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Zhu D, Chen F, Qiang H, Qi H. SPA inhibits hBMSC osteogenic differentiation and M1 macrophage polarization by suppressing SETD2 in acute suppurative osteomyelitis. Sci Rep 2024; 14:12728. [PMID: 38830934 PMCID: PMC11148074 DOI: 10.1038/s41598-024-63219-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 05/27/2024] [Indexed: 06/05/2024] Open
Abstract
To clarify the impact of SETD2 on macrophage function in pediatric patients with acute suppurative osteomyelitis and to elucidate the precise underlying mechanism. To gain insights into the potential functions of SETD2, a comprehensive study was conducted utilizing a co-culture model of human bone mesenchymal stem cells (hBMSCs) and bone marrow-derived macrophages (THP-1). A range of techniques were employed, including quantitative polymerase chain reaction, western blotting, ELISA, alkaline phosphatase activity assays, alizarin red S staining, luciferase reporter gene assays, and chromatin immunoprecipitation, to unravel the intricate interactions and molecular mechanisms involving SETD2 in this system. It was observed that SETD2 expression was reduced in THP-1 cells stimulated by staphylococcal protein A (SPA). Furthermore, the downregulation of SETD2 resulted in elevated M1 macrophage polarization and glycolysis, effects that were mitigated by SPA stimulation. Notably, SPA-stimulated THP-1 cells exhibited an increase in HIF-1α expression, which exhibited an inverse correlation with SETD2 levels. Moreover, it was discovered that SETD2 functioned as a catalyst for H3K36me3 and bound to the HIF-1α gene, which, in turn, regulated HIF-1α expression. Furthermore, the suppression of HIF-1α abrogated the consequences of SETD2 downregulation on glycolysis and M1 macrophage polarization. Lastly, the study demonstrated that M1 macrophage polarization serves as a mediator for BMP4's inhibitory effect on osteogenic differentiation of hBMSCs. This research has uncovered a previously unknown role of SETD2 in macrophages during osteomyelitis, revealing its significance in the pathogenesis of this condition. These findings suggest SETD2 as a novel target for the treatment of osteomyelitis.
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Affiliation(s)
- Dongsheng Zhu
- Department of Pediatric Surgery, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu Province, China.
| | - Feng Chen
- Department of Pediatric, Luodian Hospital, Shanghai, China
| | - Hongjia Qiang
- Department of Pediatric Surgery, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu Province, China.
| | - Han Qi
- Department of Emergency Surgery, The Second People's Hospital of , Lianyungang, Jiangsu Province, China.
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2
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Chen Y, Zhang P, Han F, Zhou Y, Wei J, Wang C, Song M, Lin S, Xu Y, Chen X. MiR-106a-5p targets PFKFB3 and improves sepsis through regulating macrophage pyroptosis and inflammatory response. J Biol Chem 2024; 300:107334. [PMID: 38705396 PMCID: PMC11190718 DOI: 10.1016/j.jbc.2024.107334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 05/07/2024] Open
Abstract
The enzyme 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase isoform 3 (PFKFB3) is a critical regulator of glycolysis and plays a key role in modulating the inflammatory response, thereby contributing to the development of inflammatory diseases such as sepsis. Despite its importance, the development of strategies to target PFKFB3 in the context of sepsis remains challenging. In this study, we employed a miRNA-based approach to decrease PFKFB3 expression. Through multiple meta-analyses, we observed a downregulation of miR-106a-5p expression and an upregulation of PFKFB3 expression in clinical sepsis samples. These changes were also confirmed in blood monocytes from patients with early sepsis and from a mouse model of lipopolysaccharide (LPS)-induced sepsis. Overexpression of miR-106a-5p significantly decreased the LPS-induced increase in glycolytic capacity, inflammatory response, and pyroptosis in macrophages. Mechanistically, we identified PFKFB3 as a direct target protein of miR-106a-5p and demonstrated its essential role in LPS-induced pyroptosis and inflammatory response in macrophages. Furthermore, treatment with agomir-miR-106a-5p conferred a protective effect in an LPS mouse model of sepsis, but this effect was attenuated in myeloid-specific Pfkfb3 KO mice. These findings indicate that miR-106a-5p inhibits macrophage pyroptosis and inflammatory response in sepsis by regulating PFKFB3-mediated glucose metabolism, representing a potential therapeutic option for the treatment of sepsis.
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Affiliation(s)
- Yixin Chen
- Department of Emergency, the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China; School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Ping Zhang
- Department of Emergency, the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Fangwei Han
- School of Public Health, UNT Health Science Center, Fort Worth, Texas, USA
| | - Yanying Zhou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Juexian Wei
- Department of Emergency, the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Cailing Wang
- School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Mingchuan Song
- School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Shaopeng Lin
- Department of Emergency, the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yiming Xu
- School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China.
| | - Xiaohui Chen
- Department of Emergency, the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
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3
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Rehill AM, Leon G, McCluskey S, Schoen I, Hernandez-Santana Y, Annett S, Klavina P, Robson T, Curtis AM, Renné T, Hussey S, O'Donnell JS, Walsh PT, Preston RJS. Glycolytic reprogramming fuels myeloid cell-driven hypercoagulability. J Thromb Haemost 2024; 22:394-409. [PMID: 37865288 DOI: 10.1016/j.jtha.2023.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 10/06/2023] [Accepted: 10/06/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND Myeloid cell metabolic reprogramming is a hallmark of inflammatory disease; however, its role in inflammation-induced hypercoagulability is poorly understood. OBJECTIVES We aimed to evaluate the role of inflammation-associated metabolic reprogramming in regulating blood coagulation. METHODS We used novel myeloid cell-based global hemostasis assays and murine models of immunometabolic disease. RESULTS Glycolysis was essential for enhanced activated myeloid cell tissue factor expression and decryption, driving increased cell-dependent thrombin generation in response to inflammatory challenge. Similarly, inhibition of glycolysis enhanced activated macrophage fibrinolytic activity through reduced plasminogen activator inhibitor 1 activity. Macrophage polarization or activation markedly increased endothelial protein C receptor (EPCR) expression on monocytes and macrophages, leading to increased myeloid cell-dependent protein C activation. Importantly, inflammation-dependent EPCR expression on tissue-resident macrophages was also observed in vivo. Adipose tissue macrophages from obese mice fed a high-fat diet exhibited significantly enhanced EPCR expression and activated protein C generation compared with macrophages isolated from the adipose tissue of healthy mice. Similarly, the induction of colitis in mice prompted infiltration of EPCR+ innate myeloid cells within inflamed colonic tissue that were absent from the intestinal tissue of healthy mice. CONCLUSION Collectively, this study identifies immunometabolic regulation of myeloid cell hypercoagulability, opening new therapeutic possibilities for targeted mitigation of thromboinflammatory disease.
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Affiliation(s)
- Aisling M Rehill
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland. https://twitter.com/aislingrehill
| | - Gemma Leon
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland
| | - Sean McCluskey
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland
| | - Ingmar Schoen
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Yasmina Hernandez-Santana
- National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland; Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Ireland
| | - Stephanie Annett
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Paula Klavina
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Tracy Robson
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Annie M Curtis
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Thomas Renné
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Seamus Hussey
- National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland; Department of Paediatrics, University College Dublin and Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - James S O'Donnell
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Patrick T Walsh
- National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland; Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Ireland
| | - Roger J S Preston
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland.
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4
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Sun L, Wang X, Guan S, Chi L, Liang M, Lu X, Luo T. Inhibition of voltage-gated Hv1 alleviates LPS-induced neuroinflammation via regulation of microglial metabolic reprogramming. Int Immunopharmacol 2024; 127:111361. [PMID: 38145600 DOI: 10.1016/j.intimp.2023.111361] [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: 07/04/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 12/27/2023]
Abstract
A growing body of evidence highlights the crucial role of metabolic reprogramming in activated immune cells, significantly contributing to both the initiation and progression of neuroinflammation and neurodegenerative diseases. The voltage-gated H channel (Hv1) has been reported to be involved in microglial activation and acts as a key driver of neuroinflammation. This study aimed to explore how Hv1-mediated metabolic reprogramming contributes to neuroinflammation and to assess the therapeutic potential of the Hv1 inhibitor 2-GBI in a model of lipopolysaccharide (LPS)-induced neuroinflammation. We investigated the influence of 2-GBI on the generation of ROS, metabolic reprogramming, and pro-inflammatory mediator production in vitro and examined the therapeutic effect of 2-GBI on microglial activation and hippocampal neuroinflammation in vivo. The results indicated that 2-GBI attenuated the LPS-induced pro-inflammatory response and aerobic glycolysis in microglia, specifically mitigating HIF1α-mediated upregulation of glycolysis. 2-GBI exerted a protective effect against LPS-induced neuroinflammation through HIF1α pathway-regulated aerobic glycolysis. Using a transwell coculture system, we demonstrated that 2-GBI reversed PC12 cell death caused by BV2-mediated neuroinflammation. In vivo experiments further suggested that 2-GBI mitigated neuroinflammatory processes and cognitive dysfunction via microglial metabolic reprogramming. Collectively, our results highlight the potential of Hv1 inhibition as a therapeutic strategy for alleviating LPS-induced neuroinflammation by modulating microglial metabolic reprogramming.
