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Luo W, Xu C, Li L, Ji Y, Wang Y, Li Y, Ye Y. Perfluoropentane-based oxygen-loaded nanodroplets reduce microglial activation through metabolic reprogramming. Neural Regen Res 2025; 20:1178-1191. [PMID: 38989955 PMCID: PMC11438333 DOI: 10.4103/nrr.nrr-d-23-01299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 02/05/2024] [Indexed: 07/12/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202504000-00032/figure1/v/2024-07-06T104127Z/r/image-tiff Microglia, the primary immune cells within the brain, have gained recognition as a promising therapeutic target for managing neurodegenerative diseases within the central nervous system, including Parkinson's disease. Nanoscale perfluorocarbon droplets have been reported to not only possess a high oxygen-carrying capacity, but also exhibit remarkable anti-inflammatory properties. However, the role of perfluoropentane in microglia-mediated central inflammatory reactions remains poorly understood. In this study, we developed perfluoropentane-based oxygen-loaded nanodroplets (PFP-OLNDs) and found that pretreatment with these droplets suppressed the lipopolysaccharide-induced activation of M1-type microglia in vitro and in vivo, and suppressed microglial activation in a mouse model of Parkinson's disease. Microglial suppression led to a reduction in the inflammatory response, oxidative stress, and cell migration capacity in vitro. Consequently, the neurotoxic effects were mitigated, which alleviated neuronal degeneration. Additionally, ultrahigh-performance liquid chromatography-tandem mass spectrometry showed that the anti-inflammatory effects of PFP-OLNDs mainly resulted from the modulation of microglial metabolic reprogramming. We further showed that PFP-OLNDs regulated microglial metabolic reprogramming through the AKT-mTOR-HIF-1α pathway. Collectively, our findings suggest that the novel PFP-OLNDs constructed in this study alleviate microglia-mediated central inflammatory reactions through metabolic reprogramming.
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Affiliation(s)
- Wanxian Luo
- Department of Medicine Ultrasonics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Chuanhui Xu
- Institute of Neuroscience, Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Linxi Li
- Institute of Neuroscience, Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Yunxiang Ji
- Institute of Neuroscience, Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Yezhong Wang
- Institute of Neuroscience, Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Yingjia Li
- Department of Medicine Ultrasonics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Yongyi Ye
- Institute of Neuroscience, Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
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Pabon A, Bhupana JN, Wong CO. Crosstalk between degradation and bioenergetics: how autophagy and endolysosomal processes regulate energy production. Neural Regen Res 2025; 20:671-681. [PMID: 38886933 PMCID: PMC11433889 DOI: 10.4103/nrr.nrr-d-23-02095] [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: 12/27/2023] [Revised: 03/08/2024] [Accepted: 03/30/2024] [Indexed: 06/20/2024] Open
Abstract
Cells undergo metabolic reprogramming to adapt to changes in nutrient availability, cellular activity, and transitions in cell states. The balance between glycolysis and mitochondrial respiration is crucial for energy production, and metabolic reprogramming stipulates a shift in such balance to optimize both bioenergetic efficiency and anabolic requirements. Failure in switching bioenergetic dependence can lead to maladaptation and pathogenesis. While cellular degradation is known to recycle precursor molecules for anabolism, its potential role in regulating energy production remains less explored. The bioenergetic switch between glycolysis and mitochondrial respiration involves transcription factors and organelle homeostasis, which are both regulated by the cellular degradation pathways. A growing body of studies has demonstrated that both stem cells and differentiated cells exhibit bioenergetic switch upon perturbations of autophagic activity or endolysosomal processes. Here, we highlighted the current understanding of the interplay between degradation processes, specifically autophagy and endolysosomes, transcription factors, endolysosomal signaling, and mitochondrial homeostasis in shaping cellular bioenergetics. This review aims to summarize the relationship between degradation processes and bioenergetics, providing a foundation for future research to unveil deeper mechanistic insights into bioenergetic regulation.
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Affiliation(s)
- Angelid Pabon
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | | | - Ching-On Wong
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
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3
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Xiao Z, Guo Y, Li J, Jiang X, Wu F, Wang Y, Zhang Y, Zhou W. Harnessing traditional Chinese medicine polysaccharides for combatting COVID-19. Carbohydr Polym 2024; 346:122605. [PMID: 39245521 DOI: 10.1016/j.carbpol.2024.122605] [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: 06/03/2024] [Revised: 07/26/2024] [Accepted: 08/09/2024] [Indexed: 09/10/2024]
Abstract
With the global spread of COVID-19 posing ongoing challenges to public health systems, there is an ever-increasing demand for effective therapeutics that can mitigate both viral transmission and disease severity. This review surveys the landscape of polysaccharides derived from traditional Chinese medicine, acclaimed for their medicinal properties and potential to contribute to the COVID-19 response. We specifically focus on the capability of these polysaccharides to thwart SARS-CoV-2 entry into host cells, a pivotal step in the viral life cycle that informs transmission and pathogenicity. Moreover, we delve into the concept of trained immunity, an innate immune system feature that polysaccharides may potentiate, offering an avenue for a more moderated yet efficacious immune response against various pathogens, including SARS-CoV-2. Our comprehensive overview aims to bolster understanding of the possible integration of these substances within anti-COVID-19 measures, emphasizing the need for rigorous investigation into their potential applications and underlying mechanisms. The insights provided here strongly support ongoing investigations into the adjunctive use of polysaccharides in the management of COVID-19, with the anticipation that such findings could lead to a deeper appreciation and clearer elucidation of the antiviral potentials inherent in complex Chinese herbal remedies.
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Affiliation(s)
- Zhiyong Xiao
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of National Security Specially Needed Drug, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China.
| | - Yizhen Guo
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of National Security Specially Needed Drug, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Jingxuan Li
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of National Security Specially Needed Drug, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Xuyong Jiang
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of National Security Specially Needed Drug, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Fushan Wu
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of National Security Specially Needed Drug, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Ying Wang
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of National Security Specially Needed Drug, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China
| | - Yongxiang Zhang
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of National Security Specially Needed Drug, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China.
| | - Wenxia Zhou
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China; State Key Laboratory of National Security Specially Needed Drug, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, China.
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Migliaccio G, Morikka J, Del Giudice G, Vaani M, Möbus L, Serra A, Federico A, Greco D. Methylation and transcriptomic profiling reveals short term and long term regulatory responses in polarized macrophages. Comput Struct Biotechnol J 2024; 25:143-152. [PMID: 39257962 PMCID: PMC11385784 DOI: 10.1016/j.csbj.2024.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 08/15/2024] [Accepted: 08/15/2024] [Indexed: 09/12/2024] Open
Abstract
Macrophage plasticity allows the adoption of distinct functional states in response to environmental cues. While unique transcriptomic profiles define these states, focusing solely on transcription neglects potential long-term effects. The investigation of epigenetic changes can be used to understand how temporary stimuli can result in lasting effects. Epigenetic alterations play an important role in the pathophysiology of macrophages, including their trained innate immunity, enabling faster and more efficient inflammatory responses upon subsequent encounters to the same pathogen or insult. In this study, we used a multi-omics approach to elucidate the interplay between gene expression and DNA-methylation, to explore the potential long-term effects of diverse polarizing environments on macrophage activity. We identified a common core set of genes that are differentially methylated regardless of exposure type, indicating a potential common fundamental mechanism for adaptation to various stimuli. Functional analysis revealed that processes requiring rapid responses displayed transcriptomic regulation, whereas functions critical for long-term adaptations exhibited co-regulation at both transcriptomic and epigenetic levels. Our study uncovers a novel set of genes linked to the long-term effects of macrophage polarization. This discovery underscores the potential of epigenetics in elucidating how macrophages establish long-term memory and influence health outcomes.
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Affiliation(s)
- Giorgia Migliaccio
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jack Morikka
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Tampere Institute for Advanced Study, Tampere University, Tampere, Finland
| | - Giusy Del Giudice
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Maaret Vaani
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Lena Möbus
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Angela Serra
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Tampere Institute for Advanced Study, Tampere University, Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Antonio Federico
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Tampere Institute for Advanced Study, Tampere University, Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Dario Greco
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
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Almeida P, Fernandes Â, Alves I, Pinho SS. "Glycans in Trained Immunity: Educators of innate immune memory in homeostasis and disease". Carbohydr Res 2024; 544:109245. [PMID: 39208605 DOI: 10.1016/j.carres.2024.109245] [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: 06/21/2024] [Revised: 08/12/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024]
Abstract
Trained Immunity is defined as a biological process normally induced by exogenous or endogenous insults that triggers epigenetic and metabolic reprogramming events associated with long-term adaptation of innate immune cells. This trained phenotype confers enhanced responsiveness to subsequent triggers, resulting in an innate immune "memory" effect. Trained Immunity, in the past decade, has revealed important benefits for host defense and homeostasis, but can also induce potentially harmful outcomes associated with chronic inflammatory disorders or autoimmune diseases. Interestingly, evidence suggest that the "trainers" prompting trained immunity are frequently glycans structures. In fact, the exposure of different types of glycans at the surface of pathogens is a key driver of the training phenotype, leading to the reprogramming of innate immune cells through the recognition of those glycan-triggers by a variety of glycan-binding proteins (GBPs) expressed by the immune cells. β-glucan or mannose-enriched structures in Candida albicans are some of the examples that highlight the potential of glycans in trained immunity, both in homeostasis and in disease. In this review, we will discuss the relevance of glycans exposed by pathogens in establishing key immunological hubs with glycan-recognizing receptors expressed in immune cells, highlighting how this glycan-GBP network can impact trained immunity. Finally, we discuss the power of glycans and GBPs as potential targets in trained immunity, envisioning potential therapeutic applications.
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Affiliation(s)
- Pedro Almeida
- I3S - Institute for Research and Innovation in Health, University of Porto, 4200-135, Porto, Portugal.
| | - Ângela Fernandes
- I3S - Institute for Research and Innovation in Health, University of Porto, 4200-135, Porto, Portugal.
| | - Inês Alves
- I3S - Institute for Research and Innovation in Health, University of Porto, 4200-135, Porto, Portugal.
| | - Salomé S Pinho
- I3S - Institute for Research and Innovation in Health, University of Porto, 4200-135, Porto, Portugal; Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal; ICBAS - School of Medicine and Biomedical Sciences, University of Porto, 4050-313, Porto, Portugal.
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Yang X, Chen YH, Liu L, Gu Z, You Y, Hao JR, Sun N, Gao C. Regulation of glycolysis-derived L-lactate production in astrocytes rescues the memory deficits and Aβ burden in early Alzheimer's disease models. Pharmacol Res 2024; 208:107357. [PMID: 39159732 DOI: 10.1016/j.phrs.2024.107357] [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: 04/29/2024] [Revised: 07/17/2024] [Accepted: 08/15/2024] [Indexed: 08/21/2024]
Abstract
Aberrant energy metabolism in the brain is a common pathological feature in the preclinical Alzheimer's Disease (AD). Recent studies have reported the early elevations of glycolysis-involved enzymes in AD brain and cerebrospinal fluid according to a large-scale proteomic analysis. It's well-known that astrocytes exhibit strong glycolytic metabolic ability and play a key role in the regulation of brain homeostasis. However, its relationship with glycolytic changes and cognitive deficits in early AD patients is unclear. Here, we investigated the mechanisms by which astrocyte glycolysis is involved in early AD and its potential as a therapeutic target. Our results suggest that Aβ-activated microglia can induce glycolytic-enhanced astrocytes in vitro, and that these processes are dependent on the activation of the AKT-mTOR-HIF-1α pathway. In early AD models, the increase in L-lactate produced by enhanced glycolysis of astrocytes leads to spatial cognitive impairment by disrupting synaptic plasticity and accelerating Aβ aggregation. Furthermore, we find rapamycin, the mTOR inhibitor, can rescue the impaired spatial memory and Aβ burden by inhibiting the glycolysis-derived L-lactate in the early AD models. In conclusion, we highlight that astrocytic glycolysis plays a critical role in the early onset of AD and that the modulation of glycolysis-derived L-lactate by rapamycin provides a new strategy for the treatment of AD.
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Affiliation(s)
- Xiu Yang
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China; Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Yuan-Hao Chen
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Le Liu
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Zheng Gu
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Yue You
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Jing-Ru Hao
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Nan Sun
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Can Gao
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.
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7
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Chen Y, Li Z, Jiang H, Wang L, Zhang Y, Zhang X, Jiang W, Wang F. Biological evaluation of curdlan sulfate-based nanoparticles in trained immunity enhancement: In vitro and in vivo approaches. Int J Biol Macromol 2024; 281:136208. [PMID: 39362439 DOI: 10.1016/j.ijbiomac.2024.136208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 09/14/2024] [Accepted: 09/30/2024] [Indexed: 10/05/2024]
Abstract
OBJECTIVES Recently, more and more evidences suggest that β-glucans can induce trained immunity and non-specific protections against pathogens. However, most of the reports evaluated the immunological activities of β-glucans through injection route but no nasal inhalation. In this study, the effects of curdlan sulfate-based nanoparticles, CS/O-HTCC on trained immunity through intranasal administration were evaluated. METHODS Macrophages were treated with CS/O-HTCC and the metabolisms of the macrophages were detected. Mice were intranasal administered with CS/O-HTCC for 3 times with a 14 days interval, then the antitumor or infection prevention effects were assessed. RESULTS In vitro, CS/O-HTCC enhanced the macrophage metabolism significantly through upregulating glycolysis (26.1 ± 4.3 mpH/min) and oxidative phosphorylation (36.0 ± 9.0 pmol/min) compared with that of negative group (7.5 ± 2.3 mpH/min and 19.5 ± 4.9 pmol/min). In vivo, CS/O-HTCC inhibited lung metastasis of B16F10 tumor cells and improved the survival time (26.5 days) of the nmice compared with negative group (19.5 days). Moreover, CS/O-HTCC prevented the lung infections by Escherichia coli or Streptococcus pneumoniae (less bacterial residual) and reduced lung damages. CONCLUSIONS CS/O-HTCC can induce trained immunity through enhancing the metabolism of macrophages and enhance the non-specific protection against pathogens through intranasal immunization.
