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Cancro MP, Marshak-Rothstein A. Directing risky traffic in B cells with TNIP1. Nat Immunol 2024:10.1038/s41590-024-01913-x. [PMID: 39060649 DOI: 10.1038/s41590-024-01913-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Affiliation(s)
- Michael P Cancro
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Ann Marshak-Rothstein
- Department of Medicine, UMass Chan Medical School, University of Massachusetts, Worcester, MA, USA.
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2
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Qian Q, Wu Y, Cui N, Li Y, Zhou Y, Li Y, Lian M, Xiao X, Miao Q, You Z, Wang Q, Shi Y, Cordell HJ, Timilsina S, Gershwin ME, Li Z, Ma X, Ruqi Tang. Epidemiologic and genetic associations between primary biliary cholangitis and extrahepatic rheumatic diseases. J Autoimmun 2024; 148:103289. [PMID: 39059058 DOI: 10.1016/j.jaut.2024.103289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 07/14/2024] [Accepted: 07/14/2024] [Indexed: 07/28/2024]
Abstract
Patients with primary biliary cholangitis (PBC) commonly experience extrahepatic rheumatic diseases. However, the epidemiologic and genetic associations as well as causal relationship between PBC and these extrahepatic conditions remain undetermined. In this study, we first conducted systematic review and meta-analyses by analyzing 73 studies comprising 334,963 participants across 17 countries and found strong phenotypic associations between PBC and rheumatic diseases. Next, we utilized large-scale genome-wide association study summary data to define the shared genetic architecture between PBC and rheumatic diseases, including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), systemic sclerosis (SSc) and Sjögren's syndrome (SS). We observed significant genetic correlations between PBC and each of the four rheumatic diseases. Pleiotropy and heritability enrichment analysis suggested the involvement of humoral immunity and interferon-associated processes for the comorbidity. Of note, we identified four variants shared between PBC and RA (rs80200208), SLE (rs9843053), and SSc (rs27524, rs3873182) using cross-trait meta-analysis. Additionally, several pleotropic loci for PBC and rheumatic diseases were found to share causal variants with gut microbes possessing immunoregulatory functions. Finally, Mendelian randomization revealed consistent evidence for a causal effect of PBC on RA, SLE, SSc, and SS, but no or inconsistent evidence for a causal effect of extrahepatic rheumatic diseases on PBC. Our study reveals a profound genetic overlap and causal relationships between PBC and extrahepatic rheumatic diseases, thus providing insights into shared biological mechanisms and novel therapeutic interventions.
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Affiliation(s)
- Qiwei Qian
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Yi Wu
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Nana Cui
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Yikang Li
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Yujie Zhou
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - You Li
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Min Lian
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Xiao Xiao
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Qi Miao
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Zhengrui You
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Qixia Wang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Yongyong Shi
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Collaborative Innovation Center for Brain Science, Shanghai Jiao Tong University, Shanghai, China; Affiliated Hospital of Qingdao University and Biomedical Sciences Institute of Qingdao University (Qingdao Branch of SJTU Bio-X Institutes), Qingdao University, Qingdao, China
| | - Heather J Cordell
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Suraj Timilsina
- Division of Rheumatology, Department of Medicine, Allergy and Clinical Immunology, University of California at Davis, Davis, CA, USA
| | - M Eric Gershwin
- Division of Rheumatology, Department of Medicine, Allergy and Clinical Immunology, University of California at Davis, Davis, CA, USA
| | - Zhiqiang Li
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Collaborative Innovation Center for Brain Science, Shanghai Jiao Tong University, Shanghai, China; Affiliated Hospital of Qingdao University and Biomedical Sciences Institute of Qingdao University (Qingdao Branch of SJTU Bio-X Institutes), Qingdao University, Qingdao, China.
| | - Xiong Ma
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China; Institute of Aging & Tissue Regeneration, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Ruqi Tang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China.
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3
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Liang Y, Xiao W, Peng Y, Zhang S, Dong J, Zhao J, Wang Y, Zhang M, Liu Z, Yu B. Development of nanoparticle vaccines utilizing designed Fc-binding homo-oligomers and RBD-Fc of SARS-CoV-2. Antiviral Res 2024; 227:105917. [PMID: 38782067 DOI: 10.1016/j.antiviral.2024.105917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 05/02/2024] [Accepted: 05/19/2024] [Indexed: 05/25/2024]
Abstract
The Fc-fused receptor binding domain (RBD-Fc) vaccine for SARS-CoV-2 has garnered significant attention for its capacity to provide effective and specific immune protection. However, its immunogenicity is limited, highlighting the need for improvement in clinical application. Nanoparticle delivery has been shown to be an effective method for enhancing antigen immunogenicity. In this study, we developed bivalent nanoparticle recombinant protein vaccines by assembling the RBD-Fc of SARS-CoV-2 and Fc-binding homo-oligomers o42.1 and i52.3 into octahedral and icosahedral nanoparticles. The formation of RBD-Fc nanoparticles was confirmed through structural characterization and cell binding experiments. Compared to RBD-Fc dimers, the nanoparticle vaccines induced more potent neutralizing antibodies (nAb) and stronger cellular immune responses. Therefore, using bivalent nanoparticle vaccines based on RBD-Fc presents a promising vaccination strategy against SARS-CoV-2 and offers a universal approach for enhancing the immunogenicity of Fc fusion protein vaccines.
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MESH Headings
- Animals
- Female
- Humans
- Mice
- Antibodies, Neutralizing/immunology
- Antibodies, Viral/immunology
- COVID-19/prevention & control
- COVID-19/immunology
- COVID-19 Vaccines/immunology
- Immunity, Cellular
- Immunogenicity, Vaccine
- Immunoglobulin Fc Fragments/immunology
- Immunoglobulin Fc Fragments/chemistry
- Mice, Inbred BALB C
- Nanovaccines
- Protein Binding
- Protein Multimerization
- Recombinant Fusion Proteins/immunology
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/chemistry
- Spike Glycoprotein, Coronavirus/immunology
- Spike Glycoprotein, Coronavirus/chemistry
- Vaccine Development
- Vaccines, Synthetic/immunology
- Vaccines, Synthetic/administration & dosage
- Vaccines, Synthetic/chemistry
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Affiliation(s)
- Yucai Liang
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Weiling Xiao
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Yuan Peng
- School of Clinical Medicine, Shandong Second Medical University, Weifang, China
| | - Shengshuo Zhang
- School of Life Science and Technology, Shandong Second Medical University, Weifang, China
| | - Jinhua Dong
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, China; International Research Frontiers Initiative, Tokyo Institute of Technology, Yokohama, Japan
| | - Jun Zhao
- Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agriculture Sciences in Weifang, Weifang, Shandong, 261325, China
| | - Yuhui Wang
- School of Clinical Medicine, Shandong Second Medical University, Weifang, China
| | - Mengtao Zhang
- School of Life Science and Technology, Shandong Second Medical University, Weifang, China
| | - Zhijun Liu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China.
| | - Bowen Yu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China.
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4
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Guo S, Tian Y, Li J, Zeng X. A Glimpse into Humoral Response and Related Therapeutic Approaches of Takayasu's Arteritis. Int J Mol Sci 2024; 25:6528. [PMID: 38928233 PMCID: PMC11203527 DOI: 10.3390/ijms25126528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Takayasu's arteritis (TAK) manifests as an insidiously progressive and debilitating form of granulomatous inflammation including the aorta and its major branches. The precise etiology of TAK remains elusive, with current understanding suggesting an autoimmune origin primarily driven by T cells. Notably, a growing body of evidence bears testimony to the widespread effects of B cells on disease pathogenesis and progression. Distinct alterations in peripheral B cell subsets have been described in individuals with TAK. Advancements in technology have facilitated the identification of novel autoantibodies in TAK. Moreover, emerging data suggest that dysregulated signaling cascades downstream of B cell receptor families, including interactions with innate pattern recognition receptors such as toll-like receptors, as well as co-stimulatory molecules like CD40, CD80 and CD86, may result in the selection and proliferation of autoreactive B cell clones in TAK. Additionally, ectopic lymphoid neogenesis within the aortic wall of TAK patients exhibits functional characteristics. In recent decades, therapeutic interventions targeting B cells, notably utilizing the anti-CD20 monoclonal antibody rituximab, have demonstrated efficacy in TAK. Despite the importance of the humoral immune response, a systematic understanding of how autoreactive B cells contribute to the pathogenic process is still lacking. This review provides a comprehensive overview of the biological significance of B cell-mediated autoimmunity in TAK pathogenesis, as well as insights into therapeutic strategies targeting the humoral response. Furthermore, it examines the roles of T-helper and T follicular helper cells in humoral immunity and their potential contributions to disease mechanisms. We believe that further identification of the pathogenic role of autoimmune B cells and the underlying regulation system will lead to deeper personalized management of TAK patients. We believe that further elucidation of the pathogenic role of autoimmune B cells and the underlying regulatory mechanisms holds promise for the development of personalized approaches to managing TAK patients.
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Affiliation(s)
- Shuning Guo
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100006, China; (S.G.); (Y.T.)
- National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, Beijing 100006, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing 100006, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100006, China
| | - Yixiao Tian
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100006, China; (S.G.); (Y.T.)
- National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, Beijing 100006, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing 100006, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100006, China
| | - Jing Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100006, China; (S.G.); (Y.T.)
- National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, Beijing 100006, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing 100006, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100006, China
| | - Xiaofeng Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100006, China; (S.G.); (Y.T.)
- National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, Beijing 100006, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing 100006, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100006, China
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5
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Bagavant H, Durslewicz J, Pyclik M, Makuch M, Papinska JA, Deshmukh US. Age-associated B cell infiltration in salivary glands represents a hallmark of Sjögren's-like disease in aging mice. GeroScience 2024:10.1007/s11357-024-01159-3. [PMID: 38656650 DOI: 10.1007/s11357-024-01159-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024] Open
Abstract
Sjögren's disease (SjD), characterized by circulating autoantibodies and exocrine gland inflammation, is typically diagnosed in women over 50 years of age. However, the contribution of age to SjD pathogenesis is unclear. C57BL/6 female mice at different ages were studied to investigate how aging influences the dynamics of salivary gland inflammation. Salivary glands were characterized for immune cell infiltration, inflammatory gene expression, and saliva production. At 8 months, gene expression of several chemokines involved in immune cell trafficking was significantly elevated. At this age, age-associated B cells (ABCs), a unique subset of B cells expressing the myeloid markers CD11b and/or CD11c, were preferentially enriched in the salivary glands compared to other organs like the spleen or liver. The salivary gland ABCs increased with age and positively correlated with increased CD4 T follicular helper cells. By 14 months, lymphocytic foci of well-organized T and B cells spontaneously developed in the salivary glands. In addition, the mice progressively developed high titers of serum autoantibodies. A subset of aged mice developed salivary gland dysfunction mimicking SjD patients. Our data demonstrates that aging is a significant confounding factor for SjD. Thus, aged female C57BL/6 mice are more appropriate and a valuable preclinical model for investigating SjD pathogenesis and novel therapeutic interventions.
