101
|
Hsu WH, Hua KF, Tuan LH, Tsai YL, Chu LJ, Lee YC, Wong WT, Lee SL, Lai JH, Chu CL, Ho LJ, Chiu HW, Hsu YJ, Chen CH, Ka SM, Chen A. Compound K inhibits priming and mitochondria-associated activating signals of NLRP3 inflammasome in renal tubulointerstitial lesions. Nephrol Dial Transplant 2020; 35:74-85. [PMID: 31065699 DOI: 10.1093/ndt/gfz073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 03/08/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Renal tubulointerstitial lesions (TILs), a key pathological hallmark for chronic kidney disease to progress to end-stage renal disease, feature renal tubular atrophy, interstitial mononuclear leukocyte infiltration and fibrosis in the kidney. Our study tested the renoprotective and therapeutic effects of compound K (CK), as described in our US patent (US7932057B2), on renal TILs using a mouse unilateral ureteral obstruction (UUO) model. METHODS Renal pathology was performed and renal draining lymph nodes were subjected to flow cytometry analysis. Mechanism-based experiments included the analysis of mitochondrial dysfunction, a model of tubular epithelial cells (TECs) under mechanically induced constant pressure (MICP) and tandem mass tags (TMT)-based proteomics analysis. RESULTS Administration of CK ameliorated renal TILs by reducing urine levels of proinflammatory cytokines, and preventing mononuclear leukocyte infiltration and fibrosis in the kidney. The beneficial effects clearly correlated with its inhibition of: (i) NF-κB-associated priming and the mitochondria-associated activating signals of the NLRP3 inflammasome; (ii) STAT3 signalling, which in part prevents NLRP3 inflammasome activation; and (iii) the TGF-β-dependent Smad2/Smad3 fibrotic pathway, in renal tissues, renal TECs under MICP and/or activated macrophages, the latter as a major inflammatory player contributing to renal TILs. Meanwhile, TMT-based proteomics analysis revealed downregulated renal NLRP3 inflammasome activation-associated signalling pathways in CK-treated UUO mice. CONCLUSIONS The present study, for the first time, presents the potent renoprotective and therapeutic effects of CK on renal TILs by targeting the NLRP3 inflammasome and STAT3 signalling.
Collapse
Affiliation(s)
- Wan-Han Hsu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Kuo-Feng Hua
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Li-Heng Tuan
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yu-Ling Tsai
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Lichieh Julie Chu
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Chieh Lee
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Wei-Ting Wong
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Sheau-Long Lee
- Department of Chemistry, R.O.C. Military Academy, Kaohsiung, Taiwan
| | - Jenn-Haung Lai
- Department of Internal Medicine, Division of Allergy, Immunology and Rheumatology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Ching-Liang Chu
- Graduate Institute of Immunology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ling-Jun Ho
- Institute of Cellular and System Medicine, National Health Research Institute, Miaoli, Taiwan
| | - Hsiao-Wen Chiu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Yu-Juei Hsu
- Division of Nephrology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Cheng-Hsu Chen
- Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,Department of Life Science, Tunghai University, Taichung, Taiwan.,School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Shuk-Man Ka
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan.,Graduate Institute of Aerospace and Undersea Medicine, Department of Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Ann Chen
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan.,Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| |
Collapse
|
102
|
Meyers AK, Zhu X. The NLRP3 Inflammasome: Metabolic Regulation and Contribution to Inflammaging. Cells 2020; 9:cells9081808. [PMID: 32751530 PMCID: PMC7463618 DOI: 10.3390/cells9081808] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/21/2020] [Accepted: 07/28/2020] [Indexed: 12/13/2022] Open
Abstract
In response to inflammatory stimuli, immune cells reconfigure their metabolism and bioenergetics to generate energy and substrates for cell survival and to launch immune effector functions. As a critical component of the innate immune system, the nucleotide-binding and oligomerization domain, leucine-rich repeat, and pyrin domain-containing 3 (NLRP3) inflammasome can be activated by various endogenous and exogenous danger signals. Activation of this cytosolic multiprotein complex triggers the release of the pro-inflammatory cytokines interleukin (IL)-1β and IL-18 and initiates pyroptosis, an inflammatory form of programmed cell death. The NLRP3 inflammasome fuels both chronic and acute inflammatory conditions and is critical in the emergence of inflammaging. Recent advances have highlighted that various metabolic pathways converge as potent regulators of the NLRP3 inflammasome. This review focuses on our current understanding of the metabolic regulation of the NLRP3 inflammasome activation, and the contribution of the NLRP3 inflammasome to inflammaging.
Collapse
Affiliation(s)
- Allison K. Meyers
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA;
| | - Xuewei Zhu
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA;
- Department of Internal Medicine, Section of Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
- Correspondence: ; Tel.: +1-336-713-1445
| |
Collapse
|
103
|
Wang X, Antony V, Wang Y, Wu G, Liang G. Pattern recognition receptor‐mediated inflammation in diabetic vascular complications. Med Res Rev 2020; 40:2466-2484. [DOI: 10.1002/med.21711] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 06/23/2020] [Accepted: 06/29/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Xu Wang
- Chemical Biology Research Center, School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou Zhejiang China
| | - Victor Antony
- Chemical Biology Research Center, School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou Zhejiang China
| | - Yi Wang
- Chemical Biology Research Center, School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou Zhejiang China
- Zhuji Biomedical Institute, School of Pharmaceutical Sciences Wenzhou Medical University Zhuji Zhejiang China
| | - Gaojun Wu
- Department of Cardiology Wenzhou Medical University Wenzhou Zhejiang China
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou Zhejiang China
- Zhuji Biomedical Institute, School of Pharmaceutical Sciences Wenzhou Medical University Zhuji Zhejiang China
| |
Collapse
|
104
|
Cornelius DC, Travis OK, Tramel RW, Borges-Rodriguez M, Baik CH, Greer M, Giachelli CA, Tardo GA, Williams JM. NLRP3 inflammasome inhibition attenuates sepsis-induced platelet activation and prevents multi-organ injury in cecal-ligation puncture. PLoS One 2020; 15:e0234039. [PMID: 32555710 PMCID: PMC7299389 DOI: 10.1371/journal.pone.0234039] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/06/2020] [Indexed: 12/27/2022] Open
Abstract
Sepsis is characterized by organ dysfunction due to a dysregulated immune response to infection. Currently, no effective treatment for sepsis exists. Platelets are recognized as mediators of the immune response and may be a potential therapeutic target for the treatment of sepsis. We previously demonstrated that NLRP3 inflammasome activation in sepsis-induced activated platelets was associated with multi-organ injury in the cecal-ligation puncture (CLP) rat model of sepsis. In this study, we tested the hypothesis that inhibition of NLRP3 would inhibit platelet activation and attenuate multi-organ injury in the CLP rat. CLP (n = 10) or Sham (n = 10) surgery were performed in male and female Sprague-Dawley rats. A subset of CLP rats were treated with MCC950 (50mg/kg/d), a specific NLRP3 inhibitor (CLP+MCC950, n = 10). At 72 hrs. post-CLP, blood and organs were harvested for analysis of platelet activation, NLRP3 activation, inflammation and end organ damage. Platelet activation increased from 8±0.8% in Sham to 16±1% in CLP, and was reduced to 9±1% in CLP+M rats (p<0.05). NLRP3 activation was also increased in platelets of CLP vs Sham. NLRP3 expression was unchanged in kidney and lung after CLP, but Caspase 1 expression and IL-1β were increased. MCC950 treatment attenuated NLRP3 activation in platelets. Plasma, kidney, and lung levels of NLRP3 inflammasome associated cytokines, IL-1ß and IL-18, were significantly increased in CLP compared to Sham rats. Inhibition of NLRP3 normalized cytokine levels. Glomerular injury, pulmonary edema, and endothelial dysfunction markers were increased in CLP rats vs Sham. MCC950 treatment significantly decreased renal and pulmonary injury and endothelial dysfunction in CLP+M. Our results demonstrate a role for NLRP3 in contributing to platelet activation and multi-organ injury in sepsis.
Collapse
Affiliation(s)
- Denise C. Cornelius
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- * E-mail:
| | - Olivia K. Travis
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Robert W. Tramel
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Marivee Borges-Rodriguez
- Department of Pediatrics, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Cedar H. Baik
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Mallory Greer
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Chelsea A. Giachelli
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Geilda A. Tardo
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Jan M. Williams
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| |
Collapse
|
105
|
Wu KKL, Cheung SWM, Cheng KKY. NLRP3 Inflammasome Activation in Adipose Tissues and Its Implications on Metabolic Diseases. Int J Mol Sci 2020; 21:E4184. [PMID: 32545355 PMCID: PMC7312293 DOI: 10.3390/ijms21114184] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/05/2020] [Accepted: 06/09/2020] [Indexed: 02/06/2023] Open
Abstract
Adipose tissue is an active endocrine and immune organ that controls systemic immunometabolism via multiple pathways. Diverse immune cell populations reside in adipose tissue, and their composition and immune responses vary with nutritional and environmental conditions. Adipose tissue dysfunction, characterized by sterile low-grade chronic inflammation and excessive immune cell infiltration, is a hallmark of obesity, as well as an important link to cardiometabolic diseases. Amongst the pro-inflammatory factors secreted by the dysfunctional adipose tissue, interleukin (IL)-1β, induced by the NLR family pyrin domain-containing 3 (NLRP3) inflammasome, not only impairs peripheral insulin sensitivity, but it also interferes with the endocrine and immune functions of adipose tissue in a paracrine manner. Human studies indicated that NLRP3 activity in adipose tissues positively correlates with obesity and its metabolic complications, and treatment with the IL-1β antibody improves glycaemia control in type 2 diabetic patients. In mouse models, genetic or pharmacological inhibition of NLRP3 activation pathways or IL-1β prevents adipose tissue dysfunction, including inflammation, fibrosis, defective lipid handling and adipogenesis, which in turn alleviates obesity and its related metabolic disorders. In this review, we summarize both the negative and positive regulators of NLRP3 inflammasome activation, and its pathophysiological consequences on immunometabolism. We also discuss the potential therapeutic approaches to targeting adipose tissue inflammasome for the treatment of obesity and its related metabolic disorders.
Collapse
Affiliation(s)
| | | | - Kenneth King-Yip Cheng
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China; (K.K.-L.W.); (S.W.-M.C.)
| |
Collapse
|
106
|
ROS-associated immune response and metabolism: a mechanistic approach with implication of various diseases. Arch Toxicol 2020; 94:2293-2317. [PMID: 32524152 DOI: 10.1007/s00204-020-02801-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/02/2020] [Indexed: 12/14/2022]
Abstract
The immune system plays a pivotal role in maintaining the defense mechanism against external agents and also internal danger signals. Metabolic programming of immune cells is required for functioning of different subsets of immune cells under different physiological conditions. The field of immunometabolism has gained ground because of its immense importance in coordination and balance of immune responses. Metabolism is very much related with production of energy and certain by-products. Reactive oxygen species (ROS) are generated as one of the by-products of various metabolic pathways. The amount, localization of ROS and redox status determine transcription of genes, and also influences the metabolism of immune cells. This review discusses ROS, metabolism of immune cells at different cellular conditions and sheds some light on how ROS might regulate immunometabolism.
Collapse
|
107
|
Oliveira MS, Rheinheimer J, Moehlecke M, Rodrigues M, Assmann TS, Leitão CB, Trindade MRM, Crispim D, de Souza BM. UCP2, IL18, and miR-133a-3p are dysregulated in subcutaneous adipose tissue of patients with obesity. Mol Cell Endocrinol 2020; 509:110805. [PMID: 32251712 DOI: 10.1016/j.mce.2020.110805] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 03/26/2020] [Accepted: 03/30/2020] [Indexed: 01/12/2023]
Abstract
The aim of this study was to compare the expression of UCP2, NLRP3, IL1B, IL18, and miR-133a-3p in subcutaneous adipose tissue (SAT) of 61 patients divided according to BMI: Group 1 (n = 8; BMI<25.0 kg/m2), Group 2 (n = 24; BMI 30.0-39.9 kg/m2), and Group 3 (n = 29; BMI≥40.0 kg/m2). SAT biopsies were obtained from individuals who underwent bariatric surgery or elective abdominal surgery. Gene expressions were quantified using qPCR. Bioinformatics analyses were employed to investigate target genes and pathways related to miR-133a-3p. UCP2 and miR-133a-3p expressions were decreased in SAT of Groups 2 and 3 while IL18 was increased compared to Group 1. NLRP3 and IL1B expressions did not differ between groups; however, NLRP3 was positively correlated with waist circumference and excess weight. Bioinformatics analysis demonstrated that UCP2 and NLRP3 are targets of miR-133a-3p. In conclusion, UCP2 and miR-133a-3p expressions are downregulated in patients with obesity, while IL18 is upregulated. NRLP3 is correlated with waist circumference and weight excess.
