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Qian Y, Zhao N, Wang M, Zou Z, Xie K. P2X7 receptor deficiency attenuates cisplatin-induced kidney injury via inhibiting NLRP3 inflammasome activation. Biochem Pharmacol 2024; 226:116369. [PMID: 38880358 DOI: 10.1016/j.bcp.2024.116369] [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: 04/18/2024] [Revised: 06/13/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Nephrotoxicity is a major constraint of cisplatin application in many solid tumors. Since the lack of preventive strategies, the necessity exists to identify critical molecular targets involved in cisplatin nephrotoxicity. The Purinergic ligand-gcotedion channel 7 receptor (P2X7R) is a ligand-gated ion channel that is predominantly implicated in inflammation and cell death. Our aim is to investigate the role P2X7R in cisplatin-induced acute and chronic kidney injury, as well as the underlying mechanism. In this study, we found that cisplatin can cause an increase in the expression of P2X7R in mouse kidney tissue, and P2X7R knockout can alleviate acute renal function damage caused by cisplatin, as well as the expression of kidney injury molecule 1 (KIM-1) and interleukin-18 (IL-18). Cisplatin can cause an increase in the expression of nucleotide-binding domain-like receptor protein 3 (NLRP3) inflammasome in mouse kidney tissue. Compared with wild-type mice, P2X7R -/- mice showed decreased expression of NLRP3, apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), cleaved Caspase-1, and cleaved IL-1β in kidney tissue after cisplatin administration, and the apoptosis of renal tubular epithelial cells were also decreased. In addition, we also found that NLRP3 knockout can improve cisplatin induced degeneration, detachment, and necrosis of renal tubular epithelial cells. Furthermore, P2X7R -/- mice also showed reduced renal fibrosis and better long-term renal prognosis. In conclusion, our study identified that P2X7R knockout can improve cisplatin induced acute renal injury and chronic renal fibrosis by inhibiting the activation of NLRP3 inflammasome.
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Affiliation(s)
- Yingying Qian
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, Zhejiang, China
| | - Ning Zhao
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, Zhejiang, China
| | - Ming Wang
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, Zhejiang, China
| | - Zhiguo Zou
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Kewei Xie
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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2
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Stabile J, Neres-Santos RS, Molina Hernandes ID, Cruz Junho CV, Alves GF, Silva IC, Carneiro-Ramos MS, Fürstenau CR. Renal ischemia and reperfusion impact the purinergic signaling in a vascular bed distant from the injured site. Biochimie 2024; 222:37-44. [PMID: 38360398 DOI: 10.1016/j.biochi.2024.02.003] [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: 11/15/2023] [Revised: 01/23/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
AIMS Acute kidney injury (AKI) is a public health problem and represents a risk factor for cardiovascular diseases (CVD) and vascular damage. This study aimed to investigate the impact of AKI on purinergic components in mice aorta. MAIN METHODS The kidney ischemia was achieved by the occlusion of the left kidney pedicle for 60 min, followed by reperfusion for 8 (IR8) and 15 (IR15) days. Renal function was assessed through biochemical assays, while gene expression levels were evaluated by RT-qPCR. KEY FINDINGS Analyses of renal parameters showed renal remodeling through mass loss in the left kidney and hypertrophy of the right kidney in the IR15 group. Furthermore, after 15 days, local inflammation was evidenced in the aorta. Moreover, the aorta purinergic components were significantly impacted by the renal ischemia and reperfusion model, with increases in gene expression of the pro-inflammatory purinoceptors P2Y1, P2Y2, P2Y6, and P2X4, potentially contributing to the vessel inflammation. The expression of NTPDase2 and ecto-5'-nucleotidase were also significantly increased in the aorta of the same group. In addition, both ATP and AMP hydrolysis were significantly increased in the aorta from IR15 animals, driving the entire purinergic cascade to the production of the anti-inflammatory adenosine. SIGNIFICANCE In short, this is the first time that inflammation of the aorta due to AKI was shown to have an impact on purinergic signaling components, with emphasis on the adenosinergic pathway. This seems to be closely implicated in the establishment of vascular inflammation in this model of AKI and deserves to be further investigated.
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Affiliation(s)
- Jeferson Stabile
- Laboratory of Vascular Biochemistry, Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brazil.
| | - Raquel Silva Neres-Santos
- Laboratory of Cardiovascular Immunology, Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brazil.
| | - Isabela Dorta Molina Hernandes
- Laboratory of Vascular Biochemistry, Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brazil.
| | - Carolina Victória Cruz Junho
- Laboratory of Cardiovascular Immunology, Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brazil; Institute for Molecular Cardiovascular Research (IMCAR), University Hospital RWTH Aachen, Aachen, Germany.
| | - Geovane Felippe Alves
- Laboratory of Vascular Biochemistry, Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brazil.
| | - Isabella Cardoso Silva
- Laboratory of Vascular Biochemistry, Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brazil; Institute of Biotechnology, Federal University of Uberlândia, Patos de Minas, MG, Brazil.
| | - Marcela Sorelli Carneiro-Ramos
- Laboratory of Cardiovascular Immunology, Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brazil.
| | - Cristina Ribas Fürstenau
- Laboratory of Vascular Biochemistry, Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brazil.
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Li RY, Guo L. Exercise in Diabetic Nephropathy: Protective Effects and Molecular Mechanism. Int J Mol Sci 2024; 25:3605. [PMID: 38612417 PMCID: PMC11012151 DOI: 10.3390/ijms25073605] [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: 02/15/2024] [Revised: 03/15/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Diabetic nephropathy (DN) is a serious complication of diabetes, and its progression is influenced by factors like oxidative stress, inflammation, cell death, and fibrosis. Compared to drug treatment, exercise offers a cost-effective and low-risk approach to slowing down DN progression. Through multiple ways and mechanisms, exercise helps to control blood sugar and blood pressure and reduce serum creatinine and albuminuria, thereby alleviating kidney damage. This review explores the beneficial effects of exercise on DN improvement and highlights its potential mechanisms for ameliorating DN. In-depth understanding of the role and mechanism of exercise in improving DN would pave the way for formulating safe and effective exercise programs for the treatment and prevention of DN.
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Affiliation(s)
- Ruo-Ying Li
- School of Exercise and Health, Collaborative Innovation Center for Sports and Public Health, Shanghai University of Sport, Shanghai 200438, China;
- Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China
- Key Laboratory of Exercise and Health Sciences of the Ministry of Education, Shanghai University of Sport, Shanghai 200438, China
| | - Liang Guo
- School of Exercise and Health, Collaborative Innovation Center for Sports and Public Health, Shanghai University of Sport, Shanghai 200438, China;
- Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China
- Key Laboratory of Exercise and Health Sciences of the Ministry of Education, Shanghai University of Sport, Shanghai 200438, China
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4
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Mishra S, Shelke V, Dagar N, Lech M, Gaikwad AB. Molecular insights into P2X signalling cascades in acute kidney injury. Purinergic Signal 2024:10.1007/s11302-024-09987-w. [PMID: 38246970 DOI: 10.1007/s11302-024-09987-w] [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: 11/23/2023] [Accepted: 01/18/2024] [Indexed: 01/23/2024] Open
Abstract
Acute kidney injury (AKI) is a critical health issue with high mortality and morbidity rates in hospitalized individuals. The complex pathophysiology and underlying health conditions further complicate AKI management. Growing evidence suggests the pivotal role of ion channels in AKI progression, through promoting tubular cell death and altering immune cell functions. Among these channels, P2X purinergic receptors emerge as key players in AKI pathophysiology. P2X receptors gated by adenosine triphosphate (ATP), exhibit increased extracellular levels of ATP during AKI episodes. More importantly, certain P2X receptor subtypes upon activation exacerbate the situation by promoting the release of extracellular ATP. While therapeutic investigations have primarily focused on P2X4 and P2X7 subtypes in the context of AKI, while understanding about other subtypes still remains limited. Whilst some P2X antagonists show promising results against different types of kidney diseases, their role in managing AKI remains unexplored. Henceforth, understanding the intricate interplay between P2X receptors and AKI is crucial for developing targeted interventions. This review elucidates the functional alterations of all P2X receptors during normal kidney function and AKI, offering insights into their involvement in AKI. Notably, we have highlighted the current knowledge of P2X receptor antagonists and the possibilities to use them against AKI in the future. Furthermore, the review delves into the pathways influenced by activated P2X receptors during AKI, presenting potential targets for future therapeutic interventions against this critical condition.
