential core genes (e.g. Lnc-CCDC68-2:1, AC010148.1, NONHSAT104810) involved in atherosclerosis pathogenesis. CONCLUSION In summary, lncRNA and mRNA profiles in EAT were markedly different between CAD and non-CAD patients. Our study identifies several potential key genes and pathways that may participate in atherosclerosis development.
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Affiliation(s)
- Yu Du
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Yong Zhu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Yan Liu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Jinxing Liu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Chengping Hu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Yan Sun
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Dai Zhang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Sai Lv
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Yujing Cheng
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Hongya Han
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Jianwei Zhang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Yingxin Zhao
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
| | - Yujie Zhou
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing100029, China
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11
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Reilly NA, Lutgens E, Kuiper J, Heijmans BT, Jukema JW. Effects of fatty acids on T cell function: role in atherosclerosis. Nat Rev Cardiol 2021; 18:824-837. [PMID: 34253911 DOI: 10.1038/s41569-021-00582-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/01/2021] [Indexed: 01/08/2023]
Abstract
T cells are among the most common cell types present in atherosclerotic plaques and are increasingly being recognized as a central mediator in atherosclerosis development and progression. At the same time, triglycerides and fatty acids have re-emerged as crucial risk factors for atherosclerosis. Triglycerides and fatty acids are important components of the milieu to which the T cell is exposed from the circulation to the plaque, and increasing evidence shows that fatty acids influence T cell function. In this Review, we discuss the effects of fatty acids on four components of the T cell response - metabolism, activation, proliferation and polarization - and the influence of these changes on the pathogenesis of atherosclerosis. We also discuss how quiescent T cells can undergo a type of metabolic reprogramming induced by exposure to fatty acids in the circulation that influences the subsequent functions of T cells after activation, such as in atherosclerotic plaques.
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Affiliation(s)
- Nathalie A Reilly
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, Netherlands
- Department of Cardiology, Leiden University Medical Centre, Leiden, Netherlands
| | - Esther Lutgens
- Department of Medical Biochemistry, Amsterdam University Medical Centre, Amsterdam, Netherlands
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians Universität, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany
| | - Johan Kuiper
- Leiden Academic Centre for Drug Research, Division of Biotherapeutics, Leiden University, Leiden, Netherlands
| | - Bastiaan T Heijmans
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, Netherlands
| | - J Wouter Jukema
- Department of Cardiology, Leiden University Medical Centre, Leiden, Netherlands.
- Netherlands Heart Institute, Utrecht, Netherlands.
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12
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Paik S, Jo EK. An Interplay Between Autophagy and Immunometabolism for Host Defense Against Mycobacterial Infection. Front Immunol 2020; 11:603951. [PMID: 33262773 PMCID: PMC7688515 DOI: 10.3389/fimmu.2020.603951] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/16/2020] [Indexed: 12/15/2022] Open
Abstract
Autophagy, an intracellular catabolic pathway featuring lysosomal degradation, is a central component of the host immune defense against various infections including Mycobacterium tuberculosis (Mtb), the pathogen that causes tuberculosis. Mtb can evade the autophagic defense and drive immunometabolic remodeling of host phagocytes. Co-regulation of the autophagic and metabolic pathways may play a pivotal role in shaping the innate immune defense and inflammation during Mtb infection. Two principal metabolic sensors, AMP-activated protein kinase (AMPK) and mammalian target of rapamycin (mTOR) kinase, function together to control the autophagy and immunometabolism that coordinate the anti-mycobacterial immune defense. Here, we discuss our current understanding of the interplay between autophagy and immunometabolism in terms of combating intracellular Mtb, and how AMPK-mTOR signaling regulates antibacterial autophagy in terms of Mtb infection. We describe several autophagy-targeting agents that promote host antimicrobial defenses by regulating the AMPK-mTOR axis. A better understanding of the crosstalk between immunometabolism and autophagy, both of which are involved in host defense, is crucial for the development of innovative targeted therapies for tuberculosis.
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Affiliation(s)
- Seungwha Paik
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon, South Korea.,Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon, South Korea
| | - Eun-Kyeong Jo
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon, South Korea.,Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon, South Korea
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13
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LeBlond ND, Ghorbani P, O'Dwyer C, Ambursley N, Nunes JRC, Smith TKT, Trzaskalski NA, Mulvihill EE, Viollet B, Foretz M, Fullerton MD. Myeloid deletion and therapeutic activation of AMPK do not alter atherosclerosis in male or female mice. J Lipid Res 2020; 61:1697-1706. [PMID: 32978273 PMCID: PMC7707174 DOI: 10.1194/jlr.ra120001040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The dysregulation of myeloid-derived cell metabolism can drive atherosclerosis. AMP-activated protein kinase (AMPK) controls various aspects of macrophage dynamics and lipid homeostasis, which are important during atherogenesis. Using LysM-Cre to drive the deletion of both the α1 and α2 catalytic subunits (MacKO), we aimed to clarify the role of myeloid-specific AMPK signaling in male and female mice made acutely atherosclerotic by injection of AAV vector encoding a gain-of-function mutant PCSK9 (PCSK9-AAV) and WD feeding. After 6 weeks of WD feeding, mice received a daily injection of either the AMPK activator A-769662 or a vehicle control for an additional 6 weeks. Following this (12 weeks total), we assessed myeloid cell populations and differences between genotype or sex were not observed. Similarly, aortic sinus plaque size, lipid staining, and necrotic area did not differ in male and female MacKO mice compared with their littermate floxed controls. Moreover, therapeutic intervention with A-769662 showed no treatment effect. There were also no observable differences in the amount of circulating total cholesterol or triglyceride, and only minor differences in the levels of inflammatory cytokines between groups. Finally, CD68+ area and markers of autophagy showed no effect of either lacking AMPK signaling or AMPK activation. Our data suggest that while defined roles for each catalytic AMPK subunit have been identified, complete deletion of myeloid AMPK signaling does not significantly impact atherosclerosis. Additionally, these findings suggest that intervention with the first-generation AMPK activator A-769662 is not able to stem the progression of atherosclerosis.
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Affiliation(s)
- Nicholas D LeBlond
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Peyman Ghorbani
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Conor O'Dwyer
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Nia Ambursley
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Julia R C Nunes
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Tyler K T Smith
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada
| | - Natasha A Trzaskalski
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Erin E Mulvihill
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Benoit Viollet
- Université de Paris, Institut Cochin, CNRS, INSERM, Paris, France
| | - Marc Foretz
- Université de Paris, Institut Cochin, CNRS, INSERM, Paris, France
| | - Morgan D Fullerton
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; Centre for Infection, Immunity and Inflammation, Ottawa, Ontario, Canada; Centre for Catalysis Research and Innovation, Ottawa, Ontario, Canada.
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14
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Aguirre-Joya JA, Chacón-Garza LE, Valdivia-Najár G, Arredondo-Valdés R, Castro-López C, Ventura-Sobrevilla JM, Aguilar-Gonzáles CN, Boone-Villa D. Nanosystems of plant-based pigments and its relationship with oxidative stress. Food Chem Toxicol 2020; 143:111433. [PMID: 32569796 DOI: 10.1016/j.fct.2020.111433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/07/2020] [Accepted: 05/10/2020] [Indexed: 12/18/2022]
Abstract
Plant-based pigments are widely present in nature, they are classified depending on their chemical structure as tetrapyrroles, carotenoids, polyphenolic compounds, and alkaloids and are extensively used in medicine, food industry, clothes, and others. Recently they have been investigated due to their role in the areas of food processing, food safety and quality, packaging, and nutrition. Many studies indicate a relationship between bioactive pigments and Non-Communicable Diseases derived from oxidative stress. Their biological applications can help in preventing oxidative injuries in the cell caused by oxygen and nitrogen reactive species. Those pigments are easily degraded by light, oxygen, temperature, pH conditions, among others. Nanotechnology offers the possibility to protect bioactive ingredients and increase its bioavailability after oral administration. Safety to humans (mainly evaluated from toxicity data) is the first concern for these products. In the present work, we present a comprehensive outlook of the most important plant-based pigments used as food colorants, the principal nanotechnology systems prepared with them, and the relationship of these compounds with the oxidative stress and related Non-Communicable Disease.
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Affiliation(s)
- Jorge A Aguirre-Joya
- School of Health Science, Universidad Autonoma de Coahuila, Unidad Norte, Piedras Negras, Coahuila, Mexico
| | - Luis E Chacón-Garza
- School of Health Science, Universidad Autonoma de Coahuila, Unidad Norte, Piedras Negras, Coahuila, Mexico
| | - Guillermo Valdivia-Najár
- CONACYT - Department of Food Technology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Zapopan, Jalisco, Mexico
| | - Roberto Arredondo-Valdés
- Nanobioscience Group, Chemistry School, Universidad Autonoma de Coahuila, Blvd. V. Carranza e Ing. J. Cardenas V., Saltillo, Coahuila, Mexico; Research Group of Chemist Pharmacist Biologist, Chemistry School, Universidad Autonoma de Coahuila, Blvd. V. Carranza e Ing. J. Cardenas V., Saltillo, Coahuila, Mexico
| | - Cecilia Castro-López
- Laboratory of Chemistry and Biotechnology of Dairy Products, Research Centre in Food & Development, A.C (CIAD, A.C.), Gustavo Enrique Astiazarán Rosas Highway, Hermosillo, Sonora, Mexico
| | | | - Cristóbal N Aguilar-Gonzáles
- Food Research Group, Chemistry School, Universidad Autonoma de Coahuila, Blvd. V. Carranza e Ing. J. Cardenas V., Saltillo, Coahuila, Mexico
| | - Daniel Boone-Villa
- School of Medicine North Unit, Universidad Autonoma de Coahuila, Unidad Norte, Piedras Negras, Coahuila, Mexico.
