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Kapoor S, Mihalovičová L, Pisareva E, Pastor B, Mirandola A, Roch B, Bryant J, Princy AP, Chouaib S, Thierry AR. Association of vascular netosis with COVID-19 severity in asymptomatic and symptomatic patients. iScience 2024; 27:109573. [PMID: 38660409 PMCID: PMC11039348 DOI: 10.1016/j.isci.2024.109573] [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: 09/25/2023] [Revised: 12/19/2023] [Accepted: 03/24/2024] [Indexed: 04/26/2024] Open
Abstract
We examined from a large exploratory study cohort of COVID-19 patients (N = 549) a validated panel of neutrophil extracellular traps (NETs) markers in different categories of disease severity. Neutrophil elastase (NE), myeloperoxidase (MPO), and circulating nuclear DNA (cir-nDNA) levels in plasma were seen to gradually and significantly (p < 0.0001) increase with the disease severity: mild (3.7, 48.9, and 15.8 ng/mL, respectively); moderate (9.8, 77.5, and 27.7 ng/mL, respectively); severe (11.7, 99.5, and 29.0 ng/mL, respectively); and critical (13.1, 110.2, and 46.0 ng/mL, respectively); and are also statistically different with healthy individuals (N = 140; p < 0.0001). All observations made in relation to the Delta variant-infected patients are in line with Omicron-infected patients. We unexpectedly observed significantly higher levels of NETs in asymptomatic individuals as compared to healthy subjects (p < 0.0001). Moreover, the balance of cir-nDNA and circulating mitochondrial DNA level was affected in COVID-19 infected patients attesting to mitochondrial dysfunction.
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Affiliation(s)
- Suman Kapoor
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, UAE
| | - Lucia Mihalovičová
- IRCM, Institute of Research in Cancerology of Montpellier, INSERM U1194, Centre Hospitalier Universitaire, University of Montpellier, Montpellier, France
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Sasinkova, Bratislava, Slovakia
| | - Ekaterina Pisareva
- IRCM, Institute of Research in Cancerology of Montpellier, INSERM U1194, Centre Hospitalier Universitaire, University of Montpellier, Montpellier, France
| | - Brice Pastor
- IRCM, Institute of Research in Cancerology of Montpellier, INSERM U1194, Centre Hospitalier Universitaire, University of Montpellier, Montpellier, France
| | - Alexia Mirandola
- IRCM, Institute of Research in Cancerology of Montpellier, INSERM U1194, Centre Hospitalier Universitaire, University of Montpellier, Montpellier, France
| | - Benoit Roch
- IRCM, Institute of Research in Cancerology of Montpellier, INSERM U1194, Centre Hospitalier Universitaire, University of Montpellier, Montpellier, France
| | - Joe Bryant
- Institute of Human Virology, Baltimore, MD, USA
| | | | - Salem Chouaib
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, UAE
- Institut Gustave Roussy, Villejuif, France
| | - Alain Roger Thierry
- IRCM, Institute of Research in Cancerology of Montpellier, INSERM U1194, Centre Hospitalier Universitaire, University of Montpellier, Montpellier, France
- Montpellier Cancer Institute (ICM), Montpellier, France
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2
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Zhang B, Li Y, Liu N, Liu B. AP39, a novel mitochondria-targeted hydrogen sulfide donor ameliorates doxorubicin-induced cardiotoxicity by regulating the AMPK/UCP2 pathway. PLoS One 2024; 19:e0300261. [PMID: 38568919 PMCID: PMC10990198 DOI: 10.1371/journal.pone.0300261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 02/25/2024] [Indexed: 04/05/2024] Open
Abstract
Doxorubicin (DOX) is a broad-spectrum, highly effective antitumor agent; however, its cardiotoxicity has greatly limited its use. Hydrogen sulfide (H2S) is an endogenous gaseous transmitter that exerts cardioprotective effects via the regulation of oxidative stress and apoptosis and maintenance of mitochondrial function, among other mechanisms. AP39 is a novel mitochondria-targeted H2S donor that, at appropriate concentrations, attenuates intracellular oxidative stress damage, maintains mitochondrial function, and ameliorates cardiomyocyte injury. In this study, DOX-induced cardiotoxicity models were established using H9c2 cells and Sprague-Dawley rats to evaluate the protective effect of AP39 and its mechanisms of action. Both in vivo and in vitro experiments showed that DOX induces oxidative stress injury, apoptosis, and mitochondrial damage in cardiomyocytes and decreases the expression of p-AMPK/AMPK and UCP2. All DOX-induced changes were attenuated by AP39 treatment. Furthermore, the protective effect of AP39 was significantly attenuated by the inhibition of AMPK and UCP2. The results suggest that AP39 ameliorates DOX-induced cardiotoxicity by regulating the expression of AMPK/UCP2.
