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Geng XF, Shang WY, Qi ZW, Zhang C, Li WX, Yan ZP, Fan XB, Zhang JP. The mechanism and promising therapeutic strategy of diabetic cardiomyopathy dysfunctions: Focus on pyroptosis. J Diabetes Complications 2024; 38:108848. [PMID: 39178624 DOI: 10.1016/j.jdiacomp.2024.108848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/16/2024] [Accepted: 08/18/2024] [Indexed: 08/26/2024]
Abstract
Diabetes is a major risk factor for cardiovascular diseases, and myocardial damage caused by hyperglycemia is the main cause of heart failure. However, there is still a lack of systematic understanding of myocardial damage caused by diabetes. At present, we believe that the cellular inflammatory damage caused by hyperglycemia is one of the causes of diabetic cardiomyopathy. Pyroptosis, as a proinflammatory form of cell death, is closely related to the occurrence and development of diabetic cardiomyopathy. Therefore, this paper focuses on the important role of inflammation in the occurrence and development of diabetic cardiomyopathy. From the perspective of pyroptosis, we summarize the pyroptosis of different types of cells in diabetic cardiomyopathy and its related signaling pathways. It also summarizes the treatment of diabetic cardiomyopathy, hoping to provide methods for the prevention and treatment of diabetic cardiomyopathy by inhibiting pyroptosis.
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Affiliation(s)
- Xiao-Fei Geng
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Wen-Yu Shang
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Zhong-Wen Qi
- Postdoctoral Research Station of China Academy of Chinese Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, PR China
| | - Chi Zhang
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Wen-Xiu Li
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Zhi-Peng Yan
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Xin-Biao Fan
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Jun-Ping Zhang
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, PR China.
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Gao X, Ma C, Liang S, Chen M, He Y, Lei W. PANoptosis: Novel insight into regulated cell death and its potential role in cardiovascular diseases (Review). Int J Mol Med 2024; 54:74. [PMID: 38963054 PMCID: PMC11254103 DOI: 10.3892/ijmm.2024.5398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 05/08/2024] [Indexed: 07/05/2024] Open
Abstract
PANoptosis, a complex form of proinflammatory programmed cell death, including apoptosis, pyroptosis and necroptosis, has been an emerging concept in recent years that has been widely reported in cancer, infectious diseases and neurological disorders. Cardiovascular diseases (CVDs) are an important global health problem, posing a serious threat to individuals' lives. An increasing body of research shows that inflammation has a pivotal role in CVDs, which provides an important theoretical basis for PANoptosis to promote the progression of CVDs. To date, only sporadic studies on PANoptosis in CVDs have been reported and its role in the field of CVDs has not been fully explored. Elucidating the various modes of cardiomyocyte death, the specific molecular mechanisms and the links among the various modes of death under various stressful stimuli is of notable clinical significance for a deeper understanding of the pathophysiology of CVDs. The present review summarizes the molecular mechanisms of apoptosis, pyroptosis, necroptosis and PANoptosis and their prospects in the field of CVDs.
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Affiliation(s)
- Xinyu Gao
- Guangdong Provincial Engineering Technology Research Center for Molecular Diagnosis and Innovative Drugs Translation of Cardiopulmonary Vascular Diseases, University Joint Laboratory of Guangdong Province and Macao Region on Molecular Targets and Intervention of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
- Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Cuixue Ma
- Guangdong Provincial Engineering Technology Research Center for Molecular Diagnosis and Innovative Drugs Translation of Cardiopulmonary Vascular Diseases, University Joint Laboratory of Guangdong Province and Macao Region on Molecular Targets and Intervention of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
- Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Shan Liang
- Guangdong Provincial Engineering Technology Research Center for Molecular Diagnosis and Innovative Drugs Translation of Cardiopulmonary Vascular Diseases, University Joint Laboratory of Guangdong Province and Macao Region on Molecular Targets and Intervention of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
- Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Meihong Chen
- Guangdong Provincial Engineering Technology Research Center for Molecular Diagnosis and Innovative Drugs Translation of Cardiopulmonary Vascular Diseases, University Joint Laboratory of Guangdong Province and Macao Region on Molecular Targets and Intervention of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
- Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Yuan He
- Guangdong Provincial Engineering Technology Research Center for Molecular Diagnosis and Innovative Drugs Translation of Cardiopulmonary Vascular Diseases, University Joint Laboratory of Guangdong Province and Macao Region on Molecular Targets and Intervention of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
- Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Wei Lei
- Guangdong Provincial Engineering Technology Research Center for Molecular Diagnosis and Innovative Drugs Translation of Cardiopulmonary Vascular Diseases, University Joint Laboratory of Guangdong Province and Macao Region on Molecular Targets and Intervention of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
- Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
- Department of Precision Laboratory, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
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Liu X, Li Y, Huang L, Kuang Y, Wu X, Ma X, Zhao B, Lan J. Unlocking the therapeutic potential of P2X7 receptor: a comprehensive review of its role in neurodegenerative disorders. Front Pharmacol 2024; 15:1450704. [PMID: 39139642 PMCID: PMC11319138 DOI: 10.3389/fphar.2024.1450704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Accepted: 07/19/2024] [Indexed: 08/15/2024] Open
Abstract
The P2X7 receptor (P2X7R), an ATP-gated ion channel, has emerged as a crucial player in neuroinflammation and a promising therapeutic target for neurodegenerative disorders. This review explores the current understanding of P2X7R's structure, activation, and physiological roles, focusing on its expression and function in microglial cells. The article examines the receptor's involvement in calcium signaling, microglial activation, and polarization, as well as its role in the pathogenesis of Alzheimer's disease, Parkinson's disease, multiple sclerosis, and amyotrophic lateral sclerosis. The review highlights the complex nature of P2X7R signaling, discussing its potential neuroprotective and neurotoxic effects depending on the disease stage and context. It also addresses the development of P2X7R antagonists and their progress in clinical trials, identifying key research gaps and future perspectives for P2X7R-targeted therapy development. By providing a comprehensive overview of the current state of knowledge and future directions, this review serves as a valuable resource for researchers and clinicians interested in exploring the therapeutic potential of targeting P2X7R for the treatment of neurodegenerative disorders.
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Affiliation(s)
- Xiaoming Liu
- Shenzhen Baoan District Hospital of Traditional Chinese Medicine, Shenzhen, China
| | - Yiwen Li
- Shenzhen Baoan District Hospital of Traditional Chinese Medicine, Shenzhen, China
| | - Liting Huang
- Shenzhen Baoan District Hospital of Traditional Chinese Medicine, Shenzhen, China
| | - Yingyan Kuang
- Shenzhen Baoan District Hospital of Traditional Chinese Medicine, Shenzhen, China
| | - Xiaoxiong Wu
- Shenzhen Baoan District Hospital of Traditional Chinese Medicine, Shenzhen, China
| | - Xiangqiong Ma
- Henan Hospital of Integrated Chinese and Western Medicine, Zhengzhou, China
| | - Beibei Zhao
- Shenzhen Baoan District Hospital of Traditional Chinese Medicine, Shenzhen, China
| | - Jiao Lan
- Shenzhen Baoan District Hospital of Traditional Chinese Medicine, Shenzhen, China
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Zhao L, Hu H, Zhang L, Liu Z, Huang Y, Liu Q, Jin L, Zhu M, Zhang L. Inflammation in diabetes complications: molecular mechanisms and therapeutic interventions. MedComm (Beijing) 2024; 5:e516. [PMID: 38617433 PMCID: PMC11014467 DOI: 10.1002/mco2.516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 04/16/2024] Open
Abstract
At present, diabetes mellitus (DM) has been one of the most endangering healthy diseases. Current therapies contain controlling high blood sugar, reducing risk factors like obesity, hypertension, and so on; however, DM patients inevitably and eventually progress into different types of diabetes complications, resulting in poor quality of life. Unfortunately, the clear etiology and pathogenesis of diabetes complications have not been elucidated owing to intricate whole-body systems. The immune system was responsible to regulate homeostasis by triggering or resolving inflammatory response, indicating it may be necessary to diabetes complications. In fact, previous studies have been shown inflammation plays multifunctional roles in the pathogenesis of diabetes complications and is attracting attention to be the meaningful therapeutic strategy. To this end, this review systematically concluded the current studies over the relationships of susceptible diabetes complications (e.g., diabetic cardiomyopathy, diabetic retinopathy, diabetic peripheral neuropathy, and diabetic nephropathy) and inflammation, ranging from immune cell response, cytokines interaction to pathomechanism of organ injury. Besides, we also summarized various therapeutic strategies to improve diabetes complications by target inflammation from special remedies to conventional lifestyle changes. This review will offer a panoramic insight into the mechanisms of diabetes complications from an inflammatory perspective and also discuss contemporary clinical interventions.
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Affiliation(s)
- Lu Zhao
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Haoran Hu
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Lin Zhang
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Zheting Liu
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Yunchao Huang
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Qian Liu
- National Demonstration Center for Experimental Traditional Chinese Medicines Education (Zhejiang Chinese Medical University)College of Pharmaceutical Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Liang Jin
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia MedicaShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Meifei Zhu
- Department of Critical Care MedicineThe First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine)HangzhouChina
| | - Ling Zhang
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
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Zheng H, Liu Q, Zhou S, Luo H, Zhang W. Role and therapeutic targets of P2X7 receptors in neurodegenerative diseases. Front Immunol 2024; 15:1345625. [PMID: 38370420 PMCID: PMC10869479 DOI: 10.3389/fimmu.2024.1345625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 01/16/2024] [Indexed: 02/20/2024] Open
Abstract
The P2X7 receptor (P2X7R), a non-selective cation channel modulated by adenosine triphosphate (ATP), localizes to microglia, astrocytes, oligodendrocytes, and neurons in the central nervous system, with the most incredible abundance in microglia. P2X7R partake in various signaling pathways, engaging in the immune response, the release of neurotransmitters, oxidative stress, cell division, and programmed cell death. When neurodegenerative diseases result in neuronal apoptosis and necrosis, ATP activates the P2X7R. This activation induces the release of biologically active molecules such as pro-inflammatory cytokines, chemokines, proteases, reactive oxygen species, and excitotoxic glutamate/ATP. Subsequently, this leads to neuroinflammation, which exacerbates neuronal involvement. The P2X7R is essential in the development of neurodegenerative diseases. This implies that it has potential as a drug target and could be treated using P2X7R antagonists that are able to cross the blood-brain barrier. This review will comprehensively and objectively discuss recent research breakthroughs on P2X7R genes, their structural features, functional properties, signaling pathways, and their roles in neurodegenerative diseases and possible therapies.
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Affiliation(s)
- Huiyong Zheng
- Second Clinical Medical School, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Qiang Liu
- Second Clinical Medical School, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Siwei Zhou
- Second Clinical Medical School, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Hongliang Luo
- Gastrointestinal Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Wenjun Zhang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
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Liu N, Gong Z, Li Y, Xu Y, Guo Y, Chen W, Sun X, Yin X, Liu W. CTRP3 inhibits myocardial fibrosis through the P2X7R-NLRP3 inflammasome pathway in SHR rats. J Hypertens 2024; 42:315-328. [PMID: 37850974 DOI: 10.1097/hjh.0000000000003591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
BACKGROUND AND PURPOSE Reducing hypertensive myocardial fibrosis is the fundamental approach to preventing hypertensive ventricular remodelling. C1q/TNF-related protein-3 (CTRP3) is closely associated with hypertension. However, the role and mechanism of CTRP3 in hypertensive myocardial fibrosis are unclear. In this study, we aimed to explore the effect of CTRP3 on hypertensive myocardial fibrosis and the potential mechanism. METHODS AND RESULTS WKY and SHR rats were employed, blood pressure, body weight, heart weight, H/BW were measured, and fibrotic-related proteins, CTRP3 and Collagen I were tested in myocardium at 12 and 20 weeks by immunohistochemical staining and Western blotting, respectively. The results showed that compared with the WKY, SBP, DBP, mean arterial pressure and heart rate (HR) were all significantly increased in SHR at 12 and 20 weeks, while heart weight and H/BW were only increased at 20 weeks. Meanwhile, CTRP3 decreased, while Collagen I increased significantly in the SHR rat myocardium at 20 weeks, which compared to the WKY. Moreover, the expression of α-SMA increased from 12 weeks, Collagen I/III and MMP2/9 increased and TIMP-2 decreased until 20 weeks. In order to explore the function and mechanism of CTRP3 in hypertensive fibrosis, Angiotensin II (Ang II) was used to induce hypertension in primary neonatal rat cardiac fibroblasts in vitro . CTRP3 significantly inhibited the Ang II induced activation of fibrotic proteins, purinergic 2X7 receptor (P2X7R)-NLRP3 inflammasome pathway. The P2X7R agonist BzATP significantly exacerbated Ang II-induced NLRP3 inflammasome activation, which was decreased by the P2X7R antagonists A43079, CTRP3 and MCC950. CONCLUSION CTRP3 expression was decreased in the myocardium of SHR rats, and exogenous CTRP3 inhibited Ang II-induced fibrosis in cardiac fibroblasts by regulating the P2X7R-NLRP3 inflammasome pathway, suggesting that CTRP3 is a potential drug for alleviating myocardial fibrosis in hypertensive conditions.