Collapse
Affiliation(s)
- Mayara S Oliveira
- Endocrine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Universidade Federal do Rio Grande do Sul, Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Brazil
| | - Jakeline Rheinheimer
- Universidade Federal do Rio Grande do Sul, Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Brazil
| | - Milene Moehlecke
- Department of Endocrinology, Universidade Luterana do Brasil, Canoas, Rio Grande do Sul, Brazil
| | - Michelle Rodrigues
- Endocrine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Taís S Assmann
- Endocrine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Universidade Federal do Rio Grande do Sul, Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Brazil
| | - Cristiane B Leitão
- Endocrine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Universidade Federal do Rio Grande do Sul, Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Brazil
| | - Manoel R M Trindade
- Digestive Surgery Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Daisy Crispim
- Endocrine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Universidade Federal do Rio Grande do Sul, Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Brazil
| | - Bianca M de Souza
- Endocrine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Universidade Federal do Rio Grande do Sul, Faculty of Medicine, Graduate Program of Medical Sciences: Endocrinology, Brazil.
| |
Collapse
|
108
|
Fernández-García M, Rey-Stolle F, Boccard J, Reddy VP, García A, Cumming BM, Steyn AJC, Rudaz S, Barbas C. Comprehensive Examination of the Mouse Lung Metabolome Following Mycobacterium tuberculosis Infection Using a Multiplatform Mass Spectrometry Approach. J Proteome Res 2020; 19:2053-2070. [PMID: 32285670 PMCID: PMC7199213 DOI: 10.1021/acs.jproteome.9b00868] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Indexed: 02/08/2023]
Abstract
The mechanisms whereby Mycobacterium tuberculosis (Mtb) rewires the host metabolism in vivo are surprisingly unexplored. Here, we used three high-resolution mass spectrometry platforms to track altered lung metabolic changes associated with Mtb infection of mice. The multiplatform data sets were merged using consensus orthogonal partial least squares-discriminant analysis (cOPLS-DA), an algorithm that allows for the joint interpretation of the results from a single multivariate analysis. We show that Mtb infection triggers a temporal and progressive catabolic state to satisfy the continuously changing energy demand to control infection. This causes dysregulation of metabolic and oxido-reductive pathways culminating in Mtb-associated wasting. Notably, high abundances of trimethylamine-N-oxide (TMAO), produced by the host from the bacterial metabolite trimethylamine upon infection, suggest that Mtb could exploit TMAO as an electron acceptor under anaerobic conditions. Overall, these new pathway alterations advance our understanding of the link between Mtb pathogenesis and metabolic dysregulation and could serve as a foundation for new therapeutic intervention strategies. Mass spectrometry data has been deposited in the Metabolomics Workbench repository (data-set identifier: ST001328).
Collapse
Affiliation(s)
- Miguel Fernández-García
- Centro
de Metabolómica y Bioanálisis (CEMBIO), Facultad de
Farmacia, Universidad San Pablo-CEU, CEU
Universities, Urbanización Montepríncipe, Boadilla del Monte 28660, Spain
| | - Fernanda Rey-Stolle
- Centro
de Metabolómica y Bioanálisis (CEMBIO), Facultad de
Farmacia, Universidad San Pablo-CEU, CEU
Universities, Urbanización Montepríncipe, Boadilla del Monte 28660, Spain
| | - Julien Boccard
- School
of Pharmaceutical Sciences, University of
Lausanne and University of Geneva, Geneva 1211, Switzerland
| | - Vineel P. Reddy
- Department
of Microbiology, University of Alabama at
Birmingham, Birmingham, Alabama 35294, United States
| | - Antonia García
- Centro
de Metabolómica y Bioanálisis (CEMBIO), Facultad de
Farmacia, Universidad San Pablo-CEU, CEU
Universities, Urbanización Montepríncipe, Boadilla del Monte 28660, Spain
| | | | - Adrie J. C. Steyn
- Department
of Microbiology, University of Alabama at
Birmingham, Birmingham, Alabama 35294, United States
- Africa
Health Research Institute, Durban 4001, South Africa
- UAB
Centers for AIDS Research and Free Radical Biology, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Serge Rudaz
- School
of Pharmaceutical Sciences, University of
Lausanne and University of Geneva, Geneva 1211, Switzerland
| | - Coral Barbas
- Centro
de Metabolómica y Bioanálisis (CEMBIO), Facultad de
Farmacia, Universidad San Pablo-CEU, CEU
Universities, Urbanización Montepríncipe, Boadilla del Monte 28660, Spain
| |
Collapse
|
109
|
Le S, Zhang H, Huang X, Chen S, Wu J, Chen S, Ding X, Chen S, Zhao J, Xu H, Cui J, Zou Y, Yu J, Jiang L, Wu J, Ye P, Xia J. PKM2 Activator TEPP-46 Attenuates Thoracic Aortic Aneurysm and Dissection by Inhibiting NLRP3 Inflammasome-Mediated IL-1β Secretion. J Cardiovasc Pharmacol Ther 2020; 25:364-376. [PMID: 32323562 DOI: 10.1177/1074248420919966] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND The development of thoracic aortic aneurysm and dissection (TAAD) is mediated by inflammasome activation, which exacerbates the secretion of pro-inflammatory cytokines, chemokines, matrix metalloproteinases (MMPs), and reactive oxygen species (ROS). The glycolytic enzyme pyruvate kinase M2 (PKM2) has shown a protective role against various disorders with an inflammatory basis, such as sepsis, tumorigenesis, and diabetic nephropathy. However, its potential role in TAAD has not been investigated so far. APPROACH AND RESULTS We analyzed aortic tissues from TAAD patients and the β-aminopropionitrile fumarate (BAPN)-induced mouse model of TAAD and observed elevated levels of PKM2 in the aortic lesions of both. Treatment with the PKM2 activator TEPP-46 markedly attenuated the progression of TAAD in the mouse model as demonstrated by decreased morbidity and luminal diameter of the aorta. In addition, the thoracic aortas of the BAPN-induced mice showed reduced monocytes and macrophages infiltration and lower levels of IL-1β, MMPs, and ROS when treated with TEPP-46. Furthermore, TEPP-46 treatment also suppressed the activation of the NOD-like receptor (NLR) family and pyrin domain-containing protein 3 (NLRP3) inflammasome by downregulating p-STAT3 and HIF1-α. CONCLUSION Pyruvate kinase M2 plays a protective role in TAAD development, and its activation is a promising therapeutic strategy against the progression of TAAD.
Collapse
Affiliation(s)
- Sheng Le
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,The authers Sheng Le and Hao Zhang contributed equally to this article as first authors
| | - Hao Zhang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,The authers Sheng Le and Hao Zhang contributed equally to this article as first authors
| | - Xiaofan Huang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shu Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jia Wu
- Key Laboratory for Molecular Diagnosis of Hubei Province, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shanshan Chen
- Key Laboratory for Molecular Diagnosis of Hubei Province, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - XiangChao Ding
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shanshan Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Zhao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heng Xu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jikai Cui
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanqiang Zou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jizhang Yu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lang Jiang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Wu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Ye
- Department of Cardiology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiahong Xia
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
110
|
Ge Q, Chen L, Yuan Y, Liu L, Feng F, Lv P, Ma S, Chen K, Yao Q. Network Pharmacology-Based Dissection of the Anti-diabetic Mechanism of Lobelia chinensis. Front Pharmacol 2020; 11:347. [PMID: 32265717 PMCID: PMC7099657 DOI: 10.3389/fphar.2020.00347] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 03/09/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic inflammatory disease, and the rapidly increasing DM is becoming a major problem of global public health. Traditional Chinese medicine (TCM) has a long history of treating diabetes. It has been developed and utilized because of its good efficacy and no toxic side effects. Lobelia chinensis is a traditional whole grass herbal. With the continuous deepening of pharmacological research on TCM, the active ingredients of L. chinensis are continuously revealed, which contained the alkaloids, flavonoids, flavonoid glycosides and amino acids that have the good effects of anti-inflammatory, anti-viral and anti-diabetic. In order to further explore the targets of active ingredients and its anti-diabetic mechanism, a feasible network pharmacology analysis model based on chemical, pharmacokinetic and pharmacological data was developed by network construction method to clarify the anti-diabetic mechanism of L. chinensis. The present study conducted by gas chromatography–mass spectrometer (GC/MS), which identified 208 metabolites of L. chinensis, of which 23 ingredients may have effective pharmacological effects after absorption, distribution, metabolism, and excretion (ADME) screening. Network pharmacological analysis on the active ingredients revealed that 5-hydroxymethylfurfural in L. chinensis affects the insulin resistance signaling pathway by acting on GSK3B, TNF, and MAPK1, acacetin affects the diabetic pathway by acting on INSR, DPP4, and GSK3B, that regulate type 2 diabetes, non-insulin-dependent DM, and inflammatory diseases. These results successfully indicated the potential anti-diabetic mechanism of the active ingredients of L. chinensis.
Collapse
Affiliation(s)
- Qi Ge
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China.,Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Liang Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Yi Yuan
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China.,School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Lanlan Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Fan Feng
- School of Biological and Food Engineering, Suzhou University, Suzhou, China
| | - Peng Lv
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China.,School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Qin Yao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China.,Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| |
Collapse
|
111
|
Abstract
There is abundant evidence that infectious sepsis both in humans and mice with polymicrobial sepsis results in robust activation of complement. Major complement activation products involved in sepsis include C5a anaphylatoxin and its receptors (C5aR1 and C5aR2) and, perhaps, the terminal complement activation product, C5b-9. These products (and others) also cause dysfunction of the innate immune system, with exaggerated early proinflammatory responses, followed by decline of the innate immune system, leading to immunosuppression and multiorgan dysfunction. Generation of C5a during sepsis also leads to activation of neutrophils and macrophages and ultimate appearance of extracellular histones, which have powerful proinflammatory and prothrombotic activities. The distal complement activation product, C5b-9, triggers intracellular Ca fluxes in epithelial and endothelial cells. Histones activate the NLRP3 inflammasome, products of which can damage cells. C5a also activates MAPKs and Akt signaling pathways in cardiomyocytes, causing buildup of [Ca]i, defective action potentials and substantial cell dysfunction, resulting in cardiac and other organ dysfunction. Cardiac dysfunction can be quantitated by ECHO-Doppler parameters. In vivo interventions that block these complement-dependent products responsible for organ dysfunction in sepsis reduce the intensity of sepsis. The obvious targets in sepsis are C5a and its receptors, histones, and perhaps the MAPK pathways. Blockade of C5 has been considered in sepsis, but the FDA-approved antibody (eculizumab) is known to compromise defenses against neisseria and pneumonococcal bacteria, and requires immunization before the mAb to C5 can be used clinically. Small molecular blocking agents for C5aRs are currently in development and may be therapeutically effective for treatment of sepsis.
Collapse
|
112
|
Abstract
NLRP3 (NOD-, LRR- and pyrin domain-containing protein 3) is an intracellular sensor that detects a broad range of microbial motifs, endogenous danger signals and environmental irritants, resulting in the formation and activation of the NLRP3 inflammasome. Assembly of the NLRP3 inflammasome leads to caspase 1-dependent release of the pro-inflammatory cytokines IL-1β and IL-18, as well as to gasdermin D-mediated pyroptotic cell death. Recent studies have revealed new regulators of the NLRP3 inflammasome, including new interacting or regulatory proteins, metabolic pathways and a regulatory mitochondrial hub. In this Review, we present the molecular, cell biological and biochemical bases of NLRP3 activation and regulation and describe how this mechanistic understanding is leading to potential therapeutics that target the NLRP3 inflammasome.
