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Qu Y, Yang H, Li S, Li L, Li Y, Wang D. The involvement of Th1 cell differentiation in the anti-tumor effect of purified polysaccharide from Sanghuangporus vaninii in colorectal cancer via multi-omics analysis. Int J Biol Macromol 2023; 237:123927. [PMID: 36889619 DOI: 10.1016/j.ijbiomac.2023.123927] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023]
Abstract
Sanghuangporus vaninii is a medicinal mushroom, which has been used as a treatment for various diseases; however, the therapeutic potential and mechanism of action of S. vaninii in colorectal cancer (CRC) remain unknown. Herein, human colon adenocarcinoma cells were used to analyze the anti-CRC effects of the purified polysaccharide of S. vaninii (SVP-A-1) in vitro. In SVP-A-1-treated B6/JGpt-Apcem1Cin (Min)/Gpt male (ApcMin/+) mice, 16S rRNA sequencing was performed on cecal feces, metabolites were examined in serum, and LC-MS/MS protein detection was performed in colorectal tumors. Protein changes were further confirmed by various biochemical detection methods. Water-soluble SVP-A-1 with a molecular weight of 22.5 kDa was first obtained. SVP-A-1 prevented gut microbiota dysbiosis related to metabolic pathways of L-arginine biosynthesis, increased L-citrulline levels in the serum of ApcMin/+ mice, mediated L-arginine synthesis, and improved antigen presentation in dendritic cells and activated CD4+ T cells; the resulting Th1 cells released IFN-γ and TNF-α to act on tumor cells and promoted the sensitivity of tumor cells to cytotoxic T lymphocytes. In summary, SVP-A-1 exerted anti-CRC effects and has excellent potential for CRC treatment.
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Affiliation(s)
- Yidi Qu
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Hongxin Yang
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Siyu Li
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Lanzhou Li
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
| | - Yu Li
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
| | - Di Wang
- School of Life Sciences, Jilin University, Changchun 130012, China; Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
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202
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Hsieh Y, Tsai T, Huang S, Heng J, Huang Y, Tsai P, Tu C, Chao T, Tsai Y, Chang P, Lee C, Yu G, Chang S, Dzhagalov IL, Hsu C. IFN-stimulated metabolite transporter ENT3 facilitates viral genome release. EMBO Rep 2023; 24:e55286. [PMID: 36652307 PMCID: PMC9986816 DOI: 10.15252/embr.202255286] [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: 04/21/2022] [Revised: 12/19/2022] [Accepted: 12/19/2022] [Indexed: 01/19/2023] Open
Abstract
An increasing amount of evidence emphasizes the role of metabolic reprogramming in immune cells to fight infections. However, little is known about the regulation of metabolite transporters that facilitate and support metabolic demands. In this study, we found that the expression of equilibrative nucleoside transporter 3 (ENT3, encoded by solute carrier family 29 member 3, Slc29a3) is part of the innate immune response, which is rapidly upregulated upon pathogen invasion. The transcription of Slc29a3 is directly regulated by type I interferon-induced signaling, demonstrating that this metabolite transporter is an interferon-stimulated gene (ISG). Suprisingly, we unveil that several viruses, including SARS-CoV-2, require ENT3 to facilitate their entry into the cytoplasm. The removal or suppression of Slc29a3 expression is sufficient to significantly decrease viral replication in vitro and in vivo. Our study reveals that ENT3 is a pro-viral ISG co-opted by some viruses to gain a survival advantage.
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Affiliation(s)
- Yu‐Ting Hsieh
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Tsung‐Lin Tsai
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
- Taiwan International Graduate Program in Molecular MedicineNational Yang Ming Chiao Tung University and Academia SinicaTaipeiTaiwan
| | - Shen‐Yan Huang
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Jian‐Wen Heng
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Yu‐Chia Huang
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Pei‐Yuan Tsai
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Chia‐Chun Tu
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | | | - Ya‐Min Tsai
- Department of Clinical Laboratory Sciences and Medical BiotechnologyNational Taiwan University College of MedicineTaipeiTaiwan
| | - Pei‐Ching Chang
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Chien‐Kuo Lee
- Graduate Institute of Immunology, College of MedicineNational Taiwan UniversityTaipeiTaiwan
| | - Guann‐Yi Yu
- National Institute of Infectious Diseases and Vaccinology, National Health Research InstitutesMiaoliTaiwan
| | - Sui‐Yuan Chang
- Department of Clinical Laboratory Sciences and Medical BiotechnologyNational Taiwan University College of MedicineTaipeiTaiwan
- Department of Laboratory MedicineNational Taiwan University Hospital and National Taiwan University College of MedicineTaipeiTaiwan
| | - Ivan L. Dzhagalov
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
| | - Chia‐Lin Hsu
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung UniversityTaipeiTaiwan
- Taiwan International Graduate Program in Molecular MedicineNational Yang Ming Chiao Tung University and Academia SinicaTaipeiTaiwan
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203
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Aryl hydrocarbon receptor activity downstream of IL-10 signaling is required to promote regulatory functions in human dendritic cells. Cell Rep 2023; 42:112193. [PMID: 36870061 PMCID: PMC10066577 DOI: 10.1016/j.celrep.2023.112193] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 12/06/2022] [Accepted: 02/14/2023] [Indexed: 03/05/2023] Open
Abstract
Interleukin (IL)-10 is a main player in peripheral immune tolerance, the physiological mechanism preventing immune reactions to self/harmless antigens. Here, we investigate IL-10-induced molecular mechanisms generating tolerogenic dendritic cells (tolDC) from monocytes. Using genomic studies, we show that IL-10 induces a pattern of accessible enhancers exploited by aryl hydrocarbon receptor (AHR) to promote expression of a set of core genes. We demonstrate that AHR activity occurs downstream of IL-10 signaling in myeloid cells and is required for the induction of tolerogenic activities in DC. Analyses of circulating DCs show that IL-10/AHR genomic signature is active in vivo in health. In multiple sclerosis patients, we instead observe significantly altered signature correlating with functional defects and reduced frequencies of IL-10-induced-tolDC in vitro and in vivo. Our studies identify molecular mechanisms controlling tolerogenic activities in human myeloid cells and may help in designing therapies to re-establish immune tolerance.
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204
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Huang P, Wang M, Lu Z, Shi S, Wei X, Bi C, Wang G, Liu H, Hu T, Wang B. Putrescine accelerates the differentiation of bone marrow derived dendritic cells via inhibiting phosphorylation of STAT3 at Tyr705. Int Immunopharmacol 2023; 116:109739. [PMID: 36706590 DOI: 10.1016/j.intimp.2023.109739] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/12/2023] [Accepted: 01/12/2023] [Indexed: 01/27/2023]
Abstract
Dendritic cells (DCs) play pivotal roles in immune responses. The differentiation and function of DCs are regulated by environmental metabolites. Putrescine is ubiquitous in various metabolic microenvironments and its immunoregulation has been of increasing interest. However, the mechanisms associated with its DC-induced immunoregulation remain unclear. In this study, we found putrescine promoted induction of immature bone marrow derived DCs (BMDCs), along with the increased phagocytosis and migration, and altered cytokine secretion in immature BMDCs. Transcriptomic profiles indicated significantly impaired inflammatory-related pathways, elevated oxidative phosphorylation, and decreased p-STAT3 (Tyr705) expression. Additionally, putrescine performed minor influence on the lipopolysaccharide (LPS)-induced maturation of BMDCs but significantly impaired LPS-induced DC-elicited allogeneic T-cell proliferation as well as the cytokine secretion. Furthermore, molecular docking and dynamics on the conjugation between putrescine and STAT3 revealed that putrescine could be stably bound to the hydrophilic cavity in STAT3 and performed significant influence on the Tyr705 phosphorylation. CUT&Tag analysis uncovered altered motifs, downregulated IFN-γ response, and upregulated p53 pathway in Putrescine group compared with Control group. In summary, our results demonstrated for the first time that putrescine might accelerate the differentiation of BMDCs by inhibiting the phosphorylation of STAT3 at Tyr705. Given that both DCs and putrescine have ubiquitous and distinct roles in various immune responses and pathogeneses, our findings may provide more insights into polyamine immunoregulation on DCs, as well as distinct strategies in the clinical utilization of DCs by targeting polyamines.
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Affiliation(s)
- Panpan Huang
- Department of Immunology, Binzhou Medical University, Yantai, China
| | - Mengyang Wang
- Department of Immunology, Binzhou Medical University, Yantai, China
| | - Zixuan Lu
- Department of Immunology, Binzhou Medical University, Yantai, China
| | - Shaojie Shi
- Department of Immunology, Binzhou Medical University, Yantai, China
| | - Xia Wei
- Department of Immunology, Binzhou Medical University, Yantai, China
| | - Chenxiao Bi
- Department of Immunology, Binzhou Medical University, Yantai, China
| | - Guoyan Wang
- Medical Laboratory Science, Yantai Affiliated Hospital of ao'deBinzhou Medical University, Yantai, China
| | - Hong Liu
- The 2nd Medical College of Binzhou Medical University, Binzhou Medical University, Yantai, China
| | - Tao Hu
- Department of Immunology, Binzhou Medical University, Yantai, China.
| | - Bin Wang
- Department of Immunology, Binzhou Medical University, Yantai, China.
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205
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Li Y, Liu L, Li Y, Song W, Shao B, Li H, Lin W, Li Q, Shuai X, Bai M, Zhao B, Guo Y, Yuan Q, Wang Y. Alpha-ketoglutarate promotes alveolar bone regeneration by modulating M2 macrophage polarization. Bone Rep 2023; 18:101671. [PMID: 37007218 PMCID: PMC10064115 DOI: 10.1016/j.bonr.2023.101671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/07/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
Objectives Alpha-ketoglutarate (αKG) is an essential metabolite that plays a crucial role in skeletal homeostasis. Here we aim to investigate the effect of αKG on alveolar socket healing and reveal the underlying mechanism in the view of macrophage polarization. Methods In a murine model pretreated with or without αKG, mandibular first molars were extracted. Mandibular tissues were harvested for microCT and histological analyses. Immunofluorescence was used to evaluate macrophage polarization during healing process. Macrophages with αKG/vehicle supplementation in vitro were proceeded to quantitative real-time PCR and flow cytometry to further elucidate the mechanism. Results MicroCT and histological analyses showed accelerated healing and enhanced bone regeneration of extraction sockets in experimental group. αKG increased new bone volume in alveolar sockets and promoted the activity of both osteoblastogenesis and osteoclastogenesis. αKG administration reduced M1 pro-inflammatory macrophages in an early phase and promoted anti-inflammatory M2 macrophage polarization in a later phase. Consistently, the expressions of M2 marker genes were augmented in αKG group, while M1 marker genes were downregulated. Flow cytometry revealed the increased ratio of M2/M1 macrophages in cells treated with αKG. Conclusions αKG accelerates the healing process of extraction sockets via orchestrating macrophage activation, with promising therapeutic potential in oral clinics.
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206
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Nathan JA. Nitrosylation rewires metabolism. Nat Chem Biol 2023; 19:253-254. [PMID: 36266350 DOI: 10.1038/s41589-022-01169-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- James A Nathan
- Cambridge Institute of Therapeutic Immunology & Infectious Disease, Department of Medicine, University of Cambridge, Cambridge, UK.
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207
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Vrieling F, Stienstra R. Obesity and dysregulated innate immune responses: impact of micronutrient deficiencies. Trends Immunol 2023; 44:217-230. [PMID: 36709082 DOI: 10.1016/j.it.2023.01.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/06/2023] [Accepted: 01/07/2023] [Indexed: 01/28/2023]
Abstract
Obesity is associated with the development of various complications, including diabetes, atherosclerosis, and an increased risk for infections, driven by dysfunctional innate immune responses. Recent insights have revealed that the availability of nutrients is a key determinant of innate immune cell function. Although the presence of obesity is associated with overnutrition of macronutrients, several micronutrient deficiencies, including Vitamin D and zinc, are often present. Micronutrients have been attributed important immunomodulatory roles. In this review, we summarize current knowledge of the immunomodulatory effects of Vitamin D and zinc. We also suggest future lines of research to further improve our understanding of these micronutrients; this may serve as a stepping-stone to explore micronutrient supplementation to improve innate immune cell function during obesity.
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Affiliation(s)
- Frank Vrieling
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Rinke Stienstra
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands; Department of Internal Medicine, RadboudUMC, Nijmegen, The Netherlands.
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208
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Liu PS, Chen YT, Li X, Hsueh PC, Tzeng SF, Chen H, Shi PZ, Xie X, Parik S, Planque M, Fendt SM, Ho PC. CD40 signal rewires fatty acid and glutamine metabolism for stimulating macrophage anti-tumorigenic functions. Nat Immunol 2023; 24:452-462. [PMID: 36823405 PMCID: PMC9977680 DOI: 10.1038/s41590-023-01430-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 01/09/2023] [Indexed: 02/25/2023]
Abstract
Exposure of lipopolysaccharide triggers macrophage pro-inflammatory polarization accompanied by metabolic reprogramming, characterized by elevated aerobic glycolysis and a broken tricarboxylic acid cycle. However, in contrast to lipopolysaccharide, CD40 signal is able to drive pro-inflammatory and anti-tumorigenic polarization by some yet undefined metabolic programming. Here we show that CD40 activation triggers fatty acid oxidation (FAO) and glutamine metabolism to promote ATP citrate lyase-dependent epigenetic reprogramming of pro-inflammatory genes and anti-tumorigenic phenotypes in macrophages. Mechanistically, glutamine usage reinforces FAO-induced pro-inflammatory and anti-tumorigenic activation by fine-tuning the NAD+/NADH ratio via glutamine-to-lactate conversion. Genetic ablation of important metabolic enzymes involved in CD40-mediated metabolic reprogramming abolishes agonistic anti-CD40-induced antitumor responses and reeducation of tumor-associated macrophages. Together these data show that metabolic reprogramming, which includes FAO and glutamine metabolism, controls the activation of pro-inflammatory and anti-tumorigenic polarization, and highlight a therapeutic potential of metabolic preconditioning of tumor-associated macrophages before agonistic anti-CD40 treatments.