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Affiliation(s)
- Lingbin Sun
- Department of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
| | - Xihua Wang
- Department of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
| | - Shuyuan Guan
- Department of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
| | - Laiting Chi
- Department of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
| | - Mingjin Liang
- Department of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
| | - Xiao Lu
- Department of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China
| | - Tao Luo
- Department of Anesthesiology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518000, China.
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5
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Meng Y, Kong KW, Chang YQ, Deng XM, Yang T. Histone methyltransferase SETD2 inhibits M1 macrophage polarization and glycolysis by suppressing HIF-1α in sepsis-induced acute lung injury. Med Microbiol Immunol 2023; 212:369-379. [PMID: 37658121 DOI: 10.1007/s00430-023-00778-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 08/18/2023] [Indexed: 09/03/2023]
Abstract
Sepsis is a severe syndrome caused by the imbalance of the host response to infection, accompanied by multiple organ damage, especially acute lung injury. SET Domain-Containing 2 (SETD2) is a methyltransferase catalyzing H3 lysine 36 trimethylation (H3K36me3) that regulates multiple biological processes. This study focused on explicating the action of SETD2 on macrophage function in sepsis and the precise mechanism involved. Enzyme-linked immunosorbent assay, real-time quantitative polymerase chain reaction (RT-qPCR), and Western blotting were used to determine expression. Luciferase reporter assay and chromatin immunoprecipitation assay were conducted to detect the binding of SETD2 or H3K36me3 with the hypoxia-inducible factor 1, alpha subunit (Hif1a) gene. A sepsis-induced acute lung injury model was constructed via cecal ligation and puncture (CLP). SETD2 was decreased in RAW 264.7 cells stimulated by lipopolysaccharide (LPS). Besides, SETD2 suppressed M1 macrophage polarization and glycolysis caused by LPS. HIF-1α was enhanced in RAW 264.7 cells stimulated by LPS and inversely related to SETD2 expression. In addition, SETD2-catalyzed H3K36me3 bound to the Hif1a gene to modulate HIF-1α expression. Furthermore, Hif1a silencing suppressed Setd2 silencing-induced M1 macrophage polarization and glycolysis in RAW 264.7 cells. Moreover, overexpression of Setd2 inhibited CLP-induced lung injury and M1 macrophage polarization in mice. SETD2 suppressed M1 macrophage polarization and glycolysis via regulating HIF-1α through catalyzing H3K36me3 in sepsis.
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Affiliation(s)
- Yan Meng
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, People's Republic of China
| | - Kai-Wen Kong
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, People's Republic of China
| | - Yong-Qing Chang
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, People's Republic of China
| | - Xiao-Ming Deng
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, People's Republic of China.
| | - Tao Yang
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, People's Republic of China.
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6
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Tan S, Wang Z, Li N, Guo X, Zhang Y, Ma H, Peng X, Zhao Y, Li C, Gao L, Li T, Liang X, Ma C. Transcription factor Zhx2 is a checkpoint that programs macrophage polarization and antitumor response. Cell Death Differ 2023; 30:2104-2119. [PMID: 37582865 PMCID: PMC10482862 DOI: 10.1038/s41418-023-01202-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 07/22/2023] [Accepted: 08/02/2023] [Indexed: 08/17/2023] Open
Abstract
Macrophages are usually educated to tumor-associated macrophages (TAMs) in cancer with pro-tumor functions by tumor microenvironment (TME) and TAM reprogramming has been proposed as a potential tumor immunotherapy strategy. We recently demonstrated the critical role of Zinc-fingers and homeoboxes 2 (Zhx2) in macrophages' metabolic programming. However, whether Zhx2 is responsible for macrophage polarization and TAMs reprogramming is largely unknown. Here, we show that Zhx2 controls macrophage polarization under the inflammatory stimulus and TME. Myeloid-specific deletion of Zhx2 suppresses LPS-induced proinflammatory polarization but promotes IL-4 and TME-induced anti-inflammatory and pro-tumoral phenotypes in murine liver tumor models. Factors in TME, especially lactate, markedly decrease the expression of Zhx2 in TAMs, leading to the switch of TAMs to pro-tumor phenotype and consequent cancer progression. Notably, reduced ZHX2 expression in TAM correlates with poor survival of HCC patients. Mechanistic studies reveal that Zhx2 associates with NF-κB p65 and binds to the Irf1 promoter, leading to transcriptional activation of Irf1 in macrophages. Zhx2 functions in maintaining macrophage polarization by regulating Irf1 transcription, which may be a potential target for macrophage-based cancer immunotherapy.
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Affiliation(s)
- Siyu Tan
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, China
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Zehua Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
- Department of Clinical Laboratory, Qilu Hospital, Shandong University (Qingdao), Qingdao, China
| | - Na Li
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Xiaowei Guo
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Yankun Zhang
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Hongxin Ma
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University, and Shandong Academy of Medical Sciences, Jinan, China
| | - Xueqi Peng
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Ying Zhao
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Chunyang Li
- Key Laboratory for Experimental Teratology of Ministry of Education, Department of Histology and Embryology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Lifen Gao
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Tao Li
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, China
| | - Xiaohong Liang
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China.
| | - Chunhong Ma
- Key Laboratory for Experimental Teratology of Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province and Department of Immunology, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, Shandong, China.
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7
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Liu T, Wen Z, Shao L, Cui Y, Tang X, Miao H, Shi J, Jiang L, Feng S, Zhao Y, Zhang H, Liang Q, Chen D, Zhang Y, Wang C. ATF4 knockdown in macrophage impairs glycolysis and mediates immune tolerance by targeting HK2 and HIF-1α ubiquitination in sepsis. Clin Immunol 2023; 254:109698. [PMID: 37481013 DOI: 10.1016/j.clim.2023.109698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/30/2023] [Accepted: 07/18/2023] [Indexed: 07/24/2023]
Abstract
Strengthened glycolysis is crucial for the macrophage pro-inflammatory response during sepsis. Activating transcription factor 4 (ATF4) plays an important role in regulating glucose and lipid metabolic homeostasis in hepatocytes and adipocytes. However, its immunometabolic role in macrophage during sepsis remains largely unknown. In the present study, we found that the expression of ATF4 in peripheral blood mononuclear cells (PBMCs) was increased and associated with glucose metabolism in septic patients. Atf4 knockdown specifically decreased LPS-induced spleen macrophages and serum pro-inflammatory cytokines levels in mice. Moreover, Atf4 knockdown partially blocked LPS-induced pro-inflammatory cytokines, lactate accumulation and glycolytic capacity in RAW264.7. Mechanically, ATF4 binds to the promoter region of hexokinase II (HK2), and interacts with hypoxia inducible factor-1α (HIF-1α) and stabilizes HIF-1α through ubiquitination modification in response to LPS. Furthermore, ATF4-HIF-1α-HK2-glycolysis axis launches pro-inflammatory response in macrophage depending on the activation of mammalian target of rapamycin (mTOR). Importantly, Atf4 overexpression improves the decreased level of pro-inflammatory cytokines and lactate secretion and HK2 expression in LPS-induced tolerant macrophages. In conclusion, we propose a novel function of ATF4 as a crucial glycolytic activator contributing to pro-inflammatory response and improving immune tolerant in macrophage involved in sepsis. So, ATF4 could be a potential new target for immunotherapy of sepsis.
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Affiliation(s)
- Tiantian Liu
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China
| | - Zhenliang Wen
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025 Shanghai, China
| | - Lujing Shao
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China
| | - Yun Cui
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Institute of Pediatric Critical Care, Shanghai Jiao Tong University, 200062, Shanghai, China
| | - Xiaomeng Tang
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China
| | - Huijie Miao
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Institute of Pediatric Critical Care, Shanghai Jiao Tong University, 200062, Shanghai, China
| | - Jingyi Shi
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Institute of Pediatric Critical Care, Shanghai Jiao Tong University, 200062, Shanghai, China
| | - Linlin Jiang
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - Shuyun Feng
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China
| | - Yilin Zhao
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China
| | - Hong Zhang
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - Qiming Liang
- Research Center of Translational Medicine, Shanghai Institute of Immunology, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dechang Chen
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025 Shanghai, China..
| | - Yucai Zhang
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Institute of Pediatric Critical Care, Shanghai Jiao Tong University, 200062, Shanghai, China.
| | - Chunxia Wang
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Laboratory of Critical Care Translational Medicine, Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, 200062 Shanghai, China; Institute of Pediatric Critical Care, Shanghai Jiao Tong University, 200062, Shanghai, China.