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Affiliation(s)
- Yipan Chen
- Key Laboratory of Chemical Biology of Natural Products (Ministry of education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, Shandong, China
| | - Zuyi Li
- Key Laboratory of Chemical Biology of Natural Products (Ministry of education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, Shandong, China
| | - Honglei Jiang
- Key Laboratory of Chemical Biology of Natural Products (Ministry of education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, Shandong, China
| | - Longkun Wang
- Key Laboratory of Chemical Biology of Natural Products (Ministry of education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, Shandong, China
| | - Yuhe Zhang
- Key Laboratory of Chemical Biology of Natural Products (Ministry of education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, Shandong, China
| | - Xinke Zhang
- Department of Pharmacology, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wenjie Jiang
- Key Laboratory of Chemical Biology of Natural Products (Ministry of education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, Shandong, China.
| | - Fengshan Wang
- Key Laboratory of Chemical Biology of Natural Products (Ministry of education), Institute of Biochemical and Biotechnological Drug, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, Shandong, China; NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, National Glycoengineering Research Center, Shandong University, Jinan 250012, Shandong, China.
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8
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Hoffmann MH, Kirchner H, Krönke G, Riemekasten G, Bonelli M. Inflammatory tissue priming: novel insights and therapeutic opportunities for inflammatory rheumatic diseases. Ann Rheum Dis 2024; 83:1233-1253. [PMID: 38702177 DOI: 10.1136/ard-2023-224092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 04/22/2024] [Indexed: 05/06/2024]
Abstract
Due to optimised treatment strategies and the availability of new therapies during the last decades, formerly devastating chronic inflammatory diseases such as rheumatoid arthritis or systemic sclerosis (SSc) have become less menacing. However, in many patients, even state-of-the-art treatment cannot induce remission. Moreover, the risk for flares strongly increases once anti-inflammatory therapy is tapered or withdrawn, suggesting that underlying pathological processes remain active even in the absence of overt inflammation. It has become evident that tissues have the ability to remember past encounters with pathogens, wounds and other irritants, and to react more strongly and/or persistently to the next occurrence. This priming of the tissue bears a paramount role in defence from microbes, but on the other hand drives inflammatory pathologies (the Dr Jekyll and Mr Hyde aspect of tissue adaptation). Emerging evidence suggests that long-lived tissue-resident cells, such as fibroblasts, macrophages, long-lived plasma cells and tissue-resident memory T cells, determine inflammatory tissue priming in an interplay with infiltrating immune cells of lymphoid and myeloid origin, and with systemically acting factors such as cytokines, extracellular vesicles and antibodies. Here, we review the current state of science on inflammatory tissue priming, focusing on tissue-resident and tissue-occupying cells in arthritis and SSc, and reflect on the most promising treatment options targeting the maladapted tissue response during these diseases.
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Affiliation(s)
| | - Henriette Kirchner
- Institute for Human Genetics, Epigenetics and Metabolism Lab, University of Lübeck, Lübeck, Germany
| | - Gerhard Krönke
- Department of Rheumatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Gabriela Riemekasten
- Department of Rheumatology and Clinical Immunology, University of Lübeck, Lübeck, Germany
| | - Michael Bonelli
- Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Vienna, Austria
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Scafidi A, Lind-Holm Mogensen F, Campus E, Pailas A, Neumann K, Legrave N, Bernardin F, Pereira SL, Antony PM, Nicot N, Mittelbronn M, Grünewald A, Nazarov PV, Poli A, Van Dyck E, Michelucci A. Metformin impacts the differentiation of mouse bone marrow cells into macrophages affecting tumour immunity. Heliyon 2024; 10:e37792. [PMID: 39315158 PMCID: PMC11417223 DOI: 10.1016/j.heliyon.2024.e37792] [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: 07/04/2024] [Revised: 09/04/2024] [Accepted: 09/10/2024] [Indexed: 09/25/2024] Open
Abstract
Background Epidemiological studies suggest that metformin reduces the risk of developing several types of cancer, including gliomas, and improves the overall survival in cancer patients. Nevertheless, while the effect of metformin on cancer cells has been extensively studied, its impact on other components of the tumour microenvironment, such as macrophages, is less understood. Results Metformin-treated mouse bone marrow cells differentiate into spindle-shaped macrophages exhibiting increased phagocytic activity and tumour cell cytotoxicity coupled with modulated expression of co-stimulatory molecules displaying reduced sensitivity to inflammatory cues compared with untreated cells. Transcriptional analyses of metformin-treated mouse bone marrow-derived macrophages show decreased expression levels of pro-tumour genes, including Tgfbi and Il1β, related to enhanced mTOR/HIF1α signalling and metabolic rewiring towards glycolysis. Significance Our study provides novel insights into the immunomodulatory properties of metformin in macrophages and its potential application in preventing tumour onset and in cancer immunotherapy.
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Affiliation(s)
- Andrea Scafidi
- Neuro-Immunology Group, Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, L-4365 Esch-sur-Alzette, Luxembourg
| | - Frida Lind-Holm Mogensen
- Neuro-Immunology Group, Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, L-4365 Esch-sur-Alzette, Luxembourg
| | - Eleonora Campus
- Neuro-Immunology Group, Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, L-4365 Esch-sur-Alzette, Luxembourg
| | - Alexandros Pailas
- Faculty of Science, Technology and Medicine, University of Luxembourg, L-4365 Esch-sur-Alzette, Luxembourg
- DNA Repair and Chemoresistance, Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
| | - Katrin Neumann
- DNA Repair and Chemoresistance, Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
| | - Nathalie Legrave
- Metabolomics Platform, Department of Cancer Research, Luxembourg Institute of Health, L-1445 Strassen, Luxembourg
| | - François Bernardin
- Metabolomics Platform, Department of Cancer Research, Luxembourg Institute of Health, L-1445 Strassen, Luxembourg
| | - Sandro L. Pereira
- Molecular and Functional Neurobiology Group, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, L-4362 Esch-sur-Alzette, Luxembourg
| | - Paul M.A. Antony
- Bioimaging Platform, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, L-4362 Esch-sur-Alzette, Luxembourg
| | - Nathalie Nicot
- LuxGen Genome Center, Luxembourg Institute of Health & Laboratoire National de Santé, L-3555 Dudelange, Luxembourg
| | - Michel Mittelbronn
- Department of Life Sciences and Medicine, Faculty of Science, Technology and Medicine, University of Luxembourg, L-4367 Belvaux, Luxembourg
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, L-4362 Esch-sur-Alzette, Luxembourg
- Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
- Luxembourg Center of Neuropathology, Laboratoire National de Santé, L-3555 Dudelange, Luxembourg
- National Center of Pathology, Laboratoire National de Santé, L-3555 Dudelange, Luxembourg
| | - Anne Grünewald
- Molecular and Functional Neurobiology Group, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, L-4362 Esch-sur-Alzette, Luxembourg
| | - Petr V. Nazarov
- Bioinformatics and AI unit, Department of Medical Informatics, Luxembourg Institute of Health, L-1445 Strassen, Luxembourg
- Multiomics Data Science Group, Department of Cancer Research, Luxembourg Institute of Health, L-1445 Strassen, Luxembourg
| | - Aurélie Poli
- Neuro-Immunology Group, Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
| | - Eric Van Dyck
- DNA Repair and Chemoresistance, Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
| | - Alessandro Michelucci
- Neuro-Immunology Group, Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
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10
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Liu J, Jiang B, Xu W, Liu Q, Huang H, Chang X, Ma G, Xu X, Zhou L, Xiao GG, Guo J. Targeted inhibition of CHKα and mTOR in models of pancreatic ductal adenocarcinoma: A novel regimen for metastasis. Cancer Lett 2024; 605:217280. [PMID: 39343354 DOI: 10.1016/j.canlet.2024.217280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 09/17/2024] [Accepted: 09/24/2024] [Indexed: 10/01/2024]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly metastatic malignancy for which there are currently no effective anti-metastatic therapies. Herein, we employed single-cell RNA sequencing and metabolomics analysis to demonstrate that metastatic cells highly express focal adhesion kinase (FAK), which promotes metastasis by remodeling choline kinase α (CHKα)-dependent choline metabolism. We designed a novel CHKα inhibitor, CHKI-03, and verified its efficacy in inhibiting metastasis in multiple preclinical models. Classical and newly synthesized small-molecule inhibitors have previously been used to assess the therapeutic potential of targeting mTOR and CHKα in various animal models. Mechanistically, FAK activated mTOR and its downstream HIF-1α, thereby elevating CHKα expression and promoting the proliferation, migration, and invasion of PDAC cells, as well as tumor growth and metastasis. Consistently, high expression levels of both FAK and CHKα are correlated with poor prognosis in patients with PDAC. Notably, CHK1-03 inhibited CHKα expression and also suppressed mTORC1 phosphorylation, disrupting the mTORC1-CHKα positive feedback loop. In addition, the combination of CHKI-03 and the mTORC1 inhibitor rapamycin synergistically inhibited tumor growth and metastasis in PDX models. The combination of CHKI-03 and rapamycin demonstrates considerable therapeutic efficacy in PDO models resistant to gemcitabine. Our findings reveal a pivotal mechanism underlying PDAC metastasis regulated by mTORC1-CHKα loop-dependent choline metabolism reprogramming, highlighting the therapeutic potential of this novel regimen for treating PDAC metastasis.
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Affiliation(s)
- Jianzhou Liu
- Department of General Surgery, Key Laboratory of Research in Pancreatic Tumor, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China; Institute of Clinical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Bolun Jiang
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 31003, China
| | - Wenchao Xu
- Department of General Surgery, Key Laboratory of Research in Pancreatic Tumor, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Qiaofei Liu
- Department of General Surgery, Key Laboratory of Research in Pancreatic Tumor, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Haoran Huang
- Department of General Surgery, Key Laboratory of Research in Pancreatic Tumor, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xiaoyan Chang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Guoxu Ma
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine Prescription, Chinese Academy of Medical Sciences, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Xudong Xu
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine Prescription, Chinese Academy of Medical Sciences, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Li Zhou
- Department of General Surgery, Key Laboratory of Research in Pancreatic Tumor, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Gary Guishan Xiao
- Functional Genomics and Proteomics Center, Creighton University Medical Center, 601N 30th ST, Omaha, NE, 68131, USA
| | - Junchao Guo
- Department of General Surgery, Key Laboratory of Research in Pancreatic Tumor, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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11
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Rocha PS, Silva AA, Queiroz-Junior CM, Braga AD, Moreira TP, Teixeira MM, Amaral FA. Trained immunity of synovial macrophages is associated with exacerbated joint inflammation and damage after Staphylococcus aureus infection. Inflamm Res 2024:10.1007/s00011-024-01946-w. [PMID: 39340660 DOI: 10.1007/s00011-024-01946-w] [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: 05/09/2024] [Revised: 08/06/2024] [Accepted: 09/09/2024] [Indexed: 09/30/2024] Open
Abstract
OBJECTIVES Investigate whether and which synoviocytes would acquire trained immunity characteristics that could exacerbate joint inflammation following a secondary Staphylococcus aureus infection. METHODS Lipopolysaccharide (LPS) and S. aureus were separately or double injected (21 days of interval) into the tibiofemoral joint cavity of male C57BL/6 mice. At different time points after these stimulations, mechanical nociception was analyzed followed by the analysis of signs of inflammation and damage in the affected joints. The trained immunity markers, including the glycolytic and mTOR pathway, were analyzed in whole tissue or isolated synoviocytes. A group of mice was treated with Rapamycin, an mTOR inhibitor before LPS or S. aureus stimulation. RESULTS The double LPS - S. aureus hit promoted intense joint inflammation and damage compared to single joint stimulation, including markers in synoviocyte activation, production of proinflammatory cytokines, persistent nociception, and bone damage, despite not reducing the bacterial clearance. The double LPS - S. aureus hit joints increased the synovial macrophage population expressing CX3CR1 alongside triggering established epigenetic modifications associated with trained immunity events in these cells, such as the upregulation of the mTOR signaling pathway (p-mTOR and HIF1α) and the trimethylation of histone H3. Mice treated with Rapamycin presented reduced CX3CR1+ macrophage activation, joint inflammation, and bone damage. CONCLUSIONS There is a trained immunity phenotype in CX3CR1+ synovial macrophages that contributes to the exacerbation of joint inflammation and damage during septic arthritis caused by S. aureus.
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Affiliation(s)
- Peter Silva Rocha
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Adryan Aparecido Silva
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Celso Martins Queiroz-Junior
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Amanda Dias Braga
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Thaiane Pinto Moreira
- Department of Microbiology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Flávio Almeida Amaral
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil.
