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Aala WJF, Hou PC, Hong YK, Lin YC, Lee YR, Tu WT, Papanikolaou M, Benzian-Olsson N, Onoufriadis A, I Chen Harn H, Hwang DY, Cheng SM, Lu K, Chen PC, McGrath JA, Hsu CK. Dominant dystrophic epidermolysis bullosa is associated with glycolytically active GATA3+ T helper 2 cells which may contribute to pruritus in lesional skin. Br J Dermatol 2024; 191:252-260. [PMID: 38477474 DOI: 10.1093/bjd/ljae110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 03/05/2024] [Accepted: 03/08/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Dominant dystrophic epidermolysis bullosa (DDEB) is characterized by trauma-induced blisters and, in some individuals, intense pruritus. Precisely what causes itch in DDEB and optimal ways to reduce it have not been fully determined. OBJECTIVES To characterize DDEB skin transcriptomes to identify therapeutic targets to reduce pruritus in patients. METHODS Using bulk RNA sequencing, we evaluated affected and unaffected skin biopsy samples from six patients with DDEB (all with the very itchy pruriginosa subtype) and four healthy individuals. Single-cell transcriptomes of affected (n = 2) and unaffected (n = 1) DDEB skin and healthy skin (n = 2) were obtained. Dupilumab treatment was provided for three patients. RESULTS The skin bulk transcriptome showed significant enrichment of T helper (Th)1/2 and Th17 pathways in affected DDEB skin compared with nonlesional DDEB skin and healthy skin. Single-cell transcriptomics showed an association of glycolytically active GATA3+ Th2 cells in affected DDEB skin. Treatment with dupilumab in three people with DDEB led to significantly reduced visual analogue scale (VAS) itch scores after 12 weeks (mean VAS 3.83) compared with pretreatment (mean VAS 7.83). Bulk RNAseq and quantitative polymerase chain reaction showed that healthy skin and dupilumab-treated epidermolysis bullosa (EB) pruriginosa skin have similar transcriptomic profiles and reduced Th1/Th2 and Th17 pathway enrichment. CONCLUSIONS Single-cell RNAseq helps define an enhanced DDEB-associated Th2 profile and rationalizes drug repurposing of anti-Th2 drugs in treating DDEB pruritus.
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Affiliation(s)
- Wilson Jr F Aala
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ping-Chen Hou
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Kai Hong
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Chen Lin
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Rong Lee
- School of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Ting Tu
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Marieta Papanikolaou
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, UK
| | - Natashia Benzian-Olsson
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, UK
| | - Alexandros Onoufriadis
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, UK
- Laboratory of Medical Biology and Genetics, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Hans I Chen Harn
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Daw-Yang Hwang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Siao Muk Cheng
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Kurt Lu
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Peng-Chieh Chen
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - John A McGrath
- School of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, UK
| | - Chao-Kai Hsu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan
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Chen C, Han P, Qing Y. Metabolic heterogeneity in tumor microenvironment - A novel landmark for immunotherapy. Autoimmun Rev 2024:103579. [PMID: 39004158 DOI: 10.1016/j.autrev.2024.103579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/10/2024] [Accepted: 07/09/2024] [Indexed: 07/16/2024]
Abstract
The surrounding non-cancer cells and tumor cells that make up the tumor microenvironment (TME) have various metabolic rhythms. TME metabolic heterogeneity is influenced by the intricate network of metabolic control within and between cells. DNA, protein, transport, and microbial levels are important regulators of TME metabolic homeostasis. The effectiveness of immunotherapy is also closely correlated with alterations in TME metabolism. The response of a tumor patient to immunotherapy is influenced by a variety of variables, including intracellular metabolic reprogramming, metabolic interaction between cells, ecological changes within and between tumors, and general dietary preferences. Although immunotherapy and targeted therapy have made great strides, their use in the accurate identification and treatment of tumors still has several limitations. The function of TME metabolic heterogeneity in tumor immunotherapy is summarized in this article. It focuses on how metabolic heterogeneity develops and is regulated as a tumor progresses, the precise molecular mechanisms and potential clinical significance of imbalances in intracellular metabolic homeostasis and intercellular metabolic coupling and interaction, as well as the benefits and drawbacks of targeted metabolism used in conjunction with immunotherapy. This offers insightful knowledge and important implications for individualized tumor patient diagnosis and treatment plans in the future.
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Affiliation(s)
- Chen Chen
- The First Affiliated Hospital of Ningbo University, Ningbo 315211, Zhejiang, China
| | - Peng Han
- Harbin Medical University Cancer Hospital, Harbin 150081, Heilongjiang, China.
| | - Yanping Qing
- The First Affiliated Hospital of Ningbo University, Ningbo 315211, Zhejiang, China.
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3
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Kemp F, Braverman EL, Byersdorfer CA. Fatty acid oxidation in immune function. Front Immunol 2024; 15:1420336. [PMID: 39007133 PMCID: PMC11240245 DOI: 10.3389/fimmu.2024.1420336] [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: 04/19/2024] [Accepted: 05/31/2024] [Indexed: 07/16/2024] Open
Abstract
Cellular metabolism is a crucial determinant of immune cell fate and function. Extensive studies have demonstrated that metabolic decisions influence immune cell activation, differentiation, and cellular capacity, in the process impacting an organism's ability to stave off infection or recover from injury. Conversely, metabolic dysregulation can contribute to the severity of multiple disease conditions including autoimmunity, alloimmunity, and cancer. Emerging data also demonstrate that metabolic cues and profiles can influence the success or failure of adoptive cellular therapies. Importantly, immunometabolism is not one size fits all; and different immune cell types, and even subdivisions within distinct cell populations utilize different metabolic pathways to optimize function. Metabolic preference can also change depending on the microenvironment in which cells are activated. For this reason, understanding the metabolic requirements of different subsets of immune cells is critical to therapeutically modulating different disease states or maximizing cellular function for downstream applications. Fatty acid oxidation (FAO), in particular, plays multiple roles in immune cells, providing both pro- and anti-inflammatory effects. Herein, we review the major metabolic pathways available to immune cells, then focus more closely on the role of FAO in different immune cell subsets. Understanding how and why FAO is utilized by different immune cells will allow for the design of optimal therapeutic interventions targeting this pathway.
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Affiliation(s)
| | | | - Craig A. Byersdorfer
- Department of Pediatrics, Division of Blood and Marrow Transplant and Cellular Therapies, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
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Peng M, Grootaert C, Vercauteren M, Boon N, Janssen C, Rajkovic A, Asselman J. Probing Long-Term Impacts: Low-Dose Polystyrene Nanoplastics Exacerbate Mitochondrial Health and Evoke Secondary Glycolysis via Repeated and Single Dosing. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:9967-9979. [PMID: 38814788 DOI: 10.1021/acs.est.3c10868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Nanoplastics (NPs) are omnipresent in the environment and contribute to human exposure. However, little is known regarding the long-term effects of NPs on human health. In this study, human intestinal Caco-2 cells were exposed to polystyrene nanoplastics (nanoPS) in an environmentally relevant concentration range (102-109 particles/mL) under two realistic exposure scenarios. In the first scenario, cells were repeatedly exposed to nanoPS every 2 days for 12 days to study the long-term effects. In the second scenario, only nanoPS was added once and Caco-2 cells were cultured for 12 days to study the duration of the initial effects of NPs. Under repeated dosing, initial subtle effects on mitochondria induced by low concentrations would accrue over consistent exposure to nanoPS and finally lead to significant impairment of mitochondrial respiration, mitochondrial mass, and cell differentiation process at the end of prolonged exposure, accompanied by significantly increased glycolysis over the whole exposure period. Single dosing of nanoPS elicited transient effects on mitochondrial and glycolytic functions, as well as increased reactive oxygen species (ROS) production in the early phase of exposure, but the self-recovery capacity of cells mitigated these effects at intermediate culture times. Notably, secondary effects on glycolysis and ROS production were observed during the late culture period, while the cell differentiation process and mitochondrial mass were not affected at the end. These long-term effects are of crucial importance for comprehensively evaluating the health hazards arising from lifetime exposure to NPs, complementing the extensively observed acute effects associated with prevalent short-term exposure to high concentrations. Our study underlines the need to study the toxicity of NPs in realistic long-term exposure scenarios such as repeated dosing.
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Affiliation(s)
- Miao Peng
- Laboratory of Environmental Toxicology and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
- Blue Growth Research Lab, Ghent University, Wetenschapspark 1, 8400 Oostende Belgium
| | - Charlotte Grootaert
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Maaike Vercauteren
- Laboratory of Environmental Toxicology and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
- Blue Growth Research Lab, Ghent University, Wetenschapspark 1, 8400 Oostende Belgium
| | - Nico Boon
- Center for Microbial Technology and Ecology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Colin Janssen
- Laboratory of Environmental Toxicology and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
- Blue Growth Research Lab, Ghent University, Wetenschapspark 1, 8400 Oostende Belgium
| | - Andreja Rajkovic
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Jana Asselman
- Laboratory of Environmental Toxicology and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
- Blue Growth Research Lab, Ghent University, Wetenschapspark 1, 8400 Oostende Belgium
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Gázquez A, García-Serna AM, Hernández-Caselles T, Martín-Orozco E, Cantero-Cano E, Prieto-Sánchez MT, Molina-Ruano MD, Castillo-Lacalle R, Vioque J, Morales E, García-Marcos L, Larqué E. Plasma polyamines during pregnancy and their relationships with maternal allergies and the immune response of the neonates. Pediatr Allergy Immunol 2024; 35:e14167. [PMID: 38860435 DOI: 10.1111/pai.14167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 04/22/2024] [Accepted: 05/13/2024] [Indexed: 06/12/2024]
Abstract
BACKGROUND Some studies have reported that polyamine levels may influence immune system programming. The aim of this study was to evaluate the polyamine profile during gestation and its associations with maternal allergy and cytokine production in cord blood cells in response to different allergenic stimuli. METHODS Polyamines were determined in plasma of pregnant women (24 weeks, N = 674) and in umbilical cord samples (N = 353 vein and N = 160 artery) from the Mediterranean NELA birth cohort. Immune cell populations were quantified, and the production of cytokines in response to different allergic and mitogenic stimuli was assessed in cord blood. RESULTS Spermidine and spermine were the most prevalent polyamines in maternal, cord venous, and cord arterial plasma. Maternal allergies, especially allergic conjunctivitis, were associated with lower spermine in umbilical cord vein. Higher levels of polyamines were associated with higher lymphocyte number but lower Th2-related cells in cord venous blood. Those subjects with higher levels of circulating polyamines in cord showed lower production of inflammatory cytokines, especially IFN-α, and lower production of Th2-related cytokines, mainly IL-4 and IL-5. The effects of polyamines on Th1-related cytokines production were uncertain. CONCLUSIONS Spermidine and spermine are the predominant polyamines in plasma of pregnant women at mid-pregnancy and also in umbilical cord. Maternal allergic diseases like allergic conjunctivitis are related to lower levels of polyamines in cord vein, which could influence the immune response of the newborn. Cord polyamine content is related to a decreased Th2 response and inflammatory cytokines production, which might be important to reduce an allergenic phenotype in the neonate.
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Affiliation(s)
- Antonio Gázquez
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
- Department of Physiology, University of Murcia, Murcia, Spain
| | - Azahara M García-Serna
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
- Department of Public Health Sciences, University of Murcia, Murcia, Spain
| | - Trinidad Hernández-Caselles
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Network of Asthma and Adverse and Allergic Reactions (ARADyAL), Madrid, Spain
| | - Elena Martín-Orozco
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Network of Asthma and Adverse and Allergic Reactions (ARADyAL), Madrid, Spain
| | | | - María T Prieto-Sánchez
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
- Obstetrics & Gynaecology Service, "Virgen de la Arrixaca" University Clinical Hospital, University of Murcia, Murcia, Spain
| | - María D Molina-Ruano
- Obstetrics & Gynaecology Service, "Virgen de la Arrixaca" University Clinical Hospital, University of Murcia, Murcia, Spain
| | - Rafaela Castillo-Lacalle
- Obstetrics & Gynaecology Service, "Virgen de la Arrixaca" University Clinical Hospital, University of Murcia, Murcia, Spain
| | - Jesús Vioque
- Health and Biomedical Research Institute of Alicante (ISABIAL-UMH), Alicante, Spain
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Eva Morales
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
- Department of Public Health Sciences, University of Murcia, Murcia, Spain
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Luís García-Marcos
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
- Network of Asthma and Adverse and Allergic Reactions (ARADyAL), Madrid, Spain
| | - Elvira Larqué
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
- Department of Physiology, University of Murcia, Murcia, Spain
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6
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Lu Y, Wu YW, Pu J, Wu QF, Dong Q, Zhao N, Li GR, Du YM. Acacetin alleviates autoimmune myocarditis by regulating CD4+ T cell mitochondrial respiration. Chin Med 2024; 19:68. [PMID: 38741130 DOI: 10.1186/s13020-024-00943-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 05/05/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Myocarditis refers to an autoimmune inflammatory response of the myocardium with characterization of self-reactive CD4+ T cell activation, which lacks effective treatment and has a poor prognosis. Acacetin is a natural flavonoid product that has been reported to have anti-inflammatory effects. However, acacetin has not been investigated in myocarditis. METHODS Oral acacetin treatment was administered in an experimental autoimmune myocarditis model established with myosin heavy chain-alpha peptide. Echocardiography, pathological staining, and RT-qPCR were used to detect cardiac function, myocardial injury, and inflammation levels. Flow cytometry was utilized to detect the effect of acacetin on CD4+ T cell function. RNA-seq, molecular docking, and microscale thermophoresis (MST) were employed to investigate potential mechanisms. Seahorse analysis, mitoSOX, JC-1, and mitotracker were utilized to detect the effect of acacetin on mitochondrial function. RESULTS Acacetin attenuated cardiac injury and fibrosis as well as heart dysfunction, and reduced cardiac inflammatory cytokines and ratio of effector CD4+ T and Th17 cells. Acacetin inhibited CD4+ T cell activation, proliferation, and Th17 cell differentiation. Mechanistically, the effects of acacetin were related to reducing mitochondrial complex II activity thereby inhibiting mitochondrial respiration and mitochondrial reactive oxygen species in CD4+ T cells. CONCLUSION Acacetin may be a valuable therapeutic drug in treating CD4+ T cell-mediated myocarditis.
