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Schmalzing M, Sander O, Seidl M, Marks R, Blank N, Kötter I, Tiemann M, Backhaus M, Manger B, Hübel K, Müller-Ladner U, Henes J. [Castleman's disease in the rheumatological practice]. Z Rheumatol 2024; 83:316-326. [PMID: 37624374 PMCID: PMC11058943 DOI: 10.1007/s00393-023-01393-8] [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: 06/04/2023] [Indexed: 08/26/2023]
Abstract
The term Castleman's disease encompasses a group of rare lymphoproliferative diseases that show histopathological similarities in lymph node biopsy. Diagnostic criteria and a specific ICD-10 code have been available for a few years. Case studies listed at the beginning illustrate that close cooperation between clinicians and pathologists is required to enable a reliable diagnosis. For an optimal histopathological assessment, the pathologist is also dependent on the removal of a complete lymph node. Before distinguishing a potentially fatal multicentric idiopathic Castleman's disease from the resectable unicentric form, which is important in terms of prognosis and treatment, early diagnosis presupposes that Castleman's disease is considered in the differential diagnosis. Various immune phenomena and overlaps with autoimmune diseases can increase the probability of misdiagnosis or undetected cases in the clinical routine of rheumatologists. The intention of the present overview is therefore to point out the similarities with autoimmune diseases that are relevant for differential diagnoses and to point out situations that justify a review of the previous diagnosis.
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Affiliation(s)
- M Schmalzing
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Deutschland.
| | - O Sander
- Klinik für Rheumatologie, Universitätsklinikum Düsseldorf, Düsseldorf, Deutschland
| | - M Seidl
- Institut für Pathologie, Universitätsklinikum Düsseldorf, Düsseldorf, Deutschland
| | - R Marks
- Klinik für Innere Medizin I, Universitätsklinikum Freiburg, Freiburg, Deutschland
| | - N Blank
- Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - I Kötter
- Klinik für Rheumatologie und Immunologie, Klinikum Bad Bramstedt, Bad Bramstedt, Deutschland
- Rheumatologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Deutschland
| | - M Tiemann
- Institut für HämatoPathologie Hamburg, Hamburg, Deutschland
| | - M Backhaus
- Abt. Innere Medizin - Rheumatologie und klinische Immunologie, Park-Klinik Weissensee (Berlin), Berlin, Deutschland
| | - B Manger
- Medizinische Klinik 3 - Rheumatologie und Immunologie, Universitätsklinikum Erlangen, Erlangen, Deutschland
| | - K Hübel
- Klinik I für Innere Medizin, Universitätsklinikum Köln, Köln, Deutschland
| | - U Müller-Ladner
- Abteilung für Rheumatologie und Klinische Immunologie, Kerckhoff Klinik Bad Nauheim, Bad Nauheim, Deutschland
| | - J Henes
- Medizinische Universitätsklinik Abt. II, Universitätsklinikum Tübingen, Tübingen, Deutschland
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Abraham A, Samaniego-Castruita D, Paladino J, Han I, Ramesh P, Tran MT, Southern RM, Shukla A, Shukla V. Arid1a-dependent canonical BAF complex suppresses inflammatory programs to drive efficient Germinal Center B cell responses. RESEARCH SQUARE 2024:rs.3.rs-3871185. [PMID: 38313292 PMCID: PMC10836118 DOI: 10.21203/rs.3.rs-3871185/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Differentiating B cells in germinal centers (GC) require tightly coordinated transcriptional and epigenetic transitions to generate efficient humoral immune responses. The mammalian Brg1/Brm-associated factor (BAF) complexes are major regulators of nucleosomal remodeling, crucial for cellular differentiation and development, and are commonly mutated in several cancers, including GC-derived B cell lymphomas. However, the specific roles of distinct BAF complexes in GC B cell biology and generation of functional humoral immune responses are not well understood. Here, we show that the A-T Rich Interaction Domain 1a (Arid1a) containing canonical BAF (cBAF) complex is required for maintenance of GCs and therefore high affinity antibody responses. While Arid1a-deficient B cells undergo activation to initiate GC responses, they fail to sustain the GC program resulting in premature GC collapse. We discovered that Arid1a-dependent cBAF activity establishes permissive chromatin landscapes during B cell activation and is concomitantly required to suppress inflammatory gene programs to maintain transcriptional fidelity in early GC B cells. Interestingly, the inflammatory signatures instigated by Arid1a deficiency in early GC B cells recruited neutrophils and inflammatory monocytes and eventually disrupted GC homeostasis. Dampening of inflammatory cues with anti-inflammatory glucocorticoid receptor signaling rescued GC B cell differentiation of Arid1a-deficient B cells, thus highlighting a critical role of inflammation in impeding GC responses. In sum, our work identifies essential functions of Arid1a-dependent BAF activity in promoting efficient GC responses. These findings further support an emerging paradigm in which unrestrained inflammation limits GC-derived humoral responses, as reported in the context of severe bacterial and viral infections.
