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Pang QQ, Zang CX, Li T, Zeng XC, Liu LX, Zhang D, Yao XS, Yu Y. Neuroprotective effect of GJ-4 against cognitive impairments in vascular dementia by improving white matter damage. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 132:155877. [PMID: 39032283 DOI: 10.1016/j.phymed.2024.155877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 07/03/2024] [Accepted: 07/12/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND White matter lesions (WMLs) are increasingly linked to the pathological process of chronic vascular dementia (VaD). An effective crocins fraction extracted from Gardenia Fructus, GJ-4, has been shown to improve cognitive function in several Alzheimer's disease models and VaD models. OBJECTIVES To explore the potential mechanisms of GJ-4 on WMLs in a chronic VaD mouse model. METHODS The chronic VaD mouse model was established, and WMLs were characterized by cerebral blood flow (CBF), behavioral tests, LFB staining, and immunohistochemistry. The anti-oxidative effect of GJ-4 was validated by examining biochemical parameters (SOD, MDA, and GSH) and the Keap1-Nrf2/HO-1 pathway. The impact of GJ-4 on lipid metabolism in WM was further investigated through lipidomic analysis. RESULTS GJ-4 significantly attenuated cognitive impairments and improved the CBF of BCAS (bilateral common carotid artery stenosis)-induced mice. Mechanism research showed that GJ-4 could enhance cognition by promoting the repair of WMLs by inhibiting oxidative stress. Furthermore, GJ-4 treatment significantly reduced chronic cerebral hypoperfusion (CCH)-induced WMLs via improving lipid metabolism disorder in the WM. CONCLUSION This research has provided valuable insights into the significance of WMLs in CCH-induced VaD and underscored the potential of GJ-4 as a therapeutic agent for improving cognitive function by targeting WMLs. These findings suggest that GJ-4 is a promising candidate for the treatment of VaD.
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Affiliation(s)
- Qian-Qian Pang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China; University of Michigan Life Sciences Institute, Ann Arbor, MI 48109-2216, United States
| | - Cai-Xia Zang
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Ting Li
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China
| | - Xiao-Chun Zeng
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China
| | - Ling-Xian Liu
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China
| | - Dan Zhang
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China.
| | - Xin-Sheng Yao
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China.
| | - Yang Yu
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China.
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Fan J, Zhu T, Tian X, Liu S, Zhang SL. Exploration of ferroptosis and necroptosis-related genes and potential molecular mechanisms in psoriasis and atherosclerosis. Front Immunol 2024; 15:1372303. [PMID: 39072329 PMCID: PMC11272566 DOI: 10.3389/fimmu.2024.1372303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 06/21/2024] [Indexed: 07/30/2024] Open
Abstract
Objective Ferroptosis and necroptosis are two recently identified forms of non-apoptotic cell death. Their dysregulation plays a critical role in the development and progression of Psoriasis (PsD) and Atherosclerosis (AS). This study explores shared Ferroptosis and necroptosis-related genes and elucidates their molecular mechanisms in PsD and AS through the analysis of public databases. Methods Data sets for PsD (GSE30999) and AS (GSE28829) were retrieved from the GEO database. Differential gene expression (DEG) and weighted gene co-expression network analysis (WGCNA) were performed. Machine learning algorithms identified candidate biomarkers, whose diagnostic values were assessed using Receiver Operating Characteristic (ROC) curve analysis. Additionally, the expression levels of these biomarkers in cell models of AS and PsD were quantitatively measured using Western Blot (WB) and real-time quantitative PCR (RT-qPCR). Furthermore, CIBERSORT evaluated immune cell infiltration in PsD and AS tissues, highlighting the correlation between characteristic genes and immune cells. Predictive analysis for candidate drugs targeting characteristic genes was conducted using the DGIdb database, and an lncRNA-miRNA-mRNA network related to these genes was constructed. Results We identified 44 differentially expressed ferroptosis-related genes (DE-FRGs) and 30 differentially expressed necroptosis-related genes (DE-NRGs). GO and KEGG enrichment analyses revealed significant enrichment of these genes in immune-related and inflammatory pathways, especially in NOD-like receptor and TNF signaling pathways. Two ferroptosis-related genes (NAMPT, ZFP36) and eight necroptosis-related genes (C7, CARD6, CASP1, CTSD, HMOX1, NOD2, PYCARD, TNFRSF21) showed high sensitivity and specificity in ROC curve analysis. These findings were corroborated in external validation datasets and cell models. Immune infiltration analysis revealed increased levels of T cells gamma delta, Macrophages M0, and Macrophages M2 in PsD and AS samples. Additionally, we identified 43 drugs targeting 5 characteristic genes. Notably, the XIST-miR-93-5p-ZFP36/HMOX1 and NEAT1-miR-93-5p-ZFP36/HMOX1 pathways have been identified as promising RNA regulatory pathways in AS and PsD. Conclusion The two ferroptosis-related genes (NAMPT, ZFP36) and eight necroptosis-related genes (C7, CARD6, CASP1, CTSD, HMOX1, NOD2, PYCARD, TNFRSF21) are potential key biomarkers for PsD and AS. These genes significantly influence the pathogenesis of PsD and AS by modulating macrophage activity, participating in immune regulation, and mediating inflammatory responses.
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Affiliation(s)
- Jilin Fan
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Tingting Zhu
- Department of Neurosurgery Ward 5, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Xiaoling Tian
- Department of Neurosurgery Ward 5, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Sijia Liu
- Cardiovascular Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Shi-Liang Zhang
- Cardiovascular Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
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Haybar H, Sarbazjoda E, Purrahman D, Mahmoudian-Sani MR, Saki N. The prognostic potential of long noncoding RNA XIST in cardiovascular diseases: a review. Per Med 2024; 21:257-269. [PMID: 38889283 DOI: 10.1080/17410541.2024.2360380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 05/23/2024] [Indexed: 06/20/2024]
Abstract
There is a significant mortality rate associated with cardiovascular disease despite advances in treatment. long Non-coding RNAs (lncRNAs) play a critical role in many biological processes and their dysregulation is associated with a wide range of diseases in which their downstream pathways are disrupted. A lncRNA X-inactive specific transcript (XIST) is well known as a factor that regulates the physiological process of chromosome dosage compensation for females. According to recent studies, lncRNA XIST is involved in a variety of cellular processes, including apoptosis, proliferation, invasion, metastasis, oxidative stress and inflammation, through molecular networks with microRNAs and their downstream targets in neoplastic and non-neoplastic diseases. Because these cellular processes play a role in the pathogenesis of cardiovascular diseases, we aim to investigate the role that lncRNA XIST plays in this process. Additionally, we wish to determine whether it is a prognostic factor or a potential therapeutic target in these diseases.
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Affiliation(s)
- Habib Haybar
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ehsan Sarbazjoda
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz,Iran
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Daryush Purrahman
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz,Iran
| | - Mohammad Reza Mahmoudian-Sani
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz,Iran
| | - Najmaldin Saki
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz,Iran
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Kong L, Cao Y, He Y, Zhang Y. Role and molecular mechanism of NOD2 in chronic non-communicable diseases. J Mol Med (Berl) 2024; 102:787-799. [PMID: 38740600 DOI: 10.1007/s00109-024-02451-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 05/16/2024]
Abstract
Nucleotide-binding oligomerization domain containing 2 (NOD2), located in the cell cytoplasm, is a pattern recognition receptor belonging to the innate immune receptor family. It mediates the innate immune response by identifying conserved sequences in bacterial peptide glycans and plays an essential role in maintaining immune system homeostasis. Gene mutations of NOD2 lead to the development of autoimmune diseases such as Crohn's disease and Blau syndrome. Recently, NOD2 has been shown to be associated with the pathogenesis of diabetes, cardiac-cerebral diseases, and cancers. However, the function of NOD2 in these non-communicable diseases (CNCDs) is not well summarized in reviews. Our report mainly discusses the primary function and molecular mechanism of NOD2 as well as its potential clinical significance in CNCDs.
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Affiliation(s)
- Lingjun Kong
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Weiqi Road, Huaiyin District, Jinan, Shandong, People's Republic of China
| | - Yanhua Cao
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Weiqi Road, Huaiyin District, Jinan, Shandong, People's Republic of China
| | - Yanan He
- Gamma Knife Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, People's Republic of China
| | - Yahui Zhang
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Weiqi Road, Huaiyin District, Jinan, Shandong, People's Republic of China.
