101
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da Silva IDCG, Marchioni DML, Carioca AAF, Bueno V, Colleoni GWB. May critical molecular cross-talk between indoleamine 2,3-dioxygenase (IDO) and arginase during human aging be targets for immunosenescence control? Immun Ageing 2021; 18:33. [PMID: 34389039 PMCID: PMC8361614 DOI: 10.1186/s12979-021-00244-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/02/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND This study aimed to identify novel plasma metabolic signatures with possible clinical relevance during the aging process. A biochemical quantitative phenotyping platform, based on targeted electrospray ionization tandem mass spectrometry technology, was used for the identification of any eventual perturbed biochemical pathway by the aging process in prospectively collected peripheral blood plasma from 166 individuals representing the population of São Paulo city, Brazil. RESULTS Indoleamine 2,3-dioxygenase (IDO) activity (Kyn/Trp) was significantly elevated with age, and among metabolites most associated with elevations in IDO, one of the strongest correlations was with arginase (Orn/Arg), which could also facilitate the senescence process of the immune system. Hyperactivity of IDO was also found to correlate with increased blood concentrations of medium-chain acylcarnitines, suggesting that deficiencies in beta-oxidation may also be involved in the immunosenescence process. Finally, our study provided evidence that the systemic methylation status was significantly increased and positively correlated to IDO activity. CONCLUSIONS In the present article, besides identifying elevated IDO activity exhibiting striking parallel association with the aging process, we additionally identified increased arginase activity as an underlying biochemical disturbance closely following elevations in IDO. Our findings support interventions to reduce IDO or arginase activities in an attempt to preserve the functionality of the immune system, including modulation of myeloid-derived suppressor cells (MDSCs), T cells, macrophages, and dendritic cells' function, in old individuals/patients.
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Affiliation(s)
| | - Dirce Maria Lobo Marchioni
- Nutrition Department, School of Public Health, University of São Paulo School of Medicine (FMUSP), São Paulo, Brazil
| | - Antonio Augusto Ferreira Carioca
- Nutrition Department, School of Public Health, University of São Paulo School of Medicine (FMUSP), São Paulo, Brazil
- Nutrition Department, Universidade de Fortaleza (UNIFOR), Fortaleza, Brazil
| | - Valquiria Bueno
- Department of Microbiology, Immunology and Parasitology, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil
| | - Gisele Wally Braga Colleoni
- Department of Clinical and Experimental Oncology, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil.
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102
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Chen Y, Chen YX. Microbiota-Associated Metabolites and Related Immunoregulation in Colorectal Cancer. Cancers (Basel) 2021; 13:4054. [PMID: 34439208 PMCID: PMC8394439 DOI: 10.3390/cancers13164054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/25/2021] [Accepted: 07/02/2021] [Indexed: 12/19/2022] Open
Abstract
A growing body of research has found close links between the human gut microbiota and colorectal cancer (CRC), associated with the direct actions of specific bacteria and the activities of microbiota-derived metabolites, which are implicated in complex immune responses, thus influencing carcinogenesis. Diet has a significant impact on the structure of the microbiota and also undergoes microbial metabolism. Some metabolites, such as short-chain fatty acids (SCFAs) and indole derivatives, act as protectors against cancer by regulating immune responses, while others may promote cancer. However, the specific influence of these metabolites on the host is conditional. We reviewed the recent insights on the relationships among diet, microbiota-derived metabolites, and CRC, focusing on their intricate immunomodulatory responses, which might influence the progression of colorectal cancer.
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Affiliation(s)
| | - Ying-Xuan Chen
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai 200001, China;
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103
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Baudi I, Kawashima K, Isogawa M. HBV-Specific CD8+ T-Cell Tolerance in the Liver. Front Immunol 2021; 12:721975. [PMID: 34421926 PMCID: PMC8378532 DOI: 10.3389/fimmu.2021.721975] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/13/2021] [Indexed: 12/15/2022] Open
Abstract
Hepatitis B virus (HBV) remains a leading cause of liver-related morbidity and mortality through chronic hepatitis that may progress to liver cirrhosis and cancer. The central role played by HBV-specific CD8+ T cells in the clearance of acute HBV infection, and HBV-related liver injury is now well established. Vigorous, multifunctional CD8+ T cell responses are usually induced in most adult-onset HBV infections, while chronic hepatitis B (CHB) is characterized by quantitatively and qualitatively weak HBV-specific CD8+ T cell responses. The molecular basis of this dichotomy is poorly understood. Genomic analysis of dysfunctional HBV-specific CD8+ T cells in CHB patients and various mouse models suggest that multifaceted mechanisms including negative signaling and metabolic abnormalities cooperatively establish CD8+ T cell dysfunction. Immunoregulatory cell populations in the liver, including liver resident dendritic cells (DCs), hepatic stellate cells (HSCs), myeloid-derived suppressor cells (MDSCs), may contribute to intrahepatic CD8+ T cell dysfunction through the production of soluble mediators, such as arginase, indoleamine 2,3-dioxygenase (IDO) and suppressive cytokines and the expression of co-inhibitory molecules. A series of recent studies with mouse models of HBV infection suggest that genetic and epigenetic changes in dysfunctional CD8+ T cells are the manifestation of prolonged antigenic stimulation, as well as the absence of co-stimulatory or cytokine signaling. These new findings may provide potential new targets for immunotherapy aiming at invigorating HBV-specific CD8+ T cells, which hopefully cures CHB.
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Affiliation(s)
- Ian Baudi
- Department of Virology and Liver Unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Keigo Kawashima
- Department of Virology and Liver Unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Masanori Isogawa
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases, Tokyo, Japan
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104
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Li X, Li Y, Yu Q, Qian P, Huang H, Lin Y. Metabolic reprogramming of myeloid-derived suppressor cells: An innovative approach confronting challenges. J Leukoc Biol 2021; 110:257-270. [PMID: 34075637 PMCID: PMC8361984 DOI: 10.1002/jlb.1mr0421-597rr] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 02/06/2023] Open
Abstract
Immune cells such as T cells, macrophages, dendritic cells, and other immunoregulatory cells undergo metabolic reprogramming in cancer and inflammation-derived microenvironment to meet specific physiologic and functional demands. Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immature myeloid cells that are characterized by immunosuppressive activity, which plays a key role in host immune homeostasis. In this review, we have discussed the core metabolic pathways, including glycolysis, lipid and fatty acid biosynthesis, and amino acid metabolism in the MDSCs under various pathologic situations. Metabolic reprogramming is a determinant of the phenotype and functions of MDSCs, and is therefore a novel therapeutic possibility in various diseases.
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Affiliation(s)
- Xiaoqing Li
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
- Institute of HematologyZhejiang UniversityHangzhouZhejiangChina
- Zhejiang Province Engineering Laboratory for Stem Cell and Immunity TherapyHangzhouZhejiangChina
- Liangzhu LaboratoryZhejiang University Medical CenterHangzhouZhejiangChina
| | - Yixue Li
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
- Institute of HematologyZhejiang UniversityHangzhouZhejiangChina
- Zhejiang Province Engineering Laboratory for Stem Cell and Immunity TherapyHangzhouZhejiangChina
- Liangzhu LaboratoryZhejiang University Medical CenterHangzhouZhejiangChina
| | - Qinru Yu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
- Institute of HematologyZhejiang UniversityHangzhouZhejiangChina
- Zhejiang Province Engineering Laboratory for Stem Cell and Immunity TherapyHangzhouZhejiangChina
- Liangzhu LaboratoryZhejiang University Medical CenterHangzhouZhejiangChina
| | - Pengxu Qian
- Institute of HematologyZhejiang UniversityHangzhouZhejiangChina
- Zhejiang Province Engineering Laboratory for Stem Cell and Immunity TherapyHangzhouZhejiangChina
- Liangzhu LaboratoryZhejiang University Medical CenterHangzhouZhejiangChina
| | - He Huang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
- Institute of HematologyZhejiang UniversityHangzhouZhejiangChina
- Zhejiang Province Engineering Laboratory for Stem Cell and Immunity TherapyHangzhouZhejiangChina
- Liangzhu LaboratoryZhejiang University Medical CenterHangzhouZhejiangChina
| | - Yu Lin
- Bone Marrow Transplantation Center, the First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouZhejiangChina
- Institute of HematologyZhejiang UniversityHangzhouZhejiangChina
- Zhejiang Province Engineering Laboratory for Stem Cell and Immunity TherapyHangzhouZhejiangChina
- Liangzhu LaboratoryZhejiang University Medical CenterHangzhouZhejiangChina
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105
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Mondanelli G, Albini E, Orecchini E, Pallotta MT, Belladonna ML, Ricci G, Grohmann U, Orabona C. Pathogenetic Interplay Between IL-6 and Tryptophan Metabolism in an Experimental Model of Obesity. Front Immunol 2021; 12:713989. [PMID: 34394118 PMCID: PMC8361489 DOI: 10.3389/fimmu.2021.713989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 07/19/2021] [Indexed: 12/12/2022] Open
Abstract
Obesity is a metabolic disease characterized by a state of chronic, low-grade inflammation and dominated by pro-inflammatory cytokines such as IL-6. Indoleamine 2,3-dioxygenase 1 (IDO1) is an enzyme that catalyzes the first step in the kynurenine pathway by transforming l-tryptophan (Trp) into l-kynurenine (Kyn), a metabolite endowed with anti-inflammatory and immunoregulatory effects. In dendritic cells, IL-6 induces IDO1 proteasomal degradation and shuts down IDO1-mediated immunosuppressive effects. In tumor cells, IL-6 upregulates IDO1 expression and favors tumor immune escape mechanisms. To investigate the role of IDO1 and its possible relationship with IL-6 in obesity, we induced the disease by feeding mice with a high fat diet (HFD). Mice on a standard diet were used as control. Experimental obesity was associated with high IDO1 expression and Kyn levels in the stromal vascular fraction of visceral white adipose tissue (SVF WAT). IDO1-deficient mice on HFD gained less weight and were less insulin resistant as compared to wild type counterparts. Administration of tocilizumab (TCZ), an IL-6 receptor (IL-6R) antagonist, to mice on HFD significantly reduced weight gain, controlled adipose tissue hypertrophy, increased insulin sensitivity, and induced a better glucose tolerance. TCZ also induced a dramatic inhibition of IDO1 expression and Kyn production in the SVF WAT. Thus our data indicated that the IL-6/IDO1 axis may play a pathogenetic role in a chronic, low-grade inflammation condition, and, perhaps most importantly, IL-6R blockade may be considered a valid option for obesity treatment.
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Affiliation(s)
- Giada Mondanelli
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Elisa Albini
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Elena Orecchini
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | | | - Giovanni Ricci
- Service Center for Pre-clinical Research, University of Perugia, Perugia, Italy
| | - Ursula Grohmann
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Ciriana Orabona
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
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106
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3-hydroxy-L-kynurenamine is an immunomodulatory biogenic amine. Nat Commun 2021; 12:4447. [PMID: 34290243 PMCID: PMC8295276 DOI: 10.1038/s41467-021-24785-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/30/2021] [Indexed: 12/12/2022] Open
Abstract
Tryptophan catabolism is a major metabolic pathway utilized by several professional and non-professional antigen presenting cells to maintain immunological tolerance. Here we report that 3-hydroxy-l-kynurenamine (3-HKA) is a biogenic amine produced via an alternative pathway of tryptophan metabolism. In vitro, 3-HKA has an anti-inflammatory profile by inhibiting the IFN-γ mediated STAT1/NF-κΒ pathway in both mouse and human dendritic cells (DCs) with a consequent decrease in the release of pro-inflammatory chemokines and cytokines, most notably TNF, IL-6, and IL12p70. 3-HKA has protective effects in an experimental mouse model of psoriasis by decreasing skin thickness, erythema, scaling and fissuring, reducing TNF, IL-1β, IFN-γ, and IL-17 production, and inhibiting generation of effector CD8+ T cells. Similarly, in a mouse model of nephrotoxic nephritis, besides reducing inflammatory cytokines, 3-HKA improves proteinuria and serum urea nitrogen, overall ameliorating immune-mediated glomerulonephritis and renal dysfunction. Overall, we propose that this biogenic amine is a crucial component of tryptophan-mediated immune tolerance. 3-hydroxy-L-kynurenamine (3-HKA) is a metabolite deriving from a lateral pathway of tryptophan catabolism. Here the authors identify 3-HKA as a biogenic amine and show it has anti-inflammatory properties that can protect mice against psoriasis and nephrotoxic nephritis.
