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Peng X, Ni H, Kuang B, Wang Z, Hou S, Gu S, Gong N. Sirtuin 3 in renal diseases and aging: From mechanisms to potential therapies. Pharmacol Res 2024; 206:107261. [PMID: 38917912 DOI: 10.1016/j.phrs.2024.107261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 06/02/2024] [Accepted: 06/10/2024] [Indexed: 06/27/2024]
Abstract
The longevity protein sirtuins (SIRTs) belong to a family of nicotinamide adenine dinucleotide (NAD+)-dependent deacetylases. In mammals, SIRTs comprise seven members (SIRT1-7) which are localized to different subcellular compartments. As the most prominent mitochondrial deacetylases, SIRT3 is known to be regulated by various mechanisms and participate in virtually all aspects of mitochondrial homeostasis and metabolism, exerting significant impact on multiple organs. Notably, the kidneys possess an abundance of mitochondria that provide substantial energy for filtration and reabsorption. A growing body of evidence now supports the involvement of SIRT3 in several renal diseases, including acute kidney injury, chronic kidney disease, and diabetic nephropathy; notably, these diseases are all associated with aging. In this review, we summarize the emerging role of SIRT3 in renal diseases and aging, and highlights the intricate mechanisms by which SIRT3 exerts its effects. In addition, we highlight the potential therapeutic significance of modulating SIRT3 and provide valuable insights into the therapeutic role of SIRT3 in renal diseases to facilitate clinical application.
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Affiliation(s)
- Xuan Peng
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Haiqiang Ni
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Baicheng Kuang
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Zhiheng Wang
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Shuaiheng Hou
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Shiqi Gu
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Nianqiao Gong
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China.
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Torrico S, Hotter G, Muñoz Á, Calle P, García M, Poch E, Játiva S. PBMC therapy reduces cell death and tissue fibrosis after acute kidney injury by modulating the pattern of monocyte/macrophage survival in tissue. Biomed Pharmacother 2024; 178:117186. [PMID: 39067165 DOI: 10.1016/j.biopha.2024.117186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 07/16/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024] Open
Abstract
In this study, we investigated if the therapeutic potential of peripheral blood mononuclear cell (PBMC) therapy in a murine model of ischemic AKI is related with the survival pattern of monocyte/macrophages in tissue. CD-1 mice were subjected to bilateral renal ischemia followed by reperfusion to induce AKI. M2-polarized PBMCs isolated from CD-1 mice were administered intravenously at different time points post-injury. Our results demonstrate that early administration of PBMC therapy attenuates renal tissue damage, reduces tissue cell death and prevents fibrosis development. Reduction of tissue pyroptosis was observed by reduction on NLRP3 inflammasome activation and decreasing IL-1beta and Caspase-1 expression in the kidney. Furthermore, the therapy was shown to mitigate ferroptosis by inducing GPX4 overexpression. Early administration of PBMCs increased the survival pattern of renal tissue-macrophages, promoting a "pro-survival phenotype" resulting in decreased pyroptotic marker NLRP3, IL-1beta and Caspase 1 and increased anti-ferroptotic gene GPX4. Conversely, delayed administration of PBMC therapy exhibits diminished efficacy in preventing cell death and fibrosis in tissue and provoked a decrease in the pro-survival phenotype of both monocyte /macrophages in tissue. Our findings highlight the therapeutic potential of PBMC therapy in mitigating AKI and preventing CKD progression by modulating tissue-resident macrophage survival and reducing their cell death pathways. The fact that the effectiveness of the therapy depends on the time of administration after the injury underscores the importance of early intervention in AKI management.
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Affiliation(s)
- Selene Torrico
- Department of Experimental Pathology, Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d' Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona 08036, Spain; M2rlab-XCELL, Madrid 28010, Spain; Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Georgina Hotter
- Department of Experimental Pathology, Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d' Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona 08036, Spain; CIBER-BBN, Networking Center on Bioengineering, Biomaterials and Nanomedicine, Zaragoza 50018, Spain
| | - Ángeles Muñoz
- Department of Experimental Pathology, Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d' Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona 08036, Spain
| | - Priscila Calle
- Department of Experimental Pathology, Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d' Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona 08036, Spain; M2rlab-XCELL, Madrid 28010, Spain
| | - Miriam García
- Department of Experimental Pathology, Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d' Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona 08036, Spain; M2rlab-XCELL, Madrid 28010, Spain
| | - Esteban Poch
- Nefrologia i Trasplantament Renal, Hospital Clínic, IDIBAPS, Universidad de Barcelona, Barcelona 08036, Spain
| | - Soraya Játiva
- Department of Experimental Pathology, Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d' Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona 08036, Spain; M2rlab-XCELL, Madrid 28010, Spain.
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Zhu T, Yao Y, Ding J, Zhang C, Xia N, Tao Y, Zhang W, Qi H, Gong L, Jiang P. 3-Methyladenine attenuates neuroinflammation and improves cognitive function in sepsis-associated encephalopathy by inhibiting autophagy. Int Immunopharmacol 2024; 139:112744. [PMID: 39059098 DOI: 10.1016/j.intimp.2024.112744] [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: 03/31/2024] [Revised: 07/01/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024]
Abstract
OBJECTIVE Sepsis-associated encephalopathy (SAE) can lead to severe cerebral dysfunction as well as cognitive dysfunction, resulting in a significant disease burden. 3-Methyladenine (3-MA) has been confirmed to have anti-inflammatory effects on diseases characterized by enhanced autophagy. However, its role in SAE has not been clarified. METHODS An SAE mouse model was generated by intraperitoneal injection of lipopolysaccharide (LPS). Mice were given 5, 20, or 80 mg/kg 3-MA to determine the therapeutic dose. The mice in the different groups were given 20 mg/kg 3-MA or saline, and survival, body temperature, body weight and neurobehavioral scores were measured at different time points. The expression of autophagy-related proteins and inflammatory factors was detected by Western blotting, enzyme linked immunosorbent assay (ELISA) and real-time quantitative polymerase chain reaction (RT-qPCR) 12 h after LPS induction. Glial activation and neuronal injury in the hippocampus were detected by immunofluorescence staining and HE staining. The open Field test, novel object recognition (NOR) test, Y-maze test, and Morris water maze (MWM) test were performed to assess cognitive function. RESULTS Treatment with 20 or 80 mg/kg 3-MA reduced the increase in hippocampal TNF-α, IL-6, and IL-1β expression in SAE model mice, with 20 mg/kg 3-MA having the greatest therapeutic effect. Treatment with 20 mg/kg 3-MA effectively reduced the expression of hippocampal autophagy-related proteins and mortality, ameliorated hypothermia, decreased body weight and electroencephalography (EEG) performance, and attenuated the activation of neuroglia and neuronal damage. Moreover, it alleviated the cognitive dysfunction 2 weeks after LPS induction. CONCLUSIONS 3-MA reduced neuroglial activation and neuronal damage, attenuated neuroinflammation, and improved cognitive deficits during recovery period by inhibiting autophagy in SAE.
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Affiliation(s)
- Tao Zhu
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 310020, China
| | - Yinping Yao
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province 310052, China; Department of Pediatrics, Shaoxing People's Hospital, Shaoxing, Zhejiang Province 312300, China
| | - Junchao Ding
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province 310052, China; Department of Pediatrics, Yiwu Maternal and Child Health Care Hospital, Yiwu, Zhejiang Province 322000, China
| | - Chengyue Zhang
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province 310052, China
| | - Ningxiao Xia
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province 310052, China
| | - Yilin Tao
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province 310052, China
| | - Wenhao Zhang
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province 310052, China
| | - Hantao Qi
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province 310052, China
| | - Lifen Gong
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province 310052, China.
| | - Peifang Jiang
- Department of Neurology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province 310052, China.
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Liu C, Wei W, Huang Y, Fu P, Zhang L, Zhao Y. Metabolic reprogramming in septic acute kidney injury: pathogenesis and therapeutic implications. Metabolism 2024; 158:155974. [PMID: 38996912 DOI: 10.1016/j.metabol.2024.155974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 07/06/2024] [Accepted: 07/09/2024] [Indexed: 07/14/2024]
Abstract
Acute kidney injury (AKI) is a frequent and severe complication of sepsis and is characterized by significant mortality and morbidity. However, the pathogenesis of septic acute kidney injury (S-AKI) remains elusive. Metabolic reprogramming, which was originally referred to as the Warburg effect in cancer, is strongly related to S-AKI. At the onset of sepsis, both inflammatory cells and renal parenchymal cells, such as macrophages, neutrophils and renal tubular epithelial cells, undergo metabolic shifts toward aerobic glycolysis to amplify proinflammatory responses and fortify cellular resilience to septic stimuli. As the disease progresses, these cells revert to oxidative phosphorylation, thus promoting anti-inflammatory reactions and enhancing functional restoration. Alterations in mitochondrial dynamics and metabolic reprogramming are central to the energetic changes that occur during S-AKI. In this review, we summarize the current understanding of the pathogenesis of metabolic reprogramming in S-AKI, with a focus on each cell type involved. By identifying relevant key regulatory factors, we also explored potential metabolic reprogramming-related therapeutic targets for the management of S-AKI.
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Affiliation(s)
- Caihong Liu
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Wei Wei
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yongxiu Huang
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Ping Fu
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Ling Zhang
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yuliang Zhao
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China.
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Liu S, Yang T, Jiang Q, Zhang L, Shi X, Liu X, Li X. Lactate and Lactylation in Sepsis: A Comprehensive Review. J Inflamm Res 2024; 17:4405-4417. [PMID: 39006496 PMCID: PMC11244620 DOI: 10.2147/jir.s459185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 05/02/2024] [Indexed: 07/16/2024] Open
Abstract
Sepsis is a disorder of the immune response to infection or infectious factors with high morbidity and mortality in clinical settings. The lactylation of lysine residues, fueled by lactate, plays a pivotal role in its pathophysiology. In conducting a literature review on sepsis-related research, we employed a systematic approach to ensure comprehensiveness and accuracy. Initially, we conducted an extensive literature search through the PubMed database, utilizing a range of keywords including "sepsis", "lactate", "lactylation", and "epigenetic modification". The aim was to capture the most recent research related to the pathophysiological mechanisms of sepsis, metabolic disorders, and the role of lactylation. The results of the literature review revealed a close link between sepsis and metabolic dysfunction, particularly the pivotal role of lactylation in regulating immune responses and inflammatory processes. Lactate, not only an energy metabolic byproduct produced during glycolysis, affects the activity of various proteins, including those involved in immune regulation and cell signaling, through lactylation. In the context of sepsis, changes in the levels of lactylation may be closely associated with the severity and prognosis of the disease. In summary, lactylation, as an emerging type of epigenetic modification, provides a new perspective for the diagnosis and treatment of sepsis. Future research needs to further elucidate the exact mechanisms of lactylation in sepsis and explore its potential as a therapeutic target.
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Affiliation(s)
- Sijia Liu
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Ting Yang
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Qingsong Jiang
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Liang Zhang
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Xinhui Shi
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
| | - Xin Liu
- Medical Research Center, Southwest Hospital, Third Military Medical University, Chongqing, People’s Republic of China
| | - Xiaoli Li
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, People’s Republic of China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing, People’s Republic of China
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Xi S, Chen W, Ke Y. Advances in SIRT3 involvement in regulating autophagy-related mechanisms. Cell Div 2024; 19:20. [PMID: 38867228 PMCID: PMC11170824 DOI: 10.1186/s13008-024-00124-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 06/06/2024] [Indexed: 06/14/2024] Open
Abstract
The silencing regulatory factor 2-like protein 3 (SIRT3) is a nicotinamide adenine dinucleotide (NAD+) dependent deacetylase located primarily in the mitochondria. This protein plays an important role in oxidative stress, energy metabolism, and autophagy in multicellular organisms. Autophagy (macroautophagy) is primarily a cytoprotective mechanism necessary for intracellular homeostasis and the synthesis, degradation, and recycling of cellular products. Autophagy can influence the progression of several neural, cardiac, hepatic, and renal diseases and can also contribute to the development of fibrosis, diabetes, and many types of cancer. Recent studies have shown that SIRT3 has an important role in regulating autophagy. Therefore in this study, we aimed to perform a literature review to summarize the role of SIRT3 in the regulation of cellular autophagy. The findings of this study could be used to identify new drug targets for SIRT3-related diseases. Methods: A comprehensive literature review of the mechanism involved behind SIRT3 and autophagy-related diseases was performed. Relevant literature published in Pubmed and Web of Science up to July 2023 was identified using the keywords "silencing regulatory factor 2-like protein 3", "SIRT3" and "autophagy".
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Affiliation(s)
- Shuangyun Xi
- Center of Forensic Expertise, Affiliated hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
- School of Forensic Medicine, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Weijun Chen
- Center of Forensic Expertise, Affiliated hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
- School of Forensic Medicine, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Yong Ke
- Center of Forensic Expertise, Affiliated hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.
- School of Forensic Medicine, Zunyi Medical University, Zunyi, 563000, Guizhou, China.
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Katerelos M, Gleich K, Harley G, Loh K, Oakhill JS, Kemp BE, de Souza DP, Narayana VK, Coughlan MT, Laskowski A, Ling NXY, Murray-Segal L, Brink R, Lee M, Power DA, Mount PF. The AMPK activator ATX-304 alters cellular metabolism to protect against cisplatin-induced acute kidney injury. Biomed Pharmacother 2024; 175:116730. [PMID: 38749175 DOI: 10.1016/j.biopha.2024.116730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 06/03/2024] Open
Abstract
Acute kidney injury (AKI) disrupts energy metabolism. Targeting metabolism through AMP-activated protein kinase (AMPK) may alleviate AKI. ATX-304, a pan-AMPK activator, was evaluated in C57Bl/6 mice and tubular epithelial cell (TEC) cultures. Mice received ATX-304 (1 mg/g) or control chow for 7 days before cisplatin-induced AKI (CI-AKI). Primary cultures of tubular epithelial cells (TECs) were pre-treated with ATX-304 (20 µM, 4 h) prior to exposure to cisplatin (20 µM, 23 h). ATX-304 increased acetyl-CoA carboxylase phosphorylation, indicating AMPK activation. It protected against CI-AKI measured by serum creatinine (control 0.05 + 0.03 mM vs ATX-304 0.02 + 0.01 mM, P = 0.03), western blot for neutrophil gelatinase-associated lipocalin (NGAL) (control 3.3 + 1.8-fold vs ATX-304 1.2 + 0.55-fold, P = 0.002), and histological injury (control 3.5 + 0.59 vs ATX-304 2.7 + 0.74, P = 0.03). In TECs, pre-treatment with ATX-304 protected against cisplatin-mediated injury, as measured by lactate dehydrogenase release, MTS cell viability, and cleaved caspase 3 expression. ATX-304 protection against cisplatin was lost in AMPK-null murine embryonic fibroblasts. Metabolomic analysis in TECs revealed that ATX-304 (20 µM, 4 h) altered 66/126 metabolites, including fatty acids, tricarboxylic acid cycle metabolites, and amino acids. Metabolic studies of live cells using the XFe96 Seahorse analyzer revealed that ATX-304 increased the basal TEC oxygen consumption rate by 38%, whereas maximal respiration was unchanged. Thus, ATX-304 protects against cisplatin-mediated kidney injury via AMPK-dependent metabolic reprogramming, revealing a promising therapeutic strategy for AKI.
