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Wang M, Chen Z, Tang Z, Tang S. Natural products derived from traditional Chinese medicines targeting ER stress for the treatment of kidney diseases. Ren Fail 2024; 46:2396446. [PMID: 39192602 PMCID: PMC11360642 DOI: 10.1080/0886022x.2024.2396446] [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: 03/21/2024] [Revised: 08/19/2024] [Accepted: 08/20/2024] [Indexed: 08/29/2024] Open
Abstract
Various factors, both internal and external, can disrupt endoplasmic reticulum (ER) homeostasis and increase the burden of protein folding, resulting in ER stress. While short periods of ER stress can help cells return to normal function, excessive or prolonged ER stress triggers a complex signaling network that negatively affects cells. Numerous studies have demonstrated the significant role of ER stress in various kidney diseases, such as immune-related kidney injury, diabetic kidney diseases, renal ischemia reperfusion injury, and renal fibrosis. To date, there is a severe shortage of medications for the treatment of acute and chronic kidney diseases of all causes. Natural products derived from various traditional Chinese medicines (TCM), which are a major source of new drugs, have garnered considerable attention. Recent research has revealed that many natural products have renoprotective effects by targeting ER stress-mediated events, such as apoptosis, oxidative stress, inflammation, autophagy, and epithelial-mesenchymal transition. This article provides a comprehensive review of the current research progress on natural products targeting ER stress for the treatment of kidney diseases.
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Affiliation(s)
- Mengping Wang
- Department of Nephrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhengtao Chen
- Department of Cardiovascular, Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, China
| | - Ziru Tang
- Department of Nephrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shiyun Tang
- GCP Center, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Lu F, Wang R, Cheng Y, Li X. Preconditioning with β-hydroxybutyrate attenuates lung ischemia-reperfusion injury by suppressing alveolar macrophage pyroptosis through the SIRT1-FOXO3 signaling pathway. FASEB J 2024; 38:e70027. [PMID: 39221615 DOI: 10.1096/fj.202401188r] [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: 05/28/2024] [Revised: 07/23/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024]
Abstract
The complex pathogenesis of lung ischemia-reperfusion injury (LIRI) was examined in a murine model, focusing on the role of pyroptosis and its exacerbation of lung injury. We specifically examined the levels and cellular localization of pyroptosis within the lung, which revealed alveolar macrophages as the primary site. The inhibition of pyroptosis by VX-765 reduced the severity of lung injury, underscoring its significant role in LIRI. Furthermore, the therapeutic potential of β-hydroxybutyrate (β-OHB) in ameliorating LIRI was examined. Modulation of β-OHB levels was evaluated by ketone ester supplementation and 3-hydroxybutyrate dehydrogenase 1 (BDH-1) gene knockout, along with the manipulation of the SIRT1-FOXO3 signaling pathway using EX-527 and pCMV-SIRT1 plasmid transfection. This revealed that β-OHB exerts lung-protective and anti-pyroptotic effects, which were mediated through the upregulation of SIRT1 and the enhancement of FOXO3 deacetylation, leading to decreased pyroptosis markers and lung injury. In addition, β-OHB treatment of MH-S cells in vitro showed a concentration-dependent improvement in pyroptosis, linking its therapeutic benefits to specific cell mechanisms. Overall, this study highlights the significance of alveolar macrophage pyroptosis in the exacerbation of LIRI and indicates the potential of β-OHB in mitigating injury by modulating the SIRT1-FOXO3 signaling pathway.
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Affiliation(s)
- Fan Lu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- Department of Pain Management, West China Hospital, Sichuan University, Chengdu, China
| | - Rurong Wang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Cheng
- Laboratory of Anesthesia & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - XueHan Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
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Zhang W, Fan C, Yi Z, Du T, Wang N, Tian W, Pan Q, Ma X, Wang Z. TMEM79 Ameliorates Cerebral Ischemia/Reperfusion Injury Through Regulating Inflammation and Oxidative Stress via the Nrf2/NLRP3 Pathway. Immunol Invest 2024; 53:872-890. [PMID: 38809063 DOI: 10.1080/08820139.2024.2354268] [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] [Indexed: 05/30/2024]
Abstract
BACKGROUND Cerebral ischemia/reperfusion injury (CIRI) is still a complicated disease with high fatality rates worldwide. Transmembrane Protein 79 (TMEM79) regulates inflammation and oxidative stress in some other diseases. METHODS CIRI mouse model was established using C57BL/6J mice through middle cerebral artery occlusion-reperfusion (MCAO/R), and BV2 cells were subjected to oxygen and glucose deprivation/reoxygenation (OGD/R) to simulate CIRI. Brain tissue or BV2 cells were transfected or injected with lentivirus-carried TMEM79 overexpression vector. The impact of TMEM79 on CIRI-triggered oxidative stress was ascertained by dihydroethidium (DHE) staining and examination of oxidative stress indicators. Regulation of TMEM79 in neuronal apoptosis and inflammation was determined using TUNEL staining and ELISA. RESULTS TMEM79 overexpression mitigated neurological deficit induced by MCAO/R and decreased the extent of cerebral infarct. TMEM79 prevented neuronal death in brain tissue of MCAO/R mouse model and suppressed inflammatory response by reducing inflammatory cytokines levels. Moreover, TMEM79 significantly attenuated inflammation and oxidative stress caused by OGD/R in BV2 cells. TMEM79 facilitated the activation of Nrf2 and inhibited NLRP3 and caspase-1 expressions. Rescue experiments indicated that the Nrf2/NLRP3 signaling pathway mediated the mitigative effect of TMEM79 on CIRI in vivo and in vitro. CONCLUSION Overall, TMEM79 was confirmed to attenuate CIRI via regulating the Nrf2/NLRP3 signaling pathway.
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Affiliation(s)
- Wei Zhang
- Fifth Department of Encephalopathy Rehabilitation, The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Chengcheng Fan
- Organization Department of the Party Committee, Department of Basic Sciences of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Zhongxue Yi
- Graduate School, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Tao Du
- Fifth Department of Encephalopathy Rehabilitation, The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Nana Wang
- Fifth Department of Encephalopathy Rehabilitation, The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Weizhu Tian
- Department of Encephalopathy, The Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Qian Pan
- Department of Pathology, College of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Xiande Ma
- Teaching and Experiment Center, Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Zhe Wang
- Department of Pathology, College of Integrated Chinese and Western Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, China
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Liang Q, Liu X, Peng X, Luo T, Su Y, Xu X, Xie H, Gao H, Chen Z, Xie C. Salvianolic acid B in fibrosis treatment: a comprehensive review. Front Pharmacol 2024; 15:1442181. [PMID: 39139645 PMCID: PMC11319160 DOI: 10.3389/fphar.2024.1442181] [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: 06/01/2024] [Accepted: 07/16/2024] [Indexed: 08/15/2024] Open
Abstract
Fibrosis is a public health issue of great concern characterized by the excessive deposition of extracellular matrix, leading to the destruction of parenchymal tissue and organ dysfunction that places a heavy burden on the global healthcare system due to its high incidence, disability, and mortality. Salvianolic acid B (SalB) has positively affected various human diseases, including fibrosis. In this review, we concentrate on the anti-fibrotic effects of SalB from a molecular perspective while providing information on the safety, adverse effects, and drug interactions of SalB. Additionally, we discuss the innovative SalB formulations, which give some references for further investigation and therapeutic use of SalB's anti-fibrotic qualities. Even with the encouraging preclinical data, additional research is required before relevant clinical trials can be conducted. Therefore, we conclude with recommendations for future studies. It is hoped that this review will provide comprehensive new perspectives on future research and product development related to SalB treatment of fibrosis and promote the efficient development of this field.
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Affiliation(s)
- Qingzhi Liang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xiaoqin Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xi Peng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Ting Luo
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yi Su
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xin Xu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Hongyan Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Hong Gao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Zhengtao Chen
- Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, China
| | - Chunguang Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
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Xiang T, Li LZ, Li JX, Chen XY, Guo F, Liu J, Wu YT, Lin L, Xu RH, Wang HP, Ma L, Fu P. Chromodomain Y-like (CDYL) inhibition ameliorates acute kidney injury in mice by regulating tubular pyroptosis. Acta Pharmacol Sin 2024:10.1038/s41401-024-01345-1. [PMID: 39043969 DOI: 10.1038/s41401-024-01345-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 06/27/2024] [Indexed: 07/25/2024] Open
Abstract
Acute kidney injury (AKI) is a common disease, but lacking effective drug treatments. Chromodomain Y-like (CDYL) is a kind of chromodomain protein that has been implicated in transcription regulation of autosomal dominant polycystic kidney disease. Benzo[d]oxazol-2(3H)-one derivative (compound D03) is the first potent and selective small-molecule inhibitor of CDYL (KD = 0.5 μM). In this study, we investigated the expression of CDYL in three different models of cisplatin (Cis)-, lipopolysaccharide (LPS)- and ischemia/reperfusion injury (IRI)-induced AKI mice. By conducting RNA sequencing and difference analysis of kidney samples, we found that tubular CDYL was abnormally and highly expressed in injured kidneys of AKI patients and mice. Overexpression of CDYL in cisplatin-induced AKI mice aggravated tubular injury and pyroptosis via regulating fatty acid binding protein 4 (FABP4)-mediated reactive oxygen species production. Treatment of cisplatin-induced AKI mice with compound D03 (2.5 mg·kg-1·d-1, i.p.) effectively attenuated the kidney dysfunction, pathological damages and tubular pyroptosis without side effects on liver or kidney function and other tissue injuries. Collectively, this study has, for the first time, explored a novel aspect of CDYL for tubular epithelial cell pyroptosis in kidney injury, and confirmed that inhibition of CDYL might be a promising therapeutic strategy against AKI.
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Affiliation(s)
- Ting Xiang
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, and National Key Laboratory of Kidney Diseases, Chengdu, 610041, China
| | - Ling-Zhi Li
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, and National Key Laboratory of Kidney Diseases, Chengdu, 610041, China
| | - Jin-Xi Li
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, and National Key Laboratory of Kidney Diseases, Chengdu, 610041, China
| | - Xin-Yun Chen
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, and National Key Laboratory of Kidney Diseases, Chengdu, 610041, China
| | - Fan Guo
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, and National Key Laboratory of Kidney Diseases, Chengdu, 610041, China
| | - Jing Liu
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, and National Key Laboratory of Kidney Diseases, Chengdu, 610041, China
| | - Yi-Ting Wu
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, and National Key Laboratory of Kidney Diseases, Chengdu, 610041, China
| | - Lin Lin
- West-District Outpatient Department, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Rui-Han Xu
- West China School of Medicine, Sichuan University, Chengdu, 610041, China
| | - Hui-Ping Wang
- West China School of Medicine, Sichuan University, Chengdu, 610041, China
| | - Liang Ma
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, and National Key Laboratory of Kidney Diseases, Chengdu, 610041, China.
| | - Ping Fu
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, and National Key Laboratory of Kidney Diseases, Chengdu, 610041, China
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Zhang D, Jiang H, Yang X, Zheng S, Li Y, Liu S, Xu X. Traditional Chinese Medicine and renal regeneration: experimental evidence and future perspectives. Chin Med 2024; 19:77. [PMID: 38831435 PMCID: PMC11149241 DOI: 10.1186/s13020-024-00935-9] [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: 02/08/2024] [Accepted: 04/22/2024] [Indexed: 06/05/2024] Open
Abstract
Repair of acute kidney injury (AKI) is a typical example of renal regeneration. AKI is characterized by tubular cell death, peritubular capillary (PTC) thinning, and immune system activation. After renal tubule injury, resident renal progenitor cells, or renal tubule dedifferentiation, give rise to renal progenitor cells and repair the damaged renal tubule through proliferation and differentiation. Mesenchymal stem cells (MSCs) also play an important role in renal tubular repair. AKI leads to sparse PTC, affecting the supply of nutrients and oxygen and indirectly aggravating AKI. Therefore, repairing PTC is important for the prognosis of AKI. The activation of the immune system is conducive for the body to clear the necrotic cells and debris generated by AKI; however, if the immune activation is too strong or lengthy, it will cause damage to renal tubule cells or inhibit their repair. Macrophages have been shown to play an important role in the repair of kidney injury. Traditional Chinese medicine (TCM) has unique advantages in the treatment of AKI and a series of studies have been conducted on the topic in recent years. Herein, the role of TCM in promoting the repair of renal injury and its molecular mechanism is discussed from three perspectives: repair of renal tubular epithelial cells, repair of PTC, and regulation of macrophages to provide a reference for the treatment and mechanistic research of AKI.