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Affiliation(s)
- Na Liu
- Department of Cardiology, the Fourth Affiliated Hospital of Harbin Medical University
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang
| | - Zhaowei Gong
- Department of Cardiology, the Fourth Affiliated Hospital of Harbin Medical University
| | - Yang Li
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang
| | - Yang Xu
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang
| | - Yutong Guo
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang
| | - Wenjia Chen
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang
| | - Xue Sun
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang
| | - Xinhua Yin
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang
- Department of Cardiology, Shenzhen University General Hospital, Shenzhen, Guangdong, China
| | - Wenxiu Liu
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang
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Lou X, Zhang Y, Guo J, Gao L, Ding Y, Zhuo X, Lei Q, Bian J, Lei R, Gong W, Zhang X, Jiao Q. What is the impact of ferroptosis on diabetic cardiomyopathy: a systematic review. Heart Fail Rev 2024; 29:1-11. [PMID: 37555989 DOI: 10.1007/s10741-023-10336-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/17/2023] [Indexed: 08/10/2023]
Abstract
Iron overload increases the production of harmful reactive oxygen species in the Fenton reaction, which causes oxidative stress in the body and lipid peroxidation in the cell membrane, and eventually leads to ferroptosis. Diabetes is associated with increased intracellular oxidative stress, inflammation, autophagy, microRNA alterations, and advanced glycation end products (AGEs), which cause cardiac remodeling and cardiac diastolic contractile dysfunction, leading to the development of diabetic cardiomyopathy (DCM). While these factors are also closely associated with ferroptosis, more and more studies have shown that iron-mediated ferroptosis is an important causative factor in DCM. In order to gain fresh insights into the functions of ferroptosis in DCM, this review methodically summarizes the traits and mechanisms connected with ferroptosis and DCM.
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Affiliation(s)
- Xiaokun Lou
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China
| | - Yuanyuan Zhang
- Department of Cardiovascular Ultrasonic Center, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Junfeng Guo
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China
| | - Lina Gao
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China
| | - Yingying Ding
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China
| | - Xinyu Zhuo
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China
| | - Qingqing Lei
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China
| | - Jing Bian
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China
| | - Rumei Lei
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China
| | - Wenyan Gong
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China.
- Hangzhou Institute of Cardiovascular Disease, Hangzhou, 310000, China.
| | - Xingwei Zhang
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China.
- Hangzhou Institute of Cardiovascular Disease, Hangzhou, 310000, China.
| | - Qibin Jiao
- Department of Clinical Medicine, Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Wenzhou Road, Gongshu District, Hangzhou, 310000, Zhejiang Province, China.
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Liu J, Huang J, Gong B, Cheng S, Liu Y, Chen Y, Feng Q, Li J, Qiu M, Yu G, Liao Y. Polydatin protects against calcium oxalate crystal-induced renal injury through the cytoplasmic/mitochondrial reactive oxygen species-NLRP3 inflammasome pathway. Biomed Pharmacother 2023; 167:115621. [PMID: 37793278 DOI: 10.1016/j.biopha.2023.115621] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Oxidative stress and inflammatory responses are critical factors in calcium oxalate (CaOx) crystal-induced renal injury. Reactive oxygen species (ROS) are usually produced in the cytoplasm and mitochondria and trigger the priming and activation of the NLRP3 inflammasome, thereby regulating cytokines and inflammation. Polydatin is a plant rhizome extract with anti-inflammatory, antioxidant, and antitumor effects. However, it remains not clear whether and how these pathophysiological processes exists in CaOx crystal-induced renal inflammatory injury. METHODS Here, we measured the expression of the NLRP3 inflammasome, IL-18, IL-1β, intracellular and mitochondrial ROS (mtROS) levels and relevant morphological changes in treated renal tubular epithelial cells (TECs) and stone-forming rats. The study further explored the action of intracellular ROS and mtROS on these inflammatory damage, and the beneficial effects and pathway of polydatin. RESULTS We verified that CaOx crystal-induced cytoplasmic ROS and mtROS upregulation promoted the priming and activation of the NLRP3 inflammasome, thereby stimulating IL-18/1β maturation and activation. Polydatin can relieve oxidative stress and inflammatory damage by decreasing ROS. We further demonstrated that mtROS is the main target for polydatin to exert the NLRP3 inflammasome-regulating function. The inhibition of mtROS can effectively relieve the inflammatory damage to TECs and kidney caused by CaOx crystal. CONCLUSION These findings provide new insight into the relationship between mitochondrial damage and inflammation in nephrolithiasis and show that polydatin-mediated anti-inflammatory and antioxidative protection is a therapeutic strategy for, but not limited to, crystalline nephropathy.
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Affiliation(s)
- Jiannan Liu
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Jianlin Huang
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Bo Gong
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Songtao Cheng
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Yadong Liu
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China; Department of Urology, Ningbo First Hospital, Zhejiang 315000, China
| | - Yaodong Chen
- Department of Ultrasonic Imaging, The First Affiliated Hospital of Shanxi Medical University, Shanxi 030001, China
| | - Qiang Feng
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Jun Li
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Mingxing Qiu
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Gui Yu
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China.
| | - Yong Liao
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China.
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Ge P, Duan H, Tao C, Niu S, Hu Y, Duan R, Shen A, Sun Y, Sun W. TMAO Promotes NLRP3 Inflammasome Activation of Microglia Aggravating Neurological Injury in Ischemic Stroke Through FTO/IGF2BP2. J Inflamm Res 2023; 16:3699-3714. [PMID: 37663757 PMCID: PMC10473438 DOI: 10.2147/jir.s399480] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 08/19/2023] [Indexed: 09/05/2023] Open
Abstract
Objective Stroke is a kind of cerebrovascular disease with high mortality. TMAO has been shown to aggravate stroke outcomes, but its mechanism remains unclear. Materials and Methods Mice were fed with 0.12% TMAO for 16 weeks. Then, mice were made into MCAO/R models. Neurological score, infarct volume, neuronal damage and markers associated with inflammation were assessed. Since microglia played a crucial role in ischemic stroke, microglia of MCAO/R mice were isolated for high-throughput sequencing to identify the most differentially expressed gene following TMAO treatment. Afterward, the downstream pathways of TMAO were investigated using primary microglia. Results TMAO promoted the release of inflammatory cytokines in the brain of MCAO/R mice and promoted the activation of OGD/R microglial inflammasome, thereby exacerbating ischemic stroke outcomes. FTO/IGF2BP2 inhibited NLRP3 inflammasome activation in OGD/R microglia by downregulating the m6A level of NLRP3. TMAO can inhibit the expression of FTO and IGF2BP2, thus promoting the activation of NLRP3 inflammasome in OGD/R microglia. In conclusion, these results demonstrated that TMAO promotes NLRP3 inflammasome activation of microglia aggravating neurological injury in ischemic stroke through FTO/IGF2BP2. Conclusion Our results demonstrated that TMAO promotes NLRP3 inflammasome activation of microglia aggravating neurological injury in ischemic stroke through FTO/IGF2BP2. These findings explained the molecular mechanism of TMAO aggravating ischemic stroke in detail and provided molecular mechanism for clinical treatment.
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Affiliation(s)
- Pengxin Ge
- Department of Pharmacy, Anhui Provincial Cancer Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230031, People’s Republic of China
| | - Huijie Duan
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China
| | - Chunrong Tao
- Stroke Center and Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People’s Republic of China
| | - Sensen Niu
- Digestive System Department, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, People’s Republic of China
| | - Yiran Hu
- Department of Scientific Research, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People’s Republic of China
| | - Rui Duan
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People’s Republic of China
| | - Aizong Shen
- Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People’s Republic of China
| | - Yancai Sun
- Department of Pharmacy, Anhui Provincial Cancer Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230031, People’s Republic of China
| | - Wen Sun
- Stroke Center and Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People’s Republic of China
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10
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Amorim M, Martins B, Fernandes R. Immune Fingerprint in Diabetes: Ocular Surface and Retinal Inflammation. Int J Mol Sci 2023; 24:9821. [PMID: 37372968 DOI: 10.3390/ijms24129821] [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: 05/09/2023] [Revised: 05/29/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
Diabetes is a prevalent global health issue associated with significant morbidity and mortality. Diabetic retinopathy (DR) is a well-known inflammatory, neurovascular complication of diabetes and a leading cause of preventable blindness in developed countries among working-age adults. However, the ocular surface components of diabetic eyes are also at risk of damage due to uncontrolled diabetes, which is often overlooked. Inflammatory changes in the corneas of diabetic patients indicate that inflammation plays a significant role in diabetic complications, much like in DR. The eye's immune privilege restricts immune and inflammatory responses, and the cornea and retina have a complex network of innate immune cells that maintain immune homeostasis. Nevertheless, low-grade inflammation in diabetes contributes to immune dysregulation. This article aims to provide an overview and discussion of how diabetes affects the ocular immune system's main components, immune-competent cells, and inflammatory mediators. By understanding these effects, potential interventions and treatments may be developed to improve the ocular health of diabetic patients.
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Affiliation(s)
- Madania Amorim
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Beatriz Martins
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-531 Coimbra, Portugal
| | - Rosa Fernandes
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-531 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3004-561 Coimbra, Portugal
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11
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Zhang Y, Tu J, Li Y, Wang Y, Lu L, Wu C, Yu XY, Li Y. Inflammation macrophages contribute to cardiac homeostasis. CARDIOLOGY PLUS 2023. [DOI: 10.1097/cp9.0000000000000035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
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12
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Wang Q, Peng D, Huang B, Men L, Jiang T, Huo S, Wang M, Guo J, Lv J, Lin L. Notopterol Ameliorates Hyperuricemia-Induced Cardiac Dysfunction in Mice. Pharmaceuticals (Basel) 2023; 16:ph16030361. [PMID: 36986461 PMCID: PMC10052463 DOI: 10.3390/ph16030361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/17/2023] [Accepted: 02/18/2023] [Indexed: 03/02/2023] Open
Abstract
Notopterol is a naturally occurring furanocoumarin compound found in the root of Notopterygium incisum. Hyperuricemia involves the activation of chronic inflammation and leads to cardiac damage. Whether notopterol has cardioprotective potential in hyperuricemia mice remains elusive. The hyperuricemic mouse model was constructed by administration of potassium oxonate and adenine every other day for six weeks. Notopterol (20 mg/kg) and allopurinol (10 mg/kg) were given daily as treatment, respectively. The results showed that hyperuricemia dampened heart function and reduced exercise capacity. Notopterol treatment improved exercise capacity and alleviated cardiac dysfunction in hyperuricemic mice. P2X7R and pyroptosis signals were activated both in hyperuricemic mice and in uric acid-stimulated H9c2 cells. Additionally, it was verified that inhibition of P2X7R alleviated pyroptosis and inflammatory signals in uric acid-treated H9c2 cells. Notopterol administration significantly suppressed expression levels of pyroptosis associated proteins and P2X7R in vivo and in vitro. P2X7R overexpression abolished the inhibition effect of notopterol on pyroptosis. Collectively, our findings suggested that P2X7R played a critical role in uric acid-induced NLRP3 inflammatory signals. Notopterol inhibited pyroptosis via inhibiting the P2X7R/NLRP3 signaling pathway under uric acid stimulation. Notopterol might represent a potential therapeutic strategy against pyroptosis and improve cardiac function in hyperuricemic mice.
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Affiliation(s)
- Qian Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Dewei Peng
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Bingyu Huang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Lintong Men
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Tao Jiang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shengqi Huo
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Moran Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Junyi Guo
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jiagao Lv
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Li Lin
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
- Correspondence: or
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13
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Patil P, Doshi G. Deciphering the Role of Pyroptosis Impact on Cardiovascular Diseases. Curr Drug Targets 2023; 24:1166-1183. [PMID: 38164730 DOI: 10.2174/0113894501267496231102114410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 01/03/2024]
Abstract
Pyroptosis has become a noteworthy area of focus in recent years due to its association with inflammatory diseases. Pyroptosis is a type of programmed cell death accompanied by an inflammatory response, and the discovery of the gasdermin family has expanded the study of pyroptosis. The primary characteristics of pyroptosis include cell expansion, membrane penetration, and the ejection of cell contents. In healthy physiology, pyroptosis is an essential part of the host's defence against pathogen infection. Excessive Pyroptosis, however, can lead to unchecked and persistent inflammatory responses, including the emergence of inflammatory diseases. More precisely, gasdermin family members have a role in the creation of membrane holes during pyroptosis, which leads to cell lysis. It is also related to how pro-inflammatory intracellular substances, including IL-1, IL-18, and High mobility group box 1 (HMGB1), are used. Two different signalling pathways, one of which is regulated by caspase-1 and the other by caspase-4/5/11, are the primary causes of pyroptosis. Cardiovascular diseases are often associated with cell death and acute or chronic inflammation, making this area of research particularly relevant. In this review, we first systematically summarize recent findings related to Pyroptosis, exploring its characteristics and the signalling pathway mechanisms, as well as various treatment strategies based on its modulation that has emerged from the studies. Some of these strategies are currently undergoing clinical trials. Additionally, the article elaborates on the scientific evidence indicating the role of Pyroptosis in various cardiovascular diseases. As a whole, this should shed insight into future paths and present innovative ideas for employing Pyroptosis as a strong disease-fighting weapon.
