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Liu H, Dai H, Qiu F, Chen Y, Liang CL, Yang B, Gong N, Bromberg JS, Dai Z. Electrostimulation suppresses allograft rejection via promoting lymphatic regulatory T cell migration mediated by lymphotoxin (LT)-LTβ receptor signaling. Am J Transplant 2024:S1600-6135(24)00392-7. [PMID: 38992495 DOI: 10.1016/j.ajt.2024.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/21/2024] [Accepted: 06/25/2024] [Indexed: 07/13/2024]
Abstract
Conventional immunosuppressants that suppress allograft rejection cause various side-effects. Although regulatory T cells (Tregs) are essential for allograft survival, limited efficacy of Treg therapy demands improvement. Thus, it is imperative to seek new approaches to enhancing Treg suppression. Low-intensity electrostimulation (ES) has been shown to exert anti-inflammatory effects without causing major adverse reactions. However, it remains unknown whether and how ES regulates alloimmunity. Here we found that regional ES delayed murine skin allograft rejection and promoted long-term allograft survival induced by an mTOR inhibitor, rapamycin. ES also extended islet allograft survival. Mechanistically, ES enhanced expression of LTα on Tregs after transplantation. Blockade of lymphotoxin β receptor (LTβR)-mediated non-classical NFκB signaling suppressed lymphatic Treg migration and largely reversed the effects of ES on allograft survival. Moreover, ES failed to extend allograft survival when recipients lacked LTα/lymph nodes or if transferred Tregs lacked LTα. Therefore, ES promoted the lymphatic migration of CD4+Foxp3+ Tregs by upregulating their surface expression of LTα. Finally, ES augmented expression of LTα on murine or human Tregs, but not conventional T cells, while promoting their calcium influx in vitro. This ES-mediated upregulation of LTα relied on calcium influx. Thus, our findings have unveiled novel mechanisms underlying ES-mediated immunoregulation.
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Affiliation(s)
- Huazhen Liu
- Section of Immunology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China; State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou, Guangdong 510006, China
| | - Helong Dai
- Department of Kidney Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Feifei Qiu
- Section of Immunology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China
| | - Yuchao Chen
- Section of Immunology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China
| | - Chun-Ling Liang
- Section of Immunology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China
| | - Bin Yang
- Department of Cardiovascular Sciences, College of Life Sciences University of Leicester, Leicester, LE1 9HN, UK
| | - Nianqiao Gong
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation of Ministry of Education, National Health Commission and Chinese Academy of Medical Sciences, Wuhan, Hubei 430030, China.
| | - Jonathan S Bromberg
- Kidney and Pancreas Transplantation, Department of Surgery and Department of Microbiology & Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Zhenhua Dai
- Section of Immunology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China.
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2
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Graham JP, Zhang Y, He L, Gonzalez-Fernandez T. CRISPR-GEM: A Novel Machine Learning Model for CRISPR Genetic Target Discovery and Evaluation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.01.601587. [PMID: 39005295 PMCID: PMC11244939 DOI: 10.1101/2024.07.01.601587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
CRISPR gene editing strategies are shaping cell therapies through precise and tunable control over gene expression. However, achieving reliable therapeutic effects with improved safety and efficacy requires informed target gene selection. This depends on a thorough understanding of the involvement of target genes in gene regulatory networks (GRNs) that regulate cell phenotype and function. Machine learning models have been previously used for GRN reconstruction using RNA- seq data, but current techniques are limited to single cell types and focus mainly on transcription factors. This restriction overlooks many potential CRISPR target genes, such as those encoding extracellular matrix components, growth factors, and signaling molecules, thus limiting the applicability of these models for CRISPR strategies. To address these limitations, we have developed CRISPR-GEM, a multi-layer perceptron (MLP)-based synthetic GRN constructed to accurately predict the downstream effects of CRISPR gene editing. First, input and output nodes are identified as differentially expressed genes between defined experimental and target cell/tissue types respectively. Then, MLP training learns regulatory relationships in a black-box approach allowing accurate prediction of output gene expression using only input gene expression. Finally, CRISPR-mimetic perturbations are made to each input gene individually and the resulting model predictions are compared to those for the target group to score and assess each input gene as a CRISPR candidate. The top scoring genes provided by CRISPR-GEM therefore best modulate experimental group GRNs to motivate transcriptomic shifts towards a target group phenotype. This machine learning model is the first of its kind for predicting optimal CRISPR target genes and serves as a powerful tool for enhanced CRISPR strategies across a range of cell therapies.
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3
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Loffredo LF, Savage TM, Ringham OR, Arpaia N. Treg-tissue cell interactions in repair and regeneration. J Exp Med 2024; 221:e20231244. [PMID: 38668758 PMCID: PMC11046849 DOI: 10.1084/jem.20231244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/22/2024] [Accepted: 04/11/2024] [Indexed: 04/29/2024] Open
Abstract
Regulatory T (Treg) cells are classically known for their critical immunosuppressive functions that support peripheral tolerance. More recent work has demonstrated that Treg cells produce pro-repair mediators independent of their immunosuppressive function, a process that is critical to repair and regeneration in response to numerous tissue insults. These factors act on resident parenchymal and structural cells to initiate repair in a tissue-specific context. This review examines interactions between Treg cells and tissue-resident non-immune cells-in the context of tissue repair, fibrosis, and cancer-and discusses areas for future exploration.
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Affiliation(s)
- Lucas F. Loffredo
- Department of Microbiology and Immunology, Columbia University, New York, NY, USA
| | - Thomas M. Savage
- Department of Microbiology and Immunology, Columbia University, New York, NY, USA
| | - Olivia R. Ringham
- Department of Microbiology and Immunology, Columbia University, New York, NY, USA
| | - Nicholas Arpaia
- Department of Microbiology and Immunology, Columbia University, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
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4
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Wu Y, Zhao S, Guo W, Liu Y, Requena Mullor MDM, Rodrìguez RA, Wei R. Systematic analysis of the prognostic value and immunological function of LTBR in human cancer. Aging (Albany NY) 2024; 16:129-152. [PMID: 38175686 PMCID: PMC10817409 DOI: 10.18632/aging.205356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 11/15/2023] [Indexed: 01/05/2024]
Abstract
Lymphotoxin beta receptor (LTBR) is a positive T cell proliferation regulator gene. It is closely associated with the tumor immune microenvironment. However, its role in cancer and immunotherapy is unclear. Firstly, the expression level and prognostic value of LTBR were analyzed. Secondly, the expression of LTBR in clinical stages, immune subtypes, and molecular subtypes was analyzed. The correlation between LTBR and immune regulatory genes, immune checkpoint genes, and RNA modification genes was then analyzed. Correlations between LTBR and immune cells, scores, cancer-related functional status, tumor stemness index, mismatch repair (MMR) genes, and DNA methyltransferase were also analyzed. In addition, we analyzed the role of LTBR in DNA methylation, mutational status, tumor mutation burden (TMB), and microsatellite instability (MSI). Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Gene Set Enrichment Analysis (GSEA) were used to explore the role of LTBR in pan-cancer. Finally, the drugs associated with LTBR were analyzed. The expression of LTBR was confirmed using quantitative real-time PCR and Western blot. LTBR is significantly overexpressed in most cancers and is associated with low patient survival. In addition, LTBR expression was strongly correlated with immune cells, score, cancer-related functional status, tumor stemness index, MMR genes, DNA methyltransferase, DNA methylation, mutational status, TMB, and MSI. Enrichment analysis revealed that LTBR was associated with apoptosis, necroptosis, and immune-related pathways. Finally, multiple drugs targeting LTBR were identified. LTBR is overexpressed in several tumors and is associated with a poor prognosis. It is related to immune-related genes and immune cell infiltration.
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Affiliation(s)
- Yinteng Wu
- Department of Orthopedic and Trauma Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Shijian Zhao
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Wenliang Guo
- Department of Rehabilitation Medicine, The Eighth Affiliated Hospital of Guangxi Medical University, Guigang, Guangxi 537100, China
| | - Ying Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | | | | | - Ruqiong Wei
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
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5
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Bei KF, Moshkelgosha S, Liu BJ, Juvet S. Intragraft regulatory T cells in the modern era: what can high-dimensional methods tell us about pathways to allograft acceptance? Front Immunol 2023; 14:1291649. [PMID: 38077395 PMCID: PMC10701590 DOI: 10.3389/fimmu.2023.1291649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 10/31/2023] [Indexed: 12/18/2023] Open
Abstract
Replacement of diseased organs with transplanted healthy donor ones remains the best and often only treatment option for end-stage organ disease. Immunosuppressants have decreased the incidence of acute rejection, but long-term survival remains limited. The broad action of current immunosuppressive drugs results in global immune impairment, increasing the risk of cancer and infections. Hence, achievement of allograft tolerance, in which graft function is maintained in the absence of global immunosuppression, has long been the aim of transplant clinicians and scientists. Regulatory T cells (Treg) are a specialized subset of immune cells that control a diverse array of immune responses, can prevent allograft rejection in animals, and have recently been explored in early phase clinical trials as an adoptive cellular therapy in transplant recipients. It has been established that allograft residency by Tregs can promote graft acceptance, but whether intragraft Treg functional diversification and spatial organization contribute to this process is largely unknown. In this review, we will explore what is known regarding the properties of intragraft Tregs during allograft acceptance and rejection. We will summarize recent advances in understanding Treg tissue residency through spatial, transcriptomic and high-dimensional cytometric methods in both animal and human studies. Our discussion will explore properties of intragraft Tregs in mediating operational tolerance to commonly transplanted solid organs. Finally, given recent developments in Treg cellular therapy, we will review emerging knowledge of whether and how these adoptively transferred cells enter allografts in humans. An understanding of the properties of intragraft Tregs will help lay the foundation for future therapies that will promote immune tolerance.
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Affiliation(s)
- Ke Fan Bei
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Sajad Moshkelgosha
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| | - Bo Jie Liu
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Stephen Juvet
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
- Department of Immunology, University of Toronto, Toronto, ON, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON, Canada
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6
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Zheng M, Yao C, Ren G, Mao K, Chung H, Chen X, Hu G, Wang L, Luan X, Fang D, Li D, Zhong C, Lu X, Cannon N, Zhang M, Bhandoola A, Zhao K, O'Shea JJ, Zhu J. Transcription factor TCF-1 regulates the functions, but not the development, of lymphoid tissue inducer subsets in different tissues. Cell Rep 2023; 42:112924. [PMID: 37540600 PMCID: PMC10504686 DOI: 10.1016/j.celrep.2023.112924] [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: 03/30/2022] [Revised: 06/15/2023] [Accepted: 07/18/2023] [Indexed: 08/06/2023] Open
Abstract
Lymphoid tissue inducer (LTi) cells, a subset of innate lymphoid cells (ILCs), play an essential role in the formation of secondary lymphoid tissues. However, the regulation of the development and functions of this ILC subset is still elusive. In this study, we report that the transcription factor T cell factor 1 (TCF-1), just as GATA3, is indispensable for the development of non-LTi ILC subsets. While LTi cells are still present in TCF-1-deficient mice, the organogenesis of Peyer's patches (PPs), but not of lymph nodes, is impaired in these mice. LTi cells from different tissues have distinct gene expression patterns, and TCF-1 regulates the expression of lymphotoxin specifically in PP LTi cells. Mechanistically, TCF-1 may directly and/or indirectly regulate Lta, including through promoting the expression of GATA3. Thus, the TCF-1-GATA3 axis, which plays an important role during T cell development, also critically regulates the development of non-LTi cells and tissue-specific functions of LTi cells.