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Affiliation(s)
- Denglu Zhang
- Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong Key Laboratory of Dominant Diseases of Traditional Chinese Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Huihui Jiang
- Clinical Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xianzhen Yang
- Urinary Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Sanxia Zheng
- Pediatric Department, The Second Affiliated Hospital of Shandong University of Chinese Medicine, Jinan, China
| | - Yi Li
- Department of Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
- Engineering Laboratory of Urinary Organ and Functional Reconstruction of Shandong Province, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Shuai Liu
- Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
- Shandong Key Laboratory of Dominant Diseases of Traditional Chinese Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
| | - Xiangdong Xu
- Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
- Shandong Key Laboratory of Dominant Diseases of Traditional Chinese Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
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Li C, Yu Y, Zhu S, Hu Y, Ling X, Xu L, Zhang H, Guo K. The emerging role of regulated cell death in ischemia and reperfusion-induced acute kidney injury: current evidence and future perspectives. Cell Death Discov 2024; 10:216. [PMID: 38704372 PMCID: PMC11069531 DOI: 10.1038/s41420-024-01979-4] [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: 12/25/2023] [Revised: 04/14/2024] [Accepted: 04/18/2024] [Indexed: 05/06/2024] Open
Abstract
Renal ischemia‒reperfusion injury (IRI) is one of the main causes of acute kidney injury (AKI), which is a potentially life-threatening condition with a high mortality rate. IRI is a complex process involving multiple underlying mechanisms and pathways of cell injury and dysfunction. Additionally, various types of cell death have been linked to IRI, including necroptosis, apoptosis, pyroptosis, and ferroptosis. These processes operate differently and to varying degrees in different patients, but each plays a role in the various pathological conditions of AKI. Advances in understanding the underlying pathophysiology will lead to the development of new therapeutic approaches that hold promise for improving outcomes for patients with AKI. This review provides an overview of the recent research on the molecular mechanisms and pathways underlying IRI-AKI, with a focus on regulated cell death (RCD) forms such as necroptosis, pyroptosis, and ferroptosis. Overall, targeting RCD shows promise as a potential approach to treating IRI-AKI.
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Affiliation(s)
- Chenning Li
- Department of Anesthesiology, Zhongshan Hospital, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
| | - Ying Yu
- Department of Anesthesiology, Zhongshan Hospital, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
| | - Shuainan Zhu
- Department of Anesthesiology, Zhongshan Hospital, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
| | - Yan Hu
- Department of Anesthesiology, Zhongshan Hospital, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
| | - Xiaomin Ling
- Department of Anesthesiology, Zhongshan Hospital, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
| | - Liying Xu
- Department of Anesthesiology, Zhongshan Hospital, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
| | - Hao Zhang
- Department of Anesthesiology, Zhongshan Hospital, Shanghai, China.
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China.
| | - Kefang Guo
- Department of Anesthesiology, Zhongshan Hospital, Shanghai, China.
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China.
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Xiong J, Zhao J. Pyroptosis: The Determinator of Cell Death and Fate in Acute Kidney Injury. KIDNEY DISEASES (BASEL, SWITZERLAND) 2024; 10:118-131. [PMID: 38751798 PMCID: PMC11095617 DOI: 10.1159/000535894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/15/2023] [Indexed: 05/18/2024]
Abstract
Background Acute kidney injury (AKI) is kidney damage that leads to a rapid decline in function. AKI primarily occurs when the tubular epithelium is damaged, causing swelling, loss of brush margin, and eventual apoptosis. Research has shown that tubular epithelial cell damage in AKI is linked to cell cycle arrest, autophagy, and regulation of cell death. Summary Pyroptosis, a type of programmed cell death triggered by inflammation, is believed to play a role in the pathophysiology of AKI. Cumulative evidence has shown that pyroptosis is the main cause of tubular cell death in AKI. Thus, targeted intervention of pyroptosis may be a promising therapeutic approach for AKI. This review delves deep into the cutting-edge research surrounding pyroptosis in the context of AKI, shedding light on its intricate mechanisms and potential implications for clinical practice. Additionally, we explore the exciting realm of potential preclinical treatment options for AKI, aiming to pave the way for future therapeutic advancements. Key Messages Pyroptosis, a highly regulated form of cell death, plays a crucial role in determining the fate of cells during the development of AKI. This intricate process involves the activation of inflammasomes, which are multi-protein complexes that initiate pyroptotic cell death. By understanding the mechanisms underlying pyroptosis, researchers aim to gain insights into the pathogenesis of AKI and potentially identify new therapeutic targets for this condition.
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Affiliation(s)
- Jiachuan Xiong
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Kidney Center of PLA, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, PR China
| | - Jinghong Zhao
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Kidney Center of PLA, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, PR China
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Zhang H, Zheng C, Xu Y, Hu X. Comprehensive molecular and cellular characterization of endoplasmic reticulum stress-related key genes in renal ischemia/reperfusion injury. Front Immunol 2024; 15:1340997. [PMID: 38495888 PMCID: PMC10940334 DOI: 10.3389/fimmu.2024.1340997] [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: 11/19/2023] [Accepted: 02/19/2024] [Indexed: 03/19/2024] Open
Abstract
Background Renal ischemia-reperfusion injury (RIRI) is an inevitable complication in the process of kidney transplantation and lacks specific therapy. The study aims to determine the underlying mechanisms of RIRI to uncover a promising target for efficient renoprotection. Method Four bulk RNA-seq datasets including 495 renal samples of pre- and post-reperfusion were collected from the GEO database. The machine learning algorithms were utilized to ascertain pivotal endoplasmic reticulum stress genes. Then, we incorporated correlation analysis and determined the interaction pathways of these key genes. Considering the heterogeneous nature of bulk-RNA analysis, the single-cell RNA-seq analysis was performed to investigate the mechanisms of key genes at the single-cell level. Besides, 4-PBA was applied to inhibit endoplasmic reticulum stress and hence validate the pathological role of these key genes in RIRI. Finally, three clinical datasets with transcriptomic profiles were used to assess the prognostic role of these key genes in renal allograft outcomes after RIRI. Results In the bulk-RNA analysis, endoplasmic reticulum stress was identified as the top enriched pathway and three endoplasmic reticulum stress-related genes (PPP1R15A, JUN, and ATF3) were ranked as top performers in both LASSO and Boruta analyses. The three genes were found to significantly interact with kidney injury-related pathways, including apoptosis, inflammatory response, oxidative stress, and pyroptosis. For oxidative stress, these genes were more strongly related to oxidative markers compared with antioxidant markers. In single-cell transcriptome, the three genes were primarily upregulated in endothelium, distal convoluted tubule cells, and collecting duct principal cells among 12 cell types of renal tissues in RIRI. Furthermore, distal convoluted tubule cells and collecting duct principal cells exhibited pro-inflammatory status and the highest pyroptosis levels, suggesting their potential as main effectors of three key genes for mediating RIRI-associated injuries. Importantly, inhibition of these key genes using 4-phenyl butyric acid alleviated functional and histological damage in a mouse RIRI model. Finally, the three genes demonstrated highly prognostic value in predicting graft survival outcomes. Conclusion The study identified three key endoplasmic reticulum stress-related genes and demonstrated their prognostic value for graft survival, providing references for individualized clinical prevention and treatment of postoperative complications after renal transplantation.
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Affiliation(s)
- Hao Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Chaoyue Zheng
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Yue Xu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Xiaopeng Hu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
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Chen Z, Wu S, Huang L, Li J, Li X, Zeng Y, Chen Z, Chen M. Colonic microflora and plasma metabolite-based comparative analysis of unilateral ureteral obstruction-induced chronic kidney disease after treatment with the Chinese medicine FuZhengHuaYuJiangZhuTongLuo and AST-120. Heliyon 2024; 10:e24987. [PMID: 38333870 PMCID: PMC10850519 DOI: 10.1016/j.heliyon.2024.e24987] [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: 10/18/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 02/10/2024] Open
Abstract
Background Many researchers have investigated the use of Chinese herbs to delay the progression of chronic kidney disease (CKD) through their effects on colonic microflora and microbiota-derived metabolites. However, whether FuZhengHuaYuJiangZhuTongLuo (FZHY) has effects that are similar to those of AST-120 on CKD needs to be elucidated. Methods In this study, we compared the effects of FZHY and AST-120 on the colonic microbiota and plasma metabolites in the CKD rat model. We developed a unilateral ureteral obstruction (UUO)-induced CKD rat model and then administered FZHY and AST-120 to these model rats. Non-targeted metabolomic LC-MS analysis, 16S rRNA sequencing, and histopathological staining were performed on plasma, stool, and kidney tissues, respectively, and the joint correlation between biomarkers and metabolites of candidate bacteria was analyzed. Results Our results showed that administering FZHY and AST-120 effectively ameliorated UUO-induced abnormal renal function and renal fibrosis and regulated the composition of microbiota and metabolites. Compared to the UUO model group, the p_Firmicutes and o_Peptostreptococcales_Tissierellales were increased, while 14 negative ion metabolites were upregulated and 21 were downregulated after FZHY treatment. Additionally, 40 positive ion metabolites were upregulated and 63 were downregulated. On the other hand, AST-120 treatment resulted in an increase in the levels of g_Prevotellaceae_NK3B31_group and f_Prevotellaceae, as well as 12 upregulated and 23 downregulated negative ion metabolites and 56 upregulated and 63 downregulated positive ion metabolites. Besides, FZHY increased the levels of candidate bacterial biomarkers that were found to be negatively correlated with some poisonous metabolites, such as 4-hydroxyretinoic acid, and positively correlated with beneficial metabolites, such as l-arginine. AST-120 increased the levels of candidate bacterial biomarkers that were negatively correlated with some toxic metabolites, such as glycoursodeoxycholic acid, 4-ethylphenol, and indole-3-acetic acid. Conclusion FZHY and AST-120 effectively reduced kidney damage, in which, the recovery of some dysregulated bacteria and metabolites are probably involved. As their mechanisms of regulation were different, FZHY might play a complementary role to AST-120 in treating CKD.