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15
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Tang T, Duan Z, Xu J, Liang J, Zhang S, Zhang H, Zhang X, Wang Y. Pterostilbene reduces endothelial cell injury in vascular arterial walls by regulating the Nrf2-mediated AMPK/STAT3 pathway in an atherosclerosis rat model. Exp Ther Med 2019; 19:45-52. [PMID: 31853271 PMCID: PMC6909712 DOI: 10.3892/etm.2019.8211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 08/07/2019] [Indexed: 12/16/2022] Open
Abstract
Endothelial cell injury in vascular arterial walls is a hallmark of atherosclerosis. Pterostilbene (Pts) has been shown to have an anti-oxidative and anti-apoptotic effect in numerous diseases via regulation of intracellular metabolism. The purpose of this study was to investigate the protective effect and possible mechanism of Pts against endothelial cell apoptosis in an atherosclerotic rat model. An atherosclerotic rat model was established using a high-fat, high glucose and high cholesterol diet. The effects of Pts on apoptosis and oxidative stress injury were measured using atherosclerotic lesion analysis, western blot analysis, hematoxylin and eosin straining, TUNEL assay and immunohistochemistry. In vivo results in an atherosclerosis rat model showed that Pts administration decreased the inflammatory response. Pts administration attenuated atherogenesis, reduced aortic plaque size, reduced macrophage infiltration, and suppressed oxidative stress and apoptosis of vascular arterial walls. In vitro assays using cultured human endothelial cells showed that Pts administration decreased hydrogen peroxide-induced cytotoxicity, oxidative stress injury and apoptosis via nuclear factor erythroid 2-related factor 2 (Nrf2) activation in endothelial cells. Additionally, Pts administration increased the expression level of Nrf2 and 5′ adenosine monophosphate-activated protein kinase (AMPK), and the phosphorylation level of AMPK and decreased signal transducer and activator of transcription 3 (STAT3) expression in these cells. Furthermore, knockdown of Nrf2 prevented Pts-decrease oxidative stress injury and apoptosis. In conclusion, these data suggest that Pts can protect endothelial cells in the vascular arterial walls against atherosclerosis-induced injury through regulation of the Nrf2-mediated AMPK/STAT3 pathway.
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Affiliation(s)
- Tieyu Tang
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Zuowei Duan
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Jiang Xu
- Department of Neurology, Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Jingyan Liang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China.,Department of Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Yangzhou, Jiangsu 225001, P.R. China
| | - Shuai Zhang
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Haifeng Zhang
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Xinjiang Zhang
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Yingge Wang
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China.,Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
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16
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Role of Proinflammatory Cytokines in Feedback Modulation of Circadian Clock Gene Rhythms by Saturated Fatty Acids. Sci Rep 2019; 9:8909. [PMID: 31222133 PMCID: PMC6586641 DOI: 10.1038/s41598-019-45322-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 06/04/2019] [Indexed: 01/03/2023] Open
Abstract
Proinflammatory signaling cascades have been implicated in the mechanism by which high fat diet (HFD) and saturated fatty acids (SFA) modulate fundamental circadian properties of peripheral clocks. Because the cytokines TNFα and IL-6 are key signals in HFD- and SFA-induced proinflammatory responses that ultimately lead to systemic insulin resistance, the present study examined the roles of these cytokines in the feedback modulation of peripheral circadian clocks by the proinflammatory SFA, palmitate. IL-6 and TNFα secretion in Bmal1-dLuc fibroblast cultures was increased during palmitate treatment although the time course and amplitude of the inductive response differed between these cytokines. Similar to the time-dependent phase shifts observed in response to palmitate, treatment with IL-6 or with the low dose (0.1 ng/ml) of TNFα at hour 12 (i.e., after forskolin synchronization) induced phase advances of fibroblast Bmal1-dLuc rhythms. In complementary experiments, treatment with neutralizing antibodies against these proinflammatory cytokines or their receptors to inhibit of IL-6- or TNFα-mediated signaling repressed palmitate-induced phase shifts of the fibroblast clock. These studies suggest that TNFα, IL-6 and other proinflammatory cytokines may mediate the feedback modulation of peripheral circadian clocks by SFA-induced inflammatory signaling.
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17
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Koshibu M, Mori Y, Saito T, Kushima H, Hiromura M, Terasaki M, Takada M, Fukui T, Hirano T. Antiatherogenic effects of liraglutide in hyperglycemic apolipoprotein E-null mice via AMP-activated protein kinase-independent mechanisms. Am J Physiol Endocrinol Metab 2019; 316:E895-E907. [PMID: 30860874 DOI: 10.1152/ajpendo.00511.2018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Glucagon-like peptide-1 receptor agonists (GLP-1RAs) exert potent glucose-lowering effects without increasing risks for hypoglycemia and weight gain. Preclinical studies have demonstrated direct antiatherogenic effects of GLP-1RAs in normoglycemic animal models; however, the underlying mechanisms in hyperglycemic conditions have not been fully clarified. Here we aimed to elucidate the role of AMP-activated protein kinase (AMPK) in antiatherogenic effects of GLP-1RAs in hyperglycemic mice. Streptozotocin-induced hyperglycemic apolipoprotein E-null mice were treated with vehicle, low-dose liraglutide (17 nmol·kg-1·day-1), or high-dose liraglutide (107 nmol·kg-1·day-1) in experiment 1 and the AMPK inhibitor dorsomorphin, dorsomorphin + low-dose liraglutide, or dorsomorphin + high-dose liraglutide in experiment 2. Four weeks after treatment, aortas were collected to assess atherosclerosis. In experiment 1, metabolic parameters were similar among the groups. Assessment of atherosclerosis revealed that high-dose liraglutide treatments reduced lipid deposition on the aortic surface and plaque volume and intraplaque macrophage accumulation at the aortic sinus. In experiment 2, liraglutide-induced AMPK phosphorylation in the aorta was abolished by dorsomorphin; however, the antiatherogenic effects of high-dose liraglutide were preserved. In cultured human umbilical vein endothelial cells, liraglutide suppressed tumor necrosis factor-induced expression of proatherogenic molecules; these effects were maintained under small interfering RNA-mediated knockdown of AMPKα1 and in the presence of dorsomorphin. Conversely, in human monocytic U937 cells, the anti-inflammatory effects of liraglutide were abolished by dorsomorphin. In conclusion, liraglutide exerted AMPK-independent antiatherogenic effects in hyperlipidemic mice with streptozotocin-induced hyperglycemia, with the possible involvement of AMPK-independent suppression of proatherogenic molecules in vascular endothelial cells.
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Affiliation(s)
- Masakazu Koshibu
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo , Japan
| | - Yusaku Mori
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo , Japan
| | - Tomomi Saito
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo , Japan
| | - Hideki Kushima
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo , Japan
| | - Munenori Hiromura
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo , Japan
| | - Michishige Terasaki
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo , Japan
| | - Michiya Takada
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo , Japan
| | - Tomoyasu Fukui
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo , Japan
| | - Tsutomu Hirano
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo , Japan
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18
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Park J, Joe Y, Ryter SW, Surh YJ, Chung HT. Similarities and Distinctions in the Effects of Metformin and Carbon Monoxide in Immunometabolism. Mol Cells 2019; 42:292-300. [PMID: 31091555 PMCID: PMC6530647 DOI: 10.14348/molcells.2019.0016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/14/2019] [Accepted: 04/18/2019] [Indexed: 12/31/2022] Open
Abstract
Immunometabolism, defined as the interaction of metabolic pathways with the immune system, influences the pathogenesis of metabolic diseases. Metformin and carbon monoxide (CO) are two pharmacological agents known to ameliorate metabolic disorders. There are notable similarities and differences in the reported effects of metformin and CO on immunometabolism. Metformin, an anti-diabetes drug, has positive effects on metabolism and can exert anti-inflammatory and anti-cancer effects via adenosine monophosphate-activated protein kinase (AMPK)-dependent and AMPK-independent mechanisms. CO, an endogenous product of heme oxygenase-1 (HO-1), can exert anti-inflammatory and antioxidant effects at low concentration. CO can confer cytoprotection in metabolic disorders and cancer via selective activation of the protein kinase R-like endoplasmic reticulum (ER) kinase (PERK) pathway. Both metformin and CO can induce mitochondrial stress to produce a mild elevation of mitochondrial ROS (mtROS) by distinct mechanisms. Metformin inhibits complex I of the mitochondrial electron transport chain (ETC), while CO inhibits ETC complex IV. Both metformin and CO can differentially induce several protein factors, including fibroblast growth factor 21 (FGF21) and sestrin2 (SESN2), which maintain metabolic homeostasis; nuclear factor erythroid 2-related factor 2 (Nrf2), a master regulator of the antioxidant response; and REDD1, which exhibits an anticancer effect. However, metformin and CO regulate these effects via different pathways. Metformin stimulates p53- and AMPK-dependent pathways whereas CO can selectively trigger the PERK-dependent signaling pathway. Although further studies are needed to identify the mechanistic differences between metformin and CO, pharmacological application of these agents may represent useful strategies to ameliorate metabolic diseases associated with altered immunometabolism.
