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Medina-Ruiz L, Bartolini R, Mathie H, Halawa HA, Cunningham M, Graham GJ. CCR1 and CCR2 Coexpression on Monocytes Is Nonredundant and Delineates a Distinct Monocyte Subpopulation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:214-225. [PMID: 38829123 PMCID: PMC11215633 DOI: 10.4049/jimmunol.2400007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 05/13/2024] [Indexed: 06/05/2024]
Abstract
The interactions between chemokines and their receptors, particularly in the context of inflammation, are complex, with individual receptors binding multiple ligands and individual ligands interacting with multiple receptors. In addition, there are numerous reports of simultaneous coexpression of multiple inflammatory chemokine receptors on individual inflammatory leukocyte subtypes. Overall, this has previously been interpreted as redundancy and proposed as a protective mechanism to ensure that the inflammatory response is robust. By contrast, we have hypothesized that the system is not redundant but exquisitely subtle. Our interests relate to the receptors CCR1, CCR2, CCR3, and CCR5, which, together, regulate nonneutrophilic myeloid cell recruitment to inflammatory sites. In this study, we demonstrate that although most murine monocytes exclusively express CCR2, there is a small subpopulation that is expanded during inflammation and coexpresses CCR1 and CCR2. Combinations of transcript and functional analysis demonstrate that this is not redundant expression and that coexpression of CCR1 and CCR2 marks a phenotypically distinct population of monocytes characterized by expression of genes otherwise typically associated with neutrophils. Single-cell RNA sequencing confirms this as a monodisperse population of atypical monocytes. This monocytic population has previously been described as having immunosuppressive activity. Overall, our data confirm combinatorial chemokine receptor expression by a subpopulation of monocytes but demonstrate that this is not redundant expression and marks a discrete monocytic population.
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Affiliation(s)
- Laura Medina-Ruiz
- Chemokine Research Group, Centre for Immunobiology, School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Robin Bartolini
- Chemokine Research Group, Centre for Immunobiology, School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Heather Mathie
- Chemokine Research Group, Centre for Immunobiology, School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Heba A. Halawa
- Chemokine Research Group, Centre for Immunobiology, School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Madeleine Cunningham
- Chemokine Research Group, Centre for Immunobiology, School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Gerard J. Graham
- Chemokine Research Group, Centre for Immunobiology, School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
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Gardner RS, Kyle M, Hughes K, Zhao LR. Single-Cell RNA Sequencing Reveals Immunomodulatory Effects of Stem Cell Factor and Granulocyte Colony-Stimulating Factor Treatment in the Brains of Aged APP/PS1 Mice. Biomolecules 2024; 14:827. [PMID: 39062541 PMCID: PMC11275138 DOI: 10.3390/biom14070827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/28/2024] Open
Abstract
Alzheimer's disease (AD) leads to progressive neurodegeneration and dementia. AD primarily affects older adults with neuropathological changes including amyloid-beta (Aβ) deposition, neuroinflammation, and neurodegeneration. We have previously demonstrated that systemic treatment with combined stem cell factor (SCF) and granulocyte colony-stimulating factor (G-CSF) (SCF+G-CSF) reduces the Aβ load, increases Aβ uptake by activated microglia and macrophages, reduces neuroinflammation, and restores dendrites and synapses in the brains of aged APPswe/PS1dE9 (APP/PS1) mice. However, the mechanisms underlying SCF+G-CSF-enhanced brain repair in aged APP/PS1 mice remain unclear. This study used a transcriptomic approach to identify the potential mechanisms by which SCF+G-CSF treatment modulates microglia and peripheral myeloid cells to mitigate AD pathology in the aged brain. After injections of SCF+G-CSF for 5 consecutive days, single-cell RNA sequencing was performed on CD11b+ cells isolated from the brains of 28-month-old APP/PS1 mice. The vast majority of cell clusters aligned with transcriptional profiles of microglia in various activation states. However, SCF+G-CSF treatment dramatically increased a cell population showing upregulation of marker genes related to peripheral myeloid cells. Flow cytometry data also revealed an SCF+G-CSF-induced increase of cerebral CD45high/CD11b+ active phagocytes. SCF+G-CSF treatment robustly increased the transcription of genes implicated in immune cell activation, including gene sets that regulate inflammatory processes and cell migration. The expression of S100a8 and S100a9 was robustly enhanced following SCF+G-CSF treatment in all CD11b+ cell clusters. Moreover, the topmost genes differentially expressed with SCF+G-CSF treatment were largely upregulated in S100a8/9-positive cells, suggesting a well-conserved transcriptional profile related to SCF+G-CSF treatment in resident and peripherally derived CD11b+ immune cells. This S100a8/9-associated transcriptional profile contained notable genes related to pro-inflammatory and anti-inflammatory responses, neuroprotection, and Aβ plaque inhibition or clearance. Altogether, this study reveals the immunomodulatory effects of SCF+G-CSF treatment in the aged brain with AD pathology, which will guide future studies to further uncover the therapeutic mechanisms.
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Affiliation(s)
| | | | | | - Li-Ru Zhao
- Department of Neurosurgery, State University of New York Upstate Medical University, 750 E. Adams Street, Syracuse, NY 13210, USA
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3
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Akiyama M, Kanayama M, Umezawa Y, Nagao T, Izumi Y, Yamamoto M, Ohteki T. An early regulatory mechanism of hyperinflammation by restricting monocyte contribution. Front Immunol 2024; 15:1398153. [PMID: 39040105 PMCID: PMC11260625 DOI: 10.3389/fimmu.2024.1398153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 06/06/2024] [Indexed: 07/24/2024] Open
Abstract
Innate immune cells play a key role in inflammation as a source of pro-inflammatory cytokines. However, it remains unclear how innate immunity-mediated inflammation is fine-tuned to minimize tissue damage and assure the host's survival at the early phase of systemic inflammation. The results of this study with mouse models demonstrate that the supply of monocytes is restricted depending on the magnitude of inflammation. During the acute phase of severe inflammation, monocytes, but not neutrophils, were substantially reduced by apoptosis and the remaining monocytes were dysfunctional in the bone marrow. Monocyte-specific ablation of Casp3/7 prevented monocyte apoptosis but promoted monocyte necrosis in the bone marrow, leading to elevated levels of pro-inflammatory cytokines and the increased mortality of mice during systemic inflammation. Importantly, the limitation of monocyte supply was dependent on pro-inflammatory cytokines in vivo. Consistently, a reduction of monocytes was observed in the peripheral blood during cytokine-release syndrome (CRS) patients, a pathogen-unrelated systemic inflammation induced by chimeric antigen receptor-T cell (CAR-T cell) therapy. Thus, monocytes act as a safety valve to alleviate tissue damage caused by inflammation and ensure host survival, which may be responsible for a primitive immune-control mechanism that does not require intervention by acquired immunity.
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Affiliation(s)
- Megumi Akiyama
- Department of Biodefense Research, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- Department of Hematology, Graduate School of Medical and Dental Sciences, TMDU, Tokyo, Japan
| | - Masashi Kanayama
- Department of Biodefense Research, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yoshihiro Umezawa
- Department of Hematology, Graduate School of Medical and Dental Sciences, TMDU, Tokyo, Japan
| | - Toshikage Nagao
- Department of Hematology, Graduate School of Medical and Dental Sciences, TMDU, Tokyo, Japan
| | - Yuta Izumi
- Department of Biodefense Research, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Masahide Yamamoto
- Department of Hematology, Graduate School of Medical and Dental Sciences, TMDU, Tokyo, Japan
| | - Toshiaki Ohteki
- Department of Biodefense Research, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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4
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Gardner R, Kyle M, Hughes K, Zhao LR. Single cell RNA sequencing reveals immunomodulatory effects of stem cell factor and granulocyte colony-stimulating factor treatment in the brains of aged APP/PS1 mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.09.593359. [PMID: 38766064 PMCID: PMC11100789 DOI: 10.1101/2024.05.09.593359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Alzheimers disease leads to progressive neurodegeneration and dementia. Alzheimers disease primarily affects older adults with neuropathological changes including amyloid beta deposition, neuroinflammation, and neurodegeneration. We have previously demonstrated that systemic treatment with combined stem cell factor, SCF, and granulocyte colony stimulating factor, GCSF, reduces amyloid beta load, increases amyloid beta uptake by activated microglia and macrophages, reduces neuroinflammation, and restores dendrites and synapses in the brains of aged APP-PS1 mice. However, the mechanisms underlying SCF-GCSF-enhanced brain repair in aged APP-PS1 mice remain unclear. This study used a transcriptomic approach to identify potential mechanisms by which SCF-GCSF treatment modulates microglia and peripheral myeloid cells to mitigate Alzheimers disease pathology in the aged brain. After injections of SCF-GCSF for 5 consecutive days, single cell RNA sequencing was performed on CD11b positive cells isolated from the brains of 28-month-old APP-PS1 mice. The vast majority of cell clusters aligned with transcriptional profiles of microglia in various activation states. However, SCF-GCSF treatment dramatically increased a cell population showing upregulation of marker genes related to peripheral myeloid cells. Flow cytometry data also revealed an SCF-GCSF-induced increase of cerebral CD45high-CD11b positive active phagocytes. SCF-GCSF treatment robustly increased the transcription of genes implicated in immune cell activation, including gene sets that regulate inflammatory processes and cell migration. Expression of S100a8 and S100a9 were robustly enhanced following SCF-GCSF treatment in all CD11b positive cell clusters. Moreover, the topmost genes differentially expressed with SCF-GCSF treatment were largely upregulated in S100a8-S100a9 positive cells, suggesting a well-conserved transcriptional profile related to SCF-GCSF treatment in resident and peripherally derived CD11b positive immune cells. This S100a8-S100a9-associated transcriptional profile contained notable genes related to proinflammatory and antiinflammatory responses, neuroprotection, and amyloid beta plaque inhibition or clearance. Altogether, this study reveals immunomodulatory effects of SCF-GCSF treatment in the aged brain with Alzheimers disease pathology, which will guide future studies to further uncover the therapeutic mechanisms.
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Sommer K, Garibagaoglu H, Paap EM, Wiendl M, Müller TM, Atreya I, Krönke G, Neurath MF, Zundler S. Discrepant Phenotyping of Monocytes Based on CX3CR1 and CCR2 Using Fluorescent Reporters and Antibodies. Cells 2024; 13:819. [PMID: 38786041 PMCID: PMC11119841 DOI: 10.3390/cells13100819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
Monocytes, as well as downstream macrophages and dendritic cells, are essential players in the immune system, fulfilling key roles in homeostasis as well as in inflammatory conditions. Conventionally, driven by studies on reporter models, mouse monocytes are categorized into a classical and a non-classical subset based on their inversely correlated surface expression of Ly6C/CCR2 and CX3CR1. Here, we aimed to challenge this concept by antibody staining and reporter mouse models. Therefore, we took advantage of Cx3cr1GFP and Ccr2RFP reporter mice, in which the respective gene was replaced by a fluorescent reporter protein gene. We analyzed the expression of CX3CR1 and CCR2 by flow cytometry using several validated fluorochrome-coupled antibodies and compared them with the reporter gene signal in these reporter mouse strains. Although we were able to validate the specificity of the fluorochrome-coupled flow cytometry antibodies, mouse Ly6Chigh classical and Ly6Clow non-classical monocytes showed no differences in CX3CR1 expression levels in the peripheral blood and spleen when stained with these antibodies. On the contrary, in Cx3cr1GFP reporter mice, we were able to reproduce the inverse correlation of the CX3CR1 reporter gene signal and Ly6C surface expression. Furthermore, differential CCR2 surface expression correlating with the expression of Ly6C was observed by antibody staining, but not in Ccr2RFP reporter mice. In conclusion, our data suggest that phenotyping strategies for mouse monocyte subsets should be carefully selected. In accordance with the literature, the suitability of CX3CR1 antibody staining is limited, whereas for CCR2, caution should be applied when using reporter mice.
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Affiliation(s)
- Katrin Sommer
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (K.S.); (E.-M.P.); (T.M.M.); (I.A.); (G.K.); (M.F.N.)
| | - Hilal Garibagaoglu
- Department of Medicine 3, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany;
| | - Eva-Maria Paap
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (K.S.); (E.-M.P.); (T.M.M.); (I.A.); (G.K.); (M.F.N.)
| | - Maximilian Wiendl
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (K.S.); (E.-M.P.); (T.M.M.); (I.A.); (G.K.); (M.F.N.)
| | - Tanja M. Müller
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (K.S.); (E.-M.P.); (T.M.M.); (I.A.); (G.K.); (M.F.N.)
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, 91054 Erlangen, Germany
| | - Imke Atreya
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (K.S.); (E.-M.P.); (T.M.M.); (I.A.); (G.K.); (M.F.N.)
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, 91054 Erlangen, Germany
| | - Gerhard Krönke
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (K.S.); (E.-M.P.); (T.M.M.); (I.A.); (G.K.); (M.F.N.)
- Medical Department of Rheumatology and Clinical Immunology, Charité—Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Markus F. Neurath
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (K.S.); (E.-M.P.); (T.M.M.); (I.A.); (G.K.); (M.F.N.)
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, 91054 Erlangen, Germany
| | - Sebastian Zundler
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (K.S.); (E.-M.P.); (T.M.M.); (I.A.); (G.K.); (M.F.N.)
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, 91054 Erlangen, Germany
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6
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Rajmani RS, Surolia A. Antimycobacterial and healing effects of Pranlukast against MTB infection and pathogenesis in a preclinical mouse model of tuberculosis. Front Immunol 2024; 15:1347045. [PMID: 38756781 PMCID: PMC11096513 DOI: 10.3389/fimmu.2024.1347045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 04/19/2024] [Indexed: 05/18/2024] Open
Abstract
It is essential to understand the interactions and relationships between Mycobacterium tuberculosis (Mtb) and macrophages during the infection in order to design host-directed, immunomodulation-dependent therapeutics to control Mtb. We had reported previously that ornithine acetyltransferase (MtArgJ), a crucial enzyme of the arginine biosynthesis pathway of Mtb, is allosterically inhibited by pranlukast (PRK), which significantly reduces bacterial growth. The present investigation is centered on the immunomodulation in the host by PRK particularly the activation of the host's immune response to counteract bacterial survival and pathogenicity. Here, we show that PRK decreased the bacterial burden in the lungs by upregulating the population of pro-inflammatory interstitial macrophages (IMs) and reducing the population of Mtb susceptible alveolar macrophages (AMs), dendritic cells (DCs), and monocytes (MO). Additionally, we deduce that PRK causes the host macrophages to change their metabolic pathway from fatty acid metabolism to glycolytic metabolism around the log phage of bacterial multiplication. Further, we report that PRK reduced tissue injury by downregulating the Ly6C-positive population of monocytes. Interestingly, PRK treatment improved tissue repair and inflammation resolution by increasing the populations of arginase 1 (Arg-1) and Ym1+Ym2 (chitinase 3-like 3) positive macrophages. In summary, our study found that PRK is useful not only for reducing the tubercular burden but also for promoting the healing of the diseased tissue.