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Affiliation(s)
- Yang Lu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Research Center of Ion Channelopathy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Lab for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yu-Wei Wu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Research Center of Ion Channelopathy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Lab for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiu Pu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Research Center of Ion Channelopathy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Lab for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiong-Feng Wu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Research Center of Ion Channelopathy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Lab for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Dong
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Research Center of Ion Channelopathy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Lab for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ning Zhao
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Research Center of Ion Channelopathy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Lab for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gui-Rong Li
- Nanjing Amazigh Pharma Limited, Nanjing, Jiangsu, China
| | - Yi-Mei Du
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Research Center of Ion Channelopathy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Key Lab for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Zhang J, Wei X, Zhang Q, Jiao X, Li K, Geng M, Cao Y, Wang D, Cheng J, Yang J. Fish Uses CTLA-4 Immune Checkpoint to Suppress mTORC1-Controlled T-Cell Glycolysis and Immunity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:1113-1128. [PMID: 38363204 DOI: 10.4049/jimmunol.2300599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/26/2024] [Indexed: 02/17/2024]
Abstract
As an immune checkpoint, cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) suppresses the activation, proliferation, and effector function of T cells, thus preventing an overexuberant response and maintaining immune homeostasis. However, whether and how this immune checkpoint functions in early vertebrates remains unknown. In the current study, using a Nile tilapia (Oreochromis niloticus) model, we investigated the suppression of T cell response by CTLA-4 in bony fish. Tilapia CTLA-4 is constitutively expressed in lymphoid tissues, and its mRNA and protein expression in lymphocytes are upregulated following PHA stimulation or Edwardsiella piscicida infection. Blockade of CTLA-4 signaling enhanced T cell activation and proliferation but inhibited activation-induced T cell apoptosis, indicating that CTLA-4 negatively regulated T cell activation. In addition, blocking CTLA-4 signaling in vivo increased the differentiation potential and cytotoxicity of T cells, resulting in an enhanced T cell response during E. piscicida infection. Tilapia CTLA-4 competitively bound the B7.2/CD86 molecule with CD28, thus antagonizing the CD28-mediated costimulatory signal of T cell activation. Furthermore, inhibition of mammalian/mechanistic target of rapamycin complex 1 (mTORC1) signaling, c-Myc, or glycolysis markedly impaired the CTLA-4 blockade-enhanced T cell response, suggesting that CTLA-4 suppressed the T cell response of tilapia by inhibiting mTORC1/c-Myc axis-controlled glycolysis. Overall, the findings indicate a detailed mechanism by which CTLA-4 suppresses T cell immunity in tilapia; therefore, we propose that early vertebrates have evolved sophisticated mechanisms coupling immune checkpoints and metabolic reprogramming to avoid an overexuberant T cell response.
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Affiliation(s)
- Jiansong Zhang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Xiumei Wei
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Qian Zhang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Xinying Jiao
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Kang Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Ming Geng
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Yi Cao
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Ding Wang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jie Cheng
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jialong Yang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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8
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Furment MM, Perl A. Immmunometabolism of systemic lupus erythematosus. Clin Immunol 2024; 261:109939. [PMID: 38382658 DOI: 10.1016/j.clim.2024.109939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/26/2024] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Abstract
Systemic lupus erythematosus (SLE) is a potentially fatal chronic autoimmune disease which is underlain by complex dysfunction of the innate and adaptive immune systems. Although a series of well-defined genetic and environmental factors have been implicated in disease etiology, neither the development nor the persistence of SLE is well understood. Given that several disease susceptibility genes and environmental factors interact and influence inflammatory lineage specification through metabolism, the field of immunometabolism has become a forefront of cutting edge research. Along these lines, metabolic checkpoints of pathogenesis have been identified as targets of effective therapeutic interventions in mouse models and validated in clinical trials. Ongoing studies focus on mitochondrial oxidative stress, activation of the mechanistic target of rapamycin, calcium signaling, glucose utilization, tryptophan degradation, and metabolic cross-talk between gut microbiota and the host immune system.
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Affiliation(s)
- Marlene Marte Furment
- Departments of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York 13210, United States of America
| | - Andras Perl
- Departments of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York 13210, United States of America; Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York 13210, United States of America; Microbiology and Immunology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York 13210, United States of America.
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9
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Lee S, Song SG, Kim G, Kim S, Yoo HJ, Koh J, Kim YJ, Tian J, Cho E, Choi YS, Chang S, Shin HM, Jung KC, Kim JH, Kim TM, Jeon YK, Kim HY, Shong M, Kim JH, Chung DH. CRIF1 deficiency induces FOXP3 LOW inflammatory non-suppressive regulatory T cells, thereby promoting antitumor immunity. SCIENCE ADVANCES 2024; 10:eadj9600. [PMID: 38536932 PMCID: PMC10971410 DOI: 10.1126/sciadv.adj9600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 02/22/2024] [Indexed: 04/05/2024]
Abstract
Recently identified human FOXP3lowCD45RA- inflammatory non-suppressive (INS) cells produce proinflammatory cytokines, exhibit reduced suppressiveness, and promote antitumor immunity unlike conventional regulatory T cells (Tregs). In spite of their implication in tumors, the mechanism for generation of FOXP3lowCD45RA- INS cells in vivo is unclear. We showed that the FOXP3lowCD45RA- cells in human tumors demonstrate attenuated expression of CRIF1, a vital mitochondrial regulator. Mice with CRIF1 deficiency in Tregs bore Foxp3lowINS-Tregs with mitochondrial dysfunction and metabolic reprograming. The enhanced glutaminolysis activated α-ketoglutarate-mTORC1 axis, which promoted proinflammatory cytokine expression by inducing EOMES and SATB1 expression. Moreover, chromatin openness of the regulatory regions of the Ifng and Il4 genes was increased, which facilitated EOMES/SATB1 binding. The increased α-ketoglutarate-derived 2-hydroxyglutarate down-regulated Foxp3 expression by methylating the Foxp3 gene regulatory regions. Furthermore, CRIF1 deficiency-induced Foxp3lowINS-Tregs suppressed tumor growth in an IFN-γ-dependent manner. Thus, CRIF1 deficiency-mediated mitochondrial dysfunction results in the induction of Foxp3lowINS-Tregs including FOXP3lowCD45RA- cells that promote antitumor immunity.
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Affiliation(s)
- Sangsin Lee
- Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Seung Geun Song
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Gwanghun Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Republic of Korea
| | - Sehui Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun Jung Yoo
- Laboratory of Immunology and Vaccine Innovation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Jaemoon Koh
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Ye-Ji Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Jingwen Tian
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon, Korea
| | - Eunji Cho
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Youn Soo Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Sunghoe Chang
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun Mu Shin
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Republic of Korea
| | - Kyeong Cheon Jung
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Hoon Kim
- Department of Pathology, Asan Medical Center (AMC), Ulsan University College of Medicine, Seoul, Korea
| | - Tae Min Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yoon Kyung Jeon
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Hye Young Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Minho Shong
- Graduate School of Medical Science and Engineering, Korean Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Ji Hyung Kim
- Laboratory of Immunology and Vaccine Innovation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Doo Hyun Chung
- Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
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10
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Fu JY, Huang SJ, Wang BL, Yin JH, Chen CY, Xu JB, Chen YL, Xu S, Dong T, Zhou HN, Ma XY, Pu YP, Li H, Yang XJ, Xie LS, Wang ZJ, Luo Q, Shao YX, Ye L, Zong ZR, Wei XD, Xiao WW, Niu ST, Liu YM, Xu HP, Yu CQ, Duan SZ, Zheng LY. Lysine acetyltransferase 6A maintains CD4 + T cell response via epigenetic reprogramming of glucose metabolism in autoimmunity. Cell Metab 2024; 36:557-574.e10. [PMID: 38237601 DOI: 10.1016/j.cmet.2023.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 10/07/2023] [Accepted: 12/12/2023] [Indexed: 02/01/2024]
Abstract
Augmented CD4+ T cell response in autoimmunity is characterized by extensive metabolic reprogramming. However, the epigenetic molecule that drives the metabolic adaptation of CD4+ T cells remains largely unknown. Here, we show that lysine acetyltransferase 6A (KAT6A), an epigenetic modulator that is clinically associated with autoimmunity, orchestrates the metabolic reprogramming of glucose in CD4+ T cells. KAT6A is required for the proliferation and differentiation of proinflammatory CD4+ T cell subsets in vitro, and mice with KAT6A-deficient CD4+ T cells are less susceptible to experimental autoimmune encephalomyelitis and colitis. Mechanistically, KAT6A orchestrates the abundance of histone acetylation at the chromatin where several glycolytic genes are located, thus affecting glucose metabolic reprogramming and subsequent CD4+ T cell responses. Treatment with KAT6A small-molecule inhibitors in mouse models shows high therapeutic value for targeting KAT6A in autoimmunity. Our study provides novel insights into the epigenetic programming of immunometabolism and suggests potential therapeutic targets for patients with autoimmunity.
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Affiliation(s)
- Jia-Yao Fu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Shi-Jia Huang
- Laboratory of Oral Microbiota and Systematic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Bao-Li Wang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Jun-Hao Yin
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Chang-Yu Chen
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Jia-Bao Xu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Yan-Lin Chen
- Laboratory of Oral Microbiota and Systematic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China; Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Shuo Xu
- Laboratory of Oral Microbiota and Systematic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China; Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310000, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Ting Dong
- Laboratory of Oral Microbiota and Systematic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Hao-Nan Zhou
- College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China
| | - Xin-Yi Ma
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Yi-Ping Pu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Hui Li
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Xiu-Juan Yang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Li-Song Xie
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Zhi-Jun Wang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Qi Luo
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Yan-Xiong Shao
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Lei Ye
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Zi-Rui Zong
- College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China
| | - Xin-Di Wei
- College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China
| | - Wan-Wen Xiao
- College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China
| | - Shu-Tong Niu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Yi-Ming Liu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - He-Ping Xu
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Science, Westlake University, Hangzhou 310024, China
| | - Chuang-Qi Yu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China
| | - Sheng-Zhong Duan
- Laboratory of Oral Microbiota and Systematic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200120, China; Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou 310000, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China.
| | - Ling-Yan Zheng
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200001, China; National Center for Stomatology & National Clinical Research Center of Oral Disease, Shanghai Key Laboratory of Stomatology, Shanghai 200001, China.
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11
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Qin D, Chen Z, Deng X, Liu X, Peng L, Li G, Liu Y, Zhu X, Ding Q, Zhang X, Bao S. CD24+ decidual stromal cells: a novel heterogeneous population with impaired regulatory T cell induction and potential association with recurrent miscarriage. Fertil Steril 2024; 121:519-530. [PMID: 38036240 DOI: 10.1016/j.fertnstert.2023.11.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/21/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023]
Abstract
OBJECTIVE To explore the heterogeneity of CD24+ decidual stromal cells (DSCs) in patients with recurrent miscarriages (RMs). DESIGN We have discerned that the expression of CD24 serves to differentiate two stable and functionally distinct lineages of DSCs. The heterogeneity of CD24+ DSCs has been scrutinized, encompassing variances in stromal markers, transcriptional profiles, metabolic activity, and immune regulation. SETTING Department of Reproductive Immunology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University; Shanghai Institute of Immunity and Infection, Chinese Academy of Science. PATIENTS A total of 129 early decidual samples were obtained, comprising 36 from healthy donors and 93 from patients with RMs. Blood samples were collected before the surgical procedure. Paraffin-embedded segments from 20 decidual samples of patients with RMs were obtained. INTERVENTIONS None. MAIN OUTCOME MEASURES The flow cytometry was used to quantify the expression of CD24+ DSCs in both healthy donors and patients with RMs, although it also evaluated the cellular heterogeneity. To ascertain the transcriptomic profiles of CD24+ DSCs by reanalyzing our single-cell transcriptomic data. Additionally, to measure the metabolomic activity of CD24+ DSCs from patients with RMs, ultraperformance liquid chromatography-mass spectrometry was employed. Through the implementation of a coculture system, we unraveled the role of CD24+ DSCs in immune regulation. RESULTS Patients with RMs exhibit a notable enrichment of CD24+ DSCs, revealing a pronounced heterogeneity characterized by variations in stromal markers and transcriptional profiles. The heightened enrichment of CD24+ DSCs may play a pivotal role in triggering decidual inflammation and dysfunction in decidualization. Furthermore, CD24+ DSCs showed diverse metabolic activities and impeded the induction of naïve CD4+ T cells into regulatory T cells through the abundant secretion of 3-hydroxyisovaleric acid. Finally, our investigations have revealed that intraperitoneal administration of 3-hydroxyisovaleric acid in mouse models can elevate the risk of RM. CONCLUSION We have successfully identified a disease-associated subset of CD24+ decidual stromal cells that could potentially contribute to the development of RM through the impairment of decidual immune tolerance. Targeting these specific CD24+ DSCs might hold promising prospects for therapeutic interventions in the clinical management of RM.