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Affiliation(s)
- Marina Katerelos
- Department of Nephrology, Austin Health, Heidelberg, Victoria 3084, Australia; Kidney Laboratory, The Institute for Breathing and Sleep (IBAS), Austin Health, Heidelberg, Victoria 3084, Australia
| | - Kurt Gleich
- Department of Nephrology, Austin Health, Heidelberg, Victoria 3084, Australia; Kidney Laboratory, The Institute for Breathing and Sleep (IBAS), Austin Health, Heidelberg, Victoria 3084, Australia
| | - Geoff Harley
- Department of Nephrology, Austin Health, Heidelberg, Victoria 3084, Australia; Kidney Laboratory, The Institute for Breathing and Sleep (IBAS), Austin Health, Heidelberg, Victoria 3084, Australia
| | - Kim Loh
- St. Vincent's Institute of Medical Research, Fitzroy, Victoria 3065, Australia
| | - Jonathan S Oakhill
- St. Vincent's Institute of Medical Research, Fitzroy, Victoria 3065, Australia
| | - Bruce E Kemp
- St. Vincent's Institute of Medical Research, Fitzroy, Victoria 3065, Australia
| | - David P de Souza
- Metabolomics Australia, Bio21 Institute of Molecular Science and Biotechnology, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Vinod K Narayana
- Metabolomics Australia, Bio21 Institute of Molecular Science and Biotechnology, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Melinda T Coughlan
- Glycation, Nutrition and Metabolism Laboratory, Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria 3004, Australia; Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University Parkville Campus, Parkville, Victoria 3052, Australia
| | - Adrienne Laskowski
- Glycation, Nutrition and Metabolism Laboratory, Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria 3004, Australia
| | - Naomi X Y Ling
- St. Vincent's Institute of Medical Research, Fitzroy, Victoria 3065, Australia
| | - Lisa Murray-Segal
- St. Vincent's Institute of Medical Research, Fitzroy, Victoria 3065, Australia
| | - Robert Brink
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, New South Wales 2010, Australia; St. Vincent's Clinical School, University of New South Wales, St. Vincent's Hospital, Darlinghurst, New South Wales 2010, Australia
| | - Mardiana Lee
- Department of Nephrology, Austin Health, Heidelberg, Victoria 3084, Australia; Kidney Laboratory, The Institute for Breathing and Sleep (IBAS), Austin Health, Heidelberg, Victoria 3084, Australia
| | - David A Power
- Department of Nephrology, Austin Health, Heidelberg, Victoria 3084, Australia; Kidney Laboratory, The Institute for Breathing and Sleep (IBAS), Austin Health, Heidelberg, Victoria 3084, Australia; Department of Medicine (Austin), The University of Melbourne, Heidelberg ,Victoria 3084, Australia
| | - Peter F Mount
- Department of Nephrology, Austin Health, Heidelberg, Victoria 3084, Australia; Kidney Laboratory, The Institute for Breathing and Sleep (IBAS), Austin Health, Heidelberg, Victoria 3084, Australia; Department of Medicine (Austin), The University of Melbourne, Heidelberg ,Victoria 3084, Australia.
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8
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Lu H, Chen Y, Yang Y, Ding M, Qiu F. lncRNA NORAD alleviates dysfunction of renal proximal tubular epithelial cells during the sepsis-associated acute kidney injury by modulating the miR-155-5p-PDK1 axis. ENVIRONMENTAL TOXICOLOGY 2024; 39:3304-3313. [PMID: 38433477 DOI: 10.1002/tox.24130] [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: 06/30/2023] [Revised: 12/09/2023] [Accepted: 12/25/2023] [Indexed: 03/05/2024]
Abstract
The sepsis-associated acute kidney injury (Sa-AKI) is closely related to high mortality rates worldwide. Injury to the renal proximal tubular epithelial cells (RPTECs), caused by pathological conditions, is a major cause of acute kidney injury (AKI). The lncRNA NORAD has been reported to be positively associated with kidney cancers. However, the biological roles and underlying mechanisms of NORAD in RPTECs during AKI are still unclear. In this study, we found that NORAD was significantly downregulated in RPTECs from AKI tissues. Overexpression of NORAD alleviated RPTECs injury induced by lipopolysaccharide (LPS). Additionally, glucose metabolism was significantly impaired during AKI, and LPS treatment inhibited glucose metabolism in RPTECs. We demonstrated that NORAD rescued the LPS-induced inhibition of glucose metabolism in RPTECs. Furthermore, miRNA-155-5p was significantly upregulated in RPTECs from AKI. Through bioinformatics analysis, RNA pull-down, RNA IP, and luciferase assays, we showed that NORAD directly associated with miR-155-5p to downregulate its expression. Moreover, overexpression of miR-155-5p inhibited glucose metabolism by directly targeting the 3'UTR of the glucose metabolism enzyme, pyruvate dehydrogenase kinase 1 (PDK1). Finally, rescue experiments validated that NORAD's protective effect on RPTECs injury was mediated through modulation of the miR-155-5p-PDK1-glucose metabolism pathway. In summary, these results reveal that lncRNA NORAD can alleviate RPTECs dysfunction by targeting the miR-155-5p-PDK1 axis, suggesting that NORAD has the potential to contribute to the development of therapeutic approaches against Sa-AKI.
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Affiliation(s)
- Hulin Lu
- Department of Nephrology, Huzhou first people's Hospital, Huzhou, Zhejiang, China
| | - Yan Chen
- Department of Infectious Disease, Huzhou first people's Hospital, Huzhou, Zhejiang, China
| | - Yong Yang
- Department of Nephrology, Huzhou first people's Hospital, Huzhou, Zhejiang, China
| | - Min Ding
- Department of Nephrology, Huzhou first people's Hospital, Huzhou, Zhejiang, China
| | - Fengping Qiu
- Department of Nephrology, Huzhou first people's Hospital, Huzhou, Zhejiang, China
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Meng P, Liu C, Li J, Fang P, Chen L. Protective Effect of CXCR7 Against Hypoxia/Reoxygenation Injury in Renal Tubular Epithelial Cells. Cell Biochem Biophys 2024:10.1007/s12013-024-01312-x. [PMID: 38806964 DOI: 10.1007/s12013-024-01312-x] [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] [Accepted: 05/13/2024] [Indexed: 05/30/2024]
Abstract
Acute kidney injury (AKI) is a multifactorial syndrome with complex pathophysiology and prognosis. Ischaemia‒reperfusion injury (IRI) is a major cause of induced AKI. The aim of this study was to investigate the effect of upregulated CXCR7 expression on renal tubular epithelial cell apoptosis induced by hypoxia/reoxygenation (H/R). HK-2 cells were divided into three groups: control group (pcDNA3.1), hypoxia/reoxygenation + pcDNA3.1 group (H/R+pcDNA3.1) and CXCR7 overexpression + hypoxia/reoxygenation group (H/R+ Flag-CXCR7). Protein levels of renal tubular epithelial cell injury-, apoptosis- and autophagy-related markers were assessed by qRT‒PCR, Western blotting, flow cytometry (FCM), immunofluorescence and transmission electron microscopy (TEM). In addition, HK-2 cells were treated with the autophagy inhibitor 3-MA and divided into 3 groups: control group, 3-MA + pcDNA3.1 group, and 3-MA + Flag-CXCR7 group. Changes in autophagy and apoptosis in renal tubule epithelial cells were assessed by Western blotting and FCM. Compared with those in the control group, the protein and mRNA expression levels of CXCR7 in HK-2 cells were significantly lower under H/R conditions. Under H/R conditions, CXCR7 overexpression in HK-2 cells significantly downregulated the expression of NGAL. Moreover, CXCR7 overexpression significantly decreased H/R-induced cleaved PARP-1 and cleaved Caspase 3 levels, increased the level of the antiapoptotic protein BCL-2 and the autophagy-related molecules ATG5 and LC3B II, and significantly inhibited the expression of P62. Autophagy flow and TEM also showed that CXCR7 significantly promoted autophagy. CXCR7 significantly alleviated the 3-MA-induced inhibition of autophagy and increase in apoptosis. Upregulated CXCR7 expression can inhibit renal tubular epithelial cell apoptosis and damage by regulating autophagy. In conclusion, CXCR7 is a promising target for the prevention and/or treatment of AKI.
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Affiliation(s)
- Ping Meng
- Department of Central Laboratory, Huadu District People's Hospital of Guangzhou, Guangzhou, Guangdong, 510800, China
| | - Chunli Liu
- Department of Central Laboratory, Huadu District People's Hospital of Guangzhou, Guangzhou, Guangdong, 510800, China
| | - Jingchun Li
- Department of Central Laboratory, Huadu District People's Hospital of Guangzhou, Guangzhou, Guangdong, 510800, China
| | - Ping Fang
- Department of Clinical Laboratory, Huadu District People's Hospital of Guangzhou, Guangzhou, Guangdong, 510800, China
| | - Liling Chen
- Department of Clinical Laboratory, Sanya Hospital of Traditional Chinese Medicine, Sanya, Hainan, 572000, China.
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10
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Li H, Ren Q, Shi M, Ma L, Fu P. Lactate metabolism and acute kidney injury. Chin Med J (Engl) 2024:00029330-990000000-01083. [PMID: 38802283 DOI: 10.1097/cm9.0000000000003142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Indexed: 05/29/2024] Open
Abstract
ABSTRACT Acute kidney injury (AKI) is a common clinically critical syndrome in hospitalized patients with high morbidity and mortality. At present, the mechanism of AKI has not been fully elucidated, and no therapeutic drugs exist. As known, glycolytic product lactate is a key metabolite in physiological and pathological processes. The kidney is an important gluconeogenic organ, where lactate is the primary substrate of renal gluconeogenesis in physiological conditions. During AKI, altered glycolysis and gluconeogenesis in kidneys significantly disturb the lactate metabolic balance, which exert impacts on the severity and prognosis of AKI. Additionally, lactate-derived posttranslational modification, namely lactylation, is novel to AKI as it could regulate gene transcription of metabolic enzymes involved in glycolysis or Warburg effect. Protein lactylation widely exists in human tissues and may severely affect non-histone functions. Moreover, the strategies of intervening lactate metabolic pathways are expected to bring a new dawn for the treatment of AKI. This review focused on renal lactate metabolism, especially in proximal renal tubules after AKI, and updated recent advances of lactylation modification, which may help to explore potential therapeutic targets against AKI.
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Affiliation(s)
- Hui Li
- Department of Nephrology, Kidney Research Institute, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
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11
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Tang Y, Yin L, Yuan L, Lin X, Jiang B. Nucleolin myocardial-specific knockout exacerbates glucose metabolism disorder in endotoxemia-induced myocardial injury. PeerJ 2024; 12:e17414. [PMID: 38784400 PMCID: PMC11114111 DOI: 10.7717/peerj.17414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 04/26/2024] [Indexed: 05/25/2024] Open
Abstract
Background Sepsis-induced myocardial injury, as one of the important complications of sepsis, can significantly increase the mortality of septic patients. Our previous study found that nucleolin affected mitochondrial function in energy synthesis and had a protective effect on septic cardiomyopathy in mice. During sepsis, glucose metabolism disorders aggravated myocardial injury and had a negative effect on septic patients. Objectives We investigated whether nucleolin could regulate glucose metabolism during endotoxemia-induced myocardial injury. Methods The study tested whether the nucleolin cardiac-specific knockout in the mice could affect glucose metabolism through untargeted metabolomics, and the results of metabolomics were verified experimentally in H9C2 cells. The ATP content, lactate production, and oxygen consumption rate (OCR) were evaluated. Results The metabolomics results suggested that glycolytic products were increased in endotoxemia-induced myocardial injury, and that nucleolin myocardial-specific knockout altered oxidative phosphorylation-related pathways. The experiment data showed that TNF-α combined with LPS stimulation could increase the lactate content and the OCR values by about 25%, and decrease the ATP content by about 25%. However, interference with nucleolin expression could further decrease ATP content and OCR values by about 10-20% and partially increase the lactate level in the presence of TNF-α and LPS. However, nucleolin overexpression had the opposite protective effect, which partially reversed the decrease in ATP content and the increase in lactate level. Conclusion Down-regulation of nucleolin can exacerbate glucose metabolism disorders in endotoxemia-induced myocardial injury. Improving glucose metabolism by regulating nucleolin was expected to provide new therapeutic ideas for patients with septic cardiomyopathy.
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Affiliation(s)
- Yuting Tang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan, China
- National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan, China
| | - Leijing Yin
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan, China
- National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan, China
| | - Ludong Yuan
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan, China
- National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan, China
| | - Xiaofang Lin
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan, China
- National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan, China
| | - Bimei Jiang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan, China
- National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan, China
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12
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Willmann K, Moita LF. Physiologic disruption and metabolic reprogramming in infection and sepsis. Cell Metab 2024; 36:927-946. [PMID: 38513649 DOI: 10.1016/j.cmet.2024.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 02/12/2024] [Accepted: 02/21/2024] [Indexed: 03/23/2024]
Abstract
Effective responses against severe systemic infection require coordination between two complementary defense strategies that minimize the negative impact of infection on the host: resistance, aimed at pathogen elimination, and disease tolerance, which limits tissue damage and preserves organ function. Resistance and disease tolerance mostly rely on divergent metabolic programs that may not operate simultaneously in time and space. Due to evolutionary reasons, the host initially prioritizes the elimination of the pathogen, leading to dominant resistance mechanisms at the potential expense of disease tolerance, which can contribute to organ failure. Here, we summarize our current understanding of the role of physiological perturbations resulting from infection in immune response dynamics and the metabolic program requirements associated with resistance and disease tolerance mechanisms. We then discuss how insight into the interplay of these mechanisms could inform future research aimed at improving sepsis outcomes and the potential for therapeutic interventions.
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Affiliation(s)
- Katharina Willmann
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | - Luis F Moita
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de Ciência, Oeiras, Portugal; Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.