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Affiliation(s)
- Harini Bagavant
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA.
| | - Justyna Durslewicz
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Marcelina Pyclik
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Magdalena Makuch
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Joanna A Papinska
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Umesh S Deshmukh
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA.
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6
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Snijckers RPM, Foks AC. Adaptive immunity and atherosclerosis: aging at its crossroads. Front Immunol 2024; 15:1350471. [PMID: 38686373 PMCID: PMC11056569 DOI: 10.3389/fimmu.2024.1350471] [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: 12/05/2023] [Accepted: 03/28/2024] [Indexed: 05/02/2024] Open
Abstract
Adaptive immunity plays a profound role in atherosclerosis pathogenesis by regulating antigen-specific responses, inflammatory signaling and antibody production. However, as we age, our immune system undergoes a gradual functional decline, a phenomenon termed "immunosenescence". This decline is characterized by a reduction in proliferative naïve B- and T cells, decreased B- and T cell receptor repertoire and a pro-inflammatory senescence associated secretory profile. Furthermore, aging affects germinal center responses and deteriorates secondary lymphoid organ function and structure, leading to impaired T-B cell dynamics and increased autoantibody production. In this review, we will dissect the impact of aging on adaptive immunity and the role played by age-associated B- and T cells in atherosclerosis pathogenesis, emphasizing the need for interventions that target age-related immune dysfunction to reduce cardiovascular disease risk.
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Affiliation(s)
| | - Amanda C. Foks
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
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7
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Pisetsky DS. Unique Interplay Between Antinuclear Antibodies and Nuclear Molecules in the Pathogenesis of Systemic Lupus Erythematosus. Arthritis Rheumatol 2024. [PMID: 38622070 DOI: 10.1002/art.42863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/19/2024] [Accepted: 04/11/2024] [Indexed: 04/17/2024]
Abstract
Systemic lupus erythematosus (SLE) is a prototypic autoimmune disease that primarily affects young women and causes a wide range of inflammatory manifestations. The hallmark of SLE is the production of antibodies to components of the cell nucleus (antinuclear antibodies [ANAs]). These antibodies can bind to DNA, RNA, and protein complexes with nucleic acids. Among ANAs, antibodies to DNA (anti-DNA) are markers for classification and disease activity, waxing and waning disease activity in many patients. In the blood, anti-DNA antibodies can bind to DNA to form immune complexes with two distinct roles in pathogenesis: (1) renal deposition to provoke nephritis and (2) stimulation of cytokine production following uptake into innate immune cells and interaction with internal nucleic acid sensors. These sensors are part of an internal host defense system in the cell cytoplasm that can respond to DNA from infecting organisms; during cell stress, DNA from nuclear and mitochondrial sources can also trigger these sensors. The formation of immune complexes requires a source of extracellular DNA in an immunologically accessible form. As shown in in vivo and in vitro systems, extracellular DNA can emerge from dead and dying cells in both a free and a particulate form. Neutrophils undergoing the process of NETosis can release DNA in mesh-like structures called neutrophil extracellular traps. In SLE, therefore, the combination of ANAs and immunologically active DNA can create new structures that can promote inflammation throughout the body as well as drive organ inflammation and damage.
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Affiliation(s)
- David S Pisetsky
- Duke University Medical Center and Durham Veterans Administration Medical Center, Durham, North Carolina
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8
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Knox JJ, Cancro MP. ABCs begin with ZEB2. Immunol Cell Biol 2024; 102:229-231. [PMID: 38525813 DOI: 10.1111/imcb.12744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Age-associated B cells (ABCs) are a stable subset of memory B lymphocytes that develop during microbial infections and in autoimmune diseases. Despite growing appreciation of their phenotypic and functional characteristics, the transcriptional networks involved in ABC fate commitment and maintenance have remained elusive. In their recent publication, Dai et al. tackle this problem, leveraging both mouse models and human diseases to reveal zinc finger E-box-binding homeobox 2 (ZEB2) as a key transcriptional regulator of ABC lineage specification. In aggregate, their results show that ZEB2, a member of the zinc finger E homeobox binding family, promotes ABC differentiation by repressing alternative differentiative fates and targeting genes important for ABC character and function. Moreover, their results strengthen the case for causal links between ABC fate and function in autoimmune pathologies.
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Affiliation(s)
- James J Knox
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Michael P Cancro
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
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9
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Jonsson AH. Synovial Tissue Insights into Heterogeneity of Rheumatoid Arthritis. Curr Rheumatol Rep 2024; 26:81-88. [PMID: 38157158 PMCID: PMC11245950 DOI: 10.1007/s11926-023-01129-2] [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: 12/11/2023] [Indexed: 01/03/2024]
Abstract
PURPOSE OF REVIEW Rheumatoid arthritis is one of the most common rheumatic and autoimmune diseases. While it can affect many different organ systems, RA primarily involves inflammation in the synovium, the tissue that lines joints. Patients with RA exhibit significant clinical heterogeneity in terms of presence or absence of autoantibodies, degree of permanent deformities, and most importantly, treatment response. These clinical characteristics point to heterogeneity in the cellular and molecular pathogenesis of RA, an area that several recent studies have begun to address. RECENT FINDINGS Single-cell RNA-sequencing initiatives and deeper focused studies have revealed several RA-associated cell populations in synovial tissues, including peripheral helper T cells, autoimmunity-associated B cells (ABCs), and NOTCH3+ sublining fibroblasts. Recent large transcriptional studies and translational clinical trials present frameworks to capture cellular and molecular heterogeneity in RA synovium. Technological developments, such as spatial transcriptomics and machine learning, promise to further elucidate the different types of RA synovitis and the biological mechanisms that characterize them, key elements of precision medicine to optimize patient care and outcomes in RA. This review recaps the findings of those recent studies and puts our current knowledge and future challenges into scientific and clinical perspective.
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Affiliation(s)
- Anna Helena Jonsson
- Division of Rheumatology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.
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10
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Punnanitinont A, Kasperek EM, Zhu C, Yu G, Miecznikowski JC, Kramer JM. TLR7 activation of age-associated B cells mediates disease in a mouse model of primary Sjögren's disease. J Leukoc Biol 2024; 115:497-510. [PMID: 37930711 PMCID: PMC10990110 DOI: 10.1093/jleuko/qiad135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023] Open
Abstract
Primary Sjögren's disease (pSD) (also referred to as Sjögren's syndrome) is an autoimmune disease that primarily occurs in women. In addition to exocrine gland dysfunction, pSD patients exhibit B cell hyperactivity. B cell-intrinsic TLR7 activation is integral to the pathogenesis of systemic lupus erythematosus, a disease that shares similarities with pSD. The role of TLR7-mediated B cell activation in pSD, however, remains poorly understood. We hypothesized that age-associated B cells (ABCs) were expanded in pSD and that TLR7-stimulated ABCs exhibited pathogenic features characteristic of disease. Our data revealed that ABC expansion and TLR7 expression were enhanced in a pSD mouse model in a Myd88-dependent manner. Splenocytes from pSD mice showed enhanced sensitivity to TLR7 agonism as compared with those derived from control animals. Sort-purified marginal zone B cells and ABCs from pSD mice showed enhanced inflammatory cytokine secretion and were enriched for antinuclear autoantibodies following TLR7 agonism. Finally, IgG from pSD patient sera showed elevated antinuclear autoantibodies, many of which were secreted preferentially by TLR7-stimulated murine marginal zone B cells and ABCs. These data indicate that pSD B cells are hyperresponsive to TLR7 agonism and that TLR7-activated B cells contribute to pSD through cytokine and autoantibody production. Thus, therapeutics that target TLR7 signaling cascades in B cells may have utility in pSD patients.
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Affiliation(s)
- Achamaporn Punnanitinont
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY USA
| | - Eileen M. Kasperek
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY USA
| | - Chengsong Zhu
- Department of Immunology, Microarray & Immune Phenotyping Core Facility, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Guan Yu
- Department of Biostatistics, School of Public Health and Health Professions, The University at Buffalo, State University of New York, Buffalo, NY USA
| | - Jeffrey C. Miecznikowski
- Department of Biostatistics, School of Public Health and Health Professions, The University at Buffalo, State University of New York, Buffalo, NY USA
| | - Jill M. Kramer
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY USA
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11
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Bagavant H, Durslewicz J, Pyclik M, Makuch M, Papinska JA, Deshmukh US. Age-associated B cell infiltration in salivary glands represents a hallmark of Sjögren's-like disease in aging mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.13.580185. [PMID: 38405963 PMCID: PMC10888762 DOI: 10.1101/2024.02.13.580185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Sjögren's disease (SjD), characterized by circulating autoantibodies and exocrine gland inflammation, is typically diagnosed in women over 50 years of age. However, the contribution of age to SjD pathogenesis is unclear. C57BL/6 female mice at different ages were studied to investigate how aging influences the dynamics of salivary gland inflammation. Salivary glands were characterized for immune cell infiltration, inflammatory gene expression, oxidative stress, and saliva production. At 8 months, gene expression of several chemokines involved in immune cell trafficking was significantly elevated. At this age, Age-associated B cells (ABCs), a unique subset of B cells expressing the myeloid markers CD11b and/or CD11c, were preferentially enriched in the salivary glands compared to other organs like the spleen or liver. The salivary gland ABCs increased with age and positively correlated with increased CD4 T follicular helper cells. By 14 months, lymphocytic foci of well-organized T and B cells spontaneously developed in the salivary glands. In addition, the mice progressively developed high titers of serum autoantibodies. A subset of aged mice developed salivary gland dysfunction mimicking SjD patients. Our data demonstrates that aging is a significant confounding factor for SjD. Thus, aged female C57BL/6 mice are more appropriate and a valuable preclinical model for investigating SjD pathogenesis and novel therapeutic interventions.