Collapse
|
113
|
The HO-1 Signal Prevents HMGB1-Mediated Activation of NLRP3 Inflammasomes in Lipopolysaccharide-Induced Acute Lung Injury In Vitro. J Surg Res 2020; 247:335-343. [DOI: 10.1016/j.jss.2019.10.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 09/08/2019] [Accepted: 10/01/2019] [Indexed: 01/02/2023]
|
114
|
Yao RQ, Ren C, Xia ZF, Yao YM. Organelle-specific autophagy in inflammatory diseases: a potential therapeutic target underlying the quality control of multiple organelles. Autophagy 2020; 17:385-401. [PMID: 32048886 PMCID: PMC8007140 DOI: 10.1080/15548627.2020.1725377] [Citation(s) in RCA: 210] [Impact Index Per Article: 52.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The structural integrity and functional stability of organelles are prerequisites for the viability and responsiveness of cells. Dysfunction of multiple organelles is critically involved in the pathogenesis and progression of various diseases, such as chronic obstructive pulmonary disease, cardiovascular diseases, infection, and neurodegenerative diseases. In fact, those organelles synchronously present with evident structural derangement and aberrant function under exposure to different stimuli, which might accelerate the corruption of cells. Therefore, the quality control of multiple organelles is of great importance in maintaining the survival and function of cells and could be a potential therapeutic target for human diseases. Organelle-specific autophagy is one of the major subtypes of autophagy, selectively targeting different organelles for quality control. This type of autophagy includes mitophagy, pexophagy, reticulophagy (endoplasmic reticulum), ribophagy, lysophagy, and nucleophagy. These kinds of organelle-specific autophagy are reported to be beneficial for inflammatory disorders by eliminating damaged organelles and maintaining homeostasis. In this review, we summarized the recent findings and mechanisms covering different kinds of organelle-specific autophagy, as well as their involvement in various diseases, aiming to arouse concern about the significance of the quality control of multiple organelles in the treatment of inflammatory diseases.Abbreviations: ABCD3: ATP binding cassette subfamily D member 3; AD: Alzheimer disease; ALS: amyotrophic lateral sclerosis; AMBRA1: autophagy and beclin 1 regulator 1; AMPK: AMP-activated protein kinase; ARIH1: ariadne RBR E3 ubiquitin protein ligase 1; ATF: activating transcription factor; ATG: autophagy related; ATM: ATM serine/threonine kinase; BCL2: BCL2 apoptosis regulator; BCL2L11/BIM: BCL2 like 11; BCL2L13: BCL2 like 13; BECN1: beclin 1; BNIP3: BCL2 interacting protein 3; BNIP3L/NIX: BCL2 interacting protein 3 like; CALCOCO2/NDP52: calcium binding and coiled-coil domain 2; CANX: calnexin; CAT: catalase; CCPG1: cell cycle progression 1; CHDH: choline dehydrogenase; COPD: chronic obstructive pulmonary disease; CSE: cigarette smoke exposure; CTSD: cathepsin D; DDIT3/CHOP: DNA-damage inducible transcript 3; DISC1: DISC1 scaffold protein; DNM1L/DRP1: dynamin 1 like; EIF2AK3/PERK: eukaryotic translation initiation factor 2 alpha kinase 3; EIF2S1/eIF2α: eukaryotic translation initiation factor 2 alpha kinase 3; EMD: emerin; EPAS1/HIF-2α: endothelial PAS domain protein 1; ER: endoplasmic reticulum; ERAD: ER-associated degradation; ERN1/IRE1α: endoplasmic reticulum to nucleus signaling 1; FBXO27: F-box protein 27; FKBP8: FKBP prolyl isomerase 8; FTD: frontotemporal dementia; FUNDC1: FUN14 domain containing 1; G3BP1: G3BP stress granule assembly factor 1; GBA: glucocerebrosidase beta; HIF1A/HIF1: hypoxia inducible factor 1 subunit alpha; IMM: inner mitochondrial membrane; LCLAT1/ALCAT1: lysocardiolipin acyltransferase 1; LGALS3/Gal3: galectin 3; LIR: LC3-interacting region; LMNA: lamin A/C; LMNB1: lamin B1; LPS: lipopolysaccharide; MAPK8/JNK: mitogen-activated protein kinase 8; MAMs: mitochondria-associated membranes; MAP1LC3B/LC3B: microtubule-associated protein 1 light chain 3 beta; MFN1: mitofusin 1; MOD: multiple organelles dysfunction; MTPAP: mitochondrial poly(A) polymerase; MUL1: mitochondrial E3 ubiquitin protein ligase 1; NBR1: NBR1 autophagy cargo receptor; NLRP3: NLR family pyrin domain containing 3; NUFIP1: nuclear FMR1 interacting protein 1; OMM: outer mitochondrial membrane; OPTN: optineurin; PD: Parkinson disease; PARL: presenilin associated rhomboid like; PEX3: peroxisomal biogenesis factor 3; PGAM5: PGAM family member 5; PHB2: prohibitin 2; PINK1: PTEN induced putative kinase 1; PRKN: parkin RBR E3 ubiquitin protein ligase; RB1CC1/FIP200: RB1 inducible coiled-coil 1; RETREG1/FAM134B: reticulophagy regulator 1; RHOT1/MIRO1: ras homolog family member T1; RIPK3/RIP3: receptor interacting serine/threonine kinase 3; ROS: reactive oxygen species; RTN3: reticulon 3; SEC62: SEC62 homolog, preprotein translocation factor; SESN2: sestrin2; SIAH1: siah E3 ubiquitin protein ligase 1; SNCA: synuclein alpha; SNCAIP: synuclein alpha interacting protein; SQSTM1/p62: sequestosome 1; STING1: stimulator of interferon response cGAMP interactor 1; TAX1BP1: Tax1 binding protein 1; TBK1: TANK binding kinase 1; TFEB: transcription factor EB; TICAM1/TRIF: toll-like receptor adaptor molecule 1; TIMM23: translocase of inner mitochondrial membrane 23; TNKS: tankyrase; TOMM: translocase of the outer mitochondrial membrane; TRIM: tripartite motif containing; UCP2: uncoupling protein 2; ULK1: unc-51 like autophagy activating kinase; UPR: unfolded protein response; USP10: ubiquitin specific peptidase 10; VCP/p97: valosin containing protein; VDAC: voltage dependent anion channels; XIAP: X-linked inhibitor of apoptosis; ZNHIT3: zinc finger HIT-type containing 3.
Collapse
Affiliation(s)
- Ren-Qi Yao
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, People's Republic of China.,Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai, People's Republic of China
| | - Chao Ren
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Zhao-Fan Xia
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai, People's Republic of China
| | - Yong-Ming Yao
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, People's Republic of China
| |
Collapse
|
115
|
Miki H, Han KH, Scott D, Croft M, Kang YJ. 4-1BBL Regulates the Polarization of Macrophages, and Inhibition of 4-1BBL Signaling Alleviates Imiquimod-Induced Psoriasis. THE JOURNAL OF IMMUNOLOGY 2020; 204:1892-1903. [PMID: 32041783 DOI: 10.4049/jimmunol.1900983] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 01/15/2020] [Indexed: 12/16/2022]
Abstract
4-1BBL, a member of the TNF superfamily, regulates the sustained production of inflammatory cytokines in macrophages triggered by TLR signaling. In this study, we have investigated the role of 4-1BBL in macrophage metabolism and polarization and in skin inflammation using a model of imiquimod-induced psoriasis in mice. Genetic ablation or blocking of 4-1BBL signaling by Ab or 4-1BB-Fc alleviated the pathology of psoriasis by regulating the expression of inflammatory cytokines associated with macrophage activation and regulated the polarization of macrophages in vitro. We further linked this result with macrophage by finding that 4-1BBL expression during the immediate TLR response was dependent on glycolysis, mitochondrial oxidative phosphorylation, and fatty acid metabolism, whereas the late-phase 4-1BBL-mediated sustained inflammatory response was dependent on glycolysis and fatty acid synthesis. Correlating with this, administration of a fatty acid synthase inhibitor, cerulenin, also alleviated the pathology of psoriasis. We further found that 4-1BBL-mediated psoriasis development is independent of its receptor 4-1BB, as a deficiency of 4-1BB augmented the severity of psoriasis linked to a reduced regulatory T cell population and increased IL-17A expression in γδ T cells. Additionally, coblocking of 4-1BBL signaling and IL-17A activity additively ameliorated psoriasis. Taken together, 4-1BBL signaling regulates macrophage polarization and contributes to imiquimod-induced psoriasis by sustaining inflammation, providing a possible avenue for psoriasis treatment in patients.
Collapse
Affiliation(s)
- Haruka Miki
- Division of Immune Regulation, La Jolla Institute for Immunology, La Jolla, CA 92037
| | - Kyung Ho Han
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - David Scott
- Cancer Metabolism Core, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Immunology, La Jolla, CA 92037; .,Department of Medicine, University of California San Diego, La Jolla, CA 92037
| | - Young Jun Kang
- Department of Immunology and Microbial Sciences, The Scripps Research Institute, La Jolla, CA 92037; and .,Molecular Medicine Research Institute, Sunnyvale, CA 94085
| |
Collapse
|
116
|
Mendonça LSO, Santos JM, Kaneto CM, de Carvalho LD, Lima-Santos J, Augusto DG, Carvalho SMS, Soares-Martins JAP, Silva-Jardim I. Characterization of serum cytokines and circulating microRNAs that are predicted to regulate inflammasome genes in cutaneous leishmaniasis patients. Exp Parasitol 2020; 210:107846. [PMID: 32001303 DOI: 10.1016/j.exppara.2020.107846] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 08/08/2019] [Accepted: 01/24/2020] [Indexed: 01/01/2023]
Abstract
Leishmaniasis is a neglected disease caused by an intracellular protozoan parasite of the genus Leishmania. Infection starts when this protozoan replicates in a phagolysosomal compartment in macrophages, after evading host immune responses. The balance of Th1 and Th2 immune responses is crucial in leishmaniasis because it will determine whether the infection will be under control or if clinical complications will occur. The inflammasome, which is activated during Leishmania infection, involves the action of caspase-1 and release of the proinflammatory cytokines interleukin-1β and interleukin-18. Together, they contribute to the maintenance of an inflammatory response and pyroptosis. Here, we evaluated the serum levels of cytokines and the expression of circulating microRNAs related to inflammasome regulation in twenty-seven patients with cutaneous leishmaniasis in comparison to nine healthy individuals, in the context of the inflammasome activation. Evaluation of serum cytokines activation (IL-1β, IL-2, IL-4, IL-6, IL-10, and IL-17) was performed by flow cytometry using CBA kits (cytometric beads array) while the expression of circulating microRNAs (miR-7, miR-133a, miR-146b, miR-155, miR-223, miR-328, and miR-342) in plasma was measured by quantitative polymerase chain reaction. Our results showed an increase of the expression of miR-7-5p (p < 10-5), miR-133a (p = 0.034), miR-146b (p = 0.003), miR-223-3p (p = 10-5), and miR-328-3p (p = 0.002), and cytokine levels for IL-1β (p = 0.0005), IL-6 (p = 0.001), and IL-17 (p = 0.001) in patients with cutaneous leishmaniasis compared to the controls. These results suggest that microRNAs and cytokines can play an important role in regulating the human immune responses to Leishmania infection. Our findings may contribute to the understanding of the mechanisms of the gene regulation during the cutaneous leishmaniasis and to the identification of possible biomarkers of the infection.
Collapse
Affiliation(s)
| | | | - Carla Martins Kaneto
- Department of Biological Sciences, Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, Brazil
| | | | - Jane Lima-Santos
- Department of Biological Sciences, Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, Brazil
| | - Danillo G Augusto
- Department of Biological Sciences, Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, Brazil; Department of Genetics, Universidade Federal do Paraná (UFPR), Curitiba, PR, Brazil
| | | | | | - Izaltina Silva-Jardim
- Department of Biological Sciences, Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, Brazil.
| |
Collapse
|
117
|
Ke Q, Yuan Q, Qin N, Shi C, Luo J, Fang Y, Xu L, Sun Q, Zen K, Jiang L, Zhou Y, Yang J. UCP2-induced hypoxia promotes lipid accumulation and tubulointerstitial fibrosis during ischemic kidney injury. Cell Death Dis 2020; 11:26. [PMID: 31932578 PMCID: PMC6957698 DOI: 10.1038/s41419-019-2219-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 12/21/2022]
Abstract
Mitochondrial dysfunction leads to loss of renal function and structure; however, the precise mechanisms by which mitochondrial function can regulate renal fibrosis remain unclear. Proximal tubular cells (PTCs) prefer fatty acid oxidation as their energy source and dysregulation of lipid metabolism has been linked to tubulointerstitial fibrosis (TIF). Here, we demonstrated that mitochondrial uncoupling protein 2 (UCP2) regulates TIF through the stimulation of lipid deposition and extracellular matrix (ECM) accumulation. We show that UCP2 expression was increased in human biopsy sample and mouse kidney tissues with TIF. Moreover, UCP2-deficient mice displayed mitigated renal fibrosis in I/R-induced mouse model of TIF. Consistent with these results, UCP2 deficiency displayed reduced lipid deposition and ECM accumulation in vivo and in vitro. In UCP2-deficient PTCs, inhibition of TIF resulted from downregulation of hypoxia-inducible factor-1α (HIF-1α), a key regulator of lipid metabolism and ECM accumulation. Furthermore, we describe a molecular mechanism by which UCP2 regulates HIF-1α stabilization through regulation of mitochondrial respiration and tissue hypoxia during TIF. HIF-1α inhibition by siRNA suppressed lipid and ECM accumulation by restoration of PPARα and CPT1α, as well as suppression of fibronectin and collagen I expression in PTCs. In conclusion, our results suggest that UCP2 regulates TIF by inducing the HIF-1α stabilization pathway in tubular cells. These results identify UCP2 as a potential therapeutic target in treating chronic renal fibrosis.