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Affiliation(s)
- Bin Zhang
- The Second Hospital of Jilin University, Nanguan District, Changchun City, Jilin Province, China
| | - Yangxue Li
- The Second Hospital of Jilin University, Nanguan District, Changchun City, Jilin Province, China
| | - Ning Liu
- The Second Hospital of Jilin University, Nanguan District, Changchun City, Jilin Province, China
| | - Bin Liu
- The Second Hospital of Jilin University, Nanguan District, Changchun City, Jilin Province, China
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3
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Xing Y, Gao Z, Bai Y, Wang W, Chen C, Zheng Y, Meng Y. Golgi Protein 73 Promotes LPS-Induced Cardiac Dysfunction via Mediating Myocardial Apoptosis and Autophagy. J Cardiovasc Pharmacol 2024; 83:116-125. [PMID: 37755435 DOI: 10.1097/fjc.0000000000001487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 09/02/2023] [Indexed: 09/28/2023]
Abstract
ABSTRACT Sepsis-induced cardiac dysfunction represents a major cause of high mortality in intensive care units with limited therapeutic options. Golgi protein 73 (GP73) has been implicated in various diseases. However, the role of GP73 in lipopolysaccharide (LPS)-induced cardiac dysfunction is unclear. In this study, we established a sepsis-induced cardiac dysfunction model by LPS administration in wild-type and GP73 knockout ( GP73-/- ) mice. We found that GP73 was increased in LPS-treated mouse hearts and LPS-cultured neonatal rat cardiomyocytes (NRCMs). Knockout of GP73 alleviated myocardial injury and improved cardiac dysfunction. Moreover, depletion of GP73 in NRCMs relieved LPS-induced cardiomyocyte apoptosis and activated myocardial autophagy. Therefore, GP73 is a negative regulator in LPS-induced cardiac dysfunction by promoting cardiomyocyte apoptosis and inhibiting cardiomyocyte autophagy.
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Affiliation(s)
- Yaqi Xing
- Department of Pathology, Capital Medical University, Beijing, China
| | - Zhenqiang Gao
- Department of Pathology, Capital Medical University, Beijing, China
| | - Yunfei Bai
- Department of Pathology, Capital Medical University, Beijing, China
| | - Wen Wang
- Department of Pathology, Capital Medical University, Beijing, China
- National Demonstration Center for Experimental Basic Medical Education, Experimental Teaching Center of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Chen Chen
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China; and
| | - Yuanyuan Zheng
- Department of Pharmacology, Capital Medical University, Beijing, China
| | - Yan Meng
- Department of Pathology, Capital Medical University, Beijing, China
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4
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Liu AB, Li SJ, Yu YY, Zhang JF, Ma L. Current insight on the mechanisms of programmed cell death in sepsis-induced myocardial dysfunction. Front Cell Dev Biol 2023; 11:1309719. [PMID: 38161332 PMCID: PMC10754983 DOI: 10.3389/fcell.2023.1309719] [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: 10/15/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024] Open
Abstract
Sepsis is a clinical syndrome characterized by a dysregulated host response to infection, leading to life-threatening organ dysfunction. It is a high-fatality condition associated with a complex interplay of immune and inflammatory responses that can cause severe harm to vital organs. Sepsis-induced myocardial injury (SIMI), as a severe complication of sepsis, significantly affects the prognosis of septic patients and shortens their survival time. For the sake of better administrating hospitalized patients with sepsis, it is necessary to understand the specific mechanisms of SIMI. To date, multiple studies have shown that programmed cell death (PCD) may play an essential role in myocardial injury in sepsis, offering new strategies and insights for the therapeutic aspects of SIMI. This review aims to elucidate the role of cardiomyocyte's programmed death in the pathophysiological mechanisms of SIMI, with a particular focus on the classical pathways, key molecules, and signaling transduction of PCD. It will explore the role of the cross-interaction between different patterns of PCD in SIMI, providing a new theoretical basis for multi-target treatments for SIMI.