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Lv J, Zhang C, Liu X, Gu C, Liu Y, Gao Y, Huang Z, Jiang Q, Chen B, He D, Wang T, Xu Z, Su W. An aging-related immune landscape in the hematopoietic immune system. Immun Ageing 2024; 21:3. [PMID: 38169405 PMCID: PMC10759628 DOI: 10.1186/s12979-023-00403-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Aging is a holistic change that has a major impact on the immune system, and immunosenescence contributes to the overall progression of aging. The bone marrow is the most important hematopoietic immune organ, while the spleen, as the most important extramedullary hematopoietic immune organ, maintains homeostasis of the human hematopoietic immune system (HIS) in cooperation with the bone marrow. However, the overall changes in the HIS during aging have not been described. Here, we describe a hematopoietic immune map of the spleen and bone marrow of young and old mice using single-cell sequencing and flow cytometry techniques. RESULTS We observed extensive, complex changes in the HIS during aging. Compared with young mice, the immune cells of aged mice showed a marked tendency toward myeloid differentiation, with the neutrophil population accounting for a significant proportion of this response. In this change, hypoxia-inducible factor 1-alpha (Hif1α) was significantly overexpressed, and this enhanced the immune efficacy and inflammatory response of neutrophils. Our research revealed that during the aging process, hematopoietic stem cells undergo significant changes in function and composition, and their polymorphism and differentiation abilities are downregulated. Moreover, we found that the highly responsive CD62L + HSCs were obviously downregulated in aging, suggesting that they may play an important role in the aging process. CONCLUSIONS Overall, aging extensively alters the cellular composition and function of the HIS. These findings could potentially give high-dimensional insights and enable more accurate functional and developmental analyses as well as immune monitoring in HIS aging.
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Affiliation(s)
- Jianjie Lv
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Chun Zhang
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Xiuxing Liu
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Chenyang Gu
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Yidan Liu
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Yuehan Gao
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Zhaohao Huang
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Qi Jiang
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Binyao Chen
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Daquan He
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Tianfu Wang
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China
| | - Zhuping Xu
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Wenru Su
- State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, 510060, China.
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Abstract
Recent advances in studies of immune memory in mice and humans have reinforced the concept that memory B cells play a critical role in protection against repeated infections, particularly from variant viruses. Hence, insights into the development of high-quality memory B cells that can generate broadly neutralizing antibodies that bind such variants are key for successful vaccine development. Here, we review the cellular and molecular mechanisms by which memory B cells are generated and how these processes shape the antibody diversity and breadth of memory B cells. Then, we discuss the mechanisms of memory B cell reactivation in the context of established immune memory; the contribution of antibody feedback to this process has now begun to be reappreciated.
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Affiliation(s)
- Takeshi Inoue
- Laboratory of Lymphocyte Differentiation, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Tomohiro Kurosaki
- Laboratory of Lymphocyte Differentiation, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan.
- Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan.
- Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan.
- Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences (IMS), Kanagawa, Japan.
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14
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Olivieri G, Cotugno N, Palma P. Emerging insights into atypical B cells in pediatric chronic infectious diseases and immune system disorders: T(o)-bet on control of B-cell immune activation. J Allergy Clin Immunol 2024; 153:12-27. [PMID: 37890706 PMCID: PMC10842362 DOI: 10.1016/j.jaci.2023.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/13/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023]
Abstract
Repetitive or persistent cellular stimulation in vivo has been associated with the development of a heterogeneous B-cell population that exhibits a distinctive phenotype and, in addition to classical B-cell markers, often expresses the transcription factor T-bet and myeloid marker CD11c. Research suggests that this atypical population consists of B cells with distinct B-cell receptor specificities capable of binding the antigens responsible for their development. The expansion of this population occurs in the presence of chronic inflammatory conditions and autoimmune diseases where different nomenclatures have been used to describe them. However, as a result of the diverse contexts in which they have been investigated, these cells have remained largely enigmatic, with much ambiguity remaining regarding their phenotype and function in humoral immune response as well as their role in autoimmunity. Atypical B cells have garnered considerable interest because of their ability to produce specific antibodies and/or autoantibodies and because of their association with key disease manifestations. Although they have been widely described in the context of adults, little information is present for children. Therefore, the aim of this narrative review is to describe the characteristics of this population, suggest their function in pediatric immune-related diseases and chronic infections, and explore their potential therapeutic avenues.
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Affiliation(s)
- Giulio Olivieri
- Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; PhD Program in Immunology, Molecular Medicine and Applied Biotechnology, University of Rome Tor Vergata, Rome, Italy
| | - Nicola Cotugno
- Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; Department of Systems Medicine, Molecular Medicine, and Applied Biotechnology, University of Rome Tor Vergata, Rome, Italy
| | - Paolo Palma
- Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; Department of Systems Medicine, Molecular Medicine, and Applied Biotechnology, University of Rome Tor Vergata, Rome, Italy.
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15
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Smit V, de Mol J, Schaftenaar FH, Depuydt MAC, Postel RJ, Smeets D, Verheijen FWM, Bogers L, van Duijn J, Verwilligen RAF, Grievink HW, Bernabé Kleijn MNA, van Ingen E, de Jong MJM, Goncalves L, Peeters JAHM, Smeets HJ, Wezel A, Polansky JK, de Winther MPJ, Binder CJ, Tsiantoulas D, Bot I, Kuiper J, Foks AC. Single-cell profiling reveals age-associated immunity in atherosclerosis. Cardiovasc Res 2023; 119:2508-2521. [PMID: 37390467 PMCID: PMC10676459 DOI: 10.1093/cvr/cvad099] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/07/2023] [Accepted: 05/12/2023] [Indexed: 07/02/2023] Open
Abstract
AIMS Aging is a dominant driver of atherosclerosis and induces a series of immunological alterations, called immunosenescence. Given the demographic shift towards elderly, elucidating the unknown impact of aging on the immunological landscape in atherosclerosis is highly relevant. While the young Western diet-fed Ldlr-deficient (Ldlr-/-) mouse is a widely used model to study atherosclerosis, it does not reflect the gradual plaque progression in the context of an aging immune system as occurs in humans. METHODS AND RESULTS Here, we show that aging promotes advanced atherosclerosis in chow diet-fed Ldlr-/- mice, with increased incidence of calcification and cholesterol crystals. We observed systemic immunosenescence, including myeloid skewing and T-cells with more extreme effector phenotypes. Using a combination of single-cell RNA-sequencing and flow cytometry on aortic leucocytes of young vs. aged Ldlr-/- mice, we show age-related shifts in expression of genes involved in atherogenic processes, such as cellular activation and cytokine production. We identified age-associated cells with pro-inflammatory features, including GzmK+CD8+ T-cells and previously in atherosclerosis undefined CD11b+CD11c+T-bet+ age-associated B-cells (ABCs). ABCs of Ldlr-/- mice showed high expression of genes involved in plasma cell differentiation, co-stimulation, and antigen presentation. In vitro studies supported that ABCs are highly potent antigen-presenting cells. In cardiovascular disease patients, we confirmed the presence of these age-associated T- and B-cells in atherosclerotic plaques and blood. CONCLUSIONS Collectively, we are the first to provide comprehensive profiling of aged immunity in atherosclerotic mice and reveal the emergence of age-associated T- and B-cells in the atherosclerotic aorta. Further research into age-associated immunity may contribute to novel diagnostic and therapeutic tools to combat cardiovascular disease.
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Affiliation(s)
- Virginia Smit
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Jill de Mol
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Frank H Schaftenaar
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Marie A C Depuydt
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Rimke J Postel
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Diede Smeets
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Fenne W M Verheijen
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Laurens Bogers
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Janine van Duijn
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Robin A F Verwilligen
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Hendrika W Grievink
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
- Centre for Human Drug Research, Zernikedreef 8, 2333 CL Leiden, The Netherlands
| | - Mireia N A Bernabé Kleijn
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Eva van Ingen
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Maaike J M de Jong
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Lauren Goncalves
- Department of Surgery, Haaglanden Medical Center—location Westeinde, Lijnbaan 32, 2515 VA The Hague, The Netherlands
| | - Judith A H M Peeters
- Department of Surgery, Haaglanden Medical Center—location Westeinde, Lijnbaan 32, 2515 VA The Hague, The Netherlands
| | - Harm J Smeets
- Department of Surgery, Haaglanden Medical Center—location Westeinde, Lijnbaan 32, 2515 VA The Hague, The Netherlands
| | - Anouk Wezel
- Department of Surgery, Haaglanden Medical Center—location Westeinde, Lijnbaan 32, 2515 VA The Hague, The Netherlands
| | - Julia K Polansky
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Menno P J de Winther
- Amsterdam University Medical Centers—location AMC, University of Amsterdam, Experimental Vascular Biology, Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Christoph J Binder
- Department of Laboratory Medicine, Medical University of Vienna, Lazarettgasse 14, AKH BT25.2, 1090 Vienna, Austria
| | - Dimitrios Tsiantoulas
- Department of Laboratory Medicine, Medical University of Vienna, Lazarettgasse 14, AKH BT25.2, 1090 Vienna, Austria
| | - Ilze Bot
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Johan Kuiper
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Amanda C Foks
- Leiden Academic Centre for Drug Research, Division of BioTherapeutics, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
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16
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Qin R, Wu H, Guan H, Tang C, Zheng Z, Deng C, Chen C, Zou Q, Lu L, Ma K. Anti-phospholipid autoantibodies in human diseases. Clin Immunol 2023; 256:109803. [PMID: 37821073 DOI: 10.1016/j.clim.2023.109803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/24/2023] [Accepted: 10/05/2023] [Indexed: 10/13/2023]
Abstract
Anti-phospholipid autoantibodies are a group of antibodies that can specifically bind to anionic phospholipids and phospholipid protein complexes. Recent studies have reported elevated serum anti-phospholipid autoantibody levels in patients with antiphospholipid syndrome, systemic lupus erythematosus, rheumatoid arthritis, metabolic disorders, malaria, SARS-CoV-2 infection, obstetric diseases and cardiovascular diseases. However, the underlying mechanisms of anti-phospholipid autoantibodies in disease pathogenesis remain largely unclear. Emerging evidence indicate that anti-phospholipid autoantibodies modulate NETs formation, monocyte activation, blockade of apoptotic cell phagocytosis in macrophages, complement activation, dendritic cell activation and vascular endothelial cell activation. Herein, we provide an update on recent advances in elucidating the effector mechanisms of anti-phospholipid autoantibodies in the pathogenesis of various diseases, which may facilitate the development of potential therapeutic targets for the treatment of anti-phospholipid autoantibody-related disorders.