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8
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Ding L, Zhang Y, Wang Y, Wang Y, Tong Z, Li P, Chen C, Wang B, Yue X, Li C, Wu Z, Liang X, Ma C, Gao L. Zhx2 maintains islet β-cell mass and function by transcriptionally regulating Pax6. iScience 2023; 26:106871. [PMID: 37275527 PMCID: PMC10232729 DOI: 10.1016/j.isci.2023.106871] [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: 11/18/2022] [Revised: 04/05/2023] [Accepted: 05/09/2023] [Indexed: 06/07/2023] Open
Abstract
Emerging evidence shows that pancreatic β-cell function and quality are key determinants in the progression of type 2 diabetes (T2D). The transcription factor zinc finger homeobox 2 (Zhx2) is involved in proliferation and development of multiple cells. However, the exact role of Zhx2 in β-cells and T2D remains completely unknown. Here, we report that Zhx2 orchestrates β-cell mass and function by regulating paired box protein pax-6 (Pax6). We found that β-cell-specific knockout Zhx2 (Zhx2BKO) mice showed a decrease in β-cell proliferation and glucose homeostasis. Under prediabetic and diabetic conditions, we discovered glucose intolerance in both Zhx2BKO-HFD mice and Zhx2BKO-db/db mice, with reduced β-cell mass and insulin secretion. Mechanistically, we demonstrated that Zhx2 targeted the Pax6 promoter region (-1740∼-1563; -862∼-559; -251∼+75), enhanced promoter activity. Overall, Zhx2 maintains β-cell function by transcriptionally regulating Pax6, which provides a therapeutic target for diabetes intervention.
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Affiliation(s)
- Lu Ding
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Yankun Zhang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Yingchun Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Yuzhen Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Zheng Tong
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Pengfei Li
- Department of Endocrinology, Yucheng People’s Hospital, Dezhou, Shandong 251200, P. R. China
| | - Chaojia Chen
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Bo Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Xuetian Yue
- Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Chunyang Li
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Histology and Embryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Zhuanchang Wu
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Xiaohong Liang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Chunhong Ma
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
| | - Lifen Gao
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
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9
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Wan K, Shao J, Liu X, Cai Y, Xu Y, Li L, Xiong L, Liang S. HOXD9 contributes to the Warburg effect and tumor metastasis in non-small cell lung cancer via transcriptional activation of PFKFB3. Exp Cell Res 2023; 427:113583. [PMID: 37004946 DOI: 10.1016/j.yexcr.2023.113583] [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: 12/05/2022] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Abstract
Warburg effect is associated with the progression of various tumors, leading to the development of drugs targeting the phenomenon. PFKFB3 is an isoform of 6-phosphofructo-2-kinase (PFK2) that modulates the Warburg effect and has been implicated in most common types of cancer, including non-small cell lung cancer (NSCLC). However, the mechanisms underlying the upstream regulation of PFKFB3 in NSCLC remain poorly understood. This study reported that the transcription factor HOXD9 is upregulated in NSCLC patient samples relative to adjacent normal tissue. Elevated HOXD9 levels are primarily associated with poor prognosis in patients with NSCLC. Functionally, HOXD9 knockdown impaired the metastatic capacity of NSCLC cells, whereas its over-expression accelerated the metastasis and invasion of NSCLC cells in an orthotopic tumor mouse model. In addition, HOXD9 promoted metastasis by increasing cellular glycolysis. Further mechanistic studies revealed that HOXD9 directly binds to the promoter region of PFKFB3 to enhance its transcription. The recovery assay confirmed that the capability of HOXD9 to promote NSCLC cells metastasis was significantly weakened upon PFKFB3 inhibition. These data suggest that HOXD9 may exert as a novel biomarker in NSCLC, indicating that blocking the HOXD9/PFKFB3 axis may be a potential therapeutic strategy for NSCLC treatment.
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Affiliation(s)
- Ke Wan
- Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, 330006, Jiangxi Province, China.
| | - Jun Shao
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Xi Liu
- Department of Thoracic Cancer Surgery, Jiangxi Cancer Hospital, Nanchang, 330006, Jiangxi Province, China
| | - Yun Cai
- Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, 330006, Jiangxi Province, China
| | - Yanliang Xu
- Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, 330006, Jiangxi Province, China
| | - Lin Li
- Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, 330006, Jiangxi Province, China
| | - Linkai Xiong
- Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, 330006, Jiangxi Province, China
| | - Shuang Liang
- Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, 330006, Jiangxi Province, China
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10
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Bian Y, Li W, Jiang X, Yin F, Yin L, Zhang Y, Guo H, Liu J. Garlic-derived exosomes carrying miR-396e shapes macrophage metabolic reprograming to mitigate the inflammatory response in obese adipose tissue. J Nutr Biochem 2023; 113:109249. [PMID: 36496060 DOI: 10.1016/j.jnutbio.2022.109249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 11/08/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Low-grade chronic inflammation originating from the adipose tissue and imbalance of lipid metabolism in the liver are the main drivers of the development of obesity and its related metabolic disorders. In this work, we found that garlic-derived exosomes (GDE) supplementation improved insulin resistance, altered the levels of inflammatory cytokines in serum and epididymal white adipose tissue (eWAT) by decreasing the accumulation of macrophages in HFD-fed mice. Meanwhile, we also observed that GDE regulated the expression of 6-phosphofructo-2-kinase/fructose-2, 6-biphosphatase 3 (PFKFB3), one of the critical glycolytic enzymes, to shape the metabolic reprograming of macrophage induced by lipopolysaccharide (LPS) and mitigate the inflammatory response in adipocytes via macrophage-adipocyte cross-talk. Data from small RNA sequencing, bioinformatical analysis and the gene over-expression revealed that miR-396e, one of the most abundant miRNAs of GDE, played a critical role in promoting the metabolic reprogramming of macrophage by directly targeting PFKFB3. The findings of this study not only provide an in-depth understanding of GDE protecting against inflammation in obesity but supply evidence to study the molecular mechanisms associated with the interspecies communication.
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Affiliation(s)
- Yangping Bian
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Weizhao Li
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Xiaoqing Jiang
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Fei Yin
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China; College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China.
| | - Li Yin
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China; College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Yonglan Zhang
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China; College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Hong Guo
- Department of Gastroenterology, Chongqing General Hospital, University of Chinese Academic of Sciences, Chongqing, People's Republic of China.
| | - Jianhui Liu
- Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, People's Republic of China; College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China.
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11
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Chen Y, Chen X, Zhou Q. Different effects of a perioperative single dose of dexamethasone on wound healing in mice with or without sepsis. Front Surg 2023; 10:927168. [PMID: 37114154 PMCID: PMC10126451 DOI: 10.3389/fsurg.2023.927168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 03/16/2023] [Indexed: 04/29/2023] Open
Abstract
Introduction Sepsis delays wound healing owing to uncontrolled inflammation. A single perioperative dose of dexamethasone is widely used because of its anti-inflammatory effects. However, the effects of dexamethasone on wound healing in sepsis remain unclear. Methods We discuss the methods to obtain dose curves and explore the safe dosage range for wound healing in mice with or without sepsis. A saline or LPS intraperitoneal injection was applied to C57BL/6 mice. After 24 hours, the mice received a saline or DEX intraperitoneal injection and full-thickness, dorsal wounding operation. Wound healing was observed by image record, immunofluorescence and histological staining. Inflammatory cytokines and M1/M2 macrophages in wounds were determined by ELISA and immunofluorescence, respectively. Results Dose-response curves reflected the safe dosage range of DEX in mice with or without sepsis, from 0.121 to 2.03 mg/kg and from 0 to 0.633 mg/kg, respectively. we found that a single dose of dexamethasone (1 mg/kg, i.p.) promoted wound healing in septic mice, but delayed wound healing in normal mice. In normal mice, dexamethasone delays inflammation, resulting in an insufficient number of macrophages during the healing process. In septic mice, dexamethasone alleviated excessive inflammation and maintained the balance of M1/M2 macrophages in the early and late healing process. Discussion In summary, the safe dosage range of dexamethasone in septic mice is wider than that in normal mice. A single dose of dexamethasone (1 mg/kg) increased wound healing in septic mice, but delayed it in normal mice. Our findings provide helpful suggestions for the rational use of dexamethasone.
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Affiliation(s)
- Yuanyang Chen
- Department of Anesthesiology, Affiliated Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoshan Chen
- Department of Anesthesiology, Affiliated Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Quanhong Zhou
- Department of ICU, Affiliated Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
- Correspondence: Quanhong Zhou
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12
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Abstract
As a transcriptional factor and the negative regulator of alpha fetal protein (AFP), Zinc fingers and homeoboxes 2 (ZHX2) has a well-established role in protection against hepatocellular carcinoma (HCC). However, recent studies have suggested ZHX2 as an oncogene in clear cell renal cell carcinoma (ccRCC) and triple-negative breast cancer (TNBC). Moreover, mounting evidence has illustrated a much broader role of ZHX2 in multiple cellular processes, including cell proliferation, cell differentiation, lipid metabolism, and immunoregulation. This comprehensive review emphasizes the role of ZHX2 in health and diseases which have been more recently uncovered.
