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Wang J, Li Y, Li L, Liang H, Ye H, Kang P, Li Z, Yu Y, Gao Q. Effect of NLRP3 gene knockdown on pyroptosis and ferroptosis in diabetic cardiomyopathy injury. BMC Cardiovasc Disord 2024; 24:351. [PMID: 38987672 PMCID: PMC11234732 DOI: 10.1186/s12872-024-04010-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 06/25/2024] [Indexed: 07/12/2024] Open
Abstract
Diabetic cardiomyopathy (DCM) is a chronic disease caused by diabetes mellitus, which is recognized as a worldwide challenging disease. This study aimed to investigate the role and the potential mechanism of knocking down the NACHT-, LRR- and PYD domains-containing protein 3 (NLRP3), an inflammasome associated with onset and progression of various diseases, on high glucose or diabetes -induced cardiac cells pyroptosis and ferroptosis, two regulated non-necrosis cell death modalities discovered recent years. In the present study, both in vivo and in vitro studies were conducted simultaneously. Diabetic rats were induced by 55 mg/kg intraperitoneal injection of streptozotocin (STZ). Following the intraperitoneal injection of MCC950 (10 mg/kg), On the other hand, the DCM model in H9C2 cardiac cells was simulated with 35 mmol/L glucose and a short hairpin RNA vector of NLRP3 were transfected to cells. The results showed that in vivo study, myocardial fibers were loosely arranged and showed inflammatory cell infiltration, mitochondrial cristae were broken and the GSDMD-NT expression was found notably increased in the DM group, while the protein expressions of xCT and GPX4 was significantly decreased, both of which were reversed by MCC950. High glucose reduced the cell viability and ATP level in vitro, accompanied by an increase in LDH release. All of the above indicators were reversed after NLRP3 knockdown compared with the HG treated alone. Moreover, the protein expressions of pyroptosis- and ferroptosis-related fators were significantly decreased or increased, consistent with the results shown by immunofluorescence. Furthermore, the protective effects of NLRP3 knockdown against HG were reversed following the mtROS agonist rotenone (ROT) treatment. In conclusion, inhibition of NLRP3 suppressed DM-induced myocardial injury. Promotion of mitochondrial ROS abolished the protective effect of knockdown NLRP3, and induced the happening of pyroptosis and ferroptosis. These findings may present a novel therapeutic underlying mechanism for clinical diabetes-induced myocardial injury treatment.
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Affiliation(s)
- Jiahui Wang
- Department of Anatomy, Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
- Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
| | - Yuping Li
- Department of Physiology, Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
- Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
| | - Lu Li
- Department of Physiology, Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
- Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
| | - Huan Liang
- Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
- Department of Graduate Studies, Department of Cardiology, The First Affiliated Hospital of Bengbu Medical University, Bengbu, 233004, Anhui, P.R. China
| | - Hongwei Ye
- Department of Physiology, Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
- Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
| | - Pinfang Kang
- Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
- Department of Cardiology, The First Affiliated Hospital of Bengbu Medical University, Bengbu, 233004, Anhui, P.R. China
| | - Zhenghong Li
- Department of Physiology, Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
- Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
| | - Ying Yu
- Department of Physiology, Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
- Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China
| | - Qin Gao
- Department of Physiology, Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China.
- Key Laboratory of Basic and Clinical Cardiovascular Diseases, Bengbu Medical University, Bengbu, 233000, Anhui, P.R. China.
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Guo Y, Mao T, Fang Y, Wang H, Yu J, Zhu Y, Shen S, Zhou M, Li H, Hu Q. Comprehensive insights into potential roles of purinergic P2 receptors on diseases: Signaling pathways involved and potential therapeutics. J Adv Res 2024:S2090-1232(24)00123-1. [PMID: 38565403 DOI: 10.1016/j.jare.2024.03.027] [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: 01/17/2024] [Revised: 03/03/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Purinergic P2 receptors, which can be divided into ionotropic P2X receptors and metabotropic P2Y receptors, mediate cellular signal transduction of purine or pyrimidine nucleoside triphosphates and diphosphate. Based on the wide expression of purinergic P2 receptors in tissues and organs, their significance in homeostatic maintenance, metabolism, nociceptive transmission, and other physiological processes is becoming increasingly evident, suggesting that targeting purinergic P2 receptors to regulate biological functions and signal transmission holds significant promise for disease treatment. AIM OF REVIEW This review highlights the detailed mechanisms by which purinergic P2 receptors engage in physiological and pathological progress, as well as providing prospective strategies for discovering clinical drug candidates. KEY SCIENTIFIC CONCEPTS OF REVIEW The purinergic P2 receptors regulate complex signaling and molecular mechanisms in nervous system, digestive system, immune system and as a result, controlling physical health states and disease progression. There has been a significant rise in research and development focused on purinergic P2 receptors, contributing to an increased number of drug candidates in clinical trials. A few influential pioneers have laid the foundation for advancements in the evaluation, development, and of novel purinergic P2 receptors modulators, including agonists, antagonists, pharmaceutical compositions and combination strategies, despite the different scaffolds of these drug candidates. These advancements hold great potential for improving therapeutic outcomes by specifically targeting purinergic P2 receptors.
