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De Biasi S, Mattioli M, Meschiari M, Lo Tartaro D, Paolini A, Borella R, Neroni A, Fidanza L, Busani S, Girardis M, Coppi F, Mattioli AV, Guaraldi G, Mussini C, Cossarizza A, Gibellini L. Prognostic immune markers identifying patients with severe COVID-19 who respond to tocilizumab. Front Immunol 2023; 14:1123807. [PMID: 37215114 PMCID: PMC10196248 DOI: 10.3389/fimmu.2023.1123807] [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: 12/14/2022] [Accepted: 04/26/2023] [Indexed: 05/24/2023] Open
Abstract
Introduction A growing number of evidences suggest that the combination of hyperinflammation, dysregulated T and B cell response and cytokine storm play a major role in the immunopathogenesis of severe COVID-19. IL-6 is one of the main pro-inflammatory cytokines and its levels are increased during SARS-CoV-2 infection. Several observational and randomized studies demonstrated that tocilizumab, an IL-6R blocker, improves survival in critically ill patients both in infectious disease and intensive care units. However, despite transforming the treatment options for COVID-19, IL-6R inhibition is still ineffective in a fraction of patients. Methods In the present study, we investigated the impact of two doses of tocilizumab in patients with severe COVID-19 who responded or not to the treatment by analyzing a panel of cytokines, chemokines and other soluble factors, along with the composition of peripheral immune cells, paying a particular attention to T and B lymphocytes. Results We observed that, in comparison with non-responders, those who responded to tocilizumab had different levels of several cytokines and different T and B cells proportions before starting therapy. Moreover, in these patients, tocilizumab was further able to modify the landscape of the aforementioned soluble molecules and cellular markers. Conclusions We found that tocilizumab has pleiotropic effects and that clinical response to this drug remain heterogenous. Our data suggest that it is possible to identify patients who will respond to treatment and that the administration of tocilizumab is able to restore the immune balance through the re-establishment of different cell populations affected by SARS-COV-2 infection, highlighting the importance of temporal examination of the pathological features from the diagnosis.
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Affiliation(s)
- Sara De Biasi
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
| | - Marco Mattioli
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
| | - Marianna Meschiari
- Infectious Diseases Clinics, Azienda Ospedaliera Universitaria (AOU) Policlinico and University of Modena and Reggio Emilia, Modena, Italy
| | - Domenico Lo Tartaro
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
| | - Annamaria Paolini
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
| | - Rebecca Borella
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
| | - Anita Neroni
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
| | - Lucia Fidanza
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
| | - Stefano Busani
- Department of Anesthesia and Intensive Care, Azienda Ospedaliera Universitaria (AOU) Policlinico and University of Modena and Reggio Emilia, Modena, Italy
| | - Massimo Girardis
- Department of Anesthesia and Intensive Care, Azienda Ospedaliera Universitaria (AOU) Policlinico and University of Modena and Reggio Emilia, Modena, Italy
| | - Francesca Coppi
- Department of Metabolic Sciences and Neurosciences, Azienda Ospedaliera Universitaria (AOU) Policlinico and University of Modena and Reggio Emilia, Modena, Italy
| | - Anna Vittoria Mattioli
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
| | - Giovanni Guaraldi
- Infectious Diseases Clinics, Azienda Ospedaliera Universitaria (AOU) Policlinico and University of Modena and Reggio Emilia, Modena, Italy
| | - Cristina Mussini
- Infectious Diseases Clinics, Azienda Ospedaliera Universitaria (AOU) Policlinico and University of Modena and Reggio Emilia, Modena, Italy
| | - Andrea Cossarizza
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
- National Institute for Cardiovascular Research, Bologna, Italy
| | - Lara Gibellini
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