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Affiliation(s)
- Na Li
- Key Laboratory for Experimental Teratology of Ministry of Education and Dept. Immunology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, Shandong, China
| | - Zhuanchang Wu
- Key Laboratory for Experimental Teratology of Ministry of Education and Dept. Immunology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, Shandong, China
| | - Chunhong Ma
- Key Laboratory for Experimental Teratology of Ministry of Education and Dept. Immunology, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, Jinan, Shandong, China
- Key Laboratory of Infection and Immunity of Shandong Province, Shandong University, Jinan, Shandong, China
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13
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Liu Z, Mao X, Yang Q, Zhang X, Xu J, Ma Q, Zhou Y, Da Q, Cai Y, Sopeyin A, Dong Z, Hong M, Caldwell RB, Sodhi A, Huo Y. Suppression of myeloid PFKFB3-driven glycolysis protects mice from choroidal neovascularization. Br J Pharmacol 2022; 179:5109-5131. [PMID: 35830274 DOI: 10.1111/bph.15925] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 06/09/2022] [Accepted: 07/05/2022] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND AND PURPOSE Pathological angiogenesis is a major cause of irreversible blindness in individuals with neovascular age-related macular degeneration (nAMD). Macrophages and microglia (MΦ) contribute to aberrant ocular angiogenesis. However, the role of glucose metabolism of MΦ in nAMD is still undefined. Here, we have investigated the involvement of glycolysis, driven by the kinase/phosphatase PFKFB3, in the development of choroidal neovascularization (CNV). EXPERIMENTAL APPROACH CNV was induced in mice with laser photocoagulation. Choroid/retinal pigment epithelium (RPE) complexes and MΦ were isolated for analysis by qRT-PCR, western blot, flow cytometry, immunostaining, metabolic measurements and angiogenesis assays. KEY RESULTS MΦ accumulated within the CNV of murine nAMD models and expressed high levels of glycolysis-related enzymes and M1/M2 polarization markers. This phenotype of hyper-glycolytic and activated MΦ was replicated in bone marrow-derived macrophages stimulated by necrotic RPE in vitro. Myeloid cell-specific knockout of PFKFB3, a key glycolytic activator, attenuated pathological neovascularization in laser-induced CNV, which was associated with decreased expression of MΦ polarization markers and pro-angiogenic factors, along with decreased sprouting of vessels in choroid/RPE complexes. Mechanistically, necrotic RPE increased PFKFB3-driven glycolysis in macrophages, leading to activation of HIF-1α/HIF-2α and NF-κB, and subsequent induction of M1/M2 markers and pro-angiogenic cytokines, finally promoting macrophage reprogramming towards an angiogenic phenotype to facilitate development of CNV. The PFKFB3 inhibitor AZ67 also inhibited activation of HIF-1α/HIF-2α and NF-κB signalling and almost completely prevented laser-induced CNV in mice. CONCLUSIONS AND IMPLICATIONS Modulation of PFKFB3-mediated macrophage glycolysis and activation is a promising strategy for the treatment of nAMD.
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Affiliation(s)
- Zhiping Liu
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China
| | - Xiaoxiao Mao
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Qiuhua Yang
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Xiaoyu Zhang
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Jiean Xu
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Qian Ma
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Yaqi Zhou
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Qingen Da
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Yongfeng Cai
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Anu Sopeyin
- Wilmer Eye Institute, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia, USA
| | - Mei Hong
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Ruth B Caldwell
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia, USA
- James and Jean Culver Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Akrit Sodhi
- Wilmer Eye Institute, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Yuqing Huo
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- James and Jean Culver Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
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14
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He Y, Huang B, Yang Y, Song W, Fan Y, Zhang L, Liu G. MicroRNA‐16‐5p exacerbates sepsis by upregulating aerobic glycolysis via SIRT3‐SDHA axis. Cell Biol Int 2022; 46:2207-2219. [DOI: 10.1002/cbin.11908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/26/2022] [Accepted: 09/03/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Yue‐Xian He
- Department of Pediatrics The Fifth Affiliated Hospital of Zunyi Medical University Zhuhai Guangdong People's Republic of China
- Department of Pediatrics The First Affiliated Hospital of Jinan University Guangzhou Guangdong People's Republic of China
| | - Bo‐Lun Huang
- Department of PICU Guangzhou Women and Children's Medical Center Guangzhou Guangdong People's Republic of China
| | - Yi‐Yu Yang
- Department of PICU Guangzhou Women and Children's Medical Center Guangzhou Guangdong People's Republic of China
| | - Wen‐Xiu Song
- Department of Pediatrics The Fifth Affiliated Hospital of Zunyi Medical University Zhuhai Guangdong People's Republic of China
| | - Yong‐Bo Fan
- Department of Pediatrics The Fifth Affiliated Hospital of Zunyi Medical University Zhuhai Guangdong People's Republic of China
| | - Li‐Mei Zhang
- Department of Pediatrics The Fifth Affiliated Hospital of Zunyi Medical University Zhuhai Guangdong People's Republic of China
| | - Guo‐Sheng Liu
- Department of Pediatrics The First Affiliated Hospital of Jinan University Guangzhou Guangdong People's Republic of China
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15
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Uzunlulu G, Uzunlulu M, Gencer A, Özdoğru F, Seven S. Knowledge on Medical Waste Management Among Health Care Personnel: A Report from Turkey. CYPRUS JOURNAL OF MEDICAL SCIENCES 2022. [DOI: 10.4274/cjms.2020.1107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Youssef AM, Song DK. Lysophosphatidylcholine induces adenosine release from macrophages via TRPM7-mediated mitochondrial activation. Purinergic Signal 2022; 18:317-343. [PMID: 35779163 PMCID: PMC9391566 DOI: 10.1007/s11302-022-09878-y] [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: 01/14/2022] [Accepted: 06/13/2022] [Indexed: 01/04/2023] Open
Abstract
Even though macrophages have the potential to harm tissues through excessive release of inflammatory mediators, they play protective roles to maintain tissue integrity. In this study, we hypothesized that lysophosphatidylcholine (LPC), via G2A and A2B receptors, puts brakes on macrophages by the induction of adenosine release which could contribute to termination of inflammation. Mechanistically, LPC-induced PGE2 production followed by the activation of cAMP/protein kinase A (PKA) pathway which results in the activation of LKB1/AMPK signaling pathway leading to increasing Mg2+ influx concomitantly with an increase in mitochondrial membrane potential (MMP, Δψm) and ATP production. Then, ATP is converted to adenosine intracellularly followed by efflux via ENT1. In a parallel pathway, LPC-induced elevation of cytosolic calcium was essential for adenosine release, and Ca2+/calmodulin signaling cooperated with PKA to regulate ENT1 permeation to adenosine. Pharmacological blockade of TRPM7 and antisense treatment suppressed LPC-induced adenosine release and magnesium influx in bone marrow-derived macrophages (BMDMs). Moreover, LPC suppressed LPS-induced phosphorylation of connexin-43, which may counteract TLR4-mediated inflammatory response. Intriguingly, we found LPC increased netrin-1 production from BMDMs. Netrin-1 induces anti-inflammatory signaling via A2B receptor. In the presence of adenosine deaminase which removes adenosine in the medium, the chemotaxis of macrophages toward LPC was significantly increased. Hypoxia and metabolic acidosis are usually developed in a variety of inflammatory situations such as sepsis. We found LPC augmented hypoxia- or acidosis-induced adenosine release from BMDMs. These results provide evidence of LPC-induced brake-like action on macrophages by adenosine release via cellular magnesium signaling.
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Affiliation(s)
- Ahmed M Youssef
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon, Gangwon-do, 24252, Republic of Korea
| | - Dong-Keun Song
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon, Gangwon-do, 24252, Republic of Korea.
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17
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Fu Z, Wang X, Lu X, Yang Y, Zhao L, Zhou L, Wang K, Fu H. Mannose-decorated ginsenoside Rb1 albumin nanoparticles for targeted anti-inflammatory therapy. Front Bioeng Biotechnol 2022; 10:962380. [PMID: 36046677 PMCID: PMC9420840 DOI: 10.3389/fbioe.2022.962380] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/04/2022] [Indexed: 11/29/2022] Open
Abstract
Ginsenoside Rb1 is a potential anti-inflammatory natural molecule, but its therapeutic efficacy was tremendously hampered by the low solubility and non-targeted delivery. In this study, we innovatively developed a mannose (Man)-modified albumin bovine serum albumin carrier (Man-BSA) to overcome the previously mentioned dilemmas of Rb1. The constructed Man-BSA@Rb1 NPs could improve the solubility and increase the cellular uptake of Rb1, finally leading to the enhanced anti-inflammatory effects. The robust therapeutics of Man-BSA@Rb1 NPs were measured in terms of nitrite, tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) levels, which might be achieved by potently inhibiting nuclear factor-κB (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways in lipopolysaccharide (LPS)-induced Raw264.7 cells. Moreover, the therapeutic efficacy of Man-BSA@Rb1 NPs was further confirmed in the d-Gal/LPS-induced liver injury model. The results indicated that Man-BSA may offer a promising system to improve the anti-inflammatory therapy of Rb1.
