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Peris Sempere V, Luo G, Muñiz-Castrillo S, Pinto AL, Picard G, Rogemond V, Titulaer MJ, Finke C, Leypoldt F, Kuhlenbäumer G, Jones HF, Dale RC, Binks S, Irani SR, Bastiaansen AE, de Vries JM, de Bruijn MAAM, Roelen DL, Kim TJ, Chu K, Lee ST, Kanbayashi T, Pollock NR, Kichula KM, Mumme-Monheit A, Honnorat J, Norman PJ, Mignot E. HLA and KIR genetic association and NK cells in anti-NMDAR encephalitis. Front Immunol 2024; 15:1423149. [PMID: 39050850 PMCID: PMC11266021 DOI: 10.3389/fimmu.2024.1423149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 06/06/2024] [Indexed: 07/27/2024] Open
Abstract
Introduction Genetic predisposition to autoimmune encephalitis with antibodies against N-methyl-D-aspartate receptor (NMDAR) is poorly understood. Given the diversity of associated environmental factors (tumors, infections), we hypothesized that human leukocyte antigen (HLA) and killer-cell immunoglobulin-like receptors (KIR), two extremely polymorphic gene complexes key to the immune system, might be relevant for the genetic predisposition to anti-NMDAR encephalitis. Notably, KIR are chiefly expressed by Natural Killer (NK) cells, recognize distinct HLA class I allotypes and play a major role in anti-tumor and anti-infection responses. Methods We conducted a Genome Wide Association Study (GWAS) with subsequent control-matching using Principal Component Analysis (PCA) and HLA imputation, in a multi-ethnic cohort of anti-NMDAR encephalitis (n=479); KIR and HLA were further sequenced in a large subsample (n=323). PCA-controlled logistic regression was then conducted for carrier frequencies (HLA and KIR) and copy number variation (KIR). HLA-KIR interaction associations were also modeled. Additionally, single cell sequencing was conducted in peripheral blood mononuclear cells from 16 cases and 16 controls, NK cells were sorted and phenotyped. Results Anti-NMDAR encephalitis showed a weak HLA association with DRB1*01:01~DQA1*01:01~DQB1*05:01 (OR=1.57, 1.51, 1.45; respectively), and DRB1*11:01 (OR=1.60); these effects were stronger in European descendants and in patients without an underlying ovarian teratoma. More interestingly, we found increased copy number variation of KIR2DL5B (OR=1.72), principally due to an overrepresentation of KIR2DL5B*00201. Further, we identified two allele associations in framework genes, KIR2DL4*00103 (25.4% vs. 12.5% in controls, OR=1.98) and KIR3DL3*00302 (5.3% vs. 1.3%, OR=4.44). Notably, the ligands of these KIR2DL4 and KIR3DL3, respectively, HLA-G and HHLA2, are known to act as immune checkpoint with immunosuppressive functions. However, we did not find differences in specific KIR-HLA ligand interactions or HLA-G polymorphisms between cases and controls. Similarly, gene expression of CD56dim or CD56bright NK cells did not differ between cases and controls. Discussion Our observations for the first time suggest that the HLA-KIR axis might be involved in anti-NMDAR encephalitis. While the genetic risk conferred by the identified polymorphisms appears small, a role of this axis in the pathophysiology of this disease appears highly plausible and should be analyzed in future studies.