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Affiliation(s)
- Swati Mishra
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Vishwadeep Shelke
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Neha Dagar
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Maciej Lech
- Division of Nephrology, Department of Medicine IV, LMU University Hospital, Ludwig Maximilians University Munich, 80336, Munich, Germany
| | - Anil Bhanudas Gaikwad
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan, 333031, India.
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Yao J, Sterling K, Wang Z, Zhang Y, Song W. The role of inflammasomes in human diseases and their potential as therapeutic targets. Signal Transduct Target Ther 2024; 9:10. [PMID: 38177104 PMCID: PMC10766654 DOI: 10.1038/s41392-023-01687-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 09/18/2023] [Accepted: 10/13/2023] [Indexed: 01/06/2024] Open
Abstract
Inflammasomes are large protein complexes that play a major role in sensing inflammatory signals and triggering the innate immune response. Each inflammasome complex has three major components: an upstream sensor molecule that is connected to a downstream effector protein such as caspase-1 through the adapter protein ASC. Inflammasome formation typically occurs in response to infectious agents or cellular damage. The active inflammasome then triggers caspase-1 activation, followed by the secretion of pro-inflammatory cytokines and pyroptotic cell death. Aberrant inflammasome activation and activity contribute to the development of diabetes, cancer, and several cardiovascular and neurodegenerative disorders. As a result, recent research has increasingly focused on investigating the mechanisms that regulate inflammasome assembly and activation, as well as the potential of targeting inflammasomes to treat various diseases. Multiple clinical trials are currently underway to evaluate the therapeutic potential of several distinct inflammasome-targeting therapies. Therefore, understanding how different inflammasomes contribute to disease pathology may have significant implications for developing novel therapeutic strategies. In this article, we provide a summary of the biological and pathological roles of inflammasomes in health and disease. We also highlight key evidence that suggests targeting inflammasomes could be a novel strategy for developing new disease-modifying therapies that may be effective in several conditions.
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Affiliation(s)
- Jing Yao
- The National Clinical Research Center for Geriatric Disease, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Keenan Sterling
- Townsend Family Laboratories, Department of Psychiatry, Brain Research Center, The University of British Columbia, 2255 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Zhe Wang
- The National Clinical Research Center for Geriatric Disease, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Yun Zhang
- The National Clinical Research Center for Geriatric Disease, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
- Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, P.R. China.
| | - Weihong Song
- The National Clinical Research Center for Geriatric Disease, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
- Townsend Family Laboratories, Department of Psychiatry, Brain Research Center, The University of British Columbia, 2255 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada.
- Zhejiang Clinical Research Center for Mental Disorders, Key Laboratory of Alzheimer's Disease of Zhejiang Province, School of Mental Health and The Affiliated Kangning Hospital, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China.
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang, 325000, China.
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6
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Eleftheriadis T, Pissas G, Golfinopoulos S, Liakopoulos V, Stefanidis I. Indoleamine 2,3-dioxygenase controls purinergic receptor-mediated ischemia-reperfusion injury in renal tubular epithelial cells. J Basic Clin Physiol Pharmacol 2023; 34:745-754. [PMID: 35918786 DOI: 10.1515/jbcpp-2022-0128] [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: 05/09/2022] [Accepted: 07/03/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Ischemia-reperfusion (I-R) injury is the most common cause of acute kidney injury (AKI). Experimental studies have shown that indoleamine 2,3-dioxygenase 1 (IDO) and the purinergic receptor P2X7 contribute to kidney I-R injury. We evaluated whether there is an interplay between IDO and P2X7 in the pathogenesis of I-R injury. METHODS Primary renal proximal tubular epithelial cells (RPTECs) were subjected to anoxia or reoxygenation with or without specific inhibitors. Cell imaging, colorimetric assays, and Western blotting were used. RESULTS Cell imaging revealed that inhibition of IDO, or all the purinergic receptors with an ATPase, or specific inhibition of P2X7 rescued the cells from anoxia or reoxygenation-induced cell death. This was confirmed with LDH release assay, which also detected the ferroptotic nature of cell death due to reoxygenation. On the contrary, activated cleaved caspase 3 increased during anoxia, showing that apoptosis prevails. All the aforementioned treatments prevented caspase increase. Both anoxia and reoxygenation increased extracellular ATP, IDO, and P2X7 expression. IDO remained unaffected by the above-mentioned treatments. On the contrary, treatment with apyrase or inhibition of P2X7decreased extracellular ATP and P2X7 expression, which are also decreased by inhibition of IDO. The first indicates a positive feedback loop regarding P2X7 activation, expression and function, while the latter implies that IDO controls P2X7 expression. CONCLUSIONS In RPRECs subjected to anoxia or reoxygenation, IDO is upregulated, increasing P2X7 and contributing to anoxia or reoxygenation-induced cell death. Clarifying the molecular mechanisms implicated in kidney I-R injury is of particular interest since it may lead to new therapeutic strategies against AKI.
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Affiliation(s)
| | - Georgios Pissas
- Department of Nephrology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | | | - Vassilios Liakopoulos
- Department of Nephrology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Ioannis Stefanidis
- Department of Nephrology, Faculty of Medicine, University of Thessaly, Larissa, Greece
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7
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Roger E, Chadjichristos CE, Kavvadas P, Price GW, Cliff CL, Hadjadj S, Renciot J, Squires PE, Hills CE. Connexin-43 hemichannels orchestrate NOD-like receptor protein-3 (NLRP3) inflammasome activation and sterile inflammation in tubular injury. Cell Commun Signal 2023; 21:263. [PMID: 37770948 PMCID: PMC10536814 DOI: 10.1186/s12964-023-01245-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/23/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND Without a viable cure, chronic kidney disease is a global health concern. Inflammatory damage in and around the renal tubules dictates disease severity and is contributed to by multiple cell types. Activated in response to danger associated molecular patterns (DAMPs) including ATP, the NOD-like receptor protein-3 (NLRP3) inflammasome is integral to this inflammation. In vivo, we have previously observed that increased expression of Connexin 43 (Cx43) is linked to inflammation in chronic kidney disease (CKD) whilst in vitro studies in human proximal tubule cells highlight a role for aberrant Cx43 hemichannel mediated ATP release in tubule injury. A role for Cx43 hemichannels in priming and activation of the NLRP3 inflammasome in tubule epithelial cells remains to be determined. METHODS Using the Nephroseq database, analysis of unpublished transcriptomic data, examined gene expression and correlation in human CKD. The unilateral ureteral obstruction (UUO) mouse model was combined with genetic (tubule-specific Cx43 knockout) and specific pharmacological blockade of Cx43 (Peptide5), to explore a role for Cx43-hemichannels in tubule damage. Human primary tubule epithelial cells were used as an in vitro model of CKD. RESULTS Increased Cx43 and NLRP3 expression correlates with declining glomerular filtration rate and increased proteinuria in biopsies isolated from patients with CKD. Connexin 43-tubule deletion prior to UUO protected against tubular injury, increased expression of proinflammatory molecules, and significantly reduced NLRP3 expression and downstream signalling mediators. Accompanied by a reduction in F4/80 macrophages and fibroblast specific protein (FSP1+) fibroblasts, Cx43 specific hemichannel blocker Peptide5 conferred similar protection in UUO mice. In vitro, Peptide5 determined that increased Cx43-hemichannel activity primes and activates the NLRP3 inflammasome via ATP-P2X7 receptor signalling culminating in increased secretion of chemokines and cytokines, each of which are elevated in individuals with CKD. Inhibition of NLRP3 and caspase 1 similarly decreased markers of tubular injury, whilst preventing the perpetual increase in Cx43-hemichannel activity. CONCLUSION Aberrant Cx43-hemichannel activity in kidney tubule cells contributes to tubule inflammation via activation of the NLRP3 inflammasome and downstream paracrine mediated cell signalling. Use of hemichannel blockers in targeting Cx43-hemichannels is an attractive future therapeutic target to slow or prevent disease progression in CKD. Video Abstract.
