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Yao C, Li Z, Sun K, Zhang Y, Shou S, Jin H. Mitochondrial dysfunction in acute kidney injury. Ren Fail 2024; 46:2393262. [PMID: 39192578 PMCID: PMC11360640 DOI: 10.1080/0886022x.2024.2393262] [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: 06/13/2024] [Revised: 07/30/2024] [Accepted: 08/12/2024] [Indexed: 08/29/2024] Open
Abstract
Acute kidney injury (AKI) is a systemic clinical syndrome increasing morbidity and mortality worldwide in recent years. Renal tubular epithelial cells (TECs) death caused by mitochondrial dysfunction is one of the pathogeneses. The imbalance of mitochondrial quality control is the main cause of mitochondrial dysfunction. Mitochondrial quality control plays a crucial role in AKI. Mitochondrial quality control mechanisms are involved in regulating mitochondrial integrity and function, including antioxidant defense, mitochondrial quality control, mitochondrial DNA (mtDNA) repair, mitochondrial dynamics, mitophagy, and mitochondrial biogenesis. Currently, many studies have used mitochondrial dysfunction as a targeted therapeutic strategy for AKI. Therefore, this review aims to present the latest research advancements on mitochondrial dysfunction in AKI, providing a valuable reference and theoretical foundation for clinical prevention and treatment of this condition, ultimately enhancing patient prognosis.
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Affiliation(s)
- Congcong Yao
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Ziwei Li
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Keke Sun
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan Zhang
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Songtao Shou
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Heng Jin
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
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Su J, Xiao J, Deng X, Lin X, Xie L, Ye H, Lin C, Zhou F, Wu S. Combining Aloin with TIENAM ameliorates cecal ligation and puncture-induced sepsis in mice by attenuating inflammation and modulating abdominal cavity microbiota. Int Immunopharmacol 2024; 141:112925. [PMID: 39154534 DOI: 10.1016/j.intimp.2024.112925] [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: 04/13/2024] [Revised: 08/01/2024] [Accepted: 08/09/2024] [Indexed: 08/20/2024]
Abstract
Despite the high mortality rate, sepsis lacks specific and effective treatment options. Conventional antibiotics, such as TIENAM (TIE; imipenem and cilastatin sodium for injection), face challenges owing to the emergence of bacterial resistance, which reduces their effectiveness and causes adverse effects. Addressing resistance and judicious drug use is crucial. Our research revealed that aloin (Alo) significantly boosts survival rates and reduces inflammation and bacterial load in mice with sepsis, demonstrating strong antimicrobial activity. Using a synergistic Alo + TIE regimen in a cecal ligation and puncture (CLP)-induced sepsis model, we observed a remarkable increase in survival rates from 10 % to 75 % within 72 h compared with the CLP group alone. This combination therapy also modulated inflammatory markers interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α, mitigated tissue damage, regulated immune cells by lowering NK, activated CD8+ and CD4+ T cells while increasing peritoneal macrophages, and decreased the bacterial load in the peritoneal cavity. We noted a significant shift in the abdominal cavity microbiota composition post-treatment, with a decrease in harmful bacteria, such as Lachnospiraceae_NK4A136_group, Klebsiella, Bacillus, and Escherichia, and an increase in beneficial bacteria, such as Lactobacillus and Mucispirillum. Our study emphasizes the efficacy of combining Alo with TIE to combat sepsis, and paves the way for further investigations and potential clinical applications aiming to overcome the limitations of TIE and enhance the therapeutic prospects of Alo.
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Affiliation(s)
- Jingqian Su
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, Fujian Province 350117, PR China.
| | - Jianbin Xiao
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, Fujian Province 350117, PR China
| | - Xiaohui Deng
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, Fujian Province 350117, PR China
| | - Xinrui Lin
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, Fujian Province 350117, PR China
| | - Lian Xie
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, Fujian Province 350117, PR China
| | - Hui Ye
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, Fujian Province 350117, PR China
| | - Congfan Lin
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, Fujian Province 350117, PR China
| | - Fen Zhou
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, Fujian Province 350117, PR China
| | - Shun Wu
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, Fujian Province 350117, PR China
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Weerasinghe H, Stölting H, Rose AJ, Traven A. Metabolic homeostasis in fungal infections from the perspective of pathogens, immune cells, and whole-body systems. Microbiol Mol Biol Rev 2024:e0017122. [PMID: 39230301 DOI: 10.1128/mmbr.00171-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024] Open
Abstract
SUMMARYThe ability to overcome metabolic stress is a major determinant of outcomes during infections. Pathogens face nutrient and oxygen deprivation in host niches and during their encounter with immune cells. Immune cells require metabolic adaptations for producing antimicrobial compounds and mounting antifungal inflammation. Infection also triggers systemic changes in organ metabolism and energy expenditure that range from an enhanced metabolism to produce energy for a robust immune response to reduced metabolism as infection progresses, which coincides with immune and organ dysfunction. Competition for energy and nutrients between hosts and pathogens means that successful survival and recovery from an infection require a balance between elimination of the pathogen by the immune systems (resistance), and doing so with minimal damage to host tissues and organs (tolerance). Here, we discuss our current knowledge of pathogen, immune cell and systemic metabolism in fungal infections, and the impact of metabolic disorders, such as obesity and diabetes. We put forward the idea that, while our knowledge of the use of metabolic regulation for fungal proliferation and antifungal immune responses (i.e., resistance) has been growing over the years, we also need to study the metabolic mechanisms that control tolerance of fungal pathogens. A comprehensive understanding of how to balance resistance and tolerance by metabolic interventions may provide insights into therapeutic strategies that could be used adjunctly with antifungal drugs to improve patient outcomes.
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Affiliation(s)
- Harshini Weerasinghe
- Department of Biochemistry and Molecular Biology and the Infection Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Centre to Impact AMR, Monash University, Clayton, Victoria, Australia
| | - Helen Stölting
- Department of Biochemistry and Molecular Biology and the Metabolism, Diabetes and Obesity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Adam J Rose
- Department of Biochemistry and Molecular Biology and the Metabolism, Diabetes and Obesity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Ana Traven
- Department of Biochemistry and Molecular Biology and the Infection Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Centre to Impact AMR, Monash University, Clayton, Victoria, Australia
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Silva-Gomes R, Caldeira I, Fernandes R, Cunha C, Carvalho A. Metabolic regulation of the host-fungus interaction: from biological principles to therapeutic opportunities. J Leukoc Biol 2024; 116:469-486. [PMID: 38498599 DOI: 10.1093/jleuko/qiae045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/11/2024] [Accepted: 02/19/2024] [Indexed: 03/20/2024] Open
Abstract
Fungal infections present a significant global public health concern, impacting over 1 billion individuals worldwide and resulting in more than 3 million deaths annually. Despite considerable progress in recent years, the management of fungal infections remains challenging. The limited development of novel diagnostic and therapeutic approaches is largely attributed to our incomplete understanding of the pathogenetic mechanisms involved in these diseases. Recent research has highlighted the pivotal role of cellular metabolism in regulating the interaction between fungi and their hosts. In response to fungal infection, immune cells undergo complex metabolic adjustments to meet the energy demands necessary for an effective immune response. A comprehensive understanding of the metabolic circuits governing antifungal immunity, combined with the integration of individual host traits, holds the potential to inform novel medical interventions for fungal infections. This review explores recent insights into the immunometabolic regulation of host-fungal interactions and the infection outcome and discusses how the metabolic repurposing of immune cell function could be exploited in innovative and personalized therapeutic approaches.
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Affiliation(s)
- Rita Silva-Gomes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Inês Caldeira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Raquel Fernandes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cristina Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Agostinho Carvalho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Liu C, Wei W, Huang Y, Fu P, Zhang L, Zhao Y. Metabolic reprogramming in septic acute kidney injury: pathogenesis and therapeutic implications. Metabolism 2024; 158:155974. [PMID: 38996912 DOI: 10.1016/j.metabol.2024.155974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 07/06/2024] [Accepted: 07/09/2024] [Indexed: 07/14/2024]
Abstract
Acute kidney injury (AKI) is a frequent and severe complication of sepsis and is characterized by significant mortality and morbidity. However, the pathogenesis of septic acute kidney injury (S-AKI) remains elusive. Metabolic reprogramming, which was originally referred to as the Warburg effect in cancer, is strongly related to S-AKI. At the onset of sepsis, both inflammatory cells and renal parenchymal cells, such as macrophages, neutrophils and renal tubular epithelial cells, undergo metabolic shifts toward aerobic glycolysis to amplify proinflammatory responses and fortify cellular resilience to septic stimuli. As the disease progresses, these cells revert to oxidative phosphorylation, thus promoting anti-inflammatory reactions and enhancing functional restoration. Alterations in mitochondrial dynamics and metabolic reprogramming are central to the energetic changes that occur during S-AKI. In this review, we summarize the current understanding of the pathogenesis of metabolic reprogramming in S-AKI, with a focus on each cell type involved. By identifying relevant key regulatory factors, we also explored potential metabolic reprogramming-related therapeutic targets for the management of S-AKI.
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Affiliation(s)
- Caihong Liu
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Wei Wei
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yongxiu Huang
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Ping Fu
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Ling Zhang
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Yuliang Zhao
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China.
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Kranidioti E, Ricaño-Ponce I, Antonakos N, Kyriazopoulou E, Kotsaki A, Tsangaris I, Markopoulou D, Rovina N, Antoniadou E, Koutsodimitropoulos I, Dalekos GN, Vlachogianni G, Akinosoglou K, Koulouras V, Komnos A, Kontopoulou T, Dimopoulos G, Netea MG, Kumar V, Giamarellos-Bourboulis EJ. Modulation of Metabolomic Profile in Sepsis According to the State of Immune Activation. Crit Care Med 2024:00003246-990000000-00367. [PMID: 39178163 DOI: 10.1097/ccm.0000000000006391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2024]
Abstract
OBJECTIVE To investigate the metabolomic profiles associated with different immune activation states in sepsis patients. DESIGN Subgroup analysis of the PROVIDE (a Personalized Randomized trial of Validation and restoration of Immune Dysfunction in severe infections and Sepsis) prospective clinical study. SETTING Results of the PROVIDE study showed that patients with sepsis may be classified into three states of immune activation: 1) macrophage-activation-like syndrome (MALS) characterized by hyperinflammation, sepsis-induced immunoparalysis, and 3) unclassified or intermediate patients without severe immune dysregulation. PATIENTS OR SUBJECTS Two hundred ten patients from 14 clinical sites in Greece meeting the Sepsis-3 definitions with lung infection, acute cholangitis, or primary bacteremia. INTERVENTIONS During our comparison, we did not perform any intervention. MEASUREMENTS AND MAIN RESULTS Untargeted metabolomics analysis was performed on plasma samples from 210 patients (a total of 1394 products). Differential abundance analysis identified 221 significantly different metabolites across the immune states. Metabolites were enriched in pathways related to ubiquinone biosynthesis, tyrosine metabolism, and tryptophan metabolism when comparing MALS to immunoparalysis and unclassified patients. When comparing MALS to unclassified, 312 significantly different metabolites were found, and pathway analysis indicated enrichment in multiple pathways. Comparing immunoparalysis to unclassified patients revealed only two differentially regulated metabolites. CONCLUSIONS Findings suggest distinct metabolic dysregulation patterns associated with different immune dysfunctions in sepsis: the strongest metabolic dysregulation is associated with MALS.
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Affiliation(s)
- Eleftheria Kranidioti
- First Department of Internal Medicine, Evangelismos General Hospital, Athens, Greece
| | - Isis Ricaño-Ponce
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Nikolaos Antonakos
- Fourth Department of Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Evdoxia Kyriazopoulou
- Fourth Department of Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Antigone Kotsaki
- Fourth Department of Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Iraklis Tsangaris
- Second Department of Critical Care Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Nikoleta Rovina
- First Department of Pulmonary Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Eleni Antoniadou
- Intensive Care Unit, "G. Gennimatas" Thessaloniki General Hospital, Thessaloniki, Greece
| | | | - George N Dalekos
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, Full Member of the European Reference Network on Hepatological Diseases (ERN RARE-LIVER), General University Hospital of Larissa, Larissa, Greece
| | - Glykeria Vlachogianni
- Intensive Care Unit, "Aghios Dimitrios" Thessaloniki General Hospital, Thessaloniki, Greece
| | | | - Vasilios Koulouras
- Department of Critical Care Medicine, University of Ioannina, Ioannina, Greece
| | | | - Theano Kontopoulou
- First Department of Internal Medicine, Evangelismos General Hospital, Athens, Greece
| | - George Dimopoulos
- Third Department of Critical Care Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
- Department of Immunology and Metabolism, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Vinod Kumar
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Evangelos J Giamarellos-Bourboulis
- Fourth Department of Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
- Hellenic Institute for the Study of Sepsis, Athens, Greece
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7
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Wang W, Ma L, Liu B, Ouyang L. The role of trained immunity in sepsis. Front Immunol 2024; 15:1449986. [PMID: 39221248 PMCID: PMC11363069 DOI: 10.3389/fimmu.2024.1449986] [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: 06/16/2024] [Accepted: 07/31/2024] [Indexed: 09/04/2024] Open
Abstract
Sepsis is defined as a life-threatening organ dysfunction syndrome caused by dysregulated host response to infection, characterized by a systemic inflammatory response to infection. The use of antibiotics, fluid resuscitation, and organ support therapy has limited prognostic benefit in patients with sepsis, and its incidence is not diminishing, which is attracting increased attention in medicine. Sepsis remains one of the most debilitating and expensive illnesses. One of the main reasons of septic mortality is now understood to be disruption of immune homeostasis. Immunotherapy is revolutionizing the treatment of illnesses in which dysregulated immune responses play a significant role. This "trained immunity", which is a potent defense against infection regardless of the type of bacteria, fungus, or virus, is attributed to the discovery that the innate immune cells possess immune memory via metabolic and epigenetic reprogramming. Here we reviewed the immunotherapy of innate immune cells in sepsis, the features of trained immunity, and the relationship between trained immunity and sepsis.