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Liu L, Liu Y, Zhao Y. Circular RNA circ_0008896 contributes to oxidized low-density lipoprotein-induced aortic endothelial cell injury via targeting miR-188-3p/NOD2 axis. Cell Stress Chaperones 2023; 28:275-287. [PMID: 36940068 PMCID: PMC10167080 DOI: 10.1007/s12192-023-01336-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 02/07/2023] [Accepted: 03/07/2023] [Indexed: 03/21/2023] Open
Abstract
We aimed to investigate the role and mechanism of circ_0008896 in Atherosclerosis (AS) by using oxidized low-density lipoprotein (ox-LDL)-induced human aortic endothelial cell (HAECs). Levels of genes and proteins were measured by quantitative real-time PCR and Western blot. Functional experiments, including enzyme-linked immunosorbent assay analysis, cell counting kit-8, 5-ethynyl-2'-deoxyuridine (EdU), flow cytometry, tube formation assays and the detection of reactive oxygen species (ROS), malondialdehyde (MDA) and superoxide dismutase (SOD) generation, were performed to investigate the role of circ_0008896 on ox-LDL-induced HAEC damage. Circ_0008896 was increased in AS patients and ox-LDL-stimulated HAECs. Functionally, circ_0008896 knockdown reversed ox-LDL-induced inflammatory response, oxidative stress, apoptosis as well as arrest of proliferation and angiogenesis in HAECs in vitro. Mechanistically, circ_0008896 functioned as a sponge for miR-188-3p to relieve the repression of miR-188-3p on its target NOD2. A series of rescue experiments showed that miR-188-3p inhibition attenuated the protective effects of circ_0008896 knockdown on ox-LDL-stimulated HAECs, and NOD2 overexpression abolished the beneficial action of miR-188-3p in the suppression of inflammatory response and oxidative stress, and the promotion of cell growth and angiogenesis in HAECs under ox-LDL treatment. Circ_0008896 silencing attenuates ox-LDL-induced inflammatory response, oxidative stress, and growth arrest in HAECs in vitro, adding further understanding for the pathogenesis of AS.
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Affiliation(s)
- Liping Liu
- Heart Function Examination Room, the Second Hospital of Dalian Medical University, Dalian, China
| | - Yan Liu
- Department of Cardiology, the Second Hospital of Dalian Medical University, Dalian, China
| | - Yueyan Zhao
- Department of Cardiology, the Second Hospital of Dalian Medical University, Dalian, China.
- , Dalian City, China.
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Jing L, Zheng D, Sun X, Shi Z. DBDPE upregulates NOD-like receptor signaling to induce NLRP3 inflammasome-mediated HAECs pyroptosis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 318:120882. [PMID: 36549449 DOI: 10.1016/j.envpol.2022.120882] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/06/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Decabromodiphenyl ethane (DBDPE), a typical new brominated flame retardant (BFR), is a widespread new pollutant in the environment. Several studies and our previous studies have found that DBDPE can cause aortic endothelial injury and aortic endothelial cell pyroptosis, whereas the molecular mechanism involved has not been elucidated. In this study, we exposed human aortic endothelial cells (HAECs) to 25 μmol/L of DBDPE and analyzed the gene expression profiles by Affymetrix PrimeView™ Human Gene Expression Chip. The results showed that 886 genes were differentially expressed in the DBDPE exposure group. Enrichment analyses revealed that differentially expressed genes were mainly enriched in the inflammatory response and NOD-like receptor signal pathway. Gene-gene functional interaction analyses and crossover genes and pathways analyses found that the NOD-like receptor signal pathway may be involved in regulating NLRP3 and IL-18. We found that NOD2 cannot interact with NLRP3 directly through an immunoprecipitation experiment. Thus, we construct the RIPK2 knockdown HAECs cell line to repress the NOD-like receptor signaling and further study the mechanism of DBDPE-activated NLRP3 inflammasome to induce HAECs pyroptosis. The results showed that RIPK2 knockdown could repress DBDPE-induced NOD-like receptor signaling pathway upregulation, inhibit NLRP3 inflammasome activation, and decrease HAECs pyroptosis. In addition, RIPK2 knockdown decreased the ROS generation in HAECs induced by DBDPE. And NAC pretreated HAECs inhibited DBDPE-induced NLRP3 inflammasome activation and HAECs pyroptosis. These results demonstrated that DBDPE upregulated NOD-like receptor signaling to induce ROS generation and, in turn, activated NLRP3 inflammasome, leading to HAECs pyroptosis.
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Affiliation(s)
- Li Jing
- School of Public Health and Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Dan Zheng
- School of Public Health and Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Xuejing Sun
- School of Public Health and Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Zhixiong Shi
- School of Public Health and Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
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Wang L, Wang S, Zhang Q, He C, Fu C, Wei Q. The role of the gut microbiota in health and cardiovascular diseases. MOLECULAR BIOMEDICINE 2022; 3:30. [PMID: 36219347 PMCID: PMC9554112 DOI: 10.1186/s43556-022-00091-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/05/2022] [Indexed: 11/17/2022] Open
Abstract
The gut microbiota is critical to human health, such as digesting nutrients, forming the intestinal epithelial barrier, regulating immune function, producing vitamins and hormones, and producing metabolites to interact with the host. Meanwhile, increasing evidence indicates that the gut microbiota has a strong correlation with the occurrence, progression and treatment of cardiovascular diseases (CVDs). In patients with CVDs and corresponding risk factors, the composition and ratio of gut microbiota have significant differences compared with their healthy counterparts. Therefore, gut microbiota dysbiosis, gut microbiota-generated metabolites, and the related signaling pathway may serve as explanations for some of the mechanisms about the occurrence and development of CVDs. Several studies have also demonstrated that many traditional and latest therapeutic treatments of CVDs are associated with the gut microbiota and its generated metabolites and related signaling pathways. Given that information, we summarized the latest advances in the current research regarding the effect of gut microbiota on health, the main cardiovascular risk factors, and CVDs, highlighted the roles and mechanisms of several metabolites, and introduced corresponding promising treatments for CVDs regarding the gut microbiota. Therefore, this review mainly focuses on exploring the role of gut microbiota related metabolites and their therapeutic potential in CVDs, which may eventually provide better solutions in the development of therapeutic treatment as well as the prevention of CVDs.
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Affiliation(s)
- Lu Wang
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
| | - Shiqi Wang
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
| | - Qing Zhang
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
| | - Chengqi He
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
| | - Chenying Fu
- grid.412901.f0000 0004 1770 1022National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,grid.412901.f0000 0004 1770 1022Aging and Geriatric Mechanism Laboratory, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Quan Wei
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
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Novel Scaffolds for Modulation of NOD2 Identified by Pharmacophore-Based Virtual Screening. Biomolecules 2022; 12:biom12081054. [PMID: 36008948 PMCID: PMC9405794 DOI: 10.3390/biom12081054] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 12/04/2022] Open
Abstract
Nucleotide-binding oligomerization domain-containing protein 2 (NOD2) is an innate immune pattern recognition receptor responsible for the recognition of bacterial peptidoglycan fragments. Given its central role in the formation of innate and adaptive immune responses, NOD2 represents a valuable target for modulation with agonists and antagonists. A major challenge in the discovery of novel small-molecule NOD2 modulators is the lack of a co-crystallized complex with a ligand, which has limited previous progress to ligand-based design approaches and high-throughput screening campaigns. To that end, a hybrid docking and pharmacophore modeling approach was used to identify key interactions between NOD2 ligands and residues in the putative ligand-binding site. Following docking of previously reported NOD2 ligands to a homology model of human NOD2, a structure-based pharmacophore model was created and used to virtually screen a library of commercially available compounds. Two compounds, 1 and 3, identified as hits by the pharmacophore model, exhibited NOD2 antagonist activity and are the first small-molecule NOD2 modulators identified by virtual screening to date. The newly identified NOD2 antagonist scaffolds represent valuable starting points for further optimization.
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Hu J, Dusenge MA, Ye Q, Zhao YQ, Tan L, Feng Y, Zhao J, Gao ZR, Zhang SH, Chen Y, Zhou YH, Guo Y, Feng YZ. Role of NOD2 and hepcidin in inflammatory periapical periodontitis. BMC Oral Health 2022; 22:263. [PMID: 35764993 PMCID: PMC9241313 DOI: 10.1186/s12903-022-02286-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 06/15/2022] [Indexed: 11/30/2022] Open
Abstract
The immunological response occurring during periapical inflammation includes expression of nucleotide binding oligomerization domain containing 2 and hepcidin. Nucleotide binding oligomerization domain containing 2 deficiency increases infiltration of inflammatory cells close to alveolar bone. Hepcidin has an important role in iron metabolism affecting bone metabolism.We investigated the role of nucleotide binding oligomerization domain containing 2 and hepcidin in inflammatory periapical periodontitis. Periapical periodontitis was induced in rats and confirmed by micro-computed tomography. Nucleotide binding oligomerization domain 2 and hepcidin were evaluated through immunohistochemistry. Bioinformatics analysis was undertaken usingthe Kyoto Encyclopedia of Genes and Genomes and Gene Ontology databases. Micro-computer tomography revealed alveolar bone resorption in the periapical region and furcation area of mandibular molars in rats of the periapical periodontitis group. Immunohistochemistry showed increased expressionof nucleotide binding oligomerization domain containing 2 and hepcidin around root apices in rats of the periapical periodontitis group. Bioinformatics analysis of differentially expressed genes in inflamed and non-inflamed tissues revealed enrichment in the NOD-like receptor signaling pathway. Our data suggest that nucleotide binding oligomization domain contain2 and hepcidin have important roles in periapical periodontitis severity because they can reduce alveolar bone loss.They could elicit new perspectives for development of novel strategies for periapical periodontitis treatment.