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Affiliation(s)
- Ziwei Chen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Shaobo Wu
- Department of Nephrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Li Huang
- Department of Nephrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Jing Li
- Department of Nephrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Xueying Li
- Department of Nephrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Yu Zeng
- Department of Clinical Laboratory, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Zejun Chen
- Department of Nephrology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu Traditional Chinese and Western Medicine Hospital, Chengdu First People's Hospital, Chengdu, Sichuan 610072, China
| | - Ming Chen
- Department of Nephrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
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Luo X, Li Y, Wang B, Zhu S, Liu X, Liu X, Qi X, Wu Y. Carnosine alleviates cisplatin-induced acute kidney injury by targeting Caspase-1 regulated pyroptosis. Biomed Pharmacother 2023; 167:115563. [PMID: 37742605 DOI: 10.1016/j.biopha.2023.115563] [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: 07/01/2023] [Revised: 09/13/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023] Open
Abstract
Acute kidney injury (AKI) is a syndrome characterized by rapid loss of renal excretory function. Its underlying mechanisms remain unclear. Pyroptosis, a form of programmed cell death, plays an important role in AKI. It is characterized by cell swelling and membrane rupture, triggering the release of cellular contents and activating robust inflammatory responses. Carnosine, a dipeptide with antioxidant and anti-inflammatory properties, has therapeutic effects in AKI. However, the mechanism by which carnosine treats AKI-associated pyroptosis remains unexplored. In this study, we investigated the protective effect of carnosine on renal tubule cells using in vivo and in vitro models of AKI. We found that carnosine therapy significantly alleviated altered serum biochemical markers and histopathological changes in mice with cisplatin-induced AKI. It also reduced the levels of inflammation and pyroptosis. These results were consistent with those seen in human kidney tubular epithelial cells (HK-2) treated with cisplatin. Through molecular docking and cellular thermal shift assay, we identified caspase-1 as a target of carnosine. By knocking down caspase-1 in HK-2 cells using caspase-1 siRNA, we demonstrated that carnosine did not exhibit a protective role in cisplatin-induced HK-2 cells. This study provides the first evidence that carnosine alleviates damage to kidney tubular epithelial cells by targeting caspase-1 and inhibiting pyroptosis. Therefore, carnosine holds promise as a potential therapeutic agent for AKI, with caspase-1 representing an effective therapeutic target in this pathology.
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Affiliation(s)
- Xiaomei Luo
- Department of Nephropathy, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Yuanyuan Li
- Department of Nephropathy, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Bingdian Wang
- School of Nursing, Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Sai Zhu
- Department of Nephropathy, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Xinran Liu
- Department of Nephropathy, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Xueqi Liu
- Department of Nephropathy, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Xiangming Qi
- Department of Nephropathy, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China
| | - Yonggui Wu
- Department of Nephropathy, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, PR China.
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He G, Chen G, Liu W, Ye D, Liu X, Liang X, Song J. Salvianolic Acid B: A Review of Pharmacological Effects, Safety, Combination Therapy, New Dosage Forms, and Novel Drug Delivery Routes. Pharmaceutics 2023; 15:2235. [PMID: 37765204 PMCID: PMC10538146 DOI: 10.3390/pharmaceutics15092235] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/23/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Salvianolic acid B is extracted from the roots and rhizomes of Danshen (Salvia miltiorrhiza Bge., family Labiatae). It is a water-soluble, weakly acidic drug that has demonstrated antitumor and anti-inflammatory effects on various organs and tissues such as the lung, heart, kidney, intestine, bone, liver, and skin and protective effects in diseases such as depression and spinal cord injury. The mechanisms underlying the protective effects of salvianolic acid B are mainly related to its anti-inflammatory, antioxidant, anti- or pro-apoptotic, anti- or pro-autophagy, anti-fibrotic, and metabolism-regulating functions. Salvianolic acid B can regulate various signaling pathways, cells, and molecules to achieve maximum therapeutic effects. This review summarizes the safety profile, combination therapy potential, and new dosage forms and delivery routes of salvianolic acid B. Although significant research progress has been made, more in-depth pharmacological studies are warranted to identify the mechanism of action, related signaling pathways, more suitable combination drugs, more effective dosage forms, and novel routes of administration of salvianolic acid B.
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Affiliation(s)
- Guannan He
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China; (G.H.); (W.L.); (D.Y.)
| | - Guangfeng Chen
- Department of Geriatrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250355, China;
| | - Weidong Liu
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China; (G.H.); (W.L.); (D.Y.)
| | - Dongxue Ye
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China; (G.H.); (W.L.); (D.Y.)
| | - Xuehuan Liu
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, China;
| | - Xiaodong Liang
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China; (G.H.); (W.L.); (D.Y.)
| | - Jing Song
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China; (G.H.); (W.L.); (D.Y.)
- Shandong Yuze Pharmaceutical Industry Technology Research Institute Co., Ltd., Dezhou 251200, China
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13
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Xu J, Sun X, Qin F, Wang X, Chen Q, Yan R. Protective effects of salvianolic acid B on intestinal ischemia/reperfusion injury in rats by regulating the AhR/IL-22/STAT6 axis. J Recept Signal Transduct Res 2023; 43:73-82. [PMID: 37387514 DOI: 10.1080/10799893.2023.2204949] [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: 08/12/2022] [Accepted: 03/13/2023] [Indexed: 07/01/2023]
Abstract
PURPOSE Intestinal ischemia/reperfusion (I/R) injury (IIRI) is associated with high morbidity and mortality. Salvianolic acid B (Sal-B) could exert neuroprotective effects on reperfusion injury after cerebral vascular occlusion, but its effect on IIRI remains unclear. This study set out to investigate the protective effects of Sal-B on IIRI in rats. METHODS The rat IIRI model was established by occluding the superior mesenteric artery and reperfusion, and they were pretreated with Sal-B and aryl hydrocarbon receptor (AhR) antagonist CH-223191 before surgery. Pathological changes in rat ileum, IIRI degree, and intestinal cell apoptosis were evaluated through hematoxylin-eosin staining, Chiu's score scale, and TUNEL staining, together with the determination of caspase-3, AhR protein level in the nucleus, and STAT6 phosphorylation by Western blotting. The levels of inflammatory cytokines (IL-1β/IL-6/TNF-α) and IL-22 were determined by ELISA and RT-qPCR. The contents of superoxide dismutase (SOD), glutathione (GSH), and malondialdehyde (MDA) in intestinal tissues were determined by spectrophotometry. RESULTS Sal-B alleviated IIRI in rats, evidenced by slight villi shedding and villi edema, reduced Chiu's score, and diminished the number of TUNEL-positive cells and caspase-3 expression. SAL-B alleviated inflammation and oxidative stress (OS) responses induced by IIRI. Sal-B promoted IL-22 secretion by activating AhR in intestinal tissue after IIRI. Inhibition of AhR activation partially reversed the protective effect of Sal-B on IIRI. Sal-B promoted STAT6 phosphorylation by activating the AhR/IL-22 axis. CONCLUSION Sal-B plays a protective role against IIRI in rats by activating the AhR/IL-22/STAT6 axis, which may be achieved by reducing the intestinal inflammatory response and OS responses.
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Affiliation(s)
- Jinyao Xu
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, China
| | - Xiangjun Sun
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, China
| | - Feng Qin
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, China
| | - Xufeng Wang
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, China
| | - Qian Chen
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, China
| | - Ruicheng Yan
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, China
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Li Y, Tu Z, Chen F, Yang X, Deng R, Su F, Cheng Z, Li S, Ong SB, Wang D, Chen Y, Xiang Y. Anti-inflammatory effect of Danhong injection through inhibition of GSDMD-mediated pyroptosis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 113:154743. [PMID: 36893672 DOI: 10.1016/j.phymed.2023.154743] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/16/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Pyroptosis is an inflammatory form of cell death that has been implicated in various infectious and non-infectious diseases. Gasdermin family proteins are the key executors of pyroptotic cell death, thus they are considered as novel therapeutic targets for inflammatory diseases. However, only limited gasdermin specific inhibitors have been identified to date. Traditional Chinese medicines have been applied in clinic for centuries and exhibit potential in anti-inflammation and anti-pyroptosis. We attempted to find candidate Chinese botanical drugs which specifically target gasdermin D (GSDMD) and inhibit pyroptosis. METHODS In this study, we performed high-throughput screening using a botanical drug library to identify pyroptosis specific inhibitors. The assay was based on a cell pyroptosis model induced by lipopolysaccharides (LPS) and nigericin. Cell pyroptosis levels were then evaluated by cell cytotoxicity assay, propidium iodide (PI) staining and immunoblotting. We then overexpressed GSDMD-N in cell lines to investigate the direct inhibitory effect of the drug to GSDMD-N oligomerization. Mass spectrometry studies were applied to identify the active components of the botanical drug. Finally, a mouse model of sepsis and a mouse model of diabetic myocardial infarction were constructed to verify the protective effect of the drug in disease models of inflammation. RESULTS High-throughput screening identified Danhong injection (DHI) as a pyroptosis inhibitor. DHI remarkably inhibited pyroptotic cell death in a murine macrophage cell line and bone marrow-derived macrophages. Molecular assays demonstrated the direct blockade of GSDMD-N oligomerization and pore formation by DHI. Mass spectrometry studies identified the major active components of DHI, and further activity assays revealed salvianolic acid E (SAE) as the most potent molecule among these components, and SAE has a strong binding affinity to mouse GSDMD Cys192. We further demonstrated the protective effects of DHI in mouse sepsis and mouse myocardial infarction with type 2 diabetes. CONCLUSION These findings provide new insights for drug development from Chinese herbal medicine like DHI against diabetic myocardial injury and sepsis through blocking GSDMD-mediated macrophage pyroptosis.
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Affiliation(s)
- Yujuan Li
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China; Institute of Biophysics, Chinese Academy of Science, Beijing 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zizhuo Tu
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China
| | - Feng Chen
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China
| | - Xingbo Yang
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China
| | - Ruhua Deng
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China
| | - Fanghua Su
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China
| | - Zhiyang Cheng
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China
| | - Shengxuan Li
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China
| | - Sang-Bing Ong
- Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong (CUHK), 999077, Hong Kong SAR; Centre for Cardiovascular Genomics and Medicine (CCGM), Lui Che Woo Institute Innovative Medicine, Chinese University of Hong Kong (CUHK), 999077, Hong Kong SAR
| | - Dandan Wang
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China
| | - Yang Chen
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China
| | - Yaozu Xiang
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, School of Life Sciences and Technology, Shanghai Fourth People's Hospital, Tongji University, Shanghai 200434, China; Institute of Biophysics, Chinese Academy of Science, Beijing 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Arrhythmias of the Ministry of Education of China, School of Life Sciences and Technology, Shanghai East Hospital, Tongji University, Shanghai 20092, China.
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15
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Chen QQ, Liu K, Shi N, Ma G, Wang P, Xie HM, Jin SJ, Wei TT, Yu XY, Wang Y, Zhang JY, Li P, Qi LW, Zhang L. Neuraminidase 1 promotes renal fibrosis development in male mice. Nat Commun 2023; 14:1713. [PMID: 36973294 PMCID: PMC10043283 DOI: 10.1038/s41467-023-37450-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
The functions of the influenza virus neuraminidase has been well documented but those of the mammalian neuraminidases remain less explored. Here, we characterize the role of neuraminidase 1 (NEU1) in unilateral ureteral obstruction (UUO) and folic acid (FA)-induced renal fibrosis mouse models. We find that NEU1 is significantly upregulated in the fibrotic kidneys of patients and mice. Functionally, tubular epithelial cell-specific NEU1 knockout inhibits epithelial-to-mesenchymal transition, inflammatory cytokines production, and collagen deposition in mice. Conversely, NEU1 overexpression exacerbates progressive renal fibrosis. Mechanistically, NEU1 interacts with TGFβ type I receptor ALK5 at the 160-200aa region and stabilizes ALK5 leading to SMAD2/3 activation. Salvianolic acid B, a component of Salvia miltiorrhiza, is found to strongly bind to NEU1 and effectively protect mice from renal fibrosis in a NEU1-dependent manner. Collectively, this study characterizes a promotor role for NEU1 in renal fibrosis and suggests a potential avenue of targeting NEU1 to treat kidney diseases.