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12
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Cui D, Yu T. Unveiling the glycolysis in sepsis: Integrated bioinformatics and machine learning analysis identifies crucial roles for IER3, DSC2, and PPARG in disease pathogenesis. Medicine (Baltimore) 2024; 103:e39867. [PMID: 39331858 PMCID: PMC11441936 DOI: 10.1097/md.0000000000039867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/29/2024] Open
Abstract
Sepsis, a multifaceted syndrome driven by an imbalanced host response to infection, remains a significant medical challenge. At its core lies the pivotal role of glycolysis, orchestrating immune responses especially in severe sepsis. The intertwined dynamics between glycolysis, sepsis, and immunity, however, have gaps in knowledge with several Crucial genes still shrouded in ambiguity. We harvested transcriptomic profiles from the peripheral blood of 107 septic patients juxtaposed against 29 healthy controls. Delving into this dataset, differential expression analysis shed light on genes distinctly linked to glycolysis in both cohorts. Harnessing the prowess of LASSO regression and SVM-RFE, we isolated Crucial genes, paving the way for a sepsis risk prediction model, subsequently vetted via Calibration and decision curve analysis. Using the CIBERSORT algorithm, we further mapped 22 immune cell subtypes within the septic samples, establishing potential interactions with the delineated Crucial genes. Our efforts unveiled 21 genes intricately tied to glycolysis that exhibited differential expression patterns. Gene set enrichment analysis (GSEA) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses offered insights, spotlighting pathways predominantly associated with oxidative phosphorylation, PPAR signaling pathway, Glycolysis/Gluconeogenesis and HIF-1 signaling pathway. Among the myriad genes, IER3, DSC2, and PPARG emerged as linchpins, their prominence in sepsis further validated through ROC analytics. These sentinel genes demonstrated profound affiliations with various immune cell facets, bridging the complex terrain of glycolysis, sepsis, and immune responses. In line with our endeavor to "unveil the glycolysis in sepsis," the discovery of IER3, DSC2, and PPARG reinforces their cardinal roles in sepsis pathogenesis. These revelations accentuate the intricate dance between glycolysis and immunological shifts in septic conditions, offering novel avenues for therapeutic interventions.
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Affiliation(s)
- Dongqing Cui
- Emergency Department, Beijing Sixth Hospital, Beijing, China
| | - Tian Yu
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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13
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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; 88:e0017122. [PMID: 39230301 PMCID: PMC11426019 DOI: 10.1128/mmbr.00171-22] [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: 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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14
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Jiang G, Zou Y, Zhao D, Yu J. Optimising vaccine immunogenicity in ageing populations: key strategies. THE LANCET. INFECTIOUS DISEASES 2024:S1473-3099(24)00497-3. [PMID: 39326424 DOI: 10.1016/s1473-3099(24)00497-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/17/2024] [Accepted: 07/25/2024] [Indexed: 09/28/2024]
Abstract
Vaccination has been shown to be the most effective means of preventing infectious diseases, although older people commonly have a suboptimal immune response to vaccines and thus impaired protection against subsequent adverse outcomes. This Review provides an overview of the existing mechanistic insights into compromised vaccine response for respiratory infectious diseases in older people, defined as aged 65 years and older, including immunosenescence, epigenetic regulation, trained immunity, and gut microbiota. We further summarise the latest proven or potential strategies to strengthen weakened immunogenicity. Insights from these analyses will be conducive to the development of the next generation of vaccines.
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Affiliation(s)
- Guangzhen Jiang
- Guangzhou National Laboratory, Guangzhou International Bio Island, Guangzhou, China; School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yushu Zou
- Department of Biomedical Informatics, School of Basic Medical Sciences and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Dongyu Zhao
- Department of Biomedical Informatics, School of Basic Medical Sciences and State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China.
| | - Jingyou Yu
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Guangzhou National Laboratory, Guangzhou International Bio Island, Guangzhou, China.
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15
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Yang J, Cui S, Shao B, Zhao Y, Wang Z, Liu Q, Zhang Y, Yang D. ScRNA-seq reveals trained immunity-engaged Th17 cell activation against Edwardsiella piscicida-induced intestinal inflammation in teleost. Microbiol Res 2024; 289:127912. [PMID: 39326350 DOI: 10.1016/j.micres.2024.127912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 08/19/2024] [Accepted: 09/13/2024] [Indexed: 09/28/2024]
Abstract
Mucosal immunity typically involves innate and adaptive immune cells, while the cellular mechanism of teleost's intestinal immune cells that engages gut homeostasis against bacterial infection remains largely unknown. Taking advantage of the enteric fish pathogen (Edwardsiella piscicida) infection-induced intestinal inflammation in turbot (Scophthalmus maximus), we find that β-glucan training could mitigate the bacterial infection-induced intestinal inflammation. Through single-cell transcriptome profiling and cellular function analysis, we identify that E. piscicida infection could tune down the activation of intestinal Th17 cells, while β-glucan-training could preserve the potential to amplify and restore the function of intestinal Th17 cells. Moreover, through pharmacological inhibitor treatment, we identify that Th17 cells are essential for ameliorating bacterial infection-induced intestinal inflammation in teleost. Taken together, these results suggest a new concept of trained immunity activation to regulate the intestinal Th17 cells' function, which might contribute to better developing strategies for maintaining gut homeostasis against bacterial infection.
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Affiliation(s)
- Jin Yang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Shu Cui
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Boning Shao
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Yanbo Zhao
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Zhuang Wang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Qin Liu
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China; Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China
| | - Yuanxing Zhang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China
| | - Dahai Yang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China; Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China.
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16
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Wang X, Zhang S, Xue D, Neculai D, Zhang J. Metabolic reprogramming of macrophages in cancer therapy. Trends Endocrinol Metab 2024:S1043-2760(24)00244-3. [PMID: 39304355 DOI: 10.1016/j.tem.2024.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 08/21/2024] [Accepted: 08/23/2024] [Indexed: 09/22/2024]
Abstract
Cancer presents a significant global public health challenge. Within the tumor microenvironment (TME), macrophages are the most abundant immune cell population. Tumor-associated macrophages (TAMs) undergo metabolic reprogramming through influence of the TME; thus, by manipulating key metabolic pathways such as glucose, lipid, or amino acid metabolism, it may be possible to shift TAMs towards an antitumor state, enhancing the immune response against tumors. Here, we highlight the metabolic reprogramming of macrophages as a potential approach for cancer immunotherapy. We explore the major pathways involved in the metabolic reprogramming of TAMs and offer new and valuable insights on the current technologies utilized for TAM reprogramming, including genome editing, antibodies, small molecules, nanoparticles and other in situ editing strategies.
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Affiliation(s)
- Xudong Wang
- Liangzhu Laboratory, Zhejiang University, Hangzhou, 311121, China; Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou, China.
| | - Shaolong Zhang
- Liangzhu Laboratory, Zhejiang University, Hangzhou, 311121, China
| | - Dixuan Xue
- Liangzhu Laboratory, Zhejiang University, Hangzhou, 311121, China; The Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Dante Neculai
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Jin Zhang
- Liangzhu Laboratory, Zhejiang University, Hangzhou, 311121, China; Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou, China; The Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China; Institute of Hematology, Hangzhou, 310058, China; Center of Gene/Cell Engineering and Genome Medicine of Zhejiang Province, Hangzhou, 310000, China.
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17
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Yu J, Wang X, Zhou Y, Hu J, Gu L, Zhou H, Yue C, Zhou P, Li Y, Zhao Q, Zhang C, Hu Y, Zeng F, Zhao F, Li G, Feng Y, He M, Huang S, Wu W, Huang N, Cui K, Li J. EDIL3 alleviates Mannan-induced psoriatic arthritis by slowing the intracellular glycolysis process in mononuclear-derived dendritic cells. Inflammation 2024:10.1007/s10753-024-02134-y. [PMID: 39289212 DOI: 10.1007/s10753-024-02134-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 07/12/2024] [Accepted: 08/20/2024] [Indexed: 09/19/2024]
Abstract
Psoriatic arthritis (PsA) is an immune-mediated, chronic inflammatory joint disease that commonly occurs as a complication of psoriasis. EGF-like repeats and discoidal I-like domain 3 (EDIL3) is a secreted protein with multiple structural domains and associated with various physiological functions. In this study, we employed a mannan-induced psoriatic arthritis model to investigate the impact of EDIL3 on PsA pathogenesis. Notably, a downregulation of EDIL3 expression was observed in the PsA model, which correlated with increased disease severity. EDIL3 knockout mice exhibited a more severe phenotype of PsA, which was ameliorated upon re-infusion of recombinant EDIL3 protein. The mitigation effect of EDIL3 on PsA depends on its regulation of the activation of monocyte-derived DCs (MoDCs) and T-help 17 cells (Th17). After inhibiting the function of MoDCs and Th17 cells with neutralizing antibodies, the beneficial effects of EDIL3 on PsA were lost. By inducing adenosine monophosphate (AMP)-activated protein kinase (AMPK) phosphorylation and suppressing protein kinase B (AKT) phosphorylation, EDIL3 attenuates intracellular glycolysis in MoDCs stimulated by glucose, thereby impeding their maturation and differentiation. Moreover, it diminishes the differentiation of Th17 cells and decelerates the progression of PsA. In conclusion, our findings elucidate the role and mechanism of EDIL3 in the development of PsA, providing a new target for clinical diagnosis and treatment.
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Affiliation(s)
- Jiadong Yu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaoyan Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yifan Zhou
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Jing Hu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Linna Gu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hong Zhou
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Chengcheng Yue
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Pei Zhou
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ya Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qixiang Zhao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
| | - Chen Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yawen Hu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Fanlian Zeng
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Fulei Zhao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Guolin Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yuting Feng
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Mingxiang He
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Shishi Huang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenling Wu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Nongyu Huang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kaijun Cui
- Department of Cardiology, West China Hospital, Sichuan University, 37 Guoxue Road, Chengdu, 610041, Sichuan, China
| | - Jiong Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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18
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Tang P, Liu B. Overactivation of NF-kB pathway can induce apoptosis by down-regulating glycolysis in human degenerative nucleus pulposus cells. Heliyon 2024; 10:e36905. [PMID: 39281505 PMCID: PMC11395756 DOI: 10.1016/j.heliyon.2024.e36905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 08/23/2024] [Accepted: 08/23/2024] [Indexed: 09/18/2024] Open
Abstract
Intervertebral disc herniation, a prevalent condition in spinal surgery that frequently results in low back pain and lower limb dysfunction, significantly impacting patients' quality of life. Several factors, including spine biomechanics, biology, nutrition, injury, and abnormal inflammatory responses, have been associated with the development of intervertebral disc herniation. Among these factors, abnormal inflammatory responses have received considerable attention as a crucial mediator of both clinical symptoms and disease progression during the intervertebral disc herniation process. However, the underlying mechanisms of inflammation-induced intervertebral disc herniation remain inadequately explored. The NF-κB (Nuclear Factor-κB) pathway plays a central role in regulating the expression of proinflammatory cytokines. Research on intervertebral disc herniation has suggested that NF-κB can activate the NLRP3 inflammasome, thereby exacerbating intervertebral disc degeneration. Targeting the NF-κB pathway has shown promise in alleviating disc degeneration and associated pain. Previous research indicated that the upregulation of the NF-κB pathway, achieved through the inhibition of A20 (zinc finger protein A20), accelerated intervertebral disc herniation. In the present study, we observed that increased activation of NF-κB pathway activation suppressed the glycolysis process in nucleus pulposus cells (NPCs), leading to NPC apoptosis. Conversely, inhibition of the NF-κB pathway overactivated promoted the restoration of glycolysis and reversed NPC apoptosis, especially when treated with Lipopolysaccharide (LPS).
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Affiliation(s)
- Pan Tang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, China
- Chongqing Municipal Health Commission Key Laboratory of Musculoskeletal Regeneration and Translational Medicine, China
- Orthopaedic Research Laboratory of Chongqing Medical University, China
| | - Bo Liu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, China
- Chongqing Municipal Health Commission Key Laboratory of Musculoskeletal Regeneration and Translational Medicine, China
- Orthopaedic Research Laboratory of Chongqing Medical University, China
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19
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Li H, Niu L, Wang J, Chang Q, Zhang S, Wang J, Zeng J, Gao M, Ge J. Strategy against super-resistant bacteria: Curdlan-induced trained immunity combined with multi-epitope subunit vaccine. Int J Biol Macromol 2024; 280:135663. [PMID: 39284466 DOI: 10.1016/j.ijbiomac.2024.135663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 09/03/2024] [Accepted: 09/12/2024] [Indexed: 09/20/2024]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is rapidly spreading worldwide, emerging as a leading cause of bacterial infections in healthcare and community settings. This poses serious risks to human health. The shortage of novel antibiotics and the absence of effective vaccines make MRSA particularly challenging to treat. Existing vaccine development strategies often fail to provide early protection against infections, highlighting the urgent need for solutions. Herein, we propose a novel strategy combining trained immunity with a multi-epitope subunit vaccine to combat MRSA infections. We comprehensively evaluated the trained immune phenotypes induced by β-glucan from barley and curdlan. Macrophages trained with curdlan exhibited a more balanced inflammatory response compared to β-glucan from barley, expressing higher levels of IL-1β, IFN-β, TGF-β, and CCL2 upon secondary stimulation. Furthermore, curdlan-induced trained immunity rapidly provided excellent protection against S. aureus infection in mice. RNA-sequencing analysis revealed that curdlan modulates the Wnt signaling pathway in macrophages, resolves inflammation, and promotes tissue repair. When combined with one or two doses of S. aureus multivalent epitope antigen against MRSA infection, curdlan-induced trained immunity enhanced early protection and promoted recovery. Our study demonstrates the feasibility of combining trained immunity with vaccine protection against MRSA, providing a strategy against multi-drug resistant bacteria.