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Affiliation(s)
- Elena Roger
- Batiment Recherche, INSERM, UMR-S1155, Tenon Hospital, 4 Rue de la Chine, Paris, 75020, France
- Faculty of Medicine, Sorbonne University, Paris, 75013, France
| | - Christos E Chadjichristos
- Batiment Recherche, INSERM, UMR-S1155, Tenon Hospital, 4 Rue de la Chine, Paris, 75020, France
- Faculty of Medicine, Sorbonne University, Paris, 75013, France
| | - Panagiotis Kavvadas
- Batiment Recherche, INSERM, UMR-S1155, Tenon Hospital, 4 Rue de la Chine, Paris, 75020, France
- Faculty of Medicine, Sorbonne University, Paris, 75013, France
| | - Gareth W Price
- Joseph Banks Laboratories, School of Life and Environmental Sciences, University of Lincoln, Lincoln, LN6 7DL, UK
| | - Chelsy L Cliff
- Joseph Banks Laboratories, School of Life and Environmental Sciences, University of Lincoln, Lincoln, LN6 7DL, UK
| | - Safia Hadjadj
- Batiment Recherche, INSERM, UMR-S1155, Tenon Hospital, 4 Rue de la Chine, Paris, 75020, France
- Faculty of Medicine, Sorbonne University, Paris, 75013, France
| | - Jessy Renciot
- Batiment Recherche, INSERM, UMR-S1155, Tenon Hospital, 4 Rue de la Chine, Paris, 75020, France
- Faculty of Medicine, Sorbonne University, Paris, 75013, France
| | - Paul E Squires
- Joseph Banks Laboratories, School of Life and Environmental Sciences, University of Lincoln, Lincoln, LN6 7DL, UK
| | - Claire E Hills
- Joseph Banks Laboratories, School of Life and Environmental Sciences, University of Lincoln, Lincoln, LN6 7DL, UK.
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Zhang R, Su K, Yang L, Tang M, Zhao M, Ye N, Cai X, Jiang X, Li N, Peng J, Zhang X, Wang B, Wu W, Ma L, Ye H. Design, Synthesis, and Biological Evaluation of Novel P2X7 Receptor Antagonists for the Treatment of Septic Acute Kidney Injury. J Med Chem 2023; 66:11365-11389. [PMID: 37582195 DOI: 10.1021/acs.jmedchem.3c00837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Sepsis-associated acute kidney injury (AKI) is a serious clinical problem, without effective drugs. Abnormal activation of the purinergic P2X7 receptor (P2X7R) in septic kidneys makes its antagonist a promising therapeutic approach. Herein, a series of novel P2X7R antagonists were designed, synthesized, and structurally optimized. Based on in vitro potency in human/mouse P2X7R using HEK293 cells, hepatic microsomal stability, and pharmacokinetic and preliminary in vivo assessments, compound 14a was identified by respective human and mouse P2X7R IC50 values of 64.7 and 10.1 nM, together with favorable pharmacokinetic properties. Importantly, 14a dose-dependently alleviated kidney dysfunction and pathological injury in both lipopolysaccharide (LPS)- and cecal ligation/perforation (CLP)-induced septic AKI mice with a good safety profile. Mechanistically, 14a could suppress NLRP3 inflammasome activation to inhibit the expression of cleaved caspase-1, gasdermin D, IL-1β, and IL-18 in the injured kidneys of septic mice. Collectively, these results highlighted that P2X7R antagonist 14a exerted a therapeutic potential against septic AKI.
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Affiliation(s)
- Ruijia Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kaiyue Su
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Letian Yang
- Division of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Minghai Tang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Min Zhao
- Laboratory of Metabolomics and Drug-induced Liver Injury, Department of Gastroenterology & Hepatology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Neng Ye
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaoying Cai
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xueqin Jiang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Na Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jing Peng
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xinlu Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Bo Wang
- Division of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wenshuang Wu
- Division of Thyroid Surgery, Department of General Surgery and Laboratory of Thyroid and Parathyroid Disease, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Liang Ma
- Division of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Haoyu Ye
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
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Shen C, Jiang Y, Lin J, He Y, Liu Y, Fang D. Purinergic receptor P2X7 activates NOX2/JNK signaling to participate in granulosa cell inflammation and apoptosis in polycystic ovary syndrome. J Bioenerg Biomembr 2023; 55:313-322. [PMID: 37480429 DOI: 10.1007/s10863-023-09979-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 07/18/2023] [Indexed: 07/24/2023]
Abstract
Increasing evidence shows that polycystic ovary syndrome (PCOS) is often accompanied by an inflammatory response, hence, appropriately managing granulosa cell inflammation is critical to regaining ovarian function in PCOS. In this study, the differential levels of purinergic receptor P2X7 between the control and PCOS samples in the dataset GSE34526 were assessed, then PCOS mouse models were established. Following evaluating the fluctuations in hormone levels, inflammatory cytokines, and P2X7, mice received treatment with the P2X7 antagonist A740003. Its effects on hormones, inflammation, apoptosis, and NOX2 signaling in mice were examined. Afterward, primary mouse granulosa cells were isolated, and the mediating role of NOX2 signaling in the P2X7 regulatory pathway was confirmed by transfection of NOX2 overexpression plasmids. The results demonstrated that P2X7 was significantly elevated in the PCOS samples in the dataset. Compared with the control group, PCOS mice had significant differences in the follicle-stimulating hormone, luteinizing hormone, testosterone, anti-Müllerian hormone, inflammatory factors, and P2X7. Treatment with A740003 partially restored these parameter levels, including NOX2 signaling. Based on in vitro experiments on primary mouse granulosa cells, the above findings were re-verified, and the overexpression of NOX2 could reverse the regulatory function of P2X7. The present study highlights that P2X7 level increases in PCOS, and inhibition of P2X7 can reduce disease symptoms. It is involved in inflammation and apoptosis in granulosa cells through NOX2/JNK signaling.