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Liu Y, Zhang H, Zhang TX, Yuan M, Du C, Zeng P, Huang Z, Jia D, Yang G, Shi FD, Zhang C. Effects of Tocilizumab Therapy on Circulating B Cells and T Helper Cells in Patients With Neuromyelitis Optica Spectrum Disorder. Front Immunol 2021; 12:703931. [PMID: 34394101 PMCID: PMC8360623 DOI: 10.3389/fimmu.2021.703931] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/14/2021] [Indexed: 11/13/2022] Open
Abstract
Tocilizumab, a humanized anti-IL-6 receptor monoclonal antibody, showed its therapeutic efficacy on neuromyelitis optica spectrum disorder (NMOSD). To assess the immunological effects of this drug on B cells, follicular T helper (Tfh) cells, and peripheral T helper (Tph) cells in patients with NMOSD, peripheral B cell and Tfh cell phenotypes were evaluated in 26 patients with NMOSD before and after tocilizumab treatment by nine-color flow cytometry, as well as the expression of costimulatory and co-inhibitory molecules on B cells. Results showed that the frequency of CD27+IgD− switched memory B cells, CD27-IgD- double-negative B cells, and CD27highCD38high antibody-secreting cells was increased in patients with NMOSD. Tocilizumab treatment led to a significant shift of B cells to naïve B cells from memory B cells after 3 months. Three markers on B cells associated with T-cell activation (i.e., CD86 CD69, and HLA-DR) were downregulated after tocilizumab treatment. The frequencies of total Tfh and Tph cells were decreased, whereas that of follicular regulatory T cells tended to increase. Intrinsic increased PD-L1 and PD-L2 expression was characteristic of B cells in patients with NMOSD. Tocilizumab selectively restored PD-L1 on B-cell subsets. These results provided evidence that tocilizumab enhanced B- and T-cell homoeostasis by regulating B-cell differentiation and inhibiting lymphocyte activation in patients with NMOSD.
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Affiliation(s)
- Ye Liu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Huiming Zhang
- Department of Neurology, The Third People's Hospital of Datong, Datong, China
| | - Tian-Xiang Zhang
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Meng Yuan
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Chen Du
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Pei Zeng
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Zhenning Huang
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Dongmei Jia
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Guili Yang
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Fu-Dong Shi
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China.,Jing-Jin Center for Neuroinflammation, China National Clinical Research Center for Neurological Diseases, Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Chao Zhang
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin Neurological Institute, Key Laboratory of Post-Trauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China.,Jing-Jin Center for Neuroinflammation, China National Clinical Research Center for Neurological Diseases, Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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3
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Huang J, Pearson JA, Peng J, Hu Y, Sha S, Xing Y, Huang G, Li X, Hu F, Xie Z, Xiao Y, Luo S, Chao C, Wong FS, Zhou Z, Wen L. Gut microbial metabolites alter IgA immunity in type 1 diabetes. JCI Insight 2020; 5:135718. [PMID: 32298241 DOI: 10.1172/jci.insight.135718] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/09/2020] [Indexed: 12/31/2022] Open
Abstract
The incidence of type 1 diabetes (T1D) has been increasing among children and adolescents, in which environmental factors, including gut microbiota, play an important role. However, the underlying mechanisms are yet to be determined. Here, we show that patients with newly diagnosed T1D displayed not only a distinct profile of gut microbiota associated with decreased short-chain fatty acids (SCFAs) production, but also an altered IgA-mediated immunity compared with healthy control subjects. Using germ-free NOD mice, we demonstrate that gut microbiota from patients with T1D promoted different IgA-mediated immune responses compared with healthy control gut microbiota. Treatment with the SCFA, acetate, reduced gut bacteria-induced IgA response accompanied by decreased severity of insulitis in NOD mice. We believe our study provides new insights into the functional effects of gut microbiota on inducing IgA immune response in T1D, suggesting that SCFAs might be potential therapeutic agents in T1D prevention and/or treatment.