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Affiliation(s)
- Hai Li
- Heilongjiang Provincial Key Laboratory of Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Lingdi Niu
- Heilongjiang Provincial Key Laboratory of Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jiaqing Wang
- Heilongjiang Provincial Key Laboratory of Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Qingru Chang
- Heilongjiang Provincial Key Laboratory of Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Shuhe Zhang
- Heilongjiang Provincial Key Laboratory of Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jiaqi Wang
- Heilongjiang Provincial Key Laboratory of Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jiankai Zeng
- Heilongjiang Provincial Key Laboratory of Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Mingchun Gao
- Heilongjiang Provincial Key Laboratory of Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
| | - Junwei Ge
- Heilongjiang Provincial Key Laboratory of Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
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20
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Morali K, Giacomello G, Vuono M, Gregori S. Leveraging current insights on IL-10-producing dendritic cells for developing effective immunotherapeutic approaches. FEBS Lett 2024. [PMID: 39266465 DOI: 10.1002/1873-3468.15017] [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: 03/28/2024] [Revised: 07/29/2024] [Accepted: 07/31/2024] [Indexed: 09/14/2024]
Abstract
Dendritic cells (DC) are professional antigen-presenting cells involved in promoting and controlling immune responses. Different subsets of DC, named tolerogenic (tol)DC, play a critical role in the maintenance of tissue homeostasis and in fostering tolerance. These unique skills make tolDC especially attractive for strategies aimed at re-establishing/inducing tolerance in immune-mediated conditions. The generation of potent tolDC in vitro from peripheral blood monocytes has seen remarkable advancements. TolDC modulate T cell dynamics by favoring regulatory T cells (Tregs) and curbing effector/pathogenic T cells. Among the several methods developed for in vitro tolDC generation, IL-10 conditioning has been proven to be the most efficient, as IL-10-modulated tolDC were demonstrated to promote Tregs with the strongest suppressive activities. Investigating the molecular, metabolic, and functional profiles of tolDC uncovers essential pathways that facilitate their immunoregulatory functions. This Review provides an overview of current knowledge on the role of tolDC in health and disease, focusing on IL-10 production, functional characterization of in vitro generated tolDC, molecular and metabolic changes occurring in tolDC induced by tolerogenic agents, clinical applications of tolDC-based therapy, and finally new perspectives in the generation of effective tolDC.
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Affiliation(s)
- Konstantina Morali
- Mechanisms of Peripheral Tolerance Unit, San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Gloria Giacomello
- Mechanisms of Peripheral Tolerance Unit, San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
- PhD Course in Medicina Traslazionale e Molecolare (DIMET), University of Milano Bicocca, Italy
| | - Michela Vuono
- Mechanisms of Peripheral Tolerance Unit, San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
- PhD Course in Molecular Medicine, University Vita-Salute San Raffaele, Milan, Italy
| | - Silvia Gregori
- Mechanisms of Peripheral Tolerance Unit, San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
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21
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Díaz CR, Hernández-Huerta MT, Mayoral LPC, Villegas MEA, Zenteno E, Cruz MM, Mayoral EPC, Del Socorro Pina Canseco M, Andrade GM, Castellanos MÁ, Matías Salvador JM, Cruz Parada E, Martínez Barras A, Cruz Fernández JN, Scott-Algara D, Pérez-Campos E. Non-Coding RNAs and Innate Immune Responses in Cancer. Biomedicines 2024; 12:2072. [PMID: 39335585 PMCID: PMC11429077 DOI: 10.3390/biomedicines12092072] [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: 07/23/2024] [Revised: 08/27/2024] [Accepted: 09/09/2024] [Indexed: 09/30/2024] Open
Abstract
Non-coding RNAs (ncRNAs) and the innate immune system are closely related, acting as defense mechanisms and regulating gene expression and innate immunity. Both are modulators in the initiation, development and progression of cancer. We aimed to review the major types of ncRNAs, including small interfering RNAs (siRNAs), microRNAs (miRNAs), piwi-interacting RNAs (piRNAs), and long non-coding RNAs (lncRNAs), with a focus on cancer, innate immunity, and inflammation. We found that ncRNAs are closely related to innate immunity, epigenetics, chronic inflammation, and cancer and share properties such as inducibility, specificity, memory, and transfer. These similarities and interrelationships suggest that ncRNAs and modulators of trained immunity, together with the control of chronic inflammation, can be combined to develop novel therapeutic approaches for personalized cancer treatment. In conclusion, the close relationship between ncRNAs, the innate immune system, and inflammation highlights their importance in cancer pathways and their potential as targets for novel therapeutic strategies.
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Affiliation(s)
| | - María Teresa Hernández-Huerta
- Consejo Nacional de Humanidades, Ciencias y Tecnologías (CONAHCyT), Facultad de Medicina y Cirugía, Universidad Autónoma "Benito Juárez" de Oaxaca (UABJO), Oaxaca 68020, Mexico
| | - Laura Pérez-Campos Mayoral
- Centro de Investigación, Facultad de Medicina UNAM-UABJO, Universidad Autónoma "Benito Juárez" de Oaxaca (UABJO), Oaxaca 68020, Mexico
| | | | - Edgar Zenteno
- Facultad de Medicina, Universidad Nacional Autónoma de Mexico, Ciudad de México 04510, Mexico
| | | | - Eduardo Pérez-Campos Mayoral
- Centro de Investigación, Facultad de Medicina UNAM-UABJO, Universidad Autónoma "Benito Juárez" de Oaxaca (UABJO), Oaxaca 68020, Mexico
| | - María Del Socorro Pina Canseco
- Centro de Investigación, Facultad de Medicina UNAM-UABJO, Universidad Autónoma "Benito Juárez" de Oaxaca (UABJO), Oaxaca 68020, Mexico
| | - Gabriel Mayoral Andrade
- Centro de Investigación, Facultad de Medicina UNAM-UABJO, Universidad Autónoma "Benito Juárez" de Oaxaca (UABJO), Oaxaca 68020, Mexico
| | | | | | - Eli Cruz Parada
- Tecnológico Nacional de México/IT Oaxaca, Oaxaca 68030, Mexico
| | | | - Jaydi Nora Cruz Fernández
- Centro de Investigación, Facultad de Medicina UNAM-UABJO, Universidad Autónoma "Benito Juárez" de Oaxaca (UABJO), Oaxaca 68020, Mexico
| | - Daniel Scott-Algara
- Unité de Biologie Cellulaire des Lymphocytes and Direction of International Affairs, Institut Pasteur, 75015 Paris, France
| | - Eduardo Pérez-Campos
- Tecnológico Nacional de México/IT Oaxaca, Oaxaca 68030, Mexico
- Laboratorio de Patología Clínica "Dr. Eduardo Pérez Ortega", Oaxaca 68000, Mexico
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22
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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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23
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Xu S, Jia M, Guo J, He J, Chen X, Xu Y, Hu W, Wu D, Wu C, Ji X. Ticking Brain: Circadian Rhythm as a New Target for Cerebroprotection. Stroke 2024; 55:2385-2396. [PMID: 39011642 DOI: 10.1161/strokeaha.124.046684] [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] [Indexed: 07/17/2024]
Abstract
Circadian rhythm is a master process observed in nearly every type of cell throughout the body, and it macroscopically regulates daily physiology. Recent clinical trials have revealed the effects of circadian variation on the incidence, pathophysiological processes, and prognosis of acute ischemic stroke. Furthermore, core clock genes, the cell-autonomous pacemakers of the circadian rhythm, affect the neurovascular unit-composing cells in a nonparallel manner after the same pathophysiological processes of ischemia/reperfusion. In this review, we discuss the influence of circadian rhythms and clock genes on each type of neurovascular unit cell in the pathophysiological processes of acute ischemic stroke.
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Affiliation(s)
- Shuaili Xu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders (S.X., X.J.), Capital Medical University, Beijing, China
- China-America Institute of Neuroscience, Xuanwu Hospital (S.X., J.G., J.H., X.C., Y.X., W.H., D.W., X.J.), Capital Medical University, Beijing, China
| | - Milan Jia
- Department of Neurology, Xuanwu Hospital (M.J., X.C., Y.X., W.H., C.W., X.J.), Capital Medical University, Beijing, China
| | - Jiaqi Guo
- China-America Institute of Neuroscience, Xuanwu Hospital (S.X., J.G., J.H., X.C., Y.X., W.H., D.W., X.J.), Capital Medical University, Beijing, China
| | - Jiachen He
- China-America Institute of Neuroscience, Xuanwu Hospital (S.X., J.G., J.H., X.C., Y.X., W.H., D.W., X.J.), Capital Medical University, Beijing, China
| | - Xi Chen
- Department of Neurology, Xuanwu Hospital (M.J., X.C., Y.X., W.H., C.W., X.J.), Capital Medical University, Beijing, China
- China-America Institute of Neuroscience, Xuanwu Hospital (S.X., J.G., J.H., X.C., Y.X., W.H., D.W., X.J.), Capital Medical University, Beijing, China
| | - Yi Xu
- Department of Neurology, Xuanwu Hospital (M.J., X.C., Y.X., W.H., C.W., X.J.), Capital Medical University, Beijing, China
- China-America Institute of Neuroscience, Xuanwu Hospital (S.X., J.G., J.H., X.C., Y.X., W.H., D.W., X.J.), Capital Medical University, Beijing, China
| | - Wenbo Hu
- Department of Neurology, Xuanwu Hospital (M.J., X.C., Y.X., W.H., C.W., X.J.), Capital Medical University, Beijing, China
- China-America Institute of Neuroscience, Xuanwu Hospital (S.X., J.G., J.H., X.C., Y.X., W.H., D.W., X.J.), Capital Medical University, Beijing, China
| | - Di Wu
- China-America Institute of Neuroscience, Xuanwu Hospital (S.X., J.G., J.H., X.C., Y.X., W.H., D.W., X.J.), Capital Medical University, Beijing, China
| | - Chuanjie Wu
- Department of Neurology, Xuanwu Hospital (M.J., X.C., Y.X., W.H., C.W., X.J.), Capital Medical University, Beijing, China
| | - Xunming Ji
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders (S.X., X.J.), Capital Medical University, Beijing, China
- Department of Neurology, Xuanwu Hospital (M.J., X.C., Y.X., W.H., C.W., X.J.), Capital Medical University, Beijing, China
- China-America Institute of Neuroscience, Xuanwu Hospital (S.X., J.G., J.H., X.C., Y.X., W.H., D.W., X.J.), Capital Medical University, Beijing, China
- Department of Neurosurgery, Xuanwu Hospital (X.J.), Capital Medical University, Beijing, China
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24
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Mann C, van Alst C, Gorressen S, Nega R, Dobrev D, Grandoch M, Fender AC. Ischemia does not provoke the full immune training repertoire in human cardiac fibroblasts. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:7201-7212. [PMID: 38652279 PMCID: PMC11422419 DOI: 10.1007/s00210-024-03107-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 04/13/2024] [Indexed: 04/25/2024]
Abstract
Trained immunity of monocytes, endothelial, and smooth muscle cells augments the cytokine response to secondary stimuli. Immune training is characterized by stabilization of hypoxia-inducible factor (HIF)-1α, mTOR activation, and aerobic glycolysis. Cardiac fibroblast (CF)-myofibroblast transition upon myocardial ischemia/reperfusion (I/R) features epigenetic and metabolic adaptations reminiscent of trained immunity. We assessed the impact of I/R on characteristics of immune training in human CF and mouse myocardium. I/R was simulated in vitro with transient metabolic inhibition. CF primed with simulated I/R or control buffer were 5 days later re-stimulated with Pam3CSK for 24 h. Mice underwent transient left anterior descending artery occlusion or sham operation with reperfusion for up to 5 days. HIF-regulated metabolic targets and cytokines were assessed by qPCR, immunoblot, and ELISA and glucose consumption, lactate release, and lactate dehydrogenase (LDH) by chromogenic assay. Simulated I/R increased HIF-1α stabilization, mTOR phosphorylation, glucose consumption, lactate production, and transcription of PFKB3 and F2RL3, a HIF-regulated target gene, in human CF. PGK1 and LDH mRNAs were suppressed. Intracellular LDH transiently increased after simulated I/R, and extracellular LDH showed sustained elevation. I/R priming increased abundance of pro-caspase-1, auto-cleaved active caspase-1, and the expression and secretion of interleukin (IL)-1β, but did not augment Pam3CSK-stimulated cytokine transcription or secretion. Myocardial I/R in vivo increased abundance of HIF-1 and the precursor and cleaved forms of caspase-1, caspase-11, and caspase-8, but not of LDH-A or phospho-mTOR. I/R partially reproduces features of immune training in human CF, specifically HIF-1α stabilization, aerobic glycolysis, mTOR phosphorylation, and PFKB3 transcription. I/R does not augment PGK1 or LDH expression or the cytokine response to Pam3CSK. Regulation of PAR4 and inflammasome caspases likely occurs independently of an immune training repertoire.
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Affiliation(s)
- Constantin Mann
- Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen, Hufelandstr 55, 45147, Essen, Germany
| | - Carolin van Alst
- Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen, Hufelandstr 55, 45147, Essen, Germany
| | - Simone Gorressen
- Institute for Pharmacology and CARID Cardiovascular Research Institute Düsseldorf, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Rachel Nega
- Institute for Translational Pharmacology and CARID Cardiovascular Research Institute Düsseldorf, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Dobromir Dobrev
- Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen, Hufelandstr 55, 45147, Essen, Germany
| | - Maria Grandoch
- Institute for Translational Pharmacology and CARID Cardiovascular Research Institute Düsseldorf, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Anke C Fender
- Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen, Hufelandstr 55, 45147, Essen, Germany.
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25
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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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26
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Ardali R, Garcia-Nicolas O, Ollagnier C, Sánchez Carvajal JM, Levy M, Yvernault P, de Aboim Borges Fialho de Brito F, Summerfield A. Impact of Oil-in-Water Adjuvanted β-Glucan on Innate Immune Memory in Piglets. Vaccines (Basel) 2024; 12:982. [PMID: 39340014 PMCID: PMC11436110 DOI: 10.3390/vaccines12090982] [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: 07/03/2024] [Revised: 08/13/2024] [Accepted: 08/16/2024] [Indexed: 09/30/2024] Open
Abstract
The non-specific protective effects offered by the concept of "innate immune memory" might represent a promising strategy to tackle early-life threatening infections. Here we tested the potential of an in vitro selected β-glucan in inducing trained immunity using an in vivo porcine model. We assessed the leukocyte transcriptome using blood transcriptomic module (BTM), proinflammatory cytokines, and clinical scoring after a first "training" and a second "stimulation" phase. The possible induction of innate immune memory was tested during a "stimulation" by an LPS-adjuvanted Mycoplasma hyopneumoniae vaccine (Hyogen®) one day after weaning. Following the "training", no major group differences were found, with the exception of a plasma TNF that was only induced by Adj and Adj_BG treatment. After vaccination, all groups developed similar antibody responses. A significant induction of plasma TNF and IL-1β was found in groups that received Adj and Adj_BG. However, following vaccination, the expected early innate BTMs were only induced by the PBS group. In conclusion, the adjuvant alone, adjuvant-formulated β-glucan, or orally applied β-glucan were unable to enhance innate immune reactivity but rather appeared to promote innate immune tolerance. Such an immune status could have both positive and negative implications during this phase of the piglet's life.