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Affiliation(s)
- Pu-Ste Liu
- Institute of Cellular and System Medicine, National Health Research Institute, Miaoli, Taiwan.
| | - Yi-Ting Chen
- Institute of Cellular and System Medicine, National Health Research Institute, Miaoli, Taiwan
| | - Xiaoyun Li
- Department of Fundamental Oncology, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
- Ludwig Lausanne Branch, Lausanne, Switzerland
| | - Pei-Chun Hsueh
- Department of Fundamental Oncology, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
- Ludwig Lausanne Branch, Lausanne, Switzerland
| | - Sheue-Fen Tzeng
- Department of Fundamental Oncology, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
- Ludwig Lausanne Branch, Lausanne, Switzerland
| | - Hsi Chen
- Institute of Cellular and System Medicine, National Health Research Institute, Miaoli, Taiwan
| | - Pei-Zhu Shi
- Institute of Cellular and System Medicine, National Health Research Institute, Miaoli, Taiwan
| | - Xin Xie
- School of Life Science, Shaoxing University, Shaoxing, People's Republic of China
| | - Sweta Parik
- Laboratory of Cellular Metabolism and Metabolic Regulation, Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Mélanie Planque
- Laboratory of Cellular Metabolism and Metabolic Regulation, Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Sarah-Maria Fendt
- Laboratory of Cellular Metabolism and Metabolic Regulation, Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Ping-Chih Ho
- Department of Fundamental Oncology, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.
- Ludwig Lausanne Branch, Lausanne, Switzerland.
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209
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Shi ZY, Yang C, Lu LY, Lin CX, Liang S, Li G, Zhou HM, Zheng JM. Inhibition of hexokinase 2 with 3-BrPA promotes MDSCs differentiation and immunosuppressive function. Cell Immunol 2023; 385:104688. [PMID: 36774675 DOI: 10.1016/j.cellimm.2023.104688] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 12/08/2022] [Accepted: 02/03/2023] [Indexed: 02/08/2023]
Abstract
The adoptive transfer of ex vivo generated myeloid-derived suppressor cells (MDSCs) may be a promising therapeutic strategy for preventing allograft rejection after solid organ transplantation. Currently, the precise role of immune-metabolic pathways in the differentiation and function of MDSCs is not fully understood. Hexokinase 2 (HK2) is an isoform of hexokinase and is a key enzyme involved in the increased aerobic glycolysis of different immune cells during their activation and function. Here, we demonstrate that the addition of HK2 inhibitor 3-Bromopyruvic acid (3-BrPA) into traditional MDSCs induction system in vitro significantly promoted MDSCs production and enhanced their immunosuppressive function. Treatment with 3-BrPA increased the expression of MDSC-related immunosuppressive molecules, such as iNOS, Arg1, and CXCR2. Moreover, the adoptive transfer of 3-BrPA-treated MDSCs significantly prolonged the survival time of mouse heart allografts. This study provides a novel strategy to solve the problems of harvesting enough autologous cells for MDSC production from sick patients, and producing functionally enhanced MDSCs for preventing graft rejection and inducing tolerance.
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Affiliation(s)
- Zhan-Yue Shi
- Department of Cardiothoracic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chao Yang
- Department of Organ Transplantation, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510000, China
| | - Liu-Yi Lu
- Department of Cardiothoracic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Can-Xiang Lin
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Shi Liang
- Department of Cardiothoracic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Gen Li
- Department of Cardiothoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong-Min Zhou
- Department of Cardiothoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Jun-Meng Zheng
- Department of Cardiothoracic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
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210
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Sánchez-Rodríguez R, Tezze C, Agnellini AHR, Angioni R, Venegas FC, Cioccarelli C, Munari F, Bertoldi N, Canton M, Desbats MA, Salviati L, Gissi R, Castegna A, Soriano ME, Sandri M, Scorrano L, Viola A, Molon B. OPA1 drives macrophage metabolism and functional commitment via p65 signaling. Cell Death Differ 2023; 30:742-752. [PMID: 36307526 PMCID: PMC9984365 DOI: 10.1038/s41418-022-01076-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 09/26/2022] [Accepted: 10/06/2022] [Indexed: 11/05/2022] Open
Abstract
Macrophages are essential players for the host response against pathogens, regulation of inflammation and tissue regeneration. The wide range of macrophage functions rely on their heterogeneity and plasticity that enable a dynamic adaptation of their responses according to the surrounding environmental cues. Recent studies suggest that metabolism provides synergistic support for macrophage activation and elicitation of desirable immune responses; however, the metabolic pathways orchestrating macrophage activation are still under scrutiny. Optic atrophy 1 (OPA1) is a mitochondria-shaping protein controlling mitochondrial fusion, cristae biogenesis and respiration; clear evidence shows that the lack or dysfunctional activity of this protein triggers the accumulation of metabolic intermediates of the TCA cycle. In this study, we show that OPA1 has a crucial role in macrophage activation. Selective Opa1 deletion in myeloid cells impairs M1-macrophage commitment. Mechanistically, Opa1 deletion leads to TCA cycle metabolite accumulation and defective NF-κB signaling activation. In an in vivo model of muscle regeneration upon injury, Opa1 knockout macrophages persist within the damaged tissue, leading to excess collagen deposition and impairment in muscle regeneration. Collectively, our data indicate that OPA1 is a key metabolic driver of macrophage functions.
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Affiliation(s)
- Ricardo Sánchez-Rodríguez
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
| | - Caterina Tezze
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy
- Veneto Institute of Molecular Medicine, 35129, Padova, Italy
| | | | - Roberta Angioni
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
| | - Francisca C Venegas
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
| | - Chiara Cioccarelli
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
| | - Fabio Munari
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
| | - Nicole Bertoldi
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
| | - Marcella Canton
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
| | - Maria Andrea Desbats
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Leonardo Salviati
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Rosanna Gissi
- Department of Biosciences, Biotechnologies and Environment, 70125, Bari, Italy
| | - Alessandra Castegna
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy
- Department of Biosciences, Biotechnologies and Environment, 70125, Bari, Italy
| | | | - Marco Sandri
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy
- Veneto Institute of Molecular Medicine, 35129, Padova, Italy
- Department of Medicine, McGill University, Montreal, Montreal (Quebec), H4A 3J1, Canada
| | - Luca Scorrano
- Department of Biology, University of Padova, 35131, Padova, Italy
| | - Antonella Viola
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy.
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy.
| | - Barbara Molon
- Department of Biomedical Sciences, University of Padova, 35131, Padova, Italy.
- Istituto di Ricerca Pediatrica IRP- Fondazione Città della Speranza, 35127, Padova, Italy.
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211
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Razi S, Yaghmoorian Khojini J, Kargarijam F, Panahi S, Tahershamsi Z, Tajbakhsh A, Gheibihayat SM. Macrophage efferocytosis in health and disease. Cell Biochem Funct 2023; 41:152-165. [PMID: 36794573 DOI: 10.1002/cbf.3780] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 02/17/2023]
Abstract
Creating cellular homeostasis within a defined tissue typically relates to the processes of apoptosis and efferocytosis. A great example here is cell debris that must be removed to prevent unwanted inflammatory responses and then reduce autoimmunity. In view of that, defective efferocytosis is often assumed to be responsible for the improper clearance of apoptotic cells (ACs). This predicament triggers off inflammation and even results in disease development. Any disruption of phagocytic receptors, molecules as bridging groups, or signaling routes can also inhibit macrophage efferocytosis and lead to the impaired clearance of the apoptotic body. In this line, macrophages as professional phagocytic cells take the lead in the efferocytosis process. As well, insufficiency in macrophage efferocytosis facilitates the spread of a wide variety of diseases, including neurodegenerative diseases, kidney problems, types of cancer, asthma, and the like. Establishing the functions of macrophages in this respect can be thus useful in the treatment of many diseases. Against this background, this review aimed to recapitulate the knowledge about the mechanisms related to macrophage polarization under physiological or pathological conditions, and shed light on its interaction with efferocytosis.
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Affiliation(s)
- Shokufeh Razi
- Department of Genetics, Faculty of Basic Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Javad Yaghmoorian Khojini
- Department of Medical Biotechnology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fateme Kargarijam
- Department of Biotechnology, Faculty of Sciences and Advanced Technology in Biology, University of Science and Culture, Tehran, Iran
| | - Susan Panahi
- Department of Microbiology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Zahra Tahershamsi
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amir Tajbakhsh
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Mohammad Gheibihayat
- Department of Medical Biotechnology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Munich, Germany
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212
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Wolfschmitt EM, Hogg M, Vogt JA, Zink F, Wachter U, Hezel F, Zhang X, Hoffmann A, Gröger M, Hartmann C, Gässler H, Datzmann T, Merz T, Hellmann A, Kranz C, Calzia E, Radermacher P, Messerer DAC. The effect of sodium thiosulfate on immune cell metabolism during porcine hemorrhage and resuscitation. Front Immunol 2023; 14:1125594. [PMID: 36911662 PMCID: PMC9996035 DOI: 10.3389/fimmu.2023.1125594] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/13/2023] [Indexed: 02/25/2023] Open
Abstract
Introduction Sodium thiosulfate (Na2S2O3), an H2S releasing agent, was shown to be organ-protective in experimental hemorrhage. Systemic inflammation activates immune cells, which in turn show cell type-specific metabolic plasticity with modifications of mitochondrial respiratory activity. Since H2S can dose-dependently stimulate or inhibit mitochondrial respiration, we investigated the effect of Na2S2O3 on immune cell metabolism in a blinded, randomized, controlled, long-term, porcine model of hemorrhage and resuscitation. For this purpose, we developed a Bayesian sampling-based model for 13C isotope metabolic flux analysis (MFA) utilizing 1,2-13C2-labeled glucose, 13C6-labeled glucose, and 13C5-labeled glutamine tracers. Methods After 3 h of hemorrhage, anesthetized and surgically instrumented swine underwent resuscitation up to a maximum of 68 h. At 2 h of shock, animals randomly received vehicle or Na2S2O3 (25 mg/kg/h for 2 h, thereafter 100 mg/kg/h until 24 h after shock). At three time points (prior to shock, 24 h post shock and 64 h post shock) peripheral blood mononuclear cells (PBMCs) and granulocytes were isolated from whole blood, and cells were investigated regarding mitochondrial oxygen consumption (high resolution respirometry), reactive oxygen species production (electron spin resonance) and fluxes within the metabolic network (stable isotope-based MFA). Results PBMCs showed significantly higher mitochondrial O2 uptake and lowerO 2 • - production in comparison to granulocytes. We found that in response to Na2S2O3 administration, PBMCs but not granulocytes had an increased mitochondrial oxygen consumption combined with a transient reduction of the citrate synthase flux and an increase of acetyl-CoA channeled into other compartments, e.g., for lipid biogenesis. Conclusion In a porcine model of hemorrhage and resuscitation, Na2S2O3 administration led to increased mitochondrial oxygen consumption combined with stimulation of lipid biogenesis in PBMCs. In contrast, granulocytes remained unaffected. Granulocytes, on the other hand, remained unaffected.O 2 • - concentration in whole blood remained constant during shock and resuscitation, indicating a sufficient anti-oxidative capacity. Overall, our MFA model seems to be is a promising approach for investigating immunometabolism; especially when combined with complementary methods.
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Affiliation(s)
- Eva-Maria Wolfschmitt
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Melanie Hogg
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Josef Albert Vogt
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Fabian Zink
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Ulrich Wachter
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Felix Hezel
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Xiaomin Zhang
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Andrea Hoffmann
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Michael Gröger
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Clair Hartmann
- Clinic for Anesthesia and Intensive Care, University Hospital Ulm, Ulm, Germany
| | - Holger Gässler
- Department of Anaesthesiology, Intensive Care Medicine, Emergency Medicine and Pain Therapy, Federal Armed Forces Hospital Ulm, Ulm, Germany
| | - Thomas Datzmann
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
- Clinic for Anesthesia and Intensive Care, University Hospital Ulm, Ulm, Germany
| | - Tamara Merz
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Andreas Hellmann
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Ulm, Germany
| | - Christine Kranz
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Ulm, Germany
| | - Enrico Calzia
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - Peter Radermacher
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
| | - David Alexander Christian Messerer
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Ulm, Germany
- Clinic for Anesthesia and Intensive Care, University Hospital Ulm, Ulm, Germany
- Department of Transfusion Medicine and Hemostaseology, Friedrich-Alexander University Erlangen-Nuremberg, University Hospital Erlangen, Erlangen, Germany
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213
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Xie QM, Chen N, Song SM, Zhao CC, Ruan Y, Sha JF, Liu Q, Jiang XQ, Fei GH, Wu HM. Itaconate Suppresses the Activation of Mitochondrial NLRP3 Inflammasome and Oxidative Stress in Allergic Airway Inflammation. Antioxidants (Basel) 2023; 12:489. [PMID: 36830047 PMCID: PMC9951851 DOI: 10.3390/antiox12020489] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/08/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Itaconate has emerged as a novel anti-inflammatory and antioxidative endogenous metabolite, yet its role in allergic airway inflammation (AAI) and the underlying mechanism remains elusive. Here, the itaconate level in the lung was assessed by High Performance Liquid Chromatography (HPLC), and the effects of the Irg1/itaconate pathway on AAI and alveolar macrophage (AM) immune responses were evaluated using an ovalbumin (OVA)-induced AAI model established by wild type (WT) and Irg1-/- mice, while the mechanism of this process was investigated by metabolomics analysis, mitochondrial/cytosolic protein fractionation and transmission electron microscopy in the lung tissues. The results demonstrated that the Irg1 mRNA/protein expression and itaconate production in the lung were significantly induced by OVA. Itaconate ameliorated while Irg1 deficiency augmented AAI, and this may be attributed to the fact that itaconate suppressed mitochondrial events such as NLRP3 inflammasome activation, oxidative stress and metabolic dysfunction. Furthermore, we identified that the Irg1/itaconate pathway impacted the NLRP3 inflammasome activation and oxidative stress in AMs. Collectively, our findings provide evidence for the first time, supporting the conclusion that in the allergic lung, the itaconate level is markedly increased, which directly regulates AMs' immune responses. We therefore propose that the Irg1/itaconate pathway in AMs is a potential anti-inflammatory and anti-oxidative therapeutic target for AAI.