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Affiliation(s)
- Rencai Qin
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Haiqi Wu
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Hui Guan
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Chun Tang
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Zhihua Zheng
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Chong Deng
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong 999077, China
| | - Chengshun Chen
- Department of Rheumatology and Immunology, First Affiliated Hospital of Army Medical University, Chongqing, China
| | - Qinghua Zou
- Department of Rheumatology and Immunology, First Affiliated Hospital of Army Medical University, Chongqing, China.
| | - Liwei Lu
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong 999077, China.
| | - Kongyang Ma
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China.
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17
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Müller L, Di Benedetto S. From aging to long COVID: exploring the convergence of immunosenescence, inflammaging, and autoimmunity. Front Immunol 2023; 14:1298004. [PMID: 37942323 PMCID: PMC10628127 DOI: 10.3389/fimmu.2023.1298004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/12/2023] [Indexed: 11/10/2023] Open
Abstract
The process of aging is accompanied by a dynamic restructuring of the immune response, a phenomenon known as immunosenescence. This mini-review navigates through the complex landscape of age-associated immune changes, chronic inflammation, age-related autoimmune tendencies, and their potential links with immunopathology of Long COVID. Immunosenescence serves as an introductory departure point, elucidating alterations in immune cell profiles and their functional dynamics, changes in T-cell receptor signaling, cytokine network dysregulation, and compromised regulatory T-cell function. Subsequent scrutiny of chronic inflammation, or "inflammaging," highlights its roles in age-related autoimmune susceptibilities and its potential as a mediator of the immune perturbations observed in Long COVID patients. The introduction of epigenetic facets further amplifies the potential interconnections. In this compact review, we consider the dynamic interactions between immunosenescence, inflammation, and autoimmunity. We aim to explore the multifaceted relationships that link these processes and shed light on the underlying mechanisms that drive their interconnectedness. With a focus on understanding the immunological changes in the context of aging, we seek to provide insights into how immunosenescence and inflammation contribute to the emergence and progression of autoimmune disorders in the elderly and may serve as potential mediator for Long COVID disturbances.
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Affiliation(s)
- Ludmila Müller
- Max Planck Institute for Human Development, Center for Lifespan Psychology, Berlin, Germany
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18
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Zheng Y, Liu Q, Goronzy JJ, Weyand CM. Immune aging - A mechanism in autoimmune disease. Semin Immunol 2023; 69:101814. [PMID: 37542986 PMCID: PMC10663095 DOI: 10.1016/j.smim.2023.101814] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 07/20/2023] [Indexed: 08/07/2023]
Abstract
Evidence is emerging that the process of immune aging is a mechanism leading to autoimmunity. Over lifetime, the immune system adapts to profound changes in hematopoiesis and lymphogenesis, and progressively restructures in face of an ever-expanding exposome. Older adults fail to generate adequate immune responses against microbial infections and tumors, but accumulate aged T cells, B cells and myeloid cells. Age-associated B cells are highly efficient in autoantibody production. T-cell aging promotes the accrual of end-differentiated effector T cells with potent cytotoxic and pro-inflammatory abilities and myeloid cell aging supports a low grade, sterile and chronic inflammatory state (inflammaging). In pre-disposed individuals, immune aging can lead to frank autoimmune disease, manifesting with chronic inflammation and irreversible tissue damage. Emerging data support the concept that autoimmunity results from aging-induced failure of fundamental cellular processes in immune effector cells: genomic instability, loss of mitochondrial fitness, failing proteostasis, dwindling lysosomal degradation and inefficient autophagy. Here, we have reviewed the evidence that malfunctional mitochondria, disabled lysosomes and stressed endoplasmic reticula induce pathogenic T cells and macrophages that drive two autoimmune diseases, rheumatoid arthritis (RA) and giant cell arteritis (GCA). Recognizing immune aging as a risk factor for autoimmunity will open new avenues of immunomodulatory therapy, including the repair of malfunctioning mitochondria and lysosomes.
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Affiliation(s)
- Yanyan Zheng
- Department of Medicine, Mayo Clinic Alix School of Medicine, Rochester, MN 55905, USA; Department of Immunology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA; Department of Cardiovascular Medicine, Mayo Clinic Alix School of Medicine, Rochester, MN, USA
| | - Qingxiang Liu
- Department of Medicine, Mayo Clinic Alix School of Medicine, Rochester, MN 55905, USA
| | - Jorg J Goronzy
- Department of Medicine, Mayo Clinic Alix School of Medicine, Rochester, MN 55905, USA; Department of Immunology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Cornelia M Weyand
- Department of Medicine, Mayo Clinic Alix School of Medicine, Rochester, MN 55905, USA; Department of Immunology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA; Department of Cardiovascular Medicine, Mayo Clinic Alix School of Medicine, Rochester, MN, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
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19
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Sadighi Akha AA, Csomós K, Ujházi B, Walter JE, Kumánovics A. Evolving Approach to Clinical Cytometry for Immunodeficiencies and Other Immune Disorders. Clin Lab Med 2023; 43:467-483. [PMID: 37481324 DOI: 10.1016/j.cll.2023.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2023]
Abstract
Primary immunodeficiencies were initially identified on the basis of recurrent, severe or unusual infections. Subsequently, it was noted that these diseases can also manifest with autoimmunity, autoinflammation, allergy, lymphoproliferation and malignancy, hence a conceptual change and their renaming as inborn errors of immunity. Ongoing advances in flow cytometry provide the opportunity to expand or modify the utility and scope of existing laboratory tests in this field to mirror this conceptual change. Here we have used the B cell subset, variably known as CD21low B cells, age-associated B cells and T-bet+ B cells, as an example to demonstrate this possibility.
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Affiliation(s)
- Amir A Sadighi Akha
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Krisztián Csomós
- Division of Pediatric Allergy/Immunology, University of South Florida, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
| | - Boglárka Ujházi
- Division of Pediatric Allergy/Immunology, University of South Florida, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
| | - Jolán E Walter
- Division of Pediatric Allergy/Immunology, University of South Florida, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
| | - Attila Kumánovics
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
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20
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Baechle JJ, Chen N, Makhijani P, Winer S, Furman D, Winer DA. Chronic inflammation and the hallmarks of aging. Mol Metab 2023; 74:101755. [PMID: 37329949 PMCID: PMC10359950 DOI: 10.1016/j.molmet.2023.101755] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/30/2023] [Accepted: 06/13/2023] [Indexed: 06/19/2023] Open
Abstract
BACKGROUND Recently, the hallmarks of aging were updated to include dysbiosis, disabled macroautophagy, and chronic inflammation. In particular, the low-grade chronic inflammation during aging, without overt infection, is defined as "inflammaging," which is associated with increased morbidity and mortality in the aging population. Emerging evidence suggests a bidirectional and cyclical relationship between chronic inflammation and the development of age-related conditions, such as cardiovascular diseases, neurodegeneration, cancer, and frailty. How the crosstalk between chronic inflammation and other hallmarks of aging underlies biological mechanisms of aging and age-related disease is thus of particular interest to the current geroscience research. SCOPE OF REVIEW This review integrates the cellular and molecular mechanisms of age-associated chronic inflammation with the other eleven hallmarks of aging. Extra discussion is dedicated to the hallmark of "altered nutrient sensing," given the scope of Molecular Metabolism. The deregulation of hallmark processes during aging disrupts the delicate balance between pro-inflammatory and anti-inflammatory signaling, leading to a persistent inflammatory state. The resultant chronic inflammation, in turn, further aggravates the dysfunction of each hallmark, thereby driving the progression of aging and age-related diseases. MAIN CONCLUSIONS The crosstalk between chronic inflammation and other hallmarks of aging results in a vicious cycle that exacerbates the decline in cellular functions and promotes aging. Understanding this complex interplay will provide new insights into the mechanisms of aging and the development of potential anti-aging interventions. Given their interconnectedness and ability to accentuate the primary elements of aging, drivers of chronic inflammation may be an ideal target with high translational potential to address the pathological conditions associated with aging.
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Affiliation(s)
- Jordan J Baechle
- Buck Artificial Intelligence Platform, the Buck Institute for Research on Aging, Novato, CA, USA
| | - Nan Chen
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Division of Cellular & Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON, Canada
| | - Priya Makhijani
- Buck Artificial Intelligence Platform, the Buck Institute for Research on Aging, Novato, CA, USA; Department of Immunology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Shawn Winer
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - David Furman
- Buck Artificial Intelligence Platform, the Buck Institute for Research on Aging, Novato, CA, USA; Stanford 1000 Immunomes Project, Stanford University School of Medicine, Stanford, CA, USA; Instituto de Investigaciones en Medicina Traslacional (IIMT), Universidad Austral, CONICET, Pilar, Argentina.
| | - Daniel A Winer
- Buck Artificial Intelligence Platform, the Buck Institute for Research on Aging, Novato, CA, USA; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Department of Immunology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Division of Cellular & Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON, Canada; Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA.
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21
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Zhang X, Zhu G, Zhang F, Yu D, Jia X, Ma B, Chen W, Cai X, Mao L, Zhuang C, Yu Z. Identification of a novel immune-related transcriptional regulatory network in sarcopenia. BMC Geriatr 2023; 23:463. [PMID: 37525094 PMCID: PMC10391869 DOI: 10.1186/s12877-023-04152-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 07/04/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Sarcopenia is highly prevalent in elderly individuals and has a significant adverse effect on their physical health and quality of life, but the mechanisms remain unclear. Studies have indicated that transcription factors (TFs) and the immune microenvironment play a vital role in skeletal muscle atrophy. METHODS RNA-seq data of 40 muscle samples were downloaded from the GEO database. Then, differentially expressed genes (DEGs), TFs(DETFs), pathways(DEPs), and the expression of immune gene sets were identified with limma, edgeR, GO, KEGG, ORA, GSVA, and ssGSEA. Furthermore, the results above were integrated into coexpression analysis by Pearson correlation analysis (PCA). Significant coexpression patterns were used to construct the immune-related transcriptional regulatory network by Cytoscape and potential medicine targeting the network was screened by Connectivity Map. Finally, the regulatory mechanisms and RNA expression of DEGs and DETFs were identified by multiple online databases and RT‒qPCR. RESULTS We screened 808 DEGs (log2 fold change (FC) > 1 or < - 1, p < 0.05), 4 DETFs (log2FC > 0.7 or < - 0.7, p < 0.05), 304 DEPs (enrichment scores (ES) > 1 or < - 1, p < 0.05), and 1208 differentially expressed immune genes sets (DEIGSs) (p < 0.01). Based on the results of PCA (correlation coefficient (CC) > 0.4 or < - 0.4, p < 0.01), we then structured an immune-related network with 4 DETFs, 9 final DEGs, 11 final DEPs, and 6 final DEIGSs. Combining the results of online databases and in vitro experiments, we found that PAX5-SERPINA5-PI3K/Akt (CC ≤ 0.444, p ≤ 0.004) was a potential transcriptional regulation axis, and B cells (R = 0.437, p = 0.005) may play a vital role in this signal transduction. Finally, the compound of trichostatin A (enrichment = -0.365, specificity = 0.4257, p < 0.0001) might be a potential medicine for sarcopenia based on the PubChem database and the result of the literature review. CONCLUSIONS We first identified immune-related transcriptional regulatory network with high-throughput RNA-seq data in sarcopenia. We hypothesized that PAX5-SERPIAN5-PI3K/Akt axis is a potential mechanism in sarcopenia and that B cells may play a vital role in this signal transduction. In addition, trichostatin A might be a potential medicine for sarcopenia.