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Affiliation(s)
- Qian-Qian Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Kang Liu
- Department of Nephrology, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Ning Shi
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Gaoxiang Ma
- Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, 211198, China
| | - Peipei Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Hua-Mei Xie
- Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, 211198, China
| | - Si-Jia Jin
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Ting-Ting Wei
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Xiang-Yu Yu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Yi Wang
- Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, 211198, China
| | - Jun-Yuan Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Lian-Wen Qi
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China.
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
- Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, 211198, China.
| | - Lei Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China.
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
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Astragaloside IV: A promising natural neuroprotective agent for neurological disorders. Biomed Pharmacother 2023; 159:114229. [PMID: 36652731 DOI: 10.1016/j.biopha.2023.114229] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/05/2023] [Accepted: 01/05/2023] [Indexed: 01/18/2023] Open
Abstract
Neurological disorders are characterized by high morbidity, disability, and mortality rates, which seriously threaten human health. However, clinically satisfactory agents for treatment are still currently lacking. Therefore, finding neuroprotective agents with minimum side effects and better efficacy is a challenge. Chinese herbal medicine, particularly natural preparations extracted from herbs or plants, has become an unparalleled resource for discovering new agent candidates. Astragali Radix is an important Qi tonic drug in traditional Chinese medicine and has a long medicinal history. As a natural medicine, it has a good prevention and treatment effect on neurological disorders. Here, the role and mechanism of astragaloside IV in the treatment of neurological disorders were evaluated and discussed through previous research results. Related information from major scientific databases, such as PubMed, MEDLINE, Web of Science, ScienceDirect, Embase, BIOSIS Previews, and the Cochrane Central Register of Controlled Trials and Cochrane Library, covering between 2001 and 2021 was compiled, using "Astragaloside IV" and "Neurological disorders," "Astragaloside IV," and "Neurodegenerative diseases" as reference terms. By summarizing previous research results, we found that astragaloside IV may play a neuroprotective role through various mechanisms: anti-inflammatory, anti-oxidative, anti-apoptotic protection of nerve cells and regulation of nerve growth factor, as well as by inhibiting neurodegeneration and promoting nerve regeneration. Astragaloside IV is a promising natural neuroprotective agent. By determining its pharmacological mechanism, astragaloside IV may be a new candidate drug for the treatment of neurological disorders.
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Su J, He T, You J, Cao J, Wang Q, Cao S, Mei Q, Zeng J, Liu L. Therapeutic effect and underlying mechanism of Shenkang injection against cisplatin-induced acute kidney injury in mice. JOURNAL OF ETHNOPHARMACOLOGY 2023; 301:115805. [PMID: 36216195 DOI: 10.1016/j.jep.2022.115805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/28/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shenkang injection (SKI), a Chinese patent medicine injection, has been approved for the treatment of chronic kidney disease (CKD) due to its definite clinical therapeutic efficacy. However, the effect and associated underlying mechanism of Shenkang injection against cisplatin (CDDP)-induced acute kidney injury (AKI) has not yet been well elucidated. AIM OF THE STUDY This study aims to investigate the therapeutic effect and associated underlying mechanism of Shenkang injection against CDDP-induced AKI. MATERIALS AND METHODS We established a CDDP-induced AKI mouse model to evaluate renal function by biochemical markers measurement and to observe histopathological alterations by haemotoxylin and eosin (HE)-staining sections of renal. In addition, the distribution of representative components of SKI in the kidneys of mice was evaluated by liquid chromatography tandem mass spectrometry (LC-MS/MS). Furthermore, the degree of oxidative stress and inflammation were assessed by detecting the levels of inflammatory cytokines and oxidants, while the related mechanisms were elucidated by network pharmacology. RESULTS CDDP could induce excessive inflammation and severe injury to the kidneys of mice. However, SKI significantly ameliorated the kidney damages and improved the renal function by reducing the levels of renal function markers (SCr, BUN and urine protein), and inhibiting the production of inflammatory cytokines IL-34, IL-6 and TNF-α. SKI repaired oxidative balance through up-regulation of antioxidants SOD and GSH and down-regulated oxidants MDA. Moreover, 4 components from SKI were detected in the kidney by LC-MS/MS quantification. In addition, pharmacology network indicated the PI3K/AKT, TNF, MAPK, and p53 were the possible signaling pathways for the therapeutic effect of SKI against CDDP-induced AKI, which were related to inflammation, oxidative stress and apoptosis. CONCLUSION In the present study, we for the first time demonstrated that SKI alleviates CDDP-induced nephrotoxicity by antioxidant and anti-inflammation via regulating PI3K/AKT, MAPK, TNF, and p53 signaling pathways. The study may provide a scientific rationale for the clinical indication of SKI.
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Affiliation(s)
- Jiahan Su
- Department of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China; Luzhou New Drug Evaluation and Research Center, Luzhou, Sichuan, 646000, China
| | - Tingting He
- Department of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China; Luzhou New Drug Evaluation and Research Center, Luzhou, Sichuan, 646000, China
| | - Jing You
- Department of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China; The People's Hospital of DaZhu, Dazhou, Sichuan, 635000, China
| | - Jingjie Cao
- Department of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Qianru Wang
- Department of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Shousong Cao
- Department of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Qibing Mei
- Department of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China; Luzhou New Drug Evaluation and Research Center, Luzhou, Sichuan, 646000, China
| | - Jing Zeng
- Department of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China.
| | - Li Liu
- Department of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China.
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Zheng Y, Xu X, Chi F, Cong N. Pyroptosis: A Newly Discovered Therapeutic Target for Ischemia-Reperfusion Injury. Biomolecules 2022; 12:1625. [PMID: 36358975 PMCID: PMC9687982 DOI: 10.3390/biom12111625] [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: 10/01/2022] [Revised: 10/29/2022] [Accepted: 10/30/2022] [Indexed: 09/15/2023] Open
Abstract
Ischemia-reperfusion (I/R) injury, uncommon among patients suffering from myocardial infarction, stroke, or acute kidney injury, can result in cell death and organ dysfunction. Previous studies have shown that different types of cell death, including apoptosis, necrosis, and autophagy, can occur during I/R injury. Pyroptosis, which is characterized by cell membrane pore formation, pro-inflammatory cytokine release, and cell burst, and which differentiates itself from apoptosis and necroptosis, has been found to be closely related to I/R injury. Therefore, targeting the signaling pathways and key regulators of pyroptosis may be favorable for the treatment of I/R injury, which is far from adequate at present. This review summarizes the current status of pyroptosis and its connection to I/R in different organs, as well as potential treatment strategies targeting it to combat I/R injury.
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Affiliation(s)
- Yu Zheng
- Department of Otorhinolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
- Shanghai Clinical Medical Center of Hearing Medicine, Shanghai 200031, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai 200031, China
- Research Institute of Otorhinolaryngology, Fudan University, Shanghai 200031, China
| | - Xinda Xu
- Department of Otorhinolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
- Shanghai Clinical Medical Center of Hearing Medicine, Shanghai 200031, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai 200031, China
- Research Institute of Otorhinolaryngology, Fudan University, Shanghai 200031, China
| | - Fanglu Chi
- Department of Otorhinolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
- Shanghai Clinical Medical Center of Hearing Medicine, Shanghai 200031, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai 200031, China
- Research Institute of Otorhinolaryngology, Fudan University, Shanghai 200031, China
| | - Ning Cong
- Department of Otorhinolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
- Shanghai Clinical Medical Center of Hearing Medicine, Shanghai 200031, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai 200031, China
- Research Institute of Otorhinolaryngology, Fudan University, Shanghai 200031, China
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19
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Uysal E, Dokur M, Kucukdurmaz F, Altınay S, Polat S, Batcıoglu K, Sezgın E, Sapmaz Erçakallı T, Yaylalı A, Yılmaztekin Y, Cetın Z, Saygılı İ, Barut O, Kazımoglu H, Maralcan G, Koc S, Guney T, Eser N, Sökücü M, Dokur SN. Targeting the PANoptosome with 3,4-Methylenedioxy-β-Nitrostyrene, Reduces PANoptosis and Protects the Kidney against Renal İschemia-Reperfusion Injury. J INVEST SURG 2022; 35:1824-1835. [PMID: 36170987 DOI: 10.1080/08941939.2022.2128117] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/23/2022] [Accepted: 09/17/2022] [Indexed: 10/14/2022]
Abstract
OBJECTIVES The objectives of this study were a) to investigate the effect of targeting the PANoptosome with 3,4-methylenedioxy-β-nitrostyrene (MNS) on PANoptosis in the Renal ischemia-reperfussion (RIR) model b) to investigate the kidney protective effect of MNS toward RIR injury. METHODS Thirty-two rats were divided into four groups randomly. The groups were assigned as Control, Sham, DMSO (dimethyl sulfoxide) and MNS groups. The rats in the MNS group were intraperitoneally given 20 mg/kg of MNS 30 minutes before reperfusion. 2% DMSO solvent that dissolves MNS were given to the rats in DMSO group. Left nephrectomy was performed on the rats under anesthesia at the 6th hour after reperfusion. Glutathione peroxidase (GPx), malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD) and 8-Okso-2'-deoksiguanozin (8-OHdG) levels were measured. Immunohistochemical analysis, electron microscopic and histological examinations were carried out in the tissues. RESULTS Total tubular injury score was lower in the MNS group (p < 0.001). Caspase-3, Gasdermin D and MLK (Mixed Lineage Kinase Domain Like Pseudokinase) expressions were considerably decreased in the MNS group (p < 0.001). Apoptotic index (AI) was found to be low in the MNS group (p < 0.001). CAT and SOD levels were higher in the MNS Group (p = 0.006, p = 0.0004, respectively). GPx, MDA, and 8-OH-dG levels were similar (p > 0.05) in all groups. MNS considerably improved the tissue structure, based on the electron microscopic analysis. CONCLUSIONS Our results suggested that MNS administrated before the reperfusion reduces pyroptosis, apoptosis and necroptosis. These findings suggest that MNS significantly protects the kidney against RIR injury by reducing PANoptosis as a result of specific inhibition of Nod-like receptor pyrin domain-containing 3 (NLRP 3), one of the PANoptosome proteins.
