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Warner S, Teague HL, Ramos-Benitez MJ, Panicker S, Allen K, Gaihre S, Moyer T, Parachalil Gopalan B, Douagi I, Shet A, Kanthi Y, Suffredini AF, Chertow DS, Strich JR. R406 reduces lipopolysaccharide-induced neutrophil activation. Cell Immunol 2024; 403-404:104860. [PMID: 39084187 DOI: 10.1016/j.cellimm.2024.104860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/05/2024] [Accepted: 07/22/2024] [Indexed: 08/02/2024]
Abstract
Modulating SYK has been demonstrated to have impacts on pathogenic neutrophil responses in COVID-19. During sepsis, neutrophils are vital in early bacterial clearance but also contribute to the dysregulated immune response and organ injury when hyperactivated. Here, we evaluated the impact of R406, the active metabolite of fostamatinib, on neutrophils stimulated by LPS. We demonstrate that R406 was able to effectively inhibit NETosis, degranulation, ROS generation, neutrophil adhesion, and the formation of CD16low neutrophils that have been linked to detrimental outcomes in severe sepsis. Further, the neutrophils remain metabolically active, capable of releasing cytokines, perform phagocytosis, and migrate in response to IL-8. Taken together, this data provides evidence of the potential efficacy of utilizing fostamatinib in bacterial sepsis.
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Affiliation(s)
- Seth Warner
- Critical Care Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA; Critical Care Medicine Department, National Institutes of Health Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Heather L Teague
- Critical Care Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA; Critical Care Medicine Department, National Institutes of Health Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Marcos J Ramos-Benitez
- Basic Science Department, Microbiology Division, School of Medicine, Ponce Health Sciences University, Ponce, PR, USA
| | - Sumith Panicker
- Laboratory of Vascular Thrombosis and Inflammation, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Kiana Allen
- Critical Care Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA; Critical Care Medicine Department, National Institutes of Health Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Salina Gaihre
- Critical Care Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA; Critical Care Medicine Department, National Institutes of Health Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Tom Moyer
- Flow Cytometry Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Bindu Parachalil Gopalan
- Laboratory of Sickle Thrombosis and Vascular Biology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Iyadh Douagi
- Flow Cytometry Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA; NIH Center for Human Immunology, Inflammation, and Autoimmunity, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Arun Shet
- Laboratory of Sickle Thrombosis and Vascular Biology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Yogendra Kanthi
- Laboratory of Vascular Thrombosis and Inflammation, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Anthony F Suffredini
- Critical Care Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA; Critical Care Medicine Department, National Institutes of Health Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Daniel S Chertow
- Critical Care Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA; Critical Care Medicine Department, National Institutes of Health Clinical Center, National Institutes of Health, Bethesda, MD, USA; Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Jeffrey R Strich
- Critical Care Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA; Critical Care Medicine Department, National Institutes of Health Clinical Center, National Institutes of Health, Bethesda, MD, USA.
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Xu J, Zhang Z, Ren D, Liu L, Xing H, Wang D, Wu Y, Zhang Y, Chen Q, Wang T. Astragaloside Ⅳ negatively regulates Gpr97-TPL2 signaling to protect against hyperhomocysteine-exacerbated sepsis associated acute kidney injury. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 125:155346. [PMID: 38237511 DOI: 10.1016/j.phymed.2024.155346] [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: 10/12/2023] [Revised: 12/25/2023] [Accepted: 01/07/2024] [Indexed: 02/13/2024]
Abstract
BACKGROUND Hyperhomocysteine (HHcy) plays an important role in promoting inflammation and cell death of tubular epithelial cells. However, the role of HHcy and Astragaloside IV (AS-IV) in sepsis associated acute kidney injury (S-AKI) remain unclear. PURPOSE A significant aspect of this study aimed to elucidate the effect of AS-Ⅳ treatment on HHcy-exacerbated S-AKI and reveal its potential mechanism. METHODS Male C57BL/6 J mice fed with specific diet containing 2% methionine were established as in vivo models, and AS-Ⅳ was orally administrated continuously for 3 weeks, and then LPS (10 mg·kg-1 bodyweight) was given by a single intraperitoneal injection. The renal morphological changes were evaluated by HE and PAS staining. RNA-sequencing analysis was applied to select key signaling. The NRK-52E cells exposed to Hcy or combined with LPS were used as in vitro models. The mRNA and protein expression levels of Gpr97-TPL2 signaling were examined by qRT-PCR and western blotting assays. RESULTS In vivo, HHcy mice developed more severe renal injury and prevalent tubular inflammation after LPS injection. In vitro, the levels of NGAL, Gpr97 and TPL2 were significantly increased in NRK-52E cells induced by Hcy (1.6 mM) or in combination with LPS. Notably, the effects of Hcy on TPL2 signaling was abolished by transfecting TPL2 siRNA or treating TPL2 inhibitor, without alterations in Gpr97. However, the enhancement of Gpr97-TPL2 signaling induced by Hcy was counteracted by Gpr97 siRNA. Subsequently, our findings demonstrated that AS-Ⅳ treatment can improve renal function in HHcy-exacerbated S-AKI mice. Mechanistically, AS-Ⅳ alleviated renal tubular damage characterized by abnormal increases in KIM-1, NGAL, TPL2, Gpr97, Sema3A and TNF-α, and decreases in survivin in vivo and in vitro mainly through suppressing the activation of Gpr97-TPL2 signaling. CONCLUSION The present study suggested that HHcy-exacerbated S-AKI was mediated mechanically by activation of Gpr97-TPL2 signaling for the first time. Furthermore, our research also illustrated that AS-Ⅳ protected against HHcy-exacerbated S-AKI by attenuating renal tubular epithelial cells damage through negatively regulating Gpr97-TPL2 signaling, proposing a natural product treatment strategy for HHcy-exacerbated S-AKI.
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Affiliation(s)
- Jingge Xu
- State Key Laboratory of Component Based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zhiyu Zhang
- State Key Laboratory of Component Based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Dongwen Ren
- State Key Laboratory of Component Based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Luokun Liu
- State Key Laboratory of Component Based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Haitao Xing
- The First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, China
| | - Dan Wang
- State Key Laboratory of Component Based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yuzheng Wu
- State Key Laboratory of Component Based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yi Zhang
- State Key Laboratory of Component Based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Qian Chen
- State Key Laboratory of Component Based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Tao Wang
- State Key Laboratory of Component Based Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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Lv D, Jiang H, Yang X, Li Y, Niu W, Zhang D. Advances in understanding of dendritic cell in the pathogenesis of acute kidney injury. Front Immunol 2024; 15:1294807. [PMID: 38433836 PMCID: PMC10904453 DOI: 10.3389/fimmu.2024.1294807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 02/05/2024] [Indexed: 03/05/2024] Open
Abstract
Acute kidney injury (AKI) is characterized by a rapid decline in renal function and is associated with a high morbidity and mortality rate. At present, the underlying mechanisms of AKI remain incompletely understood. Immune disorder is a prominent feature of AKI, and dendritic cells (DCs) play a pivotal role in orchestrating both innate and adaptive immune responses, including the induction of protective proinflammatory and tolerogenic immune reactions. Emerging evidence suggests that DCs play a critical role in the initiation and development of AKI. This paper aimed to conduct a comprehensive review and analysis of the role of DCs in the progression of AKI and elucidate the underlying molecular mechanism. The ultimate objective was to offer valuable insights and guidance for the treatment of AKI.
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Affiliation(s)
- Dongfang Lv
- College of First Clinical Medicine, 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
- Department of Urology, Afliated Hospital of Shandong University of Traditional 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
| | - Weipin Niu
- 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
| | - 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
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Luo S, Li M, Ding X, Luo F, Liao Z. CIRCUSP42 AMELIORATES LPS-INDUCED HUMAN RENAL EPITHELIAL CELLS IN VITRO BY REGULATING THE MIR-182-5P/DUSP1 AXIS. Shock 2024; 61:41-48. [PMID: 37878495 DOI: 10.1097/shk.0000000000002229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
ABSTRACT Background: Sepsis is a life-threatening systemic inflammatory disease that can cause many diseases, including acute kidney injury (AKI). Increasing evidence showed that a variety of circular RNAs were considered to be involved in the development of the disease. In this study, we aimed to elucidate the role and potential mechanism of circUSP42 in sepsis-induced AKI. Methods: HK2 cells were treated with lipopolysaccharide (LPS) to establish septic AKI cell model. The expression levels of circUSP42, microRNA-182-5p (miR-182-5p), and DUSP1 in LPS-treated HK2 cells were measured by quantitative real-time polymerase chain reaction or Western blot. Functional experiments were performed by using Cell Counting Kit-8, 5-ethynyl-2'-deoxyuridine staining, flow cytometry, oxidative stress assay, and enzyme-linked immunosorbent assay. The potential target binding site between miR-182-5p and CircUSP42 or DUSP1 was verified by dual-luciferase reporter and RNA immunoprecipitation assays. Results: CircUSP42 and DUSP1 were downregulated in serum samples from patients with AKI and LPS-treated HK2 cells, while miR-182-5p was upregulated. Functionally, overexpression of CircUSP42 promoted cell proliferation and inhibited apoptosis, inflammation, and oxidative stress in LPS-triggered HK2 cells. Further mechanism analysis showed that miR-182-5p had potential binding sites with circUSP42 and DUSP1, and circUSP42 regulated LPS-induced cell damage by targeting miR-182-5p. At the same time, miR-182-5p knockdown inhibited LPS-treated HK2 cell damage by regulating DUSP1. In addition, circUSP42 induced DUSP1 expression via sponging miR-182-5p to ameliorate LPS-induced HK2 cell damage. Conclusion : Our results showed that circUSP42 overexpression might attenuate LPS-induced HK2 cell injury by regulating miR-182-5p/DUSP1 axis. This might provide therapeutic strategy for the treatment of sepsis.
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Affiliation(s)
- Shu Luo
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong City, China
| | - Mengqin Li
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong City, China
| | - Xuefeng Ding
- Department of Critical care, Affiliated Hospital of North Sichuan Medical College, Nanchong City, China
| | - Feng Luo
- Management institute, Sichuan Normal University, Chengdu City, China
| | - Zhangping Liao
- Pharmaceutical institute, Nanchang University, Nanchang City, China
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Rashid H, Jali A, Akhter MS, Abdi SAH. Molecular Mechanisms of Oxidative Stress in Acute Kidney Injury: Targeting the Loci by Resveratrol. Int J Mol Sci 2023; 25:3. [PMID: 38203174 PMCID: PMC10779152 DOI: 10.3390/ijms25010003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 01/12/2024] Open
Abstract
Reactive oxygen species are a group of cellular molecules that stand as double-edged swords, their good and bad being discriminated by a precise balance. Several metabolic reactions in the biological system generate these molecules that interact with cellular atoms to regulate functions ranging from cell homeostasis to cell death. A prooxidative state of the cell concomitant with decreased clearance of such molecules leads to oxidative stress, which contributes as a prime pathophysiological mechanism in various diseases including renal disorders, such as acute kidney injury. However, targeting the generation of oxidative stress in renal disorders by an antioxidant, resveratrol, is gaining considerable therapeutic importance and is known to improve the condition in preclinical studies. This review aims to discuss molecular mechanisms of oxidative stress in acute kidney injury and its amelioration by resveratrol. The major sources of data were PubMed and Google Scholar, with studies from the last five years primarily included, with significant earlier data also considered. Mitochondrial dysfunction, various enzymatic reactions, and protein misfolding are the major sources of reactive oxygen species in acute kidney injury, and interrupting these loci of generation or intersection with other cellular components by resveratrol can mitigate the severity of the condition.
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Affiliation(s)
- Hina Rashid
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
| | - Abdulmajeed Jali
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
| | - Mohammad Suhail Akhter
- Department of Medical Laboratory Technology, College of Applied Medical Sciences, Jazan University, Jizan 45142, Saudi Arabia
| | - Sayed Aliul Hasan Abdi
- Department of Pharmacy, Faculty of Clinical Pharmacy, Al Baha University, Al Baha 65711, Saudi Arabia
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Clemente-Suárez VJ, Martín-Rodríguez A, Redondo-Flórez L, Villanueva-Tobaldo CV, Yáñez-Sepúlveda R, Tornero-Aguilera JF. Epithelial Transport in Disease: An Overview of Pathophysiology and Treatment. Cells 2023; 12:2455. [PMID: 37887299 PMCID: PMC10605148 DOI: 10.3390/cells12202455] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/28/2023] Open
Abstract
Epithelial transport is a multifaceted process crucial for maintaining normal physiological functions in the human body. This comprehensive review delves into the pathophysiological mechanisms underlying epithelial transport and its significance in disease pathogenesis. Beginning with an introduction to epithelial transport, it covers various forms, including ion, water, and nutrient transfer, followed by an exploration of the processes governing ion transport and hormonal regulation. The review then addresses genetic disorders, like cystic fibrosis and Bartter syndrome, that affect epithelial transport. Furthermore, it investigates the involvement of epithelial transport in the pathophysiology of conditions such as diarrhea, hypertension, and edema. Finally, the review analyzes the impact of renal disease on epithelial transport and highlights the potential for future research to uncover novel therapeutic interventions for conditions like cystic fibrosis, hypertension, and renal failure.
