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Pei H, Qu J, Chen J, Zhao G, Lu Z. S100A9 as a Key Myocardial Injury Factor Interacting with ATP5 Exacerbates Mitochondrial Dysfunction and Oxidative Stress in Sepsis-Induced Cardiomyopathy. J Inflamm Res 2024; 17:4483-4503. [PMID: 39006491 PMCID: PMC11246037 DOI: 10.2147/jir.s457340] [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: 12/30/2023] [Accepted: 06/22/2024] [Indexed: 07/16/2024] Open
Abstract
Purpose Sepsis-induced cardiomyopathy (SICM) is a prevalent cardiac dysfunction caused by sepsis. Mitochondrial dysfunction is a crucial pathogenic factor associated with adverse cardiovascular adverse events; however, research on SICM remains insufficient. Methods To investigate the factors contributing to the pathological progression of SICM, we performed a comprehensive analysis of transcriptomic data from the GEO database using bioinformatics and machine learning techniques. CRISPR-Cas9 S100A9 knockout mice and primary cardiomyocytes were exposed to lipopolysaccharide to simulate SICM. Transcriptome analysis and mass spectrometry of primary cardiomyocytes were used to determine the potential pathogenic mechanisms of S100A9. The mitochondrial ultrastructure and mitochondrial membrane potential (MMP) were detected using transmission electron microscopy and flow cytometry, respectively. Pink1/Parkin and Drp1 proteins were detected using Western blotting to evaluate mitochondrial autophagy and division. The mtDNA and mRNA levels of mitochondrial transcription factors and synthases were evaluated using real-time polymerase chain reaction. Results Bioinformatics analysis identified 12 common differentially expressed genes, including SERPINA3N, LCN2, MS4A6D, LRG1, OSMR, SOCS3, FCGR2b, S100A9, S100A8, CASP4, ABCA8A, and NFKBIZ. Significant S100A9 upregulation was closely associated with myocardial injury exacerbation and cardiac function deterioration. GSEA revealed that myocardial contractile function, oxidative stress, and mitochondrial function were significantly affected by S100A9. Knocking out S100A9 alleviates the inflammatory response and mitochondrial dysfunction. The interaction of S100A9 with ATP5 enhanced mitochondrial division and autophagy, inhibited MMP and ATP synthesis, and induced oxidative stress, which are related to the Nlrp3-Nfkb-Caspase1 and Drp1-Pink1-Parkin signaling pathways. The expression of mitochondrial transcription factors (TFAM and TFBM) and ATP synthetases (ATP6 and ATP8, as well as COX1, COX2, and COX3) was further suppressed by S100A9 in SICM. Targeted S100A9 inhibition by paquinimod partially reversed myocardial mitochondrial dysfunction and oxidative stress. Conclusion The interaction of S100A9 with ATP5 exacerbates myocardial damage in sepsis by inducing mitochondrial dysfunction and oxidative stress.
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Affiliation(s)
- Hui Pei
- Emergency Department, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jie Qu
- Emergency Department, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jianming Chen
- Emergency Department, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Guangju Zhao
- Emergency Department, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - ZhongQiu Lu
- Emergency Department, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
- Wenzhou Key Laboratory of Emergency and Disaster Medicine, Wenzhou, People’s Republic of China
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Liu WJ, Qiao YH, Wang S, Wang YB, Nong QN, Xiao Q, Bai HX, Wu KH, Chen J, Li XQ, Wang YF, Tan J, Cao W. A novel glycoglycerolipid from Holotrichia diomphalia Bates: Structure characteristics and protective effect against DNA damage. Int J Biol Macromol 2024; 271:132594. [PMID: 38821811 DOI: 10.1016/j.ijbiomac.2024.132594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 06/02/2024]
Abstract
A lipidated polysaccharide, HDPS-2II, was isolated from the dried larva of Holotrichia diomphalia, which is used in traditional Chinese medicine. The molecular weight of HDPS-2II was 5.9 kDa, which contained a polysaccharide backbone of →4)-β-Manp-(1 → 4,6)-β-Manp-(1 → [6)-α-Glcp-(1]n → 6)-α-Glcp→ with the side chain α-Glcp-(6 → 1)-α-Glcp-(6 → linked to the C-4 of β-1,4,6-Manp and four types of lipid chains including 4-(4-methyl-2-(methylamino)pentanamido)pentanoic acid, 5-(3-(tert-butyl)phenoxy)hexan-2-ol, N-(3-methyl-5-oxopentan-2-yl)palmitamide, and N-(5-amino-3-methyl-5-oxopentan-2-yl)stearamide. The lipid chains were linked to C-1 of terminal α-1,6-Glcp in carbohydrate chain through diacyl-glycerol. HDPS-2II exhibited DNA protective effects and antioxidative activity on H2O2- or adriamycin (ADM)-induced Chinese hamster lung cells. Furthermore, HDPS-2II significantly ameliorated chromosome aberrations and the accumulation of reactive oxygen species (ROS), reduced γ-H2AX signaling and the expressions of NADPH oxidase (NOX)2, NOX4, P22phox, and P47phox in ADM-induced cardiomyocytes. Mechanistically, HDPS-2II suppressed ADM-induced up-regulation of NOX2 and NOX4 in cardiomyocytes, but not in NOX2 or NOX4 knocked-down cardiomyocytes, indicating that HDPS-2II could relieve intracellular DNA damage by regulating NOX2/NOX4 signaling. These findings demonstrate that HDPS-2II is a new potential DNA protective agent.
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Affiliation(s)
- Wen-Juan Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Yu-He Qiao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Shuyao Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Yu-Bo Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Qiu-Na Nong
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Qianhan Xiao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Hong-Xin Bai
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Ke-Han Wu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Jie Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Xiao-Qiang Li
- Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an 710032, China; Department of Chinese Materia Medica and Natural Medicines, School of Pharmacy, Fourth Military Medical University, Xi'an 710032, China
| | - Yu-Fan Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Jin Tan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Wei Cao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, School of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China; Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an 710032, China.
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Gallero S, Persson KW, Henríquez-Olguín C. Unresolved questions in the regulation of skeletal muscle insulin action by reactive oxygen species. FEBS Lett 2024. [PMID: 38803005 DOI: 10.1002/1873-3468.14937] [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: 03/07/2024] [Revised: 04/10/2024] [Accepted: 04/22/2024] [Indexed: 05/29/2024]
Abstract
Reactive oxygen species (ROS) are well-established signaling molecules implicated in a wide range of cellular processes, including both oxidative stress and intracellular redox signaling. In the context of insulin action within its target tissues, ROS have been reported to exert both positive and negative regulatory effects. However, the precise molecular mechanisms underlying this duality remain unclear. This Review examines the complex role of ROS in insulin action, with a particular focus on skeletal muscle. We aim to address three critical aspects: (a) the proposed intracellular pro-oxidative redox shift elicited by insulin, (b) the evidence supporting that redox-sensitive cysteine modifications impact insulin signaling and action, and (c) cellular mechanisms underlying how ROS can paradoxically act as both enhancers and inhibitors of insulin action. This Review underscores the urgent need for more systematic research to identify specific reactive species, redox targets, and the physiological significance of redox signaling in maintaining insulin action and metabolic health, with a particular emphasis on human skeletal muscle.
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Affiliation(s)
- Samantha Gallero
- The August Krogh Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | - Kaspar W Persson
- The August Krogh Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | - Carlos Henríquez-Olguín
- The August Krogh Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
- Exercise Science Laboratory, Faculty of Medicine, Universidad Finis Terrae, Santiago, Chile
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Ni D, Lin X, Deng C, Yuan L, Li J, Liu Y, Liang P, Jiang B. Energy Metabolism: From Physiological Changes to Targets in Sepsis-induced Cardiomyopathy. Hellenic J Cardiol 2024:S1109-9666(24)00114-3. [PMID: 38734307 DOI: 10.1016/j.hjc.2024.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/07/2024] [Accepted: 05/04/2024] [Indexed: 05/13/2024] Open
Abstract
Sepsis is a systemic inflammatory response syndrome caused by a variety of dysregulated responses to host infection with life-threatening multi-organ dysfunction. Among the injuries or dysfunctions involved in the course of sepsis, cardiac injury and dysfunction often occur and are associated with the pathogenesis of hemodynamic disturbances, also defined as sepsis-induced cardiomyopathy (SIC). The process of myocardial metabolism is tightly regulated and adapts to various cardiac output demands. The heart is a metabolically flexible organ capable of utilizing all classes of energy substrates, including carbohydrates, lipids, amino acids, and ketone bodies to produce ATP. The demand of cardiac cells for energy metabolism changes substantially in septic cardiomyopathy with distinct etiological causes and different times. This review describes changes in cardiomyocyte energy metabolism under normal physiological conditions and some features of myocardial energy metabolism in septic cardiomyopathy, and briefly outlines the role of the mitochondria as a center of energy metabolism in the septic myocardium, revealing that changes in energy metabolism can serve as a potential future therapy for infectious cardiomyopathy.
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Affiliation(s)
- Dan Ni
- Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan China
| | - Xiaofang Lin
- Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan China
| | - Chuanhuang Deng
- Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan China
| | - Ludong Yuan
- Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan China
| | - Jing Li
- Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan China
| | - Yuxuan Liu
- Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bimei Jiang
- Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan China.
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Nikouee A, Yap JQ, Rademacher DJ, Kim M, Zang QS. An Optimized Langendorff-free Method for Isolation and Characterization of Primary Adult Cardiomyocytes. RESEARCH SQUARE 2024:rs.3.rs-4131724. [PMID: 38585995 PMCID: PMC10996804 DOI: 10.21203/rs.3.rs-4131724/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Isolation of adult mouse cardiomyocytes is an essential technique for advancing our understanding of cardiac physiology and pathology, and for developing therapeutic strategies to improve cardiac health. Traditionally, cardiomyocytes are isolated from adult mouse hearts using the Langendorff perfusion method in which the heart is excised, cannulated, and retrogradely perfused through the aorta. While this method is highly effective for isolating cardiomyocytes, it requires specialized equipment and technical expertise. To address the challenges of the Langendorff perfusion method, researchers have developed a Langendorff-free technique for isolating cardiomyocytes. This Langendorff-free technique involves anterograde perfusion through the coronary vasculature by clamping the aorta and intraventricular injection. This method simplifies the experimental setup by eliminating the need for specialized equipment and cannulation of the heart. Here, we introduce an updated Langendorff-free method for isolating adult mice cardiomyocytes that builds on the Langendorff-free protocols developed previously. In this method, the aorta is clamped in situ, and the heart is perfused using a peristaltic pump, water bath, and an injection needle. This simplicity makes cardiomyocyte isolation more accessible for researchers who are new to cardiomyocyte isolation or are working with limited resources. In this report, we provide a step-by-step description of our optimized protocol. In addition, we present example studies of analyzing mitochondrial structural and functional characteristics in isolated cardiomyocytes treated with and without the acute inflammatory stimuli lipopolysaccharide (LPS).
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Geng H, Zhang H, Cheng L, Dong S. Sivelestat ameliorates sepsis-induced myocardial dysfunction by activating the PI3K/AKT/mTOR signaling pathway. Int Immunopharmacol 2024; 128:111466. [PMID: 38176345 DOI: 10.1016/j.intimp.2023.111466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 12/07/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024]
Abstract
The cardioprotective role of sivelestat, a neutrophil elastase inhibitor, has already been demonstrated, but the underlying molecular mechanism remains unclear. This study aimed to explore the mechanism underlying the role of sivelestat in sepsis-induced myocardial dysfunction (SIMD). We found that sivelestat treatment remarkably improved the viability and suppressed the apoptosis of lipopolysaccharide (LPS)-stimulated H9c2 cells. In vivo, sivelestat treatment was associated with an improved survival rate; reduced serum cTnT, TNF-α, IL-1β levels and myocardial TNF-α and IL-1β levels; ameliorated cardiac function and structure; and reduced cardiomyocyte apoptosis. Moreover, sivelestat treatment substantially increased Bcl-2 expression and suppressed caspase-3 and Bax expression in LPS-induced H9c2 cells and in the heart tissues of septic rats. Furthermore, the phosphatidylinositol 3-kinase/protein kinase B/mechanistic target of rapamycin (PI3K/AKT/mTOR) signaling pathway was activated both in vitro and in vivo. The protective effect of sivelestat against SIMD was reversed by the PI3K inhibitor LY294002. In summary, sivelestat can protect against SIMD by activating the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Hongyu Geng
- Department of Intensive Care Unit, Baoding First Central Hospital, Baoding, China
| | - Hongbo Zhang
- Department of General Surgery, Baoding First Central Hospital, Baoding, China
| | - Lianfang Cheng
- Department of Intensive Care Unit, Baoding First Central Hospital, Baoding, China
| | - Shimin Dong
- Department of Emergency, The Third Hospital of Hebei Medical University, Shijiazhuang, China.
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Nie X, Deng W, Zhou H, Wang Z. Long noncoding RNA MCM3AP-AS1 attenuates sepsis-induced cardiomyopathy by improving inflammation, oxidative stress, and mitochondrial function through mediating the miR-501-3p/CADM1/STAT3 axis. Int Immunopharmacol 2024; 128:111500. [PMID: 38237222 DOI: 10.1016/j.intimp.2024.111500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 12/17/2023] [Accepted: 01/03/2024] [Indexed: 02/08/2024]
Abstract
Oxidative stress and inflammation are highly important for sepsis-mediated myocardial damage. The long noncoding RNA (lncRNA) MCM3AP-AS1 is involved in inflammatory diseases, but its function in acute myocardial injury during sepsis has not been fully elucidated. LPS and cecal ligation and puncture (CLP) were used to construct in vitro and in vivo sepsis-induced myocardial damage models, respectively. qRT-PCR was used to evaluate alterations in MCM3AP-AS1 and miR-501-3p alterations. After the MCM3AP-AS1 and miR-501-3p knockdown or overexpression models were established, the viability, apoptosis, inflammation, oxidative stress, and mitochondrial function of the myocardial cells were examined. Dual luciferase activity assay, RNA immunoprecipitation, and fluorescence in situ hybridization (FISH) confirmed the correlation among MCM3AP-AS1, miR-501-3p, and CADM1. Previous studies revealed that MCM3AP-AS1 was downregulated in sepsis patients, myocardial cells treated with LPS, and in the CLP mouse sepsis model, whereas miR-501-3p expression was increased. MCM3AP-AS1 overexpression hampered myocardial damage mediated by LPS and abated inflammation, oxidative stress, and mitochondrial dysfunction in myocardial cells and THP-1 cells. In contrast, MCM3AP-AS1 knockdown or miR-501-3p overexpression promoted all the effects of LPS. In vivo, MCM3AP-AS1 overexpression increased the survival rate of CLP mice; ameliorated myocardial injury; decreased the levels of TNF-α, IL-1β, IL-6, iNOS, COX2, ICAM1, VCAM1, PGE2, and MDA; and increased the levels of SOD, GSH-PX, Nrf2, and HO-1. Mechanistic studies demonstrated that MCM3AP-AS1 acted as a competitive endogenous RNA to repress miR-501-3p, enhance CADM1 expression, and dampen STAT3/nuclear factor-kappaB (NF-κB) activation. MCM3AP-AS1 suppresses myocardial injury elicited by sepsis by mediating the miR-501-3p/CADM1/STAT3/NF-κB axis.