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Affiliation(s)
- Dengke Qin
- Department of Reproductive Immunology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Zechuan Chen
- Shanghai Institute of Immunity and Infection, Chinese Academy of Science, Shanghai, People's Republic of China
| | - Xujing Deng
- Department of Reproductive Immunology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Xiaoshan Liu
- Shanghai Institute of Immunity and Infection, Chinese Academy of Science, Shanghai, People's Republic of China; Pasteurien College, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Liying Peng
- Department of Reproductive Immunology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Guohua Li
- Department of Reproductive Immunology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Yuan Liu
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Xiuxian Zhu
- Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Qiuhong Ding
- Department of Reproductive Immunology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Xiaoming Zhang
- Shanghai Institute of Immunity and Infection, Chinese Academy of Science, Shanghai, People's Republic of China
| | - Shihua Bao
- Department of Reproductive Immunology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China.
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12
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Almeida L, Dhillon-LaBrooy A, Sparwasser T. The evolutionary tug-of-war of macrophage metabolism during bacterial infection. Trends Endocrinol Metab 2024; 35:235-248. [PMID: 38040578 DOI: 10.1016/j.tem.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 12/03/2023]
Abstract
The function and phenotype of macrophages are intimately linked with pathogen detection. On sensing pathogen-derived signals and molecules, macrophages undergo a carefully orchestrated process of polarization to acquire pathogen-clearing properties. This phenotypic change must be adequately supported by metabolic reprogramming that is now known to support the acquisition of effector function, but also generates secondary metabolites with direct microbicidal activity. At the same time, bacteria themselves have adapted to both manipulate and take advantage of macrophage-specific metabolic adaptations. Here, we summarize the current knowledge on macrophage metabolism during infection, with a particular focus on understanding the 'arms race' between host immune cells and bacteria during immune responses.
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Affiliation(s)
- Luís Almeida
- Institute of Medical Microbiology and Hygiene, University Medical Center of Johannes Gutenberg University, Mainz 55131, Germany.
| | - Ayesha Dhillon-LaBrooy
- Institute of Medical Microbiology and Hygiene, University Medical Center of Johannes Gutenberg University, Mainz 55131, Germany
| | - Tim Sparwasser
- Institute of Medical Microbiology and Hygiene, University Medical Center of Johannes Gutenberg University, Mainz 55131, Germany.
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13
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Li D, Yao H, Ren Y, Shang J, Han X, Cao X, Song T, Zeng X. Testosterone regulates thymic remodeling by altering metabolic reprogramming in male rats. Gen Comp Endocrinol 2024; 348:114448. [PMID: 38191062 DOI: 10.1016/j.ygcen.2024.114448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/29/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024]
Abstract
The thymus is an energy-consuming organ, and its metabolism changes with atrophy. Testosterone regulates thymus remodeling (atrophy and regeneration). However, the characteristics of the energy metabolism during testosterone-mediated thymic atrophy and regeneration remain unclear. In this study, we demonstrated that testosterone ablation (implemented by immunocastration and surgical castration) induced global metabolic changes in the thymus. Kyoto Encyclopedia of Genes and Genomes pathway enrichment for differential metabolites and metabolite set enrichment analysis for total metabolites revealed that testosterone ablation affected thymic glycolysis, glutamate metabolism, and fatty acid β-oxidation. Testosterone ablation-induced thymic regeneration was accompanied by attenuated glycolysis and glutamate metabolism and changed fatty acid composition and content. Testosterone supplementation in immunocastrated and surgically castrated rats enhanced glutaminolysis, reduced the level of unsaturated fatty acids, enhanced the β-oxidation of unsaturated fatty acids in the mitochondria, boosted the tricarboxylic acid (TCA) cycle, and accelerated thymic atrophy. Overall, these results imply that metabolic reprogramming is directly related to thymic remodeling.
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Affiliation(s)
- Dong Li
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, PR China
| | - Huan Yao
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, PR China
| | - Yonghao Ren
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, PR China
| | - Jiameng Shang
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, PR China
| | - Xinfa Han
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, PR China
| | - Xiaohan Cao
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, PR China
| | - Tianzeng Song
- Institute of animal Science, Tibet Academy of Agricultural and Animal Husbandry Science, Lhasa 850009, Xizang, PR China.
| | - Xianyin Zeng
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, PR China.
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14
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Silva RCMC. Mitochondria, Autophagy and Inflammation: Interconnected in Aging. Cell Biochem Biophys 2024:10.1007/s12013-024-01231-x. [PMID: 38381268 DOI: 10.1007/s12013-024-01231-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/08/2024] [Indexed: 02/22/2024]
Abstract
In this manuscript, I discuss the direct link between abnormalities in inflammatory responses, mitochondrial metabolism and autophagy during the process of aging. It is focused on the cytosolic receptors nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing-3 (NLRP3) and cyclic GMP-AMP synthase (cGAS); myeloid-derived suppressor cells (MDSCs) expansion and their associated immunosuppressive metabolite, methyl-glyoxal, all of them negatively regulated by mitochondrial autophagy, biogenesis, metabolic pathways and its distinct metabolites.
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Affiliation(s)
- Rafael Cardoso Maciel Costa Silva
- Laboratory of Immunoreceptors and signaling, Instituto de Biofísica Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
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15
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Chang L, Li G, Jiang S, Li J, Yang J, Shah K, Zhou L, Song H, Deng L, Luo Z, Guo Y, Yan Y. 1-Pyrroline-5-carboxylate inhibit T cell glycolysis in prostate cancer microenvironment by SHP1/PKM2/LDHB axis. Cell Commun Signal 2024; 22:101. [PMID: 38326896 PMCID: PMC10851605 DOI: 10.1186/s12964-024-01493-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 01/20/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND Our previous studies demonstrated that 1-Pyrroline-5-carboxylate (P5C) released by prostate cancer cells inhibits T cell proliferation and function by increasing SHP1 expression. We designed this study to further explore the influence of P5C on T cell metabolism, and produced an antibody for targeting P5C to restore the functions of T cells. METHOD We co-immunoprecipated SHP1 from T cells and analyzed the proteins that were bound to it using liquid chromatography mass spectrometry (LC/MS-MS). The influence of P5C on T cells metabolism was also detected by LC/MS-MS. Seahorse XF96 analyzer was further used to identify the effect of P5C on T cells glycolysis. We subsequently designed and produced an antibody for targeting P5C by monoclonal technique and verified its effectiveness to restore the function of T cells in vitro and in vivo. RESULT PKM2 and LDHB bind SHP1 in T cells, and P5C could increase the levels of p-PKM2 while having no effect on the levels of PKM2 and LDHB. We further found that P5C influences T cell energy metabolism and carbohydrate metabolism. P5C also inhibits the activity of PKM2 and decreases the content of intracellular lactic acid while increasing the activity of LDH. Using seahorse XF96 analyzer, we confirmed that P5C remarkably inhibits glycolysis in T cells. We produced an antibody for targeting P5C by monoclonal technique and verified that the antibody could oppose the influence of P5C to restore the process of glycolysis and function in T cells. Meanwhile, the antibody also inhibits the growth of prostate tumors in an animal model. CONCLUSION Our study revealed that P5C inhibits the process of glycolysis in T cells by targeting SHP1/PKM2/LDHB complexes. Moreover, it is important that the antibody for targeting P5C could restore the function of T cells and inhibit the growth of prostate tumors.
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Affiliation(s)
- Lei Chang
- Department of Urology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China.
| | - Guohao Li
- Department of Urology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Shan Jiang
- Department of Clinical Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jie Li
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jin Yang
- Institute of Infection and Immunity, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Kavita Shah
- Department of Chemistry and Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Le Zhou
- Department of Clinical Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Hanrui Song
- First Clinical College of College of Medicine and Nursing, Hubei University of Medicine, Shiyan, China
| | - Leyuan Deng
- First Clinical College of College of Medicine and Nursing, Hubei University of Medicine, Shiyan, China
| | - Zhiguo Luo
- Department of Clinical Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yonglian Guo
- Department of Urology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Yutao Yan
- Department of Clinical Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, China.
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16
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Wu Y, Pu X, Wang X, Xu M. Reprogramming of lipid metabolism in the tumor microenvironment: a strategy for tumor immunotherapy. Lipids Health Dis 2024; 23:35. [PMID: 38302980 PMCID: PMC10832245 DOI: 10.1186/s12944-024-02024-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 01/18/2024] [Indexed: 02/03/2024] Open
Abstract
Lipid metabolism in cancer cells has garnered increasing attention in recent decades. Cancer cells thrive in hypoxic conditions, nutrient deficiency, and oxidative stress and cannot be separated from alterations in lipid metabolism. Therefore, cancer cells exhibit increased lipid metabolism, lipid uptake, lipogenesis and storage to adapt to a progressively challenging environment, which contribute to their rapid growth. Lipids aid cancer cell activation. Cancer cells absorb lipids with the help of transporter and translocase proteins to obtain energy. Abnormal levels of a series of lipid synthases contribute to the over-accumulation of lipids in the tumor microenvironment (TME). Lipid reprogramming plays an essential role in the TME. Lipids are closely linked to several immune cells and their phenotypic transformation. The reprogramming of tumor lipid metabolism further promotes immunosuppression, which leads to immune escape. This event significantly affects the progression, treatment, recurrence, and metastasis of cancer. Therefore, the present review describes alterations in the lipid metabolism of immune cells in the TME and examines the connection between lipid metabolism and immunotherapy.
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Affiliation(s)
- Yuting Wu
- Department of Gastroenterology, Jiangsu University Cancer Institute, Affiliated Hospital of Jiangsu University, 438 Jiefang Road, Jingkou, Zhenjiang, Jiangsu, 212001, P. R. China
- Digestive Disease Research Institute of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - Xi Pu
- Department of Gastroenterology, Jiangsu University Cancer Institute, Affiliated Hospital of Jiangsu University, 438 Jiefang Road, Jingkou, Zhenjiang, Jiangsu, 212001, P. R. China
- Digestive Disease Research Institute of Jiangsu University, Zhenjiang, 212001, Jiangsu, China
| | - Xu Wang
- Department of Radiation Oncology, Institute of Oncology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu, China.
- Department of Radiation Oncology, Jiangsu University Cancer Institute, Affiliated Hospital of Jiangsu University, 438 Jiefang Road, Jingkou, Zhenjiang, Jiangsu, 212001, P. R. China.
| | - Min Xu
- Department of Gastroenterology, Jiangsu University Cancer Institute, Affiliated Hospital of Jiangsu University, 438 Jiefang Road, Jingkou, Zhenjiang, Jiangsu, 212001, P. R. China.
- Digestive Disease Research Institute of Jiangsu University, Zhenjiang, 212001, Jiangsu, China.
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17
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Xiao Y, Yang Y, Xiong H, Dong G. The implications of FASN in immune cell biology and related diseases. Cell Death Dis 2024; 15:88. [PMID: 38272906 PMCID: PMC10810964 DOI: 10.1038/s41419-024-06463-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 01/05/2024] [Accepted: 01/10/2024] [Indexed: 01/27/2024]
Abstract
Fatty acid metabolism, particularly fatty acid synthesis, is a very important cellular physiological process in which nutrients are used for energy storage and biofilm synthesis. As a key enzyme in the fatty acid metabolism, fatty acid synthase (FASN) is receiving increasing attention. Although previous studies on FASN have mainly focused on various malignancies, many studies have recently reported that FASN regulates the survival, differentiation, and function of various immune cells, and subsequently participates in the occurrence and development of immune-related diseases. However, few studies to date systematically summarized the function and molecular mechanisms of FASN in immune cell biology and related diseases. In this review, we discuss the regulatory effect of FASN on immune cells, and the progress in research on the implications of FASN in immune-related diseases. Understanding the function of FASN in immune cell biology and related diseases can offer insights into novel treatment strategies for clinical diseases.
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Affiliation(s)
- Yucai Xiao
- Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China
- Jining Key Laboratory of Immunology, Jining Medical University, Jining, 272067, Shandong, China
| | - Yonghong Yang
- Medical Research Center, Affiliated Hospital of Jining Medical University, Jining, 272007, Shandong, China
| | - Huabao Xiong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China.