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Affiliation(s)
- Poonam Patil
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, VLM Road, Vile Parle (w), Mumbai, 400056, India
| | - Gaurav Doshi
- Department of Pharmacology, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, VLM Road, Vile Parle (w), Mumbai, 400056, India
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14
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Li L, Zhang Y, Luo Y, Meng X, Pan G, Zhang H, Li Y, Zhang B. The Molecular Basis of the Anti-Inflammatory Property of Astragaloside IV for the Treatment of Diabetes and Its Complications. Drug Des Devel Ther 2023; 17:771-790. [PMID: 36925998 PMCID: PMC10013573 DOI: 10.2147/dddt.s399423] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/03/2023] [Indexed: 03/12/2023] Open
Abstract
Astragali Radix is a significant traditional Chinese medication, and has a long history of clinical application in the treatment of diabetes mellitus (DM) and its complications. AS-IV is an active saponin isolated from it. Modern pharmacological study shows that AS-IV has anti-inflammatory, anti-oxidant and immunomodulatory activities. The popular inflammatory etiology of diabetes suggests that DM is a natural immune and low-grade inflammatory disease. Pharmacological intervention of the inflammatory response may provide promising and alternative approaches for the prevention and treatment of DM and its complications. Therefore, this article focuses on the potential of AS-IV in the treatment of DM from the perspective of an anti-inflammatory molecular basis. AS-IV plays a role by regulating a variety of anti-inflammatory pathways in multiple organs, tissues and target cells throughout the body. The blockade of the NF-κB inflammatory signaling pathway may be the central link of AS-IV's anti-inflammatory effect, resulting in a reduction in the tissue structure and function damage stimulated by inflammatory factors. In addition, AS-IV can delay the onset of DM and its complications by inhibiting inflammation-related oxidative stress, fibrosis and apoptosis signals. In conclusion, AS-IV has therapeutic prospects from the perspective of reducing the inflammation of DM and its complications. An in-depth study on the anti-inflammatory mechanism of AS-IV is of great significance for the effective use of Chinese herbal medicine and the promotion of its status and influence on the world.
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Affiliation(s)
- Lin Li
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Yuwei Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Yudan Luo
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Xianghui Meng
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Guixiang Pan
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300250, People's Republic of China
| | - Han Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Yuhong Li
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Boli Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
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15
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Zhang L, Liu HH, Li F, Yang F, Qian LL, Wang RX. The Role of NLRP3 Inflammasome Signaling on Arrhythmias in Diabetes. J Inflamm Res 2022; 15:6883-6889. [PMID: 36600995 PMCID: PMC9807127 DOI: 10.2147/jir.s390310] [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: 09/18/2022] [Accepted: 12/16/2022] [Indexed: 12/29/2022] Open
Abstract
Diabetes is a significant risk factor for arrhythmias. However, the pathophysiology of diabetes-related arrhythmias still needs to be elucidated, presumably associated with structural and electrical remodeling. There is growing evidence that inflammation and arrhythmias are intimately associated, which has spurred significant interest in exploring the regulatory links in diabetes. Recent research findings have revealed a vital role for the NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome signaling, and facilitated the occurrence of arrhythmias in diabetes, including NLRP3 inflammasome activation by multiple stressors and its downstream cytokines, interleukin-1β (IL-1β) and interleukin-18 (IL-18). This narrative review aims to summarize the complex interaction between NLRP3 inflammasomes signaling and diabetes-related arrhythmias. Articles regarding the role of NLRP3 inflammasome in diabetes-related arrhythmias and relevant mechanisms were selected. Relevant articles were selected from PubMed. The search terms were "NLRP3 inflammasome" and "diabetes" and "arrhythmia". Important references from selected articles were also retrieved. The role of NLRP3 inflammasome signaling in diabetes-induced arrhythmias may provide a new option for the prevention and treatment diabetes-related arrhythmias.
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Affiliation(s)
- Lei Zhang
- Department of Cardiology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, People’s Republic of China
| | - Huan-Huan Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi, People’s Republic of China
| | - Feng Li
- Department of Cardiology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, People’s Republic of China
| | - Fan Yang
- Department of Cardiology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, People’s Republic of China
| | - Ling-Ling Qian
- Department of Cardiology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, People’s Republic of China
| | - Ru-Xing Wang
- Department of Cardiology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, People’s Republic of China,Correspondence: Ru-Xing Wang, Tel +86-510-85351593, Fax +86-510-85350555, Email
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16
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Chen MY, Meng XF, Han YP, Yan JL, Xiao C, Qian LB. Profile of crosstalk between glucose and lipid metabolic disturbance and diabetic cardiomyopathy: Inflammation and oxidative stress. Front Endocrinol (Lausanne) 2022; 13:983713. [PMID: 36187088 PMCID: PMC9521548 DOI: 10.3389/fendo.2022.983713] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
In recent years, the risk, such as hypertension, obesity and diabetes mellitus, of cardiovascular diseases has been increasing explosively with the development of living conditions and the expansion of social psychological pressure. The disturbance of glucose and lipid metabolism contributes to both collapse of myocardial structure and cardiac dysfunction, which ultimately leads to diabetic cardiomyopathy. The pathogenesis of diabetic cardiomyopathy is multifactorial, including inflammatory cascade activation, oxidative/nitrative stress, and the following impaired Ca2+ handling induced by insulin resistance/hyperinsulinemia, hyperglycemia, hyperlipidemia in diabetes. Some key alterations of cellular signaling network, such as translocation of CD36 to sarcolemma, activation of NLRP3 inflammasome, up-regulation of AGE/RAGE system, and disequilibrium of micro-RNA, mediate diabetic oxidative stress/inflammation related myocardial remodeling and ventricular dysfunction in the context of glucose and lipid metabolic disturbance. Here, we summarized the detailed oxidative stress/inflammation network by which the abnormality of glucose and lipid metabolism facilitates diabetic cardiomyopathy.
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Affiliation(s)
| | | | | | | | - Chi Xiao
- School of Basic Medical Sciences & Forensic Medicine, Hangzhou Medical College, Hangzhou, China
| | - Ling-Bo Qian
- School of Basic Medical Sciences & Forensic Medicine, Hangzhou Medical College, Hangzhou, China
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17
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The Role of NLRP3 Inflammasome in Diabetic Cardiomyopathy and Its Therapeutic Implications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3790721. [PMID: 36111168 PMCID: PMC9470324 DOI: 10.1155/2022/3790721] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022]
Abstract
Diabetic cardiomyopathy (DCM) is a serious complication of diabetes mellitus (DM). However, the precise molecular mechanisms remain largely unclear, and it is still a challenging disease to diagnose and treat. The nucleotide-binding oligomerization domain and leucine-rich repeat pyrin 3 domain (NLRP3) inflammasome is a critical part of the innate immune system in the host to defend against endogenous danger and pathogenic microbial infections. Dysregulated NLRP3 inflammasome activation results in the overproduction of cytokines, primarily IL-1β and IL-18, and eventually, inflammatory cell death-pyroptosis. A series of studies have indicated that NLRP3 inflammasome activation participates in the development of DCM, and that corresponding interventions could mitigate disease progression. Accordingly, this narrative review is aimed at briefly summarizing the cell-specific role of the NLRP3 inflammasome in DCM and provides novel insights into developing DCM therapeutic strategies targeting the NLRP3 inflammasome.
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18
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Ilyas A, Wijayasinghe YS, Khan I, El Samaloty NM, Adnan M, Dar TA, Poddar NK, Singh LR, Sharma H, Khan S. Implications of trimethylamine N-oxide (TMAO) and Betaine in Human Health: Beyond Being Osmoprotective Compounds. Front Mol Biosci 2022; 9:964624. [PMID: 36310589 PMCID: PMC9601739 DOI: 10.3389/fmolb.2022.964624] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Osmolytes are naturally occurring small molecular weight organic molecules, which are accumulated in large amounts in all life forms to maintain the stability of cellular proteins and hence preserve their functions during adverse environmental conditions. Trimethylamine N-oxide (TMAO) and N,N,N-trimethylglycine (betaine) are methylamine osmolytes that have been extensively studied for their diverse roles in humans and have demonstrated opposing relations with human health. These osmolytes are obtained from food and synthesized endogenously using dietary constituents like choline and carnitine. Especially, gut microbiota plays a vital role in TMAO synthesis and contributes significantly to plasma TMAO levels. The elevated plasma TMAO has been reported to be correlated with the pathogenesis of numerous human diseases, including cardiovascular disease, heart failure, kidney diseases, metabolic syndrome, etc.; Hence, TMAO has been recognized as a novel biomarker for the detection/prediction of several human diseases. In contrast, betaine acts as a methyl donor in one-carbon metabolism, maintains cellular S-adenosylmethionine levels, and protects the cells from the harmful effects of increased plasma homocysteine. Betaine also demonstrates antioxidant and anti-inflammatory activities and has a promising therapeutic value in several human diseases, including homocystinuria and fatty liver disease. The present review examines the multifarious functions of TMAO and betaine with possible molecular mechanisms towards a better understanding of their emerging and diverging functions with probable implications in the prevention, diagnosis, and treatment of human diseases.
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Affiliation(s)
- Ashal Ilyas
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - Yasanandana Supunsiri Wijayasinghe
- Department of Biochemistry and Clinical Chemistry, Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka,*Correspondence: Yasanandana Supunsiri Wijayasinghe, , Nitesh Kumar Poddar, , , Shahanavaj Khan,
| | - Ilyas Khan
- Department of Mathematics, College of Science Al-Zulfi, Majmaah University, Al-Majmaah, Saudi Arabia
| | - Nourhan M. El Samaloty
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Mohd Adnan
- Department of Biology, College of Science, University of Hail, Hail, Saudi Arabia
| | - Tanveer Ali Dar
- Department of Clinical Biochemistry, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - Nitesh Kumar Poddar
- Department of Biosciences, Manipal University Jaipur, Jaipur, Rajasthan, India,*Correspondence: Yasanandana Supunsiri Wijayasinghe, , Nitesh Kumar Poddar, , , Shahanavaj Khan,
| | - Laishram R. Singh
- Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India
| | - Hemlata Sharma
- Department of Biosciences, Manipal University Jaipur, Jaipur, Rajasthan, India
| | - Shahanavaj Khan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia,Department of Medical Lab Technology, Indian Institute of Health and Technology (IIHT), Saharanpur, Uttar Pradesh, India,*Correspondence: Yasanandana Supunsiri Wijayasinghe, , Nitesh Kumar Poddar, , , Shahanavaj Khan,
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19
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Fan J, Ren M, Adhikari BK, Wang H, He Y. The NLRP3 Inflammasome as a Novel Therapeutic Target for Cardiac Fibrosis. J Inflamm Res 2022; 15:3847-3858. [PMID: 35836721 PMCID: PMC9273832 DOI: 10.2147/jir.s370483] [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: 04/12/2022] [Accepted: 07/01/2022] [Indexed: 11/23/2022] Open
Abstract
Cardiac fibrosis often has adverse cardiovascular effects, including heart failure, sudden death, and malignant arrhythmias. However, there is no targeted therapy for cardiac fibrosis. Inflammation is known to play a crucial role in the disorder, and the NLR pyrin domain-containing-3 (NLRP3) inflammasome is closely associated with innate immunity. Therefore, further understanding the pathophysiological role of the inflammasome in cardiac fibrosis may provide novel strategies for the prevention and treatment of the disorder. The aim of this review was to summarize the present knowledge of NLRP3 inflammasome-related mechanisms underlying cardiac fibrosis and to suggest potential targeted therapy that could be used to treat the condition.