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Affiliation(s)
- An-Bu Liu
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Shu-Jing Li
- Department of Pediatrics Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yuan-Yuan Yu
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jun-Fei Zhang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Lei Ma
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
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5
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Abdulghani A, Poghosyan M, Mehren A, Philipsen A, Anderzhanova E. Neuroplasticity to autophagy cross-talk in a therapeutic effect of physical exercises and irisin in ADHD. Front Mol Neurosci 2023; 15:997054. [PMID: 36776770 PMCID: PMC9909442 DOI: 10.3389/fnmol.2022.997054] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 12/30/2022] [Indexed: 01/28/2023] Open
Abstract
Adaptive neuroplasticity is a pivotal mechanism for healthy brain development and maintenance, as well as its restoration in disease- and age-associated decline. Management of mental disorders such as attention deficit hyperactivity disorder (ADHD) needs interventions stimulating adaptive neuroplasticity, beyond conventional psychopharmacological treatments. Physical exercises are proposed for the management of ADHD, and also depression and aging because of evoked brain neuroplasticity. Recent progress in understanding the mechanisms of muscle-brain cross-talk pinpoints the role of the myokine irisin in the mediation of pro-cognitive and antidepressant activity of physical exercises. In this review, we discuss how irisin, which is released in the periphery as well as derived from brain cells, may interact with the mechanisms of cellular autophagy to provide protein recycling and regulation of brain-derived neurotrophic factor (BDNF) signaling via glia-mediated control of BDNF maturation, and, therefore, support neuroplasticity. We propose that the neuroplasticity associated with physical exercises is mediated in part by irisin-triggered autophagy. Since the recent findings give objectives to consider autophagy-stimulating intervention as a prerequisite for successful therapy of psychiatric disorders, irisin appears as a prototypic molecule that can activate autophagy with therapeutic goals.
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Affiliation(s)
- Alhasan Abdulghani
- C. and O. Vogt Institute for Brain Research, Medical Faculty and University Hospital Düsseldorf, Henrich Heine University, Düsseldorf, Düsseldorf, Germany,*Correspondence: Alhasan Abdulghani,
| | - Mikayel Poghosyan
- Institute for Biology-Neurobiology, Freie University of Berlin, Berlin, Germany
| | - Aylin Mehren
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Alexandra Philipsen
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Elmira Anderzhanova
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
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6
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Moruno-Manchon J, Noh B, McCullough L. Sex-biased autophagy as a potential mechanism mediating sex differences in ischemic stroke outcome. Neural Regen Res 2023; 18:31-37. [PMID: 35799505 PMCID: PMC9241419 DOI: 10.4103/1673-5374.340406] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Stroke is the second leading cause of death and a major cause of disability worldwide, and biological sex is an important determining factor in stroke incidence and pathology. From childhood through adulthood, men have a higher incidence of stroke compared with women. Abundant research has confirmed the beneficial effects of estrogen in experimental ischemic stroke but genetic factors such as the X-chromosome complement can also play an important role in determining sex differences in stroke. Autophagy is a self-degrading cellular process orchestrated by multiple core proteins, which leads to the engulfment of cytoplasmic material and degradation of cargo after autophagy vesicles fuse with lysosomes or endosomes. The levels and the activity of components of these signaling pathways and of autophagy-related proteins can be altered during ischemic insults. Ischemic stroke activates autophagy, however, whether inhibiting autophagy after stroke is beneficial in the brain is still under a debate. Autophagy is a potential mechanism that may contribute to differences in stroke progression between the sexes. Furthermore, the effects of manipulating autophagy may also differ between the sexes. Mechanisms that regulate autophagy in a sex-dependent manner in ischemic stroke remain unexplored. In this review, we summarize clinical and pre-clinical evidence for sex differences in stroke. We briefly introduce the autophagy process and summarize the effects of gonadal hormones in autophagy in the brain and discuss X-linked genes that could potentially regulate brain autophagy. Finally, we review pre-clinical studies that address the mechanisms that could mediate sex differences in brain autophagy after stroke.