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Affiliation(s)
- Chuan Shen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, No. 17, Section 3, Ren Min Nan Lu, Chengdu, Sichuan, 610041, P.R. China
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Sichuan University, Ministry of Education, No. 20, Section 3, Ren Min Nan Lu, Chengdu, Sichuan, 610041, P.R. China
| | - Yongmei Jiang
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Sichuan University, Ministry of Education, No. 20, Section 3, Ren Min Nan Lu, Chengdu, Sichuan, 610041, P.R. China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, No. 17, Section 3, Ren Min Nan Lu, Chengdu, Sichuan, 610041, P.R. China
| | - Yibei He
- Department of Laboratory Medicine, Chengdu Chenghua District Maternal and Child Health Hospital, No. 6, Xinhong Road, Cheng Hua Da Dao, Chengdu, Sichuan, 610056, P.R. China
| | - Yue Liu
- Department of Laboratory Medicine, Chengdu Chenghua District Maternal and Child Health Hospital, No. 6, Xinhong Road, Cheng Hua Da Dao, Chengdu, Sichuan, 610056, P.R. China
| | - Dingzhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, No. 17, Section 3, Ren Min Nan Lu, Chengdu, Sichuan, 610041, P.R. China.
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10
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Zhang B, Yang W, Chen L. Secreted phosphoprotein 1 exacerbates renal ischemia-reperfusion injury by inhibiting PI3K/AKT signaling pathway. Tissue Cell 2023; 83:102154. [PMID: 37429131 DOI: 10.1016/j.tice.2023.102154] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/02/2023] [Accepted: 06/30/2023] [Indexed: 07/12/2023]
Abstract
BACKGROUND Renal ischemia-reperfusion injury (IRI) is a prevalent reason for acute kidney injury and a key clinical issue for patients under anesthesia and about to have surgery. We aim to investigate the Secreted phosphoprotein 1 (SPP1) role in renal IRI and the underlying mechanisms. METHODS Using Gene Expression Omnibus (GEO) database helped in analyzing the SPP1 expression in renal IRI. We established two models, a mouse renal ischemia-reperfusion (I/R) besides a hypoxia-reoxygenation (H/R) HK-2 cell. Renal tubular lesions were measured using H&E staining. Depending on the TUNEL assay, immunohistochemistry, qRT-PCR, as well as western blot, we applied the assessment of apoptosis and apoptosis-associated protein levels. At the same time, a western blot was performed for assessing PI3K/AKT pathway-associated proteins. RESULTS GEO data and experimental validation revealed elevated SPP1 content in the kidney tissues of renal I/R mice more than in sham mice. In vitro and in vivo studies revealed an increase in cell apoptosis due to SPP1 overexpression, but the opposite is true when SPP1 is silenced. SPP1 downregulation led to high p-PI3K and p-AKT protein levels, and the LY294002 application inhibited SPP1 inhibition-mediated anti-apoptotic effect CONCLUSION: Taken together, SPP1 exacerbates renal IRI in vivo and in vitro via promoting programmed cell death by inhibiting PI3K/AKT signaling pathway.
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Affiliation(s)
- Bokang Zhang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, 230031, PR China
| | - Wan Yang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, 230031, PR China
| | - Lanren Chen
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, 230031, PR China.
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11
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Wu F, Wei H, Hu Y, Gao J, Xu S. Upregulation of P2X7 Exacerbates Myocardial Ischemia-Reperfusion Injury through Enhancing Inflammation and Apoptosis in Diabetic Mice. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:1962-1973. [PMID: 37144844 PMCID: PMC10235857 DOI: 10.4049/jimmunol.2200838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 03/20/2023] [Indexed: 05/06/2023]
Abstract
Diabetes-aggravated myocardial ischemia-reperfusion (MI/R) injury remains an urgent medical issue, and the molecular mechanisms involved with diabetes and MI/R injury remain largely unknown. Previous studies have shown that inflammation and P2X7 signaling participate in the pathogenesis of the heart under individual conditions. It remains to be explored if P2X7 signaling is exacerbated or alleviated under double insults. We established a high-fat diet and streptozotocin-induced diabetic mouse model, and we compared the differences in immune cell infiltration and P2X7 expression between diabetic and nondiabetic mice after 24 h of reperfusion. The antagonist and agonist of P2X7 were administered before and after MI/R. Our study showed that the MI/R injury of diabetic mice was characterized by increased infarct area, impaired ventricular contractility, more apoptosis, aggravated immune cell infiltration, and overactive P2X7 signaling compared with nondiabetic mice. The major trigger of increased P2X7 was the MI/R-induced recruitment of monocytes and macrophages, and diabetes can be a synergistic factor in this process. Administration of P2X7 agonist eliminated the differences in MI/R injury between nondiabetic mice and diabetic mice. Both 2 wk of brilliant blue G injection before MI/R and acutely administered A438079 at the time of MI/R injury attenuated the role of diabetes in exacerbating MI/R injury, as evidenced by decreased infarct size, improved cardiac function, and inhibition of apoptosis. Additionally, brilliant blue G blockade decreased the heart rate after MI/R, which was accompanied by downregulation of tyrosine hydroxylase expression and nerve growth factor transcription. In conclusion, targeting P2X7 may be a promising strategy for reducing the risk of MI/R injury in diabetes.
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Affiliation(s)
- Fancan Wu
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Hong Wei
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Department of Anesthesiology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Yingxin Hu
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jiahong Gao
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Shiyuan Xu
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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12
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Qian C, Lu J, Che X, Min L, Wang M, Song A, Lu R, Gu L, Xie K. P2X7R/AKT/mTOR signaling mediates high glucose-induced decrease in podocyte autophagy. Free Radic Biol Med 2023:S0891-5849(23)00431-8. [PMID: 37245531 DOI: 10.1016/j.freeradbiomed.2023.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 05/03/2023] [Accepted: 05/15/2023] [Indexed: 05/30/2023]
Abstract
Diabetic nephropathy is one of the leading causes of end-stage renal disease worldwide. In our study we found that Adenosine triphosphate (ATP) content was significantly increased in the urine of diabetic mice. We examined the expression of all purinergic receptors in the renal cortex and found that only purinergic P2X7 receptor (P2X7R) expression was significantly increased in the renal cortex of wild-type diabetic mice and that the P2X7R protein partially co-localized with podocytes. Compared with P2X7R(-/-) non-diabetic mice, P2X7R(-/-) diabetic mice showed stable expression of the podocyte marker protein podocin in the renal cortex. The renal expression of microtubule associated protein 1A/1B light chain 3 (LC-3II) in wild-type diabetic mice was significantly lower than in wild-type controls, whereas the expression of LC-3II in the kidneys of P2X7R(-/-) diabetic mice was not significantly different from that of P2X7R(-/-) non-diabetic mice. In vitro, high glucose induced an increase in p-Akt/Akt, p-mTOR/mTOR and p62 protein expression along with a decrease in LC-3II levels in podocytes, whereas after transfection with P2X7R siRNA, Phosphorylated serine/threonine kinase (p-Akt)/Akt, Phosphorylated mechanistic target of rapamycin (p-mTOR)/mTOR, and p62 expression were restored and LC-3II expression was increased. In addition, LC-3II expression was also restored after inhibition of Akt and mTOR signaling with MK2206 and rapamycin, respectively. Our results suggest that P2X7R expression is increased in podocytes in diabetes, and that P2X7R is involved in the inhibition of podocyte autophagy by high glucose, at least in part through the Akt-mTOR pathway, thereby exacerbating podocyte damage and promoting the onset of diabetic nephropathy. Targeting P2X7R may be a potential treatment for diabetic nephropathy.
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Affiliation(s)
- Cheng Qian
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Jiayue Lu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Xiajing Che
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Lulin Min
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Minzhou Wang
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Ahui Song
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Renhua Lu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China.
| | - Leyi Gu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China.
| | - Kewei Xie
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Uremia Diagnosis and Treatment Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China.