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Affiliation(s)
- Jiwen Fan
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, People's Republic of China
| | - Meng Ren
- Department of Medical Oncology, Jilin Provincial Cancer Hospital, Changchun, People's Republic of China
| | - Binay Kumar Adhikari
- Department of Cardiology, Nepal Armed Police Force (APF) Hospital, Kathmandu, Nepal
| | - Haodong Wang
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, People's Republic of China
| | - Yuquan He
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, People's Republic of China
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20
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Tapia Cáceres F, Gaspari TA, Hossain MA, Samuel CS. Relaxin Inhibits the Cardiac Myofibroblast NLRP3 Inflammasome as Part of Its Anti-Fibrotic Actions via the Angiotensin Type 2 and ATP (P2X7) Receptors. Int J Mol Sci 2022; 23:ijms23137074. [PMID: 35806076 PMCID: PMC9266307 DOI: 10.3390/ijms23137074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 12/18/2022] Open
Abstract
Chronic NLRP3 inflammasome activation can promote fibrosis through its production of interleukin (IL)-1β and IL-18. Conversely, recombinant human relaxin (RLX) can inhibit the pro-fibrotic interactions between IL-1β, IL-18 and transforming growth factor (TGF)-β1. Here, the broader extent by which RLX targeted the myofibroblast NLRP3 inflammasome to mediate its anti-fibrotic effects was elucidated. Primary human cardiac fibroblasts (HCFs), stimulated with TGF-β1 (to promote myofibroblast (HCMF) differentiation), LPS (to prime the NLRP3 inflammasome) and ATP (to activate the NLRP3 inflammasome) (T+L+A) or benzoylbenzoyl-ATP (to activate the ATP receptor; P2X7R) (T+L+Bz), co-expressed relaxin family peptide receptor-1 (RXFP1), the angiotensin II type 2 receptor (AT2R) and P2X7R, and underwent increased protein expression of toll-like receptor (TLR)-4, NLRP3, caspase-1, IL-1β and IL-18. Whilst RLX co-administration to HCMFs significantly prevented the T+L+A- or T+L+Bz-stimulated increase in these end points, the inhibitory effects of RLX were annulled by the pharmacological antagonism of either RXFP1, AT2R, P2X7R, TLR-4, reactive oxygen species (ROS) or caspase-1. The RLX-induced amelioration of left ventricular inflammation, cardiomyocyte hypertrophy and fibrosis in isoproterenol (ISO)-injured mice, was also attenuated by P2X7R antagonism. Thus, the ability of RLX to ameliorate the myofibroblast NLRP3 inflammasome as part of its anti-fibrotic effects, appeared to involve RXFP1, AT2R, P2X7R and the inhibition of TLR-4, ROS and caspase-1.
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Affiliation(s)
- Felipe Tapia Cáceres
- Cardiovascular Disease Program, Monash Biomedicine Discovery Institute and Department of Pharmacology, Monash University, Melbourne, VIC 3800, Australia; (F.T.C.); (T.A.G.)
| | - Tracey A. Gaspari
- Cardiovascular Disease Program, Monash Biomedicine Discovery Institute and Department of Pharmacology, Monash University, Melbourne, VIC 3800, Australia; (F.T.C.); (T.A.G.)
| | - Mohammed Akhter Hossain
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC 3010, Australia;
| | - Chrishan S. Samuel
- Cardiovascular Disease Program, Monash Biomedicine Discovery Institute and Department of Pharmacology, Monash University, Melbourne, VIC 3800, Australia; (F.T.C.); (T.A.G.)
- Department of Biochemistry and Molecular Biology, The University of Melbourne, Melbourne, VIC 3010, Australia
- Correspondence:
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21
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Li Q, Hua X, Li L, Zhou X, Tian Y, Deng Y, Zhang M, Yuan X, Chi W. AIP1 suppresses neovascularization by inhibiting the NOX4-induced NLRP3/NLRP6 imbalance in a murine corneal alkali burn model. Cell Commun Signal 2022; 20:59. [PMID: 35524333 PMCID: PMC9074213 DOI: 10.1186/s12964-022-00877-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/07/2022] [Indexed: 12/05/2022] Open
Abstract
Background Apoptosis signal-regulating kinase 1-interacting protein 1 (AIP1) participates in inflammatory neovascularization induction. NADPH oxidase 4 (NOX4) produces reactive oxygen species (ROS), leading to an imbalance in nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3 (NLRP3) and NLR family pyrin domain containing 6 (NLRP6) expression. The mechanisms of AIP1, NOX4, ROS and inflammasomes in corneal neovascularization were studied herein. Methods C57BL/6 and AIP1-knockout mice were used in this study. The alkali burn procedure was performed on the right eye. Adenovirus encoding AIP1 plus green fluorescence protein (GFP) (Ad-AIP1-GFP) or GFP alone was injected into the right anterior chamber, GLX351322 was applied as a NOX4 inhibitor, and then corneal neovascularization was scored. The expression of related genes was measured by quantitative real-time polymerase chain reaction, western blotting and immunofluorescence staining. 2′,7′-Dichlorofluorescin diacetate staining was used to determine the ROS levels. Results The expression of AIP1 was decreased, while that of cleaved interleukin-1β (clv-IL-1β) and vascular endothelial growth factor A (VEGFa) was increased after alkali burn injury. NOX4 expression was increased, the imbalance in NLRP3/NLRP6 was exacerbated, and corneal neovascularization was increased significantly in AIP1-knockout mice compared with those in C57BL/6 mice after alkali burns. These effects were reversed by AIP1 overexpression. NLRP3/NLRP6 expression was imbalanced after alkali burns. GLX351322 reversed the imbalance in NLRP3/NLRP6 by reducing the ROS levels. This treatment also reduced the expression of clv-IL-1β and VEGFa, suppressing neovascularization. Conclusions AIP1 and NOX4 can regulate corneal inflammation and neovascularization after alkali burn injury. Based on the pathogenesis of corneal neovascularization, these findings are expected to provide new therapeutic strategies for patients. Plain English summary Corneal alkali burn injury is a common type of ocular injury that is difficult to treat in the clinic. The cornea is a clear and avascular tissue. Corneal neovascularization after alkali burn injury is a serious complication; it not only seriously affects the patient’s vision but also is the main reason for failed corneal transplantation. Corneal neovascularization affects approximately 1.4 million patients a year. We show for the first time that AIP1 and NOX4 can regulate corneal inflammation and neovascularization after alkali burns. The expression of AIP1 was decreased, while that of clv-IL-1β and VEGFa was increased after alkali burns. We tried to elucidate the specific molecular mechanisms by which AIP1 regulates corneal neovascularization. NOX4 activation was due to decreased AIP1 expression in murine corneas with alkali burns. NOX4 expression was increased, the imbalance in NLRP3/NLRP6 was exacerbated, and corneal neovascularization was increased significantly in AIP1-knockout mice compared with those in C57BL/6 mice after alkali burns. These effects were reversed by AIP1 overexpression. Additionally, NLRP3/NLRP6 expression was unbalanced, with NLRP3 activation and NLRP6 suppression in the corneal alkali burn murine model. Eye drops containing GLX351322, a NOX4 inhibitor, reversed the imbalance in NLRP3/NLRP6 by reducing ROS expression. This treatment also reduced the expression of clv-IL-1β and VEGFa, reducing neovascularization. Therefore, we provide new gene therapeutic strategies for patients. With the development of neovascularization therapy, we believe that in addition to corneal transplantation, new drug or gene therapies can achieve better results. Video Abstract
Supplementary Information The online version contains supplementary material available at 10.1186/s12964-022-00877-5.
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Affiliation(s)
- Qingyu Li
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, China
| | - Xia Hua
- Tianjin Aier Eye Hospital, Tianjin University, Tianjin, China
| | - Liangpin Li
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, China
| | - Xueyan Zhou
- School of Medicine, Nankai University, Tianjin, China
| | - Ye Tian
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, China
| | - Yang Deng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Min Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Xiaoyong Yuan
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China. .,Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, China.
| | - Wei Chi
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China.
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22
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Liu Y, Xu X, Lei W, Hou Y, Zhang Y, Tang R, Yang Z, Tian Y, Zhu Y, Wang C, Deng C, Zhang S, Yang Y. The NLRP3 inflammasome in fibrosis and aging: The known unknowns. Ageing Res Rev 2022; 79:101638. [PMID: 35525426 DOI: 10.1016/j.arr.2022.101638] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/27/2022] [Accepted: 05/01/2022] [Indexed: 11/28/2022]
Abstract
Aging-related diseases such as cancer, cardiovascular diseases, diabetes, and neurodegenerative diseases are often accompanied by fibrosis. The NLRP3 inflammasome triggers the inflammatory response and subsequently promotes fibrosis through pathogen-associated molecular patterns (PAMPs). In this review, we first introduce the general background and specific mechanism of NLRP3 in fibrosis. Second, we investigate the role of NLRP3 in fibrosis in different organs/tissues. Third, we discuss the relationship between NLRP3 and fibrosis during aging. In summary, this review describes the latest progress on the roles of NLRP3 in fibrosis and aging and reveals the possibility of NLRP3 as an antifibrotic and anti-aging treatment target.
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Affiliation(s)
- Yanqing Liu
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Xuezeng Xu
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Wangrui Lei
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Yuxuan Hou
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Yan Zhang
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Ran Tang
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Zhi Yang
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Ye Tian
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Yanli Zhu
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Changyu Wang
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China
| | - Chao Deng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shaofei Zhang
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China.
| | - Yang Yang
- Department of Cardiology, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Life Sciences and Medicine, Northwest University, Xi'an, China.
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Leysen H, Walter D, Clauwaert L, Hellemans L, van Gastel J, Vasudevan L, Martin B, Maudsley S. The Relaxin-3 Receptor, RXFP3, Is a Modulator of Aging-Related Disease. Int J Mol Sci 2022; 23:4387. [PMID: 35457203 PMCID: PMC9027355 DOI: 10.3390/ijms23084387] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 12/12/2022] Open
Abstract
During the aging process our body becomes less well equipped to deal with cellular stress, resulting in an increase in unrepaired damage. This causes varying degrees of impaired functionality and an increased risk of mortality. One of the most effective anti-aging strategies involves interventions that combine simultaneous glucometabolic support with augmented DNA damage protection/repair. Thus, it seems prudent to develop therapeutic strategies that target this combinatorial approach. Studies have shown that the ADP-ribosylation factor (ARF) GTPase activating protein GIT2 (GIT2) acts as a keystone protein in the aging process. GIT2 can control both DNA repair and glucose metabolism. Through in vivo co-regulation analyses it was found that GIT2 forms a close coexpression-based relationship with the relaxin-3 receptor (RXFP3). Cellular RXFP3 expression is directly affected by DNA damage and oxidative stress. Overexpression or stimulation of this receptor, by its endogenous ligand relaxin 3 (RLN3), can regulate the DNA damage response and repair processes. Interestingly, RLN3 is an insulin-like peptide and has been shown to control multiple disease processes linked to aging mechanisms, e.g., anxiety, depression, memory dysfunction, appetite, and anti-apoptotic mechanisms. Here we discuss the molecular mechanisms underlying the various roles of RXFP3/RLN3 signaling in aging and age-related disorders.
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Affiliation(s)
- Hanne Leysen
- Receptor Biology Laboratory, University of Antwerp, 2610 Wilrijk, Belgium; (H.L.); (D.W.); (L.C.); (L.H.); (J.v.G.)
| | - Deborah Walter
- Receptor Biology Laboratory, University of Antwerp, 2610 Wilrijk, Belgium; (H.L.); (D.W.); (L.C.); (L.H.); (J.v.G.)
| | - Lore Clauwaert
- Receptor Biology Laboratory, University of Antwerp, 2610 Wilrijk, Belgium; (H.L.); (D.W.); (L.C.); (L.H.); (J.v.G.)
| | - Lieselot Hellemans
- Receptor Biology Laboratory, University of Antwerp, 2610 Wilrijk, Belgium; (H.L.); (D.W.); (L.C.); (L.H.); (J.v.G.)
| | - Jaana van Gastel
- Receptor Biology Laboratory, University of Antwerp, 2610 Wilrijk, Belgium; (H.L.); (D.W.); (L.C.); (L.H.); (J.v.G.)
- SGS Belgium, Intercity Business Park, Generaal De Wittelaan 19-A5, 2800 Mechelen, Belgium
| | | | - Bronwen Martin
- Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Belgium;
| | - Stuart Maudsley
- Receptor Biology Laboratory, University of Antwerp, 2610 Wilrijk, Belgium; (H.L.); (D.W.); (L.C.); (L.H.); (J.v.G.)
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Raggi F, Rossi C, Faita F, Distaso M, Kusmic C, Solini A. P2X7 Receptor and Heart Function in a Mouse Model of Systemic Inflammation Due to High Fat Diet. J Inflamm Res 2022; 15:2425-2439. [PMID: 35444452 PMCID: PMC9015053 DOI: 10.2147/jir.s356038] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 03/09/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Low-grade inflammation contributes to heart failure in obesity or type 2 diabetes mellitus. The P2X7 receptor (P2X7R) is a key regulator of several pro-inflammatory responses in multiple tissues and organs; however, its involvement in the onset of heart dysfunction remains unclear. The study evaluated the role of P2X7R as a cardiac function regulator in C57BL/6J wild-type (WT) and P2X7R knockout (KO) mice by inducing systemic inflammation with high fat diet (HFD). Methods Specific parameters of systolic and diastolic function and heart morphology were measured in vivo before animal sacrifice by high-frequency ultrasonographic analysis. Gene and protein expression of cardiac biomarkers associated with inflammatory-oxidative pathways were evaluated by real-time PCR and Western Blotting. Results P2X7R-mediated up-regulation of the NLRP3-caspase-1 complex, increased expression of key oxidative stress (NOS-2, TNFα), and chemotactic (MCP-1) mediators were revealed in WT-HFD animals. In KO-HFD mice, such inflammatory-oxidative pathway was silent. Nevertheless, HFD induced in vivo a clear alteration of diastolic pattern (E/A: p < 0.03 vs WT-HFD) and a cardiac morphologic remodelling (left ventricular mass: p < 0.05 vs WT-HFD) only in P2X7R KO animals. Surprisingly, the transcriptional and protein expression of IL-1β and IL-6, usually regulated through P2X7R activation, were significantly higher in KO-HFD than in WT-HFD mice (both p < 0.05). Furthermore, an up-regulation of miR-214 and a down-regulation of miR-126 in heart of HFD-KO mice were observed, suggesting a link between such epigenetic dysregulation and cytokine overexpression as a potential pathophysiologic mechanism concurring to the progressive cardiac dysfunction. Conclusion These findings seem to suggest a cardioprotective role of P2X7R toward this tissue-specific inflammatory damage, likely through tissue homeostasis and organ functionality preservation.
