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Gray CC, Armstead BE, Chung CS, Chen Y, Ayala A. VISTA nonredundantly regulates proliferation and CD69low γδ T cell accumulation in the intestine in murine sepsis. J Leukoc Biol 2024; 115:1005-1019. [PMID: 38035776 PMCID: PMC11135620 DOI: 10.1093/jleuko/qiad149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 10/21/2023] [Accepted: 11/14/2023] [Indexed: 12/02/2023] Open
Abstract
Sepsis is a dysregulated systemic immune response to infection i.e. responsible for ∼35% of in-hospital deaths at a significant fiscal healthcare cost. Our laboratory, among others, has demonstrated the efficacy of targeting negative checkpoint regulators (NCRs) to improve survival in a murine model of sepsis, cecal ligation and puncture (CLP). B7-CD28 superfamily member, V-domain immunoglobulin suppressor of T cell activation (VISTA), is an ideal candidate for strategic targeting in sepsis. VISTA is a 35 to 45 kDa type 1 transmembrane protein with unique biology that sets it apart from all other NCRs. We recently reported that VISTA-/- mice had a significant survival deficit post-CLP, which was rescued upon adoptive transfer of a VISTA-expressing pMSCV-mouse Foxp3-EF1α-GFP-T2A-puro stable Jurkat cell line (Jurkatfoxp3 T cells). Based on our prior study, we investigated the effector cell target of Jurkatfoxp3 T cells in VISTA-/- mice. γδ T cells are a powerful lymphoid subpopulation that require regulatory fine-tuning by regulatory T cells to prevent overt inflammation/pathology. In this study, we hypothesized that Jurkatfoxp3 T cells nonredundantly modulate the γδ T cell population post-CLP. We found that VISTA-/- mice have an increased accumulation of intestinal CD69low γδ T cells, which are not protective in murine sepsis. Adoptive transfer of Jurkatfoxp3 T cells decreased the intestinal γδ T cell population, suppressed proliferation, skewed remaining γδ T cells toward a CD69high phenotype, and increased soluble CD40L in VISTA-/- mice post-CLP. These results support a potential regulatory mechanism by which VISTA skews intestinal γδ T cell lineage representation in murine sepsis.
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MESH Headings
- Animals
- Sepsis/immunology
- Mice
- Antigens, Differentiation, T-Lymphocyte/genetics
- Antigens, Differentiation, T-Lymphocyte/metabolism
- Antigens, CD/metabolism
- Antigens, CD/genetics
- Cell Proliferation
- Humans
- Lectins, C-Type/metabolism
- Lectins, C-Type/genetics
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Mice, Knockout
- Mice, Inbred C57BL
- Intestines/immunology
- Intestines/pathology
- Jurkat Cells
- Intraepithelial Lymphocytes/immunology
- Intraepithelial Lymphocytes/metabolism
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
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Affiliation(s)
- Chyna C Gray
- Division of Surgical Research, Department of Surgery, Brown University, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, United States
| | - Brandon E Armstead
- Division of Surgical Research, Department of Surgery, Brown University, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, United States
- Pathobiology Graduate Program, Brown University, Box G-B495, Providence, RI 02912, United States
| | - Chun-Shiang Chung
- Division of Surgical Research, Department of Surgery, Brown University, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, United States
| | - Yaping Chen
- Division of Surgical Research, Department of Surgery, Brown University, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, United States
| | - Alfred Ayala
- Division of Surgical Research, Department of Surgery, Brown University, Rhode Island Hospital, 593 Eddy Street, Providence, RI 02903, United States
- Pathobiology Graduate Program, Brown University, Box G-B495, Providence, RI 02912, United States
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2
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Fazzone B, Anderson EM, Rozowsky JM, Yu X, O’Malley KA, Robinson S, Scali ST, Cai G, Berceli SA. Short-Term Dietary Restriction Potentiates an Anti-Inflammatory Circulating Mucosal-Associated Invariant T-Cell Response. Nutrients 2024; 16:1245. [PMID: 38674935 PMCID: PMC11053749 DOI: 10.3390/nu16081245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Short-term protein-calorie dietary restriction (StDR) is a promising preoperative strategy for modulating postoperative inflammation. We have previously shown marked gut microbial activity during StDR, but relationships between StDR, the gut microbiome, and systemic immunity remain poorly understood. Mucosal-associated invariant T-cells (MAITs) are enriched on mucosal surfaces and in circulation, bridge innate and adaptive immunity, are sensitive to gut microbial changes, and may mediate systemic responses to StDR. Herein, we characterized the MAIT transcriptomic response to StDR using single-cell RNA sequencing of human PBMCs and evaluated gut microbial species-level changes through sequencing of stool samples. Healthy volunteers underwent 4 days of DR during which blood and stool samples were collected before, during, and after DR. MAITs composed 2.4% of PBMCs. More MAIT genes were differentially downregulated during DR, particularly genes associated with MAIT activation (CD69), regulation of pro-inflammatory signaling (IL1, IL6, IL10, TNFα), and T-cell co-stimulation (CD40/CD40L, CD28), whereas genes associated with anti-inflammatory IL10 signaling were upregulated. Stool analysis showed a decreased abundance of multiple MAIT-stimulating Bacteroides species during DR. The analyses suggest that StDR potentiates an anti-inflammatory MAIT immunophenotype through modulation of TCR-dependent signaling, potentially secondary to gut microbial species-level changes.
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Affiliation(s)
- Brian Fazzone
- Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, University of Florida, Gainesville, FL 32611, USA; (B.F.); (E.M.A.); (K.A.O.); (S.R.); (S.T.S.)
| | - Erik M. Anderson
- Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, University of Florida, Gainesville, FL 32611, USA; (B.F.); (E.M.A.); (K.A.O.); (S.R.); (S.T.S.)
| | - Jared M. Rozowsky
- Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, University of Florida, Gainesville, FL 32611, USA; (B.F.); (E.M.A.); (K.A.O.); (S.R.); (S.T.S.)
| | - Xuanxuan Yu
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA;
| | - Kerri A. O’Malley
- Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, University of Florida, Gainesville, FL 32611, USA; (B.F.); (E.M.A.); (K.A.O.); (S.R.); (S.T.S.)
- Malcom Randall Veteran Affairs Medical Center, Gainesville, FL 32608, USA
| | - Scott Robinson
- Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, University of Florida, Gainesville, FL 32611, USA; (B.F.); (E.M.A.); (K.A.O.); (S.R.); (S.T.S.)
- Malcom Randall Veteran Affairs Medical Center, Gainesville, FL 32608, USA
| | - Salvatore T. Scali
- Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, University of Florida, Gainesville, FL 32611, USA; (B.F.); (E.M.A.); (K.A.O.); (S.R.); (S.T.S.)
- Malcom Randall Veteran Affairs Medical Center, Gainesville, FL 32608, USA
| | - Guoshuai Cai
- Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA;
| | - Scott A. Berceli
- Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, University of Florida, Gainesville, FL 32611, USA; (B.F.); (E.M.A.); (K.A.O.); (S.R.); (S.T.S.)
- Malcom Randall Veteran Affairs Medical Center, Gainesville, FL 32608, USA
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3
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Hua S, Latha K, Marlin R, Benmeziane K, Bossevot L, Langlois S, Relouzat F, Dereuddre-Bosquet N, Le Grand R, Cavarelli M. Intestinal immunological events of acute and resolved SARS-CoV-2 infection in non-human primates. Mucosal Immunol 2024; 17:25-40. [PMID: 37827377 DOI: 10.1016/j.mucimm.2023.10.001] [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: 07/19/2023] [Revised: 09/27/2023] [Accepted: 10/04/2023] [Indexed: 10/14/2023]
Abstract
SARS-CoV-2 infection has been associated with intestinal mucosal barrier damage, leading to microbial and endotoxin translocation, heightened inflammatory responses, and aggravated disease outcomes. This study aimed to investigate the immunological mechanisms associated with impaired intestinal barrier function. We conducted a comprehensive analysis of gut damage and inflammation markers and phenotypic characterization of myeloid and lymphoid populations in the ileum and colon of SARS-CoV-2-exposed macaques during both the acute and resolved infection phases. Our findings revealed a significant accumulation of terminally differentiated and activated CD4+ and CD8+ T cells, along with memory B cells, within the gastrointestinal tract up to 43 days after exposure to SARS-CoV-2. This robust infection-induced immune response was accompanied by a notable depletion of plasmacytoid dendritic cells, myeloid dendritic cells, and macrophages, particularly affecting the colon during the resolved infection phase. Additionally, we identified a population of CX3CR1Low inflammatory macrophages associated with intestinal damage during active viral replication. Elevated levels of immune activation and gut damage markers, and perturbation of macrophage homeostasis, persisted even after the resolution of the infection, suggesting potential long-term clinical sequelae. These findings enhance our understanding of gastrointestinal immune pathology following SARS-CoV-2 infection and provide valuable information for developing and testing medical countermeasures.
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Affiliation(s)
- Stéphane Hua
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Krishna Latha
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Romain Marlin
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Keltouma Benmeziane
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Laetitia Bossevot
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Sébastien Langlois
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Francis Relouzat
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Nathalie Dereuddre-Bosquet
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Roger Le Grand
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France
| | - Mariangela Cavarelli
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, France.
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4
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Wang J, Donohoe E, Canning A, Moosavizadeh S, Buckley F, Brennan MÁ, Ryan AE, Ritter T. Immunomodulatory function of licensed human bone marrow mesenchymal stromal cell-derived apoptotic bodies. Int Immunopharmacol 2023; 125:111096. [PMID: 37871378 DOI: 10.1016/j.intimp.2023.111096] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/02/2023] [Accepted: 10/18/2023] [Indexed: 10/25/2023]
Abstract
BACKGROUND Mesenchymal stromal cells (MSCs) show great potential for immunomodulatory and anti-inflammatory treatments. Clinical trials have been performed for the treatment of Type 1 diabetes, graft-versus-host disease and organ transplantation, which offer a promise of MSCs as an immunomodulatory therapy. Nevertheless, their unstable efficacy and immunogenicity concerns present challenges to clinical translation. It has emerged that the MSC-derived secretome, which includes secreted proteins, exosomes, apoptotic bodies (ABs) and other macromolecules, may have similar therapeutic effects to parent MSCs. Among all of the components of the MSC-derived secretome, most interest thus far has been garnered by exosomes for their therapeutic potential. However, since MSCs were reported to undergo apoptosis after in vivo transplantation and release ABs, we speculated as to whether ABs have immunomodulatory effects. In this study, cytokine licensing was used to enhance the immunomodulatory potency of MSCs and ABs derived from licensed MSCs in vitro were isolated to explore their immunomodulatory effects as an effective non-viable cell therapy. RESULTS IFN-γ and IFN-γ/TGF-β1 licensing enhanced the immunomodulatory effect of MSCs on T cell proliferation. Further, TGF-β1 and IFN-γ licensing strengthened the immunomodulatory effect of MSC on reducing the TNF-α and IL-1β expression by M1 macrophage-like THP-1 cells. Additionally, we discovered the immunomodulatory effect mediated by MSC-derived apoptotic bodies. Licensing impacted the uptake of ABs by recipient immune cells and importantly altered their phenotypes. CONCLUSION ABs derived from IFN-γ/TGF-β1-licensed apoptotic MSCs significantly inhibited T cell proliferation, induced more regulatory T cells, and maintained immunomodulatory T cells but reduced pro-inflammatory T cells.
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Affiliation(s)
- Jiemin Wang
- Regenerative Medicine Institute, School of Medicine, University of Galway, Galway, Ireland
| | - Ellen Donohoe
- Regenerative Medicine Institute, School of Medicine, University of Galway, Galway, Ireland
| | - Aoife Canning
- Regenerative Medicine Institute, School of Medicine, University of Galway, Galway, Ireland
| | - Seyedmohammad Moosavizadeh
- Regenerative Medicine Institute, School of Medicine, University of Galway, Galway, Ireland; CURAM Centre for Research in Medical Devices, University of Galway, Galway, Ireland
| | - Fiona Buckley
- Regenerative Medicine Institute, School of Medicine, University of Galway, Galway, Ireland; Biomedical Engineering, School of Engineering, University of Galway, Galway, Ireland
| | - Meadhbh Á Brennan
- Regenerative Medicine Institute, School of Medicine, University of Galway, Galway, Ireland; CURAM Centre for Research in Medical Devices, University of Galway, Galway, Ireland
| | - Aideen E Ryan
- Regenerative Medicine Institute, School of Medicine, University of Galway, Galway, Ireland; CURAM Centre for Research in Medical Devices, University of Galway, Galway, Ireland; Discipline of Pharmacology and Therapeutics, School of Medicine, University of Galway, Galway, Ireland
| | - Thomas Ritter
- Regenerative Medicine Institute, School of Medicine, University of Galway, Galway, Ireland; CURAM Centre for Research in Medical Devices, University of Galway, Galway, Ireland.