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Affiliation(s)
- Xiangbi Nie
- Department of Emergency, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, NanChang 330006, Jiangxi, China
| | - Wu Deng
- Department of Emergency, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, NanChang 330006, Jiangxi, China
| | - Han Zhou
- Department of Emergency, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, NanChang 330006, Jiangxi, China
| | - Zenggeng Wang
- Department of Emergency, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, NanChang 330006, Jiangxi, China.
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Huang L, Wang X, Huang B, Chen Y, Wu X. Bisphosphoglycerate mutase predicts myocardial dysfunction and adverse outcome in sepsis: an observational cohort study. BMC Infect Dis 2024; 24:173. [PMID: 38326761 PMCID: PMC10848385 DOI: 10.1186/s12879-024-09008-6] [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: 04/25/2023] [Accepted: 01/10/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND Sepsis not only causes inflammation, but also damages the heart and increases the risk of death. The glycolytic pathway plays a crucial role in the pathogenesis of sepsis-induced cardiac injury. This study aims to investigate the value of bisphosphoglycerate mutase (BPGM), an intermediate in the glycolytic pathway, in evaluating cardiac injury in septic patients and predicting poor prognosis in sepsis. METHODS This prospective study included 85 patients with sepsis. Serum BPGM was measured at the time of enrollment, and the patients were divided into a BPGM-positive group (n = 35) and a BPGM-negative group (n = 50) according to their serum BPGM levels. Baseline clinical and echocardiographic parameters, and clinical outcomes were analyzed and compared between the two groups. Kaplan-Meier analysis was used to compare the 28-day survival rate between BPGM-negative and BPGM-positive patients. Multivariate logistic regression analysis was conducted to explore the independent risk factors for 28-day mortality in septic patients. The predictive value of serum BPGM for sepsis-induced myocardial injury and poor prognosis in sepsis was evaluated using receiver operating characteristic (ROC)curve analysis. RESULT The serum level of BPGM was significantly higher in patients who died within 28 days compared to survivors (p < 0.001). Kaplan-Meier analysis showed that serum BPGM-positive sepsis patients had a significantly shorter 28-day survival time (p < 0.001). Multivariate logistic regression analysis showed that serum BPGM (OR = 9.853, 95%CI 1.844-52.655, p = 0.007) and left ventricular ejection fraction-simpson(LVEF-S) (OR = 0.032, 95% CI 0.002-0.43, p = 0.009) were independent risk factors for 28-day mortality in sepsis patients. Furthermore, BPGM levels was negatively correlated with LVEF-S (p = 0.005) and positively correlated with the myocardial performance (Tei) index (p < 0.001) in sepsis patients. ROC curve analysis showed that serum BPGM was a good predictor of septic myocardial injury and 28-day mortality in sepsis patients. CONCLUSION The level of BPGM in the serum of sepsis patients can serve as a monitoring indicator for myocardial injury, with its high level indicating the occurrence of secondary myocardial injury events and adverse outcomes in sepsis patients.
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Affiliation(s)
- Long Huang
- Department of Critical Care Medicine, Shengli Clinical Medical College of Fujian Medical University, Fujian Provicial Hospital, Fuzhou, China
| | - Xincai Wang
- Department of Critical Care Medicine, Shengli Clinical Medical College of Fujian Medical University, Fujian Provicial Hospital, Fuzhou, China.
| | - Bawei Huang
- Medical Department, Shengli Clinical Medical College of Fujian Medical University, Fujian Provicial Hospital, Fuzhou, China
| | - Yu Chen
- Department of Anesthesiology, Shengli Clinical Medical College of Fujian Medical University, Fujian Provicial Hospital, Fuzhou, China
| | - Xiaodan Wu
- Department of Anesthesiology, Shengli Clinical Medical College of Fujian Medical University, Fujian Provicial Hospital, Fuzhou, China.
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Wan TT, Li Y, Li JX, Xiao X, Liu L, Li HH, Guo SB. ACE2 activation alleviates sepsis-induced cardiomyopathy by promoting MasR-Sirt1-mediated mitochondrial biogenesis. Arch Biochem Biophys 2024; 752:109855. [PMID: 38097099 DOI: 10.1016/j.abb.2023.109855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/17/2023] [Accepted: 12/08/2023] [Indexed: 12/20/2023]
Abstract
Sepsis-induced cardiomyopathy (SIC), caused by a dysregulated host response to infection, is a major contributor to high mortality. Angiotensin-converting enzyme 2 (ACE2), a crucial component of the renin-angiotensin system (RAS), has protective effects against several cardiovascular diseases, such as myocardial infarction and heart failure. However, the role of ACE2 in the pathogenesis of SIC and underlying mechanisms remain unknown. The present study was designed to examine the effects of ACE2 activation or inhibition on SIC in C57BL/6 mice. The ACE2 activator diminazene aceturate (DIZE) and ACE2 inhibitor MLN-4760 were applied for treatment. Myocardial function, inflammatory response, oxidative stress, apoptosis and mitochondrial biogenesis were investigated. Major assays were echocardiography, H&E staining, immunofluorescence staining, DHE staining, TUNEL staining, Western blot, qPCR analysis, ELISA and corresponding kits. We confirmed that ACE2 was markedly downregulated in septic heart tissues. Pharmacological activation of ACE2 by DIZE ameliorated cecal ligation puncture (CLP)-induced mortality, cardiac dysfunction, inflammatory response, oxidative stress and the cardiomyocyte apoptosis by promoting MasR-Sirt1-mediated mitochondrial biogenesis. In contrast, SIC was aggravated via inhibiting MasR-Sirt1-mediated mitochondrial biogenesis by the use of ACE2 inhibitor MLN-4760. Consequently, activation of ACE2 may protect against SIC by promoting MasR-Sirt1-mediated mitochondrial biogenesis.
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Affiliation(s)
- Tian-Tian Wan
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Ya Li
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Jia-Xin Li
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Xue Xiao
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Lei Liu
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China.
| | - Shu-Bin Guo
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China.
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Salami OM, Habimana O, Peng JF, Yi GH. Therapeutic Strategies Targeting Mitochondrial Dysfunction in Sepsis-induced Cardiomyopathy. Cardiovasc Drugs Ther 2024; 38:163-180. [PMID: 35704247 DOI: 10.1007/s10557-022-07354-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/06/2022] [Indexed: 11/03/2022]
Abstract
Sepsis is an increasingly worldwide problem; it is currently regarded as a complex life-threatening dysfunction of one or more organs as a result of dysregulated host immune response to infections. The heart is one of the most affected organs, as roughly 10% to 70% of sepsis cases are estimated to turn into sepsis-induced cardiomyopathy (SIC). SIC can be defined as a reversible myocardial dysfunction characterized by dilated ventricles, impaired contractility, and decreased ejection fraction. Mitochondria play a critical role in the normal functioning of cardiac tissues as the heart is highly dependent on its production of adenosine triphosphate (ATP), its damage during SIC includes morphology impairment, mitophagy, biogenesis disequilibrium, electron transport chain disturbance, molecular damage from the actions of pro-inflammatory cytokines and many other different impairments that are major contributing factors to the severity of SIC. Although mitochondria-targeted therapies usage is still inadequate in clinical settings, the preclinical study outcomes promise that the implementation of these therapies may effectively treat SIC. This review summarizes the different therapeutic strategies targeting mitochondria structure, quality, and quantity abnormalities for the treatment of SIC.
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Affiliation(s)
| | - Olive Habimana
- International College, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China
| | - Jin-Fu Peng
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hengyang Medical School, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China
| | - Guang-Hui Yi
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hengyang Medical School, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China.
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China.
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Yan S, Sheak JR, Walker BR, Jernigan NL, Resta TC. Contribution of Mitochondrial Reactive Oxygen Species to Chronic Hypoxia-Induced Pulmonary Hypertension. Antioxidants (Basel) 2023; 12:2060. [PMID: 38136180 PMCID: PMC10741244 DOI: 10.3390/antiox12122060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023] Open
Abstract
Pulmonary hypertension (PH) resulting from chronic hypoxia (CH) occurs in patients with chronic obstructive pulmonary diseases, sleep apnea, and restrictive lung diseases, as well as in residents at high altitude. Previous studies from our group and others demonstrate a detrimental role of reactive oxygen species (ROS) in the pathogenesis of CH-induced PH, although the subcellular sources of ROS are not fully understood. We hypothesized that mitochondria-derived ROS (mtROS) contribute to enhanced vasoconstrictor reactivity and PH following CH. To test the hypothesis, we exposed rats to 4 weeks of hypobaric hypoxia (PB ≈ 380 mmHg), with control rats housed in ambient air (PB ≈ 630 mmHg). Chronic oral administration of the mitochondria-targeted antioxidant MitoQ attenuated CH-induced decreases in pulmonary artery (PA) acceleration time, increases in right ventricular systolic pressure, right ventricular hypertrophy, and pulmonary arterial remodeling. In addition, endothelium-intact PAs from CH rats exhibited a significantly greater basal tone compared to those from control animals, as was eliminated via MitoQ. CH also augmented the basal tone in endothelium-disrupted PAs, a response associated with increased mtROS production in primary PA smooth muscle cells (PASMCs) from CH rats. However, we further uncovered an effect of NO synthase inhibition with Nω-nitro-L-arginine (L-NNA) to unmask a potent endothelial vasoconstrictor influence that accentuates mtROS-dependent vasoconstriction following CH. This basal tone augmentation in the presence of L-NNA disappeared following combined endothelin A and B receptor blockade with BQ123 and BQ788. The effects of using CH to augment vasoconstriction and PASMC mtROS production in exogenous endothelin 1 (ET-1) were similarly prevented by MitoQ. We conclude that mtROS participate in the development of CH-induced PH. Furthermore, mtROS signaling in PASMCs is centrally involved in enhanced pulmonary arterial constriction following CH, a response potentiated by endogenous ET-1.
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Affiliation(s)
| | | | | | | | - Thomas C. Resta
- Vascular Physiology Group, Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA (J.R.S.); (B.R.W.); (N.L.J.)
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12
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Pérez-Torres I, Aisa-Álvarez A, Casarez-Alvarado S, Borrayo G, Márquez-Velasco R, Guarner-Lans V, Manzano-Pech L, Cruz-Soto R, Gonzalez-Marcos O, Fuentevilla-Álvarez G, Gamboa R, Saucedo-Orozco H, Franco-Granillo J, Soto ME. Impact of Treatment with Antioxidants as an Adjuvant to Standard Therapy in Patients with Septic Shock: Analysis of the Correlation between Cytokine Storm and Oxidative Stress and Therapeutic Effects. Int J Mol Sci 2023; 24:16610. [PMID: 38068931 PMCID: PMC10706209 DOI: 10.3390/ijms242316610] [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: 10/10/2023] [Revised: 11/14/2023] [Accepted: 11/18/2023] [Indexed: 12/18/2023] Open
Abstract
Cellular homeostasis is lost or becomes dysfunctional during septic shock due to the activation of the inflammatory response and the deregulation of oxidative stress. Antioxidant therapy administered alongside standard treatment could restore this lost homeostasis. We included 131 patients with septic shock who were treated with standard treatment and vitamin C (Vit C), vitamin E (Vit E), N-acetylcysteine (NAC), or melatonin (MT), in a randomized trial. Organ damage quantified by Sequential Organ Failure Assessment (SOFA) score, and we determined levels of Interleukins (IL) IL1β, Tumor necrosis factor alpha (TNFα), IL-6, monocyte chemoattractant protein-1 (MCP-1), Transforming growth factor B (TGFβ), IL-4, IL-10, IL-12, and Interferon-γ (IFNγ). The SOFA score decreased in patients treated with Vit C, NAC, and MT. Patients treated with MT had statistically significantly reduced of IL-6, IL-8, MCP-1, and IL-10 levels. Lipid peroxidation, Nitrates and nitrites (NO3- and NO2-), glutathione reductase, and superoxide dismutase decreased after treatment with Vit C, Vit E, NAC, and MT. The levels of thiols recovered with the use of Vit E, and all patients treated with antioxidants maintained their selenium levels, in contrast with controls (p = 0.04). The findings regarding oxidative stress markers and cytokines after treatment with antioxidants allow us to consider to future the combined use of antioxidants in a randomized clinical trial with a larger sample to demonstrate the reproducibility of these beneficial effects.
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Affiliation(s)
- Israel Pérez-Torres
- Cardiovascular Biomedicine Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico; (I.P.-T.); (L.M.-P.)
| | - Alfredo Aisa-Álvarez
- Critical Care Department, American British Cowdray (ABC) Medical Center, PAI ABC Sur 136 No. 116, Col. las Américas, Mexico City 01120, Mexico; (A.A.-Á.); (O.G.-M.); (J.F.-G.)
| | - Sergio Casarez-Alvarado
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico; (S.C.-A.); (R.M.-V.); (R.C.-S.)
| | - Gabriela Borrayo
- Instituto Mexicano del Seguro Social, Dirección de Prestaciones Médicas Coordinación de Innovación en Salud, Ciudad de México 06700, Mexico;
| | - Ricardo Márquez-Velasco
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico; (S.C.-A.); (R.M.-V.); (R.C.-S.)
| | - Verónica Guarner-Lans
- Physiology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico; (V.G.-L.); (G.F.-Á.); (R.G.)
| | - Linaloe Manzano-Pech
- Cardiovascular Biomedicine Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico; (I.P.-T.); (L.M.-P.)
| | - Randall Cruz-Soto
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico; (S.C.-A.); (R.M.-V.); (R.C.-S.)
| | - Omar Gonzalez-Marcos
- Critical Care Department, American British Cowdray (ABC) Medical Center, PAI ABC Sur 136 No. 116, Col. las Américas, Mexico City 01120, Mexico; (A.A.-Á.); (O.G.-M.); (J.F.-G.)
| | - Giovanny Fuentevilla-Álvarez
- Physiology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico; (V.G.-L.); (G.F.-Á.); (R.G.)
| | - Ricardo Gamboa
- Physiology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico; (V.G.-L.); (G.F.-Á.); (R.G.)
| | | | - Juvenal Franco-Granillo
- Critical Care Department, American British Cowdray (ABC) Medical Center, PAI ABC Sur 136 No. 116, Col. las Américas, Mexico City 01120, Mexico; (A.A.-Á.); (O.G.-M.); (J.F.-G.)
| | - María Elena Soto
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico; (S.C.-A.); (R.M.-V.); (R.C.-S.)