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Affiliation(s)
- Jing Hu
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Marie Aimee Dusenge
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Qin Ye
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Ya-Qiong Zhao
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Li Tan
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Yao Feng
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Jie Zhao
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Zheng-Rong Gao
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Shao-Hui Zhang
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Yun Chen
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Ying-Hui Zhou
- National Clinical Research Center for Metabolic Diseases, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Yue Guo
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
| | - Yun-Zhi Feng
- Department of Stomatology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
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Knockdown of circular RNA hsa_circ_0003204 inhibits oxidative stress and apoptosis through the miR-330-5p/Nod2 axis to ameliorate endothelial cell injury induced by low-density lipoprotein. Cent Eur J Immunol 2021; 46:140-151. [PMID: 34764783 PMCID: PMC8568026 DOI: 10.5114/ceji.2021.108174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/30/2020] [Indexed: 11/17/2022] Open
Abstract
Introduction Atherosclerosis (AS) is the leading cause of cardiovascular disease. Circular RNA hsa_circ_0003204 (hsa_circ_0003204) was elevated in oxidized low-density lipoprotein (ox-LDL)-induced human umbilical vein endothelial cells. However, the role and molecular mechanism of hsa_circ_0003204 in the AS process have not been studied. Material and methods Human primary aortic endothelial cells (HAECs) were treated with low-density lipoprotein (ox-LDL) to establish the AS model. The viability of ox-LDL-induced HAECs was assessed by counting kit-8 (CCK8) assay. Reactive oxygen species (ROS), malondialdehyde (MDA) and superoxide dismutase (SOD) levels in ox-LDL-induced HAECs supernatant were evaluated with the relevant kits. The apoptosis of ox-LDL-induced HAECs was determined via flow cytometry assay. The expression of hsa_circ_0003204, miR-330-5p, and nucleotide-binding oligomerization domain 2 (Nod2) was analyzed through quantitative real-time polymerase chain reaction (qRT-PCR). The relationship between hsa_circ_0003204 or Nod2 and miR-330-5p was verified by dual-luciferase reporter assay. Protein level of Nod2 was detected using western blot analysis. Results Hsa_circ_0003204 and Nod2 were upregulated while miR-330-5p was decreased in ox-LDL-induced HAECs. Hsa_circ_0003204 depletion restrained the oxidative stress and apoptosis of ox-LDL-induced HAECs. Notably, hsa_circ_0003204 regulated Nod2 expression via sponging miR-330-5p in HAECs. Moreover, miR-330-5p inhibition restored the constraint of the oxidative stress and apoptosis of ox-LDL-induced HAECs caused by hsa_circ_0003204 silencing. Additionally, miR-330-5p targeted Nod2 and Nod2 enhancement abolished the repressive effects of miR-330-5p overexpression on the oxidative stress and apoptosis of ox-LDL-induced HAECs. Conclusions Hsa_circ_0003204 exhaustion mitigated endothelial cell injury through suppressing the oxidative stress and apoptosis in ox-LDL-induced HAECs via the miR-330-5p/Nod2 axis.
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Kong LJ, Wang YN, Wang Z, Lv QZ. NOD2 induces VCAM-1 and ET-1 gene expression via NF-κB in human umbilical vein endothelial cells with muramyl dipeptide stimulation. Herz 2020; 46:265-271. [PMID: 33245410 DOI: 10.1007/s00059-020-04996-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 08/13/2020] [Accepted: 10/11/2020] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Endothelial dysfunction is involved in various aspects of vascular biology and different stages of cardiovascular diseases (CVDs). Nucleotide-binding oligomerization domain-containing protein (NOD) 2, a pivotal innate immune receptor for muramyl dipeptide (MDP), has been reported to be a central regulator in CVDs. Previously, we reported that NOD2 played a leading role in MDP-triggered oxidative stress in endothelial cells (ECs). However, whether NOD2 participates in the regulatory mechanism of vascular cell adhesion molecule‑1 (VCAM-1) and endothelin‑1 (ET-1) expression was not elucidated. METHODS Human umbilical vein endothelial cells (HUVECs) were stimulated with MDP for 12 h. mRNA expression of VCAM‑1 and ET‑1 was detected using real time polymerase chain reaction (PCR). Scrambled control small interfering RNA (siRNA) and NOD2 siRNA were transfected into HUVECs using Lipofectamine 2000 reagent (Invitrogen, Waltham, MA, USA). Furthermore, pyrrolidine dithiocarbamate was adopted to investigate the effect of nuclear factor κB (NF-κB) on NOD2-mediated VCAM‑1 and ET‑1 gene expression in MDP-treated HUVECs. RESULTS Data showed that MDP significantly increased VCAM‑1 and ET‑1 mRNA expression, which was dependent on NOD2. In addition, NF-κB inhibition suppressed NOD2-mediated gene expression of VCAM‑1 and ET‑1. CONCLUSION Collectively, we confirmed NOD2 aggravated VCAM‑1 and ET‑1 gene expression through NF-κB in HUVECs treated with MDP.
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Affiliation(s)
- Ling-Jun Kong
- Department of Pharmacy, Shandong Provincial Hospital, Shandong First Medical University, 250021, Jinan, Shandong, China.
| | - Ya-Nan Wang
- Department of Anesthesiology, Peking University People's Hospital, 100044, Beijing, China
| | - Zi Wang
- Department of Clinical Pharmacy, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Qian-Zhou Lv
- Department of Clinical Pharmacy, Zhongshan Hospital, Fudan University, 200032, Shanghai, China.
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12
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Genetic Deletion of NOD1 Prevents Cardiac Ca 2+ Mishandling Induced by Experimental Chronic Kidney Disease. Int J Mol Sci 2020; 21:ijms21228868. [PMID: 33238586 PMCID: PMC7700567 DOI: 10.3390/ijms21228868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/16/2020] [Accepted: 11/19/2020] [Indexed: 12/23/2022] Open
Abstract
Risk of cardiovascular disease (CVD) increases considerably as renal function declines in chronic kidney disease (CKD). Nucleotide-binding oligomerization domain-containing protein 1 (NOD1) has emerged as a novel innate immune receptor involved in both CVD and CKD. Following activation, NOD1 undergoes a conformational change that allows the activation of the receptor-interacting serine/threonine protein kinase 2 (RIP2), promoting an inflammatory response. We evaluated whether the genetic deficiency of Nod1 or Rip2 in mice could prevent cardiac Ca2+ mishandling induced by sixth nephrectomy (Nx), a model of CKD. We examined intracellular Ca2+ dynamics in cardiomyocytes from Wild-type (Wt), Nod1-/- and Rip2-/- sham-operated or nephrectomized mice. Compared with Wt cardiomyocytes, Wt-Nx cells showed an impairment in the properties and kinetics of the intracellular Ca2+ transients, a reduction in both cell shortening and sarcoplasmic reticulum Ca2+ load, together with an increase in diastolic Ca2+ leak. Cardiomyocytes from Nod1-/--Nx and Rip2-/--Nx mice showed a significant amelioration in Ca2+ mishandling without modifying the kidney impairment induced by Nx. In conclusion, Nod1 and Rip2 deficiency prevents the intracellular Ca2+ mishandling induced by experimental CKD, unveiling new innate immune targets for the development of innovative therapeutic strategies to reduce cardiac complications in patients with CKD.