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Affiliation(s)
- Jeongmin Park
- Department of Biological Sciences, University of Ulsan, Ulsan 44610,
Korea
| | - Yeonsoo Joe
- Department of Biological Sciences, University of Ulsan, Ulsan 44610,
Korea
| | - Stefan W. Ryter
- Joan and Sanford I. Weill Department of Medicine, and Division of Pulmonary and Critical Care Medicine, Weill Cornell Medical Center, NY 10065,
USA
| | - Young-Joon Surh
- Tumor microenvironment Global Core Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08733,
Korea
| | - Hun Taeg Chung
- Department of Biological Sciences, University of Ulsan, Ulsan 44610,
Korea
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19
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Ye G, Gao H, Wang Z, Lin Y, Liao X, Zhang H, Chi Y, Zhu H, Dong S. PPARα and PPARγ activation attenuates total free fatty acid and triglyceride accumulation in macrophages via the inhibition of Fatp1 expression. Cell Death Dis 2019; 10:39. [PMID: 30674874 PMCID: PMC6426939 DOI: 10.1038/s41419-018-1135-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/21/2018] [Accepted: 09/21/2018] [Indexed: 12/12/2022]
Abstract
Lipid accumulation in macrophages interacts with microenvironment signals and accelerates diabetic atherosclerosis. However, the molecular mechanisms by which macrophage metabolism interacts with microenvironment signals during lipid accumulation are not clearly understood. Accordingly, an untargeted metabolomics approach was employed to characterize the metabolic reprogramming, and to identify potential regulatory targets related to lipid accumulation in macrophages treated with oleate, an important nutrient. The metabolomics approach revealed that multiple metabolic pathways were significantly disturbed in oleate-treated macrophages. We discovered that amino acids, nucleosides, lactate, monoacylglycerols, total free fatty acids (FFAs), and triglycerides (TGs) accumulated in oleate-treated macrophages, but these effects were effectively attenuated or even abolished by resveratrol. Notably, 1-monooleoylglycerol and 2-monooleoylglycerol showed the largest fold changes in the levels among the differential metabolites. Subsequently, we found that oleate triggered total FFA and TG accumulation in macrophages by accelerating FFA influx through the activation of Fatp1 expression, but this effect was attenuated by resveratrol via the activation of PPARα and PPARγ signaling. We verified that the activation of PPARα and PPARγ by WY14643 and pioglitazone, respectively, attenuated oleate triggered total FFA and TG accumulation in macrophages by repressing FFA import via the suppression of Fatp1 expression. Furthermore, the inhibition of Fatp1 by tumor necrosis factor α alleviated oleate-induced total FFA and TG accumulation in macrophages. This study provided the first demonstration that accumulation of amino acids, nucleosides, lactate, monoacylglycerols, total FFAs, and TGs in oleate-treated macrophages is effectively attenuated or even abolished by resveratrol, and that the activation of PPARα and PPARγ attenuates oleate-induced total FFA and TG accumulation via suppression of Fatp1 expression in macrophages. Therapeutic strategies aim to activate PPAR signaling, and to repress FFA import and triglyceride synthesis are promising approaches to reduce the risk of obesity, diabetes and atherosclerosis.
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Affiliation(s)
- Guozhu Ye
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Han Gao
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Zhichao Wang
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Yi Lin
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Xu Liao
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Han Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Yulang Chi
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Huimin Zhu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Sijun Dong
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China.
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China.
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20
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Leber A, Hontecillas R, Zoccoli-Rodriguez V, Bassaganya-Riera J. Activation of LANCL2 by BT-11 Ameliorates IBD by Supporting Regulatory T Cell Stability Through Immunometabolic Mechanisms. Inflamm Bowel Dis 2018; 24:1978-1991. [PMID: 29718324 PMCID: PMC6241665 DOI: 10.1093/ibd/izy167] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Inflammatory bowel disease (IBD) afflicts 5 million people and is increasing in prevalence. There is an unmet clinical need for safer and effective treatments for IBD. The BT-11 is a small molecule oral therapeutic that ameliorates IBD by targeting lanthionine synthetase C-like 2 (LANCL2) and has a benign safety profile in rats. METHODS Mdr1a-/-, dextran sodium sulphate , and adoptive transfer mouse models of colitis were employed to validate therapeutic efficacy and characterize the mechanisms of therapeutic efficacy of BT-11. In vitro cultures of CD4+ T cell differentiation and human peripheral blood mononuclear cells from Crohn's disease patients were used to determine its potential for human translation. RESULTS BT-11 reduces inflammation in multiple mouse models of IBD. Oral treatment with BT-11 increases the numbers of lamina propria regulatory T cells (Tregs) in a LANCL2-dependent manner. In vitro, BT-11 increases the differentiation in Treg phenotypes, the upregulation of genes implicated in Treg cell stability, and conditions Treg cells to elicit greater suppressive actions. These immunoregulatory effects are intertwined with the ability of BT-11 to regulate late stage glycolysis and tricarboxylic acid cycle. Immunometabolic mechanistic findings translate into human peripheral blood mononuclear cells from healthy individuals and Crohn's disease patients. CONCLUSIONS BT-11 is a safe, efficacious oral therapeutic for IBD with a human translatable mechanism of action that involves activation of LANCL2, immunometabolic modulation of CD4+ T cell subsets leading to stable regulatory phenotypes in the colonic LP.
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Affiliation(s)
| | | | | | - Josep Bassaganya-Riera
- Landos Biopharma Inc, Blacksburg, VA,Correspondence address: Dr Josep Bassaganya-Riera Landos Biopharma Inc, 1800 Kraft Drive, Suite 216 Blacksburg VA 24060. E-mail:
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21
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Li J, Dong JZ, Ren YL, Zhu JJ, Cao JN, Zhang J, Pan LL. Luteolin decreases atherosclerosis in LDL receptor-deficient mice via a mechanism including decreasing AMPK-SIRT1 signaling in macrophages. Exp Ther Med 2018; 16:2593-2599. [PMID: 30186491 DOI: 10.3892/etm.2018.6499] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 09/29/2017] [Indexed: 12/25/2022] Open
Abstract
Lipid metabolism dysfunction and inflammatory infiltration into arterial walls are associated with the initiation and progression of atherosclerosis. Luteolin has been reported to possess anti-inflammatory actions and protect against tumor necrosis factor-α (TNF-α)-induced vascular inflammation, monocyte adhesion to endothelial cells and the formation of lipid-laden macrophages in vitro. However, the role of luteolin in atherosclerosis and the associated vascular inflammatory remains to be elucidated. The aim of the present study was to investigate the effects of luteolin on plaque development, lipid accumulation and macrophage inflammation low-density lipoprotein receptor-deficient (LDLR-/-) mice with atherosclerosis, as well as the underlying mechanisms in ox-induced THP-1-derived macrophages. Firstly, 9-week-old male C57BL/6 mice were fed a standard chow diet, western diet or western diet supplemented with 100 mg/kg luteolin for 14 weeks. The results of histological staining revealed that 100 mg/kg dietary luteolin ameliorated western diet-induced atherosclerotic plaque development and lipid accumulation in the abdominal aorta. Furthermore, total cholesterol, triglyceride and LDL-cholesterol levels were decreased in the plasma of western diet + luteolin mice compared with those fed with a western diet alone. Quantitative polymerase chain reaction analysis revealed that dietary luteolin inhibited the expression of cluster of differentiation 68, macrophage chemoattractant protein 2 and inflammatory cytokines, including interleukin-6 (IL-6) and TNF-α. Mechanistically, luteolin decreased the total cholesterol level as well as macrophage chemokine and inflammatory cytokine expression in THP-1-derived macrophages via AMP-activated protein kinase (AMPK)-Sirtuin (SIRT)1 signaling following induction with oxidized low-density lipoprotein. The results of the present study suggest that luteolin prevents plaque development and lipid accumulation in the abdominal aorta by decreasing macrophage inflammation during atherosclerosis, which is mediated by mechanisms including AMPK-SIRT1 signaling.
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Affiliation(s)
- Jiang Li
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing 100029, P.R. China
| | - Jian-Zeng Dong
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing 100029, P.R. China
| | - Yan-Long Ren
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing 100029, P.R. China
| | - Jia-Jia Zhu
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing 100029, P.R. China
| | - Jia-Ning Cao
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing 100029, P.R. China
| | - Jing Zhang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing 100029, P.R. China
| | - Li-Li Pan
- Department of Rheumatology, Beijing An Zhen Hospital, Capital Medical University, Beijing 100029, P.R. China
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22
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Gao F, Chen J, Zhu H. A potential strategy for treating atherosclerosis: improving endothelial function via AMP-activated protein kinase. SCIENCE CHINA-LIFE SCIENCES 2018; 61:1024-1029. [PMID: 29675553 DOI: 10.1007/s11427-017-9285-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 03/12/2018] [Indexed: 12/11/2022]
Abstract
Endothelial dysfunction is caused by many factors, such as dyslipidemia, endoplasmic reticulum (ER) stress, and inflammation. It has been demonstrated that endothelial dysfunction is the initial process of atherosclerosis. AMP-activated protein kinase (AMPK) is an important metabolic switch that plays a crucial role in lipid metabolism and inflammation. However, recent evidence indicates that AMPK could be a target for atherosclerosis by improving endothelial function. For instance, activation of AMPK inhibits the production of reactive oxygen species induced by mitochondrial dysfunction, ER stress, and NADPH oxidase. Moreover, activation of AMPK inhibits the production of pro-inflammatory factors induced by dyslipidemia and hyperglycemia and restrains production of perivascular adipose tissue-released adipokines. AMPK activation prevents endothelial dysfunction by increasing the bioavailability of nitric oxide. Therefore, we focused on the primary risk factors involved in endothelial dysfunction, and summarize the features of AMPK in the protection of endothelial function, by providing signaling pathways thought to be important in the pathological progress of risk factors.
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Affiliation(s)
- Feng Gao
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Jiemei Chen
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Haibo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
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23
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Xiong M, Huang Y, Liu Y, Huang M, Song G, Ming Q, Ma X, Yang J, Deng S, Wen Y, Shen J, Liu QH, Zhao P, Yang X. Antidiabetic Activity of Ergosterol from Pleurotus Ostreatus in KK-A y Mice with Spontaneous Type 2 Diabetes Mellitus. Mol Nutr Food Res 2018; 62. [PMID: 29080247 DOI: 10.1002/mnfr.201700444] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 10/11/2017] [Indexed: 01/10/2023]
Abstract
SCOPE The number of people with diabetes is increasing rapidly in the world. In the present study, the hypoglycemic activity and potential mechanism of ergosterol (ERG), a phytosterol derived from the edible mushroom Pleurotus ostreatus are investigated in vitro and in vivo. METHODS AND RESULTS ERG is isolated from Pleurotus ostreatus and identified by NMR spectra. The effects of ERG on the glucose uptake, glucose transporter 4 (GLUT4) translocation, GLUT4 expression, and the phosphorylation of AMPK, Akt and PKC in L6 cells are evaluated. ERG enhances glucose uptake and displays a GLUT4 translocation activity with up-regulating GLUT4 expression and phosphorylation of Akt and PKC in L6 cells. In vivo, antidiabetic activity of ERG is examined. The phosphorylation of Akt and PKC in different tissues from KK-Ay mice is assessed. ERG significantly improves insulin resistance and blood lipid indices while reducing fasting blood glucose levels and protecting pancreas and liver in the mice. Moreover, the phosphorylation of Akt and PKC is increased in different tissues. CONCLUSION The results suggest that ERG may be a potential hypoglycemic agent for the treatment of T2DM with the probable mechanism of stimulating GLUT4 translocation and expression modulated by the PI3K/Akt pathway and PKC pathway.
