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Ou Y, Yang Z, Zhou Y, Yue H, Hua L, Liu Z, Lin G, Cai H, Chen Y, Hu W, Sun P. Antagonizing interleukin-5 receptor ameliorates dextran sulfate sodium-induced experimental colitis in mice through reducing NLRP3 inflammasome activation. Eur J Pharmacol 2024; 965:176331. [PMID: 38220140 DOI: 10.1016/j.ejphar.2024.176331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 01/03/2024] [Accepted: 01/12/2024] [Indexed: 01/16/2024]
Abstract
Inflammatory bowel disease (IBD) is a condition characterized by inflammation in the gastrointestinal tract. Reducing intestinal inflammation is a promising approach for treating IBD. The nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing protein 3 (NLRP3) inflammasome, a critical component of the innate immune system, is implicated in the pathogenesis of IBD. Therefore, inhibiting NLRP3 inflammasome activation is a potential therapeutic strategy for IBD. In this study, we investigated the effects of the interleukin-5 (IL-5) receptor antagonist YM-90709 on dextran sulfate sodium-induced experimental colitis in mice. We found that YM-90709 reduced the expressions of IL-1β and caspase-1 p20 in the colon and ameliorated colitis. Furthermore, we identified YM-90709 as an effective agent for inhibiting NLRP3 inflammasome activation. Knockdown of IL-5 receptor or using an inhibitor of STAT5, a key transcription factor downstream of the IL-5/IL-5 receptor signal pathway, also reduced NLRP3 inflammasome-dependent IL-1β release and ASC speck formation. Our study is the first to demonstrate that the NLRP3 inflammasome may be a downstream signal of IL-5/IL-5 receptor and that YM-90709 protects against IBD by inhibiting IL-5 receptor. These findings suggest a new strategy for regulating intestinal inflammation and managing IBD.
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Affiliation(s)
- Yitao Ou
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Zhongjin Yang
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yinghua Zhou
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Hu Yue
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Lei Hua
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Zhuorong Liu
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Geng Lin
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Haowei Cai
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yanhong Chen
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Wenhui Hu
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Ping Sun
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
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2
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Li H, Zhao Q, Liu D, Zhou B, Liao F, Chen L. Cathepsin B aggravates atherosclerosis in ApoE-deficient mice by modulating vascular smooth muscle cell pyroptosis through NF-κB / NLRP3 signaling pathway. PLoS One 2024; 19:e0294514. [PMID: 38165884 PMCID: PMC10760722 DOI: 10.1371/journal.pone.0294514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 11/02/2023] [Indexed: 01/04/2024] Open
Abstract
Atherosclerosis (AS) is a chronic inflammatory disease involving cell death and inflammatory responses. Pyroptosis, a newly discovered pro-inflammatory programmed cell death process, exacerbates inflammatory responses. However, the roles of cathepsin B (CTSB) in pyroptosis and AS remain unclear. To gain further insight, we fed ApoE-/- mice a high-fat diet to investigate the effects and mechanisms of CTSB overexpression and silencing on AS. We also explored the specific role of CTSB in vascular smooth muscle cells (VSMCs) in vitro. The study revealed that high-fat diet led to the formation of AS plaques, and CTSB was found to increase the AS plaque lesion area. Immunohistochemical and TUNEL/caspase-1 staining revealed the existence of pyroptosis in atherosclerotic plaques, particularly in VSMCs. In vitro studies, including Hoechst 33342/propidium iodide staining, a lactate dehydrogenase (LDH) release assay, detection of protein indicators of pyroptosis, and detection of interleukin-1β (IL-1β) in cell culture medium, demonstrated that oxidized low-density lipoprotein (ox-LDL) induced VSMC pyroptosis. Additionally, CTSB promoted VSMC pyroptosis. Ox-LDL increased the expression of CTSB, which in turn activated the NOD-like receptor protein 3 (NLRP3) inflammasome and promoted NLRP3 expression by facilitating nuclear factor kappa B (NF-κB) p65 nuclear translocation. This effect could be attenuated by the NF-κB inhibitor SN50. Our research found that CTSB not only promotes VSMC pyroptosis by activating the NLRP3 inflammasome, but also increases the expression of NLRP3.
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Affiliation(s)
- Hui Li
- Department of Cardiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
- Institute of Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Quanwei Zhao
- Department of Cardiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
- Institute of Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Danan Liu
- Department of Cardiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
- Institute of Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Bo Zhou
- Department of Cardiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
- Institute of Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Fujun Liao
- Department of Cardiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
- Institute of Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Long Chen
- Department of Cardiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
- Institute of Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, China
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3
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Eriksson I, Vainikka L, Persson HL, Öllinger K. Real-Time Monitoring of Lysosomal Membrane Permeabilization Using Acridine Orange. Methods Protoc 2023; 6:72. [PMID: 37623923 PMCID: PMC10459729 DOI: 10.3390/mps6040072] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/24/2023] [Accepted: 08/02/2023] [Indexed: 08/26/2023] Open
Abstract
Loss of lysosomal membrane integrity results in leakage of lysosomal hydrolases to the cytosol which might harm cell function and induce cell death. Destabilization of lysosomes often precede apoptotic or necrotic cell death and occur during both physiological and pathological conditions. The weak base acridine orange readily enters cells and accumulates in the acidic environment of lysosomes. Vital staining with acridine orange is a well-proven technique to observe lysosomal destabilization using fluorescence microscopy and flow cytometry. These analyses are, however, time consuming and only adapted for discrete time points, which make them unsuitable for large-scale approaches. Therefore, we have developed a time-saving, high-throughput microplate reader-based method to follow destabilization of the lysosomal membrane in real-time using acridine orange. This protocol can easily be adopted for patient samples since the number of cells per sample is low and the time for analysis is short.
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Affiliation(s)
- Ida Eriksson
- Experimental Pathology, Department of Biomedical and Clinical Sciences, Linköping University, 581 85 Linköping, Sweden; (L.V.); (K.Ö.)
| | - Linda Vainikka
- Experimental Pathology, Department of Biomedical and Clinical Sciences, Linköping University, 581 85 Linköping, Sweden; (L.V.); (K.Ö.)
| | - Hans Lennart Persson
- Department of Respiratory Medicine in Linköping, Linköping University, 581 85 Linköping, Sweden;
- Department of Health, Medicine and Caring Sciences, Linköping University, 581 85 Linköping, Sweden
| | - Karin Öllinger
- Experimental Pathology, Department of Biomedical and Clinical Sciences, Linköping University, 581 85 Linköping, Sweden; (L.V.); (K.Ö.)
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4
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Kim JK, Jung HJ, Hyun M, Lee JY, Park JH, Suh SI, Baek WK, Kim HA. Resistance of hypervirulent Klebsiella pneumoniae to cathepsin B-mediated pyroptosis in murine macrophages. Front Immunol 2023; 14:1207121. [PMID: 37457695 PMCID: PMC10342201 DOI: 10.3389/fimmu.2023.1207121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 05/31/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction Hypervirulent Klebsiella pneumoniae (hvKp) has emerged as a clinically significant global pathogen in the last decade. However, the host immune responses of the macrophages during hvKp infection are largely unknown. In the present study, we aimed to compare the cytotoxic effects of hvKp and classical K. pneumoniae (cKp) in murine macrophages. Results We found that the activation of caspase-1 -dependent pyroptosis was higher in cKp-infected macrophages compared with that in hvKp-infected macrophages. In Caspase-1 deficiency macrophages, pyroptosis diminished during infection. Both hvKp and cKp strains led to nucleotide-binding and oligomerization domain-like receptor protein 3 (NLRP3) inflammasome formation and lysosomal cathepsin B activation, thus resulting in pyroptosis. Compared with the cKp strain, the hvKp strain inhibited these phenomena in murine macrophages. Conclusion HvKp infection resulted in different levels of pyroptosis via the activation of cathepsin B-NLRP3-caspase-1 in murine macrophages. Therefore, the manipulation of pyroptotic cell death is a potential target for host response during hvKp infection in macrophages.
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Affiliation(s)
- Jin Kyung Kim
- Department of Microbiology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Hui-Jung Jung
- Department of Microbiology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Miri Hyun
- Department of Infectious Diseases, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Ji Yeon Lee
- Department of Infectious Diseases, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Jong-Hwan Park
- Laboratory Animal Medicine, College of Veterinary Medicine and Brain Korea 21 Plus Project Team, Chonnam National University, Gwangju, Republic of Korea
| | - Seong-Il Suh
- Department of Microbiology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Won-Ki Baek
- Department of Microbiology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Hyun ah Kim
- Department of Infectious Diseases, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Republic of Korea
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Lei D, Yu W, Liu Y, Jiang Y, Li X, Lv J, Li Y. Trimethylamine N-Oxide (TMAO) Inducing Endothelial Injury: UPLC-MS/MS-Based Quantification and the Activation of Cathepsin B-Mediated NLRP3 Inflammasome. Molecules 2023; 28:molecules28093817. [PMID: 37175227 PMCID: PMC10180140 DOI: 10.3390/molecules28093817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 03/25/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
TMAO is a new risk biomarker for cardiovascular disease. With trimethylammonium as its main chemical skeleton, TMAO is structurally similar to many endogenous metabolites, such as acetylcholine, carnitine, phosphorylcholine, etc. The mechanism of TMAO on the pathological process of CVD is still unclear. In this study, the quantitative analysis of plasma TMAO is conducted, and the contribution of Cathepsin B and NLRP3 inflammasome during the process of TMAO-induced endothelial injury was proposed and investigated at animal and cellular levels. Immunofluorescence assay was applied to represent the protein expression of Cathepsin B and NLRP3 inflammasome located at endothelial cells. The results showed that TMAO could disrupt endothelial cells permeability to induce endothelial injury, meanwhile, TMAO could increase NLRP3 inflammasome activation and promote the activity and expression of Cathepsin B in vitro and in vivo, whereas inhibition of NLRP3 inflammasome activation by MCC950 could protect the endothelial cells from TMAO associated endothelial injury via Cathepsin B. The study reveals that TMAO can cause endothelial injury via Cathepsin B-dependent NLRP3 inflammasome, and inhibition of Cathepsin B and NLRP3 inflammasome can reduce the TMAO-induced damage. The results provide new insight into the role of TMAO in CVD, which can be a potential therapeutic target for disease treatment and drug design.
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Affiliation(s)
- Dongyu Lei
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
- Department of Physiology, School of Basic Medicine, Xinjiang Medical University, Urumqi 830017, China
| | - Wenbo Yu
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Yi Liu
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Yujie Jiang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Xiaohui Li
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Jing Lv
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Ying Li
- Department of Health Management, The Third Xiangya Hospital, Central South University, Changsha 410013, China
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6
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Shahi A, Afzali S, Firoozi Z, Mohaghegh P, Moravej A, Hosseinipour A, Bahmanyar M, Mansoori Y. Potential roles of NLRP3 inflammasome in the pathogenesis of Kawasaki disease. J Cell Physiol 2023; 238:513-532. [PMID: 36649375 DOI: 10.1002/jcp.30948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/12/2022] [Accepted: 01/05/2023] [Indexed: 01/19/2023]
Abstract
There is a heterogeneous group of rare illnesses that fall into the vasculitis category and are characterized mostly by blood vessel inflammation. Ischemia and disrupted blood flow will cause harm to the organs whose blood arteries become inflamed. Kawasaki disease (KD) is the most prevalent kind of vasculitis in children aged 5 years or younger. Because KD's cardiovascular problems might persist into adulthood, it is no longer thought of as a self-limiting disease. KD is a systemic vasculitis with unknown initiating factors. Numerous factors, such as genetic predisposition and infectious pathogens, are implicated in the etiology of KD. As endothelial cell damage and inflammation can lead to coronary endothelial dysfunction in KD, some studies hypothesized the crucial role of pyroptosis in the pathogenesis of KD. Additionally, pyroptosis-related proteins like caspase-1, apoptosis-associated speck-like protein containing a CARD (ASC), proinflammatory cytokines like IL-1 and IL-18, lactic dehydrogenase, and Gasdermin D (GSDMD) have been found to be overexpressed in KD patients when compared to healthy controls. These occurrences may point to an involvement of inflammasomes and pyroptotic cell death in the etiology of KD and suggest potential treatment targets. Based on these shreds of evidence, in this review, we aim to focus on one of the well-defined inflammasomes, NLRP3, and its role in the pathophysiology of KD.
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Affiliation(s)
- Abbas Shahi
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Shima Afzali
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Firoozi
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
- Department of Medical Genetics, Fasa University of Medical Sciences, Fasa, Iran
| | - Poopak Mohaghegh
- Pediatrics Department, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Ali Moravej
- Department of Immunology, Fasa University of Medical Sciences, Fasa, Iran
| | - Ali Hosseinipour
- Department of Internal Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Maryam Bahmanyar
- Pediatrics Department, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Yaser Mansoori
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
- Department of Medical Genetics, Fasa University of Medical Sciences, Fasa, Iran
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7
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Chronic kidney disease and NLRP3 inflammasome: Pathogenesis, development and targeted therapeutic strategies. Biochem Biophys Rep 2022; 33:101417. [PMID: 36620089 PMCID: PMC9813680 DOI: 10.1016/j.bbrep.2022.101417] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/27/2022] Open
Abstract
Chronic kidney disease (CKD) is a global health concern and public health priority. The condition often involves inflammation due to the accumulation of toxins and the reduced clearance of inflammatory cytokines, leading to gradual loss of kidney function. Because of the tremendous burden of CKD, finding effective treatment strategies against inflammation is crucial. Substantial evidence suggests an association between kidney disease and the inflammasome. As a well-known multiprotein signaling complex, the NLR family pyrin domain containing 3 (NLRP3) inflammasome plays an important role in inducing renal inflammation and fibrosis. Small molecule inhibitors targeting the NLRP3 inflammasome are potential agents for the treatment of CKD.The NLRP3 inflammasome activation amplifies the inflammation response, promoting pyroptotic cell death. Thus, it may contribute to the onset and progression of CKD, but the mechanism behind inflammasome activation in CKD remains obscure.In this review, we summarized recent findings on the role of the NLRP3 inflammasome in CKD and new strategies targeting the NLRP3 inflammasome.