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Affiliation(s)
- Mingzhu Zheng
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; Department of Microbiology and Immunology School of Medicine, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Southeast University, Nanjing, Jiangsu 210009, China.
| | - Chen Yao
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892, USA; Department of Immunology & Kidney Cancer Program, Harold C. Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Gang Ren
- Laboratory of Epigenome Biology, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; College of Animal Science and Technology, Northwest A&F University, Shannxi 712100, China
| | - Kairui Mao
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Hyunwoo Chung
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Xi Chen
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Gangqing Hu
- Laboratory of Epigenome Biology, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; Bioinformatics Core, West Virginia University, Morgantown, WV 26506, USA; Department of Microbiology, Immunology, and Cell Biology, School of Medicine, West Virginia University, Morgantown, WV 26506, USA
| | - Lei Wang
- Bioinformatics Core, West Virginia University, Morgantown, WV 26506, USA
| | - Xuemei Luan
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Difeng Fang
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Dan Li
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; Institute of Immunology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China; Department of Clinical Laboratory, the Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Chao Zhong
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Xiaoxiao Lu
- Laboratory of Genome Integrity, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nikki Cannon
- Bioinformatics Core, West Virginia University, Morgantown, WV 26506, USA
| | - Mingxu Zhang
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Haining 314400, China
| | - Avinash Bhandoola
- Laboratory of Genome Integrity, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Keji Zhao
- Laboratory of Epigenome Biology, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - John J O'Shea
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jinfang Zhu
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
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7
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Jackson DG. Lymphatic trafficking of immune cells and insights for cancer metastasis. Clin Exp Metastasis 2023:10.1007/s10585-023-10229-3. [PMID: 37606814 DOI: 10.1007/s10585-023-10229-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/28/2023] [Indexed: 08/23/2023]
Abstract
Most cancers and in particular carcinomas metastasise via the lymphatics to draining lymph nodes from where they can potentially achieve systemic dissemination by invasion of high endothelial blood venules (HEVs) in the paracortex [1, 2]. Currently however, the mechanisms by which tumours invade and migrate within the lymphatics are incompletely understood, although it seems likely they exploit at least some of the normal physiological mechanisms used by immune cells to access lymphatic capillaries and traffic to draining lymph nodes in the course of immune surveillance, immune modulation and the resolution of inflammation [3, 4]. Typically these include directional guidance via chemotaxis, haptotaxis and durotaxis, adhesion to the vessel surface via receptors including integrins, and junctional re-modelling by MMPs (Matrix MetalloProteinases) and ADAMs (A Disintegrin And Metalloproteinases) [5-7]. This short review focusses on a newly emerging mechanism for lymphatic entry that involves the large polysaccharide hyaluronan (HA) and its key lymphatic and immune cell receptors respectively LYVE-1 (Lymphatic Vessel Endothelial receptor) and CD44, and outlines recent work which indicates this axis may also be used by some tumours to aid nodal metastasis.
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Affiliation(s)
- David G Jackson
- Radcliffe Department of Medicine, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK.
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8
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Guo J, Xu Z, Gunderson RC, Xu B, Michie SA. LFA-1/ICAM-1 Adhesion Pathway Mediates the Homeostatic Migration of Lymphocytes from Peripheral Tissues into Lymph Nodes through Lymphatic Vessels. Biomolecules 2023; 13:1194. [PMID: 37627259 PMCID: PMC10452152 DOI: 10.3390/biom13081194] [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: 05/22/2023] [Revised: 07/22/2023] [Accepted: 07/29/2023] [Indexed: 08/27/2023] Open
Abstract
Lymphocyte function-associated antigen-1 (LFA-1) and its endothelial ligand intercellular adhesion molecule-1 (ICAM-1) are important for the migration of lymphocytes from blood vessels into lymph nodes. However, it is largely unknown whether these molecules mediate the homeostatic migration of lymphocytes from peripheral tissues into lymph nodes through lymphatic vessels. In this study, we find that, in naive mice, ICAM-1 is expressed on the sinus endothelia of lymph nodes, but not on the lymphatic vessels of peripheral tissues. In in vivo lymphocyte migration assays, memory CD4+ T cells migrated to lymph nodes from peripheral tissues much more efficiently than from blood vessels, as compared to naive CD4+ T cells. Moreover, ICAM-1 deficiency in host mice significantly inhibited the migration of adoptively transferred wild-type donor lymphocytes from peripheral tissues, but not from blood vessels, into lymph nodes. The migration of LFA-1-deficient donor lymphocytes from peripheral tissues into the lymph nodes of wild-type host mice was also significantly reduced as compared to wild-type donor lymphocytes. Furthermore, the number of memory T cells in lymph nodes was significantly reduced in the absence of ICAM-1 or LFA-1. Thus, our study extends the functions of the LFA-1/ICAM-1 adhesion pathway, indicating its novel role in controlling the homeostatic migration of lymphocytes from peripheral tissues into lymph nodes and maintaining memory T cellularity in lymph nodes.
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Affiliation(s)
- Jia Guo
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA; (J.G.); (Z.X.); (R.C.G.)
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
- Center for Hypertension Care, Shanxi Medical University First Hospital, Taiyuan 030012, China
| | - Zeyu Xu
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA; (J.G.); (Z.X.); (R.C.G.)
- Department of Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Rachel C. Gunderson
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA; (J.G.); (Z.X.); (R.C.G.)
| | - Baohui Xu
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA; (J.G.); (Z.X.); (R.C.G.)
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Sara A. Michie
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA; (J.G.); (Z.X.); (R.C.G.)
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9
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Li L, Wu L, Kensiski A, Zhao J, Shirkey MW, Song Y, Piao W, Zhang T, Mei Z, Gavzy SJ, Ma B, Saxena V, Lee YS, Xiong Y, Li X, Fan X, Abdi R, Bromberg JS. FRC transplantation restores lymph node conduit defects in laminin α4-deficient mice. JCI Insight 2023; 8:e167816. [PMID: 37092548 PMCID: PMC10243809 DOI: 10.1172/jci.insight.167816] [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: 12/06/2022] [Accepted: 03/03/2023] [Indexed: 04/25/2023] Open
Abstract
Fibroblastic reticular cells (FRCs) play important roles in tolerance by producing laminin α4 (Lama4) and altering lymph node (LN) structure and function. The present study revealed the specific roles of extracellular matrix Lama4 in regulating LN conduits using FRC-specific KO mouse strains. FRC-derived Lama4 maintained conduit fiber integrity, as its depletion altered conduit morphology and structure and reduced homeostatic conduit flow. Lama4 regulated the lymphotoxin β receptor (LTβR) pathway, which is critical for conduit and LN integrity. Depleting LTβR in FRCs further reduced conduits and impaired reticular fibers. Lama4 was indispensable for FRC generation and survival, as FRCs lacking Lama4 displayed reduced proliferation but upregulated senescence and apoptosis. During acute immunization, FRC Lama4 deficiency increased antigen flow through conduits. Importantly, adoptive transfer of WT FRCs to FRC Lama4-deficient mice rescued conduit structure, ameliorated Treg and chemokine distribution, and restored transplant allograft acceptance, which were all impaired by FRC Lama4 depletion. Single-cell RNA sequencing analysis of LN stromal cells indicated that the laminin and collagen signaling pathways linked crosstalk among FRC subsets and endothelial cells. This study demonstrated that FRC Lama4 is responsible for maintaining conduits by FRCs and can be harnessed to potentiate FRC-based immunomodulation.
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Affiliation(s)
- Lushen Li
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Long Wu
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Allison Kensiski
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Jing Zhao
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Marina W. Shirkey
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Yang Song
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Wenji Piao
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | | | - Samuel J. Gavzy
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Bing Ma
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Vikas Saxena
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Young S. Lee
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Yanbao Xiong
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Xiaofei Li
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Xiaoxuan Fan
- Flow Cytometry Shared Service, Greenebaum Comprehensive Cancer Center, Baltimore, Maryland, USA
| | - Reza Abdi
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jonathan S. Bromberg
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
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10
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McGovern KE, Sonar SA, Watanabe M, Coplen CP, Bradshaw CM, Nikolich JŽ. The aging of the immune system and its implications for transplantation. GeroScience 2023:10.1007/s11357-022-00720-2. [PMID: 36626019 PMCID: PMC9838392 DOI: 10.1007/s11357-022-00720-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 12/21/2022] [Indexed: 01/11/2023] Open
Abstract
By the last third of life, most mammals, including humans, exhibit a decline in immune cell numbers, immune organ structure, and immune defense of the organism, commonly known as immunosenescence. This decline leads to clinical manifestations of increased susceptibility to infections, particularly those caused by emerging and reemerging microorganisms, which can reach staggering levels-infection with SARS-CoV-2 has been 270-fold more lethal to older adults over 80 years of age, compared to their 18-39-year-old counterparts. However, while this would be expected to be beneficial to situations where hyporeactivity of the immune system may be desirable, this is not always the case. Here, we discuss the cellular and molecular underpinnings of immunosenescence as they pertain to outcomes of solid organ and hematopoietic transplantation.
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Affiliation(s)
- Kathryn E McGovern
- Department of Immunobiology, University of Arizona, Tucson, AZ, 85724, USA
- Arizona Center On Aging, The University of Arizona, University of Arizona College of Medicine-Tucson, Tucson, AZ, 85724, USA
- BIO5 Institute, University of Arizona, Tucson, AZ, USA
| | - Sandip A Sonar
- Department of Immunobiology, University of Arizona, Tucson, AZ, 85724, USA
- Arizona Center On Aging, The University of Arizona, University of Arizona College of Medicine-Tucson, Tucson, AZ, 85724, USA
| | - Makiko Watanabe
- Department of Immunobiology, University of Arizona, Tucson, AZ, 85724, USA
- Arizona Center On Aging, The University of Arizona, University of Arizona College of Medicine-Tucson, Tucson, AZ, 85724, USA
| | - Christopher P Coplen
- Department of Immunobiology, University of Arizona, Tucson, AZ, 85724, USA
- Arizona Center On Aging, The University of Arizona, University of Arizona College of Medicine-Tucson, Tucson, AZ, 85724, USA
| | - Christine M Bradshaw
- Department of Immunobiology, University of Arizona, Tucson, AZ, 85724, USA
- Arizona Center On Aging, The University of Arizona, University of Arizona College of Medicine-Tucson, Tucson, AZ, 85724, USA
| | - Janko Ž Nikolich
- Department of Immunobiology, University of Arizona, Tucson, AZ, 85724, USA.
- Arizona Center On Aging, The University of Arizona, University of Arizona College of Medicine-Tucson, Tucson, AZ, 85724, USA.
- BIO5 Institute, University of Arizona, Tucson, AZ, USA.
- The Aegis Consortium for Pandemic-free Future, University of Arizona Health Sciences, University of Arizona, Tucson, 85719, USA.
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11
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Wilting J, Becker J. The lymphatic vascular system: much more than just a sewer. Cell Biosci 2022; 12:157. [PMID: 36109802 PMCID: PMC9476376 DOI: 10.1186/s13578-022-00898-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022] Open
Abstract
Almost 400 years after the (re)discovery of the lymphatic vascular system (LVS) by Gaspare Aselli (Asellius G. De lactibus, sive lacteis venis, quarto vasorum mesaraicorum genere, novo invento Gasparis Asellii Cremo. Dissertatio. (MDCXXIIX), Milan; 1628.), structure, function, development and evolution of this so-called 'second' vascular system are still enigmatic. Interest in the LVS was low because it was (and is) hardly visible, and its diseases are not as life-threatening as those of the blood vascular system. It is not uncommon for patients with lymphedema to be told that yes, they can live with it. Usually, the functions of the LVS are discussed in terms of fluid homeostasis, uptake of chylomicrons from the gut, and immune cell circulation. However, the broad molecular equipment of lymphatic endothelial cells suggests that they possess many more functions, which are also reflected in the pathophysiology of the system. With some specific exceptions, lymphatics develop in all organs. Although basic structure and function are the same regardless their position in the body wall or the internal organs, there are important site-specific characteristics. We discuss common structure and function of lymphatics; and point to important functions for hyaluronan turn-over, salt balance, coagulation, extracellular matrix production, adipose tissue development and potential appetite regulation, and the influence of hypoxia on the regulation of these functions. Differences with respect to the embryonic origin and molecular equipment between somatic and splanchnic lymphatics are discussed with a side-view on the phylogeny of the LVS. The functions of the lymphatic vasculature are much broader than generally thought, and lymphatic research will have many interesting and surprising aspects to offer in the future.