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Affiliation(s)
- Juan Huang
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China.,Section of Endocrinology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - James A Pearson
- Section of Endocrinology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Jian Peng
- Section of Endocrinology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Youjia Hu
- Section of Endocrinology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Sha Sha
- Section of Endocrinology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Yanpeng Xing
- Section of Endocrinology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Gan Huang
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Xia Li
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Fang Hu
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Zhiguo Xie
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Yang Xiao
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Shuoming Luo
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Chen Chao
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - F Susan Wong
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Zhiguang Zhou
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Key Laboratory of Diabetes Immunology, Ministry of Education, Central South University, National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Li Wen
- Section of Endocrinology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
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Bingham CO, Rizzo W, Kivitz A, Hassanali A, Upmanyu R, Klearman M. Humoral immune response to vaccines in patients with rheumatoid arthritis treated with tocilizumab: results of a randomised controlled trial (VISARA). Ann Rheum Dis 2014; 74:818-22. [PMID: 24448345 PMCID: PMC4392200 DOI: 10.1136/annrheumdis-2013-204427] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 12/10/2013] [Indexed: 11/06/2022]
Abstract
Objective To evaluate the effect of tocilizumab (TCZ), an interleukin 6 receptor inhibitor, on humoral immune responses to immunisations in patients with rheumatoid arthritis (RA). Methods Patients with RA with inadequate response/intolerance to one or more anti-tumour necrosis factor-α agents were randomly assigned (2:1) to TCZ 8 mg/kg intravenously every 4 weeks plus methotrexate (MTX) or MTX alone up until week 8. Serum was collected before vaccination at week 3, antibody titres were evaluated at week 8, and then all patients received TCZ+MTX through week 20. End points included proportion of patients responding to ≥6/12 pneumococcal polysaccharide vaccine (PPV23) serotypes (primary) and proportions responding to tetanus toxoid vaccine (TTV; secondary) at week 8. Results 91 patients were randomised. At week 8, 60.0% of TCZ+MTX and 70.8% of MTX patients responded to ≥6/12 PPV23 serotypes, with insufficient evidence for any difference in treatments (10.8% (95% CI −33.7 to 12.0)), and 42.0% and 39.1%, respectively, responded to TTV. Two of three TCZ+MTX patients with non-protective baseline TTV antibody titres achieved protective levels by week 8. The safety profile of TCZ was consistent with previous reports. Conclusions Short-term TCZ treatment does not significantly attenuate humoral responses to PPV23 or TTV. To maximise vaccine response, patients should be up to date with immunisations before starting TCZ treatment. ClinicalTrials.gov identifier NCT01163747.
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Affiliation(s)
- Clifton O Bingham
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Warren Rizzo
- Advanced Arthritis Care, Scottsdale, Arizona, USA
| | - Alan Kivitz
- Altoona Center for Clinical Research, Duncansville, Pennsylvania, USA
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5
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Tooze RM. A replicative self-renewal model for long-lived plasma cells: questioning irreversible cell cycle exit. Front Immunol 2013; 4:460. [PMID: 24385976 PMCID: PMC3866514 DOI: 10.3389/fimmu.2013.00460] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 12/02/2013] [Indexed: 12/23/2022] Open
Abstract
Plasma cells are heterogenous in terms of their origins, secretory products, and lifespan. A current paradigm is that cell cycle exit in plasma cell differentiation is irreversible, following a pattern familiar in short-lived effector populations in other hemopoietic lineages. This paradigm no doubt holds true for many plasma cells whose lifespan can be measured in days following the completion of differentiation. Whether this holds true for long-lived bone marrow plasma cells that are potentially maintained for the lifespan of the organism is less apparent. Added to this the mechanisms that establish and maintain cell cycle quiescence in plasma cells are incompletely defined. Gene expression profiling indicates that in the transition of human plasmablasts to long-lived plasma cells a range of cell cycle regulators are induced in a pattern that suggests a quiescence program with potential for cell cycle re-entry. Here a model of relative quiescence with the potential for replicative self-renewal amongst long-lived plasma cells is explored. The implications of such a mechanism would be diverse, and the argument is made here that current evidence is not sufficiently strong that the possibility should be disregarded.