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5
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Hada A, Li L, Kandel A, Jin Y, Xiao Z. Characterization of Bovine Intraepithelial T Lymphocytes in the Gut. Pathogens 2023; 12:1173. [PMID: 37764981 PMCID: PMC10535955 DOI: 10.3390/pathogens12091173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Intraepithelial T lymphocytes (T-IELs), which constitute over 50% of the total T lymphocytes in the animal, patrol the mucosal epithelial lining to defend against pathogen invasion while maintaining gut homeostasis. In addition to expressing T cell markers such as CD4 and CD8, T-IELs display T cell receptors (TCR), including either TCRαβ or TCRγδ. Both humans and mice share similar T-IEL subsets: TCRγδ+, TCRαβ+CD8αα+, TCRαβ+CD4+, and TCRαβ+CD8αβ+. Among these subsets, human T-IELs are predominantly TCRαβ+ (over 80%), whereas those in mice are mostly TCRγδ+ (~60%). Of note, the majority of the TCRγδ+ subset expresses CD8αα in both species. Although T-IELs have been extensively studied in humans and mice, their profiles in cattle have not been well examined. Our study is the first to characterize bovine T-IELs using flow cytometry, where we identified several distinct features. The percentage of TCRγδ+ was comparable to that of TCRαβ+ T-IELs (both ~50% of CD3+), and the majority of bovine TCRγδ+ T-IELs did not express CD8 (CD8-) (above 60%). Furthermore, about 20% of TCRαβ+ T-IELs were CD4+CD8αβ+, and the remaining TCRαβ+ T-IELs were evenly distributed between CD4+ and CD8αβ+ (~40% of TCRαβ+ T-IELs each) with no TCRαβ+CD8αα+ identified. Despite these unique properties, bovine T-IELs, similar to those in humans and mice, expressed a high level of CD69, an activation and tissue-retention marker, and a low level of CD62L, a lymphoid adhesion marker. Moreover, bovine T-IELs produced low levels of inflammatory cytokines such as IFNγ and IL17A, and secreted small amounts of the immune regulatory cytokine TGFβ1. Hence, bovine T-IELs' composition largely differs from that of human and mouse, with the dominance of the CD8- population among TCRγδ+ T-IELs, the substantial presence of TCRαβ+CD4+CD8αβ+ cells, and the absence of TCRαβ+CD8αα+ T-IELs. These results provide the groundwork for conducting future studies to examine how bovine T-IELs respond to intestinal pathogens and maintain the integrity of the gut epithelial barrier in animals.
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Affiliation(s)
| | | | | | | | - Zhengguo Xiao
- Department of Animal and Avian Sciences, University of Maryland, College Park, MD 20742, USA; (A.H.); (L.L.); (A.K.); (Y.J.)
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6
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Zhou M, Zhang H, Bai Z, Mann-Krzisnik D, Wang F, Li Y. Single-cell multi-omics topic embedding reveals cell-type-specific and COVID-19 severity-related immune signatures. CELL REPORTS METHODS 2023; 3:100563. [PMID: 37671028 PMCID: PMC10475851 DOI: 10.1016/j.crmeth.2023.100563] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 03/31/2023] [Accepted: 07/28/2023] [Indexed: 09/07/2023]
Abstract
The advent of single-cell multi-omics sequencing technology makes it possible for researchers to leverage multiple modalities for individual cells and explore cell heterogeneity. However, the high-dimensional, discrete, and sparse nature of the data make the downstream analysis particularly challenging. Here, we propose an interpretable deep learning method called moETM to perform integrative analysis of high-dimensional single-cell multimodal data. moETM integrates multiple omics data via a product-of-experts in the encoder and employs multiple linear decoders to learn the multi-omics signatures. moETM demonstrates superior performance compared with six state-of-the-art methods on seven publicly available datasets. By applying moETM to the scRNA + scATAC data, we identified sequence motifs corresponding to the transcription factors regulating immune gene signatures. Applying moETM to CITE-seq data from the COVID-19 patients revealed not only known immune cell-type-specific signatures but also composite multi-omics biomarkers of critical conditions due to COVID-19, thus providing insights from both biological and clinical perspectives.
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Affiliation(s)
- Manqi Zhou
- Department of Computational Biology, Cornell University, Ithaca, NY 14853, USA
- Institute of Artificial Intelligence for Digital Health, Weill Cornell Medicine, New York, NY 10021, USA
| | - Hao Zhang
- Division of Health Informatics, Department of Population Health Sciences, Weill Cornell Medicine, New York, NY 10021, USA
| | - Zilong Bai
- Institute of Artificial Intelligence for Digital Health, Weill Cornell Medicine, New York, NY 10021, USA
- Division of Health Informatics, Department of Population Health Sciences, Weill Cornell Medicine, New York, NY 10021, USA
| | | | - Fei Wang
- Institute of Artificial Intelligence for Digital Health, Weill Cornell Medicine, New York, NY 10021, USA
- Division of Health Informatics, Department of Population Health Sciences, Weill Cornell Medicine, New York, NY 10021, USA
| | - Yue Li
- Quantitative Life Science, McGill University, Montréal, QC H3A 0G4, Canada
- School of Computer Science, McGill University, Montréal, QC H3A 0G4, Canada
- Mila – Quebec AI Institute, Montréal, QC H2S 3H1, Canada
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7
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Nisnboym M, Vincze SR, Xiong Z, Sneiderman CT, Raphael RA, Li B, Jaswal AP, Sever RE, Day KE, LaToche JD, Foley LM, Karimi H, Hitchens TK, Agnihotri S, Hu B, Rajasundaram D, Anderson CJ, Blumenthal DT, Pearce TM, Uttam S, Nedrow JR, Panigrahy A, Pollack IF, Lieberman FS, Drappatz J, Raphael I, Edwards WB, Kohanbash G. Immuno-PET Imaging of CD69 Visualizes T-Cell Activation and Predicts Survival Following Immunotherapy in Murine Glioblastoma. CANCER RESEARCH COMMUNICATIONS 2023; 3:1173-1188. [PMID: 37426447 PMCID: PMC10324623 DOI: 10.1158/2767-9764.crc-22-0434] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 03/19/2023] [Accepted: 06/06/2023] [Indexed: 07/11/2023]
Abstract
Glioblastoma (GBM) is the most common and malignant primary brain tumor in adults. Immunotherapy may be promising for the treatment of some patients with GBM; however, there is a need for noninvasive neuroimaging techniques to predict immunotherapeutic responses. The effectiveness of most immunotherapeutic strategies requires T-cell activation. Therefore, we aimed to evaluate an early marker of T-cell activation, CD69, for its use as an imaging biomarker of response to immunotherapy for GBM. Herein, we performed CD69 immunostaining on human and mouse T cells following in vitro activation and post immune checkpoint inhibitors (ICI) in an orthotopic syngeneic mouse glioma model. CD69 expression on tumor-infiltrating leukocytes was assessed using single-cell RNA sequencing (scRNA-seq) data from patients with recurrent GBM receiving ICI. Radiolabeled CD69 Ab PET/CT imaging (CD69 immuno-PET) was performed on GBM-bearing mice longitudinally to quantify CD69 and its association with survival following immunotherapy. We show CD69 expression is upregulated upon T-cell activation and on tumor-infiltrating lymphocytes (TIL) in response to immunotherapy. Similarly, scRNA-seq data demonstrated elevated CD69 on TILs from patients with ICI-treated recurrent GBM as compared with TILs from control cohorts. CD69 immuno-PET studies showed a significantly higher tracer uptake in the tumors of ICI-treated mice compared with controls. Importantly, we observed a positive correlation between survival and CD69 immuno-PET signals in immunotherapy-treated animals and established a trajectory of T-cell activation by virtue of CD69-immuno-PET measurements. Our study supports the potential use of CD69 immuno-PET as an immunotherapy response assessment imaging tool for patients with GBM. Significance Immunotherapy may hold promise for the treatment of some patients with GBM. There is a need to assess therapy responsiveness to allow the continuation of effective treatment in responders and to avoid ineffective treatment with potential adverse effects in the nonresponders. We demonstrate that noninvasive PET/CT imaging of CD69 may allow early detection of immunotherapy responsiveness in patients with GBM.
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Affiliation(s)
- Michal Nisnboym
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
- Department of Neurology, Tel-Aviv Sourasky Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Sarah R. Vincze
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Zujian Xiong
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Chaim T. Sneiderman
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Rebecca A. Raphael
- Department of Computational and Systems Biology, UPMC Hillman Cancer Center, Cancer Biology Program, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Bo Li
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Ambika P. Jaswal
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - ReidAnn E. Sever
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Kathryn E. Day
- In Vivo Imaging Facility, University of Pittsburgh Medical Center, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
| | - Joseph D. LaToche
- In Vivo Imaging Facility, University of Pittsburgh Medical Center, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
| | - Lesley M. Foley
- In Vivo Imaging Facility, University of Pittsburgh Medical Center, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
| | - Hanieh Karimi
- Department of Biochemistry, University of Missouri, Columbia, Missouri
| | - T. Kevin Hitchens
- In Vivo Imaging Facility, University of Pittsburgh Medical Center, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Sameer Agnihotri
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Baoli Hu
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Dhivyaa Rajasundaram
- Division of Health Informatics, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | | | - Deborah T. Blumenthal
- Neuro-oncology Division, Tel-Aviv Sourasky Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Thomas M. Pearce
- Division of Neuropathology, Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Shikhar Uttam
- Department of Computational and Systems Biology, UPMC Hillman Cancer Center, Cancer Biology Program, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jessie R. Nedrow
- In Vivo Imaging Facility, University of Pittsburgh Medical Center, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
| | - Ashok Panigrahy
- Department of Radiology, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Ian F. Pollack
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Frank S. Lieberman
- Neuro-oncology Program, Division of Hematology/Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
| | - Jan Drappatz
- Neuro-oncology Program, Division of Hematology/Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
| | - Itay Raphael
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Wilson B. Edwards
- Department of Biochemistry, University of Missouri, Columbia, Missouri
| | - Gary Kohanbash
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania
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8
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Sanyanusin M, Tudsamran S, Thaiwong R, Tawinwung S, Nishio N, Takahashi Y, Hirankarn N, Suppipat K. Novel xeno-free and serum-free culturing condition to improve piggyBac transposon-based CD19 chimeric antigen receptor T-cell production and characteristics. Cytotherapy 2023; 25:397-406. [PMID: 36517366 DOI: 10.1016/j.jcyt.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/22/2022] [Accepted: 11/27/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND AIMS Chimeric antigen receptor (CAR) T cell is a novel therapy for relapse and refractory hematologic malignancy. Characteristics of CAR T cells are associated with clinical efficacy and toxicity. The type of serum supplements used during cultivation affects the immunophenotype and function of viral-based CAR T cells. This study explores the effect of serum supplements on nonviral piggyBac transposon CAR T-cell production. METHODS PiggyBac CD19 CAR T cells were expanded in cultured conditions containing fetal bovine serum, human AB serum or xeno-free serum replacement. We evaluated the effect of different serum supplements on cell expansion, transduction efficiency, immunophenotypes and antitumor activity. RESULTS Xeno-free serum replacement exhibited comparable CAR surface expression, cell expansion and short-term antitumor activity compared with conventional serum supplements. However, CAR T cells cultivated with xeno-free serum replacement exhibited an increased naïve/stem cell memory population and better T-cell expansion after long-term co-culture as well as during the tumor rechallenge assay. CONCLUSIONS Our study supports the usage of xeno-free serum replacement as an alternative source of serum supplements for piggyBac-based CAR T-cell expansion.