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13
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Sluyter R, Adriouch S, Fuller SJ, Nicke A, Sophocleous RA, Watson D. Animal Models for the Investigation of P2X7 Receptors. Int J Mol Sci 2023; 24:ijms24098225. [PMID: 37175933 PMCID: PMC10179175 DOI: 10.3390/ijms24098225] [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: 04/04/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
The P2X7 receptor is a trimeric ligand-gated cation channel activated by extracellular adenosine 5'-triphosphate. The study of animals has greatly advanced the investigation of P2X7 and helped to establish the numerous physiological and pathophysiological roles of this receptor in human health and disease. Following a short overview of the P2X7 distribution, roles and functional properties, this article discusses how animal models have contributed to the generation of P2X7-specific antibodies and nanobodies (including biologics), recombinant receptors and radioligands to study P2X7 as well as to the pharmacokinetic testing of P2X7 antagonists. This article then outlines how mouse and rat models have been used to study P2X7. These sections include discussions on preclinical disease models, polymorphic P2X7 variants, P2X7 knockout mice (including bone marrow chimeras and conditional knockouts), P2X7 reporter mice, humanized P2X7 mice and P2X7 knockout rats. Finally, this article reviews the limited number of studies involving guinea pigs, rabbits, monkeys (rhesus macaques), dogs, cats, zebrafish, and other fish species (seabream, ayu sweetfish, rainbow trout and Japanese flounder) to study P2X7.
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Affiliation(s)
- Ronald Sluyter
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Sahil Adriouch
- UniRouen, INSERM, U1234, Pathophysiology, Autoimmunity, and Immunotherapy, (PANTHER), Univ Rouen Normandie, University of Rouen, F-76000 Rouen, France
| | - Stephen J Fuller
- Sydney Medical School Nepean, Faculty of Medicine and Health, The University of Sydney, Nepean Hospital, Kingswood, NSW 2750, Australia
| | - Annette Nicke
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, LMU Munich, 80336 Munich, Germany
| | - Reece A Sophocleous
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Debbie Watson
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
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14
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Liu JP, Liu SC, Hu SQ, Lu JF, Wu CL, Hu DX, Zhang WJ. ATP ion channel P2X purinergic receptors in inflammation response. Biomed Pharmacother 2023; 158:114205. [PMID: 36916431 DOI: 10.1016/j.biopha.2022.114205] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/19/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Different studies have confirmed that P2X purinergic receptors play a key role in inflammation. Activation of P2X purinergic receptors can release inflammatory cytokines and participate in the progression of inflammatory diseases. In an inflammatory microenvironment, cells can release a large amount of ATP to activate P2X receptors, open non-selective cation channels, activate multiple intracellular signaling, release multiple inflammatory cytokines, amplify inflammatory response. While P2X4 and P2X7 receptors play an important role in the process of inflammation. P2X4 receptor can mediate the activation of microglia involved in neuroinflammation, and P2X7 receptor can mediate different inflammatory cells to mediate the progression of tissue-wide inflammation. At present, the role of P2X receptors in inflammatory response has been widely recognized and affirmed. Therefore, in this paper, we discussed the role of P2X receptors-mediated inflammation. Moreover, we also described the effects of some antagonists (such as A-438079, 5-BDBD, A-804598, A-839977, and A-740003) on inflammation relief by antagonizing the activities of P2X receptors.
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Affiliation(s)
- Ji-Peng Liu
- Department of Gastrointestinal surgery, The Second Affiliated Hospital, Nanchang University, Nanchang City, Jiangxi Province 343000, China
| | - Si-Cheng Liu
- Department of Gastrointestinal surgery, The Second Affiliated Hospital, Nanchang University, Nanchang City, Jiangxi Province 343000, China
| | - Shi-Qi Hu
- Queen Mary College, Nanchang University, Nanchang City, Jiangxi Province 343000, China
| | - Jia-Feng Lu
- Basic medical school, Nanchang University, Nanchang City, Jiangxi Province 343000, China
| | - Chang-Lei Wu
- Department of Gastrointestinal surgery, The Second Affiliated Hospital, Nanchang University, Nanchang City, Jiangxi Province 343000, China
| | - Dong-Xia Hu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital, Nanchang University, Nanchang City, Jiangxi Province 343000, China.
| | - Wen-Jun Zhang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital, Nanchang University, Nanchang City, Jiangxi Province 343000, China.
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15
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Guerini FR, Agliardi C, Bolognesi E, Zanzottera M, Caputo D, Pasanisi MB, Rovaris M, Clerici M. Two Single Nucleotide Polymorphisms in the Purinergic Receptor P2X7 Gene Are Associated with Disease Severity in Multiple Sclerosis. Int J Mol Sci 2022; 23:ijms232315381. [PMID: 36499708 PMCID: PMC9736555 DOI: 10.3390/ijms232315381] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic autoimmune inflammatory disease of the central nervous system (CNS) that leads to progressive physical disability. Recent evidence has suggested that P2X7 receptor (P2X7R)-mediated purinergic signalling pathways play a role in MS-associated neuroinflammation, possibly contributing to disease pathogenesis. To evaluate possible associations between P2X7R polymorphisms and MS disease severity, we performed an association study of five non-synonymous SNPs coding variants of the P2X7R gene: rs1718119 Ala348Thr, rs2230911 Thr357Ser, rs2230912 Gln460Arg, rs3751143 Glu496Ala, and rs28360457 Arg307Gln, modulating P2X7R expression in 128 MS patients (relapsing remitting MS, RRMS: n = 94; secondary progressive, SPMS: n = 34). All patients were genotyped, and multiple sclerosis severity score (MSSS) was evaluated in every case; 189 healthy subjects were enrolled as well as controls. Results showed that P2X7R rs1718119(A) 348Thr and rs22390912(G) 464Arg, two SNPs of minor allele frequency (MAF) known to confer gain of function to the P2X7R protein, were associated with significantly higher MSSS in RRMS patients alone (SMRR (p < 0.001, p = 0.01, respectively)). Interestingly, two whole haplotypes resulted in having significant association with MSSS in these same patients. Thus: (1) the P2X7R-4 “ACGAG” haplotype, characterized by the co-presence of the rs1718119-rs2230912 AG MAF alleles, was associated with higher MSSS (Beta: 1.11 p = 0.04), and (2) the P2X7R-1 “GCAAG” complementary haplotype, which contains the rs1718119 and rs2230912 GA wild-type alleles, was more frequently carried by patients with lower MSSS and less severe disease (Beta: −1.54 p < 0.001). Although being preliminary and needing confirmation in an ampler cohort, these results suggest that 348Thr and 464Arg variants have a role as modulators of disease severity in RRMS patients.
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Affiliation(s)
| | - Cristina Agliardi
- IRCCS Fondazione Don Carlo Gnocchi, ONLUS, 20148 Milan, Italy
- Correspondence: ; Tel.: +39-0240308342; Fax: +39-0240308438
| | | | | | - Domenico Caputo
- IRCCS Fondazione Don Carlo Gnocchi, ONLUS, 20148 Milan, Italy
| | | | - Marco Rovaris
- IRCCS Fondazione Don Carlo Gnocchi, ONLUS, 20148 Milan, Italy
| | - Mario Clerici
- IRCCS Fondazione Don Carlo Gnocchi, ONLUS, 20148 Milan, Italy
- Pathophysiology and Transplantation Department, University of Milan, 20122 Milan, Italy
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16
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Dwyer KM. Burnstock oration - purinergic signalling in kidney transplantation. Purinergic Signal 2022; 18:387-393. [PMID: 35471483 PMCID: PMC9832191 DOI: 10.1007/s11302-022-09865-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/06/2022] [Indexed: 01/14/2023] Open
Abstract
Kidney transplantation is the preferred treatment for individuals with kidney failure offering improved quality and quantity of life. Despite significant advancements in short term graft survival, longer term survival rates have not improved greatly mediated in large by chronic antibody mediated rejection. Strategies to reduce the donor kidney antigenic load may translate to improved transplant survival. CD39 on the vascular endothelium and on circulating cells, in particular regulatory T cells (Treg), is upregulated in response to hypoxic stimuli and plays a critical role in regulating the immune response removing proinflammatory ATP and generating anti-inflammatory adenosine. Herein, the role of CD39 in reducing ischaemia-reperfusion injury (IRI) and on Treg within the context of kidney transplantation is reviewed.