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Key Words
- ,IL-18, Interleukin-18
- ASC, apoptosis-associated speck-like protein
- Ang II, Angiotensin II
- CKD, Chronic kidney disease
- Chronic kidney disease
- DAMPs, damage-associated molecular patterns
- ESRD, End-stage renal disease
- GFR, glomerular filtration rate
- HK-2, renal tubular epithelial cells
- IL-1β, Interleukin-1β
- Inflammasome
- Kidney function
- LRR, leucine-rich repeat
- NEK7, NIMA-related kinase 7
- NF-kB, nuclear factor kappa-B
- NLRP3, NLR family pyrin domain containing 3
- NOD-like receptor
- PAMPs, Pathogen-associated molecular patterns
- ROS, reactive oxygen species
- TXNIP, thioredoxin-interacting protein
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Tsioufis P, Theofilis P, Tsioufis K, Tousoulis D. The Impact of Cytokines in Coronary Atherosclerotic Plaque: Current Therapeutic Approaches. Int J Mol Sci 2022; 23:ijms232415937. [PMID: 36555579 PMCID: PMC9788180 DOI: 10.3390/ijms232415937] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Coronary atherosclerosis is a chronic pathological process that involves inflammation together with endothelial dysfunction and lipoprotein dysregulation. Experimental studies during the past decades have established the role of inflammatory cytokines in coronary artery disease, namely interleukins (ILs), tumor necrosis factor (TNF)-α, interferon-γ, and chemokines. Moreover, their value as biomarkers in disease development and progression further enhance the validity of this interaction. Recently, cytokine-targeted treatment approaches have emerged as potential tools in the management of atherosclerotic disease. IL-1β, based on the results of the CANTOS trial, remains the most validated option in reducing the residual cardiovascular risk. Along the same line, colchicine was also proven efficacious in preventing major adverse cardiovascular events in large clinical trials of patients with acute and chronic coronary syndrome. Other commercially available agents targeting IL-6 (tocilizumab), TNF-α (etanercept, adalimumab, infliximab), or IL-1 receptor antagonist (anakinra) have mostly been assessed in the setting of other inflammatory diseases and further testing in atherosclerosis is required. In the future, potential targeting of the NLRP3 inflammasome, anti-inflammatory IL-10, or atherogenic chemokines could represent appealing options, provided that patient safety is proven to be of no concern.
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Yuan X, Bhat OM, Zou Y, Li X, Zhang Y, Li PL. Endothelial Acid Sphingomyelinase Promotes NLRP3 Inflammasome and Neointima Formation During Hypercholesterolemia. J Lipid Res 2022; 63:100298. [PMID: 36252682 PMCID: PMC9672920 DOI: 10.1016/j.jlr.2022.100298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/18/2022] Open
Abstract
The NOD-like receptor pyrin domain 3 (NLRP3) inflammasome is activated during atherogenesis, but how this occurs is unclear. Here, we explored the mechanisms activating and regulating NLRP3 inflammasomes via the acid sphingomyelinase (ASM)-ceramide signaling pathway. As a neointima formation model, partial left carotid ligations were performed on endothelial cell (EC)-specific ASM transgene mice (Smpd1trg/ECcre) and their control littermates (Smpd1trg/WT and WT/WT) fed on the Western diet (WD). We found neointima formation remarkably increased in Smpd1trg/ECcre mice over their control littermates. Next, we observed enhanced colocalization of NLRP3 versus adaptor protein ASC (the adaptor molecule apoptosis-associated speck-like protein containing a CARD) or caspase-1 in the carotid ECs of WD-treated Smpd1trg/ECcre mice but not in their control littermates. In addition, we used membrane raft (MR) marker flotillin-1 and found more aggregation of ASM and ceramide in the intima of Smpd1trg/ECcre mice than their control littermates. Moreover, we demonstrated by in situ dihydroethidium staining, carotid intimal superoxide levels were much higher in WD-treated Smpd1trg/ECcre mice than in their control littermates. Using ECs from Smpd1trg/ECcre and WT/WT mice, we showed ASM overexpression markedly enhanced 7-ketocholesterol (7-Ket)-induced increases in NLRP3 inflammasome formation, accompanied by enhanced caspase-1 activity and elevated interleukin-1β levels. These 7-Ket-induced increases were significantly attenuated by ASM inhibitor amitriptyline. Furthermore, we determined that increased MR clustering with NADPH oxidase subunits to produce superoxide contributes to 7-Ket-induced NLRP3 inflammasome activation via a thioredoxin-interacting protein-mediated controlling mechanism. We conclude that ceramide from ASM plays a critical role in NLRP3 inflammasome activation during hypercholesterolemia via MR redox signaling platforms to produce superoxide, which leads to TXNIP dissociation.
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Affiliation(s)
- Xinxu Yuan
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Owais M Bhat
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Yao Zou
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Xiang Li
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA
| | - Yang Zhang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA
| | - Pin-Lan Li
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA.
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10
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Chen Y, Li G, Bhat OM, Li X, Zhang Y, Li PL. Impairment of Ceramide-Mediated Endothelial Instant Membrane Resealing During Diabetes Mellitus. Front Physiol 2022; 13:910339. [PMID: 35874544 PMCID: PMC9298829 DOI: 10.3389/fphys.2022.910339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/14/2022] [Indexed: 01/01/2023] Open
Abstract
Recent studies have indicated that instant cell membrane resealing (ICMR) controls the activation of NOD-like receptor pyrin domain containing 3 (Nlrp3) inflammasomes in endothelial cells, thereby initiating and promoting vascular inflammation. It remains unknown whether this impaired ICMR occurs under diabetic condition or hyperglycemia contributing to endothelial dysfunction leading to vascular inflammation, a hallmark of diabetic vascular injury. The present study aims to examine whether ICMR occurs during in control and diabetic mice and to explore related molecular mechanisms associated with acid sphingomyelinase (ASM)-mediated ceramide production. Using confocal microscopy, we demonstrated that mouse aortic endothelial cells (MAECs) exposed to high glucose levels exhibited much more retarded ICMR after laser-induced membrane injury, compared to that in control cells. The high glucose-induced impairment of membrane resealing in MAECs was prevented when these cells were pretreated with sphingomyelin or C24-ceramide. Mechanistically, high glucose treatment decreased association of membrane ceramide with annexin A5, an essential element of membrane repair machinery. Consistently, the association of ceramide with annexin A5 was significantly reduced in the coronary arterial endothelium of mice with streptozotocin-induced diabetes mellitus compared to that in non-diabetic control mice. Moreover, a marked reduction of the association of ceramide with annexin A5 was observed in coronary arterial endothelium of ASM knockout mice regardless of their diabetic status. Lastly, high glucose treatment or ASM gene deletion substantially impaired ICMR in coronary arterial endothelium of mice receiving membrane puncturing agents. Collectively, our data suggest that ceramide-mediated ICMR in vascular endothelial cells is impaired during diabetes mellitus due to dissociation of ceramide with annexin A5 and ASM play a critical role in this ICMR.
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Affiliation(s)
- Yang Chen
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, China,Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Guangbi Li
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Owais M. Bhat
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Xiang Li
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, United States
| | - Yang Zhang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, United States,*Correspondence: Yang Zhang, ; Pin-Lan Li,
| | - Pin-Lan Li
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States,*Correspondence: Yang Zhang, ; Pin-Lan Li,
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11
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Beltrán-García J, Osca-Verdegal R, Pérez-Cremades D, Novella S, Hermenegildo C, Pallardó FV, García-Giménez JL. Extracellular Histones Activate Endothelial NLRP3 Inflammasome and are Associated with a Severe Sepsis Phenotype. J Inflamm Res 2022; 15:4217-4238. [PMID: 35915852 PMCID: PMC9338392 DOI: 10.2147/jir.s363693] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/29/2022] [Indexed: 12/27/2022] Open
Affiliation(s)
- Jesús Beltrán-García
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
- Departamento de Fisiología, Facultad de Medicina y Odontología, Universitat de València, València, Spain
| | - Rebeca Osca-Verdegal
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
- Departamento de Fisiología, Facultad de Medicina y Odontología, Universitat de València, València, Spain
| | - Daniel Pérez-Cremades
- Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
- Departamento de Fisiología, Facultad de Medicina y Odontología, Universitat de València, València, Spain
| | - Susana Novella
- Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
- Departamento de Fisiología, Facultad de Medicina y Odontología, Universitat de València, València, Spain
| | - Carlos Hermenegildo
- Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
- Departamento de Fisiología, Facultad de Medicina y Odontología, Universitat de València, València, Spain
| | - Federico V Pallardó
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
- Departamento de Fisiología, Facultad de Medicina y Odontología, Universitat de València, València, Spain
| | - José Luis García-Giménez
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
- Departamento de Fisiología, Facultad de Medicina y Odontología, Universitat de València, València, Spain
- Correspondence: José Luis García-Giménez, Departamento de Fisiología, Facultad de Medicina y Odontología, Universitat de València, València, 46010, Spain, Tel +34 963 864 646, Email
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12
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Sánchez KE, Rosenberg GA. Shared Inflammatory Pathology of Stroke and COVID-19. Int J Mol Sci 2022; 23:5150. [PMID: 35563537 PMCID: PMC9101120 DOI: 10.3390/ijms23095150] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 02/06/2023] Open
Abstract
Though COVID-19 is primarily characterized by symptoms in the periphery, it can also affect the central nervous system (CNS). This has been established by the association between stroke and COVID-19. However, the molecular mechanisms that cause stroke related to a COVID-19 infection have not been fully explored. More specifically, stroke and COVID-19 exhibit an overlap of molecular mechanisms. These similarities provide a way to better understand COVID-19 related stroke. We propose here that peripheral macrophages upregulate inflammatory proteins such as matrix metalloproteinases (MMPs) in response to SARS-CoV-2 infection. These inflammatory molecules and the SARS-CoV-2 virus have multiple negative effects related to endothelial dysfunction that results in the disruption of the blood-brain barrier (BBB). Finally, we discuss how the endothelial blood-brain barrier injury alters central nervous system function by leading to astrocyte dysfunction and inflammasome activation. Our goal is to elucidate such inflammatory pathways, which could provide insight into therapies to combat the negative neurological effects of COVID-19.
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Affiliation(s)
- Kathryn E. Sánchez
- Center for Memory and Aging, University of New Mexico, Albuquerque, NM 87106, USA;
| | - Gary A. Rosenberg
- Center for Memory and Aging, University of New Mexico, Albuquerque, NM 87106, USA;
- Department of Neurology, University of New Mexico, Albuquerque, NM 87106, USA
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13
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Guo W, Chen S, Li C, Xu J, Wang L. Application of Disulfiram and its Metabolites in Treatment of Inflammatory Disorders. Front Pharmacol 2022; 12:795078. [PMID: 35185542 PMCID: PMC8848744 DOI: 10.3389/fphar.2021.795078] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/17/2021] [Indexed: 12/27/2022] Open
Abstract
Disulfiram has been used clinically for decades as an anti-alcoholic drug. Recently, several studies have demonstrated the anti-inflammatory effects of disulfiram and its metabolism, which can alleviate the progression of inflammation in vivo and in vitro. In the current study, we summarize the anti-inflammatory mechanisms of disulfiram and its metabolism, including inhibition of pyroptosis by either covalently modifying gasdermin D or inactivating nod-like receptor protein 3 inflammasome, dual effects of intracellular reactive oxygen species production, and inhibition of angiogenesis. Furthermore, we review the potential application of disulfiram and its metabolism in treatment of inflammatory disorders, such as inflammatory bowel disease, inflammatory injury of kidney and liver, type 2 diabetes mellitus, sepsis, uveitis, and osteoarthritis.
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Affiliation(s)
- Wenyi Guo
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shihong Chen
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chengqing Li
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jianwei Xu
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lei Wang
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital, Shandong University, China
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14
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Zhou Q, Zhu Y, Li C, Li Z, Tang Z, Yuan B, Wang X, Zhang S, Wu X. Elevated CTSL Gene Expression Correlated with Proinflammatory Cytokines in Omental Adipose Tissue of Patients with Obesity. Diabetes Metab Syndr Obes 2022; 15:2277-2285. [PMID: 35936052 PMCID: PMC9348135 DOI: 10.2147/dmso.s373203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/18/2022] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Cathepsin L (CTSL) and B (CTSB) were lysosomal proteases, and their expression and activity contribute to the progression of inflammation in obese rodents. Our aim was to investigate CTSB and CTSL expression in omental adipose tissue (AT) of patients with obesity and to correlate CTSB and CTSL expression with proinflammatory cytokines (CCL-2, IL-6 and IL-1β). PATIENTS AND METHODS A total of 12 patients without obesity (NOB) and 51 patients with obesity (OB) were involved in this study. Omental AT was collected from all the participants for RNA extraction. Expressions of CTSB, CTSL and proinflammatory cytokines (CCL-2, IL-6 and IL-1β) were qualified with qRT-PCR. BMI (body mass index) and metabolic parameters were measured. RESULTS The mRNA expression levels of both CTSB and CTSL were upregulated in the OB group (t = 2.693, P < 0.05; t = 2.849, P<0.01) and were related to TC levels (Std.β=0.443, P<0.05; Std.β=0.439, P<0.05). However, only the CTSB level was related to BMI (Std.β=0.261, P<0.05). In multiple regression analysis, CTSL was independently associated with CCL-2, IL-6 and IL-1β levels (Std.β=0.352-0.462, P<0.05). CONCLUSION CTSB and CTSL gene expressions were elevated in the omental AT of OB group. CTSL, but not CTSB, was positively correlated with proinflammatory cytokines independently, suggesting that the dysregulation of CTSL may play a significant role in the inflammatory process.