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107
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Mansouri S, Gogoi H, Pipkin M, Machuca TN, Emtiazjoo AM, Sharma AK, Jin L. In vivo reprogramming of pathogenic lung TNFR2 + cDC2s by IFNβ inhibits HDM-induced asthma. Sci Immunol 2021; 6:6/61/eabi8472. [PMID: 34244314 DOI: 10.1126/sciimmunol.abi8472] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 05/21/2021] [Indexed: 01/28/2023]
Abstract
Asthma is a common inflammatory lung disease with no known cure. Previously, we uncovered a lung TNFR2+ conventional DC2 subset (cDC2s) that induces regulatory T cells (Tregs) maintaining lung tolerance at steady state but promotes TH2 response during house dust mite (HDM)-induced asthma. Lung IFNβ is essential for TNFR2+ cDC2s-mediated lung tolerance. Here, we showed that exogenous IFNβ reprogrammed TH2-promoting pathogenic TNFR2+ cDC2s back to tolerogenic DCs, alleviating eosinophilic asthma and preventing asthma exacerbation. Mechanistically, inhaled IFNβ, not IFNα, activated ERK2 signaling in pathogenic lung TNFR2+ cDC2s, leading to enhanced fatty acid oxidation (FAO) and lung Treg induction. Last, human IFNβ reprogrammed pathogenic human lung TNFR2+ cDC2s from patients with emphysema ex vivo. Thus, we identified an IFNβ-specific ERK2-FAO pathway that might be harnessed for DC therapy.
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Affiliation(s)
- Samira Mansouri
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Himanshu Gogoi
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Mauricio Pipkin
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Florida, Gainesville, FL 32610, USA
| | - Tiago N Machuca
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Florida, Gainesville, FL 32610, USA
| | - Amir M Emtiazjoo
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Ashish K Sharma
- Division of Vascular Surgery and Endovascular Therapy, Department of Surgery, University of Florida, Gainesville, FL 32610, USA
| | - Lei Jin
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida, Gainesville, FL 32610, USA.
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108
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Martí I Líndez AA, Reith W. Arginine-dependent immune responses. Cell Mol Life Sci 2021; 78:5303-5324. [PMID: 34037806 PMCID: PMC8257534 DOI: 10.1007/s00018-021-03828-4] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/23/2021] [Accepted: 03/29/2021] [Indexed: 02/07/2023]
Abstract
A growing body of evidence indicates that, over the course of evolution of the immune system, arginine has been selected as a node for the regulation of immune responses. An appropriate supply of arginine has long been associated with the improvement of immune responses. In addition to being a building block for protein synthesis, arginine serves as a substrate for distinct metabolic pathways that profoundly affect immune cell biology; especially macrophage, dendritic cell and T cell immunobiology. Arginine availability, synthesis, and catabolism are highly interrelated aspects of immune responses and their fine-tuning can dictate divergent pro-inflammatory or anti-inflammatory immune outcomes. Here, we review the organismal pathways of arginine metabolism in humans and rodents, as essential modulators of the availability of this semi-essential amino acid for immune cells. We subsequently review well-established and novel findings on the functional impact of arginine biosynthetic and catabolic pathways on the main immune cell lineages. Finally, as arginine has emerged as a molecule impacting on a plethora of immune functions, we integrate key notions on how the disruption or perversion of arginine metabolism is implicated in pathologies ranging from infectious diseases to autoimmunity and cancer.
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Affiliation(s)
| | - Walter Reith
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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109
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Amino acid metabolism and signalling pathways: potential targets in the control of infection and immunity. Eur J Clin Nutr 2021; 75:1319-1327. [PMID: 34163018 PMCID: PMC8220356 DOI: 10.1038/s41430-021-00943-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/04/2021] [Accepted: 05/12/2021] [Indexed: 12/13/2022]
Abstract
Defences to pathogens such as SarCoV2 in mammals involves interactions between immune functions and metabolic pathways to eradicate infection while preventing hyperinflammation. Amino acid metabolic pathways represent with other antimicrobial agent potential targets for therapeutic strategies. iNOS-mediated production of NO from Arg is involved in the innate inflammatory response to pathogens and NO overproduction can induce hyperinflammation. The two Arg- and Trp-catabolising enzymes Arg1 and IDO1 reduce the hyperinflammation by an immunosuppressive effect via either Arg starvation (for Arg1) or via the immunoregulatory activity of the Trp-derived metabolites Kyn (for IDO1). In response to amino acid abundance mTOR activates the host protein translation and Coronaviruses use this machinery for their own protein synthesis and replication. In contrast GCN2, the sensor of amino acid starvation, activates pathways that restrict inflammation and viral replication. Gln depletion alters the immune response that become more suppressive, by favouring a regulatory T phenotype rather than a Th1 phenotype. Proliferating activated immune cells are highly dependent on Ser, activation and differentiation of T cells need enough Ser and dietary Ser restriction can inhibit their proliferation. Cys is strictly required for T-cell proliferation because they cannot convert Met to Cys. Restricting Met inhibits both viral RNA cap methylation and replication, and the proliferation of infected cells with an increased requirement for Met. Phe catabolism produces antimicrobial metabolites resulting in the inhibition of microbial growth and an immunosuppressive activity towards T lymphocytes.
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110
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Tomé D. Amino acid metabolism and signalling pathways: potential targets in the control of infection and immunity. Nutr Diabetes 2021; 11:20. [PMID: 34168115 PMCID: PMC8223530 DOI: 10.1038/s41387-021-00164-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/04/2021] [Accepted: 05/12/2021] [Indexed: 02/06/2023] Open
Abstract
Defences to pathogens such as SarCoV2 in mammals involves interactions between immune functions and metabolic pathways to eradicate infection while preventing hyperinflammation. Amino acid metabolic pathways represent with other antimicrobial agent potential targets for therapeutic strategies. iNOS-mediated production of NO from Arg is involved in the innate inflammatory response to pathogens and NO overproduction can induce hyperinflammation. The two Arg-catabolising enzymes Arg1 and IDO1 reduce the hyperinflammation by an immunosuppressive effect via either Arg starvation (for Arg1) or via the immunoregulatory activity of the Arg-derived metabolites Kyn (for IDO1). In response to amino acid abundance mTOR activates the host protein translation and Coronaviruses use this machinery for their own protein synthesis and replication. In contrast GCN2, the sensor of amino acid starvation, activates pathways that restrict inflammation and viral replication. Gln depletion alters the immune response that become more suppressive, by favouring a regulatory T phenotype rather than a Th1 phenotype. Proliferating activated immune cells are highly dependent on Ser, activation and differentiation of T cells need enough Ser and dietary Ser restriction can inhibit their proliferation. Cys is strictly required for T-cell proliferation because they cannot convert Met to Cys. Restricting Met inhibits both viral RNA cap methylation and replication, and the proliferation of infected cells with an increased requirement for Met. Phe catabolism produces antimicrobial metabolites resulting in the inhibition of microbial growth and an immunosuppressive activity towards T lymphocytes.
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Affiliation(s)
- Daniel Tomé
- grid.417885.70000 0001 2185 8223UMR PNCA, AgroParisTech, INRAE, Université Paris-Saclay, Paris, France
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111
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Inhibition of host Ogr1 enhances effector CD8 + T-cell function by modulating acidic microenvironment. Cancer Gene Ther 2021; 28:1213-1224. [PMID: 34158625 PMCID: PMC8571096 DOI: 10.1038/s41417-021-00354-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/07/2021] [Accepted: 05/25/2021] [Indexed: 01/18/2023]
Abstract
Immunotherapies for cancer, such as immune checkpoint blockade or adoptive T-cell transfer, can lead to a long-lasting clinical response. But the therapeutic response rate remains low on account of many tumors that have evolved sophisticated strategies to evade immune surveillance. Solid tumors are characterized by the highly acidic microenvironment, which may weaken the effectiveness of antitumor immunity. Here, we explored a promising therapeutic development deployed by pH manipulation for avoiding immunoevasion. The highly acidified microenvironment of melanoma induces the expression of G-protein-coupled receptor (Ogr1) in T cells, which weakened their effective function and promote tumor growth. Ogr1 inhibition reactivate CD8+ T cells and have a cytotoxic role by reducing the activity of high glycolysis, resulting in comparatively low acidification of the tumor microenvironment, and leads to tumor suppression. In addition, the adoptive transfer of Ogr1-/--CD8+ T cells enhanced the antitumor responses, with the potential for immediate clinical transformation.
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112
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Metabolic Modulation of Immunity: A New Concept in Cancer Immunotherapy. Cell Rep 2021; 32:107848. [PMID: 32640218 DOI: 10.1016/j.celrep.2020.107848] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/22/2020] [Accepted: 06/11/2020] [Indexed: 12/18/2022] Open
Abstract
Immunotherapy shifted the paradigm of cancer treatment. The clinical approval of immune checkpoint blockade and adoptive cell transfer led to considerable success in several tumor types. However, for a significant number of patients, these therapies have proven ineffective. Growing evidence shows that the metabolic requirements of immune cells in the tumor microenvironment (TME) greatly influence the success of immunotherapy. It is well established that the TME influences energy consumption and metabolic reprogramming of immune cells, often inducing them to become tolerogenic and inefficient in cancer cell eradication. Increasing nutrient availability using pharmacological modulators of metabolism or antibodies targeting specific immune receptors are strategies that support energetic rewiring of immune cells and boost their anti-tumor capacity. In this review, we describe the metabolic features of the diverse immune cell types in the context of the TME and discuss how these immunomodulatory strategies could synergize with immunotherapy to circumvent its current limitations.
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113
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Tabana Y, Okoye IS, Siraki A, Elahi S, Barakat KH. Tackling Immune Targets for Breast Cancer: Beyond PD-1/PD-L1 Axis. Front Oncol 2021; 11:628138. [PMID: 33747948 PMCID: PMC7973280 DOI: 10.3389/fonc.2021.628138] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 02/08/2021] [Indexed: 12/24/2022] Open
Abstract
The burden of breast cancer is imposing a huge global problem. Drug discovery research and novel approaches to treat breast cancer have been carried out extensively over the last decades. Although immune checkpoint inhibitors are showing promising preclinical and clinical results in treating breast cancer, they are facing multiple limitations. From an immunological perspective, a recent report highlighted breast cancer as an "inflamed tumor" with an immunosuppressive microenvironment. Consequently, researchers have been focusing on identifying novel immunological targets that can tune up the tumor immune microenvironment. In this context, several novel non-classical immune targets have been targeted to determine their ability to uncouple immunoregulatory pathways at play in the tumor microenvironment. This article will highlight strategies designed to increase the immunogenicity of the breast tumor microenvironment. It also addresses the latest studies on targets which can enhance immune responses to breast cancer and discusses examples of preclinical and clinical trial landscapes that utilize these targets.
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Affiliation(s)
- Yasser Tabana
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
| | - Isobel S. Okoye
- School of Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Arno Siraki
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
| | - Shokrollah Elahi
- School of Dentistry, University of Alberta, Edmonton, AB, Canada
- Department of Oncology, University of Alberta, Edmonton, AB, Canada
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada
| | - Khaled H. Barakat
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
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114
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Yu B, Mamedov R, Fuhler GM, Peppelenbosch MP. Drug Discovery in Liver Disease Using Kinome Profiling. Int J Mol Sci 2021; 22:2623. [PMID: 33807722 PMCID: PMC7961955 DOI: 10.3390/ijms22052623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/01/2021] [Accepted: 03/01/2021] [Indexed: 12/15/2022] Open
Abstract
The liver is one of the most important organs, playing critical roles in maintaining biochemical homeostasis. Accordingly, disease of the liver is often debilitating and responsible for untold human misery. As biochemical nexus, with kinases being master regulators of cellular biochemistry, targeting kinase enzymes is an obvious avenue for treating liver disease. Development of such therapy, however, is hampered by the technical difficulty of obtaining comprehensive insight into hepatic kinase activity, a problem further compounded by the often unique aspects of hepatic kinase activities, which makes extrapolations from other systems difficult. This consideration prompted us to review the current state of the art with respect to kinome profiling approaches towards the hepatic kinome. We observe that currently four different approaches are available, all showing significant promise. Hence we postulate that insight into the hepatic kinome will quickly increase, leading to rational kinase-targeted therapy for different liver diseases.