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Affiliation(s)
- Vicente Javier Clemente-Suárez
- Faculty of Sports Sciences, Universidad Europea de Madrid, Tajo Street, s/n, 28670 Madrid, Spain;
- Group de Investigación en Cultura, Educación y Sociedad, Universidad de la Costa, Barranquilla 080002, Colombia
| | | | - Laura Redondo-Flórez
- Department of Health Sciences, Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid, C/Tajo s/n, Villaviciosa de Odón, 28670 Madrid, Spain; (L.R.-F.); (C.V.V.-T.)
| | - Carlota Valeria Villanueva-Tobaldo
- Department of Health Sciences, Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid, C/Tajo s/n, Villaviciosa de Odón, 28670 Madrid, Spain; (L.R.-F.); (C.V.V.-T.)
| | - Rodrigo Yáñez-Sepúlveda
- Faculty of Education and Social Sciences, Universidad Andres Bello, Viña del Mar 2520000, Chile;
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Balkrishna A, Sinha S, Kumar A, Arya V, Gautam AK, Valis M, Kuca K, Kumar D, Amarowicz R. Sepsis-mediated renal dysfunction: Pathophysiology, biomarkers and role of phytoconstituents in its management. Biomed Pharmacother 2023; 165:115183. [PMID: 37487442 DOI: 10.1016/j.biopha.2023.115183] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/08/2023] [Accepted: 07/18/2023] [Indexed: 07/26/2023] Open
Abstract
Sepsis has evolved as an enormous health issue amongst critically ill patients. It is a major risk factor that results in multiple organ failure and shock. Acute kidney injury (AKI) is one of the most frequent complications underlying sepsis, which portends a heavy burden of mortality and morbidity. Thus, the present review is aimed to provide an insight into the recent progression in the molecular mechanisms targeting dysregulated immune response and cellular dysfunction involved in the development of sepsis-associated AKI, accentuating the phytoconstituents as eligible candidates for attenuating the onset and progression of sepsis-associated AKI. The pathogenesis of sepsis-mediated AKI entails a complicated mechanism and is likely to involve a distinct constellation of hemodynamic, inflammatory, and immune mechanisms. Novel biomarkers like neutrophil gelatinase-associated lipocalin, soluble triggering receptor expressed on myeloid cells 1, procalcitonin, alpha-1-microglobulin, and presepsin can help in a more sensitive diagnosis of sepsis-associated AKI. Many bioactive compounds like curcumin, resveratrol, baicalin, quercetin, and polydatin are reported to play an important role in the prevention and management of sepsis-associated AKI by decreasing serum creatinine, blood urea nitrogen, cystatin C, lipid peroxidation, oxidative stress, IL-1β, TNF-α, NF-κB, and increasing the activity of antioxidant enzymes and level of PPARγ. The plant bioactive compounds could be developed into a drug-developing candidate in managing sepsis-mediated acute kidney injury after detailed follow-up studies. Lastly, the gut-kidney axis may be a more promising therapeutic target against the onset of septic AKI, but a deeper understanding of the molecular pathways is still required.
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Affiliation(s)
- Acharya Balkrishna
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Sugandh Sinha
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Ashwani Kumar
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India.
| | - Vedpriya Arya
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Ajay Kumar Gautam
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Martin Valis
- Department of Neurology, Charles University in Prague, Faculty of Medicine in Hradec Králové and University Hospital, Hradec Králové, Czech Republic
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic; Biomedical Research Center, University Hospital in Hradec Kralove, Sokolska 581, Hradec Kralove, Czech Republic.
| | - Dinesh Kumar
- School of Bioengineering and Food Technology, Shoolini University of Biotechnology and Management Sciences, Solan, India
| | - Ryszard Amarowicz
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
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8
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Zhou Y, Zhang Y, Yu W, Qin Y, He H, Dai F, Wang Y, Zhu F, Zhou G. Immunomodulatory role of spleen tyrosine kinase in chronic inflammatory and autoimmune diseases. Immun Inflamm Dis 2023; 11:e934. [PMID: 37506139 PMCID: PMC10373573 DOI: 10.1002/iid3.934] [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: 01/26/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND The high prevalence of chronic inflammatory diseases or autoimmune reactions is a major source of concern and affects the quality of life of patients. Chronic inflammatory or autoimmune diseases are associated with many diseases in humans, including asthma, rheumatoid arthritis, systemic lupus erythematosus, inflammatory bowel disease and cancer. Splenic tyrosine kinase (SYK) is a non-receptor tyrosine kinase that plays an important role in immune receptor signalling in immune and inflammatory responses. METHODS This is a review article in which we searched for keywords "splenic tyrosine kinase", "inflammation" and "autoimmune diseases" in published literature such as Pubmed and Web of Science to collect relevant information and then conducted a study focusing on the latest findings on the involvement of SYK in chronic inflammatory or autoimmune diseases. RESULTS This paper reviews the regulation of Fcγ, NF-κB, B cell and T cell-related signalling pathways by SYK, which contributes to disease progression in chronic inflammatory and autoimmune diseases such as airway fibrosis, inflammatory skin disease and inflammatory bowel disease. CONCLUSION This paper shows that SYK plays an important role in chronic inflammatory and autoimmune diseases. syk targets hematological, autoimmune and other inflammatory diseases and therefore, inhibition of SYK expression or blocking its related pathways may provide new ideas for clinical prevention and treatment of inflammatory or autoimmune diseases.
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Affiliation(s)
- Yaqi Zhou
- Department of Clinical Medicine, Jining Medical University, Jining, Shandong, China
| | - Yaowen Zhang
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Wei Yu
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Yufen Qin
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Heng He
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Fengxian Dai
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Yibo Wang
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Fengqin Zhu
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Guangxi Zhou
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
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Rizq AT, Sirwi A, El-Agamy DS, Abdallah HM, Ibrahim SRM, Mohamed GA. Cepabiflas B and C as Novel Anti-Inflammatory and Anti-Apoptotic Agents against Endotoxin-Induced Acute Kidney and Hepatic Injury in Mice: Impact on Bax/Bcl2 and Nrf2/NF-κB Signalling Pathways. BIOLOGY 2023; 12:938. [PMID: 37508369 PMCID: PMC10376508 DOI: 10.3390/biology12070938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/25/2023] [Accepted: 06/27/2023] [Indexed: 07/30/2023]
Abstract
Cepabiflas B and C (CBs) are flavonoid dimers separated from Allium cepa. They demonstrated antioxidant and α-glucosidase and protein tyrosine phosphatase 1B inhibition capacities. However, their anti-inflammatory activities and their effects on endotoxemia are unknown. The current study aimed at exploring the protective activities of CBs on lipopolysaccharide (LPS)-induced kidney and liver damage in mice and investigating the possible molecular mechanisms. Mice were orally treated with a low (40 mg/kg) or high (60 mg/kg) dose of CBs for five days prior to a single intraperitoneal injection of LPS (10 mg/kg). Samples of serum and hepatic and kidney tissues were collected 24 h after the LPS challenge. Changes in serum indices of hepatic and renal injury, pathological changes, molecular biological parameters, and proteins/genes related to inflammation and apoptosis of these organs were estimated. LPS injection resulted in deleterious injury to both organs as indicated by elevation of serum ALT, AST, creatinine, and BUN. The deteriorated histopathology of hepatic and renal tissues confirmed the biochemical indices. CBs treated groups showed a reduction in these parameters and improved histopathological injurious effects of LPS. LPS-induced hepatorenal injury was linked to elevated oxidative stress as indicated by high levels of MDA, 4-HNE, as well as repressed antioxidants (TAC, SOD, and GSH) in hepatic and kidney tissues. This was accompanied with suppressed Nrf2/HO-1 activity. Additionally, there was a remarkable inflammatory response in both organs as NF-κB signalling was activated and high levels of downstream cytokines were produced following the LPS challenge. Apoptotic changes were observed as the level and gene expression of Bax and caspase-3 were elevated along with declined level and gene expression of Bcl2. Interestingly, CBs reversed all these molecular and genetic changes and restricted oxidative inflammatory and apoptotic parameters after LPS-injection. Collectedly, our findings suggested the marked anti-inflammatory and anti-apoptotic activity of CBs which encouraged its use as a new candidate for septic patients.
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Affiliation(s)
- Akaber T Rizq
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Alaa Sirwi
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Dina S El-Agamy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Hossam M Abdallah
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sabrin R M Ibrahim
- Department of Chemistry, Preparatory Year Program, Batterjee Medical College, Jeddah 21442, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Gamal A Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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10
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Babaeenezhad E, Dezfoulian O, Hadipour Moradi F, Rahimi Monfared S, Fattahi MD, Nasri M, Amini A, Ahmadvand H. Exogenous glutathione protects against gentamicin-induced acute kidney injury by inhibiting NF-κB pathway, oxidative stress, and apoptosis and regulating PCNA. Drug Chem Toxicol 2023; 46:441-450. [PMID: 35266424 DOI: 10.1080/01480545.2022.2049290] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study was designed, for the first time, to examine the possible nephroprotective effects of exogenous glutathione (EGSH) (100 mg/kg, intraperitoneally) on gentamicin-induced acute kidney injury (GM-induced AKI). EGSH reduced renal histopathological changes, inflammatory cell infiltration, and improved renal dysfunction in rats with AKI. EGSH ameliorated GM-induced renal oxidative stress by promoting the renal activities of catalase, glutathione peroxidase, and superoxide dismutase and diminishing renal malondialdehyde and serum nitric oxide levels. Interestingly, EGSH inhibited intrinsic apoptosis by downregulating Bax and caspase-3 and upregulating Bcl2 in the kidney of rats with AKI. EGSH decreased GM-induced inflammatory response as reflected by a remarkable decrease in the protein expressions of NF-κB-p65, IL-6, TNF-α, and iNOS and a considerable diminish in myeloperoxidase activity. Finally, EGSH markedly declined proliferative cell nuclear antigen (PCNA) protein expression in the animals with AKI. In summary, EGSH alleviated AKI in rats intoxicated with GM, partially by inhibiting oxidative stress, NF-κB pathway, and intrinsic apoptosis and regulating PCNA.
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Affiliation(s)
- Esmaeel Babaeenezhad
- Department of Clinical Biochemistry, School of Medicine, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Omid Dezfoulian
- Department of Pathobiology, School of Veterinary Medicine, Lorestan University, Khorramabad, Iran
| | - Forouzan Hadipour Moradi
- Razi Herbal Medicines Research Center, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Sobhan Rahimi Monfared
- Razi Herbal Medicines Research Center, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.,Department of Clinical Biochemistry, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mohammad Davood Fattahi
- Department of Clinical Biochemistry, School of Medicine, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Nasri
- Razi Herbal Medicines Research Center, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.,Department of Clinical Biochemistry, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Abdolhakim Amini
- Razi Herbal Medicines Research Center, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.,Department of Clinical Biochemistry, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Hassan Ahmadvand
- Razi Herbal Medicines Research Center, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.,Department of Clinical Biochemistry, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
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11
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Sun S, Chen R, Dou X, Dai M, Long J, Wu Y, Lin Y. Immunoregulatory mechanism of acute kidney injury in sepsis: A Narrative Review. Biomed Pharmacother 2023; 159:114202. [PMID: 36621143 DOI: 10.1016/j.biopha.2022.114202] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/17/2022] [Accepted: 12/30/2022] [Indexed: 01/08/2023] Open
Abstract
Sepsis acute kidney injury (SAKI) is a common complication of sepsis, accounting for 26-50 % of all acute kidney injury (AKI). AKI is an independent risk factor for increased mortality risk in patients with sepsis. The excessive inflammatory cascade reaction in SAKI is one of the main causes of kidney damage. Both the innate immune system and the adaptive immune system are involved in the inflammation process of SAKI. Under the action of endotoxin, neutrophils, monocytes, macrophages, T cells and other complex immune network reactions occur, and a large number of endogenous inflammatory mediators are released, resulting in the amplification and loss of control of the inflammatory response. The study of immune cells in SAKI will help improve the understanding of the immune mechanisms of SAKI, and will lay a foundation for the development of new diagnostic and therapeutic targets. This article reviews the role of known immune mechanisms in the occurrence and development of SAKI, with a view to finding new targets for SAKI treatment.
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Affiliation(s)
- Shujun Sun
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Rui Chen
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaoke Dou
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Maosha Dai
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Junhao Long
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yan Wu
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Yun Lin
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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12
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Tan Z, Liu Q, Chen H, Zhang Z, Wang Q, Mu Y, Li Y, Hu T, Yang Y, Yan X. Pectolinarigenin alleviated septic acute kidney injury via inhibiting Jak2/Stat3 signaling and mitochondria dysfunction. Biomed Pharmacother 2023; 159:114286. [PMID: 36706631 DOI: 10.1016/j.biopha.2023.114286] [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: 11/18/2022] [Revised: 01/15/2023] [Accepted: 01/18/2023] [Indexed: 01/27/2023] Open
Abstract
Sepsis is a systemic inflammatory response to infection, where sepsis-associated acute kidney injury (AKI) is a common morbid disease with a high morbidity and mortality, and however at present no effective therapy exists. Increasing evidence have shown that mitochondrial damage and inflammatory response are important initiating factors in pathogenesis of septic AKI. Natural flavonoid pectolinarigenin exerted anti-inflammatory properties in previous studies, while its role in septic AKI remains unknown. In the study, pectolinarigenin administration significantly ameliorated the dramatic rise of serum creatinine and blood urea nitrogen in lipopolysaccharide (LPS)- and cecal ligation/puncture (CLP)-induced septic mice, respectively. Consistently, LPS/CLP-induced renal damage as implied by histopathological score and the increased injury markers NGAL and KIM-1, which was attenuated by pectolinarigenin. Meanwhile, LPS/CLP triggered proinflammatory cytokine production and inflammation related proteins in the kidneys. However, pectolinarigenin inhibited renal expression of IL-6, IL-1β, TNF-α, and MCP-1 to improve inflammatory response. Furthermore, pectolinarigenin upregulated Bcl-2 protein expression and suppressed apoptotic protein of BAX and cleaved caspase-3 in the kidneys of CLP-induced septic AKI. Mechanistically, LPS could induce the high expression of IL-6 and trigger the phosphorylation of Jak2 and Stat3, while pectolinarigenin remarkably reduced their corresponding levels. Notably, CLP-induced kidney injury of mice significantly reduced the expression of PGC-1α, OPA1 and increased the expression of Drp1, Cyt-C, where pectolinarigenin pretreatment significantly restored their corresponding expression in mice. In summary, pectolinarigenin improved septic AKI via inhibiting JAK2/STAT3 signaling and mitochondria dysfunction.