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Affiliation(s)
- Razieh Ardali
- Institute of Virology and Immunology, 3147 Mittelhäusern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, 3012 Bern, Switzerland
| | - Obdulio Garcia-Nicolas
- Institute of Virology and Immunology, 3147 Mittelhäusern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland
| | | | - José María Sánchez Carvajal
- Department of Anatomy and Comparative Pathology and Toxicology, Faculty of Veterinary Medicine, University of Córdoba, 14014 Córdoba, Spain
| | - Maria Levy
- Swine Research Unit, Agroscope, 1725 Posieux, Switzerland
| | | | - Francisco de Aboim Borges Fialho de Brito
- Institute of Virology and Immunology, 3147 Mittelhäusern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland
| | - Artur Summerfield
- Institute of Virology and Immunology, 3147 Mittelhäusern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland
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27
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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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28
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Koutroulis I, Kratimenos P, Hoptay C, O’Brien WN, Sanidas G, Byrd C, Triantafyllou M, Goldstein E, Jablonska B, Bharadwaj M, Gallo V, Freishtat R. Mesenchymal stem cell-derived small extracellular vesicles alleviate the immunometabolic dysfunction in murine septic encephalopathy. iScience 2024; 27:110573. [PMID: 39165840 PMCID: PMC11334791 DOI: 10.1016/j.isci.2024.110573] [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: 12/21/2023] [Revised: 05/20/2024] [Accepted: 07/22/2024] [Indexed: 08/22/2024] Open
Abstract
Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection that results in high mortality and long-term sequela. The central nervous system (CNS) is susceptible to injury from infectious processes, which can lead to clinical symptoms of septic encephalopathy (SE). SE is linked to a profound energetic deficit associated with immune dysregulation. Here, we show that intravenous administration of adipose tissue mesenchymal stem cell (MSC)-derived small extracellular vesicles (sEVs) in septic mice improved disease outcomes by reducing SE clinical severity, restoring aerobic metabolism, and lowering pro-inflammatory cytokines in the cerebellum, a key region affected by SE. Our high throughput analysis showed that MSC-derived sEVs partially reversed sepsis-induced transcriptomic changes, highlighting the potential association of miRNA regulators in the cerebellum of MSC-derived sEV-treated mice with miRNAs identified in sEV cargo. MSC-derived sEVs could serve as a promising therapeutic agent in SE through their favorable immunometabolic properties.
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Affiliation(s)
- Ioannis Koutroulis
- Department of Pediatrics, Division of Emergency Medicine, Children’s National Hospital, Washington, DC 20010, USA
- George Washington University School of Medicine and Health Sciences, Washington, DC 20010, USA
- Children’s National Research Institute, Washington, DC 20010, USA
| | - Panagiotis Kratimenos
- George Washington University School of Medicine and Health Sciences, Washington, DC 20010, USA
- Department of Pediatrics, Division of Neonatology, Children’s National Hospital, Washington, DC 20010, USA
- Children’s National Research Institute, Washington, DC 20010, USA
| | - Claire Hoptay
- Children’s National Research Institute, Washington, DC 20010, USA
| | - Wade N. O’Brien
- Dartmouth College Geisel School of Medicine, Hanover, NH 03755, USA
| | - Georgios Sanidas
- Children’s National Research Institute, Washington, DC 20010, USA
| | - Chad Byrd
- Children’s National Research Institute, Washington, DC 20010, USA
| | | | - Evan Goldstein
- Augusta University Medical College of Georgia, Augusta, GA 30912, USA
| | - Beata Jablonska
- Children’s National Research Institute, Washington, DC 20010, USA
| | | | - Vittorio Gallo
- George Washington University School of Medicine and Health Sciences, Washington, DC 20010, USA
- Children’s National Research Institute, Washington, DC 20010, USA
| | - Robert Freishtat
- Department of Pediatrics, Division of Emergency Medicine, Children’s National Hospital, Washington, DC 20010, USA
- George Washington University School of Medicine and Health Sciences, Washington, DC 20010, USA
- Children’s National Research Institute, Washington, DC 20010, USA
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29
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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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30
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Dai Y, Junho CVC, Schieren L, Wollenhaupt J, Sluimer JC, van der Vorst EPC, Noels H. Cellular metabolism changes in atherosclerosis and the impact of comorbidities. Front Cell Dev Biol 2024; 12:1446964. [PMID: 39188527 PMCID: PMC11345199 DOI: 10.3389/fcell.2024.1446964] [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: 06/10/2024] [Accepted: 07/17/2024] [Indexed: 08/28/2024] Open
Abstract
Cell activation and nutrient dysregulation are common consequences of atherosclerosis and its preceding risk factors, such as hypertension, dyslipidemia, and diabetes. These diseases may also impact cellular metabolism and consequently cell function, and the other way around, altered cellular metabolism can impact disease development and progression through altered cell function. Understanding the contribution of altered cellular metabolism to atherosclerosis and how cellular metabolism may be altered by co-morbidities and atherosclerosis risk factors could support the development of novel strategies to lower the risk of CVD. Therefore, we briefly review disease pathogenesis and the principles of cell metabolic pathways, before detailing changes in cellular metabolism in the context of atherosclerosis and comorbidities. In the hypoxic, inflammatory and hyperlipidemic milieu of the atherosclerotic plaque riddled with oxidative stress, metabolism shifts to increase anaerobic glycolysis, the pentose-phosphate pathway and amino acid use. We elaborate on metabolic changes for macrophages, neutrophils, vascular endothelial cells, vascular smooth muscle cells and lymphocytes in the context of atherosclerosis and its co-morbidities hypertension, dyslipidemia, and diabetes. Since causal relationships of specific key genes in a metabolic pathway can be cell type-specific and comorbidity-dependent, the impact of cell-specific metabolic changes must be thoroughly explored in vivo, with a focus on also systemic effects. When cell-specific treatments become feasible, this information will be crucial for determining the best metabolic intervention to improve atherosclerosis and its interplay with co-morbidities.
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Affiliation(s)
- Yusang Dai
- Institute for Molecular Cardiovascular Research (IMCAR), University Hospital, RWTH Aachen University, Aachen, Germany
- Physical Examination Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Carolina Victoria Cruz Junho
- Institute for Molecular Cardiovascular Research (IMCAR), University Hospital, RWTH Aachen University, Aachen, Germany
| | - Luisa Schieren
- Institute for Molecular Cardiovascular Research (IMCAR), University Hospital, RWTH Aachen University, Aachen, Germany
| | - Julia Wollenhaupt
- Institute for Molecular Cardiovascular Research (IMCAR), University Hospital, RWTH Aachen University, Aachen, Germany
| | - Judith C. Sluimer
- Department of Nephrology and Clinical Immunology, University Hospital RWTH Aachen, Aachen, Germany
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Emiel P. C. van der Vorst
- Institute for Molecular Cardiovascular Research (IMCAR), University Hospital, RWTH Aachen University, Aachen, Germany
- Aachen-Maastricht Institute for Cardiorenal Disease (AMICARE), RWTH Aachen Campus, Aachen, Germany
- Interdisciplinary Centre for Clinical Research (IZKF), RWTH Aachen University, Aachen, Germany
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, Munich, Germany
| | - Heidi Noels
- Institute for Molecular Cardiovascular Research (IMCAR), University Hospital, RWTH Aachen University, Aachen, Germany
- Aachen-Maastricht Institute for Cardiorenal Disease (AMICARE), RWTH Aachen Campus, Aachen, Germany
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
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31
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Kumar R, Kolloli A, Singh P, Shi L, Kupz A, Subbian S. The innate memory response of macrophages to Mycobacterium tuberculosis is shaped by the nature of the antigenic stimuli. Microbiol Spectr 2024; 12:e0047324. [PMID: 38980014 PMCID: PMC11302266 DOI: 10.1128/spectrum.00473-24] [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: 02/21/2024] [Accepted: 06/07/2024] [Indexed: 07/10/2024] Open
Abstract
Innate immune cells, such as macrophages, mount an immune response upon exposure to antigens and pathogens. Emerging evidence shows that macrophages exposed to an antigen can generate a "memory-like" response (a.k.a. trained immunity), which confers a non-specific and enhanced response upon subsequent stimulation with a second antigen/microbe. This trained immunity has been implicated in the enhanced response of macrophages against several invading pathogens. However, the association between the nature of the antigen and the corresponding immune correlate of elicited trained immunity is not fully understood. Similarly, the response of macrophages trained and restimulated with homologous stimulants to subsequent infection by pathogenic Mycobacterium tuberculosis (Mtb) remains unexplored. Here, we report the immune and metabolic profiles of trained immunity in human THP-1-derived macrophages after homologous training and restimulation with BCG, LPS, purified protein Derivative (PPD), heat-killed Mtb strains HN878 (hk-HN), and CDC1551 (hk-CDC). Furthermore, the impact of training on the autophagic and antimicrobial responses of macrophages with or without subsequent infection by clinical Mtb isolates HN878 and CDC1551 was evaluated. Results show that repeated stimulation of macrophages with different antigens displays distinct pro-inflammatory, metabolic, antimicrobial, and autophagy induction profiles. These macrophages also induce a differential antimicrobial response upon infection with clinical Mtb HN878 and CDC1551 isolates. A significantly reduced intracellular bacterial load was noted in the stimulated macrophages, which was augmented by the addition of rapamycin, an autophagy inducer. These observations suggest that the nature of the antigen and the mode of stimulation shape the magnitude and breadth of macrophage innate memory response, which impacts subsequent response to Mtb infection. IMPORTANCE Trained immunity (a.k.a. innate memory response) is a novel concept that has been rapidly emerging as a mechanism underpinning the non-specific immunity of innate immune cells, such as macrophages. However, the association between the nature of the stimuli and the corresponding immune correlate of trained immunity is not fully understood. Similarly, the kinetics of immunological and metabolic characteristics of macrophages upon "training" by the same antigen as primary and secondary stimuli (homologous stimulation) are not fully characterized. Furthermore, the ability of antigens such as purified protein derivative (PPD) and heat-killed-Mtb to induce trained immunity remains unknown. Similarly, the response of macrophages primed and trained by homologous stimulants to subsequent infection by pathogenic Mtb is yet to be reported. In this study, we evaluated the hypothesis that the nature of the stimuli impacts the depth and breadth of trained immunity in macrophages, which differentially affects their response to Mtb infection.
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Affiliation(s)
- Ranjeet Kumar
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, New Jersey, USA
| | - Afsal Kolloli
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, New Jersey, USA
| | - Pooja Singh
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, New Jersey, USA
| | - Lanbo Shi
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, New Jersey, USA
| | - Andreas Kupz
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine (AITHM), James Cook University, Cairns & Townsville, Queensland, Australia
| | - Selvakumar Subbian
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, New Jersey, USA
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32
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Khan H, Bhargava V, Elkins KL. Francisella tularensis Live Vaccine Strain training of murine alveolar and bone marrow-derived macrophages. Microbiol Spectr 2024; 12:e0002824. [PMID: 38940590 PMCID: PMC11302253 DOI: 10.1128/spectrum.00028-24] [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: 01/04/2024] [Accepted: 05/28/2024] [Indexed: 06/29/2024] Open
Abstract
Traditionally, successful vaccines rely on specific adaptive immunity by activating lymphocytes with an attenuated pathogen, or pathogen subunit, to elicit heightened responses upon subsequent exposures. However, recent work with Mycobacterium tuberculosis and other pathogens has identified a role for "trained" monocytes in protection through memory-like but non-specific immunity. Here, we used an in vitro co-culture approach to study the potential role of trained macrophages, including lung alveolar macrophages, in immune responses to the Live Vaccine Strain (LVS) of Francisella tularensis. F. tularensis is an intracellular bacterium that replicates within mammalian macrophages and causes respiratory as well as systemic disease. We vaccinated mice with F. tularensis LVS and then obtained lung alveolar macrophages, or derived macrophages from bone marrow. LVS infected and replicated comparably in both types of macrophages, whether naïve or from LVS-vaccinated mice. LVS-infected macrophages were then co-cultured with either naïve splenocytes, splenocytes from mice vaccinated intradermally, or splenocytes from mice vaccinated intravenously. For the first time, we show that immune (but not naïve) splenocytes controlled bacterial replication within alveolar macrophages, similar to previous results using bone marrow-derived macrophage. However, no differences in control of intramacrophage bacterial replication were found between co-cultures with naïve macrophages or macrophages from LVS-vaccinated mice; furthermore, nitric oxide levels and interferon-gamma production in supernatants were largely comparable across all conditions. Thus, in the context of in vitro co-cultures, the data do not support development of trained macrophages in bone marrow or lungs of mice vaccinated with LVS intradermally or intravenously. IMPORTANCE The discovery of non-specific "trained immunity" in monocytes has generated substantial excitement. However, to date, training has been studied with relatively few microbes (e.g., Mycobacterium bovis Bacille Calmette-Guérin, a live attenuated intracellular bacterium used as a vaccine) and microbial substances (e.g., LPS), and it remains unclear whether training during infection is common. We previously demonstrated that vaccination of mice with Francisella tularensis Live Vaccine Strain (LVS), another live attenuated intracellular bacterium, protected against challenge with the unrelated bacterium Listeria monocytogenes. The present study therefore tested whether LVS vaccination engenders trained macrophages that contributed to this protection. To do so, we used a previous in vitro co-culture approach with murine bone marrow-derived macrophages to expand and study lung alveolar macrophages. We demonstrated that alveolar macrophages can be productively infected and employed to characterize interactions with LVS-immune lymphocytes. However, we find no evidence that either bone marrow-derived or alveolar macrophages are trained by LVS vaccination.