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Affiliation(s)
- Jörg Wilting
- Department of Anatomy and Cell Biology, University Medical School Göttingen, Göttingen, Germany.
| | - Jürgen Becker
- Department of Anatomy and Cell Biology, University Medical School Göttingen, Göttingen, Germany
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12
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Li L, Shirkey MW, Zhang T, Piao W, Li X, Zhao J, Mei Z, Guo Y, Saxena V, Kensiski A, Gavzy SJ, Song Y, Ma B, Wu J, Xiong Y, Wu L, Fan X, Roussey H, Li M, Krupnick AS, Abdi R, Bromberg JS. Lymph node fibroblastic reticular cells preserve a tolerogenic niche in allograft transplantation through laminin α4. J Clin Invest 2022; 132:e156994. [PMID: 35775481 PMCID: PMC9246384 DOI: 10.1172/jci156994] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 05/10/2022] [Indexed: 12/13/2022] Open
Abstract
Lymph node (LN) fibroblastic reticular cells (FRCs) define LN niches and regulate lymphocyte homeostasis through producing diverse extracellular matrix (ECM) components. We examined the role of ECM laminin α4 (Lama4) using FRC-Lama4 conditional KO Pdgfrb-Cre-/- × Lama4fl/fl mice. Single-cell RNA-sequencing (scRNA-Seq) data showed the promoter gene Pdgfrb was exclusively expressed in FRCs. Depleting FRC-Lama4 reduced Tregs and dendritic cells, decreased high endothelial venules, impaired the conduit system, and downregulated T cell survival factors in LNs. FRC-Lama4 depletion impaired the homing of lymphocytes to LNs in homeostasis and after allografting. Alloantigen-specific T cells proliferated, were activated to greater degrees in LNs lacking FRC-Lama4, and were more prone to differentiate into effector phenotypes relative to the Treg phenotype. In murine cardiac transplantation, tolerogenic immunosuppression was not effective in FRC-Lama4 recipients, which produced more alloantibodies than WT. After lung transplantation, FRC-Lama4-KO mice had more severe graft rejection with fewer Tregs in their LNs. Overall, FRC-Lama4 critically contributes to a tolerogenic LN niche by supporting T cell migration, constraining T cell activation and proliferation, and promoting Treg differentiation. Hence, it serves as a therapeutic target for immunoengineering.
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Affiliation(s)
- Lushen Li
- Department of Surgery and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Marina W. Shirkey
- Department of Surgery and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | - Wenji Piao
- Department of Surgery and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Xiaofei Li
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jing Zhao
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | | | | - Vikas Saxena
- Department of Surgery and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Allison Kensiski
- Department of Surgery and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Samuel J. Gavzy
- Department of Surgery and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | - Bing Ma
- Institute for Genome Sciences
| | | | - Yanbao Xiong
- Department of Surgery and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Long Wu
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Xiaoxuan Fan
- Flow Cytometry Shared Service, Greenebaum Comprehensive Cancer Center. and
| | | | - Meng Li
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | - Reza Abdi
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jonathan S. Bromberg
- Department of Surgery and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
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13
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Liu SW, Sun F, Rong SJ, Wang T, Wang CY. Lymphotoxins Serve as a Novel Orchestrator in T1D Pathogenesis. Front Immunol 2022; 13:917577. [PMID: 35757751 PMCID: PMC9219589 DOI: 10.3389/fimmu.2022.917577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 04/29/2022] [Indexed: 11/18/2022] Open
Abstract
Type 1 diabetes (T1D) stems from pancreatic β cell destruction by islet reactive immune cells. Similar as other autoimmune disorders, there is no curative remedy for T1D thus far. Chronic insulitis is the hallmark of T1D, which creates a local inflammatory microenvironment that impairs β cell function and ultimately leads to β cell death. Immune regulation shows promise in T1D treatment by providing a time window for β cell recovery. However, due to the complex nature of T1D pathogenesis, the therapeutic effect of immune regulation is often short-lasting and unsatisfying in monotherapies. Lymphotoxins (LTs) were first identified in 1960s as the lymphocyte-producing cytokine that can kill other cell types. As a biological cousin of tumor necrosis factor alpha (TNFα), LTs play unique roles in T1D development. Herein in this review, we summarized the advancements of LTs in T1D pathogenesis. We particularly highlighted their effect on the formation of peri-islet tertiary lymphoid organs (TLOs), and discussed their synergistic effect with other cytokines on β cell toxicity and autoimmune progression. Given the complex and dynamic crosstalk between immune cells and β cells in T1D setting, blockade of lymphotoxin signaling applied to the existing therapies could be an efficient approach to delay or even reverse the established T1D.
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Affiliation(s)
- Shi-Wei Liu
- Department of Endocrinology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
| | - Fei Sun
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, National Health Commission (NHC) Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Shan-Jie Rong
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, National Health Commission (NHC) Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Ting Wang
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, National Health Commission (NHC) Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Cong-Yi Wang
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, National Health Commission (NHC) Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
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14
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Piao W, Li L, Saxena V, Iyyathurai J, Lakhan R, Zhang Y, Lape IT, Paluskievicz C, Hippen KL, Lee Y, Silverman E, Shirkey MW, Riella LV, Blazar BR, Bromberg JS. PD-L1 signaling selectively regulates T cell lymphatic transendothelial migration. Nat Commun 2022; 13:2176. [PMID: 35449134 PMCID: PMC9023578 DOI: 10.1038/s41467-022-29930-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 03/14/2022] [Indexed: 12/11/2022] Open
Abstract
Programmed death-1 (PD-1) and its ligand PD-L1 are checkpoint molecules which regulate immune responses. Little is known about their functions in T cell migration and there are contradictory data about their roles in regulatory T cell (Treg) function. Here we show activated Tregs and CD4 effector T cells (Teffs) use PD-1/PD-L1 and CD80/PD-L1, respectively, to regulate transendothelial migration across lymphatic endothelial cells (LECs). Antibody blockade of Treg PD-1, Teff CD80 (the alternative ligand for PD-L1), or LEC PD-L1 impairs Treg or Teff migration in vitro and in vivo. PD-1/PD-L1 signals through PI3K/Akt and ERK to regulate zipper junctional VE-cadherin, and through NFκB-p65 to up-regulate VCAM-1 expression on LECs. CD80/PD-L1 signaling up-regulates VCAM-1 through ERK and NFκB-p65. PD-1 and CD80 blockade reduces tumor egress of PD-1high fragile Tregs and Teffs into draining lymph nodes, respectively, and promotes tumor regression. These data provide roles for PD-L1 in cell migration and immune regulation.
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Affiliation(s)
- Wenji Piao
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
| | - Lushen Li
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Vikas Saxena
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Jegan Iyyathurai
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Ram Lakhan
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Yigang Zhang
- Division of Blood & Marrow Transplant & Cellular Therapy, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN, 55455, USA
| | - Isadora Tadeval Lape
- Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, Boston, MA, 02114, USA
| | - Christina Paluskievicz
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Keli L Hippen
- Division of Blood & Marrow Transplant & Cellular Therapy, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN, 55455, USA
| | - Young Lee
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Emma Silverman
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Marina W Shirkey
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Leonardo V Riella
- Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, Boston, MA, 02114, USA
| | - Bruce R Blazar
- Division of Blood & Marrow Transplant & Cellular Therapy, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN, 55455, USA
| | - Jonathan S Bromberg
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
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15
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Saxena V, Piao W, Li L, Paluskievicz C, Xiong Y, Simon T, Lakhan R, Brinkman CC, Walden S, Hippen KL, WillsonShirkey M, Lee YS, Wagner C, Blazar BR, Bromberg JS. Treg tissue stability depends on lymphotoxin beta-receptor- and adenosine-receptor-driven lymphatic endothelial cell responses. Cell Rep 2022; 39:110727. [PMID: 35443187 PMCID: PMC9093052 DOI: 10.1016/j.celrep.2022.110727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/23/2022] [Accepted: 03/30/2022] [Indexed: 02/03/2023] Open
Abstract
Regulatory T cell (Treg) lymphatic migration is required for resolving inflammation and prolonging allograft survival. Focusing on Treg interactions with lymphatic endothelial cells (LECs), we dissect mechanisms and functional consequences of Treg transendothelial migration (TEM). Using three genetic mouse models of pancreatic islet transplantation, we show that Treg lymphotoxin (LT) αβ and LEC LTβ receptor (LTβR) signaling are required for efficient Treg migration and suppressive function to prolong allograft survival. Inhibition of LT signaling increases Treg conversion to Foxp3loCD25lo exTregs. In a transwell-based model of TEM across polarized LECs, non-migrated Tregs become exTregs. Such conversion is regulated by LTβR nuclear factor κB (NF-κB) signaling in LECs, which increases interleukin-6 (IL-6) production and drives exTreg conversion. Migrating Tregs are ectonucleotidase CD39hi and resist exTreg conversion in an adenosine-receptor-2A-dependent fashion. Human Tregs migrating across human LECs behave similarly. These molecular interactions can be targeted for therapeutic manipulation of immunity and suppression.
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Affiliation(s)
- Vikas Saxena
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Wenji Piao
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Lushen Li
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Christina Paluskievicz
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Yanbao Xiong
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Thomas Simon
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Ram Lakhan
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - C Colin Brinkman
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Sarah Walden
- Division of Blood and Marrow Transplantation and Cellular Therapy, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Keli L Hippen
- Division of Blood and Marrow Transplantation and Cellular Therapy, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Marina WillsonShirkey
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Young S Lee
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Chelsea Wagner
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Bruce R Blazar
- Division of Blood and Marrow Transplantation and Cellular Therapy, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Jonathan S Bromberg
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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16
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Collado-Diaz V, Medina-Sanchez JD, Gkountidi AO, Halin C. Imaging leukocyte migration through afferent lymphatics. Immunol Rev 2021; 306:43-57. [PMID: 34708414 PMCID: PMC9298274 DOI: 10.1111/imr.13030] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 12/11/2022]
Abstract
Afferent lymphatics mediate the transport of antigen and leukocytes, especially of dendritic cells (DCs) and T cells, from peripheral tissues to draining lymph nodes (dLNs). As such they play important roles in the induction and regulation of adaptive immunity. Over the past 15 years, great advances in our understanding of leukocyte trafficking through afferent lymphatics have been made through time‐lapse imaging studies performed in tissue explants and in vivo, allowing to visualize this process with cellular resolution. Intravital imaging has revealed that intralymphatic leukocytes continue to actively migrate once they have entered into lymphatic capillaries, as a consequence of the low flow conditions present in this compartment. In fact, leukocytes spend considerable time migrating, patrolling and interacting with the lymphatic endothelium or with other intralymphatic leukocytes within lymphatic capillaries. Cells typically only start to detach once they arrive in downstream‐located collecting vessels, where vessel contractions contribute to enhanced lymph flow. In this review, we will introduce the biology of afferent lymphatic vessels and report on the presumed significance of DC and T cell migration via this route. We will specifically highlight how time‐lapse imaging has contributed to the current model of lymphatic trafficking and the emerging notion that ‐ besides transport – lymphatic capillaries exert additional roles in immune modulation.
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Affiliation(s)
| | | | | | - Cornelia Halin
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
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17
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Faßbender S, Sondenheimer K, Majora M, Schindler J, Opitz FV, Pollet M, Haarmann-Stemmann T, Krutmann J, Weighardt H. Keratinocytes Counteract UVB-Induced Immunosuppression in Mice Via HIF-1a Signaling. J Invest Dermatol 2021; 142:1183-1193. [PMID: 34571000 DOI: 10.1016/j.jid.2021.07.185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 07/14/2021] [Accepted: 07/23/2021] [Indexed: 01/20/2023]
Abstract
The transcription factor Hypoxia-Inducible Factor-1alpha (HIF-1a) regulates cellular metabolism under hypoxia but also immune responses and UVB-induced skin reactions. In keratinocytes, HIF-1a is an environmental sensor orchestrating the adaptation to environmental changes. Here, we investigated the role of HIF-1a in keratinocytes for skin reactions to acute and chronic UVB exposure in mice. The function of HIF-1a in keratinocytes under UVB exposure was analyzed in conditional keratinocyte-specific HIF-1a-KO (in short "cKO") mice. cKO mice were hypersensitive to acute high-dose UVB irradiation compared to wildtype (WT), displaying increased cell death and delayed barrier repair. After chronic low-dose UVB treatment, cKO mice also had stronger epidermal damage but reduced infiltration of dermal macrophages and T helper cells compared to WT mice. Irradiated cKO mice revealed accumulation of regulatory lymphocytes in dorsal skin-draining lymph nodes compared to WT and unirradiated mice. This was reflected by augmented IL-10 release of lymph node cells and a weaker contact hypersensitivity reaction to DNFB in UVB-exposed cKO mice compared to WT and unirradiated controls. In summary, we found that keratinocyte-specific HIF-1a expression is crucial for adaptation to UVB exposure and inhibits the development of UVB-induced immunosuppression in mice. Therefore, HIF-1a signaling in keratinocytes could ameliorate photoaging-related skin disorders.