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Affiliation(s)
- Zhihui Fu
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaohui Wang
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xuan Lu
- School of Pharmacy and Affiliated Hospital of Nantong University, Nantong University, Nantong, China
| | - Ying Yang
- School of Pharmacy and Affiliated Hospital of Nantong University, Nantong University, Nantong, China
| | - Lingling Zhao
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lin Zhou
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kaikai Wang
- School of Pharmacy and Affiliated Hospital of Nantong University, Nantong University, Nantong, China
- *Correspondence: Kaikai Wang, ; Hanlin Fu,
| | - Hanlin Fu
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Kaikai Wang, ; Hanlin Fu,
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18
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He Q, Yin J, Zou B, Guo H. WIN55212-2 alleviates acute lung injury by inhibiting macrophage glycolysis through the miR-29b-3p/FOXO3/PFKFB3 axis. Mol Immunol 2022; 149:119-128. [PMID: 35810663 DOI: 10.1016/j.molimm.2022.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/25/2022] [Accepted: 06/10/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Acute lung injury (ALI) is a severe organ dysfunction caused by sepsis. WIN55212-2 (WIN) is a cannabinoid receptor agonist. Activation of cannabinoid type 2 receptor can alleviate septic lung injury. Therefore, the effects of WIN on sepsis-related ALI were evaluated. METHODS MiR-29b-3p, FOXO3 and PFKFB3 levels, as well as M1 and M2 macrophage markers were assessed by RT-qPCR in MH-S cells after lipopolysaccharide (LPS) and WIN treatment. ChIP and dual luciferase reporter assays determined molecules interactions. Glycolysis-related proteins were evaluated by Western blotting assay. Lactic acid and ATP were also tested. Furthermore, the effect of WIN was tested in sepsis mice model. HE staining evaluated the histopathological changes in mouse lung tissues. The number of inflammatory cells and macrophages, protein concentration and lactic acid content were detected in mouse bronchoalveolar lavage fluid. RESULTS We found that WIN suppressed M1 polarization and glycolysis in alveolar macrophages induced by LPS. Moreover, WIN inhibited FOXO3 by up-regulating miR-29b-3p. Furthermore, we verified that FOXO3 induced macrophage M1 polarization and glycolysis through activating PFKFB3. In vivo, WIN alleviated ALI in mice with sepsis. CONCLUSION Our results reveal that WIN inhibits macrophage glycolysis through the miR-29b-3p/ FOXO3/PFKFB3 axis, suggesting new therapeutic targets to alleviate sepsis-related ALI.
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Affiliation(s)
- Quan He
- Department of Emergency/EICU, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan Province, PR China
| | - Jun Yin
- Department of Emergency/EICU, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan Province, PR China
| | - Baisong Zou
- Department of Emergency/EICU, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan Province, PR China
| | - Hui Guo
- Center of Stomatology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan Province, PR China.
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19
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Luo R, Li X, Wang D. Reprogramming Macrophage Metabolism and its Effect on NLRP3 Inflammasome Activation in Sepsis. Front Mol Biosci 2022; 9:917818. [PMID: 35847986 PMCID: PMC9276983 DOI: 10.3389/fmolb.2022.917818] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/09/2022] [Indexed: 12/29/2022] Open
Abstract
Sepsis, the most common life-threatening multi-organ dysfunction syndrome secondary to infection, lacks specific therapeutic strategy due to the limited understanding of underlying mechanisms. It is currently believed that inflammasomes play critical roles in the development of sepsis, among which NLRP3 inflammasome is involved to most extent. Recent studies have revealed that dramatic reprogramming of macrophage metabolism is commonly occurred in sepsis, and this dysregulation is closely related with the activation of NLRP3 inflammasome. In view of the fact that increasing evidence demonstrates the mechanism of metabolism reprogramming regulating NLRP3 activation in macrophages, the key enzymes and metabolites participated in this regulation should be clearer for better interpreting the relationship of NLRP3 inflammasome and sepsis. In this review, we thus summarized the detail mechanism of the metabolic reprogramming process and its important role in the NLRP3 inflammasome activation of macrophages in sepsis. This mechanism summarization will reveal the applicational potential of metabolic regulatory molecules in the treatment of sepsis.
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Affiliation(s)
- Ruiheng Luo
- Department of Hematology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xizhe Li
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Research Center for Pulmonary Nodules Precise Diagnosis & Treatment, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Dan Wang
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Dan Wang,
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20
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Zhao Y, Gao L, Jiang C, Chen J, Qin Z, Zhong F, Yan Y, Tong R, Zhou M, Yuan A, Pu J. The transcription factor zinc fingers and homeoboxes 2 alleviates NASH by transcriptional activation of phosphatase and tensin homolog. Hepatology 2022; 75:939-954. [PMID: 34545586 DOI: 10.1002/hep.32165] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/25/2021] [Accepted: 08/08/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND AIMS NASH, which is a common clinical condition predisposing to advanced liver diseases, has become a worldwide epidemic. A large and growing unmet therapeutic need for this condition reflects incomplete understanding of its pathogenesis. In the current study, we identified a transcription factor, zinc fingers and homeoboxes 2 (ZHX2), in hepatocytes as a protective factor against steatohepatitis. APPROACH AND RESULTS We found that hepatic ZHX2 was significantly suppressed in NASH models and steatotic hepatic cells. Hepatocyte-specific ablation of ZHX2 exacerbated NASH-related phenotypes in mice, including lipid accumulation, enhanced inflammation, and hepatic fibrosis. Conversely, hepatocyte-specific overexpression of ZHX2 significantly alleviated the progression of NASH in an experimental setting. Integrated analysis of transcriptomic profiling and chromatin immunoprecipitation sequencing data demonstrated that the phosphatase and tensin homolog (PTEN) was a target gene of ZHX2 in hepatocyte. ZHX2 bound to the promoter of PTEN gene and subsequently promoted the transcription of PTEN, which mediated the beneficial role of ZHX2 against NASH. CONCLUSIONS The current findings demonstrate a protective role of ZHX2 against NASH progression by transcriptionally activating PTEN. These findings shed light on the therapeutic potential of targeting ZHX2 for treating NASH and related metabolic disorders.
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Affiliation(s)
- Yichao Zhao
- State Key Laboratory for Oncogenes and Related GenesDivision of CardiologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Cancer InstituteShanghaiChina
| | - Lingchen Gao
- State Key Laboratory for Oncogenes and Related GenesDivision of CardiologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Cancer InstituteShanghaiChina
| | - Chenglin Jiang
- Graduate School of Bengbu Medical CollegeBengbuAnhuiChina
| | - Jianqing Chen
- Graduate School of Bengbu Medical CollegeBengbuAnhuiChina
| | - Zihan Qin
- State Key Laboratory for Oncogenes and Related GenesDivision of CardiologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Cancer InstituteShanghaiChina
| | - Fangyuan Zhong
- State Key Laboratory for Oncogenes and Related GenesDivision of CardiologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Cancer InstituteShanghaiChina
| | - Yang Yan
- State Key Laboratory for Oncogenes and Related GenesDivision of CardiologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Cancer InstituteShanghaiChina
| | - Renyang Tong
- State Key Laboratory for Oncogenes and Related GenesDivision of CardiologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Cancer InstituteShanghaiChina
| | - Meng Zhou
- State Key Laboratory for Oncogenes and Related GenesDivision of CardiologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Cancer InstituteShanghaiChina
| | - Ancai Yuan
- State Key Laboratory for Oncogenes and Related GenesDivision of CardiologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Cancer InstituteShanghaiChina
| | - Jun Pu
- State Key Laboratory for Oncogenes and Related GenesDivision of CardiologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai Cancer InstituteShanghaiChina
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21
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Yu Q, Guo M, Zeng W, Zeng M, Zhang X, Zhang Y, Zhang W, Jiang X, Yu B. Interactions between NLRP3 inflammasome and glycolysis in macrophages: New insights into chronic inflammation pathogenesis. Immun Inflamm Dis 2022; 10:e581. [PMID: 34904398 PMCID: PMC8926505 DOI: 10.1002/iid3.581] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 12/11/2022] Open
Abstract
NLRP3 inflammasome activation in macrophages fuels sterile inflammation, which has been tied with metabolic reprogramming characterized by high glycolysis and low oxidative phosphorylation. The key enzymes in glycolysis and glycolysis‐related products can regulate and activate NLRP3 inflammasome. In turn, NLRP3 inflammasome is considered to affect glycolysis, as well. However, the exact mechanism remains ambiguous. On the basis of these findings, the focus of this review is mainly on the developments in our understanding of interaction between NLRP3 inflammasome activation and glycolysis in macrophages, and small molecule compounds that influence the activation of NLRP3 inflammasomes by regulating glycolysis in macrophages. The application of this interaction in the treatment of diseases is also discussed. This paper may yield valuable clues for development of novel therapeutic agent for NLRP3 inflammasome‐related diseases.