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Affiliation(s)
- Ajay Abraham
- Department of Cell and Developmental Biology, Northwestern University, Chicago, Illinois, USA, 60611
- Center for Human Immunobiology, Northwestern University, Chicago, Illinois, USA, 60611
| | | | - Jillian Paladino
- Department of Cell and Developmental Biology, Northwestern University, Chicago, Illinois, USA, 60611
| | - Isabella Han
- Department of Cell and Developmental Biology, Northwestern University, Chicago, Illinois, USA, 60611
| | - Prathyaya Ramesh
- Department of Cell and Developmental Biology, Northwestern University, Chicago, Illinois, USA, 60611
| | - Mi Thao Tran
- Department of Cell and Developmental Biology, Northwestern University, Chicago, Illinois, USA, 60611
| | - Rebecca M Southern
- Department of Cell and Developmental Biology, Northwestern University, Chicago, Illinois, USA, 60611
| | - Ashima Shukla
- Department of Cell and Developmental Biology, Northwestern University, Chicago, Illinois, USA, 60611
| | - Vipul Shukla
- Department of Cell and Developmental Biology, Northwestern University, Chicago, Illinois, USA, 60611
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, Illinois, USA, 60611
- Center for Human Immunobiology, Northwestern University, Chicago, Illinois, USA, 60611
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Song X, Zhang Y, Zhao L, Fan J, Peng T, Ma Y, Guo N, Wang X, Liu X, Liu Z, Wang L. Analyzation of the Peripheral Blood Mononuclear Cells Atlas and Cell Communication of Rheumatoid Arthritis Patients Based on Single-Cell RNA-Seq. J Immunol Res 2023; 2023:6300633. [PMID: 37600067 PMCID: PMC10439836 DOI: 10.1155/2023/6300633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/22/2023] Open
Abstract
Background Rheumatoid arthritis (RA) is a common chronic inflammatory autoimmune disease with a multifactorial etiology. Peripheral blood is the main channel of the immune system, and peripheral blood mononuclear cells (PBMCs) are the immune cells that initiate the autoimmune inflammatory process. However, there are few reports on the mechanisms of peripheral blood immunity in RA. Methods ScRNA-seq was performed on four RA samples and integrated with single-cell transcriptome data from four healthy control samples downloaded from publicly available databases for analysis. Results A total of 52,073 cells were used for descending clustering analysis to map RA peripheral blood immune cells at single-cell resolution. Redimensional clustering analysis of four major immune cells (T cells, monocytes, B cells, and natural killer cells) revealed that double-negative T (DNT) cells were significantly altered in abundance and function. And a number of genes (including SOCS3, cAMP-responsive element modulator (CREM), B2M, MTFP1, RSRP1, and YWHAB) were specifically downregulated in DNT cells. RA T cells, especially DNT cells, exhibit significant metabolic defects and dysfunction, mainly in the form of inhibition of oxidative phosphorylation, ATP synthesis, and major histocompatibility complex (MHC)-I-mediated antigen presentation. In addition, cellular communication networks were established, and it was evident that RA is significantly attenuated in the number and intensity of cellular communication. Monocytes and T cells play key roles in the process of the immune inflammatory response through CCL and MHC-related pathways. Conclusions This study describes the landscape of the peripheral blood immune system and cell communication in RA, characterizes the abundance of PBMCs, gene expression profiles, and changes in signaling pathways in RA patients, and identifies several key cell subpopulations (DNT and classic monocytes) and specific genes (SOCS3, CREM, B2M, MTFP1, RSRP1, and YWHAB). Meanwhile, we propose that classic monocytes in peripheral blood may migrate to sites of inflammation in synovial tissue under the chemotaxis of the chemokines CCL3 and CCL3L1, differentiate into macrophages, secrete proinflammatory cytokines, and thus participate in the inflammatory response. These findings provide new insights for the future elucidation of the peripheral blood immune mechanisms of RA and the search for new clinical therapeutic targets.