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13
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Tang L, Zhang J, Han J, Zhang D, Zhang H, Liu J, Li X. Molecular mechanism of circHIPK3 in mitochondrial function in septic acute kidney injury. ENVIRONMENTAL TOXICOLOGY 2024; 39:2596-2609. [PMID: 38205898 DOI: 10.1002/tox.24127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 11/20/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024]
Abstract
Cell senescence, glycolysis, and mitochondrial deficit jointly regulate the development of septic acute kidney injury (SAKI). This study aimed to explore the role of circular RNA HIPK3 (circHIPK3) in mitochondrial function in SAKI. The SAKI mouse model was established by Candida albicans infection, followed by Western blot assay, measurements of serum lactate, and adenosine triphosphate (ATP), 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimi-dazolylcarbocyanine iodide (JC-1) staining and flow cytometry. Human renal tubular epithelial cells were treated with lipopolysaccharide to establish the SAKI cell model, followed by cell counting kit-8 assay, tests of hexokinase activity, lactate production, oxygen consumption rate, extracellular acidification rate, ATP, and JC-1 staining, and Western blot assay. The roles of mitochondrial pyruvate carrier 1 (MPC1) were validated by kidney function tests, hematoxylin and eosin staining, periodic acid-Schiff staining, and SA-β-gal staining. circHIPK3 downregulation reduced glycolysis and mitochondrial dysfunction both in vivo and in vitro through the microRNA (miR)-148b-3p/DNMT1/3a/Klotho axis. Inhibition of miR-148b-3p or Klotho increased glycolysis and mitochondrial dysfunction. Knockdown of MPC1 increased lactate content and decreased ATP levels and MMP both in vivo and in vitro. Collectively, circHIPK3, in concert with the miR-148b-3p/DNMT1/3a/Klotho axis, increased glycolysis, and inhibited the negative regulation of lactate production by MPC1, and aggravated mitochondrial dysfunction and cell senescence in SAKI.
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Affiliation(s)
- Lili Tang
- Department of Critical Care Medicine, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
- Department of Emergency, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
| | - Jie Zhang
- Department of Critical Care Medicine, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
- Department of Emergency, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
| | - Jing Han
- Department of Critical Care Medicine, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
- Department of Emergency, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
| | - Danhong Zhang
- Department of Critical Care Medicine, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
- Department of Emergency, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
| | - Hongtao Zhang
- Department of Critical Care Medicine, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
- Department of Emergency, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
| | - Jun Liu
- Department of Critical Care Medicine, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
- Department of Emergency, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
| | - Xiaoyue Li
- Department of Critical Care Medicine, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
- Department of Emergency, The Fifth Affiliated Hospital (Zhuhai) of Zunyi Medical University, Zhuhai, People's Republic of China
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14
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Lu H. Inflammatory liver diseases and susceptibility to sepsis. Clin Sci (Lond) 2024; 138:435-487. [PMID: 38571396 DOI: 10.1042/cs20230522] [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: 09/03/2023] [Revised: 01/09/2024] [Accepted: 03/12/2024] [Indexed: 04/05/2024]
Abstract
Patients with inflammatory liver diseases, particularly alcohol-associated liver disease and metabolic dysfunction-associated fatty liver disease (MAFLD), have higher incidence of infections and mortality rate due to sepsis. The current focus in the development of drugs for MAFLD is the resolution of non-alcoholic steatohepatitis and prevention of progression to cirrhosis. In patients with cirrhosis or alcoholic hepatitis, sepsis is a major cause of death. As the metabolic center and a key immune tissue, liver is the guardian, modifier, and target of sepsis. Septic patients with liver dysfunction have the highest mortality rate compared with other organ dysfunctions. In addition to maintaining metabolic homeostasis, the liver produces and secretes hepatokines and acute phase proteins (APPs) essential in tissue protection, immunomodulation, and coagulation. Inflammatory liver diseases cause profound metabolic disorder and impairment of energy metabolism, liver regeneration, and production/secretion of APPs and hepatokines. Herein, the author reviews the roles of (1) disorders in the metabolism of glucose, fatty acids, ketone bodies, and amino acids as well as the clearance of ammonia and lactate in the pathogenesis of inflammatory liver diseases and sepsis; (2) cytokines/chemokines in inflammatory liver diseases and sepsis; (3) APPs and hepatokines in the protection against tissue injury and infections; and (4) major nuclear receptors/signaling pathways underlying the metabolic disorders and tissue injuries as well as the major drug targets for inflammatory liver diseases and sepsis. Approaches that focus on the liver dysfunction and regeneration will not only treat inflammatory liver diseases but also prevent the development of severe infections and sepsis.
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Affiliation(s)
- Hong Lu
- Department of Pharmacology, SUNY Upstate Medical University, Syracuse, NY 13210, U.S.A
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15
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Dhiman S, Mannan A, Taneja A, Mohan M, Singh TG. Sirtuin dysregulation in Parkinson's disease: Implications of acetylation and deacetylation processes. Life Sci 2024; 342:122537. [PMID: 38428569 DOI: 10.1016/j.lfs.2024.122537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/16/2024] [Accepted: 02/23/2024] [Indexed: 03/03/2024]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative condition that primarily affects motor function and is caused by a gradual decline of dopaminergic neurons in the brain's substantia pars compacta (Snpc) region. Multiple molecular pathways are involved in the pathogenesis, which results in impaired cellular functions and neuronal degeneration. However, the role of sirtuins, a type of NAD+-dependent deacetylase, in the pathogenesis of Parkinson's disease has recently been investigated. Sirtuins are essential for preserving cellular homeostasis because they control a number of biological processes, such as metabolism, apoptosis, and DNA repair. This review shed lights on the dysregulation of sirtuin activity in PD, highlighting the role that acetylation and deacetylation processes play in the development of the disease. Key regulators of protein acetylation, sirtuins have been found to be involved in the aberrant acetylation of vital substrates linked to PD pathology when their balance is out of balance. The hallmark characteristics of PD such as neuroinflammation, oxidative stress, and mitochondrial dysfunction have all been linked to the dysregulation of sirtuin expression and activity. Furthermore, we have also explored how the modulators of sirtuins can be a promising therapeutic intervention in the treatment of PD.
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Affiliation(s)
- Sonia Dhiman
- Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India
| | - Ashi Mannan
- Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India
| | - Ayushi Taneja
- Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India
| | - Maneesh Mohan
- Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India
| | - Thakur Gurjeet Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India.
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16
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Zhang P, Guo E, Xu L, Shen Z, Jiang N, Liu X. Knockdown of circ-Gatad1 alleviates LPS induced HK2 cell injury via targeting miR-22-3p/TRPM7 axis in septic acute kidney. BMC Nephrol 2024; 25:79. [PMID: 38443846 PMCID: PMC10916237 DOI: 10.1186/s12882-024-03513-1] [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: 09/08/2023] [Accepted: 02/20/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Sepsis is a life-threatening, systemic inflammatory disease that can lead to a variety of conditions, including septic acute kidney injury (AKI). Recently, multiple circular Rnas (circRNAs) have been implicated in the development of this disease. METHODS In this study, we aimed to elucidate the role of circ-Gatad1 in sepsis induced AKI and its potential mechanism of action. High-throughput sequencing was used to investigate abnormal expression of circRNA in AKI and healthy volunteer. Bioinformatics analysis and luciferase reporting analysis were used to clarify the interacted relationship among circRNA, miRNA and mRNA. HK2 cells were treated with lipopolysaccharide (LPS) to establish septic AKI cell model. HK2 cells were employ to analysis the ROS, inflammatory cytokines expression, proliferation and apoptosis under LPS condition. RESULTS The result show that the expression of circ-Gatad1 was increased in septic acute kidney patients. Downregulation circ-Gatad1 suppressed LPS-treated induced HK2 cells injury including apoptosis, proliferation ability, ROS and inflammatory cytokines level. Bioinformatics and luciferase report analysis confirmed that both miR-22-3p and TRPM7 were downstream targets of circ-Gatad1. Overexpression of TRPM7 or downregulation of miR-22-3p reversed the protective effect of si-circ-Gatad1 to HK2 after exposure to LPS (5 µg/ml) microenvironment. CONCLUSION In conclusion, knockdown of circ-Gatad1 alleviates LPS induced HK2 cell injury via targeting miR-22-3p/TRPM7 axis in septic acute kidney.
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Affiliation(s)
- Pan Zhang
- Department of Clinical Laboratory, Gongli Hospital of Shanghai Pudong New Area, 219 Miao Pu Road, 200135, Shanghai, China
| | - Enwei Guo
- Department of Intensive Care Unit, Gongli Hospital of Shanghai Pudong New Area, 219 Miao Pu Road, 200135, Shanghai, China
| | - Limin Xu
- Department of Clinical Laboratory, Gongli Hospital of Shanghai Pudong New Area, 219 Miao Pu Road, 200135, Shanghai, China
| | - Zhenhua Shen
- Department of Clinical Laboratory, Gongli Hospital of Shanghai Pudong New Area, 219 Miao Pu Road, 200135, Shanghai, China
| | - Na Jiang
- Department of Clinical Laboratory, Gongli Hospital of Shanghai Pudong New Area, 219 Miao Pu Road, 200135, Shanghai, China
| | - Xinhui Liu
- Department of Clinical Laboratory, Gongli Hospital of Shanghai Pudong New Area, 219 Miao Pu Road, 200135, Shanghai, China.
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17
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Li Z, Tian Z. Restoration of autophagy activity by dipsacoside B alleviates exhaustive exercise-induced kidney injury via the AMPK/mTOR pathway. Nat Prod Res 2024:1-7. [PMID: 38293762 DOI: 10.1080/14786419.2024.2308002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 01/16/2024] [Indexed: 02/01/2024]
Abstract
Exhaustive exercise (EE) induces kidney injury, but its concrete mechanism has not been fully elucidated. Hepatoprotective effects of dipsacoside B (DB) have been found previously, involving in autophagy induction. However, whether DB exerts renal protective effect and its potential mechanism are still unknown. The present study aimed to investigate the benefit of DB in EE-induced kidney injury and decipher its underlying mechanism. Here, we found that DB ameliorated EE-induced renal dysfunction and renal histopathological injury in rats. DB possessed anti-inflammatory, anti-oxidative, and anti-apoptotic functions in kidneys of exercise-induced exhausted rats. Besides, DB improved autophagy function in kidneys of EE rats. Mechanically, activation of the adenylate-activating protein kinase (AMPK)/mammalian target of rapamycin (mTOR) pathway was implicated in the kidney injury-relieving effects and autophagy restoration induced by DB. Collectively, these findings provide reference for the clinical application of DB in preventing and managing EE-induced kidney injury.
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Affiliation(s)
- Zhenyu Li
- Sias University, Xinzheng, P.R. China
- The 521 Laboratory of Sports Physiology and Biochemistry, Department of Sport Science, College of Natural Science, Jeonbuk National University, Jeonju-si, Republic of Korea
| | - Zhuang Tian
- The 521 Laboratory of Sports Physiology and Biochemistry, Department of Sport Science, College of Natural Science, Jeonbuk National University, Jeonju-si, Republic of Korea
- College of Physical Education, Zhengzhou University, Zhengzhou, P.R. China
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18
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Yu D, Huang W, Sheng M, Zhang S, Pan H, Ren F, Luo L, Zhou J, Huang D, Tang L. Angiotensin-(1-7) Modulates the Warburg Effect to Alleviate Inflammation in LPS-Induced Macrophages and Septic Mice. J Inflamm Res 2024; 17:469-485. [PMID: 38282712 PMCID: PMC10822192 DOI: 10.2147/jir.s446013] [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: 10/22/2023] [Accepted: 01/13/2024] [Indexed: 01/30/2024] Open
Abstract
Purpose Inflammation triggers a metabolic shift in macrophages from oxidative phosphorylation to glycolysis, a phenomenon known as the Warburg effect. This metabolic reprogramming worsens inflammation and cascades into organ damage. Angiotensin-(1-7) [Ang-(1-7)], a small molecule, has demonstrated anti-inflammatory properties. This study investigates whether Ang-(1-7) mitigates inflammation in LPS-induced macrophages and septic mice by regulating the Warburg effect in immune metabolism. Methods The study induced macrophages with LPS in vitro and measured inflammatory factors using ELISA and Western blot. Key enzymes in glycolysis, mitochondrial respiratory complexes, and citrate pathway key molecules were assessed using Western blot and qRT-PCR. Mitochondrial membrane potential (MMP), lactate, and ATP were measured using assay kits. In vivo, a mouse model of sepsis induced by LPS was used. Kidney tissues were examined for pathological and mitochondrial ultrastructural alterations. The levels of inflammatory factors in mouse serum, glycolysis and citrate pathway-related molecules in the kidney were assessed using qRT-PCR, Western blot, and immunofluorescence techniques. Additionally, MMP, lactate, and ATP in the kidney were measured using assay kits. Results In vitro experiments demonstrated that Ang-(1-7) inhibited the levels of inflammatory factors in LPS-treated RAW264.7 cells. It also reduced the expression of key glycolytic enzymes HK2, PFKFB3, and PKM2, as well as lactate levels. Additionally, it decreased intracellular citrate accumulation, enhanced mitochondrial respiratory complexes I and III, and ATP levels. Ang-(1-7) alleviated MMP damage, modulated citrate pathway-related molecules, including SLC25A1, ACLY, and HIF-1α. In vivo experiments showed that Ang-(1-7) lowered glycolysis levels in septic mice, improved mitochondrial ultrastructure and function, mitigated inflammation and renal tissues damage in septic mice, and suppressed the expression of key molecules in the citrate pathway. Conclusion In conclusion, Ang-(1-7) can regulate the Warburg effect through the citrate pathway, thereby alleviating inflammation in LPS-induced macrophages and septic mice.
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Affiliation(s)
- Dan Yu
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Wenhan Huang
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Min Sheng
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Shan Zhang
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Hang Pan
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Feifeng Ren
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Lei Luo
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Jun Zhou
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Dongmei Huang
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Lin Tang
- Department of Rheumatology and Immunology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
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19
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Tang W, Wei Q. The metabolic pathway regulation in kidney injury and repair. Front Physiol 2024; 14:1344271. [PMID: 38283280 PMCID: PMC10811252 DOI: 10.3389/fphys.2023.1344271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 12/28/2023] [Indexed: 01/30/2024] Open
Abstract
Kidney injury and repair are accompanied by significant disruptions in metabolic pathways, leading to renal cell dysfunction and further contributing to the progression of renal pathology. This review outlines the complex involvement of various energy production pathways in glucose, lipid, amino acid, and ketone body metabolism within the kidney. We provide a comprehensive summary of the aberrant regulation of these metabolic pathways in kidney injury and repair. After acute kidney injury (AKI), there is notable mitochondrial damage and oxygen/nutrient deprivation, leading to reduced activity in glycolysis and mitochondrial bioenergetics. Additionally, disruptions occur in the pentose phosphate pathway (PPP), amino acid metabolism, and the supply of ketone bodies. The subsequent kidney repair phase is characterized by a metabolic shift toward glycolysis, along with decreased fatty acid β-oxidation and continued disturbances in amino acid metabolism. Furthermore, the impact of metabolism dysfunction on renal cell injury, regeneration, and the development of renal fibrosis is analyzed. Finally, we discuss the potential therapeutic strategies by targeting renal metabolic regulation to ameliorate kidney injury and fibrosis and promote kidney repair.