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Affiliation(s)
| | | | | | - Liangliang Ouyang
- Department of Medical Laboratory, Affiliated Hospital of Jiujiang University, Jiujiang, Jiangxi, China
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8
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Joosten SCM, Wiersinga WJ, Poll TVD. Dysregulation of Host-Pathogen Interactions in Sepsis: Host-Related Factors. Semin Respir Crit Care Med 2024; 45:469-478. [PMID: 38950605 DOI: 10.1055/s-0044-1787554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
Sepsis stands as a prominent contributor to sickness and death on a global scale. The most current consensus definition characterizes sepsis as a life-threatening organ dysfunction stemming from an imbalanced host response to infection. This definition does not capture the intricate array of immune processes at play in sepsis, marked by simultaneous states of heightened inflammation and immune suppression. This overview delves into the immune-related processes of sepsis, elaborating about mechanisms involved in hyperinflammation and immune suppression. Moreover, we discuss stratification of patients with sepsis based on their immune profiles and how this could impact future sepsis management.
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Affiliation(s)
- Sebastiaan C M Joosten
- Centre for Experimental and Molecular Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Willem J Wiersinga
- Centre for Experimental and Molecular Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
- Division of Infectious Diseases, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Tom van der Poll
- Centre for Experimental and Molecular Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
- Division of Infectious Diseases, Amsterdam University Medical Center, Amsterdam, The Netherlands
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9
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Jing S, Zhang Y, Zhao W, Li Y, Wen Y. The predictive value of peripheral blood cell mitochondrial gene expression in identifying the prognosis in pediatric sepsis at preschool age. Front Cell Infect Microbiol 2024; 14:1413103. [PMID: 39113822 PMCID: PMC11303305 DOI: 10.3389/fcimb.2024.1413103] [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: 04/06/2024] [Accepted: 07/08/2024] [Indexed: 08/10/2024] Open
Abstract
Background Sepsis represents a severe manifestation of infection often accompanied by metabolic disorders and mitochondrial dysfunction. Notably, mitochondrial DNA copy number (mtDNA-CN) and the expression of specific mitochondrial genes have emerged as sensitive indicators of mitochondrial function. To investigate the utility of mitochondrial gene expression in peripheral blood cells for distinguishing severe infections and predicting associated outcomes, we conducted a prospective cohort study. Methods We established a prospective cohort comprising 74 patients with non-sepsis pneumonia and 67 cases of sepsis induced by respiratory infections, aging from 2 to 6 years old. We documented corresponding clinical data and laboratory information and collected blood samples upon initial hospital admission. Peripheral blood cells were promptly isolated, and both total DNA and RNA were extracted. We utilized absolute quantification PCR to assess mtDNA-CN, as well as the expression levels of mt-CO1, mt-ND1, and mt-ATP6. Subsequently, we extended these comparisons to include survivors and non-survivors among patients with sepsis using univariate and multivariate analyses. Receiver operating characteristic (ROC) curves were constructed to assess the diagnostic potential. Results The mtDNA-CN in peripheral blood cells was significantly lower in the sepsis group. Univariate analysis revealed a significant reduction in the expression of mt-CO1, mt-ND1, and mt-ATP6 in patients with sepsis. However, multivariate analysis did not support the use of mitochondrial function in peripheral blood cells for sepsis diagnosis. In the comparison between pediatric sepsis survivors and non-survivors, univariate analysis indicated a substantial reduction in the expression of mt-CO1, mt-ND1, and mt-ATP6 among non-survivors. Notably, total bilirubin (TB), mt-CO1, mt-ND1, and mt-ATP6 levels were identified as independent risk factors for sepsis-induced mortality. ROC curves were then established for these independent risk factors, revealing areas under the curve (AUCs) of 0.753 for TB (95% CI 0.596-0.910), 0.870 for mt-CO1 (95% CI 0.775-0.965), 0.987 for mt-ND1 (95% CI 0.964-1.000), and 0.877 for mt-ATP6 (95% CI 0.793-0.962). Conclusion MtDNA-CN and mitochondrial gene expression are closely linked to the severity and clinical outcomes of infectious diseases. Severe infections lead to impaired mitochondrial function in peripheral blood cells. Notably, when compared to other laboratory parameters, the expression levels of mt-CO1, mt-ND1, and mt-ATP6 demonstrate promising potential for assessing the prognosis of pediatric sepsis.
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Affiliation(s)
- Siyuan Jing
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yue Zhang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wanling Zhao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yifei Li
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yan Wen
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of Emergency, Chengdu Women’s and Children’s Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
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10
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Assis PA, Allen RM, Schaller MA, Kunkel SL, Bermick JR. Metabolic reprogramming and dysregulated IL-17 production impairs CD4 T cell function post sepsis. iScience 2024; 27:110114. [PMID: 39015145 PMCID: PMC11251092 DOI: 10.1016/j.isci.2024.110114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/05/2023] [Accepted: 05/23/2024] [Indexed: 07/18/2024] Open
Abstract
Sepsis survivors are at high risk for infection-related rehospitalization and mortality for years following the resolution of the acute septic event. These infection-causing microorganisms generally do not cause disease in immunocompetent hosts, suggesting that the post-septic immune response is compromised. Given the importance of CD4 T cells in the development of long-lasting protective immunity, we analyzed their post-septic function. Here we showed that sepsis induced chronic increased and non-specific production of IL-17 by CD4 T cells, resulting in the inability to mount an effective immune response to a secondary pneumonia challenge. Altered cell function was associated with metabolic reprogramming, characterized by mitochondrial dysfunction and increased glycolysis. This metabolic reprogramming began during the acute septic event and persisted long after sepsis had resolved. Our findings reveal cell metabolism as a potential therapeutic target. Given the critical role of cell metabolism in the physiological and pathophysiological processes of immune cells, these findings reveal a potential new therapeutic target to help mitigate sepsis survivors' susceptibility to secondary infections.
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Affiliation(s)
- Patricia A. Assis
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Ronald M. Allen
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Matthew A. Schaller
- Division of Pulmonary, Critical Care & Sleep Medicine, University of Florida College of Medicine, Gainesville, FL, USA
| | - Steven L. Kunkel
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Jennifer R. Bermick
- Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
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11
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Cartes-Velásquez R, Vera A, Antilef B, Sanhueza S, Lamperti L, González-Ortiz M, Nova-Lamperti E. Metformin Restrains the Proliferation of CD4+ T Lymphocytes by Inducing Cell Cycle Arrest in Normo- and Hyperglycemic Conditions. Biomolecules 2024; 14:846. [PMID: 39062560 PMCID: PMC11274706 DOI: 10.3390/biom14070846] [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: 03/27/2024] [Revised: 05/14/2024] [Accepted: 05/23/2024] [Indexed: 07/28/2024] Open
Abstract
CD4+ T lymphocytes play a key role in the modulation of the immune response by orchestrating both effector and regulatory functions. The effect of metformin on the immunometabolism of CD4+ T lymphocytes has been scarcely studied, and its impact under high glucose conditions, particularly concerning effector responses and glucose metabolism, remains unknown. This study aims to evaluate the effect of metformin on the modulation of the effector functions and glucose metabolism of CD4+ T lymphocytes under normo- and hyperglycemic conditions. CD4+ T lymphocytes, obtained from peripheral blood from healthy volunteers, were anti-CD3/CD28-activated and cultured for 4 days with three concentrations of metformin (0.1 mM, 1 mM, and 5 mM) under normoglycemic (5.5 mM) and hyperglycemic (25 mM) conditions. Effector functions such as proliferation, cell count, cell cycle analysis, activation markers and cytokine secretion were analyzed by flow cytometry. Glucose uptake was determined using the 2-NBDG assay, and levels of glucose, lactate, and phosphofructokinase (PFK) activity were assessed by colorimetric assays. Metformin at 5 mM restrained the cell counts and proliferation of CD4+ T lymphocytes by arresting the cell cycle in the S/G2 phase at the beginning of the cell culture, without affecting cell activation, cytokine production, and glucose metabolism. In fact, CD69 expression and IL4 secretion by CD4+ T lymphocytes was higher in the presence of 5 mM than the untreated cells in both glucose conditions. Overall, metformin inhibited proliferation through mechanisms associated with cell cycle arrest, leading to an increase in the S/G2 phases at the expense of G1 in activated CD4+ T lymphocytes in normo- and hyperglycemic conditions. Despite the cell cycle arrest, activated CD4+ T lymphocytes remained metabolically, functionally, and phenotypically activated.
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Affiliation(s)
- Ricardo Cartes-Velásquez
- School of Medicine, University of Concepcion, Concepcion 4070409, Chile
- Molecular and Translational Immunology Laboratory, Department of Clinical Biochemistry and Immunology, Pharmacy Faculty, University of Concepcion, Concepcion 4070409, Chile; (A.V.)
| | - Agustín Vera
- Molecular and Translational Immunology Laboratory, Department of Clinical Biochemistry and Immunology, Pharmacy Faculty, University of Concepcion, Concepcion 4070409, Chile; (A.V.)
| | - Bárbara Antilef
- Molecular and Translational Immunology Laboratory, Department of Clinical Biochemistry and Immunology, Pharmacy Faculty, University of Concepcion, Concepcion 4070409, Chile; (A.V.)
| | - Sergio Sanhueza
- Molecular and Translational Immunology Laboratory, Department of Clinical Biochemistry and Immunology, Pharmacy Faculty, University of Concepcion, Concepcion 4070409, Chile; (A.V.)
| | - Liliana Lamperti
- Molecular and Translational Immunology Laboratory, Department of Clinical Biochemistry and Immunology, Pharmacy Faculty, University of Concepcion, Concepcion 4070409, Chile; (A.V.)
| | - Marcelo González-Ortiz
- Laboratorio de Investigación Materno-Fetal (LIMaF), Departamento de Obstetricia y Ginecología, Universidad de Concepción, Concepción 4070409, Chile
| | - Estefanía Nova-Lamperti
- Molecular and Translational Immunology Laboratory, Department of Clinical Biochemistry and Immunology, Pharmacy Faculty, University of Concepcion, Concepcion 4070409, Chile; (A.V.)
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12
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Zhang X, Zhang Y, Yuan S, Zhang J. The potential immunological mechanisms of sepsis. Front Immunol 2024; 15:1434688. [PMID: 39040114 PMCID: PMC11260823 DOI: 10.3389/fimmu.2024.1434688] [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: 05/18/2024] [Accepted: 06/25/2024] [Indexed: 07/24/2024] Open
Abstract
Sepsis is described as a life-threatening organ dysfunction and a heterogeneous syndrome that is a leading cause of morbidity and mortality in intensive care settings. Severe sepsis could incite an uncontrollable surge of inflammatory cytokines, and the host immune system's immunosuppression could respond to counter excessive inflammatory responses, characterized by the accumulated anti-inflammatory cytokines, impaired function of immune cells, over-proliferation of myeloid-derived suppressor cells and regulatory T cells, depletion of immune effector cells by different means of death, etc. In this review, we delve into the underlying pathological mechanisms of sepsis, emphasizing both the hyperinflammatory phase and the associated immunosuppression. We offer an in-depth exploration of the critical mechanisms underlying sepsis, spanning from individual immune cells to a holistic organ perspective, and further down to the epigenetic and metabolic reprogramming. Furthermore, we outline the strengths of artificial intelligence in analyzing extensive datasets pertaining to septic patients, showcasing how classifiers trained on various clinical data sources can identify distinct sepsis phenotypes and thus to guide personalized therapy strategies for the management of sepsis. Additionally, we provide a comprehensive summary of recent, reliable biomarkers for hyperinflammatory and immunosuppressive states, facilitating more precise and expedited diagnosis of sepsis.
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Affiliation(s)
- Xinyu Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yujing Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shiying Yuan
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiancheng Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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13
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Liang G, Hu JY, Liu RJ, Chao YP, Hu YF, Zheng H, Pan XY, Li YJ, Gong YH, Lin C, Lin JH, Wang JD, Li TX, Pan JP, Guo DY. α-Ketoglutarate plays an inflammatory inhibitory role by regulating scavenger receptor class a expression through N6-methyladenine methylation during sepsis. Eur J Immunol 2024:e2350655. [PMID: 38973083 DOI: 10.1002/eji.202350655] [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: 07/09/2023] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 07/09/2024]
Abstract
Sepsis arises from an uncontrolled inflammatory response triggered by infection or stress, accompanied by alteration in cellular energy metabolism, and a strong correlation exists between these factors. Alpha-ketoglutarate (α-KG), an intermediate product of the TCA cycle, has the potential to modulate the inflammatory response and is considered a crucial link between energy metabolism and inflammation. The scavenger receptor (SR-A5), a significant pattern recognition receptor, assumes a vital function in anti-inflammatory reactions. In the current investigation, we have successfully illustrated the ability of α-KG to mitigate inflammatory factors in the serum of septic mice and ameliorate tissue damage. Additionally, α-KG has been shown to modulate metabolic reprogramming and macrophage polarization. Moreover, our findings indicate that the regulatory influence of α-KG on sepsis is mediated through SR-A5. We also elucidated the mechanism by which α-KG regulates SR-A5 expression and found that α-KG reduced the N6-methyladenosine level of macrophages by up-regulating the m6A demethylase ALKBH5. α-KG plays a crucial role in inhibiting inflammation by regulating SR-A5 expression through m6A demethylation during sepsis. The outcomes of this research provide valuable insights into the relationship between energy metabolism and inflammation regulation, as well as the underlying molecular regulatory mechanism.