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Affiliation(s)
- Qiong Zhou
- School of Public Health, Kunming Medical University, Kunming, People’s Republic of China
- Department of Endocrinology, Yan’an Hospital Affiliated to Kunming Medical University, Kunming, People’s Republic of China
| | - Yankun Zhu
- Department of General Surgery, Yan’an Hospital Affiliated to Kunming Medical University, Kunming, People’s Republic of China
| | - Chun Li
- Department of Endocrinology, Yan’an Hospital Affiliated to Kunming Medical University, Kunming, People’s Republic of China
| | - Zhiqiang Li
- School of Public Health, Kunming Medical University, Kunming, People’s Republic of China
| | - Zhe Tang
- Department of Endocrinology, Yan’an Hospital Affiliated to Kunming Medical University, Kunming, People’s Republic of China
| | - Baohong Yuan
- Department of General Surgery, Yan’an Hospital Affiliated to Kunming Medical University, Kunming, People’s Republic of China
| | - Xiaodan Wang
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Yan’an Hospital Affiliated to Kunming Medical University, Kunming, People’s Republic of China
| | - Shengqingyu Zhang
- School of Public Health, Kunming Medical University, Kunming, People’s Republic of China
| | - Xinan Wu
- School of Public Health, Kunming Medical University, Kunming, People’s Republic of China
- Correspondence: Xinan Wu, School of Public Health, Kunming Medical University, Kunming, 650500, People’s Republic of China, Tel +85-13888984762, Fax +86-871-65933614, Email
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15
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Shishkova DK, Velikanova EA, Bogdanov LA, Sinitsky MY, Kostyunin AE, Tsepokina AV, Gruzdeva OV, Mironov AV, Mukhamadiyarov RA, Glushkova TV, Krivkina EO, Matveeva VG, Hryachkova ON, Markova VE, Dyleva YA, Belik EV, Frolov AV, Shabaev AR, Efimova OS, Popova AN, Malysheva VY, Kolmykov RP, Sevostyanov OG, Russakov DM, Dolganyuk VF, Gutakovsky AK, Zhivodkov YA, Kozhukhov AS, Brusina EB, Ismagilov ZR, Barbarash OL, Yuzhalin AE, Kutikhin AG. Calciprotein Particles Link Disturbed Mineral Homeostasis with Cardiovascular Disease by Causing Endothelial Dysfunction and Vascular Inflammation. Int J Mol Sci 2021; 22:ijms222212458. [PMID: 34830334 PMCID: PMC8626027 DOI: 10.3390/ijms222212458] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 12/14/2022] Open
Abstract
An association between high serum calcium/phosphate and cardiovascular events or death is well-established. However, a mechanistic explanation of this correlation is lacking. Here, we examined the role of calciprotein particles (CPPs), nanoscale bodies forming in the human blood upon its supersaturation with calcium and phosphate, in cardiovascular disease. The serum of patients with coronary artery disease or cerebrovascular disease displayed an increased propensity to form CPPs in combination with elevated ionised calcium as well as reduced albumin levels, altogether indicative of reduced Ca2+-binding capacity. Intravenous administration of CPPs to normolipidemic and normotensive Wistar rats provoked intimal hyperplasia and adventitial/perivascular inflammation in both balloon-injured and intact aortas in the absence of other cardiovascular risk factors. Upon the addition to primary human arterial endothelial cells, CPPs induced lysosome-dependent cell death, promoted the release of pro-inflammatory cytokines, stimulated leukocyte adhesion, and triggered endothelial-to-mesenchymal transition. We concluded that CPPs, which are formed in the blood as a result of altered mineral homeostasis, cause endothelial dysfunction and vascular inflammation, thereby contributing to the development of cardiovascular disease.
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Affiliation(s)
- Daria K. Shishkova
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Elena A. Velikanova
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Leo A. Bogdanov
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Maxim Yu. Sinitsky
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Alexander E. Kostyunin
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Anna V. Tsepokina
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Olga V. Gruzdeva
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Andrey V. Mironov
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Rinat A. Mukhamadiyarov
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Tatiana V. Glushkova
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Evgenia O. Krivkina
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Vera G. Matveeva
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Oksana N. Hryachkova
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Victoria E. Markova
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Yulia A. Dyleva
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Ekaterina V. Belik
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Alexey V. Frolov
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Amin R. Shabaev
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Olga S. Efimova
- Institute of Coal Chemistry and Material Science, Federal Research Center of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, 18 Sovetskiy Avenue, 650000 Kemerovo, Russia; (O.S.E.); (A.N.P.); (V.Y.M.); (R.P.K.); (Z.R.I.)
| | - Anna N. Popova
- Institute of Coal Chemistry and Material Science, Federal Research Center of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, 18 Sovetskiy Avenue, 650000 Kemerovo, Russia; (O.S.E.); (A.N.P.); (V.Y.M.); (R.P.K.); (Z.R.I.)
| | - Valentina Yu. Malysheva
- Institute of Coal Chemistry and Material Science, Federal Research Center of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, 18 Sovetskiy Avenue, 650000 Kemerovo, Russia; (O.S.E.); (A.N.P.); (V.Y.M.); (R.P.K.); (Z.R.I.)
| | - Roman P. Kolmykov
- Institute of Coal Chemistry and Material Science, Federal Research Center of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, 18 Sovetskiy Avenue, 650000 Kemerovo, Russia; (O.S.E.); (A.N.P.); (V.Y.M.); (R.P.K.); (Z.R.I.)
| | - Oleg G. Sevostyanov
- Institute of Fundamental Sciences, Kemerovo State University, 6 Krasnaya Street, 650000 Kemerovo, Russia; (O.G.S.); (D.M.R.); (V.F.D.)
| | - Dmitriy M. Russakov
- Institute of Fundamental Sciences, Kemerovo State University, 6 Krasnaya Street, 650000 Kemerovo, Russia; (O.G.S.); (D.M.R.); (V.F.D.)
| | - Viatcheslav F. Dolganyuk
- Institute of Fundamental Sciences, Kemerovo State University, 6 Krasnaya Street, 650000 Kemerovo, Russia; (O.G.S.); (D.M.R.); (V.F.D.)
| | - Anton K. Gutakovsky
- Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, 13 Akademika Lavrentieva Avenue, 630090 Novosibirsk, Russia; (A.K.G.); (Y.A.Z.); (A.S.K.)
| | - Yuriy A. Zhivodkov
- Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, 13 Akademika Lavrentieva Avenue, 630090 Novosibirsk, Russia; (A.K.G.); (Y.A.Z.); (A.S.K.)
| | - Anton S. Kozhukhov
- Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, 13 Akademika Lavrentieva Avenue, 630090 Novosibirsk, Russia; (A.K.G.); (Y.A.Z.); (A.S.K.)
| | - Elena B. Brusina
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Zinfer R. Ismagilov
- Institute of Coal Chemistry and Material Science, Federal Research Center of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, 18 Sovetskiy Avenue, 650000 Kemerovo, Russia; (O.S.E.); (A.N.P.); (V.Y.M.); (R.P.K.); (Z.R.I.)
| | - Olga L. Barbarash
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Arseniy E. Yuzhalin
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
| | - Anton G. Kutikhin
- Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, 650002 Kemerovo, Russia; (D.K.S.); (E.A.V.); (L.A.B.); (M.Y.S.); (A.E.K.); (A.V.T.); (O.V.G.); (A.V.M.); (R.A.M.); (T.V.G.); (E.O.K.); (V.G.M.); (O.N.H.); (V.E.M.); (Y.A.D.); (E.V.B.); (A.V.F.); (A.R.S.); (E.B.B.); (O.L.B.); (A.E.Y.)
- Correspondence: ; Tel.: +7-960-907-7067
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16
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lv L, Qin T, Huang Q, Jiang H, Chen F, Long F, Ren L, Liu J, Xie Y, Zeng M. Targeting Tristetraprolin Expression or Functional Activity Regulates Inflammatory Response Induced by MSU Crystals. Front Immunol 2021; 12:675534. [PMID: 34335573 PMCID: PMC8322984 DOI: 10.3389/fimmu.2021.675534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/21/2021] [Indexed: 12/13/2022] Open
Abstract
The RNA-binding protein tristetraprolin (TTP) is an anti-inflammatory factor that prompts the mRNA decay of target mRNAs and is involved in inflammatory diseases such as rheumatoid arthritis (RA). TTP is regulated by phosphorylation, and protein phosphatase 2A (PP2A) can dephosphorylate TTP to activate its mRNA-degrading function. Some small molecules can enhance PP2A activation. Short interfering RNA (siRNA) targeting TTP expression or PP2A agonist (Arctigenin) was administered to monosodium urate (MSU) crystal-induced J774A.1 cells, and the expression of inflammatory related genes was detected by RT-PCR and Western blot assays. The effects of Arctigenin in mouse models of acute inflammation induced by MSU crystals, including peritonitis and arthritis, were evaluated. The data indicated that TTP expression levels and endogenous PP2A activity were increased in MSU-crystal treated J774A.1 cells. TTP knockdown exacerbated inflammation-related genes expression and NLRP3 inflammasome activation. However, PP2A agonist treatment (Arctigenin) suppressed MSU crystal-induced inflammation in J774A.1 cells. Arctigenin also relieved mitochondrial reactive oxygen species (mtROS) production and improved lysosomal membrane permeability in MSU crystal-treated J774A.1 cells. Moreover, TTP knockdown reversed the anti-inflammatory and antioxidant effects of Arctigenin. Oral administration of Arctigenin significantly alleviated foot pad swelling, the number of inflammatory cells in peritoneal lavage fluids and the production of IL-1β in the mouse model of inflammation induced by MSU crystals. Collectively, these data imply that targeting TTP expression or functional activity may provide a potential therapeutic strategy for inflammation caused by MSU crystals.
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Affiliation(s)
- Linxi lv
- Institute of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Biology Group of Preclinical School of North SiChuan Medical College, Nanchong, China
| | - Ting Qin
- Institute of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Qiushi Huang
- Institute of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Biology Group of Preclinical School of North SiChuan Medical College, Nanchong, China
| | - Hui Jiang
- Institute of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Biology Group of Preclinical School of North SiChuan Medical College, Nanchong, China
| | - Feng Chen
- Institute of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Biology Group of Preclinical School of North SiChuan Medical College, Nanchong, China
| | - Fan Long
- Clinical Lab of The Fifth People’s Hospital of Nanchong City, Nanchong, China
| | - Long Ren
- Clinical Lab of The Fifth People’s Hospital of Nanchong City, Nanchong, China
| | - Jianpin Liu
- Institute of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yongen Xie
- Biology Group of Preclinical School of North SiChuan Medical College, Nanchong, China
| | - Mei Zeng
- Institute of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Biology Group of Preclinical School of North SiChuan Medical College, Nanchong, China
- Clinical Lab of The Fifth People’s Hospital of Nanchong City, Nanchong, China
- Medical Imaging Key Laboratory of Sichuan, North SiChuan Medical College, Nanchong, China
- Academician (Expert) Workstation, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
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17
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Perišić Nanut M, Pečar Fonović U, Jakoš T, Kos J. The Role of Cysteine Peptidases in Hematopoietic Stem Cell Differentiation and Modulation of Immune System Function. Front Immunol 2021; 12:680279. [PMID: 34335582 PMCID: PMC8322073 DOI: 10.3389/fimmu.2021.680279] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 07/01/2021] [Indexed: 01/21/2023] Open
Abstract
Cysteine cathepsins are primarily involved in the degradation and recycling of proteins in endo-lysosomal compartments but are also gaining recognition as pivotal proteolytic contributors to various immune functions. Through their extracellular proteolytic activities within the hematopoietic stem cell niche, they are involved in progenitor cell mobilization and differentiation. Cysteine cathepsins, such as cathepsins L and S contribute to antigen-induced adaptive immunity through major histocompatibility complex class II antigen presentation whereas cathepsin X regulates T-cell migration. By regulating toll-like receptor signaling and cytokine secretion cysteine cathepsins activate innate immune cells and affect their functional differentiation. Cathepsins C and H are expressed in cytotoxic T lymphocytes and natural killer cells and are involved in processing of pro-granzymes into proteolytically active forms. Cytoplasmic activities of cathepsins B and L contribute to the maintenance of homeostasis of the adaptive immune response by regulating cell death of T and B lymphocytes. The expression pattern, localization, and activity of cysteine cathepsins is tightly connected to their function in immune cells. Furthermore, cysteine cathepsins together with their endogenous inhibitors, serve as mediators in the interplay between cancer and immune cells that results in immune cell anergy. The aim of the present article is to review the mechanisms of dysregulation of cysteine cathepsins and their inhibitors in relation to immune dysfunction to address new possibilities for regulation of their function.
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Affiliation(s)
| | | | - Tanja Jakoš
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Janko Kos
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia.,Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
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18
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Lian D, Liu J, Han R, Jin J, Zhu L, Zhang Y, Huang Y, Wang X, Xian S, Chen Y. Kakonein restores diabetes-induced endothelial junction dysfunction via promoting autophagy-mediated NLRP3 inflammasome degradation. J Cell Mol Med 2021; 25:7169-7180. [PMID: 34180143 PMCID: PMC8335672 DOI: 10.1111/jcmm.16747] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/25/2021] [Accepted: 06/03/2021] [Indexed: 12/13/2022] Open
Abstract
In diabetes‐induced complications, inflammatory‐mediated endothelial dysfunction is the core of disease progression. Evidence shows that kakonein, an isoflavone common in Pueraria, can effectively treat diabetes and its complications. Therefore, we explored whether kakonein protects cardiovascular endothelial function by inhibiting inflammatory responses. In this study, C57BL/6J mice were injected with streptozocin to establish a diabetes model and treated with kakonein or metformin for 7 days. The protective effect of kakonein on cardiovascular endothelial junctions and NLRP3 inflammasome activation was verified through immunofluorescence and ELISA assay. In addition, the regulation of autophagy on the NLRP3 inflammasome was investigated through Western blot, immunofluorescence and RT‐qPCR. Results showed that kakonein restored the function of endothelial junctions and inhibited the assembly and activation of the NLRP3 inflammasome. Interestingly, kakonein decreased the expression of NLRP3 inflammasome protein by not reducing the transcriptional levels of NLRP3 and caspase‐1. Kakonein activated autophagy in an AMPK‐dependent manner, which reduced the activation of the NLRP3 inflammasome. In addition, kakonein inhibited both hyperglycaemia‐induced cardiovascular endothelial junction dysfunction and NLRP3 inflammasome activation, similar to autophagy agonist. Our findings indicated that kakonein exerts a protective effect on hyperglycaemia‐induced chronic vascular disease by regulating the NLRP3 inflammasome through autophagy.
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Affiliation(s)
- Dawei Lian
- The First Affiliated Hospital and Postdoctoral Research Station, Guangzhou University of Chinese Medicine, Guangzhou, China.,School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiaying Liu
- Laboratory Animal Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ruifang Han
- Laboratory Animal Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiaqi Jin
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Li Zhu
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yanhong Zhang
- Department of Traditional Chinese Medicine, School of Medicine, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, China
| | - Yi Huang
- Department of Stomatology, The School of Dental Medicine, Jinan University First Affiliated Hospital, Guangzhou, China
| | - Xiao Wang
- Laboratory Animal Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shaoxiang Xian
- The First Affiliated Hospital and Postdoctoral Research Station, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yang Chen
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou, China
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19
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Jia C, Zhuge Y, Zhang S, Ni C, Wang L, Wu R, Niu C, Wen Z, Rong X, Qiu H, Chu M. IL-37b alleviates endothelial cell apoptosis and inflammation in Kawasaki disease through IL-1R8 pathway. Cell Death Dis 2021; 12:575. [PMID: 34083516 PMCID: PMC8174541 DOI: 10.1038/s41419-021-03852-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 12/11/2022]
Abstract
Kawasaki disease (KD) is an acute vasculitis of pediatric populations that may develop coronary artery aneurysms if untreated. It has been regarded as the principal cause of acquired heart disease in children of the developed countries. Interleukin (IL)-37, as one of the IL-1 family members, is a natural suppressor of inflammation that is caused by activation of innate and adaptive immunity. However, detailed roles of IL-37 in KD are largely unclear. Sera from patients with KD displayed that IL-37 level was significantly decreased compared with healthy controls (HCs). QRT-PCR and western blot analyses showed that the expression level of IL-37 variant, IL-37b, was remarkably downregulated in human umbilical vein endothelial cells (HUVECs) exposed to KD sera-treated THP1 cells. Therefore, we researched the role of IL-37b in the context of KD and hypothesized that IL-37b may have a powerful protective effect in KD patients. We first observed and substantiated the protective role of IL-37b in a mouse model of KD induced by Candida albicans cell wall extracts (CAWS). In vitro experiments demonstrated that IL-37b alleviated endothelial cell apoptosis and inflammation via IL-1R8 receptor by inhibiting ERK and NFκB activation, which were also recapitulated in the KD mouse model. Together, our findings suggest that IL-37b play an effective protective role in coronary endothelial damage in KD, providing new evidence that IL-37b is a potential candidate drug to treat KD.