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Affiliation(s)
- Xianzhong Zhang
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Middle 301 Yanchang Road, Shanghai, 200072, China
| | - Guanglou Zhu
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Middle 301 Yanchang Road, Shanghai, 200072, China
| | - Fengmin Zhang
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Middle 301 Yanchang Road, Shanghai, 200072, China
| | - Dingye Yu
- Department of General Surgery, Shanghai Minimally Invasive Surgery Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuyang Jia
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Bingwei Ma
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Middle 301 Yanchang Road, Shanghai, 200072, China
| | - Weizhe Chen
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Middle 301 Yanchang Road, Shanghai, 200072, China
| | - Xinyu Cai
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lingzhou Mao
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chengle Zhuang
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Middle 301 Yanchang Road, Shanghai, 200072, China
- Colorectal Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhen Yu
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Middle 301 Yanchang Road, Shanghai, 200072, China.
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22
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Yam-Puc JC, Hosseini Z, Horner EC, Gerber PP, Beristain-Covarrubias N, Hughes R, Lulla A, Rust M, Boston R, Ali M, Fischer K, Simmons-Rosello E, O'Reilly M, Robson H, Booth LH, Kahanawita L, Correa-Noguera A, Favara D, Ceron-Gutierrez L, Keller B, Craxton A, Anderson GSF, Sun XM, Elmer A, Saunders C, Bermperi A, Jose S, Kingston N, Mulroney TE, Piñon LPG, Chapman MA, Grigoriadou S, MacFarlane M, Willis AE, Patil KR, Spencer S, Staples E, Warnatz K, Buckland MS, Hollfelder F, Hyvönen M, Döffinger R, Parkinson C, Lear S, Matheson NJ, Thaventhiran JED. Age-associated B cells predict impaired humoral immunity after COVID-19 vaccination in patients receiving immune checkpoint blockade. Nat Commun 2023; 14:3292. [PMID: 37369658 PMCID: PMC10299999 DOI: 10.1038/s41467-023-38810-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 05/17/2023] [Indexed: 06/29/2023] Open
Abstract
Age-associated B cells (ABC) accumulate with age and in individuals with different immunological disorders, including cancer patients treated with immune checkpoint blockade and those with inborn errors of immunity. Here, we investigate whether ABCs from different conditions are similar and how they impact the longitudinal level of the COVID-19 vaccine response. Single-cell RNA sequencing indicates that ABCs with distinct aetiologies have common transcriptional profiles and can be categorised according to their expression of immune genes, such as the autoimmune regulator (AIRE). Furthermore, higher baseline ABC frequency correlates with decreased levels of antigen-specific memory B cells and reduced neutralising capacity against SARS-CoV-2. ABCs express high levels of the inhibitory FcγRIIB receptor and are distinctive in their ability to bind immune complexes, which could contribute to diminish vaccine responses either directly, or indirectly via enhanced clearance of immune complexed-antigen. Expansion of ABCs may, therefore, serve as a biomarker identifying individuals at risk of suboptimal responses to vaccination.
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Affiliation(s)
- Juan Carlos Yam-Puc
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK.
| | - Zhaleh Hosseini
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Emily C Horner
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Pehuén Pereyra Gerber
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), University of Cambridge, Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | | | - Robert Hughes
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Aleksei Lulla
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Maria Rust
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Rebecca Boston
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Magda Ali
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Katrin Fischer
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Edward Simmons-Rosello
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Martin O'Reilly
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Harry Robson
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Lucy H Booth
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Lakmini Kahanawita
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Andrea Correa-Noguera
- Department of Oncology, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - David Favara
- Department of Oncology, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - Lourdes Ceron-Gutierrez
- Department of Clinical Immunology, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - Baerbel Keller
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Andrew Craxton
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Georgina S F Anderson
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Xiao-Ming Sun
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Anne Elmer
- NIHR Cambridge Clinical Research Facility, Cambridge, UK
| | | | - Areti Bermperi
- NIHR Cambridge Clinical Research Facility, Cambridge, UK
| | - Sherly Jose
- NIHR Cambridge Clinical Research Facility, Cambridge, UK
| | - Nathalie Kingston
- NIHR BioResource, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Thomas E Mulroney
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Lucia P G Piñon
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Michael A Chapman
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | | | - Marion MacFarlane
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Anne E Willis
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Kiran R Patil
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Sarah Spencer
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
| | - Emily Staples
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK
- Department of Clinical Immunology, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - Klaus Warnatz
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Department of Immunology, University Hospital Zurich, Zurich, Switzerland
| | - Matthew S Buckland
- Department of Clinical Immunology, Barts Health, London, UK
- UCL GOSH Institute of Child Health Division of Infection and Immunity, Section of Cellular and Molecular Immunology, London, UK
| | | | - Marko Hyvönen
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Rainer Döffinger
- Department of Clinical Immunology, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - Christine Parkinson
- Department of Oncology, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - Sara Lear
- Department of Clinical Immunology, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - Nicholas J Matheson
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), University of Cambridge, Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
- NHS Blood and Transplant, Cambridge, UK
| | - James E D Thaventhiran
- Medical Research Council Toxicology Unit, School of Biological Sciences, University of Cambridge, Cambridge, UK.
- Department of Clinical Immunology, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK.
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23
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Shan J, Li L, Du L, Yang P. Association of TBX21 gene polymorphisms and acute anterior uveitis risk in a Chinese population: A case-control study. Exp Eye Res 2023; 229:109417. [PMID: 36796535 DOI: 10.1016/j.exer.2023.109417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/27/2022] [Accepted: 02/13/2023] [Indexed: 02/16/2023]
Abstract
Copy number variations (CNVs) in TBX21 gene have been reported to be significantly and positively correlated with acute anterior uveitis (AAU). Our study was performed to further determine whether single nucleotide polymorphisms (SNPs) in TBX21 gene confer susceptibility to AAU in a Chinese population. In our case-control study, 420 AAU patients and 918 healthy controls were included. SNP genotyping was conducted via the MassARRAY™ iPLEX Gold platform. Association and haplotype analyses were performed via SPSS 23.0 and SHEsis software. No significant association was observed between two candidate SNPs of TBX21 gene (rs4794067, rs11657479) and susceptibility to AAU (Pc > 0.05). In stratification analysis, the result also showed no significant difference between the HLA-B27 positive AAU patients and non-typed healthy controls. Additionally, no association was detected between TBX21 haplotypes and AAU risk. In conclusion, the polymorphisms rs4794067 and rs11657479 in TBX21 gene did not confer disease susceptibility to AAU in a Chinese population.
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Affiliation(s)
- Jiankang Shan
- The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, People's Republic of China; Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Henan Province Eye Hospital, Henan International Joint Research Laboratory for Ocular Immunology and Retinal Injury Repair, Zhengzhou, People's Republic of China
| | - Lin Li
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Henan Province Eye Hospital, Henan International Joint Research Laboratory for Ocular Immunology and Retinal Injury Repair, Zhengzhou, People's Republic of China
| | - Liping Du
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Henan Province Eye Hospital, Henan International Joint Research Laboratory for Ocular Immunology and Retinal Injury Repair, Zhengzhou, People's Republic of China.
| | - Peizeng Yang
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Henan Province Eye Hospital, Henan International Joint Research Laboratory for Ocular Immunology and Retinal Injury Repair, Zhengzhou, People's Republic of China; The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing Branch (Municipal Division) of National Clinical Research Center for Ocular Diseases, Chongqing, People's Republic of China.
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24
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T-bet highCD21 low B cells: the need to unify our understanding of a distinct B cell population in health and disease. Curr Opin Immunol 2023; 82:102300. [PMID: 36931129 DOI: 10.1016/j.coi.2023.102300] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 03/17/2023]
Abstract
After many years of a niche research in a few laboratories of the world, T-bethighCD21low B cells have entered the limelight during the last years after the discovery of T-bet as common transcription factor of this unconventional B cell population and the increasing awareness of the expansion of these cells in autoimmune and infectious diseases. This population consists of different subsets which share large parts of their transcriptome, essential phenotypic markers, and reduced B cell receptor (BCR) signaling capacity. Inborn errors of immunity have helped to delineate essential signals for their differentiation. While our comprehension of their origin has improved, future research will hopefully profit from a common definition of the different T-bethighCD21low subpopulations in order to better define their specific roles during normal and aberrant immune responses.
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25
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Olivieri F, Marchegiani F, Matacchione G, Giuliani A, Ramini D, Fazioli F, Sabbatinelli J, Bonafè M. Sex/gender-related differences in inflammaging. Mech Ageing Dev 2023; 211:111792. [PMID: 36806605 DOI: 10.1016/j.mad.2023.111792] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/12/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023]
Abstract
Geroscience puts mechanisms of aging as a driver of the most common age-related diseases and dysfunctions. Under this perspective, addressing the basic mechanisms of aging will produce a better understanding than addressing each disease pathophysiology individually. Worldwide, despite greater functional impairment, life expectancy is higher in women than in men. Gender differences in the prevalence of multimorbidity lead mandatory to the understanding of the mechanisms underlying gender-related differences in multimorbidity patterns and disability-free life expectancy. Extensive literature suggested that inflammaging is at the crossroad of aging and age-related diseases. In this review, we highlight the main evidence on sex/gender differences in the mechanisms that foster inflammaging, i.e. the age-dependent triggering of innate immunity, modifications of adaptive immunity, and accrual of senescent cells, underpinning some biomarkers of inflammaging that show sex-related differences. In the framework of the "gender medicine perspective", we will also discuss how sex/gender differences in inflammaging can affect sex differences in COVID-19 severe outcomes.
