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Galipeau HJ, Hinterleitner R, Leonard MM, Caminero A. Non-Host Factors Influencing Onset and Severity of Celiac Disease. Gastroenterology 2024; 167:34-50. [PMID: 38286392 DOI: 10.1053/j.gastro.2024.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 01/31/2024]
Abstract
Celiac disease (CeD) is a chronic autoimmune condition driven by gluten ingestion in genetically predisposed individuals, resulting in inflammatory lesions in the proximal small intestine. Although the presence of specific HLA-linked haplotypes and gluten consumption are necessary for disease development, they alone do not account for the variable onset of CeD in susceptible individuals. This review explores the multifaceted role of non-host factors in CeD development, including dietary and microbial influences. We discuss clinical associations and observations highlighting the impact of these factors on disease onset and severity. Furthermore, we discuss studies in CeD-relevant animal models that offer mechanistic insights into how diet, the microbiome, and enteric infections modulate CeD pathogenesis. Finally, we address the clinical implications and therapeutic potential of understanding these cofactors offering a promising avenue for preventive and therapeutic interventions in CeD management.
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Affiliation(s)
- Heather J Galipeau
- Farncombe Family Digestive Health Research Institute, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
| | - Reinhard Hinterleitner
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Maureen M Leonard
- Division of Pediatric Gastroenterology and Nutrition, Department of Pediatrics, MassGeneral Hospital for Children, Harvard Medical School, Boston, Massachusetts; Center for Celiac Research and Treatment, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Alberto Caminero
- Farncombe Family Digestive Health Research Institute, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
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2
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Gibson A, Ram R, Gangula R, Li Y, Mukherjee E, Palubinsky AM, Campbell CN, Thorne M, Konvinse KC, Choshi P, Deshpande P, Pedretti S, O’Neil RT, Wanjalla CN, Kalams SA, Gaudieri S, Lehloenya RJ, Bailin SS, Chopra A, Mallal SA, Phillips EJ. Multiomic single-cell sequencing defines tissue-specific responses in Stevens-Johnson Syndrome and Toxic epidermal necrolysis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.26.568771. [PMID: 38405793 PMCID: PMC10888802 DOI: 10.1101/2023.11.26.568771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Stevens-Johnson syndrome and toxic epidermal necrolysis (SJS/TEN) is a rare but life-threatening cutaneous drug reaction mediated by human leukocyte antigen (HLA) class I-restricted CD8+ T-cells. To obtain an unbiased assessment of SJS/TEN cellular immunopathogenesis, we performed single-cell (sc) transcriptome, surface proteome, and TCR sequencing on unaffected skin, affected skin, and blister fluid from 17 SJS/TEN patients. From 119,784 total cells, we identified 16 scRNA-defined subsets, confirmed by subset-defining surface protein expression. Keratinocytes upregulated HLA and IFN-response genes in the affected skin. Cytotoxic CD8+ T-cell subpopulations of expanded and unexpanded TCRαβ clonotypes were shared in affected skin and blister fluid but absent or unexpanded in SJS/TEN unaffected skin. SJS/TEN blister fluid is a rich reservoir of oligoclonal CD8+ T-cells with an effector phenotype driving SJS/TEN pathogenesis. This multiomic database will act as the basis to define antigen-reactivity, HLA restriction, and signatures of drug-antigen-reactive T-cell clonotypes at a tissue level.
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Affiliation(s)
- Andrew Gibson
- Institute for Immunology and Infectious Diseases, Murdoch University, Western Australia, Australia
| | - Ramesh Ram
- Institute for Immunology and Infectious Diseases, Murdoch University, Western Australia, Australia
| | - Rama Gangula
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Yueran Li
- Institute for Immunology and Infectious Diseases, Murdoch University, Western Australia, Australia
| | - Eric Mukherjee
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Amy M Palubinsky
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Chelsea N Campbell
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Michael Thorne
- Institute for Immunology and Infectious Diseases, Murdoch University, Western Australia, Australia
| | - Katherine C Konvinse
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Phuti Choshi
- Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa
| | - Pooja Deshpande
- Institute for Immunology and Infectious Diseases, Murdoch University, Western Australia, Australia
| | - Sarah Pedretti
- Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa
| | - Richard T O’Neil
- Department of Veterans Affairs, Ralph H Johnson VA Medical Center and Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Celestine N Wanjalla
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Spyros A Kalams
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Silvana Gaudieri
- Institute for Immunology and Infectious Diseases, Murdoch University, Western Australia, Australia
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
- School of Human Sciences, The University of Western Australia, Western Australia, Australia
| | - Rannakoe J Lehloenya
- Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa
- Division of Dermatology, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Samuel S Bailin
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Abha Chopra
- Institute for Immunology and Infectious Diseases, Murdoch University, Western Australia, Australia
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Jason A Trubiano on behalf of the AUS-SCAR study group
- Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Victoria, Australia
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Victoria, Australia
| | | | - Simon A Mallal
- Institute for Immunology and Infectious Diseases, Murdoch University, Western Australia, Australia
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
| | - Elizabeth J Phillips
- Institute for Immunology and Infectious Diseases, Murdoch University, Western Australia, Australia
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, Tennessee, USA
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3
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Gu J, Zhang J, Liu Q, Xu S. Neurological risks of COVID-19 in women: the complex immunology underpinning sex differences. Front Immunol 2023; 14:1281310. [PMID: 38035090 PMCID: PMC10685449 DOI: 10.3389/fimmu.2023.1281310] [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: 08/22/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023] Open
Abstract
The COVID-19 pandemic has uncovered many mysteries about SARS-CoV-2, including its potential to trigger abnormal autoimmune responses. Emerging evidence suggests women may face higher risks from COVID-induced autoimmunity manifesting as persistent neurological symptoms. Elucidating the mechanisms underlying this female susceptibility is now imperative. We synthesize key insights from existing studies on how COVID-19 infection can lead to immune tolerance loss, enabling autoreactive antibodies and lymphocyte production. These antibodies and lymphocytes infiltrate the central nervous system. Female sex hormones like estrogen and X-chromosome mediated effects likely contribute to dysregulated humoral immunity and cytokine profiles among women, increasing their predisposition. COVID-19 may also disrupt the delicate immunological balance of the female microbiome. These perturbations precipitate damage to neural damage through mechanisms like demyelination, neuroinflammation, and neurodegeneration - consistent with the observed neurological sequelae in women. An intentional focus on elucidating sex differences in COVID-19 pathogenesis is now needed to inform prognosis assessments and tailored interventions for female patients. From clinical monitoring to evaluating emerging immunomodulatory therapies, a nuanced women-centered approach considering the hormonal status and immunobiology will be vital to ensure equitable outcomes. Overall, deeper insights into the apparent female specificity of COVID-induced autoimmunity will accelerate the development of solutions mitigating associated neurological harm.
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Affiliation(s)
- Jienan Gu
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jiale Zhang
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qianhui Liu
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shijie Xu
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China
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4
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Thomas OG, Olsson T. Mimicking the brain: Epstein-Barr virus and foreign agents as drivers of neuroimmune attack in multiple sclerosis. Front Immunol 2023; 14:1304281. [PMID: 38022632 PMCID: PMC10655090 DOI: 10.3389/fimmu.2023.1304281] [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: 09/29/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
T cells have an essential role in adaptive immunity against pathogens and cancer, but failure of thymic tolerance mechanisms can instead lead to escape of T cells with the ability to attack host tissues. Multiple sclerosis (MS) occurs when structures such as myelin and neurons in the central nervous system (CNS) are the target of autoreactive immune responses, resulting in lesions in the brain and spinal cord which cause varied and episodic neurological deficits. A role for autoreactive T cell and antibody responses in MS is likely, and mounting evidence implicates Epstein-Barr virus (EBV) in disease mechanisms. In this review we discuss antigen specificity of T cells involved in development and progression of MS. We examine the current evidence that these T cells can target multiple antigens such as those from pathogens including EBV and briefly describe other mechanisms through which viruses could affect disease. Unravelling the complexity of the autoantigen T cell repertoire is essential for understanding key events in the development and progression of MS, with wider implications for development of future therapies.
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Affiliation(s)
- Olivia G. Thomas
- Therapeutic Immune Design, Centre for Molecular Medicine, Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
- Neuroimmunology Unit, Department of Clinical Neuroscience, Centre for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Tomas Olsson
- Therapeutic Immune Design, Centre for Molecular Medicine, Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
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Zhu L, Peng Q, Li J, Wu Y, Wang J, Zhou D, Ma L, Yao X. scRNA-seq revealed the special TCR β & α V(D)J allelic inclusion rearrangement and the high proportion dual (or more) TCR-expressing cells. Cell Death Dis 2023; 14:487. [PMID: 37524693 PMCID: PMC10390570 DOI: 10.1038/s41419-023-06004-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 07/13/2023] [Accepted: 07/17/2023] [Indexed: 08/02/2023]
Abstract
Allelic exclusion, one lymphocyte expresses one antigen receptor, is a fundamental mechanism of immunological self-tolerance and highly specific immune responses to pathogens. However, the phenomenon of V(D)J allelic inclusion (incomplete allelic exclusion or allelic escape) rearrangement and dual TCR T cells have been discovered by multiple laboratories. Despite continuous new discoveries, the proportion and underlying mechanism of dual TCR has been puzzling immunologists. In this study, we observed the presence of single T cells expressing multiple TCR chains in all samples, with the proportion of 15%, 10%, and 20% in the human thymus, human peripheral blood, and mouse lymphoid organs, respectively. The proportion of T cells possessing multiple T-cell receptors (TCR) varied significantly in different physiological states and developmental stages. By analyzing RSS category, RSS direction, and V(D)J gene position at TR locus of T cells which contain multiple TCR chains, we creatively found that one of TCR β (or TCR α) should originate from the transcription of V(D)J combination in T-cell receptor excision circle (TREC) formed after the twice successful rearrangement in the same chromosome. Moreover, human V30 (or mouse V31) gene may participate in reverse recombination and transcription to prevent allelic exclusion. In general, high proportion of T cells with multiple TCR at the transcriptome level was first made public, and we proposed a novel mechanism of secondary (or more) TCR rearrangement on a single chromosome. Our findings also indicated that the single-cell sequencing data should be classified according to the single, multiple, and abnormal TCR when analyzing the T-cell repertoire.
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Affiliation(s)
- Lanwei Zhu
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Qi Peng
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Jun Li
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Yingjie Wu
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Jiayi Wang
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Dewei Zhou
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Long Ma
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Xinsheng Yao
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China.
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6
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Barakat C, Inagaki Y, Mizuno S, Nishio N, Katsuyama N, Sato Y, Kobayashi M, Ozeki K, Iida H, Tomita A, Sawa M, Demachi-Okamura A, Takahashi Y, Nishikawa H, Akatsuka Y. Development of TCR-T cell therapy targeting mismatched HLA-DPB1 for relapsed leukemia after allogeneic transplantation. Int J Hematol 2023:10.1007/s12185-023-03621-y. [PMID: 37310580 DOI: 10.1007/s12185-023-03621-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/23/2023] [Accepted: 05/23/2023] [Indexed: 06/14/2023]
Abstract
Relapsed leukemia after allogeneic hematopoietic stem cell transplantation (allo-HSCT) remains a significant challenge, with the re-emergence of the primary disease being the most frequent cause of death. Human leukocyte antigen (HLA)-DPB1 mismatch occurs in approximately 70% of unrelated allo-HSCT cases, and targeting mismatched HLA-DPB1 is considered reasonable for treating relapsed leukemia following allo-HSCT if performed under proper conditions. In this study, we established several clones restricted to HLA-DPB1*02:01, -DPB1*04:02, and -DPB1*09:01 from three patients who underwent HLA-DPB1 mismatched allo-HSCT using donor-derived alloreactive T cells primed to mismatched HLA-DPB1 in the recipient's body after transplantation. A detailed analysis of the DPB1*09:01-restricted clone 2A9 showed reactivity against various leukemia cell lines and primary myeloid leukemia blasts, even with low HLA-DP expression. T cell receptor (TCR)-T cells derived from clone 2A9 retained the ability to trigger HLA-DPB1*09:01-restricted recognition and lysis of various leukemia cell lines in vitro. Our study demonstrated that the induction of mismatched HLA-DPB1 specific T cell clones from physiologically primed post-allo-HSCT alloreactive CD4+ T cells and the redirection of T cells with cloned TCR cDNA by gene transfer are feasible as techniques for future adoptive immunotherapy.
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Affiliation(s)
- Carolyne Barakat
- Department of Immunology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Japan
| | - Yuichiro Inagaki
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Shohei Mizuno
- Division of Hematology, Department of Internal Medicine, Aichi Medical University, Nagakute, Japan
| | - Nobuhiro Nishio
- Center for Advanced Medicine and Clinical Research, Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Japan
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoya Katsuyama
- Department of Immunology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Japan
| | - Yoshie Sato
- Department of Immunology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Japan
| | - Miki Kobayashi
- Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Kazutaka Ozeki
- Department of Hematology and Oncology, JA Aichi Konan Kosei Hospital, Konan, Japan
| | - Hiroatsu Iida
- Department of Hematology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Akihiro Tomita
- Department of Hematology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Masashi Sawa
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Ayako Demachi-Okamura
- Division of Translational Oncoimmunology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyoshi Nishikawa
- Department of Immunology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Japan
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center (EPOC), National Cancer Center, Tokyo, Japan
| | - Yoshiki Akatsuka
- Department of Immunology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Japan.