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Affiliation(s)
- Qiu-Meng Xie
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei 230022, China
| | - Ning Chen
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei 230022, China
| | - Si-Ming Song
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei 230022, China
| | - Cui-Cui Zhao
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei 230022, China
| | - Ya Ruan
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei 230022, China
| | - Jia-Feng Sha
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei 230022, China
| | - Qian Liu
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
- Department of Respiratory Medicine, The First Affiliated Hospital of University of Science and Technology of China, Hefei 230001, China
| | - Xu-Qin Jiang
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
- Department of Respiratory Medicine, The First Affiliated Hospital of University of Science and Technology of China, Hefei 230001, China
| | - Guang-He Fei
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei 230022, China
| | - Hui-Mei Wu
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road 218, Hefei 230022, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei 230022, China
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Antunes D, Gonçalves SM, Matzaraki V, Rodrigues CS, Gonçales RA, Rocha J, Sáiz J, Marques A, Torrado E, Silvestre R, Rodrigues F, van de Veerdonk FL, Barbas C, Netea MG, Kumar V, Cunha C, Carvalho A. Glutamine Metabolism Supports the Functional Activity of Immune Cells against Aspergillus fumigatus. Microbiol Spectr 2023; 11:e0225622. [PMID: 36475892 PMCID: PMC9927096 DOI: 10.1128/spectrum.02256-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The reprogramming of cellular metabolism of immune cells is an essential process in the regulation of antifungal immune responses. In particular, glucose metabolism has been shown to be required for protective immunity against infection with Aspergillus fumigatus. However, given the intricate cross talk between multiple metabolic networks and signals, it is likely that cellular metabolic pathways other than glycolysis are also relevant during fungal infection. In this study, we demonstrate that glutamine metabolism is required for the activation of macrophage effector functions against A. fumigatus. Glutamine metabolism was found to be upregulated early after fungal infection and glutamine depletion or the pharmacological inhibition of enzymes involved in its metabolism impaired phagocytosis and the production of both proinflammatory and T-cell-derived cytokines. In an in vivo model, inhibition of glutaminase increased susceptibility to experimental aspergillosis, as revealed by the increased fungal burden and inflammatory pathology, and the defective cytokine production in the lungs. Moreover, genetic variants in glutamine metabolism genes were found to regulate cytokine production in response to A. fumigatus stimulation. Taken together, our results demonstrate that glutamine metabolism represents an important component of the immunometabolic response of macrophages against A. fumigatus both in vitro and in vivo. IMPORTANCE The fungal pathogen Aspergillus fumigatus can cause severe and life-threatening forms of infection in immunocompromised patients. The reprogramming of cellular metabolism is essential for innate immune cells to mount effective antifungal responses. In this study, we report the pivotal contribution of glutaminolysis to the host defense against A. fumigatus. Glutamine metabolism was essential both in vitro as well as in in vivo models of infection, and genetic variants in human glutamine metabolism genes regulated cytokine production in response to fungal stimulation. This work highlights the relevance of glutaminolysis to the pathogenesis of aspergillosis and supports a role for interindividual genetic variation influencing glutamine metabolism in susceptibility to infection.
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Affiliation(s)
- Daniela Antunes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Samuel M. Gonçalves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Vasiliki Matzaraki
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Cláudia S. Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Relber A. Gonçales
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Joana Rocha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Jorge Sáiz
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo CEU, CEU Universities, Madrid, Spain
| | - António Marques
- Serviço de Imuno-Hemoterapia, Hospital de Braga, Braga, Portugal
| | - Egídio Torrado
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Ricardo Silvestre
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Fernando Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Frank L. van de Veerdonk
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Coral Barbas
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo CEU, CEU Universities, Madrid, Spain
| | - Mihai G. Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
- Department for Immunology and Metabolism, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Vinod Kumar
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Cristina Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
| | - Agostinho Carvalho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Guimarães/Braga, Portugal
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215
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Kolbinger A, Schäufele TJ, Steigerwald H, Friedel J, Pierre S, Geisslinger G, Scholich K. Eosinophil-derived IL-4 is necessary to establish the inflammatory structure in innate inflammation. EMBO Mol Med 2023; 15:e16796. [PMID: 36541656 PMCID: PMC9906331 DOI: 10.15252/emmm.202216796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022] Open
Abstract
Pathogen-induced inflammation comprises pro- and anti-inflammatory processes, which ensure pathogen removal and containment of the proinflammatory activities. Here, we aimed to identify the development of inflammatory microenvironments and their maintenance throughout the course of a toll-like receptor 2-mediated paw inflammation. Within 24 h after pathogen-injection, the immune cells were organized in three zones, which comprised a pathogen-containing "core-region", a bordering proinflammatory (PI)-region and an outer anti-inflammatory (AI)-region. Eosinophils were present in all three inflammatory regions and adapted their cytokine profile according to their localization. Eosinophil depletion reduced IL-4 levels and increased edema formation as well as mechanical and thermal hypersensitivities during resolution of inflammation. Also, in the absence of eosinophils PI- and AI-regions could not be determined anymore, neutrophil numbers increased, and efferocytosis as well as M2-macrophage polarization were reduced. IL-4 administration restored in eosinophil-depleted mice PI- and AI-regions, normalized neutrophil numbers, efferocytosis, M2-macrophage polarization as well as resolution of zymosan-induced hypersensitivity. In conclusion, IL-4-expressing eosinophils support the resolution of inflammation by enabling the development of an anti-inflammatory framework, which encloses proinflammatory regions.
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Affiliation(s)
- Anja Kolbinger
- Institute of Clinical Pharmacology, Goethe-University Frankfurt, Frankfurt, Germany
| | - Tim J Schäufele
- Institute of Clinical Pharmacology, Goethe-University Frankfurt, Frankfurt, Germany
| | - Hanna Steigerwald
- Institute of Clinical Pharmacology, Goethe-University Frankfurt, Frankfurt, Germany
| | - Joschua Friedel
- Institute of Clinical Pharmacology, Goethe-University Frankfurt, Frankfurt, Germany
| | - Sandra Pierre
- Institute of Clinical Pharmacology, Goethe-University Frankfurt, Frankfurt, Germany
| | - Gerd Geisslinger
- Institute of Clinical Pharmacology, Goethe-University Frankfurt, Frankfurt, Germany.,Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Frankfurt, Germany.,Fraunhofer Cluster of Excellence for Immune-Mediated Diseases CIMD, Frankfurt, Germany
| | - Klaus Scholich
- Institute of Clinical Pharmacology, Goethe-University Frankfurt, Frankfurt, Germany.,Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Frankfurt, Germany.,Fraunhofer Cluster of Excellence for Immune-Mediated Diseases CIMD, Frankfurt, Germany
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216
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Chemical mimetics of the N-degron pathway alleviate systemic inflammation by activating mitophagy and immunometabolic remodeling. Exp Mol Med 2023; 55:333-346. [PMID: 36720915 PMCID: PMC9981610 DOI: 10.1038/s12276-023-00929-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 10/19/2022] [Accepted: 11/04/2022] [Indexed: 02/02/2023] Open
Abstract
The Arg/N-degron pathway, which is involved in the degradation of proteins bearing an N-terminal signal peptide, is connected to p62/SQSTM1-mediated autophagy. However, the impact of the molecular link between the N-degron and autophagy pathways is largely unknown in the context of systemic inflammation. Here, we show that chemical mimetics of the N-degron Nt-Arg pathway (p62 ligands) decreased mortality in sepsis and inhibited pathological inflammation by activating mitophagy and immunometabolic remodeling. The p62 ligands alleviated systemic inflammation in a mouse model of lipopolysaccharide (LPS)-induced septic shock and in the cecal ligation and puncture model of sepsis. In macrophages, the p62 ligand attenuated the production of proinflammatory cytokines and chemokines in response to various innate immune stimuli. Mechanistically, the p62 ligand augmented LPS-induced mitophagy and inhibited the production of mitochondrial reactive oxygen species in macrophages. The p62 ligand-mediated anti-inflammatory, antioxidative, and mitophagy-activating effects depended on p62. In parallel, the p62 ligand significantly downregulated the LPS-induced upregulation of aerobic glycolysis and lactate production. Together, our findings demonstrate that p62 ligands play a critical role in the regulation of inflammatory responses by orchestrating mitophagy and immunometabolic remodeling.
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217
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Abstract
Nutrients can impact and regulate cellular metabolism and cell function which is particularly important for the activation and function of diverse immune subsets. Among the critical nutrients for immune cell function and fate, glutamine is possibly the most widely recognised immunonutrient, playing key roles in TCA cycle, heat shock protein responses and antioxidant systems. In addition, glutamine is also involved with inter-organ ammonia transport, and this is particularly important for not only immune cells, but also to the brain, especially in catabolic situations such as critical care and extenuating exercise. The well characterised fall in blood glutamine availability has been the main reason for studies to investigate the possible effects of glutamine replacement via supplementation but many of the results are in poor agreement. At the same time, a range of complex pathways involved in glutamine metabolism have been revealed via supplementation studies. This article will briefly review the function of glutamine in the immune system, with emphasis on metabolic mechanisms, and the emerging role of glutamine in the brain glutamate/gamma-amino butyric acid cycle. In addition, relevant aspects of glutamine supplementation are discussed.
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218
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Dionísio F, Tomas L, Schulz C. Glycolytic side pathways regulating macrophage inflammatory phenotypes and functions. Am J Physiol Cell Physiol 2023; 324:C558-C564. [PMID: 36645667 DOI: 10.1152/ajpcell.00276.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Macrophages are crucial effector cells of the innate immune system and have important roles in the initiation and resolution of inflammation as well as in tissue homeostasis. To fulfill these diverse roles, macrophages exhibit metabolic flexibility to quickly adapt to the needs of the effector functions required, as well as to the microenvironment. This metabolic flexibility is exemplified by proinflammatory macrophages, which upregulate glycolysis to both initiate and sustain the process of inflammation. Upregulation of glycolysis does not only represent a fast means of ATP generation. It also fuels glycolytic side pathways that are crucial for an effective inflammatory response by influencing the cell's redox balance as well as by providing building blocks and substrates for epigenetic reprogramming. The aim of this short review is to explore how three of these pathways - the pentose phosphate pathway, the glycerol phosphate shuttle, and the serine synthesis pathway - help macrophages sustain their proinflammatory phenotype and functions.
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Affiliation(s)
- Flávio Dionísio
- Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Lukas Tomas
- Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Christian Schulz
- Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
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219
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Yang L, Guo P, Wang P, Wang W, Liu J. IL-6/ERK signaling pathway participates in type I IFN-programmed, unconventional M2-like macrophage polarization. Sci Rep 2023; 13:1827. [PMID: 36726024 PMCID: PMC9892596 DOI: 10.1038/s41598-022-23721-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 11/03/2022] [Indexed: 02/03/2023] Open
Abstract
Type I interferons (IFN-Is) have been harnessed for cancer therapies due to their immunostimulatory functions. However, certain tumor-tolerating activities by IFN-Is also exist, and may potentially thwart their therapeutic effects. In this respect, our previous studies have demonstrated a monocyte-orchestrated, IFN-I-to-IL-4 cytokine axis, which can subsequently drive M2-skewed pro-tumoral polarization of macrophages. Whether other IFN-dependent signals may also contribute to such an unconventional circumstance of M2-like macrophage skewing remain unexplored. Herein, we first unveil IL-6 as another ligand that participates in IFN-dependent induction of a typical M2 marker (ARG1) in transitional monocytes. Indeed, IL-6 significantly promotes IL-4-dependent induction of a major group of prominent M2 markers in mouse bone marrow-derived macrophages (BMDMs) and human peripheral blood-derived macrophages, while it alone does not engage marked increases of these markers. Such a pattern of regulation is confirmed globally by RNAseq analyses in BMDMs, which in turn suggests an association of IL-6-amplified subset of M2 genes with the ERK1/2 signaling pathway. Interestingly, pharmacological experiments establish the role of SHP2-ERK cascade in mediating IL-6's enhancement effect on these M2 targets. Similar approaches also validate the involvement of IL-6/ERK signaling in promoting the IFN-dependent, unconventional M2-skewing phenotype in transitional monocytes. Furthermore, an inhibitor of ERK signaling cooperates with an IFN-I inducer to enable a greater antitumor effect, which correlates with suppression of treatment-elicited ARG1. The present work establishes a role of IL-6/ERK signaling in promoting M2-like macrophage polarization, and suggests this axis as a potential therapeutic target for combination with IFN-I-based cancer treatments.
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Affiliation(s)
- Limin Yang
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center at Medical School of Nanjing University, Nanjing, 210061, China.,Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, 224006, China
| | - Panpan Guo
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Pei Wang
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center at Medical School of Nanjing University, Nanjing, 210061, China
| | - Wei Wang
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, 224006, China. .,The First People's Hospital of Yancheng, Yancheng, 224006, China.
| | - Jianghuai Liu
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center at Medical School of Nanjing University, Nanjing, 210061, China. .,Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, 224006, China. .,Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, China.
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220
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Zhang W, Fang X, Gao C, Song C, He Y, Zhou T, Yang X, Shang Y, Xu J. MDSCs in sepsis-induced immunosuppression and its potential therapeutic targets. Cytokine Growth Factor Rev 2023; 69:90-103. [PMID: 35927154 DOI: 10.1016/j.cytogfr.2022.07.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 02/07/2023]
Abstract
Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection. In sepsis, a complicated immune response is initiated, which varies over time with sustained excessive inflammation and immunosuppression. Identifying a promising way to orchestrate sepsis-induced immunosuppression is a challenge. Myeloid-derived suppressor cells (MDSCs) comprise pathologically activated neutrophils and monocytes with potent immunosuppressive activity. They play an important part in inhibiting innate and adaptive immune responses, and have emerged as part of the immune response in sepsis. MDSCs numbers are persistently high in sepsis patients, and associated with nosocomial infections and other adverse clinical outcomes. However, their characteristics and functional mechanisms during sepsis have not been addressed fully. Our review sheds light on the features and suppressive mechanism of MDSCs. We also review the potential applications of MDSCs as biomarkers and targets for clinical treatment of sepsis.