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Affiliation(s)
- Fabiola Olivieri
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy; Clinic of Laboratory and Precision Medicine, IRCCS INRCA, Ancona, Italy
| | | | - Giulia Matacchione
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - Angelica Giuliani
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - Deborah Ramini
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, Ancona, Italy
| | - Francesca Fazioli
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - Jacopo Sabbatinelli
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy; Laboratory Medicine Unit, Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy.
| | - Massimiliano Bonafè
- Department of Experimental, Diagnostic, and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
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26
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Long A, Kleiner A, Looney RJ. Immune dysregulation. J Allergy Clin Immunol 2023; 151:70-80. [PMID: 36608984 DOI: 10.1016/j.jaci.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 01/05/2023]
Abstract
The understanding of immune dysregulation in many different diseases continues to grow. There is increasing evidence that altered microbiome and gut barrier dysfunction contribute to systemic inflammation in patients with primary immunodeficiency and in patients with rheumatic disease. Recent research provides insight into the process of induction and maturation of pathogenic age-associated B cells and highlights the role of age-associated B cells in creating tissue inflammation. T follicular regulatory cells are shown to help maintain B-cell tolerance, and therapeutic approaches to increase or promote T follicular regulatory cells may help prevent or decrease immune dysregulation. Meanwhile, novel studies of systemic-onset juvenile idiopathic arthritis reveal a strong HLA association with interstitial lung disease and identify key aspects of the pathogenesis of macrophage activation syndrome. Studies of hyperinflammatory syndromes, including the recently described multisystem inflammatory syndrome of children, characterize similarities and differences in cytokine profiles and T-cell activation. This review focuses on recent advances in the understanding of immune dysregulation and describes potential key factors that may function as biomarkers for disease or targets for therapeutic interventions. Future trials are necessary to address the many remaining questions with regards to pathogenesis, diagnosis, and treatment of autoimmune, inflammatory, and immunodeficiency syndromes.
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Affiliation(s)
- Andrew Long
- Allergy Immunology Rheumatology Division, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Anatole Kleiner
- Allergy Immunology Rheumatology Division, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - R John Looney
- Allergy Immunology Rheumatology Division, University of Rochester School of Medicine and Dentistry, Rochester, NY.
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27
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Li ZY, Cai ML, Qin Y, Chen Z. Age/autoimmunity-associated B cells in inflammatory arthritis: An emerging therapeutic target. Front Immunol 2023; 14:1103307. [PMID: 36817481 PMCID: PMC9933781 DOI: 10.3389/fimmu.2023.1103307] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 01/10/2023] [Indexed: 01/25/2023] Open
Abstract
Age/autoimmunity-associated B cells (ABCs) are a novel B cell subpopulation with a unique transcriptional signature and cell surface phenotype. They are not sensitive to BCR but rely on TLR7 or TLR9 in the context of T cell-derived cytokines for the differentiation. It has been established that aberrant expansion of ABCs is linked to the pathogenesis of systemic autoimmune diseases such as systemic lupus erythematosus. Recently, we and other groups have shown that increased ABCs is associated with rheumatoid arthritis (RA) disease activity and have demonstrated their pathogenic role in RA, indicating that targeting specific B cell subsets is a promising strategy for the treatment of inflammatory arthritis. In this review, we summarize the current knowledge of ABCs, focusing on their emerging role in the pathogenesis of inflammatory arthritis. A deep understanding of the biology of ABCs in the context of inflammatory settings in vivo will ultimately contribute to the development of novel targeted therapies for the treatment of inflammatory arthritis.
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Affiliation(s)
- Zhen-Yu Li
- Department of Rheumatology and Immunology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ming-Long Cai
- Department of Rheumatology and Immunology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yi Qin
- Department of Rheumatology and Immunology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zhu Chen
- Department of Rheumatology and Immunology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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28
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Punnanitinont A, Kasperek EM, Kiripolsky J, Zhu C, Miecznikowski JC, Kramer JM. TLR7 agonism accelerates disease in a mouse model of primary Sjögren's syndrome and drives expansion of T-bet + B cells. Front Immunol 2022; 13:1034336. [PMID: 36591307 PMCID: PMC9799719 DOI: 10.3389/fimmu.2022.1034336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022] Open
Abstract
Primary Sjögren's syndrome (pSS) is a systemic autoimmune disease characterized by chronic inflammation of exocrine tissue, resulting in loss of tears and saliva. Patients also experience many extra-glandular disease manifestations. Treatment for pSS is palliative, and there are currently no treatments available that target disease etiology. Previous studies in our lab demonstrated that MyD88 is crucial for pSS pathogenesis in the NOD.B10Sn-H2b (NOD.B10) pSS mouse model, although the way in which MyD88-dependent pathways become activated in disease remains unknown. Based on its importance in other autoimmune diseases, we hypothesized that TLR7 activation accelerates pSS pathogenesis. We administered the TLR7 agonist Imiquimod (Imq) or sham treatment to pre-disease NOD.B10 females for 6 weeks. Parallel experiments were performed in age and sex-matched C57BL/10 controls. Imq-treated pSS animals exhibited cervical lymphadenopathy, splenomegaly, and expansion of TLR7-expressing B cells. Robust lymphocytic infiltration of exocrine tissues, kidney and lung was observed in pSS mice following treatment with Imq. TLR7 agonism also induced salivary hypofunction in pSS mice, which is a hallmark of disease. Anti-nuclear autoantibodies, including Ro (SSA) and La (SSB) were increased in pSS mice following Imq administration. Cervical lymph nodes from Imq-treated NOD.B10 animals demonstrated an increase in the percentage of activated/memory CD4+ T cells. Finally, T-bet+ B cells were expanded in the spleens of Imq-treated pSS mice. Thus, activation of TLR7 accelerates local and systemic disease and promotes expansion of T-bet-expressing B cells in pSS.
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Affiliation(s)
- Achamaporn Punnanitinont
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Eileen M. Kasperek
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Jeremy Kiripolsky
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Chengsong Zhu
- Department of Immunology, Microarray & Immune Phenotyping Core Facility, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Jeffrey C. Miecznikowski
- Department of Biostatistics, School of Public Health and Health Professions, The University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Jill M. Kramer
- Department of Oral Biology, School of Dental Medicine, The University at Buffalo, State University of New York, Buffalo, NY, United States,*Correspondence: Jill M. Kramer,
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29
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Leffler J, Trend S, Hart PH, French MA. Epstein-Barr virus infection, B-cell dysfunction and other risk factors converge in gut-associated lymphoid tissue to drive the immunopathogenesis of multiple sclerosis: a hypothesis. Clin Transl Immunology 2022; 11:e1418. [PMID: 36325491 PMCID: PMC9621333 DOI: 10.1002/cti2.1418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/10/2022] Open
Abstract
Multiple sclerosis is associated with Epstein-Barr virus (EBV) infection, B-cell dysfunction, gut dysbiosis, and environmental and genetic risk factors, including female sex. A disease model incorporating all these factors remains elusive. Here, we hypothesise that EBV-infected memory B cells (MBCs) migrate to gut-associated lymphoid tissue (GALT) through EBV-induced expression of LPAM-1, where they are subsequently activated by gut microbes and/or their products resulting in EBV reactivation and compartmentalised anti-EBV immune responses. These responses involve marginal zone (MZ) B cells that activate CD4+ T-cell responses, via HLA-DRB1, which promote downstream B-cell differentiation towards CD11c+/T-bet+ MBCs, as well as conventional MBCs. Intrinsic expression of low-affinity B-cell receptors (BCRs) by MZ B cells and CD11c+/T-bet+ MBCs promotes polyreactive BCR/antibody responses against EBV proteins (e.g. EBNA-1) that cross-react with central nervous system (CNS) autoantigens (e.g. GlialCAM). EBV protein/autoantigen-specific CD11c+/T-bet+ MBCs migrate to the meningeal immune system and CNS, facilitated by their expression of CXCR3, and induce cytotoxic CD8+ T-cell responses against CNS autoantigens amplified by BAFF, released from EBV-infected MBCs. An increased abundance of circulating IgA+ MBCs, observed in MS patients, might also reflect GALT-derived immune responses, including disease-enhancing IgA antibody responses against EBV and gut microbiota-specific regulatory IgA+ plasma cells. Female sex increases MZ B-cell and CD11c+/T-bet+ MBC activity while environmental risk factors affect gut dysbiosis. Thus, EBV infection, B-cell dysfunction and other risk factors converge in GALT to generate aberrant B-cell responses that drive pathogenic T-cell responses in the CNS.
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Affiliation(s)
- Jonatan Leffler
- Telethon Kids InstituteUniversity of Western AustraliaPerthWAAustralia
| | - Stephanie Trend
- Telethon Kids InstituteUniversity of Western AustraliaPerthWAAustralia,Perron Institute for Neurological and Translational ScienceUniversity of Western AustraliaPerthWAAustralia
| | - Prue H Hart
- Telethon Kids InstituteUniversity of Western AustraliaPerthWAAustralia
| | - Martyn A French
- School of Biomedical SciencesUniversity of Western AustraliaPerthWAAustralia,Immunology DivisionPathWest Laboratory MedicinePerthWAAustralia
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30
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Corneth OBJ, Neys SFH, Hendriks RW. Aberrant B Cell Signaling in Autoimmune Diseases. Cells 2022; 11:cells11213391. [PMID: 36359789 PMCID: PMC9654300 DOI: 10.3390/cells11213391] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/15/2022] [Accepted: 10/24/2022] [Indexed: 11/30/2022] Open
Abstract
Aberrant B cell signaling plays a critical in role in various systemic and organ-specific autoimmune diseases. This is supported by genetic evidence by many functional studies in B cells from patients or specific animal models and by the observed efficacy of small-molecule inhibitors. In this review, we first discuss key signal transduction pathways downstream of the B cell receptor (BCR) that ensure that autoreactive B cells are removed from the repertoire or functionally silenced. We provide an overview of aberrant BCR signaling that is associated with inappropriate B cell repertoire selection and activation or survival of peripheral B cell populations and plasma cells, finally leading to autoantibody formation. Next to BCR signaling, abnormalities in other signal transduction pathways have been implicated in autoimmune disease. These include reduced activity of several phosphates that are downstream of co-inhibitory receptors on B cells and increased levels of BAFF and APRIL, which support survival of B cells and plasma cells. Importantly, pathogenic synergy of the BCR and Toll-like receptors (TLR), which can be activated by endogenous ligands, such as self-nucleic acids, has been shown to enhance autoimmunity. Finally, we will briefly discuss therapeutic strategies for autoimmune disease based on interfering with signal transduction in B cells.