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Affiliation(s)
- Sonja Faßbender
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Strasse 31, D-53115 Bonn, Germany; IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany.
| | - Kevin Sondenheimer
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Marc Majora
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Jennifer Schindler
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Friederike V Opitz
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Strasse 31, D-53115 Bonn, Germany; IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Marius Pollet
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Thomas Haarmann-Stemmann
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Jean Krutmann
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Heike Weighardt
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Strasse 31, D-53115 Bonn, Germany; IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
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18
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Akgol S, Kalkan BM, Yucel D, Kocabas F. SC1 limits tube formation, branching, migration, expansion and induce apoptosis of endothelial cells. Vascul Pharmacol 2021; 141:106903. [PMID: 34481979 DOI: 10.1016/j.vph.2021.106903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 07/02/2021] [Accepted: 08/27/2021] [Indexed: 11/30/2022]
Abstract
Endothelial cells (ECs) are essential in the growth and progression of the tumor cells by supplying nutrition and angiogenesis factors. Targeting ECs emerged as a major strategy to prevent the growth of tumors. Studies suggest that ERK1/2 signaling is important for endothelial cells, which could be specifically targeted by small molecule SC1. We aimed to study the effects of SC1 treatments on endothelial cell proliferation, angiogenesis, and death. To this end, we performed viability, apoptosis, cell cycle, gene expression, wound closure, tube formation, and western blot analysis in endothelial cells post SC1 treatments. Intriguingly, we found that SC1 has an antiangiogenic effect on endothelial cells, which limits the endothelial cell expansion, tube formation, branching, and migration. The proliferation is especially limited in dose dependent manner by SC1. In addition, we found that SC1 elevates the apoptosis of endothelial cells and associated pathways including BAK1, Stat1, Sox4, and Caspase1. We believe that these findings could contribute to the development of improved therapies based on the SC1 as an attractive candidate for anticancer clinical studies targeted to tumor angiogenesis.
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Affiliation(s)
- Sezer Akgol
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | | | - Dogacan Yucel
- Department of Medicine, University of Minnesota, USA
| | - Fatih Kocabas
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
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19
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Johansen KH, Golec DP, Thomsen JH, Schwartzberg PL, Okkenhaug K. PI3K in T Cell Adhesion and Trafficking. Front Immunol 2021; 12:708908. [PMID: 34421914 PMCID: PMC8377255 DOI: 10.3389/fimmu.2021.708908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/19/2021] [Indexed: 12/12/2022] Open
Abstract
PI3K signalling is required for activation, differentiation, and trafficking of T cells. PI3Kδ, the dominant PI3K isoform in T cells, has been extensively characterised using PI3Kδ mutant mouse models and PI3K inhibitors. Furthermore, characterisation of patients with Activated PI3K Delta Syndrome (APDS) and mouse models with hyperactive PI3Kδ have shed light on how increased PI3Kδ activity affects T cell functions. An important function of PI3Kδ is that it acts downstream of TCR stimulation to activate the major T cell integrin, LFA-1, which controls transendothelial migration of T cells as well as their interaction with antigen-presenting cells. PI3Kδ also suppresses the cell surface expression of CD62L and CCR7 which controls the migration of T cells across high endothelial venules in the lymph nodes and S1PR1 which controls lymph node egress. Therefore, PI3Kδ can control both entry and exit of T cells from lymph nodes as well as the recruitment to and retention of T cells within inflamed tissues. This review will focus on the regulation of adhesion receptors by PI3Kδ and how this contributes to T cell trafficking and localisation. These findings are relevant for our understanding of how PI3Kδ inhibitors may affect T cell redistribution and function.
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Affiliation(s)
- Kristoffer H Johansen
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom.,Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD, United States
| | - Dominic P Golec
- Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD, United States
| | - Julie H Thomsen
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | | | - Klaus Okkenhaug
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
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20
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Johnson LA, Jackson DG. Hyaluronan and Its Receptors: Key Mediators of Immune Cell Entry and Trafficking in the Lymphatic System. Cells 2021; 10:cells10082061. [PMID: 34440831 PMCID: PMC8393520 DOI: 10.3390/cells10082061] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/06/2021] [Accepted: 08/08/2021] [Indexed: 02/07/2023] Open
Abstract
Entry to the afferent lymphatics marks the first committed step for immune cell migration from tissues to draining lymph nodes both for the generation of immune responses and for timely resolution of tissue inflammation. This critical process occurs primarily at specialised discontinuous junctions in initial lymphatic capillaries, directed by chemokines released from lymphatic endothelium and orchestrated by adhesion between lymphatic receptors and their immune cell ligands. Prominent amongst the latter is the large glycosaminoglycan hyaluronan (HA) that can form a bulky glycocalyx on the surface of certain tissue-migrating leucocytes and whose engagement with its key lymphatic receptor LYVE-1 mediates docking and entry of dendritic cells to afferent lymphatics. Here we outline the latest insights into the molecular mechanisms by which the HA glycocalyx together with LYVE-1 and the related leucocyte receptor CD44 co-operate in immune cell entry, and how the process is facilitated by the unusual character of LYVE-1 • HA-binding interactions. In addition, we describe how pro-inflammatory breakdown products of HA may also contribute to lymphatic entry by transducing signals through LYVE-1 for lymphangiogenesis and increased junctional permeability. Lastly, we outline some future perspectives and highlight the LYVE-1 • HA axis as a potential target for immunotherapy.
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21
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Tkachev V, Kaminski J, Potter EL, Furlan SN, Yu A, Hunt DJ, McGuckin C, Zheng H, Colonna L, Gerdemann U, Carlson J, Hoffman M, Olvera J, English C, Baldessari A, Panoskaltsis-Mortari A, Watkins B, Qayed M, Suessmuth Y, Betz K, Bratrude B, Langston A, Horan JT, Ordovas-Montanes J, Shalek AK, Blazar BR, Roederer M, Kean LS. Spatiotemporal single-cell profiling reveals that invasive and tissue-resident memory donor CD8 + T cells drive gastrointestinal acute graft-versus-host disease. Sci Transl Med 2021; 13:13/576/eabc0227. [PMID: 33441422 DOI: 10.1126/scitranslmed.abc0227] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 12/11/2020] [Indexed: 12/11/2022]
Abstract
Organ infiltration by donor T cells is critical to the development of acute graft-versus-host disease (aGVHD) in recipients after allogeneic hematopoietic stem cell transplant (allo-HCT). However, deconvoluting the transcriptional programs of newly recruited donor T cells from those of tissue-resident T cells in aGVHD target organs remains a challenge. Here, we combined the serial intravascular staining technique with single-cell RNA sequencing to dissect the tightly connected processes by which donor T cells initially infiltrate tissues and then establish a pathogenic tissue residency program in a rhesus macaque allo-HCT model that develops aGVHD. Our results enabled creation of a spatiotemporal map of the transcriptional programs controlling donor CD8+ T cell infiltration into the primary aGVHD target organ, the gastrointestinal (GI) tract. We identified the large and small intestines as the only two sites demonstrating allo-specific, rather than lymphodepletion-driven, T cell infiltration. GI-infiltrating donor CD8+ T cells demonstrated a highly activated, cytotoxic phenotype while simultaneously developing a canonical tissue-resident memory T cell (TRM) transcriptional signature driven by interleukin-15 (IL-15)/IL-21 signaling. We found expression of a cluster of genes directly associated with tissue invasiveness, including those encoding adhesion molecules (ITGB2), specific chemokines (CCL3 and CCL4L1) and chemokine receptors (CD74), as well as multiple cytoskeletal proteins. This tissue invasion transcriptional signature was validated by its ability to discriminate the CD8+ T cell transcriptome of patients with GI aGVHD from those of GVHD-free patients. These results provide insights into the mechanisms controlling tissue occupancy of target organs by pathogenic donor CD8+ TRM cells during aGVHD in primate transplant recipients.
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Affiliation(s)
- Victor Tkachev
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA.
| | - James Kaminski
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA.,Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - E Lake Potter
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20858, USA
| | - Scott N Furlan
- Fred Hutchinson Cancer Research Center, Department of Pediatrics, University of Washington, Seattle, WA 98109, USA
| | - Alison Yu
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Daniel J Hunt
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Connor McGuckin
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Hengqi Zheng
- University of Washington, Seattle, WA 98195, USA
| | - Lucrezia Colonna
- Fred Hutchinson Cancer Research Center, Department of Pediatrics, University of Washington, Seattle, WA 98109, USA
| | - Ulrike Gerdemann
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | | | - Michelle Hoffman
- Fred Hutchinson Cancer Research Center, Department of Pediatrics, University of Washington, Seattle, WA 98109, USA
| | - Joe Olvera
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Chris English
- Washington National Primate Research Center, Seattle, WA 98195, USA
| | | | - Angela Panoskaltsis-Mortari
- Division of Blood and Marrow Transplantation, Department of Pediatrics, Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55454, USA
| | | | - Muna Qayed
- Emory University School of Medicine, Atlanta, GA 30322, USA
| | | | - Kayla Betz
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Brandi Bratrude
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | | | - John T Horan
- Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Jose Ordovas-Montanes
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.,Division of Gastroenterology, Boston Children's Hospital and Program in Immunology, Harvard Medical School, Boston, MA 02115, USA.,Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Alex K Shalek
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.,Institute for Medical Engineering and Science (IMES), Department of Chemistry, and Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02142, USA.,Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Bruce R Blazar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55454, USA
| | - Mario Roederer
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20858, USA
| | - Leslie S Kean
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Department of Pediatric Oncology, Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA.
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22
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Moreau JM, Gouirand V, Rosenblum MD. T-Cell Adhesion in Healthy and Inflamed Skin. JID INNOVATIONS 2021; 1:100014. [PMID: 35024681 PMCID: PMC8669513 DOI: 10.1016/j.xjidi.2021.100014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 04/06/2021] [Indexed: 12/24/2022] Open
Abstract
The diverse populations of tissue-resident and transitory T cells present in the skin share a common functional need to enter, traverse, and interact with their environment. These processes are largely dependent on the regulated expression of adhesion molecules, such as selectins and integrins, which mediate bidirectional interactions between immune cells and skin stroma. Dysregulation and engagement of adhesion pathways contribute to ectopic T-cell activity in tissues, leading to the initiation and/or exacerbation of chronic inflammation. In this paper, we review how the molecular interactions supported by adhesion pathways contribute to T-cell dynamics and function in the skin. A comprehensive understanding of the molecular mechanisms underpinning T-cell adhesion in inflammatory skin disorders will facilitate the development of novel tissue-specific therapeutic strategies.
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Key Words
- AD, atopic dermatitis
- BM, basement membrane
- DC, dendritic cell
- DETC, dendritic epidermal γδ T cell
- ECM, extracellular matrix
- HF, hair follicle
- JC, John Cunningham
- LAD, leukocyte adhesion deficiency
- PML, progressive multifocal leukoencephalopathy
- Th, T helper
- Treg, regulatory T cell
- Trm, tissue-resident memory
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Affiliation(s)
- Joshua M. Moreau
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Victoire Gouirand
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Michael D. Rosenblum
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
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23
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Honan AM, Chen Z. Stromal Cells Underlining the Paths From Autoimmunity, Inflammation to Cancer With Roles Beyond Structural and Nutritional Support. Front Cell Dev Biol 2021; 9:658984. [PMID: 34113615 PMCID: PMC8185233 DOI: 10.3389/fcell.2021.658984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 04/29/2021] [Indexed: 12/14/2022] Open
Abstract
Stromal cells provide structural support and nutrients in secondary lymphoid organs and non-lymphoid tissues. However, accumulating evidence suggests that a complex relationship exists between stromal cells and immune cells. Interactions between immune cells and stromal cells have been shown to influence the pathology of both autoimmunity and cancer. This review examines the heterogeneity of stromal cells within the lymph node and non-lymphoid tissues during both homeostatic and inflammatory conditions, in particular autoimmunity and cancer, with the goal of better understanding the complex and apparently paradoxical relationship between these two classes of diseases. The review surveys potential novel mechanisms involving the interactions between stromal cells and immune cells which may contribute to the development, pathology and underlying connection between autoimmunity and cancer, including potential pathways from autoimmune inflammation to either “hot” or “cold” tumors. These interactions may provide some insights to explain the rising incidence of both autoimmunity and cancer in young women in industrialized countries and have the potential to be exploited in the development of new interventions for preventions and treatments of both autoimmune diseases and cancer.
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Affiliation(s)
- Amanda M Honan
- Department of Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Zhibin Chen
- Department of Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, FL, United States.,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, United States
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24
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Structure and Immune Function of Afferent Lymphatics and Their Mechanistic Contribution to Dendritic Cell and T Cell Trafficking. Cells 2021; 10:cells10051269. [PMID: 34065513 PMCID: PMC8161367 DOI: 10.3390/cells10051269] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/18/2021] [Accepted: 05/18/2021] [Indexed: 12/11/2022] Open
Abstract
Afferent lymphatic vessels (LVs) mediate the transport of antigen and leukocytes to draining lymph nodes (dLNs), thereby serving as immunologic communication highways between peripheral tissues and LNs. The main cell types migrating via this route are antigen-presenting dendritic cells (DCs) and antigen-experienced T cells. While DC migration is important for maintenance of tolerance and for induction of protective immunity, T cell migration through afferent LVs contributes to immune surveillance. In recent years, great progress has been made in elucidating the mechanisms of lymphatic migration. Specifically, time-lapse imaging has revealed that, upon entry into capillaries, both DCs and T cells are not simply flushed away with the lymph flow, but actively crawl and patrol and even interact with each other in this compartment. Detachment and passive transport to the dLN only takes place once the cells have reached the downstream, contracting collecting vessel segments. In this review, we describe how the anatomy of the lymphatic network supports leukocyte trafficking and provide updated knowledge regarding the cellular and molecular mechanisms responsible for lymphatic migration of DCs and T cells. In addition, we discuss the relevance of DC and T cell migration through afferent LVs and its presumed implications on immunity.