- Research Direction Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14380, Mexico
- Cardiovascular Line in American British Cowdray (ABC) Medical Center, PAI ABC Sur 136 No. 116, Col. Las Américas, Mexico City 01120, Mexico
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13
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Pei XB, Liu B. Research Progress on the Mechanism and Management of Septic Cardiomyopathy: A Comprehensive Review. Emerg Med Int 2023; 2023:8107336. [PMID: 38029224 PMCID: PMC10681771 DOI: 10.1155/2023/8107336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 12/01/2023] Open
Abstract
Sepsis is defined as a kind of life-threatening organ dysfunction due to a dysregulated host immune response to infection and is a leading cause of mortality in the intensive care unit. Sepsis-induced myocardial dysfunction, also called septic cardiomyopathy, is a common and serious complication in patients with sepsis, which may indicate a bad prognosis. Although efforts have been made to uncover the pathophysiology of septic cardiomyopathy, a number of uncertainties remain. This article sought to review available literature to summarize the existing knowledge on current diagnostic tools and biomarkers, pathogenesis, and treatments for septic cardiomyopathy.
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Affiliation(s)
- Xue-Bin Pei
- Emergency Medicine Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Bo Liu
- Department of Emergency Medicine, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
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14
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Zhao H, Lin X, Chen Q, Wang X, Wu Y, Zhao X. Quercetin inhibits the NOX2/ROS-mediated NF-κB/TXNIP signaling pathway to ameliorate pyroptosis of cardiomyocytes to relieve sepsis-induced cardiomyopathy. Toxicol Appl Pharmacol 2023; 477:116672. [PMID: 37648089 DOI: 10.1016/j.taap.2023.116672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 08/18/2023] [Accepted: 08/27/2023] [Indexed: 09/01/2023]
Abstract
Sepsis-induced cardiomyopathy (SIC) has high morbidity and mortality. Quercetin (QUE) has been used to treat many inflammatory diseases related to pyroptosis. However, its effect on SIC has not been reported before. We aimed to explore the therapeutic mechanism of QUE on SIC. We found that the expression levels of NOX2, markers of myocardial injury and inflammatory factors related to pyroptosis were upregulated in the serum of SIC patients. QUE improved the viability and reduced the death rate of LPS-treated H9C2 cells. It could downregulate the expression level of NOX2 and alleviate NOX2-induced mitochondrial damage to inhibit the ROS-mediated NF-κB/TXNIP pathway thus ameliorating cell pyroptosis. Overexpression of NOX2 partially attenuated the anti-pyroptotic effects of QUE on LPS-treated H9C2 cells in vitro. Besides, the results of animal experiments reported that the mitochondrial damage was reduced by QUE treatment, which subsequently inhibited the ROS-mediated NF-κB/TXNIP pathway to ameliorate cell pyroptosis to further alleviate myocardial injury in CLP-induced rats in vivo. To conclude, QUE suppressed the NOX2/ROS-mediated NF-κB/TXNIP signaling pathway to ameliorate pyroptosis of cardiomyocytes to relieve SIC.
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Affiliation(s)
- Hao Zhao
- Department of Emergency and Critical Care Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 42, Wenhuaxi Road, Lixia District, Jinan City, Shandong Province 250014, China
| | - Xin Lin
- Department of Emergency and Critical Care Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 42, Wenhuaxi Road, Lixia District, Jinan City, Shandong Province 250014, China
| | - Qingfeng Chen
- Department of Emergency and Critical Care Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 42, Wenhuaxi Road, Lixia District, Jinan City, Shandong Province 250014, China
| | - Xiaoyue Wang
- Department of Emergency and Critical Care Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 42, Wenhuaxi Road, Lixia District, Jinan City, Shandong Province 250014, China
| | - Yongya Wu
- Department of Emergency and Critical Care Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 42, Wenhuaxi Road, Lixia District, Jinan City, Shandong Province 250014, China
| | - Xiaoxia Zhao
- Department of Emergency and Critical Care Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 42, Wenhuaxi Road, Lixia District, Jinan City, Shandong Province 250014, China.
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15
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You G, Zhao X, Liu J, Yao K, Yi X, Chen H, Wei X, Huang Y, Yang X, Lei Y, Lin Z, He Y, Fan M, An Y, Lu T, Lv H, Sui X, Yi H. Machine learning-based identification of CYBB and FCAR as potential neutrophil extracellular trap-related treatment targets in sepsis. Front Immunol 2023; 14:1253833. [PMID: 37901228 PMCID: PMC10613076 DOI: 10.3389/fimmu.2023.1253833] [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: 07/06/2023] [Accepted: 09/25/2023] [Indexed: 10/31/2023] Open
Abstract
Objective Sepsis related injury has gradually become the main cause of death in non-cardiac patients in intensive care units, but the underlying pathological and physiological mechanisms remain unclear. The Third International Consensus Definitions for Sepsis and Septic Shock (SEPSIS-3) definition emphasized organ dysfunction caused by infection. Neutrophil extracellular traps (NETs) can cause inflammation and have key roles in sepsis organ failure; however, the role of NETs-related genes in sepsis is unknown. Here, we sought to identify key NETs-related genes associate with sepsis. Methods Datasets GSE65682 and GSE145227, including data from 770 patients with sepsis and 54 healthy controls, were downloaded from the GEO database and split into training and validation sets. Differentially expressed genes (DEGs) were identified and weighted gene co-expression network analysis (WGCNA) performed. A machine learning approach was applied to identify key genes, which were used to construct functional networks. Key genes associated with diagnosis and survival of sepsis were screened out. Finally, mouse and human blood samples were collected for RT-qPCR verification and flow cytometry analysis. Multiple organs injury, apoptosis and NETs expression were measured to evaluated effects of sulforaphane (SFN). Results Analysis of the obtained DEGs and WGCNA screened a total of 3396 genes in 3 modules, and intersection of the results of both analyses with 69 NETs-related genes, screened out seven genes (S100A12, SLC22A4, FCAR, CYBB, PADI4, DNASE1, MMP9) using machine learning algorithms. Of these, CYBB and FCAR were independent predictors of poor survival in patients with sepsis. Administration of SFN significantly alleviated murine lung NETs expression and injury, accompanied by whole blood CYBB mRNA level. Conclusion CYBB and FCAR may be reliable biomarkers of survival in patients with sepsis, as well as potential targets for sepsis treatment. SFN significantly alleviated NETs-related organs injury, suggesting the therapeutic potential by targeting CYBB in the future.
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Affiliation(s)
- GuoHua You
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - XueGang Zhao
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - JianRong Liu
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kang Yao
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - XiaoMeng Yi
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - HaiTian Chen
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - XuXia Wei
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - YiNong Huang
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - XingYe Yang
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - YunGuo Lei
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - ZhiPeng Lin
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - YuFeng He
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - MingMing Fan
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - YuLing An
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - TongYu Lu
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - HaiJin Lv
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xin Sui
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - HuiMin Yi
- Department of Surgical Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Osuru HP, Ikeda K, Atluri N, Thiele RH. Moderate exercise-induced dynamics on key sepsis-associated signaling pathways in the liver. Crit Care 2023; 27:266. [PMID: 37407986 DOI: 10.1186/s13054-023-04551-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/25/2023] [Indexed: 07/07/2023] Open
Abstract
BACKGROUND There is a clear relationship between quantitative measures of fitness (e.g., VO2 max) and outcomes after surgical procedures. Whether or not fitness is a modifiable risk factor and what underlying biological processes drive these changes are not known. The purpose of this study was to evaluate the moderate exercise training effect on sepsis outcomes (survival) as well as the hepatic biological response. We chose to study the liver because it plays a central role in the regulation of immune defense during systemic infection and receives blood flow directly from the origin of infection (gut) in the cecal ligation and puncture (CLP) model. METHODS We randomized 50 male (♂) and female (♀) Sprague-Dawley rats (10 weeks, 340 g) to 3 weeks of treadmill exercise training, performed CLP to induce polymicrobial "sepsis," and monitored survival for five days (Part I). In parallel (Part II), we randomized 60 rats to control/sedentary (G1), exercise (G2), exercise + sham surgery (G3), CLP/sepsis (G4), exercise + CLP [12 h (G5) and 24 h (G6)], euthanized at 12 or 24 h, and explored molecular pathways related to exercise and sepsis survival in hepatic tissue and serum. RESULTS Three weeks of exercise training significantly increased rat survival following CLP (polymicrobial sepsis). CLP increased inflammatory markers (e.g., TNF-a, IL-6), which were attenuated by exercise. Sepsis suppressed the SOD and Nrf2 expression, and exercise before sepsis restored SOD and Nrf2 levels near the baseline. CLP led to increased HIF1a expression and oxidative and nitrosative stress, the latter of which were attenuated by exercise. Haptoglobin expression levels were increased in CLP animals, which was significantly amplified in exercise + CLP (24 h) rats. CONCLUSIONS Moderate exercise training (3 weeks) increased the survival in rats exposed to CLP, which was associated with less inflammation, less oxidative and nitrosative stress, and activation of antioxidant defense pathways.
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Affiliation(s)
- Hari Prasad Osuru
- Department of Anesthesiology, University of Virginia School of Medicine, P.O. Box 800710-0710, Charlottesville, VA, 22908-0710, USA.
| | - Keita Ikeda
- Department of Anesthesiology, University of Virginia School of Medicine, P.O. Box 800710-0710, Charlottesville, VA, 22908-0710, USA
| | - Navya Atluri
- Department of Anesthesiology, University of Virginia School of Medicine, P.O. Box 800710-0710, Charlottesville, VA, 22908-0710, USA
| | - Robert H Thiele
- Department of Anesthesiology, University of Virginia School of Medicine, P.O. Box 800710-0710, Charlottesville, VA, 22908-0710, USA.
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17
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Ciacci P, Paraninfi A, Orlando F, Rella S, Maggio E, Oliva A, Cangemi R, Carnevale R, Bartimoccia S, Cammisotto V, D'Amico A, Magna A, Nocella C, Mastroianni CM, Pignatelli P, Violi F, Loffredo L. Endothelial dysfunction, oxidative stress and low-grade endotoxemia in COVID-19 patients hospitalised in medical wards. Microvasc Res 2023:104557. [PMID: 37268038 DOI: 10.1016/j.mvr.2023.104557] [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: 02/09/2023] [Revised: 05/19/2023] [Accepted: 05/30/2023] [Indexed: 06/04/2023]
Abstract
BACKGROUND Endothelial dysfunction, assessed by flow-mediated dilation (FMD), is related to poor prognosis in patients with COVID-19 pneumonia (CP). In this study, we explored the interplay among FMD, NADPH oxidase type 2 (NOX-2) and lipopolysaccharides (LPS) in hospitalised patients with CP, community acquired pneumonia (CAP) and controls (CT). METHODS We enrolled 20 consecutive patients with CP, 20 hospitalised patients with CAP and 20 CT matched for sex, age, and main cardiovascular risk factors. In all subjects we performed FMD and collected blood samples to analyse markers of oxidative stress (soluble Nox2-derived peptide (sNOX2-dp), hydrogen peroxide breakdown activity (HBA), nitric oxide (NO), hydrogen peroxide (H2O2)), inflammation (TNF-α and IL-6), LPS and zonulin levels. RESULTS Compared with controls, CP had significant higher values of LPS, sNOX-2-dp, H2O2,TNF-α, IL-6 and zonulin; conversely FMD, HBA and NO bioavailability were significantly lower in CP. Compared to CAP patients, CP had significantly higher levels of sNOX2-dp, H2O2, TNF-α, IL-6, LPS, zonulin and lower HBA. Simple linear regression analysis showed that FMD inversely correlated with sNOX2-dp, H2O2, TNF-α, IL-6, LPS and zonulin; conversely FMD was directly correlated with NO bioavailability and HBA. Multiple linear regression analysis highlighted LPS as the only predictor of FMD. CONCLUSION This study shows that patients with COVID-19 have low-grade endotoxemia that could activate NOX-2, generating increased oxidative stress and endothelial dysfunction.
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Affiliation(s)
- Paolo Ciacci
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Aurora Paraninfi
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Federica Orlando
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Silvia Rella
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Enrico Maggio
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Alessandra Oliva
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Roberto Cangemi
- Department of Translational and Precision Medicine, Sapienza-University of Rome, Viale del Policlinico 155, 00162 Rome, Italy
| | - Roberto Carnevale
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy; Mediterranea Cardiocentro, Naples, Italy
| | - Simona Bartimoccia
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Vittoria Cammisotto
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Alessandra D'Amico
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", 00135 Rome, Italy
| | - Arianna Magna
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Cristina Nocella
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Claudio Maria Mastroianni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Pasquale Pignatelli
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy
| | - Francesco Violi
- Mediterranea Cardiocentro, Naples, Italy; Sapienza University of Rome, Rome, Italy
| | - Lorenzo Loffredo
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161 Rome, Italy.
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Cinicola BL, Palumbo IM, Pannunzio A, Carnevale R, Bartimoccia S, Cammisotto V, Capponi M, Brindisi G, Salvatori F, Barillà F, Martino F, D'Amico A, Poscia R, Spalice A, Zicari AM, Violi F, Loffredo L. Low Grade Endotoxemia and Oxidative Stress in Offspring of Patients with Early Myocardial Infarction. Antioxidants (Basel) 2023; 12:antiox12040958. [PMID: 37107333 PMCID: PMC10135978 DOI: 10.3390/antiox12040958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Background and aims: Offspring of patients with early myocardial infarction are at higher cardiovascular risk, but the underlying physio-pathological mechanism is unclear. NADPH oxidase-type 2 (NOX-2) plays a pivotal role as mediator of oxidative stress and could be involved in activating platelets in these patients. Furthermore, altered intestinal permeability and serum lipopolysaccharide (LPS) could be a trigger to promote NOX-2 activation and platelet aggregation. This study aims to evaluate the behavior of low grade endotoxemia, oxidative stress and platelet activation in offspring of patients with early myocardial infarction. Methods: We enrolled, in a cross-sectional study, 46 offspring of patients with early myocardial infarction and 86 healthy subjects (HS). LPS levels and gut permeability (assessed by zonulin), oxidative stress (assessed by serum NOX-2-derived peptide (sNOX2-dp) release, hydrogen peroxide (H2O2) production and isoprostanes), serum nitric oxide (NO) bioavailability and platelet activation (by serum thromboxane B2 (TXB2) and soluble P-Selectin (sP-Selectin)) were analyzed. Results: Compared to HS, offspring of patients with early myocardial infarction had higher values of LPS, zonulin, serum isoprostanes, sNOX2-dp H2O2, TXB2, p-selectin and lower NO bioavailability. Logistic regression analysis showed that the variables associated with offspring of patients with early myocardial infarction were LPS, TXB2 and isoprostanes. The multiple linear regression analysis confirmed that serum NOX-2, isoprostanes, p-selectin and H2O2 levels were significantly associated to LPS. Furthermore, serum LPS, isoprostanes and TXB2 levels were significantly associated with sNOX-2-dp. Conclusions: Offspring of patients with early myocardial infarction have a low grade endotoxemia that could generate oxidative stress and platelet activation increasing their cardiovascular risk. Future studies are needed to understand the role of dysbiosis in this population.