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Affiliation(s)
- Karen M. Dwyer
- grid.1021.20000 0001 0526 7079School of Medicine, Deakin University, Geelong, 3220 Australia
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17
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Williams BM, Cliff CL, Demirel I, Squires PE, Hills CE. Blocking connexin 43 hemichannel-mediated ATP release reduces communication within and between tubular epithelial cells and medullary fibroblasts in a model of diabetic nephropathy. Diabet Med 2022; 39:e14963. [PMID: 36256487 PMCID: PMC9828766 DOI: 10.1111/dme.14963] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/08/2022] [Accepted: 09/19/2022] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Fibrosis of renal tubules is the final common pathway in diabetic nephropathy and develops in the face of tubular injury and fibroblast activation. Aberrant connexin 43 (Cx43) hemichannel activity has been linked to this damage under euglycaemic conditions, however, its role in glycaemic injury is unknown. This study investigated the effect of a Cx43 blocker (Tonabersat) on hemichannel activity and cell-cell interactions within and between tubular epithelial cells and fibroblasts in an in vitro model of diabetic nephropathy. METHODS Human kidney (HK2) proximal tubule epithelial cells and medullary fibroblasts (TK173) were treated in low (5 mM) or high (25 mM) glucose ± transforming growth factor beta-1 (TGFβ1) ± Tonabersat in high glucose. Carboxyfluorescein dye uptake and ATPlite luminescence assessed changes in hemichannel-mediated ATP release, while immunoblotting determined protein expression. Co-incubation with the ATP-diphosphohydrolase apyrase or a P2X7R inhibitor (A438079) assessed ATP-P2X7R signalling. Indirect co-culture with conditioned media from the alternate cell type evaluated paracrine-mediated heterotypic interactions. RESULTS Tonabersat partially negated glucose/TGFβ1-induced increases in Cx43 hemichannel-mediated ATP release and downstream changes in adherens junction and extracellular matrix (ECM) protein expression in HK2 and TK173 cells. Apyrase and A438079 highlighted the role for ATP-P2X7R in driving changes in protein expression in TK173 fibroblasts. Indirect co-culture studies suggest that epithelial cell secretome increases Tonabersat-sensitive hemichannel-mediated dye uptake in fibroblasts and downstream protein expression. CONCLUSION Tonabersat-sensitive hemichannel-mediated ATP release enhances TGFβ1-driven heterotypic cell-cell interaction and favours myofibroblast activation. The data supports the potential benefit of Cx43 inhibition in reducing tubulointerstitial fibrosis in late-stage diabetic nephropathy.
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Affiliation(s)
| | | | - Isak Demirel
- School of Medical SciencesÖrebro UniversityÖrebroSweden
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18
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El-Maadawy WH, Hassan M, Badawy MH, AbuSeada A, Hafiz E. Probenecid induces the recovery of renal ischemia/reperfusion injury via the blockade of Pannexin 1/P2X7 receptor axis. Life Sci 2022; 308:120933. [PMID: 36075473 DOI: 10.1016/j.lfs.2022.120933] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/24/2022] [Accepted: 09/01/2022] [Indexed: 11/18/2022]
Abstract
Renal ischemia/reperfusion injury (RI/RI) is one of the main driving causes of acute kidney injury. However, effective treatment to limit injury and promote recovery and/or survival is still unavailable. Probenecid (PBN), a drug indicated for refractory gout, exhibits protective activities against several preclinical diseases including cerebral and myocardial I/RI via Pannexin 1 (Panx1) and P2X7 receptors' (P2X7R) inhibition. However, its protective role against RI/RI has not been previously addressed. Accordingly, we subjected rats to bilateral RI/RI with/or without PBN treatment. Twenty-four hours post-reperfusion, PBN showed mild tubular injury and reduced serum nephrotoxicity indices, gene and protein expression levels of Panx 1 and P2X7R, and ATP and pro-inflammatory cytokines' levels. The nucleotide-binding domain-like receptor protein 3 (NLRP3) inflammasome signaling was also downregulated, as demonstrated by reduced gene and protein expression of NLRP3 and caspase-1, along with suppressed IL-1β maturation. Furthermore, PBN enhanced Tregs activity as indicated by elevated FoxP3 gene expression, IL-10, and TGF-β renal levels. On day 5 post-reperfusion, PBN noticeably enhanced renal recovery, as demonstrated by intact tubular epithelium and restored nephrotoxicity indices, Panx 1 and P2X7R gene and protein expression levels, ATP and pro-inflammatory cytokine levels, and NLRP3 inflammasome signaling. Besides, renal Tregs activity was also significantly increased. Our study elaborates for the first time the effectiveness of PBN in recovering post-ischemic renal injury through synergistic inhibition in Panx1/P2X7R axis leading to inactivation of NLRP3 inflammasome signaling and activation of Tregs in ischemic renal tissues. Therefore, PBN can be considered a promising drug for RI/RI treatment.
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Affiliation(s)
- Walaa H El-Maadawy
- Pharmacology Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba (P.O. 30), Giza 12411, Egypt.
| | - Marwa Hassan
- Immunology Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba (P.O. 30), Giza 12411, Egypt
| | - Mohamed H Badawy
- Urology Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba (P.O. 30), Giza 12411, Egypt
| | - AbdulRahman AbuSeada
- Anesthesia Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba (P.O. 30), Giza 12411, Egypt
| | - Ehab Hafiz
- Electron Microscopy Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba (P.O. 30), Giza 12411, Egypt
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19
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Batista Simões JL, Sobierai LD, Pereira SM, Rodrigues Dos Santos MV, Bagatini MD. Therapeutic potential of P2X7 purinergic receptor modulation in the main organs affected by the COVID-19 cytokine storm. Curr Pharm Des 2022; 28:1798-1814. [PMID: 35838210 DOI: 10.2174/1381612828666220713115906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/31/2022] [Indexed: 01/08/2023]
Abstract
Defined by the World Health Organization as a global public health pandemic, coronavirus 2019 (COVID-19) has a global impact and the death of thousands of people. The "severe acute respiratory syndrome coronavirus 2" virus (SARS-CoV-2) is the etiologic agent of this disease, which uses the angiotensin-converting enzyme receptor 2 (ACE2) to infect the body, so any organ that expresses the gene ACE2 is a possible target for the new coronavirus. In addition, in severe cases of COVID-19, a cytokine storm occurs, which triggers widespread systemic inflammation due to the uncontrolled release of proinflammatory cytokines. In this perspective, the modulation of purinergic receptors are highlighted in the literature as a possible therapy, considering its application in other viral infections and systemic inflammation. Therefore, the objective of this review is to gather information on the modulation of the P2X7 receptor in the main organs directly affected by the virus and by the cytokine storm: heart, brain, lung, liver and kidneys. Thus, demonstrating possible therapies for reducing inflammation, as well as reducing the level of morbidity and mortality of COVID-19.