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Affiliation(s)
- Mulita Sanyanusin
- Medical Microbiology, Interdisciplinary and International Program, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Suparat Tudsamran
- Cellular Immunotherapy Research Unit, Chulalongkorn University, Bangkok, Thailand; Chulalongkorn Comprehensive Cancer Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Rattapoom Thaiwong
- Cellular Immunotherapy Research Unit, Chulalongkorn University, Bangkok, Thailand; Chulalongkorn Comprehensive Cancer Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Supannikar Tawinwung
- Cellular Immunotherapy Research Unit, Chulalongkorn University, Bangkok, Thailand; Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Nobuhiro Nishio
- Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nattiya Hirankarn
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Koramit Suppipat
- Cellular Immunotherapy Research Unit, Chulalongkorn University, Bangkok, Thailand; Chulalongkorn Comprehensive Cancer Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand; Department of Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
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9
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Brigleb PH, Kouame E, Fiske KL, Taylor GM, Urbanek K, Medina Sanchez L, Hinterleitner R, Jabri B, Dermody TS. NK cells contribute to reovirus-induced IFN responses and loss of tolerance to dietary antigen. JCI Insight 2022; 7:159823. [PMID: 35993365 PMCID: PMC9462493 DOI: 10.1172/jci.insight.159823] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/14/2022] [Indexed: 11/17/2022] Open
Abstract
Celiac disease is an immune-mediated intestinal disorder that results from loss of oral tolerance (LOT) to dietary gluten. Reovirus elicits inflammatory Th1 cells and suppresses Treg responses to dietary antigen in a strain-dependent manner. Strain type 1 Lang (T1L) breaks oral tolerance, while strain type 3 Dearing reassortant virus (T3D-RV) does not. We discovered that intestinal infection by T1L in mice leads to the recruitment and activation of NK cells in mesenteric lymph nodes (MLNs) in a type I IFN-dependent manner. Once activated following infection, NK cells produce type II IFN and contribute to IFN-stimulated gene expression in the MLNs, which in turn induces inflammatory DC and T cell responses. Immune depletion of NK cells impairs T1L-induced LOT to newly introduced food antigen. These studies indicate that NK cells modulate the response to dietary antigen in the presence of a viral infection.
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Affiliation(s)
- Pamela H. Brigleb
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Elaine Kouame
- Committee on Immunology, University of Chicago, Chicago, Illinois, USA
| | - Kay L. Fiske
- Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Pediatrics and
| | - Gwen M. Taylor
- Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Pediatrics and
| | - Kelly Urbanek
- Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Pediatrics and
| | - Luzmariel Medina Sanchez
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Reinhard Hinterleitner
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Bana Jabri
- Committee on Immunology, University of Chicago, Chicago, Illinois, USA.,Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Terence S. Dermody
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Pediatrics and
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10
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Lyu YR, Yang WK, Lee SW, Kim SH, Kim DS, Son E, Jung IC, Park YC. Inhibitory effects of modified gamgil-tang in a particulate matter-induced lung injury mouse model. JOURNAL OF ETHNOPHARMACOLOGY 2022; 284:114789. [PMID: 34728315 DOI: 10.1016/j.jep.2021.114789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/12/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The modified gamgil-tang (GGX) is a mixture of four herbal medicine including Platycodi Radix, Glycyrrhizae Radix, Lonicerae Flos and Mori Radicis Cortex which has been traditionally used to treat lung and airway diseases to relieve symptoms like sore throat, cough, and sputum in Korea. Its major component chlorogenic acid had been reported to have antioxidant, antibacterial, hepatoprotective, cardioprotective, anti-inflammatory, antiviral, and anti-microbial activity. AIM OF THE STUDY To identify the inhibitory effect of GGX in a particulate matter (PM) induced lung injury mouse model. MATERIALS AND METHODS We evaluated NO production, the release of TNF-α and IFN-γ in PM-induced MH-S cells, and the number of neutrophils, immune cell subtypes, and the secretion of TNF-α, IL-17, CXCL-1, MIP-2 in the PM-stimulated mouse model to assess the inhibitory effect of GGX against PM. In addition, as exposure to PM increases respiratory symptoms, typically cough and sputum, we attempted to evaluate the antitussive and expectorant activities of GGX. RESULTS Our study provided evidence that GGX has inhibitory effects in PM-induced lung injury by inhibiting the increase in neutrophil and inflammatory mediators, deactivating T cells, and ameliorating lung tissue damage. Notably, GGX reduced PM-induced neutrophilic inflammation by attenuating the number of neutrophils and regulating the secretion of neutrophil-related cytokines and chemokines, such as TNF-α, IL-17, MIP2, and CXCL-1. In addition, GGX demonstrated an antitussive activity by significantly reducing citric acid-induced cough frequency and delaying the latent period and expectorant activities by the increased phenol red secretion compared to the control group. CONCLUSIONS GGX is expected to be an effective herbal remedy to prevent PM-induced respiratory disease.
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Affiliation(s)
- Yee Ran Lyu
- Korean Medicine Science Research Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - Won-Kyung Yang
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon, Republic of Korea
| | - Su-Won Lee
- Division of Respiratory Medicine, Dept. of Internal Medicine, College of Korean Medicine, Daejeon University, Daejeon, Republic of Korea
| | - Seung-Hyung Kim
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon, Republic of Korea
| | - Dong-Seon Kim
- Korean Medicine Science Research Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - Eunjung Son
- Korean Medicine Science Research Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - In Chul Jung
- Department of Neuropsychiatry, College of Korean Medicine, Daejeon University, Daejeon, Republic of Korea
| | - Yang-Chun Park
- Division of Respiratory Medicine, Dept. of Internal Medicine, College of Korean Medicine, Daejeon University, Daejeon, Republic of Korea.
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11
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Wu ZX, Wang F, Li L, Yao Y, Long J, Luo QQ, Zhao ZB, Li WL, Cao J, Lian ZX. The Clinical Significance of Mesenteric Lymphocytes in Human Colorectal Cancer. Front Oncol 2021; 11:685577. [PMID: 34604029 PMCID: PMC8481834 DOI: 10.3389/fonc.2021.685577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 08/27/2021] [Indexed: 01/08/2023] Open
Abstract
Objective The mesentery is a potential site of residual tumor in patients with colorectal cancer (CRC). However, the mesenteric immune microenvironment remains unclear. In this study, we investigated the immune landscape of the mesentery, particularly the role of lymphocytes and its association with the clinicopathological characteristics of CRC. Methods Flow cytometry was used to detect lymphocytes in the paired mesenteric tissue specimens adjacent to the colorectal tumors and normal mesenteric tissue specimens 10 cm away from the colorectal tumor edge and preoperative peripheral blood samples obtained from patients with CRC who underwent surgery. T-distributed stochastic neighbor embedding was utilized to analyze multiparameter flow cytometry data. Multiplex immunohistochemistry was performed to evaluate T cells subsets in the paired mesentery adjacent to the colorectal tumors and normal mesentery. The Fisher’s exact test and non-parametric Wilcoxon’s matched-pairs tests were used for statistical analysis. The non-parametric Mann-Whitney U test was used to determine associations between percentage data and clinical parameters of patients with CRC. Results We found that immune cells in the normal mesentery were mainly of lymphoid lineage. Compared with peripheral blood, the normal mesentery showed decreased NK cells and the CD4/CD8 ratio and increased CD3+ CD56+, memory CD4+ T, memory CD8+ T, CD4+ tissue-resident memory T (TRM), and CD8+ TRM cells. Compared with the normal mesentery, the mesentery adjacent to the colorectal tumor showed increased B and regulatory T cells and decreased NK, CD3+ CD56+, CD4+ TRM, and CD8+ TRM cells. Moreover, memory CD8+ T cells and plasmablasts are negatively correlated with the depth of invasion of CRC. Increased memory CD4+ T cells are associated with distant metastasis of CRC and high preoperative serum carcinoembryonic antigen levels. Conclusion The mesentery shows a specific immune microenvironment, which differs from that observed in peripheral blood. CRC can alter the mesenteric immune response to promote tumor progression.
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Affiliation(s)
- Zi-Xin Wu
- Department of Colorectal Surgery, The Second Affiliated Hospital of South China University of Technology, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Fei Wang
- Department of Colorectal Surgery, The Second Affiliated Hospital of South China University of Technology, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Liang Li
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yuan Yao
- Department of Colorectal Surgery, The Second Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Jie Long
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qing-Qing Luo
- Department of Colorectal Surgery, The Second Affiliated Hospital of South China University of Technology, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Zhi-Bin Zhao
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wang-Lin Li
- Department of Colorectal Surgery, The Second Affiliated Hospital of South China University of Technology, Guangzhou, China.,School of Medicine, South China University of Technology, Guangzhou, China
| | - Jie Cao
- Department of Colorectal Surgery, The Second Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Zhe-Xiong Lian
- School of Medicine, South China University of Technology, Guangzhou, China
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12
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Persson J, Puuvuori E, Zhang B, Velikyan I, Åberg O, Müller M, Nygren PÅ, Ståhl S, Korsgren O, Eriksson O, Löfblom J. Discovery, optimization and biodistribution of an Affibody molecule for imaging of CD69. Sci Rep 2021; 11:19151. [PMID: 34580321 PMCID: PMC8476556 DOI: 10.1038/s41598-021-97694-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 08/19/2021] [Indexed: 11/09/2022] Open
Abstract
Due to the wide scale of inflammatory processes in different types of disease, more sensitive and specific biomarkers are required to improve prevention and treatment. Cluster of differentiation 69 (CD69) is one of the earliest cell surface proteins expressed by activated leukocytes. Here we characterize and optimize potential new imaging probes, Affibody molecules targeting CD69 for imaging of activated immune cells. Analysis of candidates isolated in a previously performed selection from a Z variant E. coli library to the recombinant extracellular domain of human CD69, identified one cross-reactive Z variant with affinity to murine and human CD69. Affinity maturation was performed by randomization of the primary Z variant, followed by selections from the library. The resulting Z variants were evaluated for affinity towards human and murine CD69 and thermal stability. The in vivo biodistribution was assessed by SPECT/CT in rats following conjugation of the Z variants by a DOTA chelator and radiolabeling with Indium-111. A primary Z variant with a Kd of approximately 50 nM affinity to human and murine CD69 was identified. Affinity maturation generated 5 additional Z variants with improved or similar affinity. All clones exhibited suitable stability. Radiolabeling and in vivo biodistribution in rat demonstrated rapid renal clearance for all variants, while the background uptake and washout varied. The variant ZCD69:4 had the highest affinity for human and murine CD69 (34 nM) as well as the lowest in vivo background binding. In summary, we describe the discovery, optimization and evaluation of novel Affibody molecules with affinity for CD69. Affibody molecule ZCD69:4 is suitable for further development for imaging of activated immune cells.
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Affiliation(s)
- Jonas Persson
- Department of Protein Science, Division of Protein Engineering, KTH Royal Institute of Technology, Roslagstullsbacken 21, 10691, Stockholm, Sweden
| | - Emmi Puuvuori
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Dag Hammarskjölds väg 14C, 3tr, 75183, Uppsala, Sweden
| | - Bo Zhang
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Dag Hammarskjölds väg 14C, 3tr, 75183, Uppsala, Sweden
| | - Irina Velikyan
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Dag Hammarskjölds väg 14C, 3tr, 75183, Uppsala, Sweden
| | - Ola Åberg
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Dag Hammarskjölds väg 14C, 3tr, 75183, Uppsala, Sweden
| | - Malin Müller
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Per-Åke Nygren
- Department of Protein Science, Division of Protein Engineering, KTH Royal Institute of Technology, Roslagstullsbacken 21, 10691, Stockholm, Sweden
| | - Stefan Ståhl
- Department of Protein Science, Division of Protein Engineering, KTH Royal Institute of Technology, Roslagstullsbacken 21, 10691, Stockholm, Sweden
| | - Olle Korsgren
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Olof Eriksson
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Dag Hammarskjölds väg 14C, 3tr, 75183, Uppsala, Sweden.
| | - John Löfblom
- Department of Protein Science, Division of Protein Engineering, KTH Royal Institute of Technology, Roslagstullsbacken 21, 10691, Stockholm, Sweden.