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Affiliation(s)
- Wenbin Tang
- Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Qingqing Wei
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA, United States
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20
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Zhao WM, Li XL, Zhu Y, Shi R, Wang ZJ, Xiao JP, Wang DG. Diosmin ameliorates renal fibrosis through inhibition of inflammation by regulating SIRT3-mediated NF-κB p65 nuclear translocation. BMC Complement Med Ther 2024; 24:29. [PMID: 38195573 PMCID: PMC10777592 DOI: 10.1186/s12906-023-04330-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 12/25/2023] [Indexed: 01/11/2024] Open
Abstract
BACKGROUND Renal fibrosis is considered an irreversible pathological process and the ultimate common pathway for the development of all types of chronic kidney diseases and renal failure. Diosmin is a natural flavonoid glycoside that has antioxidant, anti-inflammatory, and antifibrotic activities. However, whether Diosmin protects kidneys by inhibiting renal fibrosis is unknown. We aimed to investigate the role of Diosmin in renal interstitial fibrosis and to explore the underlying mechanisms. METHODS The UUO mouse model was established and gavaged with Diosmin (50 mg/kg·d and 100 mg/kg·d) for 14 days. HE staining, Masson staining, immunohistochemistry, western blotting and PCR were used to assess renal tissue injury and fibrosis. Elisa kits were used to detect the expression levels of IL-1β, IL-6, and TNF-α and the activity of SIRT3 in renal tissues. In addition, enrichment maps of RNA sequencing analyzed changes in signaling pathways. In vitro, human renal tubular epithelial cells (HK-2) were stimulated with TGF-β1 and then treated with diosmin (75 μM). The protein and mRNA expression levels of SIRT3 were detected in the cells. In addition, 3-TYP (selective inhibitor of SIRT3) and SIRT3 small interfering RNA (siRNA) were used to reduce SIRT3 levels in HK-2. RESULTS Diosmin attenuated UUO-induced renal fibrosis and TGF-β1-induced HK-2 fibrosis. In addition, Diosmin reduced IL-1β, IL-6, and TNF-α levels in kidney tissues and supernatants of HK-2 medium. Interestingly, Diosmin administration increased the enzymatic activity of SIRT3 in UUO kidneys. In addition, Diosmin significantly increased mRNA and protein expression of SIRT3 in vitro and in vivo. Inhibition of SIRT3 expression using 3-TYP or SIRT3 siRNA abolished the anti-inflammatory effects of diosmin in HK-2 cells. Enrichment map analysis by RNA sequencing indicates that the nuclear factor-kappa B (NF-κB) signaling pathway was inhibited in the Diosmin intervention group. Furthermore, we found that TGF-β1 increased the nuclear expression of nuclear NF-κB p65 but had little significant effect on the total intracellular expression of NF-κB p65. Additionally, Diosmin reduced TGF-β1-caused NF-κB p65 nuclear translocation. Knockdown of SIRT3 expression by SIRT3 siRNA increased the nuclear expression of NF-κB p65 and abolished the inhibition effect of Diosmin in NF-κB p65 expression. CONCLUSIONS Diosmin reduces renal inflammation and fibrosis, which is contributed by inhibiting nuclear translocation of NF-κB P65 through activating SIRT3.
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Affiliation(s)
- Wen-Man Zhao
- Department of Nephrology, the Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
- Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xun-Liang Li
- Department of Nephrology, the Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
- Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yuyu Zhu
- Department of Nephrology, the Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
- Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Rui Shi
- Department of Nephrology, the Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
- Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zhi-Juan Wang
- Department of Nephrology, the Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
- Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jian-Ping Xiao
- Department of Nephrology, the Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
- Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - De-Guang Wang
- Department of Nephrology, the Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China.
- Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, the Second Affiliated Hospital of Anhui Medical University, Hefei, China.
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Jiang D, Guo J, Liu Y, Li W, Lu D. Glycolysis: an emerging regulator of osteoarthritis. Front Immunol 2024; 14:1327852. [PMID: 38264652 PMCID: PMC10803532 DOI: 10.3389/fimmu.2023.1327852] [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: 10/25/2023] [Accepted: 12/20/2023] [Indexed: 01/25/2024] Open
Abstract
Osteoarthritis (OA) has been a leading cause of disability in the elderly and there remains a lack of effective therapeutic approaches as the mechanisms of pathogenesis and progression have yet to be elucidated. As OA progresses, cellular metabolic profiles and energy production are altered, and emerging metabolic reprogramming highlights the importance of specific metabolic pathways in disease progression. As a crucial part of glucose metabolism, glycolysis bridges metabolic and inflammatory dysfunctions. Moreover, the glycolytic pathway is involved in different areas of metabolism and inflammation, and is associated with a variety of transcription factors. To date, it has not been fully elucidated whether the changes in the glycolytic pathway and its associated key enzymes are associated with the onset or progression of OA. This review summarizes the important role of glycolysis in mediating cellular metabolic reprogramming in OA and its role in inducing tissue inflammation and injury, with the aim of providing further insights into its pathological functions and proposing new targets for the treatment of OA.
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Affiliation(s)
- Dingming Jiang
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, China
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Jianan Guo
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yingquan Liu
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Wenxin Li
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- Hangzhou Linping District Nanyuan Street Community Health Center, Hangzhou, China
| | - Dezhao Lu
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, China
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22
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Xu S, Luo J, Wang Y, Chen X. Fatty Acid Binding Protein-4 Silencing Inhibits Ferroptosis to Alleviate Lipopolysaccharide-induced Injury of Renal Tubular Epithelial Cells by Blocking Janus Kinase 2/Signal Transducer and Activator of Transcription 3 Signaling. CHINESE J PHYSIOL 2024; 67:47-56. [PMID: 38780272 DOI: 10.4103/ejpi.ejpi-d-23-00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/05/2024] [Indexed: 05/25/2024] Open
Abstract
Sepsis-induced kidney injury (SAKI) has been frequently established as a prevailing complication of sepsis which is linked to unfavorable outcomes. Fatty acid-binding protein-4 (FABP4) has been proposed as a possible target for the treatment of SAKI. In the current work, we aimed to explore the role and underlying mechanism of FABP4 in lipopolysaccharide (LPS)-induced human renal tubular epithelial cell damage. In LPS-induced human kidney 2 (HK2) cells, FABP4 expression was tested by the reverse transcription-quantitative polymerase chain reaction and Western blot. Cell counting kit-8 method assayed cell viability. Inflammatory levels were detected using the enzyme-linked immunosorbent assay. Immunofluorescence staining measured the nuclear translocation of nuclear factor kappa B p65. Thiobarbituric acid-reactive substances assay and C11 BODIPY 581/591 probe were used to estimate the level of cellular lipid peroxidation. Fe2+ content was examined by the kit. In addition, the expression of proteins related to inflammation-, ferroptosis- and Janus kinase 2 (JAK2)/signal transducer, and activator of transcription 3 (STAT3) signaling was detected by the Western blot analysis. The results revealed that FABP4 was significantly upregulated in LPS-treated HK2 cells, the knockdown of which elevated the viability, whereas alleviated the inflammation and ferroptosis in HK2 cells challenged with LPS. In addition, down-regulation of FABP4 inactivated JAK2/STAT3 signaling. JAK2/STAT3 stimulator (colivelin) and ferroptosis activator (Erastin) partially restored the effects of FABP4 interference on LPS-triggered inflammation and ferroptosis in HK2 cells. Together, FABP4 knockdown inhibited ferroptosis to alleviate LPS-induced injury of renal tubular epithelial cells through suppressing JAK2/STAT3 signaling.
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Affiliation(s)
- Suo Xu
- Department of Emergency Medicine, The Affiliated Lianyungang Hospital of Xuzhou Medical University (The First People's Hospital of Lianyungang), Lianyungang, Jiangsu, China
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Fan H, Le JW, Sun M, Zhu JH. N-acetylcysteine protects septic acute kidney injury by inhibiting SIRT3-mediated mitochondrial dysfunction and apoptosis. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2024; 27:850-856. [PMID: 38800015 PMCID: PMC11127075 DOI: 10.22038/ijbms.2024.72882.15853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 11/13/2023] [Indexed: 05/29/2024]
Abstract
Objectives To investigate the protective effect of N-acetylcysteine (NAC) on septic acute kidney injury (SAKI) via regulating Sirtuin3 (SIRT3)-mediated mitochondrial dysfunction and apoptosis. Materials and Methods By constructing SIRT3 knockout mice and culturing kidney tubular epithelial cells (KTECs), we assessed the changes of renal function and detected the protein expression of adenine nucleotide translocator (ANT), cyclophilin (CypD) and voltage-dependent anion channel (VDAC) using western-blotting, and simultaneously detected toll-like receptor 4 (TLR4), inhibitor of kappa B kinase (IKKβ), inhibitor of Kappa Bα (IκBα), and p65 protein expression. We observed mitochondrial damage of KTECs using a transmission electron microscope and assessed apoptosis by TdT-mediated dUTP Nick-End Labeling and flow cytometry. Results SIRT3 deficiency led to the deterioration of renal function, and caused a significant increase in inducible nitric oxide synthase production, a decrease in mitochondrial volume, up-regulation of TLR4, IκBα, IKKβ, and p65 proteins, and up-regulation of ANT, CypD and VDAC proteins. However, NAC significantly improved renal function and down-regulated the expression of TLR4, IκBα, IKKβ, and p65 proteins. Furthermore, SIRT3 deficiency led to a significant increase in KTEC apoptosis, while NAC up-regulated the expression of SIRT3 and inhibited apoptosis. Conclusion NAC has a significant protective effect on SAKI by inhibiting SIRT3-mediated mitochondrial dysfunction and apoptosis of KTECs.
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Affiliation(s)
- Heng Fan
- Department of Intensive Care Unit, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang Province, P.R China
| | - Jian-wei Le
- Department of Intensive Care Unit, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang Province, P.R China
| | - Min Sun
- Department of Intensive Care Unit, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang Province, P.R China
| | - Jian-hua Zhu
- Department of Intensive Care Unit, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang Province, P.R China
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Guo J, Chen L, Ma M. Ginsenoside Rg1 Suppresses Ferroptosis of Renal Tubular Epithelial Cells in Sepsis-induced Acute Kidney Injury via the FSP1-CoQ 10- NAD(P)H Pathway. Curr Med Chem 2024; 31:2119-2132. [PMID: 37287288 DOI: 10.2174/0929867330666230607125054] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/26/2023] [Accepted: 05/12/2023] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Sepsis-induced acute kidney injury is related to an increased mortality rate by modulating ferroptosis through ginsenoside Rg1. In this study, we explored the specific mechanism of it. METHODS Human renal tubular epithelial cells (HK-2) were transfected with oe-ferroptosis suppressor protein 1 and treated with lipopolysaccharide for ferroptosis induction, and they were then treated with ginsenoside Rg1 and ferroptosis suppressor protein 1 inhibitor. Ferroptosis suppressor protein 1, CoQ10, CoQ10H2, and intracellular NADH levels in HK-2 cells were assessed by Western blot, ELISA kit, and NAD/NADH kit. NAD+/NADH ratio was also calculated, and 4-Hydroxynonal fluorescence intensity was assessed by immunofluorescence. HK-2 cell viability and death were assessed by CCK-8 and propidium iodide staining. Ferroptosis, lipid peroxidation, and reactive oxygen species accumulation were assessed by Western blot, kits, flow cytometry, and C11 BODIPY 581/591 molecular probe. Sepsis rat models were established by cecal ligation and perforation to investigate whether ginsenoside Rg1 regulated the ferroptosis suppressor protein 1-CoQ10-NAD(P)H pathway in vivo. RESULTS LPS treatment diminished ferroptosis suppressor protein 1, CoQ10, CoQ10H2, and NADH contents in HK-2 cells, while facilitating NAD+/NADH ratio and relative 4- Hydroxynonal fluorescence intensity. FSP1 overexpression inhibited lipopolysaccharideinduced lipid peroxidation in HK-2 cells via the ferroptosis suppressor protein 1-CoQ10- NAD(P)H pathway. The ferroptosis suppressor protein 1-CoQ10-NAD(P)H pathway suppressed lipopolysaccharide-induced ferroptosis in HK-2 cells. Ginsenoside Rg1 alleviated ferroptosis in HK-2 cells by regulating the ferroptosis suppressor protein 1-CoQ10- NAD(P)H pathway. Moreover, ginsenoside Rg1 regulated the ferroptosis suppressor protein 1-CoQ10-NAD(P)H pathway in vivo. CONCLUSION Ginsenoside Rg1 alleviated sepsis-induced acute kidney injury by blocking renal tubular epithelial cell ferroptosis via the ferroptosis suppressor protein 1-CoQ10- NAD(P)H pathway.