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Affiliation(s)
- Vicente Peris Sempere
- Stanford Center for Sleep Science and Medicine, Stanford University, Palo Alto, CA, United States
| | - Guo Luo
- Stanford Center for Sleep Science and Medicine, Stanford University, Palo Alto, CA, United States
| | - Sergio Muñiz-Castrillo
- Stanford Center for Sleep Science and Medicine, Stanford University, Palo Alto, CA, United States
| | - Anne-Laurie Pinto
- French Reference Center on Paraneoplastic Neurological Syndrome and Autoimmune Encephalitis, Hospices Civils de Lyon, Lyon, France
- Institut MeLiS INSERM U1314/CNRS UMR 5284, Université Claude Bernard Lyon 1, Lyon, France
| | - Géraldine Picard
- French Reference Center on Paraneoplastic Neurological Syndrome and Autoimmune Encephalitis, Hospices Civils de Lyon, Lyon, France
- Institut MeLiS INSERM U1314/CNRS UMR 5284, Université Claude Bernard Lyon 1, Lyon, France
| | - Véronique Rogemond
- French Reference Center on Paraneoplastic Neurological Syndrome and Autoimmune Encephalitis, Hospices Civils de Lyon, Lyon, France
- Institut MeLiS INSERM U1314/CNRS UMR 5284, Université Claude Bernard Lyon 1, Lyon, France
| | | | - Carsten Finke
- Department of Neurology and Experimental Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Frank Leypoldt
- Department of Neurology, Christian-Albrechts-University/University Hospital Schleswig-Holstein, Kiel, Germany
- Neuroimmunology, Institute of Clinical Chemistry, University Hospital Schleswig-Holstein Kiel/Lübeck, Kiel, Germany
| | - Gregor Kuhlenbäumer
- Department of Neurology, Christian-Albrechts-University/University Hospital Schleswig-Holstein, Kiel, Germany
| | | | - Hannah F. Jones
- Starship Hospital, Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Russell C. Dale
- Kids Neuroscience Centre, Children’s Hospital at Westmead clinical school, University of Sydney, Sydney, NSW, Australia
| | - Sophie Binks
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
- Department of Neurology, John Radcliffe Hospital, Oxford, United Kingdom
| | - Sarosh R. Irani
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
- Departments of Neurology and Neurosciences, Mayo Clinic, Jacksonville, FL, United States
| | | | - Juna M. de Vries
- Department of Neurology, Erasmus Medical Center, Rotterdam, Netherlands
| | | | - Dave L. Roelen
- Department of Immunogenetics and Transplantation Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Tae-Joon Kim
- Department of Neurology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Kon Chu
- Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Soon-Tae Lee
- Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | | | - Nicholas R. Pollock
- Department of Biomedical Informatics, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Katherine M. Kichula
- Department of Biomedical Informatics, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Abigail Mumme-Monheit
- Department of Biomedical Informatics, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Jérôme Honnorat
- French Reference Center on Paraneoplastic Neurological Syndrome and Autoimmune Encephalitis, Hospices Civils de Lyon, Lyon, France
- Institut MeLiS INSERM U1314/CNRS UMR 5284, Université Claude Bernard Lyon 1, Lyon, France
| | - Paul J. Norman
- Department of Biomedical Informatics, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Emmanuel Mignot
- Stanford Center for Sleep Science and Medicine, Stanford University, Palo Alto, CA, United States
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2
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Lee M, Bell CJM, Rubio Garcia A, Godfrey L, Pekalski M, Wicker LS, Todd JA, Ferreira RC. CD56 bright natural killer cells preferentially kill proliferating CD4 + T cells. DISCOVERY IMMUNOLOGY 2023; 2:kyad012. [PMID: 37649552 PMCID: PMC10465185 DOI: 10.1093/discim/kyad012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/14/2023] [Accepted: 08/10/2023] [Indexed: 09/01/2023]
Abstract
Human CD56br natural killer (NK) cells represent a small subset of CD56+ NK cells in circulation and are largely tissue-resident. The frequency and number of CD56br NK cells in blood has been shown to increase following administration of low-dose IL-2 (LD-IL2), a therapy aimed to specifically expand CD4+ regulatory T cells (Tregs). Given the potential clinical application of LD-IL-2 immunotherapy across several immune diseases, including the autoimmune disease type 1 diabetes, a better understanding of the functional consequences of this expansion is urgently needed. In this study, we developed an in vitro co-culture assay with activated CD4+ T cells to measure NK cell killing efficiency. We show that CD56br and CD56dim NK cells show similar efficiency at killing activated CD4+ conventional T (Tconv) and Treg cell subsets. However, in contrast to CD56dim cells, CD56br NK cells preferentially target highly proliferative cells. We hypothesize that CD56br NK cells have an immunoregulatory role through the elimination of proliferating autoreactive CD4+ Tconv cells that have escaped Treg suppression. These results have implications for the interpretation of current and future trials of LD-IL-2 by providing evidence for a new, possibly beneficial immunomodulatory mechanism of LD-IL-2-expanded CD56br NK cells.