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Affiliation(s)
- Zhouke Tan
- Department of Nephrology, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China; Organ Transplant Center, Affiliated Hospital of ZunYi Medical University, ZunYi 563000, China.
| | - Qianqian Liu
- Department of Nephrology, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China
| | - Hongjun Chen
- Department of Critical Care Medicine, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China
| | - Ziyang Zhang
- Department of Nephrology, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China
| | - Qin Wang
- Department of Nephrology, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China
| | - Yingsong Mu
- Department of Nephrology, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China
| | - Yiman Li
- Department of Nephrology, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China
| | - TingTing Hu
- Department of Nephrology, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China
| | - Yibin Yang
- Department of Nephrology, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China.
| | - Xiaoyong Yan
- Department of Nephrology, Affiliated Hospital of ZunYi Medical University, ZunYi 563003, China.
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13
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Ghorbanpour A, Salari S, Baluchnejadmojarad T, Roghani M. Capsaicin protects against septic acute liver injury by attenuation of apoptosis and mitochondrial dysfunction. Heliyon 2023; 9:e14205. [PMID: 36938442 PMCID: PMC10018474 DOI: 10.1016/j.heliyon.2023.e14205] [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: 07/10/2022] [Revised: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 03/05/2023] Open
Abstract
Capsaicin is the main pungent bioactive constituent in red chili with promising therapeutic properties due to its anti-oxidative and anti-inflammatory effects. No evidence exists on the beneficial effect of capsaicin on apoptosis and mitochondrial function in acute liver injury (ALI) under septic conditions. For inducing septic ALI, lipopolysaccharide (LPS, 50 μg/kg) and d-galactose (D-Gal, 400 mg/kg) was intraperitoneally injected and capsaicin was given orally at 5 or 20 mg/kg. Functional markers of liver function and mitochondrial dysfunction were determined as well as hepatic assessment of apoptotic, oxidative, and inflammatory factors. Capsaicin at the higher dose appropriately decreased serum level of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in addition to reducing hepatic level of malondialdehyde (MDA), reactive oxygen species (ROS), nitrite, NF-kB, TLR4, IL-1β, TNF-α, caspase 3, DNA fragmentation and boosting sirtuin 1, Nrf2, superoxide dismutase (SOD) activity, and heme oxygenase (HO-1). These beneficial effects of capsaicin were associated with reversal and/or improvement of gene expression for pro-apoptotic Bax, anti-apoptotic Bcl2, mitochondrial and metabolic regulators PGC-1α, sirtuin 1, and AMPK, and inflammation-associated factors. Additionally, capsaicin exerted a hepatoprotective effect, as revealed by its reduction of liver histopathological changes. These findings evidently indicate hepatoprotective property of capsaicin under septic conditions that can be attributed to its down-regulation of oxidative and inflammatory processes besides its potential to attenuate mitochondrial dysfunction and apoptosis.
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Affiliation(s)
| | | | | | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran
- Corresponding author.
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14
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Qi A, Liu Y, Zhai J, Wang Y, Li W, Wang T, Chai Y. RNF20 deletion causes inflammation in model of sepsis through the NLRP3 activation. Immunopharmacol Immunotoxicol 2023:1-10. [PMID: 36650938 DOI: 10.1080/08923973.2023.2170241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Aim: Sepsis is an extremely complex, threatening and difficult-to-treat disease, which can occur at any age and under any underlying disease. RNF20 regulate NF-kappaB (NF-κB) signaling pathway and the transcription of inflammatory factors of target genes. Therefore, it is of great significance to study the function of RNF20 in the clinical treatment of sepsis and its underlying mechanisms.Methods: C57BL/6 mice were subjected to cecal ligation and puncture (CLP) surgery. THP-1 cells were induced with Lipopolysaccharide for 4 h.Results: RNF20 gene, mRNA expression and protein expression were reduced in patients with sepsis and mice with sepsis. Based on RNF20 deletion (RNF20-/-) mice, these were found to be increased inflammation reactions in RNF20-/- mice. However, the RNF20 human protein reduced inflammation reactions in mice with sepsis. In vitro model of sepsis, over-expression of RNF20 inhibited inflammation reactions by inducing Vitamin D Receptor (VDR), while down-regulation of RNF20 promoted inflammation reactions through the suppression of VDR. RNF20 protein was interlinked with VDR protein, and VDR protein was also interlinked with NLRP3. Furthermore, VDR promoted NLRP3 ubiquitination and reduced NLRP3 function in vitro model of sepsis.Conclusion: These studies demonstrate that RNF20 suppressed inflammation reactions in models with sepsis through NLRP3 inflammasome and NLRP3 ubiquitination by activating VDR.
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Affiliation(s)
- Anlong Qi
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - Yancun Liu
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - Jianhua Zhai
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - Yongtao Wang
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - Wang Li
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin, P.R. China
| | - Tong Wang
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin, P.R. China
| | - Yanfen Chai
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, P.R. China
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15
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Yang R, Qi L, Liang W. Neohesperidin dihydrochalbazone protects against septic acute kidney injury in mice. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 110:154623. [PMID: 36608504 DOI: 10.1016/j.phymed.2022.154623] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 11/25/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Neohesperidin dihydrochalbazone (NHDC) shows a range of pharmacological actions, however, in septic acute kidney injury (AKI), the effect of NHDC is little known. PURPOSE To assess the role of NHDC against AKI and the possible mechanisms. METHODS In vivo, we used different concentration of NHDC (50, 100, and 200 mg/kg) treated septic AKI model of mice. Moreover, in vitro, in HK-2 cells, a lipopolysaccharide (LPS) induced cell model was treated with 10, 20, and 30 μM NHDC. Next, kidney tissue pathologic change, marker of renal injury, apoptosis, and inflammatory factors were assessed using hematoxylin and eosin staining, enzyme-linked immunosorbent assay, terminal deoxynucleotidyl transferase dUTP nick end labeling, and western blot. HK-2 cell apoptosis and viability were assessed via flow cytometry and cell counting kit-8. In HK-2 cells and tissues, NLRP3, caspase 1, ASC, and P38/ERK 1/2/JNK pathway related protein levels were tested using western blot. RESULTS NHDC (100 and 200 mg/kg) significantly attenuated kidney injury in caecal ligation and puncture (CLP)-treated mice. In CLP-treated mice, the level of BUN, Scr, KIM-1, and NAGL was reduced by 100 and 200 mg/kg NHDC. Furthermore, 100 and 200 mg/kg NHDC inhibited inflammation by reducing the production of IL-6, TNF-α, and IL-1β, and inhibited oxidative stress by regulating the change of MDA, SOD, GSH, and CAT. NHDC (100 and 200 mg/kg) inhibited renal cell apoptosis by increasing Bcl2 protein expression and inhibiting Bax and cleaved caspase-3 protein expression. Additionally, NHDC (100 and 200 mg/kg) inhibited the protein levels of phosphorylated (p)-P38, p-JNK, p-ERK 1/2, NLRP3, caspase 1, ASC. In vitro, in LPS-stimulated HK-2 cells, NHDC (20 and 30 μM) increased cell viability, reduced cell apoptosis, restrained inflammation by reducing the content of IL-6, TNF-α, and IL-1β, and inhibited the protein expression of caspase 1, NLRP3, ASC, p-P38, p-JNK, and p-ERK1/2. Importantly, the promotive effect of NHDC on HK-2 cell viability was reversed by DHR (an activator of P38 MAPK signaling pathway), and DHR reversed the inhibitive effects of NHDC on HK-2 cell apoptosis and inflammation. CONCLUSION For the first time, NHDC was found to inhibit oxidative stress, inflammation, and apoptosis in AKI model, which was related to the inhibition of P38 MAPK pathways. Our findings provided the theoretical basis for NHDC on the prevention of AKI.
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Affiliation(s)
- Ruihong Yang
- Department of Critical Care Medicine, Jinan Central Hospital, 105 Jiefang Road, Jinan, Shandong 250013, PR China
| | - Lei Qi
- Department of Critical Care Medicine, Jinan Central Hospital, 105 Jiefang Road, Jinan, Shandong 250013, PR China
| | - Wei Liang
- Department of Critical Care Medicine, Jinan Central Hospital, 105 Jiefang Road, Jinan, Shandong 250013, PR China.
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16
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CHAC1 exacerbates LPS-induced ferroptosis and apoptosis in HK-2 cells by promoting oxidative stress. Allergol Immunopathol (Madr) 2023; 51:99-110. [PMID: 36916093 DOI: 10.15586/aei.v51i2.760] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/16/2022] [Indexed: 03/08/2023]
Abstract
BACKGROUND Sepsis-induced acute kidney injury (AKI) is a singularly grievous and life-threatening syndrome. Its pathogenesis is closely related to inflammatory response, apoptosis, oxidative stress, and ferroptosis. Cation transport regulator-like protein 1 (CHAC1), as a proapoptic factor, may be involved in apoptosis, oxidative stress, and ferroptosis. This study aimed to explore the role of CHAC1 in the lipopolysaccharide (LPS)-induced the human renal proximal tubular epithelial (HK-2) cells. METHODS HK-2 cells were challenged with LPS to construct a model of sepsis-induced AKI in vitro. The role of CHAC1 in the LPS-induced HK-2 cells was explored using Western blot assay, cell counting kit-8 (CCK-8), flow cytometry, and colorimetric assays. Additionally, N-acetyl cysteine (NAC) was incubated with HK-2 cells to define deeply the relation between oxidative stress and apoptosis or ferroptosis. RESULTS The expression of CHAC1 was enhanced in the kidney tissues of mice with sepsis--induced multiple organ dysfunction syndrome (MODS), through the Gene Expression Omnibus database (GSE60088 microarray dataset), and in the LPS-induced HK-2 cells. The cell viability was significantly reduced by LPS treatment, which was at least partly restored by the transfection of siCHAC1#1 and siCHAC1#2 but not siNC. In addition, down-regulation of CHAC1 counteracted the LPS-induced reactive oxygen species level and malonaldehyde concentrations while restored the LPS-induced glutathione concentrations. Meanwhile, interference of CHAC1 neutralized LPS-induced apoptosis rate, and the relative level of cleaved poly(ADP-ribose) polymerase (PARP)/PARP, and cleaved caspase-3/caspase-3. In addition, silencing of CHAC1 recovered the LPS-induced enhanced protein level of glutathione peroxidase 4 (GPx4) whereas antagonized the LPS-induced relative protein level of ACSL4 and that of iron. Moreover, application of NAC inverted the effect of CHAC1 on apoptosis and ferroptosis in HK-2 cells. CONCLUSION CHAC1 exacerbated ferroptosis and apoptosis by enhancing oxidative stress in LPS-induced HK-2 cells.
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17
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Guo W, Hu Z. SRPK1 promotes sepsis-induced acute lung injury via regulating PI3K/AKT/FOXO3 signaling. Immunopharmacol Immunotoxicol 2022; 45:203-212. [PMID: 36226860 DOI: 10.1080/08923973.2022.2134789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Sepsis is the most common cause of death in intensive care unit. Moreover, sepsis is the leading cause of acute lung injury (ALI). Serine-arginine protein kinase 1 (SRPK1) was demonstrated to promote the development of ALI. However, the potentials of SRPK1 in sepsis-induced ALI are still unknown. This study aimed to investigate the potentials of SRPK1 in sepsis-induced ALI and the underlying mechanisms. METHODS Cecal ligation and puncture (CLP) was performed to establish sepsis-induced ALI model in vivo. Primary human pulmonary microvascular endothelial cells (HPMECs) were exposed to lipopolysaccharide (LPS) to construct sepsis-induced ALI model in vitro. Gene expression was detected using western blot and qRT-PCR. The interaction between forkhead box O3 (FOXO3) and NOD-like receptor thermal protein domain associated protein 3 (NLRP3) was detected using luciferase and Chromatin immunoprecipitation (ChIP) assay. Cellular functions were CCK-8, colony formation, PI staining, and flow cytometry assay. RESULTS SRPK1 was downregulated in patients with sepsis-induced ALI. Overexpression of SRPK1 suppressed the pyroptosis of HPMECs as well as promoted cell proliferation. Additionally, SRPK1 overexpression alleviated sepsis-induced ALI in vivo. SRPK1 activated phosphatidylinositol3-kinase (PI3K) signaling pathways. Blocking the activation of PI3K degraded the cellular functions of HPMECs. Moreover, FOXO3 transcriptionally inactivated NLRP3 and suppressed its mRNA and protein expression. CONCLUSION Taken together, SRPK1 suppressed sepsis-induced ALI via regulating PI3K/AKT/FOXO3/NLRP3 signaling. SRPK1 may be the potential biomarker for sepsis-induced ALI.