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Affiliation(s)
- Hamda Khan
- Laboratory of Mucosal Pathogens and Cellular Immunology, Division of Bacterial, Parasitic and Allergenic Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, USA
| | - Varunika Bhargava
- Laboratory of Mucosal Pathogens and Cellular Immunology, Division of Bacterial, Parasitic and Allergenic Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, USA
| | - Karen L. Elkins
- Laboratory of Mucosal Pathogens and Cellular Immunology, Division of Bacterial, Parasitic and Allergenic Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, USA
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33
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Waikhom D, Kezhedath J, Nediyirippil Suresh S, Bedekar MK, Varghese T, Prasad Kurcheti P, Kooloth Valappil R. Induction of trained immunity using β-glucan and its protective responses in Nile tilapia, Oreochromis niloticus. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 157:105188. [PMID: 38677664 DOI: 10.1016/j.dci.2024.105188] [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: 03/22/2024] [Revised: 04/20/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024]
Abstract
Emerging and re-emerging diseases in fish cause drastic economic losses in the aquaculture sector. To combat the impact of disease outbreaks and prevent the emergence of infections in culture systems, understanding the advanced strategies for protecting fish against infections is inevitable in fish health research. Therefore, the present study aimed to evaluate the induction of trained immunity and its protective efficacy against Streptococcus agalactiae in tilapia. For this, Nile tilapia and the Tilapia head kidney macrophage primary culture were primed using β-glucan @200 μg/10 g body weight and 10 μg/mL respectively. Expression profiles of the markers of trained immunity and production of metabolites were monitored at different time points, post-priming and training, which depicted enhanced responsiveness. Higher lactate and lactate dehydrogenase (LDH) production in vitro suggests heightened glycolysis induced by priming of the cells using β-glucan. A survival rate of 60% was observed in β-glucan trained fish post challenge with virulent S. agalactiae at an LD50 of 2.6 × 107 cfu/ml, providing valuable insights into promising strategies of trained immunity for combating infections in fish.
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Affiliation(s)
- David Waikhom
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education, Panch Marg, Off Yari Road, Versova, Mumbai, 61, India
| | - Jeena Kezhedath
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education, Panch Marg, Off Yari Road, Versova, Mumbai, 61, India.
| | - Sooraj Nediyirippil Suresh
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education, Panch Marg, Off Yari Road, Versova, Mumbai, 61, India
| | - Megha Kadam Bedekar
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education, Panch Marg, Off Yari Road, Versova, Mumbai, 61, India
| | - Tincy Varghese
- Fish Nutrition, Physiology and Biochemistry Division, ICAR-Central Institute of Fisheries Education, Panch Marg, Off Yari Road, Versova, Mumbai, 61, India
| | - Pani Prasad Kurcheti
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education, Panch Marg, Off Yari Road, Versova, Mumbai, 61, India
| | - Rajendran Kooloth Valappil
- Aquatic Environment and Health Management Division, ICAR-Central Institute of Fisheries Education, Panch Marg, Off Yari Road, Versova, Mumbai, 61, India
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Shim EH, Kim SH, Kim DJ, Jang YS. Complement C5a Receptor Signaling in Macrophages Enhances Trained Immunity Through mTOR Pathway Activation. Immune Netw 2024; 24:e24. [PMID: 39246622 PMCID: PMC11377950 DOI: 10.4110/in.2024.24.e24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 05/28/2024] [Accepted: 05/31/2024] [Indexed: 09/10/2024] Open
Abstract
Complement C5a receptor (C5aR) signaling in immune cells has various functions, inducing inflammatory or anti-inflammatory responses based on the type of ligand present. The Co1 peptide (SFHQLPARSRPLP) has been reported to activate C5aR signaling in dendritic cells. We investigated the effect of C5aR signaling via the Co1 peptide on macrophages. In peritoneal macrophages, the interaction between C5aR and the Co1 peptide activated the mTOR pathway, resulting in the production of pro-inflammatory cytokines. Considering the close associations of mTOR signaling with IL-6 and TNF-α in macrophage training, our findings indicate that the Co1 peptide amplifies β-glucan-induced trained immunity. Overall, this research highlights a previously underappreciated aspect of C5aR signaling in trained immunity, and posits that the Co1 peptide is a potentially effective immunomodulator for enhancing trained immunity.
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Affiliation(s)
- Eun-Hyeon Shim
- Innovative Research and Education Center for Integrated Bioactive Materials and the Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Korea
- Department of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Sae-Hae Kim
- Department of Molecular Biology and The Institute for Molecular Biology and Genetics, Jeonbuk National University, Jeonju 54896, Korea
| | - Doo-Jin Kim
- Department of Medicine, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju 28644, Korea
| | - Yong-Suk Jang
- Innovative Research and Education Center for Integrated Bioactive Materials and the Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Korea
- Department of Molecular Biology and The Institute for Molecular Biology and Genetics, Jeonbuk National University, Jeonju 54896, Korea
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35
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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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36
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Huang Z, Tang Y, Zhang J, Huang J, Cheng R, Guo Y, Kleer CG, Wang Y, Xue L. Hypoxia makes EZH2 inhibitor not easy-advances of crosstalk between HIF and EZH2. LIFE METABOLISM 2024; 3:loae017. [PMID: 38911968 PMCID: PMC11192520 DOI: 10.1093/lifemeta/loae017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Histone methylation plays a crucial role in tumorigenesis. Enhancer of zeste homolog 2 (EZH2) is a histone methyltransferase that regulates chromatin structure and gene expression. EZH2 inhibitors (EZH2is) have been shown to be effective in treating hematologic malignancies, while their effectiveness in solid tumors remains limited. One of the major challenges in the treatment of solid tumors is their hypoxic tumor microenvironment. Hypoxia-inducible factor 1-alpha (HIF-1α) is a key hypoxia responder that interacts with EZH2 to promote tumor progression. Here we discuss the implications of the relationship between EZH2 and hypoxia for expanding the application of EZH2is in solid tumors.
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Affiliation(s)
- Zhanya Huang
- Cancer Center of Peking University Third Hospital, Beijing 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Yuanjun Tang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Jianlin Zhang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Jiaqi Huang
- Cancer Center of Peking University Third Hospital, Beijing 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Rui Cheng
- Cancer Center of Peking University Third Hospital, Beijing 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Yunyun Guo
- Cancer Center of Peking University Third Hospital, Beijing 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Celina G. Kleer
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Yuqing Wang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Lixiang Xue
- Cancer Center of Peking University Third Hospital, Beijing 100191, China
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
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37
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Li Y, Kong E, Ding R, Chu R, Lu J, Deng M, Hua T, Yang M, Wang H, Chen D, Song H, Wei H, Zhang P, Han C, Yuan H. Hyperglycemia-induced Sirt3 downregulation increases microglial aerobic glycolysis and inflammation in diabetic neuropathic pain pathogenesis. CNS Neurosci Ther 2024; 30:e14913. [PMID: 39123294 PMCID: PMC11315676 DOI: 10.1111/cns.14913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/16/2024] [Accepted: 06/17/2024] [Indexed: 08/12/2024] Open
Abstract
BACKGROUND Hyperglycemia-induced neuroinflammation significantly contributes to diabetic neuropathic pain (DNP), but the underlying mechanisms remain unclear. OBJECTIVE To investigate the role of Sirt3, a mitochondrial deacetylase, in hyperglycemia-induced neuroinflammation and DNP and to explore potential therapeutic interventions. METHOD AND RESULTS Here, we found that Sirt3 was downregulated in spinal dorsal horn (SDH) of diabetic mice by RNA-sequencing, which was further confirmed at the mRNA and protein level. Sirt3 deficiency exacerbated hyperglycemia-induced neuroinflammation and DNP by enhancing microglial aerobic glycolysis in vivo and in vitro. Overexpression of Sirt3 in microglia alleviated inflammation by reducing aerobic glycolysis. Mechanistically, high-glucose stimulation activated Akt, which phosphorylates and inactivates FoxO1. The inactivation of FoxO1 diminished the transcription of Sirt3. Besides that, we also found that hyperglycemia induced Sirt3 degradation via the mitophagy-lysosomal pathway. Blocking Akt activation by GSK69093 or metformin rescued the degradation of Sirt3 protein and transcription inhibition of Sirt3 mRNA, which substantially diminished hyperglycemia-induced inflammation. Metformin in vivo treatment alleviated neuroinflammation and diabetic neuropathic pain by rescuing hyperglycemia-induced Sirt3 downregulation. CONCLUSION Hyperglycemia induces metabolic reprogramming and inflammatory activation in microglia through the regulation of Sirt3 transcription and degradation. This novel mechanism identifies Sirt3 as a potential drug target for treating DNP.
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Affiliation(s)
- Yongchang Li
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Erliang Kong
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
- Department of AnesthesiologyThe 988th Hospital of Joint Logistic Support Force of Chinese People's Liberation ArmyZhengzhouHenanChina
| | - Ruifeng Ding
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Ruitong Chu
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Jinfang Lu
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Mengqiu Deng
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Tong Hua
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Mei Yang
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Haowei Wang
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Dashuang Chen
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Honghao Song
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Huawei Wei
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Ping Zhang
- Department of Neurology, Naval Medical Center of PLANaval Medical UniversityShanghaiChina
| | - Chaofeng Han
- Department of Histology and Embryology, Shanghai Key Laboratory of Cell EngineeringNaval Medical UniversityShanghaiChina
- National Key Laboratory of Immunity & InflammationNaval Medical UniversityShanghaiChina
| | - Hongbin Yuan
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
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Yan L, Wang J, Cai X, Liou Y, Shen H, Hao J, Huang C, Luo G, He W. Macrophage plasticity: signaling pathways, tissue repair, and regeneration. MedComm (Beijing) 2024; 5:e658. [PMID: 39092292 PMCID: PMC11292402 DOI: 10.1002/mco2.658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 08/04/2024] Open
Abstract
Macrophages are versatile immune cells with remarkable plasticity, enabling them to adapt to diverse tissue microenvironments and perform various functions. Traditionally categorized into classically activated (M1) and alternatively activated (M2) phenotypes, recent advances have revealed a spectrum of macrophage activation states that extend beyond this dichotomy. The complex interplay of signaling pathways, transcriptional regulators, and epigenetic modifications orchestrates macrophage polarization, allowing them to respond to various stimuli dynamically. Here, we provide a comprehensive overview of the signaling cascades governing macrophage plasticity, focusing on the roles of Toll-like receptors, signal transducer and activator of transcription proteins, nuclear receptors, and microRNAs. We also discuss the emerging concepts of macrophage metabolic reprogramming and trained immunity, contributing to their functional adaptability. Macrophage plasticity plays a pivotal role in tissue repair and regeneration, with macrophages coordinating inflammation, angiogenesis, and matrix remodeling to restore tissue homeostasis. By harnessing the potential of macrophage plasticity, novel therapeutic strategies targeting macrophage polarization could be developed for various diseases, including chronic wounds, fibrotic disorders, and inflammatory conditions. Ultimately, a deeper understanding of the molecular mechanisms underpinning macrophage plasticity will pave the way for innovative regenerative medicine and tissue engineering approaches.
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Affiliation(s)
- Lingfeng Yan
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
| | - Jue Wang
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
| | - Xin Cai
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
| | - Yih‐Cherng Liou
- Department of Biological SciencesFaculty of ScienceNational University of SingaporeSingaporeSingapore
- National University of Singapore (NUS) Graduate School for Integrative Sciences and EngineeringNational University of SingaporeSingaporeSingapore
| | - Han‐Ming Shen
- Faculty of Health SciencesUniversity of MacauMacauChina
| | - Jianlei Hao
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and TreatmentZhuhai Institute of Translational MedicineZhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University)Jinan UniversityZhuhaiGuangdongChina
- The Biomedical Translational Research InstituteFaculty of Medical ScienceJinan UniversityGuangzhouGuangdongChina
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer CenterWest China Hospitaland West China School of Basic Medical Sciences and Forensic MedicineSichuan University, and Collaborative Innovation Center for BiotherapyChengduChina
| | - Gaoxing Luo
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
| | - Weifeng He
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Damage Repair and RegenerationChongqingChina
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Bechtold V, Smolen KK, Burny W, de Angelis SP, Delandre S, Essaghir A, Marchant A, Ndour C, Taton M, van der Most R, Willems F, Didierlaurent AM. Functional and epigenetic changes in monocytes from adults immunized with an AS01-adjuvanted vaccine. Sci Transl Med 2024; 16:eadl3381. [PMID: 39083587 DOI: 10.1126/scitranslmed.adl3381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 03/25/2024] [Accepted: 06/10/2024] [Indexed: 08/02/2024]
Abstract
The adjuvant AS01 plays a key role in the immunogenicity of several approved human vaccines with demonstrated high efficacy. Its adjuvant effect relies on activation of the innate immune system. However, specific effects of AS01-adjuvanted vaccines on innate cell function and epigenetic remodeling, as described for Bacille Calmette-Guérin (BCG) and influenza vaccines, are still unknown. We assessed the long-term functional and epigenetic changes in circulating monocytes and dendritic cells induced by a model vaccine containing hepatitis B surface antigen and AS01 in healthy adults (NCT01777295). The AS01-adjuvanted vaccine, but not an Alum-adjuvanted vaccine, increased the number of circulating monocytes and their expression of human leukocyte antigen (HLA)-DR, which correlated with the magnitude of the memory CD4+ T cell response. Single-cell analyses revealed epigenetic alterations in monocyte and dendritic cell subsets, affecting accessibility of transcription factors involved in cell functions including activator protein-1 (AP-1), GATA, C/EBP, and interferon regulatory factor. The functional changes were characterized by a reduced proinflammatory response to Toll-like receptor activation and an improved response to interferon-γ, a cytokine critical for the adjuvant's mode of action. Epigenetic changes were most evident shortly after the second vaccine dose in CD14+ monocytes, for which accessibility differences of some transcription factors could persist for up to 6 months postvaccination. Together, we show that reprogramming of monocyte subsets occurs after vaccination with an AS01-adjuvanted vaccine, an effect that may contribute to the impact of vaccination beyond antigen-specific protection.