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Affiliation(s)
- Yanshuo Guo
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Tianqi Mao
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215006, China
| | - Yafei Fang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Hui Wang
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215006, China
| | - Jiayue Yu
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yifan Zhu
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215006, China
| | - Shige Shen
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Mengze Zhou
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Huanqiu Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215006, China.
| | - Qinghua Hu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China.
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Wan MM, Fu ZY, Jin T, Wang ZY, Sun XY, Gao WP. Electroacupuncture regulates the P2X 7R-NLRP3 inflammatory cascade to relieve decreased sensation on ocular surface of type 2 diabetic rats with dry eye. Purinergic Signal 2024:10.1007/s11302-024-09991-0. [PMID: 38467962 DOI: 10.1007/s11302-024-09991-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 02/07/2024] [Indexed: 03/13/2024] Open
Abstract
Dry eye (DE) is a prevalent ocular surface disease in patients with type 2 diabetes (T2DM). However, current medications are ineffective against decreased sensation on the ocular surface. While electroacupuncture (EA) effectively alleviates decreased sensation on ocular surface of DE in patients with T2DM, the neuroprotective mechanism remains unclear. This study explored the pathogenesis and therapeutic targets of T2DM-associated DE through bioinformatics analysis. It further investigated the underlying mechanism by which EA improves decreased sensation on the ocular surface of DE in rats with T2DM. Bioinformatic analysis was applied to annotate the potential pathogenesis of T2DM DE. T2DM and DE was induced in male rats. Following treatment with EA and fluorometholone, comprehensive metrics were assessed. Additionally, the expression patterns of key markers were studied. Key targets such as NLRP3, Caspase-1, and NOD-like receptor signaling may be involved in the pathogenesis of T2DM DE. EA treatment improved ocular measures. Furthermore, EA potently downregulated P2X7R, NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC), and Caspase-1 expression within the trigeminal ganglion and spinal trigeminal nucleus caudalis. Targeted P2X7R antagonist (A-438079) and agonist (BzATP) employed as controls to decipher the biochemistry of the therapeutic effects of EA showed an anti-inflammatory effect with A-438079, while BzATP blocked the anti-inflammatory effect of EA. EA relieved DE symptoms and attenuated inflammatory damage to sensory nerve pathways in T2DM rats with DE. These findings suggest a crucial role of EA inhibition of the P2X7R-NLRP3 inflammatory cascade to provide these benefits.