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20
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Gao Y, Zhang H, Wang Y, Han T, Jin J, Li J, Tang Y, Liu C. L-Cysteine Alleviates Myenteric Neuron Injury Induced by Intestinal Ischemia/Reperfusion via Inhibitin the Macrophage NLRP3-IL-1β Pathway. Front Pharmacol 2022; 13:899169. [PMID: 35754513 PMCID: PMC9213754 DOI: 10.3389/fphar.2022.899169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 04/26/2022] [Indexed: 11/13/2022] Open
Abstract
Ischemia/reperfusion injury is a common pathophysiological process in the clinic. It causes various injuries, multiple organ dysfunction, and even death. There are several possible mechanisms about ischemia/reperfusion injury, but the influence on intestinal myenteric neurons and the underlying mechanism are still unclear. C57BL6/J mice were used to establish the ischemia/reperfusion model in vivo. Peritoneal macrophages were used for ATP depletion and hypoxia/reoxygenation experiment in vitro. L-cysteine, as the substrate of hydrogen sulfide, is involved in many physiological and pathological processes, including inflammation, metabolism, neuroprotection, and vasodilation. In the current study, we confirmed that intestinal ischemia/reperfusion led to the injury of myenteric neurons. From experiments in vitro and in vivo, we demonstrated that L-cysteine protected myenteric neurons from the injury. AOAA reversed the protective effect of L-cysteine. Also, L-cysteine played a protective role mainly by acting on intestinal macrophages via decreasing the expression of NLRP3, cleaved caspase-1, and mature IL-1β. L-cysteine increased cystathionine beta synthase and H2S produced by intestinal macrophages to protect myenteric mature neurons and enteric neural precursor cells from apoptosis. Moreover, the addition of IL-1β-neutralizing antibody alleviated the injury of myenteric neurons and enteric neural precursor cells caused by intestinal ischemia/reperfusion. Our study provided a new target for the protection of myenteric neurons in clinical intestinal ischemia/reperfusion injury.
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Affiliation(s)
- Yifei Gao
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Haojie Zhang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Yujin Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Ting Han
- Department of Gastroenterology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Jing Jin
- Department of TCM Rheumatology, China-Japan Friendship Hospital, Beijing, China
| | - Jingxin Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China
| | - Yan Tang
- Department of Gastroenterology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Chuanyong Liu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, China.,Provincial Key Lab of Mental Disorders, Shandong University, Jinan, China
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21
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Tao WH, Shan XS, Zhang JX, Liu HY, Wang BY, Wei X, Zhang M, Peng K, Ding J, Xu SX, Li LG, Hu JK, Meng XW, Ji FH. Dexmedetomidine Attenuates Ferroptosis-Mediated Renal Ischemia/Reperfusion Injury and Inflammation by Inhibiting ACSL4 via α2-AR. Front Pharmacol 2022; 13:782466. [PMID: 35873574 PMCID: PMC9307125 DOI: 10.3389/fphar.2022.782466] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 05/23/2022] [Indexed: 12/23/2022] Open
Abstract
Ischemia-reperfusion (I/R) injury is a serious clinical pathology associated with acute kidney injury (AKI). Ferroptosis is non-apoptotic cell death that is known to contribute to renal I/R injury. Dexmedetomidine (Dex) has been shown to exert anti-inflammatory and organ protective effects. This study aimed to investigate the detailed molecular mechanism of Dex protects kidneys against I/R injury through inhibiting ferroptosis. We established the I/R-induced renal injury model in mice, and OGD/R induced HEK293T cells damage in vitro. RNA-seq analysis was performed for identifying the potential therapeutic targets. RNA-seq analysis for differentially expressed genes (DEGs) reported Acyl-CoA synthetase long-chain family member 4 (ACSL4) related to ferroptosis and inflammation in I/R mice renal, which was validated in rodent renal. Liproxstatin-1, the specific small-molecule inhibitor of ferroptosis, significantly attenuated ferroptosis-mediated renal I/R injury with decreased LPO, MDA, and LDH levels, and increased GSH level. Inhibiting the activity of ACSL4 by the Rosiglitazone (ROSI) resulted in the decreased ferroptosis and inflammation, as well as reduced renal tissue damage, with decreasing LPO, MDA and LDH level, increasing GSH level, reducing COX2 and increasing GPx4 protein expression, and suppressing the TNF-α mRNA and IL-6 mRNA levels. Dex as a α2-adrenergic receptor (α2-AR) agonist performed renal protective effects against I/R-induced injury. Our results also revealed that Dex administration mitigated tissue damage, inhibited ferroptosis, and downregulated inflammation response following renal I/R injury, which were associated with the suppression of ACSL4. In addition, ACSL4 overexpression abolishes Dex-mediated protective effects on OGD/R induced ferroptosis and inflammation in HEK293T cells, and promotion of ACSL4 expression by α2-AR inhibitor significantly reversed the effects on the protective role of Dex. This present study indicated that the Dex attenuates ferroptosis-mediated renal I/R injury and inflammation by inhibiting ACSL4 via α2-AR.
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Affiliation(s)
- Wen-hui Tao
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Xi-sheng Shan
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Jia-xin Zhang
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Hua-yue Liu
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Bi-ying Wang
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Xiang Wei
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Mian Zhang
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Ke Peng
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Jun Ding
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Shang-xian Xu
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
| | - Lin-gui Li
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Jun-kai Hu
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
| | - Xiao-wen Meng
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
- *Correspondence:Xiao-wen Meng, ; Fu-hai Ji,
| | - Fu-hai Ji
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Soochow, China
- Institute of Anesthesiology, Soochow University, Soochow, China
- *Correspondence:Xiao-wen Meng, ; Fu-hai Ji,
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22
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Gao Z, Zhang C, Peng F, Chen Q, Zhao Y, Chen L, Wang X, Chen X. Hypoxic mesenchymal stem cell-derived extracellular vesicles ameliorate renal fibrosis after ischemia-reperfusion injure by restoring CPT1A mediated fatty acid oxidation. Stem Cell Res Ther 2022; 13:191. [PMID: 35526054 PMCID: PMC9080148 DOI: 10.1186/s13287-022-02861-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 04/18/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Renal fibrosis is a common pathological process of chronic kidney diseases induced by multiple factors. Hypoxic pretreatment of mesenchymal stem cells can enhance the efficacy of secreted extracellular vesicles (MSC-EVs) on various diseases, but it is not clear whether they can better improve renal fibrosis. The latest research showed that recovery of fatty acid oxidation (FAO) can reduce renal fibrosis. In this study, we aimed to examine whether hypoxic pretreatment with MSC extracellular vesicles (Hypo-EVs) can improve FAO to restore renal fibrosis and to investigate the underlying mechanism. METHODS Hypo-EVs were isolated from hypoxia-pretreated human placenta-derived MSC (hP-MSC), and Norm-EVs were isolated from hP-MSC cultured under normal conditions. We used ischemia-reperfusion (I/R)-induced renal fibrosis model in vivo. The mice were injected with PBS, Hypo-EVs, or Norm-EVs immediately after the surgery and day 1 postsurgery. Renal function, kidney pathology, and renal fibrosis were assessed for kidney damage evaluation. For mechanistic exploration, fatty acid oxidation (FAO), mitochondrial morphological alterations, ATP production and mitochondrial mass proteins were detected in vivo. Mitochondrial membrane potential and reactive oxygen species (ROS) production were investigated in vitro. RESULTS We found that Hypo-EVs confer a superior therapeutic effect on recovery of renal structure damage, restoration of renal function and reduction in renal fibrosis. Meanwhile, Hypo-EVs enhanced mitochondrial FAO in kidney by restoring the expression of a FAO key rate-limiting enzyme carnitine palmitoyl-transferase 1A (CPT1A). Mechanistically, the improvement of mitochondrial homeostasis, characterized by repaired mitochondrial structure, restoration of mitochondrial mass and ATP production, inhibition of oxidative stress, and increased mitochondrial membrane potential, partially explains the effect of Hypo-EVs on improving mitochondrial FAO and thus attenuating I/R damage. CONCLUSIONS Hypo-EVs suppress the renal fibrosis by restoring CPT1A-mediated mitochondrial FAO, which effects may be achieved through regulation of mitochondrial homeostasis. Our findings provide further mechanism support for development cell-free therapy of renal fibrosis.