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25
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Arasa J, Collado-Diaz V, Kritikos I, Medina-Sanchez JD, Friess MC, Sigmund EC, Schineis P, Hunter MC, Tacconi C, Paterson N, Nagasawa T, Kiefer F, Makinen T, Detmar M, Moser M, Lämmermann T, Halin C. Upregulation of VCAM-1 in lymphatic collectors supports dendritic cell entry and rapid migration to lymph nodes in inflammation. J Exp Med 2021; 218:212103. [PMID: 33988714 PMCID: PMC8129804 DOI: 10.1084/jem.20201413] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 02/22/2021] [Accepted: 04/14/2021] [Indexed: 01/03/2023] Open
Abstract
Dendritic cell (DC) migration to draining lymph nodes (dLNs) is a slow process that is believed to begin with DCs approaching and entering into afferent lymphatic capillaries. From capillaries, DCs slowly crawl into lymphatic collectors, where lymph flow induced by collector contraction supports DC detachment and thereafter rapid, passive transport to dLNs. Performing a transcriptomics analysis of dermal endothelial cells, we found that inflammation induces the degradation of the basement membrane (BM) surrounding lymphatic collectors and preferential up-regulation of the DC trafficking molecule VCAM-1 in collectors. In crawl-in experiments performed in ear skin explants, DCs entered collectors in a CCR7- and β1 integrin–dependent manner. In vivo, loss of β1-integrins in DCs or of VCAM-1 in lymphatic collectors had the greatest impact on DC migration to dLNs at early time points when migration kinetics favor the accumulation of rapidly migrating collector DCs rather than slower capillary DCs. Taken together, our findings identify collector entry as a critical mechanism enabling rapid DC migration to dLNs in inflammation.
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Affiliation(s)
- Jorge Arasa
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | | | - Ioannis Kritikos
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | | | | | | | - Philipp Schineis
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | | | - Carlotta Tacconi
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Neil Paterson
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany.,Faculty of Biology, University of Freiburg, Freiburg, Germany.,International Max Planck Research School for Immunobiology, Epigenetics and Metabolism, Freiburg, Germany
| | - Takashi Nagasawa
- Laboratory of Stem Cell Biology and Developmental Immunology, Graduate School of Frontier Biosciences and Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Friedemann Kiefer
- Max Planck Institute for Molecular Biomedicine, Münster, Germany.,European Institute for Molecular Imaging, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - Taija Makinen
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Michael Detmar
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Markus Moser
- Max Planck Institute of Biochemistry, Martinsried, Germany.,Institute of Experimental Hematology, Technical University Munich, Munich, Germany
| | - Tim Lämmermann
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Cornelia Halin
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
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26
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Steele MM, Lund AW. Afferent Lymphatic Transport and Peripheral Tissue Immunity. THE JOURNAL OF IMMUNOLOGY 2021; 206:264-272. [PMID: 33397740 DOI: 10.4049/jimmunol.2001060] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/11/2020] [Indexed: 12/30/2022]
Abstract
Lymphatic vessels provide an anatomical framework for immune surveillance and adaptive immune responses. Although appreciated as the route for Ag and dendritic cell transport, peripheral lymphatic vessels are often not considered active players in immune surveillance. Lymphatic vessels, however, integrate contextual cues that directly regulate transport, including changes in intrinsic pumping and capillary remodeling, and express a dynamic repertoire of inflammatory chemokines and adhesion molecules that facilitates leukocyte egress out of inflamed tissue. These mechanisms together contribute to the course of peripheral tissue immunity. In this review, we focus on context-dependent mechanisms that regulate fluid and cellular transport out of peripheral nonlymphoid tissues to provide a framework for understanding the effects of afferent lymphatic transport on immune surveillance, peripheral tissue inflammation, and adaptive immunity.
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Affiliation(s)
- Maria M Steele
- Ronald O. Perelman Department of Dermatology, New York University Grossman School of Medicine, New York, NY 10016
| | - Amanda W Lund
- Ronald O. Perelman Department of Dermatology, New York University Grossman School of Medicine, New York, NY 10016; .,Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016; and.,Laura and Isaac Perlmutter Cancer Center, New York University Grossman School of Medicine, New York, NY 10016
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27
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He M, He Q, Cai X, Chen Z, Lao S, Deng H, Liu X, Zheng Y, Liu X, Liu J, Xie Z, Yao M, Liang W, He J. Role of lymphatic endothelial cells in the tumor microenvironment-a narrative review of recent advances. Transl Lung Cancer Res 2021; 10:2252-2277. [PMID: 34164274 PMCID: PMC8182726 DOI: 10.21037/tlcr-21-40] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background As lymphatic vessel is a major route for solid tumor metastasis, they are considered an essential part of tumor drainage conduits. Apart from forming the walls of lymphatic vessels, lymphatic endothelial cells (LECs) have been found to play multiple other roles in the tumor microenvironment, calling for a more in-depth review. We hope that this review may help researchers gain a detailed understanding of this fast-developing field and shed some light upon future research. Methods To achieve an informative review of recent advance, we carefully searched the Medline database for English literature that are openly published from the January 1995 to December 2020 and covered the topic of LEC or lymphangiogenesis in tumor progression and therapies. Two different authors independently examined the literature abstracts to exclude possible unqualified ones, and 310 papers with full texts were finally retrieved. Results In this paper, we discussed the structural and molecular basis of tumor-associated LECs, together with their roles in tumor metastasis and drug therapy. We then focused on their impacts on tumor cells, tumor stroma, and anti-tumor immunity, and the molecular and cellular mechanisms involved. Special emphasis on lung cancer and possible therapeutic targets based on LECs were also discussed. Conclusions LECs can play a much more complex role than simply forming conduits for tumor cell dissemination. Therapies targeting tumor-associated lymphatics for lung cancer and other tumors are promising, but more research is needed to clarify the mechanisms involved.
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Affiliation(s)
- Miao He
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qihua He
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiuyu Cai
- Department of VIP Region, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Zisheng Chen
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Respiratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Shen Lao
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hongsheng Deng
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiwen Liu
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yongmei Zheng
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaoyan Liu
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jun Liu
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhanhong Xie
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Maojin Yao
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenhua Liang
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,The First People Hospital of Zhaoqing, Zhaoqing, China
| | - Jianxing He
- Department of Thoracic Surgery, China State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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28
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Piao W, Kasinath V, Saxena V, Lakhan R, Iyyathurai J, Bromberg JS. LTβR Signaling Controls Lymphatic Migration of Immune Cells. Cells 2021; 10:cells10040747. [PMID: 33805271 PMCID: PMC8065509 DOI: 10.3390/cells10040747] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/14/2022] Open
Abstract
The pleiotropic functions of lymphotoxin (LT)β receptor (LTβR) signaling are linked to the control of secondary lymphoid organ development and structural maintenance, inflammatory or autoimmune disorders, and carcinogenesis. Recently, LTβR signaling in endothelial cells has been revealed to regulate immune cell migration. Signaling through LTβR is comprised of both the canonical and non-canonical-nuclear factor κB (NF-κB) pathways, which induce chemokines, cytokines, and cell adhesion molecules. Here, we focus on the novel functions of LTβR signaling in lymphatic endothelial cells for migration of regulatory T cells (Tregs), and specific targeting of LTβR signaling for potential therapeutics in transplantation and cancer patient survival.
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Affiliation(s)
- Wenji Piao
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (W.P.); (R.L.)
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (V.S.); (J.I.)
| | - Vivek Kasinath
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
| | - Vikas Saxena
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (V.S.); (J.I.)
| | - Ram Lakhan
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (W.P.); (R.L.)
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (V.S.); (J.I.)
| | - Jegan Iyyathurai
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (V.S.); (J.I.)
| | - Jonathan S. Bromberg
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (W.P.); (R.L.)
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (V.S.); (J.I.)
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Correspondence: ; Tel.: +410-328-6430
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29
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Kawai K, Uchiyama M, Hester J, Issa F. IL-33 drives the production of mouse regulatory T cells with enhanced in vivo suppressive activity in skin transplantation. Am J Transplant 2021; 21:978-992. [PMID: 33314772 PMCID: PMC7613121 DOI: 10.1111/ajt.16266] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 07/20/2020] [Accepted: 08/08/2020] [Indexed: 01/25/2023]
Abstract
Regulatory T cells (Tregs) are crucial mediators of immune homeostasis with the ability to modulate allogeneic response and control transplant rejection. Although Treg-based cell therapies have shown immense promise, methods to optimize current strategies are critical for successful implementation within the clinic. IL-33 is a cytokine with pleiotropic properties and effects on Treg function and development. In this study, we explored the unique properties of Treg populations activated through the IL-33/ST2 pathway, aiming to exploit their tolerogenic properties for cell therapy. We show that treatment with exogenous IL-33 results in a generalized downregulation of genes critical to T cell biology together with an upregulation of Treg-associated genes. Tregs that develop in response to IL-33 upregulate critical Treg-associated markers, yet without developing enhanced in vitro suppressive capacity. Conversely, these Tregs display potent regulatory activity in vivo, promoting long-term skin allograft survival in a stringent transplantation model. Detailed transcriptomic and immunophenotypic analyses of IL-33-expanded Tregs reveal an enhancement in graft-homing chemokine receptors, which may be partly responsible for their superior in vivo activity that is not reflected in vitro. IL-33 treatment is therefore an attractive adjunctive strategy for patients receiving Treg cell therapeutics.
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Affiliation(s)
- Kento Kawai
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Masateru Uchiyama
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK,Department of Surgery, Teikyo University, Tokyo, Japan
| | - Joanna Hester
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Fadi Issa
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
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30
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Piao W, Xiong Y, Li L, Saxena V, Smith KD, Hippen KL, Paluskievicz C, Willsonshirkey M, Blazar BR, Abdi R, Bromberg JS. Regulatory T Cells Condition Lymphatic Endothelia for Enhanced Transendothelial Migration. Cell Rep 2020; 30:1052-1062.e5. [PMID: 31995749 DOI: 10.1016/j.celrep.2019.12.083] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 11/01/2019] [Accepted: 12/20/2019] [Indexed: 01/28/2023] Open
Abstract
Regulatory T cells (Tregs) express high levels of cell surface lymphotoxin alpha beta (LTα1β2) to activate the LT beta receptor (LTβR) on the lymphatic endothelial cells (LECs), modulating LEC adhesion molecules, intercellular junctions, and chemokines. We demonstrate a role for Tregs through this pathway to condition the permissiveness of lymphatic endothelia for transendothelial migration (TEM), thus gating leukocyte traffic. Human Tregs share the same property with murine Tregs. Activation of TLR2 on Tregs during inflammation specifically augments LTα1β2-LTβR signaling, which further enhances the permissiveness of LECs to facilitate TEM. The conditioning of endothelia may promote the resolution of inflammation by directing leukocytes out of tissues to lymphatic vessels and draining lymph nodes (dLNs). Thus, Tregs interact with lymphatic endothelia under homeostasis and inflammation and dictate endothelial permissiveness and gating mechanisms for subsequent leukocyte migration through endothelial barriers.