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Affiliation(s)
- Mingrui Xiong
- School of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yun Huang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yajing Liu
- School of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Mi Huang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Guanjun Song
- School of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Qian Ming
- School of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Xinhua Ma
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Jie Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Shihao Deng
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yanzhang Wen
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Jinhua Shen
- School of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Qing-Hua Liu
- School of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Ping Zhao
- School of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Xinzhou Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China.,National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan, China
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24
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LeBlond ND, Fullerton MD. Methods to Evaluate AMPK Regulation of Macrophage Cholesterol Homeostasis. Methods Mol Biol 2018; 1732:477-493. [PMID: 29480494 DOI: 10.1007/978-1-4939-7598-3_30] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Macrophages are a driving force in the development and progression of atherosclerosis, a chronic condition that can lead to cardiovascular disease. In this chapter we describe methods that monitor macrophage cholesterol homeostasis such as cholesterol synthesis, uptake, and efflux, all with the use of AMPK activators and potential genetic models that could help shed light on the role of this metabolic regulator in atherosclerosis and other chronic diseases.
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Affiliation(s)
- Nicholas D LeBlond
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Morgan D Fullerton
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada.
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25
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Lee J, Wan J, Lee L, Peng C, Xie H, Lee C. Study of the NLRP3 inflammasome component genes and downstream cytokines in patients with type 2 diabetes mellitus with carotid atherosclerosis. Lipids Health Dis 2017; 16:217. [PMID: 29151018 PMCID: PMC5694162 DOI: 10.1186/s12944-017-0595-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 10/19/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND A role for the NLRP3 inflammasome has been reported in various diseases, such as diabetes mellitus, atherosclerosis (AS), nephropathy, rheumatism, and others, although limited information is available concerning the role of the NLRP3 inflammasome, interleukin-1β (IL-1β) and interleukin-18 (IL-18) in patients with type 2 diabetes mellitus (T2DM) and carotid atherosclerosis (CAS). Therefore, this cross-sectional study investigated these inflammatory components in patients with T2DM complicated with carotid atherosclerosis (T2DM + CAS). METHODS A total of 107 inpatients or outpatients were included,including 81 T2DM + CAS patients and 26 T2DM patients. Patients with T2DM or T2DM + CAS were recruited to compare the expression levels of NLRP3 pathway genes (NLRP3, ASC and caspase-1 mRNA) and the serum IL-1β and IL-18 concentrations. In the T2DM + CAS group, patients with thickened intima media thickness (IMT) and those with plaques were compared, and the correlation of the 5 variables with Crouse scores were analyzed. RESULTS The expression of NLRP3 pathway genes except caspase-1 was significantly higher in patients with T2DM and CAS compared to T2DM patients. Serum IL-1β and IL-18 concentrations shows no difference between the T2DM + CAS and T2DM group. In the T2DM + CAS group, the expression levels of the three inflammasome genes and IL-18 were increased in patients with thickened IMT compared to those with the plaque. All of the above factors negatively correlated with Crouse scores. CONCLUSION NLRP3 inflammasome pathway activity is significantly increased in patients with AS and T2DM at the early stage of plaque formation.
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Affiliation(s)
- Junli Lee
- Department of Clinical Laboratory, The second clinical medical college of yangtze university, Ren Min Road 1#, Jingzhou, Hubei, 434020, China
| | - Jing Wan
- Department of Endocrinology, The second clinical medical college of yangtze university, Jingzhou, China
| | - Linyun Lee
- Department of Clinical Laboratory, The second clinical medical college of yangtze university, Ren Min Road 1#, Jingzhou, Hubei, 434020, China
| | - Changhua Peng
- Department of Clinical Laboratory, The second clinical medical college of yangtze university, Ren Min Road 1#, Jingzhou, Hubei, 434020, China
| | - Hailong Xie
- Department of Clinical Medicine, Graduate School of Yangtze University, Jingzhou, China
| | - Chengbin Lee
- Department of Clinical Laboratory, The second clinical medical college of yangtze university, Ren Min Road 1#, Jingzhou, Hubei, 434020, China.
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26
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Hotamisligil GS. Foundations of Immunometabolism and Implications for Metabolic Health and Disease. Immunity 2017; 47:406-420. [PMID: 28930657 DOI: 10.1016/j.immuni.2017.08.009] [Citation(s) in RCA: 282] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/06/2017] [Accepted: 08/16/2017] [Indexed: 02/06/2023]
Abstract
Highly ordered interactions between immune and metabolic responses are evolutionarily conserved and paramount for tissue and organismal health. Disruption of these interactions underlies the emergence of many pathologies, particularly chronic non-communicable diseases such as obesity and diabetes. Here, we examine decades of research identifying the complex immunometabolic signaling networks and the cellular and molecular events that occur in the setting of altered nutrient and energy exposures and offer a historical perspective. Furthermore, we describe recent advances such as the discovery that a broad complement of immune cells play a role in immunometabolism and the emerging evidence that nutrients and metabolites modulate inflammatory pathways. Lastly, we discuss how this work may eventually lead to tangible therapeutic advancements to promote health.
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Affiliation(s)
- Gökhan S Hotamisligil
- Department of Genetics and Complex Diseases and Sabri Ülker Center, Harvard T.H. Chan School of Public Health, Broad Institute of Harvard and MIT, Boston, MA 02115, USA.
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27
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Zhang M, Wang S, Pan Z, Ou T, Ma J, Liu H, Li R, Yang P, Han W, Guan S, Hou X, Fang W, Qu X. AMPK/NF-κB signaling pathway regulated by ghrelin participates in the regulation of HUVEC and THP1 Inflammation. Mol Cell Biochem 2017; 437:45-53. [DOI: 10.1007/s11010-017-3094-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/08/2017] [Indexed: 12/18/2022]
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28
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Kim TS, Shin YH, Lee HM, Kim JK, Choe JH, Jang JC, Um S, Jin HS, Komatsu M, Cha GH, Chae HJ, Oh DC, Jo EK. Ohmyungsamycins promote antimicrobial responses through autophagy activation via AMP-activated protein kinase pathway. Sci Rep 2017; 7:3431. [PMID: 28611371 PMCID: PMC5469788 DOI: 10.1038/s41598-017-03477-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 04/28/2017] [Indexed: 12/14/2022] Open
Abstract
The induction of host cell autophagy by various autophagy inducers contributes to the antimicrobial host defense against Mycobacterium tuberculosis (Mtb), a major pathogenic strain that causes human tuberculosis. In this study, we present a role for the newly identified cyclic peptides ohmyungsamycins (OMS) A and B in the antimicrobial responses against Mtb infections by activating autophagy in murine bone marrow-derived macrophages (BMDMs). OMS robustly activated autophagy, which was essentially required for the colocalization of LC3 autophagosomes with bacterial phagosomes and antimicrobial responses against Mtb in BMDMs. Using a Drosophila melanogaster–Mycobacterium marinum infection model, we showed that OMS-A-induced autophagy contributed to the increased survival of infected flies and the limitation of bacterial load. We further showed that OMS triggered AMP-activated protein kinase (AMPK) activation, which was required for OMS-mediated phagosome maturation and antimicrobial responses against Mtb. Moreover, treating BMDMs with OMS led to dose-dependent inhibition of macrophage inflammatory responses, which was also dependent on AMPK activation. Collectively, these data show that OMS is a promising candidate for new anti-mycobacterial therapeutics by activating antibacterial autophagy via AMPK-dependent signaling and suppressing excessive inflammation during Mtb infections.
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Affiliation(s)
- Tae Sung Kim
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon, 35015, South Korea.,Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, South Korea
| | - Yern-Hyerk Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Hye-Mi Lee
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon, 35015, South Korea
| | - Jin Kyung Kim
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon, 35015, South Korea.,Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, South Korea
| | - Jin Ho Choe
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon, 35015, South Korea.,Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, South Korea
| | - Ji-Chan Jang
- Molecular Mechanism of Antibiotics, Division of Life Science, Research Institute of Life Science, Gyeongsang National University, Jinju, 52828, South Korea
| | - Soohyun Um
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Hyo Sun Jin
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon, 35015, South Korea
| | - Masaaki Komatsu
- Department of Biochemistry, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 9518510, Japan
| | - Guang-Ho Cha
- Department of Infection Biology, Chungnam National University School of Medicine, Daejeon, 35015, South Korea
| | - Han-Jung Chae
- Department of Pharmacology, Chonbuk National University Medical School, Jeonju, 54907, South Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
| | - Eun-Kyeong Jo
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon, 35015, South Korea. .,Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, South Korea.
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29
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Mitsuhashi T, Uemoto R, Ishikawa K, Yoshida S, Ikeda Y, Yagi S, Matsumoto T, Akaike M, Aihara KI. Endothelial Nitric Oxide Synthase-Independent Pleiotropic Effects of Pitavastatin Against Atherogenesis and Limb Ischemia in Mice. J Atheroscler Thromb 2017; 25:65-80. [PMID: 28592707 PMCID: PMC5770225 DOI: 10.5551/jat.37747] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim: Statins have a protective impact against cardiovascular diseases through not only lipid-lowering effects but also pleiotropic effects, including activation of the endothelial nitric oxide synthase (eNOS) system. We aimed to clarify the protective effects of a statin against atherogenesis and ischemia in eNOS−/− mice. Methods: Study 1. eNOS−/−Apolipoprotein E (ApoE)−/− mice were treated with a vehicle or pitavastatin (0.3 mg/kg/day) for 4 weeks. Study 2. eNOS−/− mice were also treated with a vehicle or the same dose of pitavastatin for 2 weeks prior to hind-limb ischemia. Results: In Study 1, pitavastatin attenuated plaque formation and medial fibrosis of the aortic root with decreased macrophage infiltration in eNOS−/−ApoE−/− mice. PCR array analysis showed reductions in aortic gene expression of proatherogenic factors, including Ccl2 and Ccr2 in pitavastatin-treated double mutant mice. In addition, pitavastatin activated not only atherogenic p38MAPK and JNK but also anti-atherogenic ERK1/2 and ERK5 in the aorta of the double mutant mice. In Study 2, pitavastatin prolonged hind-limb survival after the surgery with increased BCL2-to-BAX protein ratio and inactivated JNK. Enhanced expression of anti-apoptotic genes, including Vegf, Api5, Atf5, Prdx2, and Dad1, was observed in the ischemic limb of pitavastatin-treated eNOS−/− mice. Furthermore, pitavastatin activated both aortic and skeletal muscle AMPK in the eNOS-deficient vascular injury models. Conclusion: Pitavastatin exerts eNOS-independent protective effects against atherogenesis and hindlimb ischemia in mice, which may occur via modifications on key molecules such as AMPK and diverse molecules.