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Affiliation(s)
- Gang Liang
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
- Zhejiang University school of medicine, Hangzhou, P. R. China
| | - Jia-Yan Hu
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Rou-Jun Liu
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Yu-Peng Chao
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Yi-Fan Hu
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Hong Zheng
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Xin-Yu Pan
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Yuan-Jing Li
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Yang-Hui Gong
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Chi Lin
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Jia-Hao Lin
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Jia-Dong Wang
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Tong-Xin Li
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Jian-Ping Pan
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
- Institute of Translational Medicine, Hangzhou City University, Hangzhou, P.R. China
| | - Dong-Yang Guo
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
- Institute of Translational Medicine, Hangzhou City University, Hangzhou, P.R. China
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14
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Zhang L, Wu Z, Qiu X, Zhang J, Cheng SC. Glutamate oxaloacetate transaminase 1 is dispensable in macrophage differentiation and anti-pathogen response. Commun Biol 2024; 7:817. [PMID: 38965342 PMCID: PMC11224350 DOI: 10.1038/s42003-024-06479-w] [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: 10/29/2023] [Accepted: 06/21/2024] [Indexed: 07/06/2024] Open
Abstract
Macrophages play a pivotal role in orchestrating the immune response against pathogens. While the intricate interplay between macrophage activation and metabolism remains a subject of intense investigation, the role of glutamate oxaloacetate transaminase 1 (Got1) in this context has not been extensively assessed. Here, we investigate the impact of Got1 on macrophage polarization and function, shedding light on its role in reactive oxygen species (ROS) production, pathogen defense, and immune paralysis. Using genetically modified mouse models, including both myeloid specific knockout and overexpression, we comprehensively demonstrate that Got1 depletion leads to reduced ROS production in macrophages. Intriguingly, this impairment in ROS generation does not affect the resistance of Got1 KO mice to pathogenic challenges. Furthermore, Got1 is dispensable for M2 macrophage differentiation and does not influence the onset of LPS-induced immune paralysis. Our findings underscore the intricate facets of macrophage responses, suggesting that Got1 is dispensable in discrete immunological processes.
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Affiliation(s)
- Lishan Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Science, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Zhengyi Wu
- State Key Laboratory of Cellular Stress Biology, School of Life Science, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Xuanhui Qiu
- State Key Laboratory of Cellular Stress Biology, School of Life Science, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Jia Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Science, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Shih-Chin Cheng
- State Key Laboratory of Cellular Stress Biology, School of Life Science, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China.
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15
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Ongwe MEB, Mouwenda YD, Manurung MD, Heieis G, Azimi S, Adegnika AA, Kremsner PG, Kuijpers TW, Yazdanbakhsh M, Everts B. Potentiation of the axis involving pentose phosphate pathway/NADPH oxidase/reactive oxygen species drives higher IL-10 production in monocytes of Sub-Saharan Africans. Eur J Immunol 2024:e2451029. [PMID: 38873882 DOI: 10.1002/eji.202451029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/15/2024]
Abstract
Cellular metabolism is a key determinant of immune cell function. Here we found that CD14+ monocytes from Sub-Saharan Africans produce higher levels of IL-10 following TLR-4 stimulation and are bioenergetically distinct from monocytes from Europeans. Through metabolomic profiling, we identified the higher IL-10 production to be driven by increased baseline production of NADPH oxidase-dependent reactive oxygen species, supported by enhanced pentose phosphate pathway activity. Together, these data indicate that NADPH oxidase-derived ROS is a metabolic checkpoint in monocytes that governs their inflammatory profile and uncovers a metabolic basis for immunological differences across geographically distinct populations.
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Affiliation(s)
- Madeleine Eunice Betouke Ongwe
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institut de Recherches en Écologie Tropicale, Centre National de la Recherche Scientifique et Technologique, Libreville, Gabon
| | - Yoanne D Mouwenda
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
| | - Mikhael D Manurung
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | - Graham Heieis
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | - Shohreh Azimi
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | - Ayola A Adegnika
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institut für Tropenmedizin, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
- German Center for Infection Research, Tübingen, Germany
| | - Peter G Kremsner
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
- Institut für Tropenmedizin, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
| | - Taco W Kuijpers
- Sanquin Research, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
- Emma Children's Hospital, Academic Medical Center, Dept of Paediatric Immunology, Rheumatology and Infectious Diseases, University of Amsterdam, Amsterdam, the Netherlands
| | - Maria Yazdanbakhsh
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | - Bart Everts
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
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16
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Gonçalves SM, Pereira I, Feys S, Cunha C, Chamilos G, Hoenigl M, Wauters J, van de Veerdonk FL, Carvalho A. Integrating genetic and immune factors to uncover pathogenetic mechanisms of viral-associated pulmonary aspergillosis. mBio 2024; 15:e0198223. [PMID: 38651925 PMCID: PMC11237550 DOI: 10.1128/mbio.01982-23] [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] [Indexed: 04/25/2024] Open
Abstract
Invasive pulmonary aspergillosis is a severe fungal infection primarily affecting immunocompromised patients. Individuals with severe viral infections have recently been identified as vulnerable to developing invasive fungal infections. Both influenza-associated pulmonary aspergillosis (IAPA) and COVID-19-associated pulmonary aspergillosis (CAPA) are linked to high mortality rates, emphasizing the urgent need for an improved understanding of disease pathogenesis to unveil new molecular targets with diagnostic and therapeutic potential. The recent establishment of animal models replicating the co-infection context has offered crucial insights into the mechanisms that underlie susceptibility to disease. However, the development and progression of human viral-fungal co-infections exhibit a significant degree of interindividual variability, even among patients with similar clinical conditions. This observation implies a significant role for host genetics, but information regarding the genetic basis for viral-fungal co-infections is currently limited. In this review, we discuss how genetic factors known to affect either antiviral or antifungal immunity could potentially reveal pathogenetic mechanisms that predispose to IAPA or CAPA and influence the overall disease course. These insights are anticipated to foster further research in both pre-clinical models and human patients, aiming to elucidate the complex pathophysiology of viral-associated pulmonary aspergillosis and contributing to the identification of new diagnostic and therapeutic targets to improve the management of these co-infections.
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Affiliation(s)
- Samuel M Gonçalves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Inês Pereira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Simon Feys
- Medical Intensive Care Unit, Department of General Internal Medicine, University Hospitals Leuven, Leuven, Belgium
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Cristina Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Georgios Chamilos
- Laboratory of Clinical Microbiology and Microbial Pathogenesis, School of Medicine, University of Crete, Heraklion, Crete, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, Heraklion, Crete, Greece
| | - Martin Hoenigl
- Division of Infectious Diseases, ECMM Excellence Center for Medical Mycology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- BioTechMed, Graz, Austria
| | - Joost Wauters
- Medical Intensive Care Unit, Department of General Internal Medicine, University Hospitals Leuven, Leuven, Belgium
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Frank L van de Veerdonk
- Department of Internal Medicine, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands
- Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands
| | - Agostinho Carvalho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Guimarães/Braga, Portugal
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17
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Jariyasakoolroj T, Chattipakorn SC, Chattipakorn N. Potential biomarkers used for risk estimation of pediatric sepsis-associated organ dysfunction and immune dysregulation. Pediatr Res 2024:10.1038/s41390-024-03289-y. [PMID: 38834784 DOI: 10.1038/s41390-024-03289-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/03/2024] [Accepted: 05/11/2024] [Indexed: 06/06/2024]
Abstract
Pediatric sepsis is a serious issue globally and is a significant cause of illness and death among infants and children. Refractory septic shock and multiple organ dysfunction syndrome are the primary causes of mortality in children with sepsis. However, there is incomplete understanding of mechanistic insight of sepsis associated organ dysfunction. Biomarkers present during the body's response to infection-related inflammation can be used for screening, diagnosis, risk stratification/prognostication, and/or guidance in treatment decision-making. Research on biomarkers in children with sepsis can provide information about the risk of poor outcomes and sepsis-related organ dysfunction. This review focuses on clinically used biomarkers associated with immune dysregulation and organ dysfunction in pediatric sepsis, which could be useful for developing precision medicine strategies in pediatric sepsis management in the future. IMPACT: Sepsis is a complex syndrome with diverse clinical presentations, where organ dysfunction is a key factor in morbidity and mortality. Early detection of organ complications is vital in sepsis management, and potential biomarkers offer promise for precision medicine in pediatric cases. Well-designed studies are needed to identify phase-specific biomarkers and improve outcomes through more precise management.
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Affiliation(s)
- Theerapon Jariyasakoolroj
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
- Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand.
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
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18
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Orsini EM, Roychowdhury S, Gangadhariah M, Cross E, Abraham S, Reinhardt A, Grund ME, Zhou JY, Stuehr O, Pant B, Olman MA, Vachharajani V, Scheraga RG. TRPV4 Regulates the Macrophage Metabolic Response to Limit Sepsis-induced Lung Injury. Am J Respir Cell Mol Biol 2024; 70:457-467. [PMID: 38346220 PMCID: PMC11160412 DOI: 10.1165/rcmb.2023-0456oc] [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: 12/22/2023] [Accepted: 02/12/2024] [Indexed: 02/21/2024] Open
Abstract
Sepsis is a systemic inflammatory response that requires effective macrophage metabolic functions to resolve ongoing inflammation. Previous work showed that the mechanosensitive cation channel, transient receptor potential vanilloid 4 (TRPV4), mediates macrophage phagocytosis and cytokine production in response to lung infection. Here, we show that TRPV4 regulates glycolysis in a stiffness-dependent manner by augmenting macrophage glucose uptake by GLUT1. In addition, TRPV4 is required for LPS-induced phagolysosome maturation in a GLUT1-dependent manner. In a cecal slurry mouse model of sepsis, TRPV4 regulates sepsis-induced glycolysis as measured by BAL fluid (BALF) lactate and sepsis-induced lung injury as measured by BALF total protein and lung compliance. TRPV4 is necessary for bacterial clearance in the peritoneum to limit sepsis-induced lung injury. It is interesting that BALF lactate is increased in patients with sepsis compared with healthy control participants, supporting the relevance of lung cell glycolysis to human sepsis. These data show that macrophage TRPV4 is required for glucose uptake through GLUT1 for effective phagolysosome maturation to limit sepsis-induced lung injury. Our work presents TRPV4 as a potential target to protect the lung from injury in sepsis.
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Affiliation(s)
- Erica M. Orsini
- Department of Pulmonary and Critical Care, Integrated Hospital Care Institute, and
| | - Sanjoy Roychowdhury
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Mahesha Gangadhariah
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Emily Cross
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Susamma Abraham
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Amanda Reinhardt
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Megan E. Grund
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Julie Y. Zhou
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Olivia Stuehr
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Bishnu Pant
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Mitchell A. Olman
- Department of Pulmonary and Critical Care, Integrated Hospital Care Institute, and
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Vidula Vachharajani
- Department of Pulmonary and Critical Care, Integrated Hospital Care Institute, and
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Rachel G. Scheraga
- Department of Pulmonary and Critical Care, Integrated Hospital Care Institute, and
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
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19
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Wu Y, Wang L, Li Y, Cao Y, Wang M, Deng Z, Kang H. Immunotherapy in the context of sepsis-induced immunological dysregulation. Front Immunol 2024; 15:1391395. [PMID: 38835773 PMCID: PMC11148279 DOI: 10.3389/fimmu.2024.1391395] [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: 02/25/2024] [Accepted: 05/06/2024] [Indexed: 06/06/2024] Open
Abstract
Sepsis is a clinical syndrome caused by uncontrollable immune dysregulation triggered by pathogen infection, characterized by high incidence, mortality rates, and disease burden. Current treatments primarily focus on symptomatic relief, lacking specific therapeutic interventions. The core mechanism of sepsis is believed to be an imbalance in the host's immune response, characterized by early excessive inflammation followed by late immune suppression, triggered by pathogen invasion. This suggests that we can develop immunotherapeutic treatment strategies by targeting and modulating the components and immunological functions of the host's innate and adaptive immune systems. Therefore, this paper reviews the mechanisms of immune dysregulation in sepsis and, based on this foundation, discusses the current state of immunotherapy applications in sepsis animal models and clinical trials.
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Affiliation(s)
- Yiqi Wu
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- Graduate School of The People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Lu Wang
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- Graduate School of The People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Yun Li
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- Graduate School of The People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Yuan Cao
- Department of Emergency Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Min Wang
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- Graduate School of The People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Zihui Deng
- Department of Basic Medicine, Graduate School, Chinese PLA General Hospital, Beijing, China
| | - Hongjun Kang
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- National Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
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20
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Jing G, Zuo J, Liu Z, Liu H, Cheng M, Yuan M, Gong H, Wu X, Song X. Mendelian randomization analysis reveals causal associations of serum metabolites with sepsis and 28-day mortality. Sci Rep 2024; 14:11551. [PMID: 38773119 PMCID: PMC11109149 DOI: 10.1038/s41598-024-58160-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 03/26/2024] [Indexed: 05/23/2024] Open
Abstract
Metabolic disorder has been found to be an important factor in the pathogenesis and progression of sepsis. However, the causation of such an association between serum metabolites and sepsis has not been established. We conducted a two-sample Mendelian randomization (MR) study. A genome-wide association study of 486 human serum metabolites was used as the exposure, whereas sepsis and sepsis mortality within 28 days were set as the outcomes. In MR analysis, 6 serum metabolites were identified to be associated with an increased risk of sepsis, and 6 serum metabolites were found to be related to a reduced risk of sepsis. Furthermore, there were 9 metabolites positively associated with sepsis-related mortality, and 8 metabolites were negatively correlated with sepsis mortality. In addition, "glycolysis/gluconeogenesis" (p = 0.001), and "pyruvate metabolism" (p = 0.042) two metabolic pathways were associated with the incidence of sepsis. This MR study suggested that serum metabolites played significant roles in the pathogenesis of sepsis, which may provide helpful biomarkers for early disease diagnosis, therapeutic interventions, and prognostic assessments for sepsis.