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Affiliation(s)
- Mi-Mi Wan
- Department of Ophthalmology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhang-Yitian Fu
- Department of Ophthalmology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Tuo Jin
- Department of Ophthalmology, Kunshan Hospital of Chinese Medicine, Suzhou, China
| | - Zhuo-Yuan Wang
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xin-Yi Sun
- Department of Endocrinology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
| | - Wei-Ping Gao
- Department of Ophthalmology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
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Zhang D, Wu H, Liu D, Ye M, Li Y, Zhou G, Yang Q, Liu Y, Li Y. cFLIP L alleviates myocardial ischemia-reperfusion injury by regulating pyroptosis. Cell Biol Int 2024; 48:60-75. [PMID: 37750485 DOI: 10.1002/cbin.12091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/04/2023] [Accepted: 09/13/2023] [Indexed: 09/27/2023]
Abstract
Alleviating myocardial ischemia-reperfusion injury (MIRI) plays a critical role in the prognosis and improvement of cardiac function following acute myocardial infarction. Pyroptosis is a newly identified form of cell death that has been implicated in the regulation of MIRI. In our study, H9c2 cells and SD rats were transfected using a recombinant adenovirus vector carrying cFLIPL , and the transfection was conducted for 3 days. Subsequently, H9c2 cells were subjected to 4 h of hypoxia followed by 12 h of reoxygenation to simulate an in vitro ischemia-reperfusion model. SD rats underwent 30 min of ischemia followed by 2 h of reperfusion to establish an MIRI model. Our findings revealed a notable decrease in cFLIPL expression in response to ischemia/reperfusion (I/R) and hypoxia/reoxygenation (H/R) injuries. Overexpression of cFLIPL can inhibit pyroptosis, reducing myocardial infarction area in vivo, and enhancing H9c2 cell viability in vitro. I/R and H/R injuries induced the upregulation of ASC, cleaved Caspase 1, NLRP3, GSDMD-N, IL-1β, and IL-18 proteins, promoting cell apoptosis. Our research indicates that cFLIPL may suppress pyroptosis by strategically binding with Caspase 1, inhibiting the release of inflammatory cytokines and preventing cell membrane rupture. Therefore, cFLIPL could potentially serve as a promising target for alleviating MIRI by suppressing the pyroptotic pathway.
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Affiliation(s)
- Dong Zhang
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, China
- Department of Cardiology, Yichang Central People's Hospital, Yichang, China
| | - Hui Wu
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, China
- Department of Cardiology, Yichang Central People's Hospital, Yichang, China
| | - Di Liu
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, China
- Department of Cardiology, Yichang Central People's Hospital, Yichang, China
| | - Ming Ye
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, China
- Department of Cardiology, Yichang Central People's Hospital, Yichang, China
| | - Yunzhao Li
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, China
- Department of Cardiology, Yichang Central People's Hospital, Yichang, China
| | - Gang Zhou
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, China
- Department of Cardiology, Yichang Central People's Hospital, Yichang, China
| | - QingZhuo Yang
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, China
- Department of Cardiology, Yichang Central People's Hospital, Yichang, China
| | - YanFang Liu
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, China
- Department of Cardiology, Yichang Central People's Hospital, Yichang, China
| | - Yi Li
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, China
- Department of Cardiology, Yichang Central People's Hospital, Yichang, China
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Yan Q, Feng Z, Jiang B, Yao J. Biological functions of connexins in the development of inflammatory bowel disease. Scand J Gastroenterol 2024; 59:142-149. [PMID: 37837320 DOI: 10.1080/00365521.2023.2267713] [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: 07/05/2023] [Accepted: 10/01/2023] [Indexed: 10/16/2023]
Abstract
Inflammatory bowel disease (IBD) is a group of chronic intestinal inflammatory diseases with unknown etiology. Gap junctions composed of connexins (Cxs) have been recently validated as an important factor in the development of IBD. Under IBD-induced inflammatory response in the gut, gap junctions connect multiple signaling pathways involved in the interaction between inflammatory cells with other intestinal cells, which altogether mediate the development of IBD. This paper is a narrative review aiming to comprehensively elucidate the biological function of connexins, especially the ubiquitously and predominantly expressed Cx43, in the pathogenesis of IBD.
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Affiliation(s)
- Qiaojing Yan
- Colorectal Surgery Center, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
- Jiangsu Province Traditional Chinese Medicine Innovation Center for Anorectal Disease, Nanjing, China
| | - Zhiling Feng
- Colorectal Surgery Center, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Bin Jiang
- Colorectal Surgery Center, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
- Jiangsu Province Traditional Chinese Medicine Innovation Center for Anorectal Disease, Nanjing, China
| | - Jian Yao
- Division of Molecular Signaling, Department of the Advanced Biomedical Research, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo, Japan
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Zhang W, Yin J, Gao BY, Lu X, Duan YJ, Liu XY, Li MZ, Jiang S. Inhibition of astroglial hemichannels ameliorates infrasonic noise induced short-term learning and memory impairment. BEHAVIORAL AND BRAIN FUNCTIONS : BBF 2023; 19:23. [PMID: 38110991 PMCID: PMC10726613 DOI: 10.1186/s12993-023-00226-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/13/2023] [Indexed: 12/20/2023]
Abstract
As a kind of environmental noise, infrasonic noise has negative effects on various human organs. To date, research has shown that infrasound impairs cognitive function, especially the ability for learning and memory. Previously, we demonstrated that impaired learning and memory induced by infrasound was closely related with glia activation; however, the underlying mechanisms remain unclear. Connexin 43 hemichannels (Cx43 HCs), which are mainly expressed in hippocampal astrocytes, are activated under pathological conditions, lending support to the hypothesis that Cx43 HCs might function in the impaired learning and memory induced by infrasound. This study revealed that that blocking hippocampal Cx43 HCs or downregulating hippocampal Cx43 expression significantly alleviated impaired learning and memory induced by infrasound. We also observed that infrasound exposure led to the abundant release of glutamate and ATP through Cx43 HCs. In addition, the abundant release of glutamate and ATP depended on proinflammatory cytokines. Our finds suggested that the enhanced release of ATP and glutamate by astroglial Cx43 HCs may be involved in the learning and memory deficits caused by infrasound exposure.