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Affiliation(s)
- Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
| | - Yingzhi Zhuge
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
| | - Shuchi Zhang
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
| | - Chao Ni
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
| | - Linlin Wang
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
| | - Rongzhou Wu
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
| | - Chao Niu
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
| | - Zhengwang Wen
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
| | - Xing Rong
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
| | - Huixian Qiu
- Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China.
| | - Maoping Chu
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China. .,Children's Heart Center, Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China.
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20
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Hara T, Yamamura K, Sakai Y. The up-to-date pathophysiology of Kawasaki disease. Clin Transl Immunology 2021; 10:e1284. [PMID: 33981434 PMCID: PMC8109476 DOI: 10.1002/cti2.1284] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/12/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022] Open
Abstract
Kawasaki disease (KD) is an acute systemic vasculitis of an unknown aetiology. A small proportion of children exposed to severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) or infected by Yersinia reproducibly develop principal symptoms of KD in various ethnic areas, but not in all studies. These microbes provoke a rapid cell‐damaging process, called ‘pyroptosis’, which is characterised by a subsequent release of proinflammatory cellular components from damaged endothelial and innate immune cells. In agreement with these molecular events, patients with KD show elevated levels of damage‐associated molecular patterns derived from cell death. In addition, an overwhelming amount of oxidative stress‐associated molecules, including oxidised phospholipids or low‐density lipoproteins, are generated as by‐products of inflammation during the acute phase of the disease. These molecules induce abnormalities in the acquired immune system and activate innate immune and vascular cells to produce a range of proinflammatory molecules such as cytokines, chemokines, proteases and reactive oxygen species. These responses further recruit immune cells to the arterial wall, wherein inflammation and oxidative stress closely interact and mutually amplify each other. The inflammasome, a key component of the innate immune system, plays an essential role in the development of vasculitis in KD. Thus, innate immune memory, or ‘trained immunity’, may promote vasculitis in KD. Hence, this review will be helpful in understanding the pathophysiologic pathways leading to the development of principal KD symptoms and coronary artery lesions in patients with KD, as well as in subsets of patients with SARS‐CoV‐2 and Yersinia infections.
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Affiliation(s)
- Toshiro Hara
- Kawasaki Disease Center Fukuoka Children's Hospital Fukuoka Japan
| | - Kenichiro Yamamura
- Department of Perinatal and Pediatric Medicine, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - Yasunari Sakai
- Department of Pediatrics Graduate School of Medical Sciences Kyushu University Fukuoka Japan
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21
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Meeran MFN, Laham F, Azimullah S, Sharma C, Al Kaabi AJ, Tariq S, Adeghate E, Goyal SN, Ojha S. β-Caryophyllene, a natural bicyclic sesquiterpene attenuates β-adrenergic agonist-induced myocardial injury in a cannabinoid receptor-2 dependent and independent manner. Free Radic Biol Med 2021; 167:348-366. [PMID: 33588052 DOI: 10.1016/j.freeradbiomed.2021.01.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/26/2020] [Accepted: 01/25/2021] [Indexed: 12/11/2022]
Abstract
The downregulation of cannabinoid type-2 receptors (CB2R) have been reported in numerous diseases including cardiovascular diseases (CVDs). The activation of CB2R has recently emerged as an important therapeutic target to mitigate myocardial injury. We examined whether CB2R activation can protect against isoproterenol (ISO)-induced myocardial injury (MI) in rats. In the present study, we investigated the cardioprotective effect of β-caryophyllene (BCP), a naturally occurring dietary cannabinoid in rat model of MI. Rats were pre- and co-treated with BCP (50 mg/kg, orally) twice daily for 10 days along with subcutaneous injection of ISO (85 mg/kg) at an interval of 24 h for two days (9th and 10th days). AM630 (1 mg/kg), a CB2 receptor antagonist, was injected intraperitoneal as a pharmacological challenge prior to BCP treatment to reveal CB2R-mediated cardioprotective mechanisms of BCP. Desensitization of beta-adrenergic receptor (β-AR) signaling, receptor phosphorylation and recruitment of adapter β-arrestins were observed in ISO-induced MI in rats. ISO injections caused impaired cardiac function, elevated the levels of serum cardiac marker enzymes, and enhanced oxidative stress markers along with altered PI3K/Akt and NrF2/Keap1/HO-1 signaling pathways. ISO also promoted lysosomal dysfunction along with activation of NLRP3 inflammasomes and TLR4-NFκB/MAPK signaling and triggered rise in proinflammatory cytokines. There was a concomitant mitochondrial dysfunction followed by the activation of endoplasmic reticulum (ER) stress-mediated Hippo signaling and intrinsic pathway of apoptosis as well as altered autophagic flux/mTOR signaling in ISO-induced MI. Furthermore, ISO also triggered dyslipidemia evidenced by altered lipids, lipoproteins and lipid marker enzymes along with ionic homeostasis malfunction. However, treatment with BCP resulted in significant protective effects on all biochemical and molecular parameters analyzed. The cardioprotective effects were further strengthened by preservation of cardiomyocytes and cell organelles as observed in histopathological and ultrastructural studies. Interestingly, treatment with AM630, a CB2R antagonist was observed to abrogate the protective effects of BCP on the biochemical and molecular parameters except hyperlipidemia and ionic homeostasis in ISO-induced MI in rats. The present study findings demonstrate that BCP possess the potential to protect myocardium against ISO-induced MI in a CB2-dependent and independent manner.
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Affiliation(s)
- M F Nagoor Meeran
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, PO Box - 17666, Al Ain, United Arab Emirates
| | - Farah Laham
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, PO Box - 17666, Al Ain, United Arab Emirates
| | - Sheikh Azimullah
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, PO Box - 17666, Al Ain, United Arab Emirates
| | - Charu Sharma
- Department of Internal Medicine, College of Medicine and Health Sciences, United Arab Emirates University, PO Box - 17666, Al Ain, United Arab Emirates
| | - Ahmed Juma Al Kaabi
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, PO Box - 17666, Al Ain, United Arab Emirates
| | - Saeed Tariq
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, PO Box - 17666, Al Ain, United Arab Emirates
| | - Ernest Adeghate
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, PO Box - 17666, Al Ain, United Arab Emirates
| | - Sameer N Goyal
- Shri Vile Parle Kelavani Mandal's Institute of Pharmacy, Dhule, 424001, Maharashtra, India
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, PO Box - 17666, Al Ain, United Arab Emirates.
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22
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Zhong J, Yu R, Zhou Q, Liu P, Liu Z, Bian Y. Naringenin prevents TNF-α-induced gut-vascular barrier disruption associated with inhibiting the NF-κB-mediated MLCK/p-MLC and NLRP3 pathways. Food Funct 2021; 12:2715-2725. [PMID: 33667286 DOI: 10.1039/d1fo00155h] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The microvasculature endothelium accurately regulates the passage of molecules across the gut-vascular barrier (GVB), which plays an essential role in intestinal immunity. Naringenin is reported to have therapeutic potential against several intestinal disorders. However, the effect of naringenin on GVB disruption has been rarely studied. This study aims to investigate the effect of naringenin on GVB function and the potential mechanism. In the present study, the in vitro GVB disruption of rat intestinal microvascular endothelial cells (RIMVEC) was induced by 50 ng mL-1 of tumor necrosis factor-α (TNF-α). The integrity of the in vitro GVB was determined by Evans blue (EB)-albumin efflux assay and trans-endothelial electrical resistance (TER). Meanwhile, the expression of tight junction proteins and the related NF-κB, MLCK/p-MLC and NLRP3 pathways were determined using enzyme-linked immunosorbent assay (ELISA), real-time quantitative polymerase chain reaction (RT-qPCR), western blot analysis and immunofluorescence. The results show that naringenin (100 μM) inhibits TNF-α-induced interleukin (IL)-6 hypersecretion, alleviates GVB disruption and mitigates the change in the tight junction protein expression pattern. Naringenin inhibits the GVB-disruption-associated activation of the MLCK/p-MLC system and TLR4/NF-κB/NLRP3 pathways. Furthermore, naringenin shows a similar effect to that of NF-κB inhibitor Bay 11-7082 in reducing the TNF-α-induced activation of NLRP3, p-MLC and secondary GVB disruption. The results suggest that naringenin evidently alleviates TNF-α-induced in vitro GVB disruption via the maintenance of a tight junction protein pattern, partly with the inhibition of the NF-κB-mediated MLCK/p-MLC and NLRP3 pathway activation.
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Affiliation(s)
- Jia Zhong
- Division of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing 100193, P. R. China.
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23
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Gora IM, Ciechanowska A, Ladyzynski P. NLRP3 Inflammasome at the Interface of Inflammation, Endothelial Dysfunction, and Type 2 Diabetes. Cells 2021; 10:cells10020314. [PMID: 33546399 PMCID: PMC7913585 DOI: 10.3390/cells10020314] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/24/2021] [Accepted: 01/30/2021] [Indexed: 01/08/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM), accounting for 90–95% cases of diabetes, is characterized by chronic inflammation. The mechanisms that control inflammation activation in T2DM are largely unexplored. Inflammasomes represent significant sensors mediating innate immune responses. The aim of this work is to present a review of links between the NLRP3 inflammasome, endothelial dysfunction, and T2DM. The NLRP3 inflammasome activates caspase-1, which leads to the maturation of pro-inflammatory cytokines interleukin 1β and interleukin 18. In this review, we characterize the structure and functions of NLRP3 inflammasome as well as the most important mechanisms and molecules engaged in its activation. We present evidence of the importance of the endothelial dysfunction as the first key step to activating the inflammasome, which suggests that suppressing the NLRP3 inflammasome could be a new approach in depletion hyperglycemic toxicity and in averting the onset of vascular complications in T2DM. We also demonstrate reports showing that the expression of a few microRNAs that are also known to be involved in either NLRP3 inflammasome activation or endothelial dysfunction is deregulated in T2DM. Collectively, this evidence suggests that T2DM is an inflammatory disease stimulated by pro-inflammatory cytokines. Finally, studies revealing the role of glucose concentration in the activation of NLRP3 inflammasome are analyzed. The more that is known about inflammasomes, the higher the chances to create new, effective therapies for patients suffering from inflammatory diseases. This may offer potential novel therapeutic perspectives in T2DM prevention and treatment.
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Yuan X, Bhat OM, Samidurai A, Das A, Zhang Y, Li PL. Reversal of Endothelial Extracellular Vesicle-Induced Smooth Muscle Phenotype Transition by Hypercholesterolemia Stimulation: Role of NLRP3 Inflammasome Activation. Front Cell Dev Biol 2020; 8:597423. [PMID: 33409276 PMCID: PMC7779768 DOI: 10.3389/fcell.2020.597423] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 12/04/2020] [Indexed: 01/18/2023] Open
Abstract
Recent studies reported that vascular endothelial cells (ECs) secrete NLR family pyrin domain-containing 3 (NLRP3) inflammasome products such as interleukin-1β (IL-1β) via extracellular vesicles (EVs) under various pathological conditions. EVs represent one of the critical mechanisms mediating the cell-to-cell communication between ECs and vascular smooth muscle cells (VSMCs). However, whether or not the inflammasome-dependent EVs directly participate in the regulation of VSMC function remains unknown. In the present study, we found that in cultured carotid ECs, atherogenic stimulation by oxysterol 7-ketocholesterol (7-Ket) induced NLRP3 inflammasome formation and activation, reduced lysosome-multivesicular bodies (MVBs) fusion, and increased secretion of EVs that contain inflammasome product IL-1β. These EC-derived IL-1β-containing EVs promoted synthetic phenotype transition of co-cultured VSMCs, whereas EVs from unstimulated ECs have the opposite effects. Moreover, acid ceramidase (AC) deficiency or lysosome inhibition further exaggerated the 7-Ket-induced release of IL-1β-containing EVs in ECs. Using a Western diet (WD)-induced hypercholesterolemia mouse model, we found that endothelial-specific AC gene knockout mice (Asah1fl/fl/ECCre) exhibited augmented WD-induced EV secretion with IL-1β and more significantly decreased the interaction of MVBs with lysosomes in the carotid arterial wall compared to their wild-type littermates (WT/WT). The endothelial AC deficiency in Asah1fl/fl/ECCre mice also resulted in enhanced VSMC phenotype transition and accelerated neointima formation. Together, these results suggest that NLRP3 inflammasome-dependent IL-1β production during hypercholesterolemia promotes VSMC phenotype transition to synthetic status via EV machinery, which is controlled by lysosomal AC activity. Our findings provide novel mechanistic insights into understanding the pathogenic role of endothelial NLRP3 inflammasome in vascular injury through EV-mediated EC-to-VSMC regulation.