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Affiliation(s)
- Guoqing Jing
- Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Jing Zuo
- Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhi Liu
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Huifan Liu
- Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Miao Cheng
- Jingmen Central Hospital, Jingmen, Hubei, China
| | - Min Yuan
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Hailong Gong
- Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xiaojing Wu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
| | - Xuemin Song
- Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
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21
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Wan Y, Liu J, Mai Y, Hong Y, Jia Z, Tian G, Liu Y, Liang H, Liu J. Current advances and future trends of hormesis in disease. NPJ AGING 2024; 10:26. [PMID: 38750132 PMCID: PMC11096327 DOI: 10.1038/s41514-024-00155-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 04/26/2024] [Indexed: 05/18/2024]
Abstract
Hormesis, an adaptive response, occurs when exposure to low doses of a stressor potentially induces a stimulatory effect, while higher doses may inhibit it. This phenomenon is widely observed across various organisms and stressors, significantly advancing our understanding and inspiring further exploration of the beneficial effects of toxins at doses both below and beyond traditional thresholds. This has profound implications for promoting biological regulation at the cellular level and enhancing adaptability throughout the biosphere. Therefore, conducting bibliometric analysis in this field is crucial for accurately analyzing and summarizing its current research status. The results of the bibliometric analysis reveal a steady increase in the number of publications in this field over the years. The United States emerges as the leading country in both publication and citation numbers, with the journal Dose-Response publishing the highest number of papers in this area. Calabrese E.J. is a prominent person with significant contributions and influence among authors. Through keyword co-occurrence and trend analysis, current hotspots in this field are identified, primarily focusing on the relationship between hormesis, oxidative stress, and aging. Analysis of highly cited references predicts that future research trends may center around the relationship between hormesis and stress at different doses, as well as exploring the mechanisms and applications of hormesis. In conclusion, this review aims to visually represent hormesis-related research through bibliometric methods, uncovering emerging patterns and areas of focus within the field. It provides a summary of the current research status and forecasts trends in hormesis-related research.
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Affiliation(s)
- Yantong Wan
- State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Jinxi Liu
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, China
| | - Yiyin Mai
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Yinghao Hong
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Zixuan Jia
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Guijie Tian
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Yunzhuo Liu
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Huaping Liang
- State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China.
| | - Jinghua Liu
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
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22
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Willmann K, Moita LF. Physiologic disruption and metabolic reprogramming in infection and sepsis. Cell Metab 2024; 36:927-946. [PMID: 38513649 DOI: 10.1016/j.cmet.2024.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 02/12/2024] [Accepted: 02/21/2024] [Indexed: 03/23/2024]
Abstract
Effective responses against severe systemic infection require coordination between two complementary defense strategies that minimize the negative impact of infection on the host: resistance, aimed at pathogen elimination, and disease tolerance, which limits tissue damage and preserves organ function. Resistance and disease tolerance mostly rely on divergent metabolic programs that may not operate simultaneously in time and space. Due to evolutionary reasons, the host initially prioritizes the elimination of the pathogen, leading to dominant resistance mechanisms at the potential expense of disease tolerance, which can contribute to organ failure. Here, we summarize our current understanding of the role of physiological perturbations resulting from infection in immune response dynamics and the metabolic program requirements associated with resistance and disease tolerance mechanisms. We then discuss how insight into the interplay of these mechanisms could inform future research aimed at improving sepsis outcomes and the potential for therapeutic interventions.
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Affiliation(s)
- Katharina Willmann
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | - Luis F Moita
- Innate Immunity and Inflammation Laboratory, Instituto Gulbenkian de Ciência, Oeiras, Portugal; Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.
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23
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Vuscan P, Kischkel B, Joosten LAB, Netea MG. Trained immunity: General and emerging concepts. Immunol Rev 2024; 323:164-185. [PMID: 38551324 DOI: 10.1111/imr.13326] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/11/2024] [Indexed: 05/18/2024]
Abstract
Over the past decade, compelling evidence has unveiled previously overlooked adaptive characteristics of innate immune cells. Beyond their traditional role in providing short, non-specific protection against pathogens, innate immune cells can acquire antigen-agnostic memory, exhibiting increased responsiveness to secondary stimulation. This long-term de-facto innate immune memory, also termed trained immunity, is mediated through extensive metabolic rewiring and epigenetic modifications. While the upregulation of trained immunity proves advantageous in countering immune paralysis, its overactivation contributes to the pathogenesis of autoinflammatory and autoimmune disorders. In this review, we present the latest advancements in the field of innate immune memory followed by a description of the fundamental mechanisms underpinning trained immunity generation and different cell types that mediate it. Furthermore, we explore its implications for various diseases and examine current limitations and its potential therapeutic targeting in immune-related disorders.
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Affiliation(s)
- Patricia Vuscan
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Brenda Kischkel
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Department for Immunology and Metabolism, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
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24
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Mishra B, Ivashkiv LB. Interferons and epigenetic mechanisms in training, priming and tolerance of monocytes and hematopoietic progenitors. Immunol Rev 2024; 323:257-275. [PMID: 38567833 PMCID: PMC11102283 DOI: 10.1111/imr.13330] [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: 01/27/2024] [Accepted: 03/11/2024] [Indexed: 05/18/2024]
Abstract
Training and priming of innate immune cells involve preconditioning by PAMPs, DAMPs, and/or cytokines that elicits stronger induction of inflammatory genes upon secondary challenge. Previous models distinguish training and priming based upon whether immune activation returns to baseline prior to secondary challenge. Tolerance is a protective mechanism whereby potent stimuli induce refractoriness to secondary challenge. Training and priming are important for innate memory responses that protect against infection, efficacy of vaccines, and maintaining innate immune cells in a state of readiness; tolerance prevents toxicity from excessive immune activation. Dysregulation of these processes can contribute to pathogenesis of autoimmune/inflammatory conditions, post-COVID-19 hyperinflammatory states, or sepsis-associated immunoparalysis. Training, priming, and tolerance regulate similar "signature" inflammatory genes such as TNF, IL6, and IL1B and utilize overlapping epigenetic mechanisms. We review how interferons (IFNs), best known for activating JAK-STAT signaling and interferon-stimulated genes, also play a key role in regulating training, priming, and tolerance via chromatin-mediated mechanisms. We present new data on how monocyte-to-macrophage differentiation modulates IFN-γ-mediated priming, affects regulation of AP-1 and CEBP activity, and attenuates superinduction of inflammatory genes. We present a "training-priming continuum" model that integrates IFN-mediated priming into current concepts about training and tolerance and proposes a central role for STAT1 and IRF1.
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Affiliation(s)
- Bikash Mishra
- HSS Research Institute and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Medicine, New York, New York, USA
| | - Lionel B Ivashkiv
- HSS Research Institute and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Medicine, New York, New York, USA
- Department of Medicine, Weill Cornell Medicine, New York, New York, USA
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25
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Huang S, Liu D, Han L, Deng J, Wang Z, Jiang J, Zeng L. Decoding the potential role of regulatory T cells in sepsis-induced immunosuppression. Eur J Immunol 2024; 54:e2350730. [PMID: 38430202 DOI: 10.1002/eji.202350730] [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: 08/24/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 03/03/2024]
Abstract
Sepsis, a multiorgan dysfunction with high incidence and mortality, is caused by an imbalanced host-to-infection immune response. Organ-support therapy improves the early survival rate of sepsis patients. In the long term, those who survive the "cytokine storm" and its secondary damage usually show higher susceptibility to secondary infections and sepsis-induced immunosuppression, in which regulatory T cells (Tregs) are evidenced to play an essential role. However, the potential role and mechanism of Tregs in sepsis-induced immunosuppression remains elusive. In this review, we elucidate the role of different functional subpopulations of Tregs during sepsis and then review the mechanism of sepsis-induced immunosuppression from the aspects of regulatory characteristics, epigenetic modification, and immunometabolism of Tregs. Thoroughly understanding how Tregs impact the immune system during sepsis may shed light on preclinical research and help improve the translational value of sepsis immunotherapy.
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Affiliation(s)
- Siyuan Huang
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Di Liu
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Lei Han
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Jin Deng
- Department of Emergency, the Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Zhen Wang
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Jianxin Jiang
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Ling Zeng
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
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26
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Deng W, He Q, Zhang W. Analysis of the mechanism of curcumin against osteoarthritis using metabolomics and transcriptomics. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:3313-3329. [PMID: 37938371 PMCID: PMC11074044 DOI: 10.1007/s00210-023-02785-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 10/12/2023] [Indexed: 11/09/2023]
Abstract
Curcumin, a polyphenolic compound derived from the turmeric plant (Curcuma longa), has been extensively studied for its anti-inflammatory and anti-proliferative properties. The safety and efficacy of curcumin have been thoroughly validated. Nevertheless, the underlying mechanism for treating osteoarthritis remains ambiguous. This study aims to reveal the potential mechanism of curcumin in treating osteoarthritis by using metabolomics and transcriptomics. Firstly, we validated the effect of curcumin on inflammatory factors in human articular chondrocytes. Secondly, we explored the cellular metabolism mechanism of curcumin against osteoarthritis using cell metabolomics. Thirdly, we assessed the differences in gene expression of human articular chondrocytes through transcriptomics. Lastly, to evaluate the essential targets and elucidate the potential mechanism underlying the therapeutic effects of curcumin in osteoarthritis, we conducted a screening of the proteins within the shared pathway of metabolomics and transcriptomics. Our results demonstrated that curcumin significantly decreased the levels of inflammatory markers, such as IL-β, IL-6, and TNF-α, in human articular chondrocytes. Cell metabolomics identified 106 differential metabolites, including beta-aminopropionitrile, 3-amino-2-piperidone, pyrrole-2-carboxaldehyde, and various other components. The transcriptomic analysis yielded 1050 differential mRNAs. Enrichment analysis showed that the differential metabolites and mRNAs were significantly enriched in seven pathways, including glycine, serine, and threonine metabolism; pentose and glucuronate interconversions; glycerolipid metabolism; histidine metabolism; mucin-type o-glycan biosynthesis; inositol phosphate metabolism; and cysteine and methionine metabolism. A total of 23 key targets were identified to be involved in these pathways. We speculate that curcumin may alleviate osteoarthritis by targeting key proteins involved in glycine, serine, and threonine metabolism; inhibiting pyruvate production; and modulating glycolysis.
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Affiliation(s)
- Wenxiang Deng
- College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China
| | - Qinghu He
- Department of Rehabilitation and Healthcare, Hunan University of Medicine, Huaihua, 418000, Hunan, China.
- College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China.
| | - Wenan Zhang
- College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China
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27
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López-Collazo E, del Fresno C. Endotoxin tolerance and trained immunity: breaking down immunological memory barriers. Front Immunol 2024; 15:1393283. [PMID: 38742111 PMCID: PMC11089161 DOI: 10.3389/fimmu.2024.1393283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/09/2024] [Indexed: 05/16/2024] Open
Abstract
For decades, innate immune cells were considered unsophisticated first responders, lacking the adaptive memory of their T and B cell counterparts. However, mounting evidence demonstrates the surprising complexity of innate immunity. Beyond quickly deploying specialized cells and initiating inflammation, two fascinating phenomena - endotoxin tolerance (ET) and trained immunity (TI) - have emerged. ET, characterized by reduced inflammatory response upon repeated exposure, protects against excessive inflammation. Conversely, TI leads to an enhanced response after initial priming, allowing the innate system to mount stronger defences against subsequent challenges. Although seemingly distinct, these phenomena may share underlying mechanisms and functional implications, blurring the lines between them. This review will delve into ET and TI, dissecting their similarities, differences, and the remaining questions that warrant further investigation.
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Affiliation(s)
- Eduardo López-Collazo
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumour Immunology Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
- Centro de Investigación Biomédica en Red (CIBER), Respiratory Diseases (CIBRES), Madrid, Spain
| | - Carlos del Fresno
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Immunomodulation Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
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28
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Wang Y, Qiu X, Liu J, Liu X, Pan J, Cai J, Liu X, Qu S. Cuproptosis-Related Biomarkers and Characterization of Immune Infiltration in Sepsis. J Inflamm Res 2024; 17:2459-2478. [PMID: 38681070 PMCID: PMC11048236 DOI: 10.2147/jir.s452980] [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: 12/02/2023] [Accepted: 04/09/2024] [Indexed: 05/01/2024] Open
Abstract
Introduction Sepsis is a worldwide epidemic, with high morbidity and mortality. Cuproptosis is a form of cell death that is associated with a wide range of diseases. This study aimed to explore genes associated with cuproptosis in sepsis, construct predictive models and screen for potential targets. Methods The LASSO algorithm and SVM-RFE model has been analysed the expression of cuproptosis-related genes in sepsis and immune infiltration characteristics and identified the marker genes under a diagnostic model. Gene-drug networks, mRNA-miRNA networks and PPI networks were constructed to screen for potential biological targets. The expression of marker genes was validated based on the GSE57065 dataset. Consensus clustering method was used to classify sepsis samples. Results We found 381 genes associated with the development of sepsis and discovered significantly differentially expressed cuproptosis-related genes of 16 cell types in sepsis and immune infiltration with CD8/CD4 T cells being lower. NFE2L2, NLRP3, SLC31A1, DLD, DLAT, PDHB, MTF1, CDKN2A and DLST were identified as marker genes by the LASSO algorithm and the SVM-RFE model. AUC > 0.9 was constructed for PDHB and MTF1 alone respectively. The validation group data for PDHB (P=0.00099) and MTF1 (P=7.2e-14) were statistically significant. Consistent clustering analysis confirmed two subtypes. The C1 subtype may be more relevant to cellular metabolism and the C2 subtype has some relevance to immune molecules.The results of animal experiments showed that the gene expression was consistent with the bioinformatics analysis. Discussion Our study systematically explored the relationship between sepsis and cuproptosis and constructed a diagnostic model. And, several cuproptosis-related genes may interfere with the progression of sepsis through immune cell infiltration.