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Affiliation(s)
- Wei Zhang
- Teaching and Evaluation Center of Air Force Medical University, Xi'an, 710032, China
| | - Jue Yin
- Department of Rehabilitation Medicine, The China-Japan Friendship Hospital, No.2 Ying Hua Yuan East Street, Beijing, 100029, People's Republic of China
| | - Bei-Yao Gao
- Department of Rehabilitation Medicine, The China-Japan Friendship Hospital, No.2 Ying Hua Yuan East Street, Beijing, 100029, People's Republic of China
| | - Xi Lu
- Department of Rehabilitation Medicine, The China-Japan Friendship Hospital, No.2 Ying Hua Yuan East Street, Beijing, 100029, People's Republic of China
| | - Ya-Jing Duan
- Department of Rehabilitation Medicine, The China-Japan Friendship Hospital, No.2 Ying Hua Yuan East Street, Beijing, 100029, People's Republic of China
| | - Xu-Yan Liu
- Department of Rehabilitation Medicine, The China-Japan Friendship Hospital, No.2 Ying Hua Yuan East Street, Beijing, 100029, People's Republic of China
| | - Ming-Zhen Li
- Department of Rehabilitation Medicine, The China-Japan Friendship Hospital, No.2 Ying Hua Yuan East Street, Beijing, 100029, People's Republic of China
| | - Shan Jiang
- Department of Rehabilitation Medicine, The China-Japan Friendship Hospital, No.2 Ying Hua Yuan East Street, Beijing, 100029, People's Republic of China.
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Ullah R, Shen Y, Zhou YD, Fu J. Perinatal metabolic inflammation in the hypothalamus impairs the development of homeostatic feeding circuitry. Metabolism 2023; 147:155677. [PMID: 37543245 DOI: 10.1016/j.metabol.2023.155677] [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: 05/22/2023] [Revised: 07/14/2023] [Accepted: 08/01/2023] [Indexed: 08/07/2023]
Abstract
Over the past few decades, there has been a global increase in childhood obesity. This rise in childhood obesity contributes to the susceptibility of impaired metabolism during both childhood and adulthood. The hypothalamus, specifically the arcuate nucleus (ARC), houses crucial neurons involved in regulating homeostatic feeding. These neurons include proopiomelanocortin (POMC) and agouti-related peptide (AGRP) secreting neurons. They play a vital role in sensing nutrients and metabolic hormones like insulin, leptin, and ghrelin. The neurogenesis of AGRP and POMC neurons completes at birth; however, axon development and synapse formation occur during the postnatal stages in rodents. Insulin, leptin, and ghrelin are the essential regulators of POMC and AGRP neurons. Maternal obesity and postnatal overfeeding or a high-fat diet (HFD) feeding cause metabolic inflammation, disrupted signaling of metabolic hormones, netrin-1, and neurogenic factors, neonatal obesity, and defective neuronal development in animal models; however, the mechanism is unclear. Within the hypothalamus and other brain areas, there exists a wide range of interconnected neuronal populations that regulate various aspects of feeding. However, this review aims to discuss how perinatal metabolic inflammation influences the development of POMC and AGRP neurons within the hypothalamus.