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Affiliation(s)
- Mercede Lee
- JDRF/Wellcome Diabetes and Inflammation Laboratory, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Charles J M Bell
- JDRF/Wellcome Diabetes and Inflammation Laboratory, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Arcadio Rubio Garcia
- JDRF/Wellcome Diabetes and Inflammation Laboratory, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Leila Godfrey
- JDRF/Wellcome Diabetes and Inflammation Laboratory, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Marcin Pekalski
- JDRF/Wellcome Diabetes and Inflammation Laboratory, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Linda S Wicker
- JDRF/Wellcome Diabetes and Inflammation Laboratory, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - John A Todd
- JDRF/Wellcome Diabetes and Inflammation Laboratory, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Ricardo C Ferreira
- JDRF/Wellcome Diabetes and Inflammation Laboratory, Wellcome Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
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3
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Aglas-Leitner FT, Juillard P, Juillard A, Byrne SN, Hawke S, Grau GE, Marsh-Wakefield F. Mass cytometry reveals cladribine-induced resets among innate lymphoid cells in multiple sclerosis. Sci Rep 2022; 12:20411. [PMID: 36437270 PMCID: PMC9701791 DOI: 10.1038/s41598-022-24617-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/17/2022] [Indexed: 11/29/2022] Open
Abstract
Here we present a comprehensive mass cytometry analysis of peripheral innate lymphoid cell (ILC) subsets in relapsing/remitting MS (RRMS) patients prior to and after onset of cladribine tablets (CladT). ILC analysis was conducted on CyTOF data from peripheral blood mononuclear cells (PBMC) of MS patients before, 2 and 6 months after onset of CladT, and non-MS controls. Dimensionality reduction was used for immunophenotyping ILC subsets. CladT reduced all ILC subsets, except for CD56bright NK cells and ILC2. Furthermore, CD38+ NK cell and CCR6+ ILC3 were excluded from CladT-induced immune cell reductions. Post-CladT replenishment by immature ILC was noted by increased CD5+ ILC1 proportions at 2 months, and boosted CD38-CD56bright NK cell numbers at 6 months. CladT induce immune cell depletion among ILC but exclude CD56bright NK cells and ILC2 subsets, as well as CD38+ NK cell and CCR6+ ILC3 immunophenotypes. Post-CladT ILC expansions indicate ILC reconstitution towards a more tolerant immune system phenotype.
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Affiliation(s)
- F. T. Aglas-Leitner
- grid.1013.30000 0004 1936 834XVascular Immunology Unit, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia ,grid.22937.3d0000 0000 9259 8492Medical University of Vienna, Spitalgasse 23, Vienna, Austria
| | - P. Juillard
- grid.1013.30000 0004 1936 834XVascular Immunology Unit, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - A. Juillard
- grid.1013.30000 0004 1936 834XVascular Immunology Unit, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - S. N. Byrne
- grid.452919.20000 0001 0436 7430Centre for Immunology and Allergy Research, The Westmead Institute for Medical Research, Sydney, Australia ,grid.1013.30000 0004 1936 834XFaculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, Australia
| | - S. Hawke
- grid.1013.30000 0004 1936 834XVascular Immunology Unit, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia ,Central West Neurology and Neurosurgery, Orange, Australia
| | - G. E. Grau
- grid.1013.30000 0004 1936 834XVascular Immunology Unit, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - F. Marsh-Wakefield
- grid.1013.30000 0004 1936 834XVascular Immunology Unit, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia ,grid.248902.50000 0004 0444 7512Liver Injury & Cancer Group, Centenary Institute, Sydney, Australia ,grid.1013.30000 0004 1936 834XHuman Cancer & Viral Immunology Laboratory, The University of Sydney, Sydney, Australia ,grid.248902.50000 0004 0444 7512Centenary Institute, Sydney, NSW Australia
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4
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Kroll KW, Shah SV, Lucar OA, Premeaux TA, Shikuma CM, Corley MJ, Mosher M, Woolley G, Bowler S, Ndhlovu LC, Reeves RK. Mucosal-homing natural killer cells are associated with aging in persons living with HIV. Cell Rep Med 2022; 3:100773. [PMID: 36208628 PMCID: PMC9589002 DOI: 10.1016/j.xcrm.2022.100773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 06/29/2022] [Accepted: 09/16/2022] [Indexed: 11/07/2022]
Abstract
Natural killer (NK) cells are critical modulators of HIV transmission and disease. Recent evidence suggests a loss of NK cell cytotoxicity during aging, yet analysis of NK cell biology and aging in people with HIV (PWH) is lacking. Herein, we perform comprehensive analyses of people aging with and without HIV to determine age-related NK phenotypic changes. Utilizing high-dimensional flow cytometry, we analyze 30 immune-related proteins on peripheral NK cells from healthy donors, PWH with viral suppression, and viremic PWH. NK cell phenotypes are dynamic across aging but change significantly in HIV and on antiretroviral drug therapy (ART). NK cells in healthy aging show increasing ⍺4β7 and decreasing CCR7 expression and a reverse phenomenon in PWH. These HIV-associated trafficking patterns could be due to NK cell recruitment to HIV reservoir formation in lymphoid tissue or failed mucosal signaling in the HIV-infected gut but appear to be tight delineators of age-related NK cell changes.