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Affiliation(s)
- Yuanfeng Wang
- College of Public Health and Management, Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Xu Qiu
- College of Public Health and Management, Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jiao Liu
- College of Public Health and Management, Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Xuanyi Liu
- College of Public Health and Management, Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jialu Pan
- The First Clinical Medical College, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jiayi Cai
- The First Clinical Medical College, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Xiaodong Liu
- College of Public Health and Management, Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou, People’s Republic of China
- South Zhejiang Institute of Radiation Medicine and Nuclear Technology, Wenzhou, People’s Republic of China
| | - Shugen Qu
- College of Public Health and Management, Zhejiang Provincial Key Laboratory of Watershed Science and Health, Wenzhou Medical University, Wenzhou, People’s Republic of China
- South Zhejiang Institute of Radiation Medicine and Nuclear Technology, Wenzhou, People’s Republic of China
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29
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Gong T, Liu YT, Fan J. Exosomal mediators in sepsis and inflammatory organ injury: unraveling the role of exosomes in intercellular crosstalk and organ dysfunction. Mil Med Res 2024; 11:24. [PMID: 38644472 PMCID: PMC11034107 DOI: 10.1186/s40779-024-00527-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 04/02/2024] [Indexed: 04/23/2024] Open
Abstract
Sepsis, a severe systemic inflammatory response to infection, remains a leading cause of morbidity and mortality worldwide. Exosomes, as mediators of intercellular communication, play a pivotal role in the pathogenesis of sepsis through modulating immune responses, metabolic reprogramming, coagulopathy, and organ dysfunction. This review highlights the emerging significance of exosomes in these processes. Initially, it provides an in-depth insight into exosome biogenesis and characterization, laying the groundwork for understanding their diverse and intricate functions. Subsequently, it explores the regulatory roles of exosomes in various immune cells such as neutrophils, macrophages, dendritic cells, T cells, and B cells. This analysis elucidates how exosomes are pivotal in modulating immune responses, thus contributing to the complexity of sepsis pathophysiology. Additionally, this review delves into the role of exosomes in the regulation of metabolism and subsequent organ dysfunction in sepsis. It also establishes a connection between exosomes and the coagulation cascade, which affects endothelial integrity and promotes thrombogenesis in sepsis. Moreover, the review discusses the dual role of exosomes in the progression and resolution of sepsis, exploring their complex involvement in inflammation and healing processes. Furthermore, it underscores their potential as biomarkers and therapeutic targets. Understanding these mechanisms presents new opportunities for novel interventions to mitigate the severe outcomes of sepsis, emphasizing the therapeutic promise of exosome research in critical care settings.
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Affiliation(s)
- Ting Gong
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
- Department of Anesthesiology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangzhou, 518110, China.
| | - You-Tan Liu
- Department of Anesthesiology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangzhou, 518110, China
| | - Jie Fan
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
- Research and Development, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, 15240, USA.
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA.
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30
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Cajander S, Kox M, Scicluna BP, Weigand MA, Mora RA, Flohé SB, Martin-Loeches I, Lachmann G, Girardis M, Garcia-Salido A, Brunkhorst FM, Bauer M, Torres A, Cossarizza A, Monneret G, Cavaillon JM, Shankar-Hari M, Giamarellos-Bourboulis EJ, Winkler MS, Skirecki T, Osuchowski M, Rubio I, Bermejo-Martin JF, Schefold JC, Venet F. Profiling the dysregulated immune response in sepsis: overcoming challenges to achieve the goal of precision medicine. THE LANCET. RESPIRATORY MEDICINE 2024; 12:305-322. [PMID: 38142698 DOI: 10.1016/s2213-2600(23)00330-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 08/14/2023] [Accepted: 08/24/2023] [Indexed: 12/26/2023]
Abstract
Sepsis is characterised by a dysregulated host immune response to infection. Despite recognition of its significance, immune status monitoring is not implemented in clinical practice due in part to the current absence of direct therapeutic implications. Technological advances in immunological profiling could enhance our understanding of immune dysregulation and facilitate integration into clinical practice. In this Review, we provide an overview of the current state of immune profiling in sepsis, including its use, current challenges, and opportunities for progress. We highlight the important role of immunological biomarkers in facilitating predictive enrichment in current and future treatment scenarios. We propose that multiple immune and non-immune-related parameters, including clinical and microbiological data, be integrated into diagnostic and predictive combitypes, with the aid of machine learning and artificial intelligence techniques. These combitypes could form the basis of workable algorithms to guide clinical decisions that make precision medicine in sepsis a reality and improve patient outcomes.
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Affiliation(s)
- Sara Cajander
- Department of Infectious Diseases, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Matthijs Kox
- Department of Intensive Care Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Brendon P Scicluna
- Department of Applied Biomedical Science, Faculty of Health Sciences, Mater Dei hospital, University of Malta, Msida, Malta; Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Markus A Weigand
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Raquel Almansa Mora
- Department of Cell Biology, Genetics, Histology and Pharmacology, University of Valladolid, Valladolid, Spain
| | - Stefanie B Flohé
- Department of Trauma, Hand, and Reconstructive Surgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ignacio Martin-Loeches
- St James's Hospital, Dublin, Ireland; Hospital Clinic, Institut D'Investigacions Biomediques August Pi i Sunyer, Universidad de Barcelona, Barcelona, Spain
| | - Gunnar Lachmann
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Anesthesiology and Operative Intensive Care Medicine, Berlin, Germany
| | - Massimo Girardis
- Department of Intensive Care and Anesthesiology, University Hospital of Modena, Modena, Italy
| | - Alberto Garcia-Salido
- Hospital Infantil Universitario Niño Jesús, Pediatric Critical Care Unit, Madrid, Spain
| | - Frank M Brunkhorst
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
| | - Michael Bauer
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany; Integrated Research and Treatment Center, Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
| | - Antoni Torres
- Pulmonology Department. Hospital Clinic of Barcelona, University of Barcelona, Ciberes, IDIBAPS, ICREA, Barcelona, Spain
| | - Andrea Cossarizza
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Guillaume Monneret
- Immunology Laboratory, Hôpital E Herriot - Hospices Civils de Lyon, Lyon, France; Université Claude Bernard Lyon-1, Hôpital E Herriot, Lyon, France
| | | | - Manu Shankar-Hari
- Centre for Inflammation Research, Institute of Regeneration and Repair, The University of Edinburgh, Edinburgh, UK
| | | | - Martin Sebastian Winkler
- Department of Anesthesiology and Intensive Care, Universitätsmedizin Göttingen, Göttingen, Germany
| | - Tomasz Skirecki
- Department of Translational Immunology and Experimental Intensive Care, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Marcin Osuchowski
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Vienna, Austria
| | - Ignacio Rubio
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany; Integrated Research and Treatment Center, Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
| | - Jesus F Bermejo-Martin
- Instituto de Investigación Biomédica de Salamanca, Salamanca, Spain; School of Medicine, Universidad de Salamanca, Salamanca, Spain; Centro de Investigación Biomédica en Red en Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
| | - Joerg C Schefold
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Fabienne Venet
- Immunology Laboratory, Hôpital E Herriot - Hospices Civils de Lyon, Lyon, France; Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Ecole Normale Supeérieure de Lyon, Universiteé Claude Bernard-Lyon 1, Lyon, France.
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31
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Zhang T, Li X, Meng Z, Fang W, Lian G, Ma W, Tian L, Yang H, Wang C, Zhang J, Chen M. Obesity and septic patient outcomes: Shaping the puzzle through age and sex perspectives. Clin Nutr 2024; 43:1013-1020. [PMID: 38503020 DOI: 10.1016/j.clnu.2024.03.009] [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: 10/04/2023] [Revised: 02/28/2024] [Accepted: 03/12/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND & AIMS While obesity has been reported as a protective factor in septic patients, little is known about the potential modifying effects of age and sex. The objective of this study is to investigate age and sex-specific associations between obesity and the prognosis of septic patients. METHODS A retrospective analysis was conducted on a cohort of 15,464 septic patients, categorized by body mass index (BMI) into four groups: underweight (<18.5 kg/m2, n = 483), normal (18.5-24.9 kg/m2, n = 4344), overweight (25-29.9 kg/m2, n = 4949) and obese (≥30 kg/m2, n = 5688). Multivariable logistic regression and inverse probability weighting were employed to robustly confirm the protective effect of a higher BMI on 28-day mortality, with normal weight serving as the reference category. Subgroup analyses based on age (young: 18-39, middle-aged: 40-64 and elderly: ≥65) and sex were performed. RESULTS The findings demonstrate that high BMI independently confers a protective effect against 28-day mortality in septic patients. However, the relationship between BMI and 28-day mortality exhibits a non-linear trend, with a BMI of 34.5 kg/m2 displaying the lowest odds ratio. Notably, the survival benefits associated with a high BMI were not observed in the young group. Moreover, being underweight emerges as an independent risk factor for middle-aged and elderly female patients, while in males it is only a risk factor in the elderly group. Interestingly, being overweight and obese were identified as independent protective factors in middle-aged and elderly male patients, but not in females. CONCLUSIONS The effect of BMI on mortality in septic patients varies according to age and sex. Elderly individuals with sepsis may derive more prognostic benefits from obesity.
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Affiliation(s)
- Tuo Zhang
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; Department of Critical Care Medicine, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China
| | - Xunliang Li
- Department of Critical Care Medicine, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China; Department of Intensive Care Unit, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Zhaoli Meng
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; Department of Critical Care Medicine, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China
| | - Wei Fang
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; Department of Critical Care Medicine, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China
| | - Guodong Lian
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Shandong University, Jinan 250021, Shandong, China; Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, China
| | - Wenhao Ma
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Lei Tian
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Hongna Yang
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; Department of Critical Care Medicine, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China
| | - Chunting Wang
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; Department of Critical Care Medicine, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China
| | - Jicheng Zhang
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; Department of Critical Care Medicine, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China.
| | - Man Chen
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; Department of Critical Care Medicine, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China.
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Li N, Deng J, Zhang J, Yu F, Ye F, Hao L, Li S, Hu X. A New Strategy for Targeting UCP2 to Modulate Glycolytic Reprogramming as a Treatment for Sepsis A New Strategy for Targeting UCP2. Inflammation 2024:10.1007/s10753-024-01998-4. [PMID: 38429403 DOI: 10.1007/s10753-024-01998-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/09/2024] [Accepted: 02/20/2024] [Indexed: 03/03/2024]
Abstract
Sepsis is a severe and life-threatening disease caused by infection, characterized by a dysregulated immune response. Unfortunately, effective treatment strategies for sepsis are still lacking. The intricate interplay between metabolism and the immune system limits the treatment options for sepsis. During sepsis, there is a profound shift in cellular energy metabolism, which triggers a metabolic reprogramming of immune cells. This metabolic alteration impairs immune responses, giving rise to excessive inflammation and immune suppression. Recent research has demonstrated that UCP2 not only serves as a critical target in sepsis but also functions as a key metabolic switch involved in immune cell-mediated inflammatory responses. However, the regulatory mechanisms underlying this modulation are complex. This article focuses on UCP2 as a target and discusses metabolic reprogramming during sepsis and the complex regulatory mechanisms between different stages of inflammation. Our research indicates that overexpression of UCP2 reduces the Warburg effect, restores mitochondrial function, and improves the prognosis of sepsis. This discovery aims to provide a promising approach to address the significant challenges associated with metabolic dysfunction and immune paralysis.
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Affiliation(s)
- Na Li
- Department of Infectious Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiali Deng
- Department of Infectious Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Junli Zhang
- Jiangsu Provincial Hospital of Traditional Chinese Medicine, Nanjing, China
| | - Fei Yu
- Department of Infectious Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fanghang Ye
- Department of Infectious Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Liyuan Hao
- Department of Infectious Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shenghao Li
- Department of Infectious Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaoyu Hu
- Department of Infectious Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
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33
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Zhou Z, Wang H, Tan S, Zhang H, Zhu Y. The alterations of innate immunity and enhanced severity of infections in diabetes mellitus. Immunology 2024; 171:313-323. [PMID: 37849389 DOI: 10.1111/imm.13706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/04/2023] [Indexed: 10/19/2023] Open
Abstract
Diabetes mellitus (DM) is a metabolic inflammatory disease with a high incidence worldwide. Patients with DM are at a high risk for all types of infections. Type 1 DM is characterised with immune destruction of pancreatic β cells, while type 2 diabetes is characterised with insulin resistance and β cell dysfunction, both of which result in disorders of glucose and lipid metabolism. This metabolic disorder causes functional defects of immune cells, aberrant production of inflammatory cytokines, dysregulated immune responses, advanced pathophysiological injury of the body, and increased mortality in populations with DM upon infections. Starting with the change of natural immune system in patients with DM, this paper focused on the enhanced severity of infections in DM and the underlying innate immune alterations in preclinical and clinical studies, aiming to better understand the influence of DM on the susceptibility, pathophysiology, and clinical outcomes in infections.
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Affiliation(s)
- Zi Zhou
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Hunan, China
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Hunan, China
| | - Hao Wang
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Hunan, China
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Hunan, China
| | - Sipin Tan
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Hunan, China
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Hunan, China
| | - Huali Zhang
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Hunan, China
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Hunan, China
| | - Yaxi Zhu
- Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Hunan, China
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Hunan, China
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34
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Ma L, Han T, Zhan YA. Mechanism and role of mitophagy in the development of severe infection. Cell Death Discov 2024; 10:88. [PMID: 38374038 PMCID: PMC10876966 DOI: 10.1038/s41420-024-01844-4] [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: 10/23/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/21/2024] Open
Abstract
Mitochondria produce adenosine triphosphate and potentially contribute to proinflammatory responses and cell death. Mitophagy, as a conservative phenomenon, scavenges waste mitochondria and their components in the cell. Recent studies suggest that severe infections develop alongside mitochondrial dysfunction and mitophagy abnormalities. Restoring mitophagy protects against excessive inflammation and multiple organ failure in sepsis. Here, we review the normal mitophagy process, its interaction with invading microorganisms and the immune system, and summarize the mechanism of mitophagy dysfunction during severe infection. We highlight critical role of normal mitophagy in preventing severe infection.