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Affiliation(s)
- Wanying Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Institute of Anesthesiology and critical care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiangzhi Fang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chenggang Gao
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chaoying Song
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yajun He
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Zhou
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaobo Yang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - You Shang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Institute of Anesthesiology and critical care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Jiqian Xu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Institute of Anesthesiology and critical care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Costa MFDS, Pereira-Dutra F, Deboosere N, Jouny S, Song OR, Iack G, Souza AL, Roma EH, Delorme V, Bozza PT, Brodin P. Mycobacterium tuberculosis induces delayed lipid droplet accumulation in dendritic cells depending on bacterial viability and virulence. Mol Microbiol 2023; 119:224-236. [PMID: 36579614 DOI: 10.1111/mmi.15023] [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: 11/30/2021] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 12/30/2022]
Abstract
Tuberculosis remains a global health threat with high morbidity. Dendritic cells (DCs) participate in the acute and chronic inflammatory responses to Mycobacterium tuberculosis (Mtb) by directing the adaptive immune response and are present in lung granulomas. In macrophages, the interaction of lipid droplets (LDs) with mycobacteria-containing phagosomes is central to host-pathogen interactions. However, the data available for DCs are still a matter of debate. Here, we reported that bone marrow-derived DCs (BMDCs) were susceptible to Mtb infection and replication at similar rate to macrophages. Unlike macrophages, the analysis of gene expression showed that Mtb infection induced a delayed increase in lipid droplet-related genes and proinflammatory response. Hence, LD accumulation has been observed by high-content imaging in late periods. Infection of BMDCs with killed H37Rv demonstrated that LD accumulation depends on Mtb viability. Moreover, infection with the attenuated strains H37Ra and Mycobacterium bovis-BCG induced only an early transient increase in LDs, whereas virulent Mtb also induced delayed LD accumulation. In addition, infection with the BCG strain with the reintroduced virulence RD1 locus induced higher LD accumulation and bacterial replication when compared to parental BCG. Collectively, our data suggest that delayed LD accumulation in DCs is dependent on mycobacterial viability and virulence.
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Affiliation(s)
- Maria Fernanda de Souza Costa
- Instituto de Biologia, Departamento de Imunobiologia, Universidade Federal Fluminense, Niteroi, Brazil.,Center for Technological Development in Health, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.,Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Lille, France
| | - Filipe Pereira-Dutra
- Immunopharmacology Laboratory, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Nathalie Deboosere
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Lille, France
| | - Samuel Jouny
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Lille, France
| | - Ok-Ryul Song
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Lille, France
| | - Guilherme Iack
- Instituto de Biologia, Departamento de Imunobiologia, Universidade Federal Fluminense, Niteroi, Brazil.,Immunopharmacology Laboratory, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Andreia Lamoglia Souza
- Fundação Oswaldo Cruz, Laboratory of Immunology and Immunogenetics in Infectious Diseases at Evandro Chagas National Institute of Infectious Diseases, Rio de Janeiro, Brazil
| | - Eric Henrique Roma
- Fundação Oswaldo Cruz, Laboratory of Immunology and Immunogenetics in Infectious Diseases at Evandro Chagas National Institute of Infectious Diseases, Rio de Janeiro, Brazil
| | - Vincent Delorme
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Lille, France
| | - Patricia T Bozza
- Immunopharmacology Laboratory, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Priscille Brodin
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Lille, France
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222
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Inamdar S, Tylek T, Thumsi A, Suresh AP, Jaggarapu MMCS, Halim M, Mantri S, Esrafili A, Ng ND, Schmitzer E, Lintecum K, de Ávila C, Fryer JD, Xu Y, Spiller KL, Acharya AP. Biomaterial mediated simultaneous delivery of spermine and alpha ketoglutarate modulate metabolism and innate immune cell phenotype in sepsis mouse models. Biomaterials 2023; 293:121973. [PMID: 36549041 PMCID: PMC9868086 DOI: 10.1016/j.biomaterials.2022.121973] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 12/10/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
Although different metabolic pathways have been associated with distinct macrophage phenotypes, the field of utilizing metabolites to modulate macrophage phenotype is in a nascent stage. In this report, we developed microparticles based on polymerization of alpha-ketoglutarate (a Krebs cycle metabolite), with or without encapsulation of spermine (a polyamine metabolite), to modulate cell phenotype that are critical for resolution of inflammation. Poly (alpha-ketoglutarate) microparticles encapsulated and released spermine (spermine (encap)paKG MPs) in vitro, which was accelerated in an acidic environment. When delivered to bone marrow-derived-macrophages, spermine (encap)paKG MPs induced a complex phenotypic profile outside of the typical M1/M2 paradigm, with distinct effects in the presence or absence of the pro-inflammatory stimulus lipopolysaccharide. Of particular interest was the increase in expression of CD163, which has been linked to anti-inflammatory responses in sepsis. Therefore, we systemically administered spermine (encap)paKG MPs to two different murine models of sepsis using acute or chronic injection of LPS. Macrophages and neutrophils in the liver and spleen of animals treated with spermine (encap)paKG MPs increased expression of CD163, concomitant with normalizing of glycolysis and oxidative phosphorylation, in both models. Overall, these results show that spermine (encap)paKG MPs modulate macrophage phenotype in vitro and in vivo, with potential applications in inflammation-associated diseases.
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Affiliation(s)
- Sahil Inamdar
- Chemical Engineering, School for the Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, 85281, USA
| | - Tina Tylek
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Abhirami Thumsi
- Biological Design, School for the Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, 85281, USA
| | - Abhirami P Suresh
- Biological Design, School for the Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, 85281, USA
| | | | - Michelle Halim
- Chemical Engineering, School for the Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, 85281, USA
| | - Shivani Mantri
- Biomedical Engineering, School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, 85281, USA
| | - Arezoo Esrafili
- Chemical Engineering, School for the Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, 85281, USA
| | - Nathan D Ng
- Molecular Biosciences and Biotechnology, The College of Liberal Arts and Sciences, Arizona State University, Tempe, AZ, 85281, USA
| | - Elizabeth Schmitzer
- Biomedical Engineering, School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, 85281, USA
| | - Kelly Lintecum
- Chemical Engineering, School for the Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, 85281, USA
| | - Camila de Ávila
- Department of Neuroscience, Mayo Clinic, Scottsdale, AZ, 85259, USA
| | - John D Fryer
- Department of Neuroscience, Mayo Clinic, Scottsdale, AZ, 85259, USA
| | - Ying Xu
- Department of Anesthesiology, Rutgers New Jersey Medical School, Newark, NJ, 07103, USA
| | - Kara L Spiller
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Abhinav P Acharya
- Chemical Engineering, School for the Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, 85281, USA; Biomedical Engineering, School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, 85281, USA; Materials Science and Engineering, School for the Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, 85281, USA; Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, 85281, USA.
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223
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McGettrick AF, O'Neill LA. Two for the price of one: itaconate and its derivatives as an anti-infective and anti-inflammatory immunometabolite. Curr Opin Immunol 2023; 80:102268. [PMID: 36446152 DOI: 10.1016/j.coi.2022.102268] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/07/2022] [Indexed: 11/27/2022]
Abstract
The metabolite itaconate (ITA) and its derivatives, both chemically synthesized and endogenous, have emerged as immunoregulators, with roles in limiting inflammation but also having effects on bacterial and viral infection. Some members of the ITA family have been shown to target and inhibit multiple processes in macrophages with recently identified targets, including NLRP3, JAK1, ten-eleven translocation-2 dioxygenases, and TFEB, a key transcription factor for lysosomal biogenesis. They have also been shown to target multiple bacteria, inhibiting their replication, as well as having antiviral effects against viruses such as SARS-CoV2, Zika virus, and Influenza virus. The importance of ITA is highlighted by the fact that several pathogens have developed mechanisms to evade ITA and can manipulate ITA for their own gain. Two newly discovered isomers of ITA, mesaconate and citraconate, are also discussed, which also have immunomodulatory effects. ITA continues to be a fascination, both in terms of inflammation but also as an antibacterial and antiviral agent, with therapeutic potential in immune and inflammatory diseases.
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Affiliation(s)
- Anne F McGettrick
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland.
| | - Luke Aj O'Neill
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
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Qiu JF, Cui WZ, Zhang Q, Dai TM, Liu K, Li JL, Wang YJ, Sima YH, Xu SQ. Temporal transcriptome reveals that circadian clock is involved in the dynamic regulation of immune response to bacterial infection in Bombyx mori. INSECT SCIENCE 2023; 30:31-46. [PMID: 35446483 DOI: 10.1111/1744-7917.13043] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/11/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
The circadian clock plays a critical role in the regulation of host immune defense. However, the mechanistic basis for this regulation is largely unknown. Herein, the core clock gene cryptochrome1 (cry1) knockout line in Bombyx mori, an invertebrate animal model, was constructed to obtain the silkworm with dysfunctional molecular clock, and the dynamic regulation of the circadian clock on the immune responsiveness within 24 h of Staphylococcus aureus infection was analyzed. We found that deletion of cry1 decreased viability of silkworms and significantly reduced resistance of larvae to S. aureus. Time series RNA-seq analysis identified thousands of rhythmically expressed genes, including immune response genes, in the larval immune tissue, fat bodies. Uninfected cry1 knockout silkworms exhibited expression patterns of rhythmically expressed genes similar to wild-type (WT) silkworms infected with S. aureus. However, cry1 knockout silkworms exhibited a seriously weakened response to S. aureus infection. The immune response peaked at 6 and 24 h after infection, during which "transcription storms" occurred, and the expression levels of the immune response genes, PGRP and antimicrobial peptides (AMPs), were significantly upregulated in WT. In contrast, cry1 knockout did not effectively activate Toll, Imd, or NF-κB signaling pathways during the immune adjustment period from 12 to 18 h after infection, resulting in failure to initiate the immune responsiveness peak at 24 h after infection. This may be related to inhibited silkworm fat body energy metabolism. These results demonstrated the dynamic regulation of circadian clock on silkworm immune response to bacterial infection and provided important insights into host antimicrobial defense mechanisms.
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Affiliation(s)
- Jian-Feng Qiu
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, China, Jiangsu Province
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, China, Jiangsu Province
| | - Wen-Zhao Cui
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, China, Jiangsu Province
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, China, Jiangsu Province
| | - Qiang Zhang
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, China, Jiangsu Province
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, China, Jiangsu Province
| | - Tai-Ming Dai
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, China, Jiangsu Province
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, China, Jiangsu Province
| | - Kai Liu
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, China, Jiangsu Province
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, China, Jiangsu Province
| | - Jiang-Lan Li
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, China, Jiangsu Province
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, China, Jiangsu Province
| | - Yu-Jun Wang
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, College of Marine Sciences, Beibu Gulf University, Qinzhou, China, Guangxi Province
| | - Yang-Hu Sima
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, China, Jiangsu Province
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, China, Jiangsu Province
| | - Shi-Qing Xu
- School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, China, Jiangsu Province
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, China, Jiangsu Province
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Abstract
T cells are one of few cell types in adult mammals that can proliferate extensively and differentiate diversely upon stimulation, which serves as an excellent example to dissect the metabolic basis of cell fate decisions. During the last decade, there has been an explosion of research into the metabolic control of T-cell responses. The roles of common metabolic pathways, including glycolysis, lipid metabolism, and mitochondrial oxidative phosphorylation, in T-cell responses have been well characterized, and their mechanisms of action are starting to emerge. In this review, we present several considerations for T-cell metabolism-focused research, while providing an overview of the metabolic control of T-cell fate decisions during their life journey. We try to synthesize principles that explain the causal relationship between cellular metabolism and T-cell fate decision. We also discuss key unresolved questions and challenges in targeting T-cell metabolism to treat disease.
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Affiliation(s)
- Min Peng
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing 100084, China
- Institute for Immunology, Tsinghua University, Beijing 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
- Beijing Key Laboratory for Immunological Research on Chronic Diseases, Tsinghua University, Beijing 100084, China
| | - Ming O. Li
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY 10065, USA
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226
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Knudsen-Clark AM, Cazarin J, Altman BJ. Do macrophages follow the beat of circadian rhythm in TIME (Tumor Immune Microenvironment)? F1000Res 2023; 12:101. [PMID: 37469718 PMCID: PMC10352629 DOI: 10.12688/f1000research.129863.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/18/2023] [Indexed: 07/21/2023] Open
Abstract
Advances in cancer research have made clear the critical role of the immune response in clearing tumors. This breakthrough in scientific understanding was heralded by the success of immune checkpoint blockade (ICB) therapies such as anti-programmed cell death protein 1 (PD-1)/ programmed death-ligand 1 (PD-L1) and anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), as well as the success of chimeric antigen receptor (CAR) T cells in treating liquid tumors. Thus, much effort has been made to further understand the role of the immune response in tumor progression, and how we may target it to treat cancer. Macrophages are a component of the tumor immune microenvironment (TIME) that can promote tumor growth both indirectly, by suppressing T cell responses necessary for tumor killing, as well as directly, through deposition of extracellular matrix and promotion of angiogenesis. Thus, understanding regulation of macrophages within the tumor microenvironment (TME) is key to targeting them for immunotherapy. However, circadian rhythms (24-hour cycles) are a fundamental aspect of macrophage biology that have yet to be investigated for their role in macrophage-mediated suppression of the anti-tumor immune response Circadian rhythms regulate macrophage-mediated immune responses through time-of-day-dependent regulation of macrophage function. A better understanding of the circadian biology of macrophages in the context of the TME may allow us to exploit synergy between existing and upcoming treatments and circadian regulation of immunity.
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Affiliation(s)
- Amelia M. Knudsen-Clark
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, NY, 14620, USA
| | - Juliana Cazarin
- Department of Biomedical Genetics, University of Rochester School of Medicine and Dentistry, Rochester, NY, 14620, USA
| | - Brian J. Altman
- Department of Biomedical Genetics, University of Rochester School of Medicine and Dentistry, Rochester, NY, 14620, USA
- Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, 14620, USA
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227
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Lu T, Li Q, Lin W, Zhao X, Li F, Ji J, Zhang Y, Xu N. Gut Microbiota-Derived Glutamine Attenuates Liver Ischemia/Reperfusion Injury via Macrophage Metabolic Reprogramming. Cell Mol Gastroenterol Hepatol 2023; 15:1255-1275. [PMID: 36706918 PMCID: PMC10140379 DOI: 10.1016/j.jcmgh.2023.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/29/2023]
Abstract
BACKGROUND & AIMS Many studies have revealed crucial roles of the gut microbiota and its metabolites in liver disease progression. However, the mechanism underlying their effects on liver ischemia/reperfusion (I/R) injury remain largely unknown. Here, we investigate the function of gut microbiota and its metabolites in liver I/R injury. METHODS C57BL/6 mice was pretreated with an antibiotic cocktail. Then, we used multi-omics detection methods including 16s rRNA sequencing, ultra-performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS) to explore the changes of gut microbiota and metabolites in both feces and portal blood to reveal the mechanism of their protective effect in liver I/R injury. RESULTS We found that antibiotic pretreatment (ABX) could significantly reduce the severity of I/R-induced hepatic injury, and this effect could be transferred to germ-free mice by fecal microbiota transplantation (FMT), suggesting a protective role of the gut microbiota depletion. During I/R, the rates of serum α-ketoglutarate (αKG) production and glutamate reduction, downstream products of gut microbiota-derived glutamine, were more significant in the ABX mice. Then, we showed that αKG could promote alternative (M2) macrophage activation through oxidative phosphorylation, and oligomycin A could inhibit M2 macrophage polarization and reversed this protective effect. CONCLUSIONS These findings show that the gut microbiota and its metabolites play critical roles in hepatic I/R injury by modulating macrophage metabolic reprogramming. Potential therapies that target macrophage metabolism, including antibiotic therapies and novel immunometabolism modulators, can be exploited for the treatment of liver I/R injury.