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Affiliation(s)
- Kyle W Kroll
- Division of Innate and Comparative Immunology, Center for Human Systems Immunology, Duke University, Durham, NC, USA; Department of Surgery, Duke University, Durham, NC, USA
| | - Spandan V Shah
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Olivier A Lucar
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Thomas A Premeaux
- Department of Medicine, Division of Infectious Diseases, Weill Cornell Medicine, New York City, NY, USA
| | | | - Michael J Corley
- Department of Medicine, Division of Infectious Diseases, Weill Cornell Medicine, New York City, NY, USA
| | - Matthew Mosher
- Division of Innate and Comparative Immunology, Center for Human Systems Immunology, Duke University, Durham, NC, USA; Department of Surgery, Duke University, Durham, NC, USA
| | - Griffin Woolley
- Division of Innate and Comparative Immunology, Center for Human Systems Immunology, Duke University, Durham, NC, USA; Department of Surgery, Duke University, Durham, NC, USA
| | - Scott Bowler
- Department of Medicine, Division of Infectious Diseases, Weill Cornell Medicine, New York City, NY, USA
| | - Lishomwa C Ndhlovu
- Department of Medicine, Division of Infectious Diseases, Weill Cornell Medicine, New York City, NY, USA
| | - R Keith Reeves
- Division of Innate and Comparative Immunology, Center for Human Systems Immunology, Duke University, Durham, NC, USA; Department of Surgery, Duke University, Durham, NC, USA; Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA.
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5
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Malla RR, Vasudevaraju P, Vempati RK, Rakshmitha M, Merchant N, Nagaraju GP. Regulatory T cells: Their role in triple-negative breast cancer progression and metastasis. Cancer 2022; 128:1171-1183. [PMID: 34990009 DOI: 10.1002/cncr.34084] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/29/2021] [Accepted: 12/08/2021] [Indexed: 01/09/2023]
Abstract
Triple-negative breast cancer (TNBC) is an aggressive and immunogenic subtype of breast cancer. This tumorigenicity is independent of hormonal or HER2 pathways because of a lack of respective receptor expression. TNBC is extremely prone to drug resistance and early recurrence because of T-regulatory cell (Treg) infiltration into the tumor microenvironment (TME) in addition to other mechanisms like genomic instability. Tumor-infiltrating Tregs interact with both tumor and stromal cells as well as extracellular matrix components in the TME and induce an immune-suppressive phenotype. Hence, treatment of TNBC with conventional therapies remains challenging. Understanding the protective mechanism of Tregs in shielding TNBC from antitumor immune responses in the TME will pave the way for developing novel, immune-based therapeutics. The current review focuses on the role of tumor-infiltrating Tregs in tumor progression and metabolic reprogramming of the TME. The authors have extended their focus to oncotargeting Treg-mediated immune suppression in breast cancer. Because of its potential role in the TME, modulating Treg activity may provide a novel strategic intervention to combat TNBC. Both under laboratory conditions and in clinical trials, currently available anticancer drugs and natural therapeutics as potential agents for targeting Tregs are explored.