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Affiliation(s)
- Wei Guo
- Department of Medicine, Soochow University, Shizi Street, Gusu District, Suzhou, Jiangsu 215006, China.,Emergency Department, The first affiliated hospital of JinZhou Medical University, Section 5, Renmin Street, Guta District, Jinzhou, Liaoning 121000, China
| | - Zhansheng Hu
- Critical Care Medicine Department, The first affiliated hospital of JinZhou Medical University, Section 5, Renmin Street, Guta District, Jinzhou, Liaoning 121000, China
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18
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Cai Y, Huang C, Zhou M, Xu S, Xie Y, Gao S, Yang Y, Deng Z, Zhang L, Shu J, Yan T, Wan CC. Role of curcumin in the treatment of acute kidney injury: research challenges and opportunities. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 104:154306. [PMID: 35809376 DOI: 10.1016/j.phymed.2022.154306] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 06/13/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Acute kidney injury (AKI) is a common complication in clinical inpatients, and it continues a high morbidity and mortality rate despite many clinical treatment measures. AKI is triggered by infections, surgery, heavy metal exposure and drug side effects, but current chemical drugs often fall short of expectations for AKI treatment and have toxic side effects. Therefore, finding new interventions and treatments, especially of natural origin, is of remarkable clinical significance and application. The herbal monomer curcumin is a natural phenolic compound extracted from the plant Curcuma longa and showed various biological activities, including AKI. Furthermore, recent studies have shown that curcumin restores renal function by modulating the immune system and the release of inflammatory mediators, scavenging oxygen free radicals, reducing apoptosis and improving mitochondrial dynamics. However, curcumin has a low bioavailability, which limits its clinical application. For this reason, it is essential to investigate the therapeutic effects and molecular mechanisms of curcumin in AKI, as well as to improve its bioavailability for curcumin formulation development and clinical application. PURPOSE This review summarizes the sources, pharmacokinetics, and limitations in the clinical application of curcumin and explores methods to optimize its bioavailability using nanotechnology. In particular, the therapeutic effects and molecular mechanisms of curcumin on AKI are highlighted to provide a theoretical basis for AKI treatment in clinical practices. METHODS This review was specifically searched by means of a search of three databases (Web of Science, PubMed and Science Direct), till December 2021. Search terms were "Curcumin", "Acute kidney injury", "AKI", " Pharmacokinetics", "Mitochondria" and "Nano formulations". The retrieved data followed PRISMA criteria (preferred reporting items for systematic review) RESULTS: Studies have shown that curcumin responded to AKI-induced renal injury and restored renal tubular epithelial cell function by affecting multiple signaling pathways in AKI models induced by factors such as cisplatin, lipopolysaccharide, ischemia/reperfusion, gentamicin and potassium dichromate. Curcumin was able to affect NF-κB signaling pathway and reduce the expression of IL-1β, IL-6, IL-8 and TNF-α, thus preventing renal inflammatory injury. In the prevention of renal tubular oxidative damage, curcumin reduced ROS production by activating the activity of Nrf2, HO-1 and PGC-1α. In addition, curcumin restored mitochondrial homeostasis by upregulating OPA1 and downregulating DRP1 expression, while reducing apoptosis by inhibiting the caspase-3 apoptotic pathway. In addition, due to the low bioavailability and poor absorption of curcumin in vivo, curcumin nanoformulations including nanoparticles, liposomes, and polymeric micelles are formulated to improve the bioavailability. CONCLUSION This review provides new ideas for the use of curcumin in the prevention and treatment of AKI by modulating the molecular targets of several different cellular signaling pathways.
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Affiliation(s)
- Yi Cai
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Chaoming Huang
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Mengyu Zhou
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Shiqi Xu
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yongwan Xie
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Shuhan Gao
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yantianyu Yang
- The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Zirong Deng
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Libei Zhang
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Jicheng Shu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Tingdong Yan
- School of Life Sciences, Shanghai University, Shanghai 200444, China.
| | - Chunpeng Craig Wan
- College of Agronomy, Jiangxi Agricultural University, Nanchang, Jiangxi, China.
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19
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Kynurenine Pathway-An Underestimated Factor Modulating Innate Immunity in Sepsis-Induced Acute Kidney Injury? Cells 2022; 11:cells11162604. [PMID: 36010680 PMCID: PMC9406744 DOI: 10.3390/cells11162604] [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: 07/19/2022] [Revised: 08/17/2022] [Accepted: 08/17/2022] [Indexed: 11/17/2022] Open
Abstract
Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection, and it accounts for about half of the cases of acute kidney injury (AKI). Although sepsis is the most frequent cause of AKI in critically ill patients, its pathophysiological mechanisms are not well understood. Sepsis has the ability to modulate the function of cells belonging to the innate immune system. Increased activity of indoleamine 2,3-dioxygenase 1 (IDO1) and production of kynurenines are the major metabolic pathways utilized by innate immunity cells to maintain immunological tolerance. The activation of the kynurenine pathway (KP) plays a dual role in sepsis—in the early stage, the induction of IDO1 elicits strong proinflammatory effects that may lead to tissue damage and septic shock. Afterwards, depletion of tryptophan and production of kynurenines contribute to the development of immunosuppression that may cause the inability to overpower opportunistic infections. The presented review provides available data on the various interdependencies between elements of innate immunity and sepsis-induced AKI (SAKI) with particular emphasis on the immunomodulatory significance of KP in the above processes. We believe that KP activation may be one of the crucial, though underestimated, components of a deregulated host response to infection during SAKI.
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Piperlongumin Improves Survival in the Mouse Model of Sepsis: Effect on Coagulation Factors and Lung Inflammation. Inflammation 2022; 45:2513-2528. [PMID: 35831643 PMCID: PMC9281243 DOI: 10.1007/s10753-022-01709-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/22/2022] [Indexed: 11/05/2022]
Abstract
Excessive inflammation and coagulation contribute to high morbidity and mortality in sepsis. Many studies have indicated the role of piperlongumine (PL) in anti-inflammation, but its effect on coagulation remains uncertain. Here, we explore whether PL could moderate coagulation indicators and alleviate lung inflammation during sepsis. RAW264.7 cells were induced by lipopolysaccharide (LPS) and treated with PL. Inflammatory and coagulation indicators, cell function and signaling, were evaluated in cells. Cecal ligation and puncture (CLP) mice were treated with PL by gavage. The harvested lungs and plasma were used to assess inflammation and coagulation indicators. As a result, PL increased the survival rate and reduced the concentrations of tissue factor (TF), plasminogen activator inhibitor 1 (PAI-1), thrombin-antithrombin complex (TAT), D-dimer, interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α in CLP mice, with fibrinogen in reverse. Moreover, the PL alleviated inflammation, fibrin deposition, and lung injury in the lungs of CLP mice. In vitro, PL downregulated the expression of TF, PAI-1, IL-6, TNF-α, and IL-1β in RAW264.7 cells induced by LPS. Furthermore, PL inhibited the phosphorylation of the AKT/mTOR signaling pathway's key proteins and suppressed the nuclear translocation of p-STAT3 in LPS-stimulated RAW264.7 cells. In conclusion, this study suggests that PL may modulate coagulation indicators and improve lung inflammation through AKT/mTOR signaling pathway in sepsis.
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Begum R, Thota S, Abdulkadir A, Kaur G, Bagam P, Batra S. NADPH oxidase family proteins: signaling dynamics to disease management. Cell Mol Immunol 2022; 19:660-686. [PMID: 35585127 DOI: 10.1038/s41423-022-00858-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 03/12/2022] [Indexed: 12/16/2022] Open
Abstract
Reactive oxygen species (ROS) are pervasive signaling molecules in biological systems. In humans, a lack of ROS causes chronic and extreme bacterial infections, while uncontrolled release of these factors causes pathologies due to excessive inflammation. Professional phagocytes such as neutrophils (PMNs), eosinophils, monocytes, and macrophages use superoxide-generating NADPH oxidase (NOX) as part of their arsenal of antimicrobial mechanisms to produce high levels of ROS. NOX is a multisubunit enzyme complex composed of five essential subunits, two of which are localized in the membrane, while three are localized in the cytosol. In resting phagocytes, the oxidase complex is unassembled and inactive; however, it becomes activated after cytosolic components translocate to the membrane and are assembled into a functional oxidase. The NOX isoforms play a variety of roles in cellular differentiation, development, proliferation, apoptosis, cytoskeletal control, migration, and contraction. Recent studies have identified NOX as a major contributor to disease pathologies, resulting in a shift in focus on inhibiting the formation of potentially harmful free radicals. Therefore, a better understanding of the molecular mechanisms and the transduction pathways involved in NOX-mediated signaling is essential for the development of new therapeutic agents that minimize the hyperproduction of ROS. The current review provides a thorough overview of the various NOX enzymes and their roles in disease pathophysiology, highlights pharmacological strategies, and discusses the importance of computational modeling for future NOX-related studies.
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Affiliation(s)
- Rizwana Begum
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA
| | - Shilpa Thota
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA
| | - Abubakar Abdulkadir
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA
| | - Gagandeep Kaur
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA.,Department of Environmental Medicine, University of Rochester, School of Medicine and Dentistry, Rochester, NY, 14642, USA
| | - Prathyusha Bagam
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA.,Division of Systems Biology, National Center for Toxicological Research, Jefferson, AR, 72079, USA
| | - Sanjay Batra
- Laboratory of Pulmonary Immunotoxicology, Department of Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA, 70813, USA.
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22
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Feng J, Gao H, Yang L, Xie Y, El-Kenawy AE, El-Kott AF. Renoprotective and hepatoprotective activity of Lepidium draba L. extracts on oxymetholone-induced oxidative stress in rat. J Food Biochem 2022; 46:e14250. [PMID: 35633194 DOI: 10.1111/jfbc.14250] [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: 11/22/2021] [Revised: 03/29/2022] [Accepted: 04/19/2022] [Indexed: 11/29/2022]
Abstract
Misuse and abuse of anabolic androgenic steroids (AAS) such as oxymetholone (OM) cause side effects such as male infertility, cardiovascular disorders, musculoskeletal, and hepato-renal dysfunctions in athletes. The aim of this study was to evaluate the protective effects of Lepidium draba L. (L. draba) extract on OM-induced hepato-renal toxicity. Thirty adult male Wistar rats into six groups (n = 5) were randomly divided as follows: control (normal saline), OM (5 mg/kg/day), L. draba-treated (100, 200, and 400 mg/kg/d) plus 5 mg/kg/day OM, and L. draba (400 mg/kg/d) groups. Normal saline, OM and L. draba extract were orally administered for 30 days. On day 31 of the study, hepatic and renal biochemical parameters were measured. Serum cytokines (IL-1β, IL-10, IL-6) tumor necrosis factor- α (TNF-α) and nitric oxide, levels alongside catalase, glutathione peroxidase, and superoxide dismutase activity were evaluated. Also, changes in liver and kidney histopathology were evaluated. Finally, the anti-oxidant properties of the extract were determined. The results of this study showed that in the groups treated with the L. draba extract, hepatic-renal biochemical parameters improved and also the level of nitric oxide and inflammatory cytokines decreased and the activity of anti-oxidant enzymes increased compared with the OM group. These findings revealed that L. draba, due to its high anti-oxidant properties and high content of polyphenols (especially flavonoids), can improve OM-induced hepato-renal oxidative damages. PRACTICAL APPLICATIONS: L. draba due to its remarkable anti-oxidant and anti-inflammatory properties can protects the kidney and liver injuries against oxymetholone. These features are attributed to the presence of phenolic and flavonoid components. This fidings would be helpful to desgin new therapeutic agents for treating and preventing liver/kidney injuries.
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Affiliation(s)
- Jinge Feng
- Department of Hepatobiliary Surgery, Xian Yang Central Hospital, Xianyang City, China
| | - Hongbo Gao
- Department of Gastroenterology, People's Hospital of Zhangqiu, Jinan, China
| | - Lin Yang
- Department of Hepatobiliary Surgery, Xian Yang Central Hospital, Xianyang City, China
| | - Yu Xie
- Department of Hepatobiliary Surgery, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Ayman E El-Kenawy
- Pathology Department, College of Medicine, Taif University, Taif, Saudi Arabia
| | - Attalla F El-Kott
- Biology Department, College of Science, King Khalid University, Abha, Saudi Arabia.,Zoology Department, College of Science, Damanhour University, Damanhour, Egypt
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23
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Li Z, Ludwig N, Thomas K, Mersmann S, Lehmann M, Vestweber D, Pittet JF, Gomez H, Kellum JA, Rossaint J, Zarbock A. The Pathogenesis of Ischemia-Reperfusion Induced Acute Kidney Injury Depends on Renal Neutrophil Recruitment Whereas Sepsis-Induced AKI Does Not. Front Immunol 2022; 13:843782. [PMID: 35529856 PMCID: PMC9069608 DOI: 10.3389/fimmu.2022.843782] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 03/25/2022] [Indexed: 11/13/2022] Open
Abstract
Acute kidney injury (AKI) may be induced by different causes, including renal ischemia-reperfusion injury and sepsis, which represent the most common reasons for AKI in hospitalized patients. AKI is defined by reduced urine production and/or increased plasma creatinine. However, this definition does not address the molecular mechanisms of different AKI entities, and uncertainties remain regarding distinct pathophysiological events causing kidney injury in the first place. In particular, sepsis-induced AKI is considered not to be associated with leukocyte infiltration into the kidney, but a direct investigation of this process is missing to this date. In this study, we used two murine AKI models induced by either renal ischemia-reperfusion injury (IRI) or cecal ligation and puncture (CLP) to investigate the contribution of neutrophils to tissue injury and kidney function. By using VEC-Y731F mice, in which neutrophil recruitment is impaired, we analyzed the specific contribution of neutrophil recruitment to the pathogenesis of IRI- and CLP-induced AKI. We observed that the degree of renal injury evaluated by plasma creatinine, urinary biomarkers and histological analyses, following IRI-induction was dependent on neutrophil migration into the kidney, whereas the pathogenesis of CLP-induced AKI was independent of neutrophil recruitment. Furthermore, plasma transfer experiments suggest that the pathogenesis of CLP-induced AKI relies on circulating inflammatory mediators. These results extend our knowledge of the AKI pathogenesis and may help in the development of prophylactic and therapeutic treatments for AKI patients.
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Affiliation(s)
- Zhenhan Li
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Nadine Ludwig
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Katharina Thomas
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Sina Mersmann
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Martin Lehmann
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Dietmar Vestweber
- Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Jean-Francois Pittet
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Hernando Gomez
- The Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - John A. Kellum
- The Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jan Rossaint
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Alexander Zarbock
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
- *Correspondence: Alexander Zarbock,
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Yan X, Tan XY, Li YX, Wang HB, Jin JB, Mao YR, Hu JB, Wu LH. A Stepwise Targeting Curcumin Derivative, Ser@TPP@CUR, for Acute Kidney Injury. ACS Med Chem Lett 2022; 13:554-559. [PMID: 35450367 PMCID: PMC9014501 DOI: 10.1021/acsmedchemlett.1c00585] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 03/04/2022] [Indexed: 11/30/2022] Open
Abstract
Based on the pathological mechanisms of acute kidney injury (AKI), a stepwise targeting curcumin derivative, Ser@TPP@CUR, was developed in this study. Ser@TPP@CUR can be specifically internalized by renal tubular epithelial cells via KIM-1 receptor-mediated endocytosis and then actively distributed in mitochondria under the effect of TPP, a mitochondrial targeting molecule. Both in vitro and in vivo results showed that Ser@TPP@CUR effectively ameliorated injured renal tubular epithelial cells and improved renal functions of AKI mice.