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31
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Vidal-Pedrola G, Naamane N, Cameron JA, Pratt AG, Mellor AL, Isaacs JD, Scheel-Toellner D, Anderson AE. Characterization of age-associated B cells in early drug-naïve rheumatoid arthritis patients. Immunology 2022; 168:640-653. [PMID: 36281956 DOI: 10.1111/imm.13598] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/21/2022] [Indexed: 12/01/2022] Open
Abstract
Age-associated B cells (ABCs) are an immune cell subset linked to autoimmunity, infection and ageing, and whose pathophysiological importance was recently highlighted using single cell synovial tissue profiling. To elucidate their pathophysiological relevance, peripheral blood (PB) ABCs from early rheumatoid arthritis (eRA) patients naïve to disease-modifying anti-rheumatic drugs (DMARDs) were compared with their synovial fluid (SF) counterparts, and to PB ABCs from psoriatic arthritis patients and healthy controls. PB and SF B-cell subsets were phenotyped by multi-parameter flow cytometry, sorted and subjected to gene expression profiling (NanoString nCounter® Immunology V2 Panel) and functional characterization (stimulated cytokine measurements by immunoassay). PB ABCs of eRA patients, which are transcriptionally distinct from those of control cohorts, express chemokine receptors and adhesion molecules, such as CXCR3, that favour homing to inflammatory sites over lymphoid tissue. These cells are an activated, class-switched B-cell subset expressing high levels of HLA-DR, co-stimulatory molecules and T-bet. Their secretion profile includes IL-12p70 and IL-23 but low levels of IL-10. High surface expression of FcRL family members, including FcRL3, furthermore suggests a role for these cells in autoimmunity. Finally, and unlike in the periphery where they are rare, ABCs are the predominant B-cell subsets in SF. These observations indicate the predilection of ABCs for inflammatory tissue in RA, where their propensity for antigen presentation and pro-inflammatory phenotype may support autoimmune pathology. Their potential as a therapeutic target therefore warrants further study.
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Affiliation(s)
- Gemma Vidal-Pedrola
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Najib Naamane
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - James A Cameron
- Institute for Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Arthur G Pratt
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- Musculoskeletal Unit, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Andrew L Mellor
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - John D Isaacs
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- Musculoskeletal Unit, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | | | - Amy E Anderson
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
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32
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Jenkins D, Phalke S, Bell R, Lessard S, Gupta S, Youssef M, Tam K, Nocon A, Rivera-Correa J, Wright T, Sculco T, Otero M, Pernis AB, Sculco P. Adaptive immune responses in patients requiring revision after total knee arthroplasty. J Orthop Res 2022; 41:984-993. [PMID: 36121317 DOI: 10.1002/jor.25445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/25/2022] [Accepted: 09/14/2022] [Indexed: 02/04/2023]
Abstract
Dissatisfaction occurs in nearly 20% of patients after total knee arthroplasty (TKA); however, there remains only limited understanding of the biologic mechanisms that may contribute to suboptimal postoperative outcomes requiring revision surgery. Expansion of effector T and B cells, could promote an abnormal healing response via local or peripheral immune system mechanisms and contribute to inferior outcomes necessitating revision TKA. In this pilot study, we hypothesized that patients suffering from complications of arthrofibrosis or instability may exhibit differences in adaptive immune function. Patients (n = 31) undergoing revision TKA for an indication of arthrofibrosis or instability were prospectively enrolled. Whole blood and synovial fluid (SF) from the operative knee were collected at time of surgery. Peripheral blood mononuclear cells were isolated and analyzed by flow cytometry. Serum and SF were assessed for immunoglobulin levels by Luminex and antiphospholipid antibodies by enzyme-linked immunoassay. No significant differences were observed in peripheral blood T/B cell populations or serum immunoglobulins levels between groups. SF analysis demonstrated significant differences between the two groups, with higher levels of immunoglobulin G1 (IgG1) (p = 0.0184), IgG3 (p = 0.0084) and antiphosphatidyl serine IgG (p = 0.034) in arthrofibrosis relative to instability patients. Increased levels of both IgG subclasses and antiphospholipid antibodies in the SF suggest that intra-articular T-B cell interactions, potentially triggered by exposure to apoptotic components generated during post-op healing, could be functioning as a source of immune complexes that fuel fibrous tissue growth in arthrofibrotic patients.
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Affiliation(s)
- Daniel Jenkins
- HSS Research Institute, Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York City, New York, USA
| | - Swati Phalke
- HSS Research Institute, Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York City, New York, USA
| | - Richard Bell
- HSS Research Institute, Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York City, New York, USA
- HSS Research Institute, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York City, New York, USA
| | - Samantha Lessard
- HSS Research Institute, Orthopedic Soft Tissue Research Program, Hospital for Special Surgery, New York City, New York, USA
| | - Sanjay Gupta
- HSS Research Institute, Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York City, New York, USA
| | - Mark Youssef
- Department of Orthopedic Surgery, Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York City, New York, USA
| | - Kathleen Tam
- Department of Orthopedic Surgery, Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York City, New York, USA
| | - Allina Nocon
- Department of Orthopedic Surgery, Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York City, New York, USA
| | - Juan Rivera-Correa
- HSS Research Institute, Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York City, New York, USA
| | - Timothy Wright
- Department of Biomechanics, Hospital for Special Surgery, New York City, New York, USA
| | - Thomas Sculco
- Department of Orthopedic Surgery, Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York City, New York, USA
| | - Miguel Otero
- HSS Research Institute, Orthopedic Soft Tissue Research Program, Hospital for Special Surgery, New York City, New York, USA
- HSS Research Institute, Orthopedic Soft Tissue Research Program, Weill Cornell Medical College, New York City, New York, USA
| | - Alessandra B Pernis
- HSS Research Institute, Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York City, New York, USA
- HSS Research Institute, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York City, New York, USA
- Department of Medicine, Weill Cornell Medicine, New York City, New York, USA
- Department of Medicine, Immunology & Microbial Pathogenesis, Weill Cornell Medicine, New York City, New York, USA
| | - Peter Sculco
- Department of Orthopedic Surgery, Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York City, New York, USA
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Rivera-Correa J, Rodriguez A. Autoantibodies during infectious diseases: Lessons from malaria applied to COVID-19 and other infections. Front Immunol 2022; 13:938011. [PMID: 36189309 PMCID: PMC9520403 DOI: 10.3389/fimmu.2022.938011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Autoimmunity is a common phenomenon reported in many globally relevant infections, including malaria and COVID-19. These and other highly inflammatory diseases have been associated with the presence of autoantibodies. The role that these autoantibodies play during infection has been an emerging topic of interest. The vast numbers of studies reporting a range of autoantibodies targeting cellular antigens, such as dsDNA and lipids, but also immune molecules, such as cytokines, during malaria, COVID-19 and other infections, underscore the importance that autoimmunity can play during infection. During both malaria and COVID-19, the presence of autoantibodies has been correlated with associated pathologies such as malarial anemia and severe COVID-19. Additionally, high levels of Atypical/Autoimmune B cells (ABCs and atypical B cells) have been observed in both diseases. The growing literature of autoimmune B cells, age-associated B cells and atypical B cells in Systemic Lupus erythematosus (SLE) and other autoimmune disorders has identified recent mechanistic and cellular targets that could explain the development of autoantibodies during infection. These new findings establish a link between immune responses during infection and autoimmune disorders, highlighting shared mechanistic insights. In this review, we focus on the recent evidence of autoantibody generation during malaria and other infectious diseases and their potential pathological role, exploring possible mechanisms that may explain the development of autoimmunity during infections.
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Affiliation(s)
- Juan Rivera-Correa
- Biological Sciences Department, New York City College of Technology, City University of New York, Brooklyn, NY, United States
- *Correspondence: Juan Rivera-Correa,
| | - Ana Rodriguez
- Department of Microbiology, New York University School of Medicine, New York, NY, United States
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Chen Z, Flores Castro D, Gupta S, Phalke S, Manni M, Rivera-Correa J, Jessberger R, Zaghouani H, Giannopoulou E, Pannellini T, Pernis AB. Interleukin-13 Receptor α1-Mediated Signaling Regulates Age-Associated/Autoimmune B Cell Expansion and Lupus Pathogenesis. Arthritis Rheumatol 2022; 74:1544-1555. [PMID: 35438841 PMCID: PMC9427689 DOI: 10.1002/art.42146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 02/11/2022] [Accepted: 04/12/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Age-associated/autoimmune B cells (ABCs) are an emerging B cell subset with aberrant expansion in systemic lupus erythematosus. ABC generation and differentiation exhibit marked sexual dimorphism, and Toll-like receptor 7 (TLR-7) engagement is a key contributor to these sex differences. ABC generation is also controlled by interleukin-21 (IL-21) and its interplay with interferon-γ and IL-4. This study was undertaken to investigate whether IL-13 receptor α1 (IL-13Rα1), an X-linked receptor that transmits IL-4/IL-13 signals, regulates ABCs and lupus pathogenesis. METHODS Mice lacking DEF-6 and switch-associated protein 70 (double-knockout [DKO]), which preferentially develop lupus in females, were crossed with IL-13Rα1-knockout mice. IL-13Rα1-knockout male mice were also crossed with Y chromosome autoimmune accelerator (Yaa) DKO mice, which overexpress TLR-7 and develop severe disease. ABCs were assessed using flow cytometry and RNA-Seq. Lupus pathogenesis was evaluated using serologic and histologic analyses. RESULTS ABCs expressed higher levels of IL-13Rα1 than follicular B cells. The absence of IL-13Rα1 in either DKO female mice or Yaa DKO male mice decreased the accumulation of ABCs, the differentiation of ABCs into plasmablasts, and autoantibody production. Lack of IL-13Rα1 also prolonged survival and delayed the development of tissue inflammation. IL-13Rα1 deficiency diminished in vitro generation of ABCs, an effect that, surprisingly, could be observed in response to IL-21 alone. RNA-Seq revealed that ABCs lacking IL-13Rα1 down-regulated some histologic characteristics of B cells but up-regulated myeloid markers and proinflammatory mediators. CONCLUSION Our findings indicate a novel role for IL-13Rα1 in controlling ABC generation and differentiation, suggesting that IL-13Rα1 contributes to these effects by regulating a subset of IL-21-mediated signaling events. These results also suggest that X-linked genes besides TLR7 participate in the regulation of ABCs in lupus.