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Affiliation(s)
- Raju S. Rajmani
- Molecular Biophysics Unit, Indian Institute of Science, Bengaluru, Karnataka, India
| | - Avadhesha Surolia
- Molecular Biophysics Unit, Indian Institute of Science, Bengaluru, Karnataka, India
- Dr. Reddy's Institute of Life Sciences, Hyderabad, Telangana, India
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7
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Silvestre-Roig C, Brandau S. Controversies associated with the identification of the true origins of human neutrophils. J Leukoc Biol 2024; 115:797-800. [PMID: 38412285 DOI: 10.1093/jleuko/qiae036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/29/2024] Open
Abstract
Discussion on the lineage commitment of early human neutrophil progenitors.
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Affiliation(s)
- Carlos Silvestre-Roig
- Institute of Experimental Pathology (ExPat), Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Von-Esmarch-Straße 56, 48149 Münster, Germany
| | - Sven Brandau
- Experimental and Translational Research, Department of Otorhinolaryngology, University Hospital Essen, Hufelandstrasse 55, 45122 Essen, Germany
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Ghosh D, Yaron JR, Abedin MR, Godeshala S, Kumar S, Kilbourne J, Berthiaume F, Rege K. Bioactive nanomaterials kickstart early repair processes and potentiate temporally modulated healing of healthy and diabetic wounds. Biomaterials 2024; 306:122496. [PMID: 38373363 DOI: 10.1016/j.biomaterials.2024.122496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/15/2024] [Accepted: 01/30/2024] [Indexed: 02/21/2024]
Abstract
Slow-healing and chronic wounds represent a major global economic and medical burden, and there is significant unmet need for novel therapies which act to both accelerate wound closure and enhance biomechanical recovery of the skin. Here, we report a new approach in which bioactives that augment early stages of wound healing can kickstart and engender effective wound closure in healthy and diabetic, obese animals, and set the stage for subsequent tissue repair processes. We demonstrate that a nanomaterial dressing made of silk fibroin and gold nanorods (GNR) stimulates a pro-neutrophilic, innate immune, and controlled inflammatory wound transcriptomic response. Further, Silk-GNR, lasered into the wound bed, in combination with exogeneous histamine, accelerates early-stage processes in tissue repair leading to effective wound closure. Silk-GNR and histamine enhanced biomechanical recovery of skin, increased transient neoangiogenesis, myofibroblast activation, epithelial-to-mesenchymal transition (EMT) of keratinocytes and a pro-resolving neutrophilic immune response, which are hitherto unknown activities for these bioactives. Predictive and temporally coordinated delivery of growth factor nanoparticles that modulate later stages of tissue repair further accelerated wound closure in healthy and diabetic, obese animals. Our approach of kickstarting healing by delivering the "right bioactive at the right time" stimulates a multifactorial, pro-reparative response by augmenting endogenous healing and immunoregulatory mechanisms and highlights new targets to promote tissue repair.
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Affiliation(s)
- Deepanjan Ghosh
- Biological Design Graduate Program, Arizona State University, Tempe, AZ 85287, USA
| | - Jordan R Yaron
- Center for Biomaterials Innovation and Translation (CBIT), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; Chemical Engineering, School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Muhammad Raisul Abedin
- Center for Biomaterials Innovation and Translation (CBIT), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; Chemical Engineering, School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Sudhakar Godeshala
- Center for Biomaterials Innovation and Translation (CBIT), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; Chemical Engineering, School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Suneel Kumar
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ 08854, USA
| | - Jacquelyn Kilbourne
- Department of Animal Care and Technologies, Arizona State University, Tempe, AZ 85287, USA
| | - Francois Berthiaume
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ 08854, USA
| | - Kaushal Rege
- Biological Design Graduate Program, Arizona State University, Tempe, AZ 85287, USA; Center for Biomaterials Innovation and Translation (CBIT), The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; Chemical Engineering, School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85287, USA.
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Gudenschwager Basso EK, Ju J, Soliman E, de Jager C, Wei X, Pridham KJ, Olsen ML, Theus MH. Immunoregulatory and neutrophil-like monocyte subsets with distinct single-cell transcriptomic signatures emerge following brain injury. J Neuroinflammation 2024; 21:41. [PMID: 38310257 PMCID: PMC10838447 DOI: 10.1186/s12974-024-03032-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 01/26/2024] [Indexed: 02/05/2024] Open
Abstract
Monocytes represent key cellular elements that contribute to the neurological sequela following brain injury. The current study reveals that trauma induces the augmented release of a transcriptionally distinct CD115+/Ly6Chi monocyte population into the circulation of mice pre-exposed to clodronate depletion conditions. This phenomenon correlates with tissue protection, blood-brain barrier stability, and cerebral blood flow improvement. Uniquely, this shifted the innate immune cell profile in the cortical milieu and reduced the expression of pro-inflammatory Il6, IL1r1, MCP-1, Cxcl1, and Ccl3 cytokines. Monocytes that emerged under these conditions displayed a morphological and gene profile consistent with a subset commonly seen during emergency monopoiesis. Single-cell RNA sequencing delineated distinct clusters of monocytes and revealed a key transcriptional signature of Ly6Chi monocytes enriched for Apoe and chitinase-like protein 3 (Chil3/Ym1), commonly expressed in pro-resolving immunoregulatory monocytes, as well as granule genes Elane, Prtn3, MPO, and Ctsg unique to neutrophil-like monocytes. The predominate shift in cell clusters included subsets with low expression of transcription factors involved in monocyte conversion, Pou2f2, Na4a1, and a robust enrichment of genes in the oxidative phosphorylation pathway which favors an anti-inflammatory phenotype. Transfer of this monocyte assemblage into brain-injured recipient mice demonstrated their direct role in neuroprotection. These findings reveal a multifaceted innate immune response to brain injury and suggest targeting surrogate monocyte subsets may foster tissue protection in the brain.
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Affiliation(s)
- Erwin K Gudenschwager Basso
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA
- Department of Physiology and Aging, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Jing Ju
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA
| | - Eman Soliman
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA
| | - Caroline de Jager
- Translational, Biology, Medicine and Health Graduate Program, Virginia Tech, Roanoke, VA, 24016, USA
| | - Xiaoran Wei
- School of Neuroscience, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Kevin J Pridham
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA
| | - Michelle L Olsen
- School of Neuroscience, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Michelle H Theus
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, 970 Washington Street SW, Life Sciences I, Rm 249 (MC0910), Blacksburg, VA, 24061, USA.
- Center for Engineered Health, Virginia Tech, Blacksburg, VA, 24061, USA.
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Smart CD, Fehrenbach DJ, Wassenaar JW, Agrawal V, Fortune NL, Dixon DD, Cottam MA, Hasty AH, Hemnes AR, Doran AC, Gupta DK, Madhur MS. Immune profiling of murine cardiac leukocytes identifies triggering receptor expressed on myeloid cells 2 as a novel mediator of hypertensive heart failure. Cardiovasc Res 2023; 119:2312-2328. [PMID: 37314125 PMCID: PMC10597637 DOI: 10.1093/cvr/cvad093] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 03/17/2023] [Accepted: 06/12/2023] [Indexed: 06/15/2023] Open
Abstract
AIMS Heart failure with preserved ejection fraction (HFpEF) is characterized by diastolic dysfunction, microvascular dysfunction, and myocardial fibrosis with recent evidence implicating the immune system in orchestrating cardiac remodelling. METHODS AND RESULTS Here, we show the mouse model of deoxycorticosterone acetate (DOCA)-salt hypertension induces key elements of HFpEF, including diastolic dysfunction, exercise intolerance, and pulmonary congestion in the setting of preserved ejection fraction. A modified single-cell sequencing approach, cellular indexing of transcriptomes and epitopes by sequencing, of cardiac immune cells reveals an altered abundance and transcriptional signature in multiple cell types, most notably cardiac macrophages. The DOCA-salt model results in differential expression of several known and novel genes in cardiac macrophages, including up-regulation of Trem2, which has been recently implicated in obesity and atherosclerosis. The role of Trem2 in hypertensive heart failure, however, is unknown. We found that mice with genetic deletion of Trem2 exhibit increased cardiac hypertrophy, diastolic dysfunction, renal injury, and decreased cardiac capillary density after DOCA-salt treatment compared to wild-type controls. Moreover, Trem2-deficient macrophages have impaired expression of pro-angiogenic gene programmes and increased expression of pro-inflammatory cytokines. Furthermore, we found that plasma levels of soluble TREM2 are elevated in DOCA-salt treated mice and humans with heart failure. CONCLUSIONS Together, our data provide an atlas of immunological alterations that can lead to improved diagnostic and therapeutic strategies for HFpEF. We provide our dataset in an easy to explore and freely accessible web application making it a useful resource for the community. Finally, our results suggest a novel cardioprotective role for Trem2 in hypertensive heart failure.
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Affiliation(s)
- Charles Duncan Smart
- Department of Molecular Physiology and Biophysics, Vanderbilt University, 2201 West End Ave, Nashville, TN 37235, USA
| | - Daniel J Fehrenbach
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center (VUMC), 2215 Garland Avenue, P415D MRB IV, Nashville, TN 37232, USA
| | - Jean W Wassenaar
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center (VUMC), 1311 Medical Center Dr, Nashville, TN 37232, USA
| | - Vineet Agrawal
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center (VUMC), 1311 Medical Center Dr, Nashville, TN 37232, USA
| | - Niki L Fortune
- VA Tennessee Valley Healthcare System, Nashville, TN 37212, USA
| | - Debra D Dixon
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center (VUMC), 1311 Medical Center Dr, Nashville, TN 37232, USA
| | - Matthew A Cottam
- Department of Molecular Physiology and Biophysics, Vanderbilt University, 2201 West End Ave, Nashville, TN 37235, USA
| | - Alyssa H Hasty
- Department of Molecular Physiology and Biophysics, Vanderbilt University, 2201 West End Ave, Nashville, TN 37235, USA
- VA Tennessee Valley Healthcare System, Nashville, TN 37212, USA
| | - Anna R Hemnes
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA
| | - Amanda C Doran
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center (VUMC), 1311 Medical Center Dr, Nashville, TN 37232, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center (VUMC), Medical Center North A-5121, 1161 21st Ave South, Nashville, TN 37232, USA
| | - Deepak K Gupta
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center (VUMC), 1311 Medical Center Dr, Nashville, TN 37232, USA
- Vanderbilt Translational and Clinical Cardiovascular Research Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Meena S Madhur
- Department of Molecular Physiology and Biophysics, Vanderbilt University, 2201 West End Ave, Nashville, TN 37235, USA
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center (VUMC), 2215 Garland Avenue, P415D MRB IV, Nashville, TN 37232, USA
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center (VUMC), 1311 Medical Center Dr, Nashville, TN 37232, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center (VUMC), Medical Center North A-5121, 1161 21st Ave South, Nashville, TN 37232, USA
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11
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Teh YC, Chooi MY, Chong SZ. Behind the monocyte's mystique: uncovering their developmental trajectories and fates. DISCOVERY IMMUNOLOGY 2023; 2:kyad008. [PMID: 38567063 PMCID: PMC10917229 DOI: 10.1093/discim/kyad008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 05/11/2023] [Accepted: 07/17/2023] [Indexed: 04/04/2024]
Abstract
Monocytes are circulating myeloid cells that are derived from dedicated progenitors in the bone marrow. Originally thought of as mere precursors for the replacement of tissue macrophages, it is increasingly clear that monocytes execute distinct effector functions and may give rise to monocyte-derived cells with unique properties from tissue-resident macrophages. Recently, the advent of novel experimental approaches such as single-cell analysis and fate-mapping tools has uncovered an astonishing display of monocyte plasticity and heterogeneity, which we believe has emerged as a key theme in the field of monocyte biology in the last decade. Monocyte heterogeneity is now recognized to develop as early as the progenitor stage through specific imprinting mechanisms, giving rise to specialized effector cells in the tissue. At the same time, monocytes must overcome their susceptibility towards cellular death to persist as monocyte-derived cells in the tissues. Environmental signals that preserve their heterogenic phenotypes and govern their eventual fates remain incompletely understood. In this review, we will summarize recent advances on the developmental trajectory of monocytes and discuss emerging concepts that contributes to the burgeoning field of monocyte plasticity and heterogeneity.
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Affiliation(s)
- Ye Chean Teh
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Ming Yao Chooi
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Shu Zhen Chong
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
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12
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Chen X, Li Y, Xia H, Chen YH. Monocytes in Tumorigenesis and Tumor Immunotherapy. Cells 2023; 12:1673. [PMID: 37443711 PMCID: PMC10340267 DOI: 10.3390/cells12131673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 07/15/2023] Open
Abstract
Monocytes are highly plastic innate immune cells that display significant heterogeneity during homeostasis, inflammation, and tumorigenesis. Tumor-induced systemic and local microenvironmental changes influence the phenotype, differentiation, and distribution of monocytes. Meanwhile, monocytes and their related cell subsets perform an important regulatory role in the development of many cancers by affecting tumor growth or metastasis. Thanks to recent advances in single-cell technologies, the nature of monocyte heterogeneity and subset-specific functions have become increasingly clear, making it possible to systematically analyze subset-specific roles of monocytes in tumorigenesis. In this review, we discuss recent discoveries related to monocytes and tumorigenesis, and new strategies for tumor biomarker identification and anti-tumor immunotherapy.
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Affiliation(s)
| | | | - Houjun Xia
- Center for Cancer Immunology, Faculty of Pharmaceutical Sciences, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen 518000, China; (X.C.); (Y.L.)
| | - Youhai H. Chen
- Center for Cancer Immunology, Faculty of Pharmaceutical Sciences, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen 518000, China; (X.C.); (Y.L.)