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Affiliation(s)
| | | | | | - Maikel P. Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus MC—University Medical Center Rotterdam, 3015 CN Rotterdam, The Netherlands; (B.Y.); (R.M.); (G.M.F.)
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115
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Peng X, He Y, Huang J, Tao Y, Liu S. Metabolism of Dendritic Cells in Tumor Microenvironment: For Immunotherapy. Front Immunol 2021; 12:613492. [PMID: 33732237 PMCID: PMC7959811 DOI: 10.3389/fimmu.2021.613492] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 01/25/2021] [Indexed: 12/12/2022] Open
Abstract
Dendritic cells (DCs) are a type of an antigen-presenting cell which undertake a job on capturing antigens coming from pathogens or tumors and presenting to T cells for immune response. The metabolism of DCs controls its development, polarization, and maturation processes and provides energy support for its functions. However, the immune activity of DCs in tumor microenvironment (TME) is inhibited generally. Abnormal metabolism of tumor cells causes metabolic changes in TME, such as hyperglycolysis, lactate and lipid accumulation, acidification, tryptophan deprivation, which limit the function of DCs and lead to the occurrence of tumor immune escape. Combined metabolic regulation with immunotherapy can strengthen the ability of antigen-presentation and T cell activation of DCs, improve the existing anti-tumor therapy, and overcome the defects of DC-related therapies in the current stage, which has great potential in oncology therapy. Therefore, we reviewed the glucose, lipid, and amino acid metabolism of DCs, as well as the metabolic changes after being affected by TME. Together with the potential metabolic targets of DCs, possible anti-tumor therapeutic pathways were summarized.
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Affiliation(s)
- Xin Peng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Youe He
- Department of Translational Medicine, Cancer Biological Treatment Center, Xiangya Hospital, Central South University, Changsha, China.,Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, China
| | - Jun Huang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Carcinogenesis of Ministry of Health, Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Shuang Liu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, China.,Department of Oncology, Institute of Medical Sciences, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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116
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Crowther RR, Qualls JE. Metabolic Regulation of Immune Responses to Mycobacterium tuberculosis: A Spotlight on L-Arginine and L-Tryptophan Metabolism. Front Immunol 2021; 11:628432. [PMID: 33633745 PMCID: PMC7900187 DOI: 10.3389/fimmu.2020.628432] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/30/2020] [Indexed: 12/16/2022] Open
Abstract
Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB), is a leading cause of death worldwide. Despite decades of research, there is still much to be uncovered regarding the immune response to Mtb infection. Here, we summarize the current knowledge on anti-Mtb immunity, with a spotlight on immune cell amino acid metabolism. Specifically, we discuss L-arginine and L-tryptophan, focusing on their requirements, regulatory roles, and potential use as adjunctive therapy in TB patients. By continuing to uncover the immune cell contribution during Mtb infection and how amino acid utilization regulates their functions, it is anticipated that novel host-directed therapies may be developed and/or refined, helping to eradicate TB.
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Affiliation(s)
- Rebecca R Crowther
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Joseph E Qualls
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
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117
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Weng CY, Kao CX, Chang TS, Huang YH. Immuno-Metabolism: The Role of Cancer Niche in Immune Checkpoint Inhibitor Resistance. Int J Mol Sci 2021; 22:1258. [PMID: 33514004 PMCID: PMC7865434 DOI: 10.3390/ijms22031258] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 12/12/2022] Open
Abstract
The use of immune checkpoint inhibitors (ICI) in treating cancer has revolutionized the approach to eradicate cancer cells by reactivating immune responses. However, only a subset of patients benefits from this treatment; the majority remains unresponsive or develops resistance to ICI therapy. Increasing evidence suggests that metabolic machinery in the tumor microenvironment (TME) plays a role in the development of ICI resistance. Within the TME, nutrients and oxygen are scarce, forcing immune cells to undergo metabolic reprogramming to adapt to harsh conditions. Cancer-induced metabolic deregulation in immune cells can attenuate their anti-cancer properties, but can also increase their immunosuppressive properties. Therefore, targeting metabolic pathways of immune cells in the TME may strengthen the efficacy of ICIs and prevent ICI resistance. In this review, we discuss the interactions of immune cells and metabolic alterations in the TME. We also discuss current therapies targeting cellular metabolism in combination with ICIs for the treatment of cancer, and provide possible mechanisms behind the cellular metabolic rewiring that may improve clinical outcomes.
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Affiliation(s)
- Chao-Yuan Weng
- School of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan;
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
| | - Cheng-Xiang Kao
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Te-Sheng Chang
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 33382, Taiwan
- Division of Internal Medicine, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan
| | - Yen-Hua Huang
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center of Cell Therapy and Regeneration Medicine, Taipei Medical University, Taipei 11031, Taiwan
- International Ph.D. Program for Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Center for Reproductive Medicine, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
- Comprehensive Cancer Center of Taipei Medical University, Taipei 11031, Taiwan
- PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
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118
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Dey P, Kimmelman AC, DePinho RA. Metabolic Codependencies in the Tumor Microenvironment. Cancer Discov 2021; 11:1067-1081. [PMID: 33504580 DOI: 10.1158/2159-8290.cd-20-1211] [Citation(s) in RCA: 157] [Impact Index Per Article: 52.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/20/2020] [Accepted: 11/30/2020] [Indexed: 11/16/2022]
Abstract
Metabolic reprogramming enables cancer cell growth, proliferation, and survival. This reprogramming is driven by the combined actions of oncogenic alterations in cancer cells and host cell factors acting on cancer cells in the tumor microenvironment. Cancer cell-intrinsic mechanisms activate signal transduction components that either directly enhance metabolic enzyme activity or upregulate transcription factors that in turn increase expression of metabolic regulators. Extrinsic signaling mechanisms involve host-derived factors that further promote and amplify metabolic reprogramming in cancer cells. This review describes intrinsic and extrinsic mechanisms driving cancer metabolism in the tumor microenvironment and how such mechanisms may be targeted therapeutically. SIGNIFICANCE: Cancer cell metabolic reprogramming is a consequence of the converging signals originating from both intrinsic and extrinsic factors. Intrinsic signaling maintains the baseline metabolic state, whereas extrinsic signals fine-tune the metabolic processes based on the availability of metabolites and the requirements of the cells. Therefore, successful targeting of metabolic pathways will require a nuanced approach based on the cancer's genotype, tumor microenvironment composition, and tissue location.
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Affiliation(s)
- Prasenjit Dey
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, New York. .,Tumor Immunology and Immunotherapy Program, State University of New York (SUNY) at Buffalo, Buffalo, New York
| | - Alec C Kimmelman
- Department of Radiation Oncology, Perlmutter Cancer Center, NYU Langone Medical Center, New York, New York
| | - Ronald A DePinho
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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119
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Orecchini E, Mondanelli G, Orabona C, Volpi C, Adorisio S, Calvitti M, Thuy TT, Delfino DV, Belladonna ML. Artocarpus tonkinensis Extract Inhibits LPS-Triggered Inflammation Markers and Suppresses RANKL-Induced Osteoclastogenesis in RAW264.7. Front Pharmacol 2021; 11:593829. [PMID: 33551802 PMCID: PMC7862131 DOI: 10.3389/fphar.2020.593829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 12/21/2020] [Indexed: 12/29/2022] Open
Abstract
Artocarpus tonkinensis (At) leaf decoction, a traditional remedy prepared in North Vietnam by the Hmong ethnic group, is a tea extract rich in bioactive compounds that may have therapeutic effects in arthritis and backache. Indeed, it has been demonstrated that At is able to inhibit Th17 lymphocytes development and to protect mice in an experimental model of collagen-induced arthritis. By resorting to macrophage in vitro models of inflammation and osteoclastogenesis, we showed that At extract significantly reduced nitric oxide synthase 2 (NOS2) activity and IL-6 production by RAW 264.7 murine cells. Moreover, At demonstrated an anti-osteoclastogenic effect, as revealed by complete inhibition of TRAP-positive osteoclast formation and decreased expression of key osteoclast-related genes. This At activity likely relies on the inhibition of RANK downstream signaling pathway, as the activation of non-receptor tyrosine kinase Src is reduced upon RANKL-At exposure. Protective effect of At against bone loss was also enlightened in vivo by collagen-induced arthritis (CIA) experiment demonstrating that, although paw edema was only weakly opposed by drinking At decoction, bone and cartilage were well preserved in CIA+At mice and joint tissue expressed decreased levels of osteoclast marker genes respect to CIA control group. Maesopsin 4-O-β-D-glucoside (i.e., TAT-2, one of the main decoction bioactive components) was capable to contrast NOS2 activity, IL-6 expression and osteoclast formation, too, albeit to a lesser extent when compared to At decoction. Overall, this study enlightens another At cell target, macrophages, beside Th17 lymphocytes, and suggests that the anti-arthritic beneficial effects of At decoction largely derives from its ability to counteract not only inflammation, but also osteoclastogenesis.
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Affiliation(s)
- Elena Orecchini
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Giada Mondanelli
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Ciriana Orabona
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Claudia Volpi
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Sabrina Adorisio
- Department of Medicine and Surgery, Foligno Nursing School, University of Perugia, Perugia, Italy
| | - Mario Calvitti
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Trinh Thi Thuy
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Domenico V Delfino
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
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120
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Correale J. Immunosuppressive Amino-Acid Catabolizing Enzymes in Multiple Sclerosis. Front Immunol 2021; 11:600428. [PMID: 33552055 PMCID: PMC7855700 DOI: 10.3389/fimmu.2020.600428] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/30/2020] [Indexed: 01/01/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease that affects the central nervous system. Although the pathogenesis of MS is not yet fully elucidated, several evidences suggest that autoimmune processes mediated by Th1, Th17, and B cells play an important role in the development of the disease. Similar to other cells, immune cells need continuous access to amino acids (AA) in order to maintain basal metabolism and maintain vitality. When immune cells are activated by inflammation or antigenic signals, their demand for AA increases rapidly. Although AA deprivation itself may weaken the immune response under certain conditions, cells also have AA sensitive pathways that can activate intense alterations in cell metabolism based on changes in AA levels. Several data indicate that cells expressing enzymes that can degrade AA can regulate the functions of antigen-presenting cells and lymphocytes, revealing that the AA pathways are essential for controlling the function, and survival of immune cells, as well as immune cell gene expression. Basal AA catabolism may contribute to immune homeostasis and prevent autoimmunity, while increased AA catalytic activity may enhance immune suppression. In addition, there is increasing evidence that some downstream AA metabolites are important biological mediators of autoimmune response regulation. Two of the most important AA that modulate the immune response are L-Tryptophan (Trp) and L-Arginine (Arg). Tryptophan is catabolized through 2,3-dioxygenase (TDO) and indoleamine 2,3-dioxygenase (IDO) 1 and IDO2 enzymes, while three other enzymes catabolize Arg: inducible nitric oxide synthetase (iNOS), and two arginase isoforms (ARG1, ARG2). Genes encoding IDO, iNOS and ARG are induced by inflammatory cues such as cytokines, a key feature that distinguishes them from enzymes that catabolize other AA. Evidence suggests that AA catabolism is decreased in MS patients and that this decrease has functional consequences, increasing pro-inflammatory cytokines and decreasing Treg cell numbers. These effects are mediated by at least two distinct pathways involving serine/threonine kinases: the general control nonderepressible 2 kinase (GCN2K) pathway; and the mammalian target of rapamycin (mTOR) pathway. Similarly, IDO1-deficient mice showed exacerbation of experimental autoimmune encephalomyelitis (EAE), increased Th1 and Th17 cells, and decreased Treg cells. On the contrary, the administration of downstream Trp metabolite 3-HAA, inhibits Th1/Th17 effector cells and promotes Treg response by up-regulating TGF-β production by dendritic cells, thereby improving EAE. Collectively, these observations stand out the significance of AA catabolism in the regulation of the immune responses in MS patients. The molecules related to these pathways deserve further exploration as potential new therapeutic targets in MS.