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Affiliation(s)
- Bianca Laura Cinicola
- Department of Maternal Infantile and Urological Sciences, Division of Pediatric Allergology and Immunology, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 391, 00161 Rome, Italy
| | - Ilaria Maria Palumbo
- Department of Clinical, Internistic, Anaesthetic and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy
| | - Arianna Pannunzio
- Department of Clinical, Internistic, Anaesthetic and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy
| | - Roberto Carnevale
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica, 79, 04100 Latina, Italy
- IRCCS Neuromed, Località Camerele, 86077 Pozzilli, Italy
| | - Simona Bartimoccia
- Department of Clinical, Internistic, Anaesthetic and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy
| | - Vittoria Cammisotto
- Department of Clinical, Internistic, Anaesthetic and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy
| | - Martina Capponi
- Department of Maternal Infantile and Urological Sciences, Division of Pediatric Allergology and Immunology, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Giulia Brindisi
- Department of Maternal Infantile and Urological Sciences, Division of Pediatric Allergology and Immunology, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Francesca Salvatori
- Department of Maternal Infantile and Urological Sciences, Division of Pediatric Allergology and Immunology, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Francesco Barillà
- Unit of Cardiology, University Hospital "Tor Vergata", 00133 Rome, Italy
| | - Francesco Martino
- Department of Pediatrics and Pediatric Neuropsychiatry, Sapienza University of Rome, Piazzale Aldo Moro, 5, 00185 Rome, Italy
| | - Alessandra D'Amico
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis, 15, 00135 Rome, Italy
| | - Roberto Poscia
- Unita di Ricerca Clinica e Clinical Competence-Direzione Generale, AOU Policlinico Umberto I, 00161 Rome, Italy
| | - Alberto Spalice
- Department of Maternal Infantile and Urological Sciences, Division of Pediatric Allergology and Immunology, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Anna Maria Zicari
- Department of Maternal Infantile and Urological Sciences, Division of Pediatric Allergology and Immunology, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Francesco Violi
- Department of Pediatrics and Pediatric Neuropsychiatry, Sapienza University of Rome, Piazzale Aldo Moro, 5, 00185 Rome, Italy
- Mediterranea Cardiocentro-Napoli, 80122 Naples, Italy
| | - Lorenzo Loffredo
- Department of Clinical, Internistic, Anaesthetic and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy
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Mitochondrial Dysfunction in Intensive Care Unit-Acquired Weakness and Critical Illness Myopathy: A Narrative Review. Int J Mol Sci 2023; 24:ijms24065516. [PMID: 36982590 PMCID: PMC10052131 DOI: 10.3390/ijms24065516] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/03/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
Mitochondria are key structures providing most of the energy needed to maintain homeostasis. They are the main source of adenosine triphosphate (ATP), participate in glucose, lipid and amino acid metabolism, store calcium and are integral components in various intracellular signaling cascades. However, due to their crucial role in cellular integrity, mitochondrial damage and dysregulation in the context of critical illness can severely impair organ function, leading to energetic crisis and organ failure. Skeletal muscle tissue is rich in mitochondria and, therefore, particularly vulnerable to mitochondrial dysfunction. Intensive care unit-acquired weakness (ICUAW) and critical illness myopathy (CIM) are phenomena of generalized weakness and atrophying skeletal muscle wasting, including preferential myosin breakdown in critical illness, which has also been linked to mitochondrial failure. Hence, imbalanced mitochondrial dynamics, dysregulation of the respiratory chain complexes, alterations in gene expression, disturbed signal transduction as well as impaired nutrient utilization have been proposed as underlying mechanisms. This narrative review aims to highlight the current known molecular mechanisms immanent in mitochondrial dysfunction of patients suffering from ICUAW and CIM, as well as to discuss possible implications for muscle phenotype, function and therapeutic approaches.
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20
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Han YC, Shen ZJ, Xiang RL, Lu B, Qian H, Li JY, Xie HZ. Long Noncoding RNA and mRNA Expression Profiles in Rats with LPS-induced Myocardial Dysfunction. Curr Genomics 2023; 23:412-423. [PMID: 37920555 PMCID: PMC10173418 DOI: 10.2174/1389202924666230119160258] [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: 06/02/2022] [Revised: 12/09/2022] [Accepted: 01/09/2023] [Indexed: 01/21/2023] Open
Abstract
Background Sepsis is an uncontrolled systemic inflammatory response. Long noncoding RNAs (lncRNAs) are involved in the pathogenesis of sepsis. However, little is known about the roles of lncRNAs in sepsis-induced myocardial dysfunction. Objective We aimed to determine the regulatory mechanism of lncRNAs in sepsis-induced myocardial dysfunction. Methods In this study, we analysed the lncRNA and mRNA expression profiles using microarray analysis. Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, protein-protein interaction network, and gene set enrichment analysis were used to evaluate the data. We also constructed coding and noncoding coexpression and competing endogenous RNA networks to investigate the mechanisms. Results In vivo lipopolysaccharide -induced sepsis rat model was established. A total of 387 lncRNAs and 1,952 mRNAs were identified as significantly changed in the left ventricle. Kyoto Encyclopedia of Genes and Genomes analysis of mRNAs showed that the upregulated genes were mainly enriched in the "complement and coagulation cascade pathway" and "immune-related biological processes" terms. Eight significantly changed lncRNAs detected by RT-qPCR may be responsible for these processes. A competing endogenous RNA network was generated, and the results indicated that eight lncRNAs were related to the "calcium ion binding" process. Conclusion These results demonstrate that crosstalk between lncRNAs and mRNAs may play important roles in the development of sepsis-induced myocardial dysfunction.
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Affiliation(s)
- Ye-Chen Han
- Department of Cardiology, Peking Union Medical College Hospital, No. 1 North Street, Dongdan, Beijing, 100032, China
| | - Zhu-Jun Shen
- Department of Cardiology, Peking Union Medical College Hospital, No. 1 North Street, Dongdan, Beijing, 100032, China
| | - Ruo-Lan Xiang
- School of Basic Medical Sciences, Peking University, Beijing, China
| | - Bo Lu
- Department of Gastroenterology, Peking Union Medical College Hospital, Beijing, China
| | - Hao Qian
- Department of Cardiology, Peking Union Medical College Hospital, No. 1 North Street, Dongdan, Beijing, 100032, China
| | - Jing-Yi Li
- Department of Cardiology, Peking Union Medical College Hospital, No. 1 North Street, Dongdan, Beijing, 100032, China
| | - Hong-Zhi Xie
- Department of Cardiology, Peking Union Medical College Hospital, No. 1 North Street, Dongdan, Beijing, 100032, China
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21
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Nabeebaccus AA, Reumiller CM, Shen J, Zoccarato A, Santos CXC, Shah AM. The regulation of cardiac intermediary metabolism by NADPH oxidases. Cardiovasc Res 2023; 118:3305-3319. [PMID: 35325070 PMCID: PMC9847558 DOI: 10.1093/cvr/cvac030] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/24/2021] [Accepted: 01/18/2022] [Indexed: 01/25/2023] Open
Abstract
NADPH oxidases (NOXs), enzymes whose primary function is to generate reactive oxygen species, are important regulators of the heart's physiological function and response to pathological insults. The role of NOX-driven redox signalling in pathophysiological myocardial remodelling, including processes such as interstitial fibrosis, contractile dysfunction, cellular hypertrophy, and cell survival, is well recognized. While the NOX2 isoform promotes many detrimental effects, the NOX4 isoform has attracted considerable attention as a driver of adaptive stress responses both during pathology and under physiological states such as exercise. Recent studies have begun to define some of the NOX4-modulated mechanisms that may underlie these adaptive responses. In particular, novel functions of NOX4 in driving cellular metabolic changes have emerged. Alterations in cellular metabolism are a recognized hallmark of the heart's response to physiological and pathological stresses. In this review, we highlight the emerging roles of NOX enzymes as important modulators of cellular intermediary metabolism in the heart, linking stress responses not only to myocardial energetics but also other functions. The novel interplay of NOX-modulated redox signalling pathways and intermediary metabolism in the heart is unravelling a new aspect of the fascinating biology of these enzymes which will inform a better understanding of how they drive adaptive responses. We also discuss the implications of these new findings for therapeutic approaches that target metabolism in cardiac disease.
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Affiliation(s)
- Adam A Nabeebaccus
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Christina M Reumiller
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Jie Shen
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Anna Zoccarato
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Celio X C Santos
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Ajay M Shah
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
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22
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Yin L, Tang Y, Lin X, Jiang B. Progress in the mechanism of mitochondrial dysfunction in septic cardiomyopathy. ALL LIFE 2022. [DOI: 10.1080/26895293.2022.2156622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Leijing Yin
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, People’s Republic of China
- Sepsis Translational Medicine Key Lab of Hunan Province, Hunan, People’s Republic of China
- National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan, People’s Republic of China
| | - Yuting Tang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, People’s Republic of China
- Sepsis Translational Medicine Key Lab of Hunan Province, Hunan, People’s Republic of China
- National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan, People’s Republic of China
| | - Xiaofang Lin
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, People’s Republic of China
- Sepsis Translational Medicine Key Lab of Hunan Province, Hunan, People’s Republic of China
- National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan, People’s Republic of China
| | - Bimei Jiang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, People’s Republic of China
- Sepsis Translational Medicine Key Lab of Hunan Province, Hunan, People’s Republic of China
- National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan, People’s Republic of China
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23
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Du Y, Zhong Y, Ding R, Wang X, Xia F, Zhang Q, Peng Q. New insights of necroptosis and immune infiltration in sepsis-induced myocardial dysfunction from bioinformatics analysis through RNA-seq in mice. Front Cell Infect Microbiol 2022; 12:1068324. [PMID: 36619743 PMCID: PMC9811394 DOI: 10.3389/fcimb.2022.1068324] [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: 10/12/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022] Open
Abstract
Sepsis is a life-threatening organ dysfunction caused by dysregulated host immune response to infection. Sepsis-induced myocardial dysfunction (SIMD) is a common complication in patients with severe sepsis and is associated with increased mortality. The molecular mechanisms underlying SIMD are complex and not well characterized. Excessive inflammation due to impaired regulation of immune response is one of the major causes of SIMD. Necroptosis is a novel type of cell death that is closely related to tissue injury and inflammation. However, the role of necroptosis in SIMD is not known. Therefore, in this study, we performed an in-depth bioinformatics analysis to investigate the relationship between necroptosis and SIMD using a mouse model generated by intraperitoneal injection of lipopolysaccharide (LPS) and the underlying mechanisms. Myocardial function was assessed by echocardiography. Histopathological changes in SIMD were analyzed by hematoxylin and eosin (H&E) staining. Gene expression profiles of the heart tissues from the SIMD and control mice were analyzed by bioinformatics analysis. Transcriptome sequencing demonstrated significant differences in the expression levels of 3654 genes in the heart tissues of SIMD mice including 1810 up-regulated and 1844 down-regulated genes. The necroptosis pathway genes were significantly enriched in the heart tissues from the SIMD group mice. We identified 35 necroptosis-related differentially expressed genes (NRDEGs) including MLKL and RIPK3. Cardiomyocyte necroptosis was confirmed by qRT-PCR and western blot analysis. The expression levels of most NRDEGs showed positive correlation with the infiltration levels of mast cells, macrophages, and neutrophils, and negative correlation with the infiltration levels of B cells and plasma cells in the heart tissues of the SIMD group mice. In conclusion, this study demonstrated that necroptosis was associated with changes in the infiltration levels of several immune cell types in the heart tissues of the SIMD model mice. This suggested that necroptosis influenced SIMD development by modulating the immune microenvironment. This suggested that NRDEGs are potential diagnostic biomarkers and therapeutic targets for patients with SIMD.
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Affiliation(s)
- Yan Du
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Ying Zhong
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Ruilin Ding
- Institute of Drug Clinical Trial/GCP Center, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Xiaojie Wang
- Department of Endocrinology, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Fenfen Xia
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Qian Zhang
- Department of Infectious Diseases, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,*Correspondence: Qian Zhang, ; Qing Peng,
| | - Qing Peng
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China,*Correspondence: Qian Zhang, ; Qing Peng,
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Ma W, Zhang S, Li Y, Chen T, Yang Q, Feng X. Adiponectin alleviates non-alcoholic fatty liver injury via regulating oxidative stress in liver cells. Minerva Med 2022; 113:990-999. [PMID: 32996726 DOI: 10.23736/s0026-4806.20.06734-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND The aim of the present study was to investigate the role of adiponectin in non-alcoholic fatty liver cell model and its mechanism. METHODS The serum were collected from patients with non-alcoholic fatty liver disease and healthy controls. Then the expression of APN in the serum was detected using APN kit. Furthermore, an in vitro model of NAFLD was established using mixed fatty acids treated HepG2 cells, and APN was highly expressed in the culture solution to a concentration of 10 μg/mL. The normal control group (Normal) was normal cells, the model group (NAFLD) was mixed fatty acids treated HepG2 cells, the experimental group (NAFLD+APN) was model cells transfected with high APN expression, and the negative control group (NAFLD+PBS) was model cells transfected with PBS. The expression of NOX2 in each group was detected by Western blot. The corresponding kit was used to detect the level of triglyceride (TG), the activity of superoxide dismutase (SOD), the content of malondialdehyde (MDA), and the ratio of GSH/GSSG in each group of cells. RESULTS The expression level of APN was greatly decreased in the serum of NAFLD patients (P<0.01), and the TG content was significantly increased in HepG2 cells treated with fatty acids (P<0.001), indicating successful modeling. The cells had high expression of APN (P<0.001) showed low expression of NOX2 (P<0.001). The kit test results showed that the high expression of APN could reverse the decrease of SOD activity, the increase of MDA level, the decrease of GSH/GSSG ratio and the increase of TG content (P<0.001), all of which were restored to the modeling level after application of NOX2's activator TBCA. CONCLUSIONS APN was lowly expressed in the serum of NAFLD patients. Its effect mechanism was to alleviate the injury of NAFLD cells by reducing oxidative stress via regulating NOX2 expression.