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Affiliation(s)
- Erdal Uysal
- Department of General Surgery, Sanko University School of Medicine, Gaziantep, Turkey
| | - Mehmet Dokur
- Department of Emergency Medicine, Biruni University Faculty of Medicine, İstanbul, Turkey
| | - Faruk Kucukdurmaz
- Department of Urology, Sanko University School of Medicine, Gaziantep, Turkey
| | - Serdar Altınay
- Deparment of Pathology, Bakırköy Dr Sadi Konuk Health Aplication and Research Center, University of Health Sciences, School of Medicine, İstanbul, Turkey
| | - Sait Polat
- Department of Histology and Embryology, Çukurova University, Faculty of Medicine, Adana, Turkey
| | - Kadir Batcıoglu
- Department of Biochemistry Malatya, Inonu University Faculty of Pharmacy, Battalgazi, Turkey
| | - Efe Sezgın
- Izmir Yuksek Teknoloji Enstitusu, Laboratory of Nutrigenomics and Epidemiology, Food Engineering, Izmir Institute of Technology, İzmir, Turkey
| | - Tuğçe Sapmaz Erçakallı
- Department of Histology and Embryology, Çukurova University, Faculty of Medicine, Adana, Turkey
| | - Aslı Yaylalı
- Faculty of Medicine, Department of Histology and Embryology and IVF Center, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
| | - Yakup Yılmaztekin
- Faculty of Pharmacy Department of Biochemistry, Inonu University, Malatya, Turkey
| | - Zafer Cetın
- Department of Medical Biology, Sanko University School of Medicine, Gaziantep, Turkey
| | - İlker Saygılı
- Department of Biochemistry, Sanko University School of Medicine, Gaziantep, Turkey
| | - Osman Barut
- Department of Urology, Kahramanmaras Sutcu Imam University Faculty of Medicine, Kahramanmaras, Turkey
| | - Hatem Kazımoglu
- Department of Urology, Sanko University School of Medicine, Gaziantep, Turkey
| | - Gokturk Maralcan
- Department of General Surgery, Sanko University School of Medicine, Gaziantep, Turkey
| | - Suna Koc
- Department of Anesthesiology and Reanimation, Biruni University Faculty of Medicine, Istanbul, Turkey
| | - Turkan Guney
- Department of Medical Biochemistry, Beykent University, Faculty of Medicine, Istanbul, Turkey
| | - Nadire Eser
- Department of Pharmacology, Kahramanmaraş Sütçü İmam University, Faculty of Medicine, Kahramanmaraş, Turkey
| | - Mehmet Sökücü
- Department of Patology, Sanko University School of Medicine, Gaziantep, Turkey
| | - Sema Nur Dokur
- Faculty of Medicine, Biruni University, Istanbul, Turkey
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20
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Wan J, Liu D, Pan S, Zhou S, Liu Z. NLRP3-mediated pyroptosis in diabetic nephropathy. Front Pharmacol 2022; 13:998574. [PMID: 36304156 PMCID: PMC9593054 DOI: 10.3389/fphar.2022.998574] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Diabetic nephropathy (DN) is the main cause of end-stage renal disease (ESRD), which is characterized by a series of abnormal changes such as glomerulosclerosis, podocyte loss, renal tubular atrophy and excessive deposition of extracellular matrix. Simultaneously, the occurrence of inflammatory reaction can promote the aggravation of DN-induced kidney injury. The most important processes in the canonical inflammasome pathway are inflammasome activation and membrane pore formation mediated by gasdermin family. Converging studies shows that pyroptosis can occur in renal intrinsic cells and participate in the development of DN, and its activation mechanism involves a variety of signaling pathways. Meanwhile, the activation of the NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome can not only lead to the occurrence of inflammatory response, but also induce pyroptosis. In addition, a number of drugs targeting pyroptosis-associated proteins have been shown to have potential for treating DN. Consequently, the pathogenesis of pyroptosis and several possible activation pathways of NLRP3 inflammasome were reviewed, and the potential drugs used to treat pyroptosis in DN were summarized in this review. Although relevant studies are still not thorough and comprehensive, these findings still have certain reference value for the understanding, treatment and prognosis of DN.
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Affiliation(s)
- Jiayi Wan
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
| | - Dongwei Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
| | - Shaokang Pan
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
| | - Sijie Zhou
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
- *Correspondence: Sijie Zhou, ; Zhangsuo Liu,
| | - Zhangsuo Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center for Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
- *Correspondence: Sijie Zhou, ; Zhangsuo Liu,
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Inhibition of the NLRP3/caspase-1 signaling cascades ameliorates ketamine-induced renal injury and pyroptosis in neonatal rats. Biomed Pharmacother 2022; 152:113229. [PMID: 35679721 DOI: 10.1016/j.biopha.2022.113229] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/22/2022] [Accepted: 05/31/2022] [Indexed: 11/21/2022] Open
Abstract
Ketamine is a widely-used anesthetic in the field of pediatrics and obstetrics. Multiple studies have revealed that ketamine causes neurotoxicity in developing animals. However, further studies are needed to determine whether clinical doses of ketamine (20 mg/kg) are able to cause kidney damage in developing animals. Herein, we investigated the effects of continuous ketamine exposure on kidney injury and pyroptosis in seven-day-old rats. Serum renal function indicators, renal histopathological analysis, pyroptosis, as well as oxidative stress indicators, were tested. Additionally, the NLRP3 inhibitor MCC950 and the Caspase-1 inhibitor VX765 were used to evaluate the role of the NLRP3/Caspase-1 axis in ketamine-induced kidney injury among developing rats. Our findings indicate that ketamine exposure causes renal histopathological injury, increased the levels of blood urea nitrogen (BUN) and creatinine (Cre), and led to upregulation in the levels of pyroptosis. Furthermore, we found that ketamine induced an increase in levels of reactive oxygen species (ROS) and malonaldehyde (MDA), as well as a decrease in the content of glutathione (GSH) and catalase (CAT) in the kidneys of neonatal rats. Moreover, targeting NLRP3 and caspase-1 with MCC950 or VX765 improved pyroptosis and reduced renal damage after continuous ketamine exposure. In conclusion, this study suggested that continued exposure to ketamine caused kidney damage among neonatal rats and that the NLRP3/Caspase-1 axis-related pyroptosis may be involved in this process.
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22
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Jia Q, Zhang X, Hao G, Zhao Y, Lowe S, Han L, Qin J. Tongluo Yishen Decoction Ameliorates Renal Fibrosis via NLRP3-Mediated Pyroptosis In Vivo and In Vitro. Front Pharmacol 2022; 13:936853. [PMID: 35873572 PMCID: PMC9298980 DOI: 10.3389/fphar.2022.936853] [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: 05/05/2022] [Accepted: 06/20/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose: In this study, we investigated the mechanism of Tongluo Yishen (TLYS) decoction in more detail, from the perspective of pyroptosis in the unilateral ureteral ligation (UUO) model and the hypoxia-induced renal tubular epithelial (NRK-52E) cell. Method: The UUO model was used, and after 14 days of TLYS intervention, rats were tested for blood creatinine and urea nitrogen, HE staining was used to observe the pathological changes in the kidney, Masson staining was used to assess the degree of interstitial fibrosis, western blot was used to detect the changes of α-smooth muscle actin (α-SMA) protein expression level, immunohistochemistry and western blot detected the changes in protein expression levels of NOD-like receptor protein 3 inflammasome (NLRP3), gasdermin D (GSDMD), cysteinyl aspartate specific proteinase (caspase-1), interleukin 18 (IL-18) and interleukin 1β (I L-1β). A hypoxia model was created using NRK-52E cell, and after different concentrations of TLYS decoction intervention, the changes in the expression levels of pyroptosis were used with immunofluorescence and western blot methods. Results: TLYS decoction improved renal function, delayed the advancement of renal interstitial fibrosis, and inhibited pyroptosis in UUO rats. Furthermore, we observed that TLYS can mitigate hypoxia-induced NRK-52E cell damage via the suppression of the NLRP3-mediated pyroptosis. Conclusion: TLYS decoction exert renoprotective effects by inhibiting NLRP3-mediated pyroptosis.
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Affiliation(s)
- Qi Jia
- Department of Nephropathy, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xiaoyu Zhang
- Department of Nephropathy, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Gaimei Hao
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yun Zhao
- Department of Nephropathy, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Scott Lowe
- Kansas City University of Medicine and Biosciences, College of Osteopathic Medicine, Kansas City, MO, United States
| | - Lin Han
- School of Basic Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jianguo Qin
- Department of Nephropathy, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
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23
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Sun D, Cui S, Ma H, Zhu P, Li N, Zhang X, Zhang L, Xuan L, Li J. Salvianolate ameliorates renal tubular injury through the Keap1/Nrf2/ARE pathway in mouse kidney ischemia-reperfusion injury. JOURNAL OF ETHNOPHARMACOLOGY 2022; 293:115331. [PMID: 35489662 DOI: 10.1016/j.jep.2022.115331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/19/2022] [Accepted: 04/25/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acute kidney injury (AKI) is a common clinical disease characterized by rapid loss of renal function. Salvianolate is a prescribed Chinese medicine derived from traditional Chinese medicine Salvia miltiorrhiza bunge that possesses many pharmacological effects, the active components extracted from Salvia miltiorrhiza bunge have been proved to protect ischemia-reperfusion (I/R)-AKI. AIM OF THE STUDY This study aims to validate the therapeutic effect of SAL on I/R-AKI, and explore its potential pharmacological mechanism. MATERIALS AND METHODS Mice were pretreated with/without salvianolate (10, 30, and 90 mg/kg) before renal ischemia-reperfusion operation. Serum creatinine, BUN, and H&E staining were performed to evaluate renal function. Immunofluorescence analysis was conducted to measure renal tubular injury including inflammatory factors and peroxide level. Apoptosis of the kidney tissues was determined by TUNEL assay. Keap1-Nrf2-ARE and apoptosis signaling pathways were measured by Western blot, RT-PCR, and YO-PRO-1 staining in kidneys or NRK52E cells. RESULTS Pretreatment with SAL effectively alleviated renal function and ameliorated epithelial tubular injury, oxidative stress, and inflammatory response. Furthermore, the mechanistic study demonstrated that the SAL exerts anti-apoptotic effects through activation of the Keap1-Nrf2-ARE signaling pathway in renal tubular cells. CONCLUSION These findings indicate the therapeutic benefit of salvianolate in the protection of renal injury from ischemia-reperfusion, and strengthen the evidence for the AKI treatment strategy by the anti-oxidative stress response, suggesting that SAL may be a potential agent for the treatment of AKI.
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Affiliation(s)
- Dan Sun
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China; State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Shichao Cui
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Haijian Ma
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Pengfei Zhu
- The First Clinical Medical School, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ni Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Xinwen Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Lina Zhang
- Shanghai Green Valley Pharmaceutical Co.,Ltd, Shanghai, China
| | - Lijiang Xuan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Jingya Li
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China; State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.