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Affiliation(s)
| | - Ryoko Uemoto
- Department of Community Medicine for Diabetes and Metabolic Disorders, Tokushima University
| | | | - Sumiko Yoshida
- Department of Hematology, Endocrinology & Metabolism, Tokushima University
| | | | - Shusuke Yagi
- Department of Cardiovascular Medicine, Tokushima University Graduate School of Biomedical Sciences
| | - Toshio Matsumoto
- Fujii Memorial Institute of Medical Sciences, Tokushima University
| | | | - Ken-Ichi Aihara
- Department of Community Medicine for Diabetes and Metabolic Disorders, Tokushima University
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30
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Guigas B, Viollet B. Targeting AMPK: From Ancient Drugs to New Small-Molecule Activators. ACTA ACUST UNITED AC 2017; 107:327-350. [PMID: 27812986 DOI: 10.1007/978-3-319-43589-3_13] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The AMP-activated protein kinase (AMPK) is an evolutionary conserved and ubiquitously expressed serine/threonine kinase mainly acting as a key regulator of cellular energy homeostasis. AMPK is a heterotrimeric protein complex, consisting of a catalytic α subunit and two regulatory β and γ subunits, whose activity is tightly regulated by changes in adenine nucleotides and several posttranslational modifications. Once activated in response to energy deficit, AMPK concomitantly inhibits ATP-consuming anabolic processes and promotes ATP-generating catabolic pathways via direct phosphorylation of multiple downstream effectors, leading to restoration of cellular energy balance. A growing number of energy/nutrient-independent functions of AMPK are also regularly reported, progressively expanding its role to regulation of non-metabolic cellular processes. Historically, AMPK as a therapeutic target has attracted much of interest due to its potential impact on metabolic disorders, such as obesity and type 2 diabetes, but has also recently received considerable renewed attention in the framework of cancer studies, highlighting the persistent need for selective, reversible, potent, and tissue-specific activators. In this chapter, we review the most recent advances in the understanding of the mechanism(s) of action of the current portfolio of AMPK activators, including plant-derived natural compounds and newly discovered small-molecule agonists directly targeting various AMPK subunits.
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Affiliation(s)
- Bruno Guigas
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands.
- Department of Parasitology, Leiden University Medical Center, 9600, Postzone L40-Q, 2300 RC, Leiden, The Netherlands.
| | - Benoit Viollet
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
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31
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Li J, Zhong L, Wang F, Zhu H. Dissecting the role of AMP-activated protein kinase in human diseases. Acta Pharm Sin B 2017; 7:249-259. [PMID: 28540163 PMCID: PMC5430814 DOI: 10.1016/j.apsb.2016.12.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/12/2016] [Accepted: 11/17/2016] [Indexed: 12/18/2022] Open
Abstract
AMP-activated protein kinase (AMPK), known as a sensor and a master of cellular energy balance, integrates various regulatory signals including anabolic and catabolic metabolic processes. Accompanying the application of genetic methods and a plethora of AMPK agonists, rapid progress has identified AMPK as an attractive therapeutic target for several human diseases, such as cancer, type 2 diabetes, atherosclerosis, myocardial ischemia/reperfusion injury and neurodegenerative disease. The role of AMPK in metabolic and energetic modulation both at the intracellular and whole body levels has been reviewed elsewhere. In the present review, we summarize and update the paradoxical role of AMPK implicated in the diseases mentioned above and put forward the challenge encountered. Thus it will be expected to provide important clues for exploring rational methods of intervention in human diseases.
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Affiliation(s)
- Jin Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China
| | - Liping Zhong
- Life Science College of Tarim University, Xinjiang 843300, China
| | - Fengzhong Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China
- Corresponding author. Tel./fax: +86 10 62810295.
| | - Haibo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing 100050, China
- Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Beijing 100050, China
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
- Corresponding author at: Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China. Tel./fax: +86 10 63188106.
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32
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Eicosapentaenoic Acid-Enriched Phosphatidylcholine Attenuated Hepatic Steatosis Through Regulation of Cholesterol Metabolism in Rats with Nonalcoholic Fatty Liver Disease. Lipids 2016; 52:119-127. [DOI: 10.1007/s11745-016-4222-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 12/09/2016] [Indexed: 01/26/2023]
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33
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June RK, Liu-Bryan R, Long F, Griffin TM. Emerging role of metabolic signaling in synovial joint remodeling and osteoarthritis. J Orthop Res 2016; 34:2048-2058. [PMID: 27605370 PMCID: PMC5365077 DOI: 10.1002/jor.23420] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 08/31/2016] [Indexed: 02/04/2023]
Abstract
Obesity and associated metabolic diseases collectively referred to as the metabolic syndrome increase the risk of skeletal and synovial joint diseases, including osteoarthritis (OA). The relationship between obesity and musculoskeletal diseases is complex, involving biomechanical, dietary, genetic, inflammatory, and metabolic factors. Recent findings illustrate how changes in cellular metabolism and metabolic signaling pathways alter skeletal development, remodeling, and homeostasis, especially in response to biomechanical and inflammatory stressors. Consequently, a better understanding of the energy metabolism of diarthrodial joint cells and tissues, including bone, cartilage, and synovium, may lead to new strategies to treat or prevent synovial joint diseases such as OA. This rationale was the basis of a workshop presented at the 2016 Annual ORS Meeting in Orlando, FL on the emerging role of metabolic signaling in synovial joint remodeling and OA. The topics we covered included (i) the relationship between metabolic syndrome and OA in clinical and pre-clinical studies; (ii) the effect of biomechanical loading on chondrocyte metabolism; (iii) the effect of Wnt signaling on osteoblast carbohydrate and amino acid metabolism with respect to bone anabolism; and (iv) the role of AMP-activated protein kinase in chondrocyte energetic and biomechanical stress responses in the context of cartilage injury, aging, and OA. Although challenges exist for measuring in vivo changes in synovial joint tissue metabolism, the findings presented herein provide multiple lines of evidence to support a central role for disrupted cellular energy metabolism in the pathogenesis of OA. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 34:2048-2058, 2016.
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Affiliation(s)
- Ronald K. June
- Depts. of Mechanical & Industrial Engineering and Cell Biology & Neuroscience, Montana State University, Bozeman, MT, USA
| | - Ru Liu-Bryan
- VA San Diego Healthcare System, Dept. of Medicine, University of California San Diego, San Diego, California, USA
| | - Fanxing Long
- Dept. of Orthopaedic Surgery, Dept. of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Timothy M. Griffin
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Depts. of Biochemistry and Molecular Biology, Physiology, and Geriatric Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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34
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Halligan DN, Murphy SJE, Taylor CT. The hypoxia-inducible factor (HIF) couples immunity with metabolism. Semin Immunol 2016; 28:469-477. [PMID: 27717536 DOI: 10.1016/j.smim.2016.09.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 09/23/2016] [Accepted: 09/30/2016] [Indexed: 12/16/2022]
Abstract
Crosstalk between metabolic and immune pathways has recently become appreciated to be key to the regulation of host defence. The hypoxia-inducible factor (HIF) is a transcription factor which was initially described as a ubiquitous master regulator of the transcriptional response to hypoxia. In this role, HIF regulates genes promoting adaptation to hypoxia including a number which influence the cellular metabolic strategy of a cell. It has more recently been appreciated that the regulation of HIF is not restricted to oxygen-dependent pathways, and is now known to be mediated by a number of additional metabolic and immune cues including metabolites and cytokines respectively. Furthermore, our understanding of the functional role of HIF has expanded to it now being appreciated as a major regulator of host immunity. This places HIF in an ideal position to act as a regulatory hub which links metabolic activity with immunity. In this review we synthesise recent data which identifies HIF as both a target and effector for metabolic and immune processes. Developing our understanding of the role of HIF in this context will uncover new therapeutic targets for inflammatory and infectious disease.
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Affiliation(s)
- Doug N Halligan
- Conway Institute, Charles Institute & Systems Biology Ireland, University College Dublin, Belfield Dublin 4, Ireland; Sigmoid Pharma, Invent Centre, Dublin City University, Dublin 9, Ireland
| | - Stephen J E Murphy
- Conway Institute, Charles Institute & Systems Biology Ireland, University College Dublin, Belfield Dublin 4, Ireland
| | - Cormac T Taylor
- Conway Institute, Charles Institute & Systems Biology Ireland, University College Dublin, Belfield Dublin 4, Ireland; IRCAN, Centre A. Lacassagne, University of Nice-Sophia Antipolis, 33 Avenue Valombrose, 06107 Nice, France; Centre Scientifique de Monaco (CSM), 8, Quai Antoine Premier, Monaco.