Collapse
Affiliation(s)
- Qingqing Ke
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Qi Yuan
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Nan Qin
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Caifeng Shi
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Jing Luo
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yi Fang
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Lingling Xu
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Qi Sun
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Ke Zen
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University Advanced Institute of Life Sciences, Nanjing, China
| | - Lei Jiang
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China.
| | - Yang Zhou
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China.
| | - Junwei Yang
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China.
| |
Collapse
|
118
|
Batista-Gonzalez A, Vidal R, Criollo A, Carreño LJ. New Insights on the Role of Lipid Metabolism in the Metabolic Reprogramming of Macrophages. Front Immunol 2020; 10:2993. [PMID: 31998297 PMCID: PMC6966486 DOI: 10.3389/fimmu.2019.02993] [Citation(s) in RCA: 211] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/05/2019] [Indexed: 12/17/2022] Open
Abstract
Macrophage activation is intimately linked to metabolic reprogramming. Inflammatory (M1) macrophages are able to sustain inflammatory responses and to kill pathogens, mostly by relying on aerobic glycolysis and fatty acid biosynthesis. Glycolysis is a fast way of producing ATP, and fatty acids serve as precursors for the synthesis of inflammatory mediators. On the opposite side, anti-inflammatory (M2) macrophages mediate the resolution of inflammation and tissue repair, switching their metabolism to fatty acid oxidation and oxidative phosphorylation. Over the years, this classical view has been challenged by recent discoveries pointing to a more complex metabolic network during macrophage activation. Lipid metabolism plays a critical role in the activation of both M1 and M2 macrophages. Recent evidence shows that fatty acid oxidation is also essential for inflammasome activation in M1 macrophages, and glycolysis is now known to fuel fatty acid oxidation in M2 macrophages. Ultimately, targeting lipid metabolism in macrophages can improve the outcome of metabolic diseases. Here, we review the main aspects of macrophage immunometabolism from the perspective of the metabolism of lipids. Building a reliable metabolic network during macrophage activation will bring us closer to targeting macrophages for improving human health.
Collapse
Affiliation(s)
- Ana Batista-Gonzalez
- Facultad de Odontología, Instituto de Investigación de Ciencias Odontológicas, Universidad de Chile, Santiago, Chile.,Facultad de Ciencias Químicas y Farmacéuticas and Facultad de Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | - Roberto Vidal
- Millennium Institute on Immunology and Immunotherapy, Universidad de Chile, Santiago, Chile.,Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Alfredo Criollo
- Facultad de Odontología, Instituto de Investigación de Ciencias Odontológicas, Universidad de Chile, Santiago, Chile.,Facultad de Ciencias Químicas y Farmacéuticas and Facultad de Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | - Leandro J Carreño
- Millennium Institute on Immunology and Immunotherapy, Universidad de Chile, Santiago, Chile.,Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| |
Collapse
|
119
|
Redox Signaling from Mitochondria: Signal Propagation and Its Targets. Biomolecules 2020; 10:biom10010093. [PMID: 31935965 PMCID: PMC7023504 DOI: 10.3390/biom10010093] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/02/2020] [Accepted: 01/02/2020] [Indexed: 02/07/2023] Open
Abstract
Progress in mass spectroscopy of posttranslational oxidative modifications has enabled researchers to experimentally verify the concept of redox signaling. We focus here on redox signaling originating from mitochondria under physiological situations, discussing mechanisms of transient redox burst in mitochondria, as well as the possible ways to transfer such redox signals to specific extramitochondrial targets. A role of peroxiredoxins is described which enables redox relay to other targets. Examples of mitochondrial redox signaling are discussed: initiation of hypoxia-inducible factor (HIF) responses; retrograde redox signaling to PGC1α during exercise in skeletal muscle; redox signaling in innate immune cells; redox stimulation of insulin secretion, and other physiological situations.
Collapse
|
120
|
NLRP3 is associated with coronary artery disease in Vietnam veterans. Gene 2020; 725:144163. [DOI: 10.1016/j.gene.2019.144163] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 08/01/2019] [Accepted: 10/08/2019] [Indexed: 12/17/2022]
|
121
|
Uncoupling protein-2 regulates M1 macrophage infiltration of gingiva with periodontitis. Cent Eur J Immunol 2020; 45:9-21. [PMID: 32425675 PMCID: PMC7226558 DOI: 10.5114/ceji.2020.94664] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 02/15/2019] [Indexed: 12/17/2022] Open
Abstract
Periodontitis is an inflammatory disease accompanied by alveolar bone loss. Moreover, M1 macrophages play a critical role in the development of periodontal disease. Uncoupling protein-2 (UCP2) is a mitochondrial transporter protein that controls M1 macrophage activation by modulating reactive oxygen species (ROS) production. We investigated the role of UCP2 in M1 macrophage infiltration in gingival tissues with periodontitis. We found that the expression of UCP2 was upregulated in M1 macrophages infiltrating human periodontal tissues with periodontitis. Macrophage-specific knockout of UCP2 could increase the infiltration of macrophage and exacerbate inflammatory response in a mouse gingiva affected with periodontitis, induced by Porphyromonas gingivalis-LPS (Pg-LPS) injection. The loss of UCP2 may contribute to the enhanced abilities of proliferation, migration, pro-inflammatory cytokine secretion, and ROS production in Pg-LPS-treated macrophages. Our results indicate that UCP2 has an important role in M1 macrophage polarization in the periodontal tissue with periodontitis. It might be helpful to provide theoretical basis for design of new therapeutic strategies for periodontitis.
Collapse
|
122
|
Michaeloudes C, Bhavsar PK, Mumby S, Xu B, Hui CKM, Chung KF, Adcock IM. Role of Metabolic Reprogramming in Pulmonary Innate Immunity and Its Impact on Lung Diseases. J Innate Immun 2019; 12:31-46. [PMID: 31786568 DOI: 10.1159/000504344] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 10/24/2019] [Indexed: 12/12/2022] Open
Abstract
Lung innate immunity is the first line of defence against inhaled allergens, pathogens and environmental pollutants. Cellular metabolism plays a key role in innate immunity. Catabolic pathways, including glycolysis and fatty acid oxidation (FAO), are interconnected with biosynthetic and redox pathways. Innate immune cell activation and differentiation trigger extensive metabolic changes that are required to support their function. Pro-inflammatory polarisation of macrophages and activation of dendritic cells, mast cells and neutrophils are associated with increased glycolysis and a shift towards the pentose phosphate pathway and fatty acid synthesis. These changes provide the macromolecules required for proliferation and inflammatory mediator production and reactive oxygen species for anti-microbial effects. Conversely, anti-inflammatory macrophages use primarily FAO and oxidative phosphorylation to ensure efficient energy production and redox balance required for prolonged survival. Deregulation of metabolic reprogramming in lung diseases, such as asthma and chronic obstructive pulmonary disease, may contribute to impaired innate immune cell function. Understanding how innate immune cell metabolism is altered in lung disease may lead to identification of new therapeutic targets. This is important as drugs targeting a number of metabolic pathways are already in clinical development for the treatment of other diseases such as cancer.
Collapse
Affiliation(s)
- Charalambos Michaeloudes
- Experimental Studies and Cell and Molecular Biology, Airway Disease Section, National Heart and Lung Institute, Imperial College London and Biomedical Research Unit, Royal Brompton Hospital, London, United Kingdom,
| | - Pankaj K Bhavsar
- Experimental Studies and Cell and Molecular Biology, Airway Disease Section, National Heart and Lung Institute, Imperial College London and Biomedical Research Unit, Royal Brompton Hospital, London, United Kingdom
| | - Sharon Mumby
- Experimental Studies and Cell and Molecular Biology, Airway Disease Section, National Heart and Lung Institute, Imperial College London and Biomedical Research Unit, Royal Brompton Hospital, London, United Kingdom
| | - Bingling Xu
- Respiratory and Critical Care Medicine, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Christopher Kim Ming Hui
- Respiratory and Critical Care Medicine, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Kian Fan Chung
- Experimental Studies and Cell and Molecular Biology, Airway Disease Section, National Heart and Lung Institute, Imperial College London and Biomedical Research Unit, Royal Brompton Hospital, London, United Kingdom
| | - Ian M Adcock
- Experimental Studies and Cell and Molecular Biology, Airway Disease Section, National Heart and Lung Institute, Imperial College London and Biomedical Research Unit, Royal Brompton Hospital, London, United Kingdom
| |
Collapse
|
123
|
Lee MY, Leonardi A, Begley TJ, Melendez JA. Loss of epitranscriptomic control of selenocysteine utilization engages senescence and mitochondrial reprogramming ☆. Redox Biol 2019; 28:101375. [PMID: 31765888 PMCID: PMC6904832 DOI: 10.1016/j.redox.2019.101375] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 11/17/2022] Open
Abstract
Critically important to the maintenance of the glutathione (GSH) redox cycle are the activities of many selenocysteine-containing GSH metabolizing enzymes whose translation is controlled by the epitranscriptomic writer alkylation repair homolog 8 (ALKBH8). ALKBH8 is a tRNA methyltransferase that methylates the wobble uridine of specific tRNAs to regulate the synthesis of selenoproteins. Here we demonstrate that a deficiency in the writer ALKBH8 (Alkbh8def), alters selenoprotein levels and engages senescence, regulates stress response genes and promotes mitochondrial reprogramming. Alkbh8def mouse embryonic fibroblasts (MEFs) increase many hallmarks of senescence, including senescence associated β-galactosidase, heterocromatic foci, the cyclin dependent kinase inhibitor p16Ink4a, markers of mitochondrial dynamics as well as the senescence associated secretory phenotype (SASP). Alkbh8def cells also acquire a stress resistance phenotype that is accompanied by an increase in a number redox-modifying transcripts. In addition, Alkbh8def MEFs undergo a metabolic shift that is highlighted by a striking increase in the level of uncoupling protein 2 (UCP2) which enhances oxygen consumption and promotes a reliance on glycolytic metabolism. Finally, we have shown that the Alkbh8 deficiency can be exploited and corresponding MEFs are killed by glycolytic inhibition. Our work demonstrates that defects in an epitransciptomic writer promote senescence and mitochondrial reprogramming and unveils a novel adaptive mechanism for coping with defects in selenocysteine utilization. Deficiencies in selenocysteine utilization engages cellular senescence and the senescence associated secretory phenotype. Alkbh8 deficiency promotes mitochondrial elongation, increased oxygen consumption and a reliance on glycolytic metabolism. Cellular adaptions to Alkbh8 deficiency confer stress resistance.