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MSC-Derived Extracellular Vesicles Activate Mitophagy to Alleviate Renal Ischemia/Reperfusion Injury via the miR-223-3p/NLRP3 Axis. Stem Cells Int 2022; 2022:6852661. [PMID: 35646124 PMCID: PMC9142309 DOI: 10.1155/2022/6852661] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 04/30/2022] [Indexed: 11/29/2022] Open
Abstract
Background MSC-derived extracellular vehicles (EVs) exhibit a protective functional role in renal ischemia/reperfusion injury (RIRI). Recent studies have revealed that mitophagy could be a potential target process in the treatment of RIRI. However, whether MSC-derived EVs are involved in the regulation of mitophagy in RIRI remains largely unknown to date. Methods RIRI model was established in vivo in mice by subjecting them to renal ischemia/reperfusion. TCMK-1 cells were subjected to hypoxia/reoxygenation (H/R) stimulation to mimic RIRI in vitro. BMSCs and BMSC-derived EVs were isolated and identified. Renal injury was assessed using H&E staining. The qPCR and western blot analyses were conducted to detect the mRNA and protein levels. Apoptosis was evaluated using the TUNEL assay and flow cytometry analysis. The EVs, autophagosomes, and mitochondria were observed using TEM. The colocalization of autophagosomes with mitochondria was confirmed through the confocal assay. The direct binding of miR-223-3p to NLRP3 was validated through the dual-luciferase assay. Results BMSCs and BMSC-derived EVs were successfully isolated from mice and identified. The protective effect of BMSC-derived EVs against RIRI was validated both in vitro and in vivo, which was indicated by a decrease in apoptosis and inflammasome activation and an increase in mitophagy. However, this protective effect was impaired in the miR-223-3p-depleted EVs, suggesting that miR-223-3p mediated this protective effect. Further mechanistic investigation revealed that miR-223-3p suppressed inflammasome activation to enhance mitophagy by directly targeting NLRP3. Conclusion In conclusion, the protective role of BMSC-derived EVs and exosome-delivered miR-223-3p in RIRI was validated. Exogenous miR-223-3p directly targeted NLRP3 to attenuate inflammasome activation, thereby promoting mitophagy.
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Hu Y, Shi Y, Chen H, Tao M, Zhou X, Li J, Ma X, Wang Y, Liu N. Blockade of Autophagy Prevents the Progression of Hyperuricemic Nephropathy Through Inhibiting NLRP3 Inflammasome-Mediated Pyroptosis. Front Immunol 2022; 13:858494. [PMID: 35309342 PMCID: PMC8924517 DOI: 10.3389/fimmu.2022.858494] [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: 01/20/2022] [Accepted: 02/14/2022] [Indexed: 12/30/2022] Open
Abstract
Hyperuricemia has become a common metabolic disease, and is a risk factor for multiple diseases, including chronic kidney disease. Our recent study indicated that following persistent uric acid stimulation, autophagy was activated in rats of hyperuricemic nephropathy (HN) and facilitated the development of renal fibrosis. Nevertheless, the potential mechanism by which autophagy promoted the progression of HN is still not fully elucidated. Thus, in the current study, we investigated the mechanisms of autophagy inhibition on the development of HN. Our data showed that autophagy was activated in human renal tubular cell lines (HK-2) exposure to uric acid. Inhibition of autophagy with 3-methyladenine (3-MA) and transfected with Beclin-1 siRNA prevented uric acid-induced upregulation of α-SMA, Collagen I and Collagen III in HK-2 cells. Moreover, uric acid upregulated autophagy via promoting the p53 pathway. In vivo, we showed that hyperuricemic injury induced the activation of NLRP3 inflammasome and pyroptosis, as evidenced by cleavage of caspase-1 and caspase-11, activation of gasdermin D (GSDMD) and the release of IL-1β and IL-18. Treatment with autophagy inhibitor 3-MA alleviated aforementioned phenomenon. Stimulation with uric acid in HK-2 cells also resulted in NLRP3 inflammasome activation and pyroptotic cell death, however treatment with 3-MA prevented all these responses. Mechanistically, we showed that the elevation of autophagy and degradation of autophagolysosomes resulted in the release of cathepsin B (CTSB), which is related to the activation of NLRP3 inflammasome. CTSB siRNA can inhibit the activation of NLRP3 inflammasome and pyroptosis. Collectively, our results indicate that autophagy inhibition protects against HN through inhibiting NLRP3 inflammasome-mediated pyroptosis. What’s more, blockade the release of CTSB plays a crucial role in this process. Thus, inhibition of autophagy may be a promising therapeutic strategy for hyperuricemic nephropathy.
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Affiliation(s)
- Yan Hu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yingfeng Shi
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hui Chen
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Min Tao
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xun Zhou
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jinqing Li
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaoyan Ma
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Wang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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26
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Teng Y, Li N, Wang Y, Sun S, Hou J, Chen Y, Pan H. NRF2 Inhibits Cardiomyocyte Pyroptosis Via Regulating CTRP1 in Sepsis-Induced Myocardial Injury. Shock 2022; 57:590-599. [PMID: 34907120 DOI: 10.1097/shk.0000000000001901] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT C1q/tumor necrosis factor-related protein 1 (CTRP1) has been demonstrated as a crucial regulator in myocardial injury (MI). The present study aims to evaluate the mechanism of CTRP1 in sepsis-induced MI. The septic mouse model was established via cecal ligation and puncture and the in vitro cell model was established via lipopolysaccharide treatment. The mouse survival rate within 96 h was recorded. Morphologic changes of cardiomyocytes were observed and cell viability and cardiac functions were detected. CTRP1 and nuclear factor erythroid 2-related factor (Nrf2) expressions, creatine troponin-T, and creatine phosphokinase isoenzyme levels, and expressions of pyroptotic markers were determined. The binding relationship between Nrf2 and the CTRP1 promotor was predicted and verified. Rescue experiments were designed to confirm the role of CTRP1. CTRP1 was poorly expressed in septic mice. CTRP1 overexpression inhibited cardiomyocyte pyroptosis and improved cardiac functions, MI, and survival rate in septic mice. Nrf2was decreased in cecal ligation and puncture -treated mice. Nrf2 overexpression promoted CTRP1 expression via binding to the CTRP1 promotor and suppressed cardiomyocyte pyroptosis. CTRP1 downregulation abolished the inhibitory effect of Nrf2 overexpression on cardiomyocyte pyroptosis. Overall, Nrf2 promoted CTRP1 expression via binding to the CTRP1 promotor to inhibit cardiomyocyte pyroptosis, thereby alleviating MI in septic mice.
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Affiliation(s)
- Yan Teng
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an City, Shaanxi Province, PR China
| | - Ningjun Li
- Department of Intensive Care Unit, The Fifth Affiliated Hospital of SUN YAT-SEN University, Zhuhai City, Guangdong Province, PR China
| | - Yi Wang
- Department of Intensive Care Unit, The Fifth Affiliated Hospital of SUN YAT-SEN University, Zhuhai City, Guangdong Province, PR China
| | - Shuling Sun
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an City, Shaanxi Province, PR China
| | - Junxia Hou
- Department of Critical Care Medicine, Chang'an District Hospital of the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an City, Shaanxi Province, PR China
| | - Yahui Chen
- Department of Critical Care Medicine, Chang'an District Hospital of the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an City, Shaanxi Province, PR China
| | - Haiyan Pan
- Department of Intensive Care Unit, The Fifth Affiliated Hospital of SUN YAT-SEN University, Zhuhai City, Guangdong Province, PR China
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27
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Zheng Z, Tsvetkov D, Bartolomaeus TUP, Erdogan C, Krügel U, Schleifenbaum J, Schaefer M, Nürnberg B, Chai X, Ludwig FA, N'diaye G, Köhler MB, Wu K, Gollasch M, Markó L. Role of TRPC6 in kidney damage after acute ischemic kidney injury. Sci Rep 2022; 12:3038. [PMID: 35194063 PMCID: PMC8864023 DOI: 10.1038/s41598-022-06703-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 02/03/2022] [Indexed: 12/11/2022] Open
Abstract
Transient receptor potential channel subfamily C, member 6 (TRPC6), a non-selective cation channel that controls influx of Ca2+ and other monovalent cations into cells, is widely expressed in the kidney. TRPC6 gene variations have been linked to chronic kidney disease but its role in acute kidney injury (AKI) is unknown. Here we aimed to investigate the putative role of TRPC6 channels in AKI. We used Trpc6-/- mice and pharmacological blockade (SH045 and BI-749327), to evaluate short-term AKI outcomes. Here, we demonstrate that neither Trpc6 deficiency nor pharmacological inhibition of TRPC6 influences the short-term outcomes of AKI. Serum markers, renal expression of epithelial damage markers, tubular injury, and renal inflammatory response assessed by the histological analysis were similar in wild-type mice compared to Trpc6-/- mice as well as in vehicle-treated versus SH045- or BI-749327-treated mice. In addition, we also found no effect of TRPC6 modulation on renal arterial myogenic tone by using blockers to perfuse isolated kidneys. Therefore, we conclude that TRPC6 does not play a role in the acute phase of AKI. Our results may have clinical implications for safety and health of humans with TRPC6 gene variations, with respect to mutated TRPC6 channels in the response of the kidney to acute ischemic stimuli.
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Affiliation(s)
- Zhihuang Zheng
- Department of Nephrology/Intensive Care, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Experimental and Clinical Research Center (ECRC), Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin, Berlin, Germany.,Department of Nephrology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Dmitry Tsvetkov
- Department of Nephrology/Intensive Care, Charité - Universitätsmedizin Berlin, Berlin, Germany. .,Experimental and Clinical Research Center (ECRC), Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin, Berlin, Germany. .,Department of Geriatrics, University of Greifswald, University District Hospital Wolgast, Greifswald, Germany.
| | - Theda Ulrike Patricia Bartolomaeus
- Experimental and Clinical Research Center (ECRC), Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Cem Erdogan
- Institute of Vegetative Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Ute Krügel
- Rudolf Boehm Institute for Pharmacology and Toxicology, Leipzig University, Leipzig, Germany
| | - Johanna Schleifenbaum
- Institute of Vegetative Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Schaefer
- Rudolf Boehm Institute for Pharmacology and Toxicology, Leipzig University, Leipzig, Germany
| | - Bernd Nürnberg
- Department of Pharmacology, Experimental Therapy and Toxicology and Interfaculty Center of Pharmacogenomics and Drug Research, University of Tübingen, Tübingen, Germany
| | - Xiaoning Chai
- Rudolf Boehm Institute for Pharmacology and Toxicology, Leipzig University, Leipzig, Germany
| | - Friedrich-Alexander Ludwig
- Department of Neuroradiopharmaceuticals, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Leipzig, Germany
| | - Gabriele N'diaye
- Experimental and Clinical Research Center (ECRC), Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - May-Britt Köhler
- Experimental and Clinical Research Center (ECRC), Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Kaiyin Wu
- Department of Pathology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Maik Gollasch
- Department of Nephrology/Intensive Care, Charité - Universitätsmedizin Berlin, Berlin, Germany. .,Experimental and Clinical Research Center (ECRC), Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin, Berlin, Germany. .,Department of Geriatrics, University of Greifswald, University District Hospital Wolgast, Greifswald, Germany.
| | - Lajos Markó
- Experimental and Clinical Research Center (ECRC), Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin, Berlin, Germany. .,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany. .,Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany. .,Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
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Xia L, Liu L, Cai Y, Zhang Y, Tong F, Wang Q, Ding J, Wang X. Inhibition of Gasdermin D-Mediated Pyroptosis Attenuates the Severity of Seizures and Astroglial Damage in Kainic Acid-Induced Epileptic Mice. Front Pharmacol 2022; 12:751644. [PMID: 35153737 PMCID: PMC8831916 DOI: 10.3389/fphar.2021.751644] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 12/27/2021] [Indexed: 01/11/2023] Open
Abstract
Objective: Our study aimed to explore whether gasdermin D (GSDMD)-mediated pyroptosis is involved in the mechanism of kainic acid-induced seizures. Methods: C57BL/6 mice were randomly divided into sham and epilepsy groups. The epilepsy group was intrahippocampally injected with kainic acid to induce status epilepticus (SE), and the sham group was injected with an equal volume of saline. Dimethyl fumarate (DMF) was used as the GSDMD N-terminal fragments (GSDMD-N) inhibitor and suspended in 0.5% sodium carboxymethyl cellulose (CMC) for orally administration. The epilepsy group was divided into SE + CMC and SE + DMF groups. In the SE + DMF group, DMF was orally administered for 1 week before SE induction and was continued until the end of the experiment. An equal volume of CMC was administered to the sham and SE + CMC groups. Recurrent spontaneous seizures (SRSs) were monitored for 21 days after SE. Western blot analysis and immunofluorescent staining was performed. Results: The expression of GSDMD increased at 7–21 days post-SE, and GSDMD-N expression was significantly elevated 7 days after SE in both ipsilateral and contralateral hippocampus. GSDMD-positive cells were co-labeled with astrocytes, but not neurons or microglia. Astroglial damage occurs following status epilepticus (SE). Damaged astrocytes showed typical clasmatodendrosis in the CA1 region containing strong GSDMD expression at 7–21 days post-SE, accompanied by activated microglia. In the SE + DMF group, the expression of GSDMD-N was significantly inhibited compared to that in the SE + CMC group. After administration of DMF, SRSs at 7–21 days after SE were significantly decreased, and the number of clasmatodendritic astrocytes, microglia, and the expression of inflammatory factors such as IL-1β and IL-18 were significantly attenuated. Conclusion: GSDMD-mediated pyroptosis is involved in the mechanism of kainic acid-induced seizures. Our study provides a new potential therapeutic target for seizure control.