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Affiliation(s)
- Xia Yan
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315800, China
| | - Xue-Ying Tan
- College of Pharmacy, Zhejiang Pharmaceutical College, Ningbo 315100, China
| | - Yi-Xuan Li
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Hong-Bo Wang
- Department of Pharmacy, Ningbo University Affiliated Yangming Hospital, Yuyao 315400, China
| | - Jian-Bo Jin
- Department of Pharmacy, Ningbo University Affiliated Yangming Hospital, Yuyao 315400, China
| | - Ying-Rui Mao
- Medical College, Ningbo University, Ningbo 315211, China
| | - Jing-Bo Hu
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Ling-Hui Wu
- Department of Nephrology, The People’s Hospital of Lishui, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
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25
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Wang J, Zhang W, Jin Z, Ding Y, Zhang S, Wu D, Cao Y. A lethal model of Leptospira infection in hamster nasal mucosa. PLoS Negl Trop Dis 2022; 16:e0010191. [PMID: 35192629 PMCID: PMC8863242 DOI: 10.1371/journal.pntd.0010191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/21/2022] [Indexed: 02/07/2023] Open
Abstract
Leptospirosis is a fatal zoonosis caused by contact between skin or a mucosal surface and contaminated soil or water. Hamsters were infected by intraperitoneal injection fto establish experimental leptospirosis, which is not a natural route of infection. There are no reports of nasal mucosal infection in hamsters. In this study, infection of the nasal mucosa was performed to establish a model of natural infection. Both methods of infection can cause lethal models with similar symptoms in the later stages of infection, such as weight loss, blood concentration, increased neutrophils (GRAN), and decreased lymphocytes (LYM) in the blood, severe organ damage and liver function obstruction. The burden of Leptospira in the organs and blood was lower in the mucosal inoculation groups at 1 day after infection. However, mucosal infection induced a higher Leptospira burden in urine than intraperitoneal infection in the late stages of infection. After nasal mucosal infection, antibody levels were higher and lasted longer. These results indicated that the route of nasal mucosal infection is a good choice for studying leptospirosis in hamsters. The establishment of a leptospirosis experimental model is still key to elucidating the pathogenesis of leptospirosis. Hamsters were infected by intraperitoneal injection to establish experimental leptospirosis, although this is not a natural route of infection. The transmission characteristics of Leptospira and the disease progression in hamsters infected by a natural transmission route (e.g. through mucosal surfaces) had not been explored. In this study, we compared the dynamics of Leptospira infection in hamsters inoculated via the nasal mucosa or by intraperitoneal inoculation, and compared the burden of Leptospira and the level of antibodies produced with disease progression, such as body weight, serology, haematological changes and histopathological changes. Our data suggested that there are significant differences in the dynamics of infection between intraperitoneal and mucosal infection pathways. Although the result was the same in the later stage of infection, the course of mucosal infection was slower, which may better recapitulate the natural history of the disease, assist in studying kidney disease caused by Leptospira, and provide an animal model for the study of leptospirosis mucosal immunity.
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Affiliation(s)
- Jiaqi Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, People’s Republic of China
| | - Wenlong Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, People’s Republic of China
- Key Laboratory for Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, People’s Republic of China
| | - Zhao Jin
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, People’s Republic of China
| | - Yue Ding
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, People’s Republic of China
| | - Shilei Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, People’s Republic of China
| | - Dianjun Wu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, People’s Republic of China
- * E-mail: (DW); (YC)
| | - Yongguo Cao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, People’s Republic of China
- Key Laboratory for Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, People’s Republic of China
- * E-mail: (DW); (YC)
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Aqueous Two-Phase Extraction, Antioxidant and Renal Protective Effects of Polysaccharides from Spores of Cordyceps cicadae. Processes (Basel) 2022. [DOI: 10.3390/pr10020348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was to investigate the aqueous two-phase extraction (ATPE), in vitro antioxidant, and in vivo renal protective effects of polysaccharides from spores of Cordyceps cicadae (CCSPs). The optimal ATPE parameters were as follows: an extraction temperature of 61 °C, an ammonium sulfate concentration of 18%, an ethanol concentration of 40%, a liquid-to-material ratio of 33 mL/g, and an extraction time of 60 min. Under these parameters, the CCSPs yield was 6.96 ± 0.11% (n = 3), which was consistent with the predicted yield (6.92%). Among the three purified polysaccharide fractions, CCSP-2 displayed stronger scavenging activities against DPPH radicals and hydroxyl radicals, reducing power and ferrous-ion-chelating ability to a greater extent than CCSP-1 and CCSP-3. CCSP-2 exhibited its protective effect in lipopolysaccharide (LPS)-induced septic acute kidney injury (AKI) mice by significantly alleviating renal edema; reducing 24 h urine protein, blood urea nitrogen (BUN), and serum creatinine (SCr); inhibiting the release of serum proinflammatory cytokines; boosting the activities of antioxidant enzymes; and reducing the levels of oxidative damage products. These results suggest that CCSP-2 exerted its protective effect against LPS-induced septic AKI in mice through anti-inflammatory and antioxidant pathways.
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Wang L, Deng Z, Sun Y, Zhao Y, Li Y, Yang M, Yuan R, Liu Y, Qian Z, Zhou F, Kang H. The Study on the Regulation of Th Cells by Mesenchymal Stem Cells Through the JAK-STAT Signaling Pathway to Protect Naturally Aged Sepsis Model Rats. Front Immunol 2022; 13:820685. [PMID: 35197984 PMCID: PMC8858840 DOI: 10.3389/fimmu.2022.820685] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/17/2022] [Indexed: 12/16/2022] Open
Abstract
Sepsis is the leading cause of death among patients, especially elderly patients, in intensive care units worldwide. In this study, we established a sepsis model using naturally aged rats and injected 5×106 umbilical cord-derived MSCs via the tail vein. Each group of rats was analyzed for survival, examined for biochemical parameters, stained for organ histology, and analyzed for the Th cell subpopulation ratio and inflammatory cytokine levels by flow cytometry. Western blotting was performed to detect the activity of the JAK-STAT signaling pathway. We designed the vitro experiments to confirm the regulatory role of MSCs, and verified the possible mechanism using JAK/STAT inhibitors. It was revealed from the experiments that the 72 h survival rate of sepsis rats treated with MSCs was significantly increased, organ damage and inflammatory infiltration were reduced, the levels of organ damage indicators were decreased, the ratios of Th1/Th2 and Th17/Treg in peripheral blood and spleen were significantly decreased, the levels of pro-inflammatory cytokines such as IL-6 were decreased, the levels of anti-inflammatory cytokines such as IL-10 were increased, and the levels of STAT1 and STAT3 phosphorylation were reduced. These results were validated in in vitro experiments. Therefore, this study confirms that MSCs can control the inflammatory response induced by sepsis by regulating Th cells and inflammatory factors, and that this leads to the reduction of tissue damage, protection of organ functions and ultimately the improvement of survival in aged sepsis model rats. Inhibition of the JAK-STAT signaling pathway was surmised that it may be an important mechanism for their action.
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Affiliation(s)
- Lu Wang
- Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- Department of Critical Care Medicine, the First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Zihui Deng
- Department of Basic Medicine, Graduate School, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Yan Sun
- School of Public Health, Capital Medical University, Beijing, China
| | - Yan Zhao
- Department of Critical Care Medicine, the First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Yun Li
- Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- Department of Critical Care Medicine, the First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Mengmeng Yang
- Department of Critical Care Medicine, the First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Rui Yuan
- Department of Critical Care Medicine, the First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Yuyan Liu
- Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- Department of Critical Care Medicine, the First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Zhirong Qian
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Feihu Zhou
- Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- Department of Critical Care Medicine, the First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Hongjun Kang
- Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
- Department of Critical Care Medicine, the First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- *Correspondence: Hongjun Kang,
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Saithong S, Saisorn W, Dang CP, Visitchanakun P, Chiewchengchol D, Leelahavanichkul A. Candida Administration Worsens Neutrophil Extracellular Traps in Renal Ischemia Reperfusion Injury Mice: An Impact of Gut Fungi on Acute Kidney Injury. J Innate Immun 2022; 14:502-517. [PMID: 35093955 PMCID: PMC9485968 DOI: 10.1159/000521633] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/30/2021] [Indexed: 11/19/2022] Open
Abstract
Because of gut-barrier defect (gut-leakage) after acute kidney injury (AKI) and higher abundance of Candida albicans in human intestines compared with mouse guts, Candida administration in renal ischemia reperfusion injury (I/R) mice possibly more closely resemble patients with AKI than non-Candida model. Fungi in feces were detectable only in mice with Candida administration. Candida renal-I/R mice, when compared with non-Candida I/R, demonstrated more profound injuries, including (i) gut-leakage; FITC-dextran assay and serum (1→3)-β-D-glucan (BG), (ii) systemic inflammation (serum cytokines), and (iii) neutrophil extracellular traps (NETs); gene expression of peptidyl arginase 4 (PAD4) and IL-1β, nuclear morphology staining by 4′,6-diamidino-2-phenylindole (DAPI) and co-staining of myeloperoxidase (MPO) with neutrophil elastase (NE) in peripheral blood neutrophils. Although renal excretory function (serum creatinine) and renal histology score were nondifferent between renal-I/R mice with and without Candida, prominent renal NETs (PAD4 and IL-1β expression with MPO and NE co-staining) was demonstrated in Candida renal-I/R mice. Additionally, neutrophil activation by lipopolysaccharide (LPS) plus BG (LPS + BG), when compared with LPS alone, caused (i) NETs formation; dsDNA, DAPI-stained nuclear morphology and MPO with NE co-staining, (ii) inflammatory responses; Spleen tyrosine kinase (Syk) and NFκB expression, and (iii) reduced cell energy status (maximal respiratory capacity using extracellular flux analysis). Also, LPS + BG-activated NETs formation was inhibited by a dectin-1 inhibitor, supporting an impact of BG signaling. In conclusion, Candida-renal I/R demonstrated more prominent serum BG and LPS from gut translocation that increased systemic inflammation and NETs through TLR-4 and dectin-1 activation. The influence of gut fungi in AKI should be concerned.
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Li R, Hu X, Chen H, Zhao Y, Gao X, Yuan Y, Guo H, Huang H, Zou X, Qi H, Liu H, Shang Y. Role of Cholinergic Anti-Inflammatory Pathway in Protecting Sepsis-Induced Acute Lung Injury through Regulation of the Conventional Dendritic Cells. Mediators Inflamm 2022; 2022:1474891. [PMID: 35125962 PMCID: PMC8813293 DOI: 10.1155/2022/1474891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The cholinergic anti-inflammatory pathway connects the immune response system and the nervous system via the vagus nerve. The key regulatory receptor is the α7-subtype of the nicotinic acetylcholine receptor (α7nAChR). Cholinergic anti-inflammatory pathway has been proved to be effective in suppressing the inflammation responses in acute lung injury (ALI). Dendritic cells (DCs), the important antigen-presenting cells, also express the α7nAChR. Past studies have indicated that reducing the quantity of mature conventional DCs and inhibiting the maturation of pulmonary DCs may prove effective for the treatment of ALI. However, the effects of cholinergic anti-inflammatory pathway on maturation, function, and quantity of DCs and conventional DCs in ALI remain unclear. OBJECTIVE It was hypothesized that cholinergic anti-inflammatory pathway may inhibit the inflammatory response of ALI by regulating maturation, phenotype, and quantity of DCs and conventional DCs. METHODS GTS-21 (GTS-21 dihydrochloride), an α7nAchR agonist, was prophylactically administered in sepsis-induced ALI mouse model and LPS-primed bone marrow-derived dendritic cells. The effects of GTS-21 were observed with respect to maturation, phenotype, and quantity of DCs, conventional DCs, and conventional DCs2 (type 2 conventional DCs) and the release of DC-related proinflammatory cytokines in vivo and in vitro. RESULTS The results of the present study revealed that GTS-21 treatment decreased the maturation of DCs and the production of DC-related proinflammatory cytokines in vitro and in sepsis-induced ALI mouse model; it reduced the quantity of CD11c+MHCII+ conventional DCs and CD11c+CD11b+ conventional DCs2 in vivo experiment. CONCLUSIONS Cholinergic anti-inflammatory pathway contributes to the reduction in the inflammatory response in ALI by regulating maturation, phenotype, and quantity of DCs, conventional DCs, and conventional DCs2.
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Affiliation(s)
- Ruiting Li
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Xuemei Hu
- Department of Nephrology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province 442000, China
| | - Huibin Chen
- Department of Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province 442000, China
| | - Yue Zhao
- Department of Critical Care Medicine, Jin Yin-tan Hospital, Wuhan, Hubei 430048, China
| | - Xuehui Gao
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Yin Yuan
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Huiling Guo
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Haiyan Huang
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Xiaojing Zou
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Hong Qi
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Hong Liu
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - You Shang
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
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Mizuguchi S, Gotoh K, Nakashima Y, Setoyama D, Takata Y, Ohga S, Kang D. Mitochondrial Reactive Oxygen Species Are Essential for the Development of Psoriatic Inflammation. Front Immunol 2021; 12:714897. [PMID: 34421919 PMCID: PMC8378889 DOI: 10.3389/fimmu.2021.714897] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/16/2021] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is a common immune-mediated, chronic, inflammatory skin disease that affects approximately 2-3% of the population worldwide. Although there is increasing evidence regarding the essential roles of the interleukin (IL)-23/IL-17 axis and dendritic cell (DC)-T cell crosstalk in the development of skin inflammation, the contributions of mitochondrial function to psoriasis are unclear. In a mouse model of imiquimod (IMQ)-induced psoriasiform skin inflammation, we found that hematopoietic cell-specific genetic deletion of p32/C1qbp, a regulator of mitochondrial protein synthesis and metabolism, protects mice from IMQ-induced psoriatic inflammation. Additionally, we demonstrate that p32/C1qbp is an important regulator of IMQ-induced DC activation, both in vivo and in vitro. We also found that p32/C1qbp-deficient DCs exhibited impaired production of IL-1β, IL-23, and mitochondrial reactive oxygen species (mtROS) after IMQ stimulation. Because the inhibition of mtROS suppressed IMQ-induced DC activation and psoriatic inflammation, we presume that p32/C1qbp and mtROS can serve as therapeutic targets in psoriasis.