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Affiliation(s)
- Wenwen Ma
- Department of Infectious Diseases, Shengli Oilfield Central Hospital, Dongying, China
| | - Shanshan Zhang
- Department of General Medical Science, Shengli Oilfield Central Hospital, Dongying, China
| | - Yi Li
- Department of Infectious Diseases, Shengli Oilfield Central Hospital, Dongying, China
| | - Tansheng Chen
- Department of Infectious Diseases, Shengli Oilfield Central Hospital, Dongying, China
| | - Qin Yang
- Department of Laboratory Medicine, Shengli Oilfield Central Hospital, Dongying, China
| | - Xue Feng
- Department of Infectious Diseases, Shengli Oilfield Central Hospital, Dongying, China -
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25
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Protection of zero-valent iron nanoparticles against sepsis and septic heart failure. J Nanobiotechnology 2022; 20:405. [PMID: 36064371 PMCID: PMC9444118 DOI: 10.1186/s12951-022-01589-1] [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: 01/15/2022] [Accepted: 08/08/2022] [Indexed: 11/23/2022] Open
Abstract
Background Septic heart failure accounts for high mortality rates globally. With a strong reducing capacity, zero-valent iron nanoparticles (nanoFe) have been applied in many fields. However, the precise roles and mechanisms of nanoFe in septic cardiomyopathy remain unknown. Results NanoFe was prepared via the liquid-phase reduction method and functionalized with the biocompatible polymer sodium carboxymethylcellulose (CMC). We then successfully constructed a mouse model of septic myocardial injury by challenging with cecal ligation and puncture (CLP). Our findings demonstrated that nanoFe has a significant protective effect on CLP-induced septic myocardial injury. This may be achieved by attenuating inflammation and oxidative stress, improving mitochondrial function, regulating endoplasmic reticulum stress, and activating the AMPK pathway. The RNA-seq results supported the role of nanoFe treatment in regulating a transcriptional profile consistent with its role in response to sepsis. Conclusions The results provide a theoretical basis for the application strategy and combination of nanoFe in sepsis and septic myocardial injury. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01589-1.
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Lin S, Luo B, Ma J. Multiple datasets to explore the molecular mechanism of sepsis. BMC Genom Data 2022; 23:66. [PMID: 35971090 PMCID: PMC9380322 DOI: 10.1186/s12863-022-01078-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 07/25/2022] [Indexed: 11/10/2022] Open
Abstract
Background This study aimed to identify potential biomarkers, by means of bioinformatics, affecting the occurrence and development of septic shock. Methods Download GSE131761 septic shock data set from NCBI geo database, including 33 control samples and 81 septic shock samples. GSE131761 and sequencing data were used to identify and analyze differentially expressed genes in septic shock patients and normal subjects. In addition, with sequencing data as training set and GSE131761 as validation set, a diagnostic model was established by lasso regression to identify key genes. ROC curve verified the stability of the model. Finally, immune infiltration analysis, enrichment analysis, transcriptional regulation analysis and correlation analysis of key genes were carried out to understand the potential molecular mechanism of key genes affecting septic shock. Results A total of 292 differential genes were screened out from the self-test data, 294 differential genes were screened out by GSE131761, Lasso regression was performed on the intersection genes of the two, a diagnostic model was constructed, and 5 genes were identified as biomarkers of septic shock. These 5 genes were SIGLEC10, VSTM1, GYPB, OPTN, and GIMAP7. The five key genes were strongly correlated with immune cells, and the ROC results showed that the five genes had good predictive performance on the occurrence and development of diseases. In addition, the key genes were strongly correlated with immune regulatory genes. Conclusion In this study, a series of algorithms were used to identify five key genes that are associated with septic shock, which may become potential candidate targets for septic shock diagnosis and treatment. Trial registration Approval number:2019XE0149-1.
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Sun M, Zhao H, Jin Z, Lei W, Deng C, Yang W, Lu C, Hou Y, Zhang Y, Tang R, Zhao L, Zhang S, Yang Y. Silibinin protects against sepsis and septic myocardial injury in an NR1H3-dependent pathway. Free Radic Biol Med 2022; 187:141-157. [PMID: 35640818 DOI: 10.1016/j.freeradbiomed.2022.05.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/23/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022]
Abstract
Cardiac dysfunction resulting from sepsis causes high morbidity and mortality. Silibinin (SIL) is a secondary metabolite isolated from the seed extract of the milk thistle plant with various properties, including anti-inflammatory, anti-fibrotic, and anti-oxidative activities. This study, for the first time, examined the effects and mechanisms of SIL pretreatment, posttreatment and in combination with classical antibiotics in septic myocardial injury. The survival rate, sepsis score, anal temperature, routine blood parameters, blood biochemical parameters, cardiac function indicators, pathological indicators of myocardial injury, NR1H3 signaling pathway, and several sepsis-related signaling pathways were detected 8 h following cecal ligation and puncture (CLP). Our results showed that SIL pretreatment showed a significant protective effect on sepsis and septic myocardial injury, which was explained by the attenuation of inflammation, inhibition of oxidative stress, improvement of mitochondrial function, regulation of endoplasmic reticulum stress (ERS), and activation of the NR1H3 pathway. SIL posttreatment and the combination of SIL and azithromycin (AZI) showed a certain therapeutic effect. RNA-seq detection further clarified the myocardial protective mechanisms of SIL. Taken together, this study provides a theoretical basis for the application strategy and combination of SIL in septic myocardial injury.
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Affiliation(s)
- Meng Sun
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an, China; Department of Cardiology, The First Hospital of Shanxi Medical University, 85 Jiefang South Road, Taiyuan, China
| | - Huadong Zhao
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an, China
| | - Zhenxiao Jin
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi'an, 710032, China
| | - Wangrui Lei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Chao Deng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, China
| | - Wenwen Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Chenxi Lu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Yuxuan Hou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Yan Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Ran Tang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Lin Zhao
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi'an, 710032, China
| | - Shaofei Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, China.
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Zhang M, Sun Y, Ding C, Hong S, Li N, Guan Y, Zhang L, Dong X, Cao J, Yao W, Ren W, Yao S. Metformin mitigates gas explosion‑induced blast lung injuries through AMPK‑mediated energy metabolism and NOX2‑related oxidation pathway in rats. Exp Ther Med 2022; 24:529. [PMID: 35837050 PMCID: PMC9257965 DOI: 10.3892/etm.2022.11456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/31/2022] [Indexed: 11/17/2022] Open
Abstract
Gas explosions are a recurrent event in coal mining that cause severe pulmonary damage due to shock waves, and there is currently no effective targeted treatment. To illustrate the mechanism of gas explosion-induced lung injury and to explore strategies for blast lung injury (BLI) treatment, the present study used a BLI rat model and supplementation with metformin (MET), an AMP-activated protein kinase (AMPK) activator, at a dose of 10 mg/kg body weight by intraperitoneal injection. Protein expression levels were detected by western blotting. Significantly decreased expression of phosphorylated (p)-AMPK, peroxisome proliferator-activated receptor-γ coactivator-1α (PGC1α) and metabolic activity were observed in the BLI group compared with those in the control group. However, the mitochondrial stability, metabolic activity and expression of p-AMPK and PGC1α were elevated following MET treatment. These results suggested that MET could attenuate gas explosion-induced BLI by improving mitochondrial homeostasis. Meanwhile, high expression of nicotinamide adenine dinucleotide phosphate oxidase (NOX2) and low expression of catalase (CAT) were observed in the BLI group. The expression levels of NOX2 and CAT were restored in the BLI + MET group relative to changes in the BLI group, and the accumulation of oxidative stress was successfully reversed following MET treatment. Overall, these findings revealed that MET could alleviate BLI by activating the AMPK/PGC1α pathway and inhibiting oxidative stress caused by NOX2 activation.
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Affiliation(s)
- Miao Zhang
- Research Center for Precision Prevention and Control of Occupational Hazards, School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Yunzhe Sun
- Research Center for Precision Prevention and Control of Occupational Hazards, School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Chunjie Ding
- Research Center for Precision Prevention and Control of Occupational Hazards, School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Shan Hong
- Research Center for Precision Prevention and Control of Occupational Hazards, School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Ning Li
- Department of Occupational and Environmental Health, School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063000, P.R. China
| | - Yi Guan
- Department of Occupational and Environmental Health, School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063000, P.R. China
| | - Lin Zhang
- Key Laboratory of Birth Regulation and Control Technology, National Health Commission of China, Maternal and Child Care Hospital of Shandong Province, Shandong University, Jinan, Shandong 250001, P.R. China
| | - Xinwen Dong
- Research Center for Precision Prevention and Control of Occupational Hazards, School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Jia Cao
- Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing 400038, P.R. China
| | - Wu Yao
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Wenjie Ren
- Research Center for Precision Prevention and Control of Occupational Hazards, School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Sanqiao Yao
- Research Center for Precision Prevention and Control of Occupational Hazards, School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
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Ibrahim WW, Abdel Rasheed NO. Diapocynin neuroprotective effects in 3-nitropropionic acid Huntington's disease model in rats: emphasis on Sirt1/Nrf2 signaling pathway. Inflammopharmacology 2022; 30:1745-1758. [PMID: 35639233 PMCID: PMC9499906 DOI: 10.1007/s10787-022-01004-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/30/2022] [Indexed: 04/12/2023]
Abstract
Background and Aim Huntington's disease (HD) is a rare inherited disease portrayed with marked cognitive and motor decline owing to extensive neurodegeneration. NADPH oxidase is considered as an important contributor to the oxidative injury in several neurodegenerative disorders including HD. Thus, the present study explored the possible neuroprotective effects of diapocynin, a specific NADPH oxidase inhibitor, against 3-nitropropionic acid (3-NP) model of HD in rats. Methods Animals received diapocynin (10 mg/kg/day, p.o), 30 min before 3-NP (10 mg/kg/day, i.p) over a period of 14 days. Results Diapocynin administration attenuated 3-NP-induced oxidative stress with significant increase in reduced glutathione, glutathione-S-transferase, nuclear factor erythroid 2-related factor 2, and brain-derived neurotrophic factor striatal contents contrary to NADPH oxidase (NOX2; gp91phox subunit) diminished expression. Moreover, diapocynin mitigated 3-NP-associated neuroinflammation
and glial activation with prominent downregulation of nuclear factor-Кβ p65 and marked decrement of inducible nitric oxide synthase content in addition to decreased immunoreactivity of ionized calcium binding adaptor molecule 1 and glial fibrillary acidic protein; markers of microglial and astroglial activation, respectively. Treatment with diapocynin hindered 3-NP-induced apoptosis with prominent decrease in tumor suppressor protein and Bcl-2-associated X protein contents whereas the anti-apoptotic marker; B-cell lymphoma-2 content was noticeably increased. Diapocynin neuroprotective effects could be attributed to silent information regulator 1 upregulation which curbed 3-NP-associated hazards resulting in improved motor functions witnessed during open field, rotarod, and grip strength tests as well as attenuated 3-NP-associated histopathological derangements. Conclusion The present findings indicated that diapocynin could serve as an auspicious nominee for HD management. Graphical abstract ![]()
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Affiliation(s)
- Weam W Ibrahim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El Aini St., Cairo, 11562, Egypt.
| | - Nora O Abdel Rasheed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El Aini St., Cairo, 11562, Egypt
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miR-340-5p Alleviates Oxidative Stress Injury by Targeting MyD88 in Sepsis-Induced Cardiomyopathy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2939279. [PMID: 35571255 PMCID: PMC9095363 DOI: 10.1155/2022/2939279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/07/2022] [Accepted: 03/26/2022] [Indexed: 11/17/2022]
Abstract
Background Sepsis-induced cardiomyopathy (SIC) is a sort of severe disease in the intensive care unit. This research focuses on exploring the influence of miR-340-5p on SIC and its specific mechanism. Methods Mice were administered with lipopolysaccharide (LPS) to construct a SIC animal model. Mice were intramyocardially injected with Adenoassociated Virus- (AAV-) 9 containing the miR-340-5p precursor to make the miR-340-5p overexpression in the myocardium. The expression level of myocardial miR-340-5p was evaluated by qRT-PCR. The cardiac function was measured by echocardiography, the myocardial morphology was observed by hematoxylin-eosin (HE) staining, and the oxidative stress level was detected by 4-hydroxynonenal (4-HNE) immunohistochemical staining and malondialdehyde (MDA) assay in mice. The cells were pretreated with miR-340-5p mimic, mimic-NC, miR-340-5p inhibitor, inhibitor-NC, MyD88 siRNA, or si-NC and then administered with LPS or PBS. The cell viability was measured with the CCK-8 assay. The level of intracellular oxidative stress was evaluated using reactive oxygen species (ROS), MDA, and glutathione (GSH) detection. The MyD88 level was assessed via Western blotting analysis. The interaction of miR-340-5p with the MyD88 mRNA was confirmed via dual-luciferase reporter assay and RNA pull-down assay. Results The miR-340-5p overexpression partially alleviated the increase of the MyD88 level, impairment of cardiac function, and oxidative stress injury in the SIC animal model. In the SIC cell model, miR-340-5p mimic pretreatment partially relieved oxidative stress injury, while the miR-340-5p inhibitor had the opposite effect. Besides, the miR-340-5p mimic and inhibitor could reduce and further increase the MyD88 level in the SIC cell model, respectively. Dual-luciferase reporter and RNA pull-down experiments confirmed the interaction between the MyD88 mRNA and miR-340-5p. Finally, it was found that MyD88 siRNA pretreatment also partially alleviates the oxidative stress injury in the SIC cell model. Conclusion In sum, our study demonstrated that miR-340-5p can improve myocardial oxidative stress injury by targeting MyD88 in SIC.