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Affiliation(s)
- Wenji Piao
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Yanbao Xiong
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Lushen Li
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Vikas Saxena
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Kile D Smith
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Keli L Hippen
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Christina Paluskievicz
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Marina Willsonshirkey
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Bruce R Blazar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Reza Abdi
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Jonathan S Bromberg
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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31
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Li X, Zhao J, Kasinath V, Uehara M, Jiang L, Banouni N, McGrath MM, Ichimura T, Fiorina P, Lemos DR, Shin SR, Ware CF, Bromberg JS, Abdi R. Lymph node fibroblastic reticular cells deposit fibrosis-associated collagen following organ transplantation. J Clin Invest 2020; 130:4182-4194. [PMID: 32597832 PMCID: PMC7410068 DOI: 10.1172/jci136618] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/22/2020] [Indexed: 02/05/2023] Open
Abstract
Although the immune response within draining lymph nodes (DLNs) has been studied for decades, how their stromal compartment contributes to this process remains to be fully explored. Here, we show that donor mast cells were prominent activators of collagen I deposition by fibroblastic reticular cells (FRCs) in DLNs shortly following transplantation. Serial analysis of the DLN indicated that the LN stroma did not return to its baseline microarchitecture following organ rejection and that the DLN contained significant fibrosis following repetitive organ transplants. Using several FRC conditional-knockout mice, we show that induction of senescence in the FRCs of the DLN resulted in massive production of collagen I and a proinflammatory milieu within the DLN. Stimulation of herpes virus entry mediator (HVEM) on FRCs by its ligand LIGHT contributed chiefly to the induction of senescence in FRCs and overproduction of collagen I. Systemic administration of ex vivo-expanded FRCs to mice decreased DLN fibrosis and strengthened the effect of anti-CD40L in prolonging heart allograft survival. These data demonstrate that the transformation of FRCs into proinflammatory myofibroblasts is critically important for the maintenance of a proinflammatory milieu within a fibrotic DLN.
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Affiliation(s)
- Xiaofei Li
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University School of Pharmaceutical Sciences, Wuhan, Hubei, China
| | - Jing Zhao
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Vivek Kasinath
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Mayuko Uehara
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Liwei Jiang
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Naima Banouni
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Martina M. McGrath
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University School of Pharmaceutical Sciences, Wuhan, Hubei, China
| | | | - Paolo Fiorina
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Dario R. Lemos
- Renal Division, Brigham and Women’s Hospital
- Harvard Stem Cell Institute, and
| | - Su Ryon Shin
- Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Carl F. Ware
- Infectious and Inflammatory Diseases Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, USA
| | - Jonathan S. Bromberg
- Department of Surgery and Microbiology and Immunobiology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Reza Abdi
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
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32
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Li L, Shirkey MW, Zhang T, Xiong Y, Piao W, Saxena V, Paluskievicz C, Lee Y, Toney N, Cerel BM, Li Q, Simon T, Smith KD, Hippen KL, Blazar BR, Abdi R, Bromberg JS. The lymph node stromal laminin α5 shapes alloimmunity. J Clin Invest 2020; 130:2602-2619. [PMID: 32017712 PMCID: PMC7190966 DOI: 10.1172/jci135099] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 01/29/2020] [Indexed: 12/15/2022] Open
Abstract
Lymph node stromal cells (LNSCs) regulate immunity through constructing lymphocyte niches. LNSC-produced laminin α5 (Lama5) regulates CD4+ T cells but the underlying mechanisms of its functions are poorly understood. Here we show that depleting Lama5 in LNSCs resulted in decreased Lama5 protein in the LN cortical ridge (CR) and around high endothelial venules (HEVs). Lama5 depletion affected LN structure with increased HEVs, upregulated chemokines, and cell adhesion molecules, and led to greater numbers of Tregs in the T cell zone. Mouse and human T cell transendothelial migration and T cell entry into LNs were suppressed by Lama5 through the receptors α6 integrin and α-dystroglycan. During immune responses and allograft transplantation, depleting Lama5 promoted antigen-specific CD4+ T cell entry into the CR through HEVs, suppressed T cell activation, and altered T cell differentiation to suppressive regulatory phenotypes. Enhanced allograft acceptance resulted from depleting Lama5 or blockade of T cell Lama5 receptors. Lama5 and Lama4/Lama5 ratios in allografts were associated with the rejection severity. Overall, our results demonstrated that stromal Lama5 regulated immune responses through altering LN structures and T cell behaviors. This study delineated a stromal Lama5-T cell receptor axis that can be targeted for immune tolerance modulation.
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Affiliation(s)
- Lushen Li
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Marina W. Shirkey
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Tianshu Zhang
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Yanbao Xiong
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Wenji Piao
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Vikas Saxena
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Christina Paluskievicz
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Young Lee
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | - Benjamin M. Cerel
- Department of Surgery, and
- Graduate Medical Sciences, Boston University School of Medicine, Boston, Massachusetts, USA
| | | | | | - Kyle D. Smith
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, Minnesota, USA
| | - Keli L. Hippen
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, Minnesota, USA
| | - Bruce R. Blazar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, Minnesota, USA
| | - Reza Abdi
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jonathan S. Bromberg
- Department of Surgery, and
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
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33
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Xiong Y, Piao W, Brinkman CC, Li L, Kulinski JM, Olivera A, Cartier A, Hla T, Hippen KL, Blazar BR, Schwab SR, Bromberg JS. CD4 T cell sphingosine 1-phosphate receptor (S1PR)1 and S1PR4 and endothelial S1PR2 regulate afferent lymphatic migration. Sci Immunol 2020; 4:4/33/eaav1263. [PMID: 30877143 DOI: 10.1126/sciimmunol.aav1263] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 01/29/2019] [Indexed: 12/12/2022]
Abstract
Sphingosine 1-phosphate (S1P) and S1P receptors (S1PRs) regulate migration of lymphocytes out of thymus to blood and lymph nodes (LNs) to efferent lymph, whereas their role in other tissue sites is not known. Here, we investigated the question of how these molecules regulate leukocyte migration from tissues through afferent lymphatics to draining LNs (dLNs). S1P, but not other chemokines, selectively enhanced human and murine CD4 T cell migration across lymphatic endothelial cells (LECs). T cell S1PR1 and S1PR4, and LEC S1PR2, were required for migration across LECs and into lymphatic vessels and dLNs. S1PR1 and S1PR4 differentially regulated T cell motility and vascular cell adhesion molecule-1 (VCAM-1) binding. S1PR2 regulated LEC layer structure, permeability, and expression of the junction molecules VE-cadherin, occludin, and zonulin-1 through the ERK pathway. S1PR2 facilitated T cell transcellular migration through VCAM-1 expression and recruitment of T cells to LEC migration sites. These results demonstrated distinct roles for S1PRs in comodulating T cell and LEC functions in migration and suggest previously unknown levels of regulation of leukocytes and endothelial cells during homeostasis and immunity.
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Affiliation(s)
- Yanbao Xiong
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA.,Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Wenji Piao
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA.,Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - C Colin Brinkman
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Lushen Li
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA.,Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Joseph M Kulinski
- Mast Cell Biology Section, Laboratory of Allergic Diseases, NIAID, NIH, Bethesda, MD 20892, USA
| | - Ana Olivera
- Mast Cell Biology Section, Laboratory of Allergic Diseases, NIAID, NIH, Bethesda, MD 20892, USA
| | - Andreane Cartier
- Vascular Biology Program, Boston Children's Hospital, Boston, MA 20115, USA.,Department of Surgery, Harvard Medical School, Boston, MA 20115, USA
| | - Timothy Hla
- Vascular Biology Program, Boston Children's Hospital, Boston, MA 20115, USA.,Department of Surgery, Harvard Medical School, Boston, MA 20115, USA
| | - Keli L Hippen
- University of Minnesota Cancer Center and the Department of Pediatrics, Division of Blood and Marrow Transplantation, University of Minnesota, Minneapolis, MN 55455, USA
| | - Bruce R Blazar
- University of Minnesota Cancer Center and the Department of Pediatrics, Division of Blood and Marrow Transplantation, University of Minnesota, Minneapolis, MN 55455, USA
| | - Susan R Schwab
- Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Jonathan S Bromberg
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA. .,Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA.,Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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34
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Suzuki S, Ishii M, Asakura T, Namkoong H, Okamori S, Yagi K, Kamata H, Kusumoto T, Kagawa S, Hegab AE, Yoda M, Horiuchi K, Hasegawa N, Betsuyaku T. ADAM17 protects against elastase-induced emphysema by suppressing CD62L + leukocyte infiltration in mice. Am J Physiol Lung Cell Mol Physiol 2020; 318:L1172-L1182. [PMID: 32130031 DOI: 10.1152/ajplung.00214.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Pulmonary emphysema is a major manifestation of chronic obstructive pulmonary disease and is associated with chronic pulmonary inflammation caused by cigarette smoking, with contributions from immune cells such as neutrophils, macrophages, and lymphocytes. Although matrix metalloproteinases are well known to contribute to emphysema progression, the role of a disintegrin and metalloproteinase (ADAM) family proteins, other major metalloproteinases, in disease pathogenesis is largely unknown. ADAM17 is a major sheddase that cleaves various cell surface proteins, including CD62L, an adhesion molecule that plays a critical role in promoting the migration of immune cells to the site of inflammation. In the present study, we aimed to investigate the potential role of ADAM17 and CD62L in the development of elastase-induced emphysema. Control and Adam17flox/flox/Mx1-Cre (Adam17ΔMx1) mice (8-10 wk old) were intratracheally injected with 5 units of porcine pancreas elastase and monitored for 35 days after injection. Lung alveolar destruction was evaluated by analyzing the mean linear intercepts of lung tissue specimens and by histopathological examination. Mean linear intercepts data indicated that the degree of elastase-induced emphysema was significantly more severe in Adam17ΔMx1 mice. Furthermore, flow cytometry showed that CD62L+ neutrophil, CD62L+ macrophage, and CD62L+ B lymphocyte numbers were significantly increased in Adam17ΔMx1 mice. Moreover, the pharmacological depletion of CD62L+ cells with a CD62L-neutralizing antibody ameliorated the extent of emphysema in Adam17ΔMx1 mice. Collectively, these results suggest that ADAM17 possibly suppresses the progression of emphysema by proteolytically processing CD62L in immune cells and that ADAM17 and CD62L could be novel therapeutic targets for treating pulmonary emphysema.
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Affiliation(s)
- Shoji Suzuki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.,Japan Society of Promotion of Science, Tokyo, Japan
| | - Makoto Ishii
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takanori Asakura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.,Japan Society of Promotion of Science, Tokyo, Japan
| | - Ho Namkoong
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Okamori
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.,Japan Society of Promotion of Science, Tokyo, Japan
| | - Kazuma Yagi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Tatsuya Kusumoto
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shizuko Kagawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ahmed E Hegab
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Masaki Yoda
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Laboratory of Cell and Tissue Biology, Keio University School of Medicine, Tokyo, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Orthopedic Surgery, National Defense Medical College, Saitama, Japan
| | - Naoki Hasegawa
- Center for Infectious Diseases and Infection Control, Keio University School of Medicine, Tokyo, Japan
| | - Tomoko Betsuyaku
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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35
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Irekeola AA, E. A. R. ENS, Mat Lazim N, Mohamud R, Yean CY, Shueb RH. Technical Considerations in Ex Vivo Human Regulatory T Cell Migration and Suppression Assays. Cells 2020; 9:cells9020487. [PMID: 32093265 PMCID: PMC7072784 DOI: 10.3390/cells9020487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/17/2020] [Accepted: 02/19/2020] [Indexed: 12/16/2022] Open
Abstract
Regulatory T cells (Tregs) are renowned for maintaining homeostasis and self-tolerance through their ability to suppress immune responses. For over two decades, Tregs have been the subject of intensive research. The immunosuppressive and migratory potentials of Tregs have been exploited, especially in the areas of cancer, autoimmunity and vaccine development, and many assay protocols have since been developed. However, variations in assay conditions in different studies, as well as covert experimental factors, pose a great challenge to the reproducibility of results. Here, we focus on human Tregs derived from clinical samples and highlighted caveats that should be heeded when conducting Tregs suppression and migration assays. We particularly delineated how factors such as sample processing, choice of reagents and equipment, optimization and other experimental conditions could introduce bias into the assay, and we subsequently proffer recommendations to enhance reliability and reproducibility of results. It is hoped that prioritizing these factors will reduce the tendencies of generating false and misleading results, and thus, help improve our understanding and interpretation of Tregs functional studies.
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Affiliation(s)
- Ahmad Adebayo Irekeola
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian 16150, Kelantan, Malaysia; (A.A.I.); (E.N.S.E.A.R.); (C.Y.Y.)
- Microbiology Unit, Department of Biological Sciences, College of Natural and Applied Sciences, Summit University Offa, Offa PMB 4412, Kwara State, Nigeria
| | - Engku Nur Syafirah E. A. R.
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian 16150, Kelantan, Malaysia; (A.A.I.); (E.N.S.E.A.R.); (C.Y.Y.)
| | - Norhafiza Mat Lazim
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian 16150, Kelantan, Malaysia;
| | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian 16150, Kelantan, Malaysia;
| | - Chan Yean Yean
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian 16150, Kelantan, Malaysia; (A.A.I.); (E.N.S.E.A.R.); (C.Y.Y.)
| | - Rafidah Hanim Shueb
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian 16150, Kelantan, Malaysia; (A.A.I.); (E.N.S.E.A.R.); (C.Y.Y.)