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13
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Abdalla HB, Alvarez C, Wu YC, Rojas P, Hammock BD, Maddipati KR, Trindade-da-Silva CA, Soares MQS, Clemente-Napimoga JT, Kantarci A, Napimoga MH, Van Dyke TE. Soluble epoxide hydrolase inhibition enhances production of specialized pro-resolving lipid mediator and promotes macrophage plasticity. Br J Pharmacol 2023; 180:1597-1615. [PMID: 36508312 PMCID: PMC10175184 DOI: 10.1111/bph.16009] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/25/2022] [Accepted: 10/10/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND AND PURPOSE Epoxyeicosatrienoic acids (EETs) and other epoxy fatty acids (EpFA) are lipid mediators that are rapidly inactivated by soluble epoxide hydrolase (sEH). Uncontrolled and chronic inflammatory disorders fail to sufficiently activate endogenous regulatory pathways, including the production of specialized pro-resolving mediators (SPMs). Here, we addressed the relationship between SPMs and the EET/sEH axis and explored the effects of sEH inhibition on resolving macrophage phenotype. EXPERIMENTAL APPROACH Mice were treated with a sEH inhibitor, EETs, or sEH inhibitor + EETs (combination) before ligature placement to induce experimental periodontitis. Using RT-qPCR, gingival samples were used to examine SPM receptors and osteolytic and inflammatory biomarkers. Maxillary alveolar bone loss was quantified by micro-CT and methylene blue staining. SPM levels were analysed by salivary metabolo-lipidomics. Gingival macrophage phenotype plasticity was determined by RT-qPCR and flow cytometry. Effects of sEH inhibition on macrophage polarization and SPM production were assessed with bone marrow-derived macrophages (BMDMs). KEY RESULTS Pharmacological inhibition of sEH suppressed bone resorption and the inflammatory cytokine storm in experimental periodontitis. Lipidomic analysis revealed that sEH inhibition augmented levels of LXA4, RvE1, RvE2, and 4-HDoHE, concomitant with up-regulation of LTB4R1, CMKLR1/ChemR23, and ALX/FPR2 SPM receptors. Notably, there is an impact on gingival macrophage plasticity was affected suggesting an inflammation resolving phenotype with sEH inhibition. In BMDMs, sEH inhibition reduced inflammatory macrophage activation, and resolving macrophages were triggered to produce SPMs. CONCLUSION AND IMPLICATIONS Pharmacological sEH inhibition increased SPM synthesis associated with resolving macrophages, suggesting a potential target to control osteolytic inflammatory disorders.
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Affiliation(s)
- Henrique B Abdalla
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, Massachusetts, USA
- Laboratory of Neuroimmune Interface of Pain Research, Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, Brazil
| | - Carla Alvarez
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, Massachusetts, USA
| | - Yu-Chiao Wu
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, Massachusetts, USA
- Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Paola Rojas
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, Massachusetts, USA
| | - Bruce D Hammock
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, California, USA
| | | | - Carlos Antonio Trindade-da-Silva
- Laboratory of Neuroimmune Interface of Pain Research, Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, Brazil
| | - Mariana Q S Soares
- Laboratory of Neuroimmune Interface of Pain Research, Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, Brazil
| | - Juliana T Clemente-Napimoga
- Laboratory of Neuroimmune Interface of Pain Research, Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, Brazil
| | - Alpdogan Kantarci
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, Massachusetts, USA
| | - Marcelo H Napimoga
- Laboratory of Neuroimmune Interface of Pain Research, Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, Brazil
| | - Thomas E Van Dyke
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, Massachusetts, USA
- Department of Oral Medicine, Infection, and Immunity, Faculty of Medicine, Harvard University, Boston, Massachusetts, USA
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14
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Ng LG, Liu Z, Kwok I, Ginhoux F. Origin and Heterogeneity of Tissue Myeloid Cells: A Focus on GMP-Derived Monocytes and Neutrophils. Annu Rev Immunol 2023; 41:375-404. [PMID: 37126421 DOI: 10.1146/annurev-immunol-081022-113627] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Myeloid cells are a significant proportion of leukocytes within tissues, comprising granulocytes, monocytes, dendritic cells, and macrophages. With the identification of various myeloid cells that perform separate but complementary functions during homeostasis and disease, our understanding of tissue myeloid cells has evolved significantly. Exciting findings from transcriptomics profiling and fate-mapping mouse models have facilitated the identification of their developmental origins, maturation, and tissue-specific specializations. This review highlights the current understanding of tissue myeloid cells and the contributing factors of functional heterogeneity to better comprehend the complex and dynamic immune interactions within the healthy or inflamed tissue. Specifically, we discuss the new understanding of the contributions of granulocyte-monocyte progenitor-derived phagocytes to tissue myeloid cell heterogeneity as well as the impact of niche-specific factors on monocyte and neutrophil phenotype and function. Lastly, we explore the developing paradigm of myeloid cell heterogeneity during inflammation and disease.
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Affiliation(s)
- Lai Guan Ng
- Shanghai Immune Therapy Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China;
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore; ,
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Zhaoyuan Liu
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Immanuel Kwok
- Singapore Immunology Network (SIgN), ASTAR (Agency for Science, Technology and Research), Biopolis, Singapore; ,
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), ASTAR (Agency for Science, Technology and Research), Biopolis, Singapore; ,
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institut Gustave Roussy, INSERM U1015, Villejuif, France
- Translational Immunology Institute, SingHealth Duke-NUS Academic Medical Centre, Singapore
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15
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Hegarty LM, Jones GR, Bain CC. Macrophages in intestinal homeostasis and inflammatory bowel disease. Nat Rev Gastroenterol Hepatol 2023:10.1038/s41575-023-00769-0. [PMID: 37069320 DOI: 10.1038/s41575-023-00769-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/13/2023] [Indexed: 04/19/2023]
Abstract
Macrophages are essential for the maintenance of intestinal homeostasis, yet appear to be drivers of inflammation in the context of inflammatory bowel disease (IBD). How these peacekeepers become powerful aggressors in IBD is still unclear, but technological advances have revolutionized our understanding of many facets of their biology. In this Review, we discuss the progress made in understanding the heterogeneity of intestinal macrophages, the functions they perform in gut health and how the environment and origin can control the differentiation and longevity of these cells. We describe how these processes might change in the context of chronic inflammation and how aberrant macrophage behaviour contributes to IBD pathology, and discuss how therapeutic approaches might target dysregulated macrophages to dampen inflammation and promote mucosal healing. Finally, we set out key areas in the field of intestinal macrophage biology for which further investigation is warranted.
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Affiliation(s)
- Lizi M Hegarty
- Centre for Inflammation Research, Institute of Regeneration and Repair, University of Edinburgh, Edinburgh BioQuarter, Queen's Medical Research Institute, Edinburgh, UK
| | - Gareth-Rhys Jones
- Centre for Inflammation Research, Institute of Regeneration and Repair, University of Edinburgh, Edinburgh BioQuarter, Queen's Medical Research Institute, Edinburgh, UK
| | - Calum C Bain
- Centre for Inflammation Research, Institute of Regeneration and Repair, University of Edinburgh, Edinburgh BioQuarter, Queen's Medical Research Institute, Edinburgh, UK.
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16
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Janssen H, Kahles F, Liu D, Downey J, Koekkoek LL, Roudko V, D'Souza D, McAlpine CS, Halle L, Poller WC, Chan CT, He S, Mindur JE, Kiss MG, Singh S, Anzai A, Iwamoto Y, Kohler RH, Chetal K, Sadreyev RI, Weissleder R, Kim-Schulze S, Merad M, Nahrendorf M, Swirski FK. Monocytes re-enter the bone marrow during fasting and alter the host response to infection. Immunity 2023; 56:783-796.e7. [PMID: 36827982 PMCID: PMC10101885 DOI: 10.1016/j.immuni.2023.01.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/11/2022] [Accepted: 01/19/2023] [Indexed: 02/25/2023]
Abstract
Diet profoundly influences physiology. Whereas over-nutrition elevates risk for disease via its influence on immunity and metabolism, caloric restriction and fasting appear to be salutogenic. Despite multiple correlations observed between diet and health, the underlying biology remains unclear. Here, we identified a fasting-induced switch in leukocyte migration that prolongs monocyte lifespan and alters susceptibility to disease in mice. We show that fasting during the active phase induced the rapid return of monocytes from the blood to the bone marrow. Monocyte re-entry was orchestrated by hypothalamic-pituitary-adrenal (HPA) axis-dependent release of corticosterone, which augmented the CXCR4 chemokine receptor. Although the marrow is a safe haven for monocytes during nutrient scarcity, re-feeding prompted mobilization culminating in monocytosis of chronologically older and transcriptionally distinct monocytes. These shifts altered response to infection. Our study shows that diet-in particular, a diet's temporal dynamic balance-modulates monocyte lifespan with consequences for adaptation to external stressors.
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Affiliation(s)
- Henrike Janssen
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Florian Kahles
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Dan Liu
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jeffrey Downey
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Laura L Koekkoek
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Vladimir Roudko
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Darwin D'Souza
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Cameron S McAlpine
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Lennard Halle
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Wolfram C Poller
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Christopher T Chan
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Shun He
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - John E Mindur
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Máté G Kiss
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Sumnima Singh
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Atsushi Anzai
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Yoshiko Iwamoto
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Rainer H Kohler
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Kashish Chetal
- Department of Molecular Biology and Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ruslan I Sadreyev
- Department of Molecular Biology and Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Department of Systems Biology, Harvard Medical School, Boston, MA, USA
| | - Seunghee Kim-Schulze
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Marc and Jennifer Lipschultz Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Miriam Merad
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Marc and Jennifer Lipschultz Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Matthias Nahrendorf
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Filip K Swirski
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Marc and Jennifer Lipschultz Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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17
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Declercq J, Hammad H, Lambrecht BN, Smole U. Chitinases and chitinase-like proteins in asthma. Semin Immunol 2023; 67:101759. [PMID: 37031560 DOI: 10.1016/j.smim.2023.101759] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 03/27/2023] [Indexed: 04/11/2023]
Abstract
Despite the lack of endogenous chitin synthesis, mammalian genomes encode two enzymatically active true chitinases (chitotriosidase and acidic mammalian chitinase) and a variable number of chitinase-like proteins (CLPs) that have no enzyme activity but bind chitin. Chitinases and CLPs are prominent components of type-2 immune response-mediated respiratory diseases. However, despite extensive research into their role in allergic airway disease, there is still no agreement on whether they are mere biomarkers of disease or actual disease drivers. Functions ascribed to chitinases and CLPs include, but are not limited to host defense against chitin-containing pathogens, directly promoting inflammation, and modulating tissue remodeling and fibrosis. Here, we discuss in detail the chitin-dependent and -independent roles of chitinases and CLPs in the context of allergic airway disease, and recent advances and emerging concepts in the field that might identify opportunities for new therapies.
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Affiliation(s)
- Jozefien Declercq
- Immunoregulation Unit, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Hamida Hammad
- Immunoregulation Unit, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Bart N Lambrecht
- Immunoregulation Unit, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Department of Pulmonary Medicine, ErasmusMC, Rotterdam, the Netherlands.
| | - Ursula Smole
- Immunoregulation Unit, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.
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18
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Henderson Sousa F, Ghaisani Komarudin A, Findlay-Greene F, Bowolaksono A, Sasmono RT, Stevens C, Barlow PG. Evolution and immunopathology of chikungunya virus informs therapeutic development. Dis Model Mech 2023; 16:dmm049804. [PMID: 37014125 PMCID: PMC10110403 DOI: 10.1242/dmm.049804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Chikungunya virus (CHIKV), a mosquito-borne alphavirus, is an emerging global threat identified in more than 60 countries across continents. The risk of CHIKV transmission is rising due to increased global interactions, year-round presence of mosquito vectors, and the ability of CHIKV to produce high host viral loads and undergo mutation. Although CHIKV disease is rarely fatal, it can progress to a chronic stage, during which patients experience severe debilitating arthritis that can last from several weeks to months or years. At present, there are no licensed vaccines or antiviral drugs for CHIKV disease, and treatment is primarily symptomatic. This Review provides an overview of CHIKV pathogenesis and explores the available therapeutic options and the most recent advances in novel therapeutic strategies against CHIKV infections.
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Affiliation(s)
- Filipa Henderson Sousa
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
- Centre for Discovery Brain Sciences and UK Dementia Research Institute, The University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Amalina Ghaisani Komarudin
- Eijkman Research Center for Molecular Biology, National Research and Innovation Agency, Cibinong Science Center, Cibinong, Kabupaten Bogor 16911, Indonesia
| | - Fern Findlay-Greene
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
| | - Anom Bowolaksono
- Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
| | - R. Tedjo Sasmono
- Eijkman Research Center for Molecular Biology, National Research and Innovation Agency, Cibinong Science Center, Cibinong, Kabupaten Bogor 16911, Indonesia
| | - Craig Stevens
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
| | - Peter G. Barlow
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
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19
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The early neutrophil-committed progenitors aberrantly differentiate into immunoregulatory monocytes during emergency myelopoiesis. Cell Rep 2023; 42:112165. [PMID: 36862552 DOI: 10.1016/j.celrep.2023.112165] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/08/2022] [Accepted: 02/08/2023] [Indexed: 03/03/2023] Open
Abstract
Inflammatory stimuli cause a state of emergency myelopoiesis leading to neutrophil-like monocyte expansion. However, their function, the committed precursors, or growth factors remain elusive. In this study we find that Ym1+Ly6Chi monocytes, an immunoregulatory entity of neutrophil-like monocytes, arise from progenitors of neutrophil 1 (proNeu1). Granulocyte-colony stimulating factor (G-CSF) favors the production of neutrophil-like monocytes through previously unknown CD81+CX3CR1lo monocyte precursors. GFI1 promotes the differentiation of proNeu2 from proNeu1 at the cost of producing neutrophil-like monocytes. The human counterpart of neutrophil-like monocytes that also expands in response to G-CSF is found in CD14+CD16- monocyte fraction. The human neutrophil-like monocytes are discriminated from CD14+CD16- classical monocytes by CXCR1 expression and the capacity to suppress T cell proliferation. Collectively, our findings suggest that the aberrant expansion of neutrophil-like monocytes under inflammatory conditions is a process conserved between mouse and human, which may be beneficial for the resolution of inflammation.