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Lipopolysaccharide Modifies Sodium Current Kinetics through ROS and PKC Signalling in Induced Pluripotent Stem-Derived Cardiomyocytes from Brugada Syndrome Patient. J Cardiovasc Dev Dis 2022; 9:jcdd9040119. [PMID: 35448095 PMCID: PMC9025958 DOI: 10.3390/jcdd9040119] [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] [Received: 01/24/2022] [Revised: 03/17/2022] [Accepted: 04/11/2022] [Indexed: 02/01/2023] Open
Abstract
Studies have suggested a connection between inflammation and arrhythmogenesis of Brugada syndrome (BrS). However, experimental studies regarding the roles of inflammation in the arrhythmogenesis of BrS and its underlying mechanism are still lacking. This study aimed to investigate the influence of inflammation on BrS-phenotype features using human-induced stem cell-derived cardiomyocytes (hiPSC-CMs) from a BrS-patient carrying an SCN10A variant (c.3749G > A). After LPS treatment, the peak sodium current decreased significantly in SCN10A-hiPSC-CMs, but not in healthy donor-hiPSC-CMs. LPS also changed sodium channel gating kinetics, including activation, inactivation, and recovery from inactivation. NAC (N-acetyl-l-cysteine), a blocker of ROS (reactive oxygen species), failed to affect the sodium current, but prevented the LPS-induced reduction of sodium channel currents and changes in gating kinetics, suggesting a contribution of ROS to the LPS effects. Hydrogen peroxide (H2O2), a main form of ROS in cells, mimicked the LPS effects on sodium channel currents and gating kinetics, implying that ROS might mediate LPS-effects on sodium channels. The effects of H2O2 could be attenuated by a PKC blocker chelerythrine, indicating that PKC is a downstream factor of ROS. This study demonstrated that LPS can exacerbate the loss-of-function of sodium channels in BrS cells. Inflammation may play an important role in the pathogenesis of BrS.
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Petroni RC, de Oliveira SJS, Fungaro TP, Ariga SKK, Barbeiro HV, Soriano FG, de Lima TM. Short-term Obesity Worsens Heart Inflammation and Disrupts Mitochondrial Biogenesis and Function in an Experimental Model of Endotoxemia. Inflammation 2022; 45:1985-1999. [PMID: 35411498 DOI: 10.1007/s10753-022-01669-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/22/2022] [Accepted: 03/31/2022] [Indexed: 11/28/2022]
Abstract
Cardiomyopathy is a well-known complication of sepsis that may deteriorate when accompanied by obesity. To test this hypothesis we fed C57black/6 male mice for 6 week with a high fat diet (60% energy) and submitted them to endotoxemic shock using E. coli LPS (10 mg/kg). Inflammatory markers (cytokines and adhesion molecules) were determined in plasma and heart tissue, as well as heart mitochondrial biogenesis and function. Obesity markedly shortened the survival rate of mouse after LPS injection and induced a persistent systemic inflammation since TNFα, IL-1β, IL-6 and resistin plasma levels were higher 24 h after LPS injection. Heart tissue inflammation was significantly higher in obese mice, as detected by elevated mRNA expression of pro-inflammatory cytokines (IL-1β, IL-6 and TNFα). Obese animals presented reduced maximum respiratory rate after LPS injection, however fatty acid oxidation increased in both groups. LPS decreased mitochondrial DNA content and mitochondria biogenesis factors, such as PGC1α and PGC1β, in both groups, while NRF1 expression was significantly stimulated in obese mice hearts. Mitochondrial fusion/fission balance was only altered by obesity, with no influence of endotoxemia. Obesity accelerated endotoxemia death rate due to higher systemic inflammation and decreased heart mitochondrial respiratory capacity.
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Affiliation(s)
- Ricardo Costa Petroni
- Emergency Medicine Department, Medical School, University of São Paulo, Av. Dr. Arnaldo, 455 - Cerqueira César, São Paulo, São Paulo, CEP, 01246-903, Brazil
| | - Suelen Jeronymo Souza de Oliveira
- Emergency Medicine Department, Medical School, University of São Paulo, Av. Dr. Arnaldo, 455 - Cerqueira César, São Paulo, São Paulo, CEP, 01246-903, Brazil
| | - Thais Pineda Fungaro
- Emergency Medicine Department, Medical School, University of São Paulo, Av. Dr. Arnaldo, 455 - Cerqueira César, São Paulo, São Paulo, CEP, 01246-903, Brazil
| | - Suely K K Ariga
- Emergency Medicine Department, Medical School, University of São Paulo, Av. Dr. Arnaldo, 455 - Cerqueira César, São Paulo, São Paulo, CEP, 01246-903, Brazil
| | - Hermes Vieira Barbeiro
- Emergency Medicine Department, Medical School, University of São Paulo, Av. Dr. Arnaldo, 455 - Cerqueira César, São Paulo, São Paulo, CEP, 01246-903, Brazil
| | - Francisco Garcia Soriano
- Emergency Medicine Department, Medical School, University of São Paulo, Av. Dr. Arnaldo, 455 - Cerqueira César, São Paulo, São Paulo, CEP, 01246-903, Brazil
| | - Thais Martins de Lima
- Emergency Medicine Department, Medical School, University of São Paulo, Av. Dr. Arnaldo, 455 - Cerqueira César, São Paulo, São Paulo, CEP, 01246-903, Brazil.
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Gandhirajan A, Roychowdhury S, Vachharajani V. Sirtuins and Sepsis: Cross Talk between Redox and Epigenetic Pathways. Antioxidants (Basel) 2021; 11:antiox11010003. [PMID: 35052507 PMCID: PMC8772830 DOI: 10.3390/antiox11010003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 12/19/2022] Open
Abstract
Sepsis and septic shock are the leading causes of death among hospitalized patients in the US. The immune response in sepsis transitions from a pro-inflammatory and pro-oxidant hyper-inflammation to an anti-inflammatory and cytoprotective hypo-inflammatory phase. While 1/3rd sepsis-related deaths occur during hyper-, a vast majority of sepsis-mortality occurs during the hypo-inflammation. Hyper-inflammation is cytotoxic for the immune cells and cannot be sustained. As a compensatory mechanism, the immune cells transition from cytotoxic hyper-inflammation to a cytoprotective hypo-inflammation with anti-inflammatory/immunosuppressive phase. However, the hypo-inflammation is associated with an inability to clear invading pathogens, leaving the host susceptible to secondary infections. Thus, the maladaptive immune response leads to a marked departure from homeostasis during sepsis-phases. The transition from hyper- to hypo-inflammation occurs via epigenetic programming. Sirtuins, a highly conserved family of histone deacetylators and guardians of homeostasis, are integral to the epigenetic programming in sepsis. Through their anti-inflammatory and anti-oxidant properties, the sirtuins modulate the immune response in sepsis. We review the role of sirtuins in orchestrating the interplay between the oxidative stress and epigenetic programming during sepsis.
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Affiliation(s)
- Anugraha Gandhirajan
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (A.G.); (S.R.)
| | - Sanjoy Roychowdhury
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (A.G.); (S.R.)
| | - Vidula Vachharajani
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; (A.G.); (S.R.)
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Correspondence:
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Liu S, Chong W. Roles of LncRNAs in Regulating Mitochondrial Dysfunction in Septic Cardiomyopathy. Front Immunol 2021; 12:802085. [PMID: 34899764 PMCID: PMC8652231 DOI: 10.3389/fimmu.2021.802085] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 11/10/2021] [Indexed: 01/20/2023] Open
Abstract
Sepsis is an abnormal systemic inflammatory response of the host immune system to infection and can lead to fatal multiorgan dysfunction syndrome. Epidemiological studies have shown that approximately 10-70% of sepsis cases can lead to septic cardiomyopathy. Since the pathogenesis of septic cardiomyopathy is not clear, it is difficult for medical doctors to treat the disease. Therefore, finding effective interventions to prevent and reduce myocardial damage in septic cardiomyopathy is clinically significant. Epigenetics is the study of stable genetic phenotype inheritance that does not involve changing gene sequences. Epigenetic inheritance is affected by both gene and environmental regulation. Epigenetic studies focus on the modification and influence of chromatin structure, mainly including chromatin remodelling, DNA methylation, histone modification and noncoding RNA (ncRNA)-related mechanisms. Recently, long ncRNA (lncRNA)-related mechanisms have been the focus of epigenetic studies. LncRNAs are expected to become important targets to prevent, diagnose and treat human diseases. As the energy metabolism centre of cells, mitochondria are important targets in septic cardiomyopathy. Intervention measures to prevent and treat mitochondrial damage are of great significance for improving the prognosis of septic cardiomyopathy. LncRNAs play important roles in life activities. Recently, studies have focused on the involvement of lncRNAs in regulating mitochondrial dysfunction. However, few studies have revealed the involvement of lncRNAs in regulating mitochondrial dysfunction in septic cardiomyopathy. In this article, we briefly review recent research in this area.
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Affiliation(s)
- Shuang Liu
- Department of Emergency, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wei Chong
- Department of Emergency, The First Affiliated Hospital of China Medical University, Shenyang, China
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Ferroportin-mediated ferroptosis involved in new-onset atrial fibrillation with LPS-induced endotoxemia. Eur J Pharmacol 2021; 913:174622. [PMID: 34748769 DOI: 10.1016/j.ejphar.2021.174622] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 12/29/2022]
Abstract
Sepsis is a known risk factor for new-onset atrial fibrillation (AF), and previous studies have demonstrated that ferroptosis participates in sepsis-induced organ injury development. Nevertheless, the role of ferroptosis in new-onset AF with sepsis remains largely unknown. This study aims to investigate the underlying mechanisms linking ferroptosis and AF caused by sepsis. LPS-induced endotoxemia is often used to model the acute inflammatory response associated with sepsis. Herein, we reported that ferroptosis was significantly activated in LPS-induced endotoxemia rat model. We also observed that ferroportin (Fpn), the only identified mammalian non-heme iron exporter, was downregulated in the atrium of endotoxemia model. Vulnerability to AF was also significantly increased in a endotoxemia rat model. Additionally, Fpn knockdown by shFpn further increased intracellular iron concentration and oxidative stress and exaggerated the AF vulnerability, which was alleviated by ferroptosis inhibition. Mechanistically, silencing Fpn worsened the alterations in calcium handling proteins expression in a endotoxemia rat model. These findings suggest that Fpn-mediated ferroptosis is involved in the new-onset AF with LPS-induced endotoxemia via worsening the calcium handling proteins dysregulation and provides a novel and promising strategy for preventing AF development in sepsis.
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Lv C, Wang G, Chen A. Speckle Tracking Algorithm-Based Ultrasonic Cardiogram in Evaluation of the Efficacy of Dexmedetomidine Combined with Bundle Strategy on Patients with Severe Sepsis. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:7179632. [PMID: 34733457 PMCID: PMC8560258 DOI: 10.1155/2021/7179632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/07/2021] [Indexed: 11/17/2022]
Abstract
The research aimed to study the effect of dexmedetomidine combined with bundle strategy on the cardiac function of patients with severe sepsis through pyramid speckle tracking algorithm-based echocardiography, expected to provide reference for its clinical treatment. 98 patients with severe sepsis or septic shock admitted to the hospital were selected as the research subjects, and they were equally divided into experimental group (dexmedetomidine + bundle strategy) and control group (dexmedetomidine + routine nursing), with 49 in each. Ultrasonic cardiogram examination was performed on patients before and after treatment, and the pyramid-based speckle tracking (PST) algorithm was designed and used. The results showed that the running time of the PST algorithm (105.25 s) was less than that of the BM algorithm (336.41 s), and the difference was statistically significant (P < 0.05), and the systolic blood pressure, diastolic blood pressure, left ventricular wall, and heart rate of the experimental group before treatment were not significantly different from those of the control group (P > 0.05). The ultrasound index results found that the ejection fraction (EF) and fractional shortening (FS) of the two groups of patients showed a downward trend over time (1-7 days), while the E/A ratio showed an upward trend, and the E/A ratio of the experimental group was significantly greater than the control group (P < 0.05). The systolic blood pressure, diastolic blood pressure, left ventricular wall, and heart rate of the two groups of patients showed a downward trend over time (1-7 days), and the systolic blood pressure, diastolic blood pressure, left ventricular wall, and heart rate of the experimental group were significantly lower than those of the control group (P < 0.05). The 28-day mechanical ventilation time (6.97 ± 3.11 days), intensive care unit (ICU) stay time (9.18 ± 2.86 days), and the 28-day mortality rate (15.31%) of the experimental group were lower than those of the control group (6.97 ± 3.11 days; 13.08 ± 2.53 days; 31.95%) (P < 0.05). In conclusion, the PST algorithm can effectively improve the quality of echocardiography and assist physicians in clinical evaluation, and dexmedetomidine combined with bundle strategy can stabilize the heart rate and reduce myocardial oxygen consumption in severe sepsis, while effectively shortens the recovery time and improves the overall prognosis.
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Affiliation(s)
- Chang'an Lv
- Department of Critical Care Medicine, Affiliated Hospital of Jiangnan University, Wuxi 214062, China
| | - Guan Wang
- Hospitalization Management Section, Affiliated Hongqi Hospital of Mudanjiang Medical University, Mudanjiang 157011, China
| | - Aidong Chen
- Digestive Department, Affiliated Hongqi Hospital of Mudanjiang Medical University, Mudanjiang 157011, China
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Inhibition of Peroxiredoxin 6 PLA2 Activity Decreases Oxidative Stress and the Severity of Acute Lung Injury in the Mouse Cecal Ligation and Puncture Model. Antioxidants (Basel) 2021; 10:antiox10111676. [PMID: 34829547 PMCID: PMC8615065 DOI: 10.3390/antiox10111676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/13/2021] [Accepted: 10/13/2021] [Indexed: 12/17/2022] Open
Abstract
The use of agents to inhibit the production of reactive oxygen species (ROS) has been proposed for the treatment of Acute Lung Injury (ALI). However, this approach also inhibits the bactericidal activity of polymorphonuclear leucocytes (PMN) and other cells, raising the possibility of aggravating lung injury in ALI associated with bacterial infection. We used the cecal ligation and puncture (CLP) model of ALI associated with sepsis to investigate the effect of inhibiting NADPH oxidase 2 (NOX2)-derived ROS production, the main source of ROS in lungs. A phospholipase A2 inhibitor called peroxiredoxin 6 inhibitory peptide-2 (PIP-2) was used to inhibit NOX2 activation; the peptide prevents liberation of Rac, a necessary NOX2 co-factor. At 18 h after intravenous treatment with 2 µg PIP-2 /gram body weight (wt), the number of colony-forming bacteria in lungs and peritoneal fluid of mice with CLP was approximately doubled as compared to untreated mice. Treatment with 10 µg PIP-2/g body wt resulted in 100% mortality within 18 h. Antibiotic treatment abolished both the increase in lung bacteria with low dose PIP-2 and the increased mortality with high dose PIP-2. Treatment with PIP-2 plus antibiotics resulted in significantly improved lung histology, decreased PMN infiltration, decreased lung fluid accumulation, and decreased oxidative lung injury compared to antibiotics alone. We conclude that the administration of PIP-2 provides partial protection against lung injury in a model of ALI due to bacterial infection, while concurrent antibiotic treatment abolishes the deleterious effects of PIP-2 on lung bacterial clearance. These results suggest that addition of PIP-2 to the antibiotic regimen is beneficial for treatment of ALI associated with bacterial infection.