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7
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Jang HJ, Caron C, Lee CK, Wang L, Jama B, Bui JD, Morris GP. Dual receptor T cells mediate effective antitumor immune responses via increased recognition of tumor antigens. J Immunother Cancer 2023; 11:e006472. [PMID: 37188395 PMCID: PMC10186424 DOI: 10.1136/jitc-2022-006472] [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] [Accepted: 04/30/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND Discovery that ~16% of T cells naturally co-express two T-cell receptor (TCR) clonotypes prompts examining the role of dual TCR cells in immune functions. METHODS Using TCRα-reporter transgenic mice, enabling unambiguous identification of single-TCR and dual-TCR cells, we tested the role of dual TCR cells in antitumor immune responses against immune-responsive syngeneic 6727 sarcoma and immune-resistant B16F10 melanoma. RESULTS Dual TCR cells were specifically increased among tumor-infiltrating lymphocytes (TILs) in both models, indicating selective advantage in antitumor responses. Phenotype and single-cell gene expression analyses identified dual TCR are predominant during the effective antitumor response, demonstrating selectively increased activation in the TIL compartment and skewing toward an effector memory phenotype. Absence of dual TCR cells impaired immune response to B16F10 but not 6727, suggesting that dual TCR cells may be more influential in responses against poorly immunogenic tumors. Dual TCR cells demonstrated an advantage in recognition of B16F10-derived neoantigens in vitro, providing a mechanistic basis for their antitumor reactivity. CONCLUSIONS These results discover an unrecognized role for dual TCR cells in protective immune function and identify these cells and their TCRs as a potential resource for antitumor immunotherapy.
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Affiliation(s)
- Hyun J Jang
- Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Christine Caron
- Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Calvin K Lee
- Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Lu Wang
- Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Burhan Jama
- Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Jack D Bui
- Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Gerald P Morris
- Department of Pathology, University of California San Diego, La Jolla, California, USA
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8
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Muhowski EM, Rogers LM. Dual TCR-Expressing T Cells in Cancer: How Single-Cell Technologies Enable New Investigation. Immunohorizons 2023; 7:299-306. [PMID: 37129560 DOI: 10.4049/immunohorizons.2200062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023] Open
Abstract
TCR diversity measures are often used to understand the immune response in cancer. Traditional measures of diversity rely on bulk RNA sequencing (RNAseq) of the β-chain variable regions. However, the full αβ TCR repertoire is a combination of both the α- and β-chains, which are encoded by separate genes. In contrast with bulk RNAseq, single-cell RNAseq (scRNAseq) allows paired chain analyses, yielding a more accurate measure of the repertoire. Interestingly, ∼30% of mature peripheral T cells express multiple TCR alleles (e.g., two α-chains) and may exhibit dual Ag specificity. scRNAseq has become increasingly common, and data from both human and animal studies are publicly available. However, routine workflows discard secondary TCR alleles and focus on a single TCR clone per cell. This perspectives piece emphasizes why this may not be good practice and highlights unanswered questions in the field of T cell dual specificity.
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9
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Matter AL, Liggitt D, Goverman JM. B Cells Drive MHC Class I-Restricted CD4 T Cells to Induce Spontaneous Central Nervous System Autoimmunity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:1880-1891. [PMID: 36426938 PMCID: PMC9665903 DOI: 10.4049/jimmunol.2200494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 09/15/2022] [Indexed: 12/23/2022]
Abstract
Multiple sclerosis (MS) is an inflammatory, demyelinating CNS disease believed to be mediated by CD4 T cells specific for CNS self-antigens. CD8 T cells are also implicated in MS but their function is not well understood. MS lesions are heterogeneous and may reflect variation in the contribution of different types of lymphocytes. Understanding how lymphocytes with different effector functions contribute to MS is essential to develop effective therapies. We investigated how T cells expressing an MHC class I-restricted transgenic TCR specific for myelin basic protein (MBP) contribute to CNS autoimmunity using the mouse model of MS, experimental autoimmune encephalomyelitis. Virus infection triggered cytotoxic TCR-transgenic CD8 T cells to initiate acute experimental autoimmune encephalomyelitis in an IFN-γ- and perforin-dependent manner. Unexpectedly, spontaneous CNS autoimmunity developed in the TCR-transgenic mice that was accelerated by IFN-γ-deficiency. Spontaneous disease was associated with CD4 T cells that develop via endogenous TCR rearrangements but retain specificity for the MHC class I-restricted MBP epitope. The CD4 T cells produced TNF-α without other inflammatory cytokines and caused lesions with striking similarity to active MS lesions. Surprisingly, B cells were the predominant cell type that cross-presented MBP, and their depletion halted disease progression. This work provides a new model of spontaneous CNS autoimmunity with unique similarities to MS that is mediated by T cells with a distinct effector phenotype.
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Affiliation(s)
- Aubry L. Matter
- Department of Immunology, University of Washington, Seattle, WA; and
| | - Denny Liggitt
- Department of Comparative Medicine, University of Washington, Seattle, WA
| | - Joan M. Goverman
- Department of Immunology, University of Washington, Seattle, WA; and
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10
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Are Viral Infections Key Inducers of Autoimmune Diseases? Focus on Epstein–Barr Virus. Viruses 2022; 14:v14091900. [PMID: 36146707 PMCID: PMC9506567 DOI: 10.3390/v14091900] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 08/13/2022] [Accepted: 08/19/2022] [Indexed: 12/26/2022] Open
Abstract
It is generally accepted that certain viral infections can trigger the development of autoimmune diseases. However, the exact mechanisms by which these viruses induce autoimmunity are still not understood. In this review, we first describe hypothetical mechanisms by which viruses induce some representative autoimmune diseases. Then, we focus on Epstein–Barr virus (EBV) and discuss its role in the pathogenesis of rheumatoid arthritis (RA). The discussion is mainly based on our own previous findings that (A) EBV DNA and its products EBV-encoded small RNA (EBER) and latent membrane protein 1 (LMP1) are present in the synovial lesions of RA, (B) mRNA expression of the signaling lymphocytic activation molecule-associated protein (SAP)/SH2D1A gene that plays a critical role in cellular immune responses to EBV is reduced in the peripheral T cells of patients with RA, and (C) EBV infection of mice reconstituted with human immune system components (humanized mice) induced erosive arthritis that is pathologically similar to RA. Additionally, environmental factors may contribute to EBV reactivation as follows: Porphyromonas gingivalis peptidylarginine deiminase (PAD), an enzyme required for citrullination, engenders antigens leading to the production of citrullinated peptides both in the gingiva and synovium. Anti-citrullinated peptides autoantibody is an important marker for diagnosis and disease activity of RA. These findings, as well as various results obtained by other researchers, strongly suggest that EBV is directly involved in the pathogenesis of RA, a typical autoimmune disease.
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11
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Birla P, Shaikh FY. De- "bug"-ing the microbiome in lung cancer. Cancer Metastasis Rev 2022; 41:335-346. [PMID: 35588337 DOI: 10.1007/s10555-022-10036-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 04/30/2022] [Indexed: 12/12/2022]
Abstract
The identification of microbes enriched in the healthy lung has led to the compelling discovery that microbes may contribute to lung cancer pathogenesis. Here, we review the recent literature showing microbial associations with lung cancer as well as the functional features that have been identified in human and murine studies. Most biomarker data remain limited due to variable findings. However, multiple studies have found that lung tumors or ipsilateral airway samples have decreased α diversity compared to normal tissue. Specific genera, such as Veillonella and Streptococcus, were also found in association with lung tumors using multiple sampling methodologies. These microbes, which are generally found in the upper respiratory track, are associated with an IL-17 signature in the lung, potentially resulting in a pro-tumorigenic environment. Studies detailing these immune mechanisms are limited, and further investigation is necessary to delineate how these bacteria, their metabolites, and potentially tumor-associated neoantigens modulate the immune response in cancer.
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Affiliation(s)
- Pakhi Birla
- The Bloomberg-Kimmel Institute of Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Oncology, Johns Hopkins University School of Medicine, 1650 Orleans Street CRB1 Bldg, Suite 4M 441, Baltimore, MD, 21231, USA
| | - Fyza Y Shaikh
- The Bloomberg-Kimmel Institute of Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Department of Oncology, Johns Hopkins University School of Medicine, 1650 Orleans Street CRB1 Bldg, Suite 4M 441, Baltimore, MD, 21231, USA.
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12
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An H, Eun M, Yi J, Park J. CRESSP: a comprehensive pipeline for prediction of immunopathogenic SARS-CoV-2 epitopes using structural properties of proteins. Brief Bioinform 2022; 23:6539139. [PMID: 35226074 DOI: 10.1093/bib/bbac056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/04/2022] [Accepted: 02/03/2022] [Indexed: 12/16/2022] Open
Abstract
The development of autoimmune diseases following SARS-CoV-2 infection, including multisystem inflammatory syndrome, has been reported, and several mechanisms have been suggested, including molecular mimicry. We developed a scalable, comparative immunoinformatics pipeline called cross-reactive-epitope-search-using-structural-properties-of-proteins (CRESSP) to identify cross-reactive epitopes between a collection of SARS-CoV-2 proteomes and the human proteome using the structural properties of the proteins. Overall, by searching 4 911 245 proteins from 196 352 SARS-CoV-2 genomes, we identified 133 and 648 human proteins harboring potential cross-reactive B-cell and CD8+ T-cell epitopes, respectively. To demonstrate the robustness of our pipeline, we predicted the cross-reactive epitopes of coronavirus spike proteins, which were recognized by known cross-neutralizing antibodies. Using single-cell expression data, we identified PARP14 as a potential target of intermolecular epitope spreading between the virus and human proteins. Finally, we developed a web application (https://ahs2202.github.io/3M/) to interactively visualize our results. We also made our pipeline available as an open-source CRESSP package (https://pypi.org/project/cressp/), which can analyze any two proteomes of interest to identify potentially cross-reactive epitopes between the proteomes. Overall, our immunoinformatic resources provide a foundation for the investigation of molecular mimicry in the pathogenesis of autoimmune and chronic inflammatory diseases following COVID-19.
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Affiliation(s)
- Hyunsu An
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Republic of Korea
| | - Minho Eun
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Republic of Korea
| | - Jawoon Yi
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Republic of Korea
| | - Jihwan Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Republic of Korea.,Anti-Virus Research Center, Gwangju Institute of Science and Technology (GIST), Republic of Korea.,Laboratory for cell mechanobiology, Gwangju Institute of Science and Technology (GIST), Republic of Korea
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13
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Feizi N, Focaccetti C, Pacella I, Tucci G, Rossi A, Costanza M, Pedotti R, Sidney J, Sette A, La Rocca C, Procaccini C, Matarese G, Barnaba V, Piconese S. CD8 + T cells specific for cryptic apoptosis-associated epitopes exacerbate experimental autoimmune encephalomyelitis. Cell Death Dis 2021; 12:1026. [PMID: 34716313 PMCID: PMC8556378 DOI: 10.1038/s41419-021-04310-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/12/2021] [Accepted: 09/29/2021] [Indexed: 01/20/2023]
Abstract
The autoimmune immunopathology occurring in multiple sclerosis (MS) is sustained by myelin-specific and -nonspecific CD8+ T cells. We have previously shown that, in MS, activated T cells undergoing apoptosis induce a CD8+ T cell response directed against antigens that are unveiled during the apoptotic process, namely caspase-cleaved structural proteins such as non-muscle myosin and vimentin. Here, we have explored in vivo the development and the function of the immune responses to cryptic apoptosis-associated epitopes (AEs) in a well-established mouse model of MS, experimental autoimmune encephalomyelitis (EAE), through a combination of immunization approaches, multiparametric flow cytometry, and functional assays. First, we confirmed that this model recapitulated the main findings observed in MS patients, namely that apoptotic T cells and effector/memory AE-specific CD8+ T cells accumulate in the central nervous system of mice with EAE, positively correlating with disease severity. Interestingly, we found that AE-specific CD8+ T cells were present also in the lymphoid organs of unprimed mice, proliferated under peptide stimulation in vitro, but failed to respond to peptide immunization in vivo, suggesting a physiological control of this response. However, when mice were immunized with AEs along with EAE induction, AE-specific CD8+ T cells with an effector/memory phenotype accumulated in the central nervous system, and the disease severity was exacerbated. In conclusion, we demonstrate that AE-specific autoimmunity may contribute to immunopathology in neuroinflammation.
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Affiliation(s)
- Neda Feizi
- Department of Internal Clinical Sciences, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, 00161, Rome, Italy
| | - Chiara Focaccetti
- Department of Internal Clinical Sciences, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, 00161, Rome, Italy.,Department of Human Science and Promotion of the Quality of Life, San Raffaele Roma Open University, Via di Val Cannuta 247, 00166, Rome, Italy
| | - Ilenia Pacella
- Department of Internal Clinical Sciences, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, 00161, Rome, Italy
| | - Gloria Tucci
- Department of Internal Clinical Sciences, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, 00161, Rome, Italy
| | - Alessandra Rossi
- Department of Internal Clinical Sciences, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, 00161, Rome, Italy
| | - Massimo Costanza
- Molecular Neuro-Oncology Unit, Department of Clinical Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133, Milan, Italy
| | - Rosetta Pedotti
- Molecular Neuro-Oncology Unit, Department of Clinical Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133, Milan, Italy
| | - John Sidney
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, USA
| | - Alessandro Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, USA
| | - Claudia La Rocca
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131, Naples, Italy
| | - Claudio Procaccini
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131, Naples, Italy.,Unità di Neuroimmunologia, IRCCS Fondazione Santa Lucia, 00143, Rome, Italy
| | - Giuseppe Matarese
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131, Naples, Italy.,Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II", 80131, Naples, Italy
| | - Vincenzo Barnaba
- Department of Internal Clinical Sciences, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, 00161, Rome, Italy. .,Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, 00161, Rome, Italy.
| | - Silvia Piconese
- Department of Internal Clinical Sciences, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, 00161, Rome, Italy. .,Unità di Neuroimmunologia, IRCCS Fondazione Santa Lucia, 00143, Rome, Italy. .,Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, 00161, Rome, Italy.