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Affiliation(s)
- Xinxu Yuan
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Owais M Bhat
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Arun Samidurai
- Pauley Heart Center, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Anindita Das
- Pauley Heart Center, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Yang Zhang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, United States
| | - Pin-Lan Li
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
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HMGB1 mediates homocysteine-induced endothelial cells pyroptosis via cathepsin V-dependent pathway. Biochem Biophys Res Commun 2020; 532:640-646. [DOI: 10.1016/j.bbrc.2020.08.091] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 08/24/2020] [Indexed: 01/20/2023]
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Bai B, Yang Y, Wang Q, Li M, Tian C, Liu Y, Aung LHH, Li PF, Yu T, Chu XM. NLRP3 inflammasome in endothelial dysfunction. Cell Death Dis 2020; 11:776. [PMID: 32948742 PMCID: PMC7501262 DOI: 10.1038/s41419-020-02985-x] [Citation(s) in RCA: 219] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 08/31/2020] [Accepted: 09/04/2020] [Indexed: 12/24/2022]
Abstract
Inflammasomes are a class of cytosolic protein complexes. They act as cytosolic innate immune signal receptors to sense pathogens and initiate inflammatory responses under physiological and pathological conditions. The NLR-family pyrin domain-containing protein 3 (NLRP3) inflammasome is the most characteristic multimeric protein complex. Its activation triggers the cleavage of pro-interleukin (IL)-1β and pro-IL-18, which are mediated by caspase-1, and secretes mature forms of these mediators from cells to promote the further inflammatory process and oxidative stress. Simultaneously, cells undergo pro-inflammatory programmed cell death, termed pyroptosis. The danger signals for activating NLRP3 inflammasome are very extensive, especially reactive oxygen species (ROS), which act as an intermediate trigger to activate NLRP3 inflammasome, exacerbating subsequent inflammatory cascades and cell damage. Vascular endothelium at the site of inflammation is actively involved in the regulation of inflammation progression with important implications for cardiovascular homeostasis as a dynamically adaptable interface. Endothelial dysfunction is a hallmark and predictor for cardiovascular ailments or adverse cardiovascular events, such as coronary artery disease, diabetes mellitus, hypertension, and hypercholesterolemia. The loss of proper endothelial function may lead to tissue swelling, chronic inflammation, and the formation of thrombi. As such, elimination of endothelial cell inflammation or activation is of clinical relevance. In this review, we provided a comprehensive perspective on the pivotal role of NLRP3 inflammasome activation in aggravating oxidative stress and endothelial dysfunction and the possible underlying mechanisms. Furthermore, we highlighted the contribution of noncoding RNAs to NLRP3 inflammasome activation-associated endothelial dysfunction, and outlined potential clinical drugs targeting NLRP3 inflammasome involved in endothelial dysfunction. Collectively, this summary provides recent developments and perspectives on how NLRP3 inflammasome interferes with endothelial dysfunction and the potential research value of NLRP3 inflammasome as a potential mediator of endothelial dysfunction.
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Affiliation(s)
- Baochen Bai
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China
| | - Yanyan Yang
- Department of lmmunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Qi Wang
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China
| | - Min Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266021, China
| | - Chao Tian
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China
| | - Yan Liu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266021, China
| | - Lynn Htet Htet Aung
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266021, China
| | - Pei-Feng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266021, China
| | - Tao Yu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266021, China. .,Department of Cardiac Ultrasound, The Affiliated hospital of Qingdao University, Qingdao, 266000, China.
| | - Xian-Ming Chu
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China. .,Department of Cardiology, The Affiliated Cardiovascular Hospital of Qingdao University, Qingdao, 266032, China.
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Nagakannan P, Tabeshmehr P, Eftekharpour E. Oxidative damage of lysosomes in regulated cell death systems: Pathophysiology and pharmacologic interventions. Free Radic Biol Med 2020; 157:94-127. [PMID: 32259579 DOI: 10.1016/j.freeradbiomed.2020.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/16/2022]
Abstract
Lysosomes are small specialized organelles containing a variety of different hydrolase enzymes that are responsible for degradation of all macromolecules, entering the cells through the endosomal system or originated from the internal sources. This allows for transport and recycling of nutrients and internalization of surface proteins for antigen presentation as well as maintaining cellular homeostasis. Lysosomes are also important storage compartments for metal ions and nutrients. The integrity of lysosomal membrane is central to maintaining their normal function, but like other cellular membranes, lysosomal membrane is subject to damage mediated by reactive oxygen species. This results in spillage of lysosomal enzymes into the cytoplasm, leading to proteolytic damage to cellular systems and organelles. Several forms of lysosomal dependent cell death have been identified in diseases. Examination of these events are important for finding treatment strategies relevant to cancer or neurodegenerative diseases as well as autoimmune deficiencies. In this review, we have examined the current literature on involvement of lysosomes in induction of programed cell death and have provided an extensive list of therapeutic approaches that can modulate cell death. Exploitation of these mechanisms can lead to novel therapies for cancer and neurodegenerative diseases.
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Affiliation(s)
- Pandian Nagakannan
- Regenerative Medicine Program and Spinal Cord Research Centre, Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Parisa Tabeshmehr
- Regenerative Medicine Program and Spinal Cord Research Centre, Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Eftekhar Eftekharpour
- Regenerative Medicine Program and Spinal Cord Research Centre, Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada.
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Detrimental Effects of UVB on Retinal Pigment Epithelial Cells and Its Role in Age-Related Macular Degeneration. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1904178. [PMID: 32855763 PMCID: PMC7443017 DOI: 10.1155/2020/1904178] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 07/03/2020] [Accepted: 07/08/2020] [Indexed: 11/25/2022]
Abstract
Retinal pigment epithelial (RPE) cells are an essential part of the human eye because they not only mediate and control the transfer of fluids and solutes but also protect the retina against photooxidative damage and renew photoreceptor cells through phagocytosis. However, their function necessitates cumulative exposure to the sun resulting in UV damage, which may lead to the development of age-related macular degeneration (AMD). Several studies have shown that UVB induces direct DNA damage and oxidative stress in RPE cells by increasing ROS and dysregulating endogenous antioxidants. Activation of different signaling pathways connected to inflammation, cell cycle arrest, and intrinsic apoptosis was reported as well. Besides that, essential functions like phagocytosis, osmoregulation, and water permeability of RPE cells were also affected. Although the melanin within RPE cells can act as a photoprotectant, this photoprotection decreases with age. Nevertheless, the changes in lens epithelium-derived growth factor (LEDGF) and autophagic activity or application of bioactive compounds from natural products can reverse the detrimental effect of UVB. Additionally, in vivo studies on the whole retina demonstrated that UVB irradiation induces gene and protein level dysregulation, indicating cellular stress and aberrations in the chromosome level. Morphological changes like retinal depigmentation and drusen formation were noted as well which is similar to the etiology of AMD, suggesting the connection of UVB damage with AMD. Therefore, future studies, which include mechanism studies via in vitro or in vivo and other potential bioactive compounds, should be pursued for a better understanding of the involvement of UVB in AMD.
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Poli G, Fabi C, Bellet MM, Costantini C, Nunziangeli L, Romani L, Brancorsini S. Epigenetic Mechanisms of Inflammasome Regulation. Int J Mol Sci 2020; 21:ijms21165758. [PMID: 32796686 PMCID: PMC7460952 DOI: 10.3390/ijms21165758] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/05/2020] [Accepted: 08/08/2020] [Indexed: 02/07/2023] Open
Abstract
The innate immune system represents the host’s first-line defense against pathogens, dead cells or environmental factors. One of the most important inflammatory pathways is represented by the activation of the NOD-like receptor (NLR) protein family. Some NLRs induce the assembly of large caspase-1-activating complexes called inflammasomes. Different types of inflammasomes have been identified that can respond to distinct bacterial, viral or fungal infections; sterile cell damage or other stressors, such as metabolic imbalances. Epigenetic regulation has been recently suggested to provide a complementary mechanism to control inflammasome activity. This regulation can be exerted through at least three main mechanisms, including CpG DNA methylation, histones post-translational modifications and noncoding RNA expression. The repression or promotion of expression of different inflammasomes (NLRP1, NLRP2, NLRP3, NLRP4, NLRP6, NLRP7, NLRP12 and AIM2) through epigenetic mechanisms determines the development of pathologies with variable severity. For example, our team recently explored the role of microRNAs (miRNAs) targeting and modulating the components of the inflammasome as potential biomarkers in bladder cancer and during therapy. This suggests that the epigenetic control of inflammasome-related genes could represent a potential target for further investigations of molecular mechanisms regulating inflammatory pathways.
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Affiliation(s)
- Giulia Poli
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
- Correspondence: ; Tel.: +39-0744-202-820
| | - Consuelo Fabi
- Department of Surgical and Biomedical Sciences, Urology and Andrology Clinic, University of Perugia, 05100 Terni, Italy;
| | - Marina Maria Bellet
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Claudio Costantini
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Luisa Nunziangeli
- Polo d’Innovazione di Genomica, Genetica e Biologia, 05100 Terni, Italy;
| | - Luigina Romani
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Stefano Brancorsini
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
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Deng W, Yang Z, Yue H, Ou Y, Hu W, Sun P. Disulfiram suppresses NLRP3 inflammasome activation to treat peritoneal and gouty inflammation. Free Radic Biol Med 2020; 152:8-17. [PMID: 32151746 DOI: 10.1016/j.freeradbiomed.2020.03.007] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/02/2020] [Accepted: 03/06/2020] [Indexed: 12/21/2022]
Abstract
The NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasome plays a vital role in mediating the innate immune system. Its aberrant activation contributes to the progression of several devastating diseases such as acute peritonitis, acute liver injury, sepsis, gout, and others. However, the medications targeting NLRP3 inflammasome are not available in the clinic. Reusing marketed drugs, which have been already proved to possess good pharmacokinetic profiles and safety, is a strategy to develop new NLRP3 inflammasome inhibitors for clinical trials. In this study, we identified disulfiram (DSF), an old marketed drug as a treatment for alcoholism, could effectively inhibit NLRP3 inflammasome activation and suppress pyroptotic cell death. DSF prevented lysosomal cathepsin B releasing into the cytoplasm, which in turn inactivated the NLRP3 inflammasome. DSF also reduced mitochondrial-independent ROS production. More importantly, treatment with DSF showed remarkable therapeutic effects on the LPS-induced peritoneal inflammation and MSU-induced gouty inflammation. This study provides a potential pharmacological approach to treating NLRP3-driven diseases and a tool to study NLRP3 biology.
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Affiliation(s)
- Wenmin Deng
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
| | - Zhongjin Yang
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
| | - Hu Yue
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
| | - Yitao Ou
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
| | - Wenhui Hu
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China.
| | - Ping Sun
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China.
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Higazi M, Abdeen S, Abu-Fanne R, Heyman SN, Masarwy A, Bdeir K, Maraga E, Cines DB, Higazi AAR. Opposing effects of HNP1 (α-defensin-1) on plasma cholesterol and atherogenesis. PLoS One 2020; 15:e0231582. [PMID: 32302327 PMCID: PMC7164655 DOI: 10.1371/journal.pone.0231582] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 03/26/2020] [Indexed: 12/13/2022] Open
Abstract
Atherosclerosis, the predominant cause of death in well-resourced countries, may develop in the presence of plasma lipid levels within the normal range. Inflammation may contribute to lesion development in these individuals, but the underlying mechanisms are not well understood. Transgenic mice expressing α-def-1 released from activated neutrophils develop larger lipid and macrophage-rich lesions in the proximal aortae notwithstanding hypocholesterolemia caused by accelerated clearance of α-def-1/low-density lipoprotein (LDL) complexes from the plasma. The phenotype does not develop when the release of α-def-1 is prevented with colchicine. However, ApoE-/- mice crossed with α-def-1 mice or given exogenous α-def-1 develop smaller aortic lesions associated with reduced plasma cholesterol, suggesting a protective effect of accelerated LDL clearance. Experiments were performed to address this seeming paradox and to determine if α-def-1 might provide a means to lower cholesterol and thereby attenuate atherogenesis. We confirmed that exposing ApoE-/- mice to α-def-1 lowers total plasma cholesterol and decreases lesion size. However, lesion size was larger than in mice with total plasma cholesterol lowered to the same extent by inhibiting its adsorption or by ingesting a low-fat diet. Furthermore, α-def-1 levels correlated independently with lesion size in ApoE-/- mice. These studies show that α-def-1 has competing effects on atherogenesis. Although α-def-1 accelerates LDL clearance from plasma, it also stimulates deposition and retention of LDL in the vasculature, which may contribute to development of atherosclerosis in individuals with normal or even low plasma levels of cholesterol. Inhibiting α-def-1 may attenuate the impact of chronic inflammation on atherosclerotic vascular disease.
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Affiliation(s)
- Mohamed Higazi
- Department of Clinical Biochemistry, Hadassah-Hebrew University, Jerusalem, Israel
| | - Suhair Abdeen
- Department of Clinical Biochemistry, Hadassah-Hebrew University, Jerusalem, Israel
| | - Rami Abu-Fanne
- Department of Clinical Biochemistry, Hadassah-Hebrew University, Jerusalem, Israel
| | - Samuel N. Heyman
- Department of Medicine, Hadassah University Hospital, Mt. Scopus, Jerusalem, Israel
| | - Aseel Masarwy
- Department of Clinical Biochemistry, Hadassah-Hebrew University, Jerusalem, Israel
| | - Khalil Bdeir
- Departments of Pathology and Laboratory Medicine, University of Pennsylvania-Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Emad Maraga
- Department of Clinical Biochemistry, Hadassah-Hebrew University, Jerusalem, Israel
| | - Douglas B. Cines
- Departments of Pathology and Laboratory Medicine, University of Pennsylvania-Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Abd Al-Roof Higazi
- Department of Clinical Biochemistry, Hadassah-Hebrew University, Jerusalem, Israel
- Departments of Pathology and Laboratory Medicine, University of Pennsylvania-Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
- * E-mail:
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Huang S, Che J, Chu Q, Zhang P. The Role of NLRP3 Inflammasome in Radiation-Induced Cardiovascular Injury. Front Cell Dev Biol 2020; 8:140. [PMID: 32226786 PMCID: PMC7080656 DOI: 10.3389/fcell.2020.00140] [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: 10/31/2019] [Accepted: 02/19/2020] [Indexed: 12/24/2022] Open
Abstract
The increasing risk of long-term adverse effects from radiotherapy on the cardiovascular structure is receiving increasing attention. However, the mechanisms underlying this increased risk remain poorly understood. Recently, the nucleotide-binding domain and leucine-rich-repeat-containing family pyrin 3 (NLRP3) inflammasome was suggested to play a critical role in radiation-induced cardiovascular injury. However, the relationship between ionizing radiation and the NLRP3 inflammasome in acute and chronic inflammation is complex. We reviewed literature detailing pathological changes and molecular mechanisms associated with radiation-induced damage to the cardiovascular structure, with a specific focus on NLRP3 inflammasome-related cardiovascular diseases. We also summarized possible therapeutic strategies for the prevention of radiation-induced heart disease (RIHD).