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20
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Quo Vadis? Immunodynamics of Myeloid Cells after Myocardial Infarction. Int J Mol Sci 2022; 23:ijms232415814. [PMID: 36555456 PMCID: PMC9779515 DOI: 10.3390/ijms232415814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/09/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022] Open
Abstract
Myocardial infarction (MI), a major contributor to worldwide morbidity and mortality, is caused by a lack of blood flow to the heart. Affected heart tissue becomes ischemic due to deficiency of blood perfusion and oxygen delivery. In case sufficient blood flow cannot be timely restored, cardiac injury with necrosis occurs. The ischemic/necrotic area induces a systemic inflammatory response and hundreds of thousands of leukocytes are recruited from the blood to the injured heart. The blood pool of leukocytes is rapidly depleted and urgent re-supply of these cells is needed. Myeloid cells are generated in the bone marrow (BM) and spleen, released into the blood, travel to sites of need, extravasate and accumulate inside tissues to accomplish various functions. In this review we focus on the "leukocyte supply chain" and will separately evaluate different myeloid cell compartments (BM, spleen, blood, heart) in steady state and after MI. Moreover, we highlight the local and systemic kinetics of extracellular factors, chemokines and danger signals involved in the regulation of production/generation, release, transportation, uptake, and activation of myeloid cells during the inflammatory phase of MI.
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21
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Miyazaki H, Kinoshita M, Nakashima H, Nakamura S, Saitoh D. Pioglitazone Modifies Kupffer Cell Function and Protects against Escherichia coli-Induced Bacteremia in Burned Mice. Int J Mol Sci 2022; 23:12746. [PMID: 36361535 PMCID: PMC9657905 DOI: 10.3390/ijms232112746] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/12/2022] [Accepted: 10/20/2022] [Indexed: 01/24/2023] Open
Abstract
Infectious complications and subsequent sepsis in severely burned patients lead to high morbidity and mortality in response to uncontrolled innate immune responses mediated by macrophages. Peroxisome proliferator-activated receptor gamma (PPARγ) has anti-inflammatory activity and acts as a master regulator of macrophage polarization. In this study, we investigated whether the administration of a PPARγ agonist could modulate the Kupffer cell phenotype and thereby ameliorate the dysregulated innate response during post-burn bacterial infection. C57BL/6 mice were subjected to severe burns and randomized to receive either the PPARγ agonist, pioglitazone, or the vehicle control five days after injury, followed by the subsequent analysis of hepatic macrophages. Survival from the bacterial infection was monitored for seven days. Pioglitazone protected burned mice against bacterial infection. A single treatment with pioglitazone significantly enhanced phagocytosis, phagosome acidification, bacterial clearance, and reduction in inflammatory mediators in Kupffer cells. In conclusion, PPARγ activation by pioglitazone prevents clinical deterioration due to post-burn bacterial infection and improves survival. Our findings suggest that pioglitazone may be an effective therapeutic candidate for post-burn infectious complications.
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Affiliation(s)
- Hiromi Miyazaki
- Division of Biomedical Engineering, National Defense Medical College Research Institute, Saitama 359-8513, Japan
| | - Manabu Kinoshita
- Department of Immunology and Microbiology, National Defense Medical College, Saitama 359-8513, Japan
| | - Hiroyuki Nakashima
- Department of Immunology and Microbiology, National Defense Medical College, Saitama 359-8513, Japan
| | - Shingo Nakamura
- Division of Biomedical Engineering, National Defense Medical College Research Institute, Saitama 359-8513, Japan
| | - Daizoh Saitoh
- Division of Traumatology, National Defense Medical College Research Institute, Saitama 359-8513, Japan
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22
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Sharma A, Blériot C, Currenti J, Ginhoux F. Oncofetal reprogramming in tumour development and progression. Nat Rev Cancer 2022; 22:593-602. [PMID: 35999292 DOI: 10.1038/s41568-022-00497-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/06/2022] [Indexed: 12/12/2022]
Abstract
Embryonic development is characterized by rapidly dividing cells, cellular plasticity and a highly vascular microenvironment. These features are similar to those of tumour tissue, in that malignant cells are characterized by their ability to proliferate and exhibit cellular plasticity. The tumour microenvironment also often includes immunosuppressive features. Reciprocal communication between various cellular subpopulations enables fetal and tumour tissues to proliferate, migrate and escape immune responses. Fetal-like reprogramming has been demonstrated in the tumour microenvironment, indicating extraordinary cellular plasticity and bringing an additional layer of cellular heterogeneity. More importantly, some of these features are also present during inflammation. This Perspective discusses the similarity between embryogenesis, inflammation and tumorigenesis, and describes the mechanisms of oncofetal reprogramming that enable tumour cells to escape from immune responses, promoting tumour growth and metastasis.
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Affiliation(s)
- Ankur Sharma
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, Western Australia, Australia.
- Curtin Medical School, Curtin University, Bentley, Western Australia, Australia.
- Curtin Health Innovation Research Institute, Curtin University, Bentley, Western Australia, Australia.
- Institute of Molecular and Cellular Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.
| | | | - Jennifer Currenti
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, Western Australia, Australia
- Curtin Medical School, Curtin University, Bentley, Western Australia, Australia
| | - Florent Ginhoux
- INSERM U1015, Institut Gustave Roussy, Villejuif, France.
- Singapore Immunology Network, Agency for Science, Technology and Research (A∗STAR), Singapore, Singapore.
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Translational Immunology Institute, SingHealth Duke-NUS Academic Medical Centre, Singapore, Singapore.
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23
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Aegerter H, Lambrecht BN, Jakubzick CV. Biology of lung macrophages in health and disease. Immunity 2022; 55:1564-1580. [PMID: 36103853 DOI: 10.1016/j.immuni.2022.08.010] [Citation(s) in RCA: 153] [Impact Index Per Article: 76.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 12/14/2022]
Abstract
Tissue-resident alveolar and interstitial macrophages and recruited macrophages are critical players in innate immunity and maintenance of lung homeostasis. Until recently, assessing the differential functional contributions of tissue-resident versus recruited macrophages has been challenging because they share overlapping cell surface markers, making it difficult to separate them using conventional methods. This review describes how scRNA-seq and spatial transcriptomics can separate these subpopulations and help unravel the complexity of macrophage biology in homeostasis and disease. First, we provide a guide to identifying and distinguishing lung macrophages from other mononuclear phagocytes in humans and mice. Second, we outline emerging concepts related to the development and function of the various lung macrophages in the alveolar, perivascular, and interstitial niches. Finally, we describe how different tissue states profoundly alter their functions, including acute and chronic lung disease, cancer, and aging.
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Affiliation(s)
- Helena Aegerter
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Bart N Lambrecht
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Department of Pulmonary Medicine, ErasmusMC, Rotterdam, the Netherlands
| | - Claudia V Jakubzick
- Department of Microbiology and Immunology, Dartmouth Geisel School of Medicine, Hanover, NH, USA.
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24
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Kang Q, Li L, Pang Y, Zhu W, Meng L. An update on Ym1 and its immunoregulatory role in diseases. Front Immunol 2022; 13:891220. [PMID: 35967383 PMCID: PMC9366555 DOI: 10.3389/fimmu.2022.891220] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/06/2022] [Indexed: 11/23/2022] Open
Abstract
Ym1 is a rodent-specific chitinase-like protein (CLP) lacking catalytic activity, whose cellular origins are mainly macrophages, neutrophils and other cells. Although the detailed function of Ym1 remains poorly understood, Ym1 has been generally recognized as a fundamental feature of alternative activation of macrophages in mice and hence one of the prevalent detecting targets in macrophage phenotype distinguishment. Studies have pointed out that Ym1 may have regulatory effects, which are multifaceted and even contradictory, far more than just a mere marker. Allergic lung inflammation, parasite infection, autoimmune diseases, and central nervous system diseases have been found associations with Ym1 to varying degrees. Thus, insights into Ym1’s role in diseases would help us understand the pathogenesis of different diseases and clarify the genuine roles of CLPs in mammals. This review summarizes the information on Ym1 from the gene to its expression and regulation and focuses on the association between Ym1 and diseases.
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Affiliation(s)
- Qi Kang
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- Department of Clinical Medicine, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Luyao Li
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- Department of Clinical Medicine, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Yucheng Pang
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- Department of Clinical Medicine, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Wenhua Zhu
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- *Correspondence: Wenhua Zhu, ; Liesu Meng,
| | - Liesu Meng
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- National Joint Engineering Research Center of Biodiagnostics and Biotherapy, Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Wenhua Zhu, ; Liesu Meng,
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25
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Beddingfield BJ, Sugimoto C, Wang E, Weaver SC, Russell-Lodrigue KE, Killeen SZ, Kuroda MJ, Roy CJ. Phenotypic and Kinetic Changes of Myeloid Lineage Cells in Innate Response to Chikungunya Infection in Cynomolgus Macaques. Viral Immunol 2022; 35:192-199. [PMID: 35333631 PMCID: PMC9063200 DOI: 10.1089/vim.2021.0171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Chikungunya (CHIKV) is an emerging worldwide viral threat. The immune response to infection can lead to protection and convalescence or result in long-term sequelae such as arthritis. Early innate immune events during acute infection have been characterized for some cell types, but more must be elucidated with respect to cellular responses of monocytes and other myeloid lineage cells. In addition to their roles in protection and inflammation resolution, monocytes and macrophages are sites for viral replication and may also act as viral reservoirs. These cells are also found in joints postinfection, possibly playing a role in long-term CHIKV-induced pathology. We examined kinetic and phenotypic changes in myeloid lineage cells, including monocytes, in cynomolgus macaques early after experimental infection with CHIKV. We found increased proliferation of monocytes and decreased proliferation of myeloid dendritic cells early during infection, with an accompanying decrease in absolute numbers of both cell types, as well as a simultaneous increase in plasmacytoid dendritic cell number. An increase in CD16 and CD14 was seen along with a decrease in monocyte Human Leukocyte Antigen-DR isotype expression within 3 days of infection, potentially indicating monocyte deactivation. A transient decrease in T cells, B cells, and natural killer cells correlated with lymphocytopenia observed during human infections with CHIKV. CD4+ T cell proliferation decreased in blood, indicating relocation of cells to effector sites. These data indicate CHIKV influences proliferation rates and kinetics of myeloid lineage cells early during infection and may prove useful in development of therapeutics and evaluation of infection-induced pathogenesis.
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Affiliation(s)
- Brandon J Beddingfield
- Division of Microbiology, Tulane National Primate Research Center, Covington, Louisiana, USA
| | - Chie Sugimoto
- Division of Host Defense, Institute for Frontier Medicine, Dokkyo Medical University, Shimotsuga-gun, Japan
| | - Eryu Wang
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Scott C Weaver
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA.,World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, USA
| | - Kasi E Russell-Lodrigue
- Division of Veterinary Medicine, Tulane National Primate Research Center, Covington, Louisiana, USA
| | - Stephanie Z Killeen
- Division of Microbiology, Tulane National Primate Research Center, Covington, Louisiana, USA
| | - Marcelo J Kuroda
- Center for Immunology and Infectious Diseases, and California National Primate Research Center, University of California, Davis, California, USA
| | - Chad J Roy
- Division of Microbiology, Tulane National Primate Research Center, Covington, Louisiana, USA.,Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, Louisiana, USA
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26
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Teh YC, Chooi MY, Liu D, Kwok I, Lai GC, Ayub Ow Yong L, Ng M, Li JLY, Tan Y, Evrard M, Tan L, Liong KH, Leong K, Goh CC, Chan AYJ, Shadan NB, Mantri CK, Hwang YY, Cheng H, Cheng T, Yu W, Tey HL, Larbi A, St John A, Angeli V, Ruedl C, Lee B, Ginhoux F, Chen SL, Ng LG, Ding JL, Chong SZ. Transitional premonocytes emerge in the periphery for host defense against bacterial infections. SCIENCE ADVANCES 2022; 8:eabj4641. [PMID: 35245124 PMCID: PMC8896792 DOI: 10.1126/sciadv.abj4641] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Circulating Ly6Chi monocytes often undergo cellular death upon exhaustion of their antibacterial effector functions, which limits their capacity for subsequent macrophage differentiation. This shrouds the understanding on how the host replaces the tissue-resident macrophage niche effectively during bacterial invasion to avert infection morbidity. Here, we show that proliferating transitional premonocytes (TpMos), an immediate precursor of mature Ly6Chi monocytes (MatMos), were mobilized into the periphery in response to acute bacterial infection and sepsis. TpMos were less susceptible to apoptosis and served as the main source of macrophage replenishment when MatMos were vulnerable toward bacteria-induced cellular death. Furthermore, TpMo and its derived macrophages contributed to host defense by balancing the proinflammatory cytokine response of MatMos. Consequently, adoptive transfer of TpMos improved the survival outcome of lethal sepsis. Our findings hence highlight a protective role for TpMos during bacterial infections and their contribution toward monocyte-derived macrophage heterogeneity in distinct disease outcomes.
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Affiliation(s)
- Ye Chean Teh
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
- Department of Biological Science, National University of Singapore (NUS), Singapore 117543, Singapore
| | - Ming Yao Chooi
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore
| | - Dehua Liu
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Immanuel Kwok
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Ghee Chuan Lai
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Liyana Ayub Ow Yong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore
- Genome Institute of Singapore, A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138672, Singapore
| | - Melissa Ng
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Jackson L. Y. Li
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Yingrou Tan
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
- National Skin Centre, 1 Mandalay Road, Singapore 308205, Singapore
| | - Maximilien Evrard
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Leonard Tan
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore
| | - Ka Hang Liong
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Keith Leong
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Chi Ching Goh
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Andrew Y. J. Chan
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Nurhidaya Binte Shadan
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Chinmay Kumar Mantri
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - You Yi Hwang
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Hui Cheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Centre for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Tao Cheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Centre for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Weimiao Yu
- Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore 138673, Singapore
| | - Hong Liang Tey
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore
- National Skin Centre, 1 Mandalay Road, Singapore 308205, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | - Anis Larbi
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Ashley St John
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Veronique Angeli
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore
| | - Christiane Ruedl
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
| | - Bernett Lee
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
- Shanghai Institute of Immunology, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Swaine L. Chen
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore
- Genome Institute of Singapore, A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138672, Singapore
| | - Lai Guan Ng
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore
- State Key Laboratory of Experimental Hematology, National Clinical Research Centre for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
- Corresponding author. (L.G.N.); (J.L.D.); (S.Z.C.)
| | - Jeak Ling Ding
- Department of Biological Science, National University of Singapore (NUS), Singapore 117543, Singapore
- Corresponding author. (L.G.N.); (J.L.D.); (S.Z.C.)
| | - Shu Zhen Chong
- Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 138648, Singapore
- Corresponding author. (L.G.N.); (J.L.D.); (S.Z.C.)