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14
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Fukuyama M, Ito T, Ohyama M. Alopecia areata: Current understanding of the pathophysiology and update on therapeutic approaches, featuring the Japanese Dermatological Association guidelines. J Dermatol 2021; 49:19-36. [PMID: 34709679 DOI: 10.1111/1346-8138.16207] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 12/16/2022]
Abstract
Alopecia areata (AA) is a relatively common nonscarring hairloss disease characterized by an autoimmune response to anagen hair follicles (HFs). Accumulated evidence suggests that collapse of the HF immune privilege subsequent to triggering events, represented by viral infection, leads to autoimmune response in which autoreactive cytotoxic CD8+NKG2D+ T cells mainly target exposed HF autoantigens. AA had been recognized as type 1 inflammatory disease, but recent investigations have suggested some roles of type 2- and Th17-associated mediators in AA pathogenesis. The significance of psychological stress in AA pathogenesis is less emphasized nowadays, but psychological comorbidities, such as depression and anxiety, attract greater interest in AA management. In this regard, the disease severity may not solely be evaluated by the extent of hair loss. Use of trichoscopy markedly improved the resolution of the diagnosis and evaluation of the phase of AA, which is indispensable for the optimization of treatment. For the standardization of AA management, the establishment of guidelines/expert consensus is pivotal. Indeed, the Japanese Dermatological Association (JDA) and other societies and expert groups have published guidelines/expert consensus reports, which mostly recommend intralesional/topical corticosteroid administration and contact immunotherapy as first-line treatments, depending on the age, disease severity, and activity of AA. The uniqueness of the JDA guidelines can be found in their descriptions of intravenous corticosteroid pulse therapy, antihistamines, and other miscellaneous domestically conducted treatments. Considering the relatively high incidence of spontaneous regression in mild AA and its intractability in severe subsets, the importance of course observation is also noted. Evidenced-based medicine for AA is currently limited, however, novel therapeutic approaches, represented by JAK inhibitors, are on their way for clinical application. In this review, the latest understanding of the etiopathogenesis and pathophysiology, and update on therapeutic approaches with future perspectives are summarized for AA, following the current version of the JDA AA management guidelines.
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Affiliation(s)
- Masahiro Fukuyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Taisuke Ito
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Manabu Ohyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
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15
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Parodi B, Kerlero de Rosbo N. The Gut-Brain Axis in Multiple Sclerosis. Is Its Dysfunction a Pathological Trigger or a Consequence of the Disease? Front Immunol 2021; 12:718220. [PMID: 34621267 PMCID: PMC8490747 DOI: 10.3389/fimmu.2021.718220] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/07/2021] [Indexed: 12/12/2022] Open
Abstract
A large and expending body of evidence indicates that the gut-brain axis likely plays a crucial role in neurological diseases, including multiple sclerosis (MS). As a whole, the gut-brain axis can be considered as a bi-directional multi-crosstalk pathway that governs the interaction between the gut microbiota and the organism. Perturbation in the commensal microbial population, referred to as dysbiosis, is frequently associated with an increased intestinal permeability, or "leaky gut", which allows the entrance of exogeneous molecules, in particular bacterial products and metabolites, that can disrupt tissue homeostasis and induce inflammation, promoting both local and systemic immune responses. An altered gut microbiota could therefore have significant repercussions not only on immune responses in the gut but also in distal effector immune sites such as the CNS. Indeed, the dysregulation of this bi-directional communication as a consequence of dysbiosis has been implicated as playing a possible role in the pathogenesis of neurological diseases. In multiple sclerosis (MS), the gut-brain axis is increasingly being considered as playing a crucial role in its pathogenesis, with a major focus on specific gut microbiota alterations associated with the disease. In both MS and its purported murine model, experimental autoimmune encephalomyelitis (EAE), gastrointestinal symptoms and/or an altered gut microbiota have been reported together with increased intestinal permeability. In both EAE and MS, specific components of the microbiota have been shown to modulate both effector and regulatory T-cell responses and therefore disease progression, and EAE experiments with germ-free and specific pathogen-free mice transferred with microbiota associated or not with disease have clearly demonstrated the possible role of the microbiota in disease pathogenesis and/or progression. Here, we review the evidence that can point to two possible consequences of the gut-brain axis dysfunction in MS and EAE: 1. A pro-inflammatory intestinal environment and "leaky" gut induced by dysbiosis could lead to an altered communication with the CNS through the cholinergic afferent fibers, thereby contributing to CNS inflammation and disease pathogenesis; and 2. Neuroinflammation affecting efferent cholinergic transmission could result in intestinal inflammation as disease progresses.
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Affiliation(s)
- Benedetta Parodi
- Department of Neurosciences, Rehabilitation, Ophthalmology and Maternal-Fetal Medicine (DINOGMI), University of Genoa, Genoa, Italy
| | - Nicole Kerlero de Rosbo
- Department of Neurosciences, Rehabilitation, Ophthalmology and Maternal-Fetal Medicine (DINOGMI), University of Genoa, Genoa, Italy.,TomaLab, Institute of Nanotechnology, Consiglio Nazionale delle Ricerche (CNR), Rome, Italy
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16
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Zhou P, Chen J, He J, Zheng T, Yunis J, Makota V, Alexandre YO, Gong F, Zhang X, Xie W, Li Y, Shao M, Zhu Y, Sinclair JE, Miao M, Chen Y, Short KR, Mueller SN, Sun X, Yu D, Li Z. Low-dose IL-2 therapy invigorates CD8+ T cells for viral control in systemic lupus erythematosus. PLoS Pathog 2021; 17:e1009858. [PMID: 34618873 PMCID: PMC8525737 DOI: 10.1371/journal.ppat.1009858] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 10/19/2021] [Accepted: 07/30/2021] [Indexed: 01/10/2023] Open
Abstract
Autoimmune diseases are often treated by glucocorticoids and immunosuppressive drugs that could increase the risk for infection, which in turn deteriorate disease and cause mortality. Low-dose IL-2 (Ld-IL2) therapy emerges as a new treatment for a wide range of autoimmune diseases. To examine its influence on infection, we retrospectively studied 665 patients with systemic lupus erythematosus (SLE) including about one third receiving Ld-IL2 therapy, where Ld-IL2 therapy was found beneficial in reducing the incidence of infections. In line with this clinical observation, IL-2 treatment accelerated viral clearance in mice infected with influenza A virus or lymphocytic choriomeningitis virus (LCMV). Noticeably, despite enhancing anti-viral immunity in LCMV infection, IL-2 treatment exacerbated CD8+ T cell-mediated immunopathology. In summary, Ld-IL2 therapy reduced the risk of infections in SLE patients and enhanced the control of viral infection, but caution should be taken to avoid potential CD8+ T cell-mediated immunopathology.
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Affiliation(s)
- Pengcheng Zhou
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Australia
| | - Jiali Chen
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - Jing He
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - Ting Zheng
- Laboratory of Immunology for Environment and Health, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Joseph Yunis
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Australia
| | - Victor Makota
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Yannick O. Alexandre
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Fang Gong
- Department of Laboratory Medicine, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Xia Zhang
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - Wuxiang Xie
- Peking University Clinical Research Institute, Peking University Health Science Center, Beijing, China
| | - Yuhui Li
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - Miao Shao
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - Yanshan Zhu
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Jane E. Sinclair
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Miao Miao
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - Yaping Chen
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Kirsty R. Short
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Scott N. Mueller
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Xiaolin Sun
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
| | - Di Yu
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Australia
- Laboratory of Immunology for Environment and Health, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Zhanguo Li
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China
- Peking-Tsinghua Center for Life Sciences, Beijing, China
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17
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Li B, Gong T, Hao Y, Zhou X, Cheng L. Mining the Gut Microbiota for Microbial-Based Therapeutic Strategies in Cancer Immunotherapy. Front Oncol 2021; 11:721249. [PMID: 34589427 PMCID: PMC8473692 DOI: 10.3389/fonc.2021.721249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 08/23/2021] [Indexed: 02/05/2023] Open
Abstract
The past two decades witnessed a revolution in our understanding of host–microbiota interactions that led to the concept of the super-organism consisting of a eukaryotic part and a prokaryotic part. Owing to the critical role of gut microbiota in modulating the host immune system, it is not beyond all expectations that more and more evidence indicated that the shift of gut microbiota influenced responses to numerous forms of cancer immunotherapy. Therapy targeting gut microbiota is becoming a promising strategy to improve cancer immunotherapy. In this review, we discuss the role of the gut microbiota in response to cancer immunotherapy, the mechanisms that the gut microbiota influences cancer immunotherapy, and therapeutic strategies targeting gut microbiota to improve cancer immunotherapy.
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Affiliation(s)
- Bolei Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Tao Gong
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yu Hao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, China
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18
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Hanna SJ, Tatovic D, Thayer TC, Dayan CM. Insights From Single Cell RNA Sequencing Into the Immunology of Type 1 Diabetes- Cell Phenotypes and Antigen Specificity. Front Immunol 2021; 12:751701. [PMID: 34659258 PMCID: PMC8519581 DOI: 10.3389/fimmu.2021.751701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 09/14/2021] [Indexed: 01/10/2023] Open
Abstract
In the past few years, huge advances have been made in techniques to analyse cells at an individual level using RNA sequencing, and many of these have precipitated exciting discoveries in the immunology of type 1 diabetes (T1D). This review will cover the first papers to use scRNAseq to characterise human lymphocyte phenotypes in T1D in the peripheral blood, pancreatic lymph nodes and islets. These have revealed specific genes such as IL-32 that are differentially expressed in islet -specific T cells in T1D. scRNAseq has also revealed wider gene expression patterns that are involved in T1D and can predict its development even predating autoantibody production. Single cell sequencing of TCRs has revealed V genes and CDR3 motifs that are commonly used to target islet autoantigens, although truly public TCRs remain elusive. Little is known about BCR repertoires in T1D, but scRNAseq approaches have revealed that insulin binding BCRs commonly use specific J genes, share motifs between donors and frequently demonstrate poly-reactivity. This review will also summarise new developments in scRNAseq technology, the insights they have given into other diseases and how they could be leveraged to advance research in the type 1 diabetes field to identify novel biomarkers and targets for immunotherapy.
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Affiliation(s)
- Stephanie J. Hanna
- Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Danijela Tatovic
- Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Terri C. Thayer
- Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
- Department of Biological and Chemical Sciences, School of Natural and Social Sciences, Roberts Wesleyan College, Rochester, NY, United States
| | - Colin M. Dayan
- Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
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19
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Prasad S, Sheng WS, Hu S, Chauhan P, Lokensgard JR. Dysregulated Microglial Cell Activation and Proliferation Following Repeated Antigen Stimulation. Front Cell Neurosci 2021; 15:686340. [PMID: 34447297 PMCID: PMC8383069 DOI: 10.3389/fncel.2021.686340] [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: 03/26/2021] [Accepted: 07/16/2021] [Indexed: 12/16/2022] Open
Abstract
Upon reactivation of quiescent neurotropic viruses antigen (Ag)-specific brain resident-memory CD8+ T-cells (bTRM) may respond to de novo-produced viral Ag through the rapid release of IFN-γ, which drives subsequent interferon-stimulated gene expression in surrounding microglia. Through this mechanism, a small number of adaptive bTRM may amplify responses to viral reactivation leading to an organ-wide innate protective state. Over time, this brain-wide innate immune activation likely has cumulative neurotoxic and neurocognitive consequences. We have previously shown that HIV-1 p24 Ag-specific bTRM persist within the murine brain using a heterologous prime-CNS boost strategy. In response to Ag restimulation, these bTRM display rapid and robust recall responses, which subsequently activate glial cells. In this study, we hypothesized that repeated challenges to viral antigen (Ag) (modeling repeated episodes of viral reactivation) culminate in prolonged reactive gliosis and exacerbated neurotoxicity. To address this question, mice were first immunized with adenovirus vectors expressing the HIV p24 capsid protein, followed by a CNS-boost using Pr55Gag/Env virus-like particles (HIV-VLPs). Following the establishment of the bTRM population [>30 days (d)], prime-CNS boost animals were then subjected to in vivo challenge, as well as re-challenge (at 14 d post-challenge), using the immunodominant HIV-1 AI9 CD8+ T-cell epitope peptide. In these studies, Ag re-challenge resulted in prolonged expression of microglial activation markers and an increased proliferative response, longer than the challenge group. This continued expression of MHCII and PD-L1 (activation markers), as well as Ki67 (proliferative marker), was observed at 7, 14, and 30 days post-AI9 re-challenge. Additionally, in vivo re-challenge resulted in continued production of inducible nitric oxide synthase (iNOS) with elevated levels observed at 7, 14 and 30 days post re-challenge. Interestingly, iNOS expression was significantly lower among challenged animals when compared to re-challenged groups. Furthermore, in vivo specific Ag re-challenge produced lower levels of arginase (Arg)-1 when compared with the challenged group. Taken together, these results indicate that repeated Ag-specific stimulation of adaptive immune responses leads to cumulative dysregulated microglial cell activation.