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Affiliation(s)
- Jun Guo
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, School of Medicine, Zhongda Hospital, Southeast University, No. 87, Dingjiaqiao Road, Gulou District, Nanjing, 210009, Jiangsu Province, China
- Department of Critical Care Medicine, Union Jiangbei Hospital, Huazhong University of Science and Technology, No. 111, Success Road, Caidian District, Wuhan, 430100, Hubei Province, China
| | - Long Chen
- Department of Critical Care Medicine, Union Jiangbei Hospital, Huazhong University of Science and Technology, No. 111, Success Road, Caidian District, Wuhan, 430100, Hubei Province, China
| | - Min Ma
- Department of Critical Care Medicine, Union Jiangbei Hospital, Huazhong University of Science and Technology, No. 111, Success Road, Caidian District, Wuhan, 430100, Hubei Province, China
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Wan P, Tan X, Sheng M, Xiang Y, Wang P, Yu M. Platelet Exosome-Derived miR-223-3p Regulates Pyroptosis in the Cell Model of Sepsis-Induced Acute Renal Injury by Targeting Mediates NLRP3. Crit Rev Immunol 2024; 44:53-65. [PMID: 38421705 DOI: 10.1615/critrevimmunol.2023051651] [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: 03/02/2024]
Abstract
BACKGROUND The present study investigated the roles and mechanisms of platelet-derived exosomes in sepsis-induced acute renal injury. METHODS The blood samples of septic patients and healthy controls were collected for clinical examination. The plasma levels of miR-223-3p and NLRP3 mRNA were analyzed by qRT-PCR and the serum IL-1β and creatinine levels were quantified by enzyme-linked immunosorbent assay (ELISA). C57BL/6 mice injected with LPS (lipopolysaccharide) were employed as the animal model for sepsis-induced acute renal injury. Human coronary artery endothelial cells (HCAECs) were treated with TNF-α as a cellular model for sepsis-induced endothelial damages. RESULTS The number of PMP (platelet-derived microparticles) in patients with sepsis was increased. The level of miR-223-3p in the platelet exosomes isolated from the serum sample in patients with sepsis was significantly lower than that of the healthy controls. The level of miR-223-3p was also decreased in the platelet exosomes of mouse model with sepsis-induced acute renal injury. Downregulating miR-223-3p promoted sepsis-induced acute renal injury in mice model, while the administration of miR-223-3p reduced the inflammation in endothelial cells of sepsis-induced acute renal injury. NLRP3 (NLR Family Pyrin Domain Containing 3) was identified as one target of miR-223-3p in the platelet exosomes of sepsis-induced acute kidney injury. miR-223-3p attenuated NLRP3-induced pyroptosis in endothelial cell model of sepsis-induced acute kidney injury. CONCLUSION Our data suggest that platelet exosome-derived miR-223-3p negatively regulates NLRP3-dependent inflammasome to suppress pyroptosis in endothelial cells. Decreased miR-223-3p expression promotes the inflammation in sepsis-induced acute renal injury. Targeting miR-223-3p may be developed into a therapeutic approach for sepsis-induced acute renal injury.
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Affiliation(s)
- Peng Wan
- Department of Critical Care Medicine, The First Clinical Medical College of Three Gorges University,Yichang Central People's Hospital, Yichang City, Hubei, 443000, China
| | - Xiang Tan
- Department of Critical Care Medicine, The First Clinical Medical College of Three Gorges University,Yichang Central People's Hospital, Yichang City, Hubei, 443000, China
| | - Mengting Sheng
- Department of Critical Care Medicine, The First Clinical Medical College of Three Gorges University,Yichang Central People's Hospital, Yichang City, Hubei, 443000, China
| | - Yan Xiang
- Department of Critical Care Medicine, The First Clinical Medical College of Three Gorges University,Yichang Central People's Hospital, Yichang City, Hubei, 443000, China
| | - Peng Wang
- Department of Critical Care Medicine, The First Clinical Medical College of Three Gorges University,Yichang Central People's Hospital, Yichang City, Hubei, 443000, China
| | - Min Yu
- The people's hospital of China Three Gorges University
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Xiao S, Qi M, Zhou Q, Gong H, Wei D, Wang G, Feng Q, Wang Z, Liu Z, Zhou Y, Ma X. Macrophage fatty acid oxidation in atherosclerosis. Biomed Pharmacother 2024; 170:116092. [PMID: 38157642 DOI: 10.1016/j.biopha.2023.116092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024] Open
Abstract
Atherosclerosis significantly contributes to the development of cardiovascular diseases (CVD) and is characterized by lipid retention and inflammation within the artery wall. Multiple immune cell types are implicated in the pathogenesis of atherosclerosis, macrophages play a central role as the primary source of inflammatory effectors in this pathogenic process. The metabolic influences of lipids on macrophage function and fatty acid β-oxidation (FAO) have similarly drawn attention due to its relevance as an immunometabolic hub. This review discusses recent findings regarding the impact of mitochondrial-dependent FAO in the phenotype and function of macrophages, as well as transcriptional regulation of FAO within macrophages. Finally, the therapeutic strategy of macrophage FAO in atherosclerosis is highlighted.
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Affiliation(s)
- Sujun Xiao
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Mingxu Qi
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Qinyi Zhou
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Huiqin Gong
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Duhui Wei
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Guangneng Wang
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Qilun Feng
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Zhou Wang
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Zhe Liu
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Yiren Zhou
- The Affiliated Nanhua Hospital, Department of Emergency, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Xiaofeng Ma
- The Affiliated Nanhua Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
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Jin C, Cao Y, Li Y. Bone Mesenchymal Stem Cells Origin Exosomes are Effective Against Sepsis-Induced Acute Kidney Injury in Rat Model. Int J Nanomedicine 2023; 18:7745-7758. [PMID: 38144514 PMCID: PMC10743757 DOI: 10.2147/ijn.s417627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 12/13/2023] [Indexed: 12/26/2023] Open
Abstract
Introduction The incidence and mortality rates of sepsis-induced acute kidney injury (SAKI) remain high, posing a substantial healthcare burden. Studies have implicated a connection between the development of SAKI and inflammation response, apoptosis, and autophagy. Moreover, evidence suggests that manipulating autophagy could potentially influence the prognosis of this condition. Notably, exosomes derived from bone mesenchymal stem cells (BMSCs-Exo) have exhibited promise in mitigating cellular damage by modulating pathways associated with inflammation, apoptosis, and autophagy. Thus, this study aims to investigate the influence of BMSCs-Exo on SAKI and the potential mechanisms that drive this impact. Methods The SAKI model was induced in HK-2 cells using lipopolysaccharide (LPS), while rats underwent cecal ligation and puncture (CLP) to simulate the condition. Cell viability was assessed using the CCK-8 kit, and kidney damage was evaluated through HE staining, blood urea nitrogen (BUN), and serum creatinine (SCr) measurements. Inflammatory-related RNAs and proteins were quantified via qPCR and ELISA, respectively. Apoptosis was determined through apoptosis-related protein levels, flow cytometry, and TUNEL staining. Western blot analysis was utilized to measure associated protein expressions. Results In vivo, BMSCs-Exo ameliorated kidney injury in CLP-induced SAKI rats, reducing inflammatory cytokine production and apoptosis levels. Fluorescence microscope observed the absorption of BMSCs-Exo by renal cells following injection via tail vein. In the SAKI rat kidney tissue, there was an upregulation of LC3-II/LC3-I, p62, and phosphorylated AMP-activated protein kinase (p-AMPK) expressions, indicating blocked autophagic flux, while phosphorylated mammalian target of rapamycin (p-mTOR) expression was downregulated. However, BMSCs-Exo enhanced LC3-II/LC3-I and p-AMPK expression, concurrently reducing p62 and p-mTOR levels. In vitro, BMSCs-Exo enhanced cell viability in LPS-treated HK-2 cells, and exerted anti-inflammation and anti-apoptosis effects which were consistent with the results in vivo. Similarly, rapamycin (Rapa) exhibited a protective effect comparable to BMSCs-Exo, albeit partially abrogated by 3-methyladenine (3-MA). Conclusion BMSCs-Exo mitigate inflammation and apoptosis through autophagy in SAKI, offering a promising avenue for SAKI treatment.
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Affiliation(s)
- Cui Jin
- Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072, People’s Republic of China
| | - Yongmei Cao
- Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072, People’s Republic of China
| | - Yingchuan Li
- Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072, People’s Republic of China
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Zhao L, Hao Y, Tang S, Han X, Li R, Zhou X. Energy metabolic reprogramming regulates programmed cell death of renal tubular epithelial cells and might serve as a new therapeutic target for acute kidney injury. Front Cell Dev Biol 2023; 11:1276217. [PMID: 38054182 PMCID: PMC10694365 DOI: 10.3389/fcell.2023.1276217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 11/08/2023] [Indexed: 12/07/2023] Open
Abstract
Acute kidney injury (AKI) induces significant energy metabolic reprogramming in renal tubular epithelial cells (TECs), thereby altering lipid, glucose, and amino acid metabolism. The changes in lipid metabolism encompass not only the downregulation of fatty acid oxidation (FAO) but also changes in cell membrane lipids and triglycerides metabolism. Regarding glucose metabolism, AKI leads to increased glycolysis, activation of the pentose phosphate pathway (PPP), inhibition of gluconeogenesis, and upregulation of the polyol pathway. Research indicates that inhibiting glycolysis, promoting the PPP, and blocking the polyol pathway exhibit a protective effect on AKI-affected kidneys. Additionally, changes in amino acid metabolism, including branched-chain amino acids, glutamine, arginine, and tryptophan, play an important role in AKI progression. These metabolic changes are closely related to the programmed cell death of renal TECs, involving autophagy, apoptosis, necroptosis, pyroptosis, and ferroptosis. Notably, abnormal intracellular lipid accumulation can impede autophagic clearance, further exacerbating lipid accumulation and compromising autophagic function, forming a vicious cycle. Recent studies have demonstrated the potential of ameliorating AKI-induced kidney damage through calorie and dietary restriction. Consequently, modifying the energy metabolism of renal TECs and dietary patterns may be an effective strategy for AKI treatment.
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Affiliation(s)
- Limei Zhao
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yajie Hao
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Shuqin Tang
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xiutao Han
- The Third Clinical College, Shanxi University of Chinese Medicine, Jinzhong, Shanxi, China
| | - Rongshan Li
- Department of Nephrology, Shanxi Provincial People’s Hospital, The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xiaoshuang Zhou
- Department of Nephrology, Shanxi Provincial People’s Hospital, The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi, China
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Sun Z, Song Y, Li J, Li Y, Yu Y, Wang X. Potential biomarker for diagnosis and therapy of sepsis: Lactylation. Immun Inflamm Dis 2023; 11:e1042. [PMID: 37904710 PMCID: PMC10571012 DOI: 10.1002/iid3.1042] [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: 07/17/2023] [Revised: 09/17/2023] [Accepted: 09/21/2023] [Indexed: 11/01/2023] Open
Abstract
INTRODUCTION As a disease that has plagued human health for decades, sepsis has so far had no specific diagnostic or therapeutic indicators. The discovery of lactylation modifications not only uncovered the deep-rooted causes of changing between lactate level and pathophysiology and immunology of sepsis, but also reaffirmed the inevitable link between metabolic reprogramming and epigenetic reprogramming in sepsis. Lactylation modification became a potential marker for diagnosis and guiding the treatment of sepsis. AIM In this paper, we will summarize the discovery and regulation of lactylation modifications, discuss the study of lactylation modifications in sepsis, and evaluate their possibility and potential as diagnostic and therapeutic indicators of sepsis. CONCLUSION Lactylation modification is directly regulated by glycolysis and lactate, and inhibition of glycolytic pathway-related enzymes can regulate the level of lactylation modification, and more importantly, lactylation modification can act on these enzymes to regulate their functions and feedback regulate the level of glycolysis, this finding provides more ideas for clinical treatment of sepsis. We use "epigenetic modification", "glycolysis", "lactate", "lactylaiton" and "sepsis" as keywords and search the relevant literature through Pubmed and Web of science up to 2023.
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Affiliation(s)
- ZeXian Sun
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
- Anaesthesiology, The Graduate SchoolTianjin Medical UniversityTianjinChina
| | - Yu Song
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
- Anaesthesiology, The Graduate SchoolTianjin Medical UniversityTianjinChina
| | - Jie Li
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
- Anaesthesiology, The Graduate SchoolTianjin Medical UniversityTianjinChina
| | - Yize Li
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
| | - YongHao Yu
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
| | - Xin Wang
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
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Zhu H, Xu J, Li K, Chen M, Wu Y, Zhang X, Chen H, Chen D. DOCK8 inhibits the immune function of neutrophils in sepsis by regulating aerobic glycolysis. Immun Inflamm Dis 2023; 11:e965. [PMID: 37647440 PMCID: PMC10461417 DOI: 10.1002/iid3.965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/05/2023] [Accepted: 07/20/2023] [Indexed: 09/01/2023] Open
Abstract
INTRODUCTION This study endeavored to investigate the role of DOCK8 in modulating the immune function triggered by sepsis. METHODS Expression of DOCK8 in the whole blood of sepsis patients and its enrichment pathways were assayed by bioinformatics. Pearson analysis was used to predict the relationship between glycolytic signaling pathway and its relevance to neutrophil function in sepsis. A sepsis mouse model was then built by performing cecal ligation and puncture treatment on male mice. Neutrophils were isolated, and their purity was tested by flow cytometry. Neutrophils were then stimulated by lipopolysaccharide to build a sepsis cell model. Next, quantitative reverse transcription polymerase chain reaction and CCK-8 were applied to test the expression of DOCK8 and cell viability, western blot to assay the expression of HK-2, PKM2, and LDHA proteins, ELISA to measure the concentrations of TNF-α, IL-1β, and IL-6, Transwell to detect the chemotaxis of neutrophils and flow cytometry to detect the phagocytic activity of neutrophils. Finally, in different treatment groups, we used Seahorse XF 96 to analyze the extracellular acidification rate (ECAR) of sepsis cells and used enzyme-linked immunosorbent assay to detect the contents of pyruvic acid, lactic acid, and ATP in sepsis cells. RESULTS DOCK8 was downregulated in sepsis blood and activated neutrophils. Aerobic glycolysis was positively correlated with sepsis. Activated neutrophils promoted the expression of inflammatory factors TNF-α, IL-1β, and IL-6. Low expression of DOCK8 facilitated the proliferation, chemotaxis, and phagocytic activity of sepsis cells and promoted the expression of inflammatory factors. Bioinformatics analysis revealed that DOCK8 was enriched in the glycolytic signaling pathway. Low expression of DOCK8 induced ECAR, promoted the protein expression of HK-2, PKM2 and LDHA, and favored the increase of pyruvate, lactate, and ATP contents. While 2-DG treatment could restore these effects. CONCLUSION DOCK8 may inhibit sepsis-induced neutrophil immune function by regulating aerobic glycolysis and causing excessive inflammation, which helps to explore potential therapeutic targets.