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Affiliation(s)
- Zhumei Gao
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China.,Department of Nephropathy, The Second Hospital of Jilin University, Changchun, China
| | - Chuyue Zhang
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China.,Kidney Research Institute, National Clinical Research Center for Geriatrics and Division of Nephrology, West China Hospital of Sichuan University, Chengdou, China
| | - Fei Peng
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Qianqian Chen
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Yinghua Zhao
- School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Liangmei Chen
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xu Wang
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
| | - Xiangmei Chen
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China. .,Department of Nephropathy, The Second Hospital of Jilin University, Changchun, China.
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23
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El-Maadawy WH, Hassan M, Hafiz E, Badawy MH, Eldahshan S, AbuSeada A, El-Shazly MAM, Ghareeb MA. Co-treatment with Esculin and erythropoietin protects against renal ischemia-reperfusion injury via P2X7 receptor inhibition and PI3K/Akt activation. Sci Rep 2022; 12:6239. [PMID: 35422072 PMCID: PMC9010483 DOI: 10.1038/s41598-022-09970-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 03/30/2022] [Indexed: 12/17/2022] Open
Abstract
Renal ischemia/reperfusion (RI/R) is a critical clinical outcome with slightly reported improvement in mortality and morbidity. Effective therapies are still crucially required. Accordingly, the therapeutic effects of esculin (ESC, LCESI-MS/MS-isolated compound from Vachellia farnesiana flowers extract, with reported P2X7 receptor inhibitor activity) alone and in combination with erythropoietin (EPO) were investigated against RI/R injury and the possible underlying mechanisms were delineated. ESC and EPO were administered for 7 days and 30 min prior to RI, respectively. Twenty-four hour following reperfusion, blood and kidney samples were collected. Results revealed that pretreatment with either ESC or EPO reduced serum nephrotoxicity indices, renal oxidative stress, inflammatory, and apoptosis markers. They also ameliorated the renal histopathological injury on both endothelial and tubular epithelial levels. Notably, ESC markedly inhibited P2X7 receptors and NLRP3 inflammasome signaling (downregulated NLRP3 and Caspase-1 gene expressions), whereas EPO significantly upregulated PI3K and Akt gene expressions, also p-PI3K and p-Akt levels in renal tissues. ESC, for the first time, demonstrated effective protection against RI/R-injury and its combination with EPO exerted maximal renoprotection when compared to each monotherapy, thereby representing an effective therapeutic approach via inhibiting oxidative stress, inflammation, renal tubular and endothelial injury, apoptosis, and P2X7 receptors expression, and activating PI3K/Akt pathway.
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Affiliation(s)
- Walaa H El-Maadawy
- Pharmacology Department, Theodor Bilharz Research Institute, Kornaish El Nile, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt.
| | - Marwa Hassan
- Immunology Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Ehab Hafiz
- Electron Microscopy Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Mohamed H Badawy
- Urology Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Samir Eldahshan
- Urology Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - AbdulRahman AbuSeada
- Anesthesia Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Maha A M El-Shazly
- Medicinal Chemistry Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
| | - Mosad A Ghareeb
- Medicinal Chemistry Department, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, P.O. Box 30, Giza, 12411, Egypt
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24
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Jin J, Zhou TJ, Ren GL, Cai L, Meng XM. Novel insights into NOD-like receptors in renal diseases. Acta Pharmacol Sin 2022; 43:2789-2806. [PMID: 35365780 PMCID: PMC8972670 DOI: 10.1038/s41401-022-00886-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 02/02/2022] [Accepted: 02/07/2022] [Indexed: 11/09/2022] Open
Abstract
Nucleotide-binding oligomerization domain-like receptors (NLRs), including NLRAs, NLRBs (also known as NAIPs), NLRCs, and NLRPs, are a major subfamily of pattern recognition receptors (PRRs). Owing to a recent surge in research, NLRs have gained considerable attention due to their involvement in mediating the innate immune response and perpetuating inflammatory pathways, which is a central phenomenon in the pathogenesis of multiple diseases, including renal diseases. NLRs are expressed in different renal tissues during pathological conditions, which suggest that these receptors play roles in acute kidney injury, obstructive nephropathy, diabetic nephropathy, IgA nephropathy, lupus nephritis, crystal nephropathy, uric acid nephropathy, and renal cell carcinoma, among others. This review summarises recent progress on the functions of NLRs and their mechanisms in the pathophysiological processes of different types of renal diseases to help us better understand the role of NLRs in the kidney and provide a theoretical basis for NLR-targeted therapy for renal diseases.
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25
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Deng Y, Zhou M, Zhao X, Xue X, Liao L, Wang J, Li Y. Immune response studies based on P2X7 receptors: A Mini-Review. Curr Pharm Des 2022; 28:993-999. [PMID: 35100953 DOI: 10.2174/1381612828666220131091325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/28/2021] [Indexed: 11/22/2022]
Abstract
Inflammation, as a complex immunopathological process, is the organism's natural defense response to the organism against harmful, foreign, and destructive immune or non-immune factors. It is the main pathological form of various diseases, such as tumors, neurodegenerative diseases, periodontitis, alcoholic steatohepatitis, asthma, and other diseases. The P2X7 receptor (P2X7R) is widely distributed in vivo and up--regulated in various inflammatory pathological states. Studies have shown that milder chronic inflammation is related to a deficiency or inhibition of P2X7R, which is an indispensable part of the pro-inflammatory mechanism in vivo. P2X7R, a unique subtype of seven purinergic P2X receptors, is an ATP-gated nonselective cationic channel. P2X7R will promote the influx of Ca2+ and the outflow of K+ after being stimulated. The influx of Ca2+ is essential for activating the body's innate immune response and inducing the production of inflammatory factors. This paper reviews the regulation of P2X7R on inflammation from the perspectives of innate immunity and adaptive immunity.
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Affiliation(s)
- Ying Deng
- State Key laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, China
- School of pharmacy, Chengdu university of Traditional Chinese Medicine, Chengdu 611137, China
- Key laboratory of standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
| | - Mengting Zhou
- State Key laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, China
- School of pharmacy, Chengdu university of Traditional Chinese Medicine, Chengdu 611137, China
- Key laboratory of standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
| | - Xingtao Zhao
- State Key laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, China
- School of pharmacy, Chengdu university of Traditional Chinese Medicine, Chengdu 611137, China
- Key laboratory of standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
| | - Xinyan Xue
- State Key laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, China
- School of pharmacy, Chengdu university of Traditional Chinese Medicine, Chengdu 611137, China
- Key laboratory of standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
| | - Li Liao
- State Key laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, China
- School of pharmacy, Chengdu university of Traditional Chinese Medicine, Chengdu 611137,
- Key laboratory of standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
| | - Jing Wang
- State Key laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, China
- School of pharmacy, Chengdu university of Traditional Chinese Medicine, Chengdu 611137, China
- Key laboratory of standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
| | - Yunxia Li
- State Key laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, China
- School of pharmacy, Chengdu university of Traditional Chinese Medicine, Chengdu 611137, China
- Key laboratory of standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
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