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Affiliation(s)
- Qun Yu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Maojuan Guo
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wenyun Zeng
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Miao Zeng
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaolu Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yue Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wenlan Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xijuan Jiang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bin Yu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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22
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Pan T, Sun S, Chen Y, Tian R, Chen E, Tan R, Wang X, Liu Z, Liu J, Qu H. Immune effects of PI3K/Akt/HIF-1α-regulated glycolysis in polymorphonuclear neutrophils during sepsis. Crit Care 2022; 26:29. [PMID: 35090526 PMCID: PMC8796568 DOI: 10.1186/s13054-022-03893-6] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 01/10/2022] [Indexed: 12/29/2022] Open
Abstract
Background Effective removal of pathogenic bacteria is key to improving the prognosis of sepsis. Polymorphonuclear neutrophils (PMNs) are the most important components of innate cellular immunity and play vital roles in clearing pathogenic bacteria. However, the metabolic characteristics and immunomodulatory pathways of PMNs during sepsis have not been investigated. In the present study, we explored the immune metabolism characteristics of PMNs and the mechanism by which neutrophilic glycolysis is regulated during sepsis. Methods Metabolomics analysis was performed on PMNs isolated from 14 septic patients, 26 patients with acute appendicitis, and 19 healthy volunteers. Transcriptome analysis was performed on the PMNs isolated from the healthy volunteers and the patients with sepsis to assess glycolysis and investigate its mechanism. Lipopolysaccharide (LPS) was used to stimulate the neutrophils isolated from the healthy volunteers at different time intervals to build an LPS-tolerant model. Chemotaxis, phagocytosis, lactate production, oxygen consumption rate (OCR), and extracellular acidification rate (ECAR) were evaluated. Results Transcriptomics showed significant changes in glycolysis and the mTOR/HIF-1α signaling pathway during sepsis. Metabolomics revealed that the Warburg effect was significantly altered in the patients with sepsis. We discovered that glycolysis regulated PMNs’ chemotaxis and phagocytosis functions during sepsis. Lactate dehydrogenase A (LDHA) downregulation was a key factor in the inhibition of glycolysis in PMNs. This study confirmed that the PI3K/Akt-HIF-1α pathway was involved in the LDHA expression level and also influenced PMNs’ chemotaxis and phagocytosis functions. Conclusions The inhibition of glycolysis contributed to neutrophil immunosuppression during sepsis and might be controlled by PI3K/Akt-HIF-1α pathway-mediated LDHA downregulation. Our study provides a scientific theoretical basis for the management and treatment of patients with sepsis and promotes to identify therapeutic target for the improvement of immune function in sepsis. Supplementary Information The online version contains supplementary material available at 10.1186/s13054-022-03893-6.
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23
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Li R, Li X, Zhao J, Meng F, Yao C, Bao E, Sun N, Chen X, Cheng W, Hua H, Li X, Wang B, Wang H, Pan X, You H, Yang J, Ikezoe T. Mitochondrial STAT3 exacerbates LPS-induced sepsis by driving CPT1a-mediated fatty acid oxidation. Am J Cancer Res 2022; 12:976-998. [PMID: 34976224 PMCID: PMC8692896 DOI: 10.7150/thno.63751] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 11/24/2021] [Indexed: 01/08/2023] Open
Abstract
Rationale: We found that a subset of signal transducer and activator of transcription 3 (STAT3) translocated into mitochondria in phagocytes, including macrophages isolated from individuals with sepsis. However, the role of mitochondrial STAT3 in macrophages remains unclear. Method: To investigate the function of mitochondrial STAT3 in vivo, we generated inducible mitochondrial STAT3 knock-in mice. A cytokine array analysis, a CBA analysis, flow cytometry, immunofluorescence staining and quantification and metabolic analyses in vivo were subsequently performed in an LPS-induced sepsis model. Single-cell RNA sequencing, a microarray analysis, metabolic assays, mass spectrometry and ChIP assays were utilized to gain insight into the mechanisms of mitochondrial STAT3 in metabolic reprogramming in LPS-induced sepsis. Results: We found that mitochondrial STAT3 induced NF-κB nuclear localization and exacerbated LPS-induced sepsis in parallel with a metabolic switch from mainly using glucose to an increased reliance on fatty acid oxidation (FAO). Moreover, mitochondrial STAT3 abrogated carnitine palmitoyl transferase 1a (CPT1a) ubiquitination and degradation in LPS-treated macrophages. Meanwhile, an interaction between CPT1a and ubiquitin-specific peptidase 50 (USP50) was observed. In contrast, knocking down USP50 decreased CPT1a expression and FAO mediated by mitochondrial STAT3. The ChIP assays revealed that NF-κB bound the USP50 promoter. Curcumin alleviated LPS-mediated sepsis by suppressing the activities of mitochondrial STAT3 and NF-κB. Conclusion: Our findings reveal that mitochondrial STAT3 could trigger FAO by inducing CPT1a stabilization mediated by USP50 in macrophages, at least partially.
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24
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Liu D, Sun W, Zhang D, Yu Z, Qin W, Liu Y, Zhang K, Yin J. Long noncoding RNA GSEC promotes neutrophil inflammatory activation by supporting PFKFB3-involved glycolytic metabolism in sepsis. Cell Death Dis 2021; 12:1157. [PMID: 34907156 PMCID: PMC8671582 DOI: 10.1038/s41419-021-04428-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 11/03/2021] [Accepted: 11/17/2021] [Indexed: 12/18/2022]
Abstract
Metabolic reprogramming is a hallmark of neutrophil activation in sepsis. LncRNAs play important roles in manipulating cell metabolism; however, their specific involvement in neutrophil activation in sepsis remains unclear. Here we found that 11 lncRNAs and 105 mRNAs were differentially expressed in three transcriptome datasets (GSE13904, GSE28750, and GSE64457) of gene expression in blood leukocytes and neutrophils of septic patients and healthy volunteers. After Gene Ontology biological process analysis and lncRNA-mRNA pathway network construction, we noticed that GSEC lncRNA and PFKFB3 were co-expressed and associated with enhanced glycolytic metabolism. Our clinical observations confirmed the expression patterns of GSEC lncRNA and PFKFB3 genes in neutrophils in septic patients. Performing in vitro experiments, we found that the expression of GSEC lncRNA and PFKFB3 was increased when neutrophils were treated with inflammatory stimuli. Knockdown and overexpression experiments showed that GSEC lncRNA was essential for mediating PFKFB3 mRNA expression and stability in neutrophil-like dHL-60 cells. In addition, we found that GSEC lncRNA-induced PFKFB3 expression was essential for mediating dHL-60 cell inflammatory cytokine expression. Performing mechanistic experiments, we found that glycolytic metabolism with PFKFB3 involvement supported inflammatory cytokine expression. In summary, our study uncovers a mechanism by which GSEC lncRNA promotes neutrophil inflammatory activation in sepsis by supporting glycolytic metabolism with PFKFB3.
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Affiliation(s)
- Dadong Liu
- Department of Critical Care Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Wen Sun
- Department of Critical Care Medicine, Jurong Hospital Affiliated to Jiangsu University, Zhenjiang, China
| | - Danying Zhang
- Department of Laboratory Medicine, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Zongying Yu
- Department of Electrocardiograph, The No. 4 Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Weiting Qin
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Yishu Liu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Kai Zhang
- Department of Otorhinolaryngology and Head and Neck Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, China.
| | - Jiangtao Yin
- Department of Critical Care Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China.
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25
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Chen Q, Shao X, He Y, Lu E, Zhu L, Tang W. Norisoboldine Attenuates Sepsis-Induced Acute Lung Injury by Modulating Macrophage Polarization via PKM2/HIF-1α/PGC-1α Pathway. Biol Pharm Bull 2021; 44:1536-1547. [PMID: 34602563 DOI: 10.1248/bpb.b21-00457] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study aimed to investigate the effect of norisopoldine (NOR) on acute lung injury in septic mice. Lipopolysaccharide (LPS) was used to establish sepsis induced acute lung injury (ALI) in mice. The dry and wet weight of mice lung was detected, and the pathological changes of lung were observed by hematoxylin and eosin (H&E) staining. Bronchoalveolar lavage fluid (BALF) was detected. Inflammatory factors in BALF were detected by enzyme-linked immunosorbent assay (ELISA). The polarization of macrophages in lung tissue was detected by flow cytometry. The markers of M1 and M2 macrophages were detected by RT-PCR. LPS induced RAW264.7 cells were treated with NOR. Inflammatory response, macrophage polarization, glycolysis, and M2 pyruvate kinase (PKM2)/hypoxia inducible factor-1α (HIF-1α)/peroxisome proliferator activated receptor-γ co-activator 1-α (PGC-1α) signaling pathway were detected. NOR could effectively alleviate sepsis induced ALI, and reduce the number of total cells, total protein concentration, neutrophils, macrophages in BALF. NOR decreased the level of inflammatory factors and promoted macrophages from M1 to M2 type in vivo and vitro. Moreover, NOR could activated PKM2, and inhibited PKM2 from cytoplasm to nuclear, attenuated HIF-1α expression, and increased PGC-1α and peroxisome proliferator-activated receptor (PPAR)-γ expression. In addition, NOR inhibited glycolysis and promoted oxidative phosphorylation in RAW264.7 cells. Furthermore, PKM2 inhibitors could reverse the effect of NOR on PKM2/HIF-1α/PGC-1α signaling pathway in RAW264.7 cells. NOR alleviated sepsis induced AIL in mice, inhibited the inflammatory response, promote M2 polarization of macrophages through regulating PKM2/HIF-1α/PGC-1α signaling pathway.