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Affiliation(s)
- Francesco Raggi
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Chiara Rossi
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Francesco Faita
- Institute of Clinical Physiology, Italian National Research Council, Pisa, Italy
| | - Mariarosaria Distaso
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Claudia Kusmic
- Institute of Clinical Physiology, Italian National Research Council, Pisa, Italy
| | - Anna Solini
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
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25
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Weng L, Li L, Zhao K, Xu T, Mao Y, Shu H, Chen X, Chen J, Wu J, Guo X, Tu J, Zhang D, Sun W, Kong X. Non-Invasive Local Acoustic Therapy Ameliorates Diabetic Heart Fibrosis by Suppressing ACE-Mediated Oxidative Stress and Inflammation in Cardiac Fibroblasts. Cardiovasc Drugs Ther 2022; 36:413-424. [DOI: 10.1007/s10557-021-07297-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/18/2021] [Indexed: 11/03/2022]
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26
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Ikeda T, Nakamura K, Kida T, Oku H. Possible roles of anti-type II collagen antibody and innate immunity in the development and progression of diabetic retinopathy. Graefes Arch Clin Exp Ophthalmol 2022; 260:387-403. [PMID: 34379187 PMCID: PMC8786754 DOI: 10.1007/s00417-021-05342-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 07/19/2021] [Accepted: 07/24/2021] [Indexed: 11/08/2022] Open
Abstract
The pathogenesis of both diabetic retinopathy (DR) and rheumatoid arthritis (RA) has recently been considered to involve autoimmunity. Serum and synovial fluid levels of anti-type II collagen antibodies increase early after the onset of RA, thus inducing immune responses and subsequent hydrarthrosis and angiogenesis, which resemble diabetic macular edema and proliferative DR (PDR), respectively. We previously reported that DR is also associated with increased serum levels of anti-type II collagen antibodies. Retinal hypoxia in DR may induce pericytes to express type II collagen, resulting in autoantibody production against type II collagen. As the result of blood-retinal barrier disruption, anti-type II collagen antibodies in the serum come into contact with type II collagen around the retinal vessels. A continued loss of pericytes and type II collagen around the retinal vessels may result in a shift of the immune reaction site from the retina to the vitreous. It has been reported that anti-inflammatory M2 macrophages increased in the vitreous of PDR patients, accompanied by the activation of the NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome, a key regulator of innate immunity. M2 macrophages promote angiogenesis and fibrosis, which might be exacerbated and prolonged by dysregulated innate immunity.
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Affiliation(s)
- Tsunehiko Ikeda
- Department of Ophthalmology, Osaka Medical and Pharmaceutical University, Takatsuki City, Osaka, Japan.
- Department of Ophthalmology, Osaka Kaisei Hospital, 1-6-10 Miyahara Yodogawa-ku, Osaka City, Osaka, Japan.
| | | | - Teruyo Kida
- Department of Ophthalmology, Osaka Medical and Pharmaceutical University, Takatsuki City, Osaka, Japan
| | - Hidehiro Oku
- Department of Ophthalmology, Osaka Medical and Pharmaceutical University, Takatsuki City, Osaka, Japan
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Li X, Xiao GY, Guo T, Song YJ, Li QM. Potential therapeutic role of pyroptosis mediated by the NLRP3 inflammasome in type 2 diabetes and its complications. Front Endocrinol (Lausanne) 2022; 13:986565. [PMID: 36387904 PMCID: PMC9646639 DOI: 10.3389/fendo.2022.986565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/13/2022] [Indexed: 11/25/2022] Open
Abstract
As a new way of programmed cell death, pyroptosis plays a vital role in many diseases. In recent years, the relationship between pyroptosis and type 2 diabetes (T2D) has received increasing attention. Although the current treatment options for T2D are abundant, the occurrence and development of T2D appear to continue, and the poor prognosis and high mortality of patients with T2D remain a considerable burden in the global health system. Numerous studies have shown that pyroptosis mediated by the NLRP3 inflammasome can affect the progression of T2D and its complications; targeting the NLRP3 inflammasome has potential therapeutic effects. In this review, we described the molecular mechanism of pyroptosis more comprehensively, discussed the most updated progress of pyroptosis mediated by NLRP3 inflammasome in T2D and its complications, and listed some drugs and agents with potential anti-pyroptosis effects. Based on the available evidence, exploring more mechanisms of the NLRP3 inflammasome pathway may bring more options and benefits for preventing and treating T2D and drug development.
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28
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Changes in microRNA expression profiles in diabetic cardiomyopathy rats following H3 relaxin treatment. J Cardiovasc Pharmacol 2021; 79:530-538. [PMID: 34983906 DOI: 10.1097/fjc.0000000000001211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 12/06/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT MicroRNAs (miRNAs) are noncoding RNAs that play an important role in the mechanisms of diabetic cardiomyopathy (DCM); however, whether human recombinant relaxin-3 (H3 relaxin) inhibits myocardial injury in DCM rats and the underlying mechanisms involving miRNAs remain unknown. miRNA expression profiles were detected using miRNA microarray and bioinformatics analyses of myocardial tissues from control, DCM, and H3 relaxin-administered DCM groups, and the regulatory mechanisms of the miRNAs were investigated. A total of five miRNAs were downregulated in the myocardial tissues of DCM rats and upregulated in H3 relaxin-treated DCM rats, and one miRNA (miRNA let-7d-3p) was increased in the myocardial tissue of DCM rats, and decreased in H3 relaxin-treated DCM rats as revealed by miRNA microarray and validated by real-time PCR. Important signaling pathways were found to be triggered by the differentially expressed miRNAs, including metabolism, cancer, Rap1, PI3K-Akt, and MAPK signaling pathways. The study revealed that H3 relaxin improved glucose uptake in DCM rats, potentially via regulation of miRNA let-7d-3p.
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NLRP3 Inflammasome in Diabetic Cardiomyopathy and Exercise Intervention. Int J Mol Sci 2021; 22:ijms222413228. [PMID: 34948026 PMCID: PMC8707657 DOI: 10.3390/ijms222413228] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/24/2021] [Accepted: 12/06/2021] [Indexed: 12/12/2022] Open
Abstract
Diabetic cardiomyopathy (DCM), as a common complication of diabetes, is characterized by chronic low-grade inflammation. The NLRP3 inflammasome is a key sensor mediating innate immune and inflammatory responses. However, the mechanisms initiating and promoting NLRP3 inflammasome activation in DCM is largely unexplored. The aim of the present review is to describe the link between NLRP3 inflammasome and DCM, and to provide evidence highlighting the importance of exercise training in DCM intervention. Collectively, this evidence suggests that DCM is an inflammatory disease aggravated by NLRP3 inflammasome-mediated release of IL-1β and IL-18. In addition, chronic exercise intervention is an effective preventive and therapeutic method to alleviate DCM via modulating the NLRP3 inflammasome.
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Xu J, Cai S, Zhao J, Xu K, Ji H, Wu C, Xiao J, Wu Y. Advances in the Relationship Between Pyroptosis and Diabetic Neuropathy. Front Cell Dev Biol 2021; 9:753660. [PMID: 34712670 PMCID: PMC8545826 DOI: 10.3389/fcell.2021.753660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/14/2021] [Indexed: 12/28/2022] Open
Abstract
Pyroptosis is a novel programmed cell death process that promotes the release of interleukin-1β (IL-1β) and interleukin-18 (IL-18) by activating inflammasomes and gasdermin D (GSDMD), leading to cell swelling and rupture. Pyroptosis is involved in the regulation of the occurrence and development of cardiovascular and cerebrovascular diseases, tumors, and nerve injury. Diabetes is a metabolic disorder characterized by long-term hyperglycemia, insulin resistance, and chronic inflammation. The people have paid more and more attention to the relationship between pyroptosis, diabetes, and its complications, especially its important regulatory significance in diabetic neurological diseases, such as diabetic encephalopathy (DE) and diabetic peripheral neuropathy (DPN). This article will give an in-depth overview of the relationship between pyroptosis, diabetes, and its related neuropathy, and discuss the regulatory pathway and significance of pyroptosis in diabetes-associated neuropathy.
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Affiliation(s)
- Jingyu Xu
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Shufang Cai
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Jiaxin Zhao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Ke Xu
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Hao Ji
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Chengbiao Wu
- Clinical Research Center, Affiliated Xiangshan Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jian Xiao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Yanqing Wu
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
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Liu X, Liu H, Lu X, Zhao S. N-acetylcysteine alleviates ocular surface damage in STZ-induced diabetic mice by inhibiting the ROS/NLRP3/Caspase-1/IL-1β signaling pathway. Exp Eye Res 2021; 209:108654. [PMID: 34102208 DOI: 10.1016/j.exer.2021.108654] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 05/19/2021] [Accepted: 06/01/2021] [Indexed: 02/06/2023]
Abstract
Diabetes mellitus (DM) induces damage to the ocular surface, which leads to vision decline. In the current study, we investigated whether N-acetylcysteine (NAC) plays a protective role in diabetes-induced ocular surface damage. The diabetic mice model was treated with 0.3% NAC topically. Corneal epithelial integrity, tear volume and corneal sensitivity were examined by sodium fluorescein staining, phenol red cotton thread and esthesiometer respectively. The level of reactive oxygen species (ROS) was measured with 2',7-dichlorofluorescein diacetate. The expression of NLRP3, IL-1β and caspase-1 were evaluated by RT-PCR, western blot and immunostaining. The level of SOD1 was assessed by RT-PCR. We found that the expression of NLRP3, IL-1β and caspase-1 were elevated in diabetic cornea and conjunctiva. Treatment with NAC improved corneal epithelial integrity, increased tear production and corneal sensitivity in diabetic mice. Moreover, NAC markedly attenuated ROS accumulation and decreased NLRP3, IL-1β and caspase-1 levels in diabetic cornea and conjunctiva. These results suggest that NAC improves ocular surface damage in STZ-induced diabetic mice, which may be related to the inhibition of the ROS/NLRP3/Caspase-1/IL-1β signaling pathway.
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Affiliation(s)
- Xuemei Liu
- Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Hui Liu
- Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xiaoxiao Lu
- Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Shaozhen Zhao
- Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China.
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Zhou J, Zhou Z, Liu X, Yin HY, Tang Y, Cao X. P2X7 Receptor-Mediated Inflammation in Cardiovascular Disease. Front Pharmacol 2021; 12:654425. [PMID: 33995071 PMCID: PMC8117356 DOI: 10.3389/fphar.2021.654425] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/09/2021] [Indexed: 02/05/2023] Open
Abstract
Purinergic P2X7 receptor, a nonselective cation channel, is highly expressed in immune cells as well as cardiac smooth muscle cells and endothelial cells. Its activation exhibits to mediate nucleotide-binding domain (NOD)-like receptor protein 3 (NLRP3) inflammasome activation, resulting in the release of interleukin-1 beta (IL-1β) and interleukin-18 (IL-18), and pyroptosis, thus triggering inflammatory response. These pathological mechanisms lead to the deterioration of various cardiovascular diseases, including atherosclerosis, arrhythmia, myocardial infarction, pulmonary vascular remodeling, and cardiac fibrosis. All these worsening cardiac phenotypes are proven to be attenuated after the P2X7 receptor inhibition in experimental studies. The present review aimed to summarize key aspects of P2X7 receptor-mediated inflammation and pyroptosis in cardiovascular diseases. The main focus is on the evidence addressing the involvement of the P2X7 receptor in the inflammatory responses to the occurrence and development of cardiovascular disease and therapeutic interventions.