Collapse
Affiliation(s)
- May Y Lee
- Nanobioscience Constellation, Colleges of Nanoscale Science & Engineering, SUNY Polytechnic Institute, 257 Fuller Rd., Albany, NY, 12203, USA
| | - Andrea Leonardi
- Nanobioscience Constellation, Colleges of Nanoscale Science & Engineering, University at Albany, 257 Fuller Rd., Albany, NY, 12203, USA
| | - Thomas J Begley
- Nanobioscience Constellation, Colleges of Nanoscale Science & Engineering, SUNY Polytechnic Institute, 257 Fuller Rd., Albany, NY, 12203, USA; Nanobioscience Constellation, Colleges of Nanoscale Science & Engineering, University at Albany, 257 Fuller Rd., Albany, NY, 12203, USA; The RNA Institute, College of Arts & Sciences, University at Albany, 1400 Washington Ave., Albany, NY, 12222, USA
| | - J Andrés Melendez
- Nanobioscience Constellation, Colleges of Nanoscale Science & Engineering, SUNY Polytechnic Institute, 257 Fuller Rd., Albany, NY, 12203, USA.
| |
Collapse
|
124
|
Fitzpatrick SF. Immunometabolism and Sepsis: A Role for HIF? Front Mol Biosci 2019; 6:85. [PMID: 31555665 PMCID: PMC6742688 DOI: 10.3389/fmolb.2019.00085] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 08/26/2019] [Indexed: 12/14/2022] Open
Abstract
Metabolic reprogramming of innate immune cells occurs during both the hyperinflammatory and immunotolerant phases of sepsis. The hypoxia inducible factor (HIF) signaling pathway plays a vital role in regulating these metabolic changes. This review initially summarizes the HIF-driven changes in metabolic dynamics of innate immune cells in response to sepsis. The hyperinflammatory phase of sepsis is accompanied by a metabolic switch from oxidative phosphorylation to HIF-1α mediated glycolysis. Furthermore, HIF driven alterations in arginine metabolism also occur during this phase. This promotes sepsis pathophysiology and the development of clinical symptoms. These early metabolic changes are followed by a late immunotolerant phase, in which suppressed HIF signaling promotes a switch from aerobic glycolysis to fatty acid oxidation, with a subsequent anti-inflammatory response developing. Recently the molecular mechanisms controlling HIF activation during these early and late phases have begun to be elucidated. In the final part of this review the contribution of toll-like receptors, transcription factors, metabolic intermediates, kinases and reactive oxygen species, in governing the HIF-induced metabolic reprogramming of innate immune cells will be discussed. Importantly, understanding these regulatory mechanisms can lead to the development of novel diagnostic and therapeutic strategies targeting the HIF-dependent metabolic state of innate immune cells.
Collapse
Affiliation(s)
- Susan F Fitzpatrick
- School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| |
Collapse
|
125
|
DROSHA-Dependent AIM2 Inflammasome Activation Contributes to Lung Inflammation during Idiopathic Pulmonary Fibrosis. Cells 2019; 8:cells8080938. [PMID: 31434287 PMCID: PMC6721825 DOI: 10.3390/cells8080938] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/18/2019] [Accepted: 08/19/2019] [Indexed: 11/20/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) has been linked to chronic lung inflammation. Drosha ribonuclease III (DROSHA), a class 2 ribonuclease III enzyme, plays a key role in microRNA (miRNA) biogenesis. However, the mechanisms by which DROSHA affects the lung inflammation during idiopathic pulmonary fibrosis (IPF) remain unclear. Here, we demonstrate that DROSHA regulates the absent in melanoma 2 (AIM2) inflammasome activation during idiopathic pulmonary fibrosis (IPF). Both DROSHA and AIM2 protein expression were elevated in alveolar macrophages of patients with IPF. We also found that DROSHA and AIM2 protein expression were increased in alveolar macrophages of lung tissues in a mouse model of bleomycin-induced pulmonary fibrosis. DROSHA deficiency suppressed AIM2 inflammasome-dependent caspase-1 activation and interleukin (IL)-1β and IL-18 secretion in primary mouse alveolar macrophages and bone marrow-derived macrophages (BMDMs). Transduction of microRNA (miRNA) increased the formation of the adaptor apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) specks, which is required for AIM2 inflammasome activation in BMDMs. Our results suggest that DROSHA promotes AIM2 inflammasome activation-dependent lung inflammation during IPF.
Collapse
|
126
|
Kim YC, Lee SE, Kim SK, Jang HD, Hwang I, Jin S, Hong EB, Jang KS, Kim HS. Toll-like receptor mediated inflammation requires FASN-dependent MYD88 palmitoylation. Nat Chem Biol 2019; 15:907-916. [PMID: 31427815 DOI: 10.1038/s41589-019-0344-0] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 07/11/2019] [Indexed: 12/24/2022]
Abstract
Toll-like receptor (TLR)/myeloid differentiation primary response protein (MYD88) signaling aggravates sepsis by impairing neutrophil migration to infection sites. However, the role of intracellular fatty acids in TLR/MYD88 signaling is unclear. Here, inhibition of fatty acid synthase by C75 improved neutrophil chemotaxis and increased the survival of mice with sepsis in cecal ligation puncture and lipopolysaccharide-induced septic shock models. C75 specifically blocked TLR/MYD88 signaling in neutrophils. Treatment with GSK2194069 that targets a different domain of fatty acid synthase, did not block TLR signaling or MYD88 palmitoylation. De novo fatty acid synthesis and CD36-mediated exogenous fatty acid incorporation contributed to MYD88 palmitoylation. The binding of IRAK4 to the MYD88 intermediate domain and downstream signal activation required MYD88 palmitoylation at cysteine 113. MYD88 was palmitoylated by ZDHHC6, and ZDHHC6 knockdown decreased MYD88 palmitoylation and TLR/MYD88 activation upon lipopolysaccharide stimulus. Thus, intracellular saturated fatty acid-dependent palmitoylation of MYD88 by ZDHHC6 is a therapeutic target of sepsis.
Collapse
Affiliation(s)
- Young-Chan Kim
- Strategic Center of Cell & Bio Therapy, Seoul National University Hospital, Seoul, Korea.,Korea Research-Driven Hospital, Seoul National University Hospital, Seoul, Korea
| | - Sang Eun Lee
- Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Somi K Kim
- Strategic Center of Cell & Bio Therapy, Seoul National University Hospital, Seoul, Korea.,Korea Research-Driven Hospital, Seoul National University Hospital, Seoul, Korea
| | - Hyun-Duk Jang
- Strategic Center of Cell & Bio Therapy, Seoul National University Hospital, Seoul, Korea.,Korea Research-Driven Hospital, Seoul National University Hospital, Seoul, Korea
| | - Injoo Hwang
- Strategic Center of Cell & Bio Therapy, Seoul National University Hospital, Seoul, Korea.,Korea Research-Driven Hospital, Seoul National University Hospital, Seoul, Korea
| | - Sooryeonhwa Jin
- Strategic Center of Cell & Bio Therapy, Seoul National University Hospital, Seoul, Korea.,Korea Research-Driven Hospital, Seoul National University Hospital, Seoul, Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea
| | - Eun-Byeol Hong
- Strategic Center of Cell & Bio Therapy, Seoul National University Hospital, Seoul, Korea.,Korea Research-Driven Hospital, Seoul National University Hospital, Seoul, Korea
| | - Kyoung-Soon Jang
- Biomedical Omics Center, Korea Basic Science Institute, Cheongju, South Korea
| | - Hyo-Soo Kim
- Strategic Center of Cell & Bio Therapy, Seoul National University Hospital, Seoul, Korea. .,Korea Research-Driven Hospital, Seoul National University Hospital, Seoul, Korea. .,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea. .,World Class University Program, Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, Korea.
| |
Collapse
|
127
|
Wang A, Luan HH, Medzhitov R. An evolutionary perspective on immunometabolism. Science 2019; 363:363/6423/eaar3932. [PMID: 30630899 DOI: 10.1126/science.aar3932] [Citation(s) in RCA: 237] [Impact Index Per Article: 47.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Metabolism is at the core of all biological functions. Anabolic metabolism uses building blocks that are either derived from nutrients or synthesized de novo to produce the biological infrastructure, whereas catabolic metabolism generates energy to fuel all biological processes. Distinct metabolic programs are required to support different biological functions. Thus, recent studies have revealed how signals regulating cell quiescence, proliferation, and differentiation also induce the appropriate metabolic programs. In particular, a wealth of new studies in the field of immunometabolism has unveiled many examples of the connection among metabolism, cell fate decisions, and organismal physiology. We discuss these findings under a unifying framework derived from the evolutionary and ecological principles of life history theory.
Collapse
Affiliation(s)
- Andrew Wang
- Department of Medicine (Rheumatology), Yale University School of Medicine, New Haven, CT 06520, USA
| | - Harding H Luan
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Ruslan Medzhitov
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA. .,Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06520, USA
| |
Collapse
|
128
|
Carroll RG, Timmons GA, Cervantes-Silva MP, Kennedy OD, Curtis AM. Immunometabolism around the Clock. Trends Mol Med 2019; 25:612-625. [DOI: 10.1016/j.molmed.2019.04.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 04/11/2019] [Accepted: 04/30/2019] [Indexed: 12/20/2022]
|
129
|
Zhao W, Ma L, Cai C, Gong X. Caffeine Inhibits NLRP3 Inflammasome Activation by Suppressing MAPK/NF-κB and A2aR Signaling in LPS-Induced THP-1 Macrophages. Int J Biol Sci 2019; 15:1571-1581. [PMID: 31360100 PMCID: PMC6643212 DOI: 10.7150/ijbs.34211] [Citation(s) in RCA: 148] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/02/2019] [Indexed: 11/29/2022] Open
Abstract
Excessive inflammation induced by various risk factors is associated with the development of bronchopulmonary dysplasia (BPD). Caffeine exerts potent anti-inflammatory effects as a clinical preventive medicine for BPD. Recently, NLRP3 inflammasome activation has been demonstrated to be essential for the pathogenesis of BPD. In the present study, we aimed to investigate the effects of caffeine on NLRP3 inflammasome activation in LPS-induced THP-1 macrophages and to explore the underlying the detailed mechanism. We found that caffeine significantly reduced NLRP3 expression, ASC speck formation, and caspase 1 cleavage and therefore decreased IL-1β and IL-18 secretion in THP-1 macrophages. Caffeine also markedly decreased the phosphorylation levels of MAPK and NF-κB pathway members, further suppressing the translocation of NF-κB in THP-1 macrophages. Moreover, silencing of the caffeine-antagonized adenosine A2a receptor (A2aR) significantly decreased cleaved caspase 1 expression in THP-1 macrophages by reducing ROS production. Given these findings, we conclude that caffeine inhibits NLRP3 inflammasome activation by suppressing MAPK/NF-κB signaling and A2aR-associated ROS production in LPS-induced THP-1 macrophages.
Collapse
Affiliation(s)
- Weiming Zhao
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Li Ma
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Cheng Cai
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaohui Gong
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
130
|
UCP2 ameliorates mitochondrial dysfunction, inflammation, and oxidative stress in lipopolysaccharide-induced acute kidney injury. Int Immunopharmacol 2019; 71:336-349. [DOI: 10.1016/j.intimp.2019.03.043] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 03/21/2019] [Indexed: 12/19/2022]
|
131
|
Cornelius DC, Baik CH, Travis OK, White DL, Young CM, Austin Pierce W, Shields CA, Poudel B, Williams JM. NLRP3 inflammasome activation in platelets in response to sepsis. Physiol Rep 2019; 7:e14073. [PMID: 31054188 PMCID: PMC6499866 DOI: 10.14814/phy2.14073] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 01/20/2023] Open
Abstract
Sepsis is a complex syndrome characterized by organ dysfunction and a dysregulated immune host response to infection. There is currently no effective treatment for sepsis, but platelets have been proposed as a potential therapeutic target for the treatment of sepsis. We hypothesized that the NLRP3 inflammasome is activated in platelets during sepsis and may be associated with multiorgan injury in response to polymicrobial sepsis. Polymicrobial sepsis was induced by cecal ligation and puncture (CLP) in 12- to 13-week-old male Sprague-Dawley rats. The necrotic cecum was removed at 24 h post-CLP. At 72 h post-CLP, activated platelets were significantly increased in CLP versus Sham rats. Colocalization of NLRP3 inflammasome components was observed in platelets from CLP rats at 72 h post-CLP. Plasma, pulmonary, and renal levels of IL-1β and IL-18 were significantly higher in CLP rats compared to Sham controls. Soluble markers of endothelial permeability were increased in CLP versus Sham. Renal and pulmonary histopathology were markedly elevated in CLP rats compared to Sham controls. NLRP3 is activated in platelets in response to CLP and is associated with inflammation, endothelial permeability and multiorgan injury. Our results indicate that activated platelets may play a role to cause multiorgan injury in sepsis and may have therapeutic potential for the treatment of sepsis multiorgan injury.