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Affiliation(s)
- Reuben M Tooze
- Section of Experimental Haematology, Leeds Institute of Cancer and Pathology, University of Leeds , Leeds , UK ; Haematological Malignancy Diagnostic Service, Leeds Teaching Hospitals NHS Trust , Leeds , UK
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Rationale of anti-CD19 immunotherapy: an option to target autoreactive plasma cells in autoimmunity. Arthritis Res Ther 2012; 14 Suppl 5:S1. [PMID: 23281743 PMCID: PMC3535716 DOI: 10.1186/ar3909] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Anti-CD20 therapy using rituximab directly targeting B cells has been approved for treatment of non-Hodgkin lymphoma, rheumatoid arthritis and anti-neutrophil cytoplasmic antibody-associated vasculitides and has led to reappreciation of B-lineage cells for anti-rheumatic treatment strategies. Moreover, blocking B-cell activating factor with belimumab, a drug that is licensed for treatment of active, seropositive systemic lupus erythematosus (SLE), represents an alternative, indirect anti-B-cell approach interfering with proper B-cell development. While these approaches apparently have no substantial impact on antibody-secreting plasma cells, challenges to improve the treatment of difficult-to-treat patients with SLE remain. In this context, anti-CD19 antibodies have the promise to directly target autoantibody-secreting plasmablasts and plasma cells as well as early B-cell differentiation stages not covered by anti-CD20 therapy. Currently known distinct expression profiles of CD19 by human plasma cell subsets, experiences with anti-CD19 therapies in malignant conditions as well as the rationale of targeting autoreactive plasma cells in patients with SLE are discussed in this review.
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Tangye SG. Staying alive: regulation of plasma cell survival. Trends Immunol 2011; 32:595-602. [PMID: 22001488 DOI: 10.1016/j.it.2011.09.001] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 09/01/2011] [Accepted: 09/06/2011] [Indexed: 01/09/2023]
Abstract
On describing the catastrophic effect of the plague during the Peloponnesian War, Greek historian Thucydides (c ∼450 BC) made the prescient observation that the "same man was never attacked twice - never at least fatally". This is probably the first description of the mammalian immune systems' remarkable ability to elicit a pathogen-specific response that potentially protects the host for its lifetime. This protection is largely mediated by plasma cells (PCs) that produce copious quantities of antibodies for extended periods of time, even after pathogen clearance. Here, I review the requirements for PC longevity in mice and humans, in particular the roles of survival niches in bone marrow and other tissues, and the "dialogue" between PCs and other cells that are crucial for long-lived humoral immunity.
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Affiliation(s)
- Stuart G Tangye
- Immunology Research Program, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.
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Catellani S, Pierri I, Gobbi M, Poggi A, Zocchi MR. Imatinib treatment induces CD5+ B lymphocytes and IgM natural antibodies with anti-leukemic reactivity in patients with chronic myelogenous leukemia. PLoS One 2011; 6:e18925. [PMID: 21533122 PMCID: PMC3078937 DOI: 10.1371/journal.pone.0018925] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Accepted: 03/11/2011] [Indexed: 11/19/2022] Open
Abstract
Imatinib mesylate is a first line treatment of Chronic Myelogenous Leukemia and of a rare form of gastrointestinal stromal cancer, where the response to the drug is also linked to the immune system activation with production of antineoplastic cytokines. In this study, forty patients in the chronic phase of disease, treated with imatinib mesylate, were analyzed. Bone marrow aspirates were drawn at diagnosis, after 3, 6, 12, 18 months for haematological, cytofluorimetric, cytogenetic, biomolecular evaluation and cytokine measurement. Responder and non responder patients were defined according to the European LeukemiaNet recommendations. In responder patients (n = 32), the percentage of bone marrow CD20(+)CD5(+)sIgM(+) lymphocytes, and the plasma levels of IgM, were significantly higher, at 3 months and up to 9 months, than in non responders. These IgM reacted with O-linked sugars expressed by leukemic cells and could induce tumor cell apoptosis. In responder patients the stromal-derived factor-1 and the B-lymphocyte-activating factor of the tumor necrosis factor family significantly raised in the bone marrow after imatinib administration, together with the bone morphogenetic proteins-2 and -7. All patients with high number of CD20(+)CD5(+)sIgM(+) cells and high stromal-derived factor-1 and B lymphocyte activating factor levels, underwent complete cytogenetic and/or molecular remission by 12 months. We propose that CD20(+)CD5(+)sIgM(+) lymphocytes producing anti-carbohydrate antibodies with anti-tumor activity, might contribute to the response to imatinib treatment. As in multivariate analysis bone marrow CD20(+)CD5(+)sIgM(+) cells and stromal-derived factor-1 and B-lymphocyte-activating factor levels were significantly related to cytogenetical and molecular changes, they might contribute to the definition of the pharmacological response.