- Jining Key Laboratory of Immunology, Jining Medical University, Jining, 272067, Shandong, China.
| | - Guanjun Dong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, 272067, Shandong, China.
- Jining Key Laboratory of Immunology, Jining Medical University, Jining, 272067, Shandong, China.
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18
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Alvarez S, Vanasco V, Adán Areán JS, Magnani N, Evelson P. Mitochondrial Mechanisms in Immunity and Inflammatory Conditions: Beyond Energy Management. Antioxid Redox Signal 2024. [PMID: 38062738 DOI: 10.1089/ars.2023.0367] [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] [Indexed: 01/25/2024]
Abstract
Significance: The growing importance of mitochondria in the immune response and inflammation is multifaceted. Unraveling the different mechanisms by which mitochondria have a relevant role in the inflammatory response beyond the energy management of the process is necessary for improving our understanding of the host immune defense and the pathogenesis of various inflammatory diseases and syndromes. Critical Issues: Mitochondria are relevant in the immune response at different levels, including releasing activation molecules, changing its structure and function to accompany the immune response, and serving as a structural base for activating intermediates as NLRP3 inflammasome. In this scientific journey of dissecting mitochondrial mechanisms, new questions and interesting aspects arise, such as the involvement of mitochondrial-derived vesicles in the immune response with the putative role of preventing uncontrolled situations. Recent Advances: Researchers are continuously rethinking the role of mitochondria in acute and chronic inflammation and related disorders. As such, mitochondria have important roles as centrally positioned signaling hubs in regulating inflammatory and immune responses. In this review, we present the current understanding of mitochondrial mechanisms involved, beyond the largely known mitochondrial dysfunction, in the onset and development of inflammatory situations. Future Directions: Mitochondria emerge as an interesting and multifaceted platform for studying and developing pharmaceutical and therapeutic approaches. There are many ongoing studies aimed to describe the effects of specific mitochondrial targeted molecules and treatments to ameliorate the consequences of exacerbated inflammatory components of pathologies and syndromes, resulting in an open area of increasing research interest.
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Affiliation(s)
- Silvia Alvarez
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Fisicoquímica, CABA, Argentina
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
| | - Virginia Vanasco
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Fisicoquímica, CABA, Argentina
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
| | - Juan Santiago Adán Areán
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Fisicoquímica, CABA, Argentina
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
| | - Natalia Magnani
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
- CONICET-Universidad de Buenos Aires, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Buenos Aires, CABA, Argentina
| | - Pablo Evelson
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
- CONICET-Universidad de Buenos Aires, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Buenos Aires, CABA, Argentina
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Huang S, Chen Y, Gong F, Chen W, Zheng Y, Zhao B, Shi W, Yang Z, Qu H, Mao E, Chen E. Septic macrophages induce T cells immunosuppression in a cell-cell contact manner with the involvement of CR3. Heliyon 2024; 10:e23266. [PMID: 38187232 PMCID: PMC10770445 DOI: 10.1016/j.heliyon.2023.e23266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 11/21/2023] [Accepted: 11/29/2023] [Indexed: 01/09/2024] Open
Abstract
Background In addition to excessive inflammation, immunosuppression has been recognized as a contributing factor to poor prognosis of sepsis. Although it has been reported that T cells can become functionally impaired during sepsis, the underlying mechanisms responsible for this phenomenon remain unclear. This study aims to elucidate the mechanisms by which macrophages induce immunosuppression in T cells. Methods In an in vivo setting, C57BL-6J mice were subjected to cecal ligation and puncture (CLP) with or without depletion of macrophages, and the functions of T cells were assessed. In vitro experiments involved direct co-culture or separate culture of T cells and septic macrophages using a transwell system, followed by analysis of T cell immunity. Additionally, a siRNA targeting CD18 on macrophages was utilized to investigate the role of complement receptor 3 (CR3). Results Both macrophages and T cells exhibited immunosuppression during sepsis. In the in vivo experiments, the absence of macrophages partially alleviated T cell immunosuppression, as evidenced by restored vitality, increased production of TNF-α and IFN-γ, elevated CD8+ T cell levels, and decreased CD25+ T cell levels. In the in vitro experiments, direct co-culture of T cells with septic macrophages resulted in diminished T cell immunity, which was improved when T cells and macrophages were separated by a chamber wall. The expression of CR3 (CD11b/CD18) was upregulated on septic macrophages, and silencing of CD18 led to decreased TNF-α production by T cells, reduced CD4+ T cell numbers, and increased CD25+ T cell numbers. Conclusion In sepsis, macrophages induce immunosuppression in T cells through direct cell-cell contact, with the involvement of CR3.
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Affiliation(s)
- Shunwei Huang
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Ying Chen
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Fangchen Gong
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Weiwei Chen
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Yanjun Zheng
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Bing Zhao
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Wen Shi
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Zhitao Yang
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Hongping Qu
- Department of Intensive Care, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Enqiang Mao
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
| | - Erzhen Chen
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai, China
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20
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Miallot R, Millet V, Roger A, Fenouil R, Tardivel C, Martin JC, Tranchida F, Shintu L, Berchard P, Sousa Lanza J, Malissen B, Henri S, Ugolini S, Dutour A, Finetti P, Bertucci F, Blay JY, Galland F, Naquet P. The coenzyme A precursor pantethine enhances antitumor immunity in sarcoma. Life Sci Alliance 2023; 6:e202302200. [PMID: 37833072 PMCID: PMC10583838 DOI: 10.26508/lsa.202302200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
The tumor microenvironment is a dynamic network of stromal, cancer, and immune cells that interact and compete for resources. We have previously identified the Vanin1 pathway as a tumor suppressor of sarcoma development via vitamin B5 and coenzyme A regeneration. Using an aggressive sarcoma cell line that lacks Vnn1 expression, we showed that the administration of pantethine, a vitamin B5 precursor, attenuates tumor growth in immunocompetent but not nude mice. Pantethine boosts antitumor immunity, including the polarization of myeloid and dendritic cells towards enhanced IFNγ-driven antigen presentation pathways and improved the development of hypermetabolic effector CD8+ T cells endowed with potential antitumor activity. At later stages of treatment, the effect of pantethine was limited by the development of immune cell exhaustion. Nevertheless, its activity was comparable with that of anti-PD1 treatment in sensitive tumors. In humans, VNN1 expression correlates with improved survival and immune cell infiltration in soft-tissue sarcomas, but not in osteosarcomas. Pantethine could be a potential therapeutic immunoadjuvant for the development of antitumor immunity.
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Affiliation(s)
- Richard Miallot
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
| | - Virginie Millet
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
| | - Anais Roger
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
| | - Romain Fenouil
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
| | | | | | | | - Laetitia Shintu
- CNRS, Centrale Marseille, ISM2, Aix Marseille Université, Marseille, France
| | - Paul Berchard
- INSERM 1052, CNRS 5286, Cancer Research Center of Lyon (CRCL), Childhood Cancers and Cell Death Laboratory, Lyon, France
| | - Juliane Sousa Lanza
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
| | - Bernard Malissen
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
- INSERM, CNRS, Centre D'Immunophénomique (CIPHE), Aix Marseille Université, Marseille, France
| | - Sandrine Henri
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
| | - Sophie Ugolini
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
| | - Aurélie Dutour
- INSERM 1052, CNRS 5286, Cancer Research Center of Lyon (CRCL), Childhood Cancers and Cell Death Laboratory, Lyon, France
| | - Pascal Finetti
- INSERM, CNRS, Centre de Recherche en Cancérologie de Marseille (CRCM), Institut Paoli-Calmettes (IPC), Laboratory of Predictive Oncology, Aix-Marseille Université, Marseille, France
| | - François Bertucci
- INSERM, CNRS, Centre de Recherche en Cancérologie de Marseille (CRCM), Institut Paoli-Calmettes (IPC), Laboratory of Predictive Oncology, Aix-Marseille Université, Marseille, France
- Institut Paoli-Calmettes, Department of Medical Oncology, Marseille, France
| | - Jean-Yves Blay
- INSERM 1052, CNRS 5286, Cancer Research Center of Lyon (CRCL), Childhood Cancers and Cell Death Laboratory, Lyon, France
- UNICANCER Centre Léon Bérard, Department of Medicine, Université Lyon I, Lyon, France
| | - Franck Galland
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
| | - Philippe Naquet
- https://ror.org/03vyjkj45 INSERM, CNRS, Centre D'Immunologie de Marseille-Luminy, Aix-Marseille Université, Marseille, France
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21
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Li L, Li W, Ma Q, Lin Y, Cui Z. Exploring the causal correlations between 486 serum metabolites and systemic lupus erythematosus: a bidirectional Mendelian randomization study. Front Mol Biosci 2023; 10:1281987. [PMID: 38028539 PMCID: PMC10672030 DOI: 10.3389/fmolb.2023.1281987] [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: 09/08/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
Objective: The observational association between circulating metabolites and systemic lupus erythematosus (SLE) has been well documented. However, whether the association is causal remains unclear. In this study, bidirectional Mendelian randomization (MR) was introduced to analyse the causal relationships and possible mechanisms. Methods: We conducted a two-sample bidirectional MR study. A genome-wide association study (GWAS) with 7,824 participants provided data on 486 human blood metabolites. Outcome information was obtained from a large-scale GWAS summary, which contained 5,201 single nucleotide polymorphisms (SNPs) cases and 9,066 control cases of Europeans and yielded a total of 7,071,163 SNPs. The inverse variance weighted (IVW) model was recruited as the primary two-sample MR analysis approach, followed by sensitivity analyses such as the heterogeneity test, horizontal pleiotropy test, leave-one-out analysis, and linkage disequilibrium score (LDSC) regression. Results: In this study, we discovered that 24 metabolites belonging to the lipid, carbohydrate, xenobiotic and amino acid superpathways may increase the risk of SLE occurrence (p < 0.05). In addition, the metabolic disorders of 51 metabolites belonging to the amino acid, energy, xenobiotics, peptide and lipid superpathways were affected by SLE (p < 0.05). Palmitoleate belonging to the lipid superpathway and isobutyrylcarnitine and phenol sulfate belonging to the amino acid superpathway were factors with two-way causation. The metabolic enrichment pathway of bile acid biosynthesis was significant in the forward MR analysis (p = 0.0435). Linolenic acid and linoleic acid metabolism (p = 0.0260), betaine metabolism (p = 0.0314), and glycerolipid metabolism (p = 0.0435) were the significant metabolically enriched pathways in the reverse MR analysis. Conclusion: The levels of some specific metabolites may either contribute to the immune response inducing SLE, or they may be intermediates in the development and progression of SLE. These metabolites can be used as auxiliary diagnostic tools for SLE and for the evaluation of disease progression and therapeutic effects.
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Affiliation(s)
- Li Li
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Wenyu Li
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qing Ma
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Youkun Lin
- Department of Dermatology and Venereology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhezhe Cui
- Guangxi Key Laboratory of Major Infectious Disease Prevention and Control and Biosafety Emergency Response, Guangxi Centre for Disease Control and Prevention, Nanning, China
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22
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Yue S, Wang Q, Zhang J, Hu Q, Liu C. Understanding cervical cancer at single-cell resolution. Cancer Lett 2023; 576:216408. [PMID: 37769795 DOI: 10.1016/j.canlet.2023.216408] [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: 05/24/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
Cervical cancer is now the fourth most prevalent malignancy in women worldwide, representing a tremendous burden of cancer. The heterogeneity of complex tumor ecosystem impacts tumorigenesis, malignant progression, and response to treatment; thus, a thorough understanding of the tumor ecosystem is vital for enhancing the prognosis of patients with cervical cancer. The rapid development and widespread use of single-cell sequencing have generated a new paradigm of cancer research, providing a comprehensive and in-depth understanding of cancers. In this review, we give an overview of the recent advances made by leveraging single-cell sequencing studies in the dissection of cervical cancer ecosystem heterogeneity. We highlight the evolution of the cervical cancer ecosystem during tumor initiation, progression, and treatment. High-resolution dissection of cervical cancer at the single-cell level has the potential to drive the development of targeted therapies and enable the realization of personalized medicine.