Collapse
Affiliation(s)
- Denise C. Cornelius
- Department of Emergency MedicineUniversity of Mississippi Medical CenterJacksonMississippi
- Department of PharmacologyUniversity of Mississippi Medical CenterJacksonMississippi
- Cardiovascular Renal‐Research CenterUniversity of Mississippi Medical CenterJacksonMississippi
| | - Cedar H. Baik
- Department of Emergency MedicineUniversity of Mississippi Medical CenterJacksonMississippi
| | - Olivia K. Travis
- Department of PharmacologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - Dakota L. White
- Department of Emergency MedicineUniversity of Mississippi Medical CenterJacksonMississippi
| | - Cassandra M. Young
- Department of PharmacologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - W. Austin Pierce
- Department of Emergency MedicineUniversity of Mississippi Medical CenterJacksonMississippi
| | - Corbin A. Shields
- Department of PharmacologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - Bibek Poudel
- Department of PharmacologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - Jan M. Williams
- Department of PharmacologyUniversity of Mississippi Medical CenterJacksonMississippi
- Cardiovascular Renal‐Research CenterUniversity of Mississippi Medical CenterJacksonMississippi
| |
Collapse
|
132
|
Koo SJ, Garg NJ. Metabolic programming of macrophage functions and pathogens control. Redox Biol 2019; 24:101198. [PMID: 31048245 PMCID: PMC6488820 DOI: 10.1016/j.redox.2019.101198] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 04/09/2019] [Indexed: 12/15/2022] Open
Abstract
Macrophages (Mφ) are central players in mediating proinflammatory and immunomodulatory functions. Unchecked Mφ activities contribute to pathology across many diseases, including those caused by infectious pathogens and metabolic disorders. A fine balance of Mφ responses is crucial, which may be achieved by enforcing appropriate bioenergetics pathways. Metabolism serves as the provider of energy, substrates, and byproducts that support differential Mφ characteristics. The metabolic properties that control the polarization and response of Mφ remain to be fully uncovered for use in managing infectious diseases. Here, we review the various metabolic states in Mφ and how they influence the cell function.
Collapse
Affiliation(s)
- Sue-Jie Koo
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, TX, USA
| | - Nisha J Garg
- Department of Microbiology & Immunology, UTMB, Galveston, TX, USA; Institute for Human Infections and Immunity, UTMB, Galveston, TX, USA.
| |
Collapse
|
133
|
Guo C, Chen S, Liu W, Ma Y, Li J, Fisher PB, Fang X, Wang XY. Immunometabolism: A new target for improving cancer immunotherapy. Adv Cancer Res 2019; 143:195-253. [PMID: 31202359 DOI: 10.1016/bs.acr.2019.03.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Fundamental metabolic pathways are essential for mammalian cells to provide energy, precursors for biosynthesis of macromolecules, and reducing power for redox regulation. While dysregulated metabolism (e.g., aerobic glycolysis also known as the Warburg effect) has long been recognized as a hallmark of cancer, recent discoveries of metabolic reprogramming in immune cells during their activation and differentiation have led to an emerging concept of "immunometabolism." Considering the recent success of cancer immunotherapy in the treatment of several cancer types, increasing research efforts are being made to elucidate alterations in metabolic profiles of cancer and immune cells during their interplays in the setting of cancer progression and immunotherapy. In this review, we summarize recent advances in studies of metabolic reprogramming in cancer as well as differentiation and functionality of various immune cells. In particular, we will elaborate how distinct metabolic pathways in the tumor microenvironment cause functional impairment of immune cells and contribute to immune evasion by cancer. Lastly, we highlight the potential of metabolically reprogramming the tumor microenvironment to promote effective and long-lasting antitumor immunity for improved immunotherapeutic outcomes.
Collapse
Affiliation(s)
- Chunqing Guo
- Department of Human & Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Shixian Chen
- Department of Rheumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Wenjie Liu
- Department of Human & Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Yibao Ma
- Department of Biochemistry & Molecular Biology, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Juan Li
- Department of Rheumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Paul B Fisher
- Department of Human & Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Xianjun Fang
- Department of Biochemistry & Molecular Biology, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Xiang-Yang Wang
- Department of Human & Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States.
| |
Collapse
|
134
|
Yang Q, Liu R, Yu Q, Bi Y, Liu G. Metabolic regulation of inflammasomes in inflammation. Immunology 2019; 157:95-109. [PMID: 30851192 DOI: 10.1111/imm.13056] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/25/2019] [Accepted: 03/05/2019] [Indexed: 12/21/2022] Open
Abstract
Inflammasome activation and subsequent inflammatory cytokine secretion are essential for innate immune defence against multiple stimuli and are regarded as a link to adaptive immune responses. Dysfunction of inflammasome activation has been discovered at the onset or progression of infectious diseases, autoimmune diseases and cancer, all of which are also associated with metabolic factors. Furthermore, many studies concerning the metabolic regulation of inflammasome activation have emerged in recent years, especially regarding the activity of the NLRP3 inflammasome under metabolic reprogramming. In this review, we discuss the molecular mechanisms of the interactions between metabolic pathways and inflammasome activation, which exerts further important effects on various diseases.
Collapse
Affiliation(s)
- Qiuli Yang
- Key Laboratory of Cell Proliferation and Regulation Biology of Ministry of Education, Institute of Cell Biology, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Ruichen Liu
- Key Laboratory of Cell Proliferation and Regulation Biology of Ministry of Education, Institute of Cell Biology, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Qing Yu
- Key Laboratory of Cell Proliferation and Regulation Biology of Ministry of Education, Institute of Cell Biology, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Yujing Bi
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Guangwei Liu
- Key Laboratory of Cell Proliferation and Regulation Biology of Ministry of Education, Institute of Cell Biology, College of Life Sciences, Beijing Normal University, Beijing, China
| |
Collapse
|
135
|
Hayek I, Fischer F, Schulze-Luehrmann J, Dettmer K, Sobotta K, Schatz V, Kohl L, Boden K, Lang R, Oefner PJ, Wirtz S, Jantsch J, Lührmann A. Limitation of TCA Cycle Intermediates Represents an Oxygen-Independent Nutritional Antibacterial Effector Mechanism of Macrophages. Cell Rep 2019; 26:3502-3510.e6. [DOI: 10.1016/j.celrep.2019.02.103] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 12/16/2018] [Accepted: 02/25/2019] [Indexed: 10/27/2022] Open
|
136
|
Hu L, Zhang S, Wen H, Liu T, Cai J, Du D, Zhu D, Chen F, Xia C. Melatonin decreases M1 polarization via attenuating mitochondrial oxidative damage depending on UCP2 pathway in prorenin-treated microglia. PLoS One 2019; 14:e0212138. [PMID: 30742657 PMCID: PMC6370243 DOI: 10.1371/journal.pone.0212138] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 01/28/2019] [Indexed: 12/24/2022] Open
Abstract
Accumulating evidence suggests that neuroinflammation and oxidative stress in cardiovascular center contribute to the pathological processes underlying hypertension. Microglia activation triggers the inflammation and oxidative stress. Melatonin is a documented potent anti-inflammatory regent and antioxidant, the underlying roles of melatonin in regulating microglia activation via mitochondria remain unclear. In present study, we investigated the protective role of melatonin in decreasing M1 phenotype switching via attenuating mitochondrial oxidative damage in dependence on uncoupling protein 2 (UCP2) pathway in microglia. Prorenin (20 nmol/L; 24 hr) was used to induce inflammation in cultured microglia. Mitochondrial morphology was detected by transmission electron microscope. The reactive oxygen species (ROS) production by using DCFH-DA fluorescence imaging and mitochondrial membrane potential (MMP, ΔΨm) was evaluated by JC-1 staining. The indicator of the redox status as the ratio of the amount of total NADP+ to total NADPH, and the expression of 6 subunits of NADPH oxidase is measured. The pro-inflammatory cytokines releasing was measured by qPCR. UCP2 and activated AMPKα (p-AMPKα) expression were examined by immunoblot. Melatonin (100 μM) markedly alleviated the M1 microglia phenotype shifting and abnormal mitochondria morphology. Melatonin attenuated prorenin-induced ΔΨm increasing and ROS overproduction. Melatonin decreased the redox ratio (NADP+/NADPH) and the p47phox and gp91phox subunits of NADPH oxidase expression in prorenin-treated microglia. These effects were reversed in the presence of UCP2 siRNA. Our results suggested that the protective effect of melatonin against prorenin-induced M1 phenotype switching via attenuating mitochondrial oxidative damage depending on UCP2 upregulation in prorenin-treated microglia.
Collapse
Affiliation(s)
- Li Hu
- Laboratory of Neuropharmacology and Neurotoxicology, Shanghai Key Laboratory of Bio-Energy Crops, College of Life Science, Shanghai University, Shanghai, P.R. China
| | - Shutian Zhang
- Department of Physiology and Pathophysiology, Basic Medicine College, Fudan University, Shanghai, P.R. China
| | - Haoyu Wen
- Department of Physiology and Pathophysiology, Basic Medicine College, Fudan University, Shanghai, P.R. China
| | - Tianfeng Liu
- Laboratory of Neuropharmacology and Neurotoxicology, Shanghai Key Laboratory of Bio-Energy Crops, College of Life Science, Shanghai University, Shanghai, P.R. China
| | - Jian Cai
- Department of neurology, Renji Hospital, Shanghai Jiaotong University, Shanghai, P.R. China
| | - Dongshu Du
- Laboratory of Neuropharmacology and Neurotoxicology, Shanghai Key Laboratory of Bio-Energy Crops, College of Life Science, Shanghai University, Shanghai, P.R. China
| | - Danian Zhu
- Department of Physiology and Pathophysiology, Basic Medicine College, Fudan University, Shanghai, P.R. China
| | - Fuxue Chen
- Laboratory of Neuropharmacology and Neurotoxicology, Shanghai Key Laboratory of Bio-Energy Crops, College of Life Science, Shanghai University, Shanghai, P.R. China
- * E-mail: (FXC); (CMX)
| | - Chunmei Xia
- Department of Physiology and Pathophysiology, Basic Medicine College, Fudan University, Shanghai, P.R. China
- * E-mail: (FXC); (CMX)
| |
Collapse
|
137
|
Abstract
The master pro-inflammatory cytokine, tumour necrosis factor (TNF), has been shown to modulate multiple signalling pathways, with wide-ranging downstream effects. TNF plays a vital role in the typical immune response through the regulation of a number of pathways encompassing an immediate inflammatory reaction with significant innate immune involvement as well as cellular activation with subsequent proliferation and programmed cell death or necrosis. As might be expected with such a broad spectrum of cellular effects and complex signalling pathways, TNF has also been implicated in a number of disease states, such as rheumatoid arthritis, ankylosing spondylitis, and Crohn’s disease. Since the time of its discovery over 40 years ago, TNF ligand and its receptors, TNF receptor (TNFR) 1 and 2, have been categorised into two complementary superfamilies, namely TNF (TNFSF) and TNFR (TNFRSF), and 19 ligands and 29 receptors have been identified to date. There have been significant advances in our understanding of TNF signalling pathways in the last decade, and this short review aims to elucidate some of the most recent advances involving TNF signalling in health and disease.
Collapse
Affiliation(s)
- Jonathan Holbrook
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), Leeds, UK.,Leeds Institute of Medical Research at St. James's, Leeds, UK.,Leeds Cystic Fibrosis Trust Strategic Research Centre, Leeds, UK
| | - Samuel Lara-Reyna
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), Leeds, UK.,Leeds Institute of Medical Research at St. James's, Leeds, UK.,Leeds Cystic Fibrosis Trust Strategic Research Centre, Leeds, UK
| | - Heledd Jarosz-Griffiths
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), Leeds, UK.,Leeds Institute of Medical Research at St. James's, Leeds, UK.,Leeds Cystic Fibrosis Trust Strategic Research Centre, Leeds, UK
| | - Michael McDermott
- Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), Leeds, UK.,Leeds Cystic Fibrosis Trust Strategic Research Centre, Leeds, UK
| |
Collapse
|
138
|
Englert JA, Bobba C, Baron RM. Integrating molecular pathogenesis and clinical translation in sepsis-induced acute respiratory distress syndrome. JCI Insight 2019; 4:e124061. [PMID: 30674720 PMCID: PMC6413834 DOI: 10.1172/jci.insight.124061] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Sepsis-induced acute respiratory distress syndrome (ARDS) has high morbidity and mortality and arises after lung infection or infection at extrapulmonary sites. An aberrant host response to infection leads to disruption of the pulmonary alveolar-capillary barrier, resulting in lung injury characterized by hypoxemia, inflammation, and noncardiogenic pulmonary edema. Despite increased understanding of the molecular biology underlying sepsis-induced ARDS, there are no targeted pharmacologic therapies for this devastating condition. Here, we review the molecular underpinnings of sepsis-induced ARDS with a focus on relevant clinical and translational studies that point toward novel therapeutic strategies.