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Affiliation(s)
- Tianfei Lu
- Abdominal Transplant Surgery Center, Ruijing Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Qing Li
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology Department, Paris, France, Paris Centre for Microbiome Medicine FHU, Paris, France
| | - Weiwei Lin
- Department of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xianzhe Zhao
- Shanghai Rat & Mouse Biotech Co, Ltd, Shanghai, China
| | - Fu Li
- Department of Cholangio-Pancreatic Surgery, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianmei Ji
- Digestive Endoscopy Center, Department of Gastroenterology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yu Zhang
- Department of Surgery, Division of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ning Xu
- Department of Liver Surgery and Liver Transplantation Center, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
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228
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The role of ApoE-mediated microglial lipid metabolism in brain aging and disease. IMMUNOMETABOLISM (COBHAM (SURREY, ENGLAND)) 2023; 5:e00018. [PMID: 36710921 PMCID: PMC9869962 DOI: 10.1097/in9.0000000000000018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/20/2022] [Indexed: 01/31/2023]
Abstract
Microglia are a unique population of immune cells resident in the brain that integrate complex signals and dynamically change phenotypes in response to the brain microenvironment. In recent years, single-cell sequencing analyses have revealed profound cellular heterogeneity and context-specific transcriptional plasticity of microglia during brain development, aging, and disease. Emerging evidence suggests that microglia adapt phenotypic plasticity by flexibly reprogramming cellular metabolism to fulfill distinct immune functions. The control of lipid metabolism is central to the appropriate function and homeostasis of the brain. Microglial lipid metabolism regulated by apolipoprotein E (ApoE), a crucial lipid transporter in the brain, has emerged as a critical player in regulating neuroinflammation. The ApoE gene allelic variant, ε4, is associated with a greater risk for neurodegenerative diseases. In this review, we explore novel discoveries in microglial lipid metabolism mediated by ApoE. We elaborate on the functional impact of perturbed microglial lipid metabolism on the underlying pathogenesis of brain aging and disease.
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229
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IGF2: A Role in Metastasis and Tumor Evasion from Immune Surveillance? Biomedicines 2023; 11:biomedicines11010229. [PMID: 36672737 PMCID: PMC9855361 DOI: 10.3390/biomedicines11010229] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Insulin-like growth factor 2 (IGF2) is upregulated in both childhood and adult malignancies. Its overexpression is associated with resistance to chemotherapy and worse prognosis. However, our understanding of its physiological and pathological role is lagging behind what we know about IGF1. Dysregulation of the expression and function of IGF2 receptors, insulin receptor isoform A (IR-A), insulin growth factor receptor 1 (IGF1R), and their downstream signaling effectors drive cancer initiation and progression. The involvement of IGF2 in carcinogenesis depends on its ability to link high energy intake, increase cell proliferation, and suppress apoptosis to cancer risk, and this is likely the key mechanism bridging insulin resistance to cancer. New aspects are emerging regarding the role of IGF2 in promoting cancer metastasis by promoting evasion from immune destruction. This review provides a perspective on IGF2 and an update on recent research findings. Specifically, we focus on studies providing compelling evidence that IGF2 is not only a major factor in primary tumor development, but it also plays a crucial role in cancer spread, immune evasion, and resistance to therapies. Further studies are needed in order to find new therapeutic approaches to target IGF2 action.
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230
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Akrami S, Tahmasebi A, Moghadam A, Ramezani A, Niazi A. Integration of mRNA and protein expression data for the identification of potential biomarkers associated with pancreatic ductal adenocarcinoma. Comput Biol Med 2023; 157:106529. [PMID: 36921457 DOI: 10.1016/j.compbiomed.2022.106529] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 12/21/2022] [Accepted: 12/31/2022] [Indexed: 01/15/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most death-dealing tumors, with a tremendously poor prognosis. Here, we, through interrogation of mRNA and protein data combined with a system biology approach, identified several key genes, functional processes, and pathways that can have critical roles in PDAC. We detected an interesting module related to the clinical traits that enriched in the ribosome, hematopoietic cell lineage, and cell adhesion molecules-related pathways. We also identified several hub genes in important modules that are associated with immune system processes. The results also indicated some lncRNAs, such as FAM30A, and MIR223HG with essential functions that are involved in PDAC. Additionally, five genes, including CD53, ITGAL, WDFY4, TLX1, and LMAN1L were screened by survival analysis and can be considered as candidate biomarkers or therapeutic targets. According to our strategy, the findings of this study may provide a better understanding of the molecular mechanisms and suggest potential prognostic and therapeutic targets for PDAC.
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Affiliation(s)
- Sahar Akrami
- Institute of Biotechnology, Shiraz University, Shiraz, Iran
| | - Ahmad Tahmasebi
- Institute of Biotechnology, Shiraz University, Shiraz, Iran; Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Moghadam
- Institute of Biotechnology, Shiraz University, Shiraz, Iran
| | - Amin Ramezani
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran; Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ali Niazi
- Institute of Biotechnology, Shiraz University, Shiraz, Iran.
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231
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Alba G, Dakhaoui H, Santa-Maria C, Palomares F, Cejudo-Guillen M, Geniz I, Sobrino F, Montserrat-de la Paz S, Lopez-Enriquez S. Nutraceuticals as Potential Therapeutic Modulators in Immunometabolism. Nutrients 2023; 15:411. [PMID: 36678282 PMCID: PMC9865834 DOI: 10.3390/nu15020411] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/14/2023] Open
Abstract
Nutraceuticals act as cellular and functional modulators, contributing to the homeostasis of physiological processes. In an inflammatory microenvironment, these functional foods can interact with the immune system by modulating or balancing the exacerbated proinflammatory response. In this process, immune cells, such as antigen-presenting cells (APCs), identify danger signals and, after interacting with T lymphocytes, induce a specific effector response. Moreover, this conditions their change of state with phenotypical and functional modifications from the resting state to the activated and effector state, supposing an increase in their energy requirements that affect their intracellular metabolism, with each immune cell showing a unique metabolic signature. Thus, nutraceuticals, such as polyphenols, vitamins, fatty acids, and sulforaphane, represent an active option to use therapeutically for health or the prevention of different pathologies, including obesity, metabolic syndrome, and diabetes. To regulate the inflammation associated with these pathologies, intervention in metabolic pathways through the modulation of metabolic energy with nutraceuticals is an attractive strategy that allows inducing important changes in cellular properties. Thus, we provide an overview of the link between metabolism, immune function, and nutraceuticals in chronic inflammatory processes associated with obesity and diabetes, paying particular attention to nutritional effects on APC and T cell immunometabolism, as well as the mechanisms required in the change in energetic pathways involved after their activation.
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Affiliation(s)
- Gonzalo Alba
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville. Av. Sanchez Pizjuan s/n, 41009 Seville, Spain
| | - Hala Dakhaoui
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville. Av. Sanchez Pizjuan s/n, 41009 Seville, Spain
| | - Consuelo Santa-Maria
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Francisca Palomares
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville. Av. Sanchez Pizjuan s/n, 41009 Seville, Spain
| | - Marta Cejudo-Guillen
- Department of Pharmacology, Pediatry, and Radiology, School of Medicine, University of Seville. Av. Sanchez Pizjuan s/n, 41009 Seville, Spain
| | - Isabel Geniz
- Distrito Sanitario Seville Norte y Aljarafe, Servicio Andaluz de Salud, 41008 Seville, Spain
| | - Francisco Sobrino
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville. Av. Sanchez Pizjuan s/n, 41009 Seville, Spain
| | - Sergio Montserrat-de la Paz
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville. Av. Sanchez Pizjuan s/n, 41009 Seville, Spain
| | - Soledad Lopez-Enriquez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville. Av. Sanchez Pizjuan s/n, 41009 Seville, Spain
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Chen R, Zhang S, Liu F, Xia L, Wang C, Sandoghchian Shotorbani S, Xu H, Chakrabarti S, Peng T, Su Z. Renewal of embryonic and neonatal-derived cardiac-resident macrophages in response to environmental cues abrogated their potential to promote cardiomyocyte proliferation via Jagged-1-Notch1. Acta Pharm Sin B 2023; 13:128-141. [PMID: 36815032 PMCID: PMC9939321 DOI: 10.1016/j.apsb.2022.08.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 07/07/2022] [Accepted: 08/18/2022] [Indexed: 11/19/2022] Open
Abstract
Cardiac-resident macrophages (CRMs) play important roles in homeostasis, cardiac function, and remodeling. Although CRMs play critical roles in cardiac regeneration of neonatal mice, their roles are yet to be fully elucidated. Therefore, this study aimed to investigate the dynamic changes of CRMs during cardiac ontogeny and analyze the phenotypic and functional properties of CRMs in the promotion of cardiac regeneration. During mouse cardiac ontogeny, four CRM subsets exist successively: CX3CR1+CCR2-Ly6C-MHCII- (MP1), CX3CR1lowCCR2lowLy6C-MHCII- (MP2), CX3CR1-CCR2+Ly6C+MHCII- (MP3), and CX3CR1+CCR2-Ly6C-MHCII+ (MP4). MP1 cluster has different derivations (yolk sac, fetal liver, and bone marrow) and multiple functions population. Embryonic and neonatal-derived-MP1 directly promoted cardiomyocyte proliferation through Jagged-1-Notch1 axis and significantly ameliorated cardiac injury following myocardial infarction. MP2/3 subsets could survive throughout adulthood. MP4, the main population in adult mouse hearts, contributed to inflammation. During ontogeny, MP1 can convert into MP4 triggered by changes in the cellular redox state. These findings delineate the evolutionary dynamics of CRMs under physiological conditions and found direct evidence that embryonic and neonatal-derived CRMs regulate cardiomyocyte proliferation. Our findings also shed light on cardiac repair following injury.
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Affiliation(s)
- Rong Chen
- International Genome Center, Jiangsu University, Zhenjiang 212013, China
- Institute for Medical Immunology, Jiangsu University, Zhenjiang 212013, China
| | - Shiqing Zhang
- International Genome Center, Jiangsu University, Zhenjiang 212013, China
- Institute for Medical Immunology, Jiangsu University, Zhenjiang 212013, China
| | - Fang Liu
- International Genome Center, Jiangsu University, Zhenjiang 212013, China
| | - Lin Xia
- International Genome Center, Jiangsu University, Zhenjiang 212013, China
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - Chong Wang
- International Genome Center, Jiangsu University, Zhenjiang 212013, China
- Institute for Medical Immunology, Jiangsu University, Zhenjiang 212013, China
| | | | - Huaxi Xu
- International Genome Center, Jiangsu University, Zhenjiang 212013, China
| | - Subrata Chakrabarti
- Lawson Health Research Institute, London Health Sciences Centre, London, Ontario N6A 5W9, Canada
- Department of Pathology and Laboratory Medicine, Western University, London, Ontario N6A 5C1, Canada
| | - Tianqing Peng
- Lawson Health Research Institute, London Health Sciences Centre, London, Ontario N6A 5W9, Canada
- Department of Pathology and Laboratory Medicine, Western University, London, Ontario N6A 5C1, Canada
- Corresponding authors. Tel.: +86 511 88780266.
| | - Zhaoliang Su
- International Genome Center, Jiangsu University, Zhenjiang 212013, China
- Institute for Medical Immunology, Jiangsu University, Zhenjiang 212013, China
- Corresponding authors. Tel.: +86 511 88780266.
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Kopitar AN, Repas J, Janžič L, Bizjak M, Vesel TT, Emeršič N, Avramovič MZ, Ihan A, Avčin T, Pavlin M. Alterations in immunophenotype and metabolic profile of mononuclear cells during follow up in children with multisystem inflammatory syndrome (MIS-C). Front Immunol 2023; 14:1157702. [PMID: 37153551 PMCID: PMC10157053 DOI: 10.3389/fimmu.2023.1157702] [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: 02/02/2023] [Accepted: 03/29/2023] [Indexed: 05/09/2023] Open
Abstract
Introduction Although children seem to be less susceptible to COVID-19, some of them develop a rare but serious hyperinflammatory condition called multisystem inflammatory syndrome in children (MIS-C). While several studies describe the clinical conditions of acute MIS-C, the status of convalescent patients in the months after acute MIS-C is still unclear, especially the question of persistence of changes in the specific subpopulations of immune cells in the convalescent phase of the disease. Methods We therefore analyzed peripheral blood of 14 children with MIS-C at the onset of the disease (acute phase) and 2 to 6 months after disease onset (post-acute convalescent phase) for lymphocyte subsets and antigen-presenting cell (APC) phenotype. The results were compared with six healthy age-matched controls. Results All major lymphocyte populations (B cells, CD4 + and CD8+ T cells, and NK cells) were decreased in the acute phase and normalized in the convalescent phase. T cell activation was increased in the acute phase, followed by an increased proportion of γ/δ-double-negative T cells (γ/δ DN Ts) in the convalescent phase. B cell differentiation was impaired in the acute phase with a decreased proportion of CD21 expressing, activated/memory, and class-switched memory B cells, which normalized in the convalescent phase. The proportion of plasmacytoid dendritic cells, conventional type 2 dendritic cells, and classical monocytes were decreased, while the proportion of conventional type 1 dendritic cells was increased in the acute phase. Importantly the population of plasmacytoid dendritic cells remained decreased in the convalescent phase, while other APC populations normalized. Immunometabolic analysis of peripheral blood mononuclear cells (PBMCs) in the convalescent MIS-C showed comparable mitochondrial respiration and glycolysis rates to healthy controls. Conclusions While both immunophenotyping and immunometabolic analyzes showed that immune cells in the convalescent MIS-C phase normalized in many parameters, we found lower percentage of plasmablasts, lower expression of T cell co-receptors (CD3, CD4, and CD8), an increased percentage of γ/δ DN Ts and increased metabolic activity of CD3/CD28-stimulated T cells. Overall, the results suggest that inflammation persists for months after the onset of MIS-C, with significant alterations in some immune system parameters, which may also impair immune defense against viral infections.