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35
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Huang M, Zhao P, Xiong M, Zhou Q, Zheng S, Ma X, Xu C, Yang J, Yang X, Zhang TC. Antidiabetic activity of perylenequinonoid-rich extract from Shiraia bambusicola in KK-Ay mice with spontaneous type 2 diabetes mellitus. JOURNAL OF ETHNOPHARMACOLOGY 2016; 191:71-81. [PMID: 27286915 DOI: 10.1016/j.jep.2016.06.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 05/30/2016] [Accepted: 06/05/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Bitter and cold traditional Chinese medicines (TCMs) have been long used to treat diabetes mellitus (DM) based on unique medical theory system since ancient China. As one of bitter and cold TCMs, the stromatas of Shiraia bambusicola have been used for the treatment of DM and exerted clinical effects to a certain extent. However, the corresponding active principles and antidiabetic mechanism of the TCM still remain unknown. Therefore, the aim of the present investigation was to evaluate the potential antidiabetic effect of the active Shiraia bambusicola EtOAc extract (SB-EtOAc) in vitro and in vivo, and elucidate its probable antidiabetic mechanism. MATERIALS AND METHODS A LC-PDA-ESIMS protocol was developed to determine the chemical principles of the active EtOAc extract rapidly and unambiguously. The effect of SB-EtOAc on the glucose transporter type 4 (GLUT4) translocation and glucose uptake in L6 cells was examined. SB-EtOAc was orally administration at the dose of 30, 60 and 120mg/kg/d in KK-Ay mice, for 21 days. Body weight, plasma glucose, oral glucose tolerance test, fasted blood glucose levels, oral glucose tolerance test and insulin tolerance test, serum insulin and blood-lipid indexes were measured. GLUT4 on L6 cells membrane and phosphorylation of the AMP-activated protein kinase (p-AMPK) expression in L6 cells were measured. The GLUT4 and p-AMPK expression in KK-Ay mice skeletal muscle were measured. Phosphorylation of the acetyl-CoA carboxylase (p-ACC) and p-AMPK were measured. RESULTS In vitro, SB-EtOAc exhibited a strong effect of stimulation on GLUT4 translocation by 3.2 fold in L6 cells compared with basal group, however, the selective AMPK inhibitor compound C can completely inhibit the AMPK pathway and prevent the GLUT4 translocation caused by SB-EtOAc. The further western blotting experiments showed that SB-EtOAc can stimulate AMPK phosphorylation in L6 cells and improve the expression of GLUT4. In vivo, SB-EtOAc can improve the KK-Ay mice insulin resistant and oral glucose tolerance to a certain extent. And the body weight, blood glucose levels and the serum TC, TG, FFA, AST, ALT and LDL-C were significantly reduced and HDL-C were increased after 3 weeks treatment. Mechanistically, phosphorylation of the AMPK and ACC had been improved obviously and the levels of AMPK phosphorylation and GLUT4 had been also enhanced. CONCLUSION In vitro, SB-EtOAc exhibited a strong effect of stimulation on GLUT4 translocation and improved significantly the glucose uptake. In vivo, SB-EtOAc significantly improved oral glucose tolerance and the insulin resistant as well as glucolipid metabolism. In this study, SB-EtOAc displayed promising positive antidiabetic activity in vitro and in vivo, partly by modulating AMPK-GLUT4 and AMPK-ACC signaling pathways.
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MESH Headings
- AMP-Activated Protein Kinases/metabolism
- Acetates/chemistry
- Acetyl-CoA Carboxylase/metabolism
- Animals
- Ascomycota/chemistry
- Biomarkers/blood
- Blood Glucose/drug effects
- Blood Glucose/metabolism
- Blotting, Western
- Cell Line
- Chromatography, Liquid
- Diabetes Mellitus, Type 2/blood
- Diabetes Mellitus, Type 2/drug therapy
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Glucose Transporter Type 4/metabolism
- Hypoglycemic Agents/isolation & purification
- Hypoglycemic Agents/pharmacology
- Hypoglycemic Agents/toxicity
- Insulin/blood
- Insulin Resistance
- Lethal Dose 50
- Lipids/blood
- Male
- Myoblasts, Skeletal/drug effects
- Myoblasts, Skeletal/metabolism
- Perylene/isolation & purification
- Perylene/pharmacology
- Phosphorylation
- Protein Transport
- Rats
- Sasa/microbiology
- Signal Transduction/drug effects
- Solvents/chemistry
- Spectrometry, Mass, Electrospray Ionization
- Time Factors
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Affiliation(s)
- Mi Huang
- Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei province, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Ping Zhao
- Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei province, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Mingrui Xiong
- Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei province, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Qi Zhou
- Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei province, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Sijian Zheng
- Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei province, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Xinhua Ma
- Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei province, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Chan Xu
- Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei province, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Jing Yang
- Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei province, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Xinzhou Yang
- Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei province, South-Central University for Nationalities, Wuhan 430074, PR China; College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, PR China.
| | - Tong-Cun Zhang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, PR China.
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Huang M, Deng S, Han Q, Zhao P, Zhou Q, Zheng S, Ma X, Xu C, Yang J, Yang X. Hypoglycemic Activity and the Potential Mechanism of the Flavonoid Rich Extract from Sophora tonkinensis Gagnep. in KK-Ay Mice. Front Pharmacol 2016; 7:288. [PMID: 27656144 PMCID: PMC5011294 DOI: 10.3389/fphar.2016.00288] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/18/2016] [Indexed: 12/21/2022] Open
Abstract
This study investigated the active principles, hypoglycemic activity and potential mechanisms of the flavonoid rich extract from Sophora tonkinensis Gagnep. (ST-EtOAc) in KK-Ay diabetic mice. An off-line semipreparative liquid chromatography-nuclear magnetic resonance (LC-NMR) and liquid chromatography-ultraviolet-electrospray ionization mass spectrometry (LC-UV–ESIMS) protocol was performed to determine 13 flavonoids from ST-EtOAc. ST-EtOAc administrated orally to the KK-Ay mice significantly increased their sensibility to insulin, reduced fasting blood-glucose levels and blood lipid indexes such as triglyceride and cholesterol. Moreover, ST-EtOAc exhibited a strong effect of stimulation on glucose transporter 4 (GLUT4) translocation by 2.7-fold in L6 cells. However, the selective AMP-activated protein kinase (AMPK) inhibitor compound C can completely inhibit the activation of the AMPK pathway and prevent the GLUT4 translocation caused by ST-EtOAc. In vivo, phosphorylation of the AMPK expression in the liver and skeletal muscle was measured. The results showed phosphorylation of the AMPK had been improved and GLUT4 expression had been also enhanced. In this paper, we conclude that, ST-EtOAc seems to have potential beneficial effects on the treatment of type 2 diabetes mellitus with the probable mechanism of stimulating GLUT4 translocation modulated by the AMPK pathway.
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Affiliation(s)
- Mi Huang
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan, China
| | - Shihao Deng
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan, China
| | - Qianqian Han
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan, China
| | - Ping Zhao
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan, China
| | - Qi Zhou
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan, China
| | - Sijian Zheng
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan, China
| | - Xinhua Ma
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan, China
| | - Chan Xu
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan, China
| | - Jing Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan, China
| | - Xinzhou Yang
- School of Pharmaceutical Sciences, South-Central University for NationalitiesWuhan, China; State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of SciencesShanghai, China; College of Biological Engineering, Tianjin University of Science and TechnologyTianjin, China
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37
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Denou E, Marcinko K, Surette MG, Steinberg GR, Schertzer JD. High-intensity exercise training increases the diversity and metabolic capacity of the mouse distal gut microbiota during diet-induced obesity. Am J Physiol Endocrinol Metab 2016; 310:E982-93. [PMID: 27117007 PMCID: PMC4935139 DOI: 10.1152/ajpendo.00537.2015] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 04/14/2016] [Indexed: 02/07/2023]
Abstract
Diet and exercise underpin the risk of obesity-related metabolic disease. Diet alters the gut microbiota, which contributes to aspects of metabolic disease during obesity. Repeated exercise provides metabolic benefits during obesity. We assessed whether exercise could oppose changes in the taxonomic and predicted metagenomic characteristics of the gut microbiota during diet-induced obesity. We hypothesized that high-intensity interval training (HIIT) would counteract high-fat diet (HFD)-induced changes in the microbiota without altering obesity in mice. Compared with chow-fed mice, an obesity-causing HFD decreased the Bacteroidetes-to-Firmicutes ratio and decreased the genetic capacity in the fecal microbiota for metabolic pathways such as the tricarboxylic acid (TCA) cycle. After HFD-induced obesity was established, a subset of mice were HIIT for 6 wk, which increased host aerobic capacity but did not alter body or adipose tissue mass. The effects of exercise training on the microbiota were gut segment dependent and more extensive in the distal gut. HIIT increased the alpha diversity and Bacteroidetes/Firmicutes ratio of the distal gut and fecal microbiota during diet-induced obesity. Exercise training increased the predicted genetic capacity related to the TCA cycle among other aspects of metabolism. Strikingly, the same microbial metabolism indexes that were increased by exercise were all decreased in HFD-fed vs. chow diet-fed mice. Therefore, exercise training directly opposed some of the obesity-related changes in gut microbiota, including lower metagenomic indexes of metabolism. Some host and microbial pathways appeared similarly affected by exercise. These exercise- and diet-induced microbiota interactions can be captured in feces.
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Affiliation(s)
- Emmanuel Denou
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Katarina Marcinko
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada; and
| | - Michael G Surette
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada; and Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Gregory R Steinberg
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada; and
| | - Jonathan D Schertzer
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada; Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
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38
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Zhang P, Huang C, Li J, Li T, Guo H, Liu T, Li N, Zhu Q, Guo Y. Globular CTRP9 inhibits oxLDL-induced inflammatory response in RAW 264.7 macrophages via AMPK activation. Mol Cell Biochem 2016; 417:67-74. [PMID: 27188183 DOI: 10.1007/s11010-016-2714-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 04/27/2016] [Indexed: 12/18/2022]
Abstract
C1q-TNF-related protein-9 (CTRP9) is increasingly recognized as a promising cardioprotective adipocytokine, which regulates biological processes like vascular relaxation, proliferation, apoptosis, and inflammation. We recently showed that CTRP9 enhanced carotid plaque stability by reducing pro-inflammatory cytokines in macrophages. However, the underlying molecular mechanism of CTRP9 on anti-inflammatory response in macrophages still remains unclear. We demonstrated that globular CTRP9 (gCTRP9) significantly reduced oxidized low-density lipoprotein (oxLDL)-induced tumor necrosis factor alpha and monocyte chemoattractant protein 1 expression by suppressing nuclear factor-κB phosphorylation and nuclear translocation in RAW 264.7 macrophages. Treatment with gCTRP9 strikingly increased the level of phosphorylated adenosine monophosphate-activated protein kinase (AMPK). AMPK inhibitor abolished the anti-inflammatory effects of gCTRP9. Moreover, gCTRP9 increased the expression of adiponectin receptor 1 (AdipoR1). Downregulation of AdipoR1 by siRNA could abrogate the activation of AMPK and the anti-inflammatory effects of gCTRP9. These results suggested that gCTRP9 protected RAW 264.7 macrophages from oxLDL via AMPK activation in an AdipoR1 dependent fashion.