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Hong T, Li S, Guo X, Wei Y, Zhang J, Su X, Zhou M, Jin H, Miao Q, Shen L, Zhu M, He B. IL-13 Derived Type 2 Innate Lymphocytes Ameliorates Cardiomyocyte Apoptosis Through STAT3 Signaling Pathway. Front Cell Dev Biol 2021; 9:742662. [PMID: 34616745 PMCID: PMC8488199 DOI: 10.3389/fcell.2021.742662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 08/30/2021] [Indexed: 12/23/2022] Open
Abstract
The involvement of cardiomyopathy during sepsis means higher mortality and prolonged length of hospital stay. Many efforts have been made to alleviate the apoptosis of cardiomyocytes in sepsis. The huge potential of IL-13 in tissue repair has attracted increasing attention. In the present study, we used LPS-treated mice or primary cardiomyocytes as a sepsis model to explore the anti-apoptotic ability of IL-13. It was found that an increased level of exogenous IL-13 was beneficial to the recovery of heart function in sepsis, and this anti-apoptotic effect of IL-13 was probably through enhancing the phosphorylation of STAT3 Ser727. In addition, we identified that the heart protective effect of IL-13 was associated with type 2 innate lymphocytes (ILC2). All these findings may provide a potential promising treatment for sepsis-induced cardiomyopathy.
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Affiliation(s)
- Ting Hong
- Department of Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Saiqi Li
- Department of Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoyu Guo
- Department of Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yazhong Wei
- Department of Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jingjing Zhang
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaohui Su
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Miao Zhou
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Haizhen Jin
- Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Qing Miao
- Departments of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Shen
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Minfang Zhu
- Department of Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Bin He
- Department of Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
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Abstract
PURPOSE The proteome during lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice is unclear. MATERIALS AND METHODS In this study, eight-week-old male C57BL/6 mice were intraperitoneally injected with LPS and sacrificed 18 hours after LPS administration to identify protein expression levels in lung tissue using tandem mass tag (TMT) analysis for relative quantification. Hematoxylin-eosin (HE) staining was used to evaluate lung injury in mice. Immunohistochemical staining was used to calculate the production of myeloperoxidase (MPO) and TUNEL staining was performed to detect apoptosis. GO functional clustering and KEGG pathway enrichment analyses were performed to determine functions of differentially expressed proteins (DEPs) and transduction pathways. Domain annotation and subcellular localization analysis of the DEPs were also performed. Furthermore, parallel reaction monitoring (PRM) analysis was used to verify the top 30 DEPs. RESULTS A total of 5188 proteins were found to be expressed in lung tissues from LPS- and saline-treated mice. Among these proteins, 293 were differentially expressed between the two groups; 255 proteins were upregulated in the LPS-treated ALI mice, while 38 were downregulated. GO analysis showed that the DEPs are mainly extracellular, and KEGG analysis suggested that the DEPs are mainly enriched in the NOD-like receptor signaling pathway, complement and coagulation cascades and natural killer cell-mediated cytotoxicity. Enrichment of the DEPs is mainly peptidase S1A, serine proteases, peptidase S1, and the serpin domain. 26.6% of the DEPs are in the nucleus, 24.6% are in the cytosol, 19.1% are in the extracellular space, and 18.8% are in the plasma membrane. PRM validation showed that the trend of 30 DEPs was same with TMT analysis. Among these, Cytochrome b-245 heavy chain (Cybb), Monocyte differentiation antigen CD14 (Cd14) and Neutrophil gelatinase-associated lipocalin (NGAL) were the most obvious change. CONCLUSIONS Our results may help to identify markers and therapeutic targets for LPS-induced ALI.
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Affiliation(s)
- Shengsong Chen
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, P. R. China.,Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Center for Respiratory Medicine, Beijing, P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing , P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Beijing, P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, P. R. China
| | - Yi Zhang
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Center for Respiratory Medicine, Beijing, P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing , P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Beijing, P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, P. R. China
| | - Qingyuan Zhan
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Center for Respiratory Medicine, Beijing, P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing , P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Beijing, P. R. China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, WHO Collaborating Centre for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, P. R. China
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40
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Cheng CK, Huang Y. The gut-cardiovascular connection: new era for cardiovascular therapy. MEDICAL REVIEW (BERLIN, GERMANY) 2021; 1:23-46. [PMID: 37724079 PMCID: PMC10388818 DOI: 10.1515/mr-2021-0002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/02/2021] [Indexed: 09/20/2023]
Abstract
Our gut microbiome is constituted by trillions of microorganisms including bacteria, archaea and eukaryotic microbes. Nowadays, gut microbiome has been gradually recognized as a new organ system that systemically and biochemically interact with the host. Accumulating evidence suggests that the imbalanced gut microbiome contributes to the dysregulation of immune system and the disruption of cardiovascular homeostasis. Specific microbiome profiles and altered intestinal permeability are often observed in the pathophysiology of cardiovascular diseases. Gut-derived metabolites, toxins, peptides and immune cell-derived cytokines play pivotal roles in the induction of inflammation and the pathogenesis of dysfunction of heart and vasculature. Impaired crosstalk between gut microbiome and multiple organ systems, such as gut-vascular, heart-gut, gut-liver and brain-gut axes, are associated with higher cardiovascular risks. Medications and strategies that restore healthy gut microbiome might therefore represent novel therapeutic options to lower the incidence of cardiovascular and metabolic disorders.
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Affiliation(s)
- Chak Kwong Cheng
- School of Biomedical Sciences and Li Ka Shing Institute of Health Science; The Chinese University of Hong Kong, Hong Kong SAR999077, China
- Heart and Vascular Institute and Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR999077, China
| | - Yu Huang
- School of Biomedical Sciences and Li Ka Shing Institute of Health Science; The Chinese University of Hong Kong, Hong Kong SAR999077, China
- Heart and Vascular Institute and Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR999077, China
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41
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Bakr MH, Radwan E, Shaltout AS, Farrag AA, Mahmoud AR, Abd-Elhamid TH, Ali M. Chronic exposure to tramadol induces cardiac inflammation and endothelial dysfunction in mice. Sci Rep 2021; 11:18772. [PMID: 34548593 PMCID: PMC8455605 DOI: 10.1038/s41598-021-98206-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 09/06/2021] [Indexed: 11/21/2022] Open
Abstract
Tramadol is an opioid extensively used to treat moderate to severe pain; however, prolonged therapy is associated with several tissues damage. Chronic use of tramadol was linked to increased hospitalizations due to cardiovascular complications. Limited literature has described the effects of tramadol on the cardiovascular system, so we sought to investigate these actions and elucidate the underlying mechanisms. Mice received tramadol hydrochloride (40 mg/kg body weight) orally for 4 successive weeks. Oxidative stress, inflammation, and cardiac toxicity were assessed. In addition, eNOS expression was evaluated. Our results demonstrated marked histopathological alteration in heart and aortic tissues after exposure to tramadol. Tramadol upregulated the expression of oxidative stress and inflammatory markers in mice heart and aorta, whereas downregulated eNOS expression. Tramadol caused cardiac damage shown by the increase in LDH, Troponin I, and CK-MB activities in serum samples. Overall, these results highlight the risks of tramadol on the cardiovascular system.
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Affiliation(s)
- Marwa H Bakr
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt.
| | - Eman Radwan
- Department of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut, Egypt.,Department of Biochemistry, Sphinx University, Assiut, Egypt
| | - Asmaa S Shaltout
- Department of Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Alshaimaa A Farrag
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt.,Department of Anatomy, College of Medicine, Bisha University, Bisha, Kingdom of Saudi Arabia
| | - Amany Refaat Mahmoud
- Department of Human Anatomy and Embryology, Faculty of Medicine, Assiut University, Assiut, Egypt.,Department of Basic Medical Sciences, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah, Kingdom of Saudi Arabia
| | - Tarek Hamdy Abd-Elhamid
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt
| | - Maha Ali
- Department of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut, Egypt
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42
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Joseph LC, Reyes MV, Homan EA, Gowen B, Avula UMR, Goulbourne CN, Wan EY, Elrod JW, Morrow JP. The mitochondrial calcium uniporter promotes arrhythmias caused by high-fat diet. Sci Rep 2021; 11:17808. [PMID: 34497331 PMCID: PMC8426388 DOI: 10.1038/s41598-021-97449-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 08/13/2021] [Indexed: 12/16/2022] Open
Abstract
Obesity and diabetes increase the risk of arrhythmia and sudden cardiac death. However, the molecular mechanisms of arrhythmia caused by metabolic abnormalities are not well understood. We hypothesized that mitochondrial dysfunction caused by high fat diet (HFD) promotes ventricular arrhythmia. Based on our previous work showing that saturated fat causes calcium handling abnormalities in cardiomyocytes, we hypothesized that mitochondrial calcium uptake contributes to HFD-induced mitochondrial dysfunction and arrhythmic events. For experiments, we used mice with conditional cardiac-specific deletion of the mitochondrial calcium uniporter (Mcu), which is required for mitochondrial calcium uptake, and littermate controls. Mice were used for in vivo heart rhythm monitoring, perfused heart experiments, and isolated cardiomyocyte experiments. MCU KO mice are protected from HFD-induced long QT, inducible ventricular tachycardia, and abnormal ventricular repolarization. Abnormal repolarization may be due, at least in part, to a reduction in protein levels of voltage gated potassium channels. Furthermore, isolated cardiomyocytes from MCU KO mice exposed to saturated fat are protected from increased reactive oxygen species (ROS), mitochondrial dysfunction, and abnormal calcium handling. Activation of calmodulin-dependent protein kinase (CaMKII) corresponds with the increase in arrhythmias in vivo. Additional experiments showed that CaMKII inhibition protects cardiomyocytes from the mitochondrial dysfunction caused by saturated fat. Hearts from transgenic CaMKII inhibitor mice were protected from inducible ventricular tachycardia after HFD. These studies identify mitochondrial dysfunction caused by calcium overload as a key mechanism of arrhythmia during HFD. This work indicates that MCU and CaMKII could be therapeutic targets for arrhythmia caused by metabolic abnormalities.
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Affiliation(s)
- Leroy C Joseph
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - Michael V Reyes
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - Edwin A Homan
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - Blake Gowen
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - Uma Mahesh R Avula
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA
| | - Chris N Goulbourne
- Center for Dementia Research, Nathan S. Kline Institute, Orangeburg, NY, USA
| | - Elaine Y Wan
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA
| | - John W Elrod
- Lewis Katz School of Medicine at Temple University, 3500 N Broad St, MERB 949, Philadelphia, PA, USA
| | - John P Morrow
- Department of Medicine, College of Physicians and Surgeons of Columbia University, New York, NY, 10032, USA.
- College of Physicians and Surgeons of Columbia University, PH10-203, 650 W 168th Street, New York, NY, 10032, USA.
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43
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Trevelin SC, Sag CM, Zhang M, Alves-Filho JC, Cunha TM, dos Santos CX, Sawyer G, Murray T, Brewer A, Laurindo FRM, Protti A, Lopes LR, Ivetic A, Cunha FQ, Shah AM. Endothelial Nox2 Limits Systemic Inflammation and Hypotension in Endotoxemia by Controlling Expression of Toll-Like Receptor 4. Shock 2021; 56:268-277. [PMID: 34276040 PMCID: PMC8284354 DOI: 10.1097/shk.0000000000001706] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/29/2020] [Accepted: 12/02/2020] [Indexed: 02/01/2023]
Abstract
ABSTRACT Leukocyte Nox2 is recognized to have a fundamental microbicidal function in sepsis but the specific role of Nox2 in endothelial cells (EC) remains poorly elucidated. Here, we tested the hypothesis that endothelial Nox2 participates in the pathogenesis of systemic inflammation and hypotension induced by LPS. LPS was injected intravenously in mice with Tie2-targeted deficiency or transgenic overexpression of Nox2. Mice with Tie2-targeted Nox2 deficiency had increased circulating levels of TNF-α, enhanced numbers of neutrophils trapped in lungs, and aggravated hypotension after LPS injection, as compared to control LPS-injected animals. In contrast, Tie2-driven Nox2 overexpression attenuated inflammation and prevented the hypotension induced by LPS. Because Tie2-Cre targets both EC and myeloid cells we generated bone marrow chimeric mice with Nox2 deletion restricted to leukocytes or ECs. Mice deficient in Nox2 either in leukocytes or ECs had reduced LPS-induced neutrophil trapping in the lungs and lower plasma TNF-α levels as compared to control LPS-injected mice. However, the pronounced hypotensive response to LPS was present only in mice with EC-specific Nox2 deletion. Experiments in vitro with human vein or aortic endothelial cells (HUVEC and HAEC, respectively) treated with LPS revealed that EC Nox2 controls NF-κB activation and the transcription of toll-like receptor 4 (TLR4), which is the recognition receptor for LPS. In conclusion, these results suggest that endothelial Nox2 limits NF-κB activation and TLR4 expression, which in turn attenuates the severity of hypotension and systemic inflammation induced by LPS.