- Correspondence:
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36
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Saxena V, Li L, Paluskievicz C, Kasinath V, Bean A, Abdi R, Jewell CM, Bromberg JS. Role of lymph node stroma and microenvironment in T cell tolerance. Immunol Rev 2019; 292:9-23. [PMID: 31538349 PMCID: PMC6935411 DOI: 10.1111/imr.12799] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/22/2019] [Indexed: 12/12/2022]
Abstract
Lymph nodes (LNs) are at the cross roads of immunity and tolerance. These tissues are compartmentalized into specialized niche areas by lymph node stromal cells (LN SCs). LN SCs shape the LN microenvironment and guide immunological cells into different zones through establishment of a CCL19 and CCL21 gradient. Following local immunological cues, LN SCs modulate activity to support immune cell priming, activation, and fate. This review will present our current understanding of LN SC subsets roles in regulating T cell tolerance. Three major types of LN SC subsets, namely fibroblastic reticular cells, lymphatic endothelial cells, and blood endothelial cells, are discussed. These subsets serve as scaffolds to support and regulate T cell homeostasis. They contribute to tolerance by presenting peripheral tissue antigens to both CD4 and CD8 T cells. The role of LN SCs in regulating T cell migration and tolerance induction is discussed. Looking forward, recent advances in bioengineered materials and approaches to leverage LN SCs to induce T cell tolerance are highlighted, as are current clinical practices that allow for manipulation of the LN microenvironment to induce tolerance. Increased understanding of LN architecture, how different LN SCs integrate immunological cues and shape immune responses, and approaches to induce T cell tolerance will help further combat autoimmune diseases and graft rejection.
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Affiliation(s)
- Vikas Saxena
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Lushen Li
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Christina Paluskievicz
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Vivek Kasinath
- Transplantation Research Center, Division of Renal Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Asher Bean
- Transplantation Research Center, Division of Renal Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Reza Abdi
- Transplantation Research Center, Division of Renal Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Christopher M. Jewell
- Fischell Department of Bioengineering, Robert E. Fischell Institute for Biomedical Devices University of Maryland, College Park, MD 20742, USA
- United States Department of Veterans Affairs, VA Maryland Health Care System, Baltimore, MD 21201, USA
| | - Jonathan S. Bromberg
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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37
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Jackson DG. Leucocyte Trafficking via the Lymphatic Vasculature- Mechanisms and Consequences. Front Immunol 2019; 10:471. [PMID: 30923528 PMCID: PMC6426755 DOI: 10.3389/fimmu.2019.00471] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 02/21/2019] [Indexed: 01/15/2023] Open
Abstract
The lymphatics fulfill a vital physiological function as the conduits through which leucocytes traffic between the tissues and draining lymph nodes for the initiation and modulation of immune responses. However, until recently many of the molecular mechanisms controlling such migration have been unclear. As a result of careful research, it is now apparent that the process is regulated at multiple stages from initial leucocyte entry and intraluminal crawling in peripheral tissue lymphatics, through to leucocyte exit in draining lymph nodes where the migrating cells either participate in immune responses or return to the circulation via efferent lymph. Furthermore, it is increasingly evident that most if not all leucocyte populations migrate in lymph and that such migration is not only important for immune modulation, but also for the timely repair and resolution of tissue inflammation. In this article, I review the latest research findings in these areas, arising from new insights into the distinctive ultrastructure of lymphatic capillaries and lymph node sinuses. Accordingly, I highlight the emerging importance of the leucocyte glycocalyx and its novel interactions with the endothelial receptor LYVE-1, the intricacies of endothelial chemokine secretion and sequestration that direct leucocyte trafficking and the significance of the process for normal immune function and pathology.
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Affiliation(s)
- David G Jackson
- MRC Human Immunology Unit, Radcliffe Department of Medicine, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
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38
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Abstract
PURPOSE OF REVIEW To evaluate role of the lymph node in immune regulation and tolerance in transplantation and recent advances in the delivery of antigen and immune modulatory signals to the lymph node. RECENT FINDINGS Lymph nodes are a primary site of immune cell priming, activation, and modulation, and changes within the lymph node microenvironment have the potential to induce specific regulation, suppression, and potentially tolerance. Antigen enters the lymph node either from tissues via lymphatics, from blood via high endothelial venules, or directly via injection. Here we review different techniques and materials to deliver antigen to the lymph node including microparticles or nanoparticles, ex-vivo antigen presenting cell manipulation, and use of receptor conjugation for specific intralymph node targeting locations. SUMMARY The promising results point to powerful techniques to harness the lymph node microenvironment and direct systemic immune regulation. The materials, techniques, and approaches suggest that translational and clinical trials in nonhuman primate and patients may soon be possible.
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39
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Cheng HY, Tay SKL, Wen CJ, Lin CF, Wang AYL, Shih LY, Liu SC, Kobayashi E, Lin CH, Wei FC. Bioimaging of alloantigen-stimulated regulatory T cells in rat vascularized composite allotransplantation. PLoS One 2018; 13:e0203624. [PMID: 30192879 PMCID: PMC6128578 DOI: 10.1371/journal.pone.0203624] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 08/23/2018] [Indexed: 11/18/2022] Open
Abstract
Background Tipping the balance toward regulatory T cells (Tregs) through adoptive cell therapy has shown promise to induce transplantation tolerance. Although such strategy has been explored in many mice organ transplantation studies, less knowledge was available in rat systems. Furthermore, the behaviors of the transferred cells have not been well studied in real-time fashion. Methods Tregs from naïve LEW rats were purified in two steps with the autoMACS system. Immunosuppression potential of these cells was examined with mixed lymphocyte reaction. Following stimulation by the alloantigen in vitro, the purified Tregs were infused into the recipients of vascularized composite allotransplantation (VCA). Secondary allogeneic skin grafting challenge was performed on the recipients with long-term survived VCA. Live optical imaging was performed to track luciferase-expressing Tregs following infusion to the VCA recipients. Expression of relevant molecules was studied by flow cytometry or quantitative RT-PCR. Results Rat Tregs were enriched following two-step cell sorting and showed immunosuppressive capacity. Upon infusion into the VCA recipients that have been treated with antilymphocyte serum and short-term Cyclosporin A, the antigen-stimulated Tregs significantly prolonged VCA survival and induced donor-specific tolerance. Tracking of the infused bioluminescent Tregs showed their specific homing to lymph nodes, and then to the VCAs. Following secondary skin grafting, Tregs specifically gathered at the donor-derived skin that was not rejected by the recipient. The in vivo migratory pattern coincided with the altered expression of cell surface molecules of CD62L, CD103, CD134, and CD278, following donor-antigen stimulation. Elevated expression of CCR4 and CCL22 in allograft may also participate in recruiting Tregs for maintenance of VCA survival and promoting donor-specific tolerance. Conclusion Sorted Tregs induced donor-specific tolerance to VCA in rats. Live cell tracking demonstrated that activated CD4+CD25+FoxP3+ Tregs targeted primarily to the lymph nodes and VCA. The Tregs migrated to the secondary grafted donor skin and contributed to the maintenance of donor-specific tolerance. These behaviors were associated with phenotypic changes induced by donor antigen stimulation. Increased expression of CCR4 and CCL22 in VCA skin may also be relevant.
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Affiliation(s)
- Hui-Yun Cheng
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
- * E-mail:
| | - Sheri K. L. Tay
- Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
- Canniesburn Plastic Surgery Unit, Glasgow Royal Infirmary, Glasgow, United Kingdom
| | - Chih-Jen Wen
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
| | - Chih-Fan Lin
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
| | - Aline Yen-Ling Wang
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
| | - Ling-Yi Shih
- Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
| | - Shiao-Chin Liu
- Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
| | - Eiji Kobayashi
- Department of Organ Fabrication, Keio University School of Medicine, Tokyo, Japan
| | - Cheng-Hung Lin
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
- Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
| | - Fu-Chan Wei
- Center for Vascularized Composite Allotransplantation, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
- Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital, Gueishan, Taoyuan, Taiwan
- School of Medicine, Chang Gung University, Gueishan, Taoyuan, Taiwan
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40
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Schineis P, Runge P, Halin C. Cellular traffic through afferent lymphatic vessels. Vascul Pharmacol 2018; 112:31-41. [PMID: 30092362 DOI: 10.1016/j.vph.2018.08.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/26/2018] [Accepted: 08/01/2018] [Indexed: 12/15/2022]
Abstract
The lymphatic system has long been known to serve as a highway for migrating leukocytes from peripheral tissue to draining lymph nodes (dLNs) and back to circulation, thereby contributing to the induction of adaptive immunity and immunesurveillance. Lymphatic vessels (LVs) present in peripheral tissues upstream of a first dLN are generally referred to as afferent LVs. In contrast to migration through blood vessels (BVs), the detailed molecular and cellular requirements of cellular traffic through afferent LVs have only recently started to be unraveled. Progress in our ability to track the migration of lymph-borne cell populations, in combination with cutting-edge imaging technologies, nowadays allows the investigation and visualization of lymphatic migration of endogenous leukocytes, both at the population and at the single-cell level. These studies have revealed that leukocyte trafficking through afferent LVs generally follows a step-wise migration pattern, relying on the active interplay of numerous molecules. In this review, we will summarize and discuss current knowledge of cellular traffic through afferent LVs. We will first outline how the structure of the afferent LV network supports leukocyte migration and highlight important molecules involved in the migration of dendritic cells (DCs), T cells and neutrophils, i.e. the most prominent cell types trafficking through afferent LVs. Additionally, we will describe how tumor cells hijack the lymphatic system for their dissemination to draining LNs. Finally, we will summarize and discuss our current understanding of the functional significance as well as the therapeutic implications of cell traffic through afferent LVs.
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Affiliation(s)
| | - Peter Runge
- Institute of Pharmaceutical Sciences, ETH Zurich, Switzerland
| | - Cornelia Halin
- Institute of Pharmaceutical Sciences, ETH Zurich, Switzerland.
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41
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Piao W, Xiong Y, Famulski K, Brinkman CC, Li L, Toney N, Wagner C, Saxena V, Simon T, Bromberg JS. Regulation of T cell afferent lymphatic migration by targeting LTβR-mediated non-classical NFκB signaling. Nat Commun 2018; 9:3020. [PMID: 30069025 PMCID: PMC6070541 DOI: 10.1038/s41467-018-05412-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 06/02/2018] [Indexed: 12/23/2022] Open
Abstract
Lymphotoxin-beta receptor (LTβR) signaling in lymphatic endothelial cells (LEC) regulates leukocyte afferent lymphatic transendothelial migration (TEM). The function of individual signaling pathways for different leukocyte subsets is currently unknown. Here, we show that LTβR signals predominantly via the constitutive and ligand-driven non-classical NIK pathway. Targeting LTβR-NIK by an LTβR-derived decoy peptide (nciLT) suppresses the production of chemokines CCL21 and CXCL12, and enhances the expression of classical NFκB-driven VCAM-1 and integrin β4 to retain T cells on LEC and precludes T cell and dendritic cell TEM. nciLT inhibits contact hypersensitivity (CHS) at both the sensitization and elicitation stages, likely by inhibiting leukocyte migration. By contrast, targeting LTβR-classical NFκB signaling during the elicitation and resolution stages attenuates CHS, possibly by promoting leukocyte egress. These findings demonstrate the importance of LTβR signaling in leukocyte migration and LEC and lymphatic vessel function, and show that antagonist peptides may serve as lead compounds for therapeutic applications.