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Affiliation(s)
- Soichi Mizuguchi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuhito Gotoh
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuya Nakashima
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Daiki Setoyama
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yurie Takata
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Zhao J, Duan Q, Dong C, Cui J. Cul4a attenuates LPS-induced acute kidney injury via blocking NF-κB signaling pathway in sepsis. J Med Biochem 2021; 41:62-70. [PMID: 35611245 PMCID: PMC9069243 DOI: 10.5937/jomb0-33096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 07/29/2021] [Indexed: 11/24/2022] Open
Abstract
Background Acute kidney injury (AKI) is a common disease that can develop into end-stage kidney disease. Sepsis is one of the main causes of AKI. Currently, there is no satisfactory way to treat septic AKI. Therefore, we have shown the protective function of Cul4a in septic AKI and its molecular mechanism. Methods The cellular and animal models of septic AKI were established by using lipopolysaccharide (LPS). Western blot (WB) was employed to analyze Cul4a expression. RT-qPCR was employed to test the expression of Cul4a, SOD1, SOD2, GPX1, CAT, IL-6, TNF-a, Bcl-2, IL1b, Bax and KIM-1 mRNA. ELISA was performed to detect the contents of inflammatory factors and LDH. CCK-8 was utilized to detect cell viability. Flow cytometry was utilized to analyze the apoptosis. DHE-ROS kit was used to detect the content of ROS. Results Cul4a was down-regulated in cellular and animal models of septic AKI. Oxidative stress is obviously induced by LPS, as well as apoptosis and inflammation. However, these can be significantly inhibited by up-regulating Cul4a. Moreover, LPS induced the activation of the NF-kB pathway, which could also be inhibited by overexpression of Cul4a. Conclusions Cul4awas found to be a protective factor in septic AKI, which could inhibit LPS-induced oxidative stress, apoptosis and inflammation of HK-2 cells by inhibiting the NF-kB pathway.
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Affiliation(s)
- Jing Zhao
- Yantaishan Hospital, Department of Critical Care Medicine, Yantai, China
| | - Qiuxia Duan
- The Third People's Hospital of Qingdao, Department of Critical Care Medicine, Qingdao, China
| | - Cuihong Dong
- Shandong College of Traditional Chinese Medicine, Yantai, China
| | - Jing Cui
- The Third People's Hospital of Qingdao, Department of Emergency, Qingdao, China
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Wang QL, Xing W, Yu C, Gao M, Deng LT. ROCK1 regulates sepsis-induced acute kidney injury via TLR2-mediated endoplasmic reticulum stress/pyroptosis axis. Mol Immunol 2021; 138:99-109. [PMID: 34365196 DOI: 10.1016/j.molimm.2021.07.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 07/20/2021] [Accepted: 07/27/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND It has been reported that ROCK1 participates in the progression of multiple diseases, including septic intestinal barrier, cardiac dysfunction and acute lung injury. However, its regulatory role and specific mechanism in sepsis-induced acute kidney injury (AKI) remain unclear. METHODS Cecal ligation puncture (CLP) was conducted to establish sepsis mouse model, and in vitro model was achieved by lipopolysaccharide (LPS) stimulation. Genes expression was evaluated by qRT-PCR, western blot or ELISA was conducted to assess the levels of proteins. Hoechst staining was performed to evaluate cell pyroptosis. LDH activity assay was detected to assess cytotoxicity. Immunohistochemistry was conducted to detect Ly-6G expression and neutrophils distribution in kidney tissues of mice. H&E and TUNEL staining were carried to evaluate kidney injury of mice. RESULTS Our findings illuminated that ROCK1 was highly expressed in sepsis-induced AKI, and ROCK1 knockdown inhibited NLRP3-mediated cell pyroptosis in LPS-induced HK-2 cells. Moreover, ROCK1 modulated HK-2 cell pyroptosis by regulating endoplasmic reticulum stress (ERS). TLR2 inhibitor could suppress ERS mediated cell pyroptosis under LPS treatment. Further, TLR2 activator partially reversed the effects of ROCK1 inhibition on ERS mediated pyroptosis in LPS-treated HK-2 cells and CLP mice. CONCLUSION In conclusion, ROCK1 may regulate sepsis-induced AKI via TLR2-mediated ERS/pyroptosis axis. Our data demonstrated the role and underlying mechanism of ROCK1 in septic AKI, providing theoretical basis for sepsis-induced AKI treatment.
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Affiliation(s)
- Qian-Lu Wang
- Department of Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, People's Republic of China
| | - Wei Xing
- Department of Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, People's Republic of China
| | - Can Yu
- Department of Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, People's Republic of China
| | - Min Gao
- Department of Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, People's Republic of China
| | - Long-Tian Deng
- Department of Critical Care Medicine, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, People's Republic of China.
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do Valle GT, Ricci ST, Silva AO, Tirapelli CR, Ceron CS. Ethanol consumption increases renal dysfunction and mortality in a mice model of sub-lethal sepsis. Can J Physiol Pharmacol 2021; 99:699-707. [PMID: 33290154 DOI: 10.1139/cjpp-2020-0564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chronic ethanol consumption and sepsis cause oxidative stress and renal dysfunction. This study aimed to examine whether chronic ethanol consumption sensitizes the mouse kidney to sub-lethal cecal ligation and puncture (SL-CLP) sepsis, leading to impairment of renal function by tissue oxidative and inflammatory damage. Male C57BL/6J mice were treated for 9 weeks with ethanol (20%, v/v) before SL-CLP was induced. Systolic blood pressure (SBP), survival rate, creatinine plasma, oxidative stress, and inflammatory parameters, inducible nitric oxide synthase (iNOS), cytokines, and metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) levels were evaluated. Chronic ethanol consumption increased SBP, plasma creatinine, O2.-, H2O2, lipid peroxidation, catalase activity, Nox4, IL-6, and TNF-α levels, and MMP-9/TIMP-1 ratio. SL-CLP decreased SBP, increased creatinine, lipid peroxidation, IL-6, TNF-α, nitrate/nitrite (NOx), and iNOS levels, and MMP-2/TIMP-2 ratio, and decreased catalase activity. SL-CLP mice previously treated with ethanol showed a similar decrease in SBP but higher mortality and creatinine levels than SL-CLP alone. These responses were mediated by increased O2-, lipid peroxidation, IL-6, TNF-α, NOx, iNOS, MMP-2, and MMP-9 levels, and MMP-9/TIMP-1 and MMP-2/TIMP-2 ratios. Our findings demonstrated that previous oxidative stress and inflammatory damage caused by ethanol consumption sensitizes the kidney to SL-CLP injury, resulting in impaired kidney function and sepsis prognosis.
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Affiliation(s)
- Gabriel Tavares do Valle
- Escola de Enfermagem de Ribeirão Preto (EERP), Universidade de São Paulo -USP, São Paulo, Brasil
| | - Sthefany Teodoro Ricci
- Escola de Enfermagem de Ribeirão Preto (EERP), Universidade de São Paulo -USP, São Paulo, Brasil
| | - Alessandra Oliveira Silva
- Departamento de Alimentos e Medicamentos, Universidade Federal de Alfenas (UNIFAL-MG), Minas Gerais, Brasil
| | - Carlos Renato Tirapelli
- Escola de Enfermagem de Ribeirão Preto (EERP), Universidade de São Paulo -USP, São Paulo, Brasil
| | - Carla Speroni Ceron
- Departamento de Alimentos e Medicamentos, Universidade Federal de Alfenas (UNIFAL-MG), Minas Gerais, Brasil
- Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto (UFOP), Minas Gerais, Brasil
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Saisorn W, Saithong S, Phuengmaung P, Udompornpitak K, Bhunyakarnjanarat T, Visitchanakun P, Chareonsappakit A, Pisitkun P, Chiewchengchol D, Leelahavanichkul A. Acute Kidney Injury Induced Lupus Exacerbation Through the Enhanced Neutrophil Extracellular Traps (and Apoptosis) in Fcgr2b Deficient Lupus Mice With Renal Ischemia Reperfusion Injury. Front Immunol 2021; 12:669162. [PMID: 34248948 PMCID: PMC8269073 DOI: 10.3389/fimmu.2021.669162] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/31/2021] [Indexed: 12/14/2022] Open
Abstract
Renal ischemia is the most common cause of acute kidney injury (AKI) that might be exacerbate lupus activity through neutrophil extracellular traps (NETs) and apoptosis. Here, the renal ischemia reperfusion injury (I/R) was performed in Fc gamma receptor 2b deficient (Fcgr2b-/-) lupus mice and the in vitro experiments. At 24 h post-renal I/R injury, NETs in peripheral blood neutrophils and in kidneys were detected using myeloperoxidase (MPO), neutrophil elastase (NE) and citrullinated histone H3 (CitH3), as well as kidney apoptosis (activating caspase-3), which were prominent in Fcgr2b-/- mice more compared to wild-type (WT). After 120 h renal-I/R injury, renal NETs (using MPO and NE) were non-detectable, whereas glomerular immunoglobulin (Ig) deposition and serum anti-dsDNA were increased in Fcgr2b-/- mice. These results imply that renal NETs at 24 h post-renal I/R exacerbated the lupus nephritis at 120 h post-renal I/R injury in Fcgr2b-/- lupus mice. Furthermore, a Syk inhibitor attenuated NETs, that activated by phorbol myristate acetate (PMA; a NETs activator) or lipopolysaccharide (LPS; a potent inflammatory stimulator), more prominently in Fcgr2b-/- neutrophils than the WT cells as determined by dsDNA, PAD4 and MPO. In addition, the inhibitors against Syk and PAD4 attenuated lupus characteristics (serum creatinine, proteinuria, and anti-dsDNA) in Fcgr2b-/- mice at 120 h post-renal I/R injury. In conclusion, renal I/R in Fcgr2b-/- mice induced lupus exacerbation at 120 h post-I/R injury partly because Syk-enhanced renal NETs led to apoptosis-induced anti-dsDNA, which was attenuated by a Syk inhibitor.
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Affiliation(s)
- Wilasinee Saisorn
- Medical Microbiology, Interdisciplinary and International Program, Graduate School, Chulalongkorn University, Bangkok, Thailand
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Supichcha Saithong
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Pornpimol Phuengmaung
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Kanyarat Udompornpitak
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Thansita Bhunyakarnjanarat
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Peerapat Visitchanakun
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Awirut Chareonsappakit
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Prapaporn Pisitkun
- Division of Allergy, Immunology, and Rheumatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Direkrit Chiewchengchol
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Asada Leelahavanichkul
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand
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Circ_0091702 serves as a sponge of miR-545-3p to attenuate sepsis-related acute kidney injury by upregulating THBS2. J Mol Histol 2021; 52:717-728. [PMID: 34101064 DOI: 10.1007/s10735-021-09991-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 06/02/2021] [Indexed: 12/16/2022]
Abstract
Circular RNA (circRNA) has been shown to play an important function in the progression of human diseases, including sepsis with acute kidney injury (AKI). However, the role and mechanism of circ_0091702 in sepsis-induced AKI have yet to be confirmed. Lipopolysaccharide (LPS) was used to induce HK2 cells to construct AKI cell models in vitro. Quantitative real-time PCR was used to measure the expression of circ_0091702, inflammatory cytokines, microRNA (miR)-545-3p and thrombospondin 2 (THBS2). Cell counting kit 8 assay and flow cytometry were used to assess cell viability and apoptosis. Besides, the protein levels of apoptosis markers and THBS2 were evaluated by western blot analysis. In addition, the concentrations of inflammatory cytokines were detected by enzyme-linked immunosorbent assay (ELISA). Cell oxidative stress was determined by detecting the contents of oxidative stress markers. Dual-luciferase reporter assay and RIP assay were used to confirm the relationship between miR-545-3p and circ_0091702 or miR-545-3p and THBS2. Circ_0091702 was downregulated in septic AKI patients and LPS-induced HK2 cells. Circ_0091702 could attenuate LPS-induced HK2 cell injury, while its silencing had an opposite effect. In the terms of mechanism, circ_0091702 could act as a sponge of miR-545-3p, and miR-545-3p could directly target THBS2. Functional experiments revealed that miR-545-3p could reverse the alleviating effect of circ_0091702 on LPS-induced HK2 cell injury, and THBS2 knockdown also could overturn the suppressing effect of miR-545-3p inhibitor on LPS-induced HK2 cell injury. Additionally, we also suggested that circ_0091702 could sponge miR-545-3p to regulate THBS2 expression. In conclusion, our results showed that circ_0091702 could suppress LPS-induced HK2 cell injury via the miR-545-3p/THBS2 axis, indicating that circ_0091702 might be an important biomarker for relieving sepsis-related AKI.
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SGLT2 inhibitor empagliflozin monotherapy alleviates renal oxidative stress in albino Wistar diabetic rats after myocardial infarction induction. Biomed Pharmacother 2021; 139:111624. [PMID: 33915503 DOI: 10.1016/j.biopha.2021.111624] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/06/2021] [Accepted: 04/12/2021] [Indexed: 02/07/2023] Open
Abstract
Acute kidney injury (AKI) is a sudden insult of the kidney that happens within a short period of time, which is associated with poor prognosis in diabetic patients with myocardial infarction (MI). Subclinical AKI is a condition in which tubular damage biomarkers [Neutrophil gelatinase-associated lipocalin (NGAL) and kidney injury molecule-1(KIM-1)] are positive even in the absence of elevated serum creatinine. Recent studies reported that SGLT-2 inhibitors could protect against subclinical AKI in diabetic patients by elevating the level of β-Hydroxybutyric acid (βOHB). This study aims to examine the reno-protective potential of empagliflozin (EMPA) against MI associated AKI in diabetic rats. Eighty Albino Wistar rats were divided into: (1) nondiabetic sham group (CS), (2) nondiabetic + myocardial infarction group (CM), (3) diabetic + myocardial infarction group (DM) and (4) diabetic + myocardial infarction + empagliflozin group (DME). At the end of the experiment, blood samples and kidneys were collected for biochemical analysis, histopathological, and immunohistochemical studies. After induction of myocardial infarction, there was a significant decrease in serum creatinine and NGAL levels in DME. After EMPA administration, mesangial matrix index and glomerular area were lowered in DME if compared to DM group. As a marker for tubular injury, we used anti-NGAL and anti-KIM-1 immunohistochemistry. Strong positive reaction was noticed in DM group if compared to DME group which showed weak positive reaction. Levels of renal mRNAs [NGAL; KIM-1; Nox-2,4; TLR-2,4; MyD88; TNF- α and IL-1 β, 18] in DME group were reduced significantly compared to DM group. In conclusion, empagliflozin can protect against subclinical acute kidney injury in diabetic albino Wistar rats after myocardial infarction induction, which could improve the clinical outcome of SGLT-2 inhibitors in diabetic patients.