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Affiliation(s)
- Lixiu Ma
- Department of Respiratory and Critical Care Medicine, the 1st Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Tianyu Han
- Jiangxi Institute of Respiratory Disease, the 1st Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Yi-An Zhan
- Department of Respiratory and Critical Care Medicine, the 1st Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, China.
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35
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Chung KP, Su JY, Wang YF, Budiarto BR, Yeh YC, Cheng JC, Keng LT, Chen YJ, Lu YT, Juan YH, Nakahira K, Ruan SY, Chien JY, Chang HT, Jerng JS, Huang YT, Chen SY, Yu CJ. Immunometabolic features of natural killer cells are associated with infection outcomes in critical illness. Front Immunol 2024; 15:1334882. [PMID: 38426112 PMCID: PMC10902670 DOI: 10.3389/fimmu.2024.1334882] [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: 11/08/2023] [Accepted: 01/10/2024] [Indexed: 03/02/2024] Open
Abstract
Immunosuppression increases the risk of nosocomial infection in patients with chronic critical illness. This exploratory study aimed to determine the immunometabolic signature associated with nosocomial infection during chronic critical illness. We prospectively recruited patients who were admitted to the respiratory care center and who had received mechanical ventilator support for more than 10 days in the intensive care unit. The study subjects were followed for the occurrence of nosocomial infection until 6 weeks after admission, hospital discharge, or death. The cytokine levels in the plasma samples were measured. Single-cell immunometabolic regulome profiling by mass cytometry, which analyzed 16 metabolic regulators in 21 immune subsets, was performed to identify immunometabolic features associated with the risk of nosocomial infection. During the study period, 37 patients were enrolled, and 16 patients (43.2%) developed nosocomial infection. Unsupervised immunologic clustering using multidimensional scaling and logistic regression analyses revealed that expression of nuclear respiratory factor 1 (NRF1) and carnitine palmitoyltransferase 1a (CPT1a), key regulators of mitochondrial biogenesis and fatty acid transport, respectively, in natural killer (NK) cells was significantly associated with nosocomial infection. Downregulated NRF1 and upregulated CPT1a were found in all subsets of NK cells from patients who developed a nosocomial infection. The risk of nosocomial infection is significantly correlated with the predictive score developed by selecting NK cell-specific features using an elastic net algorithm. Findings were further examined in an independent cohort of COVID-19-infected patients, and the results confirm that COVID-19-related mortality is significantly associated with mitochondria biogenesis and fatty acid oxidation pathways in NK cells. In conclusion, this study uncovers that NK cell-specific immunometabolic features are significantly associated with the occurrence and fatal outcomes of infection in critically ill population, and provides mechanistic insights into NK cell-specific immunity against microbial invasion in critical illness.
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Affiliation(s)
- Kuei-Pin Chung
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Laboratory Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Jia-Ying Su
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Bioinformatics Program, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan
| | - Yi-Fu Wang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Bugi Ratno Budiarto
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Taiwan International Graduate Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan
| | - Yu-Chang Yeh
- Department of Anesthesiology, National Taiwan University Hospital, Taipei, Taiwan
| | - Jui-Chen Cheng
- Department of Integrated Diagnostics & Therapeutics, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Ta Keng
- Department of Internal Medicine, National Taiwan University Hospital, Hsinchu, Taiwan
| | - Yi-Jung Chen
- Department of Laboratory Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ya-Ting Lu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yi-Hsiu Juan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Kiichi Nakahira
- Department of Pharmacology, Nara Medical University, Kashihara, Nara, Japan
| | - Sheng-Yuan Ruan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Jung-Yien Chien
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hou-Tai Chang
- Department of Critical Care Medicine, Far Eastern Memorial Hospital, New Taipei, Taiwan
- Department of Industrial Engineering and Management, Yuan Ze University, Taoyuan, Taiwan
| | - Jih-Shuin Jerng
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yen-Tsung Huang
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Shih-Yu Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chong-Jen Yu
- Department of Internal Medicine, National Taiwan University Hospital, Hsinchu, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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36
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Wang S, Jiang C, Cao K, Li R, Gao Z, Wang Y. HK2 in microglia and macrophages contribute to the development of neuropathic pain. Glia 2024; 72:396-410. [PMID: 37909251 DOI: 10.1002/glia.24482] [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: 06/22/2023] [Revised: 09/29/2023] [Accepted: 10/04/2023] [Indexed: 11/02/2023]
Abstract
Neuropathic pain is a complex pain condition accompanied by prominent neuroinflammation involving activation of both central and peripheral immune cells. Metabolic switch to glycolysis is an important feature of activated immune cells. Hexokinase 2 (HK2), a key glycolytic enzyme enriched in microglia, has recently been shown important in regulating microglial functions. Whether and how HK2 is involved in neuropathic pain-related neuroinflammation remains unknown. Using a HK2-tdTomato reporter line, we found that HK2 was prominently elevated in spinal microglia. Pharmacological inhibition of HK2 effectively alleviated nerve injury-induced acute mechanical pain. However, selective ablation of Hk2 in microglia reduced microgliosis in the spinal dorsal horn (SDH) with little analgesic effects. Further analyses showed that nerve injury also significantly induced HK2 expression in dorsal root ganglion (DRG) macrophages. Deletion of Hk2 in myeloid cells, including both DRG macrophages and spinal microglia, led to the alleviation of mechanical pain during the first week after injury, along with attenuated microgliosis in the ipsilateral SDH, macrophage proliferation in DRGs, and suppressed inflammatory responses in DRGs. These data suggest that HK2 plays an important role in regulating neuropathic pain-related immune cell responses at acute phase and that HK2 contributes to neuropathic pain onset primarily through peripheral monocytes and DRG macrophages rather than spinal microglia.
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Affiliation(s)
- Siyuan Wang
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chao Jiang
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Kelei Cao
- Department of Neurobiology and Department of Neurology of Second Affiliated Hospital, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou, China
- The MOE Frontier Research Center of Brain & Brain-machine Integration, Zhejiang University School of Brain Science and Brain Medicine, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
| | - Run Li
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhihua Gao
- Department of Neurobiology and Department of Neurology of Second Affiliated Hospital, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou, China
- The MOE Frontier Research Center of Brain & Brain-machine Integration, Zhejiang University School of Brain Science and Brain Medicine, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
| | - Yue Wang
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Wang Y, Chi Y, Zhu C, Zhang Y, Li K, Chen J, Jiang X, Chen K, Li S. A novel anoikis-related gene signature predicts prognosis in patients with sepsis and reveals immune infiltration. Sci Rep 2024; 14:2313. [PMID: 38281996 PMCID: PMC10822872 DOI: 10.1038/s41598-024-52742-9] [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: 11/16/2023] [Accepted: 01/23/2024] [Indexed: 01/30/2024] Open
Abstract
Sepsis is a common acute and severe medical condition with a high mortality rate. Anoikis, an emerging form of cell death, plays a significant role in various diseases. However, the role of anoikis in sepsis remains poorly understood. Based on the datasets from Gene Expression Omnibus and anoikis-related genes from GeneCards, the differentially expressed anoikis-related genes (DEARGs) were identified. Based on hub genes of DEARGs, a novel prognostic risk model was constructed, and the pattern of immune infiltration was investigated by CIBERSORT algorithm. And small molecule compounds targeting anoikis in sepsis were analyzed using Autodock. Of 23 DEARGs, CXCL8, CFLAR, FASLG and TP53 were significantly associated with the prognosis of sepsis (P < 0.05). Based on the prognostic risk model constructed with these four genes, high-risk population of septic patients had significant lower survival probability than low-risk population (HR = 3.30, P < 0.001). And the level of CFLAR was significantly correlated with the number of neutrophils in septic patients (r = 0.54, P < 0.001). Moreover, tozasertib had low binding energy with CXCL8, CFLAR, FASLG and TP53, and would be a potential compound for sepsis. Conclusively, our results identified a new prognostic model and potential therapeutic molecular for sepsis, providing new insights on mechanism and treatment of sepsis.
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Affiliation(s)
- Yonghua Wang
- Department of Emergency, The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, Sichuan, People's Republic of China
| | - Yanqi Chi
- School of Public Health, Chengdu Medical College, Chengdu, 610500, Sichuan, People's Republic of China
| | - Cheng Zhu
- Department of Emergency, The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, Sichuan, People's Republic of China
| | - Yuxuan Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, Sichuan, People's Republic of China
| | - Ke Li
- Department of Emergency, The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, Sichuan, People's Republic of China
| | - Jiajia Chen
- Department of Emergency, The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, Sichuan, People's Republic of China
| | - Xiying Jiang
- Department of Emergency, The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, Sichuan, People's Republic of China
| | - Kejie Chen
- School of Public Health, Chengdu Medical College, Chengdu, 610500, Sichuan, People's Republic of China.
| | - Shuping Li
- Department of Emergency, The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, Sichuan, People's Republic of China.
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Thind MK, Uhlig HH, Glogauer M, Palaniyar N, Bourdon C, Gwela A, Lancioni CL, Berkley JA, Bandsma RHJ, Farooqui A. A metabolic perspective of the neutrophil life cycle: new avenues in immunometabolism. Front Immunol 2024; 14:1334205. [PMID: 38259490 PMCID: PMC10800387 DOI: 10.3389/fimmu.2023.1334205] [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: 11/06/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024] Open
Abstract
Neutrophils are the most abundant innate immune cells. Multiple mechanisms allow them to engage a wide range of metabolic pathways for biosynthesis and bioenergetics for mediating biological processes such as development in the bone marrow and antimicrobial activity such as ROS production and NET formation, inflammation and tissue repair. We first discuss recent work on neutrophil development and functions and the metabolic processes to regulate granulopoiesis, neutrophil migration and trafficking as well as effector functions. We then discuss metabolic syndromes with impaired neutrophil functions that are influenced by genetic and environmental factors of nutrient availability and usage. Here, we particularly focus on the role of specific macronutrients, such as glucose, fatty acids, and protein, as well as micronutrients such as vitamin B3, in regulating neutrophil biology and how this regulation impacts host health. A special section of this review primarily discusses that the ways nutrient deficiencies could impact neutrophil biology and increase infection susceptibility. We emphasize biochemical approaches to explore neutrophil metabolism in relation to development and functions. Lastly, we discuss opportunities and challenges to neutrophil-centered therapeutic approaches in immune-driven diseases and highlight unanswered questions to guide future discoveries.
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Affiliation(s)
- Mehakpreet K Thind
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Holm H Uhlig
- Translational Gastroenterology Unit, Experimental Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
- Department of Dental Oncology and Maxillofacial Prosthetics, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Nades Palaniyar
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Celine Bourdon
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Agnes Gwela
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
| | - Christina L Lancioni
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - James A Berkley
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada
| | - Amber Farooqui
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Omega Laboratories Inc, Mississauga, ON, Canada
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39
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Fok ET, Moorlag SJCFM, Negishi Y, Groh LA, Dos Santos JC, Gräwe C, Monge VV, Craenmehr DDD, van Roosmalen M, da Cunha Jolvino DP, Migliorini LB, Neto AS, Severino P, Vermeulen M, Joosten LAB, Netea MG, Fanucchi S, Mhlanga MM. A chromatin-regulated biphasic circuit coordinates IL-1β-mediated inflammation. Nat Genet 2024; 56:85-99. [PMID: 38092881 DOI: 10.1038/s41588-023-01598-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 10/26/2023] [Indexed: 12/23/2023]
Abstract
Inflammation is characterized by a biphasic cycle consisting initially of a proinflammatory phase that is subsequently resolved by anti-inflammatory processes. Interleukin-1β (IL-1β) is a master regulator of proinflammation and is encoded within the same topologically associating domain (TAD) as IL-37, which is an anti-inflammatory cytokine that opposes the function of IL-1β. Within this TAD, we identified a long noncoding RNA called AMANZI, which negatively regulates IL-1β expression and trained immunity through the induction of IL37 transcription. We found that the activation of IL37 occurs through the formation of a dynamic long-range chromatin contact that leads to the temporal delay of anti-inflammatory responses. The common variant rs16944 present in AMANZI augments this regulatory circuit, predisposing individuals to enhanced proinflammation or immunosuppression. Our work illuminates a chromatin-mediated biphasic circuit coordinating expression of IL-1β and IL-37, thereby regulating two functionally opposed states of inflammation from within a single TAD.
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Affiliation(s)
- Ezio T Fok
- Department of Cell Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Radboud University, Nijmegen, the Netherlands
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands
- Lemba Therapeutics, Nijmegen, the Netherlands
| | - Simone J C F M Moorlag
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Yutaka Negishi
- Department of Cell Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Radboud University, Nijmegen, the Netherlands
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Laszlo A Groh
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Jéssica Cristina Dos Santos
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Cathrin Gräwe
- Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Oncode Institute, Radboud University, Nijmegen, the Netherlands
| | | | | | | | - David Pablo da Cunha Jolvino
- Albert Einstein Research and Education Institute, Hospital Israelita Albert Einstein, São Paulo, Brazil
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Victoria, Australia
| | - Letícia Busato Migliorini
- Albert Einstein Research and Education Institute, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Ary Serpa Neto
- Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Patricia Severino
- Albert Einstein Research and Education Institute, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Michiel Vermeulen
- Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Oncode Institute, Radboud University, Nijmegen, the Netherlands
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
- Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | | | - Musa M Mhlanga
- Department of Cell Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Radboud University, Nijmegen, the Netherlands.
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands.