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13
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Li S, Deng P, Wang M, Liu X, Jiang M, Jiang B, Yang L, Hu J. IL-1α and IL-1β promote NOD2-induced immune responses by enhancing MAPK signaling. J Transl Med 2019; 99:1321-1334. [PMID: 31019287 DOI: 10.1038/s41374-019-0252-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 02/15/2019] [Accepted: 02/26/2019] [Indexed: 01/26/2023] Open
Abstract
Both toll-like receptors (TLRs) and nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs) induce a tightly regulated inflammatory response at risk of causing tissue damage, depending on the effectiveness of ensuing negative feedback regulatory mechanisms. Cross-regulation between TLRs, NLRs, and cytokine receptors has been observed. However, the cross-regulation between interleukin-1 (IL-1) receptors and NOD2 is not completely understood. In this study, we found that IL-1α/β increased NOD2-induced inflammatory response in human monocytic THP1 cells, peripheral blood mononuclear cells (PBMCs), mouse macrophage RWA264.7 cells and spleen cells, and in an in vivo experiment. IL-1α/β pre-treatment induced the production of CXC chemokines, including growth-regulated oncogene (GRO)-α, GRO-β, and IL-8, and proinflammatory cytokines, including IL-1β, IL-6, and TNFα, which are induced by the activation of NOD2, in a dose- and time-dependent manner. However, pre-treatment with the NOD2 ligand muramyl dipeptide (MDP) did not up-regulate the expression of cytokines induced by IL-1α/β re-treatment. IL-1β treatment increased the expression of A20, which is an important inhibitor of the innate immune response. However, the overexpression of A20 failed to inhibit MDP-induced cytokine production, suggesting that A20 had no effects on the NOD2-induced immune response. In addition, IL-1α/β increased the expression of NOD2 and its downstream adaptor RIP2, and IL-1α/β pre-treatment increased MDP-induced activation of mitogen-activated protein kinases (MAPKs), including ERK, JNK, and P38, which contributed to MDP-induced cytokine production. Based on these results, IL-1α/β promote the NOD2-induced immune responses by enhancing MDP-induced activation of MAPK signaling pathways.
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Affiliation(s)
- Sushan Li
- Department of Cardiology, Changsha Central Hospital, Changsha, China.,Graduate School, University of South China, Hengyang, China.,Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Ping Deng
- Department of Cardiology, Changsha Central Hospital, Changsha, China.
| | - Manzhi Wang
- Department of Pediatrics, Changsha Central Hospital, Changsha, China
| | - Xueting Liu
- Medical Research Center, Changsha Central Hospital, Changsha, China
| | - Manli Jiang
- Medical Research Center, Changsha Central Hospital, Changsha, China
| | - Binyuan Jiang
- Medical Research Center, Changsha Central Hospital, Changsha, China
| | - Li Yang
- Tuberculosis Research Center, Changsha Central Hospital, Changsha, China
| | - Jinyue Hu
- Medical Research Center, Changsha Central Hospital, Changsha, China. .,Changsha Cancer Institute, Changsha Central Hospital, Changsha, China.
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14
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Xu X, Ma C, Duan Z, Du Y, Liu C. lncRNA ZEB1-AS1 Mediates Oxidative Low-Density Lipoprotein-Mediated Endothelial Cells Injury by Post-transcriptional Stabilization of NOD2. Front Pharmacol 2019; 10:397. [PMID: 31040785 PMCID: PMC6477043 DOI: 10.3389/fphar.2019.00397] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 03/29/2019] [Indexed: 12/19/2022] Open
Abstract
Oxidized-low density lipoprotein (ox-LDL) can induce injury of endothelial cells, causing atherosclerosis, which is an important initial event in several cardiovascular diseases. Long non-coding RNAs (lncRNAs) have emerged as regulators of diverse biological processes, but their specific biological functions and biochemical mechanisms in ox-LDL-induced endothelial cell injury have not been well investigated. Here, we describe the initial functional analysis of a poorly characterized human lncRNA ZEB1 antisense 1 (ZEB1-AS1). We found that ox-LDL treatment could induce a decreased cell viability and an increased cell apoptosis in endothelial cells, and knockdown of ZEB1-AS1 significantly reversed this effect. Mechanistically, ox-LDL treatment could sequester p53 from binding to ZEB1-AS1 promoter region, causing transcriptional activation and upregulation of ZEB1-AS1. Moreover, enhanced ZEB1-AS1 could upregulate Nucleotide-Binding Oligomerization Domain 2 (NOD2) expression through recruiting leucine-rich pentatricopeptide repeat motif-containing protein (LRPPRC) to stabilize NOD2 mRNA. Experimental data showed that knockdown of NOD2 or LRPPRC dramatically abrogated the functional role of ZEB1-AS1 in ox-LDL-induced endothelial cell injury. In summary, we demonstrated that lncRNA ZEB1-AS1 regulates the ox-LDL-induced endothelial cell injury via an LRPPRC-dependent mRNA stabilization mechanism. Therefore, ZEB1-AS1 may serve as a multi-potency target to overcome endothelial cell injury, atherosclerosis and other cardiovascular diseases.
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Affiliation(s)
- Xiaohui Xu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Congmin Ma
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Zhihui Duan
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Yanjiao Du
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Chao Liu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
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15
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Muramyl Dipeptide Induces Reactive Oxygen Species Generation Through the NOD2/COX-2/NOX4 Signaling Pathway in Human Umbilical Vein Endothelial Cells. J Cardiovasc Pharmacol 2019; 71:352-358. [PMID: 29634657 DOI: 10.1097/fjc.0000000000000581] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Vascular endothelium dysfunction caused by oxidative stress accelerates the pathologic process of cardiovascular diseases. NOD2, an essential receptor of innate immune system, has been demonstrated to play a critical role in atherosclerosis. Here, the aim of our study was to investigate the effect and underlying molecular mechanism of muramyl dipeptide (MDP) on NOX4-mediated reactive oxygen species (ROS) generation in human umbilical vein endothelial cells (HUVECs). The 2,7-dichlorofluorescein diacetate staining was to measure the intracellular ROS level and showed MDP-promoted ROS production in a time- and dose-dependent manner. The mRNA and protein levels of NOX4 and COX-2 were detected by real-time polymerase chain reaction and western blot. Small interfering RNA (siRNA) was used to silence NOD2 or COX-2 gene expression and investigate the mechanism of NOD2-mediated signaling pathway in HUVECs. Data showed that MDP induced NOX4 and COX-2 expression in a time- and dose-dependent manner. NOD2 knock-down suppressed upregulation of COX-2 and NOX4 in HUVECs treated with MDP. Furthermore, silence of COX-2 in HUVECs downregulated the NOX4 expression after MDP stimulation. Collectively, we indicated that NOD2 played a leading role in MDP-induced COX-2/NOX4/ROS signaling pathway in HUVECs, which was a novel regulatory mechanism in the progress of ROS generation.
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16
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Chen L, Kong L, Wei X, Wang Y, Wang B, Zhang X, Sun J, Liu H. β-arrestin 2 negatively regulates NOD2 signalling pathway through association with TRAF6 in microglia after cerebral ischaemia/reperfusion injury. J Cell Mol Med 2019; 23:3325-3335. [PMID: 30793522 PMCID: PMC6484299 DOI: 10.1111/jcmm.14223] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 01/02/2019] [Accepted: 01/24/2019] [Indexed: 01/14/2023] Open
Abstract
We previously reported that nucleotide‐binding oligomerization domain‐containing protein (NOD) 2 was involved in the inflammatory responses to cerebral ischaemia/reperfusion (I/R) insult. However, the mechanism by which NOD2 participates in brain ischaemic injury and the regulation of NOD2 in the process are still obscure. Increased β‐arrestin 2 (ARRB2) expression was observed in microglia following cerebral I/R in wild‐type mice besides the up‐regulation of NOD2 and TRAF6. Stimulation of NOD2 by muramyl dipeptide (MDP) in BV2 cells induced the activation of NF‐κB by the phosphorylation of p65 subunit and the degradation of IκBα. Meanwhile, the protein level of Cyclooxygenase‐2 (COX‐2), the protein expression and activity of MMP‐9 were significantly increased in BV2 cells after administration of MDP. Furthermore, overexpression of ARRB2 significantly suppressed the inflammation induced by MDP, silence of ARRB2 significantly enhanced the inflammation induced by MDP in BV2 cells. In addition, we observed endogenous interaction of TRAF6 and ARRB2 after stimulation of MDP or cerebral I/R insult, indicating ARRB2 negatively regulates NOD2‐triggered inflammatory signalling pathway by associating with TRAF6 in microglia after cerebral I/R injury. Finally, the in vivo study clearly confirmed that ARRB2 negatively regulated NOD2‐induced inflammatory response, as ARRB2 deficiency exacerbated stroke outcomes and aggravated the NF‐κB signalling pathway induced by NOD2 stimulation after cerebral I/R injury. These findings revealed ARRB2 negatively regulated NOD2 signalling pathway through the association with TRAF6 in cerebral I/R injury.