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Affiliation(s)
- Rama Rao Malla
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, Institute of Science, Gandhi Institute of Technology and Management (Deemed to be University), Visakhapatnam, India.,Department of Biochemistry and Bioinformatics, Institute of Science, Gandhi Institute of Technology and Management (Deemed to be University), Visakhapatnam, India
| | - Padmaraju Vasudevaraju
- Department of Biochemistry and Bioinformatics, Institute of Science, Gandhi Institute of Technology and Management (Deemed to be University), Visakhapatnam, India
| | - Rahul Kumar Vempati
- Department of Biochemistry and Bioinformatics, Institute of Science, Gandhi Institute of Technology and Management (Deemed to be University), Visakhapatnam, India
| | - Marni Rakshmitha
- Department of Biochemistry and Bioinformatics, Institute of Science, Gandhi Institute of Technology and Management (Deemed to be University), Visakhapatnam, India
| | - Neha Merchant
- Department of Bioscience and Biotechnology, Banasthali University, Jaipur, India
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6
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Quintelier K, Couckuyt A, Emmaneel A, Aerts J, Saeys Y, Van Gassen S. Analyzing high-dimensional cytometry data using FlowSOM. Nat Protoc 2021; 16:3775-3801. [PMID: 34172973 DOI: 10.1038/s41596-021-00550-0] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/31/2021] [Indexed: 02/06/2023]
Abstract
The dimensionality of cytometry data has strongly increased in the last decade, and in many situations the traditional manual downstream analysis becomes insufficient. The field is therefore slowly moving toward more automated approaches, and in this paper we describe the protocol for analyzing high-dimensional cytometry data using FlowSOM, a clustering and visualization algorithm based on a self-organizing map. FlowSOM is used to distinguish cell populations from cytometry data in an unsupervised way and can help to gain deeper insights in fields such as immunology and oncology. Since the original FlowSOM publication (2015), we have validated the tool on a wide variety of datasets, and to write this protocol, we made use of this experience to improve the user-friendliness of the package (e.g., comprehensive functions replacing commonly required scripts). Where the original paper focused mainly on the algorithm description, this protocol offers user guidelines on how to implement the procedure, detailed parameter descriptions and troubleshooting recommendations. The protocol provides clearly annotated R code, and is therefore relevant for all scientists interested in computational high-dimensional analyses without requiring a strong bioinformatics background. We demonstrate the complete workflow, starting from data preparation (such as compensation, transformation and quality control), including detailed discussion of the different FlowSOM parameters and visualization options, and concluding with how the results can be further used to answer biological questions, such as statistical comparison between groups of interest. An average FlowSOM analysis takes 1-3 h to complete, though quality issues can increase this time considerably.
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Affiliation(s)
- Katrien Quintelier
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium.,Data Mining and Modeling for Biomedicine Group, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Artuur Couckuyt
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium.,Data Mining and Modeling for Biomedicine Group, VIB Center for Inflammation Research, Ghent, Belgium
| | - Annelies Emmaneel
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium.,Data Mining and Modeling for Biomedicine Group, VIB Center for Inflammation Research, Ghent, Belgium
| | - Joachim Aerts
- Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Yvan Saeys
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium.,Data Mining and Modeling for Biomedicine Group, VIB Center for Inflammation Research, Ghent, Belgium
| | - Sofie Van Gassen
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium. .,Data Mining and Modeling for Biomedicine Group, VIB Center for Inflammation Research, Ghent, Belgium.
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7
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Seiler C, Ferreira AM, Kronstad LM, Simpson LJ, Le Gars M, Vendrame E, Blish CA, Holmes S. CytoGLMM: conditional differential analysis for flow and mass cytometry experiments. BMC Bioinformatics 2021; 22:137. [PMID: 33752595 PMCID: PMC7983283 DOI: 10.1186/s12859-021-04067-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/03/2021] [Indexed: 11/10/2022] Open
Abstract
Background Flow and mass cytometry are important modern immunology tools for measuring expression levels of multiple proteins on single cells. The goal is to better understand the mechanisms of responses on a single cell basis by studying differential expression of proteins. Most current data analysis tools compare expressions across many computationally discovered cell types. Our goal is to focus on just one cell type. Our narrower field of application allows us to define a more specific statistical model with easier to control statistical guarantees. Results Differential analysis of marker expressions can be difficult due to marker correlations and inter-subject heterogeneity, particularly for studies of human immunology. We address these challenges with two multiple regression strategies: a bootstrapped generalized linear model and a generalized linear mixed model. On simulated datasets, we compare the robustness towards marker correlations and heterogeneity of both strategies. For paired experiments, we find that both strategies maintain the target false discovery rate under medium correlations and that mixed models are statistically more powerful under the correct model specification. For unpaired experiments, our results indicate that much larger patient sample sizes are required to detect differences. We illustrate the CytoGLMM R package and workflow for both strategies on a pregnancy dataset. Conclusion Our approach to finding differential proteins in flow and mass cytometry data reduces biases arising from marker correlations and safeguards against false discoveries induced by patient heterogeneity.