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Affiliation(s)
- Sujata Prasad
- Neurovirology Laboratory, Department of Medicine, University of Minnesota, Minneapolis, MN, United States
| | - Wen S Sheng
- Neurovirology Laboratory, Department of Medicine, University of Minnesota, Minneapolis, MN, United States
| | - Shuxian Hu
- Neurovirology Laboratory, Department of Medicine, University of Minnesota, Minneapolis, MN, United States
| | - Priyanka Chauhan
- Neurovirology Laboratory, Department of Medicine, University of Minnesota, Minneapolis, MN, United States
| | - James R Lokensgard
- Neurovirology Laboratory, Department of Medicine, University of Minnesota, Minneapolis, MN, United States
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20
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Wiles TA, Hohenstein A, Landry LG, Dang M, Powell R, Guyer P, James EA, Nakayama M, Haskins K, Delong T, Baker RL. Characterization of Human CD4 T Cells Specific for a C-Peptide/C-Peptide Hybrid Insulin Peptide. Front Immunol 2021; 12:668680. [PMID: 34113344 PMCID: PMC8185328 DOI: 10.3389/fimmu.2021.668680] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/13/2021] [Indexed: 12/12/2022] Open
Abstract
Hybrid Insulin Peptides (HIPs), which consist of insulin fragments fused to other peptides from β-cell secretory granule proteins, are CD4 T cell autoantigens in type 1 diabetes (T1D). We have studied HIPs and HIP-reactive CD4 T cells extensively in the context of the non-obese diabetic (NOD) mouse model of autoimmune diabetes and have shown that CD4 T cells specific for HIPs are major contributors to disease pathogenesis. Additionally, in the human context, HIP-reactive CD4 T cells can be found in the islets and peripheral blood of T1D patients. Here, we performed an in-depth characterization of the CD4 T cell response to a C-peptide/C-peptide HIP (HIP11) in human T1D. We identified the TCR expressed by the previously-reported HIP11-reactive CD4 T cell clone E2, which was isolated from the peripheral blood of a T1D patient, and determined that it recognizes HIP11 in the context of HLA-DQ2. We also identified a HIP11-specific TCR directly in the islets of a T1D donor and demonstrated that this TCR recognizes a different minimal epitope of HIP11 presented by HLA-DQ8. We generated and tested an HLA-DQ2 tetramer loaded with HIP11 that will enable direct ex vivo interrogation of CD4 T cell responses to HIP11 in human patients and control subjects. Using mass spectrometric analysis, we confirmed that HIP11 is present in human islets. This work represents an important step in characterizing the role of CD4 T cell responses to HIPs in human T1D.
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Affiliation(s)
- Timothy A. Wiles
- Department of Pharmaceutical Sciences, University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States
| | - Anita Hohenstein
- Department of Pharmaceutical Sciences, University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States,Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Laurie G. Landry
- Barbara Davis Center for Childhood Diabetes, University of Colorado School of Medicine, Aurora, CO, United States
| | - Mylinh Dang
- Department of Pharmaceutical Sciences, University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States
| | - Roger Powell
- Department of Pharmaceutical Sciences, University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States
| | - Perrin Guyer
- Department of Translational Research, Benaroya Research Institute at Virginia Mason, Seattle, WA, United States
| | - Eddie A. James
- Department of Translational Research, Benaroya Research Institute at Virginia Mason, Seattle, WA, United States
| | - Maki Nakayama
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States,Barbara Davis Center for Childhood Diabetes, University of Colorado School of Medicine, Aurora, CO, United States
| | - Kathryn Haskins
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Thomas Delong
- Department of Pharmaceutical Sciences, University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States
| | - Rocky L. Baker
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States,*Correspondence: Rocky L. Baker,
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21
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Iakovlev M, Faravelli S, Becskei A. Gene Families With Stochastic Exclusive Gene Choice Underlie Cell Adhesion in Mammalian Cells. Front Cell Dev Biol 2021; 9:642212. [PMID: 33996799 PMCID: PMC8117012 DOI: 10.3389/fcell.2021.642212] [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: 12/15/2020] [Accepted: 03/30/2021] [Indexed: 12/11/2022] Open
Abstract
Exclusive stochastic gene choice combines precision with diversity. This regulation enables most T-cells to express exactly one T-cell receptor isoform chosen from a large repertoire, and to react precisely against diverse antigens. Some cells express two receptor isoforms, revealing the stochastic nature of this process. A similar regulation of odorant receptors and protocadherins enable cells to recognize odors and confer individuality to cells in neuronal interaction networks, respectively. We explored whether genes in other families are expressed exclusively by analyzing single-cell RNA-seq data with a simple metric. This metric can detect exclusivity independently of the mean value and the monoallelic nature of gene expression. Chromosomal segments and gene families are more likely to express genes concurrently than exclusively, possibly due to the evolutionary and biophysical aspects of shared regulation. Nonetheless, gene families with exclusive gene choice were detected in multiple cell types, most of them are membrane proteins involved in ion transport and cell adhesion, suggesting the coordination of these two functions. Thus, stochastic exclusive expression extends beyond the prototypical families, permitting precision in gene choice to be combined with the diversity of intercellular interactions.
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22
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TCRα reporter mice reveal contribution of dual TCRα expression to T cell repertoire and function. Proc Natl Acad Sci U S A 2020; 117:32574-32583. [PMID: 33288689 DOI: 10.1073/pnas.2013188117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
It is known that a subpopulation of T cells expresses two T cell receptor (TCR) clonotypes, though the extent and functional significance of this is not established. To definitively evaluate dual TCRα cells, we generated mice with green fluorescent protein and red fluorescent protein reporters linked to TCRα, revealing that ∼16% of T cells express dual TCRs, notably higher than prior estimates. Importantly, dual TCR expression has functional consequences, as dual TCR cells predominated response to lymphocytic choriomeningitis virus infection, comprising up to 60% of virus-specific CD4+ and CD8+ T cells during acute responses. Dual receptor expression selectively influenced immune memory, as postinfection memory CD4+ populations contained significantly increased frequencies of dual TCR cells. These data reveal a previously unappreciated contribution of dual TCR cells to the immune repertoire and highlight their potential effects on immune responses.
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23
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Fluckiger A, Daillère R, Sassi M, Sixt BS, Liu P, Loos F, Richard C, Rabu C, Alou MT, Goubet AG, Lemaitre F, Ferrere G, Derosa L, Duong CPM, Messaoudene M, Gagné A, Joubert P, De Sordi L, Debarbieux L, Simon S, Scarlata CM, Ayyoub M, Palermo B, Facciolo F, Boidot R, Wheeler R, Boneca IG, Sztupinszki Z, Papp K, Csabai I, Pasolli E, Segata N, Lopez-Otin C, Szallasi Z, Andre F, Iebba V, Quiniou V, Klatzmann D, Boukhalil J, Khelaifia S, Raoult D, Albiges L, Escudier B, Eggermont A, Mami-Chouaib F, Nistico P, Ghiringhelli F, Routy B, Labarrière N, Cattoir V, Kroemer G, Zitvogel L. Cross-reactivity between tumor MHC class I-restricted antigens and an enterococcal bacteriophage. Science 2020; 369:936-942. [PMID: 32820119 DOI: 10.1126/science.aax0701] [Citation(s) in RCA: 206] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 02/28/2020] [Accepted: 06/23/2020] [Indexed: 12/28/2022]
Abstract
Intestinal microbiota have been proposed to induce commensal-specific memory T cells that cross-react with tumor-associated antigens. We identified major histocompatibility complex (MHC) class I-binding epitopes in the tail length tape measure protein (TMP) of a prophage found in the genome of the bacteriophage Enterococcus hirae Mice bearing E. hirae harboring this prophage mounted a TMP-specific H-2Kb-restricted CD8+ T lymphocyte response upon immunotherapy with cyclophosphamide or anti-PD-1 antibodies. Administration of bacterial strains engineered to express the TMP epitope improved immunotherapy in mice. In renal and lung cancer patients, the presence of the enterococcal prophage in stools and expression of a TMP-cross-reactive antigen by tumors correlated with long-term benefit of PD-1 blockade therapy. In melanoma patients, T cell clones recognizing naturally processed cancer antigens that are cross-reactive with microbial peptides were detected.
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Affiliation(s)
- Aurélie Fluckiger
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Institut National de la Santé et de la Recherche Médicale, U1015, Institut Gustave Roussy, Villejuif, France
| | - Romain Daillère
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Institut National de la Santé et de la Recherche Médicale, U1015, Institut Gustave Roussy, Villejuif, France.,everImmune, Gustave Roussy Cancer Center, Villejuif, France
| | - Mohamed Sassi
- Université Rennes 1, Laboratoire de Biochimie Pharmaceutique, Inserm U1230 - UPRES EA 2311, Rennes, France
| | - Barbara Susanne Sixt
- Laboratory for Molecular Infection Medicine Sweden, Umeå Centre for Microbial Research, Department of Molecular Biology, Umeå University, 90187, Umeå, Sweden.,Cell Biology and Metabolomics Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,INSERM U1138, Paris, France.,Université de Paris, Paris, France.,Sorbonne Université, Paris, France
| | - Peng Liu
- Cell Biology and Metabolomics Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,INSERM U1138, Paris, France.,Université de Paris, Paris, France.,Sorbonne Université, Paris, France
| | - Friedemann Loos
- Cell Biology and Metabolomics Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,INSERM U1138, Paris, France.,Université de Paris, Paris, France.,Sorbonne Université, Paris, France
| | - Corentin Richard
- Research Platform in Biological Oncology, Dijon, France.,GIMI Genetic and Immunology Medical Institute, Dijon, France.,University of Burgundy-Franche Comté, Dijon, France
| | - Catherine Rabu
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France.,LabEx IGO "Immunotherapy, Graft, Oncology," Nantes, France
| | - Maryam Tidjani Alou
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Institut National de la Santé et de la Recherche Médicale, U1015, Institut Gustave Roussy, Villejuif, France.,UMR MEPHI, Aix-Marseille Université, IRD, AP-HM, Institut Hospitalo-Universitaire Méditerranée-Infection, 19-21 Boulevard Jean Moulin, 13385, Marseille cedex 05, France
| | - Anne-Gaëlle Goubet
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Institut National de la Santé et de la Recherche Médicale, U1015, Institut Gustave Roussy, Villejuif, France
| | - Fabien Lemaitre
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,everImmune, Gustave Roussy Cancer Center, Villejuif, France
| | - Gladys Ferrere
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Institut National de la Santé et de la Recherche Médicale, U1015, Institut Gustave Roussy, Villejuif, France
| | - Lisa Derosa
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Institut National de la Santé et de la Recherche Médicale, U1015, Institut Gustave Roussy, Villejuif, France.,Université Paris-Saclay, Villejuif, F-94805, France
| | - Connie P M Duong
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Institut National de la Santé et de la Recherche Médicale, U1015, Institut Gustave Roussy, Villejuif, France
| | - Meriem Messaoudene
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Research Center and Department of Cytology and Pathology, Québec City, Québec, Canada
| | - Andréanne Gagné
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Research Center and Department of Cytology and Pathology, Québec City, Québec, Canada
| | - Philippe Joubert
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Research Center and Department of Cytology and Pathology, Québec City, Québec, Canada
| | - Luisa De Sordi
- Bacteriophage, Bacterium, Host Laboratory, Institut Pasteur, F-75015 Paris, France.,Sorbonne Université, Centre de Recherche Saint Antoine, INSERM UMRS_938, Paris, France
| | - Laurent Debarbieux
- Bacteriophage, Bacterium, Host Laboratory, Institut Pasteur, F-75015 Paris, France
| | - Sylvain Simon
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France.,LabEx IGO "Immunotherapy, Graft, Oncology," Nantes, France
| | - Clara-Maria Scarlata
- Cancer Research Centre of Toulouse, INSERM UMR 1037, 31037 Toulouse, France; Université Toulouse III Paul Sabatier, 31330 Toulouse, France; Institut Universitaire du Cancer de Toulouse-Oncopole, 31100 Toulouse, France
| | - Maha Ayyoub
- Cancer Research Centre of Toulouse, INSERM UMR 1037, 31037 Toulouse, France; Université Toulouse III Paul Sabatier, 31330 Toulouse, France; Institut Universitaire du Cancer de Toulouse-Oncopole, 31100 Toulouse, France
| | - Belinda Palermo
- Unit of Tumor Immunology and Immunotherapy, Department of Research, Advanced Diagnostics and Technological Innovation, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Francesco Facciolo
- Thoracic Surgery Unit, Department of Surgical Oncology, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Romain Boidot
- Unit of Molecular Biology, Department of Biology and Pathology of Tumors, Georges-François Leclerc Anticancer Center, UNICANCER, Dijon, France
| | - Richard Wheeler
- Institut Pasteur, Unit Biology and Genetics of the Bacterial Cell Wall, Paris, France
| | - Ivo Gomperts Boneca
- Institut Pasteur, Unit Biology and Genetics of the Bacterial Cell Wall, Paris, France