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Affiliation(s)
- Xinqiang Song
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
- College of Medicine, Xinyang Normal University, Xinyang 464000, China
| | - Yu Zhang
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
| | - Lijun Zhao
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
| | - Jinke Fan
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
| | - Tao Peng
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
| | - Ying Ma
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
| | | | - Xiaotong Wang
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
| | - Xudong Liu
- School of Medicine, Chongqing University, Chongqing 400044, China
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - Zhe Liu
- Department of Computer Science, City University of Hong Kong, Hong Kong, China
| | - Lei Wang
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
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Olson WJ, Jakic B, Labi V, Woelk J, Derudder E, Baier G, Hermann-Kleiter N. A role for the nuclear receptor NR2F6 in peritoneal B cell homeostasis. Front Immunol 2022; 13:845235. [PMID: 36052079 PMCID: PMC9425112 DOI: 10.3389/fimmu.2022.845235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 07/18/2022] [Indexed: 11/19/2022] Open
Abstract
B cells are key mediators of humoral immunity. Mature B cells fall into various sub-classes that can be separated by their ontogeny, expression of cell surface markers, anatomical location, and function. B1 subsets play important roles in natural immunity and constitute the majority of B cells in newborns. In the adult, B1 cells predominate in the pleural and peritoneal cavities, while the mature B2 follicular subset makes up the major fraction of B cells in lymphoid tissue, although important subsets of antibody-secreting B1 cells are also present at these sites. B1 cells are the main producers of natural IgM but can also contribute to elimination of some pathogens, while B2 cells primarily mediate response to foreign antigens. The differential molecular underpinning of the B1 and B2 subsets remains incompletely understood. Here we demonstrate that germline-deficiency of the orphan nuclear receptor NR2F6 causes a partial loss of B1b and B2 B cells in the peritoneum while leaving peritoneal B1a cells unaltered. A competitive bone marrow chimera in Nr2f6+/+ host mice produced similar numbers of Nr2f6+/+ and Nr2f6-/- peritoneal B1b and B2 cells. The proliferation of Nr2f6-/- peritoneal B cells was not altered, while the migration marker CXCR5 was reduced on all subsets but Beta7-integrin was reduced only on peritoneal B1b and B2 cells. Similarly, B1b and B2 but not B1a cells, exhibited significantly reduced survival.