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Affiliation(s)
- Rahim Ullah
- Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang, 310052, China; Institute of Neuroscience, NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, Zhejiang University School of Brain Science and Brain Medicine, Hangzhou, China
| | - Yi Shen
- Institute of Neuroscience, NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, Zhejiang University School of Brain Science and Brain Medicine, Hangzhou, China.
| | - Yu-Dong Zhou
- Institute of Neuroscience, NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, Zhejiang University School of Brain Science and Brain Medicine, Hangzhou, China.
| | - Junfen Fu
- Department of Endocrinology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang, 310052, China.
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Wu Y, Huang X, Yang L, Liu Y. Purinergic neurotransmission receptor P2X4 silencing alleviates intracerebral hemorrhage-induced neuroinflammation by blocking the NLRP1/Caspase-1 pathway. Sci Rep 2023; 13:14288. [PMID: 37652931 PMCID: PMC10471699 DOI: 10.1038/s41598-023-40748-8] [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: 03/06/2023] [Accepted: 08/16/2023] [Indexed: 09/02/2023] Open
Abstract
This study is performed to explore the role of P2X4 in intracerebral hemorrhage (ICH) and the association between P2X4 and the NLRP1/Caspase-1 pathway. The mouse ICH model was established via collagenase injection into the right basal ganglia. P2X4 expression in brain tissues was knocked down via intracerebroventricular injection with adeno-associated virus (AAV) harboring shRNA against shP2X4. The gene expression of P2X4 and protein levels related to NLRP1 inflammasome were detected using qRT-PCR and Western blot analysis, respectively. Muramyl dipeptide (an activator of NLRP1) was used to activate NLRP1 in brain tissues. ICH induced high expression of P2X4 in mouse brain tissues. The knockdown of P2X4 alleviated short- and long-term neurological deficits of ICH mice, as well as inhibited the tissue expression and serum levels of pro-inflammatory cytokines, including TNF-α, interleukin (IL)-6, and IL-1β. Additionally, the expressions of NLRP1, ASC, and pro-Caspase-1 were down-regulated upon P2X4 silencing. Moreover, neurological impairment and the expression and secretion of cytokines after P2X4 silencing were aggravated by the additional administration of MDP. P2X4 knockdown represses neuroinflammation in brain tissues after ICH. Mechanistically, P2X4 inhibition exerts a neuroprotective effect in ICH by blocking the NLRP1/Caspase-1 pathway.
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Affiliation(s)
- Yuanshui Wu
- Department of Neurosurgery, ShangRao People's Hospital, No. 87, Shuyuan Road, Shangrao City, 334000, Jiangxi Province, China.
| | - Xiaoli Huang
- JiangXi Medical College, No. 399, Zhimin Road, Xinzhou District, Shangrao City, 334099, Jiangxi Province, China
| | - Le Yang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou City, 510515, Guangdong Province, China
| | - Yuanjie Liu
- JiangXi Medical College, No. 399, Zhimin Road, Xinzhou District, Shangrao City, 334099, Jiangxi Province, China
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Yang X, Tang Z. The role of pyroptosis in cognitive impairment. Front Neurosci 2023; 17:1206948. [PMID: 37332874 PMCID: PMC10272378 DOI: 10.3389/fnins.2023.1206948] [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: 04/16/2023] [Accepted: 05/18/2023] [Indexed: 06/20/2023] Open
Abstract
Cognitive impairment is a major global disease, manifests as a decline in cognitive functioning and endangers the health of the population worldwide. The incidence of cognitive impairment has increased rapidly with an increasingly aging population. Although the mechanisms of cognitive impairment have partly been elucidated with the development of molecular biological technology, treatment methods are very limited. As a unique form of programmed cell death, pyroptosis is highly pro-inflammatory and is closely associated with the incidence and progression of cognitive impairment. In this review, we discuss the molecular mechanisms of pyroptosis briefly and the research progress on the relationship between pyroptosis and cognitive impairment and its potential therapeutic values, to provide a reference for research in the field of cognitive impairment.