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121
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Adamo A, Frusteri C, Pallotta MT, Pirali T, Sartoris S, Ugel S. Moonlighting Proteins Are Important Players in Cancer Immunology. Front Immunol 2021; 11:613069. [PMID: 33584695 PMCID: PMC7873856 DOI: 10.3389/fimmu.2020.613069] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/30/2020] [Indexed: 12/21/2022] Open
Abstract
Plasticity and adaptation to environmental stress are the main features that tumor and immune system share. Except for intrinsic and high-defined properties, cancer and immune cells need to overcome the opponent's defenses by activating more effective signaling networks, based on common elements such as transcriptional factors, protein-based complexes and receptors. Interestingly, growing evidence point to an increasing number of proteins capable of performing diverse and unpredictable functions. These multifunctional proteins are defined as moonlighting proteins. During cancer progression, several moonlighting proteins are involved in promoting an immunosuppressive microenvironment by reprogramming immune cells to support tumor growth and metastatic spread. Conversely, other moonlighting proteins support tumor antigen presentation and lymphocytes activation, leading to several anti-cancer immunological responses. In this light, moonlighting proteins could be used as promising new potential targets for improving current cancer therapies. In this review, we describe in details 12 unprecedented moonlighting proteins that during cancer progression play a decisive role in guiding cancer-associated immunomodulation by shaping innate or adaptive immune response.
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Affiliation(s)
- Annalisa Adamo
- Section of Immunology, Department of Medicine, University of Verona, Verona, Italy
| | - Cristina Frusteri
- Section of Immunology, Department of Medicine, University of Verona, Verona, Italy
| | | | - Tracey Pirali
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy
| | - Silvia Sartoris
- Section of Immunology, Department of Medicine, University of Verona, Verona, Italy
| | - Stefano Ugel
- Section of Immunology, Department of Medicine, University of Verona, Verona, Italy
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122
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Wei Z, Liu X, Cheng C, Yu W, Yi P. Metabolism of Amino Acids in Cancer. Front Cell Dev Biol 2021; 8:603837. [PMID: 33511116 PMCID: PMC7835483 DOI: 10.3389/fcell.2020.603837] [Citation(s) in RCA: 171] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/30/2020] [Indexed: 12/13/2022] Open
Abstract
Metabolic reprogramming has been widely recognized as a hallmark of malignancy. The uptake and metabolism of amino acids are aberrantly upregulated in many cancers that display addiction to particular amino acids. Amino acids facilitate the survival and proliferation of cancer cells under genotoxic, oxidative, and nutritional stress. Thus, targeting amino acid metabolism is becoming a potential therapeutic strategy for cancer patients. In this review, we will systematically summarize the recent progress of amino acid metabolism in malignancy and discuss their interconnection with mammalian target of rapamycin complex 1 (mTORC1) signaling, epigenetic modification, tumor growth and immunity, and ferroptosis. Finally, we will highlight the potential therapeutic applications.
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Affiliation(s)
- Zhen Wei
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan, China
| | - Xiaoyi Liu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chunming Cheng
- Department of Radiation Oncology, James Comprehensive Cancer Center and College of Medicine at The Ohio State University, Columbus, OH, United States
| | - Wei Yu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ping Yi
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
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123
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Armitage JD, Newnes HV, McDonnell A, Bosco A, Waithman J. Fine-Tuning the Tumour Microenvironment: Current Perspectives on the Mechanisms of Tumour Immunosuppression. Cells 2021; 10:cells10010056. [PMID: 33401460 PMCID: PMC7823446 DOI: 10.3390/cells10010056] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 02/07/2023] Open
Abstract
Immunotherapy has revolutionised the treatment of cancers by harnessing the power of the immune system to eradicate malignant tissue. However, it is well recognised that some cancers are highly resistant to these therapies, which is in part attributed to the immunosuppressive landscape of the tumour microenvironment (TME). The contexture of the TME is highly heterogeneous and contains a complex architecture of immune, stromal, vascular and tumour cells in addition to acellular components such as the extracellular matrix. While understanding the dynamics of the TME has been instrumental in predicting durable responses to immunotherapy and developing new treatment strategies, recent evidence challenges the fundamental paradigms of how tumours can effectively subvert immunosurveillance. Here, we discuss the various immunosuppressive features of the TME and how fine-tuning these mechanisms, rather than ablating them completely, may result in a more comprehensive and balanced anti-tumour response.
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Affiliation(s)
- Jesse D. Armitage
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA 6009, Australia; (J.D.A.); (H.V.N.); (A.M.)
| | - Hannah V. Newnes
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA 6009, Australia; (J.D.A.); (H.V.N.); (A.M.)
| | - Alison McDonnell
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA 6009, Australia; (J.D.A.); (H.V.N.); (A.M.)
- National Centre for Asbestos Related Diseases, QEII Medical Centre, The University of Western Australia, Nedlands, WA 6009, Australia
| | - Anthony Bosco
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA 6009, Australia; (J.D.A.); (H.V.N.); (A.M.)
- Correspondence: (A.B.); (J.W.)
| | - Jason Waithman
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA 6009, Australia; (J.D.A.); (H.V.N.); (A.M.)
- Correspondence: (A.B.); (J.W.)
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124
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Barouni RM, Musiu C, Bronte V, Ugel S, Canè S. Phenotypical Characterization and Isolation of Tumor-Derived Mouse Myeloid-Derived Suppressor Cells. Methods Mol Biol 2021; 2236:29-42. [PMID: 33237538 DOI: 10.1007/978-1-0716-1060-2_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous cell population composed of mature and immature cells of myeloid origin that play a major role in tumor progression by inhibiting the antitumor immune responses mediated by T cells. In this chapter, we describe protocols for isolation, phenotypical and functional evaluation of MDSCs isolated from mouse tumors, with the aim at unifying and standardizing protocols set up by different laboratories.
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Affiliation(s)
- Roza Maria Barouni
- Department of Medicine, Section of Immunology, University of Verona, Verona, Italy
| | - Chiara Musiu
- Department of Medicine, Section of Immunology, University of Verona, Verona, Italy
| | - Vincenzo Bronte
- Department of Medicine, Section of Immunology, University of Verona, Verona, Italy.
| | - Stefano Ugel
- Department of Medicine, Section of Immunology, University of Verona, Verona, Italy
| | - Stefania Canè
- Department of Medicine, Section of Immunology, University of Verona, Verona, Italy
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125
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Castellano F, Molinier-Frenkel V. Control of T-Cell Activation and Signaling by Amino-Acid Catabolizing Enzymes. Front Cell Dev Biol 2020; 8:613416. [PMID: 33392202 PMCID: PMC7773816 DOI: 10.3389/fcell.2020.613416] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 11/30/2020] [Indexed: 12/12/2022] Open
Abstract
Amino acids are essential for protein synthesis, epigenetic modification through the methylation of histones, and the maintenance of a controlled balance of oxidoreduction via the production of glutathione and are precursors of certain neurotransmitters. T lymphocytes are particularly sensitive to fluctuations in amino acid levels. During evolution, the production of amino-acid catabolizing enzymes by mainly antigen-presenting cells has become a physiological mechanism to control T-cell activation and polarization. The action of these enzymes interferes with TCR and co-stimulation signaling, allowing tuning of the T-cell response. These capacities can be altered in certain pathological conditions, with relevant consequences for the development of disease.
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Affiliation(s)
- Flavia Castellano
- Univ Paris Est Creteil, INSERM, IMRB, Creteil, France.,AP-HP, Hopital Henri Mondor, Departement Immunologie-Hématologie, Creteil, France
| | - Valérie Molinier-Frenkel
- Univ Paris Est Creteil, INSERM, IMRB, Creteil, France.,AP-HP, Hopital Henri Mondor, Departement Immunologie-Hématologie, Creteil, France
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126
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Lionetto L, Ulivieri M, Capi M, De Bernardini D, Fazio F, Petrucca A, Pomes LM, De Luca O, Gentile G, Casolla B, Curto M, Salerno G, Schillizzi S, Torre MS, Santino I, Rocco M, Marchetti P, Aceti A, Ricci A, Bonfini R, Nicoletti F, Simmaco M, Borro M. Increased kynurenine-to-tryptophan ratio in the serum of patients infected with SARS-CoV2: An observational cohort study. Biochim Biophys Acta Mol Basis Dis 2020; 1867:166042. [PMID: 33338598 PMCID: PMC7834629 DOI: 10.1016/j.bbadis.2020.166042] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 12/01/2020] [Accepted: 12/06/2020] [Indexed: 12/16/2022]
Abstract
Immune dysregulation is a hallmark of patients infected by SARS-CoV2 and the balance between immune reactivity and tolerance is a key determinant of all stages of infection, including the excessive inflammatory state causing the acute respiratory distress syndrome. The kynurenine pathway (KP) of tryptophan (Trp) metabolism is activated by pro-inflammatory cytokines and drives mechanisms of immune tolerance. We examined the state of activation of the KP by measuring the Kyn:Trp ratio in the serum of healthy subjects (n = 239), and SARS-CoV2-negative (n = 305) and -positive patients (n = 89). Patients were recruited at the Emergency Room of St. Andrea Hospital (Rome, Italy). Kyn and Trp serum levels were assessed by HPLC/MS-MS. Compared to healthy controls, both SARS-CoV2-negative and -positive patients showed an increase in the Kyn:Trp ratio. The increase was larger in SARS-CoV2-positive patients, with a significant difference between SARS-CoV2-positive and -negative patients. In addition, the increase was more prominent in males, and positively correlated with age and severity of SARS-CoV2 infection, categorized as follows: 1 = no need for intensive care unit (ICU); 2 ≤ 3 weeks spent in ICU; 3 ≥ 3 weeks spent in ICU; and 4 = death. The highest Kyn:Trp values were found in SARS-CoV2-positive patients with severe lymphopenia. These findings suggest that the Kyn:Trp ratio reflects the level of inflammation associated with SARS-CoV2 infection, and, therefore, might represent a valuable biomarker for therapeutic intervention.
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Affiliation(s)
- Luana Lionetto
- Laboratory of Clinical Biochemistry, Mass Spectrometry Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Martina Ulivieri
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, 1300 Morris Park Avenue, New York, NY, USA
| | - Matilde Capi
- Laboratory of Clinical Biochemistry, Mass Spectrometry Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Donatella De Bernardini
- Laboratory of Clinical Biochemistry, Mass Spectrometry Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Francesco Fazio
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, 1300 Morris Park Avenue, New York, NY, USA
| | - Andrea Petrucca
- Microbiology Unit, Sant'Andrea University Hospital, Rome, Italy; Department of Clinical and Molecular Medicine, Sapienza University, Rome, Italy
| | - Leda Marina Pomes
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Rome, Italy
| | - Ottavia De Luca
- Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Giovanna Gentile
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Rome, Italy; Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Barbara Casolla
- University of Lille, Inserm U1172, CHU Lille, Department of Neurology, Stroke Unit, Lille, France
| | - Martina Curto
- Department of Mental Health, ASL, Rome 3, Rome, Italy; International Mood & Psychotic Disorders Research Consortium, Mailman Research Center, Belmon, MA, USA
| | - Gerardo Salerno
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Rome, Italy
| | | | - Maria Simona Torre
- Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Iolanda Santino
- Microbiology Unit, Sant'Andrea University Hospital, Rome, Italy; Department of Clinical and Molecular Medicine, Sapienza University, Rome, Italy
| | - Monica Rocco
- Department of Surgical and Medical Science and Translational Medicine, Anesthesia and Intensive Care, Sapienza University, Rome, Italy
| | - Paolo Marchetti
- Department of Clinical and Molecular Medicine, Sapienza University, Rome, Italy
| | - Antonio Aceti
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Rome, Italy; Infectious disease Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Alberto Ricci
- Department of Surgical and Medical Science and Translational Medicine, Anesthesia and Intensive Care, Sapienza University, Rome, Italy; Division of Pneumology, Sant'Andrea University Hospital, Rome, Italy
| | - Rita Bonfini
- Emergency Department, Sant'Andrea University Hospital, Rome, Italy
| | - Ferdinando Nicoletti
- Department of Physiology and Pharmacology, Sapienza University, Rome, Italy; I.R.C.C.S. Neuromed, Pozzilli, Italy
| | - Maurizio Simmaco
- Laboratory of Clinical Biochemistry, Mass Spectrometry Unit, Sant'Andrea University Hospital, Rome, Italy; Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Rome, Italy; Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Marina Borro
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), Sapienza University, Rome, Italy; Laboratory of Clinical Biochemistry, Advanced Molecular Diagnostic Unit, Sant'Andrea University Hospital, Rome, Italy.