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Affiliation(s)
- William J. Olson
- Translational Cell Genetics, Department of Pharmacology and Genetics, Medical University of Innsbruck, Innsbruck, Austria
- Institute for Biomedical Aging Research, University of Innsbruck, Innsbruck, Austria
- *Correspondence: William J. Olson, ; Natascha Hermann-Kleiter,
| | - Bojana Jakic
- Translational Cell Genetics, Department of Pharmacology and Genetics, Medical University of Innsbruck, Innsbruck, Austria
| | - Verena Labi
- Institute of Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Johannes Woelk
- Translational Cell Genetics, Department of Pharmacology and Genetics, Medical University of Innsbruck, Innsbruck, Austria
| | - Emmanuel Derudder
- Institute for Biomedical Aging Research, University of Innsbruck, Innsbruck, Austria
| | - Gottfried Baier
- Translational Cell Genetics, Department of Pharmacology and Genetics, Medical University of Innsbruck, Innsbruck, Austria
| | - Natascha Hermann-Kleiter
- Translational Cell Genetics, Department of Pharmacology and Genetics, Medical University of Innsbruck, Innsbruck, Austria
- *Correspondence: William J. Olson, ; Natascha Hermann-Kleiter,
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Tseng CC, Lin YZ, Lin CH, Hwang DY, Li RN, Tsai WC, Ou TT, Wu CC, Lin YC, Sung WY, Chen KY, Chang SJ, Yen JH. Genetic and epigenetic alterations of cyclic AMP response element modulator in rheumatoid arthritis. Eur J Clin Invest 2022; 52:e13715. [PMID: 34783021 DOI: 10.1111/eci.13715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/01/2021] [Accepted: 10/18/2021] [Indexed: 12/07/2022]
Abstract
BACKGROUND Genetic and epigenetic factors are strongly associated with the autoimmune disease rheumatoid arthritis (RA). Cyclic AMP response element modulator (CREM), a gene related to immune system regulation, has been implicated in various immune-mediated inflammatory processes, although it remains unknown whether CREM is involved in RA. METHODS This study enrolled 278 RA patients and 262 controls. Three variants [rs12765063, rs17499247, rs1213386] were identified through linkage disequilibrium and expression quantitative trait locus analysis, and CREM transcript abundance was determined by quantitative real-time polymerase chain reaction. The identified variants were genotyped using the TaqMan Allelic Discrimination assay, and CREM promoter methylation was assessed by bisulphite sequencing. Differences between groups and correlations between variables were assessed with Student's t-tests and Pearson's correlation coefficients. Associations between phenotypes and genotypes were evaluated with logistic regression. RESULTS Rheumatoid arthritis patients exhibited increased CREM expression (p < .0001), which was decreased by methotrexate (p = .0223) and biologics (p = .0001), but could not be attributed to CREM variants. Interestingly, rs17499247 displayed a significant association with serositis (p = .0377), and rs1213386 increased the risk of lymphadenopathy (p = .0398). Furthermore, seven CpG sites showed decreased methylation in RA (p = .0477~ p < .0001). CONCLUSIONS Collectively, our results indicate that CREM hypomethylation and CREM upregulation occur in RA and that CREM variants are involved in the development of serositis and lymphadenopathy in RA. This study highlights the novel roles of CREM in RA pathophysiology.
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Affiliation(s)
- Chia-Chun Tseng
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yuan-Zhao Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Hui Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Daw-Yang Hwang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Ruei-Nian Li
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Chan Tsai
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Tsan-Teng Ou
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Cheng-Chin Wu
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yu-Chih Lin
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Medical Humanities and Education, School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wan-Yu Sung
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Kuan-Yu Chen
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Shun-Jen Chang
- Department of Kinesiology, Health and Leisure Studies, National University of Kaohsiung, Kaohsiung, Taiwan
| | - Jeng-Hsien Yen
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung, Taiwan.,Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
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Torrelles JB, Restrepo BI, Bai Y, Ross C, Schlesinger LS, Turner J. The Impact of Aging on the Lung Alveolar Environment, Predetermining Susceptibility to Respiratory Infections. FRONTIERS IN AGING 2022; 3:818700. [PMID: 35821836 PMCID: PMC9261427 DOI: 10.3389/fragi.2022.818700] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/03/2022] [Indexed: 12/15/2022]
Abstract
Respiratory infections are one of the top causes of death in the elderly population, displaying susceptibility factors with increasing age that are potentially amenable to interventions. We posit that with increasing age there are predictable tissue-specific changes that prevent the immune system from working effectively in the lung. This mini-review highlights recent evidence for altered local tissue environment factors as we age focusing on increased tissue oxidative stress with associated immune cell changes, likely driven by the byproducts of age-associated inflammatory disease. Potential intervention points are presented.
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Affiliation(s)
- Jordi B. Torrelles
- Population Health and Host-Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
| | - Blanca I. Restrepo
- School of Public Health in Brownsville, University of Texas Health Houston, Brownsville, TX, United States
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Edinburg, TX, United States
| | - Yidong Bai
- Department of Cell Systems and Anatomy, UT-Health San Antonio, San Antonio, TX, United States
| | - Corinna Ross
- Population Health and Host-Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
- Soutwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, United States
| | - Larry S. Schlesinger
- Population Health and Host-Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
| | - Joanne Turner
- Population Health and Host-Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, United States
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