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7
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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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8
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Machine learning and bioinformatics to identify 8 autophagy-related biomarkers and construct gene regulatory networks in dilated cardiomyopathy. Sci Rep 2022; 12:15030. [PMID: 36056063 PMCID: PMC9440113 DOI: 10.1038/s41598-022-19027-5] [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: 04/02/2022] [Accepted: 08/23/2022] [Indexed: 11/29/2022] Open
Abstract
Dilated cardiomyopathy (DCM) is a condition of impaired ventricular remodeling and systolic diastole that is often complicated by arrhythmias and heart failure with a poor prognosis. This study attempted to identify autophagy-related genes (ARGs) with diagnostic biomarkers of DCM using machine learning and bioinformatics approaches. Differential analysis of whole gene microarray data of DCM from the Gene Expression Omnibus (GEO) database was performed using the NetworkAnalyst 3.0 platform. Differentially expressed genes (DEGs) matching (|log2FoldChange ≥ 0.8, p value < 0.05|) were obtained in the GSE4172 dataset by merging ARGs from the autophagy gene libraries, HADb and HAMdb, to obtain autophagy-related differentially expressed genes (AR-DEGs) in DCM. The correlation analysis of AR-DEGs and their visualization were performed using R language. Gene Ontology (GO) enrichment analysis and combined multi-database pathway analysis were served by the Enrichr online enrichment analysis platform. We used machine learning to screen the diagnostic biomarkers of DCM. The transcription factors gene regulatory network was constructed by the JASPAR database of the NetworkAnalyst 3.0 platform. We also used the drug Signatures database (DSigDB) drug database of the Enrichr platform to screen the gene target drugs for DCM. Finally, we used the DisGeNET database to analyze the comorbidities associated with DCM. In the present study, we identified 23 AR-DEGs of DCM. Eight (PLEKHF1, HSPG2, HSF1, TRIM65, DICER1, VDAC1, BAD, TFEB) molecular markers of DCM were obtained by two machine learning algorithms. Transcription factors gene regulatory network was established. Finally, 10 gene-targeted drugs and complications for DCM were identified.
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9
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Liu J, Zhou G, Wang X, Liu D. Metabolic reprogramming consequences of sepsis: adaptations and contradictions. Cell Mol Life Sci 2022; 79:456. [PMID: 35904600 PMCID: PMC9336160 DOI: 10.1007/s00018-022-04490-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 12/19/2022]
Abstract
During sepsis, the importance of alterations in cell metabolism is underappreciated. The cellular metabolism, which has a variable metabolic profile in different cells and disease stages, is largely responsible for the immune imbalance and organ failure associated with sepsis. Metabolic reprogramming, in which glycolysis replaces OXPHOS as the main energy-producing pathway, is both a requirement for immune cell activation and a cause of immunosuppression. Meanwhile, the metabolites produced by OXPHOS and glycolysis can act as signaling molecules to control the immune response during sepsis. Sepsis-induced "energy shortage" leads to stagnated cell function and even organ dysfunction. Metabolic reprogramming can alleviate the energy crisis to some extent, enhance host tolerance to maintain cell survival functions, and ultimately increase the adaptation of cells during sepsis. However, a switch from glycolysis to OXPHOS is essential for restoring cell function. This review summarized the crosstalk between metabolic reprogramming and immune cell activity as well as organ function during sepsis, discussed the benefits and drawbacks of metabolic reprogramming to show the contradictions of metabolic reprogramming during sepsis, and assessed the feasibility of treating sepsis through targeted metabolism. Using metabolic reprogramming to achieve metabolic homeostasis could be a viable therapy option for sepsis.