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Affiliation(s)
- Xin Yang
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhe Tang
- Department of Thoracic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Cheng L, Chen Y, Guo D, Zhong Y, Li W, Lin Y, Miao Y. mTOR-dependent TFEB activation and TFEB overexpression enhance autophagy-lysosome pathway and ameliorate Alzheimer's disease-like pathology in diabetic encephalopathy. Cell Commun Signal 2023; 21:91. [PMID: 37143104 PMCID: PMC10158341 DOI: 10.1186/s12964-023-01097-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 03/07/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Diabetic encephalopathy (DE) is a complication of type 2 diabetes mellitus (T2DM) that features Alzheimer's disease (AD)-like pathology, which can be degraded by the autophagy-lysosome pathway (ALP). Since transcription factor EB (TFEB) is a master regulator of ALP, TFEB-mediated ALP activation might have a therapeutic effect on DE, but this has yet to be investigated. METHODS We established T2DM mouse models and cultured HT22 cells under high-glucose (HG) conditions to confirm the role of ALP in DE. To further investigate this, both mice and HT22 cells were treated with 3-methyladenine (3-MA). We also analyzed the content of TFEB in the nucleus and cytoplasm to evaluate its role in ALP. To confirm the effect of TFEB activation at the post-translational level in DE, we used rapamycin to inhibit the mechanistic target of rapamycin (mTOR). We transduced both mice and cells with TFEB vector to evaluate the therapeutic effect of TFEB overexpression on DE. Conversely, we conducted TFEB knockdown to verify its role in DE in another direction. RESULTS We found that T2DM mice experienced compromised cognitive function, while HG-cultured HT22 cells exhibited increased cell apoptosis. Additionally, both T2DM mice and HG-cultured HT22 cells showed impaired ALP and heavier AD-like pathology. This pathology worsened after treatment with 3-MA. We also observed decreased TFEB nuclear translocation in both T2DM mice and HG-cultured HT22 cells. However, inhibiting mTOR with rapamycin or overexpressing TFEB increased TFEB nuclear translocation, enhancing the clearance of ALP-targeted AD-like pathology. This contributed to protection against neuronal apoptosis and alleviation of cognitive impairment. Conversely, TFEB knockdown lessened ALP-targeted AD-like pathology clearance and had a negative impact on DE. CONCLUSION Our findings suggest that impaired ALP is responsible for the aggravation of AD-like pathology in T2DM. We propose that mTOR-dependent TFEB activation and TFEB overexpression are promising therapeutic strategies for DE, as they enhance the clearance of ALP-targeted AD-like pathology and alleviate neuronal apoptosis. Our study provides insight into the underlying mechanisms of DE and offers potential avenues for the development of new treatments for this debilitating complication of T2DM. Video abstract.
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Affiliation(s)
- Lizhen Cheng
- Department of Geriatrics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Xuhui, Shanghai, 200233, People's Republic of China
| | - Yixin Chen
- Department of Geriatrics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Xuhui, Shanghai, 200233, People's Republic of China
| | - Donghao Guo
- Department of Geriatrics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Xuhui, Shanghai, 200233, People's Republic of China
- Division of Cardiology, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Yuan Zhong
- Department of Geriatrics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Xuhui, Shanghai, 200233, People's Republic of China
| | - Wei Li
- Department of Geriatrics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Xuhui, Shanghai, 200233, People's Republic of China
| | - Yijia Lin
- Department of Geriatrics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Xuhui, Shanghai, 200233, People's Republic of China
| | - Ya Miao
- Department of Geriatrics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Xuhui, Shanghai, 200233, People's Republic of China.
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Wang X, Wan Z. Dexmedetomidine alleviates propofol-induced pyroptosis of hippocampal neurons through NLRP3 inflammasome pathway. Neuroreport 2023; 34:375-384. [PMID: 37096782 DOI: 10.1097/wnr.0000000000001897] [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: 04/26/2023]
Abstract
Propofol is neurotoxic to trigger neuronal pyroptosis and dexmedetomidine possesses the ability to suppress proptosis. This study expounded on the protective functions of dexmedetomidine on propofol-induced pyroptosis of primary hippocampal neurons via NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome pathway. At first, primary hippocampal neurons underwent separation and identification and were treated with different concentrations of propofol (1, 10, and 100 μM). The toxicity of propofol in the neurons was evaluated. Prior to propofol treatment, the neurons were treated with different concentrations of dexmedetomidine (0.01, 0.1, 1, 5, and 10 μM). The viability of neurons with different treatments was detected. The mRNA expressions of homeobox A5 (HOXA5) and NLRP3 were identified. The protein levels of intracellular HOXA5, NLRP3, the N-terminal fragment of gasdermin D (GSDMD-N), and cleaved-caspase-1 and the concentrations of interleukin (IL)-1β and IL-18 were examined. Subsequently, the binding of HOXA5 to the NLRP3 promoter was detected. Joint experiments were conducted with pcDNA3.1-HOXA5 or pcDNA3.1-NLRP3 in dexmedetomidine-treated neurons. Dexmedetomidine pretreatment attenuated propofol-induced pyroptosis of hippocampal neurons, increased cell viability, and repressed NLRP3, GSDMD-N, and cleaved-caspase-1 protein levels and IL-1β and IL-18 concentrations. Dexmedetomidine pretreatment inhibited intracellular HOXA5 expression, and HOXA5 bound to the NLRP3 promoter region to promote NLRP3 expression. Overexpressing HOXA5 or NLRP3 reversed anti-pyroptosis role of dexmedetomidine pretreatment in hippocampal neurons. Dexmedetomidine pretreatment suppressed NLRP3 expression by downregulating HOXA5 expression, inhibiting propofol-induced pyroptosis in primary hippocampal neurons.