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Affiliation(s)
- Shanshan Huang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Che
- College of Life Sciences, Wuhan University, Wuhan, China
| | - Qian Chu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Zhang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Çağdaş D, Sürücü N, Tan Ç, Kayaoğlu B, Özgül RK, Akkaya-Ulum YZ, Aydınoğlu AT, Aytaç S, Gümrük F, Balci-Hayta B, Balci-Peynircioğlu B, Özen S, Gürsel M, Tezcan İ. Autoinflammation in addition to combined immunodeficiency: SLC29A3 gene defect. Mol Immunol 2020; 121:28-37. [PMID: 32151906 DOI: 10.1016/j.molimm.2020.02.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 02/08/2020] [Accepted: 02/20/2020] [Indexed: 01/01/2023]
Abstract
INTRODUCTION H Syndrome is an autosomal recessive (AR) disease caused by defects in SLCA29A3 gene. This gene encodes the equilibrative nucleoside transporter, the protein which is highly expressed in spleen, lymph node and bone marrow. Autoinflammation and autoimmunity accompanies H Syndrome (HS). AIM The aim was to further elucidate the mechanisms of disease by molecular studies in a patient with SLC29A3 gene defect. PATIENT AND METHODS Mitochondrial dysfunction, lysosomal integrity, cytokine response in response to stimulation with different pattern recognition receptor ligands, and circulating cell-free mitochondrial-DNA(ccf-mtDNA) level in plasma were analyzed compared to controls to understand the cellular triggers of autoinflammation. RNA sequencing (RS) analyses were also performed in monocytes before/after culture with lipopolysaccharide. RESULTS Patient had progressive destructive arthropathy in addition to clinical findings due to combined immunodeficiency. Pure red cell aplasia (PRCA), vitiligo, diabetes, multiple autoantibody positivity, lymphopenia, increased acute phase reactants were present. Recent thymic emigrants (RTE), naïve T cells were decreased, effector memory CD4 + T cells, nonclassical inflammatory monocytes were increased. Patient's peripheral blood mononuclear cells secreted more IL-1β and IL-6, showed lysosomal disruption and significant mitochondrial dysfunction compared to healthy controls. Plasma ccf-mtDNA level was significantly elevated compared to age-matched controls (p < 0.05). RNA sequencing studies revealed decreased expression of NLR Family Caspase Recrument-Domain Containing 4(NLRC4), 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 4(PFKFB4), serine dehydratase(SDS), heparan sulfate(Glucosamine) 3-O-sulfotransferase 1(HS3ST1), neutral cholesterol ester hydrolase 1 (NCEH1), and interleukin-8 (IL-8) in patient's monocytes compared to controls. Longstanding PRCA, which is possibly autoimmune, resolved after initiating monthly intravenous immunoglobulins (IVIG) and low dose steroids to the patient. CONCLUSION Although autoinflammation and autoimmunity are reported in HS, by functional analyses we here show in the present patient that over-active inflammasome pathway in HS might be related with mitochondrial and lysosomal dysfunction. Increased plasma ccf-mtDNA may be used as a biomarker of inflammasomopathy in HS. HS should be included in the classification of primary immunodeficiency diseases.
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Affiliation(s)
- Deniz Çağdaş
- Department of Pediatric Immunology, Hacettepe University Medical Faculty, Ankara, Turkey.
| | - Naz Sürücü
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Çağman Tan
- Institute of Child Health, Hacettepe University Medical Faculty, Ankara, Turkey
| | - Başak Kayaoğlu
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Rıza Köksal Özgül
- Department of Pediatric Metabolism, Hacettepe University Medical Faculty, Ankara, Turkey
| | - Yeliz Z Akkaya-Ulum
- Department of Medical Biology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ayşe Tülay Aydınoğlu
- Department of Medical Biology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Selin Aytaç
- Department of Pediatric Hematology, Hacettepe University Medical Faculty, Ankara, Turkey
| | - Fatma Gümrük
- Department of Pediatric Hematology, Hacettepe University Medical Faculty, Ankara, Turkey
| | - Burcu Balci-Hayta
- Department of Medical Biology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | | | - Seza Özen
- Department of Pediatric Rheumatology, Hacettepe University Medical Faculty, Ankara, Turkey
| | - Mayda Gürsel
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - İlhan Tezcan
- Department of Pediatric Immunology, Hacettepe University Medical Faculty, Ankara, Turkey
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Pereira CA, Carlos D, Ferreira NS, Silva JF, Zanotto CZ, Zamboni DS, Garcia VD, Ventura DF, Silva JS, Tostes RC. Mitochondrial DNA Promotes NLRP3 Inflammasome Activation and Contributes to Endothelial Dysfunction and Inflammation in Type 1 Diabetes. Front Physiol 2020; 10:1557. [PMID: 32009974 PMCID: PMC6978691 DOI: 10.3389/fphys.2019.01557] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 12/11/2019] [Indexed: 12/20/2022] Open
Abstract
Background: NLRP3 inflammasome activation in response to several signals, including mitochondrial DNA (mDNA), regulates inflammatory responses by caspase-1 activation and interleukin-1β (IL-1β) release. Circulating mDNA is linked to micro and macrovascular complications in diabetes. However, a role for mDNA in endothelial dysfunction is not clear. We tested the hypothesis that mDNA contributes to diabetes-associated endothelial dysfunction and vascular inflammation via NLRP3 activation. Methods: Vascular reactivity, reactive oxygen species (ROS) generation, calcium (Ca2+) influx and caspase-1 and IL-1β activation were determined in mesenteric resistance arteries from normoglicemic and streptozotocin-induced diabetic C57BL/6 and NLRP3 knockout (Nlrp3-/- ) mice. Endothelial cells and mesenteric arteries were stimulated with mDNA from control (cmDNA) and diabetic (dmDNA) mice. Results: Diabetes reduced endothelium-dependent vasodilation and increased vascular ROS generation and caspase-1 and IL-1β activation in C57BL/6, but not in Nlrp3-/- mice. Diabetes increased pancreatic cytosolic mDNA. dmDNA decreased endothelium-dependent vasodilation. In endothelial cells, dmDNA activated NLRP3 via mitochondrial ROS and Ca2+ influx. Patients with type 1 diabetes exhibited increased circulating mDNA as well as caspase-1 and IL-1β activation. Conclusion: dmDNA activates endothelial NLRP3 inflammasome by mechanisms that involve Ca2+ influx and mitochondrial ROS generation. NLRP3 deficiency prevents diabetes-associated vascular inflammatory damage and endothelial dysfunction. Our study highlights the importance of NLRP3 inflammasome in diabetes-associated vascular dysfunction, which is key to diabetic complications.
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Affiliation(s)
- Camila A Pereira
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Daniela Carlos
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Nathanne S Ferreira
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Josiane F Silva
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Camila Z Zanotto
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Dario S Zamboni
- Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Valéria D Garcia
- Department of Experimental Psychology, Institute of Psychology, University of São Paulo, São Paulo, Brazil
| | - Dora Fix Ventura
- Department of Experimental Psychology, Institute of Psychology, University of São Paulo, São Paulo, Brazil
| | - João S Silva
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Rita C Tostes
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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Zhang Y, Wang YT, Koka S, Zhang Y, Hussain T, Li X. Simvastatin improves lysosome function via enhancing lysosome biogenesis in endothelial cells. Front Biosci (Landmark Ed) 2020; 25:283-298. [PMID: 31585890 DOI: 10.2741/4807] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Nlrp3 inflammasomes were shown to play a critical role in triggering obesity-associated early onsets of cardiovascular complications such as endothelial barrier dysfunction with endothelial hyperpermeability. Statins prevent endothelial dysfunction and decrease cardiovascular risk in patients with obesity and diabetes. However, it remains unclear whether statin treatment for obesity-induced endothelial barrier dysfunction is in part due to the blockade of Nlrp3 inflammasome signaling axis. The results showed that simvastatin, a clinically and widely used statin, prevented free fatty acid-induced endothelial hyperpermeability and disruption of ZO-1 and VE-cadherin junctions in mouse microvascular endothelial cells (MVECs). This protective effect of simvastatin was largely due to improved lysosome function that attenuated lysosome injury-mediated Nlrp3 inflammasome activation and subsequent release of high mobility group box protein-1 (HMGB1). Mechanistically, simvastatin induces autophagy that promotes removal of damaged lysosomes and also promotes lysosome regeneration that preserves lysosome function. Collectively, simvastatin treatment improves lysosome function via enhancing lysosome biogenesis and its autophagic turnover, which may be an important mechanism to suppress Nlrp3 inflammasome activation and prevents endothelial hyperpermeability in obesity.
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Affiliation(s)
- Youzhi Zhang
- School of Pharmacy, Hubei University of Science and Technology, Xianning, China
| | - Yun-Ting Wang
- Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204
| | - Saisudha Koka
- Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204
| | - Yang Zhang
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298
| | - Tahir Hussain
- Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204
| | - Xiang Li
- Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204,
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Nagoor Meeran MF, Azimullah S, Laham F, Tariq S, Goyal SN, Adeghate E, Ojha S. α-Bisabolol protects against β-adrenergic agonist-induced myocardial infarction in rats by attenuating inflammation, lysosomal dysfunction, NLRP3 inflammasome activation and modulating autophagic flux. Food Funct 2020; 11:965-976. [DOI: 10.1039/c9fo00530g] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Emerging evidence demonstrates that NLRP3 inflammasome activation, lysosomal dysfunction, and impaired autophagic flux play a crucial role in the pathophysiology of myocardial infarction (MI).
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Affiliation(s)
- M. F. Nagoor Meeran
- Department of Pharmacology and Therapeutics
- College of Medicine and Health Sciences
- UAE University
- Al Ain
- United Arab Emirates
| | - Sheikh Azimullah
- Department of Pharmacology and Therapeutics
- College of Medicine and Health Sciences
- UAE University
- Al Ain
- United Arab Emirates
| | - Farah Laham
- Department of Pharmacology and Therapeutics
- College of Medicine and Health Sciences
- UAE University
- Al Ain
- United Arab Emirates
| | - Saeed Tariq
- Department of Anatomy
- College of Medicine and Health Sciences
- UAE University
- Al Ain
- United Arab Emirates
| | | | - Ernest Adeghate
- Department of Anatomy
- College of Medicine and Health Sciences
- UAE University
- Al Ain
- United Arab Emirates
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics
- College of Medicine and Health Sciences
- UAE University
- Al Ain
- United Arab Emirates
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Demirkaya E, Arici ZS, Romano M, Berard RA, Aksentijevich I. Current State of Precision Medicine in Primary Systemic Vasculitides. Front Immunol 2019; 10:2813. [PMID: 31921111 PMCID: PMC6927998 DOI: 10.3389/fimmu.2019.02813] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 11/15/2019] [Indexed: 12/12/2022] Open
Abstract
Precision medicine (PM) is an emerging data-driven health care approach that integrates phenotypic, genomic, epigenetic, and environmental factors unique to an individual. The goal of PM is to facilitate diagnosis, predict effective therapy, and avoid adverse reactions specific for each patient. The forefront of PM is in oncology; nonetheless, it is developing in other fields of medicine, including rheumatology. Recent studies on elucidating the genetic architecture of polygenic and monogenic rheumatological diseases have made PM possible by enabling physicians to customize medical treatment through the incorporation of clinical features and genetic data. For complex inflammatory disorders, the prevailing paradigm is that disease susceptibility is due to additive effects of common reduced-penetrance gene variants and environmental factors. Efforts have been made to calculate cumulative genetic risk score (GRS) and to relate specific susceptibility alleles for use of target therapies. The discovery of rare patients with single-gene high-penetrance mutations informed our understanding of pathways driving systemic inflammation. Here, we review the advances in practicing PM in patients with primary systemic vasculitides (PSVs). We summarize recent genetic studies and discuss current knowledge on the contribution of epigenetic factors and extracellular vesicles (EVs) in disease progression and treatment response. Implementation of PM in PSVs is a developing field that will require analysis of a large cohort of patients to validate data from genomics, transcriptomics, metabolomics, proteomics, and epigenomics studies for accurate disease profiling. This multi-omics approach to study disease pathogeneses should ultimately provide a powerful tool for stratification of patients to receive tailored optimal therapies and for monitoring their disease activity.
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Affiliation(s)
- Erkan Demirkaya
- Division of Paediatric Rheumatology, Department of Paediatrics, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada
| | - Zehra Serap Arici
- Department of Paediatric Rheumatology, Sanliurfa Training and Research Hospital, Sanliurfa, Turkey
| | - Micol Romano
- Division of Paediatric Rheumatology, Department of Paediatrics, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada.,Department of Pediatric Rheumatology, Istituto Ortopedico Gaetano Pini, Milan, Italy
| | - Roberta Audrey Berard
- Division of Paediatric Rheumatology, Department of Paediatrics, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada
| | - Ivona Aksentijevich
- Inflammatory Disease Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, United States
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Zhang Y, Chen Y, Zhang Y, Li PL, Li X. Contribution of cathepsin B-dependent Nlrp3 inflammasome activation to nicotine-induced endothelial barrier dysfunction. Eur J Pharmacol 2019; 865:172795. [PMID: 31733211 PMCID: PMC6925381 DOI: 10.1016/j.ejphar.2019.172795] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 11/04/2019] [Accepted: 11/12/2019] [Indexed: 12/22/2022]
Abstract
Recent studies indicate that endothelial Nlrp3 inflammasome is critically involved in the development of cardiovascular complications. However, it remains unknown whether endothelial inflammasome is involved in endothelial barrier dysfunction associated with smoking. This study aims to investigate the role of endothelial Nlrp3 inflammasome in nicotine-induced disruption of inter-endothelial tight junctions and consequent endothelial barrier dysfunction. The confocal microscopic analysis demonstrated that mice treated with nicotine exhibited disrupted inter-endothelial tight junctions as shown by decreased ZO-1 and ZO-2 expression in the coronary arterial endothelium, whereas the decreases in ZO-1/2 were prevented by Nlrp3 gene deficiency. In cultured endothelial cells, nicotine caused Nlrp3 inflammasome complex formation and enhances the inflammasome activity as shown by increased cleavage of pro-caspase-1, and interleukin-1β (IL-1β) production. Further, nicotine disrupted tight junction and increased permeability in an endothelial cell monolayer, and this nicotine-induced effect was prevented by silencing of Nlrp3 gene, inhibition of caspase-1, or blockade of high mobility group box 1 (HMGB1). Nicotine increased endothelial cell lysosomal membrane permeability and triggered the lysosomal release of cathepsin B, whereas these events were prevented by pretreating cells with a lysosome stabilizing agent, dexamethasone. Collectively, our data suggest that nicotine enhances cathepsin B-dependent Nlrp3 inflammasome activation and the consequent production of a novel permeability factor HMGB1, which causes disruption of inter-endothelial tight junctions leading to endothelial hyperpermeability. Instigation of endothelial inflammasomes may serve as an important pathogenic mechanism contributing to the early onset of vasculopathy associated with smoking.