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Cui Y, Gao H, Han S, Yuan R, He J, Zhuo Y, Feng YL, Tang M, Feng J, Yang S. Oleuropein Attenuates Lipopolysaccharide-Induced Acute Kidney Injury In Vitro and In Vivo by Regulating Toll-Like Receptor 4 Dimerization. Front Pharmacol 2021; 12:617314. [PMID: 33841147 PMCID: PMC8024564 DOI: 10.3389/fphar.2021.617314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 02/15/2021] [Indexed: 12/11/2022] Open
Abstract
Acute kidney injury (AKI) is a common critical illness that involves multiple systems and multiple organs with a rapid decline in kidney function over short period. It has a high mortality rate and presents a great treatment challenge for physicians. Oleuropein, the main active constituent of Ilex pubescens Hook. et Arn. var. kwangsiensis Hand.-Mazz. displays significant anti-inflammatory activity, although oleuropein’s therapeutic effect and mechanism of action in AKI remain to be elucidated. The present study aimed to further clarify the mechanism by which oleuropein exerts effects on inflammation in vitro and in vivo. In vitro, the inflammatory effect and mechanism were investigated through ELISA, Western blotting, the thermal shift assay, co-immunoprecipitation, and immunofluorescence staining. Lipopolysaccharide (LPS) induced acute kidney injury was employed in an animal model to investigate oleuropein’s therapeutic effect on AKI and mechanism in vivo. The underlying mechanisms were investigated by Western blot analysis of kidney tissue. In LPS-stimulated macrophages, our data demonstrated that oleuropein significantly reduced the expression of inflammatory mediators like NO, IL-6, TNF-α, iNOS, and COX-2. Moreover, oleuropein inhibited NF-κB/p65 translocation, and had a negative regulatory effect on key proteins in the NF-κB and MAPK pathways. In addition, the thermal shift and co-immunoprecipitation assays revealed that oleuropein played an essential role in binding to the active sites of TLR4, as well as inhibiting TLR4 dimerization and suppressing the binding of TLR4 to MyD88. Oleuropein markedly alleviated LPS induced acute kidney injury, decreased serum creatinine and blood urea nitrogen (BUN) levels and proinflammatory cytokines. More importantly, the TLR4-MyD88-NF-κB/MAPK pathways were confirmed to play an important role in the oleuropein treatment of AKI. In this study, oleuropein exhibited excellent anti-inflammatory effects by regulating TLR4-MyD88-NF-κB/MAPK axis in vitro and in vivo, suggesting oleuropein as a candidate molecule for treating AKI.
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Affiliation(s)
- Yushun Cui
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China.,College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Hongwei Gao
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, China
| | - Shan Han
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, China
| | - Renyikun Yuan
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China.,State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, Nanchang, China
| | - Jia He
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, China
| | - Youqiong Zhuo
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, China
| | - Yu-Lin Feng
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China.,State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, Nanchang, China
| | - Meiwen Tang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Jianfang Feng
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, China
| | - Shilin Yang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China.,College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
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Ludes PO, de Roquetaillade C, Chousterman BG, Pottecher J, Mebazaa A. Role of Damage-Associated Molecular Patterns in Septic Acute Kidney Injury, From Injury to Recovery. Front Immunol 2021; 12:606622. [PMID: 33732235 PMCID: PMC7957065 DOI: 10.3389/fimmu.2021.606622] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 02/02/2021] [Indexed: 12/12/2022] Open
Abstract
Damage-associated molecular patterns (DAMPs) are a group of immunostimulatory molecules, which take part in inflammatory response after tissue injury. Kidney-specific DAMPs include Tamm-Horsfall glycoprotein, crystals, and uromodulin, released by tubular damage for example. Non-kidney-specific DAMPs include intracellular particles such as nucleus [histones, high-mobility group box 1 protein (HMGB1)] and cytosol parts. DAMPs trigger innate immunity by activating the NRLP3 inflammasome, G-protein coupled class receptors or the Toll-like receptor. Tubular necrosis leads to acute kidney injury (AKI) in either septic, ischemic or toxic conditions. Tubular necrosis releases DAMPs such as histones and HMGB1 and increases vascular permeability, which perpetuates shock and hypoperfusion via Toll Like Receptors. In acute tubular necrosis, intracellular abundance of NADPH may explain a chain reaction where necrosis spreads from cell to cell. The nature AKI in intensive care units does not have preclinical models that meet a variation of blood perfusion or a variation of glomerular filtration within hours before catecholamine infusion. However, the dampening of several DAMPs in AKI could provide organ protection. Research should be focused on the numerous pathophysiological pathways to identify the relative contribution to renal dysfunction. The therapeutic perspectives could be strategies to suppress side effect of DAMPs and to promote renal function regeneration.
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Affiliation(s)
- Pierre-Olivier Ludes
- Department of Anesthesiology and Intensive Care, Hautepierre Hospital, Strasbourg University Hospital, Strasbourg, France.,EA 3072, Mitochondrie Stress Oxydant et Protection Musculaire, Faculté de Médecine, FRU 6702, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Charles de Roquetaillade
- Department of Anesthesiology and Critical Care, Hôpital Lariboisière, DMU Parabol, APHP.Nord, Paris, France.,Inserm U942 MASCOT, Université de Paris, Paris, France
| | - Benjamin Glenn Chousterman
- Department of Anesthesiology and Critical Care, Hôpital Lariboisière, DMU Parabol, APHP.Nord, Paris, France.,Inserm U942 MASCOT, Université de Paris, Paris, France
| | - Julien Pottecher
- Department of Anesthesiology and Intensive Care, Hautepierre Hospital, Strasbourg University Hospital, Strasbourg, France.,EA 3072, Mitochondrie Stress Oxydant et Protection Musculaire, Faculté de Médecine, FRU 6702, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Alexandre Mebazaa
- Department of Anesthesiology and Critical Care, Hôpital Lariboisière, DMU Parabol, APHP.Nord, Paris, France.,Inserm U942 MASCOT, Université de Paris, Paris, France
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Li H, Sun A, Meng T, Zhu Y. Expression and role of ABIN1 in sepsis: In vitro and in vivo studies. Open Med (Wars) 2020; 16:33-40. [PMID: 33364432 PMCID: PMC7729633 DOI: 10.1515/med-2021-0008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 10/11/2020] [Accepted: 10/20/2020] [Indexed: 12/21/2022] Open
Abstract
In this research, we attempted to explain the effect and the related molecular mechanisms of ABIN1 in lipopolysaccharide (LPS)-induced septic mice or RAW264.7 macrophages. LPS was adopted to treat RAW264.7 macrophages for 4 h, and the levels of inflammatory factors were assessed by ELISA. Besides, ABIN1 expression was measured by quantitative reverse transcription polymerase chain reaction. Apparently, LPS enhanced immunoreaction, suggested by increased expression of IL-1β, tumor necrosis factor (TNF)-α, and IL-6. ABIN1 levels were obviously reduced compared to the control. Furthermore, we evaluated the roles of ABIN1-plasmid in immunoreaction and nuclear factor-κB (NF-κB) pathway. We found that ABIN1-plasmid significantly reduced the expression of IL-1β, TNF-α, and IL-6 in LPS-treated cells and inhibited NF-κB pathway activation. Meanwhile, a septic mouse mode was conducted to validate the role of ABIN1 in inflammatory response and organ damage in vivo. These data suggested that ABIN1-plasmid significantly inhibited the secretion of inflammatory cytokines and Cr, BUN, AST, and ALT levels in the serum of LPS-stimulated mice compared to LPS + control-plasmid group, reflecting the relieved inflammation and organ injury. In summary, the present findings indicated that ABIN1 alleviated sepsis by repressing inflammatory response through NF-κB signaling pathway, emphasizing the potential value of ABIN1 as therapeutic strategy for sepsis.
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Affiliation(s)
- Haolan Li
- Department of Infectious Diseases, Zaozhuang Municipal Hospital, Zaozhuang, 277102, China
| | - Aichen Sun
- Department of Orthopaedics, Zaozhuang Municipal Hospital, No. 47 Longtou Road, Zaozhuang, Shandong 277102, China
| | - Taocheng Meng
- Department of ICU, Zaozhuang Municipal Hospital, Zaozhuang 277102, China
| | - Yan Zhu
- Department of ICU, Zaozhuang Municipal Hospital, Zaozhuang 277102, China
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Zhuang Q, Cai H, Cao Q, Li Z, Liu S, Ming Y. Tolerogenic Dendritic Cells: The Pearl of Immunotherapy in Organ Transplantation. Front Immunol 2020; 11:552988. [PMID: 33123131 PMCID: PMC7573100 DOI: 10.3389/fimmu.2020.552988] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 08/12/2020] [Indexed: 12/19/2022] Open
Abstract
Over a half century, organ transplantation has become an effective method for the treatment of end-stage visceral diseases. Although the application of immunosuppressants (IS) minimizes the rate of allograft rejection, the common use of IS bring many adverse effects to transplant patients. Moreover, true transplant tolerance is very rare in clinical practice. Dendritic cells (DCs) are thought to be the most potent antigen-presenting cells, which makes a bridge between innate and adaptive immunity. Among their subsets, a small portion of DCs with immunoregulatory function was known as tolerogenic DC (Tol-DC). Previous reports demonstrated the ability of adoptively transferred Tol-DC to approach transplant tolerance in animal models. In this study, we summarized the properties, ex vivo generation, metabolism, and clinical attempts of Tol-DC. Tol-DC is expected to become a substitute for IS to enable patients to achieve immune tolerance in the future.
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Affiliation(s)
- Quan Zhuang
- Transplantation Center of the 3rd Xiangya Hospital, Central South University, Changsha, China.,Research Center of National Health Ministry on Transplantation Medicine, Changsha, China
| | - Haozheng Cai
- Transplantation Center of the 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Qingtai Cao
- Hunan Normal University School of Medicine, Changsha, China
| | - Zixin Li
- Hunan Normal University School of Medicine, Changsha, China
| | - Shu Liu
- Transplantation Center of the 3rd Xiangya Hospital, Central South University, Changsha, China.,Research Center of National Health Ministry on Transplantation Medicine, Changsha, China
| | - Yingzi Ming
- Transplantation Center of the 3rd Xiangya Hospital, Central South University, Changsha, China.,Research Center of National Health Ministry on Transplantation Medicine, Changsha, China
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Issara-Amphorn J, Chancharoenthana W, Visitchanakun P, Leelahavanichkul A. Syk Inhibitor Attenuates Polymicrobial Sepsis in FcgRIIb-Deficient Lupus Mouse Model, the Impact of Lupus Characteristics in Sepsis. J Innate Immun 2020; 12:461-479. [PMID: 32927460 PMCID: PMC7747092 DOI: 10.1159/000509111] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/27/2020] [Indexed: 12/14/2022] Open
Abstract
The impact of spleen tyrosine kinase (Syk) signaling might be prominent in lupus because (i) Syk is a shared downstream signaling molecule among circulating immune complex, LPS, and (1→3)-β-D-glucan (BG), and (ii) all of these factors are detectable in the serum of Fc gamma receptor IIb-deficient (FcgRIIb-/-) mice with sepsis. As a proof of concept study, we activated macrophages with BG combined with LPS (BG + LPS). We found that BG + LPS predominantly upregulated Syk expression and proinflammatory cytokines in FcgRIIb-/- macrophages compared with wild-type (WT) macrophages. Syk inhibition downregulated several inflammatory pathways in FcgRIIb-/- macrophages activated with BG + LPS, as determined by RNA sequencing analysis, suggesting the potential anti-inflammatory impact of Syk inhibitors in lupus. Indeed, administration of a Syk inhibitor prior to cecal ligation and puncture (CLP) sepsis in FcgRIIb-/- mice reduced baseline lupus-induced proinflammatory cytokines and attenuated sepsis severity as evaluated by mortality, organ injury, serum LPS, and post-sepsis serum cytokines. In conclusion, it was easier to induce Syk expression in FcgRIIb-/- macrophages than in WT macrophages. This might be because of the loss of inhibitory signaling, which might be responsible for prominent Syk abundance in the spleens of 40-week-old FcgRIIb-/- mice and the potent effect of Syk inhibitor in lupus mice compared with WT.