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Affiliation(s)
- Junteng Zhou
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Zhichao Zhou
- Division of Cardiology, Department of Medicine, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Xiaojing Liu
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Cardiovascular Diseases, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Hai-Yan Yin
- School of Acupuncture and Tuina and International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Acupuncture and Chronobiology Key Laboratory of Sichuan Province, Chengdu, China
| | - Yong Tang
- School of Acupuncture and Tuina and International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Acupuncture and Chronobiology Key Laboratory of Sichuan Province, Chengdu, China
| | - Xin Cao
- School of Acupuncture and Tuina and International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Acupuncture and Chronobiology Key Laboratory of Sichuan Province, Chengdu, China
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Li Y, Wu Q, Li L, Chen F, Bao J, Li W. Decellularization of porcine whole lung to obtain a clinical-scale bioengineered scaffold. J Biomed Mater Res A 2021; 109:1623-1632. [PMID: 33682365 DOI: 10.1002/jbm.a.37158] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 02/02/2021] [Accepted: 02/19/2021] [Indexed: 02/05/2023]
Abstract
Whole-organ engineering is emerging as an alternative source for xenotransplantation in end-stage diseases. Utilization of decellularized whole lung scaffolds created by detergent perfusion is an effective strategy for organ replacement. In the current study, we attempted to decellularize porcine whole lungs to generate an optimal and reproducible decellularized matrix for future clinical use. Porcine whole lungs were decellularized via perfusion of various detergents (sodium dodecyl sulfate (SDS)/Triton X-100, sodium lauryl ether sulfate (SLES)/Triton X-100, dextrose/SDS/Triton X-100 and dextrose/SLES/Triton X-100) through the pulmonary artery and bronchus of the lung. The decellularized scaffolds were evaluated for decellularization efficiency, extracellular matrix (ECM) component preservation, xenoantigen removal and compatibility. The resulting lung scaffolds obtained from treatment with the dextrose/SLES/Triton X-100 cocktail showed minimal residual cellular components and xenoantigens, including DNA and protein, and good preservation of ECM composition. Evaluation of the porcine lung ECM by specific staining and immunofluorescence confirmed that the three-dimensional ultrastructure of the ECM was noticeably preserved in the SLES-treated groups. In addition, the decellularized lung scaffolds originating from the dextrose/SLES/Triton X-100 cocktail supported cell adhesion and growth. In summary, the novel detergent SLES alleviated the damage to retain a better-preserved ECM than SDS. Sequential Triton X-100 perfusion eliminated SLES. Moreover, performing dextrose perfusion in advance further protected scaffold components, especially collagen. We developed an optimal dextrose/SLES/Triton X-100 cocktail method that can be used for the decellularization of porcine whole lung to obtain a clinical-scale bioengineered scaffold.
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Affiliation(s)
- Yi Li
- Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qiong Wu
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Li Li
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Fei Chen
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ji Bao
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Weimin Li
- Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
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Du JK, Yu Q, Liu YJ, Du SF, Huang LY, Xu DH, Ni X, Zhu XY. A novel role of kallikrein-related peptidase 8 in the pathogenesis of diabetic cardiac fibrosis. Am J Cancer Res 2021; 11:4207-4231. [PMID: 33754057 PMCID: PMC7977470 DOI: 10.7150/thno.48530] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 01/13/2021] [Indexed: 02/06/2023] Open
Abstract
Rationale: Among all the diabetic complications, diabetic cardiomyopathy, which is characterized by myocyte loss and myocardial fibrosis, is the leading cause of mortality and morbidity in diabetic patients. Tissue kallikrein-related peptidases (KLKs) are secreted serine proteases, that have distinct and overlapping roles in the pathogenesis of cardiovascular diseases. However, whether KLKs are involved in the development of diabetic cardiomyopathy remains unknown.The present study aimed to determine the role of a specific KLK in the initiation of endothelial-to-mesenchymal transition (EndMT) during the pathogenesis of diabetic cardiomyopathy. Methods and Results-By screening gene expression profiles of KLKs, it was found that KLK8 was highly induced in the myocardium of mice with streptozotocin-induced diabetes. KLK8 deficiency attenuated diabetic cardiac fibrosis, and rescued the impaired cardiac function in diabetic mice. Small interfering RNA (siRNA)-mediated KLK8 knockdown significantly attenuated high glucose-induced endothelial damage and EndMT in human coronary artery endothelial cells (HCAECs). Diabetes-induced endothelial injury and cardiac EndMT were significantly alleviated in KLK8-deficient mice. In addition, transgenic overexpression of KLK8 led to interstitial and perivascular cardiac fibrosis, endothelial injury and EndMT in the heart. Adenovirus-mediated overexpression of KLK8 (Ad-KLK8) resulted in increases in endothelial cell damage, permeability and transforming growth factor (TGF)-β1 release in HCAECs. KLK8 overexpression also induced EndMT in HCAECs, which was alleviated by a TGF-β1-neutralizing antibody. A specificity protein-1 (Sp-1) consensus site was identified in the human KLK8 promoter and was found to mediate the high glucose-induced KLK8 expression. Mechanistically, it was identified that the vascular endothelial (VE)-cadherin/plakoglobin complex may associate with KLK8 in HCAECs. KLK8 cleaved the VE-cadherin extracellular domain, thus promoting plakoglobin nuclear translocation. Plakoglobin was required for KLK8-induced EndMT by cooperating with p53. KLK8 overexpression led to plakoglobin-dependent association of p53 with hypoxia inducible factor (HIF)-1α, which further enhanced the transactivation effect of HIF-1α on the TGF-β1 promoter. KLK8 also induced the binding of p53 with Smad3, subsequently promoting pro-EndMT reprogramming via the TGF-β1/Smad signaling pathway in HCAECs. The in vitro and in vivo findings further demonstrated that high glucose may promote plakoglobin-dependent cooperation of p53 with HIF-1α and Smad3, subsequently increasing the expression of TGF-β1 and the pro-EndMT target genes of the TGF-β1/Smad signaling pathway in a KLK8-dependent manner. Conclusions: The present findings uncovered a novel pro-EndMT mechanism during the pathogenesis of diabetic cardiac fibrosis via the upregulation of KLK8, and may contribute to the development of future KLK8-based therapeutic strategies for diabetic cardiomyopathy.
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Yang K, Liu J, Zhang X, Ren Z, Gao L, Wang Y, Lin W, Ma X, Hao M, Kuang H. H3 Relaxin Alleviates Migration, Apoptosis and Pyroptosis Through P2X7R-Mediated Nucleotide Binding Oligomerization Domain-Like Receptor Protein 3 Inflammasome Activation in Retinopathy Induced by Hyperglycemia. Front Pharmacol 2020; 11:603689. [PMID: 33584279 PMCID: PMC7873867 DOI: 10.3389/fphar.2020.603689] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 10/16/2020] [Indexed: 12/11/2022] Open
Abstract
Introduction: P2X7R excitation-interrelated NLRP3 inflammasome activation induced by high glucose contributes to the pathogenesis of diabetic retinopathy (DR). Relaxin-3 is a bioactive peptide with a structure similar to insulin, which has been reported to be effective in diabetic cardiomyopathy models in vivo and in vitro. However, it is not known whether relaxin-3 has a beneficial impact on DR, and the underlying mechanisms of the effect are also remain unknown. Methods and Results: The retinas of male streptozotocin (STZ)-induced diabetic Sprague-Dawley (SD) rats were characterized. Human retinal microvascular endothelial cells (HRMECs) were used to evaluate the anti-inflammatory, antiapoptotic, antipyroptotic and anti-migration effects of H3 relaxin by transmission electron microscopy, wound-healing assay, transwell assay, flow cytometry, cytokine assays and western-blot analysis. After H3 relaxin treatment, changes of the ultrastructure and expression of NLRP3 inflammasome related proteins in the retinas of rats were compared with those in the diabetic group. In vitro, H3 relaxin played a beneficial role that decreased cell inflammation, apoptosis, pyroptosis and migration stimulated by advanced glycation end products (AGEs). Moreover, inhibition of P2X7R and NLRP3 inflammasome activation decreased NLRP3 inflammasome-mediated injury that similar to the effects of H3 relaxin. H3 relaxin suppressed the stimulation of apoptosis, pyroptosis and migration of HRMECs in response to AGEs mediated by P2X7R activation of the NLRP3 inflammasome. Conclusion: Our findings provide new insights into the mechanisms of the inhibitory effect of H3 relaxin on AGE-induced retinal injury, including migration, apoptosis and pyroptosis, mediated by P2X7R-dependent activation of the NLRP3 inflammasome in HRMECs.
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Affiliation(s)
- Kelaier Yang
- The Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiannan Liu
- The Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaohui Zhang
- The Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ziqi Ren
- The Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lei Gao
- The Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ying Wang
- The Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wenjian Lin
- The Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xuefei Ma
- The Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ming Hao
- The Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongyu Kuang
- The Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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Protection of Sacubitril/Valsartan against Pathological Cardiac Remodeling by Inhibiting the NLRP3 Inflammasome after Relief of Pressure Overload in Mice. Cardiovasc Drugs Ther 2020; 34:629-640. [PMID: 32444995 PMCID: PMC7497317 DOI: 10.1007/s10557-020-06995-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background/aims The persistent existence of pathological cardiac remodeling, resulting from aortic stenosis, is related to poor clinical prognosis after successful transcatheter aortic valve replacement (TAVR). Sacubitril/valsartan (Sac/Val), comprising an angiotensin receptor blocker and a neprilysin inhibitor, has been demonstrated to have a beneficial effect against pathological cardiac remodeling, including cardiac fibrosis and inflammation in heart failure. The aim of this study was to determine whether Sac/Val exerts a cardioprotective effect after pressure unloading in mice. Methods and results Male C57BL/6 J mice were subjected to debanding (DB) surgery after 8 weeks (wk) of aortic banding (AB). Cardiac function was assessed by echocardiography, which indicated a protective effect of Sac/Val after DB. After treatment with Sac/Val post DB, decreased heart weight and myocardial cell size were observed in mouse hearts. In addition, histological analysis, immunofluorescence, and western blot results showed that Sac/Val attenuated cardiac fibrosis and inflammation after DB. Finally, our data indicated that Sac/Val treatment could significantly suppress NF-κB signaling and NLRP3 inflammasome activation in mice after relief of pressure overload. Conclusion Sac/Val exerted its beneficial effects to prevent maladaptive cardiac fibrosis and dysfunction in mice following pressure unloading, which was at least partly due to the inhibition of NLRP3 inflammasome activation. Electronic supplementary material The online version of this article (10.1007/s10557-020-06995-x) contains supplementary material, which is available to authorized users.
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Liu J, Yang K, Jin Y, Liu Y, Chen Y, Zhang X, Yu S, Song E, Chen S, Zhang J, Jing G, An R. H3 relaxin protects against calcium oxalate crystal-induced renal inflammatory pyroptosis. Cell Prolif 2020; 53:e12902. [PMID: 32945585 PMCID: PMC7574868 DOI: 10.1111/cpr.12902] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES Calcium oxalate (CaOx) crystals can activate inflammatory cytokines by triggering inflammasomes, which cause damage to the adhered epithelium, a dysfunctional microenvironment and even renal failure. However, a comprehensive and in-depth understanding of the mechanisms underlying the effects of these crystals on damage and cytokine function in renal tubular epithelial cells (TECs) remains limited and to be explored. MATERIALS AND METHODS We detected the pyroptosis of TECs induced after exposure to CaOx crystals and demonstrated the significance of cytokine activation in the subsequent inflammatory processes through a proteomic study. We then conducted animal and cell experiments to verify relevant mechanisms through morphological, protein, histological and biochemical approaches. Human serum samples were further tested to help explain the pathophysiological mechanism of H3 relaxin. RESULTS We verified that crystal-induced extracellular adenosine triphosphate (ATP) upregulation via the membrane purinergic 2X7 receptor (P2X7 R) promotes ROS generation and thereby activates NLRP3 inflammasome-mediated interleukin-1β/18 maturation and gasdermin D cleavage. Human recombinant relaxin-3 (H3 relaxin) can act on the transmembrane receptor RXFP1 to produce cAMP and subsequently improves crystal-derived damage via ATP consumption. Additionally, endogenous relaxin-3 was found to be elevated in patients with renal calculus and can thus serve as a biomarker. CONCLUSIONS Our results provide previously unidentified mechanistic insights into CaOx crystal-induced inflammatory pyroptotic damage and H3 relaxin-mediated anti-inflammatory protection and thus suggest a series of potential therapeutic targets and methods for but not limited to nephrocalcinosis.