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Affiliation(s)
- Peng Zhang
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Chengmin Huang
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Jun Li
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Tingting Li
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Haipeng Guo
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China.,Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Tianjiao Liu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Na Li
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Qing Zhu
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Yuan Guo
- Department of Cardiology, Qilu Hospital of Shandong University, 107 Wen Hua Xi Road, Jinan, 250012, Shandong Province, China. .,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China.
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39
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Cavallari JF, Denou E, Foley KP, Khan WI, Schertzer JD. Different Th17 immunity in gut, liver, and adipose tissues during obesity: the role of diet, genetics, and microbes. Gut Microbes 2016; 7:82-9. [PMID: 26939856 PMCID: PMC4856458 DOI: 10.1080/19490976.2015.1127481] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Microbes modify immunometabolism responses linking obesity and type 2 diabetes. Immunity helps maintain a host-microbe symbiosis, but inflammation can promote insulin resistance in tissues that control blood glucose. We were interested in compartmentalization of immune responses during obesity and show here that feeding mice an obesity-causing high-fat diet (HFD) decreased a marker of neutrophil activation and cytokines related to Th17 responses in the gut. A HFD decreased IL-17 and IL-21/22 in the ileum and colon, respectively. A HFD increased IL-17, IL-21/22 and other related Th17 responses in the liver. At the whole tissue level, there is divergence in gut and metabolic tissue Th17 cytokines during diet-induced obesity. Deletion of the bacterial peptidoglycan sensor NOD2 had relatively minor effects on these immune responses. We propose a model where diet-induced obesity promotes a permissive gut immune environment and sets the stage for host genetics to contribute to dysbiosis-driven metabolic tissue inflammation.
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Affiliation(s)
- Joseph F. Cavallari
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Emmanuel Denou
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Kevin P. Foley
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Waliul I. Khan
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada,Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - Jonathan D. Schertzer
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
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40
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Immunometabolism of obesity and diabetes: microbiota link compartmentalized immunity in the gut to metabolic tissue inflammation. Clin Sci (Lond) 2015; 129:1083-96. [PMID: 26464517 DOI: 10.1042/cs20150431] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The bacteria that inhabit us have emerged as factors linking immunity and metabolism. Changes in our microbiota can modify obesity and the immune underpinnings of metabolic diseases such as Type 2 diabetes. Obesity coincides with a low-level systemic inflammation, which also manifests within metabolic tissues such as adipose tissue and liver. This metabolic inflammation can promote insulin resistance and dysglycaemia. However, the obesity and metabolic disease-related immune responses that are compartmentalized in the intestinal environment do not necessarily parallel the inflammatory status of metabolic tissues that control blood glucose. In fact, a permissive immune environment in the gut can exacerbate metabolic tissue inflammation. Unravelling these discordant immune responses in different parts of the body and establishing a connection between nutrients, immunity and the microbiota in the gut is a complex challenge. Recent evidence positions the relationship between host gut barrier function, intestinal T cell responses and specific microbes at the crossroads of obesity and inflammation in metabolic disease. A key problem to be addressed is understanding how metabolite, immune or bacterial signals from the gut are relayed and transferred into systemic or metabolic tissue inflammation that can impair insulin action preceding Type 2 diabetes.
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41
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Hubler MJ, Kennedy AJ. Role of lipids in the metabolism and activation of immune cells. J Nutr Biochem 2015; 34:1-7. [PMID: 27424223 DOI: 10.1016/j.jnutbio.2015.11.002] [Citation(s) in RCA: 149] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/28/2015] [Accepted: 11/09/2015] [Indexed: 12/12/2022]
Abstract
Immune cell plasticity has extensive implications in the pathogenesis and resolution of metabolic disorders, cancers, autoimmune diseases and chronic inflammatory disorders. Over the past decade, nutritional status has been discovered to influence the immune response. In metabolic disorders such as obesity, immune cells interact with various classes of lipids, which are capable of controlling the plasticity of macrophages and T lymphocytes. The purpose of this review is to discuss lipids and their impact on innate and adaptive immune responses, focusing on two areas: (1) the impact of altering lipid metabolism on immune cell activation, differentiation and function and (2) the mechanism by which lipids such as cholesterol and fatty acids regulate immune cell plasticity.
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Affiliation(s)
- Merla J Hubler
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Arion J Kennedy
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN, USA.
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42
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Denou E, Lolmède K, Garidou L, Pomie C, Chabo C, Lau TC, Fullerton MD, Nigro G, Zakaroff-Girard A, Luche E, Garret C, Serino M, Amar J, Courtney M, Cavallari JF, Henriksbo BD, Barra NG, Foley KP, McPhee JB, Duggan BM, O'Neill HM, Lee AJ, Sansonetti P, Ashkar AA, Khan WI, Surette MG, Bouloumié A, Steinberg GR, Burcelin R, Schertzer JD. Defective NOD2 peptidoglycan sensing promotes diet-induced inflammation, dysbiosis, and insulin resistance. EMBO Mol Med 2015; 7:259-74. [PMID: 25666722 PMCID: PMC4364944 DOI: 10.15252/emmm.201404169] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pattern recognition receptors link metabolite and bacteria-derived inflammation to insulin resistance during obesity. We demonstrate that NOD2 detection of bacterial cell wall peptidoglycan (PGN) regulates metabolic inflammation and insulin sensitivity. An obesity-promoting high-fat diet (HFD) increased NOD2 in hepatocytes and adipocytes, and NOD2(-/-) mice have increased adipose tissue and liver inflammation and exacerbated insulin resistance during a HFD. This effect is independent of altered adiposity or NOD2 in hematopoietic-derived immune cells. Instead, increased metabolic inflammation and insulin resistance in NOD2(-/-) mice is associated with increased commensal bacterial translocation from the gut into adipose tissue and liver. An intact PGN-NOD2 sensing system regulated gut mucosal bacterial colonization and a metabolic tissue dysbiosis that is a potential trigger for increased metabolic inflammation and insulin resistance. Gut dysbiosis in HFD-fed NOD2(-/-) mice is an independent and transmissible factor that contributes to metabolic inflammation and insulin resistance when transferred to WT, germ-free mice. These findings warrant scrutiny of bacterial component detection, dysbiosis, and protective immune responses in the links between inflammatory gut and metabolic diseases, including diabetes.
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Affiliation(s)
- Emmanuel Denou
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Karine Lolmède
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 1: «stroma-vascular cells of adipose tissue», Toulouse, France
| | - Lucile Garidou
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 2: «Intestinal Risk Factors, Diabetes, Dyslipidemia», Toulouse Cedex 4, France
| | - Celine Pomie
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 2: «Intestinal Risk Factors, Diabetes, Dyslipidemia», Toulouse Cedex 4, France
| | - Chantal Chabo
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 2: «Intestinal Risk Factors, Diabetes, Dyslipidemia», Toulouse Cedex 4, France VAIOMER SAS, Prologue Biotech, Labège, France
| | - Trevor C Lau
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Morgan D Fullerton
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Giulia Nigro
- Unité de Pathogénie Microbienne Moléculaire and Unité INSERM 786 Institut Pasteur, Paris, France
| | - Alexia Zakaroff-Girard
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 1: «stroma-vascular cells of adipose tissue», Toulouse, France
| | - Elodie Luche
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 2: «Intestinal Risk Factors, Diabetes, Dyslipidemia», Toulouse Cedex 4, France
| | - Céline Garret
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 2: «Intestinal Risk Factors, Diabetes, Dyslipidemia», Toulouse Cedex 4, France
| | - Matteo Serino
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 2: «Intestinal Risk Factors, Diabetes, Dyslipidemia», Toulouse Cedex 4, France
| | - Jacques Amar
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 2: «Intestinal Risk Factors, Diabetes, Dyslipidemia», Toulouse Cedex 4, France
| | | | - Joseph F Cavallari
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Brandyn D Henriksbo
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Nicole G Barra
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Kevin P Foley
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Joseph B McPhee
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Brittany M Duggan
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Hayley M O'Neill
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Amanda J Lee
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Philippe Sansonetti
- Unité de Pathogénie Microbienne Moléculaire and Unité INSERM 786 Institut Pasteur, Paris, France
| | - Ali A Ashkar
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Waliul I Khan
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada Farncombe Family Digestive Health Research Institute McMaster University, Hamilton, ON, Canada
| | - Michael G Surette
- Department of Medicine, McMaster University, Hamilton, ON, Canada Farncombe Family Digestive Health Research Institute McMaster University, Hamilton, ON, Canada
| | - Anne Bouloumié
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 1: «stroma-vascular cells of adipose tissue», Toulouse, France
| | | | - Rémy Burcelin
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France Université Paul Sabatier (UPS) Unité Mixte de Recherche (UMR) 1048 Institut des Maladies Métaboliques et Cardiovasculaires (I2MC) Team 2: «Intestinal Risk Factors, Diabetes, Dyslipidemia», Toulouse Cedex 4, France
| | - Jonathan D Schertzer
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
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Hwang HJ, Jung TW, Kim BH, Hong HC, Seo JA, Kim SG, Kim NH, Choi KM, Choi DS, Baik SH, Yoo HJ. A dipeptidyl peptidase-IV inhibitor improves hepatic steatosis and insulin resistance by AMPK-dependent and JNK-dependent inhibition of LECT2 expression. Biochem Pharmacol 2015; 98:157-66. [DOI: 10.1016/j.bcp.2015.08.098] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 08/17/2015] [Indexed: 10/23/2022]
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Inflammation and intracellular metabolism: new targets in OA. Osteoarthritis Cartilage 2015; 23:1835-42. [PMID: 26521729 PMCID: PMC4668929 DOI: 10.1016/j.joca.2014.12.016] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 12/17/2014] [Indexed: 02/02/2023]
Abstract
Articular cartilage degeneration is hallmark of osteoarthritis (OA). Low-grade chronic inflammation in the joint can promote OA progression. Emerging evidence indicates that bioenergy sensors couple metabolism with inflammation to switch physiological and clinical phenotypes. Changes in cellular bioenergy metabolism can reprogram inflammatory responses, and inflammation can disturb cellular energy balance and increase cell stress. AMP-activated protein kinase (AMPK) and sirtuin 1 (SIRT1) are two critical bioenergy sensors that regulate energy balance at both cellular and whole-body levels. Dysregulation of AMPK and SIRT1 has been implicated in diverse human diseases and aging. This review reveals recent findings on the role of AMPK and SIRT1 in joint tissue homeostasis and OA, with a focus on how AMPK and SIRT1 in articular chondrocytes modulate intracellular energy metabolism during stress responses (e.g., inflammatory responses) and how these changes dictate specific effector functions, and discusses translational significance of AMPK and SIRT1 as new therapeutic targets for OA.