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Affiliation(s)
- Lin Chen
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P.R. China
| | - Lingjun Kong
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P.R. China
| | - Xinbing Wei
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P.R. China
| | - Yimeng Wang
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P.R. China
| | - Bing Wang
- Department of Emergency, The people's Hospital of Huaiyin, Jinan, Shandong, P.R. China
| | - Xiumei Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P.R. China
| | - Jinpeng Sun
- Key Laboratory Experimental Teratology of the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University, Jinan, P.R. China
| | - Huiqing Liu
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P.R. China
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17
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Shen L, Li L, Li M, Wang W, Yin W, Liu W, Hu Y. Silencing of NOD2 protects against diabetic cardiomyopathy in a murine diabetes model. Int J Mol Med 2018; 42:3017-3026. [PMID: 30221681 PMCID: PMC6202090 DOI: 10.3892/ijmm.2018.3880] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 07/24/2018] [Indexed: 12/16/2022] Open
Abstract
The aim of the present study was to investigate the role of the nucleotide‑binding oligomerization domain (NOD) 2 in high glucose (HG)‑induced myocardial apoptosis and fibrosis in mice. Mouse models of diabetes were induced by streptozotocin (STZ). NOD2 expression was knocked down by injection of lentivirus‑mediated short‑hairpin RNA. Alternatively, small interfering RNA‑NOD2 was transfected into cardiomyocytes and cardiac fibroblasts (CFs). A hemodynamic assay was used to assess the cardiac function in the mouse model. Hematoxylin and eosin, Masson and terminal deoxynucleotidyl transferase dUTP nick end labeling staining was performed to observe pathological changes and injury of myocardial tissue. The expression levels of NOD2, collagen I and III, and transforming growth factor‑β (TGF‑β) and apoptotic proteins were quantified by reverse transcription‑quantitative polymerase chain reaction and western blotting. NOD2 silencing ameliorated diabetes‑induced myocardial apoptosis and fibrosis in mice. NOD2, collagen I, collagen III, TGF‑β and pro‑apoptotic proteins were upregulated in the diabetic cardiomyopathy (DCM) model group, but interference of NOD2 suppressed these alterations in protein expression levels. NOD2 is upregulated in HG‑induced primary cardiomyocytes and CFs. Suppression of NOD2 attenuated HG‑induced cardiomyocyte apoptosis and proliferation of CFs. Overall, NOD2 silencing alleviated myocardial apoptosis and fibrosis in diabetic mice. The results of the present study demonstrated an understanding of the role of NOD2 in diabetes‑induced cardiomyopathy, which provides a novel target and therapies for the prevention and treatment of DCM.
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Affiliation(s)
- Lin Shen
- Department of Geriatrics, Shandong Qilu Hospital, Jinan, Shandong 250012, P.R. China
| | - Li Li
- The Undergraduate Teaching Department, Shandong University Qilu Medical College, Jinan, Shandong 250012, P.R. China
| | - Man Li
- Department of Geriatrics, Shandong Qilu Hospital, Jinan, Shandong 250012, P.R. China
| | - Weiling Wang
- Department of Geriatrics, Shandong Qilu Hospital, Jinan, Shandong 250012, P.R. China
| | - Wenbin Yin
- Department of Geriatrics, Shandong Qilu Hospital, Jinan, Shandong 250012, P.R. China
| | - Wei Liu
- Department of Geriatrics, Shandong Qilu Hospital, Jinan, Shandong 250012, P.R. China
| | - Yanyan Hu
- Department of Geriatrics, Shandong Qilu Hospital, Jinan, Shandong 250012, P.R. China
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18
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Chen X, Xiao Z, Xie X, Liu X, Jiang M, Yuan C, Yang L, Hu J. TNF‐α‐Induced NOD2 and RIP2 Contribute to the Up‐Regulation of Cytokines Induced by MDP in Monocytic THP‐1 Cells. J Cell Biochem 2018. [DOI: 10.1002/jcb.26227] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Xiaobin Chen
- Department of Cardiology, Xiangya HospitalCentral South UniversityChangsha 410008China
| | - Zhilin Xiao
- Department of Geriatric Cardiology, Xiangya HospitalCentral South UniversityChangsha 410008China
| | - Xiumei Xie
- Department of Geriatric Cardiology, Xiangya HospitalCentral South UniversityChangsha 410008China
| | - Xueting Liu
- Medical Research CenterChangsha Central HospitalChangshaHunan 410004China
| | - Manli Jiang
- Medical Research CenterChangsha Central HospitalChangshaHunan 410004China
| | - Chuang Yuan
- Medical Research CenterChangsha Central HospitalChangshaHunan 410004China
| | - Li Yang
- Tuberculosis Research CenterChangsha Central HospitalChangshaHunan 410004China
| | - Jinyue Hu
- Medical Research CenterChangsha Central HospitalChangshaHunan 410004China
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19
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Abstract
The nucleotide-binding oligomerization domain (NOD) protein, NOD2, belonging to the intracellular NOD-like receptor family, detects conserved motifs in bacterial peptidoglycan and promotes their clearance through activation of a proinflammatory transcriptional program and other innate immune pathways, including autophagy and endoplasmic reticulum stress. An inactive form due to mutations or a constitutive high expression of NOD2 is associated with several inflammatory diseases, suggesting that balanced NOD2 signaling is critical for the maintenance of immune homeostasis. In this review, we discuss recent developments about the pathway and mechanisms of regulation of NOD2 and illustrate the principal functions of the gene, with particular emphasis on its central role in maintaining the equilibrium between intestinal microbiota and host immune responses to control inflammation. Furthermore, we survey recent studies illustrating the role of NOD2 in several inflammatory diseases, in particular, inflammatory bowel disease, of which it is the main susceptibility gene.
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Affiliation(s)
- Anna Negroni
- Division of Health Protection Technologies, Territorial and Production Systems Sustainability Department, ENEA, Rome, Italy
| | - Maria Pierdomenico
- Department of Pediatrics and Infantile Neuropsychiatry, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Rome, Italy
| | - Salvatore Cucchiara
- Department of Pediatrics and Infantile Neuropsychiatry, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Rome, Italy
| | - Laura Stronati
- Department of Cellular Biotechnology and Hematology, Sapienza University of Rome, Rome, Italy
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20
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Bomfim GF, Rodrigues FL, Carneiro FS. Are the innate and adaptive immune systems setting hypertension on fire? Pharmacol Res 2017; 117:377-393. [PMID: 28093357 DOI: 10.1016/j.phrs.2017.01.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 12/06/2016] [Accepted: 01/09/2017] [Indexed: 02/08/2023]
Abstract
Hypertension is the most common chronic cardiovascular disease and is associated with several pathological states, being an important cause of morbidity and mortality around the world. Low-grade inflammation plays a key role in hypertension and the innate and adaptive immune systems seem to contribute to hypertension development and maintenance. Hypertension is associated with vascular inflammation, increased vascular cytokines levels and infiltration of immune cells in the vasculature, kidneys and heart. However, the mechanisms that trigger inflammation and immune system activation in hypertension are completely unknown. Cells from the innate immune system express pattern recognition receptors (PRR), which detect conserved pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs) that induce innate effector mechanisms to produce endogenous signals, such as inflammatory cytokines and chemokines, to alert the host about danger. Additionally, antigen-presenting cells (APC) act as sentinels that are activated by PAMPs and DAMPs to sense the presence of the antigen/neoantigen, which ensues the adaptive immune system activation. In this context, different lymphocyte types are activated and contribute to inflammation and end-organ damage in hypertension. This review will focus on experimental and clinical evidence demonstrating the contribution of the innate and adaptive immune systems to the development of hypertension.
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Affiliation(s)
- Gisele F Bomfim
- Institute of Health Sciences, Federal University of Mato Grosso, Sinop, MT, Brazil
| | - Fernanda Luciano Rodrigues
- Department of Physiology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Fernando S Carneiro
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, 14049-900 Ribeirao Preto, SP, Brazil.
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21
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Feerick CL, McKernan DP. Understanding the regulation of pattern recognition receptors in inflammatory diseases - a 'Nod' in the right direction. Immunology 2016; 150:237-247. [PMID: 27706808 DOI: 10.1111/imm.12677] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/15/2016] [Accepted: 09/28/2016] [Indexed: 12/11/2022] Open
Abstract
Nucleotide-binding oligomerization domain (NOD) -like receptors (NLRs) are a family of 23 receptors known as pattern recognition receptors; they are expressed in many cell types and play a key role in the innate immune response. The NLRs are activated by pathogen-associated molecular patterns, which include structurally conserved molecules present on the surfaces of bacteria. The activation of these NLRs by pathogens results in the downstream activation of signalling kinases and transcription factors, culminating in the transcription of genes coding for pro-inflammatory factors. Expression of NLR is altered in many cellular, physiological and disease states. There is a lack of understanding of the mechanisms by which NLR expression is regulated, particularly in chronic inflammatory states. Genetic polymorphisms and protein interactions are included in such mechanisms. This review seeks to examine the current knowledge regarding the regulation of this family of receptors and their signalling pathways as well as how their expression changes in disease states with particular focus on NOD1 and NOD2 in inflammatory bowel diseases among others.