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Affiliation(s)
- Jingjing Liu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730 China
| | - Gaosheng Zhou
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730 China
| | - Xiaoting Wang
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730 China
| | - Dawei Liu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1# Shuai Fu Yuan, Dong Cheng District, Beijing, 100730 China
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10
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Bi CF, Liu J, Yang LS, Zhang JF. Research Progress on the Mechanism of Sepsis Induced Myocardial Injury. J Inflamm Res 2022; 15:4275-4290. [PMID: 35923903 PMCID: PMC9342248 DOI: 10.2147/jir.s374117] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/19/2022] [Indexed: 11/30/2022] Open
Abstract
Sepsis is an abnormal condition with multiple organ dysfunctions caused by the uncontrolled infection response and one of the major diseases that seriously hang over global human health. Besides, sepsis is characterized by high morbidity and mortality, especially in intensive care unit (ICU). Among the numerous subsequent organ injuries of sepsis, myocardial injury is one of the most common complications and the main cause of death in septic patients. To better manage septic inpatients, it is necessary to understand the specific mechanisms of sepsis induced myocardial injury (SIMI). Therefore, this review will elucidate the pathophysiology of SIMI from the following certain mechanisms: apoptosis, mitochondrial damage, autophagy, excessive inflammatory response, oxidative stress and pyroptosis, and outline current therapeutic strategies and potential approaches in SIMI.
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Affiliation(s)
- Cheng-Fei Bi
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, People’s Republic of China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, People’s Republic of China
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan, People’s Republic of China
| | - Jia Liu
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, People’s Republic of China
- Medical Experimental Center, General Hospital of Ningxia Medical University, Yinchuan, People’s Republic of China
| | - Li-Shan Yang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, People’s Republic of China
- Correspondence: Li-Shan Yang; Jun-Fei Zhang, Email ;
| | - Jun-Fei Zhang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, People’s Republic of China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, People’s Republic of China
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan, People’s Republic of China
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11
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Peng Y, Wang L, Zhao X, Lai S, He X, Fan Q, He H, He M. Puerarin attenuates lipopolysaccharide-induced myocardial injury via the 14-3-3γ/PKCε pathway activating adaptive autophagy. Int Immunopharmacol 2022; 108:108905. [DOI: 10.1016/j.intimp.2022.108905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 05/18/2022] [Accepted: 05/24/2022] [Indexed: 12/30/2022]
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12
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Bugga P, Alam MJ, Kumar R, Pal S, Chattopadyay N, Banerjee SK. Sirt3 ameliorates mitochondrial dysfunction and oxidative stress through regulating mitochondrial biogenesis and dynamics in cardiomyoblast. Cell Signal 2022; 94:110309. [PMID: 35304284 DOI: 10.1016/j.cellsig.2022.110309] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 02/28/2022] [Accepted: 03/10/2022] [Indexed: 12/22/2022]
Abstract
Sirtuins are the endogenously present anti-aging protein deacetylases that regulate the mitochondrial biogenesis and function. Especially Sirt3, a mitochondrial sirtuin, is well known for maintaining mitochondrial function and health. In the present study, we have explored the novel role of Sirt3 in mitochondrial biogenesis and shown the role of Sirt3 in mito-nuclear communication through AMPK-α in Sirt3 knockdown and Sirt3 overexpressed H9c2 cells. The study found that impaired mitochondrial function in Sirt3-knockdown H9c2 cells was associated with decreased expression of mitochondrial DNA encoded genes, reduced SOD2 expression and activity. The study also revealed that Sirt3 knockdown affects mitochondrial biogenesis and dynamics. To further confirm the role of Sirt3 on mitochondrial biogenesis and health, we did Sirt3 overexpression in H9c2 cells. Sirt3 overexpression enhanced the expression of mitochondrial DNA encoded genes, increased SOD2 activity and altered mitochondrial dynamics. Sirt3 overexpression also caused an increase in mitochondrial biogenesis gene and protein (PGC-1α and TFAM) expression. All these changes were confirmed with mitochondrial functional parameters like basal respiration, maximal respiratory capacity, spare respiratory capacity and ATP production. We found decreased mitochondrial function in Sirt3-knockdown H9c2 cells when compared to control H9c2 cells. Together our data conclude that Sirt3 regulates cardiac mitochondrial health and function through the Sirt3-AMPKα-PGC-1α axis.