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127
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Domagala J, Lachota M, Klopotowska M, Graczyk-Jarzynka A, Domagala A, Zhylko A, Soroczynska K, Winiarska M. The Tumor Microenvironment-A Metabolic Obstacle to NK Cells' Activity. Cancers (Basel) 2020; 12:cancers12123542. [PMID: 33260925 PMCID: PMC7761432 DOI: 10.3390/cancers12123542] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023] Open
Abstract
NK cells have unique capabilities of recognition and destruction of tumor cells, without the requirement for prior immunization of the host. Maintaining tolerance to healthy cells makes them an attractive therapeutic tool for almost all types of cancer. Unfortunately, metabolic changes associated with malignant transformation and tumor progression lead to immunosuppression within the tumor microenvironment, which in turn limits the efficacy of various immunotherapies. In this review, we provide a brief description of the metabolic changes characteristic for the tumor microenvironment. Both tumor and tumor-associated cells produce and secrete factors that directly or indirectly prevent NK cell cytotoxicity. Here, we depict the molecular mechanisms responsible for the inhibition of immune effector cells by metabolic factors. Finally, we summarize the strategies to enhance NK cell function for the treatment of tumors.
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Affiliation(s)
- Joanna Domagala
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (J.D.); (A.G.-J.); (A.Z.); (K.S.)
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Mieszko Lachota
- Department of Clinical Immunology, Medical University of Warsaw, 02-006 Warsaw, Poland; (M.L.); (M.K.)
| | - Marta Klopotowska
- Department of Clinical Immunology, Medical University of Warsaw, 02-006 Warsaw, Poland; (M.L.); (M.K.)
| | - Agnieszka Graczyk-Jarzynka
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (J.D.); (A.G.-J.); (A.Z.); (K.S.)
| | - Antoni Domagala
- Institute of Medical Sciences, Collegium Medicum, Jan Kochanowski University of Kielce, 25-317 Kielce, Poland;
- Department of Urology, Holy Cross Cancer Center, 25-734 Kielce, Poland
| | - Andriy Zhylko
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (J.D.); (A.G.-J.); (A.Z.); (K.S.)
| | - Karolina Soroczynska
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (J.D.); (A.G.-J.); (A.Z.); (K.S.)
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Magdalena Winiarska
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (J.D.); (A.G.-J.); (A.Z.); (K.S.)
- Correspondence: ; Tel.: +48-225-992-199
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128
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Ko JH, Olona A, Papathanassiu AE, Buang N, Park KS, Costa ASH, Mauro C, Frezza C, Behmoaras J. BCAT1 affects mitochondrial metabolism independently of leucine transamination in activated human macrophages. J Cell Sci 2020; 133:jcs247957. [PMID: 33148611 PMCID: PMC7116427 DOI: 10.1242/jcs.247957] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 10/26/2020] [Indexed: 12/21/2022] Open
Abstract
In response to environmental stimuli, macrophages change their nutrient consumption and undergo an early metabolic adaptation that progressively shapes their polarization state. During the transient, early phase of pro-inflammatory macrophage activation, an increase in tricarboxylic acid (TCA) cycle activity has been reported, but the relative contribution of branched-chain amino acid (BCAA) leucine remains to be determined. Here, we show that glucose but not glutamine is a major contributor of the increase in TCA cycle metabolites during early macrophage activation in humans. We then show that, although uptake of BCAAs is not altered, their transamination by BCAT1 is increased following 8 h lipopolysaccharide (LPS) stimulation. Of note, leucine is not metabolized to integrate into the TCA cycle in basal or stimulated human macrophages. Surprisingly, the pharmacological inhibition of BCAT1 reduced glucose-derived itaconate, α-ketoglutarate and 2-hydroxyglutarate levels without affecting succinate and citrate levels, indicating a partial inhibition of the TCA cycle. This indirect effect is associated with NRF2 (also known as NFE2L2) activation and anti-oxidant responses. These results suggest a moonlighting role of BCAT1 through redox-mediated control of mitochondrial function during early macrophage activation.
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Affiliation(s)
- Jeong-Hun Ko
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
| | - Antoni Olona
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
| | | | - Norzawani Buang
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
| | - Kwon-Sik Park
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Ana S H Costa
- Medical Research Council Cancer Unit, University of Cambridge, Cambridge CB2 0XZ, UK
| | - Claudio Mauro
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
| | - Christian Frezza
- Medical Research Council Cancer Unit, University of Cambridge, Cambridge CB2 0XZ, UK
| | - Jacques Behmoaras
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
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129
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Iacono A, Pompa A, De Marchis F, Panfili E, Greco FA, Coletti A, Orabona C, Volpi C, Belladonna ML, Mondanelli G, Albini E, Vacca C, Gargaro M, Fallarino F, Bianchi R, De Marcos Lousa C, Mazza EM, Bicciato S, Proietti E, Milano F, Martelli MP, Iamandii IM, Graupera Garcia-Mila M, Llena Sopena J, Hawkins P, Suire S, Okkenhaug K, Stark AK, Grassi F, Bellucci M, Puccetti P, Santambrogio L, Macchiarulo A, Grohmann U, Pallotta MT. Class IA PI3Ks regulate subcellular and functional dynamics of IDO1. EMBO Rep 2020; 21:e49756. [PMID: 33159421 DOI: 10.15252/embr.201949756] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 09/28/2020] [Accepted: 10/05/2020] [Indexed: 12/12/2022] Open
Abstract
Knowledge of a protein's spatial dynamics at the subcellular level is key to understanding its function(s), interactions, and associated intracellular events. Indoleamine 2,3-dioxygenase 1 (IDO1) is a cytosolic enzyme that controls immune responses via tryptophan metabolism, mainly through its enzymic activity. When phosphorylated, however, IDO1 acts as a signaling molecule in plasmacytoid dendritic cells (pDCs), thus activating genomic effects, ultimately leading to long-lasting immunosuppression. Whether the two activities-namely, the catalytic and signaling functions-are spatially segregated has been unclear. We found that, under conditions favoring signaling rather than catabolic events, IDO1 shifts from the cytosol to early endosomes. The event requires interaction with class IA phosphoinositide 3-kinases (PI3Ks), which become activated, resulting in full expression of the immunoregulatory phenotype in vivo in pDCs as resulting from IDO1-dependent signaling events. Thus, IDO1's spatial dynamics meet the needs for short-acting as well as durable mechanisms of immune suppression, both under acute and chronic inflammatory conditions. These data expand the theoretical basis for an IDO1-centered therapy in inflammation and autoimmunity.
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Affiliation(s)
- Alberta Iacono
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Andrea Pompa
- Department of Biomolecular Sciences, University Carlo Bo, Urbino, Italy.,Institute of Biosciences and Bioresources, National Research Council of Italy, Perugia, Italy
| | - Francesca De Marchis
- Institute of Biosciences and Bioresources, National Research Council of Italy, Perugia, Italy
| | - Eleonora Panfili
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Francesco A Greco
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Alice Coletti
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Ciriana Orabona
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Claudia Volpi
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Maria L Belladonna
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | | | - Elisa Albini
- Department of Experimental Medicine, University of Perugia, Perugia, Italy.,Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Carmine Vacca
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Marco Gargaro
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | | | - Roberta Bianchi
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Carine De Marcos Lousa
- Centre for Biomedical Sciences, School of Clinical and Applied Sciences, Leeds Beckett University, Leeds, UK.,Center for Plant Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | | | - Silvio Bicciato
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Elisa Proietti
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | | | | | - Ioana M Iamandii
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | | | - Judith Llena Sopena
- Bellvitge Biomedical Research Institute (IDIBELL), Hospitalet de Llobregat, Spain
| | | | | | - Klaus Okkenhaug
- Department of Pathology, University of Cambridge, Cambridge, UK
| | | | - Fabio Grassi
- Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - Michele Bellucci
- Institute of Biosciences and Bioresources, National Research Council of Italy, Perugia, Italy
| | - Paolo Puccetti
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Laura Santambrogio
- Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Antonio Macchiarulo
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Ursula Grohmann
- Department of Experimental Medicine, University of Perugia, Perugia, Italy.,Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Maria T Pallotta
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
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130
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Methe K, Nayakawde NB, Banerjee D, Sihlbom C, Agbajogu C, Travnikova G, Olausson M. Differential Activation of Immune Cells for Genetically Different Decellularized Cardiac Tissues. Tissue Eng Part A 2020; 26:1180-1198. [DOI: 10.1089/ten.tea.2020.0055] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Ketaki Methe
- Laboratory for Transplantation and Regenerative Medicine, Gothenburg University, Gothenburg, Sweden
| | - Nikhil B. Nayakawde
- Laboratory for Transplantation and Regenerative Medicine, Gothenburg University, Gothenburg, Sweden
| | - Debashish Banerjee
- Laboratory for Transplantation and Regenerative Medicine, Gothenburg University, Gothenburg, Sweden
| | - Carina Sihlbom
- Proteomics Core Facility, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | | | - Galyna Travnikova
- Laboratory for Transplantation and Regenerative Medicine, Gothenburg University, Gothenburg, Sweden
| | - Michael Olausson
- Laboratory for Transplantation and Regenerative Medicine, Gothenburg University, Gothenburg, Sweden
- Department of Transplantation Surgery at Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
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131
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Proietti E, Rossini S, Grohmann U, Mondanelli G. Polyamines and Kynurenines at the Intersection of Immune Modulation. Trends Immunol 2020; 41:1037-1050. [PMID: 33055013 DOI: 10.1016/j.it.2020.09.007] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 12/15/2022]
Abstract
Polyamines (i.e., putrescine, spermidine, and spermine) are bioactive polycations capable of binding nucleic acids and proteins and modulating signaling pathways. Polyamine functions have been studied most extensively in tumors, where they can promote cell transformation and proliferation. Recently, spermidine was found to exert protective effects in an experimental model of multiple sclerosis (MS) and to confer immunoregulatory properties on dendritic cells (DCs), via the indoleamine 2,3-dioxygenase 1 (IDO1) enzyme. IDO1 converts l-tryptophan into metabolites, collectively known as kynurenines, endowed with several immunoregulatory effects via activation of the arylhydrocarbon receptor (AhR). Because AhR activation increases polyamine production, the emerging scenario has identified polyamines and kynurenines as actors of an immunoregulatory circuitry with potential implications for immunotherapy in autoimmune diseases and cancer.
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Affiliation(s)
- Elisa Proietti
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy
| | - Sofia Rossini
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy
| | - Ursula Grohmann
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy.
| | - Giada Mondanelli
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy.