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Affiliation(s)
- Yang Zhang
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA; Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, 77204, USA
| | - Yang Chen
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Youzhi Zhang
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA; School of Pharmacy, Hubei University of Science and Technology, Xianning, China
| | - Pin-Lan Li
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Xiang Li
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA; Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, 77204, USA.
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Lian DW, Xu YF, Deng QH, Lin XM, Huang B, Xian SX, Huang P. Effect of patchouli alcohol on macrophage mediated Helicobacter pylori digestion based on intracellular urease inhibition. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 65:153097. [PMID: 31568921 DOI: 10.1016/j.phymed.2019.153097] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/18/2019] [Accepted: 09/24/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Helicobacter pylori infects almost half of the world population and is listed as a type I carcinoma factor since 1994. Pogostemon cablin (Blanco) Benth. (Labiatae) has been used to treat gastro-intestinal diseases for thousands of years in many east Asian countries, and the key ingredient, patchouli alcohol (PA), has been observed to exert anti-H. pylori and anti-urease activities. PURPOSE We investigated the effect of PA on H. pylori urease and its subsequent influence on macrophage phagosome maturation and function. METHODS In H. pylori experiment, the berthelot method and pH shock assay were adopted to evaluate the effect of PA on extracellular and intracellular H. pylori urease. And then, Q-PCR and Western blot were carried out to analyze the alterations in the expression of urease-related genes and proteins after PA treatment. In the H. pylori and macrophage cell (RAW264.7) co-culture experiment, the effects of PA on H. pylori-induced phagocytosis and intracellular killing of RAW264.7 were investigated using gentamycin protection assay, and the underlying mechanism was explored by immunofluorescence. RESULTS PA at 25 and 50 μM inhibited intracellular H. pylori urease activity but not isolated urease by down-regulating the gene expression levels of ureB, ureE, ureI and nixA and reducing the protein expression level of UreB, thereby inhibiting the acid resistance of H. pylori. PA also recovered the function of macrophage bacterial digestion, and prior treatment with ammonium chloride inhibited the efficacy of PA. CONCLUSION PA suppressed intracellular H. pylori urease function and maturation, which increased macrophage digestion ability.
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Affiliation(s)
- D W Lian
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, PR China; Lingnan Medical Research Center, Key Laboratory of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, PR China; Postdoctoral Research Station of Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Y F Xu
- Shenzhen Traditional Chinese Medicine Hospital, The fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, 518033, PR China; Postdoctoral Research Station of Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Q H Deng
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - X M Lin
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China
| | - B Huang
- Shenzhen Traditional Chinese Medicine Hospital, The fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, 518033, PR China
| | - S X Xian
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, PR China; Lingnan Medical Research Center, Key Laboratory of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, PR China.
| | - P Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, PR China.
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Li XX, Ling SK, Hu MY, Ma Y, Li Y, Huang PL. Protective effects of acarbose against vascular endothelial dysfunction through inhibiting Nox4/NLRP3 inflammasome pathway in diabetic rats. Free Radic Biol Med 2019; 145:175-186. [PMID: 31541678 DOI: 10.1016/j.freeradbiomed.2019.09.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/01/2019] [Accepted: 09/17/2019] [Indexed: 11/16/2022]
Abstract
The cardiovascular efficacy of glucose-lowering drugs is needed due to the cardiovascular complication in type 2 diabetes mellitus (T2DM). Acarbose is an α-glucosidase inhibitor that suppresses postprandial hyperglycemia, however, the cardiovascular protection of acarbose has still remained controversial. NLRP3 inflammasome activation mediated tight junction disruption, a hallmark event of endothelial barrier dysfunction leading to endothelial hyperpermeability in diabetes. Given the anti-inflammatory property of acarbose, it was investigated that acarbose protected against vascular endothelial barrier dysfunction through inhibiting NLRP3 inflammasome in vascular endothelial cells in T2DM rats. The rat aortic endothelial cells (RAECs) were incubated with high glucose (HG, 30 mM) for 24 h in vitro. It was found that HG significantly induced the formation and activation of NLRP3 inflammasome, which was markedly blocked by acarbose treatment. Furthermore, acarbose blocked the Nox4-dependent superoxide (O2.-) generation, which regulated NLRP3 inflammasome in RAECs. Importantly, we found that acarbose remarkably enhanced the junction protein expression of ZO-1 and VE-Cadherin and consequently abolished vascular hyperpermeability, which was associated with inhibiting NLRP3 inflammasome in RAECs. In vivo, acarbose intervention relieved vascular leakage in the heart of diabetic rats injected with Evans blue dye and the vasodilatory response to acetylcholine, which was accompanied with the restoration of ZO-1, VE-Cadherin, Nox4 and NLRP3 inflammasome in the aortal endothelium of diabetic rats. Taken together, our data indicated that acarbose ameliorated endothelial barrier dysfunction by directly inhibiting NLRP3 inflammasome which was dependent on inhibiting Nox4 oxidase-dependent O2.- production. These properties might carry a potential significance for acarbose in cardiovascular protection in diabetic patients.
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Affiliation(s)
- Xiao-Xue Li
- Department of Pathology and Pathophysiology, Southeast University School of Medicine, Nanjing, 210009, China
| | - Sun-Kai Ling
- Department of Pathology and Pathophysiology, Southeast University School of Medicine, Nanjing, 210009, China
| | - Ming-Yue Hu
- Department of Pathology and Pathophysiology, Southeast University School of Medicine, Nanjing, 210009, China
| | - Yu Ma
- Department of Pathology and Pathophysiology, Southeast University School of Medicine, Nanjing, 210009, China
| | - Yuan Li
- Department of Pathology and Pathophysiology, Southeast University School of Medicine, Nanjing, 210009, China
| | - Pei-Lin Huang
- Department of Pathology and Pathophysiology, Southeast University School of Medicine, Nanjing, 210009, China.
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Yuan X, Bhat OM, Lohner H, Zhang Y, Li PL. Endothelial acid ceramidase in exosome-mediated release of NLRP3 inflammasome products during hyperglycemia: Evidence from endothelium-specific deletion of Asah1 gene. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:158532. [PMID: 31647995 DOI: 10.1016/j.bbalip.2019.158532] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/31/2019] [Accepted: 09/13/2019] [Indexed: 12/26/2022]
Abstract
Exosomes have been demonstrated to be one of the mechanisms mediating the release of intracellular signaling molecules to conduct cell-to-cell communication. However, it remains unknown whether and how exosomes mediate the release of NOD-like receptor pyrin domain 3 (NLRP3) inflammasome products such as interleukin-1 beta (IL-1β) from endothelial cells. The present study hypothesized that lysosomal acid ceramidase (AC) determines the fate of multivesicular bodies (MVBs) to control the exosome-mediated release of NLRP3 inflammasome products during hyperglycemia. Using a streptozotocin (STZ)-induced diabetes mouse model, we found that endothelium-specific AC gene knockout mice (Asah1fl/fl/ECcre) significantly enhanced the formation and activation of NLRP3 inflammasomes in coronary arterial ECs (CECs). These mice also had increased thickening of the coronary arterial wall and reduced expression of tight junction protein compared to wild-type (WT/WT) littermates. We also observed the expression of exosome markers such as CD63 and alkaline phosphatase (ALP) was augmented in STZ-treated Asah1fl/fl/ECcre mice compared to WT/WT mice, which was accompanied by an increased IL-1β release of exosomes. In the primary cultures of CECs, we demonstrated that AC deficiency markedly enhanced the formation and activation of NLRP3 inflammasomes, but significantly down-regulated tight junction proteins when these cells were exposed to high levels of glucose. The CECs from Asah1fl/fl/ECcre mice had decreased MVB-lysosome interaction and increased IL-1β-containing exosome release in response to high glucose stimulation. Together, these results suggest that AC importantly controls exosome-mediated release of NLRP3 inflammasome products in CECs, which is enhanced by AC deficiency leading to aggravated arterial inflammatory response during hyperglycemia.
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Affiliation(s)
- Xinxu Yuan
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA
| | - Owais M Bhat
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA
| | - Hannah Lohner
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA
| | - Yang Zhang
- Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA
| | - Pin-Lan Li
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA.
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Endothelial cell pyroptosis plays an important role in Kawasaki disease via HMGB1/RAGE/cathespin B signaling pathway and NLRP3 inflammasome activation. Cell Death Dis 2019; 10:778. [PMID: 31611559 PMCID: PMC6791856 DOI: 10.1038/s41419-019-2021-3] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/18/2019] [Accepted: 09/25/2019] [Indexed: 02/08/2023]
Abstract
Kawasaki disease (KD) is the most common cause of pediatric cardiac disease in developed countries, and can lead to permanent coronary artery damage and long term sequelae such as coronary artery aneurysms. Given the prevalence and severity of KD, further research is warranted on its pathophysiology. It is known that endothelial cell damage and inflammation are two essential processes resulting in the coronary endothelial dysfunction in KD. However, detailed mechanisms are largely unknown. In this study, we investigated the role of pyroptosis in the setting of KD, and hypothesized that pyroptosis may play a central role in its pathophysiology. In vivo experiments of patients with KD demonstrated that serum levels of pyroptosis-related proteins, including ASC, caspase-1, IL-1β, IL-18, GSDMD and lactic dehydrogenase (LDH), were significantly increased in KD compared with healthy controls (HCs). Moreover, western blot analysis showed that the expression of GSDMD and mature IL-1β was notably elevated in KD sera. In vitro, exposure of human umbilical vein endothelial cells (HUVECs) to KD sera-treated THP1 cells resulted in the activation of NLRP3 inflammasome and subsequent pyroptosis induction, as evidenced by elevated expression of caspase-1, GSDMD, cleaved p30 form of GSDMD, IL-1β and IL-18, and increased LDH release and TUNEL and propidium iodide (PI)-positive cells. Furthermore, our results showed that NLRP3-dependent endothelial cell pyroptosis was activated by HMGB1/RAGE/cathepsin B signaling. These findings were also recapitulated in a mouse model of KD induced by Candida albicans cell wall extracts (CAWS). Together, our findings suggest that endothelial cell pyroptosis may play a significant role in coronary endothelial damage in KD, providing novel evidence that further elucidates its pathophysiology.
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Liu LP, Yuan YH, He XH, Chen M, Peng DX, Xu W, Xia XH, Cao YD, Wang S, Zhu QL. [Expression of Nod-like receptor protein 3 inflammasome in peripheral blood mononuclear cells of children with Kawasaki disease in the acute stage]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2019; 21:992-997. [PMID: 31642433 PMCID: PMC7389727 DOI: 10.7499/j.issn.1008-8830.2019.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 08/01/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To study the association of Nod-like receptor protein 3 (NLRP3) inflammasome with inflammatory response in the acute stage and coronary artery lesion (CAL) in children with Kawasaki disease (KD). METHODS A total of 42 children with KD who were hospitalized from January to October 2017 were enrolled as the KD group, among whom 9 had CAL (CAL group) and 33 had no CAL (NCAL group). Fifteen age- and gender-matched children with pneumonia and pyrexia were enrolled as the pneumonia-pyrexia group. Fifteen healthy children were enrolled as the healthy control group. Real-time PCR was used to measure the mRNA expression of NLRP3 inflammasome (NLRP3, ASC and caspase-1) in peripheral blood mononuclear cells. The Spearman rank correlation test was used to investigate the correlation of NLRP3 mRNA expression with serum levels of C-reactive protein, erythrocyte sedimentation rate, interleukin-6, interleukin-1β, procalcitonin, albumin and prealbumin. RESULTS The KD group had significantly higher mRNA expression of NLRP3, ASC and caspase-1 in the acute stage than the pneumonia-pyrexia and healthy control groups (P<0.05). The CAL group had significantly higher mRNA expression of NLRP3 than the NCAL group (P<0.05). NLRP3 mRNA expression was correlated with C-reactive protein, interleukin-6, interleukin-1β, and prealbumin levels in children with KD in the acute stage (rs=0.449, 0.376, 0.427, and -0.416 respectively; P<0.05). CONCLUSIONS NLRP3 inflammasome may participate in inflammatory response in the acute stage and the development of CAL in children with KD.
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Affiliation(s)
- Li-Ping Liu
- Department of Pediatric Cardiology, Hunan People's Hospital/First Affiliated Hospital of Hunan Normal University, Changsha 410005, China.
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High Mobility Group Box 1 Mediates TMAO-Induced Endothelial Dysfunction. Int J Mol Sci 2019; 20:ijms20143570. [PMID: 31336567 PMCID: PMC6678463 DOI: 10.3390/ijms20143570] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 12/22/2022] Open
Abstract
The intestinal microbe-derived metabolite trimethylamine N-oxide (TMAO) is implicated in the pathogenesis of cardiovascular diseases (CVDs). The molecular mechanisms of how TMAO induces atherosclerosis and CVDs’ progression are still unclear. In this regard, high-mobility group box protein 1 (HMGB1), an inflammatory mediator, has been reported to disrupt cell–cell junctions, resulting in vascular endothelial hyper permeability leading to endothelial dysfunction. The present study tested whether TMAO associated endothelial dysfunction results via HMGB1 activation. Biochemical and RT-PCR analysis showed that TMAO increased the HMGB1 expression in a dose-dependent manner in endothelial cells. However, prior treatment with glycyrrhizin, an HMGB1 binder, abolished the TMAO-induced HMGB1 production in endothelial cells. Furthermore, Western blot and immunofluorescent analysis showed significant decrease in the expression of cell–cell junction proteins ZO-2, Occludin, and VE-cadherin in TMAO treated endothelial cells compared with control cells. However, prior treatment with glycyrrhizin attenuated the TMAO-induced cell–cell junction proteins’ disruption. TMAO increased toll-like receptor 4 (TLR4) expression in endothelial cells. Inhibition of TLR4 expression by TLR4 siRNA protected the endothelial cells from TMAO associated tight junction protein disruption via HMGB1. In conclusion, our results demonstrate that HMGB1 is one of the important mediators of TMAO-induced endothelial dysfunction.