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Affiliation(s)
- Wenji Piao
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Yanbao Xiong
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Konrad Famulski
- Department of Laboratory Medicine and Pathology, University of Alberta, 250 Heritage Medical Research Centre, Edmonton, AB, T6G 2S2, Canada
| | - C Colin Brinkman
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Lushen Li
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Nicholas Toney
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Chelsea Wagner
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Vikas Saxena
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Thomas Simon
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Jonathan S Bromberg
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
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Identification of an immune gene expression signature associated with favorable clinical features in Treg-enriched patient tumor samples. NPJ Genom Med 2018; 3:14. [PMID: 29928512 PMCID: PMC5998068 DOI: 10.1038/s41525-018-0054-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 05/01/2018] [Accepted: 05/10/2018] [Indexed: 12/20/2022] Open
Abstract
Immune heterogeneity within the tumor microenvironment undoubtedly adds several layers of complexity to our understanding of drug sensitivity and patient prognosis across various cancer types. Within the tumor microenvironment, immunogenicity is a favorable clinical feature in part driven by the antitumor activity of CD8+ T cells. However, tumors often inhibit this antitumor activity by exploiting the suppressive function of regulatory T cells (Tregs), thus suppressing the adaptive immune response. Despite the seemingly intuitive immunosuppressive biology of Tregs, prognostic studies have produced contradictory results regarding the relationship between Treg enrichment and survival. We therefore analyzed RNA-seq data of Treg-enriched tumor samples to derive a pan-cancer gene signature able to help reconcile the inconsistent results of Treg studies, by better understanding the variable clinical association of Tregs across alternative tumor contexts. We show that increased expression of a 32-gene signature in Treg-enriched tumor samples (n = 135) is able to distinguish a cohort of patients associated with chemosensitivity and overall survival. This cohort is also enriched for CD8+ T cell abundance, as well as the antitumor M1 macrophage subtype. With a subsequent validation in a larger TCGA pool of Treg-enriched patients (n = 626), our results reveal a gene signature able to produce unsupervised clusters of Treg-enriched patients, with one cluster of patients uniquely representative of an immunogenic tumor microenvironment. Ultimately, these results support the proposed gene signature as a putative biomarker to identify certain Treg-enriched patients with immunogenic tumors that are more likely to be associated with features of favorable clinical outcome. A new genetic test could help predict responses to therapy and survival outcomes among cancer patients with tumors that are infiltrated with large numbers of regulatory T cells (Tregs). Kevin B. Givechian of NantOmics in Los Angeles, California, USA, and colleagues measured gene activity levels in tumor samples taken from 135 patients with Treg-enriched cancers of all kinds. They singled out genes with particularly variable expression levels to create a 32-gene signature that revealed two distinct clusters of patients: those who responded to their prescribed drugs and lived longer, and those who were treatment-resistant and died sooner. The researchers also validated the gene panel in a larger, independent cohort of 626 tumor samples, showing that it could identify patients with immunogenic tumors who are more likely have favorable clinical outcomes.
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Permanyer M, Bošnjak B, Förster R. Dendritic cells, T cells and lymphatics: dialogues in migration and beyond. Curr Opin Immunol 2018; 53:173-179. [PMID: 29857205 DOI: 10.1016/j.coi.2018.05.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/08/2018] [Accepted: 05/08/2018] [Indexed: 01/01/2023]
Abstract
Immune cells continuously recirculate through lymph vessels en route from peripheral tissues to the blood. Leuyte trafficking into and within lymph vessels is mediated by an interply with lymphatic endothelial cells (LECs). However, lymphatic vessels are much more than mere conduits for fluid and immune cell transport. Data accumulating during past several years indicate that LECs support T cell survival, induce tolerance to self-antigens, inhibit exaggerated T cell proliferation during immune response and maintain T cell memory. Reciprocally, leukocytes impact LEC biology: lymphatic vessel permeability depends on DCs while lymphocytes regulate LEC proliferation during inflammation. Altogether, these novel results provide important insights on intimate connections between LECs and leukocytes that contribute to the understanding of immune responses.
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Affiliation(s)
- Marc Permanyer
- Institute of Immunology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Berislav Bošnjak
- Institute of Immunology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Reinhold Förster
- Institute of Immunology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
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Kawai K, Uchiyama M, Hester J, Wood K, Issa F. Regulatory T cells for tolerance. Hum Immunol 2018; 79:294-303. [DOI: 10.1016/j.humimm.2017.12.013] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 12/16/2017] [Accepted: 12/26/2017] [Indexed: 12/29/2022]
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45
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Petrova TV, Koh GY. Organ-specific lymphatic vasculature: From development to pathophysiology. J Exp Med 2017; 215:35-49. [PMID: 29242199 PMCID: PMC5748863 DOI: 10.1084/jem.20171868] [Citation(s) in RCA: 186] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 11/27/2017] [Accepted: 11/28/2017] [Indexed: 12/11/2022] Open
Abstract
Recent discoveries of novel functions and diverse origins of lymphatic vessels have drastically changed our view of lymphatic vasculature. Traditionally regarded as passive conduits for fluid and immune cells, lymphatic vessels now emerge as active, tissue-specific players in major physiological and pathophysiological processes. Lymphatic vessels show remarkable plasticity and heterogeneity, reflecting their functional specialization to control the tissue microenvironment. Moreover, alternative developmental origins of lymphatic endothelial cells in some organs may contribute to the diversity of their functions in adult tissues. This review aims to summarize the most recent findings of organotypic differentiation of lymphatic endothelial cells in terms of their distinct (patho)physiological functions in skin, lymph nodes, small intestine, brain, and eye. We discuss recent advances in our understanding of the heterogeneity of lymphatic vessels with respect to the organ-specific functional and molecular specialization of lymphatic endothelium, such as the hybrid blood-lymphatic identity of Schlemm's canal, functions of intestinal lymphatics in dietary fat uptake, and discovery of meningeal lymphatic vasculature and perivascular brain lymphatic endothelial cells.
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Affiliation(s)
- Tatiana V Petrova
- Department of Fundamental Oncology, Ludwig Institute for Cancer Research, University of Lausanne, Epalinges, Switzerland .,Division of Experimental Pathology, Vaud University Hospital Center, University of Lausanne, Lausanne, Switzerland
| | - Gou Young Koh
- Center for Vascular Research, Institute for Basic Science, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea .,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
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46
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Harnessing Advances in T Regulatory Cell Biology for Cellular Therapy in Transplantation. Transplantation 2017; 101:2277-2287. [PMID: 28376037 DOI: 10.1097/tp.0000000000001757] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cellular therapy with CD4FOXP3 T regulatory (Treg) cells is a promising strategy to induce tolerance after solid-organ transplantation or prevent graft-versus-host disease after transfer of hematopoietic stem cells. Treg cells currently used in clinical trials are either polyclonal, donor- or antigen-specific. Aside from variations in isolation and expansion protocols, however, most therapeutic Treg cell-based products are much alike. Ongoing basic science work has provided considerable new insight into multiple facets of Treg cell biology, including their stability, homing, and functional specialization; integrating these basic science discoveries with clinical efforts will support the development of next-generation therapeutic Treg cells with enhanced efficacy. In this review, we summarize recent advances in knowledge of how Treg cells home to lymphoid and peripheral tissues, and control antibody production and tissue repair. We also discuss newly appreciated pathways that modulate context-specific Treg cell function and stability. Strategies to improve and tailor Treg cells for cell therapy to induce transplantation tolerance are highlighted.
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47
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Al-Soudi A, Kaaij MH, Tas SW. Endothelial cells: From innocent bystanders to active participants in immune responses. Autoimmun Rev 2017; 16:951-962. [PMID: 28698091 DOI: 10.1016/j.autrev.2017.07.008] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 06/05/2017] [Indexed: 02/07/2023]
Abstract
The endothelium is crucially important for the delivery of oxygen and nutrients throughout the body under homeostatic conditions. However, it also contributes to pathology, including the initiation and perpetuation of inflammation. Understanding the function of endothelial cells (ECs) in inflammatory diseases and molecular mechanisms involved may lead to novel approaches to dampen inflammation and restore homeostasis. In this article, we discuss the various functions of ECs in inflammation with a focus on pathological angiogenesis, attraction of immune cells, antigen presentation, immunoregulatory properties and endothelial-to-mesenchymal transition (EndMT). We also review the current literature on approaches to target these processes in ECs to modulate immune responses and advance anti-inflammatory therapies.
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Affiliation(s)
- A Al-Soudi
- Amsterdam Rheumatology and Immunology Center, Department of Clinical Immunology & Rheumatology and Laboratory for Experimental Immunology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
| | - M H Kaaij
- Amsterdam Rheumatology and Immunology Center, Department of Clinical Immunology & Rheumatology and Laboratory for Experimental Immunology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
| | - S W Tas
- Amsterdam Rheumatology and Immunology Center, Department of Clinical Immunology & Rheumatology and Laboratory for Experimental Immunology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands.
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48
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Maisel K, Sasso MS, Potin L, Swartz MA. Exploiting lymphatic vessels for immunomodulation: Rationale, opportunities, and challenges. Adv Drug Deliv Rev 2017; 114:43-59. [PMID: 28694027 PMCID: PMC6026542 DOI: 10.1016/j.addr.2017.07.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/29/2017] [Accepted: 07/06/2017] [Indexed: 12/12/2022]
Abstract
Lymphatic vessels are the primary route of communication from peripheral tissues to the immune system; as such, they represent an important component of local immunity. In addition to their transport functions, new immunomodulatory roles for lymphatic vessels and lymphatic endothelial cells have come to light in recent years, demonstrating that lymphatic vessels help shape immune responses in a variety of ways: promoting tolerance to self-antigens, archiving antigen for later presentation, dampening effector immune responses, and resolving inflammation, among others. In addition to these new biological insights, the growing field of immunoengineering has begun to explore therapeutic approaches to utilize or exploit the lymphatic system for immunotherapy.
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Affiliation(s)
- Katharina Maisel
- Institute for Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Maria Stella Sasso
- Institute for Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Lambert Potin
- Institute for Molecular Engineering, University of Chicago, Chicago, IL, USA; École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Melody A Swartz
- Institute for Molecular Engineering, University of Chicago, Chicago, IL, USA; Ben May Institute for Cancer Research, University of Chicago, Chicago, IL, USA.
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49
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Xiong Y, Brinkman CC, Famulski KS, Mongodin EF, Lord CJ, Hippen KL, Blazar BR, Bromberg JS. A robust in vitro model for trans-lymphatic endothelial migration. Sci Rep 2017; 7:1633. [PMID: 28487567 PMCID: PMC5431648 DOI: 10.1038/s41598-017-01575-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 03/29/2017] [Indexed: 12/12/2022] Open
Abstract
Trans-endothelial migration (TEM) is essential for leukocyte circulation. While much is known about trans-blood endothelial migration, far less is known about trans-lymphatic endothelial migration. We established an in vitro system to evaluate lymphatic TEM for various cell types across primary mouse and human lymphatic endothelial cells (LEC), and validated the model for the murine LEC cell line SVEC4-10. T cells exhibited enhanced unidirectional migration from the basal (abluminal) to the apical (luminal) surface across LEC, whereas for blood endothelial cells (BEC) they migrated similarly in both directions. This preferential, vectorial migration was chemotactic toward many different chemoattractants and dose-dependent. Stromal protein fibers, interstitial type fluid flow, distribution of chemokines in the stromal layer, and inflammatory cytokines influenced LEC phenotype and leukocyte TEM. Activated and memory CD4 T cells, macrophages, and dendritic cell (DC) showed chemoattractantΔdriven vectorial migration, while CD8 T cell migration across LEC was not. The system was further validated for studying cancer cell transmigration across lymphatic endothelium. This model for lymphatic TEM for various migrating and endothelial cell types possesses the capacity to be high-throughput, highly reproducible and integrate the complexities of lymphatic biology, stromal variability, chemoattractant distribution, and fluid flow.
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Affiliation(s)
- Yanbao Xiong
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, USA
| | - C Colin Brinkman
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, USA
| | - Konrad S Famulski
- Alberta Transplant Applied Genomics Centre, University of Alberta, Edmonton, Canada
| | - Emmanuel F Mongodin
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, USA
| | - Colin J Lord
- University of Minnesota Cancer Center and the Department of Pediatrics, Division of Blood and Marrow Transplantation, University of Minnesota, Minneapolis, 55455, USA
| | - Keli L Hippen
- University of Minnesota Cancer Center and the Department of Pediatrics, Division of Blood and Marrow Transplantation, University of Minnesota, Minneapolis, 55455, USA
| | - Bruce R Blazar
- University of Minnesota Cancer Center and the Department of Pediatrics, Division of Blood and Marrow Transplantation, University of Minnesota, Minneapolis, 55455, USA
| | - Jonathan S Bromberg
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, USA. .,Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, USA. .,Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, 21201, USA.
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50
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Bosisio FM, van den Oord JJ. Immunoplasticity in cutaneous melanoma: beyond pure morphology. Virchows Arch 2017; 470:357-369. [PMID: 28054151 DOI: 10.1007/s00428-016-2058-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 12/03/2016] [Accepted: 12/19/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Francesca Maria Bosisio
- Laboratory of Translational Cell and Tissue Research, KUL, Minderbroederstraat 19, 3000, Leuven, Belgium.
- Università degli studi di Milano-Bicocca, Milan, Italy.
| | - Joost J van den Oord
- Laboratory of Translational Cell and Tissue Research, KUL, Minderbroederstraat 19, 3000, Leuven, Belgium
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