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Affiliation(s)
- Silvia Catellani
- Clinical Oncohaematology, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Ivana Pierri
- Clinical Oncohaematology, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Marco Gobbi
- Clinical Oncohaematology, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Alessandro Poggi
- Unit of Molecular Oncology and Angiogenesis, National Institute for Cancer Research, Genoa, Italy
- * E-mail: (AP); (MRZ)
| | - Maria Raffaella Zocchi
- Division of Immunology, Transplants and Infectious Diseases, Scientific Institute San Raffaele, Milan, Italy
- * E-mail: (AP); (MRZ)
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Mathian A, Gallegos M, Pascual V, Banchereau J, Koutouzov S. Interferon-α induces unabated production of short-lived plasma cells in pre-autoimmune lupus-prone (NZB×NZW)F1 mice but not in BALB/c mice. Eur J Immunol 2011; 41:863-72. [PMID: 21312191 DOI: 10.1002/eji.201040649] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 11/03/2010] [Accepted: 12/13/2010] [Indexed: 01/09/2023]
Abstract
IFN-α is known to play a critical role in the pathogenesis of systemic lupus erythematosus (SLE), but the mechanisms remain unclear. We previously showed that within weeks, exposure to IFN-α in vivo induces lupus in pre-autoimmune lupus-prone NZB×NZW F1 (NZB/W) but not in BALB/c mice. In the current study, we show that in vivo expression of IFN-α induces sustained B-cell proliferation in both BALB/c and NZB/W mice. In NZB/W but not BALB/c mice, B-cell proliferation was accompanied by a rapid and unabated production of autoantibody-secreting cells (ASCs) in secondary lymphoid organs, suggesting that a B-cell checkpoint is altered in the autoimmune background. The majority (>95%) of ASCs elicited in IFN-α-treated NZB/W mice were short-lived and occurred without the induction of long-lived plasma cells. A short course of cyclophosphamide caused a sharp drop in IFN-α-elicited short-lived plasma cells, but the levels recovered within days following termination of treatment. Thus, our work provides new insights into effectiveness and limitations of the current SLE therapies.
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Affiliation(s)
- Alexis Mathian
- Baylor Institute for Immunology Research, Dallas, TX 75204, USA
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Yoshida T, Mei H, Dörner T, Hiepe F, Radbruch A, Fillatreau S, Hoyer BF. Memory B and memory plasma cells. Immunol Rev 2010; 237:117-39. [PMID: 20727033 DOI: 10.1111/j.1600-065x.2010.00938.x] [Citation(s) in RCA: 215] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Vaccination provides a powerful means to control infections. It exploits and exemplifies the ability of the immune system to preserve the information that a specific pathogen has been encountered in the past. The cells and molecular mechanisms of immunological memory are still being discussed controversially. Here, we review the current concepts of memory B cells, the signals involved in their maintenance, and their role in enhanced secondary reactions. Memory plasma cells, secreting protective antibodies over lifetime, have been recognized only recently. Their characterization as cells resting in terms of proliferation and migration, and surviving in dedicated stromal niches, in the absence of antigen, has generated new concepts of how memory cells in general are organized by stroma cells, the 'resting memory'. In autoimmunity and chronic inflammation, memory B cells and memory plasma cells can be essential players, and they require special attention, as they do not respond to most conventional therapies. Their selective targeting will depend on a molecular understanding of their lifestyle.