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Affiliation(s)
- Hongjun Zhu
- Clinical Laboratory, The Sixth Affiliated Hospital of Wenzhou Medical UniversityLishui People's HospitalLishui CityChina
| | - Junlong Xu
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Wenzhou Medical UniversityLishui People's HospitalLishui CityChina
| | - Ke Li
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Wenzhou Medical UniversityLishui People's HospitalLishui CityChina
| | - Miaomiao Chen
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Wenzhou Medical UniversityLishui People's HospitalLishui CityChina
| | - Yueming Wu
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Wenzhou Medical UniversityLishui People's HospitalLishui CityChina
| | - Xian Zhang
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Wenzhou Medical UniversityLishui People's HospitalLishui CityChina
| | - Hua Chen
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Wenzhou Medical UniversityLishui People's HospitalLishui CityChina
| | - Deyuan Chen
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Wenzhou Medical UniversityLishui People's HospitalLishui CityChina
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Han J, Wu J, Liu H, Huang Y, Ju W, Xing Y, Zhang X, Yang J. Inhibition of pyroptosis and apoptosis by capsaicin protects against LPS-induced acute kidney injury through TRPV1/UCP2 axis in vitro. Open Life Sci 2023; 18:20220647. [PMID: 37528882 PMCID: PMC10389676 DOI: 10.1515/biol-2022-0647] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 05/11/2023] [Accepted: 05/31/2023] [Indexed: 08/03/2023] Open
Abstract
Acute kidney injury is a fatal disease characterized by a rapid deterioration of kidney function. Capsaicin (trans-8-methyl-N-vanillyl-6-nonenamide) is a natural product extracted from Capsicum. The aim of this study was to explore the protective effect of capsaicin on inflammation, apoptosis, and mitochondrial dysfunction in an in vitro model of acute kidney injury. Lipopolysaccharide (LPS)-induced acute kidney injury model was established in HK-2 cells to investigate the protective effect of capsaicin. Cell viability was assessed using CCK-8 assay, and protein expression was detected using western blot and immunofluorescence assay. Intracellular reactive oxygen species (ROS) level and mitochondrial membrane potential were analyzed by flow cytometry. Cell apoptosis was detected by propidium iodide staining. The results showed that capsaicin ameliorated LPS-induced cytotoxicity in vitro and attenuated the release of interleukin (IL)-1β and IL-18. Intriguingly, genipin abolished the protective effect of capsaicin. Molecularly, capsaicin activated transient receptor potential cation channel subfamily V member 1 -mitochondrial uncoupling protein 2 axis and inhibited caspase-1-mediated pyroptosis. In addition, capsaicin alleviated LPS-induced ROS production and mitochondrial membrane potential disruption and inhibited apoptosis. These findings suggest that capsaicin shows a protective effect in in vitro acute kidney injury model.
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Affiliation(s)
- Jinrun Han
- The Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, Hubei, China
| | - Jinhao Wu
- The Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, Hubei, China
| | - Hong Liu
- The Intensive Care Unit, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yu Huang
- The Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wen Ju
- The Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yifei Xing
- The Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaoping Zhang
- The Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jun Yang
- The Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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An S, Yao Y, Hu H, Wu J, Li J, Li L, Wu J, Sun M, Deng Z, Zhang Y, Gong S, Huang Q, Chen Z, Zeng Z. PDHA1 hyperacetylation-mediated lactate overproduction promotes sepsis-induced acute kidney injury via Fis1 lactylation. Cell Death Dis 2023; 14:457. [PMID: 37479690 PMCID: PMC10362039 DOI: 10.1038/s41419-023-05952-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 06/24/2023] [Accepted: 07/05/2023] [Indexed: 07/23/2023]
Abstract
The increase of lactate is an independent risk factor for patients with sepsis-induced acute kidney injury (SAKI). However, whether elevated lactate directly promotes SAKI and its mechanism remain unclear. Here we revealed that downregulation of the deacetylase Sirtuin 3 (SIRT3) mediated the hyperacetylation and inactivation of pyruvate dehydrogenase E1 component subunit alpha (PDHA1), resulting in lactate overproduction in renal tubular epithelial cells. We then found that the incidence of SAKI and renal replacement therapy (RRT) in septic patients with blood lactate ≥ 4 mmol/L was increased significantly, compared with those in septic patients with blood lactate < 2 mmol/L. Further in vitro and in vivo experiments showed that additional lactate administration could directly promote SAKI. Mechanistically, lactate mediated the lactylation of mitochondrial fission 1 protein (Fis1) lysine 20 (Fis1 K20la). The increase in Fis1 K20la promoted excessive mitochondrial fission and subsequently induced ATP depletion, mitochondrial reactive oxygen species (mtROS) overproduction, and mitochondrial apoptosis. In contrast, PDHA1 activation with sodium dichloroacetate (DCA) or SIRT3 overexpression decreased lactate levels and Fis1 K20la, thereby alleviating SAKI. In conclusion, our results show that PDHA1 hyperacetylation and inactivation enhance lactate overproduction, which mediates Fis1 lactylation and exacerbates SAKI. Reducing lactate levels and Fis1 lactylation attenuate SAKI.
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Affiliation(s)
- Sheng An
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yi Yao
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Hongbin Hu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Junjie Wu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jiaxin Li
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Lulan Li
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jie Wu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Maomao Sun
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhiya Deng
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yaoyuan Zhang
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Shenhai Gong
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Qiaobing Huang
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhongqing Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Zhenhua Zeng
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
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Dong Y, Han X, Yang Y, Shi H. miR-506-3p induces autophagy of renal tubular epithelial cells in sepsis through targeting PI3K pathway. Aging (Albany NY) 2023; 15:204759. [PMID: 37285838 DOI: 10.18632/aging.204759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 05/09/2023] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To explore the effect of micro ribonucleic acid (miR)-506-3p on autophagy of renal tubular epithelial cells in sepsis and its mechanism. METHODS It was found through bioinformatics analysis that phosphatidylinositol 3-kinase catalytic subunit alpha (PIK3CA) was expressed at a low level in sepsis, and miR-506-3p had a targeted regulatory effect on PIK3CA. 40 8-week-old male C57BL/6 mice were randomly divided into control miR-506-3p NC group, control miR-506-3p OE group, sepsis miR-506-3p NC group, sepsis miR-506-3p OE group and sepsis miR-506-3p KD group. The pathological changes in kidney tissues of mice in each group were observed by hematoxylin-eosin (HE) staining and TUNEL staining, and mitochondria and autophagosomes were visualized by transmission electron microscopy. CCK8 assay was performed to detect the effect of miR-506-3p on the proliferation capacity of renal tubular epithelial cells. The changes in the expression of PI3K-Akt pathway proteins, mTOR and autophagy proteins were tested by Western blotting. RESULTS The injury and apoptotic positive cells were suppressed and decreased in miR-506-3p OE mice vs. NC group. miR-506-3p could increase the number of mitochondria and autophagosomes in kidney tissues. After introduction of exogenous miR-506-3p OE into renal tubular epithelial cells, the expressions of PI3K pathway proteins were significantly inhibited, while the expressions of autophagy proteins were significantly enhanced. After 740Y-P was added, the expressions of associated proteins had no significant changes in each group. CONCLUSION Overexpression of miR-506-3p can enhance the autophagy of renal tubular epithelial cells in sepsis through inhibiting the PI3K signaling pathway.
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Affiliation(s)
- Yun Dong
- Department of Critical Care Medicine, Xingtai People’s Hospital, Xingtai 054000, Hebei, China
| | - Xiaorui Han
- Department of Gynaecology and Obstetrics, Xingtai People’s Hospital, Xingtai 054000, Hebei, China
| | - Yong Yang
- Department of Traumatic Orthopedics, Xingtai People’s Hospital, Xingtai 054000, Hebei, China
| | - Hui Shi
- Department of Critical Care Medicine, Xingtai People’s Hospital, Xingtai 054000, Hebei, China
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Zhang Y, Zhang Y, Lei Y, Wu J, Kang Y, Zheng S, Shao L. MDM2 upregulation induces mitophagy deficiency via Mic60 ubiquitination in fetal microglial inflammation and consequently neuronal DNA damage caused by exposure to ZnO-NPs during pregnancy. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131750. [PMID: 37315416 DOI: 10.1016/j.jhazmat.2023.131750] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/15/2023] [Accepted: 05/29/2023] [Indexed: 06/16/2023]
Abstract
During pregnancy, the human body is quite vulnerable to external stimuli. Zinc oxide nanoparticles (ZnO-NPs) are widely used in daily life, and they enter the human body via environmental or biomedical exposure, thus having potential risks. Although accumulating studies have demonstrated the toxic effects of ZnO-NPs, few studies have addressed the effect of prenatal ZnO-NP exposure on fetal brain tissue development. Here, we systematically studied ZnO-NP-induced fetal brain damage and the underlying mechanism. Using in vivo and in vitro assays, we found that ZnO-NPs could cross the underdeveloped bloodbrain barrier and enter fetal brain tissue, where they could be endocytosed by microglia. ZnO-NP exposure impaired mitochondrial function and induced autophagosome overaccumulation by downregulation of Mic60, thus inducing microglial inflammation. Mechanistically, ZnO-NPs increased Mic60 ubiquitination by activating MDM2, resulting in imbalanced mitochondrial homeostasis. Inhibition of Mic60 ubiquitination by MDM2 silencing significantly attenuated the mitochondrial damage induced by ZnO-NPs, thereby preventing autophagosome overaccumulation and reducing ZnO-NP-mediated inflammation and neuronal DNA damage. Our results demonstrate that ZnO-NPs are likely to disrupt mitochondrial homeostasis, inducing abnormal autophagic flux and microglial inflammation and secondary neuronal damage in the fetus. We hope the information provided in our study will improve the understanding of the effects of prenatal ZnO-NP exposure on fetal brain tissue development and draw more attention to the daily use of and therapeutic exposure to ZnO-NPs among pregnant women.
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Affiliation(s)
- Yanli Zhang
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou 510515, China
| | - Yulin Zhang
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China
| | - Ye Lei
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing 100853 China
| | - Junrong Wu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China
| | - Yiyuan Kang
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China
| | - Shuo Zheng
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China
| | - Longquan Shao
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou 510515, China.
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Zhao S, Liao J, Shen M, Li X, Wu M. Epigenetic dysregulation of autophagy in sepsis-induced acute kidney injury: the underlying mechanisms for renoprotection. Front Immunol 2023; 14:1180866. [PMID: 37215112 PMCID: PMC10196246 DOI: 10.3389/fimmu.2023.1180866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/19/2023] [Indexed: 05/24/2023] Open
Abstract
Sepsis-induced acute kidney injury (SI-AKI), a common critically ill, represents one of the leading causes of global death. Emerging evidence reveals autophagy as a pivotal modulator of SI-AKI. Autophagy affects the cellular processes of renal lesions, including cell death, inflammation, and immune responses. Herein, we conducted a systematic and comprehensive review on the topic of the proposed roles of autophagy in SI-AKI. Forty-one relevant studies were finally included and further summarized and analyzed. This review revealed that a majority of included studies (24/41, 58.5%) showed an elevation of the autophagy level during SI-AKI, while 22% and 19.5% of the included studies reported an inhibition and an elevation at the early stage but a declination of renal autophagy in SI-AKI, respectively. Multiple intracellular signaling molecules and pathways targeting autophagy (e.g. mTOR, non-coding RNA, Sirtuins family, mitophagy, AMPK, ROS, NF-Kb, and Parkin) involved in the process of SI-AKI, exerting multiple biological effects on the kidney. Multiple treatment modalities (e.g. small molecule inhibitors, temsirolimus, rapamycin, polydatin, ascorbate, recombinant human erythropoietin, stem cells, Procyanidin B2, and dexmedetomidine) have been found to improve renal function, which may be attributed to the elevation of the autophagy level in SI-AKI. Though the exact roles of autophagy in SI-AKI have not been well elucidated, it may be implicated in preventing SI-AKI through various molecular pathways. Targeting the autophagy-associated proteins and pathways may hint towards a new prospective in the treatment of critically ill patients with SI-AKI, but more preclinical studies are still warranted to validate this hypothesis.
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Affiliation(s)
- Shankun Zhao
- Department of Urology, Taizhou Central Hospital (Taizhou University Hospital), Taizho, Zhejiang, China
| | - Jian Liao
- Department of Nephrology, Jiaxing Hospital of Traditional Chinese Medicine, Jiaxing, Zhejiang, China
| | - Maolei Shen
- Department of Urology, Taizhou Central Hospital (Taizhou University Hospital), Taizho, Zhejiang, China
| | - Xin Li
- Department of Urology, Taizhou Central Hospital (Taizhou University Hospital), Taizho, Zhejiang, China
| | - Mei Wu
- Educational Administration Department, Chongqing University Cancer Hospital, Chongqing, China
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Darshi M, Tumova J, Saliba A, Kim J, Baek J, Pennathur S, Sharma K. Crabtree effect in kidney proximal tubule cells via late-stage glycolytic intermediates. iScience 2023; 26:106462. [PMID: 37091239 PMCID: PMC10119590 DOI: 10.1016/j.isci.2023.106462] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/17/2023] [Accepted: 03/17/2023] [Indexed: 04/25/2023] Open
Abstract
The Crabtree effect is defined as a rapid glucose-induced repression of mitochondrial oxidative metabolism and has been described in yeasts and tumor cells. Using plate-based respirometry, we identified the Crabtree effect in normal (non-tumor) kidney proximal tubule epithelial cells (PTEC) but not in other kidney cells (podocytes or mesangial cells) or mammalian cells (C2C12 myoblasts). Glucose-induced repression of respiration was prevented by reducing glycolysis at the proximal step with 2-deoxyglucose and partially reversed by pyruvate. The late-stage glycolytic intermediates glyceraldehyde 3-phosphate, 3-phosphoglycerate, and phosphoenolpyruvate, but not the early-stage glycolytic intermediates or lactate, inhibited respiration in permeabilized PTEC and kidney cortex mitochondria, mimicking the Crabtree effect. Studies in diabetic mice indicated a pattern of increased late-stage glycolytic intermediates consistent with a similar pattern occurring in vivo. Our results show the unique presence of the Crabtree effect in kidney PTEC and identify the major mediators of this effect.
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Affiliation(s)
- Manjula Darshi
- Division of Nephrology, Department of Medicine, Center for Precision Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Jana Tumova
- Division of Nephrology, Department of Medicine, Center for Precision Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
- Department of Pathophysiology, Faculty of Medicine in Pilsen, Charles University, 323 00 Pilsen, Czech Republic
| | - Afaf Saliba
- Division of Nephrology, Department of Medicine, Center for Precision Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Jiwan Kim
- Division of Nephrology, Department of Medicine, Center for Precision Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
- Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - Judy Baek
- Department of Internal Medicine-Nephrology and Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Subramaniam Pennathur
- Department of Internal Medicine-Nephrology and Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Kumar Sharma
- Division of Nephrology, Department of Medicine, Center for Precision Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
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Zou GP, Wang T, Xiao JX, Wang XY, Jiang LP, Tou FF, Chen ZP, Qu XH, Han XJ. Lactate protects against oxidative stress-induced retinal degeneration by activating autophagy. Free Radic Biol Med 2023; 194:209-219. [PMID: 36493984 DOI: 10.1016/j.freeradbiomed.2022.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/02/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Age-related macular degeneration is a common cause of blindless among the aged, which can mainly be attributed to oxidative stress and dysregulated autophagy in retinal pigment epithelium cells. Lactate was reported to act as a signaling molecule and exerted beneficial effect against oxidative stress. This study aims to investigate the protective effect of lactate against oxidative stress-induced retinal degeneration. Here, H2O2-induced oxidative stress cell model and sodium iodate-induced mice retinal degeneration model were established. It was found that H2O2 inhibited cell viability in ARPE-19 cells and sodium iodate induced deterioration of retinal pigment epithelium as well as apoptosis in retina. Pretreatment with lactate alleviated oxidative stress-induced cell death and retinal degeneration. Molecularly, lactate activated autophagy by up-regulating the ratio of LC3II/I, increased formation of LC3 puncta and autophagic vacuole. Further, lactate prevented H2O2-induced mitochondrial fission and maintained mitochondrial function by alleviating H2O2-induced mitochondrial membrane potential disruption and intracellular ROS generation. In contrast, application of 3-methyladenine, an inhibitor of autophagy, effectively weakened the protective effect of lactate against oxidative stress in vivo and in vitro. Taken together, all data in this study indicate that lactate protects against oxidative stress-induced retinal degeneration and preserves mitochondrial function by activating autophagy.