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Affiliation(s)
- Qi Chen
- Department of Critical Care Medicine, the First People's Hospital of Fuyang District
| | - Xuebo Shao
- Department of Critical Care Medicine, the First People's Hospital of Fuyang District
| | - Yanyan He
- Department of Critical Care Medicine, the First People's Hospital of Fuyang District
| | - Enkui Lu
- Department of Critical Care Medicine, the First People's Hospital of Fuyang District
| | - Lijun Zhu
- Department of Critical Care Medicine, the First People's Hospital of Fuyang District
| | - Weidong Tang
- Department of Critical Care Medicine, the First People's Hospital of Fuyang District
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26
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Xu J, Wang L, Yang Q, Ma Q, Zhou Y, Cai Y, Mao X, Da Q, Lu T, Su Y, Bagi Z, Lucas R, Liu Z, Hong M, Ouyang K, Huo Y. Deficiency of Myeloid Pfkfb3 Protects Mice From Lung Edema and Cardiac Dysfunction in LPS-Induced Endotoxemia. Front Cardiovasc Med 2021; 8:745810. [PMID: 34660743 PMCID: PMC8511447 DOI: 10.3389/fcvm.2021.745810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/06/2021] [Indexed: 12/29/2022] Open
Abstract
Sepsis, a pathology resulting from excessive inflammatory response that leads to multiple organ failure, is a major cause of mortality in intensive care units. Macrophages play an important role in the pathophysiology of sepsis. Accumulating evidence has suggested an upregulated rate of aerobic glycolysis as a key common feature of activated proinflammatory macrophages. Here, we identified a crucial role of myeloid 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 (Pfkfb3), a glycolytic activator in lipopolysaccharide (LPS)-induced endotoxemia in mice. Pfkfb3 expression is substantially increased in bone marrow derived macrophages (BMDMs) treated with LPS in vitro and in lung macrophages of mice challenged with LPS in vivo. Myeloid-specific knockout of Pfkfb3 in mice protects against LPS-induced lung edema, cardiac dysfunction and hypotension, which were associated with decreased expression of interleukin 1 beta (Il1b), interleukin 6 (Il6) and nitric oxide synthase 2 (Nos2), as well as reduced infiltration of neutrophils and macrophages in lung tissue. Pfkfb3 ablation in cultured macrophages attenuated LPS-induced glycolytic flux, resulting in a decrease in proinflammatory gene expression. Mechanistically, Pfkfb3 ablation or inhibition with a Pfkfb3 inhibitor AZ26 suppresses LPS-induced proinflammatory gene expression via the NF-κB signaling pathway. In summary, our study reveals the critical role of Pfkfb3 in LPS-induced sepsis via reprogramming macrophage metabolism and regulating proinflammatory gene expression. Therefore, PFKFB3 is a potential target for the prevention and treatment of inflammatory diseases such as sepsis.
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Affiliation(s)
- Jiean Xu
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
- Department of Cellular Biology and Anatomy, Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Lina Wang
- Department of Cellular Biology and Anatomy, Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Qiuhua Yang
- Department of Cellular Biology and Anatomy, Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Qian Ma
- Department of Cellular Biology and Anatomy, Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Yaqi Zhou
- Department of Cellular Biology and Anatomy, Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Yongfeng Cai
- Department of Cellular Biology and Anatomy, Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Xiaoxiao Mao
- Department of Cellular Biology and Anatomy, Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Qingen Da
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, China
| | - Tammy Lu
- Oxford College, Emory University, Oxford, GA, United States
| | - Yunchao Su
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Zsolt Bagi
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Rudolf Lucas
- Department of Cellular Biology and Anatomy, Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Zhiping Liu
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Mei Hong
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Kunfu Ouyang
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, China
| | - Yuqing Huo
- Department of Cellular Biology and Anatomy, Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
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27
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Tan S, Guo X, Li M, Wang T, Wang Z, Li C, Wu Z, Li N, Gao L, Liang X, Ma C. Transcription factor Zhx2 restricts NK cell maturation and suppresses their antitumor immunity. J Exp Med 2021; 218:e20210009. [PMID: 34279541 PMCID: PMC8292132 DOI: 10.1084/jem.20210009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 05/05/2021] [Accepted: 06/17/2021] [Indexed: 02/03/2023] Open
Abstract
The maturation and functional competence of natural killer (NK) cells is a tightly controlled process that relies on transcription factors (TFs). Here, we identify transcriptional repressor zinc fingers and homeoboxes 2 (Zhx2) as a novel regulator that restricts NK cell maturation and function. Mice with Zhx2 conditional deletion in NK cells (Zhx2Δ/Δ) showed accumulation of matured NK cells. Loss of Zhx2 enhanced NK cell survival and NK cell response to IL-15. Transcriptomic analysis revealed Zeb2, a key TF in NK cell terminal maturation, as a direct downstream target of Zhx2. Therapeutically, transfer of Zhx2-deficient NK cells resulted in inhibition of tumor growth and metastasis in different murine models. Our findings collectively unmask a previously unrecognized role of Zhx2 as a novel negative regulator in NK cell maturation and highlight its therapeutic potential as a promising strategy to enhance NK cell-mediated tumor surveillance.
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Affiliation(s)
- Siyu Tan
- Key Laboratory for Experimental Teratology of the Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province, and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Xiaowei Guo
- Key Laboratory for Experimental Teratology of the Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province, and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Mengzhen Li
- Key Laboratory for Experimental Teratology of the Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province, and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Tixiao Wang
- Key Laboratory for Experimental Teratology of the Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province, and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Zehua Wang
- Key Laboratory for Experimental Teratology of the Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province, and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Chunyang Li
- Key Laboratory for Experimental Teratology of the Ministry of Education, Department of Histology and Embryology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Zhuanchang Wu
- Key Laboratory for Experimental Teratology of the Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province, and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
| | - Nailin Li
- Clinical Pharmacology Group, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Lifen Gao
- Key Laboratory for Experimental Teratology of the Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province, and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Jinan, Shandong, China
| | - Xiaohong Liang
- Key Laboratory for Experimental Teratology of the Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province, and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Jinan, Shandong, China
| | - Chunhong Ma
- Key Laboratory for Experimental Teratology of the Ministry of Education, Key Laboratory of Infection and Immunity of Shandong Province, and Department of Immunology, School of Basic Medical Sciences, Cheeloo Medical College of Shandong University, Jinan, Shandong, China
- Advanced Medical Research Institute, Shandong University, Jinan, Shandong, China
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Jinan, Shandong, China
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28
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Appiah MG, Park EJ, Akama Y, Nakamori Y, Kawamoto E, Gaowa A, Shimaoka M. Cellular and Exosomal Regulations of Sepsis-Induced Metabolic Alterations. Int J Mol Sci 2021; 22:ijms22158295. [PMID: 34361061 PMCID: PMC8347112 DOI: 10.3390/ijms22158295] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/23/2021] [Accepted: 07/28/2021] [Indexed: 12/11/2022] Open
Abstract
Sepsis is a sustained systemic inflammatory condition involving multiple organ failures caused by dysregulated immune response to infections. Sepsis induces substantial changes in energy demands at the cellular level leading to metabolic reprogramming in immune cells and stromal cells. Although sepsis-associated organ dysfunction and mortality have been partly attributed to the initial acute hyperinflammation and immunosuppression precipitated by a dysfunction in innate and adaptive immune responses, the late mortality due to metabolic dysfunction and immune paralysis currently represent the major problem in clinics. It is becoming increasingly recognized that intertissue and/or intercellular metabolic crosstalk via endocrine factors modulates maintenance of homeostasis, and pathological events in sepsis and other inflammatory diseases. Exosomes have emerged as a novel means of intercellular communication in the regulation of cellular metabolism, owing to their capacity to transfer bioactive payloads such as proteins, lipids, and nucleic acids to their target cells. Recent evidence demonstrates transfer of intact metabolic intermediates from cancer-associated fibroblasts via exosomes to modify metabolic signaling in recipient cells and promote cancer progression. Here, we review the metabolic regulation of endothelial cells and immune cells in sepsis and highlight the role of exosomes as mediators of cellular metabolic signaling in sepsis.