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Affiliation(s)
- Paramesha Bugga
- Non-Communicable Diseases Group, Translational Health Science and Technology Institute (THSTI), Faridabad, 121001, Haryana, INDIA
| | - Md Jahangir Alam
- Non-Communicable Diseases Group, Translational Health Science and Technology Institute (THSTI), Faridabad, 121001, Haryana, INDIA; Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Guwahati 781101, Assam, India
| | - Roshan Kumar
- Non-Communicable Diseases Group, Translational Health Science and Technology Institute (THSTI), Faridabad, 121001, Haryana, INDIA.
| | - Subhashis Pal
- Endocrinology Department, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Naibedya Chattopadyay
- Endocrinology Department, CSIR-Central Drug Research Institute, Lucknow 226031, India.
| | - Sanjay Kumar Banerjee
- Non-Communicable Diseases Group, Translational Health Science and Technology Institute (THSTI), Faridabad, 121001, Haryana, INDIA; Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Guwahati 781101, Assam, India.
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13
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Li S, Yu Y, Wang B, Qiao S, Hu M, Wang H, Fu C, Dong B. Overexpression of G protein-coupled receptor 40 protects obesity-induced cardiomyopathy through the SIRT1/LKB1/AMPK pathway. Hum Gene Ther 2022; 33:598-613. [PMID: 35018806 DOI: 10.1089/hum.2021.176] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Obesity has become a serious global public health problem, and cardiomyopathy caused by obesity has been paid more and more attention in recent years. As an important protein involved in glucose and lipid metabolism, G protein-coupled receptor 40 (GPR40) exerts cardioprotective effects in some disease models. The aim of this study was to explore whether GPR40 plays a protective role in obesity-induced cardiomyopathy. We established an obesity model by feeding rats with a high-fat diet, and H9c2 cells were stimulated with palmitic acid to mimic high-fat stimulation. Overexpression of GPR40 was achieved by infection with lentivirus or cDNA plasmids. Obesity-induced cardiac injury models exhibit cardiac dysfunction, myocardial hypertrophy and collagen accumulation, accompanied by increased inflammation, oxidative stress and apoptosis. However, GPR40 overexpression attenuated these alterations. Its anti-inflammatory effect may be through inhibiting the nuclear factor-κB pathway, and the anti-oxidative stress may be through activating the nuclear transcription factor erythroid 2-related factor 2 pathway. For the mechanism of GPR40 against obese cardiomyopathy, GPR40 overexpression not only activated the sirtuin 1 (SIRT1)- liver kinase B1 (LKB1)- AMP-activated protein kinase (AMPK) pathway, but also enhanced the binding of SIRT1 to LKB1. The anti-fibrotic, anti-inflammatory, anti-oxidative stress and anti-apoptotic effects of GPR40 overexpression were inhibited by SIRT1 small interfering RNA. In conclusion, GPR40 overexpression protects against obesity-induced cardiac injury in rats, possibly through the SIRT1- LKB1- AMPK pathway.