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Affiliation(s)
- Guang-Ping Zou
- Institute of Geriatrics, Jiangxi Provincial People's Hospital & The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330006, PR China; Research Institute of Ophthalmology and Visual Sciences, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Tao Wang
- Institute of Geriatrics, Jiangxi Provincial People's Hospital & The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330006, PR China
| | - Jin-Xing Xiao
- Department of Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Xiao-Yu Wang
- Institute of Geriatrics, Jiangxi Provincial People's Hospital & The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330006, PR China
| | - Li-Ping Jiang
- Department of Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Fang-Fang Tou
- Institute of Geriatrics, Jiangxi Provincial People's Hospital & The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330006, PR China
| | - Zhi-Ping Chen
- Department of Critical Care Medicine, Jiangxi Provincial People's Hospital & The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330006, PR China
| | - Xin-Hui Qu
- Institute of Geriatrics, Jiangxi Provincial People's Hospital & The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330006, PR China; The Second Department of Neurology, Jiangxi Provincial People's Hospital & The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330006, PR China.
| | - Xiao-Jian Han
- Institute of Geriatrics, Jiangxi Provincial People's Hospital & The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330006, PR China; Research Institute of Ophthalmology and Visual Sciences, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, 330006, PR China; The Second Department of Neurology, Jiangxi Provincial People's Hospital & The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330006, PR China.
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Dai Q, Zhang H, Tang S, Wu X, Wang J, Yi B, Liu J, Li Z, Liao Q, Li A, Liu Y, Zhang W. Vitamin D- VDR (vitamin D receptor) alleviates glucose metabolism reprogramming in lipopolysaccharide-induced acute kidney injury. Front Physiol 2023; 14:1083643. [PMID: 36909229 PMCID: PMC9998528 DOI: 10.3389/fphys.2023.1083643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 02/13/2023] [Indexed: 03/14/2023] Open
Abstract
Background: Our previous study showed that vitamin D (VD)-vitamin D receptor (VDR) plays a nephroprotective role in lipopolysaccharide (LPS)-induced acute kidney injury (AKI). Recently, glucose metabolism reprogramming was reported to be involved in the pathogenesis of AKI. Objective: To investigate the role of VD-VDR in glucose metabolism reprogramming in LPS-induced AKI. Methods: We established a model of LPS-induced AKI in VDR knockout (VDR-KO) mice, renal proximal tubular-specific VDR-overexpressing (VDR-OE) mice and wild-type C57BL/6 mice. In vitro, human proximal tubular epithelial cells (HK-2 cells), VDR knockout and VDR overexpression HK-2 cell lines were used. Results: Paricalcitol (an active vitamin D analog) or VDR-OE reduced lactate concentration, hexokinase activity and PDHA1 phosphorylation (a key step in inhibiting aerobic oxidation) and simultaneously ameliorated renal inflammation, apoptosis and kidney injury in LPS-induced AKI mice, which were more severe in VDR-KO mice. In in vitro experiments, glucose metabolism reprogramming, inflammation and apoptosis induced by LPS were alleviated by treatment with paricalcitol or dichloroacetate (DCA, an inhibitor of p-PDHA1). Moreover, paricalcitol activated the phosphorylation of AMP-activated protein kinase (AMPK), and an AMPK inhibitor partially abolished the protective effect of paricalcitol in LPS-treated HK-2 cells. Conclusion: VD-VDR alleviated LPS-induced metabolic reprogramming in the kidneys of AKI mice, which may be attributed to the inactivation of PDHA1 phosphorylation via the AMPK pathway.
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Affiliation(s)
- Qing Dai
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Hao Zhang
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Shiqi Tang
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Xueqin Wu
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Jianwen Wang
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Bin Yi
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Jishi Liu
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhi Li
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Qin Liao
- Department of Anesthesiology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Aimei Li
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Yan Liu
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Wei Zhang
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
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Inhibition of PFKFB Preserves Intestinal Barrier Function in Sepsis by Inhibiting NLRP3/GSDMD. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8704016. [PMID: 36589684 PMCID: PMC9803577 DOI: 10.1155/2022/8704016] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022]
Abstract
Intestinal barrier dysfunction is associated with the occurrence and development of sepsis. Further, aerobic glycolysis plays an essential role in inflammation and cell death. This study is aimed at investigating the protective effect and mechanism of PFKFB3 inhibition on intestinal barrier dysfunction in sepsis mice. Sepsis mouse models were established by cecal ligation and puncture (CLP) in wild-type mice and Gsdmd-/- mice. The results showed that the expression of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) in the small intestines was significantly upregulated in sepsis. 3-(3-Pyridinyl)-1-(4-pyridinyl)-2-propen-1-one (3PO), the specific inhibitor of PFKFB3, and Gsdmd gene knockout significantly inhibited the inflammatory response and cell death caused by sepsis, thus alleviating intestinal damage and barrier dysfunction. 3PO was also shown to significantly inhibit oxidative stress and NLRP3/caspase-1/GSDMD-dependent cell pyroptosis in the small intestines. The in vitro studies revealed that 3PO reduced NLRP3/caspase-1/GSDMD-dependent cell pyroptosis by inhibiting ROS. Taken together, our results suggest that PFKFB3 is involved in inflammation, oxidative stress, and pyroptosis during sepsis and enhances intestinal damage, which may provide important clues about the potential targets to be exploited in this highly lethal disease.
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Dey S, Murmu N, Mondal T, Saha I, Chatterjee S, Manna R, Haldar S, Dash SK, Sarkar TR, Giri B. Multifaceted entrancing role of glucose and its analogue, 2-deoxy-D-glucose in cancer cell proliferation, inflammation, and virus infection. Biomed Pharmacother 2022; 156:113801. [DOI: 10.1016/j.biopha.2022.113801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/29/2022] [Accepted: 10/02/2022] [Indexed: 11/30/2022] Open
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41
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Jian Y, Yang Y, Cheng L, Yang X, Liu H, Li W, Wan Y, Yang D. Sirt3 mitigates LPS-induced mitochondrial damage in renal tubular epithelial cells by deacetylating YME1L1. Cell Prolif 2022; 56:e13362. [PMID: 36433732 PMCID: PMC9890524 DOI: 10.1111/cpr.13362] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/21/2022] [Accepted: 11/01/2022] [Indexed: 11/28/2022] Open
Abstract
Acute kidney injury (AKI) is often secondary to sepsis. Increasing evidence suggests that mitochondrial dysfunction contributes to the pathological process of AKI. In this study, we aimed to examine the regulatory roles of Sirt3 in Lipopolysaccharide (LPS)-induced mitochondrial damage in renal tubular epithelial cells (TECs). Sirt3 knockout mice were intraperitoneally injected with LPS, and cultured TECs were stimulated with LPS to evaluate the effects of Sirt3 on mitochondrial structure and function in TECs. Electron microscopy was used to assess mitochondrial morphology. Immunofluorescence staining was performed to detect protein expression and examine mitochondrial morphology. Western blotting was used to quantify protein expression. We observed that LPS increased apoptosis, induced disturbances in mitochondrial function and dynamics, and downregulated Sirt3 expression in a sepsis-induced AKI mouse model and human proximal tubular (HK-2) cells in vitro. Sirt3 deficiency further exacerbated LPS-induced renal pathological damage, apoptosis and disturbances in mitochondrial function and dynamics. On the contrary, Sirt3 overexpression in HK-2 cells alleviated these lesions. Functional studies revealed that Sirt3 overexpression alleviated LPS-induced mitochondrial damage and apoptosis in TECs by promoting OPA1-mediated mitochondrial fusion through the deacetylation of i-AAA protease (YME1L1), an upstream regulatory molecule of OPA1. Our study has identified Sirt3 as a vital factor that protects against LPS-induced mitochondrial damage and apoptosis in TECs via the YME1L1-OPA1 signaling pathway.
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Affiliation(s)
- Yonghong Jian
- Department of NephrologyRenmin Hospital of Wuhan UniversityWuhanChina,Nephrology and Urology Research Institute of Wuhan UniversityWuhanHubeiChina
| | - Yifei Yang
- Department of NephrologyRenmin Hospital of Wuhan UniversityWuhanChina,Nephrology and Urology Research Institute of Wuhan UniversityWuhanHubeiChina
| | - Lingli Cheng
- Department of NephrologyRenmin Hospital of Wuhan UniversityWuhanChina,Nephrology and Urology Research Institute of Wuhan UniversityWuhanHubeiChina
| | - Xueyan Yang
- Department of NephrologyRenmin Hospital of Wuhan UniversityWuhanChina,Nephrology and Urology Research Institute of Wuhan UniversityWuhanHubeiChina
| | - Hongyan Liu
- Department of NephrologyRenmin Hospital of Wuhan UniversityWuhanChina,Nephrology and Urology Research Institute of Wuhan UniversityWuhanHubeiChina
| | - Wei Li
- Department of NephrologyRenmin Hospital of Wuhan UniversityWuhanChina,Nephrology and Urology Research Institute of Wuhan UniversityWuhanHubeiChina
| | - Yuhan Wan
- Department of NephrologyRenmin Hospital of Wuhan UniversityWuhanChina,Nephrology and Urology Research Institute of Wuhan UniversityWuhanHubeiChina
| | - Dingping Yang
- Department of NephrologyRenmin Hospital of Wuhan UniversityWuhanChina,Nephrology and Urology Research Institute of Wuhan UniversityWuhanHubeiChina
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42
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Liu T, Yang L, Mao H, Ma F, Wang Y, Li S, Li P, Zhan Y. Sirtuins as novel pharmacological targets in podocyte injury and related glomerular diseases. Biomed Pharmacother 2022; 155:113620. [PMID: 36122519 DOI: 10.1016/j.biopha.2022.113620] [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: 06/03/2022] [Revised: 08/10/2022] [Accepted: 08/27/2022] [Indexed: 11/29/2022] Open
Abstract
Podocyte injury is a major cause of proteinuria in kidney diseases, and persistent loss of podocytes leads to rapid irreversible progression of kidney disease. Sirtuins, a class of nicotinamide adenine dinucleotide-dependent deacetylases, can promote DNA repair, modify transcription factors, and regulate the cell cycle. Additionally, sirtuins play a critical role in renoprotection, particularly against podocyte injury. They also have pleiotropic protective effects on podocyte injury-related glomerular diseases, such as improving the immune inflammatory status and oxidative stress levels, maintaining mitochondrial homeostasis, enhancing autophagy, and regulating lipid metabolism. Sirtuins deficiency causes podocyte injury in different glomerular diseases. Studies using podocyte sirtuin-specific knockout and transgenic models corroborate this conclusion. Of note, sirtuin activators have protective effects in different podocyte injury-related glomerular diseases, including diabetic kidney disease, focal segmental glomerulosclerosis, membranous nephropathy, IgA nephropathy, and lupus nephritis. These findings suggest that sirtuins are promising therapeutic targets for preventing podocyte injury. This review provides an overview of recent advances in the role of sirtuins in kidney diseases, especially their role in podocyte injury, and summarizes the possible rationale for sirtuins as targets for pharmacological intervention in podocyte injury-related glomerular diseases.
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Affiliation(s)
- Tongtong Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liping Yang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Huimin Mao
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fang Ma
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuyang Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shen Li
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ping Li
- China-Japan Friendship Hospital, Institute of Medical Science, Beijing, China.
| | - Yongli Zhan
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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Chan WH, Hsu YJ, Cheng CP, Chou KN, Chen CL, Huang SM, Kan WC, Chiu YL. Assessing the Global Impact on the Mouse Kidney After Traumatic Brain Injury: A Transcriptomic Study. J Inflamm Res 2022; 15:4833-4851. [PMID: 36042866 PMCID: PMC9420446 DOI: 10.2147/jir.s375088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/19/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose In this study, we use animal models combined with bioinformatics strategies to investigate the potential changes in overall renal transcriptional expression after traumatic brain injury. Methods Microarray analysis was performed after kidney acquisition using unilateral controlled cortical impact as the primary mouse TBI model. Multi-oriented gene set enrichment analysis was performed for differentially expressed genes. Results The results showed that TBI affected the gene set associated with mitochondria function in kidney cells, and a negative enrichment of gene sets associated with immune cell migration and epidermal development was also observed. Analysis of the disease phenotype gene set revealed that differential expression of mitochondria-related genes was associated with lactate metabolism. Alternatively, activation and adhesion of immune cells associated with the complement system may promote autoinflammation in kidney tissue. The simulated immune cell infiltration analysis showed an increase in the proportion of activated memory CD4 T cells and a decrease in the proportion of resting memory CD4 T cells, suggesting that activated memory CD4 T cell infiltration may be involved in the inflammation of renal tissue and cause damage to renal cells, such as principal cells, mesangial cells and loops of Henle cells. Conclusion This study is the first to reveal the effects of brain trauma on the kidney. TBI may affect the expression of mitochondria function-related gene sets in renal cells by increasing lactate. It may also affect renal mesangial cells by inducing increased infiltration of immune cells through mechanisms related to complement system activation or autoimmune antibodies.