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13
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Morosi LG, Cutine AM, Cagnoni AJ, Manselle-Cocco MN, Croci DO, Merlo JP, Morales RM, May M, Pérez-Sáez JM, Girotti MR, Méndez-Huergo SP, Pucci B, Gil AH, Huernos SP, Docena GH, Sambuelli AM, Toscano MA, Rabinovich GA, Mariño KV. Control of intestinal inflammation by glycosylation-dependent lectin-driven immunoregulatory circuits. SCIENCE ADVANCES 2021; 7:7/25/eabf8630. [PMID: 34144987 PMCID: PMC8213219 DOI: 10.1126/sciadv.abf8630] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 05/04/2021] [Indexed: 05/14/2023]
Abstract
Diverse immunoregulatory circuits operate to preserve intestinal homeostasis and prevent inflammation. Galectin-1 (Gal1), a β-galactoside-binding protein, promotes homeostasis by reprogramming innate and adaptive immunity. Here, we identify a glycosylation-dependent "on-off" circuit driven by Gal1 and its glycosylated ligands that controls intestinal immunopathology by targeting activated CD8+ T cells and shaping the cytokine profile. In patients with inflammatory bowel disease (IBD), augmented Gal1 was associated with dysregulated expression of core 2 β6-N-acetylglucosaminyltransferase 1 (C2GNT1) and α(2,6)-sialyltransferase 1 (ST6GAL1), glycosyltransferases responsible for creating or masking Gal1 ligands. Mice lacking Gal1 exhibited exacerbated colitis and augmented mucosal CD8+ T cell activation in response to 2,4,6-trinitrobenzenesulfonic acid; this phenotype was partially ameliorated by treatment with recombinant Gal1. While C2gnt1-/- mice exhibited aggravated colitis, St6gal1-/- mice showed attenuated inflammation. These effects were associated with intrinsic T cell glycosylation. Thus, Gal1 and its glycosylated ligands act to preserve intestinal homeostasis by recalibrating T cell immunity.
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Affiliation(s)
- Luciano G Morosi
- Laboratorio de Glicómica Funcional y Molecular, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - Anabela M Cutine
- Laboratorio de Glicómica Funcional y Molecular, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - Alejandro J Cagnoni
- Laboratorio de Glicómica Funcional y Molecular, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - Montana N Manselle-Cocco
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - Diego O Croci
- Instituto de Histología y Embriología de Mendoza (IHEM-CONICET), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, 5500 Mendoza, Argentina
| | - Joaquín P Merlo
- Laboratorio de Glicómica Funcional y Molecular, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
- Laboratorio de Inmuno-oncología Translacional, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - Rosa M Morales
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - María May
- Instituto de Investigaciones Farmacológicas (ININFA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1113 Ciudad de Buenos Aires, Argentina
| | - Juan M Pérez-Sáez
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - María R Girotti
- Laboratorio de Inmuno-oncología Translacional, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - Santiago P Méndez-Huergo
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - Betiana Pucci
- Sección de Enfermedades Inflamatorias, Hospital de Gastroenterología Carlos Bonorino Udaondo, 1264 Ciudad de Buenos Aires, Argentina
| | - Aníbal H Gil
- Sección de Enfermedades Inflamatorias, Hospital de Gastroenterología Carlos Bonorino Udaondo, 1264 Ciudad de Buenos Aires, Argentina
| | - Sergio P Huernos
- Sección de Enfermedades Inflamatorias, Hospital de Gastroenterología Carlos Bonorino Udaondo, 1264 Ciudad de Buenos Aires, Argentina
| | - Guillermo H Docena
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP-CONICET), Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), 1900 La Plata, Argentina
| | - Alicia M Sambuelli
- Sección de Enfermedades Inflamatorias, Hospital de Gastroenterología Carlos Bonorino Udaondo, 1264 Ciudad de Buenos Aires, Argentina
| | - Marta A Toscano
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
| | - Gabriel A Rabinovich
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina.
- Laboratorio de Inmuno-oncología Translacional, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina
- Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad de Buenos Aires, 1428 Ciudad de Buenos Aires, Argentina
| | - Karina V Mariño
- Laboratorio de Glicómica Funcional y Molecular, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 1428 Ciudad de Buenos Aires, Argentina.
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14
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Kumar V. Innate Lymphoid Cells and Adaptive Immune Cells Cross-Talk: A Secret Talk Revealed in Immune Homeostasis and Different Inflammatory Conditions. Int Rev Immunol 2021; 40:217-251. [PMID: 33733998 DOI: 10.1080/08830185.2021.1895145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The inflammatory immune response has evolved to protect the host from different pathogens, allergens, and endogenous death or damage-associated molecular patterns. Both innate and adaptive immune components are crucial in inducing an inflammatory immune response depending on the stimulus type and its duration of exposure or the activation of the primary innate immune response. As the source of inflammation is removed, the aggravated immune response comes to its homeostatic level. However, the failure of the inflammatory immune response to subside to its normal level generates chronic inflammatory conditions, including autoimmune diseases and cancer. Innate lymphoid cells (ILCs) are newly discovered innate immune cells, which are present in abundance at mucosal surfaces, including lungs, gastrointestinal tract, and reproductive tract. Also, they are present in peripheral blood circulation, skin, and lymph nodes. They play a crucial role in generating the pro-inflammatory immune response during diverse conditions. On the other hand, adaptive immune cells, including different types of T and B cells are major players in the pathogenesis of autoimmune diseases (type 1 diabetes mellitus, rheumatoid arthritis, psoriasis, and systemic lupus erythematosus, etc.) and cancers. Thus the article is designed to discuss the immunological role of different ILCs and their interaction with adaptive immune cells in maintaining the immune homeostasis, and during inflammatory autoimmune diseases along with other inflammatory conditions (excluding pathogen-induced inflammation), including cancer, graft-versus-host diseases, and human pregnancy.
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Affiliation(s)
- Vijay Kumar
- Children's Health Queensland Clinical Unit, School of Clinical Medicine, Faculty of Medicine, Mater Research, University of Queensland, St Lucia, Brisbane, Queensland, Australia.,School of Biomedical Sciences, Faculty of Medicine, University of Queensland, St Lucia, Brisbane, Queensland, Australia
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15
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Redondo-Antón J, Fontela MG, Notario L, Torres-Ruiz R, Rodríguez-Perales S, Lorente E, Lauzurica P. Functional Characterization of a Dual Enhancer/Promoter Regulatory Element Leading Human CD69 Expression. Front Genet 2020; 11:552949. [PMID: 33193627 PMCID: PMC7652794 DOI: 10.3389/fgene.2020.552949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 10/07/2020] [Indexed: 11/29/2022] Open
Abstract
The CD69 gene encodes a C-type lectin glycoprotein with immune regulatory properties which is expressed on the cell surfaces of all activated hematopoietic cells. CD69 activation kinetics differ by developmental stage, cell linage and activating conditions, and these differences have been attributed to the participation of complex gene regulatory networks. An evolutionarily conserved regulatory element, CNS2, located 4kb upstream of the CD69 gene transcriptional start site, has been proposed as the major candidate governing the gene transcriptional activation program. To investigate the function of human CNS2, we studied the effect of its endogenous elimination via CRISPR-Cas9 on CD69 protein and mRNA expression levels in various immune cell lines. Even when the entire promoter region was maintained, CNS2-/- cells did not express CD69, thus indicating that CNS2 has promoter-like characteristics. However, like enhancers, inverted CNS2 sustained transcription, although at a diminished levels, thereby suggesting that it has dual promoter and enhancer functions. Episomal luciferase assays further suggested that both functions are combined within the CNS2 regulatory element. In addition, CNS2 directs its own bidirectional transcription into two different enhancer-derived RNAs molecules (eRNAs) which are transcribed from two independent transcriptional start sites in opposite directions. This eRNA transcription is dependent on only the enhancer sequence itself, because in the absence of the CD69 promoter, sufficient RNA polymerase II levels are maintained at CNS2 to drive eRNA expression. Here, we describe a regulatory element with overlapping promoter and enhancer functions, which is essential for CD69 gene transcriptional regulation.
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Affiliation(s)
- Jennifer Redondo-Antón
- Immune Gene Regulation and Antigen Presentation Group, National Center for Microbiology, Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - M G Fontela
- Immune Gene Regulation and Antigen Presentation Group, National Center for Microbiology, Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - Laura Notario
- Immune Gene Regulation and Antigen Presentation Group, National Center for Microbiology, Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - Raúl Torres-Ruiz
- Molecular Cytogenetics and Genome Editing Unit, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Sandra Rodríguez-Perales
- Molecular Cytogenetics and Genome Editing Unit, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Elena Lorente
- Immune Gene Regulation and Antigen Presentation Group, National Center for Microbiology, Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - Pilar Lauzurica
- Immune Gene Regulation and Antigen Presentation Group, National Center for Microbiology, Institute of Health Carlos III (ISCIII), Madrid, Spain
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16
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Oral delivery of folate-targeted resveratrol-loaded nanoparticles for inflammatory bowel disease therapy in rats. Life Sci 2020; 262:118555. [PMID: 33035579 DOI: 10.1016/j.lfs.2020.118555] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 09/25/2020] [Accepted: 09/30/2020] [Indexed: 01/05/2023]
Abstract
AIMS In the current study, resveratrol-loaded PLGA nanoparticles targeted with folate were developed in order to protect resveratrol from fast degradation, modify its pharmacokinetics and increase its intestinal permeation. Then, the therapeutic efficacy of the prepared system was evaluated in suppression of colon inflammation on TNBS-induced colitis model. MAIN METHODS In this regard, resveratrol was encapsulated in PLGA and FA-conjugated PLGA in order to prepare non-targeted (PLGA-RSV) and targeted (PLGA-FA-RSV) platforms, respectively. KEY FINDINGS Obtained results demonstrated that the prepared formulations encapsulated the resveratrol with high encapsulation efficiency of 90.7% ± 5.1% for PLGA-RSV and 59.1% ± 3.3% for PLGA-FA-RSV. In vitro release experiment showed that the prepared formulations were capable of retaining good amount of resveratrol under the simulated gastric condition (HCl 0.1 N, pH 1.2), while significant amount of resveratrol was released under simulated intestinal condition (PBS, pH 7.4). The trans-well permeability rates through Caco-2 monolayer during 180 min, was determined to be 4.5%, 61% and 99% for resveratrol, PLGA-RSV and PLGA-FA-RSV respectively. The pathological analysis of the rat intestinal sections (hematoxylin & eosin staining) at 7th day post-TNBS colonic inflammation induction illustrated that the oral administrations of FA-PLGA-RSV and PLGA-RSV were able to significantly inhibit the inflammation and reduce neutrophil and lymphocytes accumulation. It is worth noting that the folate-targeted system demonstrated highest efficacy in suppressing colon inflammation. SIGNIFICANCE It could be concluded that the encapsulation of resveratrol into biodegradable folate-targeted PLGA nanoparticles could introduce a potent platform in suppressing colonic inflammation thus offering a great capability for clinical translation.