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Affiliation(s)
- Lu Xia
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Lu Liu
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yiying Cai
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yiying Zhang
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fangchao Tong
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qiang Wang
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Ding
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
- *Correspondence: Jing Ding, ; Xin Wang,
| | - Xin Wang
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of the State Key Laboratory of Medical Neurobiology, The institutes of Brain Science and the Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China
- *Correspondence: Jing Ding, ; Xin Wang,
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Astragaloside IV Alleviates Cerebral Ischemia-Reperfusion Injury through NLRP3 Inflammasome-Mediated Pyroptosis Inhibition via Activating Nrf2. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2021:9925561. [PMID: 35003524 PMCID: PMC8739174 DOI: 10.1155/2021/9925561] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/20/2021] [Accepted: 11/25/2021] [Indexed: 12/20/2022]
Abstract
As one of the fundamental components of Astragalus membranaceus, astragaloside IV (AST IV) exerts protective effects against cerebral ischemia-reperfusion injury (CIRI). Nevertheless, the underlying mechanisms have not yet been conclusively elucidated. To do so, here, we report on the regulatory effects of Nrf2 on NLRP3 inflammasome-mediated pyroptosis. CIRI was induced by middle cerebral artery occlusion-reperfusion (MCAO/R) in Sprague Dawley rats and modeled by oxygen and glucose deprivation/reoxygenation (OGD/R) in SH-SY5Y cells. Cerebral infarct volume and neurological deficit score served as indices to evaluate MCAO/R injury. In addition, the CCK-8 assay was used to assess cell viability, the LDH leakage rate was used as a quantitative index, and propidium iodide (PI) staining was used to visualize cells after OGD/R injury. The NLRP3/Caspase-1/GSDMD pathway, which produces the pores in the cell membrane that are central to the pyroptosis process, was assessed to investigate pyroptosis. Nrf2 activation was assessed by detecting Nrf2 protein levels and immunofluorescence analysis. We show that after MCAO/R of rats, the infarct volume and neurological deficit score of rats were strongly increased, and after OGD/R of cell cultures, cell viability was strongly decreased, and the LDH leakage rate and the proportion of PI-positive cells were strongly increased. In turn, MCAO/R and OGD/R enhanced the protein levels of NLRP3, Caspase-1, IL-1β, GSDMD, and GSDMD-N. Moreover, Nrf2 protein levels increased, and Nrf2 translocation was promoted after CIRI. Interestingly, AST IV (i) reduced the cerebral infarct volume and the neurological deficit score in vivo and (ii) increased the cell viability and reduced the LDH leakage rate and the proportion of PI-positive cells in vitro. AST IV reduced the protein levels of NLRP3, Caspase-1, IL-1β, GSDMD, and GSDMD-N, inhibiting NLRP3 inflammasome-mediated pyroptosis. AST IV also increased the protein levels of Nrf2 and promoted the transfer of Nrf2 to the nucleus, accelerating Nrf2 activation. Particularly revealing was that the Nrf2 inhibitor ML385 partly blocked the above effects of AST IV. Taken together, these results demonstrate that AST IV alleviates CIRI through inhibiting NLRP3 inflammasome-mediated pyroptosis via activating Nrf2.
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Abstract
Pyroptosis is a recently identified mechanism of programmed cell death related to Caspase-1 that triggers a series of inflammatory reactions by releasing several proinflammatory factors such as IL-1β and IL-18. The process is characterised by the rupture of cell membranes and the release of cell contents through the mediation of gasdermin (GSDM) proteins. GSDMD is an important member of the GSDM family and plays a critical role in the two pathways of pyroptosis. Diabetic nephropathy (DN) is a microvascular complication of diabetes and a major cause of end-stage renal disease. Recently, it was revealed that GSDMD-mediated pyroptosis plays an important role in the occurrence and development of DN. In this review, we focus on two types of kidney cells, tubular epithelial cells and renal podocytes, to illustrate the mechanism of pyroptosis in DN and provide new ideas for the prevention, early diagnosis and molecular therapy of DN.
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31
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Li N, Wang Y, Wang X, Sun N, Gong YH. Pathway network of pyroptosis and its potential inhibitors in acute kidney injury. Pharmacol Res 2021; 175:106033. [PMID: 34915124 DOI: 10.1016/j.phrs.2021.106033] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 12/18/2022]
Abstract
Acute kidney injury (AKI) is a worldwide problem, and there is no effective drug to eliminate AKI. The death of renal cells is an important pathological basis of intrinsic AKI. At present, targeted therapy for TEC death is a research hotspot in AKI therapy. There are many ways of cell death involved in the occurrence and development of AKI, such as apoptosis, necrosis, ferroptosis, and pyroptosis. This article mainly focuses on the role of pyroptosis in AKI. The assembly and activation of NLRP3 inflammasome is a key event in the occurrence of pyroptosis, which is affected by many factors, such as the activation of the NF-κB signaling pathway, mitochondrial instability and excessive endoplasmic reticulum (ER) stress. The activation of NLRP3 inflammasome can trigger its downstream inflammatory cytokines, which will lead to pyroptosis and eventually induce AKI. In this paper, we reviewed the possible mechanism of pyroptosis in AKI and the potential effective inhibitors of various key targets in this process. It may provide potential therapeutic targets for novel intrinsic AKI therapies based on pyroptosis, so as to develop better therapeutic strategies.
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Affiliation(s)
- Ning Li
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325000, China
| | - Yuru Wang
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325000, China
| | - Xinyue Wang
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325000, China
| | - Na Sun
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325000, China
| | - Yan-Hua Gong
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325000, China.
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32
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Shao M, Ye C, Bayliss G, Zhuang S. New Insights Into the Effects of Individual Chinese Herbal Medicines on Chronic Kidney Disease. Front Pharmacol 2021; 12:774414. [PMID: 34803715 PMCID: PMC8599578 DOI: 10.3389/fphar.2021.774414] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 10/20/2021] [Indexed: 12/22/2022] Open
Abstract
The clinical and experimental study into the effects of Chinese herbal medicines on chronic kidney disease has evolved over the past 40 years with new insight into their mechanism and evidence of their clinical effects. Among the many traditional Chinese herbs examined in chronic renal disease, five were found to have evidence of sufficient clinical efficacy, high frequency of use, and well-studied mechanism. They are: Abelmoschus manihot and Huangkui capsule, Salvia miltiorrhiza and its components (tanshinone II A, salvianolic acid A and B); Rhizoma coptidis and its monomer berberine; Tripterygium wilfordii and its components (triptolide, tripterygium glycosides); Kudzu root Pueraria and its monomer Puerarin. These Chinese herbal medications have pharmaceutical effects against fibrosis, inflammation and oxidative stress and also promote renal repair and regeneration. This article reviews their clinical efficacy, anti-fibrotic effects in animal models, and molecular mechanism of action.
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Affiliation(s)
- Minghai Shao
- Department of Nephrology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chaoyang Ye
- Department of Nephrology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - George Bayliss
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, United States
| | - Shougang Zhuang
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, United States.,Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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33
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Elsayed MS, Abu-Elsaad NM, Nader MA. The NLRP3 inhibitor dapansutrile attenuates folic acid induced nephrotoxicity via inhibiting inflammasome/caspase-1/IL axis and regulating autophagy/proliferation. Life Sci 2021; 285:119974. [PMID: 34560082 DOI: 10.1016/j.lfs.2021.119974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 11/26/2022]
Abstract
AIMS Chemical renal toxicity is common and has limited therapeutic interventions. The NLRP3 inhibitor dapansutrile (DAPA) undergoes clinical phase II trials and it shows promising beneficial effects in various inflammatory diseases. The current study aims at evaluating the effect of DAPA on folic acid (FA) induced acute kidney injury (AKI) and its possible transition to chronic injury. MATERIALS AND METHODS Two treatment protocols were studied depending on DAPA injection timing. A prophylactic protocol involving the injection of DAPA (0.2 mg/kg) daily for seven days before FA challenge and a therapeutic protocol where DAPA was injected after FA. Each protocol included four groups of rats: control group, DAPA group, FA group and DAPA+FA group. Serum creatinine, urea and uric acid were measured. Also, kidney injury, necrosis and fibrosis percentage in addition to infiltration of CD68 positive cells were evaluated. Activation markers of inflammasome and the expression of Ki-67 and LC-3 were measured. KEY FINDINGS Results showed an improvement in renal tissue integrity and a significant decrease in kidney function biomarkers, caspase-1, IL-1β and IL-18 by DAPA injection (p < 0.05). In addition, DAPA decreased the proliferation marker Ki-67 and the autophagic marker LC-3 (p < 0.01). SIGNIFICANCE DAPA potentially alleviates FA induced nephrotoxicity through targeting inflammasome/caspase-1/IL axis. Moreover, it shows a regulatory effect on renal regeneration and autophagy.
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Affiliation(s)
- Mohamed S Elsayed
- Pharmacology and Toxicology Dep., Faculty of Pharmacy, Mansoura University, Egypt
| | - Nashwa M Abu-Elsaad
- Pharmacology and Toxicology Dep., Faculty of Pharmacy, Mansoura University, Egypt.
| | - Manar A Nader
- Pharmacology and Toxicology Dep., Faculty of Pharmacy, Mansoura University, Egypt
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34
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Ma Y, Long Y, Chen Y. Roles of Inflammasome in Cigarette Smoke-Related Diseases and Physiopathological Disorders: Mechanisms and Therapeutic Opportunities. Front Immunol 2021; 12:720049. [PMID: 34367189 PMCID: PMC8334727 DOI: 10.3389/fimmu.2021.720049] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/08/2021] [Indexed: 12/13/2022] Open
Abstract
Cigarette smoke damages a wide range of immunological functions, including innate and adaptive immune responses. Emerging literature demonstrates that inflammasome constitutes an essential component in innate immune response. In this review, we focus on the cumulative mechanisms of inflammasome in cigarette smoke-related diseases and physiopathological disorders, and summarize potential therapeutic opportunities targeting inflammasome. This review suggests that inflammasomes (NLRP3, NLRP6, NLRP12 and AIM2) are involved in the pathogenesis of several cigarette smoke-related diseases (including COPD, ALI, atherosclerosis, kidney injury, bladder dysfunction, and oral leukoplakia) and physiopathological disorders (macrophage dysfunction, endothelial barrier dysfunction, podocyte injury, and ubiquitin-mediated proteasomal processing). MyD88/NF-κB, HMGB1, production of ROS, endoplasmic reticulum stress and mitochondrial dysfunction, and Ca2+ influx are potentially involved in cigarette smoke induced-inflammasome activation. Strategies targeting ROS/NLRP3 inflammasome axis are most widely investigated and show potential therapeutic effects.