Collapse
Affiliation(s)
- Joshua A. Englert
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Christopher Bobba
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
| | - Rebecca M. Baron
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| |
Collapse
|
139
|
Wang J, Gong S, Wang F, Niu M, Wei G, He Z, Gu T, Jiang Y, Liu A, Chen P. Granisetron protects polymicrobial sepsis-induced acute lung injury in mice. Biochem Biophys Res Commun 2019; 508:1004-1010. [DOI: 10.1016/j.bbrc.2018.12.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 12/05/2018] [Indexed: 01/08/2023]
|
140
|
Perivascular adipose tissue dysfunction aggravates adventitial remodeling in obese mini pigs via NLRP3 inflammasome/IL-1 signaling pathway. Acta Pharmacol Sin 2019; 40:46-54. [PMID: 30002491 DOI: 10.1038/s41401-018-0068-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 06/11/2018] [Indexed: 01/03/2023] Open
Abstract
Perivascular adipose tissue (PVAT), a special type of adipose tissue, closely surrounds vascular adventitia and produces numerous bioactive substances to maintain vascular homeostasis. PVAT dysfunction has a crucial role in regulating vascular remodeling, but the exact mechanisms remain unclear. In this study, we investigated whether and how obesity-induced PVAT dysfunction affected adventitia remodeling in early vascular injury stages. Mini pigs were fed a high sugar and fat diet for 6 months to induce metabolic syndrome and obesity. In the mini pigs, left carotid vascular injury was then generated using balloon dilation. Compared with normal mini pigs, obese mini pigs displayed significantly enhanced vascular injury-induced adventitial responses, evidenced by adventitia fibroblast (AF) proliferation and differentiation, and adventitia fibrosis, as well as exacerbated PVAT dysfunction characterized by increased accumulation of resident macrophages, particularly the M1 pro-inflammatory phenotype, increased expression of leptin and decreased expression of adiponectin, and production of pro-inflammatory cytokines interleukin (IL)-1β and IL-18. Primary AFs cultured in PVAT-conditioned medium from obese mini pigs also showed significantly increased proliferation and differentiation. We further revealed that activated nod-like receptor protein 3 (NLRP3) inflammasome and its downstream products, i.e., IL-1 family members such as IL-1β and IL-18 were upregulated in the PVAT of obese mini pigs; PVAT dysfunction was also demonstrated in preadipocytes treated with palmitic acid. Finally, we showed that pretreatment with IL-1 receptor (IL-1R) antagonist or IL-1R knockdown blocked AF proliferation and differentiation in AFs cultured in PVAT-conditioned medium. These results demonstrate that obesity-induced PVAT dysfunction aggravates adventitial remodeling after early vascular injury with elevated AF proliferation and differentiation via activating the NLRP3/IL-1 signaling pathway.
Collapse
|
141
|
Therianou A, Vasiadi M, Delivanis DA, Petrakopoulou T, Katsarou-Katsari A, Antoniou C, Stratigos A, Tsilioni I, Katsambas A, Rigopoulos D, Theoharides TC. Mitochondrial dysfunction in affected skin and increased mitochondrial DNA in serum from patients with psoriasis. Exp Dermatol 2019; 28:72-75. [PMID: 30390357 DOI: 10.1111/exd.13831] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/02/2018] [Accepted: 10/11/2018] [Indexed: 12/16/2022]
Abstract
Psoriasis is characterized by keratinocyte proliferation and chronic inflammation, but the pathogenesis is still unclear. Dysregulated mitochondria (mt) could lead to reduced apoptosis and extracellular secretion of mtDNA, acting as "innate pathogen" triggering inflammation. Serum was obtained from healthy volunteers and psoriatic patients. Mitochondrial DNA was extracted from the serum and amplified with quantitative PCR (qPCR). Punch biopsies were obtained from lesional and non-lesional psoriatic skin (10 cm apart) and from healthy volunteers, were placed in RNA later and were stored at -80°C until RNA was extracted and cDNA was synthesized; gene expression of uncoupling protein 2 (UCP2), Dynamin-related protein 1 (Drp1) and calcineurin, involved in the regulation of mitochondria function, was detected with qPCR. Mitochondrial DNA was significantly increased (7s, P = 0.0496 and Cytochrome B, CytB, P = 0.0403) in the serum of psoriatic patients (n = 63) as compared to controls (n = 27). Gene expression was significantly reduced for UCP2 (P = 0.0218), Drp1 (P = 0.0001) and calcineurin (P = 0.0001) in lesional psoriatic skin, as compared to non-lesional or control skin. Increased serum extracellular mtDNA in psoriatic patients and decreased expression of mitochondrial regulatory proteins in psoriatic skin suggest increased inflammation and reduced keratinocyte apoptosis, respectively. Inhibitors of mtDNA secretion and/or UCP2 stimulants may be potential treatment options.
Collapse
Affiliation(s)
- Anastasia Therianou
- Molecular Immunopharmacology and Drug Discovery Laboratory, Department of Immunology, Tufts University School of Medicine, Boston, Massachusetts
- First Department of Dermatology, Andreas Syggros Hospital of Cutaneous & Venereal Diseases, Athens University Medical School, Athens, Greece
| | - Magdalini Vasiadi
- Molecular Immunopharmacology and Drug Discovery Laboratory, Department of Immunology, Tufts University School of Medicine, Boston, Massachusetts
- General Anti-Cancer Hospital Agios Savvas, Athens, Greece
| | - Danae A Delivanis
- Molecular Immunopharmacology and Drug Discovery Laboratory, Department of Immunology, Tufts University School of Medicine, Boston, Massachusetts
| | | | - Alexandra Katsarou-Katsari
- First Department of Dermatology, Andreas Syggros Hospital of Cutaneous & Venereal Diseases, Athens University Medical School, Athens, Greece
| | - Christina Antoniou
- First Department of Dermatology, Andreas Syggros Hospital of Cutaneous & Venereal Diseases, Athens University Medical School, Athens, Greece
| | - Alexandros Stratigos
- First Department of Dermatology, Andreas Syggros Hospital of Cutaneous & Venereal Diseases, Athens University Medical School, Athens, Greece
| | - Irene Tsilioni
- Molecular Immunopharmacology and Drug Discovery Laboratory, Department of Immunology, Tufts University School of Medicine, Boston, Massachusetts
| | - Andreas Katsambas
- First Department of Dermatology, Andreas Syggros Hospital of Cutaneous & Venereal Diseases, Athens University Medical School, Athens, Greece
| | - Dimitris Rigopoulos
- First Department of Dermatology, Andreas Syggros Hospital of Cutaneous & Venereal Diseases, Athens University Medical School, Athens, Greece
| | - Theoharis C Theoharides
- Molecular Immunopharmacology and Drug Discovery Laboratory, Department of Immunology, Tufts University School of Medicine, Boston, Massachusetts
- Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, Massachusetts
- Department of Internal Medicine, Tufts University School of Medicine and Tufts Medical Center, Boston, Massachusetts
| |
Collapse
|
142
|
Hansen IS, Baeten DLP, den Dunnen J. The inflammatory function of human IgA. Cell Mol Life Sci 2018; 76:1041-1055. [PMID: 30498997 PMCID: PMC6513800 DOI: 10.1007/s00018-018-2976-8] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/23/2018] [Accepted: 11/22/2018] [Indexed: 12/21/2022]
Abstract
The prevailing concept regarding the immunological function of immunoglobulin A (IgA) is that it binds to and neutralizes pathogens to prevent infection at mucosal sites of the body. However, recently, it has become clear that in humans IgA is also able to actively contribute to the initiation of inflammation, both at mucosal and non-mucosal sites. This additional function of IgA is initiated by the formation of immune complexes, which trigger Fc alpha Receptor I (FcαRI) to synergize with various other receptors to amplify inflammatory responses. Recent findings have demonstrated that co-stimulation of FcαRI strongly affects pro-inflammatory cytokine production by various myeloid cells, including different dendritic cell subsets, macrophages, monocytes, and Kupffer cells. FcαRI-induced inflammation plays a crucial role in orchestrating human host defense against pathogens, as well as the generation of tissue-specific immunity. In addition, FcαRI-induced inflammation is suggested to be involved in the pathogenesis of various chronic inflammatory disorders, including inflammatory bowel disease, celiac disease, and rheumatoid arthritis. Combined, IgA-induced inflammation may be used to either promote inflammatory responses, e.g. in the context of cancer therapy, but may also provide new therapeutic targets to counteract chronic inflammation in the context of various chronic inflammatory disorders.
Collapse
Affiliation(s)
- Ivo S Hansen
- Amsterdam Rheumatology and immunology Center, Academic Medical Center (AMC), Amsterdam, The Netherlands.,Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Dominique L P Baeten
- Amsterdam Rheumatology and immunology Center, Academic Medical Center (AMC), Amsterdam, The Netherlands.,Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Jeroen den Dunnen
- Amsterdam Rheumatology and immunology Center, Academic Medical Center (AMC), Amsterdam, The Netherlands. .,Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.
| |
Collapse
|
143
|
Boura‐Halfon S, Pecht T, Jung S, Rudich A. Obesity and dysregulated central and peripheral macrophage–neuron cross‐talk. Eur J Immunol 2018; 49:19-29. [DOI: 10.1002/eji.201747389] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/13/2018] [Accepted: 11/02/2018] [Indexed: 12/28/2022]
Affiliation(s)
| | - Tal Pecht
- Department of Clinical Biochemistry and Pharmacology Faculty of Health Sciences, and the National Institute of Biotechnology in the Negev Ben‐Gurion University of the Negev Beer Sheva Israel
| | - Steffen Jung
- Department of Immunology Weizmann Institute of Science Rehovot Israel
| | - Assaf Rudich
- Department of Clinical Biochemistry and Pharmacology Faculty of Health Sciences, and the National Institute of Biotechnology in the Negev Ben‐Gurion University of the Negev Beer Sheva Israel
| |
Collapse
|
144
|
Qian X, Yang Z, Mao E, Chen E. Regulation of fatty acid synthesis in immune cells. Scand J Immunol 2018; 88:e12713. [PMID: 30176060 DOI: 10.1111/sji.12713] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 07/20/2018] [Accepted: 08/22/2018] [Indexed: 02/06/2023]
Abstract
Metabolic reprogramming plays a critical role in the important cellular metabolic alterations that occur during the activation of immune cells to enable them to adapt to the extracellular environment. Here, we review recent studies on how substrate availability and metabolites mediate the signalling pathways that regulate fatty acid synthesis (FAS) in different immune cells and how FAS determines cellular fate and function. The major regulators sterol regulatory element-binding proteins and liver X receptors, the key enzyme ATP citrate lyase and the PI3K-Akt-mTOR signalling axis play important roles in de novo FAS during a variety of biological events, including cellular proliferation and differentiation and the development of organelles and intracellular membrane components in immune cells. In addition, the regulation of FAS substantially contributes to the inflammatory response of immune cells. Post-transcriptional modifications in FAS are also closely associated with the functional processes of immune cells. Understanding and investigating the intrinsic regulatory mechanism of FAS is of great significance for developing novel therapies for inflammation-induced diseases.
Collapse
Affiliation(s)
- Xuchen Qian
- Department of Emergency and Critical Care Medicine, First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhitao Yang
- Department of Emergency Intensive Care Unit, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Enqiang Mao
- Department of Emergency Intensive Care Unit, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Erzhen Chen
- Department of Emergency Intensive Care Unit, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
145
|
The role of mitochondria in sepsis-induced cardiomyopathy. Biochim Biophys Acta Mol Basis Dis 2018; 1865:759-773. [PMID: 30342158 DOI: 10.1016/j.bbadis.2018.10.011] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 10/02/2018] [Accepted: 10/05/2018] [Indexed: 02/08/2023]
Abstract
Sepsis is defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection. Myocardial dysfunction, often termed sepsis-induced cardiomyopathy, is a frequent complication and is associated with worse outcomes. Numerous mechanisms contribute to sepsis-induced cardiomyopathy and a growing body of evidence suggests that bioenergetic and metabolic derangements play a central role in its development; however, there are significant discrepancies in the literature, perhaps reflecting variability in the experimental models employed or in the host response to sepsis. The condition is characterised by lack of significant cell death, normal tissue oxygen levels and, in survivors, reversibility of organ dysfunction. The functional changes observed in cardiac tissue may represent an adaptive response to prolonged stress that limits cell death, improving the potential for recovery. In this review, we describe our current understanding of the pathophysiology underlying myocardial dysfunction in sepsis, with a focus on disrupted mitochondrial processes.