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27
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Shiraishi M, Yamaguchi A, Suzuki K. Nrg1/ErbB signaling-mediated regulation of fibrosis after myocardial infarction. FASEB J 2022; 36:e22150. [PMID: 34997943 DOI: 10.1096/fj.202101428rr] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 11/11/2022]
Abstract
Appropriate fibrotic tissue formation after myocardial infarction (MI) is crucial to the maintenance of the heart's structure. M2-like macrophages play a vital role in post-MI fibrosis by activating cardiac fibroblasts. Because the mechanism by which post-MI cardiac fibrosis is regulated is not fully understood, we investigated, in vitro and in vivo, the cellular and molecular mechanisms of post-MI fibrotic tissue formation, especially those related to the regulation of cellular senescence and apoptosis. CD206+ F4/80+ CD11b+ M2-like macrophages collected from mouse hearts on post-MI day 7 showed increased expression of neuregulin 1 (Nrg1). Nrg1 receptor epidermal growth factor receptors ErbB2 and ErbB4 were expressed on cardiac fibroblasts in the infarct area. M2-like macrophage-derived Nrg1 suppressed both hydrogen peroxide-induced senescence and apoptosis of fibroblasts, whereas blockade of ErbB function significantly accelerated both processes. M2-like macrophage-derived Nrg1/ErbB/PI3K/Akt signaling, shown to be related to anti-senescence, was activated in damaged cardiac fibroblasts. Interestingly, systemic blockade of ErbB function in MI model mice enhanced senescence and apoptosis of cardiac fibroblasts and exacerbated inflammation. Further, increased accumulation of M2-like macrophages resulted in excessive post-MI progression of fibrosis in mice hearts. The molecular mechanism underlying the regulation of fibrotic tissue formation in the infarcted myocardium was shown in part to be attenuation of apoptosis and senescence of cardiac fibroblasts by the activation of Nrg1/ErbB/PI3K/Akt signaling. M2-like macrophage-mediated regulation of Nrg1/ErbB signaling has a substantial effect on fibrotic tissue formation in the infarcted adult mouse heart and is critical for suppressing the progression of senescence and apoptosis of cardiac fibroblasts.
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Affiliation(s)
- Manabu Shiraishi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan.,William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Atsushi Yamaguchi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Ken Suzuki
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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28
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The scaffold-dependent function of RIPK1 in dendritic cells promotes injury-induced colitis. Mucosal Immunol 2022; 15:84-95. [PMID: 34462571 PMCID: PMC8732271 DOI: 10.1038/s41385-021-00446-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 07/14/2021] [Accepted: 07/31/2021] [Indexed: 02/04/2023]
Abstract
Receptor interacting protein kinase 1 (RIPK1) is a cytosolic multidomain protein that controls cell life and death. While RIPK1 promotes cell death through its kinase activity, it also functions as a scaffold protein to promote cell survival by inhibiting FADD-caspase 8-dependent apoptosis and RIPK3-MLKL-dependent necroptosis. This pro-survival function is highlighted by excess cell death and perinatal lethality in Ripk1-/- mice. Recently, loss of function mutation of RIPK1 was found in patients with immunodeficiency and inflammatory bowel diseases. Hematopoietic stem cell transplantation restored not only immunodeficiency but also intestinal inflammatory pathology, indicating that RIPK1 in hematopoietic cells is critical to maintain intestinal immune homeostasis. Here, we generated dendritic cell (DC)-specific Ripk1-/- mice in a genetic background with loss of RIPK1 kinase activity and found that the mice developed spontaneous colonic inflammation characterized by increased neutrophil and Ly6C+ monocytes. In addition, these mice were highly resistant to injury-induced colitis. The increased colonic inflammation and the resistance to colitis were restored by dual inactivation of RIPK3 and FADD, but not by inhibition of RIPK3, MLKL, or ZBP1 alone. Altogether, these results reveal a scaffold activity-dependent role of RIPK1 in DC-mediated maintenance of colonic immune homeostasis.
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29
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Chan NR, Hwang B, Ratner BD, Bryers JD. Monocytes contribute to a pro-healing response in 40 μm diameter uniform-pore, precision-templated scaffolds. J Tissue Eng Regen Med 2021; 16:297-310. [PMID: 34964563 DOI: 10.1002/term.3280] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 12/01/2021] [Accepted: 12/21/2021] [Indexed: 11/11/2022]
Abstract
Porous precision-templated scaffolds (PTS) with uniformly distributed 40 μm spherical pores have shown a remarkable ability in immunomodulating resident cells for tissue regeneration. While the pore size mediated pro-healing response observed only in 40 μm pore PTS has been attributed to selective macrophage polarization, monocyte recruitment and phenotype have largely been uncharacterized in regulating implant outcome. Here, we employ a double transgenic mouse model for myeloid characterization and a multifaceted phenotyping approach to quantify monocyte dynamics within subcutaneously implanted PTS. Within 40 μm PTS, myeloid cells were found to preferentially infiltrate into the scaffold. Additionally, macrophage receptor with collagenous structure (MARCO), an innate activation marker, was significantly upregulated within 40 μm PTS. When 40 μm PTS were implanted in monocyte-depleted mice, the transcription of MARCO was significantly decreased and an increase in pro-inflammatory inducible nitric oxide synthase (iNOS) and tumor necrosis factor alpha (TNFα) were observed. Typical of a foreign body response (FBR), 100 μm PTS significantly upregulated pro-inflammatory iNOS, secreted higher amounts of TNFα, and displayed a pore size dependent morphology compared to 40 μm PTS. Overall, these results identify a pore size dependent modulation of circulating monocytes and implicates MARCO expression as a defining subset of monocytes that appears to be responsible for regulating a pro-healing host response.
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Affiliation(s)
- Nathan R Chan
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington, USA.,Department of Bioengineering, University of Washington, Seattle, Washington, USA
| | - Billanna Hwang
- Center for Lung Biology, University of Washington, Seattle, Washington, USA.,Department of Surgery, University of Washington, Seattle, Washington, USA
| | - Buddy D Ratner
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington, USA.,Department of Bioengineering, University of Washington, Seattle, Washington, USA.,Department of Chemical Engineering, University of Washington, Seattle, Washington, USA
| | - James D Bryers
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington, USA.,Department of Bioengineering, University of Washington, Seattle, Washington, USA
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30
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Cao G, He W, Fan Y, Li X. Exploring the match between the degradation of the ECM-based composites and tissue remodeling in a full-thickness abdominal wall defect model. Biomater Sci 2021; 9:7895-7910. [PMID: 34693955 DOI: 10.1039/d1bm01096d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The repair of abdominal wall defects is currently a clinical challenge. A naturally derived extracellular matrix (ECM) such as small intestine submucosa (SIS) has received great attention in abdominal wall defect repair because of its remarkable bioactivity, biodegradability and tissue regeneration. The match between material degradation and tissue remodeling is very important for the realization of ideal repair effectiveness. In this study, a near-infrared (NIR) fluorescent dye Cy5.5 NHS ester was used to label ECM-based (ECMB) composites consisting of SIS and chitosan/elastin electrospun nanofibers for monitoring material degradation. The tissue remodeling in the ECMB composites for a full-thickness abdominal wall defect repair was systematically investigated by a series of tests including wall thickness measurement, muscle regeneration analysis and angiogenesis assessment. The main findings were: (1) real-time and noninvasive degradation monitoring of the ECMB composites until complete degradation could be realized by chemical conjugation with a Cy5.5 NHS ester. (2) In a full-thickness abdominal wall defect model, the explant thickness could be used as an intuitional indicator for evaluating the tissue remodeling efficiency in the ECMB composites, and the accuracy of this indicator was verified by various examinations including collagen deposition, angiogenesis, and muscle regeneration. The present study could provide new insight into evaluating tissue repair effectiveness of the ECMB composites.
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Affiliation(s)
- Guangxiu Cao
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Wei He
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
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31
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Tomas L, Prica F, Schulz C. Trafficking of Mononuclear Phagocytes in Healthy Arteries and Atherosclerosis. Front Immunol 2021; 12:718432. [PMID: 34759917 PMCID: PMC8573388 DOI: 10.3389/fimmu.2021.718432] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/30/2021] [Indexed: 12/15/2022] Open
Abstract
Monocytes and macrophages play essential roles in all stages of atherosclerosis – from early precursor lesions to advanced stages of the disease. Intima-resident macrophages are among the first cells to be confronted with the influx and retention of apolipoprotein B-containing lipoproteins at the onset of hypercholesterolemia and atherosclerosis development. In this review, we outline the trafficking of monocytes and macrophages in and out of the healthy aorta, as well as the adaptation of their migratory behaviour during hypercholesterolemia. Furthermore, we discuss the functional and ontogenetic composition of the aortic pool of mononuclear phagocytes and its link to the atherosclerotic disease process. The development of mouse models of atherosclerosis regression in recent years, has enabled scientists to investigate the behaviour of monocytes and macrophages during the resolution of atherosclerosis. Herein, we describe the dynamics of these mononuclear phagocytes upon cessation of hypercholesterolemia and how they contribute to the restoration of tissue homeostasis. The aim of this review is to provide an insight into the trafficking, fate and disease-relevant dynamics of monocytes and macrophages during atherosclerosis, and to highlight remaining questions. We focus on the results of rodent studies, as analysis of cellular fates requires experimental manipulations that cannot be performed in humans but point out findings that could be replicated in human tissues. Understanding of the biology of macrophages in atherosclerosis provides an important basis for the development of therapeutic strategies to limit lesion formation and promote plaque regression.
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Affiliation(s)
- Lukas Tomas
- Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Filip Prica
- Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Christian Schulz
- Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
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32
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Orozco SL, Canny SP, Hamerman JA. Signals governing monocyte differentiation during inflammation. Curr Opin Immunol 2021; 73:16-24. [PMID: 34411882 DOI: 10.1016/j.coi.2021.07.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/15/2021] [Indexed: 12/24/2022]
Abstract
Monocytes are innate immune cells that develop in the bone marrow and are continually released into circulation, where they are poised to enter tissues in response to homeostatic or inflammatory cues. Monocytes are highly plastic cells that can differentiate in tissues into a variety of monocyte-derived cells to replace resident tissue macrophages, promote inflammatory responses, or resolution of inflammation. As such, monocytes can support tissue homeostasis as well as productive and pathogenic immune responses. Recent work shows previously unappreciated heterogeneity in monocyte development and differentiation in the steady state and during infectious, autoimmune, and inflammatory diseases. Monocyte-derived cells can differentiate via signals from cytokines, pattern recognition receptors or other factors, which can influence development in the bone marrow or in tissues. An improved understanding of these monocyte-derived cells and the signals that drive their differentiation in distinct inflammatory settings could allow for targeting these pathways in pathological inflammation.
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Affiliation(s)
- Susana L Orozco
- Center for Fundamental Immunology, Benaroya Research Institute, 1201 9th Avenue, Seattle 98101, WA, USA
| | - Susan P Canny
- Center for Fundamental Immunology, Benaroya Research Institute, 1201 9th Avenue, Seattle 98101, WA, USA; Department of Pediatrics, University of Washington, 1959 NE Pacific St., Seattle 98195, WA, USA
| | - Jessica A Hamerman
- Center for Fundamental Immunology, Benaroya Research Institute, 1201 9th Avenue, Seattle 98101, WA, USA; Department of Immunology, University of Washington, 750 Republican St., Seattle 98109, WA, USA.
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33
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Kosuge A, Kunisawa K, Arai S, Sugawara Y, Shinohara K, Iida T, Wulaer B, Kawai T, Fujigaki H, Yamamoto Y, Saito K, Nabeshima T, Mouri A. Heat-sterilized Bifidobacterium breve prevents depression-like behavior and interleukin-1β expression in mice exposed to chronic social defeat stress. Brain Behav Immun 2021; 96:200-211. [PMID: 34062230 DOI: 10.1016/j.bbi.2021.05.028] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 12/12/2022] Open
Abstract
Major depressive disorder (MDD) is a common and serious psychiatric disease that involves brain inflammation. Bifidobacterium breve is commonly used as a probiotic and was shown to improve colitis and allergic diseases by suppressing the inflammatory response. Heat-sterilized B. breve has beneficial effects on inflammation. We hypothesize, therefore, that this probiotic might reduce depression symptoms. We tested this is a mouse model of social defeat stress. C57BL/6J mice exposed to chronic social defeat stress (CSDS) for five consecutive days developed a mild depression-like behavior characterized by a social interaction impairment. CSDS also altered the gut microbiota composition, such as increased abundance of Bacilli, Bacteroidia, Mollicutes, and Verrucomicrobiae classes and decreased Erysipelotrichi class. The prophylactic effect of heat-sterilized B. breve as a functional food ingredient was evaluated on the depression-like behavior in mice. The supplementation started two weeks before and lasted two weeks after the last exposure to CSDS. Two weeks after CSDS, the mice showed deficits in social interaction and increased levels of inflammatory cytokines, including interleukin-1β (IL-1β) in the prefrontal cortex (PFC) and hippocampus (HIP). Heat-sterilized B. breve supplementation significantly prevented social interaction impairment, suppressed IL-1β increase in the PFC and HIP, and modulated the alteration of the gut microbiota composition induced by CSDS. These findings suggest that heat-sterilized B. breve prevents depression-like behavior and IL-1β expression induced by CSDS through modulation of the gut microbiota composition in mice. Therefore, heat-sterilized B. breve used as an ingredient of functional food might prevent MDD.