| | - Zsofia Sztupinszki
- Computational Health Informatics Program (CHIP), Boston Children's Hospital, Boston, MA, USA
| | - Krisztian Papp
- Department of Physics of Complex Systems, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Istvan Csabai
- Department of Physics of Complex Systems, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Edoardo Pasolli
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
| | - Nicola Segata
- Department CIBIO, University of Trento, Trento, Italy
| | - Carlos Lopez-Otin
- Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,INSERM U1138, Paris, France.,Université de Paris, Paris, France.,Sorbonne Université, Paris, France.,Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
| | - Zoltan Szallasi
- Computational Health Informatics Program (CHIP), Boston Children's Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA.,Danish Cancer Society Research Center, Copenhagen, Denmark.,MTA-SE-NAP, Brain Metastasis Research Group, 2nd Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Fabrice Andre
- Department of Cancer Medicine, Breast Cancer Committee, Gustave Roussy, Villejuif, France.,INSERM Unit 981, Gustave Roussy, Villejuif, France
| | - Valerio Iebba
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Institut National de la Santé et de la Recherche Médicale, U1015, Institut Gustave Roussy, Villejuif, France.,Department of Medical Sciences, University of Trieste, 34137 Trieste, Italy
| | - Valentin Quiniou
- AP-HP, Hôpital Pitié-Salpêtrière, Clinical Investigation Center in Biotherapy (CIC-BTi) and Immunology-Inflammation-Infectiology and Dermatology Department (3iD), F-75651, Paris, France.,Sorbonne Université, INSERM, Immunology-Immunopathology-Immunotherapy (i3), F-75651, Paris, France
| | - David Klatzmann
- AP-HP, Hôpital Pitié-Salpêtrière, Clinical Investigation Center in Biotherapy (CIC-BTi) and Immunology-Inflammation-Infectiology and Dermatology Department (3iD), F-75651, Paris, France.,Sorbonne Université, INSERM, Immunology-Immunopathology-Immunotherapy (i3), F-75651, Paris, France
| | - Jacques Boukhalil
- UMR MEPHI, Aix-Marseille Université, IRD, AP-HM, Institut Hospitalo-Universitaire Méditerranée-Infection, 19-21 Boulevard Jean Moulin, 13385, Marseille cedex 05, France
| | - Saber Khelaifia
- UMR MEPHI, Aix-Marseille Université, IRD, AP-HM, Institut Hospitalo-Universitaire Méditerranée-Infection, 19-21 Boulevard Jean Moulin, 13385, Marseille cedex 05, France
| | - Didier Raoult
- UMR MEPHI, Aix-Marseille Université, IRD, AP-HM, Institut Hospitalo-Universitaire Méditerranée-Infection, 19-21 Boulevard Jean Moulin, 13385, Marseille cedex 05, France
| | - Laurence Albiges
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Department of Medical Oncology, Gustave Roussy, Villejuif, France
| | - Bernard Escudier
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Department of Medical Oncology, Gustave Roussy, Villejuif, France.,INSERM U981, GRCC, Villejuif, France
| | - Alexander Eggermont
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.,Princess Maxima Center, CS 3584 Utrecht, the Netherlands
| | - Fathia Mami-Chouaib
- INSERM UMR 1186, Integrative Tumor Immunology and Immunotherapy, Gustave Roussy, Fac. de Médecine - Univ. Paris-Sud, Université Paris-Saclay, 94805, Villejuif, France
| | - Paola Nistico
- Unit of Tumor Immunology and Immunotherapy, Department of Research, Advanced Diagnostics and Technological Innovation, IRCCS Regina Elena National Cancer Institute, Rome, Italy.,Thoracic Surgery Unit, Department of Surgical Oncology, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | | | - Bertrand Routy
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Research Center and Department of Cytology and Pathology, Québec City, Québec, Canada.,Division d'Hémato-Oncologie, Département de Médicine, Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Nathalie Labarrière
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France.,LabEx IGO "Immunotherapy, Graft, Oncology," Nantes, France
| | - Vincent Cattoir
- Université Rennes 1, Laboratoire de Biochimie Pharmaceutique, Inserm U1230 - UPRES EA 2311, Rennes, France.,CHU de Rennes - Hôpital Ponchaillou, Service de Bactériologie-Hygiène Hospitalière, Rennes, France.,CNR de la Résistance aux Antibiotiques (laboratoire associé 'Entérocoques'), Rennes, France
| | - Guido Kroemer
- Cell Biology and Metabolomics Platforms, Gustave Roussy Cancer Campus, Villejuif, France. .,Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,INSERM U1138, Paris, France.,Université de Paris, Paris, France.,Sorbonne Université, Paris, France.,Pôle de Biologie, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, France.,Department of Women's and Children's Health, Karolinska University Hospital, 1 Stockholm, Sweden.,Suzhou Institute for Systems Biology, Chinese Academy of Medical Sciences, Suzhou, China.,Institut Universitaire de France, Paris, France
| | - Laurence Zitvogel
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France. .,Institut National de la Santé et de la Recherche Médicale, U1015, Institut Gustave Roussy, Villejuif, France.,Université Paris-Saclay, Villejuif, F-94805, France.,Suzhou Institute for Systems Biology, Chinese Academy of Medical Sciences, Suzhou, China
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24
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Robust Iterative Stimulation with Self-Antigens Overcomes CD8 + T Cell Tolerance to Self- and Tumor Antigens. Cell Rep 2020; 28:3092-3104.e5. [PMID: 31533033 PMCID: PMC6874401 DOI: 10.1016/j.celrep.2019.08.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/24/2019] [Accepted: 08/09/2019] [Indexed: 12/16/2022] Open
Abstract
The immune system adapts to constitutive antigens to preserve self-tolerance, which is a major barrier for anti-tumor immunity. Antigen-specific reversal of tolerance constitutes a major goal to spur therapeutic applications. Here, we show that robust, iterative, systemic stimulation targeting tissue-specific antigens in the context of acute infections reverses established CD8+ T cell tolerance to self, including in T cells that survive negative selection. This strategy results in large numbers of circulating and resident memory self-specific CD8+ T cells that are widely distributed and can be co-opted to control established malignancies bearing self-antigen without concomitant autoimmunity. Targeted expansion of both self- and tumor neoantigen-specific T cells acts synergistically to boost anti-tumor immunity and elicits protection against aggressive melanoma. Our findings demonstrate that T cell tolerance can be re-adapted to responsiveness through robust antigenic exposure, generating self-specific CD8+ T cells that can be used for cancer treatment.
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25
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Lees JR. CD8+ T cells: The past and future of immune regulation. Cell Immunol 2020; 357:104212. [PMID: 32979764 DOI: 10.1016/j.cellimm.2020.104212] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/16/2020] [Accepted: 09/01/2020] [Indexed: 02/05/2023]
Abstract
Regulation of the adaptive immune response is critical for health. Regulatory activity can be found in multiple components of the immune system, however, the focus on particular components of the immune regulatory network has left many aspects of this critical immune component understudied. Here we review the evidence for activities of CD8+ T cells in immune homeostasis and regulation of autoimmune reactivity. The heterogeneous nature of identified CD8+ cell types are examined, and common phenotypes associated with functional activities are defined. The varying types of antigen signal crucial for CD8+ T cell regulatory activity are identified and the implications of these activation pathways for control of adaptive responses is considered. Finally, the promising capacity for transgenic antigen receptor directed cytotoxicity as a mechanism for modulation of autoimmunity is detailed.
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Affiliation(s)
- Jason R Lees
- Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States.
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26
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Kumar A, Suryadevara NC, Wolf KJ, Wilson JT, Di Paolo RJ, Brien JD, Joyce S. Heterotypic immunity against vaccinia virus in an HLA-B*07:02 transgenic mousepox infection model. Sci Rep 2020; 10:13167. [PMID: 32759969 PMCID: PMC7406653 DOI: 10.1038/s41598-020-69897-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/13/2020] [Indexed: 12/25/2022] Open
Abstract
Vaccination with vaccinia virus (VACV) elicits heterotypic immunity to smallpox, monkeypox, and mousepox, the mechanistic basis for which is poorly understood. It is generally assumed that heterotypic immunity arises from the presentation of a wide array of VACV-derived, CD8+ T cell epitopes that share homology with other poxviruses. Herein this assumption was tested using a large panel of VACV-derived peptides presented by HLA-B*07:02 (B7.2) molecules in a mousepox/ectromelia virus (ECTV)-infection, B7.2 transgenic mouse model. Most dominant epitopes recognized by ECTV- and VACV-reactive CD8+ T cells overlapped significantly without altering immunodominance hierarchy. Further, several epitopes recognized by ECTV-reactive CD8+ T cells were not recognized by VACV-reactive CD8+ T cells, and vice versa. In one instance, the lack of recognition owed to a N72K variation in the ECTV C4R70–78 variant of the dominant VACV B8R70–78 epitope. C4R70–78 does not bind to B7.2 and, hence, it was neither immunogenic nor antigenic. These findings provide a mechanistic basis for VACV vaccination-induced heterotypic immunity which can protect against Variola and Monkeypox disease. The understanding of how cross-reactive responses develop is essential for the rational design of a subunit-based vaccine that would be safe, and effectively protect against heterologous infection.
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Affiliation(s)
- Amrendra Kumar
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN, USA.,Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Centre, Nashville, TN, USA
| | - Naveen Chandra Suryadevara
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN, USA.,Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Centre, Nashville, TN, USA
| | - Kyle J Wolf
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - John T Wilson
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
| | - Richard J Di Paolo
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - James D Brien
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Sebastian Joyce
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN, USA. .,Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Centre, Nashville, TN, USA.
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27
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Wagner CA, Roqué PJ, Mileur TR, Liggitt D, Goverman JM. Myelin-specific CD8+ T cells exacerbate brain inflammation in CNS autoimmunity. J Clin Invest 2020; 130:203-213. [PMID: 31573979 DOI: 10.1172/jci132531] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 09/25/2019] [Indexed: 12/20/2022] Open
Abstract
Multiple sclerosis (MS) is an inflammatory, demyelinating disease of the CNS. Although CD4+ T cells are implicated in MS pathogenesis and have been the main focus of MS research using the animal model experimental autoimmune encephalomyelitis (EAE), substantial evidence from patients with MS points to a role for CD8+ T cells in disease pathogenesis. We previously showed that an MHC class I-restricted epitope of myelin basic protein (MBP) is presented in the CNS during CD4+ T cell-initiated EAE. Here, we investigated whether naive MBP-specific CD8+ T cells recruited to the CNS during CD4+ T cell-initiated EAE engaged in determinant spreading and influenced disease. We found that the MBP-specific CD8+ T cells exacerbated brain but not spinal cord inflammation. We show that a higher frequency of monocytes and monocyte-derived cells presented the MHC class I-restricted MBP ligand in the brain compared with the spinal cord. Infiltration of MBP-specific CD8+ T cells enhanced ROS production in the brain only in these cell types and only when the MBP-specific CD8+ T cells expressed Fas ligand (FasL). These results suggest that myelin-specific CD8+ T cells may contribute to disease pathogenesis via a FasL-dependent mechanism that preferentially promotes lesion formation in the brain.
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Affiliation(s)
| | | | | | - Denny Liggitt
- Department of Comparative Medicine, University of Washington, Seattle, Washington, USA
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28
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Steinbach K, Vincenti I, Egervari K, Kreutzfeldt M, van der Meer F, Page N, Klimek B, Rossitto-Borlat I, Di Liberto G, Muschaweckh A, Wagner I, Hammad K, Stadelmann C, Korn T, Hartley O, Pinschewer DD, Merkler D. Brain-resident memory T cells generated early in life predispose to autoimmune disease in mice. Sci Transl Med 2020; 11:11/498/eaav5519. [PMID: 31243152 DOI: 10.1126/scitranslmed.aav5519] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 01/13/2019] [Accepted: 04/25/2019] [Indexed: 12/17/2022]
Abstract
Epidemiological studies associate viral infections during childhood with the risk of developing autoimmune disease during adulthood. However, the mechanistic link between these events remains elusive. We report that transient viral infection of the brain in early life, but not at a later age, precipitates brain autoimmune disease elicited by adoptive transfer of myelin-specific CD4+ T cells at sites of previous infection in adult mice. Early-life infection of mouse brains imprinted a chronic inflammatory signature that consisted of brain-resident memory T cells expressing the chemokine (C-C motif) ligand 5 (CCL5). Blockade of CCL5 signaling via C-C chemokine receptor type 5 prevented the formation of brain lesions in a mouse model of autoimmune disease. In mouse and human brain, CCL5+ TRM were located predominantly to sites of microglial activation. This study uncovers how transient brain viral infections in a critical window in life might leave persisting chemotactic cues and create a long-lived permissive environment for autoimmunity.