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Affiliation(s)
- Jiannan Liu
- Department of UrologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
| | - Kelaier Yang
- Department of EndocrinologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
| | - Yinshan Jin
- Department of UrologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
| | - Yadong Liu
- Department of UrologyNingbo First HospitalZhejiangChina
| | - Yaodong Chen
- Department of Ultrasonic ImagingThe First Affiliated Hospital of Shanxi Medical UniversityShanxiChina
| | - Xiaohui Zhang
- Department of CardiologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
| | - Shiliang Yu
- Department of UrologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
| | - Erlin Song
- Department of UrologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
| | - Song Chen
- Department of UrologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
| | - Jingbo Zhang
- Department of UrologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
| | - Guanhua Jing
- Department of UrologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
| | - Ruihua An
- Department of UrologyThe First Affiliated Hospital of Harbin Medical UniversityHeilongjiangChina
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Liu C, Hu T, Cai Z, Xie Q, Yuan Y, Li N, Xie S, Yao Q, Zhao J, Wu QQ, Tang Q. Nucleotide-Binding Oligomerization Domain-Like Receptor 3 Deficiency Attenuated Isoproterenol-Induced Cardiac Fibrosis via Reactive Oxygen Species/High Mobility Group Box 1 Protein Axis. Front Cell Dev Biol 2020; 8:713. [PMID: 32850832 PMCID: PMC7431462 DOI: 10.3389/fcell.2020.00713] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 07/13/2020] [Indexed: 01/05/2023] Open
Abstract
Nucleotide-binding oligomerization domain-like receptor 3 (NLRP3) is involved in fibrosis of multiple organs, such as kidney, liver, lung, and the like. However, the role of NLRP3 in cardiac fibrosis is still controversial and remains unclear. The study aims to investigate the role of NLRP3 on cardiac fibrosis induced by isoproterenol (ISO). In vivo, NLRP3 knockout and wild-type mice were subcutaneously injected with ISO to induce the cardiac fibrosis model. The results showed that NLRP3 deficiency alleviated the cardiac fibrosis and inflammation induced by ISO. In vitro, neonatal rat ventricular myocytes (NRVMs) and primary adult mouse cardiac fibroblasts of NLRP3 knockout and wild-type mice were isolated and challenged with ISO. Adenovirus (Ad-) NLRP3 and small interfering RNAs targeting NLRP3 were used to transfect NRVMs to overexpress or knockdown NLRP3. We found that NLRP3 could regulate high-mobility group box 1 protein (HMGB1) secretion via reactive oxygen species production in NRVMs and the HMGB1 secreted by NRVMs promoted the activation and proliferation of cardiac fibroblasts. Thus, we concluded that the NLRP3/reactive oxygen species/HMGB1 pathway could be the underlying mechanism of ISO-induced cardiac fibrosis.
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Affiliation(s)
- Chen Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Tongtong Hu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Zhulan Cai
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Qingwen Xie
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Yuan Yuan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Ning Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Saiyang Xie
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Qi Yao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Jinhua Zhao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Qing Qing Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Qizhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
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Wang Q, Wu J, Zeng Y, Chen K, Wang C, Yang S, Sun N, Chen H, Duan K, Zeng G. Pyroptosis: A pro-inflammatory type of cell death in cardiovascular disease. Clin Chim Acta 2020; 510:62-72. [PMID: 32622968 DOI: 10.1016/j.cca.2020.06.044] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/19/2020] [Accepted: 06/26/2020] [Indexed: 01/12/2023]
Abstract
Pyroptosis is a pro-inflammatory type of regulated cell death (RCD) characterized by gasdermin D (GSDMD)-mediated membrane pore formation, cell swelling and rapid lysis, followed by the massive release of pro-inflammatory mediators such as interleukin-1β and interleukin-18. There are two main pathways of pyroptosis: the caspase-1-mediated canonical pathway and the caspase-4/5/11-mediated noncanonical pathway. However, the caspase-3-gasdermin E (GSDME) pathway and caspase-8-GSDMD pathway also induce pyroptosis. Pyroptosis can not only cause local inflammation but also lead to amplification of the inflammatory response. Recent studies have suggested that pyroptosis is closely related with cardiovascular disease (CVD); for example, in atherosclerosis, myocardial infarction, ischemia-reperfusion injury, heart failure, coronary calcification and aortic aneurysm, study results have promoted the development of inhibitors targeting the components related to pyroptosis, and some agents have been clinically proven to have cardiovascular benefits. In this review, we summarize emerging evidence to discuss the progressive understanding of pyroptosis and the pathways, effect and effectors of pyroptosis, as well as the role of pyroptosis in CVD. Additionally, we summarize pyroptosis-related pathway inhibitors and classic cardiovascular drugs targeting pyroptosis.
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Affiliation(s)
- Qun Wang
- Department of Cardiovascular Medicine, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, the Second Affiliated Hospital of University of South China, 421001 Hunan Province, China
| | - Jianfeng Wu
- Department of Cardiovascular Medicine, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, the Second Affiliated Hospital of University of South China, 421001 Hunan Province, China
| | - Yicheng Zeng
- Hengyang Medical College, University of South China, 421001 Hunan Province, China
| | - Kong Chen
- Department of Cardiovascular Medicine, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, the Second Affiliated Hospital of University of South China, 421001 Hunan Province, China
| | - Chuangxin Wang
- Department of Cardiovascular Medicine, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, the Second Affiliated Hospital of University of South China, 421001 Hunan Province, China
| | - Shiqi Yang
- Department of Cardiovascular Medicine, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, the Second Affiliated Hospital of University of South China, 421001 Hunan Province, China
| | - Nisi Sun
- Department of Cardiovascular Medicine, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, the Second Affiliated Hospital of University of South China, 421001 Hunan Province, China
| | - Hao Chen
- Department of Cardiovascular Medicine, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, the Second Affiliated Hospital of University of South China, 421001 Hunan Province, China
| | - Kang Duan
- Department of Cardiovascular Medicine, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, the Second Affiliated Hospital of University of South China, 421001 Hunan Province, China
| | - Gaofeng Zeng
- Department of Cardiovascular Medicine, Key Laboratory of Heart Failure Prevention & Treatment of Hengyang, the Second Affiliated Hospital of University of South China, 421001 Hunan Province, China.
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Xie Y, Huang Y, Ling X, Qin H, Wang M, Luo B. Chemerin/CMKLR1 Axis Promotes Inflammation and Pyroptosis by Activating NLRP3 Inflammasome in Diabetic Cardiomyopathy Rat. Front Physiol 2020; 11:381. [PMID: 32390873 PMCID: PMC7191320 DOI: 10.3389/fphys.2020.00381] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 03/30/2020] [Indexed: 12/13/2022] Open
Abstract
Chemerin and its receptor CMKLR1 (a G-protein-coupled receptor) are inducers of inflammation, and play an important role in diabetic cardiomyopathy (DCM). In this study, we investigated the role of the chemerin/CMKLR1 axis in mediating inflammation and cell death in DCM. Sprague–Dawley rats, treated with a high-fat diet and low-dose of streptozotocin, were used as a DCM model. CMKLR1 expression was knocked down by siRNA (CMKLR1-siRNA) to evaluate the role of CMKLR1 in DCM. Chemerin-treated H9c2 cells were used to investigate the factors acting downstream of the chemerin/CMKLR1 axis. LDH release and EthD-III staining were used to measure the ratio of cell death in vitro. CMKLR1-siRNA and siRNA against nucleotide-binding oligomerization domain-like receptors 3 (NLRP3-siRNA) were used to explore the mechanism underlying chemerin-induced inflammation and cell death. The results showed that the expression of chemerin, CMKLR1, NLRP3, pro-caspase-1, activated caspase-1, and mature IL-1β was increased in the DCM model rat. Myocardium of DCM model rats exhibited fibrosis, hypertrophy, a disorganized ultrastructure, and impaired function. Pyroptosis was observed in vivo and in vitro. Silencing of CMKLR1 in vivo attenuated the expression of NLRP3 and activated caspase-1 and IL-1β. CMKLR1-siRNA treatment attenuated cardiac inflammation, fibrosis, hypertrophy, and pyroptosis, and improved cardiac function in vivo. Silencing of either CMKLR1 or NLRP3 suppressed the levels of activated caspase-1, IL-1β, and pyroptosis; however, silencing of both CMKLR1 and NLRP3 further decreased the levels of mature IL-1β and pyroptosis. Overall, the results showed that the chemerin/CMKLR1 axis contributed to the development of DCM and that the NLRP3 inflammasome mediated the chemerin/CMLR1-induced inflammation and pyroptosis. These data indicate that silencing of the CMKLR1 gene might exert a protective effect against DCM.
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Affiliation(s)
- Yebin Xie
- Department of Geriatric Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yu Huang
- Department of Geriatric Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaoyu Ling
- Department of Geriatric Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Haiou Qin
- Department of Geriatric Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Min Wang
- Department of Geriatric Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Beibei Luo
- Department of Geriatric Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Key Laboratory of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Zhou HF, Ren K, Zhao GJ. Relaxin inhibits macrophage inflammation by repressing NLRP3. Int J Cardiol 2020; 299:254. [PMID: 31791541 DOI: 10.1016/j.ijcard.2019.09.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 09/06/2019] [Indexed: 11/18/2022]
Affiliation(s)
- Hui-Fang Zhou
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan City People's Hospital, Qingyuan 511518, Guangdong, China
| | - Kun Ren
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Guo-Jun Zhao
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan City People's Hospital, Qingyuan 511518, Guangdong, China.
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Beiert T, Knappe V, Andrié RP, Schrickel JW. Response to letter on "Relaxin inhibits macrophage inflammation by repressing NLRP3" by Zhou et al. Int J Cardiol 2020; 298:118. [PMID: 31901259 DOI: 10.1016/j.ijcard.2019.09.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 09/24/2019] [Indexed: 11/19/2022]
Affiliation(s)
- Thomas Beiert
- Department of Internal Medicine II, University Hospital Bonn, Rheinische Friedrich-Wilhelms University, Bonn, Germany.
| | - Vincent Knappe
- Department of Internal Medicine II, University Hospital Bonn, Rheinische Friedrich-Wilhelms University, Bonn, Germany
| | - René P Andrié
- Department of Electrophysiology, Helios Klinikum Siegburg, Siegburg, Germany
| | - Jan W Schrickel
- Department of Internal Medicine II, University Hospital Bonn, Rheinische Friedrich-Wilhelms University, Bonn, Germany
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Wang Y, Liu X, Shi H, Yu Y, Yu Y, Li M, Chen R. NLRP3 inflammasome, an immune-inflammatory target in pathogenesis and treatment of cardiovascular diseases. Clin Transl Med 2020; 10:91-106. [PMID: 32508013 PMCID: PMC7240865 DOI: 10.1002/ctm2.13] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 03/12/2020] [Indexed: 02/06/2023] Open
Abstract
Inflammation is an important process involved in several cardiovascular diseases (CVDs), and nod-like receptor family pyrin domain containing 3 (NLRP3) inflammasome is a vital player in innate immunity and inflammation. In this review, we aim to provide a comprehensive summary of the current knowledge on the role and involvement of NLRP3 inflammasome in the pathogenesis and treatment of CVDs. NLRP3 inflammasome functions as a molecular platform, and triggers the activation of caspase-1 and cleavage of pro-IL-1β, pro-IL-18, and gasdermin D (GSDMD). Cleaved NT-GSDMD forms pores in the cell membrane and initiates pyroptosis, inducing cell death and release of many intracellular pro-inflammatory molecules. NLRP3 inflammasome activation is triggered via inter-related pathways downstream of K+ efflux, lysosomal disruption, and mitochondrial dysfunction. In addition, the Golgi apparatus and noncoding RNAs are gradually being recognized to play important roles in NLRP3 inflammasome activation. Many investigations have revealed the association between NLRP3 inflammasome and CVDs, including atherosclerosis, ischemia/reperfusion (I/R) injury and heart failure induced by pressure overload or cardiomyopathy. Some existing medications, including orthodox and natural medicines, used for CVD treatment have been newly discovered to act via NLRP3 inflammasome. In addition, NLRP3 inflammasome pathway components such as NLRP3, caspase-1, and IL-1β may be considered as novel therapeutic targets for CVDs. Thus, NLRP3 inflammasome is a key molecule involved in the pathogenesis of CVDs, and further research focused on development of NLRP3 inflammasome-based targeted therapies for CVDs and the clinical evaluation of these therapies is essential.