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Affiliation(s)
- Aika Kosuge
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Sciences, Aichi, Japan
| | - Kazuo Kunisawa
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Sciences, Aichi, Japan
| | - Satoshi Arai
- Morinaga Milk Industry Co., Ltd., R&D Division, Food Ingredients & Technology Institute, Kanagawa, Japan
| | - Yumika Sugawara
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Sciences, Aichi, Japan
| | - Katsuki Shinohara
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Sciences, Aichi, Japan
| | - Tsubasa Iida
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Sciences, Aichi, Japan
| | - Bolati Wulaer
- Advanced Diagnostic System Research Laboratory, Fujita Health University Graduate School of Health Science, Aichi, Japan; Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Sciences, Aichi, Japan
| | - Tomoki Kawai
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Sciences, Aichi, Japan
| | - Hidetsugu Fujigaki
- Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Sciences, Aichi, Japan
| | - Yasuko Yamamoto
- Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Sciences, Aichi, Japan
| | - Kuniaki Saito
- Advanced Diagnostic System Research Laboratory, Fujita Health University Graduate School of Health Science, Aichi, Japan; Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Sciences, Aichi, Japan; Japanese Drug Organization of Appropriate Use and Research, Aichi, Japan
| | - Toshitaka Nabeshima
- Advanced Diagnostic System Research Laboratory, Fujita Health University Graduate School of Health Science, Aichi, Japan; Japanese Drug Organization of Appropriate Use and Research, Aichi, Japan
| | - Akihiro Mouri
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Sciences, Aichi, Japan; Japanese Drug Organization of Appropriate Use and Research, Aichi, Japan.
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34
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Poczobutt JM, Mikosz AM, Poirier C, Beatman EL, Serban KA, Gally F, Cao D, McCubbrey AL, Cornell CF, Schweitzer KS, Berdyshev EV, Bronova IA, Paris F, Petrache I. Altered Macrophage Function Associated with Crystalline Lung Inflammation in Acid Sphingomyelinase Deficiency. Am J Respir Cell Mol Biol 2021; 64:629-640. [PMID: 33662226 DOI: 10.1165/rcmb.2020-0229oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Deficiency of ASM (acid sphingomyelinase) causes the lysosomal storage Niemann-Pick disease (NPD). Patients with NPD type B may develop progressive interstitial lung disease with frequent respiratory infections. Although several investigations using the ASM-deficient (ASMKO) mouse NPD model revealed inflammation and foamy macrophages, there is little insight into the pathogenesis of NPD-associated lung disease. Using ASMKO mice, we report that ASM deficiency is associated with a complex inflammatory phenotype characterized by marked accumulation of monocyte-derived CD11b+ macrophages and expansion of airspace/alveolar CD11c+ CD11b- macrophages, both with increased size, granularity, and foaminess. Both the alternative and classical pathways were activated, with decreased in situ phagocytosis of opsonized (Fc-coated) targets, preserved clearance of apoptotic cells (efferocytosis), secretion of Th2 cytokines, increased CD11c+/CD11b+ cells, and more than a twofold increase in lung and plasma proinflammatory cytokines. Macrophages, neutrophils, eosinophils, and noninflammatory lung cells of ASMKO lungs also exhibited marked accumulation of chitinase-like protein Ym1/2, which formed large eosinophilic polygonal Charcot-Leyden-like crystals. In addition to providing insight into novel features of lung inflammation that may be associated with NPD, our report provides a novel connection between ASM and the development of crystal-associated lung inflammation with alterations in macrophage biology.
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Affiliation(s)
| | | | | | | | - Karina A Serban
- National Jewish Health, Denver, Colorado.,University of Colorado, Denver, Colorado
| | - Fabienne Gally
- National Jewish Health, Denver, Colorado.,University of Colorado, Denver, Colorado
| | | | | | | | - Kelly S Schweitzer
- National Jewish Health, Denver, Colorado.,University of Colorado, Denver, Colorado
| | | | | | - François Paris
- Institut de Cancérologie de l'Ouest, Saint-Herblain, France; and.,Le Regional Center for Research in Cancerology and Immunology Nantes/Angers, Université de Nantes, Nantes, France
| | - Irina Petrache
- National Jewish Health, Denver, Colorado.,Indiana University, Indianapolis, Indiana.,University of Colorado, Denver, Colorado
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35
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Shen Q, Wang Y, Chen J, Ma L, Huang X, Tang SCW, Lan H, Jiang H, Chen J. Single-Cell RNA Sequencing Reveals the Immunological Profiles of Renal Allograft Rejection in Mice. Front Immunol 2021; 12:693608. [PMID: 34367152 PMCID: PMC8340022 DOI: 10.3389/fimmu.2021.693608] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 06/29/2021] [Indexed: 01/05/2023] Open
Abstract
Allograft rejection is a common immunological feature in renal transplantation and is associated with reduced graft survival. A mouse renal allograft rejection model was induced and single-cell RNA sequencing (scRNA-seq) data of CD45+ leukocytes in kidney allografts on days 7 (D7) and 15 (D15) after operation was analyzed to reveal a full immunological profiling. We identified 20 immune cell types among 10,921 leukocytes. Macrophages and CD8+ T cells constituted the main populations on both timepoints. In the process from acute rejection (AR) towards chronic rejection (CR), the proportion of proliferating and naïve CD8+ T cells dropped significantly. Both B cells and neutrophils decreased by about 3 folds. On the contrary, the proportion of macrophages and dendritic cells (DCs) increased significantly, especially by about a 4.5-fold increase in Ly6cloMrc1+ macrophages and 2.6 folds increase in Ly6cloEar2+ macrophages. Moreover, myeloid cells harbored the richest ligand and receptor (LR) pairs with other cells, particularly for chemokine ligands such as Cxcl9, Cxcl10, Cxcl16 and Yars. However, macrophages with weak response to interferon gamma (IFNg) contributed to rejection chronicization. To conclude, reduction in CD8 T cells, B cells and neutrophils while increasing in Ly6cloMrc1+ macrophages and Ly6cloEar2+ macrophages, may contribute significantly to the progress from AR towards CR.
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Affiliation(s)
- Qixia Shen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Nephropathy, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
- Department of Medicine & Therapeutics and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yucheng Wang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Nephropathy, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
| | - Jiaoyi Chen
- Department of Medicine & Therapeutics and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Lifeng Ma
- Center for Stem Cell and Regenerative Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoru Huang
- Department of Medicine & Therapeutics and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Guangdong-Hong Kong Joint Laboratory on Immunological and Genetic Kidney Diseases, Guangdong Academy of Medical Sciences, Guangdong Provincial People’s Hospital, Guangzhou, China
| | - Sydney C. W. Tang
- Division of Nephrology, Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Huiyao Lan
- Department of Medicine & Therapeutics and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Hong Jiang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Nephropathy, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
| | - Jianghua Chen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Nephropathy, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Institute of Nephrology, Zhejiang University, Hangzhou, China
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36
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Shibuya T, Kamiyama A, Sawada H, Kikuchi K, Maruyama M, Sawado R, Ikeda N, Asano K, Kurotaki D, Tamura T, Yoneda A, Imada K, Satoh T, Akira S, Tanaka M, Yotsumoto S. Immunoregulatory Monocyte Subset Promotes Metastasis Associated With Therapeutic Intervention for Primary Tumor. Front Immunol 2021; 12:663115. [PMID: 34163472 PMCID: PMC8215602 DOI: 10.3389/fimmu.2021.663115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/12/2021] [Indexed: 12/24/2022] Open
Abstract
Systemic and local inflammation associated with therapeutic intervention of primary tumor occasionally promotes metastatic recurrence in mouse and human. However, it remains unclear what types of immune cells are involved in this process. Here, we found that the tissue-repair-promoting Ym1+Ly6Chi monocyte subset expanded as a result of systemic and local inflammation induced by intravenous injection of lipopolysaccharide or resection of primary tumor and promoted lung metastasis originating from circulating tumor cells (CTCs). Deletion of this subset suppressed metastasis induced by the inflammation. Furthermore, transfer of Ym1+Ly6Chi monocytes into naïve mice promoted lung metastasis in the mice. Ym1+Ly6Chi monocytes highly expressed matrix metalloproteinase-9 (MMP-9) and CXCR4. MMP-9 inhibitor and CXCR4 antagonist decreased Ym1+Ly6Chi-monocyte-promoted lung metastasis. These findings indicate that Ym1+Ly6Chi monocytes are therapeutic target cells for metastasis originating from CTCs associated with systemic and local inflammation. In addition, these findings provide a novel predictive cellular biomarker for metastatic recurrence after intervention for primary tumor.
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Affiliation(s)
- Takumi Shibuya
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Asami Kamiyama
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Hirotaka Sawada
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Kenta Kikuchi
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Mayu Maruyama
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Rie Sawado
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Naoki Ikeda
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Kenichi Asano
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Daisuke Kurotaki
- Department of Immunology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomohiko Tamura
- Department of Immunology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Advanced Medical Research Center, Yokohama City University, Yokohama, Japan
| | - Atsuko Yoneda
- Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Keisuke Imada
- Center for Fundamental Laboratory Education, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Takashi Satoh
- Department of Immune Regulation, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shizuo Akira
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
| | - Masato Tanaka
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Satoshi Yotsumoto
- Laboratory of Immune Regulation, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
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37
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Hegde S, Leader AM, Merad M. MDSC: Markers, development, states, and unaddressed complexity. Immunity 2021; 54:875-884. [PMID: 33979585 DOI: 10.1016/j.immuni.2021.04.004] [Citation(s) in RCA: 294] [Impact Index Per Article: 98.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 01/20/2021] [Accepted: 04/08/2021] [Indexed: 12/19/2022]
Abstract
Myeloid-derived suppressor cells (MDSCs) are one of the most discussed biological entities in immunology. While the context and classification of this group of cells has evolved, MDSCs most commonly describe cells arising during chronic inflammation, especially late-stage cancers, and are defined by their T cell immunosuppressive functions. This MDSC concept has helped explain myeloid phenomena associated with disease outcome, but currently lacks clear definitions and a unifying framework across pathologies. Here, we propose such a framework to classify MDSCs as discrete cell states based on activation signals in myeloid populations leading to suppressive modes characterized by specific, measurable effects. Developing this level of knowledge of myeloid states across pathological conditions may ultimately transform how disparate diseases are grouped and treated.
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Affiliation(s)
- Samarth Hegde
- The Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Andrew M Leader
- The Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Miriam Merad
- The Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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38
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The diverse roles of myeloid derived suppressor cells in mucosal immunity. Cell Immunol 2021; 365:104361. [PMID: 33984533 DOI: 10.1016/j.cellimm.2021.104361] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/21/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022]
Abstract
The mucosal immune system plays a vital role in protecting the host from the external environment. Its major challenge is to balance immune responses against harmful and harmless agents and serve as a 'homeostatic gate keeper'. Myeloid derived suppressor cells (MDSCs) are a heterogeneous population of undifferentiated cells that are characterized by an immunoregulatory and immunosuppressive phenotype. Herein we postulate that MDSCs may be involved in shaping immune responses related to mucosal immunity, due to their immunomodulatory and tissue remodeling functions. Until recently, MDSCs were investigated mainly in cancerous diseases, where they induce and contribute to an immunosuppressive and inflammatory environment that favors tumor development. However, it is now becoming clear that MDSCs participate in non-cancerous conditions such as chronic infections, autoimmune diseases, pregnancy, aging processes and immune tolerance to commensal microbiota at mucosal sites. Since MDSCs are found in the periphery only in small numbers under normal conditions, their role is highlighted during pathologies characterized by acute or chronic inflammation, when they accumulate and become activated. In this review, we describe several aspects of the current knowledge characterizing MDSCs and their involvement in the regulation of the mucosal epithelial barrier, their crosstalk with commensal microbiota and pathogenic microorganisms, and their complex interactions with a variety of surrounding regulatory and effector immune cells. Finally, we discuss the beneficial and harmful outcomes of the MDSC regulatory functions in diseases affecting mucosal tissues. We wish to illuminate the pivotal role of MDSCs in mucosal immunity, the limitations in our understanding of all the players and the intricate challenges stemming from the complex interactions of MDSCs with their environment.
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39
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Decano JL, Singh SA, Gasparotto Bueno C, Ho Lee L, Halu A, Chelvanambi S, Matamalas JT, Zhang H, Mlynarchik AK, Qiao J, Sharma A, Mukai S, Wang J, Anderson DG, Ozaki CK, Libby P, Aikawa E, Aikawa M. Systems Approach to Discovery of Therapeutic Targets for Vein Graft Disease: PPARα Pivotally Regulates Metabolism, Activation, and Heterogeneity of Macrophages and Lesion Development. Circulation 2021; 143:2454-2470. [PMID: 33821665 PMCID: PMC8212880 DOI: 10.1161/circulationaha.119.043724] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Supplemental Digital Content is available in the text. Vein graft failure remains a common clinical challenge. We applied a systems approach in mouse experiments to discover therapeutic targets for vein graft failure.
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Affiliation(s)
- Julius L Decano
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Sasha A Singh
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Cauê Gasparotto Bueno
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Lang Ho Lee
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Arda Halu
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Channing Division of Network Medicine (A.H., A.S., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Sarvesh Chelvanambi
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Joan T Matamalas
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Hengmin Zhang
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Andrew K Mlynarchik
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Jiao Qiao
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Amitabh Sharma
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Channing Division of Network Medicine (A.H., A.S., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Shin Mukai
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Jianguo Wang
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Daniel G Anderson
- Institutes for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge (D.G.A.)
| | - C Keith Ozaki
- Department of Medicine, Division of Vascular and Endovascular Surgery, Department of Surgery (C.K.O.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Peter Libby
- Center for Excellence in Vascular Biology (P.L., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Elena Aikawa
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Center for Excellence in Vascular Biology (P.L., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Department of Human Pathology, I.M. Sechenov First Moscow State Medical University of the Ministry of Health, Russia (E.A., M.A.)
| | - Masanori Aikawa
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division (J.L.D., S.A.S., C.G.B., L.H.L., A.H., S.C., J.T.M., H.Z., A.K.M., J.Q., A.S., S.M., J.W., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Channing Division of Network Medicine (A.H., A.S., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Center for Excellence in Vascular Biology (P.L., E.A., M.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Department of Human Pathology, I.M. Sechenov First Moscow State Medical University of the Ministry of Health, Russia (E.A., M.A.)