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132
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Strauss L, Mahmoud MAA, Weaver JD, Tijaro-Ovalle NM, Christofides A, Wang Q, Pal R, Yuan M, Asara J, Patsoukis N, Boussiotis VA. Targeted deletion of PD-1 in myeloid cells induces antitumor immunity. Sci Immunol 2020; 5:5/43/eaay1863. [PMID: 31901074 DOI: 10.1126/sciimmunol.aay1863] [Citation(s) in RCA: 281] [Impact Index Per Article: 70.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 11/13/2019] [Indexed: 12/15/2022]
Abstract
PD-1, a T cell checkpoint receptor and target of cancer immunotherapy, is also expressed on myeloid cells. The role of myeloid-specific versus T cell-specific PD-1 ablation on antitumor immunity has remained unclear because most studies have used either PD-1-blocking antibodies or complete PD-1 KO mice. We generated a conditional allele, which allowed myeloid-specific (PD-1f/fLysMcre) or T cell-specific (PD-1f/fCD4cre) targeting of Pdcd1 gene. Compared with T cell-specific PD-1 ablation, myeloid cell-specific PD-1 ablation more effectively decreased tumor growth. We found that granulocyte/macrophage progenitors (GMPs), which accumulate during cancer-driven emergency myelopoiesis and give rise to myeloid-derived suppressor cells (MDSCs), express PD-1. In tumor-bearing PD-1f/fLysMcre but not PD-1f/fCD4cre mice, accumulation of GMP and MDSC was prevented, whereas systemic output of effector myeloid cells was increased. Myeloid cell-specific PD-1 ablation induced an increase of T effector memory cells with improved functionality and mediated antitumor protection despite preserved PD-1 expression in T cells. In PD-1-deficient myeloid progenitors, growth factors driving emergency myelopoiesis induced increased metabolic intermediates of glycolysis, pentose phosphate pathway, and TCA cycle but, most prominently, elevated cholesterol. Because cholesterol is required for differentiation of inflammatory macrophages and DC and promotes antigen-presenting function, our findings indicate that metabolic reprogramming of emergency myelopoiesis and differentiation of effector myeloid cells might be a key mechanism of antitumor immunity mediated by PD-1 blockade.
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Affiliation(s)
- Laura Strauss
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Mohamed A A Mahmoud
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Jessica D Weaver
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Natalia M Tijaro-Ovalle
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Anthos Christofides
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Qi Wang
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Rinku Pal
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Min Yuan
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - John Asara
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Nikolaos Patsoukis
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Vassiliki A Boussiotis
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA. .,Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.,Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
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133
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Rogovskii V. Immune Tolerance as the Physiologic Counterpart of Chronic Inflammation. Front Immunol 2020; 11:2061. [PMID: 33117330 PMCID: PMC7561427 DOI: 10.3389/fimmu.2020.02061] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/29/2020] [Indexed: 12/13/2022] Open
Affiliation(s)
- Vladimir Rogovskii
- Department of Molecular Pharmacology and Radiobiology, Pirogov Russian National Research Medical University, Moscow, Russia.,Department of Neuroimmunology, Federal Center of Brain Research and Neurotechnologies, Moscow, Russia
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134
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Effects of Lactobacillus casei Strain T2 (IBRC-M10783) on the Modulation of Th17/Treg and Evaluation of miR-155, miR-25, and IDO-1 Expression in a Cuprizone-Induced C57BL/6 Mouse Model of Demyelination. Inflammation 2020; 44:334-343. [PMID: 32914363 DOI: 10.1007/s10753-020-01339-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/19/2020] [Accepted: 09/03/2020] [Indexed: 12/15/2022]
Abstract
Multiple sclerosis (MS) is a complex inflammatory disease in which demyelination occurs in the central nervous system affecting approximately 2.5 million people worldwide. Recent reports have shown that the gut microbiome plays a crucial role in the functioning of the immune system in inflammatory diseases such as MS. In this study, the cuprizone-induced demyelination mouse model was used to investigate the effect of Lactobacillus casei strain T2 (IBRC-M10783) on the alleviation of these mice. Female C57BL/6 mice (8-10 weeks old) were divided into 6 groups: group 1, normal control; group 2, cuprizone control (oral administration of cuprizone 0.2% w/w for 4 weeks); group 3, probiotic control (oral administration of 1 × 109 CFU/ml probiotic for 4 weeks); group 4, treatment 1 (probiotic for 4 weeks then cuprizone for 4 weeks); group 5, treatment 2 (cuprizone for 4 weeks then probiotic for 4 weeks); and group 6, treatment 3 (cuprizone for 4 weeks then probiotic for 4 weeks with vitamin D3 at a dose of 20 IU/day). Then, TGF-β and IL-17 were measured by ELISA, and the expression of miR-155, miR-25, and IDO-1 was evaluated by real-time PCR. Among the measured microRNAs, the results showed that there was a significant decrease in miR-155 expression between the treatment 1 group and the cuprizone group. In the case of IL-17, the results also showed a significant reduction between the three treatment groups and the cuprizone group. These observations suggest that L. casei can reduce proinflammatory cytokines and reduce demyelinating symptoms in the mouse model.
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135
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Pessenda G, da Silva JS. Arginase and its mechanisms in Leishmania persistence. Parasite Immunol 2020; 42:e12722. [PMID: 32294247 DOI: 10.1111/pim.12722] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/14/2020] [Accepted: 04/07/2020] [Indexed: 12/12/2022]
Abstract
Leishmaniasis is a neglected infectious disease with clinical presentations ranging from asymptomatic or mild symptoms to chronic infection and eventual death. The mechanisms of disease susceptibility and pathology have been extensively studied, but there are no steadfast rules regarding leishmaniasis. A Th1 response is usually associated with infection control, while a predominant Th2 response is detrimental to the patient. In this scenario, the enzymes arginase and inducible nitric oxide synthase represent two possible pathways of immune response. While the former contributes to parasite replication, the latter is crucial for its control. In the present review, we collected study results that associate arginase expression in patients and in experimental models with disease susceptibility/chronicity and show some proposed mechanisms that explain the role of arginase in maintaining Leishmania infection, including polyamine and thiol synthesis, tissue-resident macrophage (TRM) proliferation and activation and T-cell suppression and exhaustion.
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Affiliation(s)
- Gabriela Pessenda
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - João Santana da Silva
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,Fundação Oswaldo Cruz Bi-institucional, Ribeirão Preto, Brazil
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136
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Kelly B, Pearce EL. Amino Assets: How Amino Acids Support Immunity. Cell Metab 2020; 32:154-175. [PMID: 32649859 DOI: 10.1016/j.cmet.2020.06.010] [Citation(s) in RCA: 230] [Impact Index Per Article: 57.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/06/2020] [Accepted: 06/15/2020] [Indexed: 12/18/2022]
Abstract
Amino acids are fundamental building blocks supporting life. Their role in protein synthesis is well defined, but they contribute to a host of other intracellular metabolic pathways, including ATP generation, nucleotide synthesis, and redox balance, to support cellular and organismal function. Immune cells critically depend on such pathways to acquire energy and biomass and to reprogram their metabolism upon activation to support growth, proliferation, and effector functions. Amino acid metabolism plays a key role in this metabolic rewiring, and it supports various immune cell functions beyond increased protein synthesis. Here, we review the mechanisms by which amino acid metabolism promotes immune cell function, and how these processes could be targeted to improve immunity in pathological conditions.
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Affiliation(s)
- Beth Kelly
- Max Planck Institute for Immunobiology and Epigenetics, Freiburg 79108, Germany
| | - Erika L Pearce
- Max Planck Institute for Immunobiology and Epigenetics, Freiburg 79108, Germany.
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137
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Alexander ET, Mariner K, Donnelly J, Phanstiel O, Gilmour SK. Polyamine Blocking Therapy Decreases Survival of Tumor-Infiltrating Immunosuppressive Myeloid Cells and Enhances the Antitumor Efficacy of PD-1 Blockade. Mol Cancer Ther 2020; 19:2012-2022. [PMID: 32747421 DOI: 10.1158/1535-7163.mct-19-1116] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 05/12/2020] [Accepted: 07/16/2020] [Indexed: 12/21/2022]
Abstract
Despite unprecedented advances in the treatment of cancer through the use of immune checkpoint blockade (ICB), responses are not universal and alternative strategies are needed to enhance responses to ICB. We have shown previously that a novel polyamine blocking therapy (PBT), consisting of cotreatment with α-difluoromethylornithine (DFMO) to block polyamine biosynthesis and a Trimer polyamine transport inhibitor, decreases myeloid-derived suppressor cells (MDSC) and M2-like tumor-associated macrophages (TAM). Both MDSCs and TAMs promote tumor progression, inhibit antitumor immunity, and limit the efficacy of ICB. In this study, we investigated the use of PBT to heighten therapeutic responses to PD-1 blockade in mice bearing 4T1 mammary carcinoma and B16F10 melanoma tumors. Whereas PBT inhibited primary tumor growth in both tumor models, 4T1 lung metastases were also dramatically decreased in mice treated with PBT. Reductions in MDSC and TAM subpopulations in 4T1 tumors from PBT-treated mice were accompanied by reduced cytoprotective autophagy only in tumor-infiltrating MDSC and macrophage subpopulations but not in the lung or spleen. PBT treatment blunted M2-like alternative activation of bone marrow-derived macrophages and reduced STAT3 activation in MDSC cultures while increasing the differentiation of CD80+, CD11c+ macrophages. PBT significantly enhanced the antitumor efficacy of PD-1 blockade in both 4T1 and B16F10 tumors resistant to anti-PD-1 monotherapy, increasing tumor-specific cytotoxic T cells and survival of tumor-bearing animals beyond that with PBT or PD-1 blockade alone. Our results suggest that cotreatment with DFMO and the Trimer polyamine transport inhibitor may improve the therapeutic efficacy of immunotherapies in patients with cancer with resistant tumors.
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Affiliation(s)
- Eric T Alexander
- Lankenau Institute for Medical Research, Wynnewood, Pennsylvania
| | - Kelsey Mariner
- Lankenau Institute for Medical Research, Wynnewood, Pennsylvania
| | - Julia Donnelly
- Lankenau Institute for Medical Research, Wynnewood, Pennsylvania
| | - Otto Phanstiel
- University of Central Florida, Department of Medical Education, College of Medicine, Orlando, Florida
| | - Susan K Gilmour
- Lankenau Institute for Medical Research, Wynnewood, Pennsylvania.
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138
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Stancioiu F, Papadakis GZ, Kteniadakis S, Izotov BN, Coleman MD, Spandidos DA, Tsatsakis A. A dissection of SARS‑CoV2 with clinical implications (Review). Int J Mol Med 2020; 46:489-508. [PMID: 32626922 PMCID: PMC7307812 DOI: 10.3892/ijmm.2020.4636] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 06/09/2020] [Indexed: 02/06/2023] Open
Abstract
We are being confronted with the most consequential pandemic since the Spanish flu of 1918‑1920 to the extent that never before have 4 billion people quarantined simultaneously; to address this global challenge we bring to the forefront the options for medical treatment and summarize SARS‑CoV2 structure and functions, immune responses and known treatments. Based on literature and our own experience we propose new interventions, including the use of amiodarone, simvastatin, pioglitazone and curcumin. In mild infections (sore throat, cough) we advocate prompt local treatment for the naso‑pharynx (inhalations; aerosols; nebulizers); for moderate to severe infections we propose a tried‑and‑true treatment: the combination of arginine and ascorbate, administered orally or intravenously. The material is organized in three sections: i) Clinical aspects of COVID‑19; acute respiratory distress syndrome (ARDS); known treatments; ii) Structure and functions of SARS‑CoV2 and proposed antiviral drugs; iii) The combination of arginine‑ascorbate.