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Affiliation(s)
- Claire L Feerick
- Pharmacology & Therapeutics, National University of Ireland, Galway, Ireland
| | - Declan P McKernan
- Pharmacology & Therapeutics, National University of Ireland, Galway, Ireland
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22
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NALP3-Inflammasome-Related Gene Polymorphisms in Patients with Prehypertension and Coronary Atherosclerosis. BIOMED RESEARCH INTERNATIONAL 2016; 2016:7395627. [PMID: 27446957 PMCID: PMC4944040 DOI: 10.1155/2016/7395627] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 06/05/2016] [Accepted: 06/06/2016] [Indexed: 01/06/2023]
Abstract
Objectives. Prehypertension is an early stage of hypertension that is characterized by inflammatory factors. Inflammation also plays an essential role in the development of coronary atherosclerosis (CAS). The present study evaluated the NALP3-inflammasome and its related genes, NLRP3, NOD2, and CARD8, using SNP linkage and gene haplotypes in prehypertensive patients. Methods. A total of 576 patients with prehypertension and suspected coronary heart disease (CHD) were enrolled. According to coronary angiography, patients were divided into two groups: arterial stenosis <50% of the diameter (control) and arterial stenosis >50% of the diameter (case). Fifteen polymorphisms in the NOD2, NLRP3, and CARD8 genes were analyzed, and serum levels of C-reactive protein (CRP) were measured. Results. When comparing allele frequencies, none of these 15 SNPs in NOD2, CARD8, and NLPR3 genes showed a significant difference using multiple logistic regression. However, the CTACATAA (p = 0.0064) and CCACATAG (p = 0.0126) haplotypes of the NOD2 gene SNPs were significantly different between cases and controls. Conclusions. Although our study excludes a significant association of selected SNPs in these genes with CHD in prehypertension patients, this work suggests that the CTACATAA and CCACATAG haplotypes were associated with CHD in the NOD2 locus. This work suggests that the CTACATAA and CCACATAG haplotypes were associated with CHD in prehypertension patients in the NOD2 locus.
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Nagata E, Oho T. Invasive Streptococcus mutans induces inflammatory cytokine production in human aortic endothelial cells via regulation of intracellular toll-like receptor 2 and nucleotide-binding oligomerization domain 2. Mol Oral Microbiol 2016; 32:131-141. [PMID: 27004566 DOI: 10.1111/omi.12159] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2016] [Indexed: 12/27/2022]
Abstract
Streptococcus mutans, the primary etiologic agent of dental caries, can gain access to the bloodstream and has been associated with cardiovascular disease. However, the roles of S. mutans in inflammation in cardiovascular disease remain unclear. The aim of this study was to examine cytokine production induced by S. mutans in human aortic endothelial cells (HAECs) and to evaluate the participation of toll-like receptors (TLRs) and cytoplasmic nucleotide-binding oligomerization domain (NOD) -like receptors in HAECs. Cytokine production by HAECs was determined using enzyme-linked immunosorbent assays, and the expression of TLRs and NOD-like receptors was evaluated by real-time polymerase chain reaction, flow cytometry and immunocytochemistry. The involvement of TLR2 and NOD2 in cytokine production by invaded HAECs was examined using RNA interference. The invasion efficiencies of S. mutans strains were evaluated by means of antibiotic protection assays. Five of six strains of S. mutans of various serotypes induced interleukin-6, interleukin-8 and monocyte chemoattractant protein-1 production by HAECs. All S. mutans strains upregulated TLR2 and NOD2 mRNA levels in HAECs. Streptococcus mutans Xc upregulated the intracellular TLR2 and NOD2 protein levels in HAECs. Silencing of the TLR2 and NOD2 genes in HAECs invaded by S. mutans Xc led to a reduction in interleukin-6, interleukin-8 and monocyte chemoattractant protein-1 production. Cytokine production induced by invasive S. mutans via intracellular TLR2 and NOD2 in HAECs may be associated with inflammation in cardiovascular disease.
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Affiliation(s)
- E Nagata
- Department of Preventive Dentistry, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - T Oho
- Department of Preventive Dentistry, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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Shiny A, Regin B, Mohan V, Balasubramanyam M. Coordinated augmentation of NFAT and NOD signaling mediates proliferative VSMC phenotype switch under hyperinsulinemia. Atherosclerosis 2016; 246:257-66. [PMID: 26814423 DOI: 10.1016/j.atherosclerosis.2016.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/20/2015] [Accepted: 01/05/2016] [Indexed: 11/29/2022]
Abstract
AIM Although hyperglycemia has been demonstrated to play a significant role in the vascular disease associated with type 2 diabetes, the mechanisms underlying hyperinsulinemia mediated vascular dysfunction are not well understood. We have analyzed whether hyperinsulinemia could activate NFAT (Nuclear factor of activated T cells) signaling and thereby influence vascular smooth muscle cell (VSMC) migration and proliferation, a major event in the progression of atherosclerosis. METHODS AND RESULTS Human aortic VSMCs upon chronic insulin treatment exhibited increased expression of NFATc1 both at the mRNA and protein levels. The mechanistic role of NFAT in VSMC migration and proliferation was examined using 11R-VIVIT, a cell permeable NFAT specific inhibitor, where it reduced the insulin effect on VSMC, which was further substantiated by over expression or silencing of NFATc1gene (p < 0.05). This study also report for the first time the role of NFAT in NOD (Nucleotide oligomerization domain) mediated innate immune signaling and its significance in insulin effect on VSMCs. mRNA expression of NOD was up regulated when cells were treated with insulin or ligands whereas pretreatment with 11R-VIVIT reversed this effect (p < 0.05). Our study uphold the clinical significance as we observed an increased mRNA expression of NFATc1 in monocytes isolated from patients with type 2 diabetes which correlated positively with insulin resistance and glycemic load (p < 0.05). DISCUSSION This study suggests that targeted NFAT inhibition can be an effective strategy to coordinately quench insulin induced proliferative and inflammatory responses along with innate immunity alterations in vascular smooth muscle cells, which underlie atherosclerosis.
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Affiliation(s)
- Abhijit Shiny
- Department of Cell and Molecular Biology, Madras Diabetes Research Foundation, Dr. Mohan's Diabetes Specialities Centre Gopalapuram, Chennai, India.
| | - Bhaskaran Regin
- Department of Cell and Molecular Biology, Madras Diabetes Research Foundation, Dr. Mohan's Diabetes Specialities Centre Gopalapuram, Chennai, India
| | - Viswanathan Mohan
- Department of Cell and Molecular Biology, Madras Diabetes Research Foundation, Dr. Mohan's Diabetes Specialities Centre Gopalapuram, Chennai, India
| | - Muthuswamy Balasubramanyam
- Department of Cell and Molecular Biology, Madras Diabetes Research Foundation, Dr. Mohan's Diabetes Specialities Centre Gopalapuram, Chennai, India
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Kim HJ. Role of Nucleotide-binding and Oligomerization Domain 2 Protein (NOD2) in the Development of Atherosclerosis. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2015; 19:479-84. [PMID: 26557013 PMCID: PMC4637349 DOI: 10.4196/kjpp.2015.19.6.479] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 08/13/2015] [Accepted: 08/14/2015] [Indexed: 12/19/2022]
Abstract
NOD2 (nucleotide-binding and oligomerization domain 2) was initially reported as a susceptibility gene for Crohn's disease, with several studies focused on elucidating its molecular mechanism in the progression of Crohn's disease. We now know that NOD2 is an intracellular bacterial sensing receptor, and that MDP-mediated NOD2 activation drives inflammatory signaling. Various mutations in NOD2 have been reported, with NOD2 loss of function being associated with the development of Crohn's disease and other autoimmune diseases. These results suggest that NOD2 not only has an immune stimulatory function, but also an immune regulatory function. Atherosclerosis is a chronic inflammatory disease of the arterial wall; its pathologic progression is highly dependent on the immune balance. This immune balance is regulated by infiltrating monocytes and macrophages, both of which express NOD2. These findings indicate a potential role of NOD2 in atherosclerosis. The purpose of this review is to outline the known roles of NOD2 signaling in the pathogenesis of atherosclerosis.