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Affiliation(s)
- Yucheng Wang
- Department of CardiologyZhongshan HospitalShanghai Institute of Cardiovascular DiseasesShanghai Medical College of Fudan UniversityShanghaiChina
| | - Xiaoxiao Liu
- Department of CardiologyZhongshan HospitalShanghai Institute of Cardiovascular DiseasesShanghai Medical College of Fudan UniversityShanghaiChina
| | - Hui Shi
- Department of CardiologyZhongshan HospitalShanghai Institute of Cardiovascular DiseasesShanghai Medical College of Fudan UniversityShanghaiChina
| | - Yong Yu
- Department of CardiologyZhongshan HospitalShanghai Institute of Cardiovascular DiseasesShanghai Medical College of Fudan UniversityShanghaiChina
| | - Ying Yu
- Department of General PracticeZhongshan HospitalShanghai Medical College of Fudan UniversityShanghaiChina
| | - Minghui Li
- Department of CardiologyZhongshan HospitalShanghai Institute of Cardiovascular DiseasesShanghai Medical College of Fudan UniversityShanghaiChina
| | - Ruizhen Chen
- Department of CardiologyZhongshan HospitalShanghai Institute of Cardiovascular DiseasesShanghai Medical College of Fudan UniversityShanghaiChina
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Wang Y, Li H, Li Y, Zhao Y, Xiong F, Liu Y, Xue H, Yang Z, Ni S, Sahil A, Che H, Wang L. Coriolus versicolor
alleviates diabetic cardiomyopathy by inhibiting cardiac fibrosis and NLRP3 inflammasome activation. Phytother Res 2019; 33:2737-2748. [PMID: 31338905 DOI: 10.1002/ptr.6448] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 06/06/2019] [Accepted: 07/01/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Yueqiu Wang
- Department of EndocrinologyThe Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang Province 150001 China
| | - Hui Li
- Department of EndocrinologyThe Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang Province 150001 China
| | - Yang Li
- Department of EndocrinologyThe Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang Province 150001 China
| | - Yihan Zhao
- Department of EndocrinologyThe Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang Province 150001 China
| | - Fangfei Xiong
- Department of EndocrinologyThe Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang Province 150001 China
| | - Yining Liu
- Department of Pharmacology, College of PharmacyHarbin Medical University Harbin Heilongjiang Province 150001 China
| | - Hongru Xue
- Department of Pharmacology, College of PharmacyHarbin Medical University Harbin Heilongjiang Province 150001 China
| | - Zhenyu Yang
- Department of Pharmacology, College of PharmacyHarbin Medical University Harbin Heilongjiang Province 150001 China
| | - Sha Ni
- Department of Pharmacology, College of PharmacyHarbin Medical University Harbin Heilongjiang Province 150001 China
| | - Abbas Sahil
- Department of EndocrinologyThe Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang Province 150001 China
| | - Hui Che
- Department of EndocrinologyThe Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang Province 150001 China
- Institute of Chronic DiseaseHeilongjiang Academy of Medical Science Harbin Heilongjiang Province 150001 China
| | - Lihong Wang
- Department of EndocrinologyThe Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang Province 150001 China
- Institute of Chronic DiseaseHeilongjiang Academy of Medical Science Harbin Heilongjiang Province 150001 China
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46
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Li X, Geng J, Zhao J, Ni Q, Zhao C, Zheng Y, Chen X, Wang L. Trimethylamine N-Oxide Exacerbates Cardiac Fibrosis via Activating the NLRP3 Inflammasome. Front Physiol 2019; 10:866. [PMID: 31354519 PMCID: PMC6634262 DOI: 10.3389/fphys.2019.00866] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/20/2019] [Indexed: 12/22/2022] Open
Abstract
Background/Aims: Gut microbiota has been reported to correlate with a higher mortality and worse prognosis of cardiovascular diseases. Trimethylamine N-oxide (TMAO) is a gut microbiota-dependent metabolite of specific dietary nutrients, which is linked to cardiac fibrosis. Recent reports have suggested that the activation of Nucleotide-binding oligomerization domain (NOD)-like receptor protein 3 (NLRP3) inflammasome contributed to cardiac fibrosis. However, whether TMAO mediates cardiac fibrosis via activating NLRP3 inflammasome remains unclear. Methods and Results: To determine the role of TMAO–mediated cardiac fibrosis, we established mouse models of doxorubicin (DOX)-induced cardiac fibrosis with or without TMAO in drinking water. TMAO exacerbated DOX-induced cardiac dysfunction, heart weight and cardiac fibrosis manifested by enhanced collagen accumulation, higher profibrotic levels and elevated inflammatory factors as well as NLRP3 inflammasome activation. Using primary cultured mouse cardiac fibroblast, our results indicated that TMAO promoted proliferation, migration and collagen secretion in a dose-dependent manner by TGF-β/Smad3 signaling. Furthermore, TMAO treatment induced NLRP3 inflammasome activation including oxidative stress in cultured cardiac fibroblast. Importantly, the silencing of NLRP3 presented a protection effect against cardiac fibrosis including cellular proliferation, migration and collagen deposition in vitro. Conclusion: Our data suggested that TMAO aggravated DOX-induced mouse cardiac fibrosis, at least in part, through activation of the NLRP3 inflammasome, providing a new potential target for preventing the progression of cardiac fibrosis.
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Affiliation(s)
- Xueling Li
- Department of Cardiology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Jin Geng
- Department of Cardiology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Jinxuan Zhao
- Department of Cardiology, Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Qianqian Ni
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Chenze Zhao
- Department of Cardiology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Yaru Zheng
- Department of Cardiology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Xiaomin Chen
- Department of Cardiology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Lihong Wang
- Department of Cardiology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
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Ng HH, Shen M, Samuel CS, Schlossmann J, Bennett RG. Relaxin and extracellular matrix remodeling: Mechanisms and signaling pathways. Mol Cell Endocrinol 2019; 487:59-65. [PMID: 30660699 PMCID: PMC7384500 DOI: 10.1016/j.mce.2019.01.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/15/2019] [Accepted: 01/16/2019] [Indexed: 02/07/2023]
Abstract
Fibrosis is associated with accumulation of excess fibrillar collagen, leading to tissue dysfunction. Numerous processes, including inflammation, myofibroblast activation, and endothelial-to-mesenchymal transition, play a role in the establishment and progression of fibrosis. Relaxin is a peptide hormone with well-known antifibrotic properties that result from its action on numerous cellular targets to reduce fibrosis. Relaxin activates multiple signal transduction pathways as a mechanism to suppress inflammation and myofibroblast activation in fibrosis. In this review, the general mechanisms underlying fibrotic diseases are described, along with the current state of knowledge regarding cellular targets of relaxin. Finally, an overview is presented summarizing the signaling pathways activated by relaxin and other relaxin family peptide receptor agonists to suppress fibrosis.
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Affiliation(s)
- Hooi Hooi Ng
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.
| | - Matthew Shen
- Cardiovascular Disease Theme, Monash Biomedicine Discovery Institute and Department of Pharmacology, Monash University, Clayton, VIC, Australia.
| | - Chrishan S Samuel
- Cardiovascular Disease Theme, Monash Biomedicine Discovery Institute and Department of Pharmacology, Monash University, Clayton, VIC, Australia.
| | - Jens Schlossmann
- Department of Pharmacology and Toxicology, Institute of Pharmacy, University Regensburg, Regensburg, Germany.
| | - Robert G Bennett
- Research Service, VA Nebraska-Western Iowa Health Care System, Departments of Internal Medicine and Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
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Li X, Ke X, Li Z, Li B. Vaspin prevents myocardial injury in rats model of diabetic cardiomyopathy by enhancing autophagy and inhibiting inflammation. Biochem Biophys Res Commun 2019; 514:1-8. [PMID: 31014675 DOI: 10.1016/j.bbrc.2019.04.110] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 04/14/2019] [Indexed: 12/21/2022]
Abstract
NLRP3 inflammasome activation plays an important role in diabetic cardiomyopathy (DCM). It is known that autophagy is related to the activation of inflammasomes during oxidative stress. Visceral adipose tissue-derived serine protease inhibitor (Vaspin), is an adipocytokine that has been shown to exert a protective effect on autophagic activity, but whether and how Vaspin improves myocardial damage in DCM remain unclear. In this study, we explored the role of Vaspin in DCM using a streptozotocin (STZ)-induced diabetes model. Cardiac function, cardiomyocyte apoptosis, myocardial tissue morphology, and mitochondrial morphology in diabetic rats were improved after eight weeks of Vaspin treatment. Vaspin treatment augmented autophagy activation in diabetic rat hearts. Moreover, the activation of NLRP3 inflammasome was inhibited by Vaspin, followed by a decrease in the cleavage of caspase-1 and maturation of IL-1β and TNF-ɑ. In vitro studies found that the mitochondrial reactive oxygen species (ROS) generation as well as the depolarization of the mitochondrial membrane in H9C2cells induced by high glucose were attenuated by Vaspin. This inhibitory effect of Vaspin on NLRP3 inflammasome activation was due to the protection of autophagy activity and was abolished after the treatment of autophagy inhibitor (3-MA). These results demonstrate that Vaspin alleviates STZ-induced myocardial injury and renders a cardioprotective effect by suppressing NLRP3 inflammasome activation and promoting autophagy.
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Affiliation(s)
- Xuelian Li
- Department of Cardiology, Qingdao Municipal Hospital, Qingdao, Shandong, 266071, China.
| | - Xuan Ke
- Department of Cardiology, Wuhan Third Hospital, Wuhan, Hubei, 430000, China.
| | - Zhiyang Li
- Grade 2016 Class 2, College of Basic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
| | - Bingong Li
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China; Department of Cardiology, Qingdao Municipal Hospital, Qingdao, Shandong, 266071, China.
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49
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Li S, Liu R, Xue M, Qiao Y, Chen Y, Long G, Tian X, Hu Y, Zhou P, Dong X, Qi Z, Cui Y, Shen Y. Spleen tyrosine kinase‑induced JNK‑dependent NLRP3 activation is involved in diabetic cardiomyopathy. Int J Mol Med 2019; 43:2481-2490. [PMID: 30942391 DOI: 10.3892/ijmm.2019.4148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 03/20/2019] [Indexed: 11/05/2022] Open
Abstract
Diabetic cardiomyopathy (DCM) is a leading contributor to the increased morbidity and mortality rates associated with diabetes. Persistent inflammation has previously been reported to be involved in the pathogenesis of DCM. However, the exact underlying molecular mechanisms remain to be fully elucidated. In the present study, the role of spleen tyrosine kinase (Syk) and c‑Jun N‑terminal kinase (JNK) in NLR family pyrin domain‑containing 3 (NLRP3 inflammasome) activation in DCM were investigated in vivo and in vitro. Streptozotocin (65 mg/kg) was injected intraperitoneally into Sprague‑Dawley rats to induce a rat model of diabetes. Neonatal rat cardiomyocytes and H9c2 cells were cultured to detect the expression of JNK, NLRP3 and its associated downstream molecules, following treatment with Syk/JNK inhibitor or Syk/JNK‑small interfering (si)RNA in high glucose (HG) conditions. It was revealed that the protein and mRNA expression levels of phospho (p)‑Syk, p‑JNK, NLRP3 and its associated downstream molecules, including interleukin (IL)‑1β, were upregulated in vivo and in vitro. The JNK inhibitor significantly decreased the expression of NLRP3 and its downstream molecules in neonatal rat cardiomyocytes and H9c2 cells treated with HG. Furthermore, Syk‑siRNA and the Syk inhibitor markedly inhibited the HG‑induced activation of JNK, followed by the downregulation of NLRP3 and its downstream molecules at the mRNA and protein levels in cells. Therefore, it was demonstrated that the HG‑induced activation of NLRP3 was mediated by the activation of Syk/JNK, which subsequently increased the protein expression levels of mature IL‑1β, suggesting that the Syk/JNK/NLRP3 signaling pathway serves a critical role in the pathogenesis of DCM.
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Affiliation(s)
- Shengyu Li
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Ruiqing Liu
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Meiting Xue
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Yingchun Qiao
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Yufeng Chen
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Guangfeng Long
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Xixi Tian
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Yahui Hu
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Pengfei Zhou
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Xiaohui Dong
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Zhi Qi
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, P.R. China
| | - Yujie Cui
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Yanna Shen
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
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50
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Gorski DJ, Petz A, Reichert C, Twarock S, Grandoch M, Fischer JW. Cardiac fibroblast activation and hyaluronan synthesis in response to hyperglycemia and diet-induced insulin resistance. Sci Rep 2019; 9:1827. [PMID: 30755628 PMCID: PMC6372628 DOI: 10.1038/s41598-018-36140-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 10/16/2018] [Indexed: 12/14/2022] Open
Abstract
Diabetic patients are at a greater risk of heart failure due to diabetic cardiomyopathy and worsened outcome post-myocardial infarction. While the molecular mechanisms remain unclear, fibrosis and chronic inflammation are common characteristics of both conditions. Diabetes mellitus (types I and II) results in excessive hyaluronan (HA) deposition in vivo, and hyperglycemia stimulates HA synthesis for several cell types in vitro. HA-rich extracellular matrix contributes to fibrotic, hyperplastic and inflammatory disease progression. We hypothesized that excessive hyperglycemia-driven HA accumulation may contribute to pathological fibroblast activation and fibrotic remodelling in diabetic patients. Therefore, we analysed the impact of both hyperglycemia and diet-induced obesity and insulin resistance on HA matrix formation and cardiac fibroblast activation. Here we report that cardiac fibroblasts isolated from mice on a diabetogenic diet acquire pro-fibrotic gene expression without a concomitant increase in HA matrix deposition. Additionally, hyperglycemia alone does not stimulate HA synthesis or cardiac fibroblast activation in vitro, suggesting that the direct effect of hyperglycemia on fibroblasts is not the primary driver of fibrotic remodelling in cardiac diabetic maladaptation.
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Affiliation(s)
- Daniel J Gorski
- Institut für Pharmakologie und Klinische Pharmakologie, University Hospital, Heinrich-Heine-University, Düsseldorf, Germany
| | - Anne Petz
- Institut für Pharmakologie und Klinische Pharmakologie, University Hospital, Heinrich-Heine-University, Düsseldorf, Germany
| | - Christina Reichert
- Institut für Pharmakologie und Klinische Pharmakologie, University Hospital, Heinrich-Heine-University, Düsseldorf, Germany
| | - Sören Twarock
- Institut für Pharmakologie und Klinische Pharmakologie, University Hospital, Heinrich-Heine-University, Düsseldorf, Germany
| | - Maria Grandoch
- Institut für Pharmakologie und Klinische Pharmakologie, University Hospital, Heinrich-Heine-University, Düsseldorf, Germany
| | - Jens W Fischer
- Institut für Pharmakologie und Klinische Pharmakologie, University Hospital, Heinrich-Heine-University, Düsseldorf, Germany. .,CARID, Cardiovascular Research Institute Düsseldorf, University Hospital, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.
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