Collapse
|
146
|
Vinaik R, Stanojcic M, Jeschke MG. NLRP3 Inflammasome Modulates Post-Burn Lipolysis and Hepatic Fat Infiltration via Fatty Acid Synthase. Sci Rep 2018; 8:15197. [PMID: 30315247 PMCID: PMC6185951 DOI: 10.1038/s41598-018-33486-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/27/2018] [Indexed: 01/08/2023] Open
Abstract
Burns result in generalized catabolism, lipolysis, and hyperinflammation. NLRP3 inflammasome, a mediator of hyperinflammation, is upregulated in burn patients' adipose tissue within 7 days post-burn. However, its role during the acute phase is unknown. Here, wild-type (WT) and NLRP3 knockout (NLRP3-/-) mice were exposed to 25% TBSA scald burn. Flow cytometric analysis demonstrated greater liver macrophage infiltration in NLRP3-/- yet decreased protein expression of NLRP3 components, ER stress, and apoptosis. NLRP3-/- had increased circulating free fatty acids (FFA), fatty deposition and liver weight 1 hour post-burn. Alterations in adipose fatty acid synthase (Fasn) expression affects FFA levels post-burn; WT have an early peak in Fasn gene and protein expression that is lost in NLRP3-/-, resulting in increased lipolysis and hepatic fatty deposition. In summary, our findings reveal that NLRP3 inflammasome activation is a double-edged sword. While prolonged inflammation and long-term effects of macrophage activation are associated with poor outcomes, acute inflammation may be beneficial. These results highlight the important metabolic role that NLRP3 inflammasome plays in the acute phase, ultimately affecting survival post-burn.
Collapse
Affiliation(s)
| | | | - Marc G Jeschke
- Department of Surgery, Division of Plastic Surgery, University of Toronto, Toronto, Canada. .,Department of Immunology, University of Toronto, Toronto, Canada. .,Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Toronto, Canada. .,Sunnybrook Research Institute, Toronto, Canada.
| |
Collapse
|
147
|
Park HY, Kang HS, Im SS. Recent insight into the correlation of SREBP-mediated lipid metabolism and innate immune response. J Mol Endocrinol 2018; 61:R123-R131. [PMID: 30307160 DOI: 10.1530/jme-17-0289] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Fatty acids are essential nutrients that contribute to several intracellular functions. Fatty acid synthesis and oxidation are known to be regulated by sterol regulatory element-binding proteins (SREBPs), which play a pivotal role in the regulation of cellular triglyceride synthesis and cholesterol biogenesis. Recent studies point to a multifunctional role of SREBPs in the pathogenesis of metabolic diseases, such as obesity, type II diabetes and cancer as well as in immune responses. Notably, fatty acid metabolic intermediates are involved in energy homeostasis and pathophysiological conditions. In particular, intracellular fatty acid metabolism affects an inflammatory response, thereby influencing metabolic diseases. The objective of this review is to summarize the recent advances in our understanding of the dual role of SREBPs in both lipid metabolism and inflammation-mediated metabolic diseases.
Collapse
Affiliation(s)
- Hyeon Young Park
- Department of Physiology, Keimyung University School of Medicine, Daegu, South Korea
| | - Hye Suk Kang
- Department of Physiology, Keimyung University School of Medicine, Daegu, South Korea
| | - Seung-Soon Im
- Department of Physiology, Keimyung University School of Medicine, Daegu, South Korea
| |
Collapse
|
148
|
Xu F, Sang W, Li L, He X, Wang F, Wen T, Zeng N. Protective effects of ethyl acetate extracts of Rimulus Cinnamon on systemic inflammation and lung injury in endotoxin-poisoned mice. Drug Chem Toxicol 2018; 42:309-316. [PMID: 30257565 DOI: 10.1080/01480545.2018.1509987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Rimulus cinnamon is the dried twig of Cinnamomum cassia Presl. It is widely used in China for the treatment of inflammatory processes, amenorrhea, and other diseases. We aimed to study the protective effects of ethyl acetate extracts of R. cinnamon (EAE) on systemic inflammation and lung injury in endotoxin-poisoned mice. EAE was administered 5 d prior to lipopolysaccharide (LPS) challenge with 15 mg/kg LPS. The administration of EAE increased the levels of interferon-γ (IFN-γ) and decreased the levels of interleukin-18 (IL-18) and tumor necrosis factor-α (TNF-α) in the serum. Additionally, EAE relieved the pathological changes in the tissues of the lungs and spleen, and significantly reduced the number of neutrophils in the lung tissues. In addition, treatment with EAE decreased the mRNA expression of the NLR family, pyrin domain-containing protein 3 (NLRP3), caspase-1, and interleukin-1β (IL-1β) in the lungs, as well as the expression of NLRP3, caspase-1 (p20), and pro-IL-1β proteins. These results demonstrated the promising anti-inflammatory effects of EAE in endotoxin-poisoned mice. Furthermore, EAE could alleviate the lung injury of endotoxin-poisoned mice by antagonizing the activation of the NLRP3 inflammasome.
Collapse
Affiliation(s)
- Feng Xu
- a Department of Pharmacology, College of Pharmacy , Chengdu University of TCM , Chengdu , Sichuan , P.R. China
| | - Wentao Sang
- a Department of Pharmacology, College of Pharmacy , Chengdu University of TCM , Chengdu , Sichuan , P.R. China
| | - Ling Li
- a Department of Pharmacology, College of Pharmacy , Chengdu University of TCM , Chengdu , Sichuan , P.R. China
| | - Xinyu He
- a Department of Pharmacology, College of Pharmacy , Chengdu University of TCM , Chengdu , Sichuan , P.R. China
| | - Feng Wang
- a Department of Pharmacology, College of Pharmacy , Chengdu University of TCM , Chengdu , Sichuan , P.R. China
| | - Taoqun Wen
- a Department of Pharmacology, College of Pharmacy , Chengdu University of TCM , Chengdu , Sichuan , P.R. China
| | - Nan Zeng
- a Department of Pharmacology, College of Pharmacy , Chengdu University of TCM , Chengdu , Sichuan , P.R. China
| |
Collapse
|
149
|
Lyu JJ, Mehta JL, Li Y, Ye L, Sun SN, Sun HS, Li JC, Zhang DM, Wei J. Mitochondrial Autophagy and NLRP3 Inflammasome in Pulmonary Tissues from Severe Combined Immunodeficient Mice after Cardiac Arrest and Cardiopulmonary Resuscitation. Chin Med J (Engl) 2018; 131:1174-1184. [PMID: 29722336 PMCID: PMC5956768 DOI: 10.4103/0366-6999.231519] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background: The incidence of cancer, diabetes, and autoimmune diseases has been increasing. Furthermore, there are more and more patients with solid organ transplants. The survival rate of these immunocompromised individuals is extremely low when they are severely hit-on. In this study, we established cardiac arrest cardiopulmonary resuscitation (CPR) model in severe combined immunodeficient (SCID) mice, analyzed the expression and activation of mitochondrial autophagy and NLRP3 inflammasome/caspase-1, and explored mitochondrial repair and inflammatory injury in immunodeficiency individual during systemic ischemia-reperfusion injury. Methods: A potassium chloride-induced cardiac arrest model was established in C57BL/6 and nonobese diabetic/SCID (NOD/SCID) mice. One hundred male C57BL/6 mice and 100 male NOD/SCID mice were randomly divided into five groups (control, 2 h post-CPR, 12 h post-CPR, 24 h post-CPR, and 48 h post-CPR). A temporal dynamic view of alveolar epithelial cells, macrophages, and neutrophils from bronchoalveolar lavage fluid (BALF) was obtained using Giemsa staining. Spatial characterization of phenotypic analysis of macrophages in the lung interstitial tissue was analyzed by flow cytometry. The morphological changes of mitochondria 48 h after CPR were studied by transmission electron microscopy and quantified according to the Flameng grading system. Western blotting analysis was used to detect the expression and activation of the markers of mitochondrial autophagy, NLRP3 inflammasome, and caspase-1. Results: (1) In NOD/SCID mice, macrophages were disintegrated in BALF, and many alveolar epithelial cells were shed at 48 h after resuscitation. Compared with C57BL/6 mice, the ratio of macrophages/total cells peaked at 12 h and was significantly higher in NOD/SCID mice (31.17 ± 4.13 vs. 49.69 ± 2.43, t = 14.46, P = 0.001). After 24 h, the results showed a downward trend. Furthermore, a large number of macrophages were disintegrated in the BALF. (2) Mitochondrial autophagy was present in both C57BL/6 and NOD/SCID mice after CPR, but it began late in the NOD/SCID mice. Compared with C57BL/6 mice, phos-ULK1 (Ser327) expression was significantly lower at 2 h and 12 h after CPR (2 h after CPR: 1.88 ± 0.36 vs. 1.12 ± 0.11, t = −1.36, P < 0.01 and 12 h after CPR: 1.52 ± 0.16 vs. 1.05 ± 0.12, t = −0.33, P < 0.01), whereas phos-ULK1 (Ser757) expression was significantly higher at 2 h and 12 h after CPR in NOD/SCID mice (2 h after CPR: 1.28 ± 0.12 vs. 1.69 ± 0.14, t = 1.7, P < 0.01 and 12 h after CPR: 1.33 ± 0.10 vs. 1.94 ± 0.13, t = 2.75, P < 0.01). (3) Furthermore, NLRP3 inflammasome/caspase-1 activation in the pulmonary tissues occurred early and for only a short time in C57BL/6 mice, but this phenomenon was sustained in NOD/SCID mice. The expression of the NLRP3 inflammasome increased modestly in the C57 mice, but the increase was higher in the NOD/SCID mice than in the C57BL/6 mice, especially at 12, 24, 48 h after CPR (48 h after CPR: 1.46 ± 0.13 vs. 2.97 ± 0.19, t = 5.34, P = 0.001). The expression of caspase-1-20 generally followed the same pattern as the NLRP3 inflammasome. Conclusions: There is a regulatory relationship between the NLRP3 inflammasome and mitochondrial autophagy after CPR in the healthy mice. This regulatory relationship was disturbed in the NOD/SCID mice because the signals for mitochondrial autophagy occurred late, and NLRP3 inflammasome- and caspase-1-dependent cell injury was sustained.
Collapse
Affiliation(s)
- Jing-Jun Lyu
- Department of Emergency, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Jawahar L Mehta
- Department of Medicine, Central Arkansas Veterans Healthcare System, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Yi Li
- Department of Emergency, Peking Union Medical College Hospital, Beijing 100032, China
| | - Lu Ye
- Department of Emergency, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Sheng-Nan Sun
- Department of Emergency, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Hong-Shuang Sun
- Department of Emergency, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Jia-Chang Li
- Department of Emergency, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Dong-Mei Zhang
- Department of Emergency, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Jie Wei
- Department of Emergency, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| |
Collapse
|
150
|
Benmoussa K, Garaude J, Acín-Pérez R. How Mitochondrial Metabolism Contributes to Macrophage Phenotype and Functions. J Mol Biol 2018; 430:3906-3921. [PMID: 30006265 DOI: 10.1016/j.jmb.2018.07.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 07/02/2018] [Accepted: 07/03/2018] [Indexed: 01/02/2023]
Abstract
Metabolic reprogramming of cells from the innate immune system is one of the most noteworthy topics in immunological research nowadays. Upon infection or tissue damage, innate immune cells, such as macrophages, mobilize various immune and metabolic signals to mount a response best suited to eradicate the threat. Current data indicate that both the immune and metabolic responses are closely interconnected. On account of its peculiar position in regulating both of these processes, the mitochondrion has emerged as a critical organelle that orchestrates the coordinated metabolic and immune adaptations in macrophages. Significant effort is now underway to understand how metabolic features of differentiated macrophages regulate their immune specificities with the eventual goal to manipulate cellular metabolism to control immunity. In this review, we highlight some of the recent work that place cellular and mitochondrial metabolism in a central position in the macrophage differentiation program.
Collapse
Affiliation(s)
- Khaddouj Benmoussa
- Laboratoire Maladies Rares, Génétique et Métabolisme, INSERM U1211, Université de Bordeaux, CHU Pellegrin, École de Sages-Femmes, 33000 Bordeaux, France
| | - Johan Garaude
- Laboratoire Maladies Rares, Génétique et Métabolisme, INSERM U1211, Université de Bordeaux, CHU Pellegrin, École de Sages-Femmes, 33000 Bordeaux, France.
| | - Rebeca Acín-Pérez
- UCLA Division of Endocrinology, Diabetes and Metabolism, David Geffen School of Medicine, 10833 Le Conte Avenue, CHS 27-200, Los Angeles, CA 90025, USA; Centro Nacional de Investigaciones Cardiovasculares Carlos III, Melchor Fernandez de Almagro 3, 28029 Madrid, Spain.
| |
Collapse
|