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Affiliation(s)
- Xin Wang
- Department of Anesthesiology, Maternal and Child Health Hospital of Hubei Province, Wuhan, Hubei Province, P.R. China
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12
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Castro MFV, Assmann CE, Stefanello N, Reichert KP, Palma TV, da Silva AD, Miron VV, Mostardeiro VB, Morsch VMM, Schetinger MRC. Caffeic acid attenuates neuroinflammation and cognitive impairment in streptozotocin-induced diabetic rats: Pivotal role of the cholinergic and purinergic signaling pathways. J Nutr Biochem 2023; 115:109280. [PMID: 36796549 DOI: 10.1016/j.jnutbio.2023.109280] [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: 06/11/2022] [Revised: 01/30/2023] [Accepted: 02/03/2023] [Indexed: 02/16/2023]
Abstract
The present study evaluated the effect of caffeic acid (CA) on behavioral learning and memory tasks in the diabetic state. We also evaluated the effect of this phenolic acid on the enzymatic activities of acetylcholinesterase, ecto-nucleoside triphosphate diphosphohydrolase, ecto-5-nucleotidase and adenosine deaminase as well as on the density of M1R, α7nAChR, P2×7R, A1R, A2AR, and inflammatory parameters in the cortex and hippocampus of diabetic rats. Diabetes was induced by a single intraperitoneal dose of streptozotocin (55 mg/kg). The animals were divided into six groups: control/vehicle; control/CA 10 and 50 mg/kg; diabetic/vehicle; diabetic/CA 10 and 50 mg/kg, treated by gavage. The results showed that CA improved learning and memory deficits in diabetic rats. Also, CA reversed the increase in acetylcholinesterase and adenosine deaminase activities and reduced ATP and ADP hydrolysis. Moreover, CA increased the density of M1R, α7nAChR, and A1R receptors and reversed the increase in P2×7R and A2AR density in both evaluated structures. In addition, CA treatment attenuated the increase in NLRP3, caspase 1, and interleukin 1β density in the diabetic state; moreover, it increased the density of interleukin-10 in the diabetic/CA 10 mg/kg group. The results indicated that CA treatment positively modified the activities of cholinergic and purinergic enzymes and the density of receptors, and improved the inflammatory parameters of diabetic animals. Thus, the outcomes suggest that this phenolic acid could improve the cognitive deficit linked to cholinergic and purinergic signaling in the diabetic state.
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Affiliation(s)
- Milagros Fanny Vera Castro
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil.
| | - Charles Elias Assmann
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil
| | - Naiara Stefanello
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil
| | - Karine Paula Reichert
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil
| | - Taís Vidal Palma
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil
| | - Aniélen Dutra da Silva
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil
| | - Vanessa Valéria Miron
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil
| | - Vitor Bastianello Mostardeiro
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil
| | - Vera Maria Melchiors Morsch
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil
| | - Maria Rosa Chitolina Schetinger
- Post-Graduate Program in Biological Sciences: Toxicological Biochemistry, Center for Natural and Exact Sciences, Federal University of Santa Maria, University Campus, Santa Maria, RS, Brazil.