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Affiliation(s)
- Michael G. Appiah
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City 514-8507, Mie, Japan; (M.G.A.); (Y.A.); (Y.N.); (E.K.); (A.G.)
| | - Eun Jeong Park
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City 514-8507, Mie, Japan; (M.G.A.); (Y.A.); (Y.N.); (E.K.); (A.G.)
- Correspondence: (E.J.P.); (M.S.); Tel.: +81-59-231-6408 (E.J.P.); +81-59-231-5036 (M.S.)
| | - Yuichi Akama
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City 514-8507, Mie, Japan; (M.G.A.); (Y.A.); (Y.N.); (E.K.); (A.G.)
- Department of Emergency and Disaster Medicine, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City 514-8507, Mie, Japan
| | - Yuki Nakamori
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City 514-8507, Mie, Japan; (M.G.A.); (Y.A.); (Y.N.); (E.K.); (A.G.)
| | - Eiji Kawamoto
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City 514-8507, Mie, Japan; (M.G.A.); (Y.A.); (Y.N.); (E.K.); (A.G.)
- Department of Emergency and Disaster Medicine, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City 514-8507, Mie, Japan
| | - Arong Gaowa
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City 514-8507, Mie, Japan; (M.G.A.); (Y.A.); (Y.N.); (E.K.); (A.G.)
| | - Motomu Shimaoka
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu-City 514-8507, Mie, Japan; (M.G.A.); (Y.A.); (Y.N.); (E.K.); (A.G.)
- Correspondence: (E.J.P.); (M.S.); Tel.: +81-59-231-6408 (E.J.P.); +81-59-231-5036 (M.S.)
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29
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Kolliniati O, Ieronymaki E, Vergadi E, Tsatsanis C. Metabolic Regulation of Macrophage Activation. J Innate Immun 2021; 14:51-68. [PMID: 34247159 DOI: 10.1159/000516780] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 04/19/2021] [Indexed: 11/19/2022] Open
Abstract
Macrophages, the central mediators of innate immune responses, being in the first-line of defense, they have to readily respond to pathogenic or tissue damage signals to initiate the inflammatory cascade. Such rapid responses require energy to support orchestrated production of pro-inflammatory mediators and activation of phagocytosis. Being a cell type that is present in diverse environments and conditions, macrophages have to adapt to different nutritional resources. Thus, macrophages have developed plasticity and are capable of utilizing energy at both normoxic and hypoxic conditions and in the presence of varying concentrations of glucose or other nutrients. Such adaptation is reflected on changes in signaling pathways that modulate responses, accounting for the different activation phenotypes observed. Macrophage metabolism has been tightly associated with distinct activation phenotypes within the range of M1-like and M2-like types. In the context of diseases, systemic changes also affect macrophage metabolism, as in diabetes and insulin resistance, which results in altered metabolism and distinct activation phenotypes in the adipose tissue or in the periphery. In the context of solid tumors, tumor-associated macrophages adapt in the hypoxic environment, which results in metabolic changes that are reflected on an activation phenotype that supports tumor growth. Coordination of environmental and pathogenic signals determines macrophage metabolism, which in turn shapes the type and magnitude of the response. Therefore, modulating macrophage metabolism provides a potential therapeutic approach for inflammatory diseases and cancer.
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Affiliation(s)
- Ourania Kolliniati
- Laboratory of Clinical Chemistry, Medical School, University of Crete, Heraklion, Greece.,Department of Pediatrics, Medical School, University of Crete, Heraklion, Greece.,Institute of Molecular Biology and Biotechnology, FORTH, Heraklion, Greece
| | - Eleftheria Ieronymaki
- Laboratory of Clinical Chemistry, Medical School, University of Crete, Heraklion, Greece.,Institute of Molecular Biology and Biotechnology, FORTH, Heraklion, Greece
| | - Eleni Vergadi
- Department of Pediatrics, Medical School, University of Crete, Heraklion, Greece
| | - Christos Tsatsanis
- Laboratory of Clinical Chemistry, Medical School, University of Crete, Heraklion, Greece.,Institute of Molecular Biology and Biotechnology, FORTH, Heraklion, Greece
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30
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Genetic Variation in PFKFB3 Impairs Antifungal Immunometabolic Responses and Predisposes to Invasive Pulmonary Aspergillosis. mBio 2021; 12:e0036921. [PMID: 34044589 PMCID: PMC8263003 DOI: 10.1128/mbio.00369-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Activation of immune cells in response to fungal infection involves the reprogramming of their cellular metabolism to support antimicrobial effector functions. Although metabolic pathways such as glycolysis are known to represent critical regulatory nodes in antifungal immunity, it remains undetermined whether these are differentially regulated at the interindividual level. In this study, we identify a key role for 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 (PFKFB3) in the immunometabolic responses to Aspergillus fumigatus. A genetic association study performed in 439 recipients of allogeneic hematopoietic stem cell transplantation (HSCT) and corresponding donors revealed that the donor, but not recipient, rs646564 variant in the PFKFB3 gene increased the risk of invasive pulmonary aspergillosis (IPA) after transplantation. The risk genotype impaired the expression of PFKFB3 by human macrophages in response to fungal infection, which was correlated with a defective activation of glycolysis and the ensuing antifungal effector functions. In patients with IPA, the risk genotype was associated with lower concentrations of cytokines in the bronchoalveolar lavage fluid samples. Collectively, these findings demonstrate the important contribution of genetic variation in PFKFB3 to the risk of IPA in patients undergoing HSCT and support its inclusion in prognostic tools to predict the risk of fungal infection in this clinical setting. IMPORTANCE The fungal pathogen Aspergillus fumigatus can cause severe and life-threatening forms of infection in immunocompromised patients. Activation of glycolysis is essential for innate immune cells to mount effective antifungal responses. In this study, we report the contribution of genetic variation in the key glycolytic activator 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 (PFKFB3) to the risk of invasive pulmonary aspergillosis (IPA) after allogeneic hematopoietic stem cell transplantation. The PFKFB3 genotype associated with increased risk of infection was correlated with an impairment of the antifungal effector functions of macrophages in vitro and in patients with IPA. This work highlights the clinical relevance of genetic variation in PFKFB3 to the risk of IPA and supports its integration in risk stratification and preemptive measures for patients at high risk of IPA.
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31
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Nain Z, Rana HK, Liò P, Islam SMS, Summers MA, Moni MA. Pathogenetic profiling of COVID-19 and SARS-like viruses. Brief Bioinform 2021; 22:1175-1196. [PMID: 32778874 PMCID: PMC7454314 DOI: 10.1093/bib/bbaa173] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/23/2020] [Accepted: 07/08/2020] [Indexed: 12/15/2022] Open
Abstract
The novel coronavirus (2019-nCoV) has recently emerged, causing COVID-19 outbreaks and significant societal/global disruption. Importantly, COVID-19 infection resembles SARS-like complications. However, the lack of knowledge about the underlying genetic mechanisms of COVID-19 warrants the development of prospective control measures. In this study, we employed whole-genome alignment and digital DNA-DNA hybridization analyses to assess genomic linkage between 2019-nCoV and other coronaviruses. To understand the pathogenetic behavior of 2019-nCoV, we compared gene expression datasets of viral infections closest to 2019-nCoV with four COVID-19 clinical presentations followed by functional enrichment of shared dysregulated genes. Potential chemical antagonists were also identified using protein-chemical interaction analysis. Based on phylogram analysis, the 2019-nCoV was found genetically closest to SARS-CoVs. In addition, we identified 562 upregulated and 738 downregulated genes (adj. P ≤ 0.05) with SARS-CoV infection. Among the dysregulated genes, SARS-CoV shared ≤19 upregulated and ≤22 downregulated genes with each of different COVID-19 complications. Notably, upregulation of BCL6 and PFKFB3 genes was common to SARS-CoV, pneumonia and severe acute respiratory syndrome, while they shared CRIP2, NSG1 and TNFRSF21 genes in downregulation. Besides, 14 genes were common to different SARS-CoV comorbidities that might influence COVID-19 disease. We also observed similarities in pathways that can lead to COVID-19 and SARS-CoV diseases. Finally, protein-chemical interactions suggest cyclosporine, resveratrol and quercetin as promising drug candidates against COVID-19 as well as other SARS-like viral infections. The pathogenetic analyses, along with identified biomarkers, signaling pathways and chemical antagonists, could prove useful for novel drug development in the fight against the current global 2019-nCoV pandemic.
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Affiliation(s)
- Zulkar Nain
- Department of Genetic Engineering and Biotechnology, East West University, Bangladesh
| | - Humayan Kabir Rana
- Department of Computer Science and Engineering, Green University of Bangladesh
| | - Pietro Liò
- Artificial Intelligence Group at the University of Cambridge
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