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Affiliation(s)
- Karin Steinbach
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland
| | - Ilena Vincenti
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland
| | - Kristof Egervari
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland.,Division of Clinical Pathology, Geneva University Hospital, 1211 Geneva, Switzerland
| | - Mario Kreutzfeldt
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland.,Division of Clinical Pathology, Geneva University Hospital, 1211 Geneva, Switzerland
| | - Franziska van der Meer
- Department of Neuropathology, University of Göttingen Medical Center, 37075 Göttingen, Germany
| | - Nicolas Page
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland
| | - Bogna Klimek
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland
| | - Irène Rossitto-Borlat
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland
| | - Giovanni Di Liberto
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland
| | - Andreas Muschaweckh
- Klinikum rechts der Isar, Department of Experimental Neuroimmunology, Technical University Munich, 81675 Munich, Germany
| | - Ingrid Wagner
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland
| | - Karim Hammad
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland
| | - Christine Stadelmann
- Department of Neuropathology, University of Göttingen Medical Center, 37075 Göttingen, Germany
| | - Thomas Korn
- Klinikum rechts der Isar, Department of Experimental Neuroimmunology, Technical University Munich, 81675 Munich, Germany.,Munich Cluster of Systems Neurology (SyNergy), 80539 Munich, Germany
| | - Oliver Hartley
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland.,Mintaka Foundation for Medical Research, 1205 Geneva, Switzerland
| | - Daniel D Pinschewer
- Department of Biomedicine-Haus Petersplatz, University of Basel, 4031 Basel, Switzerland
| | - Doron Merkler
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland. .,Division of Clinical Pathology, Geneva University Hospital, 1211 Geneva, Switzerland
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29
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CSF levels of myelin basic protein in pediatric patients with ventriculoperitoneal shunt infection. Cent Eur J Immunol 2020; 45:48-55. [PMID: 32425679 PMCID: PMC7226547 DOI: 10.5114/ceji.2020.94682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/03/2019] [Indexed: 11/17/2022] Open
Abstract
Introduction Hydrocephalus is a common disorder of the central nervous system (CNS) in the pediatric population. Surgical treatment options involve ventriculoperitoneal shunt (VPS) placement. VPS infection is the most common complication of surgically treated hydrocephalus in pediatric patients [1, 2],which may lead to neuronal damage. Myelin basic protein (MBP) has been proposed as a marker of neuronal injury in a variety of contexts, and MBP levels in the cerebrospinal fluid (CSF) may be used to assess the severity of neuronal damage [1, 3, 4]. Therefore, the aim of this study was to evaluate the CSF level of myelin basic protein (MBP) in a group of pediatric patients with VPS infection. Material and methods Thirty CSF samples were collected from pediatric patients with VPS infection. CSF levels of MBP were measured at three time points, marked by contamination detection, obtention of the first sterile CSF culture, and VPS shunt implantation. The collected data were compared with those of the control group composed of children with active congenital hydrocephalus and valid CSF values. Results The MBP level in the study group was higher than the corresponding control values in the second and third measurements. The highest MBP level was reached in the study group in the second and third measurements. Conclusions The lack of normalization of MBP level in the CSF of children with shunt infection could be connected with ongoing brain damage. It takes longer than the normalization of CSF protein level and pleocytosis. The delay is associated with a prolonged reaction of the immunological system.
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Carter JA, Preall JB, Atwal GS. Bayesian Inference of Allelic Inclusion Rates in the Human T Cell Receptor Repertoire. Cell Syst 2019; 9:475-482.e4. [PMID: 31677971 DOI: 10.1016/j.cels.2019.09.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 08/04/2019] [Accepted: 09/17/2019] [Indexed: 01/09/2023]
Abstract
A small population of αβ T cells is characterized by the expression of more than one unique T cell receptor (TCR); this outcome is the result of "allelic inclusion," that is, inclusion of both α- or β-chain alleles during V(D)J recombination. Limitations in single-cell sequencing technology, however, have precluded comprehensive enumeration of these dual receptor T cells. Here, we develop and experimentally validate a fully Bayesian inference model capable of reliably estimating the true rate of α and β TCR allelic inclusion across two different emulsion-barcoding single-cell sequencing platforms. We provide a database composed of over 51,000 previously unpublished allelic inclusion TCR sequence sets drawn from eight healthy individuals and show that allelic inclusion contributes a distinct and functionally important set of sequences to the human TCR repertoire. This database and a Python implementation of our statistical inference model are freely available at our Github repository (https://github.com/JasonACarter/Allelic_inclusion).
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Affiliation(s)
- Jason A Carter
- Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, NY 11794, USA; Cold Spring Harbor Laboratory, Cold Spring Harbor, Stony Brook, NY 11724, USA.
| | - Jonathan B Preall
- Cold Spring Harbor Laboratory, Cold Spring Harbor, Stony Brook, NY 11724, USA
| | - Gurinder S Atwal
- Cold Spring Harbor Laboratory, Cold Spring Harbor, Stony Brook, NY 11724, USA.
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31
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Nudel R, Wang Y, Appadurai V, Schork AJ, Buil A, Agerbo E, Bybjerg-Grauholm J, Børglum AD, Daly MJ, Mors O, Hougaard DM, Mortensen PB, Werge T, Nordentoft M, Thompson WK, Benros ME. A large-scale genomic investigation of susceptibility to infection and its association with mental disorders in the Danish population. Transl Psychiatry 2019; 9:283. [PMID: 31712607 PMCID: PMC6848113 DOI: 10.1038/s41398-019-0622-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/06/2019] [Accepted: 10/03/2019] [Indexed: 12/17/2022] Open
Abstract
Infections and mental disorders are two of the major global disease burdens. While correlations between mental disorders and infections have been reported, the possible genetic links between them have not been assessed in large-scale studies. Moreover, the genetic basis of susceptibility to infection is largely unknown, as large-scale genome-wide association studies of susceptibility to infection have been lacking. We utilized a large Danish population-based sample (N = 65,534) linked to nationwide population-based registers to investigate the genetic architecture of susceptibility to infection (heritability estimation, polygenic risk analysis, and a genome-wide association study (GWAS)) and examined its association with mental disorders (comorbidity analysis and genetic correlation). We found strong links between having at least one psychiatric diagnosis and the occurrence of infection (P = 2.16 × 10-208, OR = 1.72). The SNP heritability of susceptibility to infection ranged from ~2 to ~7% in samples of differing psychiatric diagnosis statuses (suggesting the environment as a major contributor to susceptibility), and polygenic risk scores moderately but significantly explained infection status in an independent sample. We observed a genetic correlation of 0.496 (P = 2.17 × 10-17) between a diagnosis of infection and a psychiatric diagnosis. While our GWAS did not identify genome-wide significant associations, we found 90 suggestive (P ≤ 10-5) associations for susceptibility to infection. Our findings suggest a genetic component in susceptibility to infection and indicate that the occurrence of infections in individuals with mental illness may be in part genetically driven.
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Affiliation(s)
- Ron Nudel
- Institute of Biological Psychiatry, Mental Health Centre Sct. Hans, Mental Health Services Copenhagen, Roskilde, Denmark
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
| | - Yunpeng Wang
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Vivek Appadurai
- Institute of Biological Psychiatry, Mental Health Centre Sct. Hans, Mental Health Services Copenhagen, Roskilde, Denmark
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
| | - Andrew J Schork
- Institute of Biological Psychiatry, Mental Health Centre Sct. Hans, Mental Health Services Copenhagen, Roskilde, Denmark
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
| | - Alfonso Buil
- Institute of Biological Psychiatry, Mental Health Centre Sct. Hans, Mental Health Services Copenhagen, Roskilde, Denmark
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
| | - Esben Agerbo
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- National Center for Register-Based Research, Aarhus University, Aarhus, Denmark
- CIRRAU-Center for Integrated Register-based Research, Aarhus University, Aarhus, Denmark
| | - Jonas Bybjerg-Grauholm
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- Center for Neonatal Screening, Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Anders D Børglum
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- Department of Biomedicine, Aarhus University and Centre for Integrative Sequencing, iSEQ, Aarhus, Denmark
- Aarhus Genome Center, Aarhus, Denmark
| | - Mark J Daly
- Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Ole Mors
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- Psychosis Research Unit, Aarhus University Hospital, Risskov, Denmark
| | - David M Hougaard
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- Center for Neonatal Screening, Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - Preben B Mortensen
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- National Center for Register-Based Research, Aarhus University, Aarhus, Denmark
| | - Thomas Werge
- Institute of Biological Psychiatry, Mental Health Centre Sct. Hans, Mental Health Services Copenhagen, Roskilde, Denmark
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Merete Nordentoft
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Mental Health Centre Copenhagen, Copenhagen University Hospital, Copenhagen, Denmark
| | - Wesley K Thompson
- Institute of Biological Psychiatry, Mental Health Centre Sct. Hans, Mental Health Services Copenhagen, Roskilde, Denmark
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark
- Department of Family Medicine and Public Health, Division of Biostatistics, University of California, San Diego, CA, USA
| | - Michael E Benros
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus V, Denmark.
- Mental Health Centre Copenhagen, Copenhagen University Hospital, Copenhagen, Denmark.
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32
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Lassmann H. Pathology of inflammatory diseases of the nervous system: Human disease versus animal models. Glia 2019; 68:830-844. [PMID: 31605512 PMCID: PMC7065008 DOI: 10.1002/glia.23726] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 07/12/2019] [Accepted: 07/16/2019] [Indexed: 12/11/2022]
Abstract
Numerous recent studies have been performed to elucidate the function of microglia, macrophages, and astrocytes in inflammatory diseases of the central nervous system. Regarding myeloid cells a core pattern of activation has been identified, starting with the activation of resident homeostatic microglia followed by recruitment of blood borne myeloid cells. An initial state of proinflammatory activation is at later stages followed by a shift toward an‐anti‐inflammatory and repair promoting phenotype. Although this core pattern is similar between experimental models and inflammatory conditions in the human brain, there are important differences. Even in the normal human brain a preactivated microglia phenotype is evident, and there are disease specific and lesion stage specific differences in the contribution between resident and recruited myeloid cells and their lesion state specific activation profiles. Reasons for these findings reside in species related differences and in differential exposure to different environmental cues. Most importantly, however, experimental rodent studies on brain inflammation are mainly focused on autoimmune encephalomyelitis, while there is a very broad spectrum of human inflammatory diseases of the central nervous system, triggered and propagated by a variety of different immune mechanisms.
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Affiliation(s)
- Hans Lassmann
- Institut fur Hirnforschung, Medical University of Vienna, Wien, Austria
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33
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Soon CF, Zhang S, Suneetha PV, Antunes DA, Manns MP, Raha S, Schultze-Florey C, Prinz I, Wedemeyer H, Sällberg Chen M, Cornberg M. Hepatitis E Virus (HEV)-Specific T Cell Receptor Cross-Recognition: Implications for Immunotherapy. Front Immunol 2019; 10:2076. [PMID: 31552033 PMCID: PMC6738269 DOI: 10.3389/fimmu.2019.02076] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 08/16/2019] [Indexed: 12/26/2022] Open
Abstract
T cell immunotherapy is a concept developed for the treatment of cancer and infectious diseases, based on cytotoxic T lymphocytes to target tumor- or pathogen-specific antigens. Antigen-specificity of the T cell receptors (TCRs) is an important selection criterion in the developmental design of immunotherapy. However, off-target specificity is a possible autoimmunity concern if the engineered antigen-specific T cells are cross-reacting to self-peptides in-vivo. In our recent work, we identified several hepatitis E virus (HEV)-specific TCRs as potential candidates to be developed into T cell therapy to treat chronic hepatitis E. One of the identified TCRs, targeting a HLA-A2-restricted epitope at the RNA-dependent RNA polymerase (HEV-1527: LLWNTVWNM), possessed a unique multiple glycine motif in the TCR-β CDR3, which might be a factor inducing cross-reactivity. The aim of our study was to explore if this TCR could cross-recognize self-peptides to underlay autoimmunity. Indeed, we found that this HEV-1527-specific TCR could also cross-recognize an apoptosis-related epitope, Nonmuscle Myosin Heavy Chain 9 (MYH9-478: QLFNHTMFI). While this TCR had dual specificities to both viral epitope and a self-antigen by double Dextramer binding, it was selectively functional against HEV-1527 but not activated against MYH9-478. The consecutive glycine motif in β chain may be the reason promoting TCR binding promiscuity to recognize a secondary target, thereby facilitating cross-recognition. In conclusion, candidate TCRs for immunotherapy development should be screened for autoimmune potential, especially when the TCRs exhibit unique sequence pattern.
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Affiliation(s)
- Chai Fen Soon
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hanover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hanover, Germany
| | - Shihong Zhang
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hanover, Germany
| | | | | | - Michael Peter Manns
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hanover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hanover, Germany
| | - Solaiman Raha
- Hannover Medical School, Institute of Immunology, Hanover, Germany
| | - Christian Schultze-Florey
- Hannover Medical School, Institute of Immunology, Hanover, Germany.,Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hanover, Germany
| | - Immo Prinz
- Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hanover, Germany.,Hannover Medical School, Institute of Immunology, Hanover, Germany
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hanover, Germany.,German Center for Infection Research, Partner Site Hannover-Braunschweig, Hanover, Germany.,Department of Gastroenterology and Hepatology, University Clinic Essen, Essen, Germany
| | - Margaret Sällberg Chen
- Department of Dental Medicine and Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.,Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Markus Cornberg
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hanover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hanover, Germany.,German Center for Infection Research, Partner Site Hannover-Braunschweig, Hanover, Germany.,Centre for Individualised Infection Medicine, Hanover, Germany.,Helmholtz Centre for Infection Research, Braunschweig, Germany
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34
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Rahmanzadeh R, Brück W, Minagar A, Sahraian MA. Multiple sclerosis pathogenesis: missing pieces of an old puzzle. Rev Neurosci 2019; 30:67-83. [PMID: 29883325 DOI: 10.1515/revneuro-2018-0002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 03/30/2018] [Indexed: 11/15/2022]
Abstract
Traditionally, multiple sclerosis (MS) was considered to be a CD4 T cell-mediated CNS autoimmunity, compatible with experimental autoimmune encephalitis model, which can be characterized by focal lesions in the white matter. However, studies of recent decades revealed several missing pieces of MS puzzle and showed that MS pathogenesis is more complex than the traditional view and may include the following: a primary degenerative process (e.g. oligodendroglial pathology), generalized abnormality of normal-appearing brain tissue, pronounced gray matter pathology, involvement of innate immunity, and CD8 T cells and B cells. Here, we review these findings and discuss their implications in MS pathogenesis.