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Affiliation(s)
- Taketoshi Yoshida
- Charité Centre 12, Clinic for Internal Medicine, Rheumatology, Clinical Immunology, Charité University Hospital Berlin, Berlin, Germany
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Lissilaa R, Buatois V, Magistrelli G, Williams AS, Jones GW, Herren S, Shang L, Malinge P, Guilhot F, Chatel L, Hatterer E, Jones SA, Kosco-Vilbois MH, Ferlin WG. Although IL-6 trans-signaling is sufficient to drive local immune responses, classical IL-6 signaling is obligate for the induction of T cell-mediated autoimmunity. THE JOURNAL OF IMMUNOLOGY 2010; 185:5512-21. [PMID: 20870936 DOI: 10.4049/jimmunol.1002015] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
IL-6-mediated T cell-driven immune responses are associated with signaling occurring through the membrane-bound cognate receptor α-chain (mIL-6Rα). Once formed, IL-6-mIL-6Rα complexes induce the homodimerization and subsequent phosphorylation of the ubiquitously expressed signal-transducing protein, gp130. This signaling event is defined as classical IL-6 signaling. However, many inflammatory processes assigned to IL-6 may be mediated via binding a naturally occurring soluble IL-6Rα, which forms an agonistic complex (IL-6/soluble IL-6Rα) capable of evoking responses on a wide range of cell types that lack mIL-6Rα (IL-6 trans-signaling). To dissect the differential contribution of the two IL-6 signaling pathways in cell-mediated inflammatory processes, we pharmaceutically targeted each using two murine models of human arthritis. Whereas intra-articular neutralization of trans-signaling attenuated local inflammatory responses, the classical pathway was found to be obligate and sufficient to induce pathogenic T cells and humoral responses, leading to systemic disease. Our data illustrate that mechanisms occurring in the secondary lymphoid organs underlying arthropathies are mediated via the classical pathway of IL-6 signaling, whereas trans-signaling contributes only at the local site, that is, in the affected tissues.
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Youd M, Blickarz C, Woodworth L, Touzjian T, Edling A, Tedstone J, Ruzek M, Tubo R, Kaplan J, Lodie T. Allogeneic mesenchymal stem cells do not protect NZBxNZW F1 mice from developing lupus disease. Clin Exp Immunol 2010; 161:176-86. [PMID: 20456409 DOI: 10.1111/j.1365-2249.2010.04158.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cell (MSC) therapy has shown promise clinically in graft-versus-host disease and in preclinical animal models of T helper type 1 (Th1)-driven autoimmune diseases, but whether MSCs can be used to treat autoimmune disease in general is unclear. Here, the therapeutic potential of MSCs was tested in the New Zealand black (NZB)xNew Zealand white (NZW) F1 (NZB/W) lupus mouse model. The pathogenesis of systemic lupus erythematosus involves abnormal B and T cell activation leading to autoantibody formation. To test whether the immunomodulatory activity of MSCs would inhibit the development of autoimmune responses and provide a therapeutic benefit, NZB/W mice were treated with Balb/c-derived allogeneic MSCs starting before or after disease onset. Systemic MSC administration worsened disease and enhanced anti-double-stranded DNA (dsDNA) autoantibody production. The increase in autoantibody titres was accompanied by an increase in plasma cells in the bone marrow, an increase in glomerular immune complex deposition, more severe kidney pathology, and greater proteinuria. Co-culturing MSCs with plasma cells purified from NZB/W mice led to an increase in immunoglobulin G antibody production, suggesting that MSCs might be augmenting plasma cell survival and function in MSC-treated animals. Our results suggest that MSC therapy may not be beneficial in Th2-type T cell- and B cell-driven diseases such as lupus and highlight the need to understand further the appropriate application of MSC therapy.
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Affiliation(s)
- M Youd
- Stem Cell Biology, Genzyme Corporation, Framingham, MA 01701, USA.