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Affiliation(s)
- Shengqin Yue
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Qian Wang
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jiajun Zhang
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Qinyong Hu
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Chao Liu
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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23
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Wang C, Cheng Y, Li B, Qiu X, Hu H, Zhang X, Lu Z, Zheng F. Transcriptional characteristics and functional validation of three monocyte subsets during aging. Immun Ageing 2023; 20:50. [PMID: 37759225 PMCID: PMC10523626 DOI: 10.1186/s12979-023-00377-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Age-associated changes in immunity are inextricably linked to chronic inflammation and age-related diseases, the impact of aging on monocyte subsets is poorly understood. METHODS Flow cytometry was applied to distinguish three monocyte subsets between 120 young and 103 aged individuals. We then analyzed the expression profiles of three monocyte subsets from 9 young and 9 older donors and CD14+ monocytes from 1202 individuals between 44 and 83 years old. Flow cytometry was used to measure β-galactosidase activities, ROS levels, mitochondrial contents, mitochondrial membrane potentials (MMPs) and intracellular IL-6 levels in three monocyte subsets of young and elderly individuals, and plasma IL-6 levels were detected by electrochemiluminescence immunoassay. Mitochondrial stress and glycolytic rate of CD14+ monocytes from young and aged individuals were measured by Seahorse XFe24 Analyzer. RESULTS Compared with young individuals, the percentage of classical subset in aged persons significantly decreased, while the proportion of nonclassical subset increased. Age-related differential genes were obviously enriched in cellular senescence, ROS, oxidative phosphorylation, mitochondrial respiratory chain, IL-6 and ribosome-related pathways. Compared with young individuals, the β-galactosidase activities, ROS contents, intracellular IL-6 levels of three monocyte subsets, and plasma IL-6 levels in aged individuals were significantly elevated, while the MMPs apparently declined with age and the mitochondrial contents were only increased in intermediate and nonclassical subsets. CD14+ monocytes from elderly adults had conspicuously lower basal and spare respiratory capacity and higher basal glycolysis than those from young individuals. CONCLUSIONS During aging, monocytes exhibited senescence-associated secretory phenotype, mitochondrial dysfunction, decreased oxidative phosphorylation and increased glycolysis and the nonclassical subset displayed the clearest features of aging. Our study comprehensively investigated age-related transcriptional alterations of three monocyte subsets and identified the pivotal pathways of monocyte senescence, which may have significant implications for tactics to alleviate age-related conditions.
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Affiliation(s)
- Chen Wang
- Center for Gene Diagnosis, Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Center of Clinical Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Yating Cheng
- Center for Gene Diagnosis, Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Boyu Li
- Center for Gene Diagnosis, Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xueping Qiu
- Center for Gene Diagnosis, Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Hui Hu
- Center for Gene Diagnosis, Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xiaokang Zhang
- Center for Gene Diagnosis, Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Zhibing Lu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
| | - Fang Zheng
- Center for Gene Diagnosis, Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
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24
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Lee H, Jeon JH, Kim ES. Mitochondrial dysfunctions in T cells: focus on inflammatory bowel disease. Front Immunol 2023; 14:1219422. [PMID: 37809060 PMCID: PMC10556505 DOI: 10.3389/fimmu.2023.1219422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/06/2023] [Indexed: 10/10/2023] Open
Abstract
Mitochondria has emerged as a critical ruler of metabolic reprogramming in immune responses and inflammation. In the context of colitogenic T cells and IBD, there has been increasing research interest in the metabolic pathways of glycolysis, pyruvate oxidation, and glutaminolysis. These pathways have been shown to play a crucial role in the metabolic reprogramming of colitogenic T cells, leading to increased inflammatory cytokine production and tissue damage. In addition to metabolic reprogramming, mitochondrial dysfunction has also been implicated in the pathogenesis of IBD. Studies have shown that colitogenic T cells exhibit impaired mitochondrial respiration, elevated levels of mROS, alterations in calcium homeostasis, impaired mitochondrial biogenesis, and aberrant mitochondria-associated membrane formation. Here, we discuss our current knowledge of the metabolic reprogramming and mitochondrial dysfunctions in colitogenic T cells, as well as the potential therapeutic applications for treating IBD with evidence from animal experiments.
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Affiliation(s)
- Hoyul Lee
- Research Institute of Aging and Metabolism, Kyungpook National University, Daegu, Republic of Korea
| | - Jae-Han Jeon
- Research Institute of Aging and Metabolism, Kyungpook National University, Daegu, Republic of Korea
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
| | - Eun Soo Kim
- Division of Gastroenterology, Department of Internal Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Republic of Korea
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25
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Khalil SM, Eltaramsy A, Hegazi MM, Mohamed TM, Alwasel S, Salem ML. Time-dependent changes in the glycolytic pathway in activated T cells are independent of tumor burden or anti-cancer chemotherapy. Int Immunopharmacol 2023; 122:110622. [PMID: 37451014 DOI: 10.1016/j.intimp.2023.110622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/27/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023]
Abstract
Although activated adoptive T cells therapy (ATC) is an effective approach for cancer treatment, it is not clear how modulation of T cell activation impacts their biochemical signature which significantly impacts the cell function. This study is aimed to investigate the impact of polyclonal activation on the metabolic signature of T cells from tumor-bearing mice under different settings of treatment with chemotherapy. Thirty female Swiss albino mice were divided into 5 groups (n = 6/each), Gp1(PBS), groups Gp2 were inoculated intraperitoneal (i.p) with 1 × 106 cells/mouse Ehrlich ascites carcinoma (EAC), Gp3-Gp5 were treated with cisplatin (20 mg/mice) which were represented as EAC/CIS/1wk Or EAC/CIS/2wk 3 times every other day. Splenocytes were cultured in or presence of concanavalin-A (Con-A) and IL-2 for 24 h or 72 h, then cells were harvested, and processed to determine the enzyme activities of hexokinase (HK), phosphofructokinase (PFK), lactate dehydrogenase (LDH) and glucose 6 phosphate dehydrogenase(G6PD) enzymes. The results showed that before culture, T cells harvested from EAC/PBS/1wk of mice or inoculated with EAC/CIS/1wk showed higher activity in HK, PFK, LDH, and G6PH as compared to naive T cells. After 24, and 72 h of culture and activation, the enzyme activities in T cells harvested from EAC/CIS/2wk mice or EAC/CIS/3wk mice decreased compared with their control. The late stage of the tumor without chemotherapy gives a low glycolic rate. In late activation, naive and early stages of the tumor with chemotherapy can give high glycolic metabolism. These results show great significance as an application of adoptive T-cell therapy.
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Affiliation(s)
- Sohaila M Khalil
- Immunology and Biotechnology Division, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt; Center of Excellence in Cancer Research, New Tanta University Teaching Hospital, Tanta University, Egypt.
| | - Asmaa Eltaramsy
- Physiology Division, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Mona M Hegazi
- Physiology Division, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Tarek M Mohamed
- Biochemistry Division, Department of Chemistry, Faculty of Science, Tanta University, Egypt
| | - Saleh Alwasel
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed L Salem
- Immunology and Biotechnology Division, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt; Center of Excellence in Cancer Research, New Tanta University Teaching Hospital, Tanta University, Egypt.
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Kao YS, Mamareli P, Dhillon-LaBrooy A, Stüve P, Godoy GJ, Velasquez LN, Raker VK, Weidenthaler-Barth B, Boukhallouk F, Rampoldi F, Berod L, Sparwasser T. Targeting ACC1 in T cells ameliorates psoriatic skin inflammation. J Mol Med (Berl) 2023; 101:1153-1166. [PMID: 37594540 PMCID: PMC10482807 DOI: 10.1007/s00109-023-02349-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 06/14/2023] [Accepted: 07/03/2023] [Indexed: 08/19/2023]
Abstract
Psoriasis is a chronic inflammatory skin disease driven by the IL-23/IL-17 axis. It results from excessive activation of effector T cells, including T helper (Th) and cytotoxic T (Tc) cells, and is associated with dysfunctional regulatory T cells (Tregs). Acetyl-CoA carboxylase 1 (ACC1), a rate-limiting enzyme of fatty acid synthesis (FAS), directs cell fate decisions between Th17 and Tregs and thus could be a promising therapeutic target for psoriasis treatment. Here, we demonstrate that targeting ACC1 in T cells by genetic ablation ameliorates skin inflammation in an experimental model of psoriasis by limiting Th17, Tc17, Th1, and Tc1 cells in skin lesions and increasing the frequency of effector Tregs in skin-draining lymph nodes (LNs). KEY MESSAGES : ACC1 deficiency in T cells ameliorates psoriatic skin inflammation in mice. ACC1 deficiency in T cells reduces IL-17A-producing Th17/Tc17/dysfunctional Treg populations in psoriatic lesions. ACC1 deficiency in T cells restrains IFN-γ-producing Th1/Tc1 populations in psoriatic skin lesions and skin-draining LNs. ACC1 deficiency promotes activated CD44+CD25+ Tregs and effector CD62L-CD44+ Tregs under homeostasis and psoriatic conditions.
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Affiliation(s)
- Yu-San Kao
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Panagiota Mamareli
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Ayesha Dhillon-LaBrooy
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Philipp Stüve
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Leibniz Institute for Immunotherapy, University Regensburg, 93053, Regensburg, Germany
- Chair for Immunology, University Regensburg, 93053, Regensburg, Germany
| | - Gloria Janet Godoy
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Lis Noelia Velasquez
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Verena Katharina Raker
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Beate Weidenthaler-Barth
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Fatima Boukhallouk
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Francesca Rampoldi
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Luciana Berod
- Institute of Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Tim Sparwasser
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.
- Research Center for Immunotherapy (FZI), University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany.
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Yang X, Bie X, Liu H, Shi X, Zhang D, Zhao D, Hao Y, Yang J, Yan W, Chen G, Chen L, Zhu Z, Yang F, Ma X, Liu X, Zheng H, Zhang K. Metabolomic analysis of pig spleen reveals African swine fever virus infection increased acylcarnitine levels to facilitate viral replication. J Virol 2023; 97:e0058623. [PMID: 37582206 PMCID: PMC10506482 DOI: 10.1128/jvi.00586-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/12/2023] [Indexed: 08/17/2023] Open
Abstract
African swine fever (ASF) is a devastating disease caused by the African swine fever virus (ASFV) that adversely affects the pig industry. The spleen is the main target organ of ASFV; however, the function of metabolites in the spleen during ASFV infection is yet to be investigated. To define the metabolic changes in the spleen after ASFV infection, untargeted and targeted metabolomics analyses of spleens from ASFV-infected pigs were conducted. Untargeted metabolomics analysis revealed 540 metabolites with significant differential levels. Kyoto Encyclopedia of Genes and Genomes pathway analysis showed that these metabolites were mainly enriched in metabolic pathways, including nucleotide metabolism, purine metabolism, arginine biosynthesis, and neuroactive ligand-receptor interaction. Moreover, 134 of 540 metabolites quantified by targeted metabolomics analysis had differential levels and were enriched in metabolic pathways such as the biosynthesis of cofactors, ABC transporters, and biosynthesis of amino acids. Furthermore, coalition analysis of untargeted and targeted metabolomics data revealed that the levels of acylcarnitines, which are intermediates of fatty acid β-oxidation, were significantly increased in ASFV-infected spleens compared with those in the uninfected spleens. Moreover, inhibiting fatty acid β-oxidation significantly reduced ASFV replication, indicating that fatty acid β-oxidation is essential for this process. To our knowledge, this is the first report presenting the metabolite profiles of ASFV-infected pigs. This study revealed a new mechanism of ASFV-mediated regulation of host metabolism. These findings provide new insights into the pathogenic mechanisms of ASFV, which will benefit the development of target drugs for ASFV replication. IMPORTANCE African swine fever virus, the only member of the Asfarviridae family, relies on hijacking host metabolism to meet the demand for self-replication. However, the change in host metabolism after African swine fever virus (ASFV) infection remains unknown. Here, we analyzed the metabolic changes in the pig spleen after ASFV infection for the first time. ASFV infection increased the levels of acylcarnitines. Inhibition of the production and metabolism of acylcarnitines inhibited ASFV replication. Acylcarnitines are the vital intermediates of fatty acid β-oxidation. This study highlights the critical role of fatty acid β-oxidation in ASFV infection, which may help identify target drugs to control African swine fever disease.
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Affiliation(s)
- Xing Yang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xintian Bie
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Huanan Liu
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xijuan Shi
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Dajun Zhang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - DengShuai Zhao
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Yu Hao
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Jinke Yang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Wenqian Yan
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Guohui Chen
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Lingling Chen
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Zixiang Zhu
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Fan Yang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xusheng Ma
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xiangtao Liu
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Haixue Zheng
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Keshan Zhang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
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Luo D, Li L, Wu Y, Yang Y, Ye Y, Hu J, Gao Y, Zeng N, Fei X, Li N, Jiang L. Mitochondria-related genes and metabolic profiles of innate and adaptive immune cells in primary Sjögren's syndrome. Front Immunol 2023; 14:1156774. [PMID: 37497211 PMCID: PMC10366690 DOI: 10.3389/fimmu.2023.1156774] [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: 02/01/2023] [Accepted: 06/26/2023] [Indexed: 07/28/2023] Open
Abstract
Background Primary Sjogren's syndrome (pSS) is a prototypical systemic autoimmune disease characterised by lymphocyte infiltration and immune-complex deposition in multiple organs. The specific distribution of immune cell populations and their relationship with mitochondria remain unknown. Methods Histological analysis was performed to assess the specific distribution of innate and adaptive immune cell populations in labial salivary gland (LSG) samples from 30 patients with pSS and 13 patients with non-pSS. The ultrastructural morphometric features of mitochondria within immune cells were observed under the transmission electron microscope (TEM). RNA sequencing was performed on LSG samples from 40 patients with pSS and 7 non-pSS patients. The Single-sample Gene Set Enrichment Analysis (ssGSEA), ESTIMATE, and CIBERSORT algorithms and Pearson correlation coefficients were used to examine the relationship between mitochondria-related genes and immune infiltration. Weighted Gene Co-expression Network Analysis (WGCNA) was used to identify the mitochondria-specific genes and the related pathways based on the immune cell types. Results HE staining revealed a massive infiltration of plasma cells with abundant immunoglobulin protein distributed around phenotypically normal-appearing acinar and ductal tissues of patients with pSS. Immunohistochemical analyses revealed that innate immune cells (macrophages, eosinophils and NK cells) were distributed throughout the glandular tissue. Dominant adaptive immune cell infiltration composed of B cells, CD4+T cells and CD8+ T cells or ectopic lymphoid follicle-like structures were observed in the LSGs of patients with pSS. TEM validated the swelling of mitochondria with disorganised cristae in some lymphocytes that had invaded the glandular tissue. Subsequently, bioinformatic analysis revealed that innate and adaptive immune cells were associated with different mitochondrial metabolism pathways. Mitochondrial electron transport and respiratory chain complexes in the glandular microenvironment were positively correlated with innate immune cells, whereas amino acid and nucleic acid metabolism were negatively correlated with adaptive immune cells. In addition, mitochondrial biogenesis and mitochondrial apoptosis in the glandular microenvironment were closely associated with adaptive immune cells. Conclusion Innate and adaptive immune cells have distinct distribution profiles in the salivary gland tissues of patients with pSS and are associated with different mitochondrial metabolic pathways, which may contribute to disease progression.