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40
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Giamarellos-Bourboulis EJ, Aschenbrenner AC, Bauer M, Bock C, Calandra T, Gat-Viks I, Kyriazopoulou E, Lupse M, Monneret G, Pickkers P, Schultze JL, van der Poll T, van de Veerdonk FL, Vlaar APJ, Weis S, Wiersinga WJ, Netea MG. The pathophysiology of sepsis and precision-medicine-based immunotherapy. Nat Immunol 2024; 25:19-28. [PMID: 38168953 DOI: 10.1038/s41590-023-01660-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 09/21/2023] [Indexed: 01/05/2024]
Abstract
Sepsis remains a major cause of morbidity and mortality in both low- and high-income countries. Antibiotic therapy and supportive care have significantly improved survival following sepsis in the twentieth century, but further progress has been challenging. Immunotherapy trials for sepsis, mainly aimed at suppressing the immune response, from the 1990s and 2000s, have largely failed, in part owing to unresolved patient heterogeneity in the underlying immune disbalance. The past decade has brought the promise to break this blockade through technological developments based on omics-based technologies and systems medicine that can provide a much larger data space to describe in greater detail the immune endotypes in sepsis. Patient stratification opens new avenues towards precision medicine approaches that aim to apply immunotherapies to sepsis, on the basis of precise biomarkers and molecular mechanisms defining specific immune endotypes. This approach has the potential to lead to the establishment of immunotherapy as a successful pillar in the treatment of sepsis for future generations.
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Affiliation(s)
- Evangelos J Giamarellos-Bourboulis
- 4th Department of Internal Medicine, National and Kapodistrian University of Athens Medical School, Athens, Greece
- Hellenic Institute for the Study of Sepsis, Athens, Greece
| | - Anna C Aschenbrenner
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
| | - Michael Bauer
- Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Friedrich-Schiller University, Jena, Germany
| | - Christoph Bock
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Medical University of Vienna, Institute of Artificial Intelligence, Center for Medical Data Science, Vienna, Austria
| | - Thierry Calandra
- Service of Immunology and Allergy and Center of Human Immunology Lausanne, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Irit Gat-Viks
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Evdoxia Kyriazopoulou
- 4th Department of Internal Medicine, National and Kapodistrian University of Athens Medical School, Athens, Greece
- Hellenic Institute for the Study of Sepsis, Athens, Greece
| | - Mihaela Lupse
- Infectious Diseases Hospital, University of Medicine and Pharmacy 'Iuliu Hatieganu', Cluj-Napoca, Romania
| | - Guillaume Monneret
- Joint Research Unit HCL-bioMérieux, EA 7426 'Pathophysiology of Injury-Induced Immunosuppression' (Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, bioMérieux), Lyon, France
- Immunology Laboratory, Edouard Herriot Hospital - Hospices Civils de Lyon, Lyon, France
| | - Peter Pickkers
- Department of Intensive Care, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Joachim L Schultze
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
- PRECISE Platform for Single Cell Genomics and Epigenomics, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) and the University of Bonn, Bonn, Germany
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Tom van der Poll
- Division of Infectious Diseases, Amsterdam University Medical Centers (Amsterdam UMC), Center for Experimental and Molecular Medicine (CEMM), University of Amsterdam, Amsterdam, The Netherlands
| | - Frank L van de Veerdonk
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alexander P J Vlaar
- Department of Intensive Care and Laboratory of Experimental Intensive Care and Anesthesiology L.E.C.A. Amsterdam Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Sebastian Weis
- Institute for Infectious Disease and Infection Control, Jena University Hospital, Friedrich-Schiller University, Jena, Germany
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute-HKI, Jena, Germany
| | - W Joost Wiersinga
- Division of Infectious Diseases, Amsterdam University Medical Centers (Amsterdam UMC), Center for Experimental and Molecular Medicine (CEMM), University of Amsterdam, Amsterdam, The Netherlands
| | - Mihai G Netea
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany.
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.
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41
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Case NT, Westman J, Hallett MT, Plumb J, Farheen A, Maxson ME, MacAlpine J, Liston SD, Hube B, Robbins N, Whitesell L, Grinstein S, Cowen LE. Respiration supports intraphagosomal filamentation and escape of Candida albicans from macrophages. mBio 2023; 14:e0274523. [PMID: 38038475 PMCID: PMC10746240 DOI: 10.1128/mbio.02745-23] [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: 10/07/2023] [Accepted: 10/16/2023] [Indexed: 12/02/2023] Open
Abstract
IMPORTANCE Candida albicans is a leading human fungal pathogen that often causes life-threatening infections in immunocompromised individuals. The ability of C. albicans to transition between yeast and filamentous forms is key to its virulence, and this occurs in response to many host-relevant cues, including engulfment by host macrophages. While previous efforts identified C. albicans genes required for filamentation in other conditions, the genes important for this morphological transition upon internalization by macrophages remained largely enigmatic. Here, we employed a functional genomic approach to identify genes that enable C. albicans filamentation within macrophages and uncovered a role for the mitochondrial ribosome, respiration, and the SNF1 AMP-activated kinase complex. Additionally, we showed that glucose uptake and glycolysis by macrophages support C. albicans filamentation. This work provides insights into the metabolic dueling that occurs during the interaction of C. albicans with macrophages and identifies vulnerabilities in C. albicans that could serve as promising therapeutic targets.
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Affiliation(s)
- Nicola T. Case
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Johannes Westman
- Program in Cell Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | | | - Jonathan Plumb
- Program in Cell Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Aiman Farheen
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Michelle E. Maxson
- Program in Cell Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jessie MacAlpine
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Sean D. Liston
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Bernhard Hube
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoell Institute, Jena, Germany
- Institute of Microbiology, Friedrich Schiller University, Jena, Germany
| | - Nicole Robbins
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Luke Whitesell
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Sergio Grinstein
- Program in Cell Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
- Keenan Research Center of the Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Leah E. Cowen
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
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42
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Martínez-Banaclocha H, García-Palenciano C, Martínez-Alarcón L, Amores-Iniesta J, Martín-Sánchez F, Ercole GA, González-Lisorge A, Fernández-Pacheco J, Martínez-Gil P, Padilla-Rodríguez J, Baroja-Mazo A, Pelegrín P, Martínez-García JJ. Purinergic P2X7 receptor expression increases in leukocytes from intra-abdominal septic patients. Front Immunol 2023; 14:1297249. [PMID: 38094297 PMCID: PMC10716420 DOI: 10.3389/fimmu.2023.1297249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023] Open
Abstract
Inflammation is a tightly coordinated response of the host immune system to bacterial and viral infections, triggered by the production of inflammatory cytokines. Sepsis is defined as a systemic inflammatory response followed by immunosuppression of the host and organ dysfunction. This imbalance of the immune response increases the risk of mortality of patients with sepsis, making it a major problem for critical care units worldwide. The P2X7 receptor plays a crucial role in activating the immune system by inducing the activation of peripheral blood mononuclear cells. In this study, we analyzed a cohort of abdominal origin septic patients and found that the expression of the P2X7 receptor in the plasma membrane is elevated in the different subsets of lymphocytes. We observed a direct relationship between the percentage of P2X7-expressing lymphocytes and the early inflammatory response in sepsis. Additionally, in patients whose lymphocytes presented a higher percentage of P2X7 surface expression, the total lymphocytes populations proportionally decreased. Furthermore, we found a correlation between elevated soluble P2X7 receptors in plasma and inflammasome-dependent cytokine IL-18. In summary, our work demonstrates that P2X7 expression is highly induced in lymphocytes during sepsis, and this correlates with IL-18, along with other inflammatory mediators such as IL-6, IL-8, and procalcitonin.
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Affiliation(s)
- Helios Martínez-Banaclocha
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Carlos García-Palenciano
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Laura Martínez-Alarcón
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Joaquín Amores-Iniesta
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Fátima Martín-Sánchez
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Giovanni A. Ercole
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Ada González-Lisorge
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - José Fernández-Pacheco
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Piedad Martínez-Gil
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | | | - Alberto Baroja-Mazo
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Pablo Pelegrín
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - Juan José Martínez-García
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
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43
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Cortés M, Brischetto A, Martinez-Campanario MC, Ninfali C, Domínguez V, Fernández S, Celis R, Esteve-Codina A, Lozano JJ, Sidorova J, Garrabou G, Siegert AM, Enrich C, Pintado B, Morales-Ruiz M, Castro P, Cañete JD, Postigo A. Inflammatory macrophages reprogram to immunosuppression by reducing mitochondrial translation. Nat Commun 2023; 14:7471. [PMID: 37978290 PMCID: PMC10656499 DOI: 10.1038/s41467-023-42277-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/05/2023] [Indexed: 11/19/2023] Open
Abstract
Acute inflammation can either resolve through immunosuppression or persist, leading to chronic inflammation. These transitions are driven by distinct molecular and metabolic reprogramming of immune cells. The anti-diabetic drug Metformin inhibits acute and chronic inflammation through mechanisms still not fully understood. Here, we report that the anti-inflammatory and reactive-oxygen-species-inhibiting effects of Metformin depend on the expression of the plasticity factor ZEB1 in macrophages. Using mice lacking Zeb1 in their myeloid cells and human patient samples, we show that ZEB1 plays a dual role, being essential in both initiating and resolving inflammation by inducing macrophages to transition into an immunosuppressed state. ZEB1 mediates these diverging effects in inflammation and immunosuppression by modulating mitochondrial content through activation of autophagy and inhibition of mitochondrial protein translation. During the transition from inflammation to immunosuppression, Metformin mimics the metabolic reprogramming of myeloid cells induced by ZEB1. Mechanistically, in immunosuppression, ZEB1 inhibits amino acid uptake, leading to downregulation of mTORC1 signalling and a decrease in mitochondrial translation in macrophages. These results identify ZEB1 as a driver of myeloid cell metabolic plasticity, suggesting that targeting its expression and function could serve as a strategy to modulate dysregulated inflammation and immunosuppression.
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Affiliation(s)
- Marlies Cortés
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain.
| | - Agnese Brischetto
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain
| | - M C Martinez-Campanario
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain
| | - Chiara Ninfali
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain
| | - Verónica Domínguez
- National Center of Biotechnology (CSIC-CNB) and Center for Molecular Biology Severo Ochoa (CSIC/UAM-CBMSO) Transgenesis Facility, Higher Research Council (CSIC) and Autonomous University of Madrid (UAM), Cantoblanco, 28049, Madrid, Spain
| | - Sara Fernández
- Medical Intensive Care Unit and Department of Internal Medicine, Hospital Clínic of Barcelona, Group of Muscle Research and Mitochondrial Function, IDIBAPS, and CIBERER, 08036, Barcelona, Spain
| | - Raquel Celis
- Arthritis Unit, Dept. of Rheumathology, Hospital Clínic and IDIBAPS, 08036, Barcelona, Spain
| | | | - Juan J Lozano
- Biomedical Research Networking Centers in Digestive and Hepatic Diseases (CIBERehd), Carlos III Health Institute, 08036, Barcelona, Spain
| | - Julia Sidorova
- Biomedical Research Networking Centers in Digestive and Hepatic Diseases (CIBERehd), Carlos III Health Institute, 08036, Barcelona, Spain
| | - Gloria Garrabou
- Medical Intensive Care Unit and Department of Internal Medicine, Hospital Clínic of Barcelona, Group of Muscle Research and Mitochondrial Function, IDIBAPS, and CIBERER, 08036, Barcelona, Spain
| | - Anna-Maria Siegert
- MRC Metabolic Diseases Unit, University of Cambridge Metabolic Research Laboratories, Wellcome Trust-MRC Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge, CB1 0QQ, UK
| | - Carlos Enrich
- Department of Biomedicine, University of Barcelona School of Medicine and Health Sciences, 08036, Barcelona, Spain
| | - Belén Pintado
- National Center of Biotechnology (CSIC-CNB) and Center for Molecular Biology Severo Ochoa (CSIC/UAM-CBMSO) Transgenesis Facility, Higher Research Council (CSIC) and Autonomous University of Madrid (UAM), Cantoblanco, 28049, Madrid, Spain
| | - Manuel Morales-Ruiz
- Biomedical Research Networking Centers in Digestive and Hepatic Diseases (CIBERehd), Carlos III Health Institute, 08036, Barcelona, Spain
- Department of Biomedicine, University of Barcelona School of Medicine and Health Sciences, 08036, Barcelona, Spain
- Department of Biochemistry and Molecular Genetics, Hospital Clínic of Barcelona and IDIBAPS, 08036, Barcelona, Spain
| | - Pedro Castro
- Medical Intensive Care Unit and Department of Internal Medicine, Hospital Clínic of Barcelona, Group of Muscle Research and Mitochondrial Function, IDIBAPS, and CIBERER, 08036, Barcelona, Spain
| | - Juan D Cañete
- Arthritis Unit, Dept. of Rheumathology, Hospital Clínic and IDIBAPS, 08036, Barcelona, Spain
| | - Antonio Postigo
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain.
- Biomedical Research Networking Centers in Digestive and Hepatic Diseases (CIBERehd), Carlos III Health Institute, 08036, Barcelona, Spain.
- Molecular Targets Program, Division of Oncology, Department of Medicine, J.G. Brown Cancer Center, Louisville, KY, 40202, USA.
- ICREA, 08010, Barcelona, Spain.
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44
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Phiri TN, Mutasa K, Rukobo S, Govha M, Mushayanembwa P, Mwakamui S, Haider T, Zyambo K, Dumbura C, Tome J, Runodamoto T, Chidamba L, Majo FD, Ngosa D, Chandwe K, Kapoma C, Mwapenya B, Mufukari W, Sturgeon JP, Robertson RC, Smuk M, Ntozini R, Nathoo K, Amadi B, Kelly P, Bwakura-Dangarembizi M, Prendergast AJ, Bourke CD. Severe acute malnutrition promotes bacterial binding over proinflammatory cytokine secretion by circulating innate immune cells. SCIENCE ADVANCES 2023; 9:eadh2284. [PMID: 37910623 PMCID: PMC10619937 DOI: 10.1126/sciadv.adh2284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 09/29/2023] [Indexed: 11/03/2023]
Abstract
Children with severe acute malnutrition (SAM) have high infectious mortality and morbidity, implicating defects in their immune defenses. We hypothesized that circulating innate immune cells from children (0 to 59 months) hospitalized with SAM in Zambia and Zimbabwe (n = 141) have distinct capacity to respond to bacteria relative to adequately nourished healthy controls (n = 92). SAM inpatients had higher neutrophil and monocyte Escherichia coli binding capacity but lower monocyte activation and proinflammatory mediator secretion in response to lipopolysaccharide or heat-killed Salmonella typhimurium than controls. Among SAM cases, wasting severity was negatively associated with cytokine secretion, children with HIV had lower monocyte activation, and the youngest children released the least myeloperoxidase upon stimulation. Inpatient bacterial binding capacity and monocyte activation were associated with higher odds of persistent SAM at discharge, a risk factor for subsequent mortality. Thus, SAM shifts innate immune cell function, favoring bacterial containment over proinflammatory activation, which may contribute to health deficits after discharge.