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Song A, Wu Z, Zhao W, Shi W, Cheng R, Jiang J, Ni Z, Qu H, Qiaolongbatu X, Fan G, Lou Y. The Role and Mechanism of Hyperoside against Depression-like Behavior in Mice via the NLRP1 Inflammasome. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58121749. [PMID: 36556951 PMCID: PMC9788057 DOI: 10.3390/medicina58121749] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 12/02/2022]
Abstract
BACKGROUND AND OBJECTIVES Hypericum perforatum (HP) is widely used for depressive therapy. Nevertheless, the antidepressant effect and potential mechanism of hyperoside (Hyp), the main active component of HP, have not been determined. MATERIALS AND METHODS We performed ultra-performance liquid chromatography-quadrupole-time-of-flight-tandem mass spectrometry (UPLC-Q-TOF-MS/MS) technology to analyze the components in HP. Using data mining and network pharmacology methods, combined with Cytoscape v3.7.1 and other software, the active components, drug-disease targets, and key pathways of HP in the treatment of depression were evaluated. Finally, the antidepressant effects of Hyp and the mechanism involved were verified in chronic-stress-induced mice. RESULTS We identified 12 compounds from HP. Hyp, isoquercetin, and quercetin are the main active components of HP. The Traditional Chinese Medicine Systems Pharmacology Database (TCMSP), the Analysis Platform, DrugBank, and other databases were analyzed using data mining, and the results show that the active components of HP and depression are linked to targets such as TNF-, IL-2, TLR4, and so on. A potential signaling pathway that was most relevant to the antidepressant effects of Hyp is the C-type lectin receptor signaling pathway. Furthermore, the antidepressant effects of Hyp were examined, and it is verified for the first time that Hyp significantly alleviated depressive-like behaviors in chronic-stress-induced mice, which may be mediated by inhibiting the NLRP1 inflammasome through the CXCL1/CXCR2/BDNF signaling pathway. CONCLUSION Hyp is one of the main active components of HP, and Hyp has antidepressant effects through the NLRP1 inflammasome, which may be connected with the CXCL1/CXCR2/BDNF signaling pathway.
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Affiliation(s)
- Aoqi Song
- Department of Pharmacy, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Zhenghua Wu
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, China
| | - Wenjuan Zhao
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wenqing Shi
- Department of Pharmacy, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Ru Cheng
- Department of Pharmacy, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Jingjing Jiang
- Department of Pharmacy, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Zhuojun Ni
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Han Qu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | | | - Guorong Fan
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, China
- Correspondence: (G.F.); (Y.L.)
| | - Yuefen Lou
- Department of Pharmacy, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai 200434, China
- Correspondence: (G.F.); (Y.L.)
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Le J, Xiao X, Zhang D, Feng Y, Wu Z, Mao Y, Mou C, Xie Y, Chen X, Liu H, Cui W. Neuroprotective Effects of an Edible Pigment Brilliant Blue FCF against Behavioral Abnormity in MCAO Rats. Pharmaceuticals (Basel) 2022; 15:ph15081018. [PMID: 36015166 PMCID: PMC9414705 DOI: 10.3390/ph15081018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/14/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Ischemic stroke leads to hypoxia-induced neuronal death and behavioral abnormity, and is a major cause of death in the modern society. However, the treatments of this disease are limited. Brilliant Blue FCF (BBF) is an edible pigment used in the food industry that with multiple aromatic rings and sulfonic acid groups in its structure. BBF and its derivatives were proved to cross the blood-brain barrier and have advantages on the therapy of neuropsychiatric diseases. In this study, BBF, but not its derivatives, significantly ameliorated chemical hypoxia-induced cell death in HT22 hippocampal neuronal cell line. Moreover, protective effects of BBF were attributed to the inhibition of the extracellular regulated protein kinase (ERK) and glycogen synthase kinase-3β (GSK3β) pathways as evidenced by Western blotting analysis and specific inhibitors. Furthermore, BBF significantly reduced neurological and behavioral abnormity, and decreased brain infarct volume and cerebral edema induced by middle cerebral artery occlusion/reperfusion (MCAO) in rats. MCAO-induced increase of p-ERK in ischemic penumbra was reduced by BBF in rats. These results suggested that BBF prevented chemical hypoxia-induced otoxicity and MCAO-induced behavioral abnormity via the inhibition of the ERK and GSK3β pathways, indicating the potential use of BBF for treating ischemic stroke
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Wei Cui
- Correspondence: ; Tel./Fax: +86-574-8760-9589
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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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