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17
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Zhu JJ, Stenfeldt C, Bishop EA, Canter JA, Eschbaumer M, Rodriguez LL, Arzt J. Mechanisms of Maintenance of Foot-and-Mouth Disease Virus Persistence Inferred From Genes Differentially Expressed in Nasopharyngeal Epithelia of Virus Carriers and Non-carriers. Front Vet Sci 2020; 7:340. [PMID: 32637426 PMCID: PMC7318773 DOI: 10.3389/fvets.2020.00340] [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: 03/02/2020] [Accepted: 05/15/2020] [Indexed: 12/13/2022] Open
Abstract
Foot-and-mouth disease virus (FMDV) causes persistent infection of nasopharyngeal epithelial cells in ~50% of infected ruminants. The mechanisms involved are not clear. This study provides a continued investigation of differentially expressed genes (DEG) identified in a previously published transcriptomic study analyzing micro-dissected epithelial samples from FMDV carriers and non-carriers. Pathway analysis of DEG indicated that immune cell trafficking, cell death and hematological system could be affected by the differential gene expression. Further examination of the DEG identified five downregulated (chemerin, CCL23, CXCL15, CXCL16, and CXCL17) and one upregulated (CCL2) chemokines in carriers compared to non-carriers. The differential expression could reduce the recruitment of neutrophils, antigen-experienced T cells and dendritic cells and increase the migration of macrophages and NK cells to the epithelia in carriers, which was supported by DEG expressed in these immune cells. Downregulated chemokine expression could be mainly due to the inhibition of canonical NFκB signaling based on DEG in the signaling pathways and transcription factor binding sites predicted from the proximal promoters. Additionally, upregulated CD69, IL33, and NID1 and downregulated CASP3, IL17RA, NCR3LG1, TP53BP1, TRAF3, and TRAF6 in carriers could inhibit the Th17 response, NK cell cytotoxicity and apoptosis. Based on our findings, we hypothesize that (1) under-expression of chemokines that recruit neutrophils, antigen-experienced T cells and dendritic cells, (2) blocking NK cell binding to target cells and (3) suppression of apoptosis induced by death receptor signaling, viral RNA, and cell-mediated cytotoxicity in the epithelia compromised virus clearance and allowed FMDV to persist. These hypothesized mechanisms provide novel information for further investigation of persistent FMDV infection.
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Affiliation(s)
- James J Zhu
- USDA-ARS, Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, Orient, NY, United States
| | - Carolina Stenfeldt
- USDA-ARS, Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, Orient, NY, United States.,Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, United States
| | - Elizabeth A Bishop
- USDA-ARS, Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, Orient, NY, United States
| | - Jessica A Canter
- USDA-ARS, Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, Orient, NY, United States.,Plum Island Animal Disease Center, Oak Ridge Institute for Science and Education (ORISE), Orient, NY, United States
| | - Michael Eschbaumer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald, Germany
| | - Luis L Rodriguez
- USDA-ARS, Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, Orient, NY, United States
| | - Jonathan Arzt
- USDA-ARS, Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, Orient, NY, United States
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18
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Gorabi AM, Hajighasemi S, Kiaie N, Gheibi Hayat SM, Jamialahmadi T, Johnston TP, Sahebkar A. The pivotal role of CD69 in autoimmunity. J Autoimmun 2020; 111:102453. [PMID: 32291138 DOI: 10.1016/j.jaut.2020.102453] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/31/2020] [Accepted: 03/31/2020] [Indexed: 02/06/2023]
Abstract
Autoimmune disorders are outcomes of impaired activity of the immune system regarding the maintenance of tolerance, which results in tissue damage secondary to an excess in the inflammatory response. Under normal conditions, the cells in the adaptive immune system are highly controlled to remain unresponsive against self-antigens (self-Ags) through various mechanisms and during different stages of maturation. CD69 (cluster of differentiation 69), a C-type lectin disulfide-linked homodimer, is expressed on different leukocytes, including newly-activated lymphocytes, certain subtypes of memory T-cells, infiltrating lymphocytes isolated from patients with chronic inflammatory disorders, and regulatory T-cells (Tregs). Cumulative evidence from in vitro and in vivo studies has revealed an immunoregulatory role for CD69. This marker has been reported to play a controversial role in chronic human inflammatory disorders. Many investigations have linked the absence of CD69 with a predisposition to inflammatory and/or autoimmune conditions, which indicates an immunoregulatory function for CD69 by mechanisms such as controlling the balance between differentiation of Th/Treg cells and enhancing the suppressive activity of Tregs. However, some reports from human studies have indicated that CD69 may exert a stimulatory effect on the inflammatory response. In this review, we first present a brief summary of the concept of 'immune tolerance' and, subsequently, review previous studies to uncover the details that underlie the immunoregulatory effects of CD69.
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Affiliation(s)
- Armita Mahdavi Gorabi
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeideh Hajighasemi
- Department of Medical Biotechnology, Faculty of Paramedicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Nasim Kiaie
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Tannaz Jamialahmadi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Thomas P Johnston
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Amirhossein Sahebkar
- Halal Research Center of IRI, FDA, Tehran, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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19
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Dulic S, Toldi G, Sava F, Kovács L, Molnár T, Milassin Á, Farkas K, Rutka M, Balog A. Specific T-Cell Subsets Can Predict the Efficacy of Anti-TNF Treatment in Inflammatory Bowel Diseases. Arch Immunol Ther Exp (Warsz) 2020; 68:12. [PMID: 32248339 PMCID: PMC7128008 DOI: 10.1007/s00005-020-00575-5] [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: 05/16/2019] [Accepted: 03/03/2020] [Indexed: 12/19/2022]
Abstract
The effect of TNF-blockers on T-lymphocyte subsets is largely unknown in inflammatory bowel diseases (IBDs). The aim of the present study was to analyze the prevalence of T-cell subtypes and their correlation to therapeutic response. Sixty-eight patients with Crohn’s disease (CD), 46 with ulcerative colitis (UC) were enrolled. (1) The clinical course was followed after the initiation of TNF-blockers (prospective study). (2) The immunophenotype was also compared between long-term anti-TNF treated-responders and non-responders (cross-sectional study). The results were compared with those of therapy-naïve patients with active disease and those in remission with non-biological immunosuppressive therapy, and with healthy controls. Fourteen subtypes of peripheral blood T cells were measured with flow cytometry. The prevalence of Th2 and Th17 cells, of HLA-DR- and CD69-positive CD4 and CD8 cells, was higher, whereas the percentage of CD45RA-positive CD4 and CD8 cells was lower in both IBDs than in controls. CD8CD69 cell frequency was lower in remission, and decreased during anti-TNF therapy in CD responders. CD8CD45RO memory cells had higher prevalence in UC non-responders than in those starting anti-TNF. CD4CD45RO percentage < 49.05 at the initiation of TNF-blockers was predictive of a subsequent therapeutic response in CD, and Th2 and Th17 prevalence correlated with the duration of remission on TNF-blockers in UC. This study provided a detailed description of the T-cell composition in IBDs. CD8CD69 prevalence may be an activity marker in CD, and CD4CD45RO, Th2 and Th17 levels could be predictive for a therapeutic response to anti-TNF.
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Affiliation(s)
- Sonja Dulic
- Department of Rheumatology and Immunology, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Kálvária sgt. 57, Szeged, 6725, Hungary
| | - Gergely Toldi
- First Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary
| | - Florentina Sava
- First Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary
| | - László Kovács
- Department of Rheumatology and Immunology, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Kálvária sgt. 57, Szeged, 6725, Hungary
| | - Tamás Molnár
- First Department of Medicine, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Szeged, Hungary
| | - Ágnes Milassin
- First Department of Medicine, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Szeged, Hungary
| | - Klaudia Farkas
- First Department of Medicine, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Szeged, Hungary
| | - Mariann Rutka
- First Department of Medicine, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Szeged, Hungary
| | - Attila Balog
- Department of Rheumatology and Immunology, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Kálvária sgt. 57, Szeged, 6725, Hungary.
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20
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Häselbarth L, Ouwens DM, Teichweyde N, Hochrath K, Merches K, Esser C. The small chain fatty acid butyrate antagonizes the TCR-stimulation-induced metabolic shift in murine epidermal gamma delta T cells. EXCLI JOURNAL 2020; 19:334-350. [PMID: 32256272 PMCID: PMC7105938 DOI: 10.17179/excli2020-1123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 02/28/2020] [Indexed: 12/11/2022]
Abstract
The metabolic requirements change during cell proliferation and differentiation. Upon antigen-stimulation, effector T cells switch from adenosine-triphospate (ATP)-production by oxidative phosphorylation in the mitochondria to glycolysis. In the gut it was shown that short chain fatty acids (SCFA), fermentation products of the microbiota in colon, ameliorate inflammatory reactions by supporting the differentiation of regulatory T cells. SCFA are a major energy source, but they are also anabolic metabolites, histone-deacetylase-inhibitors and activators of G protein receptors. Recently, it was reported that a topical application of the SCFA butyrate promotes regulatory T cells in the skin. Here we ask if the SCFA butyrate, propionate and acetate affect the energy metabolism and inflammatory potential of dendritic epidermal T cells (DETC), the innate resident skin γδ T cell population. Using the Seahorse™ technology, we measured glycolysis and oxidative phosphorylation (OXPHOS) in a murine DETC cell line, 7-17, upon TCR-stimulation by CD3/CD28 crosslinking, with or without SCFA addition. TCR engagement resulted in a change of the ratio glycolysis/OXPHOS. A similar metabolic shift has been described for activated CD4 T cells. Addition of 5 mM SCFA, in particular butyrate, antagonized the effect. Stimulated DETC secrete cytokines, e.g. the pro-inflammatory cytokine interferon-gamma (IFNγ), and thereby regulate skin homeostasis. Addition of butyrate and propionate to the cultures at non-toxic concentrations decreased secretion of IFNγ by DETC and increased the expression of the immunoregulatory surface receptor CD69. We hypothesize that SCFA can dampen the inflammatory activity of DETC.
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Affiliation(s)
- Lukas Häselbarth
- IUF - Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, 40225 Düsseldorf, Germany
| | - D Margriet Ouwens
- German Diabetes Research Center, Auf´m Hennekamp 65, 40225 Düsseldorf, Germany.,German Center for Diabetes Research (DZD), München-Neuherberg, Germany.,Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Nadine Teichweyde
- IUF - Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, 40225 Düsseldorf, Germany
| | - Katrin Hochrath
- IUF - Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, 40225 Düsseldorf, Germany
| | - Katja Merches
- IUF - Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, 40225 Düsseldorf, Germany
| | - Charlotte Esser
- IUF - Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, 40225 Düsseldorf, Germany
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21
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Hao X, Gao M, He L, Ye X, Yang J, Zhang F, Liu R, Wei H. Deficiency of O-linked-glycosylation regulates activation of T cells and aggravates Concanavalin A-induced liver injury. Toxicology 2020; 433-434:152411. [PMID: 32081641 DOI: 10.1016/j.tox.2020.152411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 01/16/2020] [Accepted: 02/16/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Protein glycosylation is involved in immunological recognition and immune cell activation. The role of O-glycosylation in Concanavalin A (Con A)-induced autoimmune hepatitis (AIH) was elucidated in the present study. METHODS Mice were intravenously injected with Con A (10 mg/kg) to establish an AIH mouse model. Here, 24 h prior to administration of Con A, experimental mice were intragastrically administrated with O-glycosylation inhibitor (benzyl-α-GalNAc) at doses of 1 and 5 mg/kg, respectively, while control mice were administrated with the same volume of saline. Before and after administration of Con A for 6 and 12 h, mice were sacrificed and their plasma and livers were collected to score liver injury. Peripheral blood, spleen, and thymus were collected for flow cytometry analysis. The expression levels of neutrophilic alkaline phosphatase-3 (NALP3) and NALP6 in liver were evaluated as well. RESULTS Pre-treatment with benzyl-α-GalNAc increased the serum transaminase levels and induced more infiltration and necrosis in livers of Con A administrated mice. The levels of some pro-inflammation cytokines also increased in administrated mice. In addition, pretreatment with benzyl-α-GalNAc up-regulated the expression levels of NALP3 and NALP6. And benzyl-α-GalNAc inhibited the levels of apoptosis of thymus cells and influenced activation of T cells in peripheral blood and spleen of Con A administrated mice, especially that accelerated the physiological progression of CD4+CD25-CD69+ subset. CONCLUSION The present research demonstrated that benzyl-α-GalNAc aggravated Con A-induced AIH, and the role of the O-glycosylation inhibitor as the aggravation may be related to regulation of the levels of cytokines, as well as influencing proliferation of T cells.
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Affiliation(s)
- Xiaohua Hao
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015, China.
| | - Meixin Gao
- Department of Gastroenterology, Peking University Ditan Teaching Hospital, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015, China.
| | - Lingling He
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015, China.
| | - Xiaohui Ye
- Department of Gastroenterology, Beijing Huaxin Hospital, the First Affiliated Hospital of Tsinghua Uinversity, A Neighborhood of No.6, Jiuxianqiao, Chaoyang District, Beijing, 100016, China.
| | - Junru Yang
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015, China.
| | - Fuyang Zhang
- Department of Gastroenterology, Peking University Ditan Teaching Hospital, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015, China.
| | - Ran Liu
- Miyun Education Hospital, Capital Medicine University, No. 383 Yangguang Street, Miyun District, Beijing, 101500, China.
| | - Hongshan Wei
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015, China; Department of Gastroenterology, Peking University Ditan Teaching Hospital, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015, China.