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Affiliation(s)
- Christof Seiler
- Department of Data Science and Knowledge Engineering, Maastricht University, Maastricht, The Netherlands. .,Mathematics Centre Maastricht, Maastricht University, Maastricht, The Netherlands. .,Department of Statistics, Stanford University, Stanford, USA.
| | | | - Lisa M Kronstad
- Immunology Program, Stanford University School of Medicine, Stanford, USA.,Department of Medicine, Stanford University School of Medicine, Stanford, USA.,Department of Microbiology and Immunology, Midwestern University, Downers Grove, USA
| | - Laura J Simpson
- Immunology Program, Stanford University School of Medicine, Stanford, USA.,Department of Medicine, Stanford University School of Medicine, Stanford, USA
| | - Mathieu Le Gars
- Immunology Program, Stanford University School of Medicine, Stanford, USA.,Department of Medicine, Stanford University School of Medicine, Stanford, USA
| | - Elena Vendrame
- Immunology Program, Stanford University School of Medicine, Stanford, USA.,Department of Medicine, Stanford University School of Medicine, Stanford, USA
| | - Catherine A Blish
- Immunology Program, Stanford University School of Medicine, Stanford, USA.,Department of Medicine, Stanford University School of Medicine, Stanford, USA.,Chan Zuckerberg Biohub, San Francisco, USA
| | - Susan Holmes
- Department of Statistics, Stanford University, Stanford, USA
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8
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Liu M, Liang S, Zhang C. NK Cells in Autoimmune Diseases: Protective or Pathogenic? Front Immunol 2021; 12:624687. [PMID: 33777006 PMCID: PMC7994264 DOI: 10.3389/fimmu.2021.624687] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 02/22/2021] [Indexed: 12/12/2022] Open
Abstract
Autoimmune diseases generally result from the loss of self-tolerance (i.e., failure of the immune system to distinguish self from non-self), and are characterized by autoantibody production and hyperactivation of T cells, which leads to damage of specific or multiple organs. Thus, autoimmune diseases can be classified as organ-specific or systemic. Genetic and environmental factors contribute to the development of autoimmunity. Recent studies have demonstrated the contribution of innate immunity to the onset of autoimmune diseases. Natural killer (NK) cells, which are key components of the innate immune system, have been implicated in the development of multiple autoimmune diseases such as systemic lupus erythematosus, type I diabetes mellitus, and autoimmune liver disease. However, NK cells have both protective and pathogenic roles in autoimmunity depending on the NK cell subset, microenvironment, and disease type or stage. In this work, we review the current knowledge of the varied roles of NK cell subsets in systemic and organic-specific autoimmune diseases and their clinical potential as therapeutic targets.
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Affiliation(s)
- Meifang Liu
- Key Lab for Immunology in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Shujuan Liang
- Key Lab for Immunology in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Cai Zhang
- School of Pharmaceutical Sciences, Cheeloo College of Medicine, Institute of Immunopharmaceutical Sciences, Shandong University, Jinan, China
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9
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Vendrame E, McKechnie JL, Ranganath T, Zhao NQ, Rustagi A, Vergara R, Ivison GT, Kronstad LM, Simpson LJ, Blish CA. Profiling of the Human Natural Killer Cell Receptor-Ligand Repertoire. J Vis Exp 2020:10.3791/61912. [PMID: 33283785 PMCID: PMC7935321 DOI: 10.3791/61912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Natural killer (NK) cells are among the first responders to viral infections. The ability of NK cells to rapidly recognize and kill virally infected cells is regulated by their expression of germline-encoded inhibitory and activating receptors. The engagement of these receptors by their cognate ligands on target cells determines whether the intercellular interaction will result in NK cell killing. This protocol details the design and optimization of two complementary mass cytometry (CyTOF) panels. One panel was designed to phenotype NK cells based on receptor expression. The other panel was designed to interrogate expression of known ligands for NK cell receptors on several immune cell subsets. Together, these two panels allow for the profiling of the human NK cell receptor-ligand repertoire. Furthermore, this protocol also details the process by which we stain samples for CyTOF. This process has been optimized for improved reproducibility and standardization. An advantage of CyTOF is its ability to measure over 40 markers in each panel, with minimal signal overlap, allowing researchers to capture the breadth of the NK cell receptor-ligand repertoire. Palladium barcoding also reduces inter-sample variation, as well as consumption of reagents, making it easier to stain samples with each panel in parallel. Limitations of this protocol include the relatively low throughput of CyTOF and the inability to recover cells after analysis. These panels were designed for the analysis of clinical samples from patients suffering from acute and chronic viral infections, including dengue virus, human immunodeficiency virus (HIV), and influenza. However, they can be utilized in any setting to investigate the human NK cell receptor-ligand repertoire. Importantly, these methods can be applied broadly to the design and execution of future CyTOF panels.