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Affiliation(s)
| | | | | | - Boris Nikovaevich Izotov
- Department of Analytical and Forensic Medical Toxicology, Sechenov University, 119991 Moscow, Russia
| | - Michael D. Coleman
- School of Life and Health Sciences, Aston University, B4 7ET Birmingham, UK
| | | | - Aristidis Tsatsakis
- Department of Analytical and Forensic Medical Toxicology, Sechenov University, 119991 Moscow, Russia
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, 71003 Heraklion, Greece
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139
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Thomas T, Stefanoni D, Reisz JA, Nemkov T, Bertolone L, Francis RO, Hudson KE, Zimring JC, Hansen KC, Hod EA, Spitalnik SL, D’Alessandro A. COVID-19 infection alters kynurenine and fatty acid metabolism, correlating with IL-6 levels and renal status. JCI Insight 2020; 5:140327. [PMID: 32559180 PMCID: PMC7453907 DOI: 10.1172/jci.insight.140327] [Citation(s) in RCA: 361] [Impact Index Per Article: 90.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 06/17/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUNDReprogramming of host metabolism supports viral pathogenesis by fueling viral proliferation, by providing, for example, free amino acids and fatty acids as building blocks.METHODSTo investigate metabolic effects of SARS-CoV-2 infection, we evaluated serum metabolites of patients with COVID-19 (n = 33; diagnosed by nucleic acid testing), as compared with COVID-19-negative controls (n = 16).RESULTSTargeted and untargeted metabolomics analyses identified altered tryptophan metabolism into the kynurenine pathway, which regulates inflammation and immunity. Indeed, these changes in tryptophan metabolism correlated with interleukin-6 (IL-6) levels. Widespread dysregulation of nitrogen metabolism was also seen in infected patients, with altered levels of most amino acids, along with increased markers of oxidant stress (e.g., methionine sulfoxide, cystine), proteolysis, and renal dysfunction (e.g., creatine, creatinine, polyamines). Increased circulating levels of glucose and free fatty acids were also observed, consistent with altered carbon homeostasis. Interestingly, metabolite levels in these pathways correlated with clinical laboratory markers of inflammation (i.e., IL-6 and C-reactive protein) and renal function (i.e., blood urea nitrogen).CONCLUSIONIn conclusion, this initial observational study identified amino acid and fatty acid metabolism as correlates of COVID-19, providing mechanistic insights, potential markers of clinical severity, and potential therapeutic targets.FUNDINGBoettcher Foundation Webb-Waring Biomedical Research Award; National Institute of General and Medical Sciences, NIH; and National Heart, Lung, and Blood Institute, NIH.
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Affiliation(s)
- Tiffany Thomas
- Department of Pathology and Cell Biology, Columbia University, New York, New York, USA
| | - Davide Stefanoni
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado, USA
| | - Julie A. Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado, USA
| | - Travis Nemkov
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lorenzo Bertolone
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado, USA
| | - Richard O. Francis
- Department of Pathology and Cell Biology, Columbia University, New York, New York, USA
| | - Krystalyn E. Hudson
- Department of Pathology and Cell Biology, Columbia University, New York, New York, USA
| | - James C. Zimring
- Department of Pathology, University of Virginia, Charlottesville, Virginia, USA
| | - Kirk C. Hansen
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado, USA
| | - Eldad A. Hod
- Department of Pathology and Cell Biology, Columbia University, New York, New York, USA
| | - Steven L. Spitalnik
- Department of Pathology and Cell Biology, Columbia University, New York, New York, USA
| | - Angelo D’Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, Colorado, USA
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140
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Mondanelli G, Di Battista V, Pellanera F, Mammoli A, Macchiarulo A, Gargaro M, Mavridou E, Matteucci C, Ruggeri L, Orabona C, Volpi C, Grohmann U, Mecucci C. A novel mutation of indoleamine 2,3-dioxygenase 1 causes a rapid proteasomal degradation and compromises protein function. J Autoimmun 2020; 115:102509. [PMID: 32605792 DOI: 10.1016/j.jaut.2020.102509] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/17/2020] [Accepted: 06/17/2020] [Indexed: 12/31/2022]
Abstract
Indoleamine 2,3-dioxygenase 1 (IDO1) - the enzyme catalyzing the rate-limiting step of tryptophan catabolism along the kynurenine pathway - belongs to the class of inhibitory immune checkpoint molecules. Such regulators of the immune system are crucial for maintaining self-tolerance and thus, when properly working, preventing autoimmunity. A dysfunctional IDO1 has recently been associated with a specific single nucleotide polymorphism (SNP) and with the occurrence of autoimmune diabetes and multiple sclerosis. Many genetic alterations of IDO1 have been proposed being related with dysimmune disorders. However, the molecular and functional meaning of variations in IDO1 exomes as well as the promoter region remains a poorly explored field. In the present study, we identified a rare missense variant (rs751360195) at the IDO1 gene in a patient affected by coeliac disease, thyroiditis, and selective immunoglobulin A deficiency. Molecular and functional studies demonstrated that the substitution of lysine (K) at position 257 with a glutamic acid (E) results in an altered IDO1 protein that undergoes a rapid protein turnover. This genotype-to-phenotype relation is produced by peripheral blood mononuclear cells (PBMCs) of the patient bearing this variation and is associated with a specific phenotype (i.e., impaired tryptophan catabolism and defective mechanisms of immune tolerance). Thus decoding functional mutations of the IDO1 exome may provide clinically relevant information exploitable to personalize therapeutic interventions.
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Affiliation(s)
| | | | | | - Andrea Mammoli
- Pharmaceutical Sciences, University of Perugia, Perugia, Italy
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141
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Shi R, Tang Y, Miao H. Metabolism in tumor microenvironment: Implications for cancer immunotherapy. MedComm (Beijing) 2020; 1:47-68. [PMID: 34766109 PMCID: PMC8489668 DOI: 10.1002/mco2.6] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 12/12/2022] Open
Abstract
Tumor microenvironment is a special environment for tumor survival, which is characterized by hypoxia, acidity, nutrient deficiency, and immunosuppression. The environment consists of the vasculature, immune cells, extracellular matrix, and proteins or metabolic molecules. A large number of recent studies have shown that not only tumor cells but also the immune cells in the tumor microenvironment have undergone metabolic reprogramming, which is closely related to tumor drug resistance and malignant progression. Tumor immunotherapy based on T cells gives patients new hope, but faces the dilemma of low response rate. New strategies sensitizing cancer immunotherapy are urgently needed. Metabolic reprogramming can directly affect the biological activity of tumor cells and also regulate the differentiation and activation of immune cells. The authors aim to review the characteristics of tumor microenvironment, the metabolic changes of tumor‐associated immune cells, and the regulatory role of metabolic reprogramming in cancer immunotherapy.
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Affiliation(s)
- Rongchen Shi
- Department of Biochemistry and Molecular BiologyThird Military Medical University (Army Medical University) Chongqing People's Republic of China
| | - Yi‐Quan Tang
- MRC Laboratory of Molecular BiologyCambridge Biomedical Campus Cambridge UK
| | - Hongming Miao
- Department of Biochemistry and Molecular BiologyThird Military Medical University (Army Medical University) Chongqing People's Republic of China
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142
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Gong L, Yu L, Gong X, Wang C, Hu N, Dai X, Peng C, Li Y. Exploration of anti-inflammatory mechanism of forsythiaside A and forsythiaside B in CuSO 4-induced inflammation in zebrafish by metabolomic and proteomic analyses. J Neuroinflammation 2020; 17:173. [PMID: 32493433 PMCID: PMC7271515 DOI: 10.1186/s12974-020-01855-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 05/25/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Inflammation is a general pathological phenomenon during severe disturbances to the homeostasis. Forsythiaside A (FA) and forsythiaside B (FB), isolated from the dried fruit of Forsythia suspensa (Thunb.) Vahl, are phenylethanoid compounds that show a significant anti-inflammatory effect. However, the properties and therapeutic mechanisms of this effect have not yet been systematically elucidated. METHODS In this study, the anti-inflammatory effects of FA and FB were investigated in CuSO4-induced inflammation in zebrafish larvae. Intracellular generation of reactive oxygen species (ROS) and nitric oxide (NO) was investigated using fluorescence probes. Metabolomic and proteomic analyses using liquid chromatography-mass spectrometry were carried out to identify the expressions of metabolites and proteins associated with the anti-inflammatory mechanism of FA and FB. Quantitative polymerase chain reaction (PCR) was performed to detect the progressive changes in gene expression. RESULTS FA and FB inhibited neutrophils migration to the damaged neuromasts and remarkably reduced CuSO4-induced ROS and NO generation in zebrafish larvae. Metabolomic analysis pointed to the involvement of nicotinate and nicotinamide metabolism, energy metabolism, pyrimidine metabolism, and purine metabolism. Proteomic analysis identified 146 differentially expressed proteins between the control and model groups. These included collagen [collagen type II alpha 1b precursor (col2a1b), collagen alpha-2(IX) chain precursor (col9a2), collagen type IX alpha I precursor (col9a1b)], nucleoside diphosphate kinase 3 isoform X1 (Nme3), WD repeat-containing protein 3 (Wdr3), and 28S ribosomal protein S7 mitochondrial precursor (Mrps7). FA and FB were shown to reverse the abnormal expressions of potential metabolite and protein biomarkers and alleviate CuSO4-induced damage to the neuromasts in the zebrafish lateral line. CONCLUSIONS Our results indicate that FA and FB possess remarkable anti-inflammatory properties, protecting against CuSO4-induced neuromasts damage in zebrafish larvae. The results also suggest a multi-component and multi-regulatory therapeutic mechanism for FA and FB.
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Affiliation(s)
- Lihong Gong
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Linyuan Yu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Xiaohong Gong
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Cheng Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Naihua Hu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Xuyang Dai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Cheng Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China.
| | - Yunxia Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China.
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143
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Weis-Banke SE, Hübbe ML, Holmström MO, Jørgensen MA, Bendtsen SK, Martinenaite E, Carretta M, Svane IM, Ødum N, Pedersen AW, Met Ö, Madsen DH, Andersen MH. The metabolic enzyme arginase-2 is a potential target for novel immune modulatory vaccines. Oncoimmunology 2020; 9:1771142. [PMID: 32923127 PMCID: PMC7458644 DOI: 10.1080/2162402x.2020.1771142] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
One way that tumors evade immune destruction is through tumor and stromal cell expression of arginine-degrading enzyme arginase-2 (ARG2). Here we describe the existence of pro-inflammatory effector T-cells that recognize ARG2 and can directly target tumor and tumor-infiltrating cells. Using a library of 34 peptides covering the entire ARG2 sequence, we examined reactivity toward these peptides in peripheral blood mononuclear cells from cancer patients and healthy individuals. Interferon-γ ELISPOT revealed frequent immune responses against several of the peptides, indicating that ARG2–specific self-reactive T-cells are natural components of the human T-cell repertoire. Based on this, the most immunogenic ARG2 protein region was further characterized. By identifying conditions in the microenvironment that induce ARG2 expression in myeloid cells, we showed that ARG2-specific CD4T-cells isolated and expanded from a peripheral pool from a prostate cancer patient could recognize target cells in an ARG2-dependent manner. In the ‘cold’ in vivo tumor model Lewis lung carcinoma, we found that activation of ARG2-specific T-cells by vaccination significantly inhibited tumor growth. Immune-modulatory vaccines targeting ARG2 thus are a candidate strategy for cancer immunotherapy.
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Affiliation(s)
- Stine Emilie Weis-Banke
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Mie Linder Hübbe
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Morten Orebo Holmström
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Mia Aaboe Jørgensen
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Simone Kloch Bendtsen
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Evelina Martinenaite
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark.,IO Biotech ApS, Copenhagen, Denmark
| | - Marco Carretta
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Inge Marie Svane
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Niels Ødum
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | | | - Özcan Met
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Daniel Hargbøl Madsen
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Mads Hald Andersen
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark.,IO Biotech ApS, Copenhagen, Denmark.,Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
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144
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Ramalho R, Rao M, Zhang C, Agrati C, Ippolito G, Wang FS, Zumla A, Maeurer M. Immunometabolism: new insights and lessons from antigen-directed cellular immune responses. Semin Immunopathol 2020; 42:279-313. [PMID: 32519148 PMCID: PMC7282544 DOI: 10.1007/s00281-020-00798-w] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/02/2020] [Indexed: 02/06/2023]
Abstract
Modulation of immune responses by nutrients is an important area of study in cellular biology and clinical sciences in the context of cancer therapies and anti-pathogen-directed immune responses in health and disease. We review metabolic pathways that influence immune cell function and cellular persistence in chronic infections. We also highlight the role of nutrients in altering the tissue microenvironment with lessons from the tumor microenvironment that shapes the quality and quantity of cellular immune responses. Multiple layers of biological networks, including the nature of nutritional supplements, the genetic background, previous exposures, and gut microbiota status have impact on cellular performance and immune competence against molecularly defined targets. We discuss how immune metabolism determines the differentiation pathway of antigen-specific immune cells and how these insights can be explored to devise better strategies to strengthen anti-pathogen-directed immune responses, while curbing unwanted, non-productive inflammation.