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Affiliation(s)
- Danyang Luo
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Li
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yicheng Wu
- Core Facility of Basic Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Yang
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Yulin Ye
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Jiawei Hu
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Yiming Gao
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Naiyan Zeng
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaochun Fei
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ning Li
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Liting Jiang
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
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Zeng L, Liang L, Fang X, Xiang S, Dai C, Zheng T, Li T, Feng Z. Glycolysis induces Th2 cell infiltration and significantly affects prognosis and immunotherapy response to lung adenocarcinoma. Funct Integr Genomics 2023; 23:221. [PMID: 37400733 DOI: 10.1007/s10142-023-01155-4] [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: 05/05/2023] [Revised: 06/22/2023] [Accepted: 06/25/2023] [Indexed: 07/05/2023]
Abstract
Glycolysis has a major role in cancer progression and can affect the tumor immune microenvironment, while its specific role in lung adenocarcinoma (LUAD) remains poorly studied. We obtained publicly available data from The Cancer Genome Atlas and Gene Expression Omnibus databases and used R software to analyze the specific role of glycolysis in LUAD. The Single Sample Gene Set Enrichment Analysis (ssGSEA) indicated a correlation between glycolysis and unfavorable clinical outcome, as well as a repression effect on the immunotherapy response of LUAD patients. Pathway enrichment analysis revealed a significant enrichment of MYC targets, epithelial-mesenchymal transition (EMT), hypoxia, G2M checkpoint, and mTORC1 signaling pathways in patients with higher activity of glycolysis. Immune infiltration analysis showed a higher infiltration of M0 and M1 macrophages in patients with elevated activity of glycolysis. Moreover, we developed a prognosis model based on six glycolysis-related genes, including DLGAP5, TOP2A, KIF20A, OIP5, HJURP, and ANLN. Both the training and validation cohorts demonstrated the high efficiency of prognostic prediction in this model, which identified that patients with high risk may have a poorer prognosis and lower sensitivity to immunotherapy. Additionally, we also found that Th2 cell infiltration may predict poorer survival and resistance to immunotherapy. The study indicated that glycolysis is significantly associated with poor prognosis in patients with LUAD and immunotherapy resistance, which might be partly dependent on the Th2 cell infiltration. Additionally, the signature comprised of six genes related to glycolysis showed promising predictive value for LUAD prognosis.
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Affiliation(s)
- Liping Zeng
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Rd, Nanning, 530021, Guangxi Zhuang Autonomous Region, China
- College of Basic Medicine, Hunan University of Medicine, 492 Jinxi South Rd, Huaihua, 418000, China
| | - Lu Liang
- Department of Pathology, The First Affiliated Hospital of Hunan University of Medicine, Yushi RD, Huaihua, 418000, China
| | - Xianlei Fang
- College of Basic Medicine, Hunan University of Medicine, 492 Jinxi South Rd, Huaihua, 418000, China
| | - Sha Xiang
- College of Basic Medicine, Hunan University of Medicine, 492 Jinxi South Rd, Huaihua, 418000, China
| | - Chenglong Dai
- Department of Physical Diagnosis, The First Affiliated Hospital of Hunan University of Medicine, 383 Yushi RD, Huaihua, 418000, China
| | - Tao Zheng
- Department of Radiotherapy Oncology, The No. 2 People's Hospital of Huaihua, Huaihua, 418000, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China.
| | - Zhenbo Feng
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Rd, Nanning, 530021, Guangxi Zhuang Autonomous Region, China.
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30
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Fang J, Chen W, Hou P, Liu Z, Zuo M, Liu S, Feng C, Han Y, Li P, Shi Y, Shao C. NAD + metabolism-based immunoregulation and therapeutic potential. Cell Biosci 2023; 13:81. [PMID: 37165408 PMCID: PMC10171153 DOI: 10.1186/s13578-023-01031-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/14/2023] [Indexed: 05/12/2023] Open
Abstract
Nicotinamide adenine dinucleotide (NAD+) is a critical metabolite that acts as a cofactor in energy metabolism, and serves as a cosubstrate for non-redox NAD+-dependent enzymes, including sirtuins, CD38 and poly(ADP-ribose) polymerases. NAD+ metabolism can regulate functionality attributes of innate and adaptive immune cells and contribute to inflammatory responses. Thus, the manipulation of NAD+ bioavailability can reshape the courses of immunological diseases. Here, we review the basics of NAD+ biochemistry and its roles in the immune response, and discuss current challenges and the future translational potential of NAD+ research in the development of therapeutics for inflammatory diseases, such as COVID-19.
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Affiliation(s)
- Jiankai Fang
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Wangwang Chen
- Laboratory Animal Center, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Pengbo Hou
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
- Department of Experimental Medicine and Biochemical Sciences, TOR, University of Rome Tor Vergata, Rome, Italy
| | - Zhanhong Liu
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
- Department of Experimental Medicine and Biochemical Sciences, TOR, University of Rome Tor Vergata, Rome, Italy
| | - Muqiu Zuo
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Shisong Liu
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Chao Feng
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
- Department of Experimental Medicine and Biochemical Sciences, TOR, University of Rome Tor Vergata, Rome, Italy
| | - Yuyi Han
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
- Department of Experimental Medicine and Biochemical Sciences, TOR, University of Rome Tor Vergata, Rome, Italy
| | - Peishan Li
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China.
| | - Yufang Shi
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China.
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Changshun Shao
- Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, The First Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China.
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Bertschi NL, Steck O, Luther F, Bazzini C, von Meyenn L, Schärli S, Vallone A, Felser A, Keller I, Friedli O, Freigang S, Begré N, Radonjic-Hoesli S, Lamos C, Gabutti MP, Benzaquen M, Laimer M, Simon D, Nuoffer JM, Schlapbach C. PPAR-γ regulates the effector function of human T helper 9 cells by promoting glycolysis. Nat Commun 2023; 14:2471. [PMID: 37120582 PMCID: PMC10148883 DOI: 10.1038/s41467-023-38233-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 04/17/2023] [Indexed: 05/01/2023] Open
Abstract
T helper 9 (TH9) cells promote allergic tissue inflammation and express the type 2 cytokines, IL-9 and IL-13, as well as the transcription factor, PPAR-γ. However, the functional role of PPAR-γ in human TH9 cells remains unknown. Here, we demonstrate that PPAR-γ drives activation-induced glycolysis, which, in turn, promotes the expression of IL-9, but not IL-13, in an mTORC1-dependent manner. In vitro and ex vivo experiments show that the PPAR-γ-mTORC1-IL-9 pathway is active in TH9 cells in human skin inflammation. Additionally, we find dynamic regulation of tissue glucose levels in acute allergic skin inflammation, suggesting that in situ glucose availability is linked to distinct immunological functions in vivo. Furthermore, paracrine IL-9 induces expression of the lactate transporter, MCT1, in TH cells and promotes their aerobic glycolysis and proliferative capacity. Altogether, our findings uncover a hitherto unknown relationship between PPAR-γ-dependent glucose metabolism and pathogenic effector functions in human TH9 cells.
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Affiliation(s)
- Nicole L Bertschi
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Oliver Steck
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Fabian Luther
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Cecilia Bazzini
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Leonhard von Meyenn
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Stefanie Schärli
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Angela Vallone
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Andrea Felser
- Institute of Clinical Chemistry, University of Bern, Bern, Switzerland
| | - Irene Keller
- Interfaculty Bioinformatics Unit and Swiss Institute of Bioinformatics, University of Bern, Bern, Switzerland
| | - Olivier Friedli
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Stefan Freigang
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Nadja Begré
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Susanne Radonjic-Hoesli
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Cristina Lamos
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Max Philip Gabutti
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Michael Benzaquen
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Markus Laimer
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism (UDEM), Bern University Hospital, University of Bern, Bern, Switzerland
| | - Dagmar Simon
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Jean-Marc Nuoffer
- Institute of Clinical Chemistry, University of Bern, Bern, Switzerland
| | - Christoph Schlapbach
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
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Habibi A, Farhadian S, Shareghi B, Hashemi-Shahraki F. Structural change study of pepsin in the presence of spermidine trihydrochloride: Insights from spectroscopic to molecular dynamics methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 291:122264. [PMID: 36652806 DOI: 10.1016/j.saa.2022.122264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 12/12/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Spermidine is an aliphatic polyamine that directs a set of biological processes. This work aimed to use UV-Vis spectroscopy, fluorescence spectroscopy, thermal stability, kinetic methods, docking, and molecular dynamic simulations to examine the influence of spermidine trihydrochloride (SP) on the structure and function of pepsin. The results of the fluorescence emission spectra indicated that spermidine could quench pepsin's intrinsic emission in a static quenching process, resulting in the formation of the pepsin-spermidine complex. The results discovered that spermidine had a strong affinity to the pepsin structure because of its high binding constant. The obtained results from spectroscopy and molecular dynamic approaches showed the binding interaction between spermidine and pepsin, induced micro-environmental modifications around tryptophan residues that caused a change in the tertiary and secondary structure of the enzyme. FTIR analysis showed hypochromic effects in the spectra of amide I and II and redistribution of the helical structure. Moreover, the molecular dynamic (MD) and docking studies confirmed the experimental data. Both experimental and molecular dynamics simulation results clarified that electrostatic bond interactions were dominant forces.
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Affiliation(s)
- Atefeh Habibi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P.O. Box 115, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran
| | - Sadegh Farhadian
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P.O. Box 115, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran.
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P.O. Box 115, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran.
| | - Fatemeh Hashemi-Shahraki
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, P.O. Box 115, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran
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Liu S, Liao S, Liang L, Deng J, Zhou Y. The relationship between CD4 + T cell glycolysis and their functions. Trends Endocrinol Metab 2023; 34:345-360. [PMID: 37061430 DOI: 10.1016/j.tem.2023.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 04/17/2023]
Abstract
CD4+ T cells are effector T cells (Teffs) produced by the differentiation of initial T cells in peripheral lymphoid tissue after being attacked by antigens, and have an indispensable role in the development and activation of B cells and CD8+ T cells to regulate and assist immunity. In this review, we provide a new perspective on the relationship between CD4+ T cell glycolysis and its function. We summarize the effects of changes in the glycolysis level of CD4+ T cells on their activation, differentiation, proliferation, and survival. In addition, we emphasize that regulation of the glycolysis level of CD4+ T cells changes their inflammatory phenotypes and function. The study of immune metabolism has received more attention recently, but more work is needed to answer many open questions.
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Affiliation(s)
- Siyi Liu
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China; Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, Hunan 410011, China; Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Shan Liao
- Department of Pathology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Lin Liang
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China; Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, Hunan 410011, China; Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Jun Deng
- Department of Early Clinical Trial Center, Hunan Cancer Hospital, Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, Hunan 410013, China.
| | - Yanhong Zhou
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China; Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, Hunan 410011, China; Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China.
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Chen K, Tang L, Nong X. Artesunate targets cellular metabolism to regulate the Th17/Treg cell balance. Inflamm Res 2023; 72:1037-1050. [PMID: 37024544 DOI: 10.1007/s00011-023-01729-9] [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: 02/08/2023] [Revised: 03/26/2023] [Accepted: 03/29/2023] [Indexed: 04/08/2023] Open
Abstract
INTRODUCTION Metabolic reprogramming is one of the important mechanisms of cell differentiation, and different cells have different preferences for energy sources. During the differentiation of naive CD4 + T cells into Th17 and Treg cells, these cells show specific energy metabolism characteristics. Th17 cells depend on enhanced glycolysis, fatty acid synthesis, and glutaminolysis. In contrast, Treg cells are dependent on oxidative phosphorylation, fatty acid oxidation, and amino acid depletion. As a potent antimalarial drug, artesunate has been shown to modulate the Th17/Treg imbalance and regulate cell metabolism. METHODOLOGY Relevant literatures on ART, cellular metabolism, glycolysis, lipid metabolism, amino acid metabolism, CD4 + T cells, Th17 cells, and Treg cells published from January 1, 2010 to now were searched in PubMed database. CONCLUSION In this review, we will highlight recent advances in which artesunate can restore the Th17/Treg imbalance in disease states by altering T-cell metabolism to influence differentiation and lineage selection. Data from the current study show that few studies have focused on the effect of ART on cellular metabolism. ART can affect the metabolic characteristics of T cells (glycolysis, lipid metabolism, and amino acid metabolism) and interfere with their differentiation lineage, thereby regulating the balance of Th17/Treg and alleviating the symptoms of the disease.