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Affiliation(s)
- Elena Vendrame
- Department of Medicine, Stanford University School of Medicine
| | - Julia L McKechnie
- Department of Medicine, Stanford University School of Medicine; Program in Immunology, Stanford University School of Medicine
| | | | - Nancy Q Zhao
- Department of Medicine, Stanford University School of Medicine; Program in Immunology, Stanford University School of Medicine
| | - Arjun Rustagi
- Department of Medicine, Stanford University School of Medicine
| | | | - Geoffrey T Ivison
- Department of Medicine, Stanford University School of Medicine; Program in Immunology, Stanford University School of Medicine
| | - Lisa M Kronstad
- Department of Medicine, Stanford University School of Medicine
| | - Laura J Simpson
- Department of Medicine, Stanford University School of Medicine
| | - Catherine A Blish
- Department of Medicine, Stanford University School of Medicine; Program in Immunology, Stanford University School of Medicine; Chan-Zuckerberg BioHub;
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Hayes ET, Hagan CE, Khoryati L, Gavin MA, Campbell DJ. Regulatory T Cells Maintain Selective Access to IL-2 and Immune Homeostasis despite Substantially Reduced CD25 Function. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2020; 205:2667-2678. [PMID: 33055282 PMCID: PMC7657993 DOI: 10.4049/jimmunol.1901520] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 09/12/2020] [Indexed: 11/19/2022]
Abstract
IL-2 is a critical regulator of immune homeostasis through its impact on both regulatory T (Treg) and effector T cells. However, the precise role of IL-2 in the maintenance and function of Treg cells in the adult peripheral immune system remains unclear. In this study, we report that neutralization of IL-2 in mice abrogated all IL-2R signaling in Treg cells, but was well tolerated and only gradually impacted Treg cell function and immune homeostasis. By contrast, despite substantially reduced IL-2 sensitivity, Treg cells maintained selective IL-2 signaling and prevented immune dysregulation following treatment with the inhibitory anti-CD25 Ab PC61. Reduction of Treg cells with a depleting version of the same CD25 Ab permitted CD8+ effector T cell proliferation before progressing to more widespread immune dysregulation. Thus, despite severely curtailed CD25 expression and function, Treg cells retain selective access to IL-2 that supports their anti-inflammatory functions in vivo. Ab-mediated targeting of CD25 is being actively pursued for treatment of autoimmune disease and prevention of allograft rejection, and our findings help inform therapeutic manipulation and design for optimal patient outcomes.
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Affiliation(s)
- Erika T Hayes
- Immunology Program, Benaroya Research Institute, Seattle, WA 98101; and
- Department of Immunology, University of Washington School of Medicine, Seattle, WA 98195
| | - Cassidy E Hagan
- Immunology Program, Benaroya Research Institute, Seattle, WA 98101; and
- Department of Immunology, University of Washington School of Medicine, Seattle, WA 98195
| | - Liliane Khoryati
- Immunology Program, Benaroya Research Institute, Seattle, WA 98101; and
| | - Marc A Gavin
- Immunology Program, Benaroya Research Institute, Seattle, WA 98101; and
| | - Daniel J Campbell
- Immunology Program, Benaroya Research Institute, Seattle, WA 98101; and
- Department of Immunology, University of Washington School of Medicine, Seattle, WA 98195
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