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Affiliation(s)
- Reza Rahmanzadeh
- MS Research Center, Neuroscience Institute, Tehran University of Medical Science, Department of Neurology, Sina Hospital, 1136746911 Tehran, Iran
| | - Wolfgang Brück
- Institute of Neuropathology, University Medical Center, D-37075 Göttingen, Germany
| | - Alireza Minagar
- Department of Neurology, LSU Health Sciences Center, Shreveport, LA 71130, USA
| | - Mohammad Ali Sahraian
- MS Research Center, Neuroscience Institute, Tehran University of Medical Science, Department of Neurology, Sina Hospital, 1136746911 Tehran, Iran.,Iranian Center for Neurological Research, Neuroscience Institute, Tehran University of Medical Science, 1136746890 Tehran, Iran
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35
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The proteasome activator REGγ counteracts immunoproteasome expression and autoimmunity. J Autoimmun 2019; 103:102282. [PMID: 31171475 DOI: 10.1016/j.jaut.2019.05.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 05/10/2019] [Accepted: 05/14/2019] [Indexed: 11/20/2022]
Abstract
For quite a long time, the 11S proteasome activator REGɑ and REGβ, but not REGγ, are known to control immunoproteasome and promote antigen processing. Here, we demonstrate that REGγ functions as an inhibitor for immunoproteasome and autoimmune disease. Depletion of REGγ promotes MHC class I-restricted presentation to prime CD8+ T cells in vitro and in vivo. Mice deficient for REGγ have elevation of CD8+ T cells and DCs, and develop age-related spontaneous autoimmune symptoms. Mechanistically, REGγ specifically interacts with phosphorylated STAT3 and promotes its degradation in vitro and in cells. Inhibition of STAT3 dramatically attenuates levels of LMP2/LMP7 and antigen presentation in cells lacking REGγ. Importantly, treatment with STAT3 or LMP2/7 inhibitor prevented accumulation of immune complex in REGγ-/- kidney. Moreover, REGγ-/- mice also expedites Pristane-induced lupus. Bioinformatics and immunohistological analyses of clinical samples have correlated lower expression of REGγ with enhanced expression of phosphorylated STAT3, LMP2 and LMP7 in human Lupus Nephritis. Collectively, our results support the concept that REGγ is a new regulator of immunoproteasome to balance autoimmunity.
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36
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Sánchez-Ruiz M, Polakos NK, Blau T, Utermöhlen O, Brunn A, Montesinos-Rongen M, Hünig T, Deckert M. TLR signals license CD8 T cells to destroy oligodendrocytes expressing an antigen shared with a Listeria pathogen. Eur J Immunol 2019; 49:413-427. [PMID: 30666625 DOI: 10.1002/eji.201847834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/22/2018] [Accepted: 01/15/2019] [Indexed: 12/18/2022]
Abstract
Increasing evidence suggests a role of CD8 T cells in autoimmune demyelinating CNS disease, which, however, is still controversially discussed. Mice, which express ovalbumin (OVA) as cytosolic self-antigen in oligodendrocytes (ODC-OVA mice), respond to CNS infection induced by OVA-expressing attenuated Listeria with CD8 T cell-mediated inflammatory demyelination. This model is suitable to decipher the contribution of CD8 T cells and the pathogen in autoimmune CNS disease. Here, we show that both antigen and pathogen are required in the CNS for disease induction, though not in a physically linked fashion. Intracerebral challenge with combined toll like receptor (TLR) TLR2 and TLR9 as well as TLR7 and TLR9 agonists substituted for the bacterial stimulus, but not with individual TLR agonists (TLR2, TLR3,TLR5,TLR7, TLR9). Furthermore, MyD88 inactivation rendered ODC-OVA mice resistant to disease induction. Collectively, CD8 T cell-mediated destruction of oligodendrocytes is activated if (i) an antigen shared with an infectious agent is provided in the CNS microenvironment and (ii) innate immune signals inform the CNS microenvironment that pathogen removal warrants an immune attack by CD8 T cells, even at the expense of locally restricted demyelination.
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Affiliation(s)
- Monica Sánchez-Ruiz
- Department of Neuropathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | | | - Tobias Blau
- Department of Neuropathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Olaf Utermöhlen
- Institute for Medical Microbiology, Immunology, and Hygiene, Medical Center, University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.,German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany
| | - Anna Brunn
- Department of Neuropathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Manuel Montesinos-Rongen
- Department of Neuropathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Thomas Hünig
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Martina Deckert
- Department of Neuropathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
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37
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Schuldt NJ, Binstadt BA. Dual TCR T Cells: Identity Crisis or Multitaskers? JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2019; 202:637-644. [PMID: 30670579 PMCID: PMC11112972 DOI: 10.4049/jimmunol.1800904] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/21/2018] [Indexed: 05/25/2024]
Abstract
Dual TCR T cells are a common and natural product of TCR gene rearrangement and thymocyte development. As much as one third of the T cell population may have the capability to express two different TCR specificities on the cell surface. This discovery provoked a reconsideration of the classic model of thymic selection. Many potential roles for dual TCR T cells have since been hypothesized, including posing an autoimmune hazard, dominating alloreactive T cell responses, inducing allergy, and expanding the TCR repertoire to improve protective immunity. Yet, since the initial wave of publications following the discovery of dual TCR T cells, research in the area has slowed. In this study, we aim to provide a brief but comprehensive history of dual TCR T cell research, re-evaluate past observations in the context of current knowledge of the immune system, and identify key issues for future study.
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Affiliation(s)
- Nathaniel J Schuldt
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55454; and Center for Immunology, University of Minnesota, Minneapolis, MN 55455
| | - Bryce A Binstadt
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55454; and Center for Immunology, University of Minnesota, Minneapolis, MN 55455
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38
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Sprouse ML, Bates NA, Felix KM, Wu HJJ. Impact of gut microbiota on gut-distal autoimmunity: a focus on T cells. Immunology 2019; 156:305-318. [PMID: 30560993 DOI: 10.1111/imm.13037] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/07/2018] [Accepted: 11/25/2018] [Indexed: 12/14/2022] Open
Abstract
The immune system is essential for maintaining a delicate balance between eliminating pathogens and maintaining tolerance to self-tissues to avoid autoimmunity. An enormous and complex community of gut microbiota provides essential health benefits to the host, particularly by regulating immune homeostasis. Many of the metabolites derived from commensals can impact host health by directly regulating the immune system. Many autoimmune diseases arise from an imbalance between pathogenic effector T cells and regulatory T (Treg) cells. Recent interest has emerged in understanding how cross-talk between gut microbiota and the host immune system promotes autoimmune development by controlling the differentiation and plasticity of T helper and Treg cells. At the molecular level, our recent study, along with others, demonstrates that asymptomatic colonization by commensal bacteria in the gut is capable of triggering autoimmune disease by molecular mimicking self-antigen and skewing the expression of dual T-cell receptors on T cells. Dysbiosis, an imbalance of the gut microbiota, is involved in autoimmune development in both mice and humans. Although it is well known that dysbiosis can impact diseases occurring within the gut, growing literature suggests that dysbiosis also causes the development of gut-distal/non-gut autoimmunity. In this review, we discuss recent advances in understanding the potential molecular mechanisms whereby gut microbiota induces autoimmunity, and the evidence that the gut microbiota triggers gut-distal autoimmune diseases.
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Affiliation(s)
- Maran L Sprouse
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Nicholas A Bates
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Krysta M Felix
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Hsin-Jung Joyce Wu
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA.,Arizona Arthritis Center, College of Medicine, University of Arizona, Tucson, AZ, USA
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39
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Bystander T Cells: A Balancing Act of Friends and Foes. Trends Immunol 2018; 39:1021-1035. [PMID: 30413351 DOI: 10.1016/j.it.2018.10.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/27/2018] [Accepted: 10/04/2018] [Indexed: 02/07/2023]
Abstract
T cell responses are essential for appropriate protection against pathogens. T cell immunity is achieved through the ability to discriminate between foreign and self-molecules, and this relies heavily on stringent T cell receptor (TCR) specificity. Recently, bystander activated T lymphocytes, that are specific for unrelated epitopes during an antigen-specific response, have been implicated in diverse diseases. Numerous infection models have challenged the classic dogma of T cell activation as being solely dependent on TCR and major histocompatibility complex (MHC) interactions, indicating an unappreciated role for pathogen-associated receptors on T cells. We discuss here the specific roles of bystander activated T cells in pathogenesis, shedding light on the ability of these cells to modulate disease severity independently from TCR recognition.
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40
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Glatigny S, Bettelli E. Experimental Autoimmune Encephalomyelitis (EAE) as Animal Models of Multiple Sclerosis (MS). Cold Spring Harb Perspect Med 2018; 8:cshperspect.a028977. [PMID: 29311122 DOI: 10.1101/cshperspect.a028977] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Multiple sclerosis (MS) is a multifocal demyelinating disease of the central nervous system (CNS) leading to the progressive destruction of the myelin sheath surrounding axons. It can present with variable clinical and pathological manifestations, which might reflect the involvement of distinct pathogenic processes. Although the mechanisms leading to the development of the disease are not fully understood, numerous evidences indicate that MS is an autoimmune disease, the initiation and progression of which are dependent on an autoimmune response against myelin antigens. In addition, genetic susceptibility and environmental triggers likely contribute to the initiation of the disease. At this time, there is no cure for MS, but several disease-modifying therapies (DMTs) are available to control and slow down disease progression. A good number of these DMTs were identified and tested using animal models of MS referred to as experimental autoimmune encephalomyelitis (EAE). In this review, we will recapitulate the characteristics of EAE models and discuss how they help shed light on MS pathogenesis and help test new treatments for MS patients.
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Affiliation(s)
- Simon Glatigny
- Immunology Program, Benaroya Research Institute, Seattle, Washington 98101.,Department of Immunology, University of Washington, Seattle, Washington 98109
| | - Estelle Bettelli
- Immunology Program, Benaroya Research Institute, Seattle, Washington 98101.,Department of Immunology, University of Washington, Seattle, Washington 98109
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Balakrishnan A, Jama B, Morris GP. Endogenous co‐expression of two T cell receptors promotes lymphopenia‐induced proliferation via increased affinity for self‐antigen. J Leukoc Biol 2018; 104:1097-1104. [DOI: 10.1002/jlb.1ab0618-214rrr] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/08/2018] [Accepted: 08/10/2018] [Indexed: 11/11/2022] Open
Affiliation(s)
- Amritha Balakrishnan
- Department of PathologyUniversity of California San Diego La Jolla California USA
| | - Burhan Jama
- Department of PathologyUniversity of California San Diego La Jolla California USA
| | - Gerald P. Morris
- Department of PathologyUniversity of California San Diego La Jolla California USA
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Segmented Filamentous Bacteria Provoke Lung Autoimmunity by Inducing Gut-Lung Axis Th17 Cells Expressing Dual TCRs. Cell Host Microbe 2018; 22:697-704.e4. [PMID: 29120746 DOI: 10.1016/j.chom.2017.10.007] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 07/04/2017] [Accepted: 10/16/2017] [Indexed: 01/19/2023]
Abstract
Lung complications are a major cause of rheumatoid arthritis-related mortality. Involvement of gut microbiota in lung diseases by the gut-lung axis has been widely observed, but the underlying mechanism remains mostly unknown. Using an autoimmune arthritis model, we show that a constituent of the gut microbiota, segmented filamentous bacteria (SFB), distantly provoke lung pathology. SFB induce autoantibodies in lung during the pre-arthritic phase, and SFB-dependent lung pathology requires the T helper 17 (Th17) responses. SFB-induced gut Th17 cells are preferentially recruited to lung over spleen due to robust expression in the lung of the Th17 chemoattractant, CCL20. Additionally, we found that in peripheral tissues, SFB selectively expand dual T cell receptor (TCR)-expressing Th17 cells recognizing both an SFB epitope and self-antigen, thus augmenting autoimmunity. This study reveals mechanisms for commensal-mediated gut-lung crosstalk and dual TCR-based autoimmunity.
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43
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Bjelobaba I, Begovic-Kupresanin V, Pekovic S, Lavrnja I. Animal models of multiple sclerosis: Focus on experimental autoimmune encephalomyelitis. J Neurosci Res 2018; 96:1021-1042. [PMID: 29446144 DOI: 10.1002/jnr.24224] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 01/15/2018] [Accepted: 01/25/2018] [Indexed: 12/15/2022]
Abstract
Multiple sclerosis (MS) is a chronic, progressive disorder of the central nervous system (CNS) that affects more than two million people worldwide. Several animal models resemble MS pathology; the most employed are experimental autoimmune encephalomyelitis (EAE) and toxin- and/or virus-induced demyelination. In this review we will summarize our knowledge on the utility of different animal models in MS research. Although animal models cannot replicate the complexity and heterogeneity of the MS pathology, they have proved to be useful for the development of several drugs approved for treatment of MS patients. This review focuses on EAE because it represents both clinical and pathological features of MS. During the past decades, EAE has been effective in illuminating various pathological processes that occur during MS, including inflammation, CNS penetration, demyelination, axonopathy, and neuron loss mediated by immune cells.