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Affiliation(s)
- Tracy N. Phiri
- Tropical Gastroenterology and Nutrition group (TROPGAN), University of Zambia School of Medicine, Lusaka, Zambia
| | - Kuda Mutasa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Sandra Rukobo
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Margaret Govha
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | | | - Simutanyi Mwakamui
- Tropical Gastroenterology and Nutrition group (TROPGAN), University of Zambia School of Medicine, Lusaka, Zambia
| | - Tafhima Haider
- Blizard Institute, Queen Mary University of London, London, UK
| | - Kanekwa Zyambo
- Tropical Gastroenterology and Nutrition group (TROPGAN), University of Zambia School of Medicine, Lusaka, Zambia
| | - Cherlynn Dumbura
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Joice Tome
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | | | - Leah Chidamba
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Florence D. Majo
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Deophine Ngosa
- Tropical Gastroenterology and Nutrition group (TROPGAN), University of Zambia School of Medicine, Lusaka, Zambia
| | - Kanta Chandwe
- Tropical Gastroenterology and Nutrition group (TROPGAN), University of Zambia School of Medicine, Lusaka, Zambia
| | - Chanda Kapoma
- Tropical Gastroenterology and Nutrition group (TROPGAN), University of Zambia School of Medicine, Lusaka, Zambia
| | - Benjamin Mwapenya
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Wadzanai Mufukari
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Jonathan P. Sturgeon
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
- Blizard Institute, Queen Mary University of London, London, UK
| | | | - Melanie Smuk
- Blizard Institute, Queen Mary University of London, London, UK
| | - Robert Ntozini
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Kusum Nathoo
- Department of Paediatrics and Child Health, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
| | - Beatrice Amadi
- Tropical Gastroenterology and Nutrition group (TROPGAN), University of Zambia School of Medicine, Lusaka, Zambia
| | - Paul Kelly
- Tropical Gastroenterology and Nutrition group (TROPGAN), University of Zambia School of Medicine, Lusaka, Zambia
- Blizard Institute, Queen Mary University of London, London, UK
| | - Mutsa Bwakura-Dangarembizi
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
- Department of Paediatrics and Child Health, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
| | - Andrew J. Prendergast
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
- Blizard Institute, Queen Mary University of London, London, UK
| | - Claire D. Bourke
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
- Blizard Institute, Queen Mary University of London, London, UK
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45
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Figueirêdo Leite GG, Colo Brunialti MK, Peçanha-Pietrobom PM, Abrão Ferreira PR, Ota-Arakaki JS, Cunha-Neto E, Ferreira BL, Ronsein GE, Tashima AK, Salomão R. Understanding COVID-19 progression with longitudinal peripheral blood mononuclear cell proteomics: Changes in the cellular proteome over time. iScience 2023; 26:107824. [PMID: 37736053 PMCID: PMC10509719 DOI: 10.1016/j.isci.2023.107824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/16/2023] [Accepted: 08/31/2023] [Indexed: 09/23/2023] Open
Abstract
The clinical presentation of COVID-19 is highly variable, and understanding the underlying biological processes is crucial. This study utilized a proteomic analysis to investigate dysregulated processes in the peripheral blood mononuclear cells of patients with COVID-19 compared to healthy volunteers. Samples were collected at different stages of the disease, including hospital admission, after 7 days of hospitalization, and 30 days after discharge. Metabolic pathway alterations and increased abundance of neutrophil-related proteins were observed in patients. Patients progressing to critical illness had significantly low-abundance proteins in the pentose phosphate and glycolysis pathways compared with those presenting clinical recovery. Important biological processes, such as fatty acid concentration and glucose metabolism disorder, remained altered even after 30 days of hospital discharge. Temporal proteomic changes revealed distinct pathways in critically ill and non-critically ill patients. Our study emphasizes the significance of longitudinal cellular proteomic studies in identifying disease progression-related pathways and persistent protein changes post-hospitalization.
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Affiliation(s)
| | - Milena Karina Colo Brunialti
- Division of Infectious Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Paula M. Peçanha-Pietrobom
- Division of Infectious Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Paulo R. Abrão Ferreira
- Division of Infectious Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Jaquelina Sonoe Ota-Arakaki
- Division of Respiratory Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Edecio Cunha-Neto
- Laboratory of Immunology, Heart Institute, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Bianca Lima Ferreira
- Division of Infectious Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Graziella E. Ronsein
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP, Brazil
| | - Alexandre Keiji Tashima
- Department of Biochemistry, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Reinaldo Salomão
- Division of Infectious Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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46
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Sun Z, Song Y, Li J, Li Y, Yu Y, Wang X. Potential biomarker for diagnosis and therapy of sepsis: Lactylation. Immun Inflamm Dis 2023; 11:e1042. [PMID: 37904710 PMCID: PMC10571012 DOI: 10.1002/iid3.1042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/17/2023] [Accepted: 09/21/2023] [Indexed: 11/01/2023] Open
Abstract
INTRODUCTION As a disease that has plagued human health for decades, sepsis has so far had no specific diagnostic or therapeutic indicators. The discovery of lactylation modifications not only uncovered the deep-rooted causes of changing between lactate level and pathophysiology and immunology of sepsis, but also reaffirmed the inevitable link between metabolic reprogramming and epigenetic reprogramming in sepsis. Lactylation modification became a potential marker for diagnosis and guiding the treatment of sepsis. AIM In this paper, we will summarize the discovery and regulation of lactylation modifications, discuss the study of lactylation modifications in sepsis, and evaluate their possibility and potential as diagnostic and therapeutic indicators of sepsis. CONCLUSION Lactylation modification is directly regulated by glycolysis and lactate, and inhibition of glycolytic pathway-related enzymes can regulate the level of lactylation modification, and more importantly, lactylation modification can act on these enzymes to regulate their functions and feedback regulate the level of glycolysis, this finding provides more ideas for clinical treatment of sepsis. We use "epigenetic modification", "glycolysis", "lactate", "lactylaiton" and "sepsis" as keywords and search the relevant literature through Pubmed and Web of science up to 2023.
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Affiliation(s)
- ZeXian Sun
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
- Anaesthesiology, The Graduate SchoolTianjin Medical UniversityTianjinChina
| | - Yu Song
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
- Anaesthesiology, The Graduate SchoolTianjin Medical UniversityTianjinChina
| | - Jie Li
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
- Anaesthesiology, The Graduate SchoolTianjin Medical UniversityTianjinChina
| | - Yize Li
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
| | - YongHao Yu
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
| | - Xin Wang
- Department of AnesthesiologyTianjin Medical University General HospitalTianjinChina
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Zhang B, Xiao Q, Ma Q, Han L. Clinical treatment for persistent inflammation, immunosuppression and catabolism syndrome in patients with severe acute pancreatitis (Review). Exp Ther Med 2023; 26:495. [PMID: 37753297 PMCID: PMC10519614 DOI: 10.3892/etm.2023.12194] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 07/28/2023] [Indexed: 09/28/2023] Open
Abstract
Severe acute pancreatitis (SAP) is a severe disease with a high prevalence and a 3-15% mortality worldwide, and premature activation of zymogen for any reason is the initial factor for the onset of SAP. Gallstone disease and heavy alcohol consumption are the two most common etiologies of SAP. Persistent inflammation, immunosuppression and catabolism syndrome (PICS) is a life-threatening illness, and there are no effective treatments. The relapse state of PICS mainly leads to high mortality due to septic shock or severe trauma, both of which are dangerous and challenging conditions for clinicians. Thus, it is important for medical staff to identify patients at high risk of PICS and to master the prevention and treatment of PICS in patients with SAP. The present review aims to increase the understanding of the pathogenesis of PICS, produce evidence for PICS diagnosis and highlight clinical treatment for PICS in patients with SAP. With this information, clinical workers could implement standardized and integrated measures at an early stage of SAP to stop its progression to PICS.
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Affiliation(s)
- Bo Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Qigui Xiao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Qingyong Ma
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Liang Han
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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de Jong R, Tenbrock K, Ohl K. New Insights in Immunometabolism in Neonatal Monocytes and Macrophages in Health and Disease. Int J Mol Sci 2023; 24:14173. [PMID: 37762476 PMCID: PMC10531550 DOI: 10.3390/ijms241814173] [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: 06/14/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
It is well established that the neonatal immune system is different from the adult immune system. A major task of the neonatal immune system is to bridge the achievement of tolerance towards harmless antigens and commensal bacteria while providing protection against pathogens. This is highly important because neonates are immunologically challenged directly after birth by a rigorous change from a semi-allogeneic sterile environment into a world rich with microbes. A so called disease tolerogenic state is typical for neonates and is anticipated to prevent immunopathological damage potentially at the cost of uncontrolled pathogen proliferation. As a consequence, neonates are more susceptible than adults to life-threatening infections. At the basis of a well-functioning immune response, both for adults and neonates, innate immune cells such as monocytes and monocyte-derived macrophages play an essential role. A well-responsive monocyte will alter its cellular metabolism to subsequently induce certain immune effector function, a process which is called immunometabolism. Immunometabolism has received extensive attention in the last decade; however, it has not been broadly studied in neonates. This review focuses on carbohydrate metabolism in monocytes and macrophages in neonates. We will exhibit pathways involving glycolysis, the tricarboxylic acid (TCA) cycle and oxidative phosphorylation and their role in shaping neonates' immune systems to a favorable tolerogenic state. More insight into these pathways will elucidate potential treatments targets in life-threatening conditions including neonatal sepsis or expose potential targets which can be used to induce tolerance in conditions where tolerance is harmfully impaired such as in autoimmune diseases.
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Affiliation(s)
| | - Klaus Tenbrock
- Department of Pediatrics, RWTH Aachen University, 52074 Aachen, Germany; (R.d.J.); (K.O.)
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Ferrazzo F, Leto S, Malara N. The 1926 novel, "One, no one, one hundred thousand", metaphorizes the potential danger when the immune system is exposed to a repetitive antigen stimulation. Front Immunol 2023; 14:1254853. [PMID: 37771583 PMCID: PMC10524273 DOI: 10.3389/fimmu.2023.1254853] [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: 07/07/2023] [Accepted: 08/11/2023] [Indexed: 09/30/2023] Open
Abstract
In the worldwide scenario of infection prevention and control, the vaccine strategies are destined to increase rapidly. The availability of numerous vaccination options allows you to plan individually on how to boost your immune system. The immune system is a highly plastic cognitive dynamic network and performs its function by recognition of the uniqueness of the organism defined as self. The identification and attack of non-self antigens contribute to improving the strategies of self/non-self discrimination. However, repetitive antigen stimulation of the immune system may lead to several outcomes reassumed in three principal risks: (i) loss of the unique self codification (one), (ii) loss of own identifying (no one), and (iii) the increase of idiotype/anti-idiotype entities (one hundred thousand). Controlled production of idiotype/anti-idiotype antibodies protects against autoimmune diseases and immunodeficiency. The title of the famous novel by Nobel Prize for Literature winner Luigi Pirandello, "One, no one, one hundred thousand", recaps the three risks and the protagonist's journey exploring the complexities of personal identity, and warns to preserve the uniqueness of the organism. Taking inspiration from this metaphor, the authors propose to monitor antibody idiotype response for personalizing vaccine plans with the aim of preserving the uniqueness of the immune system and assuring safe protection.
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Affiliation(s)
| | | | - Natalia Malara
- Department of Health Sciences, University Magna Graecia, Catanzaro, Italy
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Fu X, Liu Z, Wang Y. Advances in the Study of Immunosuppressive Mechanisms in Sepsis. J Inflamm Res 2023; 16:3967-3981. [PMID: 37706064 PMCID: PMC10497210 DOI: 10.2147/jir.s426007] [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: 06/15/2023] [Accepted: 08/29/2023] [Indexed: 09/15/2023] Open
Abstract
Sepsis is a life-threatening disease caused by a systemic infection that triggers a dysregulated immune response. Sepsis is an important cause of death in intensive care units (ICUs), poses a major threat to human health, and is a common cause of death in ICUs worldwide. The pathogenesis of sepsis is intricate and involves a complex interplay of pro- and anti-inflammatory mechanisms that can lead to excessive inflammation, immunosuppression, and potentially long-term immune disorders. Recent evidence highlights the importance of immunosuppression in sepsis. Immunosuppression is recognized as a predisposing factor for increased susceptibility to secondary infections and mortality in patients. Immunosuppression due to sepsis increases a patient's chance of re-infection and increases organ load. In addition, antibiotics, fluid resuscitation, and organ support therapy have limited impact on the prognosis of septic patients. Therapeutic approaches by suppressing excessive inflammation have not achieved the desired results in clinical trials. Research into immunosuppression has brought new hope for the treatment of sepsis, and a number of therapeutic approaches have demonstrated the potential of immunostimulatory therapies. In this article, we will focus on the mechanisms of immunosuppression and markers of immune monitoring in sepsis and describe various targets for immunostimulatory therapy in sepsis.
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Affiliation(s)
- Xuzhe Fu
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Zhi Liu
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Yu Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
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