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Affiliation(s)
- Jiraphorn Issara-Amphorn
- Medical Microbiology, Interdisciplinary and International Program, Graduate School, Chulalongkorn University, Bangkok, Thailand
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Wiwat Chancharoenthana
- Nephrology Research Unit, Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Peerapat Visitchanakun
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Asada Leelahavanichkul
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Chulalongkorn University, Bangkok, Thailand,
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Lopes AH, Silva RL, Fonseca MD, Gomes FI, Maganin AG, Ribeiro LS, Marques LMM, Cunha FQ, Alves-Filho JC, Zamboni DS, Lopes NP, Franklin BS, Gombault A, Ramalho FS, Quesniaux VFJ, Couillin I, Ryffel B, Cunha TM. Molecular basis of carrageenan-induced cytokines production in macrophages. Cell Commun Signal 2020; 18:141. [PMID: 32894139 PMCID: PMC7487827 DOI: 10.1186/s12964-020-00621-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 07/02/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Low molecular weight carrageenan (Cg) is a seaweed-derived sulfated polysaccharide widely used as inflammatory stimulus in preclinical studies. However, the molecular mechanisms of Cg-induced inflammation are not fully elucidated. The present study aimed to investigate the molecular basis involved in Cg-induced macrophages activation and cytokines production. METHODS Primary culture of mouse peritoneal macrophages were stimulated with Kappa Cg. The supernatant and cell lysate were used for ELISA, western blotting, immunofluorescence. Cg-induced mouse colitis was also developed. RESULTS Here we show that Cg activates peritoneal macrophages to produce pro-inflammatory cytokines such as TNF and IL-1β. While Cg-induced TNF production/secretion depends on TLR4/MyD88 signaling, the production of pro-IL-1β relies on TLR4/TRIF/SYK/reactive oxygen species (ROS) signaling pathway. The maturation of pro-IL1β into IL-1β is dependent on canonical NLRP3 inflammasome activation via Pannexin-1/P2X7/K+ efflux signaling. In vivo, Cg-induced colitis was reduced in mice in the absence of NLRP3 inflammasome components. CONCLUSIONS In conclusion, we unravel a critical role of the NLRP3 inflammasome in Cg-induced pro-inflammatory cytokines production and colitis, which is an important discovery on the pro-inflammatory properties of this sulfated polysaccharide for pre-clinical studies. Video abstract Carrageenan (Cg) is one the most used flogistic stimulus in preclinical studies. Nevertheless, the molecular basis of Cg-induced inflammation is not totally elucidated. Herein, Lopes et al. unraveled the molecular basis for Cg-induced macrophages production of biological active IL-1β. The Cg-stimulated macrophages produces pro-IL-1β depends on TLR4/TRIF/Syk/ROS, whereas its processing into mature IL-1β is dependent on the canonical NLRP3 inflammasome.
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Affiliation(s)
- Alexandre H. Lopes
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Center for Research in Inflammatory Diseases (CRID)Av. Bandeirantes 3900, 14049-900, Ribeirão Preto, SP Brazil
| | - Rangel L. Silva
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Center for Research in Inflammatory Diseases (CRID)Av. Bandeirantes 3900, 14049-900, Ribeirão Preto, SP Brazil
| | - Miriam D. Fonseca
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Center for Research in Inflammatory Diseases (CRID)Av. Bandeirantes 3900, 14049-900, Ribeirão Preto, SP Brazil
| | - Francisco I. Gomes
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Center for Research in Inflammatory Diseases (CRID)Av. Bandeirantes 3900, 14049-900, Ribeirão Preto, SP Brazil
| | - Alexandre G. Maganin
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Center for Research in Inflammatory Diseases (CRID)Av. Bandeirantes 3900, 14049-900, Ribeirão Preto, SP Brazil
| | - Lucas S. Ribeiro
- Institute of Innate Immunity, University Hospitals, University of Bonn, 53127 Bonn, Germany
| | | | - Fernando Q. Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Center for Research in Inflammatory Diseases (CRID)Av. Bandeirantes 3900, 14049-900, Ribeirão Preto, SP Brazil
| | - Jose C. Alves-Filho
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Center for Research in Inflammatory Diseases (CRID)Av. Bandeirantes 3900, 14049-900, Ribeirão Preto, SP Brazil
| | - Dario S. Zamboni
- Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Norberto P. Lopes
- Department of Physics and Chemistry, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Bernardo S. Franklin
- Institute of Innate Immunity, University Hospitals, University of Bonn, 53127 Bonn, Germany
| | - Aurélie Gombault
- University of Orleans and CNRS, UMR7355 Experimental and Molecular Immunology, Orleans, France
| | - Fernando Silva Ramalho
- Department of Pathology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Valerie F. J. Quesniaux
- University of Orleans and CNRS, UMR7355 Experimental and Molecular Immunology, Orleans, France
| | - Isabelle Couillin
- University of Orleans and CNRS, UMR7355 Experimental and Molecular Immunology, Orleans, France
| | - Bernhard Ryffel
- University of Orleans and CNRS, UMR7355 Experimental and Molecular Immunology, Orleans, France
| | - Thiago M. Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Center for Research in Inflammatory Diseases (CRID)Av. Bandeirantes 3900, 14049-900, Ribeirão Preto, SP Brazil
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Recombinant human ulinastatin improves immune dysfunction of dendritic cells in septic mice by inhibiting endoplasmic reticulum stress-related apoptosis. Int Immunopharmacol 2020; 85:106643. [DOI: 10.1016/j.intimp.2020.106643] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/10/2020] [Accepted: 05/22/2020] [Indexed: 12/12/2022]
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Uni R, Inoue T, Nakamura Y, Fukaya D, Hasegawa S, Wu CH, Fujii R, Surattichaiyakul B, Peerapanyasut W, Ozeki A, Akimitsu N, Wada Y, Nangaku M, Inagi R. Vagus nerve stimulation even after injury ameliorates cisplatin-induced nephropathy via reducing macrophage infiltration. Sci Rep 2020; 10:9472. [PMID: 32528023 PMCID: PMC7290038 DOI: 10.1038/s41598-020-66295-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/15/2020] [Indexed: 01/25/2023] Open
Abstract
The efficacy of prior activation of an anti-inflammatory pathway called the cholinergic anti-inflammatory pathway (CAP) through vagus nerve stimulation (VNS) has been reported in renal ischemia-reperfusion injury models. However, there have been no reports that have demonstrated the effectiveness of VNS after injury. We investigated the renoprotective effect of VNS in a cisplatin-induced nephropathy model. C57BL/6 mice were injected with cisplatin, and VNS was conducted 24 hours later. Kidney function, histology, and a kidney injury marker (Kim-1) were evaluated 72 hours after cisplatin administration. To further explore the role of the spleen and splenic macrophages, key players in the CAP, splenectomy, and adoptive transfer of macrophages treated with the selective α7 nicotinic acetylcholine receptor agonist GTS-21 were conducted. VNS treatment significantly suppressed cisplatin-induced kidney injury. This effect was abolished by splenectomy, while adoptive transfer of GTS-21-treated macrophages improved renal outcomes. VNS also reduced the expression of cytokines and chemokines, including CCL2, which is a potent chemokine attracting monocytes/macrophages, accompanied by a decline in the number of infiltrating macrophages. Taken together, stimulation of the CAP protected the kidney even after injury in a cisplatin-induced nephropathy model. Considering the feasibility and anti-inflammatory effects of VNS, the findings suggest that VNS may be a promising therapeutic tool for acute kidney injury.
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Affiliation(s)
- Rie Uni
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan.,Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tsuyoshi Inoue
- Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Yasuna Nakamura
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Daichi Fukaya
- Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Sho Hasegawa
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan.,Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Chia-Hsien Wu
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Rie Fujii
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan.,Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Bongkod Surattichaiyakul
- Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | | | - Atsuko Ozeki
- Isotope Science Center, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Nobuyoshi Akimitsu
- Isotope Science Center, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Youichiro Wada
- Isotope Science Center, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Reiko Inagi
- Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
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Su X, Sun ZH, Ren Q, Liu JR, Yin L, Liang N, Meng L, Sun RX. The effect of spleen tyrosine kinase inhibitor R406 on diabetic retinopathy in experimental diabetic rats. Int Ophthalmol 2020; 40:2371-2383. [PMID: 32462561 DOI: 10.1007/s10792-020-01422-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/11/2020] [Indexed: 12/11/2022]
Abstract
PURPOSE To investigate the effect of spleen tyrosine kinase (Syk) inhibitor R406 on diabetic retinopathy (DR) in diabetic mellitus (DM) rats. METHODS Rats were randomized into Normal, DM, DM + 5 mg/kg R406 and DM + 10 mg/kg R406 groups. DM rats were established via injection of streptozotocin (STZ). One week after model establishment, rats in treatment groups received 5 mg/kg or 10 mg/kg R406 by gavage administration for 12 weeks consecutively, followed by the detection with hematoxylin-eosin (HE) staining, Evans blue angiography, retinal trypsin digestion assay, Western blotting, immunohistochemistry, TUNEL assay, immunofluorescence assay and quantitative reverse transcriptase real-time polymerase chain reaction (qRT-PCR). RESULTS The retina of DM rats presented different degree of edema, disordered and loose structure, swollen cells with enlarged intercellular space, and dilated and congested capillaries. Besides, the retinal vessels of DM rats showed high fluorescence leakage. However, R406 alleviated the above-mentioned conditions, which was much better with high concentration of R406 (10 mg/kg). R406 also reversed the down-regulations of occludin, claudin-5, ZO-1 and the up-regulation of and VEGF in retinal tissues of DM rats; inhibited retinal cell apoptosis; strengthened retinal cell proliferation; and reduced expressions of IL-1β, IL-6, TNF-α and nuclear p65 NF-κB in retinal tissues. The improvement in all these indexes was much more significant in rats of DM + 10 mg/kg R406 group than in rats of DM + 5 mg/kg R406 group. CONCLUSION Syk inhibitor R406 could attenuate retinal inflammation in DR rats via the repression of NF-κB activation.
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Affiliation(s)
- Xian Su
- Department of Ophthalmology, The First Hospital of Shijiazhuang City, No. 12, Pingan North Street, Shijiazhuang, 050000, Hebei Province, China
| | - Zhao-Hui Sun
- Department of Ophthalmology, The First Hospital of Shijiazhuang City, No. 12, Pingan North Street, Shijiazhuang, 050000, Hebei Province, China
| | - Qian Ren
- Department of Ophthalmology, The First Hospital of Shijiazhuang City, No. 12, Pingan North Street, Shijiazhuang, 050000, Hebei Province, China
| | - Jun-Ru Liu
- Department of Ophthalmology, The Third Hospital of Shijiazhuang City, Shijiazhuang, 050011, Hebei Province, China
| | - Li Yin
- Department of Ophthalmology, The First Hospital of Shijiazhuang City, No. 12, Pingan North Street, Shijiazhuang, 050000, Hebei Province, China
| | - Na Liang
- Department of Ophthalmology, The First Hospital of Shijiazhuang City, No. 12, Pingan North Street, Shijiazhuang, 050000, Hebei Province, China
| | - Ling Meng
- Department of Ophthalmology, The First Hospital of Shijiazhuang City, No. 12, Pingan North Street, Shijiazhuang, 050000, Hebei Province, China
| | - Rui-Xue Sun
- Department of Ophthalmology, The First Hospital of Shijiazhuang City, No. 12, Pingan North Street, Shijiazhuang, 050000, Hebei Province, China.
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CXCL14 Overexpression Attenuates Sepsis-Associated Acute Kidney Injury by Inhibiting Proinflammatory Cytokine Production. Mediators Inflamm 2020; 2020:2431705. [PMID: 32317861 PMCID: PMC7150711 DOI: 10.1155/2020/2431705] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 01/22/2020] [Accepted: 03/13/2020] [Indexed: 12/20/2022] Open
Abstract
CXCL14 is a relatively novel chemokine with a wide spectrum of biological activities. The present study was designed to investigate whether CXCL14 overexpression attenuates sepsis-associated acute kidney injury (AKI) in mice. Sepsis model has been established by cecal ligation and puncture (CLP). CLP induced AKI in mice as assessed by increased renal neutrophil gelatinase-associated lipocalin (NGAL) expression and serum creatinine levels. We found that renal CXCL14 expression in the kidney was significantly decreased at 12 hours after CLP. Correlation analysis demonstrated a negative association between renal CXCL14 expression and AKI markers including serum creatinine and renal NGAL. Moreover, CXCL14 overexpression reduced cytokine (TNF-α, IL-6, and IL-1β) production and NGAL expression in the kidney and decreased serum creatinine levels. In vivo and in vitro experiments found that CXCL14 overexpression inhibited M1 macrophage polarization but increased M2 polarization. Together, these results suggest that CXCL14 overexpression attenuates sepsis-associated AKI probably through the downregulation of macrophages-derived cytokine production. However, further studies are required to elucidate the underlying mechanism.
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47
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Zeng M, Qi M, Wang Y, Xu R, Wu Y, Li M, Zheng X, Feng W. 5-O-methyldihydroquercetin and cilicicone B isolated from Spina Gleditsiae ameliorate lipopolysaccharide‐induced acute kidney injury in mice by inhibiting inflammation and oxidative stress via the TLR4/MyD88/TRIF/NLRP3 signaling pathway. Int Immunopharmacol 2020; 80:106194. [DOI: 10.1016/j.intimp.2020.106194] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/04/2020] [Accepted: 01/04/2020] [Indexed: 12/16/2022]
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48
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Oxidative Stress in the Pathophysiology of Kidney Disease: Implications for Noninvasive Monitoring and Identification of Biomarkers. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5478708. [PMID: 32082479 PMCID: PMC7007944 DOI: 10.1155/2020/5478708] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 10/30/2019] [Accepted: 11/18/2019] [Indexed: 12/17/2022]
Abstract
Kidney disease represents a serious global health problem. One of the main concerns is its late diagnosis, only feasible in a progressed disease state. The lack of a clinical manifestation in the early stages and the fact that the commonly measured parameters of renal function are markedly reduced only during advanced stages of the disease are the main cause. Changes at the molecular level of the kidney tissue occur even before nitrogenous substances, such as creatinine and urea, start to accumulate in the blood. Renal proximal tubules contain a large number of mitochondria and are critical for the energy-demanding process of reabsorption of water and solutes. Mitochondria are the largest producers of oxygen radicals, which, in turn, increase the susceptibility of kidneys to oxidative stress-induced damage. Free radicals and prooxidants produced during acute or chronic kidney injury may further aggravate the course of the disease and play a role in the pathogenesis of subsequent complications. Prevention might be the solution in CKD, but patients are often reluctant to undergo preventive examinations. Noninvasive markers and the possibility to obtain samples at home might help to increase compliance. This review will provide an overview of the possible uses of markers of oxidative status in noninvasive biofluids in patients with renal disease.
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