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Henriksbo BD, Schertzer JD. Is immunity a mechanism contributing to statin-induced diabetes? Adipocyte 2015; 4:232-8. [PMID: 26451278 PMCID: PMC4573193 DOI: 10.1080/21623945.2015.1024394] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/20/2015] [Accepted: 02/23/2015] [Indexed: 12/21/2022] Open
Abstract
Statins lower cholesterol and are commonly prescribed for prevention and treatment of cardiovascular disease risk. Statins have pleotropic actions beyond cholesterol lowering, including decreased protein prenylation, which can alter immune function. The general anti-inflammatory effect of statins may be a key pleiotropic effect that improves cardiovascular disease risk. However, a series of findings have shown that statins increase the pro-inflammatory cytokine, IL-1β, via decreased protein prenylation in immune cells. IL-1β can be regulated by the NLRP3 inflammasome containing caspase-1. Statins have been associated with an increased risk of new onset diabetes. Inflammation can promote ineffective insulin action (insulin resistance), which often precedes diabetes. This review highlights the links between statins, insulin resistance and immunity via the NLRP3 inflammasome. We propose that statin-induced changes in immunity should be investigated as a mechanism underlying increased risk of diabetes. It is possible that statin-related insulin resistance occurs through a separate pathway from various mechanisms that confer cardiovascular benefits. Therefore, understanding the potential mechanisms that segregate statin-induced cardiovascular effects from those that cause dysglycemia may lead to improvements in this drugs class.
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Affiliation(s)
- Brandyn D Henriksbo
- Department of Biochemistry and Biomedical Sciences; McMaster University; Hamilton, ON, Canada
| | - Jonathan D Schertzer
- Department of Biochemistry and Biomedical Sciences; McMaster University; Hamilton, ON, Canada
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Antonioli L, Colucci R, Pellegrini C, Giustarini G, Sacco D, Tirotta E, Caputi V, Marsilio I, Giron MC, Németh ZH, Blandizzi C, Fornai M. The AMPK enzyme-complex: from the regulation of cellular energy homeostasis to a possible new molecular target in the management of chronic inflammatory disorders. Expert Opin Ther Targets 2015; 20:179-91. [DOI: 10.1517/14728222.2016.1086752] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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47
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Hwang HJ, Chung HS, Jung TW, Ryu JY, Hong HC, Seo JA, Kim SG, Kim NH, Choi KM, Choi DS, Baik SH, Yoo HJ. The dipeptidyl peptidase-IV inhibitor inhibits the expression of vascular adhesion molecules and inflammatory cytokines in HUVECs via Akt- and AMPK-dependent mechanisms. Mol Cell Endocrinol 2015; 405:25-34. [PMID: 25661535 DOI: 10.1016/j.mce.2015.01.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 01/14/2015] [Accepted: 01/16/2015] [Indexed: 11/21/2022]
Abstract
Recently, dipeptidyl peptidase-IV (DPP-IV) inhibitor, a major anti-hyperglycemic agent, has received substantial attention as a possible therapeutic target for inflammatory diseases such as atherosclerosis. However, the direct molecular mechanisms through which DPP-IV inhibitor mediates anti-inflammatory effects in vascular endothelial cells have not been clarified. The effects of the DPP-IV inhibitor, gemigliptin, were analyzed in human umbilical vein endothelial cells (HUVECs) and THP-1 cells. Using Western blotting, we demonstrated that gemigliptin efficiently increased the level of AMP-activated protein kinase (AMPK) and Akt phosphorylation in a dose-dependent manner. The levels of lipopolysaccharide (LPS)-mediated phosphorylated nuclear factor-κB (NF-κB) and c-Jun N-terminal kinase (JNK) were significantly decreased after gemigliptin treatment. Furthermore, gemigliptin reduced LPS-induced expression of adhesion molecules and inflammatory cytokines such as vascular cell adhesion molecule-1 (VCAM-1), E-selectin, tumor necrosis factor-α (TNF-α), monocyte chemoattractant protein-1 (MCP-1), interleukin-1β (IL-1β), and IL-6 in HUVECs. In macrophage-like THP-1 cells, gemigliptin effectively inhibited LPS- and low-density lipoprotein (LDL)-induced foam cell formation. However, these anti-inflammatory and anti-atherosclerotic effects of gemigliptin in HUVECs and THP-1 cells were significantly reduced after treatment with an AMPK or an Akt inhibitor. Our results suggest that gemigliptin efficiently inhibited LPS-induced pro-inflammatory effects in vascular endothelial cells by attenuating NF-κB and JNK signaling via Akt/AMPK-dependent mechanisms. Therefore, the DPP-IV inhibitor, gemigliptin, may directly protect the vascular endothelium against inflammatory diseases such as atherosclerosis.
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Affiliation(s)
- Hwan-Jin Hwang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Hye Soo Chung
- Division of Endocrinology, Department of Medicine, Myongji Hospital, Goyang, Korea
| | - Tae Woo Jung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Ja Young Ryu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Ho Cheol Hong
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Ji A Seo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Sin Gon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Nan Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Kyung Mook Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Dong Seop Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Sei Hyun Baik
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Hye Jin Yoo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea.
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Chen N, Zhou L, Zhang Z, Xu J, Wan Z, Qin L. Resistin induces lipolysis and suppresses adiponectin secretion in cultured human visceral adipose tissue. ACTA ACUST UNITED AC 2014; 194-195:49-54. [DOI: 10.1016/j.regpep.2014.10.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Revised: 10/08/2014] [Accepted: 10/09/2014] [Indexed: 01/19/2023]
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Pharmacological activation of AMPK ameliorates perivascular adipose/endothelial dysfunction in a manner interdependent on AMPK and SIRT1. Pharmacol Res 2014; 89:19-28. [PMID: 25108154 DOI: 10.1016/j.phrs.2014.07.006] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 07/16/2014] [Accepted: 07/17/2014] [Indexed: 12/31/2022]
Abstract
Adipose and endothelial dysfunction is tightly associated with cardiovascular diseases in obesity and insulin resistance. Because perivascular adipose tissue (PVAT) surrounds vessels directly and influences vessel functions through paracrine effect, and AMP-activated protein kinase (AMPK) and sirtuin 1 (SIRT1) show similarities in modulation of metabolic pathway, we hypothesized that activation of AMPK and SIRT1 in PVAT might regulate the endothelial function in pathological settings. Thus, in this study, we focused on the regulation of AMPK and SIRT1 activities implicated in adipocytokine expression and endothelial homeostasis under inflammatory conditions by using salicylate, metformin, AICA riboside (AICAR) and resveratrol as AMPK activating agents. We prepared conditioned medium (CM) by stimulating PVAT with palmitic acid (PA) and observed the effects of AMPK activating agents on adipocytokine expression and vessel vasodilation in rats. Moreover, we explored the effects of resveratrol and metformin in fructose-fed rats. We observed that PA stimulation induced inflammation and dysregulation of adipocytokine expression accompanied with reduced AMPK activity and SIRT1 abundance in PVAT. AMPK activating agents inhibited NF-κB p65 phosphorylation and suppressed gene expression of pro-inflammatory adipocytokines, and upregulated adiponectin and PPARγ expression in PVAT in an AMPK/SIRT1-interdependent manner. Meanwhile, CM stimulation impaired endothelium-dependent vasodilation in response to acetylcholine (ACh). Pretreatment of CM with AMPK-activating agents enhanced eNOS phosphorylation in the aorta and restored the loss of endothelium-dependent vasodilation, whereas this action was abolished by co-treatment with AMPK inhibitor compound C or SIRT1 inhibitor nicotinamide. Long-term fructose-feeding in rats induced dysregulation of adipocytokine expression in PVAT and the loss of endothelium-dependent vasodilation, whereas these alterations were reversed by oral administration of resveratrol and metformin. Altogether, pharmacological activation of AMPK beneficially regulated adipocytokine expression in PVAT and thus ameliorated endothelial dysfunction against inflammatory insult in an AMPK/SIRT1-interdependent manner.
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Filippov S, Pinkosky SL, Newton RS. LDL-cholesterol reduction in patients with hypercholesterolemia by modulation of adenosine triphosphate-citrate lyase and adenosine monophosphate-activated protein kinase. Curr Opin Lipidol 2014; 25:309-15. [PMID: 24978142 PMCID: PMC4162331 DOI: 10.1097/mol.0000000000000091] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW To review the profile of ETC-1002, as shown in preclinical and clinical studies, including LDL-cholesterol (LDL-C)-lowering activity and beneficial effects on other cardiometabolic risk markers as they relate to the inhibition of adenosine triphosphate-citrate lyase and the activation of adenosine monophosphate-activated protein kinase. RECENT FINDINGS ETC-1002 is an adenosine triphosphate-citrate lyase inhibitor/adenosine monophosphate-activated protein kinase activator currently in Phase 2b clinical development. In seven Phase 1 and Phase 2a clinical studies, ETC-1002 dosed once daily for 2-12 weeks has lowered LDL-C and reduced high-sensitivity C-reactive protein by up to 40%, with neutral to positive effects on glucose levels, blood pressure, and body weight. Importantly, use of ETC-1002 in statin-intolerant patients has shown statin-like lowering of LDL-C without the muscle pain and weakness responsible for discontinuation of statin use by many patients. ETC-1002 has also been shown to produce an incremental benefit, lowering LDL-C as an add-on therapy to a low-dose statin. In over 300 individuals in studies of up to 12 weeks, ETC-1002 has been well tolerated with no serious adverse effects. SUMMARY Because adenosine triphosphate-citrate lyase and adenosine monophosphate-activated protein kinase play central roles in regulating lipid and glucose metabolism, pharmacological modulation of these two enzymes could provide an important therapeutic alternative for statin-intolerant patients with hypercholesterolemia.
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