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40
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Ogawa K, Asano K, Yotsumoto S, Yamane T, Arita M, Hayashi Y, Harada H, Makino-Okamura C, Fukuyama H, Kondo K, Yamasoba T, Tanaka M. Frontline Science: Conversion of neutrophils into atypical Ly6G + SiglecF + immune cells with neurosupportive potential in olfactory neuroepithelium. J Leukoc Biol 2021; 109:481-496. [PMID: 32725843 DOI: 10.1002/jlb.1hi0620-190rr] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/15/2020] [Accepted: 06/15/2020] [Indexed: 12/11/2022] Open
Abstract
Neutrophils are generally considered as short-lived, homogenous, and terminally differentiated phagocytes that play crucial roles in conquering infection, although they occasionally cause severe collateral tissue damage or chronic inflammation. Recent reports have indicated that neutrophils also play a protective role in inflammation resolution and tissue repair. However, how terminally differentiated neutrophils have diverse functions remains unclear. Here, we show that neutrophils undergo conversion into Ly6G+ SiglecF+ double-positive cells expressing neurosupportive genes in the olfactory neuroepithelium (OE) under an inflammatory state. Through comprehensive flow cytometric analysis of murine nose, we identified Ly6G+ SiglecF+ double-positive cells that reside only in the OE under steady-state conditions. Double-positive cells were neutrophil-derived cells and increased by more than 10-fold during inflammation or tissue injury. We found that neutrophils infiltrate into the nose to express proinflammatory genes in the acute phase of inflammatory state, and they gradually change their surface markers and gene expression, expressing some neurogenesis-related genes in addition to inflammation related genes in the later phase. As the OE is known to have exceptionally high regeneration capacity as a nervous system, these findings suggest that neutrophils have the potential to contribute neurogenesis after conversion in peripheral nervous tissues, providing a challenge on a classic view of neutrophils as terminally differentiated leukocytes.
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Affiliation(s)
- Kei Ogawa
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
- Department of Otolaryngology - Head and Neck Surgery, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Kenichi Asano
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Satoshi Yotsumoto
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Tsuyoshi Yamane
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Division of Gastroenterology & Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Makoto Arita
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Yoshihiro Hayashi
- Laboratory of Oncology, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Hironori Harada
- Laboratory of Oncology, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Chieko Makino-Okamura
- Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Hidehiro Fukuyama
- Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Kenji Kondo
- Department of Otolaryngology - Head and Neck Surgery, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Tatsuya Yamasoba
- Department of Otolaryngology - Head and Neck Surgery, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Masato Tanaka
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
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41
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Ding ZC, Aboelella NS, Bryan L, Shi H, Zhou G. The Monocytes That Repopulate in Mice After Cyclophosphamide Treatment Acquire a Neutrophil Precursor Gene Signature and Immunosuppressive Activity. Front Immunol 2021; 11:594540. [PMID: 33569051 PMCID: PMC7868404 DOI: 10.3389/fimmu.2020.594540] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/07/2020] [Indexed: 12/21/2022] Open
Abstract
Cyclophosphamide (CTX) is a major component of the chemotherapy conditioning regimens used in the clinic to prepare cancer patients for hematopoietic stem cell transplantation or adoptive T cell therapy. Previous studies have shown that CTX given at nonmyeloablative doses in mice and patients leads to expansion of myeloid cells within which the monocytic subset exhibits immunosuppressive activity. However, the ontogeny and gene expression signature of these CTX-induced monocytes are not well-defined. Here, we report that the expansion of myeloid cells is a default process intrinsic to hematopoietic recovery after chemotherapy. During this process, the monocytes repopulated in mice acquire immunosuppressive activity, which can persist long after cessation of chemotherapy. Moreover, monocytes acquire a gene signature characteristic of neutrophil precursors, marked by increased proliferative capability and elevated expressions of multiple primary and secondary granules. We provide evidence that CTX-induced myeloid cell expansion is regulated by DNA methyltransferase 1 (Dnmt1) and dependent on chemotherapy-induced microbial translocation. These findings help advance our understanding of the differentiation, heterogeneity, and function of myeloid cells repopulating after chemotherapy.
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Affiliation(s)
- Zhi-Chun Ding
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Nada S Aboelella
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Locke Bryan
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Huidong Shi
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Gang Zhou
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA, United States
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42
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Dagkonaki A, Avloniti M, Evangelidou M, Papazian I, Kanistras I, Tseveleki V, Lampros F, Tselios T, Jensen LT, Möbius W, Ruhwedel T, Androutsou ME, Matsoukas J, Anagnostouli M, Lassmann H, Probert L. Mannan-MOG35-55 Reverses Experimental Autoimmune Encephalomyelitis, Inducing a Peripheral Type 2 Myeloid Response, Reducing CNS Inflammation, and Preserving Axons in Spinal Cord Lesions. Front Immunol 2020; 11:575451. [PMID: 33329540 PMCID: PMC7711156 DOI: 10.3389/fimmu.2020.575451] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/12/2020] [Indexed: 12/30/2022] Open
Abstract
CNS autoantigens conjugated to oxidized mannan (OM) induce antigen-specific T cell tolerance and protect mice against autoimmune encephalomyelitis (EAE). To investigate whether OM-peptides treat EAE initiated by human MHC class II molecules, we administered OM-conjugated murine myelin oligodendrocyte glycoprotein peptide 35-55 (OM-MOG) to humanized HLA-DR2b transgenic mice (DR2b.Ab°), which are susceptible to MOG-EAE. OM-MOG protected DR2b.Ab° mice against MOG-EAE by both prophylactic and therapeutic applications. OM-MOG reversed clinical symptoms, reduced spinal cord inflammation, demyelination, and neuronal damage in DR2b.Ab° mice, while preserving axons within lesions and inducing the expression of genes associated with myelin (Mbp) and neuron (Snap25) recovery in B6 mice. OM-MOG-induced tolerance was peptide-specific, not affecting PLP178-191-induced EAE or polyclonal T cell proliferation responses. OM-MOG-induced immune tolerance involved rapid induction of PD-L1- and IL-10-producing myeloid cells, increased expression of Chi3l3 (Ym1) in secondary lymphoid organs and characteristics of anergy in MOG-specific CD4+ T cells. The results show that OM-MOG treats MOG-EAE in a peptide-specific manner, across mouse/human MHC class II barriers, through induction of a peripheral type 2 myeloid cell response and T cell anergy, and suggest that OM-peptides might be useful for suppressing antigen-specific CD4+ T cell responses in the context of human autoimmune CNS demyelination.
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Affiliation(s)
- Anastasia Dagkonaki
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, Athens, Greece
| | - Maria Avloniti
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, Athens, Greece
| | - Maria Evangelidou
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, Athens, Greece
| | - Irini Papazian
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, Athens, Greece
| | - Ioannis Kanistras
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, Athens, Greece
| | - Vivian Tseveleki
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, Athens, Greece
| | - Fotis Lampros
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, Athens, Greece
| | | | - Lise Torp Jensen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Wiebke Möbius
- Electron Microscopy Core Unit, Department of Neurogenetics, Max Planck Institute of Experimental Medicine, Göttingen, Germany
| | - Torben Ruhwedel
- Electron Microscopy Core Unit, Department of Neurogenetics, Max Planck Institute of Experimental Medicine, Göttingen, Germany
| | | | - John Matsoukas
- Department of Chemistry, University of Patras, Patras, Greece
| | - Maria Anagnostouli
- Immunogenetics Laboratory, First Department of Neurology, Aeginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Hans Lassmann
- Department of Neuroimmunology, Center for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Lesley Probert
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, Athens, Greece
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43
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Nakamura M, Souri EA, Osborn G, Laddach R, Chauhan J, Stavraka C, Lombardi S, Black A, Khiabany A, Khair DO, Figini M, Winship A, Ghosh S, Montes A, Spicer JF, Bax HJ, Josephs DH, Lacy KE, Tsoka S, Karagiannis SN. IgE Activates Monocytes from Cancer Patients to Acquire a Pro-Inflammatory Phenotype. Cancers (Basel) 2020; 12:E3376. [PMID: 33203088 PMCID: PMC7698027 DOI: 10.3390/cancers12113376] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/27/2020] [Accepted: 11/12/2020] [Indexed: 02/08/2023] Open
Abstract
IgE contributes to host-protective functions in parasitic and bacterial infections, often by monocyte and macrophage recruitment. We previously reported that monocytes contribute to tumour antigen-specific IgE-mediated tumour growth restriction in rodent models. Here, we investigate the impact of IgE stimulation on monocyte response, cellular signalling, secretory and tumour killing functions. IgE cross-linking on human monocytes with polyclonal antibodies to mimic formation of immune complexes induced upregulation of co-stimulatory (CD40, CD80, CD86), and reduced expression of regulatory (CD163, CD206, MerTK) monocyte markers. Cross-linking and tumour antigen-specific IgE antibody-dependent cellular cytotoxicity (ADCC) of cancer cells by cancer patient-derived monocytes triggered release of pro-inflammatory mediators (TNFα, MCP-1, IL-10, CXCL-10, IL-1β, IL-6, IL-23). High intratumoural gene expression of these mediators was associated with favourable five-year overall survival in ovarian cancer. IgE cross-linking of trimeric FcεRI on monocytes stimulated the phosphorylation of intracellular protein kinases widely reported to be downstream of mast cell and basophil tetrameric FcεRI signalling. These included recently-identified FcεRI pathway kinases Fgr, STAT5, Yes and Lck, which we now associate with monocytes. Overall, anti-tumour IgE can potentiate pro-inflammatory signals, and prime tumour cell killing by human monocytes. These findings will inform the development of IgE monoclonal antibody therapies for cancer.
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Affiliation(s)
- Mano Nakamura
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
| | - Elmira Amiri Souri
- Department of Informatics, Faculty of Natural & Mathematical Sciences, King’s College London, London WC2B 4BG, UK; (E.A.S.); (S.T.)
| | - Gabriel Osborn
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
| | - Roman Laddach
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
- Department of Informatics, Faculty of Natural & Mathematical Sciences, King’s College London, London WC2B 4BG, UK; (E.A.S.); (S.T.)
| | - Jitesh Chauhan
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
- School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK;
| | - Chara Stavraka
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
- School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK;
| | - Sara Lombardi
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
- School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK;
| | - Anna Black
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
- School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK;
| | - Atousa Khiabany
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
- School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK;
| | - Duaa O. Khair
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
| | - Mariangela Figini
- Biomarker Unit, Department of Applied Research and Technology Development, Fondazione, IRCCS Istituto Nazionale dei Tumouri Milano, 20133 Milan, Italy;
| | - Anna Winship
- Department of Medical Oncology and Clinical Oncology, Guy’s and St Thomas’ NHS Foundation Trust, London SE1 9RT, UK; (A.W.); (S.G.); (A.M.)
| | - Sharmistha Ghosh
- Department of Medical Oncology and Clinical Oncology, Guy’s and St Thomas’ NHS Foundation Trust, London SE1 9RT, UK; (A.W.); (S.G.); (A.M.)
| | - Ana Montes
- Department of Medical Oncology and Clinical Oncology, Guy’s and St Thomas’ NHS Foundation Trust, London SE1 9RT, UK; (A.W.); (S.G.); (A.M.)
| | - James F. Spicer
- School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK;
| | - Heather J. Bax
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
- School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK;
| | - Debra H. Josephs
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
- School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Hospital, London SE1 9RT, UK;
| | - Katie E. Lacy
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
| | - Sophia Tsoka
- Department of Informatics, Faculty of Natural & Mathematical Sciences, King’s College London, London WC2B 4BG, UK; (E.A.S.); (S.T.)
| | - Sophia N. Karagiannis
- St. John’s Institute of Dermatology, School of Basic & Medical Biosciences, King’s College London, Tower Wing, 9th Floor, Guy’s Hospital, London SE1 9RT, UK; (M.N.); (G.O.); (R.L.); (J.C.); (C.S.); (S.L.); (A.B.); (A.K.); (D.O.K.); (H.J.B.); (D.H.J.); (K.E.L.)
- Breast Cancer Now Research Unit, School of Cancer & Pharmaceutical Sciences, King’s College London, Guy’s Cancer Centre, London SE1 9RT, UK
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44
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Trzebanski S, Jung S. Plasticity of monocyte development and monocyte fates. Immunol Lett 2020; 227:66-78. [PMID: 32814154 DOI: 10.1016/j.imlet.2020.07.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 01/01/2023]
Abstract
Monocytes are circulating myeloid immune precursor cells that are generated in the bone marrow. Mature monocytes are released into the circulation and, in case of need, recruited to peripheral sites of inflammation to differentiate into monocyte-derived effector cells. In absence of overt inflammation, monocytes also extravasate into selected tissues, where they complement tissue-resident macrophage compartments. Adjustment of these homeostatic monocyte infiltrates to local environment is critical to maintain health, as best established for the intestine. Defined gene expression changes that differ between gut segments presumably help strike the fine balance between the crucial function of these monocyte-derived macrophages as tissue rheostats and their detrimental hyperactivation. Environmental factors that dictate local monocyte differentiation remain incompletely understood. Definition of the latter could aid our general understanding of in vivo monocyte functions and their relation to inflammatory disorders. In this review, we summarize recent advances in our understanding of monocyte subsets, their differentiation into tissue macrophages, and selected contributions of monocyte-derived cells to steady-state physiology. Moreover, we will discuss emerging evidence for an intriguing bifurcation of monocyte development in the bone marrow and potential functional implications. Emphasis will be given to points of controversies, but we will largely focus on the healthy organism. For a discussion of monocyte and macrophage contributions to inflammatory conditions, we refer the reader to other dedicated reviews.
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Affiliation(s)
| | - Steffen Jung
- Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel.
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45
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Zhu W, Lönnblom E, Förster M, Johannesson M, Tao P, Meng L, Lu S, Holmdahl R. Natural polymorphism of Ym1 regulates pneumonitis through alternative activation of macrophages. SCIENCE ADVANCES 2020; 6:6/43/eaba9337. [PMID: 33087360 PMCID: PMC7577715 DOI: 10.1126/sciadv.aba9337] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 09/02/2020] [Indexed: 05/12/2023]
Abstract
We have positionally cloned the Ym1 gene, with a duplication and a promoter polymorphism, as a major regulator of inflammation. Mice with the RIIIS/J haplotype, with the absence of Ym1 expression, showed reduced susceptibility to mannan-enhanced collagen antibody-induced arthritis and to chronic arthritis induced by intranasal exposure of mannan. Depletion of lung macrophages alleviated arthritis, whereas intranasal supplement of Ym1 protein to Ym1-deficient mice reversed the disease, suggesting a key role of Ym1 for inflammatory activity by lung macrophages. Ym1-deficient mice with pneumonitis had less eosinophil infiltration, reduced production of type II cytokines and IgG1, and skewing of macrophages toward alternative activation due to enhanced STAT6 activation. Proteomics analysis connected Ym1 polymorphism with changed lipid metabolism. Induced PPAR-γ and lipid metabolism in Ym1-deficient macrophages contributed to cellular polarization. In conclusion, the natural polymorphism of Ym1 regulates alternative activation of macrophages associated with pulmonary inflammation.