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Affiliation(s)
| | - Kinga K Smolen
- GSK, Rixensart, 1330, Belgium
- Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Faculty of Medicine, Université libre de Bruxelles (ULB), Brussels, 1070, Belgium
| | | | | | | | | | - Arnaud Marchant
- Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Faculty of Medicine, Université libre de Bruxelles (ULB), Brussels, 1070, Belgium
| | - Cheikh Ndour
- Business and Decision Life Sciences c/o GSK, Rixensart, 1330, Belgium
| | - Martin Taton
- Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Faculty of Medicine, Université libre de Bruxelles (ULB), Brussels, 1070, Belgium
| | | | - Fabienne Willems
- Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Faculty of Medicine, Université libre de Bruxelles (ULB), Brussels, 1070, Belgium
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Jacquemin C, El Orch W, Diaz O, Lalande A, Aublin-Gex A, Jacolin F, Toesca J, Si-Tahar M, Mathieu C, Lotteau V, Perrin-Cocon L, Vidalain PO. Pharmacological induction of the hypoxia response pathway in Huh7 hepatoma cells limits proliferation but increases resilience under metabolic stress. Cell Mol Life Sci 2024; 81:320. [PMID: 39078527 PMCID: PMC11335246 DOI: 10.1007/s00018-024-05361-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 06/25/2024] [Accepted: 07/12/2024] [Indexed: 07/31/2024]
Abstract
The hypoxia response pathway enables adaptation to oxygen deprivation. It is mediated by hypoxia-inducible factors (HIF), which promote metabolic reprogramming, erythropoiesis, angiogenesis and tissue remodeling. This led to the successful development of HIF-inducing drugs for treating anemia and some of these molecules are now in clinic. However, elevated levels of HIFs are frequently associated with tumor growth, poor prognosis, and drug resistance in various cancers, including hepatocellular carcinoma (HCC). Consequently, there are concerns regarding the recommendation of HIF-inducing drugs in certain clinical situations. Here, we analyzed the effects of two HIF-inducing drugs, Molidustat and Roxadustat, in the well-characterized HCC cell line Huh7. These drugs increased HIF-1α and HIF-2α protein levels which both participate in inducing hypoxia response genes such as BNIP3, SERPINE1, LDHA or EPO. Combined transcriptomics, proteomics and metabolomics showed that Molidustat increased the expression of glycolytic enzymes, while the mitochondrial network was fragmented and cellular respiration decreased. This metabolic remodeling was associated with a reduced proliferation and a lower demand for pyrimidine supply, but an increased ability of cells to convert pyruvate to lactate. This was accompanied by a higher resistance to the inhibition of mitochondrial respiration by antimycin A, a phenotype confirmed in Roxadustat-treated Huh7 cells and Molidustat-treated hepatoblastoma cells (Huh6 and HepG2). Overall, this study shows that HIF-inducing drugs increase the metabolic resilience of liver cancer cells to metabolic stressors, arguing for careful monitoring of patients treated with HIF-inducing drugs, especially when they are at risk of liver cancer.
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Affiliation(s)
- Clémence Jacquemin
- CIRI, Centre International de Recherche en Infectiologie, Team Viral Infection, Metabolism and Immunity, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France
| | - Walid El Orch
- CIRI, Centre International de Recherche en Infectiologie, Team Viral Infection, Metabolism and Immunity, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France
| | - Olivier Diaz
- CIRI, Centre International de Recherche en Infectiologie, Team Viral Infection, Metabolism and Immunity, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France
| | - Alexandre Lalande
- CIRI, Centre International de Recherche en Infectiologie, Team NeuroInvasion, Tropism and Viral Encephalitis, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France
| | - Anne Aublin-Gex
- CIRI, Centre International de Recherche en Infectiologie, Team Viral Infection, Metabolism and Immunity, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France
| | - Florentine Jacolin
- CIRI, Centre International de Recherche en Infectiologie, Team Viral Infection, Metabolism and Immunity, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France
| | - Johan Toesca
- CIRI, Centre International de Recherche en Infectiologie, Team Viral Infection, Metabolism and Immunity, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France
| | - Mustapha Si-Tahar
- Centre d'Etude des Pathologies Respiratoires (CEPR), Faculty of Medecine, Inserm, U1100, 37000, Tours, France
| | - Cyrille Mathieu
- CIRI, Centre International de Recherche en Infectiologie, Team NeuroInvasion, Tropism and Viral Encephalitis, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France
| | - Vincent Lotteau
- CIRI, Centre International de Recherche en Infectiologie, Team Viral Infection, Metabolism and Immunity, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France
- Laboratoire P4 INSERM-Jean Mérieux, Lyon, France
| | - Laure Perrin-Cocon
- CIRI, Centre International de Recherche en Infectiologie, Team Viral Infection, Metabolism and Immunity, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France.
| | - Pierre-Olivier Vidalain
- CIRI, Centre International de Recherche en Infectiologie, Team Viral Infection, Metabolism and Immunity, Univ Lyon, Inserm, U1111, CNRS, UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007, Lyon, France.
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Shang C, Su Y, Ma J, Li Z, Wang P, Ma H, Song J, Zhang Z. Huanshaodan regulates microglial glucose metabolism reprogramming to alleviate neuroinflammation in AD mice through mTOR/HIF-1α signaling pathway. Front Pharmacol 2024; 15:1434568. [PMID: 39130642 PMCID: PMC11310104 DOI: 10.3389/fphar.2024.1434568] [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: 05/18/2024] [Accepted: 07/10/2024] [Indexed: 08/13/2024] Open
Abstract
Abnormal glucose metabolism in microglial is closely associated with Alzheimer's disease (AD). Reprogramming of microglial glucose metabolism is centered on regulating the way in which microglial metabolize glucose to alter microglial function. Therefore, reprogramming microglial glucose metabolism is considered as a therapeutic strategy for AD. Huanshaodan (HSD) is a Chinese herbal compound which shows significant efficacy in treating AD, however, the precise mechanism by which HSD treats AD remains unclear. This study is aim to investigate whether HSD exerts anti-AD effects by regulating the metabolic reprogramming of microglial through the mTOR/HIF-1α signaling pathway. SAMP8 mice and BV2 cells were used to explore the alleviative effect of HSD on AD and the molecular mechanism in vivo and in vitro. The pharmacodynamic effects of HSD was evaluated by behavioral tests. The pathological deposition of Aβ in brain of mice was detected by immunohistochemistry. ELISA method was used to measure the activity of HK2 and the expression of PKM2, IL-6 and TNF-α in hippocampus and cortex tissues of mice. Meanwhile, proteins levels of p-mTOR, mTOR, HIF-1α, CD86, Arg1 and IL-1β were detected by Western-blot. LPS-induced BV2 cells were treated with HSD-containing serum. The analysis of the expression profiles of the CD86 and CD206 markers by flow cytometry allows us to distinguish the BV2 polarization. Glucose, lactic acid, ATP, IL-6 and TNF-α levels, as well as lactate dehydrogenase and pyruvate dehydrogenase activities were evaluated in the BV2. Western-blot analysis was employed to detect mTOR, p-mTOR, HIF-1α and IL-1β levels in BV2. And the mTOR agonist MHY1485 (MHY) was chosen to reverse validate. In this study, it is found that HSD improved cognitive impairment in SAMP8 mice and reduced Aβ deposition, suppressed the levels of glycolysis and neuroinflammation in mice. In LPS-induced BV2 cells, HSD also regulated glycolysis and neuroinflammation, and suppressed the mTOR/HIF-1α signaling pathway. More importantly, these effects were reversed by MHY. It is demonstrated that HSD regulated microglial glucose metabolism reprogramming by inhibiting the mTOR/HIF-1α signaling pathway, alleviated neuroinflammation, and exerted anti-AD effects. This study provided scientific evidence for the clinical application of HSD for treating AD.
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Affiliation(s)
- Congcong Shang
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Yunfang Su
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan University of Chinese Medicine, Zhengzhou, Henan, China
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Jinlian Ma
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Zhonghua Li
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Pan Wang
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Huifen Ma
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Junying Song
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Zhenqiang Zhang
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan University of Chinese Medicine, Zhengzhou, Henan, China
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Ting KKY. Revisiting the role of hypoxia-inducible factors and nuclear factor erythroid 2-related factor 2 in regulating macrophage inflammation and metabolism. Front Cell Infect Microbiol 2024; 14:1403915. [PMID: 39119289 PMCID: PMC11306205 DOI: 10.3389/fcimb.2024.1403915] [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: 03/20/2024] [Accepted: 07/11/2024] [Indexed: 08/10/2024] Open
Abstract
The recent birth of the immunometabolism field has comprehensively demonstrated how the rewiring of intracellular metabolism is critical for supporting the effector functions of many immune cell types, such as myeloid cells. Among all, the transcriptional regulation mediated by Hypoxia-Inducible Factors (HIFs) and Nuclear factor erythroid 2-related factor 2 (NRF2) have been consistently shown to play critical roles in regulating the glycolytic metabolism, redox homeostasis and inflammatory responses of macrophages (Mφs). Although both of these transcription factors were first discovered back in the 1990s, new advances in understanding their function and regulations have been continuously made in the context of immunometabolism. Therefore, this review attempts to summarize the traditionally and newly identified functions of these transcription factors, including their roles in orchestrating the key events that take place during glycolytic reprogramming in activated myeloid cells, as well as their roles in mediating Mφ inflammatory responses in various bacterial infection models.
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Affiliation(s)
- Kenneth K. Y. Ting
- Department of Immunology, University of Toronto, Toronto, ON, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
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43
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Ferreira AV, Domínguez-Andrés J, Merlo Pich LM, Joosten LAB, Netea MG. Metabolic Regulation in the Induction of Trained Immunity. Semin Immunopathol 2024; 46:7. [PMID: 39060761 PMCID: PMC11282170 DOI: 10.1007/s00281-024-01015-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 06/02/2024] [Indexed: 07/28/2024]
Abstract
The innate immune system exhibits features of memory, termed trained immunity, which promote faster and more robust responsiveness to heterologous challenges. Innate immune memory is sustained through epigenetic modifications, affecting gene accessibility, and promoting a tailored gene transcription for an enhanced immune response. Alterations in the epigenetic landscape are intertwined with metabolic rewiring. Here, we review the metabolic pathways that underscore the induction and maintenance of trained immunity, including glycolysis, oxidative phosphorylation, the tricarboxylic acid cycle, and amino acid and lipid metabolism. The intricate interplay of these pathways is pivotal for establishing innate immune memory in distinct cellular compartments. We explore in particular the case of resident lung alveolar macrophages. We propose that leveraging the memory of the innate immune system may present therapeutic potential. Specifically, targeting the metabolic programs of innate immune cells is an emerging strategy for clinical interventions, either to boost immune responses in immunosuppressed conditions or to mitigate maladaptive activation in hyperinflammatory diseases.
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Affiliation(s)
- Anaisa V Ferreira
- Department of Internal Medicine and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Center, 6500HB, Nijmegen, The Netherlands.
| | - Jorge Domínguez-Andrés
- Department of Internal Medicine and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Center, 6500HB, Nijmegen, The Netherlands
| | - Laura M Merlo Pich
- Department of Internal Medicine and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Center, 6500HB, Nijmegen, The Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Center, 6500HB, Nijmegen, The Netherlands
- Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca-Napoca, Romania
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Center, 6500HB, Nijmegen, The Netherlands
- Department for Immunology and Metabolism, Life and Medical Sciences Institute (LIMES), University of Bonn, 53115, Bonn, Germany
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Tao B, Gong W, Xu C, Ma Z, Mei J, Chen M. The relationship between hypoxia and Alzheimer's disease: an updated review. Front Aging Neurosci 2024; 16:1402774. [PMID: 39086755 PMCID: PMC11288848 DOI: 10.3389/fnagi.2024.1402774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 07/04/2024] [Indexed: 08/02/2024] Open
Abstract
Alzheimer's disease (AD) is one of the most common neurodegenerative diseases, and the most prevalent form of dementia. The main hallmarks for the diagnosis of AD are extracellular amyloid-beta (Aβ) plaque deposition and intracellular accumulation of highly hyperphosphorylated Tau protein as neurofibrillary tangles. The brain consumes more oxygen than any other organs, so it is more easily to be affected by hypoxia. Hypoxia has long been recognized as one of the possible causes of AD and other neurodegenerative diseases, but the exact mechanism has not been clarified. In this review, we will elucidate the connection between hypoxia-inducible factors-1α and AD, including its contribution to AD and its possible protective effects. Additionally, we will discuss the relationship between oxidative stress and AD as evidence show that oxidative stress acts on AD-related pathogenic factors such as mitochondrial dysfunction, Aβ deposition, inflammation, etc. Currently, there is no cure for AD. Given the close association between hypoxia, oxidative stress, and AD, along with current research on the protective effects of antioxidants against AD, we speculate that antioxidants could be a potential therapeutic approach for AD and worth further study.