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22
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Strasser K, Birnleitner H, Beer A, Pils D, Gerner MC, Schmetterer KG, Bachleitner-Hofmann T, Stift A, Bergmann M, Oehler R. Immunological differences between colorectal cancer and normal mucosa uncover a prognostically relevant immune cell profile. Oncoimmunology 2018; 8:e1537693. [PMID: 30713795 PMCID: PMC6343804 DOI: 10.1080/2162402x.2018.1537693] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 10/05/2018] [Accepted: 10/10/2018] [Indexed: 12/22/2022] Open
Abstract
T cells in colorectal cancer (CRC) are associated with improved survival. However, checkpoint immunotherapies antagonizing the suppression of these cells are ineffective in the great majority of patients. To better understand the immune cell regulation in CRC, we compared tumor-associated T lymphocytes and macrophages to the immune cell infiltrate of normal mucosa. Human colorectal tumor specimen and tumor-distant normal mucosa tissues of the same patients were collected. Phenotypes and functionality of tissue-derived T cells and macrophages were characterized using immunohistochemistry, RNA in situ hybridization, and multiparameter flow cytometry. CRC contained significantly higher numbers of potentially immunosuppressive CD39 and Helios-expressing regulatory T cells in comparison to normal mucosa. Surprisingly, we found a concomitant increase of pro-inflammatory IFNγ -producing T cells. PD-L1+ stromal cells were decreased in the tumor tissue. Macrophages in the tumor compared to tumor-distant normal tissue appear to have an altered phenotype, identified by HLA-DR, CD14, CX3CR1, and CD64, and tolerogenic CD206+ macrophages are quantitatively reduced. The prognostic effect of these observed differences between distant mucosa and tumor tissue on the overall survival was examined using gene expression data of 298 CRC patients. The combined gene expression of increased FOXP3, IFNγ, CD14, and decreased CD206 correlated with a poor prognosis in CRC patients. These data reveal that the CRC microenvironment promotes the coexistence of seemingly antagonistic suppressive and pro-inflammatory immune responses and might provide an explanation why a blockade of the PD1/PD-L1 axis is ineffective in CRC. This should be taken into account when designing novel treatment strategies.
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Affiliation(s)
- Katharina Strasser
- Department of Surgery and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,CBmed GmbH - Center for Biomarker Research in Medicine, Graz, Austria
| | - Hanna Birnleitner
- Department of Surgery and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Andrea Beer
- Department of Pathology, Medical University of Vienna, Vienna, Austria
| | - Dietmar Pils
- Department of Surgery and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Center for Medical Statistics, Informatics and Intelligent Systems, Section for Clinical Biometrics, Medical University of Vienna, Vienna, Austria
| | - Marlene C Gerner
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Klaus G Schmetterer
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | | | - Anton Stift
- Department of Surgery and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Michael Bergmann
- Department of Surgery and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Rudolf Oehler
- Department of Surgery and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
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23
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van der Gracht AMF, de Geus MAR, Camps MGM, Ruckwardt TJ, Sarris AJC, Bremmers J, Maurits E, Pawlak JB, Posthoorn MM, Bonger KM, Filippov DV, Overkleeft HS, Robillard MS, Ossendorp F, van Kasteren SI. Chemical Control over T-Cell Activation in Vivo Using Deprotection of trans-Cyclooctene-Modified Epitopes. ACS Chem Biol 2018; 13:1569-1576. [PMID: 29733186 PMCID: PMC6006443 DOI: 10.1021/acschembio.8b00155] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
Activation
of a cytotoxic T-cell is a complex multistep process,
and tools to study the molecular events and their dynamics that result
in T-cell activation in situ and in vivo are scarce. Here, we report the design and use of conditional epitopes
for time-controlled T-cell activation in vivo. We
show that trans-cyclooctene-protected SIINFEKL (with
the lysine amine masked) is unable to elicit the T-cell response characteristic
for the free SIINFEKL epitope. Epitope uncaging by means of an inverse-electron
demand Diels–Alder (IEDDA) event restored T-cell activation
and provided temporal control of T-cell proliferation in vivo.
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Affiliation(s)
- Anouk M. F. van der Gracht
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Mark A. R. de Geus
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Marcel G. M. Camps
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, P.O. Box 9600, 2300 RC Leiden, The Netherlands
| | - Tracy J. Ruckwardt
- Vaccine Research Center, National Institute of Allergy and Infectious Disease, National Institute of Health, 40 Convent Drive, Building 40, Bethesda, Maryland 20814, United States
| | - Alexi J. C. Sarris
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Jessica Bremmers
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Elmer Maurits
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Joanna B. Pawlak
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Michelle M. Posthoorn
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Kimberly M. Bonger
- Department of Biomolecular Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Dmitri V. Filippov
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Herman S. Overkleeft
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Marc S. Robillard
- Tagworks Pharmaceuticals, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, The Netherlands
| | - Ferry Ossendorp
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, P.O. Box 9600, 2300 RC Leiden, The Netherlands
| | - Sander I. van Kasteren
- Leiden Institute of Chemistry and The Institute for Chemical Immunology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
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24
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Riva A, Patel V, Kurioka A, Jeffery HC, Wright G, Tarff S, Shawcross D, Ryan JM, Evans A, Azarian S, Bajaj JS, Fagan A, Patel V, Mehta K, Lopez C, Simonova M, Katzarov K, Hadzhiolova T, Pavlova S, Wendon JA, Oo YH, Klenerman P, Williams R, Chokshi S. Mucosa-associated invariant T cells link intestinal immunity with antibacterial immune defects in alcoholic liver disease. Gut 2018; 67:918-930. [PMID: 29097439 PMCID: PMC5890654 DOI: 10.1136/gutjnl-2017-314458] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 09/14/2017] [Accepted: 09/15/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND/AIMS Intestinal permeability with systemic distribution of bacterial products are central in the immunopathogenesis of alcoholic liver disease (ALD), yet links with intestinal immunity remain elusive. Mucosa-associated invariant T cells (MAIT) are found in liver, blood and intestinal mucosa and are a key component of antibacterial host defences. Their role in ALD is unknown. METHODS/DESIGN We analysed frequency, phenotype, transcriptional regulation and function of blood MAIT cells in severe alcoholic hepatitis (SAH), alcohol-related cirrhosis (ARC) and healthy controls (HC). We also examined direct impact of ethanol, bacterial products from faecal extracts and antigenic hyperstimulation on MAIT cell functionality. Presence of MAIT cells in colon and liver was assessed by quantitative PCR and immunohistochemistry/gene expression respectively. RESULTS In ARC and SAH, blood MAIT cells were dramatically depleted, hyperactivated and displayed defective antibacterial cytokine/cytotoxic responses. These correlated with suppression of lineage-specific transcription factors and hyperexpression of homing receptors in the liver with intrahepatic preservation of MAIT cells in ALD. These alterations were stronger in SAH, where surrogate markers of bacterial infection and microbial translocation were higher than ARC. Ethanol exposure in vitro, in vivo alcohol withdrawal and treatment with Escherichia coli had no effect on MAIT cell frequencies, whereas exposure to faecal bacteria/antigens induced functional impairments comparable with blood MAIT cells from ALD and significant MAIT cell depletion, which was not observed in other T cell compartments. CONCLUSIONS In ALD, the antibacterial potency of MAIT cells is compromised as a consequence of contact with microbial products and microbiota, suggesting that the 'leaky' gut observed in ALD drives MAIT cell dysfunction and susceptibility to infection in these patients.
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Affiliation(s)
- Antonio Riva
- Institute of Hepatology London, Foundation for Liver Research, London, UK,Division of Transplantation, Immunology and Mucosal Biology, Faculty of Life Sciences and Medicine, King’s College London, London, UK
| | - Vishal Patel
- Institute of Hepatology London, Foundation for Liver Research, London, UK,Division of Transplantation, Immunology and Mucosal Biology, Faculty of Life Sciences and Medicine, King’s College London, London, UK,Institute of Liver Studies, King’s College London, London, UK
| | - Ayako Kurioka
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
| | - Hannah C Jeffery
- Centre for Liver Research and NIHR BRU in Liver Disease, University of Birmingham, Birmingham, UK
| | - Gavin Wright
- Department of Gastroenterology, Basildon University Hospital, Basildon, UK
| | - Sarah Tarff
- Department of Gastroenterology, Basildon University Hospital, Basildon, UK
| | - Debbie Shawcross
- Division of Transplantation, Immunology and Mucosal Biology, Faculty of Life Sciences and Medicine, King’s College London, London, UK,Institute of Liver Studies, King’s College London, London, UK
| | - Jennifer M Ryan
- Institute of Liver Studies, King’s College London, London, UK
| | - Alexander Evans
- Department of Gastroenterology, Royal Berkshire Hospital, Reading, UK
| | - Sarah Azarian
- Institute of Hepatology London, Foundation for Liver Research, London, UK
| | - Jasmohan S Bajaj
- Department of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University and McGuire VAMC, Richmond, Virginia, USA
| | - Andrew Fagan
- Department of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University and McGuire VAMC, Richmond, Virginia, USA
| | - Vinood Patel
- Department of Biomedical Sciences, University of Westminster, London, UK
| | - Kosha Mehta
- Department of Biomedical Sciences, University of Westminster, London, UK
| | - Carlos Lopez
- Department of Biomedical Sciences, University of Westminster, London, UK
| | - Marieta Simonova
- Department of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - Krum Katzarov
- Department of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - Tanya Hadzhiolova
- Department of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - Slava Pavlova
- Department of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - Julia A Wendon
- Institute of Liver Studies, King’s College London, London, UK
| | - Ye Htun Oo
- Centre for Liver Research and NIHR BRU in Liver Disease, University of Birmingham, Birmingham, UK
| | - Paul Klenerman
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
| | - Roger Williams
- Institute of Hepatology London, Foundation for Liver Research, London, UK,Division of Transplantation, Immunology and Mucosal Biology, Faculty of Life Sciences and Medicine, King’s College London, London, UK
| | - Shilpa Chokshi
- Institute of Hepatology London, Foundation for Liver Research, London, UK,Division of Transplantation, Immunology and Mucosal Biology, Faculty of Life Sciences and Medicine, King’s College London, London, UK
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Vadstrup K, Galsgaard ED, Jensen H, Lanier LL, Ryan JC, Chen SY, Nolan GP, Vester-Andersen MK, Pedersen JS, Gerwien J, Jensen T, Bendtsen F. NKG2D ligand expression in Crohn's disease and NKG2D-dependent stimulation of CD8 + T cell migration. Exp Mol Pathol 2017; 103:56-70. [PMID: 28684217 DOI: 10.1016/j.yexmp.2017.06.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 05/24/2017] [Accepted: 06/30/2017] [Indexed: 12/15/2022]
Abstract
Interaction between the activating NKG2D receptor on lymphocytes and its ligands MICA, MICB, and ULBP1-6 modulate T and NK cell activity and may contribute to the pathogenesis of Crohn's disease (CD). NKG2D ligands are generally not expressed on the cell surface of normal, non-stressed cells, but expression of MICA and MICB in CD intestine has been reported. In this exploratory study, we further characterize the expression of NKG2D and its ligands, including the less well-described ULBP4-6, in CD, and test if NKG2D ligand interactions are involved in the migration of activated T cells into the affected mucosal compartments. Intestinal tissue from CD patients and healthy controls were analyzed by flow cytometry, mass cytometry, and immunohistochemistry for expression of NKG2D and ligands, and for cytokine release. Furthermore, NKG2D-dependent chemotaxis of activated CD8+ T cells across a monolayer of ligand-expressing human intestinal endothelial cells was examined. Activated lymphocytes down-regulated NKG2D expression upon accumulation in inflamed CD intestine. NKG2D expression on CD56+ T and γδ T cells from inflamed tissue seemed inversely correlated with CRP levels and cytokine release. B cells, monocytes, mucosal epithelium, and vascular endothelium expressed NKG2D ligands in inflamed CD intestine. The expression of NKG2D ligands was correlated with cytokine release, but was highly variable between patients. Stimulation of vascular intestinal endothelial cells in vitro induced expression of NKG2D ligands, including MICA/B and ULBP2/6. Blockade of NKG2D on CD8+ T cells inhibited the migration over ligand-expressing endothelial cells. Intestinal induction of NKG2D ligands and ligand-induced down-regulation of NKG2D in CD suggest that the NKG2D-ligand interaction may be involved in both the activation and recruitment of NKG2D+ lymphocytes into the inflamed CD intestine.