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Affiliation(s)
- Silvia Cellone Trevelin
- King's College London, British Heart Foundation Centre for Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | - Can Martin Sag
- Department of Internal Medicine II, University Hospital of Regensburg, Regensburg, Germany
| | - Min Zhang
- King's College London, British Heart Foundation Centre for Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | - José Carlos Alves-Filho
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Thiago Mattar Cunha
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Célio Xavier dos Santos
- King's College London, British Heart Foundation Centre for Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | - Greta Sawyer
- King's College London, British Heart Foundation Centre for Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | - Thomas Murray
- King's College London, British Heart Foundation Centre for Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | - Alison Brewer
- King's College London, British Heart Foundation Centre for Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | | | - Andrea Protti
- King's College London, British Heart Foundation Centre for Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | - Lucia Rossetti Lopes
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Aleksandar Ivetic
- King's College London, British Heart Foundation Centre for Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
| | - Fernando Queiroz Cunha
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Ajay M. Shah
- King's College London, British Heart Foundation Centre for Research Excellence, School of Cardiovascular Medicine & Sciences, London, UK
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44
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Qi Z, Wang R, Liao R, Xue S, Wang Y. Neferine Ameliorates Sepsis-Induced Myocardial Dysfunction Through Anti-Apoptotic and Antioxidative Effects by Regulating the PI3K/AKT/mTOR Signaling Pathway. Front Pharmacol 2021; 12:706251. [PMID: 34366860 PMCID: PMC8344844 DOI: 10.3389/fphar.2021.706251] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/12/2021] [Indexed: 12/29/2022] Open
Abstract
Septic cardiomyopathy is a common complication of severe sepsis, which is one of the leading causes of death in intensive care units. Therefore, finding an effective therapy target is urgent. Neferine is an alkaloid extracted from the green embryos of mature seeds of Nelumbo nucifera Gaertn., which has been reported to exhibit various biological activities and pharmacological properties. This study aims to explore the protective effects of neferine against lipopolysaccharide (LPS)-induced myocardial dysfunction and its mechanisms. The LPS-induced cardiac dysfunction mouse model was employed to investigate the protective effects of neferine. In this study, we demonstrated that neferine remarkably improved cardiac function and survival rate and ameliorated morphological damage to heart tissue in LPS-induced mice. Neferine also improved cell viability and mitochondrial function and reduced cell apoptosis and the production of reactive oxygen species in LPS-treated H9c2 cells. In addition, neferine significantly upregulated Bcl-2 expression and suppressed cleaved caspase 3 activity in LPS-induced mouse heart tissue and H9c2 cells. Furthermore, neferine also upregulated the phosphatidylinositol 3-kinase/protein kinase B/mechanistic target of rapamycin (PI3K/AKT/mTOR) signaling pathway in vivo and in vitro. Conversely, LY294002 (a PI3K inhibitor) reversed the protective effect of neferine in LPS-induced H9c2 cells. Our findings thus demonstrate that neferine ameliorates LPS-induced cardiac dysfunction by activating the PI3K/AKT/mTOR signaling pathway and presents a promising therapeutic agent for the treatment of LPS-induced cardiac dysfunction.
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Affiliation(s)
- Zhen Qi
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Renrong Wang
- Department of Cardiology, Wuxi No. 2 Hospital, Nanjing Medical University, Wuxi, China
| | - Rongheng Liao
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Song Xue
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yongyi Wang
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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45
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Sepsis-Induced Myocardial Dysfunction (SIMD): the Pathophysiological Mechanisms and Therapeutic Strategies Targeting Mitochondria. Inflammation 2021; 43:1184-1200. [PMID: 32333359 DOI: 10.1007/s10753-020-01233-w] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Sepsis is a lethal syndrome with multiple organ failure caused by an inappropriate host response to infection. Cardiac dysfunction is one of the important complications of sepsis, termed sepsis-induced myocardial dysfunction (SIMD), which is characterized by systolic and diastolic dysfunction of both sides of the heart. Mechanisms that contribute to SIMD include an excessive inflammatory response, altered circulatory, microvascular status, nitric oxide (NO) synthesis impairment, endothelial dysfunction, disorders of calcium regulation, cardiac autophagy anomaly, autonomic nervous system dysregulation, metabolic reprogramming, and mitochondrial dysfunction. The role of mitochondrial dysfunction, which is characterized by structural abnormalities, increased oxidative stress, abnormal opening of the mitochondrial permeability transition pore (mPTP), mitochondrial uncoupling, and disordered quality control systems, has been gaining increasing attention as a central player in the pathophysiology of SIMD. The disruption of homeostasis within the organism induced by mitochondrial dysfunction may also be an important aspect of SIMD development. In addition, an emerging therapy strategy targeting mitochondria, namely, metabolic resuscitation, seems promising. The current review briefly introduces the mechanism of SIMD, highlights how mitochondrial dysfunction contributes to SIMD, and discusses the role of metabolic resuscitation in the treatment of SIMD.
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46
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Qin Z, Shen S, Qu K, Nie Y, Zhang H. Mild hypothermia in rat with acute myocardial ischaemia-reperfusion injury complicating severe sepsis. J Cell Mol Med 2021; 25:6448-6454. [PMID: 34057282 PMCID: PMC8406477 DOI: 10.1111/jcmm.16649] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/28/2021] [Accepted: 05/03/2021] [Indexed: 02/06/2023] Open
Abstract
Myocardial ischemia-reperfusion injury (MIRI) with concurrent severe sepsis has led to substantial mortality. Mild hypothermia (MHT) has been proved to have a therapeutic effect in either MIRI or severe sepsis, which suggests it might be beneficial for MIRI complicating severe sepsis. In this study, Sprague-Dawley rats with MIRI complicating severe sepsis were allotted in either MHT (33 ± 0.5°C) group or normothermia (NT, 37 ± 0.5°C) group; as control, rats receiving sham surgery and normal saline were kept at NT. After 2h of temperature maintenance, blood and heart tissue were acquired for detections. Lactate dehydrogenase (LDH) and MB isoenzyme of creatine kinase (CK-MB) in blood, triphenyl tetrazolium chloride and Evans blue staining, hematoxylin and eosin staining for myocardium were employed to detect myocardial damage. Tumor necrosis factor (TNF)-α and caspase-3 was performed by immunohistochemistry to exam myocardial inflammation and apoptosis. Detection of NADPH oxidase (NOX) 2 was for myocardial oxidative stress. In MHT group, systolic blood pressure was improved significantly compared with NT group. Myocardial infarct size, morphological change, LDH and CK-MB levels were attenuated compared to NT group. Moreover, less expressions of TNF-α, caspase-3 and NOX2 in MHT group were presented compared with NT group. MHT showed cardioprotection by improving cardiac dysfunction, reducing myocardial infarct size and attenuating myocardial injury, inflammation, apoptosis and oxidative stress.
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Affiliation(s)
- Zhuyun Qin
- State Key Laboratory of Cardiovascular DiseaseNational Center for Cardiovascular DiseaseChinese Academy of Medical Sciences and Peking Union Medical CollegeFuwai HospitalBeijingChina
| | - Shixuan Shen
- Zhengzhou University People's HospitalHenan Provincial People's HospitalZhengzhouChina
| | - Kaiyong Qu
- State Key Laboratory of Cardiovascular DiseaseNational Center for Cardiovascular DiseaseChinese Academy of Medical Sciences and Peking Union Medical CollegeFuwai HospitalBeijingChina
| | - Yu Nie
- State Key Laboratory of Cardiovascular DiseaseNational Center for Cardiovascular DiseaseChinese Academy of Medical Sciences and Peking Union Medical CollegeFuwai HospitalBeijingChina
| | - Haitao Zhang
- State Key Laboratory of Cardiovascular DiseaseNational Center for Cardiovascular DiseaseChinese Academy of Medical Sciences and Peking Union Medical CollegeFuwai HospitalBeijingChina
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47
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Tang R, Jia L, Li Y, Zheng J, Qi P. Narciclasine attenuates sepsis-induced myocardial injury by modulating autophagy. Aging (Albany NY) 2021; 13:15151-15163. [PMID: 34035183 PMCID: PMC8221305 DOI: 10.18632/aging.203078] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 04/29/2021] [Indexed: 12/22/2022]
Abstract
Acute myocardial injury (AMI) is often secondary to sepsis, which is a life-threatening disease associated with severe cardiac inflammation. Narciclasine, a plant alkaloid isolated from different members of the Amaryllidaceae family, has been extensively characterized as an antitumor and anti-inflammatory compound. In addition, autophagy is critical for sepsis-induced myocardial injury. However, the role and mechanism of autophagy by which narciclasine confers cardioprotection are still unclear. The present study aimed to investigate the underlying mechanism by which narciclasine affects the pathogenesis of sepsis-induced myocardial injury. Narciclasine effectively attenuated LPS-induced myocardial inflammation in vitro and in vivo. In addition, narciclasine protected cardiac function and suppressed the expression of inflammatory cytokines in LPS-induced heart tissue. Furthermore, narciclasine upregulated LPS-induced autophagic activity, and the autophagy inhibitor 3-MA abrogated narciclasine-mediated protection against LPS-induced AMI. Importantly, narciclasine exerted an inhibitory effect on the JNK signaling pathway, and JNK activity was tightly associated with narciclasine-induced autophagy and the consequent protective effects during AMI. Taken together, our findings indicate that narciclasine protects against LPS-induced AMI by inducing JNK-dependent autophagic flux; hence, narciclasine may be an effective and novel agent for the clinical treatment of sepsis-induced myocardial injury.
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Affiliation(s)
- Rong Tang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China
| | - Liu Jia
- Department of Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China
| | - Yunlong Li
- Department of Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China
| | - Junbo Zheng
- Department of Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China
| | - Pingping Qi
- Departments of Blood Transfusion, The First Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China
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48
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Wang XT, Peng Z, An YY, Shang T, Xiao G, He S, Chen X, Zhang H, Wang Y, Wang T, Zhang JH, Gao X, Zhu Y, Feng Y. Paeoniflorin and Hydroxysafflor Yellow A in Xuebijing Injection Attenuate Sepsis-Induced Cardiac Dysfunction and Inhibit Proinflammatory Cytokine Production. Front Pharmacol 2021; 11:614024. [PMID: 33986658 PMCID: PMC8112230 DOI: 10.3389/fphar.2020.614024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 12/07/2020] [Indexed: 12/15/2022] Open
Abstract
Sepsis-induced myocardial dysfunction is a major contributor to the poor outcomes of septic shock. As an add-on with conventional sepsis management for over 15 years, the effect of Xuebijing injection (XBJ) on the sepsis-induced myocardial dysfunction was not well understood. The material basis of Xuebijing injection (XBJ) in managing infections and infection-related complications remains to be defined. A murine cecal ligation and puncture (CLP) model and cardiomyocytes in vitro culture were adopted to study the influence of XBJ on infection-induced cardiac dysfunction. XBJ significantly improved the survival of septic-mice and rescued cardiac dysfunction in vivo. RNA-seq revealed XBJ attenuated the expression of proinflammatory cytokines and related signalings in the heart which was further confirmed on the mRNA and protein levels. Xuebijing also protected cardiomyocytes from LPS-induced mitochondrial calcium ion overload and reduced the LPS-induced ROS production in cardiomyocytes. The therapeutic effect of XBJ was mediated by the combination of paeoniflorin and hydroxysafflor yellow A (HSYA) (C0127-2). C0127-2 improved the survival of septic mice, protected their cardiac function and cardiomyocytes while balancing gene expression in cytokine-storm-related signalings, such as TNF-α and NF-κB. In summary, Paeoniflorin and HSYA are key active compounds in XBJ for managing sepsis, protecting cardiac function, and controlling inflammation in the cardiac tissue partially by limiting the production of IL-6, IL-1β, and CXCL2.
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Affiliation(s)
- Xin-Tong Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Zhen Peng
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Ying-Ying An
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Ting Shang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Guangxu Xiao
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Shuang He
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Xi Chen
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Han Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuefei Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Tao Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jun-Hua Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiumei Gao
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yan Zhu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
| | - Yuxin Feng
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, China
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Wang R, Xu Y, Zhang W, Fang Y, Yang T, Zeng D, Wei T, Liu J, Zhou H, Li Y, Huang ZP, Zhang M. Inhibiting miR-22 Alleviates Cardiac Dysfunction by Regulating Sirt1 in Septic Cardiomyopathy. Front Cell Dev Biol 2021; 9:650666. [PMID: 33869205 PMCID: PMC8047209 DOI: 10.3389/fcell.2021.650666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 03/05/2021] [Indexed: 01/20/2023] Open
Abstract
High morbidity and mortality are the most typical characteristics of septic cardiomyopathy. We aimed to reveal the role of miR-22 in septic cardiomyopathy and to explore the underlying mechanisms. miR-22 cardiac-specific knockout (miR-22cKO) mice and miR-22 cardiac-specific transgenic (miR-22cOE) mice were subjected to a cecal ligation and puncture (CLP) operation, while a sham operation was used in the control group. The echocardiogram results suggested that miR-22cKO CLP mice cardiac dysfunction was alleviated. The serum LDH and CK-MB were reduced in the miR-22cKO CLP mice. As expected, there was reduced apoptosis, increased autophagy and alleviated mitochondrial dysfunction in the miR-22cKO CLP mice, while it had contrary role in the miR-22cOE group. Inhibiting miR-22 promoted autophagy by increasing the LC3II/GAPDH ratio and decreasing the p62 level. Additionally, culturing primary cardiomyocytes with lipopolysaccharide (LPS) simulated sepsis-induced cardiomyopathy in vitro. Inhibiting miR-22 promoted autophagic flux confirmed by an increased LC3II/GAPDH ratio and reduced p62 protein level under bafilomycin A1 conditions. Knocking out miR-22 may exert a cardioprotective effect on sepsis by increasing autophagy and decreasing apoptosis via sirt1. Our results revealed that targeting miR-22 may become a new strategy for septic cardiomyopathy treatment.
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Affiliation(s)
- Runze Wang
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China.,Department of Hematology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yuerong Xu
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Wei Zhang
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yexian Fang
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Tiqun Yang
- Department of Cardiology, Center for Translational Medicine, The First Affiliated Hospital, Institute of Precision Medicine, Sun Yat-sen University, Guangzhou, China.,NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Di Zeng
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Ting Wei
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jing Liu
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Haijia Zhou
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yan Li
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zhan-Peng Huang
- Department of Cardiology, Center for Translational Medicine, The First Affiliated Hospital, Institute of Precision Medicine, Sun Yat-sen University, Guangzhou, China.,NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Mingming Zhang
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
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50
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Activation of NADPH oxidase mediates mitochondrial oxidative stress and atrial remodeling in diabetic rabbits. Life Sci 2021; 272:119240. [PMID: 33600862 DOI: 10.1016/j.lfs.2021.119240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/05/2021] [Accepted: 02/13/2021] [Indexed: 01/05/2023]
Abstract
AIMS The mechanisms of atrial fibrillation (AF) in diabetes mellitus (DM) involve a complex interplay between increased oxidative stress, mitochondrial dysfunction and atrial remodeling. In this study, we examined the effects of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activation on mitochondrial oxidative stress and atrial remodeling in a rabbit model of diabetes mellitus (DM). MAIN METHODS Healthy rabbits were selected and randomly divided into control, diabetic and apocynin administration group. Parameters of echocardiography, atrial electrophysiology, oxidative stress and mitochondrial function were compared between the different groups. KEY FINDINGS Compared to the control group, the DM group showed higher activity of NADPH oxidase, increased oxidative stress, larger left atrial diameter, a reduction in atrial mean conduction velocity. These findings were associated with increased interstitial fibrosis of the atria and higher atrial fibrillation (AF) inducibility. Moreover, atrial ultrastructure and mitochondrial function such as the mitochondrial respiratory control rate (RCR) were impaired. NADPH oxidase inhibition using the pharmacological agent apocynin improved these changes. SIGNIFICANCE NADPH oxidase activity plays an important role in mitochondrial oxidative stress, which is associated with AF inducibility by promoting adverse atrial remodeling. The NADPH oxidase inhibitor apocynin can prevent these pathological changes and may be a potential drug for AF treatment.
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