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Affiliation(s)
- Wei-Hung Chan
- Department of Anesthesiology, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan, Republic of China.,Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei City, Taiwan, Republic of China
| | - Yu-Juei Hsu
- Division of Nephrology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan, Republic of China
| | - Chiao-Pei Cheng
- Department of Anesthesiology, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan, Republic of China
| | - Kuan-Nien Chou
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei City, Taiwan, Republic of China.,Department of Neurosurgery, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan, Republic of China
| | - Chin-Li Chen
- Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan, Republic of China
| | - Shih-Ming Huang
- Department of Biochemistry, National Defense Medical Center, Taipei City, Taiwan, Republic of China
| | - Wei-Chih Kan
- Department of Nephrology, Department of Internal Medicine, Chi-Mei Medical Center, Tainan City, Taiwan, Republic of China.,Department of Biological Science and Technology, Chung Hwa University of Medical Technology, Tainan City, Taiwan, Republic of China
| | - Yi-Lin Chiu
- Department of Biochemistry, National Defense Medical Center, Taipei City, Taiwan, Republic of China
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Cui Y, Guo H, Zhang Q, Fang J, Xie Y, Chen S, Ma X, Gou L, Cui H, Geng Y, Ye G, Zhong Z, Ren Z, Wang Y, Deng J, Yu S, Cao S, Wang Z, Zuo Z. The combination of high glucose and LPS induces autophagy in bovine kidney epithelial cells via the Notch3/mTOR signaling pathway. BMC Vet Res 2022; 18:307. [PMID: 35953831 PMCID: PMC9367163 DOI: 10.1186/s12917-022-03395-1] [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: 02/21/2022] [Accepted: 07/18/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Aside respiratory diseases, beef cattle may also suffer from serious kidney diseases after transportation. Hyperglycemia and gram-negative bacterial infection may be the main reasons why bovine is prone to severe kidney disease during transportation stress, however, the precise mechanism is still unclear. The purpose of the current study is to explore whether the combined treatment of high glucose (HG) and lipopolysaccharide (LPS) could induce madin-darby bovine kidney (MDBK) cells injury and autophagy, as well as investigate the potential molecular mechanisms involved. RESULTS As we discovered, the combined effect of HG and LPS decreased MDBK cells viability. And, HG and LPS combination also induced autophagy in MDBK cells, which was characterized by increasing the expression of LC3-II/I and Beclin1 and decreasing p62 expression. LC3 fluorescence signal formation was also significantly increased by HG and LPS combination treatment. Furthermore, we measured whether the mammalian target of rapamycin (mTOR) and the Notch3 signaling pathways were involved in HG and LPS-induced autophagy. The results showed that the combination of HG and LPS significantly increased the protein expression of Notch3 and decreased protein expression of p-mTOR, indicating that Notch3 and mTOR signaling pathways were activated. However, co-treatment with the Notch3 inhibitor (DAPT) could reverse the induction of autophagy, and increased the protein expression of p-mTOR. CONCLUSIONS This study demonstrated that the combination effect of HG and LPS could induce autophagy in MDBK cells, and the Notch3/mTOR signaling pathway was involved in HG and LPS-induced autophagy.
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Affiliation(s)
- Yaocheng Cui
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Hongrui Guo
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Qin Zhang
- Chengdu Customs of the People's Republic of China, Chengdu, 610095, Sichuan, China
| | - Jing Fang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yue Xie
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Shiyi Chen
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xiaoping Ma
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Liping Gou
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Hengmin Cui
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yi Geng
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Gang Ye
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Zhijun Zhong
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Zhihua Ren
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Ya Wang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Junliang Deng
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Shuming Yu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Suizhong Cao
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Zhisheng Wang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
| | - Zhicai Zuo
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
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Poole J, Ray D. The Role of Circadian Clock Genes in Critical Illness: The Potential Role of Translational Clock Gene Therapies for Targeting Inflammation, Mitochondrial Function, and Muscle Mass in Intensive Care. J Biol Rhythms 2022; 37:385-402. [PMID: 35880253 PMCID: PMC9326790 DOI: 10.1177/07487304221092727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The Earth's 24-h planetary rotation, with predictable light and heat cycles, has driven profound evolutionary adaptation, with prominent impacts on physiological mechanisms important for surviving critical illness. Pathways of interest include inflammation, mitochondrial function, energy metabolism, hypoxic signaling, apoptosis, and defenses against reactive oxygen species. Regulation of these by the cellular circadian clock (BMAL-1 and its network) has an important influence on pulmonary inflammation; ventilator-associated lung injury; septic shock; brain injury, including vasospasm; and overall mortality in both animals and humans. Whether it is cytokines, the inflammasome, or mitochondrial biogenesis, circadian medicine represents exciting opportunities for translational therapy in intensive care, which is currently lacking. Circadian medicine also represents a link to metabolic determinants of outcome, such as diabetes and cardiovascular disease. More than ever, we are appreciating the problem of circadian desynchrony in intensive care. This review explores the rationale and evidence for the importance of the circadian clock in surviving critical illness.
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Affiliation(s)
- Joanna Poole
- Anaesthetics and Critical Care, Gloucestershire Royal Hospital, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK
| | - David Ray
- NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK.,Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
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46
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Liu J, Zhou G, Wang X, Liu D. Metabolic reprogramming consequences of sepsis: adaptations and contradictions. Cell Mol Life Sci 2022; 79:456. [PMID: 35904600 PMCID: PMC9336160 DOI: 10.1007/s00018-022-04490-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 12/19/2022]
Abstract
During sepsis, the importance of alterations in cell metabolism is underappreciated. The cellular metabolism, which has a variable metabolic profile in different cells and disease stages, is largely responsible for the immune imbalance and organ failure associated with sepsis. Metabolic reprogramming, in which glycolysis replaces OXPHOS as the main energy-producing pathway, is both a requirement for immune cell activation and a cause of immunosuppression. Meanwhile, the metabolites produced by OXPHOS and glycolysis can act as signaling molecules to control the immune response during sepsis. Sepsis-induced "energy shortage" leads to stagnated cell function and even organ dysfunction. Metabolic reprogramming can alleviate the energy crisis to some extent, enhance host tolerance to maintain cell survival functions, and ultimately increase the adaptation of cells during sepsis. However, a switch from glycolysis to OXPHOS is essential for restoring cell function. This review summarized the crosstalk between metabolic reprogramming and immune cell activity as well as organ function during sepsis, discussed the benefits and drawbacks of metabolic reprogramming to show the contradictions of metabolic reprogramming during sepsis, and assessed the feasibility of treating sepsis through targeted metabolism. Using metabolic reprogramming to achieve metabolic homeostasis could be a viable therapy option for sepsis.
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Affiliation(s)
- Jingjing Liu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730 China
| | - Gaosheng Zhou
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730 China
| | - Xiaoting Wang
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730 China
| | - Dawei Liu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730 China
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47
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Yapryntseva MA, Maximchik PV, Zhivotovsky B, Gogvadze V. Mitochondrial sirtuin 3 and various cell death modalities. Front Cell Dev Biol 2022; 10:947357. [PMID: 35938164 PMCID: PMC9354933 DOI: 10.3389/fcell.2022.947357] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/05/2022] [Indexed: 11/13/2022] Open
Abstract
Sirtuin 3, a member of the mammalian sirtuin family of proteins, is involved in the regulation of multiple processes in cells. It is a major mitochondrial NAD+-dependent deacetylase with a broad range of functions, such as regulation of oxidative stress, reprogramming of tumor cell energy pathways, and metabolic homeostasis. One of the intriguing functions of sirtuin 3 is the regulation of mitochondrial outer membrane permeabilization, a key step in apoptosis initiation/progression. Moreover, sirtuin 3 is involved in the execution of various cell death modalities, which makes sirtuin 3 a possible regulator of crosstalk between them. This review is focused on the role of sirtuin 3 as a target for tumor cell elimination and how mitochondria and reactive oxygen species (ROS) are implicated in this process.
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Affiliation(s)
| | - Polina V. Maximchik
- Faculty of Basic Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Boris Zhivotovsky
- Faculty of Basic Medicine, Lomonosov Moscow State University, Moscow, Russia
- Karolinska Institutet, Institute of Environmental Medicine, Stockholm, Sweden
| | - Vladimir Gogvadze
- Faculty of Basic Medicine, Lomonosov Moscow State University, Moscow, Russia
- Karolinska Institutet, Institute of Environmental Medicine, Stockholm, Sweden
- *Correspondence: Vladimir Gogvadze,
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Kazmi I, Al-Abbasi FA, Afzal M, Nadeem MS, Altayb HN, Gupta G. Phosphodiesterase-4 Inhibitor Roflumilast-Mediated Protective Effect in Sepsis-Induced Late-Phase Event of Acute Kidney Injury: A Narrative Review. Pharmaceuticals (Basel) 2022; 15:ph15070899. [PMID: 35890197 PMCID: PMC9315747 DOI: 10.3390/ph15070899] [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: 05/31/2022] [Revised: 07/08/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022] Open
Abstract
Severe infections such as viral, bacterial, or fungal sepsis can cause an inflammatory response in the host, leading to organ failure and septic shock—phosphodiesterase-4 (PDE-4) inhibiting related agents from suppressing cyclic adenosine monophosphate (cAMP) degradation. Regulatory organisations have approved some substances in this category to reduce the risk of chronic obstructive pulmonary disease (COPD) exacerbations in patients with chronic bronchitis and a history of COPD exacerbations. Roflumilast has been shown to alleviate inflammatory responses, thus regulating airway inflammation. Additionally, roflumilast therapy dramatically enhanced B-cell lymphoma 2 (Bcl-2) expression, an anti-apoptotic marker lowered in septic animals. Previous research has indicated that roflumilast may help reverse sepsis-induced liver and lung harm, but whether it is also effective in reversing sepsis-induced renal impairment remains unknown. Therefore, this review determines whether roflumilast protects against renal dysfunction, inflammatory response, and apoptosis in sepsis-induced kidney damage. Additionally, we discussed the molecular mechanism through which roflumilast exerts its protective effect to uncover a possible treatment agent for sepsis-induced renal impairment.
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Affiliation(s)
- Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (F.A.A.-A.); (M.S.N.); (H.N.A.)
- Correspondence:
| | - Fahad A. Al-Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (F.A.A.-A.); (M.S.N.); (H.N.A.)
| | - Muhammad Afzal
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakakah 72341, Saudi Arabia;
| | - Muhammad Shahid Nadeem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (F.A.A.-A.); (M.S.N.); (H.N.A.)
| | - Hisham N. Altayb
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (F.A.A.-A.); (M.S.N.); (H.N.A.)
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, Jagatpura 302017, Jaipur, India;
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 602105, Tamil Nadu, India
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun 248007, Uttarakhand, India
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49
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Luo R, Li X, Wang D. Reprogramming Macrophage Metabolism and its Effect on NLRP3 Inflammasome Activation in Sepsis. Front Mol Biosci 2022; 9:917818. [PMID: 35847986 PMCID: PMC9276983 DOI: 10.3389/fmolb.2022.917818] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/09/2022] [Indexed: 12/29/2022] Open
Abstract
Sepsis, the most common life-threatening multi-organ dysfunction syndrome secondary to infection, lacks specific therapeutic strategy due to the limited understanding of underlying mechanisms. It is currently believed that inflammasomes play critical roles in the development of sepsis, among which NLRP3 inflammasome is involved to most extent. Recent studies have revealed that dramatic reprogramming of macrophage metabolism is commonly occurred in sepsis, and this dysregulation is closely related with the activation of NLRP3 inflammasome. In view of the fact that increasing evidence demonstrates the mechanism of metabolism reprogramming regulating NLRP3 activation in macrophages, the key enzymes and metabolites participated in this regulation should be clearer for better interpreting the relationship of NLRP3 inflammasome and sepsis. In this review, we thus summarized the detail mechanism of the metabolic reprogramming process and its important role in the NLRP3 inflammasome activation of macrophages in sepsis. This mechanism summarization will reveal the applicational potential of metabolic regulatory molecules in the treatment of sepsis.
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Affiliation(s)
- Ruiheng Luo
- Department of Hematology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xizhe Li
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Research Center for Pulmonary Nodules Precise Diagnosis & Treatment, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Dan Wang
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Dan Wang,
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Davidson JA, Robison J, Khailova L, Frank BS, Jaggers J, Ing RJ, Lawson S, Iguidbashian J, Ali E, Treece A, Soranno DE, Osorio-Lujan S, Klawitter J. Metabolomic profiling demonstrates evidence for kidney and urine metabolic dysregulation in a piglet model of cardiac surgery-induced acute kidney injury. Am J Physiol Renal Physiol 2022; 323:F20-F32. [PMID: 35532069 PMCID: PMC9236877 DOI: 10.1152/ajprenal.00039.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Acute kidney injury (AKI) is a common cause of morbidity after congenital heart disease surgery. Progress on diagnosis and therapy remains limited, however, in part due to poor mechanistic understanding and a lack of relevant translational models. Metabolomic approaches could help identify novel mechanisms of injury and potential therapeutic targets. In the present study, we used a piglet model of cardiopulmonary bypass with deep hypothermic circulatory arrest (CPB/DHCA) and targeted metabolic profiling of kidney tissue, urine, and serum to evaluate metabolic changes specific to animals with histological acute kidney injury. CPB/DHCA animals with acute kidney injury were compared with those without acute kidney injury and mechanically ventilated controls. Acute kidney injury occurred in 10 of 20 CPB/DHCA animals 4 h after CPB/DHCA and 0 of 7 control animals. Injured kidneys showed a distinct tissue metabolic profile compared with uninjured kidneys (R2 = 0.93, Q2 = 0.53), with evidence of dysregulated tryptophan and purine metabolism. Nine urine metabolites differed significantly in animals with acute kidney injury with a pattern suggestive of increased aerobic glycolysis. Dysregulated metabolites in kidney tissue and urine did not overlap. CPB/DHCA strongly affected the serum metabolic profile, with only one metabolite that differed significantly with acute kidney injury (pyroglutamic acid, a marker of oxidative stress). In conclusion, based on these findings, kidney tryptophan and purine metabolism are candidates for further mechanistic and therapeutic investigation. Urine biomarkers of aerobic glycolysis could help diagnose early acute kidney injury after CPB/DHCA and warrant further evaluation. The serum metabolites measured at this early time point did not strongly differentiate based on acute kidney injury. NEW & NOTEWORTHY This project explored the metabolic underpinnings of postoperative acute kidney injury (AKI) following pediatric cardiac surgery in a translationally relevant large animal model of cardiopulmonary bypass with deep hypothermic circulatory arrest. Here, we present novel evidence for dysregulated tryptophan catabolism and purine catabolism in kidney tissue and increased urinary glycolysis intermediates in animals who developed histological AKI. These pathways represent potential diagnostic and therapeutic targets for postoperative AKI in this high-risk population.
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Affiliation(s)
- Jesse A Davidson
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Justin Robison
- Department of Pediatrics, Washington University in St. Louis School of Medicine, St. Louis, United States
| | - Ludmila Khailova
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Benjamin S Frank
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - James Jaggers
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Richard J Ing
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Scott Lawson
- Heart Institute, Children's Hospital Colorado, Aurora, CO, United States
| | - John Iguidbashian
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Eiman Ali
- Heart Institute, Children's Hospital Colorado, Aurora, CO, United States
| | - Amy Treece
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Danielle E Soranno
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Suzanne Osorio-Lujan
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Jelena Klawitter
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
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