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Affiliation(s)
- Andreja Nataša Kopitar
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Jernej Repas
- Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Larisa Janžič
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Maša Bizjak
- Department for Allergology, Rheumatology and Clinical Immunology, Children’s Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Tina Tajnšek Vesel
- Department for Allergology, Rheumatology and Clinical Immunology, Children’s Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Nina Emeršič
- Department for Allergology, Rheumatology and Clinical Immunology, Children’s Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Mojca Zajc Avramovič
- Department for Allergology, Rheumatology and Clinical Immunology, Children’s Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Alojz Ihan
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tadej Avčin
- Department for Allergology, Rheumatology and Clinical Immunology, Children’s Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
- Faculty of Medicine, Department of Pediatrics, University of Ljubljana, Ljubljana, Slovenia
- *Correspondence: Tadej Avčin, ; Mojca Pavlin,
| | - Mojca Pavlin
- Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Group for Nano and Biotechnological Applications, Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
- *Correspondence: Tadej Avčin, ; Mojca Pavlin,
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Zhang P, Pan S, Yuan S, Shang Y, Shu H. Abnormal glucose metabolism in virus associated sepsis. Front Cell Infect Microbiol 2023; 13:1120769. [PMID: 37124033 PMCID: PMC10130199 DOI: 10.3389/fcimb.2023.1120769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 03/23/2023] [Indexed: 05/02/2023] Open
Abstract
Sepsis is identified as a potentially lethal organ impairment triggered by an inadequate host reaction to infection (Sepsis-3). Viral sepsis is a potentially deadly organ impairment state caused by the host's inappropriate reaction to a viral infection. However, when a viral infection occurs, the metabolism of the infected cell undergoes a variety of changes that cause the host to respond to the infection. But, until now, little has been known about the challenges faced by cellular metabolic alterations that occur during viral infection and how these changes modulate infection. This study concentrates on the alterations in glucose metabolism during viral sepsis and their impact on viral infection, with a view to exploring new potential therapeutic targets for viral sepsis.
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Affiliation(s)
| | | | | | - You Shang
- *Correspondence: Huaqing Shu, ; You Shang,
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235
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Huang X, Li XY, Shan WL, Chen Y, Zhu Q, Xia BR. Targeted therapy and immunotherapy: Diamonds in the rough in the treatment of epithelial ovarian cancer. Front Pharmacol 2023; 14:1131342. [PMID: 37033645 PMCID: PMC10080064 DOI: 10.3389/fphar.2023.1131342] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 02/21/2023] [Indexed: 04/11/2023] Open
Abstract
Currently, for ovarian cancer, which has the highest mortality rate among all gynecological cancers, the standard treatment protocol is initial tumor cytoreductive surgery followed by platinum-based combination chemotherapy. Although the survival rate after standard treatment has improved, the therapeutic effect of traditional chemotherapy is very limited due to problems such as resistance to platinum-based drugs and recurrence. With the advent of the precision medicine era, molecular targeted therapy has gradually entered clinicians' view, and individualized precision therapy has been realized, surpassing the limitations of traditional therapy. The detection of genetic mutations affecting treatment, especially breast cancer susceptibility gene (BRCA) mutations and mutations of other homologous recombination repair defect (HRD) genes, can guide the targeted drug treatment of patients, effectively improve the treatment effect and achieve a better patient prognosis. This article reviews different sites and pathways of targeted therapy, including angiogenesis, cell cycle and DNA repair, and immune and metabolic pathways, and the latest research progress from preclinical and clinical trials related to ovarian cancer therapy.
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Affiliation(s)
- Xu Huang
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
- Bengbu Medical College Bengbu, Anhui, China
| | - Xiao-Yu Li
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
- Bengbu Medical College Bengbu, Anhui, China
| | - Wu-Lin Shan
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Yao Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Provincial Cancer Hospital, Hefei, Anhui, China
| | - Qi Zhu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Bai-Rong Xia
- Bengbu Medical College Bengbu, Anhui, China
- *Correspondence: Bai-Rong Xia,
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236
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Wu L, Yan Z, Jiang Y, Chen Y, Du J, Guo L, Xu J, Luo Z, Liu Y. Metabolic regulation of dendritic cell activation and immune function during inflammation. Front Immunol 2023; 14:1140749. [PMID: 36969180 PMCID: PMC10030510 DOI: 10.3389/fimmu.2023.1140749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/03/2023] [Indexed: 03/29/2023] Open
Abstract
Dendritic cells (DCs) are antigen-presenting cells that bridge innate and adaptive immune responses. Multiple cell types, including DCs, rely on cellular metabolism to determine their fate. DCs substantially alter cellular metabolic pathways during activation, such as oxidative phosphorylation, glycolysis, fatty acid and amino acid metabolism, which have crucial implications for their functionality. In this review, we summarize and discuss recent progress in DC metabolic studies, focusing on how metabolic reprogramming influences DC activation and functionality and the potential metabolic differences among DC subsets. Improving the understanding of the relationship between DC biology and metabolic regulation may provide promising therapeutic targets for immune-mediated inflammatory diseases.
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Affiliation(s)
- Lili Wu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ziqi Yan
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yiyang Jiang
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yingyi Chen
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Juan Du
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Lijia Guo
- Department of Orthodontics School of Stomatology, Capital Medical University, Beijing, China
| | - Junji Xu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhenhua Luo
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- *Correspondence: Zhenhua Luo, ; Yi Liu,
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- *Correspondence: Zhenhua Luo, ; Yi Liu,
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Janžič L, Repas J, Pavlin M, Zemljić-Jokhadar Š, Ihan A, Kopitar AN. Macrophage polarization during Streptococcus agalactiae infection is isolate specific. Front Microbiol 2023; 14:1186087. [PMID: 37213504 PMCID: PMC10192866 DOI: 10.3389/fmicb.2023.1186087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/17/2023] [Indexed: 05/23/2023] Open
Abstract
Introduction Streptococcus agalactiae (Group B Streptococcus, GBS), a Gram-positive commensal in healthy adults, remains a major cause of neonatal infections, usually manifesting as sepsis, meningitis, or pneumonia. Intrapartum antibiotic prophylaxis has greatly reduced the incidence of early-onset disease. However, given the lack of effective measures to prevent the risk of late-onset disease and invasive infections in immunocompromised individuals, more studies investigating the GBS-associated pathogenesis and the interplay between bacteria and host immune system are needed. Methods Here, we examined the impact of 12 previously genotyped GBS isolates belonging to different serotypes and sequence types on the immune response of THP-1 macrophages. Results Flow cytometry analysis showed isolate-specific differences in phagocytic uptake, ranging from 10% for isolates of serotype Ib, which possess the virulence factor protein β, to over 70% for isolates of serotype III. Different isolates also induced differential expression of co-stimulatory molecules and scavenger receptors with colonizing isolates inducing higher expression levels of CD80 and CD86 compared to invasive isolates. In addition, real-time measurements of metabolism revealed that macrophages enhanced both glycolysis and mitochondrial respiration after GBS infection, with isolates of serotype III being the most potent activators of glycolysis and glycolytic ATP production. Macrophages also showed differential resistance to GBS-mediated cell cytotoxicity as measured by LDH release and real-time microscopy. The differences were evident both between serotypes and between isolates obtained from different specimens (colonizing or invasive isolates) demonstrating the higher cytotoxicity of vaginal compared with blood isolates. Conclusions Thus, the data suggest that GBS isolates differ in their potential to become invasive or remain colonizing. In addition, colonizing isolates appear to be more cytotoxic, whereas invasive isolates appear to exploit macrophages to their advantage, avoiding the immune recognition and antibiotics.
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Affiliation(s)
- Larisa Janžič
- Department of Cell Immunology, Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Jernej Repas
- Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Mojca Pavlin
- Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Group for Nano and Biotechnological Applications, Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
| | - Špela Zemljić-Jokhadar
- Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Alojz Ihan
- Department of Cell Immunology, Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Andreja Nataša Kopitar
- Department of Cell Immunology, Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- *Correspondence: Andreja Nataša Kopitar,
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Anwar MM, Albanese C, Hamdy NM, Sultan AS. Rise of the natural red pigment 'prodigiosin' as an immunomodulator in cancer. Cancer Cell Int 2022; 22:419. [PMID: 36577970 PMCID: PMC9798661 DOI: 10.1186/s12935-022-02815-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 11/29/2022] [Indexed: 12/29/2022] Open
Abstract
Cancer is a heterogeneous disease with multifaceted drug resistance mechanisms (e.g., tumour microenvironment [TME], tumour heterogeneity, and immune evasion). Natural products are interesting repository of bioactive molecules, especially those with anticancer activities. Prodigiosin, a red pigment produced by Serratia marcescens, possesses inherent anticancer characteristics, showing interesting antitumour activities in different cancers (e.g., breast, gastric) with low or without harmful effects on normal cells. The present review discusses the potential role of prodigiosin in modulating and reprogramming the metabolism of the various immune cells in the TME, such as T and B lymphocytes, tumour-associated macrophages (TAMs), natural killer (NK) cells, and tumour-associated dendritic cells (TADCs), and myeloid-derived suppressor cells (MDSCs) which in turn might introduce as an immunomodulator in cancer therapy.
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Affiliation(s)
- Mohammed Moustapha Anwar
- grid.7155.60000 0001 2260 6941Department of Biotechnology, Institute of Graduate Studies and Research (IGSR), Alexandria University, Alexandria, Egypt
| | - Chris Albanese
- grid.516085.f0000 0004 0606 3221Oncology and Radiology Departments, Lombardi Comprehensive Cancer Center, Washington, D.C. USA
| | - Nadia M. Hamdy
- Department of Biochemistry, Ain Shams Faculty of Pharmacy, Cairo, Egypt
| | - Ahmed S. Sultan
- grid.7155.60000 0001 2260 6941Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
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Macrophage Mitochondrial Biogenesis and Metabolic Reprogramming Induced by Leishmania donovani Require Lipophosphoglycan and Type I Interferon Signaling. mBio 2022; 13:e0257822. [PMID: 36222510 PMCID: PMC9764995 DOI: 10.1128/mbio.02578-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Pathogen-specific rewiring of host cell metabolism creates the metabolically adapted microenvironment required for pathogen replication. Here, we investigated the mechanisms governing the modulation of macrophage mitochondrial properties by the vacuolar pathogen Leishmania. We report that induction of oxidative phosphorylation and mitochondrial biogenesis by Leishmania donovani requires the virulence glycolipid lipophosphoglycan, which stimulates the expression of key transcriptional regulators and structural genes associated with the electron transport chain. Leishmania-induced mitochondriogenesis also requires a lipophosphoglycan-independent pathway involving type I interferon (IFN) receptor signaling. The observation that pharmacological induction of mitochondrial biogenesis enables an avirulent lipophosphoglycan-defective L. donovani mutant to survive in macrophages supports the notion that mitochondrial biogenesis contributes to the creation of a metabolically adapted environment propitious to the colonization of host cells by the parasite. This study provides novel insight into the complex mechanism by which Leishmania metacyclic promastigotes alter host cell mitochondrial biogenesis and metabolism during the colonization process. IMPORTANCE To colonize host phagocytes, Leishmania metacyclic promastigotes subvert host defense mechanisms and create a specialized intracellular niche adapted to their replication. This is accomplished through the action of virulence factors, including the surface coat glycoconjugate lipophosphoglycan. In addition, Leishmania induces proliferation of host cell mitochondria as well as metabolic reprogramming of macrophages. These metabolic alterations are crucial to the colonization process of macrophages, as they may provide metabolites required for parasite growth. In this study, we describe a new key role for lipophosphoglycan in the stimulation of oxidative phosphorylation and mitochondrial biogenesis. We also demonstrate that host cell pattern recognition receptors Toll-like receptor 4 (TLR4) and endosomal TLRs mediate these Leishmania-induced alterations of host cell mitochondrial biology, which also require type I IFN signaling. These findings provide new insight into how Leishmania creates a metabolically adapted environment favorable to their replication.
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NCoR1 controls immune tolerance in conventional dendritic cells by fine-tuning glycolysis and fatty acid oxidation. Redox Biol 2022; 59:102575. [PMID: 36565644 PMCID: PMC9804250 DOI: 10.1016/j.redox.2022.102575] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Dendritic cells (DCs) undergo rapid metabolic reprogramming to generate signal-specific immune responses. The fine control of cellular metabolism underlying DC immune tolerance remains elusive. We have recently reported that NCoR1 ablation generates immune-tolerant DCs through enhanced IL-10, IL-27 and SOCS3 expression. In this study, we did comprehensive metabolic profiling of these tolerogenic DCs and identified that they meet their energy requirements through enhanced glycolysis and oxidative phosphorylation (OXPHOS), supported by fatty acid oxidation-driven oxygen consumption. In addition, the reduced pyruvate and glutamine oxidation with a broken TCA cycle maintains the tolerogenic state of the cells. Mechanistically, the AKT-mTOR-HIF-1α-axis mediated glycolysis and CPT1a-driven β-oxidation were enhanced in these tolerogenic DCs. To confirm these observations, we used synthetic metabolic inhibitors and found that the combined inhibition of HIF-1α and CPT1a using KC7F2 and etomoxir, respectively, compromised the overall transcriptional signature of immunological tolerance including the regulatory cytokines IL-10 and IL-27. Functionally, treatment of tolerogenic DCs with dual KC7F2 and etomoxir treatment perturbed the polarization of co-cultured naïve CD4+ T helper (Th) cells towards Th1 than Tregs, ex vivo and in vivo. Physiologically, the Mycobacterium tuberculosis (Mtb) infection model depicted significantly reduced bacterial burden in BMcDC1 ex vivo and in CD103+ lung DCs in Mtb infected NCoR1DC-/-mice. The spleen of these infected animals also showed increased Th1-mediated responses in the inhibitor-treated group. These findings suggested strong involvement of NCoR1 in immune tolerance. Our validation in primary human monocyte-derived DCs (moDCs) showed diminished NCOR1 expression in dexamethasone-derived tolerogenic moDCs along with suppression of CD4+T cell proliferation and Th1 polarization. Furthermore, the combined KC7F2 and etomoxir treatment rescued the decreased T cell proliferative capacity and the Th1 phenotype. Overall, for the first time, we demonstrated here that NCoR1 mediated control of glycolysis and fatty acid oxidation fine-tunes immune tolerance versus inflammation balance in murine and human DCs.