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Affiliation(s)
- Zhu Chen
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY, USA
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, China
| | - Danny Flores Castro
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY, USA
| | - Sanjay Gupta
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY, USA
| | - Swati Phalke
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY, USA
| | - Michela Manni
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY, USA
| | - Juan Rivera-Correa
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY, USA
| | - Rolf Jessberger
- Institute of Physiological Chemistry, Medical Faculty, Technische Universitat, Dresden, Germany
| | - Habib Zaghouani
- Department of Molecular Microbiology and Immunology, University of Missouri School of Medicine, Columbia, MO
- Department of Neurology, University of Missouri School of Medicine, Columbia, MO
- Department of Child Health, University of Missouri School of Medicine, Columbia, MO
| | - Evgenia Giannopoulou
- David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA
- Biological Sciences Department, New York City College of Technology, City University of New York, Brooklyn, NY, USA
| | - Tania Pannellini
- Research Division and Precision Medicine Laboratory, Hospital for Special Surgery, New York, NY, USA
| | - Alessandra B. Pernis
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY, USA
- David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
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Qin Y, Cai ML, Jin HZ, Huang W, Zhu C, Bozec A, Huang J, Chen Z. Age-associated B cells contribute to the pathogenesis of rheumatoid arthritis by inducing activation of fibroblast-like synoviocytes via TNF-α-mediated ERK1/2 and JAK-STAT1 pathways. Ann Rheum Dis 2022; 81:1504-1514. [PMID: 35760450 DOI: 10.1136/ard-2022-222605] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/17/2022] [Indexed: 12/28/2022]
Abstract
OBJECTIVES Age-associated B cells (ABCs) are a recently identified B cell subset, whose expansion has been increasingly linked to the pathogenesis of autoimmune disorders. This study aimed to investigate whether ABCs are involved in the pathogenesis and underlying mechanisms of rheumatoid arthritis (RA). METHODS ABCs were assessed in collagen-induced arthritis (CIA) mice and patients with RA using flow cytometry. Transcriptomic features of RA ABCs were explored using RNA-seq. Primary fibroblast-like synoviocytes (FLS) derived from the synovial tissue of patients with RA were cocultured with ABCs or ABCs-conditioned medium (ABCsCM). IL-6, MMP-1, MMP-3 and MMP-13 levels in the coculture supernatant were detected by ELISA. Signalling pathways related to ABCs-induced FLS activation were examined using western blotting. RESULTS Increased ABCs levels in the blood, spleen and inflammatory joints of CIA mice were observed. Notably, ABCs were elevated in the blood, synovial fluid and synovial tissue of patients with RA and positively correlated with disease activity. RNA-seq revealed upregulated chemotaxis-related genes in RA ABCs compared with those in naive and memory B cells. Coculture of FLS with RA ABCs or ABCsCM led to an active phenotype of FLS, with increased production of IL-6, MMP-1, MMP-3 and MMP-13. Mechanistically, ABCsCM-derived TNF-α promoted the upregulation of interferon-stimulated genes in FLS, with elevated phosphorylation of ERK1/2 and STAT1. Furthermore, blockage of ERK1/2 and Janus Kinase (JAK)-STAT1 pathways inhibited the activation of FLS induced by ABCsCM. CONCLUSIONS Our results suggest that ABCs contribute to the pathogenesis of RA by inducing the activation of FLS via TNF-α-mediated ERK1/2 and JAK-STAT1 pathways.
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Affiliation(s)
- Yi Qin
- Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ming-Long Cai
- Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Hui-Zhi Jin
- Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wei Huang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chen Zhu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Aline Bozec
- Department of Internal Medicine III, Institute for Clinical Immunology University of Erlangen-Nuremberg, Erlangen, Germany
| | - Jingang Huang
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhu Chen
- Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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Ruggiero A, Pascucci GR, Cotugno N, Domínguez-Rodríguez S, Rinaldi S, Tagarro A, Rojo P, Foster C, Bamford A, De Rossi A, Nastouli E, Klein N, Morrocchi E, Fatou B, Smolen KK, Ozonoff A, Di Pastena M, Luzuriaga K, Steen H, Giaquinto C, Goulder P, Rossi P, Levy O, Pahwa S, Palma P. Determinants of B-Cell Compartment Hyperactivation in European Adolescents Living With Perinatally Acquired HIV-1 After Over 10 Years of Suppressive Therapy. Front Immunol 2022; 13:860418. [PMID: 35432380 PMCID: PMC9009387 DOI: 10.3389/fimmu.2022.860418] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 03/03/2022] [Indexed: 01/07/2023] Open
Abstract
Background Despite a successful antiretroviral therapy (ART), adolescents living with perinatally acquired HIV (PHIV) experience signs of B-cell hyperactivation with expansion of 'namely' atypical B-cell phenotypes, including double negative (CD27-IgD-) and termed age associated (ABCs) B-cells (T-bet+CD11c+), which may result in reduced cell functionality, including loss of vaccine-induced immunological memory and higher risk of developing B-cells associated tumors. In this context, perinatally HIV infected children (PHIV) deserve particular attention, given their life-long exposure to chronic immune activation. Methods We studied 40 PHIV who started treatment by the 2nd year of life and maintained virological suppression for 13.5 years, with 5/40 patients experiencing transient elevation of the HIV-1 load in the plasma (Spike). We applied a multi-disciplinary approach including immunological B and T cell phenotype, plasma proteomics analysis, and serum level of anti-measles antibodies as functional correlates of vaccine-induced immunity. Results Phenotypic signs of B cell hyperactivation were elevated in subjects starting ART later (%DN T-bet+CD11c+ p=0.03; %AM T-bet+CD11c+ p=0.02) and were associated with detectable cell-associated HIV-1 RNA (%AM T-bet+CD11c+ p=0.0003) and transient elevation of the plasma viral load (spike). Furthermore, B-cell hyperactivation appeared to be present in individuals with higher frequency of exhausted T-cells, in particular: %CD4 TIGIT+ were associated with %DN (p=0.008), %DN T-bet+CD11c+ (p=0.0002) and %AM T-bet+CD11c+ (p=0.002) and %CD4 PD-1 were associated with %DN (p=0.048), %DN T-bet+CD11c+ (p=0.039) and %AM T-bet+CD11c+ (p=0.006). The proteomic analysis revealed that subjects with expansion of these atypical B-cells and exhausted T-cells had enrichment of proteins involved in immune inflammation and complement activation pathways. Furthermore, we observed that higher levels of ABCs were associated a reduced capacity to maintain vaccine-induced antibody immunity against measles (%B-cells CD19+CD10- T-bet+, p=0.035). Conclusion We identified that the levels of hyperactivated B cell subsets were strongly affected by time of ART start and associated with clinical, viral, cellular and plasma soluble markers. Furthermore, the expansion of ABCs also had a direct impact on the capacity to develop antibodies response following routine vaccination.
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Affiliation(s)
- Alessandra Ruggiero
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Giuseppe Rubens Pascucci
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
- Chair of Pediatrics Department of Systems Medicine, University of Rome ‘‘Tor Vergata’’, Rome, Italy
| | - Nicola Cotugno
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
- Chair of Pediatrics Department of Systems Medicine, University of Rome ‘‘Tor Vergata’’, Rome, Italy
| | - Sara Domínguez-Rodríguez
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Sanitaria Hospital 12 de Octubre (IMAS12), Madrid, Spain
- Fundación para la Investigación Biomédica del Hospital 12 de Octubre, RITIP (Traslational Research Network in Pediatric Infectious Diseases), Madrid, Spain
| | - Stefano Rinaldi
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Alfredo Tagarro
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Sanitaria Hospital 12 de Octubre (IMAS12), Madrid, Spain
- Fundación para la Investigación Biomédica del Hospital 12 de Octubre, RITIP (Traslational Research Network in Pediatric Infectious Diseases), Madrid, Spain
- Department of Pediatrics, Infanta Sofía University Hospital. Infanta Sofia University Hospital and Henares University Hospital Foundation for Biomedical Research and Innovation (FIIB HUIS HHEN), San Sebastián de los Reyes, Madrid, Spain
- Universidad Europea, Madrid, Spain
| | - Pablo Rojo
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Sanitaria Hospital 12 de Octubre (IMAS12), Madrid, Spain
- Fundación para la Investigación Biomédica del Hospital 12 de Octubre, RITIP (Traslational Research Network in Pediatric Infectious Diseases), Madrid, Spain
| | - Caroline Foster
- Department of Pediatric Infectious Diseases, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Alasdair Bamford
- MRC Clinical Trials Unit at UCL, London, United Kingdom
- Great Ormond Street Hospital for Children NHS Trust, London, United Kingdom
- University College London Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Anita De Rossi
- Department of Oncology, Surgery and Gastroenterology, University of Padova, Padova, Italy
- Istituto Oncologico Veneto (IOV)- IRCCS, Padova, Italy
| | - Eleni Nastouli
- Great Ormond Street Hospital for Children NHS Trust, London, United Kingdom
| | - Nigel Klein
- Infection, Immunity & Inflammation Department, UCL GOS Institute of Child Health, London, United Kingdom
| | - Elena Morrocchi
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Benoit Fatou
- Precision Vaccines Program, Boston Children Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Department of Pathology, Boston Children’s Hospital, Boston, MA, United States
| | - Kinga K. Smolen
- Precision Vaccines Program, Boston Children Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Al Ozonoff
- Precision Vaccines Program, Boston Children Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Michela Di Pastena
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
- UOSD Unit of Clinical Psychology – Dept. of Neuroscience and Neurorehabilitation, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Katherine Luzuriaga
- Program in Molecular Medicine, Umass Chan Medical School, Worcester, MA, United States
| | - Hanno Steen
- Precision Vaccines Program, Boston Children Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Department of Pathology, Boston Children’s Hospital, Boston, MA, United States
| | - Carlo Giaquinto
- Department of Mother and Child Health, University of Padova, Padova, Italy
| | - Philip Goulder
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Paolo Rossi
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
- Chair of Pediatrics Department of Systems Medicine, University of Rome ‘‘Tor Vergata’’, Rome, Italy
| | - Ofer Levy
- Precision Vaccines Program, Boston Children Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Savita Pahwa
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Paolo Palma
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
- Chair of Pediatrics Department of Systems Medicine, University of Rome ‘‘Tor Vergata’’, Rome, Italy
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Pelanda R, Zikherman J. Many Achilles' heels of B and T cell tolerance. Immunol Rev 2022; 307:5-11. [PMID: 35301733 PMCID: PMC8986605 DOI: 10.1111/imr.13076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roberta Pelanda
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado, USA.,Department of Immunology and Genomic Medicine, National Jewish Health, Denver, Colorado, USA
| | - Julie Zikherman
- Division of Rheumatology, Rosalind Russell and Ephraim P. Engelman Arthritis Research Center, Department of Medicine, University of California, San Francisco, California, USA
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