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Affiliation(s)
- Shengnan Li
- Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China, Jinan, China;
| | - Yalin Yu
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250014, China, Jinan, China;
| | - Boyang Wang
- Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China, Jinan, China;
| | - Shiyuan Qiao
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250012, China, Jinan, China;
| | - Maomao Hu
- Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China, Jinan, China;
| | - Han Wang
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China, Jinan, China;
| | - Changning Fu
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China, Jinan, China.,Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China, Jinan, China;
| | - Bo Dong
- Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China, Jinan, Shandong, China;
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Sabbir MG, Taylor CG, Zahradka P. CAMKK2 regulates mitochondrial function by controlling succinate dehydrogenase expression, post-translational modification, megacomplex assembly, and activity in a cell-type-specific manner. Cell Commun Signal 2021; 19:98. [PMID: 34563205 PMCID: PMC8466908 DOI: 10.1186/s12964-021-00778-z] [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: 06/11/2021] [Accepted: 08/14/2021] [Indexed: 01/08/2023] Open
Abstract
Background The calcium (Ca2+)/calmodulin (CAM)-activated kinase kinase 2 (CAMKK2)-signaling regulates several physiological processes, for example, glucose metabolism and energy homeostasis, underlying the pathogenesis of metabolic diseases. CAMKK2 exerts its biological function through several downstream kinases, therefore, it is expected that depending on the cell-type-specific kinome profile, the metabolic effects of CAMKK2 and its underlying mechanism may differ. Identification of the cell-type-specific differences in CAMKK2-mediated glucose metabolism will lead to unravelling the organ/tissue-specific role of CAMKK2 in energy metabolism. Therefore, the objective of this study was to understand the cell-type-specific regulation of glucose metabolism, specifically, respiration under CAMKK2 deleted conditions in transformed human embryonic kidney-derived HEK293 and hepatoma-derived HepG2 cells. Methods Cellular respiration was measured in terms of oxygen consumption rate (OCR). OCR and succinate dehydrogenase (SDH) enzyme activity were measured following the addition of substrates. In addition, transcription and proteomic and analyses of the electron transport system (ETS)-associated proteins, including mitochondrial SDH protein complex (complex-II: CII) subunits, specifically SDH subunit B (SDHB), were performed using standard molecular biology techniques. The metabolic effect of the altered SDHB protein content in the mitochondria was further evaluated by cell-type-specific knockdown or overexpression of SDHB. Results CAMKK2 deletion suppressed cellular respiration in both cell types, shifting metabolic phenotype to aerobic glycolysis causing the Warburg effect. However, isolated mitochondria exhibited a cell-type-specific enhancement or dampening of the respiratory kinetics under CAMKK2 deletion conditions. This was mediated in part by the cell-type-specific effect of CAMKK2 loss-of-function on transcription, translation, post-translational modification (PTM), and megacomplex assembly of nuclear-encoded mitochondrial SDH enzyme complex subunits, specifically SDHB. The cell-type-specific increase or decrease in SDHs protein levels, specifically SDHB, under CAMKK2 deletion condition resulted in an increased or decreased enzymatic activity and CII-mediated respiration. This metabolic phenotype was reversed by cell-type-specific knockdown or overexpression of SDHB in respective CAMKK2 deleted cell types. CAMKK2 loss-of-function also affected the overall assembly of mitochondrial supercomplex involving ETS-associated proteins in a cell-type-specific manner, which correlated with differences in mitochondrial bioenergetics. Conclusion This study provided novel insight into CAMKK2-mediated cell-type-specific differential regulation of mitochondrial function, facilitated by the differential expression, PTMs, and assembly of SDHs into megacomplex structures.![]() Video Abstract
Supplementary Information The online version contains supplementary material available at 10.1186/s12964-021-00778-z.
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Affiliation(s)
- Mohammad Golam Sabbir
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Albrechtsen Research Centre, Room R2034 - 351 Taché Avenue, Winnipeg, MB, R2H 2A6, Canada. .,Alzo Biosciences Inc., San Diego, CA, USA.
| | - Carla G Taylor
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Albrechtsen Research Centre, Room R2034 - 351 Taché Avenue, Winnipeg, MB, R2H 2A6, Canada.,Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada.,Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, R3E 0J9, Canada
| | - Peter Zahradka
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Albrechtsen Research Centre, Room R2034 - 351 Taché Avenue, Winnipeg, MB, R2H 2A6, Canada.,Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada.,Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, R3E 0J9, Canada
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