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45
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Zhou X, Wu Y, Ye L, Wang Y, Zhang K, Wang L, Huang Y, Wang L, Xian S, Zhang Y, Chen Y. Aspirin alleviates endothelial gap junction dysfunction through inhibition of NLRP3 inflammasome activation in LPS-induced vascular injury. Acta Pharm Sin B 2019; 9:711-723. [PMID: 31384532 PMCID: PMC6664043 DOI: 10.1016/j.apsb.2019.02.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/04/2019] [Accepted: 01/11/2019] [Indexed: 12/22/2022] Open
Abstract
The loss of endothelial connective integrity and endothelial barrier dysfunction can lead to increased vascular injury, which is related to the activation of endothelial inflammasomes. There are evidences that low concentrations of aspirin can effectively prevent cardiovascular diseases. We hypothesized that low-dose aspirin could ameliorate endothelial injury by inhibiting the activation of NLRP3 inflammasomes and ultimately prevent cardiovascular diseases. Microvascular endothelial cells were stimulated by lipopolysaccharide (2 μg/mL) and administrated by 0.1–2 mmol/L aspirin. The wild type mice were stimulated with LPS (100 μg/kg/day), and 1 h later treated with aspirin (12.5, 62.5, or 125 mg/kg/day) and dexamethasone (0.0182 mg/kg/day) for 7 days. Plasma and heart were harvested for measurement of ELISA and immunofluorescence analyses. We found that aspirin could inhibit NLRP3 inflammasome formation and activation in vitro in dose-dependent manner and has correlation between the NLRP3 inflammasome and the ROS/TXNIP pathway. We also found that low-concentration aspirin could inhibit the formation and activation of NLRP3 inflammasome and restore the expression of the endothelial tight junction protein zonula occludens-1/2 (ZO1/2). We assume that aspirin can ameliorate the endothelial layer dysfunction by suppressing the activation of NLRP3 inflammasome.
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Affiliation(s)
- Xing Zhou
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Yanjiao Wu
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Lifeng Ye
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Yunting Wang
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Kaimin Zhang
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Lingjun Wang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510407, China
| | - Yi Huang
- Department of Stomatology, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Lei Wang
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - Shaoxiang Xian
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510407, China
| | - Yang Zhang
- Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204-5037, USA
- Corresponding author. Tel.: +1 713 743 7710.
| | - Yang Chen
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou 510000, China
- Corresponding author. Tel.: +86 20 39357276.
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Li T, Zehner M, He J, Próchnicki T, Horvath G, Latz E, Burgdorf S, Takeoka S. NLRP3 inflammasome-activating arginine-based liposomes promote antigen presentations in dendritic cells. Int J Nanomedicine 2019; 14:3503-3516. [PMID: 31190807 PMCID: PMC6526778 DOI: 10.2147/ijn.s202379] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 03/13/2019] [Indexed: 02/04/2023] Open
Abstract
Purpose: The NLRP3 inflammasome activation has been proposed as a common mechanism for some adjuvants to boost the immune system, and cationic liposomes were reported to potentially activate the NLRP3 inflammasome. Herein, we questioned whether the NLRP3 inflammasome-activating cationic liposomes could promote antigen presentation and be applied as an immune adjuvant. In addition, we aimed to investigate the structure effect of lipid on triggering these immune responses. Materials and methods: A series of structurally similar lipids, consisting of arginine (Arg) head group and varied lengths of alkyl chains or spacers in between were used to prepare cationic liposomes. Lipopolysaccharide-primed human or murine macrophages or phorbol 12-myristate 13-acetate-primed THP-1 cells were treated with these liposomes, and interleukin (IL)-1β secretion was measured to quantify the NLRP3 inflammasome activation. Lysosome rupture was examined in THP-1 cells by the fluorescence loss of acridine orange, a lysosome dye. Further, chicken ovalbumin (OVA) was loaded on the liposome surface and applied to murine bone marrow-derived dendritic cells (BMDCs), which activate OT-I and OT-II lymphocytes upon major histocompatibility complex (MHC) class I- and class II-mediated antigen presentation, respectively. OT-I and OT-II cell division and IL-2 secretion were measured to evaluate the antigen presentation efficiency. The expressions of MHC molecules and co-stimulatory molecules ie, CD80, CD86, and CD40 on BMDCs were investigated by flow cytometry. Results: All the liposomes showed size distributions of 80–200 nm and zeta potentials of around 50 mV. A3C14 liposomes, consisting of Arg-C3-Glu2C14 lipids induced the most potent lysosome rupture and NLRP3 inflammasome activation. OVA-A3C14 also exhibited the most potent MHC class I- and class II-mediated antigen presentation in BMDCs without interfering MHC and co-stimulatory molecules. Conclusion: The hydrophobic moieties of arginine-based liposomes are crucial in stimulating innate immune cells. A3C14 liposomes were non-immunogenic but strongly activated innate immune cells and promoted antigen presentation, and therefore can be applied as immune adjuvants.
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Affiliation(s)
- Tianshu Li
- Institute for Advanced Research of Biosystem Dynamics, Waseda Research Institute for Science and Engineering, Waseda University, Tokyo, Japan
| | - Matthias Zehner
- Molecular Immunology and Cell Biology, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Jieyan He
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Tomasz Próchnicki
- Institute of Innate Immunity, Biomedical Center, University Hospitals, University of Bonn, Bonn, Germany
| | - Gabor Horvath
- Institute of Innate Immunity, Biomedical Center, University Hospitals, University of Bonn, Bonn, Germany
| | - Eicke Latz
- Institute of Innate Immunity, Biomedical Center, University Hospitals, University of Bonn, Bonn, Germany
| | - Sven Burgdorf
- Molecular Immunology and Cell Biology, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Shinji Takeoka
- Institute for Advanced Research of Biosystem Dynamics, Waseda Research Institute for Science and Engineering, Waseda University, Tokyo, Japan.,Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
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Lian D, Yuan H, Yin X, Wu Y, He R, Huang Y, Chen Y. Puerarin inhibits hyperglycemia-induced inter-endothelial junction through suppressing endothelial Nlrp3 inflammasome activation via ROS-dependent oxidative pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 55:310-319. [PMID: 30385134 DOI: 10.1016/j.phymed.2018.10.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 10/04/2018] [Accepted: 10/09/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Recent studies indicate that vascular complications are closely related to diabetes mellitus; in particular, inflammatory-mediated endothelial dysfunction plays a crucial role in diabetes-induced cardiovascular diseases. Therefore, exploring effective methods to suppress endothelial dysfunction via inhibition of inflammatory responses is imperative. Puerarin (Pu), a flavonoid common in Pueraria, has been widely and successfully used to treat cardiovascular diseases in China for many years. However, information on its protective properties in hyperglycemia-induced vascular complications is insufficient. Hypothesis/Purpose: In this study, we investigate the protective effects of puerarin against high glucose-induced endothelial dysfunction and the underlying mechanism of the flavonoid. METHODS we investigated the protective effects of Pu against hyperglycemia-induced inter-endothelial junction by permeability and transendothelial electrical resistance (TEER) assay. In addition, changes in the Nlrp3 inflammasome activation via reactive oxygen species (ROS)-dependent oxidative pathway were investigated using western blot, immunofluorescence microscopy analyses and flow cytometry. ROS scavenger and Nlrp3 gene silencing were used to determine the roles of the ROS-Nlrp3 pathway involved in the molecular mechanism of Pu. RESULTS Our findings demonstrate that puerarin inhibits high glucose-induced Nlrp3 inflammasome formation and activation, as shown by fluorescence confocal microscopy and Western blot. Puerarin decreases Nlrp3 protein, which is a critical factor necessary to form an inflammasome complex. We demonstrate that puerarin exerts anti-oxidation and ROS scavenged effects, similar to apocynin (APO). Interestingly, thioredoxin-interacting protein (TXNIP) protein and TXNIP binding to Nlrp3 markedly decreased with puerarin treatment. Together with these changes, puerarin could decrease high mobility group box 1 (HMGB1) release from mouse vascular endothelial cell (mMVECs). We also demonstrate the decreased expression of the tight junction proteins ZO-1/ZO-2, which are related to endothelial permeability after stimulation by high glucose in endothelial cells. Puerarin could recover the gap junction protein and decrease monolayer cell permeability in endothelial cells. In conclusion, we reveal a new protection mechanism of puerarin that inhibits Nlrp3 inflammasome activation and decreases subsequent caspase-1 activation, triggering the release of HMGB1 by reducing ROS generation. CONCLUSIONS Our findings indicate that puerarin exhibits immense potential and specific therapeutic value in hyperglycemia-related cardiovascular disease and the development of innovative drugs.
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Affiliation(s)
- Dawei Lian
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, No. 232 Waihuan Dong Rd., Panyu District, Guangzhou Higher Education Mega Center, Guangzhou 510000, China
| | - Huiqi Yuan
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, No. 232 Waihuan Dong Rd., Panyu District, Guangzhou Higher Education Mega Center, Guangzhou 510000, China
| | - Xiongzhang Yin
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, Wuhan 430030, China
| | - Yanjiao Wu
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, No. 232 Waihuan Dong Rd., Panyu District, Guangzhou Higher Education Mega Center, Guangzhou 510000, China
| | - Rongrong He
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, No. 601W. Huangpu Avenue, Guangzhou 510630, China
| | - Yi Huang
- Department of Stomatology, The First Affiliated Hospital, The school of Dental Medicine, Jinan University, No. 613W. Huangpu Avenue, Guangzhou 510630, China
| | - Yang Chen
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, No. 232 Waihuan Dong Rd., Panyu District, Guangzhou Higher Education Mega Center, Guangzhou 510000, China.
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Campden RI, Zhang Y. The role of lysosomal cysteine cathepsins in NLRP3 inflammasome activation. Arch Biochem Biophys 2019; 670:32-42. [PMID: 30807742 DOI: 10.1016/j.abb.2019.02.015] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/22/2019] [Accepted: 02/19/2019] [Indexed: 12/17/2022]
Abstract
Lysosomal cysteine cathepsins are a family of proteases that are involved in a myriad of cellular processes from proteolytic degradation in the lysosome to bone resorption. These proteins mature following the cleavage of a pro-domain in the lysosome to become either exo- or endo-peptidases. The cathepsins B, C, L, S and Z have been implicated in NLRP3 inflammasome activation following their activation with ATP, monosodium urate, silica crystals, or bacterial components, among others. These five cathepsins have both compensatory and independent functions in NLRP3 inflammasome activation. There is much evidence in the literature to support the release of cathepsin B following lysosomal membrane degradation which leads to NLRP3 inflammasome activation. This is likely due to a hitherto unidentified role of this protein in the cytoplasm, although other interactions with autophagy proteins and within lysosomes have been proposed. Cathepsin C is involved in the processing of neutrophil IL-1β through processing of upstream proteases. Cathepsin Z is non-redundantly required for NLRP3 inflammasome activation following nigericin, ATP and monosodium urate activation. Lysosomal cysteine cathepsins are members of a diverse and complementary family, and likely share both overlapping and independent functions in NLRP3 inflammasome activation.
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Affiliation(s)
- Rhiannon I Campden
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Calgary, Calgary, AB, Canada.
| | - Yifei Zhang
- Institute for Immunology, Department of Basic Medical Sciences, School of Medicine, Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing, 100084, China
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49
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Chen Y, Sun H, Bai Y, Zhi F. Gut dysbiosis-derived exosomes trigger hepatic steatosis by transiting HMGB1 from intestinal to liver in mice. Biochem Biophys Res Commun 2019; 509:767-772. [PMID: 30616887 DOI: 10.1016/j.bbrc.2018.12.180] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 12/29/2018] [Indexed: 01/06/2023]
Abstract
In the past decade, research on the biology of the gut-liver axis has assisted in understanding the basic biology of nonalcoholic fatty liver disease (NAFLD). High mobility group box 1 (HMGB1) protein, in its role as a crucial injury-related molecule, displays a substantial correlation with the degree of liver steatosis. However, its underlying molecular mechanism remains unclear. In the current study of ASC-/- mice on a high-fat diet (HFD), we observed disorder of the gut microbiota along with abnormal increases in the Firmicutes:Bacteroidetes ratio and in Streptomyces, both of which were detected by 16S rDNA sequencing. Therefore, we investigated the intestinal mucosal injury and analyzed the NAFLD activity score and found that the ASC-/--HFD group was more severely impaired than the others. Moreover, HMGB1 increased significantly in the intestinal tissue and was co-localized with an exosomal marker. We revealed that HMGB1 was significantly elevated in the exosomes of the ASC-/--HFD group. It transported by exosomes from the intestine to the liver, thereby triggering hepatic steatosis when dysbiosis. In conclusion, the findings indicated that HMGB1 plays a crucial role in the gut-liver axis mechanism.
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Affiliation(s)
- Yu Chen
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Department of Gastroenterology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510080, China
| | - Huanhuan Sun
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, 710061, China
| | - Yang Bai
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Fachao Zhi
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China.
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Esposito S, Polinori I, Rigante D. The Gut Microbiota-Host Partnership as a Potential Driver of Kawasaki Syndrome. Front Pediatr 2019; 7:124. [PMID: 31024869 PMCID: PMC6460951 DOI: 10.3389/fped.2019.00124] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 03/15/2019] [Indexed: 12/12/2022] Open
Abstract
Kawasaki syndrome (KS) is a necrotizing vasculitis of small- and medium-sized vessels mostly affecting children under 5 years of age; a host of clinical and epidemiological data supports the notion that KS might result from an infectious disease. However, many efforts have failed to identify a potentially universal trigger of KS. The contribution of the intestinal microbial community-called the "microbiota"-to KS has been evaluated by an increasing number of studies, though limited to small cohorts of patients. Differences in the microbiota composition were found in children with KS, both its acute and non-acute phase, with abnormal colonization by Streptococcus species in the intestinal tract and a wider presence of Gram-positive cocci in jejunal biopsies. In particular, a higher number of Gram-positive cocci (of the genera Streptococcus and Staphylococcus), Eubacterium, Peptostreptococcus, and HSP60-producing Gram-negative microbes have been found in the stools of KS children, and their effects on the antigenic repertoire of specific T cells and Vβ2 T cell expansion have been assessed. Conversely, Lactobacilli were lacking in most children with KS compared with other febrile illnesses and healthy controls. All studies available to date have confirmed that an imbalance in the gut microbiota might indirectly interfere with the normal function of innate and adaptive immunity, and that variable microbiota interactions with environmental factors, mainly infectious agents, might selectively drive the development of KS in genetically susceptible children. Further investigations of the intestinal microflora in larger cohorts of KS patients will provide clues to disentangle the pathogenesis of this disease and probably indicate disease-modifying agents or more rational KS-specific therapies.
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Affiliation(s)
- Susanna Esposito
- Pediatric Clinic, Department of Surgical and Biomedical Sciences, Università degli Studi di Perugia, Perugia, Italy
| | - Ilaria Polinori
- Pediatric Clinic, Department of Surgical and Biomedical Sciences, Università degli Studi di Perugia, Perugia, Italy
| | - Donato Rigante
- Institute of Pediatrics, IRCCS, Rome, Italy.,Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy.,Università Cattolica Sacro Cuore, Rome, Italy
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