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Affiliation(s)
- Kun Chen
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China
| | - Liying Tang
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China
| | - Xiaolin Nong
- College of Stomatology, Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China.
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning, 530021, Guangxi, China.
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Sha JF, Xie QM, Chen N, Song SM, Ruan Y, Zhao CC, Liu Q, Shi RH, Jiang XQ, Fei GH, Wu HM. TLR2-hif1α-mediated glycolysis contributes to pyroptosis and oxidative stress in allergic airway inflammation. Free Radic Biol Med 2023; 200:102-116. [PMID: 36907255 DOI: 10.1016/j.freeradbiomed.2023.03.007] [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: 12/18/2022] [Revised: 02/21/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
As a pattern recognition receptor which activates innate immune system, toll-like receptor 2 (TLR2) has been reportedly mediates allergic airway inflammation (AAI), yet the underlying mechanism remains elusive. Here, in a murine AAI model, TLR2-/- mice showed decreased airway inflammation, pyroptosis and oxidative stress. RNA-sequencing revealed that allergen-induced hif1 signaling pathway and glycolysis were significantly downregulated when TLR2 was deficient, which were confirmed by lung protein immunoblots. Glycolysis inhibitor 2-Deoxy-d-glucose (2-DG) inhibited allergen-induced airway inflammation, pyroptosis, oxidative stress and glycolysis in wild type (WT) mice, while hif1α stabilizer ethyl 3,4-dihydroxybenzoate (EDHB) restored theses allergen-induced changes in TLR2-/- mice, indicating TLR2-hif1α-mediated glycolysis contributes to pyroptosis and oxidative stress in AAI. Moreover, upon allergen challenge, lung macrophages were highly activated in WT mice but were less activated in TLR2-/- mice, 2-DG replicated while EDHB reversed such effect of TLR2 deficiency on lung macrophages. Likewise, both in vivo and ex vivo WT alveolar macrophages (AMs) exhibited higher TLR2/hif1α expression, glycolysis and polarization activation in response to ovalbumin (OVA), which were all inhibited in TLR2-/- AMs, suggesting AMs activation and metabolic switch are dependent on TLR2. Finally, depletion of resident AMs in TLR2-/- mice abolished while transfer of TLR2-/- resident AMs to WT mice replicated the protective effect of TLR2 deficiency on AAI when administered before allergen challenge. Collectively, we suggested that loss of TLR2-hif1α-mediated glycolysis in resident AMs ameliorates allergic airway inflammation that inhibits pyroptosis and oxidative stress, therefore the TLR2-hif1α-glycolysis axis in resident AMs may be a novel therapeutic target for AAI.
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Affiliation(s)
- 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, Anhui, 230022, PR China; Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road No.218, Hefei, Anhui, 230022, PR China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei, Anhui, 230022, PR China
| | - 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, Anhui, 230022, PR China; Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road No.218, Hefei, Anhui, 230022, PR China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei, Anhui, 230022, PR 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, Anhui, 230022, PR China; Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road No.218, Hefei, Anhui, 230022, PR China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei, Anhui, 230022, PR 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, Anhui, 230022, PR China; Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road No.218, Hefei, Anhui, 230022, PR China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei, Anhui, 230022, PR 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, Anhui, 230022, PR China; Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road No.218, Hefei, Anhui, 230022, PR China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei, Anhui, 230022, PR 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, Anhui, 230022, PR China; Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road No.218, Hefei, Anhui, 230022, PR China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei, Anhui, 230022, PR China
| | - Qian Liu
- Division of Life Sciences and Medicine, University of Science and Technology of China, Huang Shan Road 443, Hefei, Anhui, 230027, PR China
| | - Rong-Hua Shi
- Division of Life Sciences and Medicine, University of Science and Technology of China, Huang Shan Road 443, Hefei, Anhui, 230027, PR China
| | - Xu-Qin Jiang
- Division of Life Sciences and Medicine, University of Science and Technology of China, Huang Shan Road 443, Hefei, Anhui, 230027, PR China; Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of University of Science and Technology of China, Lujiang Road 17, Hefei, Anhui, 230001, PR China.
| | - Guang-He Fei
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei, Anhui, 230022, PR China; Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei, Anhui, 230022, PR 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, Anhui, 230022, PR China; Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Jixi Road No.218, Hefei, Anhui, 230022, PR China; Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, Jixi Road 218, Hefei, Anhui, 230022, PR China.
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Lee GR. Molecular Mechanisms of T Helper Cell Differentiation and Functional Specialization. Immune Netw 2023; 23:e4. [PMID: 36911803 PMCID: PMC9995992 DOI: 10.4110/in.2023.23.e4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/17/2023] [Accepted: 01/29/2023] [Indexed: 03/07/2023] Open
Abstract
Th cells, which orchestrate immune responses to various pathogens, differentiate from naïve CD4 T cells into several subsets that stimulate and regulate immune responses against various types of pathogens, as well as a variety of immune-related diseases. Decades of research have revealed that the fate decision processes are controlled by cytokines, cytokine receptor signaling, and master transcription factors that drive the differentiation programs. Since the Th1 and Th2 paradigm was proposed, many subsets have been added to the list. In this review, I will summarize these events, including the fate decision processes, subset functions, transcriptional regulation, metabolic regulation, and plasticity and heterogeneity. I will also introduce current topics of interest.
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Affiliation(s)
- Gap Ryol Lee
- Department of Life Science, Sogang University, Seoul 04107, Korea
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37
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Hu C, Zhen Y, Ma Z, Zhao L, Wu H, Shu C, Pang B, Yu J, Xu Y, Zhang X, Wang XY, Yi H. Polyamines from myeloid-derived suppressor cells promote Th17 polarization and disease progression. Mol Ther 2023; 31:569-584. [PMID: 36307990 PMCID: PMC9931554 DOI: 10.1016/j.ymthe.2022.10.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 10/12/2022] [Accepted: 10/25/2022] [Indexed: 11/11/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are a group of immature myeloid cells that play an important role in diseases. MDSCs promote Th17 differentiation and aggravate systemic lupus erythematosus (SLE) progression by producing arginase-1 to metabolize arginine. However, the metabolic regulators remain unknown. Here, we report that MDSC derivative polyamines can promote Th17 differentiation via miR-542-5p in vitro. Th17 polarization was enhanced in response to polyamine treatment or upon miR-542-5p overexpression. The TGF-β/SMAD3 pathway was shown to be involved in miR-542-5p-facilitated Th17 differentiation. Furthermore, miR-542-5p expression positively correlated with the levels of polyamine synthetases in peripheral blood mononuclear cells of patients with SLE as well as disease severity. In humanized SLE model mice, MDSC depletion decreased the levels of Th17 cells, accompanied by reduced expression of miR-542-5p and these polyamine synthetases. In addition, miR-542-5p expression positively correlated with the Th17 level and disease severity in both patients and humanized SLE mice. Together, our data reveal a novel molecular pathway by which MDSC-derived polyamine metabolism enhances Th17 differentiation and aggravates SLE.
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Affiliation(s)
- Cong Hu
- Central Laboratory, The First Hospital of Jilin University, Changchun 130021, China; Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun 130021, China; Center for Reproductive Medicine, Center for Prenatal Diagnosis, The First Hospital of Jilin University, Changchun 130021, China
| | - Yu Zhen
- Department of Dermatology, The First Hospital of Jilin University, Changchun, China
| | - Zhanchuan Ma
- Central Laboratory, The First Hospital of Jilin University, Changchun 130021, China; Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun 130021, China
| | - Li Zhao
- Bethune Institute of Epigenetic Medicine, The First Hospital, Jilin University, Changchun 130021, China
| | - Hao Wu
- Department of Nephrology, The First Hospital of Jilin University, Changchun 130021, China
| | - Chang Shu
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun 130021, China
| | - Bo Pang
- Central Laboratory, The First Hospital of Jilin University, Changchun 130021, China; Department of Cardiology, The First Hospital of Jilin University, Changchun, China
| | - Jinyu Yu
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Ying Xu
- Department of Nephrology, The First Hospital of Jilin University, Changchun 130021, China
| | - Xin Zhang
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun 130021, China
| | - Xiang-Yang Wang
- Department of Human and Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA
| | - Huanfa Yi
- Central Laboratory, The First Hospital of Jilin University, Changchun 130021, China; Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun 130021, China.
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Mahalingam SS, Jayaraman S, Bhaskaran N, Schneider E, Faddoul F, Paes da Silva A, Lederman MM, Asaad R, Adkins-Travis K, Shriver LP, Pandiyan P. Polyamine metabolism impacts T cell dysfunction in the oral mucosa of people living with HIV. Nat Commun 2023; 14:399. [PMID: 36693889 PMCID: PMC9873639 DOI: 10.1038/s41467-023-36163-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Metabolic changes in immune cells contribute to both physiological and pathophysiological outcomes of immune reactions. Here, by comparing protein expression, transcriptome, and salivary metabolome profiles of uninfected and HIV+ individuals, we found perturbations of polyamine metabolism in the oral mucosa of HIV+ patients. Mechanistic studies using an in vitro human tonsil organoid infection model revealed that HIV infection of T cells also resulted in increased polyamine synthesis, which was dependent on the activities of caspase-1, IL-1β, and ornithine decarboxylase-1. HIV-1 also led to a heightened expression of polyamine synthesis intermediates including ornithine decarboxylase-1 as well as an elevated dysfunctional regulatory T cell (TregDys)/T helper 17 (Th17) cell ratios. Blockade of caspase-1 and polyamine synthesis intermediates reversed the TregDys phenotype showing the direct role of polyamine pathway in altering T cell functions during HIV-1 infection. Lastly, oral mucosal TregDys/Th17 ratios and CD4 hyperactivation positively correlated with salivary putrescine levels, which were found to be elevated in the saliva of HIV+ patients. Thus, by revealing the role of aberrantly increased polyamine synthesis during HIV infection, our study unveils a mechanism by which chronic viral infections could drive distinct T cell effector programs and Treg dysfunction.
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Affiliation(s)
- S S Mahalingam
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - S Jayaraman
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - N Bhaskaran
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA.,Faculty of Biomedical Sciences, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - E Schneider
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - F Faddoul
- Advanced Education in General Dentistry, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - A Paes da Silva
- Department of Periodontics, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - M M Lederman
- Department of Medicine, Division of Infectious Diseases & HIV Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA.,University Hospitals Cleveland Medical Center AIDS Clinical Trials Unit, Cleveland, OH, 44106, USA
| | - R Asaad
- University Hospitals Cleveland Medical Center AIDS Clinical Trials Unit, Cleveland, OH, 44106, USA
| | - K Adkins-Travis
- Department of Chemistry, Center for Metabolomics and Isotope Tracing, Washington University, Saint Louis, MO, 63110, USA
| | - L P Shriver
- Department of Chemistry, Center for Metabolomics and Isotope Tracing, Washington University, Saint Louis, MO, 63110, USA
| | - P Pandiyan
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA. .,Department of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA. .,Center for AIDS Research, School of Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA.
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West AL, von Gerichten J, Irvine NA, Miles EA, Lillycrop KA, Calder PC, Fielding BA, Burdge GC. Fatty acid composition and metabolic partitioning of α-linolenic acid are contingent on life stage in human CD3 + T lymphocytes. Front Immunol 2022; 13:1079642. [PMID: 36582247 PMCID: PMC9792684 DOI: 10.3389/fimmu.2022.1079642] [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: 10/25/2022] [Accepted: 11/23/2022] [Indexed: 12/15/2022] Open
Abstract
Introduction Immune function changes across the life course; the fetal immune system is characterised by tolerance while that of seniors is less able to respond effectively to antigens and is more pro-inflammatory than in younger adults. Lipids are involved centrally in immune function but there is limited information about how T cell lipid metabolism changes during the life course. Methods and Results We investigated whether life stage alters fatty acid composition, lipid droplet content and α-linolenic acid (18:3ω-3) metabolism in human fetal CD3+ T lymphocytes and in CD3+ T lymphocytes from adults (median 41 years) and seniors (median 70 years). Quiescent fetal T cells had higher saturated (SFA), monounsaturated fatty acid (MUFA), and ω-6 polyunsaturated fatty acid (PUFA) contents than adults or seniors. Activation-induced changes in fatty acid composition differed between life stages. The principal metabolic fates of [13C]18:3ω-3 were constitutive hydroxyoctadecatrienoic acid synthesis and β-oxidation and carbon recycling into SFA and MUFA. These processes declined progressively across the life course. Longer chain ω-3 PUFA synthesis was a relatively minor metabolic fate of 18:3ω-3 at all life stages. Fetal and adult T lymphocytes had similar lipid droplet contents, which were lower than in T cells from seniors. Variation in the lipid droplet content of adult T cells accounted for 62% of the variation in mitogen-induced CD69 expression, but there was no significant relationship in fetal cells or lymphocytes from seniors. Discussion Together these findings show that fatty acid metabolism in human T lymphocytes changes across the life course in a manner that may facilitate the adaptation of immune function to different life stages.