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Affiliation(s)
- Yiming Ma
- Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yingjiao Long
- Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yan Chen
- Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
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Abstract
Significance: Kidney diseases remain a worldwide public health problem resulting in millions of deaths each year; they are characterized by progressive destruction of renal function by sustained inflammation. Pyroptosis is a lytic type of programmed cell death involved in inflammation, as well as a key fibrotic mechanism that is critical in the development of kidney pathology. Pyroptosis is induced by the cleavage of Gasdermins by various caspases and is executed by the insertion of the N-terminal fragment of cleaved Gasdermins into the plasma membrane, creating oligomeric pores and allowing the release of diverse proinflammatory products into the extracellular space. Inflammasomes are multiprotein complexes leading to the activation of caspase-1, which will cleave Gasdermin D, releasing several proinflammatory cytokines; this results in the initiation and amplification of the inflammatory response. Recent Advances: The efficacy of Gasdermin D cleavage is reduced by a change in the redox balance. Recently, several studies have shown that the attenuation of reactive oxygen species (ROS) production induced by antioxidant pathways results in a reduction of renal pyroptosis. In this review, we discuss the role of pyroptosis in the pathogenesis of chronic kidney disease (CKD) and acute kidney disease; summarize the clinical outcomes and different molecular mechanisms leading to Gasdermin activation; and examine studies about the capacity of antioxidants, particularly Nrf2 activators, to ameliorate Gasdermin activity. Future Directions: We illustrate the potential influence of the deregulation of redox balance on inflammasome activity and pyroptosis as a novel therapeutic approach for the treatment of kidney diseases. Antioxid. Redox Signal. 35, 40-60.
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Affiliation(s)
- Santiago Cuevas
- Molecular Inflammation Group, Biomedical Research Institute of Murcia, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Pablo Pelegrín
- Molecular Inflammation Group, Biomedical Research Institute of Murcia, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain
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36
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Liu Z, Meng Y, Miao Y, Yu L, Wei Q, Li Y, Zhang B, Yu Q. Propofol ameliorates renal ischemia/reperfusion injury by enhancing macrophage M2 polarization through PPARγ/STAT3 signaling. Aging (Albany NY) 2021; 13:15511-15522. [PMID: 34111028 PMCID: PMC8221315 DOI: 10.18632/aging.203107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 05/13/2021] [Indexed: 12/26/2022]
Abstract
Propofol (Pro) confers protection against renal ischemia/reperfusion (rI/R) injury through incompletely characterized mechanisms. Since Pro has shown net anti-inflammatory properties as part of its beneficial effects, we examined the potential role of Pro in the modulation of macrophage polarization status during both rI/R injury in vivo and exposure of cultured peritoneal macrophages (PMs) to hypoxia/reoxygenation (H/R). Rats were subjected to 45-min r/IR surgery or a sham procedure and administered PBS (vehicle) or Pro during the ischemia stage. Pro administration attenuated rI/R-induced kidney damage and renal TNF-α, IL-6, and CXCL-10 expression. Enhanced macrophage M2 polarization, evidenced by reduced iNOS and increased Arg1 and Mrc1 mRNA levels, was further detected after Pro treatment both in the kidney, after rI/R in vivo, and in H/R-treated PMs. Pro administration also repressed phosphorylated signal transducer and activator of transcription 1 (p-STAT1) and increased p-STAT3, p-STAT6, and peroxisome proliferator-activated receptor-γ (PPARγ) mRNA levels in H/R-exposed PMs. Importantly, siRNA-mediated PPARγ silencing repressed Pro-mediated STAT3 activation in PMs and restored proinflammatory cytokine levels and prevented macrophage M2 marker expression in both rI/R-treated rats and cultured PMs. These findings suggest that Pro confers renoprotection against rI/R by stimulating PPARγ/STAT3-dependent macrophage conversion to the M2 phenotype.
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Affiliation(s)
- Zhaohui Liu
- Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Yanli Meng
- Department of Gastroenterology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Yu Miao
- Department of Neurosurgery, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Lili Yu
- Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Qianjie Wei
- Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Yuqing Li
- Department of Anesthesiology, Botou Hospital, Botou, Cangzhou, Hebei, China
| | - Bing Zhang
- Department of Anesthesiology, Botou Hospital, Botou, Cangzhou, Hebei, China
| | - Qiannan Yu
- Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, Hebei, China
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Renal-Protective Effects and Potential Mechanisms of Traditional Chinese Medicine after Ischemia-Reperfusion Injury. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:5579327. [PMID: 33680054 PMCID: PMC7910071 DOI: 10.1155/2021/5579327] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/21/2021] [Accepted: 01/30/2021] [Indexed: 02/05/2023]
Abstract
Renal ischemia-reperfusion (I/R) injury mainly causes acute kidney injury (AKI) after renal transplantation, trauma, sepsis, and hypovolemic shock. Patients with renal I/R injury are frequently associated with a poor prognosis. Traditional Chinese medicine (TCM) has been used for the prevention and treatment of various diseases in China and other Asian countries for centuries. Many studies have shown the protective effect of TCM on renal I/R injury, due to its diverse bioactive components. The potential mechanisms of TCMs on renal I/R injury include anti-inflammation, antioxidative effect, anti-cell death, downregulation of adhesion molecule expression, regulation of energy metabolism by restoring Na+-K+-ATPase activity, and mitochondrial fission. This review summarizes the major developments in the effects and underlying mechanisms of TCMs on the renal I/R injury.
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38
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De Miguel C, Pelegrín P, Baroja-Mazo A, Cuevas S. Emerging Role of the Inflammasome and Pyroptosis in Hypertension. Int J Mol Sci 2021; 22:ijms22031064. [PMID: 33494430 PMCID: PMC7865380 DOI: 10.3390/ijms22031064] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 02/06/2023] Open
Abstract
Inflammasomes are components of the innate immune response that have recently emerged as crucial controllers of tissue homeostasis. In particular, the nucleotide-binding domain, leucine-rich-containing (NLR) family pyrin domain containing 3 (NLRP3) inflammasome is a complex platform involved in the activation of caspase-1 and the maturation of interleukin (IL)-1β and IL-18, which are mainly released via pyroptosis. Pyroptosis is a caspase-1-dependent type of cell death that is mediated by the cleavage of gasdermin D and the subsequent formation of structurally stable pores in the cell membrane. Through these pores formed by gasdermin proteins cytosolic contents are released into the extracellular space and act as damage-associated molecular patterns, which are pro-inflammatory signals. Inflammation is a main contributor to the development of hypertension and it also is known to stimulate fibrosis and end-organ damage. Patients with essential hypertension and animal models of hypertension exhibit elevated levels of circulating IL-1β. Downregulation of the expression of key components of the NLRP3 inflammasome delays the development of hypertension and pharmacological inhibition of this inflammasome leads to reduced blood pressure in animal models and humans. Although the relationship between pyroptosis and hypertension is not well established yet, pyroptosis has been associated with renal and cardiovascular diseases, instances where high blood pressure is a critical risk factor. In this review, we summarize the recent literature addressing the role of pyroptosis and the inflammasome in the development of hypertension and discuss the potential use of approaches targeting this pathway as future anti-hypertensive strategies.
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Affiliation(s)
- Carmen De Miguel
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35233, USA
- Correspondence: (C.D.M.); (S.C.); Tel.: +34-868-885031 (S.C.)
| | - Pablo Pelegrín
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain; (P.P.); (A.B.-M.)
| | - Alberto Baroja-Mazo
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain; (P.P.); (A.B.-M.)
| | - Santiago Cuevas
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain; (P.P.); (A.B.-M.)
- Correspondence: (C.D.M.); (S.C.); Tel.: +34-868-885031 (S.C.)
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39
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Mai X, Yin X, Chen P, Zhang M. Salvianolic Acid B Protects Against Fatty Acid-Induced Renal Tubular Injury via Inhibition of Endoplasmic Reticulum Stress. Front Pharmacol 2020; 11:574229. [PMID: 33384598 PMCID: PMC7770132 DOI: 10.3389/fphar.2020.574229] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 11/18/2020] [Indexed: 12/30/2022] Open
Abstract
Background/Aims: Obesity-related kidney disease is associated with elevated levels of saturated free fatty acids (SFA). SFA lipotoxicity in tubular cells contributes to significant cellular apoptosis and injury. Salvianolic acid B (SalB) is the most abundant bioactive molecule from Radix Salviae Miltiorrhizae. In this study, we investigated the effect of SalB on SFA-induced renal tubular injury and endoplasmic reticulum (ER) stress, in vivo and in vitro. Methods: C57BL/6 mice were assigned to five groups: a control group with normal diet (Nor), high-fat diet group (HFD), and HFD with three different SalB treatment doses, low (SalBL; 3 mg/kg), medium (SalBM; 6.25 mg/kg), and high (SalBH; 12.5 mg/kg) doses. SalB was intraperitoneally injected daily for 4 weeks after 8 weeks of HFD. After 12 weeks, mice were sacrificed and kidneys and sera were collected. Apoptosis and ER stress were induced in human proximal tubule epitelial (HK2) cells by palmitic acid (PA, 0.6 mM), tunicamycin (TM, 1 μg/ml), or thapsigargin (TG, 200 nM) in vitro. Results: C57BL/6 mice fed a high-fat diet (HFD) for 12 weeks exhibited increased apoptosis (Bax and cleaved caspase-3) and ER stress (BIP, P-eIF2α, ATF4, CHOP, ATF6, IRE1α, and XBP1s) markers expression in the kidney, compared with control mice, which were remarkably suppressed by SalB treatment. In vitro studies showed that PA (0.6 mM) induced apoptosis and ER stress in cultured HK2 cells. SalB treatment attenuated all the adverse effects of PA. However, SalB failed to inhibit TM or TG-induced ER stress in HK2 cells. Conclusion: The study indicated that SalB may play an important role in obesity-related kidney injury via mediating SFA-induced ER stress.
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Affiliation(s)
- Xiaoyi Mai
- Department of Critical-care Medicine, Guangdong Provincial Hospital of Chinese Medicine, The 2nd Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,AMI Key Lab of Chinese Medicine in Guangzhou, Guangzhou, China
| | - Xin Yin
- Department of Critical-care Medicine, Guangdong Provincial Hospital of Chinese Medicine, The 2nd Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peipei Chen
- Department of Critical-care Medicine, Guangdong Provincial Hospital of Chinese Medicine, The 2nd Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,AMI Key Lab of Chinese Medicine in Guangzhou, Guangzhou, China
| | - Minzhou Zhang
- Department of Critical-care Medicine, Guangdong Provincial Hospital of Chinese Medicine, The 2nd Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,AMI Key Lab of Chinese Medicine in Guangzhou, Guangzhou, China
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