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241
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Kohl L, Siddique MNAA, Bodendorfer B, Berger R, Preikschat A, Daniel C, Ölke M, Liebler‐Tenorio E, Schulze‐Luehrmann J, Mauermeir M, Yang K, Hayek I, Szperlinski M, Andrack J, Schleicher U, Bozec A, Krönke G, Murray PJ, Wirtz S, Yamamoto M, Schatz V, Jantsch J, Oefner P, Degrandi D, Pfeffer K, Mertens‐Scholz K, Rauber S, Bogdan C, Dettmer K, Lührmann A, Lang R. Macrophages inhibit Coxiella burnetii by the ACOD1-itaconate pathway for containment of Q fever. EMBO Mol Med 2022; 15:e15931. [PMID: 36479617 PMCID: PMC9906395 DOI: 10.15252/emmm.202215931] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 11/19/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
Infection with the intracellular bacterium Coxiella (C.) burnetii can cause chronic Q fever with severe complications and limited treatment options. Here, we identify the enzyme cis-aconitate decarboxylase 1 (ACOD1 or IRG1) and its product itaconate as protective host immune pathway in Q fever. Infection of mice with C. burnetii induced expression of several anti-microbial candidate genes, including Acod1. In macrophages, Acod1 was essential for restricting C. burnetii replication, while other antimicrobial pathways were dispensable. Intratracheal or intraperitoneal infection of Acod1-/- mice caused increased C. burnetii burden, weight loss and stronger inflammatory gene expression. Exogenously added itaconate restored pathogen control in Acod1-/- mouse macrophages and blocked replication in human macrophages. In axenic cultures, itaconate directly inhibited growth of C. burnetii. Finally, treatment of infected Acod1-/- mice with itaconate efficiently reduced the tissue pathogen load. Thus, ACOD1-derived itaconate is a key factor in the macrophage-mediated defense against C. burnetii and may be exploited for novel therapeutic approaches in chronic Q fever.
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Affiliation(s)
- Lisa Kohl
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany
| | - Md Nur A Alam Siddique
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany
| | - Barbara Bodendorfer
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany
| | - Raffaela Berger
- Institute of Functional GenomicsUniversity of RegensburgRegensburgGermany
| | - Annica Preikschat
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany
| | - Christoph Daniel
- Department of NephropathologyUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐NürnbergErlangenGermany
| | - Martha Ölke
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany
| | - Elisabeth Liebler‐Tenorio
- Institute of Molecular Pathogenesis, Friedrich‐Loeffler‐Institut, Federal Research Institute for Animal HealthJenaGermany
| | - Jan Schulze‐Luehrmann
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany
| | - Michael Mauermeir
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany
| | - Kai‐Ting Yang
- Department of Medicine 3Universitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐NürnbergErlangenGermany,Deutsches Zentrum für Immuntherapie (DZI)Friedrich‐Alexander‐Universität Erlangen‐Nürnberg and Universitätsklinikum ErlangenErlangenGermany
| | - Inaya Hayek
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany
| | - Manuela Szperlinski
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany
| | - Jennifer Andrack
- Institute of Bacterial Infections and Zoonoses, Friedrich‐Loeffler‐Institut, Federal Research Institute for Animal HealthJenaGermany
| | - Ulrike Schleicher
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany,Medical Immunology Campus ErlangenFAU Erlangen‐NürnbergErlangenGermany
| | - Aline Bozec
- Department of Medicine 3Universitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐NürnbergErlangenGermany,Medical Immunology Campus ErlangenFAU Erlangen‐NürnbergErlangenGermany
| | - Gerhard Krönke
- Department of Medicine 3Universitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐NürnbergErlangenGermany,Medical Immunology Campus ErlangenFAU Erlangen‐NürnbergErlangenGermany
| | | | - Stefan Wirtz
- Deutsches Zentrum für Immuntherapie (DZI)Friedrich‐Alexander‐Universität Erlangen‐Nürnberg and Universitätsklinikum ErlangenErlangenGermany,Medical Immunology Campus ErlangenFAU Erlangen‐NürnbergErlangenGermany,Department of Medicine 1Universitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐NürnbergErlangenGermany
| | | | - Valentin Schatz
- Institute of Clinical MicrobiologyUniversity Hospital RegensburgRegensburgGermany
| | - Jonathan Jantsch
- Institute of Clinical MicrobiologyUniversity Hospital RegensburgRegensburgGermany,Present address:
Institute for Medical Microbiology, Immunology and HygieneUniversity Hospital Cologne and Faculty of Medicine, University of CologneCologneGermany
| | - Peter Oefner
- Institute of Functional GenomicsUniversity of RegensburgRegensburgGermany
| | - Daniel Degrandi
- Institute of Medical MicrobiologyHeinrich Heine University DüsseldorfDüsseldorfGermany
| | - Klaus Pfeffer
- Institute of Medical MicrobiologyHeinrich Heine University DüsseldorfDüsseldorfGermany
| | - Katja Mertens‐Scholz
- Institute of Bacterial Infections and Zoonoses, Friedrich‐Loeffler‐Institut, Federal Research Institute for Animal HealthJenaGermany
| | - Simon Rauber
- Department of Medicine 3Universitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐NürnbergErlangenGermany,Deutsches Zentrum für Immuntherapie (DZI)Friedrich‐Alexander‐Universität Erlangen‐Nürnberg and Universitätsklinikum ErlangenErlangenGermany
| | - Christian Bogdan
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany,Medical Immunology Campus ErlangenFAU Erlangen‐NürnbergErlangenGermany
| | - Katja Dettmer
- Institute of Functional GenomicsUniversity of RegensburgRegensburgGermany
| | - Anja Lührmann
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany,Medical Immunology Campus ErlangenFAU Erlangen‐NürnbergErlangenGermany
| | - Roland Lang
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und HygieneUniversitätsklinikum Erlangen, Friedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergErlangenGermany,Medical Immunology Campus ErlangenFAU Erlangen‐NürnbergErlangenGermany
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242
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Cervantes-Silva MP, Carroll RG, Wilk MM, Moreira D, Payet CA, O’Siorain JR, Cox SL, Fagan LE, Klavina PA, He Y, Drewinski T, McGinley A, Buel SM, Timmons GA, Early JO, Preston RJS, Hurley JM, Finlay DK, Schoen I, Javier Sánchez-García F, Mills KHG, Curtis AM. The circadian clock influences T cell responses to vaccination by regulating dendritic cell antigen processing. Nat Commun 2022; 13:7217. [PMID: 36470865 PMCID: PMC9722918 DOI: 10.1038/s41467-022-34897-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/09/2022] [Indexed: 12/11/2022] Open
Abstract
Dendritic cells play a key role in processing and presenting antigens to naïve T cells to prime adaptive immunity. Circadian rhythms are known to regulate many aspects of immunity; however, the role of circadian rhythms in dendritic cell function is still unclear. Here, we show greater T cell responses when mice are immunised in the middle of their rest versus their active phase. We find a circadian rhythm in antigen processing that correlates with rhythms in both mitochondrial morphology and metabolism, dependent on the molecular clock gene, Bmal1. Using Mdivi-1, a compound that promotes mitochondrial fusion, we are able to rescue the circadian deficit in antigen processing and mechanistically link mitochondrial morphology and antigen processing. Furthermore, we find that circadian changes in mitochondrial Ca2+ are central to the circadian regulation of antigen processing. Our results indicate that rhythmic changes in mitochondrial calcium, which are associated with changes in mitochondrial morphology, regulate antigen processing.
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Affiliation(s)
- Mariana P. Cervantes-Silva
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Richard G. Carroll
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Mieszko M. Wilk
- grid.8217.c0000 0004 1936 9705School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland ,grid.5522.00000 0001 2162 9631Department of Immunology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Diana Moreira
- grid.8217.c0000 0004 1936 9705School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Cloe A. Payet
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - James R. O’Siorain
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Shannon L. Cox
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Lauren E. Fagan
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland ,grid.4912.e0000 0004 0488 7120Tissue Engineering Research Group (TERG), Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Paula A. Klavina
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland ,grid.4912.e0000 0004 0488 7120Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Yan He
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland ,grid.263761.70000 0001 0198 0694Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Tabea Drewinski
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Alan McGinley
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Sharleen M. Buel
- grid.33647.350000 0001 2160 9198Department of Biological Sciences & Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180 USA
| | - George A. Timmons
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - James O. Early
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland ,grid.4912.e0000 0004 0488 7120Tissue Engineering Research Group (TERG), Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Roger J. S. Preston
- grid.4912.e0000 0004 0488 7120Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Jennifer M. Hurley
- grid.33647.350000 0001 2160 9198Department of Biological Sciences & Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180 USA
| | - David K. Finlay
- grid.8217.c0000 0004 1936 9705School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Ingmar Schoen
- grid.4912.e0000 0004 0488 7120Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - F. Javier Sánchez-García
- grid.418275.d0000 0001 2165 8782Immunoregulation Laboratory, Department of Immunology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, Mexico
| | - Kingston H. G. Mills
- grid.8217.c0000 0004 1936 9705School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Annie M. Curtis
- grid.4912.e0000 0004 0488 7120Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland ,grid.8217.c0000 0004 1936 9705School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland ,grid.4912.e0000 0004 0488 7120Tissue Engineering Research Group (TERG), Royal College of Surgeons in Ireland RCSI, Dublin, Ireland ,grid.4912.e0000 0004 0488 7120Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
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243
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Vegliante MC, Mazzara S, Zaccaria GM, De Summa S, Esposito F, Melle F, Motta G, Sapienza MR, Opinto G, Volpe G, Bucci A, Gargano G, Enjuanes A, Tabanelli V, Fiori S, Minoia C, Clemente F, Negri A, Gulino A, Morello G, Scattone A, Zito AF, Tommasi S, Agostinelli C, Vitolo U, Chiappella A, Barbui AM, Derenzini E, Zinzani PL, Casadei B, Rivas-Delgado A, López-Guillermo A, Campo E, Moschetta A, Guarini A, Pileri SA, Ciavarella S. NR1H3 (LXRα) is associated with pro-inflammatory macrophages, predicts survival and suggests potential therapeutic rationales in diffuse large b-cell lymphoma. Hematol Oncol 2022; 40:864-875. [PMID: 35850118 PMCID: PMC10087298 DOI: 10.1002/hon.3050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/06/2022] [Accepted: 07/14/2022] [Indexed: 12/13/2022]
Abstract
The role of macrophages (Mo) and their prognostic impact in diffuse large B-cell lymphomas (DLBCL) remain controversial. By regulating the lipid metabolism, Liver-X-Receptors (LXRs) control Mo polarization/inflammatory response, and their pharmacological modulation is under clinical investigation to treat human cancers, including lymphomas. Herein, we surveyed the role of LXRs in DLBCL for prognostic purposes. Comparing bulk tumors with purified malignant and normal B-cells, we found an intriguing association of NR1H3, encoding for the LXR-α isoform, with the tumor microenvironment (TME). CIBERSORTx-based purification on large DLBCL datasets revealed a high expression of the receptor transcript in M1-like pro-inflammatory Mo. By determining an expression cut-off of NR1H3, we used digital measurement to validate its prognostic capacity on two large independent on-trial and real-world cohorts. Independently of classical prognosticators, NR1H3high patients displayed longer survival compared with NR1H3low cases and a high-resolution Mo GEP dissection suggested a remarkable transcriptional divergence between subgroups. Overall, our findings indicate NR1H3 as a Mo-related biomarker identifying patients at higher risk and prompt future preclinical studies investigating its mouldability for therapeutic purposes.
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Affiliation(s)
| | - Saveria Mazzara
- Division of Hematopathology, European Institute of Oncology, IRCCS, Milan, Italy
| | - Gian Maria Zaccaria
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Simona De Summa
- Molecular Diagnostics and Pharmacogenetics Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Flavia Esposito
- Department of Mathematics, University of Bari Aldo Moro, Bari, Italy.,INDAM-GNCS Research Group, Rome, Italy
| | - Federica Melle
- Division of Hematopathology, European Institute of Oncology, IRCCS, Milan, Italy
| | - Giovanna Motta
- Division of Hematopathology, European Institute of Oncology, IRCCS, Milan, Italy
| | | | - Giuseppina Opinto
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Giacomo Volpe
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Antonella Bucci
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Grazia Gargano
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy.,INDAM-GNCS Research Group, Rome, Italy
| | - Anna Enjuanes
- Unitat de Genòmica, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona; CIBERONC, Barcelona, Spain
| | - Valentina Tabanelli
- Division of Hematopathology, European Institute of Oncology, IRCCS, Milan, Italy
| | - Stefano Fiori
- Division of Hematopathology, European Institute of Oncology, IRCCS, Milan, Italy
| | - Carla Minoia
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Felice Clemente
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Antonio Negri
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Alessandro Gulino
- Cogentech srl Società Benefit, FIRC Institute of Molecular Oncology (IFOM), Milan, Italy
| | - Gaia Morello
- Department of Health Sciences, Tumor Immunology Unit, University of Palermo School of Medicine, Palermo, Italy
| | - Anna Scattone
- Pathology Department, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Alfredo F Zito
- Pathology Department, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Stefania Tommasi
- Molecular Diagnostics and Pharmacogenetics Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Claudio Agostinelli
- Haematopathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | | | - Annalisa Chiappella
- Division of Hematology and Stem Cell Transplantation, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Anna Maria Barbui
- Department of Oncology and Hematology, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Enrico Derenzini
- Onco-Hematology Division, European Institute of Oncology IRCCS, Milan, Italy.,Department of Health Sciences, University of Milan, Milan, Italy
| | - Pier Luigi Zinzani
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.,Istituto di Ematologia "Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Beatrice Casadei
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.,Istituto di Ematologia "Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Alfredo Rivas-Delgado
- CIBERONC, Barcelona, Spain; Hematology Department, Hospital Clínic, Barcelona; IDIBAPS, Barcelona, Spain
| | - Armando López-Guillermo
- CIBERONC, Barcelona, Spain; Hematology Department, Hospital Clínic, Barcelona; IDIBAPS, Barcelona, Spain
| | - Elias Campo
- CIBERONC, Barcelona, Spain; Haematopathology Unit, Pathology Department, Hospital Clínic, Barcelona; University of Barcelona, Barcelona, Spain
| | - Antonio Moschetta
- Department of Interdisciplinary Medicine, University of Bari Aldo Moro, Bari, Italy
| | - Attilio Guarini
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Stefano A Pileri
- Division of Hematopathology, European Institute of Oncology, IRCCS, Milan, Italy
| | - Sabino Ciavarella
- Hematology and Cell Therapy Unit, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
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244
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The inflammasomes and immunometabolism: A small molecule inhibitor of the NLRP3 inflammasome. Biochem Biophys Res Commun 2022; 633:84-87. [DOI: 10.1016/j.bbrc.2022.09.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/06/2022]
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245
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Cao H, Gao S, Jogani R, Sugimura R. The Tumor Microenvironment Reprograms Immune Cells. Cell Reprogram 2022; 24:343-352. [PMID: 36301256 DOI: 10.1089/cell.2022.0047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Tumor tissue comprises a highly complex network of diverse cell types. The tumor microenvironment (TME) can be mainly subdivided into cancer cells and stromal cell compartments, the latter include different types of immune cells, fibroblasts, endothelial cells, and pericytes. Tumor cells reprogram immune cells and other stromal cells in the TME to constrain their antitumor capacity by creating an immunosuppressive milieu and metabolism competition. Moreover, the reprogramming effect on immune cells is localized not only in the tumor but also at the systemic level. With wide application of single-cell sequencing technology, tumor-specific characteristics of immune cells and other stromal cells in the TME have been dissected. In this review, we mainly focus on how tumor cells reprogram immune cells both within the TME and peripheral blood. This information can further help us to improve the efficiency of current immunotherapy as well as bring up new ideas to combat cancer.