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Affiliation(s)
- Ha-Jeong Kim
- Department of Physiology, Cell and Matrix Research Institute, BK21 Plus KNU Biomedical Convergence Program, Tumor Heterogeneity and Network (THEN) Research Center, School of Medicine, Kyungpook National University, Daegu 41944, Korea
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Hoefer IE, Steffens S, Ala-Korpela M, Bäck M, Badimon L, Bochaton-Piallat ML, Boulanger CM, Caligiuri G, Dimmeler S, Egido J, Evans PC, Guzik T, Kwak BR, Landmesser U, Mayr M, Monaco C, Pasterkamp G, Tuñón J, Weber C. Novel methodologies for biomarker discovery in atherosclerosis. Eur Heart J 2015; 36:2635-42. [DOI: 10.1093/eurheartj/ehv236] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 05/18/2015] [Indexed: 01/21/2023] Open
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Affiliation(s)
- Ziad Mallat
- From the Department of Medicine, Division of Cardiovascular Medicine, University of Cambridge, Cambridge, United Kingdom; and Institut National de la Santé et de la Recherche Médicale, U970, Paris, France.
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Liu H, Wei X, Kong L, Liu X, Cheng L, Yan S, Zhang X, Chen L. NOD2 is involved in the inflammatory response after cerebral ischemia-reperfusion injury and triggers NADPH oxidase 2-derived reactive oxygen species. Int J Biol Sci 2015; 11:525-35. [PMID: 25892960 PMCID: PMC4400384 DOI: 10.7150/ijbs.10927] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/23/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Increasing evidences suggest that innate immunity is involved in cerebral ischemia-reperfusion (I/R) injury, but the liable innate immune receptors have not been completely elucidated. Here, we explored the role of the nucleotide-binding oligomerization domain (NOD)2, a member of the cytosolic NOD-like receptor family, in acute focal cerebral I/R injury. METHODS An in vivo middle cerebral artery occlusion (MCAO) model that in wild type (WT) and NOD2 deficient (NOD2(-/-)) mice and in vitro model of oxygen glucose deprivation and reoxygenation (OGD/R) in cultured primary microglia and astrocytes were used to investigate the expression of NOD2 and explore the roles of NOD2 in ischemic stroke. RESULTS Our results showed that NOD2 expression was significantly increased in microglia and astrocytes in response to the I/R insult. Pretreatment with muramyl dipeptide, an extrinsic ligand of NOD2, significantly increased the infarct volume and neurological dysfunction in mice subjected to MCAO. Genetic ablation of the NOD2 gene significantly improved stroke outcomes and reduced inflammation, as evidenced by a lower expression of the pro-inflammatory cytokines IL-1β, IL-6 and TNFα in conjunction with attenuated activation of nuclear factor κB (NF-κB), p38 mitogen activated protein kinases (MAPK) and JNK. Moreover, NOD2 deficiency prevented the upregulation of the NADPH oxidase (NOX) 2 and ROS generation induced by I/R. Mechanistically, NOD2-induced production of IL-6 in primary cultured microglia was mediated through activation of NOX2. CONCLUSIONS This study showed the contribution of NOD2 to inflammatory response and provided direct evidence that NOX2-mediated oxidative stress as an important target molecule linked NOD2 to inflammatory damage in ischemic stroke. Pharmacological targeting of NOD2-mediated inflammatory response at multiple levels may help design a new approach to develop therapeutic strategies for prevention of deterioration of cerebral function and for the treatment of stroke.
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Affiliation(s)
- Huiqing Liu
- 1. Department of Pharmacology, School of Medicine, Shandong University, Wenhua West Road 44, Jinan, Shandong 250012, P.R. China
| | - Xinbing Wei
- 1. Department of Pharmacology, School of Medicine, Shandong University, Wenhua West Road 44, Jinan, Shandong 250012, P.R. China
| | - Lingjun Kong
- 1. Department of Pharmacology, School of Medicine, Shandong University, Wenhua West Road 44, Jinan, Shandong 250012, P.R. China
| | - Xiaoqian Liu
- 1. Department of Pharmacology, School of Medicine, Shandong University, Wenhua West Road 44, Jinan, Shandong 250012, P.R. China. ; 2. Key Laboratory of Molecular Pharmacology and Drug Evaluation (Ministry of Education of China), School of Pharmacy, Yantai University, Qingquan Road 30, Yantai, Shandong 264005, P.R. China
| | - Li Cheng
- 1. Department of Pharmacology, School of Medicine, Shandong University, Wenhua West Road 44, Jinan, Shandong 250012, P.R. China
| | - Shi Yan
- 3. Department of Obstetrics and Gynaecology, Qilu Hospital of Shandong University, Wenhua West Road 107, Jinan, Shandong 250012, P.R. China
| | - Xiumei Zhang
- 1. Department of Pharmacology, School of Medicine, Shandong University, Wenhua West Road 44, Jinan, Shandong 250012, P.R. China
| | - Lin Chen
- 1. Department of Pharmacology, School of Medicine, Shandong University, Wenhua West Road 44, Jinan, Shandong 250012, P.R. China
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miR-146a-5p Antagonized AGEs- and P.g-LPS-Induced ABCA1 and ABCG1 Dysregulation in Macrophages via IRAK-1 Downregulation. Inflammation 2015; 38:1761-8. [DOI: 10.1007/s10753-015-0153-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
Inflammatory arterial diseases differentially affect the compartments of the vessel wall. The intima and adventitia are commonly involved by the disease process, with luminal and microvascular endothelial cells playing a critical role in the recruitment and activation of leukocytes. In contrast, the avascular media is often spared by immune-mediated disorders. Surprisingly, vascular smooth muscle cells (VSMCs), the predominant and often exclusive cell type of the media, are capable of robust proinflammatory responses to diverse stressors. The multiple cytokines and chemokines produced within the media can profoundly affect macrophage and T cell function, thus amplifying and shaping innate and adaptive immune responses. On the other hand, VSMCs and the extracellular matrix that they produce also display significant anti-inflammatory properties. The balance between the pro- and anti-inflammatory effects of VSMCs and their extracellular matrix versus the strength of the inciting immunologic events determines the pattern of medial pathology. Limitations on the extent of medial infiltration and injury, defined as medial immunoprivilege, are typically seen in arteriosclerotic diseases, such as atherosclerosis and transplant vasculopathy. Conversely, breakdown of medial immunoprivilege that manifests as more intense leukocytic infiltrates, loss of VSMCs, and destruction of the extracellular matrix architecture is a general feature of certain aneurysmal diseases and vasculitides. In this review, we consider the inflammatory and immune functions of VSMCs and how they may lead to medial immunoprivilege or medial inflammation in arterial diseases.
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Affiliation(s)
- George Tellides
- From the Departments of Surgery (G.T.) and Immunobiology (J.S.P.), Yale University School of Medicine, New Haven, CT; and Veterans Affairs Connecticut Healthcare System, West Haven, CT (G.T.).
| | - Jordan S Pober
- From the Departments of Surgery (G.T.) and Immunobiology (J.S.P.), Yale University School of Medicine, New Haven, CT; and Veterans Affairs Connecticut Healthcare System, West Haven, CT (G.T.)
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Zhang S, Zhang S, Hu L, Zhai L, Xue R, Ye J, Chen L, Cheng G, Mruk J, Kunapuli SP, Ding Z. Nucleotide-binding oligomerization domain 2 receptor is expressed in platelets and enhances platelet activation and thrombosis. Circulation 2015; 131:1160-70. [PMID: 25825396 DOI: 10.1161/circulationaha.114.013743] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Pattern recognition receptor nucleotide-binding oligomerization domain 2 (NOD2) is well investigated in immunity, but its expression and function in platelets has never been explored. METHOD AND RESULTS Using reverse transcription polymerase chain reaction and Western blot, we show that both human and mouse platelets express NOD2, and its agonist muramyl dipeptide induced NOD2 activation as evidenced by receptor dimerization. NOD2 activation potentiates platelet aggregation and secretion induced by low concentrations of thrombin or collagen, and clot retraction, as well. These potentiating effects of muramyl dipeptide were not seen in platelets from NOD2-deficient mice. Plasma from septic patients also potentiates platelet aggregation induced by thrombin or collagen NOD2 dependently. Using intravital microscopy, we found that muramyl dipeptide administration accelerated in vivo thrombosis in a FeCl3-injured mesenteric arteriole thrombosis mouse model. Platelet depletion and transfusion experiments confirmed that NOD2 from platelets contributes to the in vivo thrombosis in mice. NOD2 activation also accelerates platelet-dependent hemostasis. We further found that platelets express receptor-interacting protein 2, and provided evidence suggesting that mitogen activated-protein kinase and nitric oxide/soluble guanylyl cyclase/cGMP/protein kinase G pathways downstream of receptor-interacting protein mediate the role of NOD2 in platelets. Finally, muramyl dipeptide stimulates proinflammatory cytokine interleukin-1β maturation and accumulation in human and mouse platelets NOD2 dependently. CONCLUSIONS NOD2 is expressed in platelets and functions in platelet activation and arterial thrombosis, possibly during infection. To our knowledge, this is the first study on NOD-like receptors in platelets that link thrombotic events to inflammation.