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Affiliation(s)
- Renata Ramalho
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM, U4585 FCT), Applied Nutrition Studies Group G.E.N.A.-IUEM), Instituto Universitário Egas Moniz, Egas Moniz Higher Education School, Monte de Caparica, Portugal
| | - Martin Rao
- ImmunoSurgery Unit, Champalimaud Centre for the Unknown, Lisbon, Portugal
| | - Chao Zhang
- Treatment and Research Center for Infectious Diseases, The Fifth Medical Center of PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | | | | | - Fu-Sheng Wang
- Treatment and Research Center for Infectious Diseases, The Fifth Medical Center of PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Alimuddin Zumla
- Division of Infection and Immunity, University College London and NIHR Biomedical Research Centre, UCL Hospitals NHS Foundation Trust, London, UK
| | - Markus Maeurer
- ImmunoSurgery Unit, Champalimaud Centre for the Unknown, Lisbon, Portugal.
- I Medizinische Klinik, Johannes Gutenberg University Mainz, Mainz, Germany.
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145
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Fan J, Feng Z, Chen N. Spermidine as a target for cancer therapy. Pharmacol Res 2020; 159:104943. [PMID: 32461185 DOI: 10.1016/j.phrs.2020.104943] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/16/2020] [Accepted: 05/19/2020] [Indexed: 12/13/2022]
Abstract
Spermidine, as a natural component from polyamine members, is originally isolated from semen and also existed in many natural plants, and can be responsible for cell growth and development in eukaryotes. The supplementation of spermidine can extend health and lifespan across species. Although the elevated levels of polyamines and the regulation of rate-limiting enzymes for polyamine metabolism have been identified as the biomarkers in many cancers, recent epidemiological data support that an increased uptake of spermidine as a caloric restriction mimic can reduce overall mortality associated with cancers. The possible mechanisms between spermidine and cancer development may be related to the precise regulation of polyamine metabolism, anti-cancer immunosurveillance, autophagy, and apoptosis. Increased intake of polyamine seems to suppress tumorigenesis, but appears to accelerate the growth of established tumors. Based on these observations and the absolute requirement for polyamines in tumor growth, spermidine could be a rational target for chemoprevention and clinical therapeutics of cancers.
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Affiliation(s)
- Jingjing Fan
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Health Science, Wuhan Sports University, Wuhan 430079, China
| | - Ziyuan Feng
- Graduate School, Wuhan Sports University, Wuhan 430079, China
| | - Ning Chen
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Health Science, Wuhan Sports University, Wuhan 430079, China.
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146
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Abstract
The disease course of autoimmune diseases such as rheumatoid arthritis is altered during pregnancy, and a similar modulatory role of pregnancy on inflammatory bowel disease (IBD) has been proposed. Hormonal, immunological, and microbial changes occurring during normal pregnancy may interact with the pathophysiology of IBD. IBD consists of Crohn's disease and ulcerative colitis, and because of genetic, immunological, and microbial differences between these disease entities, they may react differently during pregnancy and should be described separately. This review will address the pregnancy-induced physiological changes and their potential effect on the disease course of ulcerative colitis and Crohn's disease, with emphasis on the modulation of epithelial barrier function and immune profiles by pregnancy hormones, microbial changes, and microchimerism.
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147
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Grzywa TM, Sosnowska A, Matryba P, Rydzynska Z, Jasinski M, Nowis D, Golab J. Myeloid Cell-Derived Arginase in Cancer Immune Response. Front Immunol 2020; 11:938. [PMID: 32499785 PMCID: PMC7242730 DOI: 10.3389/fimmu.2020.00938] [Citation(s) in RCA: 236] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/22/2020] [Indexed: 12/13/2022] Open
Abstract
Amino acid metabolism is a critical regulator of the immune response, and its modulating becomes a promising approach in various forms of immunotherapy. Insufficient concentrations of essential amino acids restrict T-cells activation and proliferation. However, only arginases, that degrade L-arginine, as well as enzymes that hydrolyze L-tryptophan are substantially increased in cancer. Two arginase isoforms, ARG1 and ARG2, have been found to be present in tumors and their increased activity usually correlates with more advanced disease and worse clinical prognosis. Nearly all types of myeloid cells were reported to produce arginases and the increased numbers of various populations of myeloid-derived suppressor cells and macrophages correlate with inferior clinical outcomes of cancer patients. Here, we describe the role of arginases produced by myeloid cells in regulating various populations of immune cells, discuss molecular mechanisms of immunoregulatory processes involving L-arginine metabolism and outline therapeutic approaches to mitigate the negative effects of arginases on antitumor immune response. Development of potent arginase inhibitors, with improved pharmacokinetic properties, may lead to the elaboration of novel therapeutic strategies based on targeting immunoregulatory pathways controlled by L-arginine degradation.
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Affiliation(s)
- Tomasz M. Grzywa
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Anna Sosnowska
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Paweł Matryba
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Laboratory of Neurobiology BRAINCITY, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
- The Doctoral School of the Medical University of Warsaw, Medical University of Warsaw, Warsaw, Poland
| | - Zuzanna Rydzynska
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Marcin Jasinski
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Dominika Nowis
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Laboratory of Experimental Medicine, Center of New Technologies, University of Warsaw, Warsaw, Poland
- Genomic Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Centre of Preclinical Research, Medical University of Warsaw, Warsaw, Poland
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148
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Regulating T-cell differentiation through the polyamine spermidine. J Allergy Clin Immunol 2020; 147:335-348.e11. [PMID: 32407834 DOI: 10.1016/j.jaci.2020.04.037] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 03/13/2020] [Accepted: 04/03/2020] [Indexed: 01/22/2023]
Abstract
BACKGROUND The cross-talk between the host and its microbiota plays a key role in the promotion of health. The production of metabolites such as polyamines by intestinal-resident bacteria is part of this symbiosis shaping host immunity. The polyamines putrescine, spermine, and spermidine are abundant within the gastrointestinal tract and might substantially contribute to gut immunity. OBJECTIVE We aimed to characterize the polyamine spermidine as a modulator of T-cell differentiation and function. METHODS Naive T cells were isolated from wild-type mice or cord blood from healthy donors and submitted to polarizing cytokines, with and without spermidine treatment, to evaluate CD4+ T-cell differentiation in vitro. Moreover, mice were subjected to oral supplementation of spermidine, or its precursor l-arginine, to assess the frequency and total numbers of regulatory T (Treg) cells in vivo. RESULTS Spermidine modulates CD4+ T-cell differentiation in vitro, preferentially committing naive T cells to a regulatory phenotype. After spermidine treatment, activated T cells lacking the autophagy gene Atg5 fail to upregulate Foxp3 to the same extent as wild-type cells. These results indicate that spermidine's polarizing effect requires an intact autophagic machinery. Furthermore, dietary supplementation with spermidine promotes homeostatic differentiation of Treg cells within the gut and reduces pathology in a model of T-cell transfer-induced colitis. CONCLUSION Altogether, our results highlight the beneficial effects of spermidine, or l-arginine, on gut immunity by promoting Treg cell development.
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149
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Dos Santos RO, da Cruz MGS, Lopes SCP, Oliveira LB, Nogueira PA, Lima ES, Soares IS, Kano FS, de Carvalho AT, Costa FTM, Ganoza CA, de Lacerda MVG, Lalwani P. A First Plasmodium vivax Natural Infection Induces Increased Activity of the Interferon Gamma-Driven Tryptophan Catabolism Pathway. Front Microbiol 2020; 11:400. [PMID: 32256470 PMCID: PMC7089964 DOI: 10.3389/fmicb.2020.00400] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 02/26/2020] [Indexed: 12/15/2022] Open
Abstract
The human immune response that controls Plasmodium infection in the liver and blood stages of the parasite life cycle is composed by both pro- and anti-inflammatory programs. Pro-inflammatory responses primarily mediated by IFN-γ controls the infection, but also induce tolerogenic mechanisms to limit host damage, including the tryptophan (TRP) catabolism pathway mediated by the enzyme Indoleamine 2,3-Dioxygenase (IDO1), an enzyme that catalyzes the degradation of TRP to kynurenines (KYN). Here we assessed total serum kynurenines and cytokine dynamics in a cohort of natural Plasmodium vivax human infection and compared them to those of endemic healthy controls and other febrile diseases. In acute malaria, the absolute free kynurenine (KYN) serum levels and the KYN to TRP (KYN/TRP) ratio were significantly elevated in patients compared to healthy controls. Individuals with a diagnosis of a first malaria episode had higher serum KYN levels than individuals with a previous malaria episode. We observed an inverse relationship between the serum levels of IFN-γ and IL-10 in patients with a first malaria episode compared to those of subjects with previous history of malaria. Kynurenine elevation was positively correlated with serum IFN-γ levels in acute infection, whereas, it was negatively correlated with parasite load and P. vivax LDH levels. Overall, the differences observed between infected individuals depended on the number of Plasmodium infections. The decrease in the KYN/TRP ratio in malaria-experienced subjects coincided with the onset of anti-P. vivax IgG. These results suggest that P. vivax infection induces a strong anti-inflammatory program in individuals with first time malaria, which fades with ensuing protective immunity after subsequent episodes. Understanding the tolerance mechanisms involved in the initial exposure would help in defining the balance between protective and pathogenic immune responses necessary to control infection and to improve vaccination strategies.
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Affiliation(s)
| | | | | | | | | | - Emerson Silva Lima
- Faculdade de Ciências Farmacêuticas, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
| | - Irene Silva Soares
- Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil
| | - Flora Satiko Kano
- Instituto René Rachou (IRR), Fiocruz Minas Gerais, Belo Horizonte, Brazil
| | | | - Fabio Trindade Maranhão Costa
- Departamento de Genética, Evolução, Imunologia e Microbiologia, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Christian A Ganoza
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Marcus Vinicius Guimarães de Lacerda
- Instituto Leônidas e Maria Deane (ILMD), Fiocruz Amazônia, Manaus, Brazil.,Fundação de Medicina Tropical, Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
| | - Pritesh Lalwani
- Instituto Leônidas e Maria Deane (ILMD), Fiocruz Amazônia, Manaus, Brazil
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Aminoacyl-tRNA synthetase inhibition activates a pathway that branches from the canonical amino acid response in mammalian cells. Proc Natl Acad Sci U S A 2020; 117:8900-8911. [PMID: 32253314 DOI: 10.1073/pnas.1913788117] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Signaling pathways that sense amino acid abundance are integral to tissue homeostasis and cellular defense. Our laboratory has previously shown that halofuginone (HF) inhibits the prolyl-tRNA synthetase catalytic activity of glutamyl-prolyl-tRNA synthetase (EPRS), thereby activating the amino acid response (AAR). We now show that HF treatment selectively inhibits inflammatory responses in diverse cell types and that these therapeutic benefits occur in cells that lack GCN2, the signature effector of the AAR. Depletion of arginine, histidine, or lysine from cultured fibroblast-like synoviocytes recapitulates key aspects of HF treatment, without utilizing GCN2 or mammalian target of rapamycin complex 1 pathway signaling. Like HF, the threonyl-tRNA synthetase inhibitor borrelidin suppresses the induction of tissue remodeling and inflammatory mediators in cytokine-stimulated fibroblast-like synoviocytes without GCN2, but both aminoacyl-tRNA synthetase (aaRS) inhibitors are sensitive to the removal of GCN1. GCN1, an upstream component of the AAR pathway, binds to ribosomes and is required for GCN2 activation. These observations indicate that aaRS inhibitors, like HF, can modulate inflammatory response without the AAR/GCN2 signaling cassette, and that GCN1 has a role that is distinct from its activation of GCN2. We propose that GCN1 participates in a previously unrecognized amino acid sensor pathway that branches from the canonical AAR.
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