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Affiliation(s)
- Borui Tao
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- The First Clinical Medical College, Anhui Medical University, Hefei, China
| | - Wei Gong
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chengyuan Xu
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Zhihui Ma
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Jinyu Mei
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ming Chen
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
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Knight HR, Ketter E, Ung T, Weiss A, Ajit J, Chen Q, Shen J, Ip KM, Chiang CY, Barreiro L, Esser-Kahn A. High-throughput screen identifies non inflammatory small molecule inducers of trained immunity. Proc Natl Acad Sci U S A 2024; 121:e2400413121. [PMID: 38976741 PMCID: PMC11260140 DOI: 10.1073/pnas.2400413121] [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: 01/09/2024] [Accepted: 05/29/2024] [Indexed: 07/10/2024] Open
Abstract
Trained immunity is characterized by epigenetic and metabolic reprogramming in response to specific stimuli. This rewiring can result in increased cytokine and effector responses to pathogenic challenges, providing nonspecific protection against disease. It may also improve immune responses to established immunotherapeutics and vaccines. Despite its promise for next-generation therapeutic design, most current understanding and experimentation is conducted with complex and heterogeneous biologically derived molecules, such as β-glucan or the Bacillus Calmette-Guérin (BCG) vaccine. This limited collection of training compounds also limits the study of the genes most involved in training responses as each molecule has both training and nontraining effects. Small molecules with tunable pharmacokinetics and delivery modalities would both assist in the study of trained immunity and its future applications. To identify small molecule inducers of trained immunity, we screened a library of 2,000 drugs and drug-like compounds. Identification of well-defined compounds can improve our understanding of innate immune memory and broaden the scope of its clinical applications. We identified over two dozen small molecules in several chemical classes that induce a training phenotype in the absence of initial immune activation-a current limitation of reported inducers of training. A surprising result was the identification of glucocorticoids, traditionally considered immunosuppressive, providing an unprecedented link between glucocorticoids and trained innate immunity. We chose seven of these top candidates to characterize and establish training activity in vivo. In this work, we expand the number of compounds known to induce trained immunity, creating alternative avenues for studying and applying innate immune training.
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Affiliation(s)
- Hannah Riley Knight
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
| | - Ellen Ketter
- Biological Sciences Division, University of Chicago, Chicago, IL60637
| | - Trevor Ung
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
| | - Adam Weiss
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
| | - Jainu Ajit
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
| | - Qing Chen
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
| | - Jingjing Shen
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
| | - Ka Man Ip
- Biological Sciences Division, University of Chicago, Chicago, IL60637
| | - Chun-yi Chiang
- Biological Sciences Division, University of Chicago, Chicago, IL60637
| | - Luis Barreiro
- Biological Sciences Division, University of Chicago, Chicago, IL60637
| | - Aaron Esser-Kahn
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
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Lu Y, Tang X, Wang W, Yang J, Wang S. The role of deacetylase SIRT1 in allergic diseases. Front Immunol 2024; 15:1422541. [PMID: 39081309 PMCID: PMC11286408 DOI: 10.3389/fimmu.2024.1422541] [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: 04/24/2024] [Accepted: 07/02/2024] [Indexed: 08/02/2024] Open
Abstract
The silent information regulator sirtuin 1 (SIRT1) protein is an NAD+-dependent class-III lysine deacetylase that serves as an important post-transcriptional modifier targeting lysine acetylation sites to mediate deacetylation modifications of histones and non-histone proteins. SIRT1 has been reported to be involved in several physiological or pathological processes such as aging, inflammation, immune responses, oxidative stress and allergic diseases. In this review, we summarized the regulatory roles of SIRT1 during allergic disorder progression. Furthermore, we highlight the therapeutic effects of targeting SIRT1 in allergic diseases.
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Affiliation(s)
- Yun Lu
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xinyi Tang
- Department of Laboratory Medicine, Affiliated People’s Hospital, Jiangsu University, Zhenjiang, China
| | - Wenxin Wang
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jun Yang
- Department of Laboratory Medicine, Affiliated People’s Hospital, Jiangsu University, Zhenjiang, China
| | - Shengjun Wang
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- Department of Laboratory Medicine, Affiliated People’s Hospital, Jiangsu University, Zhenjiang, China
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Sui Y, Berzofsky JA. Trained immunity inducers in cancer immunotherapy. Front Immunol 2024; 15:1427443. [PMID: 39081326 PMCID: PMC11286386 DOI: 10.3389/fimmu.2024.1427443] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 06/28/2024] [Indexed: 08/02/2024] Open
Abstract
While most of the cancer immunotherapy strategies engage adaptive immunity, especially tumor-associated T cells, the small fraction of responding patients and types of cancers amenable, and the possibility of severe adverse effects limit its usage. More effective and general interventions are urgently needed. Recently, a de facto innate immune memory, termed 'trained immunity', has become a new research focal point, and promises to be a powerful tool for achieving long-term therapeutic benefits against cancers. Trained immunity-inducing agents such as BCG and fungal glucan have been shown to be able to avert the suppressive tumor microenvironment (TME), enhance T cell responses, and eventually lead to tumor regression. Here, we review the current understating of trained immunity induction and highlight the critical roles of emergency granulopoiesis, interferon γ and tissue-specific induction. Preclinical and clinical studies that have exploited trained immunity inducers for cancer immunotherapy are summarized, and repurposed trained immunity inducers from other fields are proposed. We also outline the challenges and opportunities for trained immunity in future cancer immunotherapies. We envisage that more effective cancer vaccines will combine the induction of trained immunity with T cell therapies.
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Affiliation(s)
- Yongjun Sui
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, United States
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Méndez-López TT, Carrero JC, Lanz-Mendoza H, Ochoa-Zarzosa A, Mukherjee K, Contreras-Garduño J. Metabolism and immune memory in invertebrates: are they dissociated? Front Immunol 2024; 15:1379471. [PMID: 39055712 PMCID: PMC11269087 DOI: 10.3389/fimmu.2024.1379471] [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: 01/31/2024] [Accepted: 06/18/2024] [Indexed: 07/27/2024] Open
Abstract
Since the discovery of specific immune memory in invertebrates, researchers have investigated its immune response to diverse microbial and environmental stimuli. Nevertheless, the extent of the immune system's interaction with metabolism, remains relatively enigmatic. In this mini review, we propose a comprehensive investigation into the intricate interplay between metabolism and specific immune memory. Our hypothesis is that cellular endocycles and epigenetic modifications play pivotal roles in shaping this relationship. Furthermore, we underscore the importance of the crosstalk between metabolism and specific immune memory for understanding the evolutionary costs. By evaluating these costs, we can gain deeper insights into the adaptive strategies employed by invertebrates in response to pathogenic challenges. Lastly, we outline future research directions aimed at unraveling the crosstalk between metabolism and specific immune memory. These avenues of inquiry promise to illuminate fundamental principles governing host-pathogen interactions and evolutionary trade-offs, thus advancing our understanding of invertebrate immunology.
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Affiliation(s)
- Texca T. Méndez-López
- Posgrado en Ciencias Biológicas, Escuela Nacional de Estudios Superiores, Unidad Morelia, Universidad Nacional Autónoma de México, Morelia, Mexico
| | - Julio César Carrero
- Departmento de Immunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Humberto Lanz-Mendoza
- Instituto Nacional de Salud Pública, Departamento de Enfermedades Infecciosas, Cuernavaca, Mexico
| | - Alejandra Ochoa-Zarzosa
- Centro Multidisciplinario de Estudios en Biotecnología, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - Krishnendu Mukherjee
- Institute of Hygiene, University Hospital Müenster, University of Münster, Münster, Germany
| | - Jorge Contreras-Garduño
- Institute for Evolution and Biodiversity, University of Münster, Münster, Germany
- Escuela Nacional de Estudios Superiores, unidad Morelia, Universidad Nacional Autónoma de México, Morelia, Mexico
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Zheng DC, Hu JQ, Mai CT, Huang L, Zhou H, Yu LL, Xie Y. Liver X receptor inverse agonist SR9243 attenuates rheumatoid arthritis via modulating glycolytic metabolism of macrophages. Acta Pharmacol Sin 2024:10.1038/s41401-024-01315-7. [PMID: 38987388 DOI: 10.1038/s41401-024-01315-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 05/15/2024] [Indexed: 07/12/2024] Open
Abstract
Liver X receptors (LXRs) which link lipid metabolism and inflammation, were overexpressed in experimental rheumatoid arthritis (RA) rats as observed in our previous studies, while suppression of LXRα by silybin ameliorates arthritis and abnormal lipid metabolism. However, the role of LXRs in RA remains undefined. In this study, we investigated the inhibition role of LXRs in the polarization and activation of M1 macrophage by using a special LXRs inverse agonist SR9243, which led to ameliorating the progression of adjuvant-induced arthritis (AIA) in rats. Mechanistically, SR9243 disrupted the LPS/IFN-γ-induced Warburg effect in M1 macrophages, while glycolysis inhibitor 2-DG attenuated the inhibition effect of SR9243 on M1 polarization and the cytokines expression of M1 macrophages including iNOS, TNF-α, and IL-6 in vitro. Furthermore, SR9243 downregulated key glycolytic enzymes, including LDH-A, HK2, G6PD, GLUT1, and HIF-1α in M1 macrophages, which is mediated by increased phosphorylation of AMPK (Thr172) and reduced downstream phosphorylation of mTOR (Ser2448). Importantly, gene silencing of LXRs compromises the inhibition effect of SR9243 on M1 macrophage polarization and activation. Collectively, for the first time, our findings suggest that the LXR inverse agonist SR9243 mitigates adjuvant-induced rheumatoid arthritis and protects against bone erosion by inhibiting M1 macrophage polarization and activation through modulation of glycolytic metabolism via the AMPK/mTOR/HIF-1α pathway.
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Affiliation(s)
- De-Chong Zheng
- State Key Laboratory of Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Jia-Qin Hu
- State Key Laboratory of Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Chu-Tian Mai
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Li Huang
- State Key Laboratory of Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Hua Zhou
- State Key Laboratory of Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Li-Li Yu
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China.
| | - Ying Xie
- State Key Laboratory of Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
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50
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Kim HY, Kang YJ, Kim DH, Jang J, Lee SJ, Kim G, Koh HB, Ko YE, Shin HM, Lee H, Yoo TH, Lee WW. Uremic toxin indoxyl sulfate induces trained immunity via the AhR-dependent arachidonic acid pathway in end-stage renal disease (ESRD). eLife 2024; 12:RP87316. [PMID: 38980302 PMCID: PMC11233136 DOI: 10.7554/elife.87316] [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: 07/10/2024] Open
Abstract
Trained immunity is the long-term functional reprogramming of innate immune cells, which results in altered responses toward a secondary challenge. Despite indoxyl sulfate (IS) being a potent stimulus associated with chronic kidney disease (CKD)-related inflammation, its impact on trained immunity has not been explored. Here, we demonstrate that IS induces trained immunity in monocytes via epigenetic and metabolic reprogramming, resulting in augmented cytokine production. Mechanistically, the aryl hydrocarbon receptor (AhR) contributes to IS-trained immunity by enhancing the expression of arachidonic acid (AA) metabolism-related genes such as arachidonate 5-lipoxygenase (ALOX5) and ALOX5 activating protein (ALOX5AP). Inhibition of AhR during IS training suppresses the induction of IS-trained immunity. Monocytes from end-stage renal disease (ESRD) patients have increased ALOX5 expression and after 6 days training, they exhibit enhanced TNF-α and IL-6 production to lipopolysaccharide (LPS). Furthermore, healthy control-derived monocytes trained with uremic sera from ESRD patients exhibit increased production of TNF-α and IL-6. Consistently, IS-trained mice and their splenic myeloid cells had increased production of TNF-α after in vivo and ex vivo LPS stimulation compared to that of control mice. These results provide insight into the role of IS in the induction of trained immunity, which is critical during inflammatory immune responses in CKD patients.
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Affiliation(s)
- Hee Young Kim
- Department of Microbiology and Immunology, Seoul National University College of MedicineSeoulRepublic of Korea
- Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul National University College of MedicineSeoulRepublic of Korea
| | - Yeon Jun Kang
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and BK21Plus Biomedical Science Project, Seoul National University College of MedicineSeoulRepublic of Korea
| | - Dong Hyun Kim
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and BK21Plus Biomedical Science Project, Seoul National University College of MedicineSeoulRepublic of Korea
| | - Jiyeon Jang
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and BK21Plus Biomedical Science Project, Seoul National University College of MedicineSeoulRepublic of Korea
| | - Su Jeong Lee
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and BK21Plus Biomedical Science Project, Seoul National University College of MedicineSeoulRepublic of Korea
| | - Gwanghun Kim
- Department of Biomedical Sciences, College of Medicine and BK21Plus Biomedical Science Project, Seoul National University College of MedicineSeoulRepublic of Korea
| | - Hee Byung Koh
- Department of Internal Medicine, College of Medicine, Yonsei UniversitySeoulRepublic of Korea
| | - Ye Eun Ko
- Department of Internal Medicine, College of Medicine, Yonsei UniversitySeoulRepublic of Korea
| | - Hyun Mu Shin
- Department of Biomedical Sciences, College of Medicine and BK21Plus Biomedical Science Project, Seoul National University College of MedicineSeoulRepublic of Korea
- Wide River Institute of Immunology, Seoul National UniversityHongcheonRepublic of Korea
| | - Hajeong Lee
- Division of Nephrology, Department of Internal Medicine, Seoul National University HospitalSeoulRepublic of Korea
| | - Tae-Hyun Yoo
- Division of Nephrology, Department of Internal Medicine, Yonsei University College of MedicineSeoulRepublic of Korea
| | - Won-Woo Lee
- Department of Microbiology and Immunology, Seoul National University College of MedicineSeoulRepublic of Korea
- Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul National University College of MedicineSeoulRepublic of Korea
- Laboratory of Autoimmunity and Inflammation (LAI), Department of Biomedical Sciences, and BK21Plus Biomedical Science Project, Seoul National University College of MedicineSeoulRepublic of Korea
- Seoul National University Cancer Research Institute; Ischemic/Hypoxic Disease Institute, Seoul National University Medical Research Center, Seoul National University Hospital Biomedical Research InstituteSeoulRepublic of Korea
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