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Affiliation(s)
- Kasper Vadstrup
- Gastrounit, Medical Division, Hvidovre University Hospital, DK-2650 Hvidovre, Denmark; Faculty of Health Sciences, The Panum Institute, University of Copenhagen, DK-2200 Copenhagen N, Denmark; Biopharmaceutical Research Unit, Novo Nordisk A/S, DK-2760 Maaloev, Denmark; Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA.
| | | | - Helle Jensen
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Lewis L Lanier
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - James C Ryan
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA; Department of Medicine, Veterans Affairs Medical Center and University of California San Francisco, San Francisco, CA, USA
| | - Shih-Yu Chen
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Garry P Nolan
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | | | - Julie Steen Pedersen
- Gastrounit, Medical Division, Hvidovre University Hospital, DK-2650 Hvidovre, Denmark
| | - Jens Gerwien
- Biopharmaceutical Research Unit, Novo Nordisk A/S, DK-2760 Maaloev, Denmark
| | - Teis Jensen
- Biopharmaceutical Research Unit, Novo Nordisk A/S, DK-2760 Maaloev, Denmark
| | - Flemming Bendtsen
- Gastrounit, Medical Division, Hvidovre University Hospital, DK-2650 Hvidovre, Denmark; Faculty of Health Sciences, The Panum Institute, University of Copenhagen, DK-2200 Copenhagen N, Denmark
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26
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Prasad S, Hu S, Sheng WS, Chauhan P, Singh A, Lokensgard JR. The PD-1: PD-L1 pathway promotes development of brain-resident memory T cells following acute viral encephalitis. J Neuroinflammation 2017; 14:82. [PMID: 28407741 PMCID: PMC5390367 DOI: 10.1186/s12974-017-0860-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Accepted: 04/05/2017] [Indexed: 12/30/2022] Open
Abstract
Background Previous work from our laboratory has demonstrated that during acute viral brain infection, glial cells modulate antiviral T cell effector responses through the PD-1: PD-L1 pathway, thereby limiting the deleterious consequences of unrestrained neuroinflammation. Here, we evaluated the PD-1: PD-L1 pathway in development of brain-resident memory T cells (bTRM) following murine cytomegalovirus (MCMV) infection. Methods Flow cytometric analysis of immune cells was performed at 7, 14, and 30 days post-infection (dpi) to assess the shift of brain-infiltrating CD8+ T cell populations from short-lived effector cells (SLEC) to memory precursor effector cells (MPEC), as well as generation of bTRMs. Results In wild-type (WT) animals, we observed a switch in the phenotype of brain-infiltrating CD8+ T cell populations from KLRG1+ CD127− (SLEC) to KLRG1− CD127+ (MPEC) during transition from acute through chronic phases of infection. At 14 and 30 dpi, the majority of CD8+ T cells expressed CD127, a marker of memory cells. In contrast, fewer CD8+ T cells expressed CD127 within brains of infected, PD-L1 knockout (KO) animals. Notably, in WT mice, a large population of CD8+ T cells was phenotyped as CD103+ CD69+, markers of bTRM, and differences were observed in the numbers of these cells when compared to PD-L1 KOs. Immunohistochemical studies revealed that brain-resident CD103+ bTRM cells were localized to the parenchyma. Higher frequencies of CXCR3 were also observed among WT animals in contrast to PD-L1 KOs. Conclusions Taken together, our results indicate that bTRMs are present within the CNS following viral infection and the PD-1: PD-L1 pathway plays a role in the generation of this brain-resident population. Electronic supplementary material The online version of this article (doi:10.1186/s12974-017-0860-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sujata Prasad
- Department of Medicine, Neurovirology Laboratory, University of Minnesota, 3-107 Microbiology Research Facility, 689 23rd Avenue S.E., Minneapolis, MN, 55455, USA
| | - Shuxian Hu
- Department of Medicine, Neurovirology Laboratory, University of Minnesota, 3-107 Microbiology Research Facility, 689 23rd Avenue S.E., Minneapolis, MN, 55455, USA
| | - Wen S Sheng
- Department of Medicine, Neurovirology Laboratory, University of Minnesota, 3-107 Microbiology Research Facility, 689 23rd Avenue S.E., Minneapolis, MN, 55455, USA
| | - Priyanka Chauhan
- Department of Medicine, Neurovirology Laboratory, University of Minnesota, 3-107 Microbiology Research Facility, 689 23rd Avenue S.E., Minneapolis, MN, 55455, USA
| | - Amar Singh
- Department of Medicine, Neurovirology Laboratory, University of Minnesota, 3-107 Microbiology Research Facility, 689 23rd Avenue S.E., Minneapolis, MN, 55455, USA
| | - James R Lokensgard
- Department of Medicine, Neurovirology Laboratory, University of Minnesota, 3-107 Microbiology Research Facility, 689 23rd Avenue S.E., Minneapolis, MN, 55455, USA.
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27
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Montraveta A, Lee-Vergés E, Roldán J, Jiménez L, Cabezas S, Clot G, Pinyol M, Xargay-Torrent S, Rosich L, Arimany-Nardí C, Aymerich M, Villamor N, López-Guillermo A, Pérez-Galán P, Roué G, Pastor-Anglada M, Campo E, López-Guerra M, Colomer D. CD69 expression potentially predicts response to bendamustine and its modulation by ibrutinib or idelalisib enhances cytotoxic effect in chronic lymphocytic leukemia. Oncotarget 2016; 7:5507-20. [PMID: 26701728 PMCID: PMC4868702 DOI: 10.18632/oncotarget.6685] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 12/12/2015] [Indexed: 12/22/2022] Open
Abstract
Clinical responses to bendamustine in chronic lymphocytic leukemia (CLL) are highly heterogeneous and no specific markers to predict sensitivity to this drug have been reported. In order to identify biomarkers of response, we analyzed the in vitro activity of bendamustine and the gene expression profile in primary CLL cells. We observed that mRNA expression of CD69 (CD69) and ITGAM (CD11b) constitute the most powerful predictor of response to bendamustine. When we interrogated the predictive value of the corresponding cell surface proteins, the expression of the activation marker CD69 was the most reliable predictor of sensitivity to bendamustine. Importantly, a multivariate analysis revealed that the predictive value of CD69 expression was independent from other clinico-biological CLL features. We also showed that when CLL cells were co-cultured with distinct subtypes of stromal cells, an upregulation of CD69 was accompanied by a reduced sensitivity to bendamustine. In agreement with this, tumor cells derived from lymphoid tumor niches harbored higher CD69 expression and were less sensitive to bendamustine than their peripheral blood counterparts. Furthermore, pretreatment of CD69 high CLL cases with the B-cell receptor (BCR) pathway inhibitors ibrutinib and idelalisib decreased CD69 levels and enhanced bendamustine cytotoxic effect. Collectively, our findings indicate that CD69 could be a predictor of bendamustine response in CLL patients and the combination of clinically-tested BCR signaling inhibitors with bendamustine may represent a promising strategy for bendamustine low responsive CLL cases.
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Affiliation(s)
- Arnau Montraveta
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Eriong Lee-Vergés
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Jocabed Roldán
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Laura Jiménez
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Sandra Cabezas
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Guillem Clot
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Magda Pinyol
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Sílvia Xargay-Torrent
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Laia Rosich
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Cristina Arimany-Nardí
- Departament de Bioquímica i Biologia Molecular, Institut de Biomedicina, Universitat de Barcelona and Oncology Program, CIBEREHD, Barcelona, Spain
| | - Marta Aymerich
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Neus Villamor
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Armando López-Guillermo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematology Department, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Patricia Pérez-Galán
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Gaël Roué
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Marçal Pastor-Anglada
- Departament de Bioquímica i Biologia Molecular, Institut de Biomedicina, Universitat de Barcelona and Oncology Program, CIBEREHD, Barcelona, Spain
| | - Elías Campo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Mónica López-Guerra
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Dolors Colomer
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
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Inflammation-induced CD69 + Kupffer cell feedback inhibits T cell proliferation via membrane-bound TGF-β1. SCIENCE CHINA-LIFE SCIENCES 2016; 59:1259-1269. [PMID: 27933593 DOI: 10.1007/s11427-016-0357-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 11/23/2016] [Indexed: 02/08/2023]
Abstract
Kupffer cells, tissue-resident macrophage lineage cell, are enriched in vertebrate liver. The mouse F4/80+ Kupffer cells have been subclassified into two subpopulations according to their phenotype and function: CD68+ subpopulation with potent reactive oxygen species (ROS) production and phagocytic capacities, and CD11b+ subpopulation with a potent capacity to produce T helper 1 cytokines. In addition, CD11b+ Kupffer cells/macrophages may be migrated from the bone marrow or spleen, especially in inflammatory conditions of the liver. For analyzing diverse Kupffer cell subsets, we infected mice with Listeria monocytogenes and analyzed the phenotype variations of hepatic Kupffer cells. During L. monocytogenes infection, hepatic CD69+ Kupffer cells were significantly induced and expanded, and CD69+ Kupffer cells expressed higher level of CD11b, and particularly high level of membrane-bound TGF-β1 (mTGF-β1) but lower level of F4/80. We also found that clodronate liposome administration did not eliminate hepatic CD69+ Kupffer cell subset. We consider the hepatic CD69+ Kupffer cell population corresponds to CD11b+ Kupffer cells, the bone marrow-derived population. Hepatic CD69+ Kupffer cells suppressed Ag-nonspecific and OVA-specific CD4 T cell proliferation through mTGF-β1 both in vitro and in vivo, meanwhile, they did not interfere with activation of CD4 T cells. Thus, we have identified a new subset of inflammation-induced CD69+ Kupffer cells which can feedback inhibit CD4 T cell response via cell surface TGF-β1 at the late stage of immune response against infection. CD69+ Kupffer cells may contribute to protect host from pathological injure by preventing overactivation of immune response.
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29
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Donor Cell Composition and Reactivity Predict Risk of Acute Graft-versus-Host Disease after Allogeneic Hematopoietic Stem Cell Transplantation. J Immunol Res 2016; 2016:5601204. [PMID: 27965986 PMCID: PMC5124677 DOI: 10.1155/2016/5601204] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/13/2016] [Accepted: 09/29/2016] [Indexed: 11/17/2022] Open
Abstract
Background. Graft-versus-host disease (GVHD) is a serious complication after allogeneic hematopoietic stem cell transplantation (HSCT). We designed a functional assay for assessment of individual risk for acute GVHD. Study Design and Methods. Blood samples were collected from patients and donors before HSCT. Two groups of seven patients each were selected, one in which individuals developed acute GVHD grades II-IV and one in which none showed any clinical signs of GVHD. Peripheral blood mononuclear cells (PBMCs) isolated from donors were incubated in mixed lymphocyte cultures (MLCs) with recipient PBMCs. The cells were characterized by flow cytometry before and after MLC. Results. Samples from donors in the GVHD group contained significantly lower frequencies of naïve γδ T-cells and T-cells expressing NK-cell markers CD56 and CD94. Donor samples in this group also exhibited lower frequencies of naïve CD95+ T-cells compared to controls. After MLC, there were dissimilarities in the CD4/CD8 T-cell ratio and frequency of CD69+ T-cells between the two patient groups, with the non-GVHD group showing higher frequencies of CD8+ and CD69+ T-cells. Conclusion. We conclude that a thorough flow cytometric analysis of donor cells for phenotype and allogeneic reactivity may be of value when assessing pretransplant risk for severe acute GVHD.