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Affiliation(s)
- Ivana Bjelobaba
- Institute for Biological Research "Sinisa Stankovic," Department of Neurobiology, University of Belgrade, Belgrade, Serbia
| | | | - Sanja Pekovic
- Institute for Biological Research "Sinisa Stankovic," Department of Neurobiology, University of Belgrade, Belgrade, Serbia
| | - Irena Lavrnja
- Institute for Biological Research "Sinisa Stankovic," Department of Neurobiology, University of Belgrade, Belgrade, Serbia
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Abstract
HLA associations, T cell receptor (TCR) repertoire bias, and sex bias have independently been shown for many diseases. While some immunological differences between the sexes have been described, they do not fully explain bias in men toward many infections/cancers, and toward women in autoimmunity. Next-generation TCR variable beta chain (TCRBV) immunosequencing of 824 individuals was evaluated in a multiparametric analysis including HLA-A -B/MHC class I background, TCRBV usage, sex, age, ethnicity, and TCRBV selection/expansion dynamics. We found that HLA-associated shaping of TCRBV usage differed between the sexes. Furthermore, certain TCRBVs were selected and expanded in unison. Correlations between these TCRBV relationships and biochemical similarities in HLA-binding positions were different in CD8 T cells of patients with autoimmune diseases (multiple sclerosis and rheumatoid arthritis) compared with healthy controls. Within patients, men showed higher TCRBV relationship Spearman's rhos in relation to HLA-binding position similarities compared with women. In line with this, CD8 T cells of men with autoimmune diseases also showed higher degrees of TCRBV perturbation compared with women. Concerted selection and expansion of CD8 T cells in patients with autoimmune diseases, but especially in men, appears to be less dependent on high HLA-binding similarity than in CD4 T cells. These findings are consistent with studies attributing autoimmunity to processes of epitope spreading and expansion of low-avidity T cell clones and may have further implications for the interpretation of pathogenic mechanisms of infectious and autoimmune diseases with known HLA associations. Reanalysis of some HLA association studies, separating the data by sex, could be informative.
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45
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McGinley AM, Edwards SC, Raverdeau M, Mills KHG. Th17 cells, γδ T cells and their interplay in EAE and multiple sclerosis. J Autoimmun 2018; 87:S0896-8411(18)30007-6. [PMID: 29395738 DOI: 10.1016/j.jaut.2018.01.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 01/04/2018] [Indexed: 01/09/2023]
Abstract
Experimental autoimmune encephalomyelitis (EAE) is an animal model of multiple sclerosis (MS) that shares many features with the human disease. This review will focus on the role of IL-17-secreting CD4 and γδ T cells in EAE and MS, the plasticity of Th17 cells in vivo and the application of these findings to the understating of the pathogenesis and the development of new treatments for MS. There is convincing evidence that IL-17-secreting CD4 T cells (Th17 cells) and IL-17-secreting γδ T cells play a critical pathogenic role in central nervous system (CNS) inflammation in EAE and MS. Indeed a significant number of the major discoveries on the pathogenic role of IL-17-secreting T cells in autoimmunity were made in the EAE model. These included the first demonstration that IL-23-activated IL-17-secreting T cells are the key T cells in driving autoimmune disease pathology. Although the early studies on IL-17 focused on Th17 cells, it was later demonstrated that γδ T cells were an important early source of IL-17 and IL-21 that helped amplify IL-17 production by Th17 cells in autoimmune diseases. Furthermore, it emerged that Th1 cells can also have encephalitogenic activity and that there was considerable plasticity in these T cell responses, with Th17 cells reverting to a Th1 phenotype in vivo. This questioned the pathogenic role of IL-17 and suggested that other cytokines, such as IFN-γ, GM-CSF and TNF, may be important. Nevertheless, biological drugs that target the IL-23-IL-17 pathway are highly effective in treating human psoriasis and are showing promise in the treatment of relapsing remitting MS and other T-cell mediated autoimmune diseases.
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Affiliation(s)
- Aoife M McGinley
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Sarah C Edwards
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Mathilde Raverdeau
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Kingston H G Mills
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
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Zhao D, Feng F, Zhao C, Wu F, Ma C, Bai Y, Guo J, Li H. Role of perforin secretion from CD8+ T-cells in neuronal cytotoxicity in multiple sclerosis. Neurol Res 2017; 40:62-67. [PMID: 29105578 DOI: 10.1080/01616412.2017.1398371] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVES Multiple sclerosis (MS) is the most prevalent autoimmune disease of the central nervous system, and is characterized by inflammation and myelin damage. The immune system initiates the autoimmune response, although the mechanisms of neuronal damage have not been elucidated. The purpose of the present study was to investigate autoreactive CD4+ and CD8+ T lymphocytes, in conjunction with other inflammatory cells and cytokines in active MS lesions. METHODS EAE animal models was established by plantar injections of MBP (200 μg per rat). Purified CD4+ or CD8+ T-cells were isolated from heparinized peripheral blood (EAE animals and control animals) via negative selection. To examine effects of presence of autoreactive CD4+ and CD8+ T lymphocytes, we carried out ELISA, Western blot analysis and TUNEL. In addition, we examined the direct effects of various factors on neuronal cell death using MTT assay. RESULTS The data revealed that CD8+ T-cells were more toxic to neurons compared to CD4+ T-cells, in both the MBP and EAE conditions. Bax was greater increased when neurons were co-cultured with CD8+ T-cells in the MBP group. There is a significant increase in IL-17 secretion by CD4+ T-cells in both the MBP group and EAE group. Neuronal viability were affected by Perforin (1.5 μg/mL). CONCLUSION The present study extends previous research by demonstrating the role of CD8+ T-cells in MS and supports perforin secretion by CD8+ T-cells as a potential therapeutic factor. Furthermore, we determined that CD4+ T-cells can enhance CD8+ T-cell neuronal cytotoxicity via induction of intense inflammation.
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Affiliation(s)
- Daidi Zhao
- a Department of Neurology , Tangdu Hospital, Fourth Military Medical University , Xi'an , China
| | - Fuqiang Feng
- b Department of Neurosurgery , Tangdu Hospital, Fourth Military Medical University , Xi'an , China
| | - Cong Zhao
- a Department of Neurology , Tangdu Hospital, Fourth Military Medical University , Xi'an , China
| | - Fang Wu
- c Department of Neurology , Xi'an Children's Hospital , Xi'an , China
| | - Chao Ma
- d Department of Cardiology , Tangdu Hospital, Fourth Military Medical University , Xi'an , China
| | - Yanan Bai
- a Department of Neurology , Tangdu Hospital, Fourth Military Medical University , Xi'an , China
| | - Jun Guo
- a Department of Neurology , Tangdu Hospital, Fourth Military Medical University , Xi'an , China
| | - Hongzeng Li
- a Department of Neurology , Tangdu Hospital, Fourth Military Medical University , Xi'an , China
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Proinflammatory Dual Receptor T Cells in Chronic Graft-versus-Host Disease. Biol Blood Marrow Transplant 2017; 23:1852-1860. [PMID: 28750779 DOI: 10.1016/j.bbmt.2017.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 07/16/2017] [Indexed: 12/11/2022]
Abstract
Defective post-transplantation thymopoiesis is associated with chronic graft-versus-host disease (GVHD), a multiorgan pathology affecting up to 80% of patients after allogeneic hematopoietic stem cell transplantation (HSCT). Previous work demonstrated that the subset of T cells expressing 2 T cell receptors (TCRs) is predisposed to alloreactivity, driving selective and disproportionate activity in acute GVHD in both mouse models and HSCT patients. Here we investigate a potential role for this pathogenic T cell subset in chronic GVHD (cGVHD). HSCT patients with cGVHD demonstrated increased numbers of dual TCR cells in circulation. These dual receptor cells had an activated phenotype, indicating an active role in cGVHD. Notably, single-cell RNA sequencing identified the increased dual TCR cells in cGVHD as predominantly expressing Tbet, indicative of a proinflammatory phenotype. These results identify dual TCR cells as specific mediators of pathogenic inflammation underlying cGVHD and highlight Tbet-driven T cell function as a potential pathway for potential therapeutic targeting.
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48
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Schuldt NJ, Auger JL, Spanier JA, Martinov T, Breed ER, Fife BT, Hogquist KA, Binstadt BA. Cutting Edge: Dual TCRα Expression Poses an Autoimmune Hazard by Limiting Regulatory T Cell Generation. THE JOURNAL OF IMMUNOLOGY 2017; 199:33-38. [PMID: 28539428 DOI: 10.4049/jimmunol.1700406] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 04/27/2017] [Indexed: 11/19/2022]
Abstract
Despite accounting for 10-30% of the T cell population in mice and humans, the role of dual TCR-expressing T cells in immunity remains poorly understood. It has been hypothesized that dual TCR T cells pose an autoimmune hazard by allowing self-reactive TCRs to escape thymic selection. We revisited this hypothesis using the NOD murine model of type 1 diabetes. We bred NOD mice hemizygous at both TCRα and β (TCRα+/- β+/-) loci, rendering them incapable of producing dual TCR T cells. We found that the lack of dual TCRα expression skewed the insulin-specific thymocyte population toward greater regulatory T (Treg) cell commitment, resulting in a more tolerogenic Treg to conventional T cell ratio and protection from diabetes. These data support a novel hypothesis by which dual TCR expression can promote autoimmunity by limiting agonist selection of self-reactive thymocytes into the Treg cell lineage.
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Affiliation(s)
- Nathaniel J Schuldt
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455.,Center for Immunology, University of Minnesota, Minneapolis, MN 55455
| | - Jennifer L Auger
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455.,Center for Immunology, University of Minnesota, Minneapolis, MN 55455
| | - Justin A Spanier
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455.,Department of Medicine, University of Minnesota, Minneapolis, MN 55455; and
| | - Tijana Martinov
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455.,Department of Medicine, University of Minnesota, Minneapolis, MN 55455; and
| | - Elise R Breed
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455.,Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455
| | - Brian T Fife
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455.,Department of Medicine, University of Minnesota, Minneapolis, MN 55455; and
| | - Kristin A Hogquist
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455.,Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455
| | - Bryce A Binstadt
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455; .,Center for Immunology, University of Minnesota, Minneapolis, MN 55455
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49
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Suppression of autoimmune demyelinating disease by preferential stimulation of CNS-specific CD8 T cells using Listeria-encoded neuroantigen. Sci Rep 2017; 7:1519. [PMID: 28484224 PMCID: PMC5431563 DOI: 10.1038/s41598-017-01771-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 04/12/2017] [Indexed: 11/16/2022] Open
Abstract
CD8 T-cells predominate in CNS lesions of MS patients and display oligoclonal expansion. However, the role of myelin-specific CD8 T-cells in disease remains unclear, with studies showing protective and pathogenic roles in EAE. We demonstrated a disease-suppressive function for CNS-specific CD8 T-cells in a model where the antigen is exogenously administered in vivo and used for in vitro activation. To probe the nature of the CD8 response elicited by endogenously presented myelin antigens in vivo, we developed a novel approach utilizing infection with Listeria monocytogenes (LM) encoding proteolipid protein peptide (PLP) amino acids 178-191 (LM-PLP). LM-PLP infection preferentially induced PLP-specific CD8 T-cell responses. Despite the induction of PLP-specific CD8 T-cells, LM-PLP infection did not result in disease. In fact, LM-PLP infection resulted in significant amelioration of PLP178-191-induced EAE. Disease suppression was not observed in mice deficient in CD8 T-cells, IFN-γ or perforin. DTH responses and CNS infiltration were reduced in protected mice, and their CD4 T-cells had reduced capacity to induce tissue inflammation. Importantly, infection with LM-PLP ameliorated established disease. Our studies indicate that CD8 T-cells induced by endogenous presentation of PLP178-191 attenuate CNS autoimmunity in models of EAE, implicating the potential of this approach as a novel immunotherapeutic strategy.
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50
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DePaula-Silva AB, Hanak TJ, Libbey JE, Fujinami RS. Theiler's murine encephalomyelitis virus infection of SJL/J and C57BL/6J mice: Models for multiple sclerosis and epilepsy. J Neuroimmunol 2017; 308:30-42. [PMID: 28237622 DOI: 10.1016/j.jneuroim.2017.02.012] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 02/01/2017] [Accepted: 02/10/2017] [Indexed: 10/20/2022]
Abstract
Mouse models are great tools to study the mechanisms of disease development. Theiler's murine encephalomyelitis virus is used in two distinct viral infection mouse models to study the human diseases multiple sclerosis (MS) and epilepsy. Intracerebral (i.c.) infection of the SJL/J mouse strain results in persistent viral infection of the central nervous system and a MS-like disease, while i.c. infection of the C57BL/6J mouse strain results in acute seizures and epilepsy. Our understanding of how the immune system contributes to the development of two disparate diseases caused by the same virus is presented.
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Affiliation(s)
- Ana Beatriz DePaula-Silva
- Department of Pathology, University of Utah School of Medicine, 15 North Medical Drive East, 2600 EEJMRB, Salt Lake City, UT 84112, USA
| | - Tyler J Hanak
- Department of Pathology, University of Utah School of Medicine, 15 North Medical Drive East, 2600 EEJMRB, Salt Lake City, UT 84112, USA
| | - Jane E Libbey
- Department of Pathology, University of Utah School of Medicine, 15 North Medical Drive East, 2600 EEJMRB, Salt Lake City, UT 84112, USA
| | - Robert S Fujinami
- Department of Pathology, University of Utah School of Medicine, 15 North Medical Drive East, 2600 EEJMRB, Salt Lake City, UT 84112, USA.
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