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Affiliation(s)
- Wenhua Zhu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, 710061 Xi'an, China
- The National Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, the Second Affiliated Hospital of Xi'an Jiaotong University, 710004 Xi'an, China
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm 171 77, Sweden
| | - Erik Lönnblom
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm 171 77, Sweden
| | - Michael Förster
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm 171 77, Sweden
| | - Martina Johannesson
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm 171 77, Sweden
| | - Pei Tao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, 710061 Xi'an, China
| | - Liesu Meng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, China.
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, 710061 Xi'an, China
- The National Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, the Second Affiliated Hospital of Xi'an Jiaotong University, 710004 Xi'an, China
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm 171 77, Sweden
| | - Shemin Lu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, 710061 Xi'an, China
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm 171 77, Sweden
| | - Rikard Holmdahl
- The National Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, the Second Affiliated Hospital of Xi'an Jiaotong University, 710004 Xi'an, China.
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm 171 77, Sweden
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46
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Weinberger T, Esfandyari D, Messerer D, Percin G, Schleifer C, Thaler R, Liu L, Stremmel C, Schneider V, Vagnozzi RJ, Schwanenkamp J, Fischer M, Busch K, Klapproth K, Ishikawa-Ankerhold H, Klösges L, Titova A, Molkentin JD, Kobayashi Y, Engelhardt S, Massberg S, Waskow C, Perdiguero EG, Schulz C. Ontogeny of arterial macrophages defines their functions in homeostasis and inflammation. Nat Commun 2020; 11:4549. [PMID: 32917889 PMCID: PMC7486394 DOI: 10.1038/s41467-020-18287-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 08/12/2020] [Indexed: 12/22/2022] Open
Abstract
Arterial macrophages have different developmental origins, but the association of macrophage ontogeny with their phenotypes and functions in adulthood is still unclear. Here, we combine macrophage fate-mapping analysis with single-cell RNA sequencing to establish their cellular identity during homeostasis, and in response to angiotensin-II (AngII)-induced arterial inflammation. Yolk sac erythro-myeloid progenitors (EMP) contribute substantially to adventitial macrophages and give rise to a defined cluster of resident immune cells with homeostatic functions that is stable in adult mice, but declines in numbers during ageing and is not replenished by bone marrow (BM)-derived macrophages. In response to AngII inflammation, increase in adventitial macrophages is driven by recruitment of BM monocytes, while EMP-derived macrophages proliferate locally and provide a distinct transcriptional response that is linked to tissue regeneration. Our findings thus contribute to the understanding of macrophage heterogeneity, and associate macrophage ontogeny with distinct functions in health and disease. Arterial macrophages develop from either yolk sac or bone marrow progenitors. Here, the author show that ageing-induced reduction of arterial macrophages is not replenished by bone marrow-derived cells, but under inflammatory conditions circulating monocytes are recruited to maintain homeostasis, while arterial macrophages of yolk sac origin carry out tissue repair.
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Affiliation(s)
- Tobias Weinberger
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Dena Esfandyari
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany.,Institute of Pharmacology and Toxicology, Technische Universität München, Biedersteiner Strasse 29, 80802, Munich, Germany
| | - Denise Messerer
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Gulce Percin
- Regeneration in Hematopoiesis, Leibniz-Institute on Aging - Fritz-Lipmann-Institute (FLI), Beutenbergstrasse 11, 07745, Jena, Germany
| | - Christian Schleifer
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Raffael Thaler
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Lulu Liu
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Christopher Stremmel
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Vanessa Schneider
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Ronald J Vagnozzi
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Jennifer Schwanenkamp
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Maximilian Fischer
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Katrin Busch
- Division of Cellular Immunology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Kay Klapproth
- Division of Cellular Immunology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Hellen Ishikawa-Ankerhold
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Lukas Klösges
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Anna Titova
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Jeffery D Molkentin
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.,Howard Hughes Medical Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Yasuhiro Kobayashi
- Institute for Oral Science, Matsumoto Dental University, 1780 Hiro-Oka Gobara Shiojiri, Nagano, 390-0781, Japan
| | - Stefan Engelhardt
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany.,Institute of Pharmacology and Toxicology, Technische Universität München, Biedersteiner Strasse 29, 80802, Munich, Germany
| | - Steffen Massberg
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany
| | - Claudia Waskow
- Regeneration in Hematopoiesis, Leibniz-Institute on Aging - Fritz-Lipmann-Institute (FLI), Beutenbergstrasse 11, 07745, Jena, Germany.,Faculty of Biological Sciences, Friedrich-Schiller-University Jena, 07737 Jena, 07745, Jena, Germany
| | - Elisa Gomez Perdiguero
- Institut Pasteur, Macrophages and Endothelial cells, Département de Biologie du Développement et Cellules Souches, UMR3738 CNRS, Paris, 75015, France
| | - Christian Schulz
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377, Munich, Germany. .,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, 80802, Munich, Germany. .,Walter-Brendel-Center for Experimental Medicine, Ludwig Maximilian University, Marchioninistrasse 27, 81377, Munich, Germany.
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47
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Hou X, Chen G, Bracamonte-Baran W, Choi HS, Diny NL, Sung J, Hughes D, Won T, Wood MK, Talor MV, Hackam DJ, Klingel K, Davogustto G, Taegtmeyer H, Coppens I, Barin JG, Čiháková D. The Cardiac Microenvironment Instructs Divergent Monocyte Fates and Functions in Myocarditis. Cell Rep 2020; 28:172-189.e7. [PMID: 31269438 PMCID: PMC6813836 DOI: 10.1016/j.celrep.2019.06.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 05/07/2019] [Accepted: 06/03/2019] [Indexed: 12/24/2022] Open
Abstract
Two types of monocytes, Ly6Chi and Ly6Clo, infiltrate the heart in murine experimental autoimmune myocarditis (EAM). We discovered a role for cardiac fibroblasts in facilitating monocyte-to-macrophage differentiation of both Ly6Chi and Ly6Clo cells, allowing these macrophages to perform divergent functions in myocarditis progression. During the acute phase of EAM, IL-17A is highly abundant. It signals through cardiac fibroblasts to attenuate efferocytosis of Ly6Chi monocyte-derived macrophages (MDMs) and simultaneously prevents Ly6Clo monocyte-to-macrophage differentiation. We demonstrated an inverse clinical correlation between heart IL-17A levels and efferocytic receptor expressions in humans with heart failure (HF). In the absence of IL-17A signaling, Ly6Chi MDMs act as robust phagocytes and are less proinflammatory, whereas Ly6Clo monocytes resume their differentiation into MHCII+ macrophages. We propose that MHCII+Ly6Clo MDMs are associated with the reduction of cardiac fibrosis and prevention of the myocarditis sequalae. Hou et al. show that cardiac fibroblasts facilitate infiltrating Ly6Chi and Ly6Clo monocytes to become macrophages. IL-17A trans-signaling through cardiac fibroblasts increases MerTK shedding and promotes a pro-inflammatory and pro-tissue remodeling gene expression profile in Ly6Chi monocyte-derived macrophages. Paradoxically, IL-17A signaling through cardiac fibroblasts can substantially inhibit Ly6Clo monocyte-to-macrophage differentiation.
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Affiliation(s)
- Xuezhou Hou
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Guobao Chen
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | | | - Hee Sun Choi
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Nicola L Diny
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Jungeun Sung
- Institute of Genetic Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - David Hughes
- Department of Chemical and Biomolecular Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Taejoon Won
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Megan Kay Wood
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Monica V Talor
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - David Joel Hackam
- Division of General Pediatric Surgery, Johns Hopkins University and Bloomberg Children's Center, Johns Hopkins Hospital, Baltimore, MD 21218, USA
| | - Karin Klingel
- Cardiopathology, Institute for Pathology and Neuropathology, University of Tübingen, 72076 Tübingen, Germany
| | - Giovanni Davogustto
- Department of Internal Medicine, Division of Cardiovascular Medicine, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Heinrich Taegtmeyer
- Department of Internal Medicine, Division of Cardiovascular Medicine, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Isabelle Coppens
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Jobert G Barin
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Daniela Čiháková
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA; Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA.
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48
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Qie C, Jiang J, Liu W, Hu X, Chen W, Xie X, Liu J. Single-cell RNA-Seq reveals the transcriptional landscape and heterogeneity of skin macrophages in Vsir -/- murine psoriasis. Theranostics 2020; 10:10483-10497. [PMID: 32929361 PMCID: PMC7482809 DOI: 10.7150/thno.45614] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 08/09/2020] [Indexed: 12/13/2022] Open
Abstract
Rationale: V-domain immunoglobulin suppressor of T cell activation (VISTA) is a novel inhibitory immune checkpoint molecule. Vsir-/- mice have exacerbated psoriasis-like skin inflammation. The immune cell subsets involved in inflammation in Vsir-/- psoriatic mice are largely unknown. We have used scRNA-seq as an unbiased profiling strategy to study the heterogeneity of immune cells at a single cell level in the skin of Vsir-/- psoriatic mice. Methods: In the present study, the right ear and shaved back skin of wild type and Vsir-/- mice were treated with IMQ for 5 consecutive days to induce psoriasis-like dermatitis. Then, the single-cell RNA sequencing analysis of mouse back skin lesions was performed using 10 × Genomics technique. Results: We identified 12 major cell subtypes among 23,258 cells. The major populations of the skin cells included macrophages, dendritic cells and fibroblasts. Macrophages constituted the main immune cell population in the WT (61.29%) and Vsir-/- groups (77.7%). It should be noted that DCs and fibroblasts were expanded in the Vsir-/- psoriatic mice. Furthermore, the gene expression signatures were assessed. We observed that Hspb1 and Cebpb were significantly upregulated in the Vsir-/- psoriatic mice. Differential gene expression and gene ontology enrichment analyses revealed specific gene expression patterns distinguishing these subsets and uncovered putative functions of each cell type. Date analysis resulted in the discovery of a number of novel psoriasis-associated genes in Vsir-/- mice. Conclusion: We present a comprehensive single-cell landscape of the skin immune cells in Vsir-/- psoriatic mice. These unprecedented data uncovered the transcriptional landscape and phenotypic heterogeneity of skin macrophages in psoriasis and identified their gene expression signature suggesting specialized functions in Vsir-/- mice. Our findings will open novel opportunities to investigate the role of VISTA in driving psoriasis.
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49
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Uchida Y, Nishitai G, Kikuchi K, Shibuya T, Asano K, Tanaka M. CD204-positive monocytes and macrophages ameliorate septic shock by suppressing proinflammatory cytokine production in mice. Biochem Biophys Rep 2020; 23:100791. [PMID: 32793817 PMCID: PMC7415826 DOI: 10.1016/j.bbrep.2020.100791] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/10/2020] [Accepted: 07/22/2020] [Indexed: 01/31/2023] Open
Abstract
Sepsis is defined as a life-threatening multiorgan dysfunction caused by dysregulated inflammatory response to infection. It remains the primary cause of death from infection if not diagnosed and treated promptly. Therefore, a better understanding of the mechanism for resolving inflammation is needed. Monocytes and macrophages play a pivotal role not only in the induction but also in the suppression of inflammation. However, a tissue-resident macrophage subset that regulates a hyperinflammatory state during sepsis has not been explored. Here we show that CD204+ monocytes and/or macrophages rescued mice from endotoxin-induced septic shock. Serum and tissue proinflammatory cytokine levels were significantly upregulated in the absence of these cells. This study provided evidence that CD204+ monocytes and/or macrophages ameliorate septic shock by suppressing proinflammatory cytokine production.
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50
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Ho GT, Cartwright JA, Thompson EJ, Bain CC, Rossi AG. Resolution of Inflammation and Gut Repair in IBD: Translational Steps Towards Complete Mucosal Healing. Inflamm Bowel Dis 2020; 26:1131-1143. [PMID: 32232386 PMCID: PMC7365805 DOI: 10.1093/ibd/izaa045] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Indexed: 02/07/2023]
Abstract
Despite significant recent therapeutic advances, complete mucosal healing remains a difficult treatment target for many patients with inflammatory bowel diseases (IBD) to achieve. Our review focuses on the translational concept of promoting resolution of inflammation and repair as a necessary adjunctive step to reach this goal. We explore the roles of inflammatory cell apoptosis and efferocytosis to promote resolution, the new knowledge of gut monocyte-macrophage populations and their secreted prorepair mediators, and the processes of gut epithelial repair and regeneration to bridge this gap. We discuss the need and rationale for this vision and the tangible steps toward integrating proresolution therapies in IBD.
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Affiliation(s)
- Gwo-tzer Ho
- Edinburgh IBD Science Unit, Centre for Inflammation Research, Queen’s Medical Research Unit, University of Edinburgh, Scotland, United Kingdom,Address correspondence to: Gwo-tzer Ho, FRCP, PhD, Edinburgh IBD Science Unit, Centre for Inflammation Research, Queen’s Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, Scotland, United Kingdom ()
| | - Jennifer A Cartwright
- Edinburgh IBD Science Unit, Centre for Inflammation Research, Queen’s Medical Research Unit, University of Edinburgh, Scotland, United Kingdom
| | - Emily J Thompson
- Edinburgh IBD Science Unit, Centre for Inflammation Research, Queen’s Medical Research Unit, University of Edinburgh, Scotland, United Kingdom
| | - Calum C Bain
- Edinburgh IBD Science Unit, Centre for Inflammation Research, Queen’s Medical Research Unit, University of Edinburgh, Scotland, United Kingdom
| | - Adriano G Rossi
- Edinburgh IBD Science Unit, Centre for Inflammation Research, Queen’s Medical Research Unit, University of Edinburgh, Scotland, United Kingdom
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