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Affiliation(s)
- Annette L. West
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, Hampshire, United Kingdom
| | - Johanna von Gerichten
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, United Kingdom
| | - Nicola A. Irvine
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, Hampshire, United Kingdom
| | - Elizabeth A. Miles
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, Hampshire, United Kingdom
| | - Karen A. Lillycrop
- Centre for Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Southampton, Hampshire, United Kingdom
| | - Philip C. Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, Hampshire, United Kingdom,National Institute for Health and Care Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton National Health Service (NHS) Foundation Trust and University of Southampton, Southampton, Hampshire, United Kingdom
| | - Barbara A. Fielding
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, United Kingdom
| | - Graham C. Burdge
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, Hampshire, United Kingdom,*Correspondence: Graham C. Burdge,
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Scherlinger M, Pan W, Hisada R, Boulougoura A, Yoshida N, Vukelic M, Umeda M, Krishfield S, Tsokos MG, Tsokos GC. Phosphofructokinase P fine-tunes T regulatory cell metabolism, function, and stability in systemic autoimmunity. SCIENCE ADVANCES 2022; 8:eadc9657. [PMID: 36449620 PMCID: PMC9710877 DOI: 10.1126/sciadv.adc9657] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 10/12/2022] [Indexed: 05/21/2023]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by defective regulatory T (Treg) cells. Here, we demonstrate that a T cell-specific deletion of calcium/calmodulin-dependent protein kinase 4 (CaMK4) improves disease in B6.lpr lupus-prone mice and expands Treg cells. Mechanistically, CaMK4 phosphorylates the glycolysis rate-limiting enzyme 6-phosphofructokinase, platelet type (PFKP) and promotes aerobic glycolysis, while its end product fructose-1,6-biphosphate suppresses oxidative metabolism. In Treg cells, a CRISPR-Cas9-enabled Pfkp deletion recapitulated the metabolism of Camk4-/- Treg cells and improved their function and stability in vitro and in vivo. In SLE CD4+ T cells, PFKP enzymatic activity correlated with SLE disease activity and pharmacologic inhibition of CaMK4-normalized PFKP activity, leading to enhanced Treg cell function. In conclusion, we provide molecular insights in the defective metabolism and function of Treg cells in SLE and identify PFKP as a target to fine-tune Treg cell metabolism and thereby restore their function.
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Affiliation(s)
- Marc Scherlinger
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
- Rheumatology Department, Strasbourg University Hospital of Hautepierre, 1 Avenue Molière, 67200 Strasbourg, France
- Corresponding author. (G.C.T.); (M.S.)
| | - Wenliang Pan
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
| | - Ryo Hisada
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
| | - Afroditi Boulougoura
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
| | - Nobuya Yoshida
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
| | - Milena Vukelic
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
| | - Masataka Umeda
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
| | - Suzanne Krishfield
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
| | - Maria G. Tsokos
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
| | - George C. Tsokos
- Department of Medicine, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02115, USA
- Corresponding author. (G.C.T.); (M.S.)
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Li X, Yang Y, Zhang B, Lin X, Fu X, An Y, Zou Y, Wang JX, Wang Z, Yu T. Lactate metabolism in human health and disease. Signal Transduct Target Ther 2022; 7:305. [PMID: 36050306 PMCID: PMC9434547 DOI: 10.1038/s41392-022-01151-3] [Citation(s) in RCA: 213] [Impact Index Per Article: 106.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 07/17/2022] [Accepted: 08/09/2022] [Indexed: 12/29/2022] Open
Abstract
The current understanding of lactate extends from its origins as a byproduct of glycolysis to its role in tumor metabolism, as identified by studies on the Warburg effect. The lactate shuttle hypothesis suggests that lactate plays an important role as a bridging signaling molecule that coordinates signaling among different cells, organs and tissues. Lactylation is a posttranslational modification initially reported by Professor Yingming Zhao’s research group in 2019. Subsequent studies confirmed that lactylation is a vital component of lactate function and is involved in tumor proliferation, neural excitation, inflammation and other biological processes. An indispensable substance for various physiological cellular functions, lactate plays a regulatory role in different aspects of energy metabolism and signal transduction. Therefore, a comprehensive review and summary of lactate is presented to clarify the role of lactate in disease and to provide a reference and direction for future research. This review offers a systematic overview of lactate homeostasis and its roles in physiological and pathological processes, as well as a comprehensive overview of the effects of lactylation in various diseases, particularly inflammation and cancer.
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Affiliation(s)
- Xiaolu Li
- Center for Regenerative Medicine, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University; Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China
| | - Yanyan Yang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Bei Zhang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Xiaotong Lin
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao, 266011, China
| | - Xiuxiu Fu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China
| | - Yi An
- Department of Cardiology, The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266555, China
| | - Yulin Zou
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China
| | - Jian-Xun Wang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Zhibin Wang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China.
| | - Tao Yu
- Center for Regenerative Medicine, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University; Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China.
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Zhang C, Liu N. Noncoding RNAs in the Glycolysis of Ovarian Cancer. Front Pharmacol 2022; 13:855488. [PMID: 35431949 PMCID: PMC9005897 DOI: 10.3389/fphar.2022.855488] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 03/15/2022] [Indexed: 01/11/2023] Open
Abstract
Energy metabolism reprogramming is the characteristic feature of tumors. The tumorigenesis, metastasis, and drug resistance of ovarian cancer (OC) is dependent on energy metabolism. Even under adequate oxygen conditions, OC cells tend to convert glucose to lactate, and glycolysis can rapidly produce ATP to meet their metabolic energy needs. Non-coding RNAs (ncRNAs) interact directly with DNA, RNA, and proteins to function as an essential regulatory in gene expression and tumor pathology. Studies have shown that ncRNAs regulate the process of glycolysis by interacting with the predominant glycolysis enzyme and cellular signaling pathway, participating in tumorigenesis and progression. This review summarizes the mechanism of ncRNAs regulation in glycolysis in OC and investigates potential therapeutic targets.
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Affiliation(s)
- Chunmei Zhang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ning Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
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Tetrastigma hemsleyanum alleviates sarcoidosis through metabolomic regulation and Th17/Treg immune homeostasis. J Funct Foods 2022. [DOI: 10.1016/j.jff.2021.104910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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von Gerichten J, West AL, Irvine NA, Miles EA, Calder PC, Lillycrop KA, Fielding BA, Burdge GC. The Partitioning of Newly Assimilated Linoleic and α-Linolenic Acids Between Synthesis of Longer-Chain Polyunsaturated Fatty Acids and Hydroxyoctadecaenoic Acids Is a Putative Branch Point in T-Cell Essential Fatty Acid Metabolism. Front Immunol 2021; 12:740749. [PMID: 34675928 PMCID: PMC8523940 DOI: 10.3389/fimmu.2021.740749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/08/2021] [Indexed: 12/28/2022] Open
Abstract
Longer-chain polyunsaturated fatty acids (LCPUFAs) ≥20 carbons long are required for leukocyte function. These can be obtained from the diet, but there is some evidence that leukocytes can convert essential fatty acids (EFAs) into LCPUFAs. We used stable isotope tracers to investigate LCPUFA biosynthesis and the effect of different EFA substrate ratios in human T lymphocytes. CD3+ T cells were incubated for up to 48 h with or without concanavalin A in media containing a 18:2n-6:18:3n-3 (EFA) ratio of either 5:1 or 8:1 and [13C]18:3n-3 plus [d5]18:2n-6. Mitogen stimulation increased the amounts of 16:1n-7, 18:1n-9, 18:2n-6, 20:3n-6, 20:4n-6, 18:3n-3, and 20:5n-3 in T cells. Expression of the activation marker CD69 preceded increased FADS2 and FADS1 mRNA expression and increased amounts of [d5]20:2n-6 and [13C]20:3n-3 at 48 h. In addition, 22-carbon n-6 or n-3 LCPUFA synthesis was not detected, consistent with the absence of ELOVL2 expression. An EFA ratio of 8:1 reduced 18:3n-3 conversion and enhanced 20:2n-6 synthesis compared to a 5:1 ratio. Here, [d5]9- and [d5]-13-hydroxyoctadecadienoic (HODE) and [13C]9- and [13C]13-hydroxyoctadecatrienoic acids (HOTrE) were the major labelled oxylipins in culture supernatants; labelled oxylipins ≥20 carbons were not detected. An EFA ratio of 8:1 suppressed 9- and 13-HOTrE synthesis, but there was no significant effect on 9- and 13-HODE synthesis. These findings suggest that partitioning of newly assimilated EFA between LCPUFA synthesis and hydroxyoctadecaenoic acid may be a metabolic branch point in T-cell EFA metabolism that has implications for understanding the effects of dietary fats on T lymphocyte function.
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Affiliation(s)
- Johanna von Gerichten
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Surrey, United Kingdom
| | - Annette L West
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Nicola A Irvine
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Elizabeth A Miles
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Philip C Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.,National Institute of Health Research (NIHR) Southampton Biomedical Research Centre, University Hospital Southampton National Health Service (NHS) Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Karen A Lillycrop
- Centre for Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Southampton, United Kingdom
| | - Barbara A Fielding
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Surrey, United Kingdom
| | - Graham C Burdge
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
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Huang C, Shen Y, Shen M, Fan X, Men R, Ye T, Yang L. Glucose Metabolism Reprogramming of Regulatory T Cells in Concanavalin A-Induced Hepatitis. Front Pharmacol 2021; 12:726128. [PMID: 34531750 PMCID: PMC8438122 DOI: 10.3389/fphar.2021.726128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/19/2021] [Indexed: 02/05/2023] Open
Abstract
Autoimmune hepatitis (AIH) is an inflammatory liver disease caused by a dysregulated immune response. Although the pathogenesis of AIH remains unclear, impaired regulatory T cells (Tregs) have been considered a driver of AIH development. Unlike autoreactive T cells, Tregs mainly utilize oxidative phosphorylation (OXPHOS) as their energy supply. Elevated glycolysis has been reported to limit the suppressive functions of Tregs. However, whether glucose metabolism reprogramming in Tregs is involved in AIH etiology remains unknown. The aim of this study was to examine alternations in Treg numbers and functions in AIH patients and concanavalin A (Con A)-induced hepatitis, while exploring associations between impaired Tregs and glucose metabolism. The frequency of Tregs was decreased in the peripheral blood but increased in liver biopsies of AIH patients. Moreover, immunosuppressive therapy rescued circulating Tregs in AIH. In Con A-induced immune hepatitis, enhanced intrahepatic Treg accumulation was observed over time, accompanied by reduced splenic Treg numbers. To investigate whether functional impairment of Tregs occurs in AIH, Tregs were isolated from experimental AIH (EAH) model mice and normal controls and the former displayed downregulated mRNA levels of FOXP3, CTLA4, CD103, TIGIT, CD39, and CD73. EAH model-derived Tregs also produced fewer anti-inflammatory mediators (TGF-β and IL-35) than control Tregs. Moreover, enhanced glycolysis and reduced OXPHOS were found in Tregs from EAH model mice, as reflected by elevated levels of key glycolytic enzymes (HK2, PK-M2, and LDH-A) and a decreased ATP concentration. This study revealed a decreased peripheral Treg frequency and abnormal intrahepatic Treg infiltration in AIH. It is first reported that glucose metabolism reprogramming is associated with decreases and functional impairments in the Treg population, promoting AIH development. Targeting glucose metabolism may provide novel insights for the treatment of AIH.
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Affiliation(s)
- Chen Huang
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Shen
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Mengyi Shen
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoli Fan
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Ruoting Men
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Tinghong Ye
- Laboratory of Liver Surgery, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Li Yang
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
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Poholek AC. Tissue-Specific Contributions to Control of T Cell Immunity. Immunohorizons 2021; 5:410-423. [PMID: 34103371 PMCID: PMC10876086 DOI: 10.4049/immunohorizons.2000103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/17/2021] [Indexed: 11/19/2022] Open
Abstract
T cells are critical for orchestrating appropriate adaptive immune responses and maintaining homeostasis in the face of persistent nonpathogenic Ags. T cell function is controlled in part by environmental signals received upon activation and derived from the tissue environment in which Ag is encountered. Indeed, tissue-specific environments play important roles in controlling the T cell response to Ag, and recent evidence suggests that tissue draining lymph nodes can mirror those local differences. Thus, tissue-specific immunity may begin at priming in secondary lymph nodes, where local signals have an important role in T cell fate. In this study, we discuss the tissue-specific signals that may impact T cell differentiation and function, including the microbiome, metabolism, and tissue-specific innate cell imprinting. We argue that these individual contributions create tissue-specific niches that likely play important roles in T cell differentiation and function controlling the outcome of the response to Ags.
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Affiliation(s)
- Amanda C Poholek
- Division of Pediatric Rheumatology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA; and Department of Immunology, University of Pittsburgh, Pittsburgh, PA
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