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Affiliation(s)
- Si Zhang
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Shenghui Zhang
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Liang Hu
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Lili Zhai
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Ruyi Xue
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Jianqin Ye
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Leilei Chen
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Guanjun Cheng
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Jozef Mruk
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Satya P Kunapuli
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.)
| | - Zhongren Ding
- From Key Laboratory of Molecular Medicine, Ministry of Education, and Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China (Si Zhang, Shenghui Zhang, L.H., L.Z., J.Y., L.C., Z.D.); Department of Internal Medicine, and Institute of Liver Disease, Fudan University Zhongshan Hospital, Shanghai, China (R.X.); Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia, (G.C.); Department of Internal Medicine, University of Kansas School of Medicine, Wichita (J.S.M.); and Department of Physiology and Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA (S.P.K.).
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Kasuga K, Suga T, Mano N. Bioanalytical insights into mediator lipidomics. J Pharm Biomed Anal 2015; 113:151-62. [PMID: 25769667 DOI: 10.1016/j.jpba.2015.02.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 02/04/2015] [Accepted: 02/06/2015] [Indexed: 02/07/2023]
Abstract
The importance of lipids in health and disease has been widely acknowledged. Lipids are well known to undergo enzymatic and/or non-enzymatic conversions to lipid mediators (LMs), which demonstrate potent actions in various biological events, such as the regulation of cellular signaling pathways and the promotion and resolution of inflammation. LMs activate G-protein-coupled receptors (GPCRs) to exert various functions. Monitoring these mediators in disease is essential to uncover the mechanisms of pathogenesis for many diseases, such as asthma, rheumatoid arthritis, Alzheimer's disease, and cancer. Along with technical developments in mass spectrometry, highly sensitive and multiplexed analyses of LMs in the human periphery and other tissues have become available. These advancements enable the temporal and spatial profiling of LMs; therefore, the findings obtained from LM profiling are expected to decode pathology. As trace amounts of LMs can exert functions, the development of a highly sensitive, accurate, and robust analytical method is necessary. Although not mandatory, mediator lipidomics validation is becoming popular and remains challenging. Because LMs already exist in biological matrices, evaluations of the matrix effect and extraction efficiencies are important issues. Thus, more careful analyses are required. In this review, we focus on mediator lipidomics, including polyunsaturated fatty acids (PUFAs), such as omega-3 and omega-6 fatty acids, and LMs derived from PUFAs, such as eicosanoids, lipoxins and resolvins. In addition to the recent progress in human mediator lipidomics, bioanalytical insights derived from this field (i.e., effective sample preparation from biological matrices and evaluation of the matrix effect) are described herein.
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Affiliation(s)
- Kie Kasuga
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan.
| | - Takahiro Suga
- Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Nariyasu Mano
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan; Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
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Abstract
The view of atherosclerosis as an inflammatory disease has emerged from observations of immune activation and inflammatory signalling in human atherosclerotic lesions, from the definition of inflammatory biomarkers as independent risk factors for cardiovascular events, and from evidence of low-density lipoprotein-induced immune activation. Studies in animal models of hyperlipidaemia have also supported the beneficial effects of countering inflammation to delay atherosclerosis progression. Specific inflammatory pathways with relevance to human diseases have been identified, and inhibitors of these pathways are either already in use for the treatment of other diseases, or are under development and evaluation. These include 'classic' drugs (such as allopurinol, colchicine, and methotrexate), biologic therapies (for example tumour necrosis factor inhibitors and IL-1 neutralization), as well as targeting of lipid mediators (such as phospholipase inhibitors and antileukotrienes) or intracellular pathways (inhibition of NADPH oxidase, p38 mitogen-activated protein kinase, or phosphodiesterase). The evidence supporting the use of anti-inflammatory therapies for atherosclerosis is mainly based on either observational or small interventional studies evaluating surrogate markers of disease activity. Nevertheless, these data are crucial to understand the role of inflammation in atherosclerosis, and to design randomized controlled studies to evaluate the effect of specific anti-inflammatory strategies on cardiovascular outcomes.
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Affiliation(s)
- Magnus Bäck
- Experimental Cardiovascular Research Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, L8:03, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | - Göran K Hansson
- Experimental Cardiovascular Research Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, L8:03, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
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Amar S, Engelke M. Periodontal innate immune mechanisms relevant to atherosclerosis. Mol Oral Microbiol 2014; 30:171-85. [PMID: 25388989 DOI: 10.1111/omi.12087] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2014] [Indexed: 12/14/2022]
Abstract
Atherosclerosis is a common cardiovascular disease in the USA where it is a leading cause of illness and death. Atherosclerosis is the most common cause for heart attack and stroke. Most commonly, people develop atherosclerosis as a result of diabetes, genetic risk factors, high blood pressure, a high-fat diet, obesity, high blood cholesterol levels, and smoking. However, a sizable number of patients suffering from atherosclerosis do not harbor the classical risk factors. Ongoing infections have been suggested to play a role in this process. Periodontal disease is perhaps the most common chronic infection in adults with a wide range of clinical variability and severity. Research in the past decade has shed substantial light on both the initiating infectious agents and host immunological responses in periodontal disease. Up to 46% of the general population harbors the microorganism(s) associated with periodontal disease, although many are able to limit the progression of periodontal disease or even clear the organism(s) if infected. In the last decade, several epidemiological studies have found an association between periodontal infection and atherosclerosis. This review focuses on exploring the molecular consequences of infection by pathogens that exacerbate atherosclerosis, with the focus on infections by the periodontal bacterium Porphyromonas gingivalis as a running example.
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Affiliation(s)
- S Amar
- Center for Anti-inflammatory Therapeutics, School of Dental Medicine, Boston University, Boston, MA, USA
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Tetramethylpyrazine Analogue CXC195 Ameliorates Cerebral Ischemia–reperfusion Injury by Regulating Endothelial Nitric Oxide Synthase Phosphorylation Via PI3K/Akt Signaling. Neurochem Res 2014; 40:446-54. [DOI: 10.1007/s11064-014-1485-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 11/03/2014] [Accepted: 11/19/2014] [Indexed: 12/26/2022]
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Johansson ME, Zhang XY, Edfeldt K, Lundberg AM, Levin MC, Borén J, Li W, Yuan XM, Folkersen L, Eriksson P, Hedin U, Low H, Sviridov D, Rios FJ, Hansson GK, Yan ZQ. Innate immune receptor NOD2 promotes vascular inflammation and formation of lipid-rich necrotic cores in hypercholesterolemic mice. Eur J Immunol 2014; 44:3081-92. [PMID: 25042478 DOI: 10.1002/eji.201444755] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/16/2014] [Accepted: 07/14/2014] [Indexed: 01/07/2023]
Abstract
Atherosclerosis is an inflammatory disease associated with the activation of innate immune TLRs and nucleotide-binding oligomerization domain-containing protein (NOD)-like receptor pathways. However, the function of most innate immune receptors in atherosclerosis remains unclear. Here, we show that NOD2 is a crucial innate immune receptor influencing vascular inflammation and atherosclerosis severity. 10-week stimulation with muramyl dipeptide (MDP), the NOD2 cognate ligand, aggravated atherosclerosis, as indicated by the augmented lesion burden, increased vascular inflammation and enlarged lipid-rich necrotic cores in Ldlr(-/-) mice. Myeloid-specific ablation of NOD2, but not its downstream kinase, receptor-interacting serine/threonine-protein kinase 2, restrained the expansion of the lipid-rich necrotic core in Ldlr(-/-) chimeric mice. In vitro stimulation of macrophages with MDP enhanced the uptake of oxidized low-density lipoprotein and impaired cholesterol efflux in concordance with upregulation of scavenger receptor A1/2 and downregulation of ATP-binding cassette transporter A1. Ex vivo stimulation of human carotid plaques with MDP led to increased activation of inflammatory signaling pathways p38 MAPK and NF-κB-mediated release of proinflammatory cytokines. Altogether, this study suggests that NOD2 contributes to the expansion of the lipid-rich necrotic core and promotes vascular inflammation in atherosclerosis.
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Affiliation(s)
- Maria E Johansson
- Center for Molecular Medicine, Department of Medicine, Karolinska Institute, Stockholm, Sweden; Department of Physiology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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