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30
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Kadivar M, Petersson J, Svensson L, Marsal J. CD8αβ+ γδ T Cells: A Novel T Cell Subset with a Potential Role in Inflammatory Bowel Disease. THE JOURNAL OF IMMUNOLOGY 2016; 197:4584-4592. [PMID: 27849165 DOI: 10.4049/jimmunol.1601146] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 10/13/2016] [Indexed: 01/27/2023]
Abstract
γδ T cells have been attributed a wide variety of functions, which in some cases may appear as contradictory. To better understand the enigmatic biology of γδ T cells it is crucial to define the constituting subpopulations. γδ T cells have previously been categorized into two subpopulations: CD8αα+ and CD8- cells. In this study we have defined and characterized a novel subset of human γδ T-cells expressing CD8αβ. These CD8αβ+ γδ T cells differed from the previously described γδ T cell subsets in several aspects, including the degree of enrichment within the gut mucosa, the activation status in blood, the type of TCRδ variant used in blood, and small but significant differences in their response to IL-2 stimulation. Furthermore, the novel subset expressed cytotoxic mediators and CD69, and produced IFN-γ and TNF-α. In patients with active inflammatory bowel disease the mucosal frequencies of CD8αβ+ γδ T cells were significantly lower as compared with healthy controls, correlated negatively with the degree of disease activity, and increased to normal levels as a result of anti-TNF-α therapy. In conclusion, our results demonstrate that CD8αβ+ γδ T cells constitute a novel lymphocyte subset, which is strongly enriched within the gut and may play an important role in gut homeostasis and mucosal healing in inflammatory bowel disease.
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Affiliation(s)
| | - Julia Petersson
- Immunology Section, Lund University, S-22184 Lund, Sweden; and
| | - Lena Svensson
- Immunology Section, Lund University, S-22184 Lund, Sweden; and
| | - Jan Marsal
- Immunology Section, Lund University, S-22184 Lund, Sweden; and .,Department of Gastroenterology, Skåne University Hospital, S-22185 Lund, Sweden
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Cold-inducible RNA-binding protein activates splenic T cells during sepsis in a TLR4-dependent manner. Cell Mol Immunol 2016; 15:38-47. [PMID: 27569563 DOI: 10.1038/cmi.2016.43] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 06/28/2016] [Accepted: 06/28/2016] [Indexed: 12/29/2022] Open
Abstract
Cold-inducible RNA-binding protein (CIRP) is a novel inflammatory mediator that stimulates the release of proinflammatory cytokines from macrophages in sepsis. Given the immune dysregulation that characterizes sepsis, the effect of CIRP on other immune cells is an area of increasing interest that has not yet been studied. In the present study, we hypothesized that extracellular CIRP promotes activation of T lymphocytes in the spleen during sepsis. We observed that mice subjected to sepsis by cecal ligation and puncture showed significantly higher expression of the early activation markers CD69 and CD25 at 20 h on CD4+ splenic T cells, and significantly higher CD69 expression on CD8+ splenic T cells compared with sham-operated controls. Furthermore, at 20 h after receiving intravenous injection of recombinant murine CIRP (rmCIRP, 5 mg/kg body weight (BW)) or PBS (vehicle), those mice receiving rmCIRP showed significantly increased expression of CD69 and CD25 on both CD4+ and CD8+ splenic T cells. This effect, however, was not seen in TLR4-deficient mice after rmCIRP injection. In addition, treatment with CIRP predisposed CD4+ T cells to a Th1 hyperinflammatory response profile, and influenced CD8+ T cells toward a cytotoxic profile. Taken together, our findings indicate that CIRP is a proinflammatory mediator that plays an important role in T-cell dysregulation during sepsis in a TLR4-dependent manner.
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32
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Fu H, Ward EJ, Marelli-Berg FM. Mechanisms of T cell organotropism. Cell Mol Life Sci 2016; 73:3009-33. [PMID: 27038487 PMCID: PMC4951510 DOI: 10.1007/s00018-016-2211-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 03/21/2016] [Accepted: 03/22/2016] [Indexed: 02/06/2023]
Abstract
Protective immunity relies upon T cell differentiation and subsequent migration to target tissues. Similarly, immune homeostasis requires the localization of regulatory T cells (Tregs) to the sites where immunity takes place. While naïve T lymphocytes recirculate predominantly in secondary lymphoid tissue, primed T cells and activated Tregs must traffic to the antigen rich non-lymphoid tissue to exert effector and regulatory responses, respectively. Following priming in draining lymph nodes, T cells acquire the 'homing receptors' to facilitate their access to specific tissues and organs. An additional level of topographic specificity is provided by T cells receptor recognition of antigen displayed by the endothelium. Furthermore, co-stimulatory signals (such as those induced by CD28) have been shown not only to regulate T cell activation and differentiation, but also to orchestrate the anatomy of the ensuing T cell response. We here review the molecular mechanisms supporting trafficking of both effector and regulatory T cells to specific antigen-rich tissues.
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Affiliation(s)
- Hongmei Fu
- William Harvey Research Institute, Heart Centre, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Eleanor Jayne Ward
- William Harvey Research Institute, Heart Centre, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Federica M Marelli-Berg
- William Harvey Research Institute, Heart Centre, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK.
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Spec A, Shindo Y, Burnham CAD, Wilson S, Ablordeppey EA, Beiter ER, Chang K, Drewry AM, Hotchkiss RS. T cells from patients with Candida sepsis display a suppressive immunophenotype. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2016; 20:15. [PMID: 26786705 PMCID: PMC4719210 DOI: 10.1186/s13054-016-1182-z] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 01/05/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND Despite appropriate therapy, Candida bloodstream infections are associated with a mortality rate of approximately 40%. In animal models, impaired immunity due to T cell exhaustion has been implicated in fungal sepsis mortality. The purpose of this study was to determine potential mechanisms of fungal-induced immunosuppression via immunophenotyping of circulating T lymphocytes from patients with microbiologically documented Candida bloodstream infections. METHODS Patients with blood cultures positive for any Candida species were studied. Non-septic critically ill patients with no evidence of bacterial or fungal infection were controls. T cells were analyzed via flow cytometry for cellular activation and for expression of positive and negative co-stimulatory molecules. Both the percentages of cells expressing particular immunophenotypic markers as well as the geometric mean fluorescence intensity (GMFI), a measure of expression of the number of receptors or ligands per cell, were quantitated. RESULTS Twenty-seven patients with Candida bloodstream infections and 16 control patients were studied. Compared to control patients, CD8 T cells from patients with Candidemia had evidence of cellular activation as indicated by increased CD69 expression while CD4 T cells had decreased expression of the major positive co-stimulatory molecule CD28. CD4 and CD8 T cells from patients with Candidemia expressed markers typical of T cell exhaustion as indicated by either increased percentages of or increased MFI for programmed cell death 1 (PD-1) or its ligand (PD-L1). CONCLUSIONS Circulating immune effector cells from patients with Candidemia display an immunophenotype consistent with immunosuppression as evidenced by T cell exhaustion and concomitant downregulation of positive co-stimulatory molecules. These findings may help explain why patients with fungal sepsis have a high mortality despite appropriate antifungal therapy. Development of immunoadjuvants that reverse T cell exhaustion and boost host immunity may offer one way to improve outcome in this highly lethal disorder.
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Affiliation(s)
- Andrej Spec
- Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA
| | - Yuichiro Shindo
- Department of Anesthesiology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA
| | - Carey-Ann D Burnham
- Department of Pathology and Immunology, Division of Laboratory and Genomic Medicine, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA
| | - Strother Wilson
- Department of Anesthesiology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA
| | - Enyo A Ablordeppey
- Department of Anesthesiology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA
| | - Evan R Beiter
- Department of Anesthesiology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA
| | - Katherine Chang
- Department of Anesthesiology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA
| | - Anne M Drewry
- Department of Anesthesiology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA
| | - Richard S Hotchkiss
- Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA. .,Department of Anesthesiology, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA. .,Department of Surgery, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO, 63110, USA.
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Identification and Analysis of Natural Killer Cells in Murine Nasal Passages. PLoS One 2015; 10:e0142920. [PMID: 26575399 PMCID: PMC4648567 DOI: 10.1371/journal.pone.0142920] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 10/28/2015] [Indexed: 01/02/2023] Open
Abstract
Background Natural killer (NK) cells in the upper respiratory airways are not well characterized. In the current study, we sought to characterize and functionally assess murine nasal NK cells. Methods Using immunohistochemistry and flow cytometry, we compared the nasal NK cells of Ncr1GFP/+ knock-in mice, whose NK cells produced green fluorescent protein, with their splenic and pulmonary counterparts. In addition, we functionally analyzed the nasal NK cells of these mice in vitro. To assess the in vivo functions of nasal NK cells, C57BL/6 mice depleted of NK cells after treatment with PK136 antibody were nasally infected with influenza virus PR8. Results Immunohistochemical analysis confirmed the presence of NK cells in the lamina propria of nasal mucosa, and flow cytometry showed that these cells were of NK cell lineage. The expression patterns of Ly49 receptor, CD11b/CD27, CD62L and CD69 revealed that nasal NK cells had an immature and activated phenotype compared with that of their splenic and pulmonary counterparts. Effector functions including degranulation and IFN(interferon)-γ production after in vitro stimulation with phorbol 12-myristate-13-acetate plus ionomycin or IL(interleukin)-12 plus IL-18 were dampened in nasal NK cells, and the depletion of NK cells led to an increased influenza virus titer in nasal passages. Conclusions The NK cells of the murine nasal passage belong to the conventional NK cell linage and characteristically demonstrate an immature and activated phenotype. Despite their hyporesponsiveness in vitro, nasal NK cells play important roles in the host defense against nasal influenza virus infection.
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Circulating tumor-associated neutrophils (cTAN) contribute to circulating tumor cell survival by suppressing peripheral leukocyte activation. Tumour Biol 2015; 37:5397-404. [PMID: 26563367 DOI: 10.1007/s13277-015-4349-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 10/30/2015] [Indexed: 12/29/2022] Open
Abstract
During malignant progression, primary tumors rebuild leukocyte profile and suppress the host anti-tumor immune response. Tumor-associated neutrophils (TAN) increased in the cancer patients and emerged as an important participant and regulator of immune responses. The aim of this study is to investigate the role of circulating TAN (cTAN) in the metastatic process of advanced malignancy. We tested circulating neutrophils from patients (n = 180) with various types of cancer using flow cytometry analyses. We also used B16F10 cell-implanted C57BL/6 tumor-bearing mice model to simulate the advanced malignancy. Peripheral neutrophils were isolated by ficoll density gradient centrifugation, and in vitro tumor-leukocyte co-culture model was used to test tumor cell survival under leukocyte challenge condition. Here, we showed that neutrophils increased in the peripheral blood under the pathological condition of advanced malignancy both in cancer patients and in tumor-bearing mice. In mouse model, the malignantly increased neutrophils were identified as TAN according to the gene transcriptional analyses. We also showed that cTAN enhance tumor metastasis and cTAN could inhibit the activation of the peripheral leukocytes and rescue tumor cells from leukocyte challenge. In conclusion, our finding suggests that the abundance of cTAN in advanced cancer patients contributes to the circulating tumor cell survival by suppressing peripheral leukocyte activation.
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Abstract
Medicinal plants have been the main remedy to treat various ailments for a long time and nowadays, many drugs have been developed from traditional medicine. This paper reviews some medicinal plants and their main constituents which possess anti-inflammatory activities useful for curing joint inflammation, inflammatory skin disorders, cardiovascular inflammation and other inflammatory diseases. Here, we provide a brief overview of quick and easy reading on the role of medicinal plants and their main constituents in these inflammatory diseases. We hope that this overview will shed some light on the function of these natural anti-inflammatory compounds and attract the interest of investigators aiming at the design of novel therapeutic approaches for the treatment of various inflammatory conditions.
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Affiliation(s)
- Francesco Maione
- a Department of Pharmacy , University of Naples, Federico II , Naples , Italy
| | - Rosa Russo
- a Department of Pharmacy , University of Naples, Federico II , Naples , Italy
| | - Haroon Khan
- b Department of Pharmacy , Abdul Wali Khan University of Mardan , Mardan , Pakistan
| | - Nicola Mascolo
- a Department of Pharmacy , University of Naples, Federico II , Naples , Italy
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