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Affiliation(s)
- Handi Cao
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong.,Centre for Translational Stem Cell Biology, Science Park, Hong Kong
| | - Sanxing Gao
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong
| | - Ritika Jogani
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong
| | - Ryohichi Sugimura
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong.,Centre for Translational Stem Cell Biology, Science Park, Hong Kong
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246
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Shanley LC, Fitzgerald HK, O’Rourke SA, Dunne A. Endogenous drivers of altered immune cell metabolism. Exp Biol Med (Maywood) 2022; 247:2192-2200. [PMID: 36511089 PMCID: PMC9899986 DOI: 10.1177/15353702221134093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Dysregulated metabolism has long been recognized as a feature of many metabolic disorders. However, recent studies demonstrating that metabolic reprogramming occurs in immune cells have led to a growing interest in the relationship between metabolic rewiring and immune-mediated disease pathogeneses. It is clear now that immune cell subsets engage in different metabolic pathways depending on their activation and/or maturation state. As a result, it may be possible to modulate metabolic reprogramming for clinical benefit. In this review, we provide an overview of immune cell metabolism with focus on endogenous drivers of metabolic reprogramming given their link to a number of immune-mediated disorders.
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Affiliation(s)
- Lianne C Shanley
- School of Biochemistry &
Immunology, Trinity College, University of Dublin, Dublin 2, Ireland
- Centre for Advanced Materials and
Bioengineering Research (AMBER), Trinity College Dublin, Dublin 2,
Ireland
| | - Hannah K Fitzgerald
- School of Biochemistry &
Immunology, Trinity College, University of Dublin, Dublin 2, Ireland
| | - Sinead A O’Rourke
- School of Biochemistry &
Immunology, Trinity College, University of Dublin, Dublin 2, Ireland
- School of Engineering, Trinity
College, University of Dublin, Dublin 2, Ireland
| | - Aisling Dunne
- School of Biochemistry &
Immunology, Trinity College, University of Dublin, Dublin 2, Ireland
- Centre for Advanced Materials and
Bioengineering Research (AMBER), Trinity College Dublin, Dublin 2,
Ireland
- School of Medicine, Trinity
College, University of Dublin, Dublin 2, Ireland
- Aisling Dunne.
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247
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Zhao H, Yu Y, Wang Y, Zhao L, Yang A, Hu Y, Pan Z, Wang Z, Yang J, Han Q, Tian Z, Zhang J. Cholesterol accumulation on dendritic cells reverses chronic hepatitis B virus infection-induced dysfunction. Cell Mol Immunol 2022; 19:1347-1360. [PMID: 36369367 PMCID: PMC9708651 DOI: 10.1038/s41423-022-00939-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 09/11/2022] [Accepted: 10/10/2022] [Indexed: 11/13/2022] Open
Abstract
Chronic hepatitis B (CHB) infection remains a serious public health problem worldwide; however, the relationship between cholesterol levels and CHB remains unclear. We isolated peripheral blood mononuclear cells from healthy blood donors and CHB patients to analyze free cholesterol levels, lipid raft formation, and cholesterol metabolism-related pathways. Hepatitis B virus (HBV)-carrier mice were generated and used to confirm changes in cholesterol metabolism and cell-surface lipid raft formation in dendritic cells (DCs) in the context of CHB. Additionally, HBV-carrier mice were immunized with a recombinant HBV vaccine (rHBVvac) combined with lipophilic statins and evaluated for vaccine efficacy against HBV. Serum samples were analyzed for HBsAg, anti-HBs, and alanine aminotransferase levels, and liver samples were evaluated for HBV DNA and RNA and HBcAg. CHB reduced free cholesterol levels and suppressed lipid raft formation on DCs in patients with CHB and HBV-carrier mice, whereas administration of lipophilic statins promoted free cholesterol accumulation and restored lipid rafts on DCs accompanied by an enhanced antigen-presentation ability in vitro and in vivo. Cholesterol accumulation on DCs improved the rHBVvac-mediated elimination of serum HBV DNA and intrahepatic HBV DNA, HBV RNA, and HBcAg and promoted the rHBVvac-mediated generation and polyfunctionality of HBV-specific CD11ahi CD8αlo cells, induction of the development of memory responses against HBV reinfection, and seroconversion from HBsAg to anti-HBs. The results demonstrated the important role of cholesterol levels in DC dysfunction during CHB, suggesting that strategies to increase cholesterol accumulation on DCs might enhance therapeutic vaccine efficacy against HBV and support development toward clinical CHB treatment.
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Affiliation(s)
- Huajun Zhao
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Yating Yu
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Yucan Wang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Lianhui Zhao
- Department of Gastroenterology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Ailu Yang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Yifei Hu
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Zhaoyi Pan
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Zixuan Wang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Jiarui Yang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Qiuju Han
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Zhigang Tian
- School of Life Sciences, University of Science and Technology of China, Hefei, 230000, China
| | - Jian Zhang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China.
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248
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Lu LG, Zhou ZL, Wang XY, Liu BY, Lu JY, Liu S, Zhang GB, Zhan MX, Chen Y. PD-L1 blockade liberates intrinsic antitumourigenic properties of glycolytic macrophages in hepatocellular carcinoma. Gut 2022; 71:2551-2560. [PMID: 35173040 PMCID: PMC9664131 DOI: 10.1136/gutjnl-2021-326350] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 02/06/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Patients with increased PD-L1+ host cells in tumours are more potent to benefit from antiprogrammed death-1/programmed death ligand-1 (PD-L1) treatment, but the underlying mechanism is still unclear. We aim to elucidate the nature, regulation and functional relevance of PD-L1+ host cells in hepatocellular carcinoma (HCC). DESIGN A total of untreated 184 HCC patients was enrolled randomly. C57BL/6 mice are given injection of Hepa1-6 cells to form autologous hepatoma. ELISpot, flow cytometry and real-time PCR are applied to analyse the phenotypic characteristics of PD-L1+ cells isolated directly from HCC specimens paired with blood samples or generated from ex vivo and in vitro culture systems. Immunofluorescence and immunohistochemistry are performed to detect the presence of immune cells on paraffin-embedded and formalin-fixed samples. The underlying regulatory mechanisms of metabolic switching are assessed by both in vitro and in vivo studies. RESULTS We demonstrate that PD-L1+ host macrophages, which constructively represent the major cellular source of PD-L1 in HCC tumours, display an HLA-DRhighCD86high glycolytic phenotype, significantly produce antitumourigenic IL-12p70 and are polarised by intrinsic glycolytic metabolism. Mechanistically, a key glycolytic enzyme PKM2 triggered by hepatoma cell derived fibronectin 1, via a HIF-1α-dependent manner, concurrently controls the antitumourigenic properties and inflammation-mediated PD-L1 expression in glycolytic macrophages. Importantly, although increased PKM2+ glycolytic macrophages predict poor prognosis of patients, blocking PD-L1 on these cells eliminates PD-L1-dominant immunosuppression and liberates intrinsic antitumourigenic properties. CONCLUSIONS Selectively modulating the 'context' of glycolytic macrophages in HCC tumours might restore their antitumourigenic properties and provide a precise strategy for anticancer therapy.
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Affiliation(s)
- Li-Gong Lu
- Interventional Radiology Center, Zhuhai Precision Medicine Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, China
| | - Zhi-Ling Zhou
- Interventional Radiology Center, Zhuhai Precision Medicine Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, China
| | - Xu-Yan Wang
- Interventional Radiology Center, Zhuhai Precision Medicine Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, China
| | - Bo-Yuan Liu
- Department of Immunology, Key Laboratory of Human Functional Genomics of Jiangsu Province, Gusu School, Nanjing Medical University, Nanjing, Jiangsu, China,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, Jiangsu, China
| | - Jin-Ying Lu
- Department of Immunology, Key Laboratory of Human Functional Genomics of Jiangsu Province, Gusu School, Nanjing Medical University, Nanjing, Jiangsu, China,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, Jiangsu, China
| | - Shuai Liu
- Department of Immunology, Key Laboratory of Human Functional Genomics of Jiangsu Province, Gusu School, Nanjing Medical University, Nanjing, Jiangsu, China,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, Jiangsu, China
| | - Guang-Bo Zhang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Mei-Xiao Zhan
- Interventional Radiology Center, Zhuhai Precision Medicine Center, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, Guangdong, China
| | - Yun Chen
- Department of Immunology, Key Laboratory of Human Functional Genomics of Jiangsu Province, Gusu School, Nanjing Medical University, Nanjing, Jiangsu, China .,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, Jiangsu, China
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249
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Yao M, Chen Z, He X, Long J, Xia X, Li Z, Yang Y, Ao L, Xing W, Lian Q, Liang H, Xu X. Cross talk between glucose metabolism and immunosuppression in IFN-γ–primed mesenchymal stem cells. Life Sci Alliance 2022; 5:5/12/e202201493. [PMID: 36260750 PMCID: PMC9463493 DOI: 10.26508/lsa.202201493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 08/30/2022] [Accepted: 08/30/2022] [Indexed: 11/28/2022] Open
Abstract
This study reveals a novel relationship between mesenchymal stem cell immunomodulation and metabolism and provides a new strategy to improve their therapeutic efficacy in inflammatory diseases. The immunosuppressive function “licensed” by IFN-γ is a vital attribute of mesenchymal stem cells (MSCs) widely used in the treatment of inflammatory diseases. However, the mechanism and impact of metabolic reprogramming on MSC immunomodulatory plasticity remain unclear. Here, we explored the mechanism by which glucose metabolism affects the immunomodulatory reprogramming of MSCs “licensed” by IFN-γ. Our data showed that glucose metabolism regulates the immunosuppressive function of human umbilical cord MSCs (hUC-MSCs) challenged by IFN-γ through the Janus kinase–signal transducer and activator of transcription (JAK-STAT) pathway. Furthermore, ATP facilitated the cross talk between glucose metabolism and the JAK-STAT system, which stimulates the phosphorylation of JAK2 and STATs, as well as the expression of indoleamine 2, 3-dioxygenase and programmed cell death-1 ligand. Moreover, ATP synergistically enhanced the therapeutic efficacy of IFN-γ–primed hUC-MSCs against acute pneumonia in mice. These results indicate a novel cross talk between the immunosuppressive function, glucose metabolism, and mitochondrial oxidation and provide a novel targeting strategy to enhance the therapeutic efficacies of hUC-MSCs.
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Affiliation(s)
- Mengwei Yao
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Zhuo Chen
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Xiao He
- PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Jiaoyue Long
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Xuewei Xia
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Zhan Li
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Yu Yang
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Luoquan Ao
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Wei Xing
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
| | - Qizhou Lian
- HKUMed Laboratory of Cellular Therapeutics, and State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Pok Fu Lam, Hong Kong
- Cord Blood Bank, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
- Department of Surgery, The University of Hong Kong Shenzhen Hospital, Shenzhen, China
| | - Huaping Liang
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Xiang Xu
- Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, Chongqing, China
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
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250
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Bussi C, Heunis T, Pellegrino E, Bernard EM, Bah N, Dos Santos MS, Santucci P, Aylan B, Rodgers A, Fearns A, Mitschke J, Moore C, MacRae JI, Greco M, Reinheckel T, Trost M, Gutierrez MG. Lysosomal damage drives mitochondrial proteome remodelling and reprograms macrophage immunometabolism. Nat Commun 2022; 13:7338. [PMID: 36443305 PMCID: PMC9705561 DOI: 10.1038/s41467-022-34632-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 10/31/2022] [Indexed: 11/29/2022] Open
Abstract
Transient lysosomal damage after infection with cytosolic pathogens or silica crystals uptake results in protease leakage. Whether limited leakage of lysosomal contents into the cytosol affects the function of cytoplasmic organelles is unknown. Here, we show that sterile and non-sterile lysosomal damage triggers a cell death independent proteolytic remodelling of the mitochondrial proteome in macrophages. Mitochondrial metabolic reprogramming required leakage of lysosomal cathepsins and was independent of mitophagy, mitoproteases and proteasome degradation. In an in vivo mouse model of endomembrane damage, live lung macrophages that internalised crystals displayed impaired mitochondrial function. Single-cell RNA-sequencing revealed that lysosomal damage skewed metabolic and immune responses in alveolar macrophages subsets with increased lysosomal content. Functionally, drug modulation of macrophage metabolism impacted host responses to Mycobacterium tuberculosis infection in an endomembrane damage dependent way. This work uncovers an inter-organelle communication pathway, providing a general mechanism by which macrophages undergo mitochondrial metabolic reprograming after endomembrane damage.
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Affiliation(s)
| | - Tiaan Heunis
- Biosciences Institute, Newcastle University, Newcastle, UK
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | | | - Elliott M Bernard
- The Francis Crick Institute, London, UK
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | | | | | - Pierre Santucci
- The Francis Crick Institute, London, UK
- Aix-Marseille Univ, CNRS, LISM, IMM FR3479, Marseille, France
| | | | | | | | - Julia Mitschke
- Institute for Molecular Medicine and Cell Research, Medical Faculty, Albert-Ludwigs-University Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | | | - Maria Greco
- The Francis Crick Institute, London, UK
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Thomas Reinheckel
- Institute for Molecular Medicine and Cell Research, Medical Faculty, Albert-Ludwigs-University Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
- Signalling Research Centres BIOSS and CIBSS, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Matthias Trost
- Biosciences Institute, Newcastle University, Newcastle, UK
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