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13
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Cain D, Kondo M, Chen H, Kelsoe G. Effects of acute and chronic inflammation on B-cell development and differentiation. J Invest Dermatol 2009; 129:266-77. [PMID: 19148216 DOI: 10.1038/jid.2008.286] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Recently, our understanding of hematopoiesis and the development of the immune system has fundamentally changed, leading to significant discoveries with important clinical relevance. Hematopoiesis, once described in terms of irreversible and discrete developmental branch points, is now understood to exist as a collection of alternative developmental pathways capable of generating functionally identical progeny. Developmental commitment to a particular blood-cell lineage is gradually acquired and reflects both cell intrinsic and extrinsic signals. Chief among the extrinsic factors are the environmental cues of hematopoietic microenvironments that comprise specific "developmental niches" that support hematopoietic stem and progenitor cells. Most of this new understanding comes from the study of normal, steady-state hematopoiesis, but there is ample reason to expect that special developmental and/or differentiative mechanisms operate in response to inflammation. For example, both stem and progenitor cells are now known to express Toll-like receptors that can influence hematopoietic cell fates in response to microbial products. Likewise, proinflammatory cytokines mobilize hematopoietic stem cells to peripheral tissues. In this Perspective, we review inflammation's effects on central and extramedullary B lymphopoiesis and discuss the potential consequences of peripheral B-cell development in the context of systemic autoimmune diseases.
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Affiliation(s)
- Derek Cain
- Department of Immunology, Duke University, Durham, North Carolina 27710, USA
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14
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Prather WR, Toren A, Meiron M. Placental-derived and expanded mesenchymal stromal cells (PLX-I) to enhance the engraftment of hematopoietic stem cells derived from umbilical cord blood. Expert Opin Biol Ther 2008; 8:1241-50. [DOI: 10.1517/14712598.8.8.1241] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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15
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Emslie D, D'Costa K, Hasbold J, Metcalf D, Takatsu K, Hodgkin PO, Corcoran LM. Oct2 enhances antibody-secreting cell differentiation through regulation of IL-5 receptor alpha chain expression on activated B cells. ACTA ACUST UNITED AC 2008; 205:409-21. [PMID: 18250192 PMCID: PMC2271016 DOI: 10.1084/jem.20072049] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Mice lacking a functional gene for the Oct2 transcriptional activator display several developmental and functional deficiencies in the B lymphocyte lineage. These include defective B cell receptor (BCR) and Toll-like receptor 4 signaling, an absence of B-1 and marginal zone populations, and globally reduced levels of serum immunoglobulin (Ig) in naive and immunized animals. Oct2 was originally identified through its ability to bind to regulatory regions in the Ig loci, but genetic evidence has not supported an essential role for Oct2 in the expression of Ig genes. We describe a new Oct2-mediated role in B cells. Oct2 augments the ability of activated B cells to differentiate to antibody-secreting plasma cells (ASCs) under T cell-dependent conditions through direct regulation of the gene encoding the alpha chain of the interleukin (IL) 5 receptor. Ectopic expression of IL-5Ralpha in oct2-deficient B cells largely restores their ability to differentiate to functional ASCs in vitro but does not correct other phenotypic defects in the mutants, such as the maturation and specialization of peripheral B cells, which must therefore rely on distinct Oct2 target genes. IL-5 augments ASC differentiation in vitro, and we show that IL-5 directly activates the plasma cell differentiation program by enhancing blimp1 expression.
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Affiliation(s)
- Dianne Emslie
- Immunology Division, The Walter and Eliza Hall Institute, Parkville, Victoria 3050, Australia
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16
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APRIL is critical for plasmablast survival in the bone marrow and poorly expressed by early-life bone marrow stromal cells. Blood 2008; 111:2755-64. [PMID: 18180376 DOI: 10.1182/blood-2007-09-110858] [Citation(s) in RCA: 269] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The persistence of serum IgG antibodies elicited in human infants is much shorter than when such responses are elicited later in life. The reasons for this rapid waning of antigen-specific antibodies elicited in infancy are yet unknown. We have recently shown that adoptively transferred tetanus toxoid (TT)-specific plasmablasts (PBs) efficiently reach the bone marrow (BM) of infant mice. However, TT-specific PBs fail to persist in the early-life BM, suggesting that they fail to receive the molecular signals that support their survival/differentiation. Using a proliferation-inducing ligand (APRIL)- and B-cell activating factor (BAFF) B-lymphocyte stimulator (BLyS)-deficient mice, we demonstrate here that APRIL is a critical factor for the establishment of the adult BM reservoir of anti-TT IgG-secreting cells. Through in vitro analyses of PB/plasma cell (PC) survival/differentiation, we show that APRIL induces the expression of Bcl-X(L) by a preferential binding to heparan sulfate proteoglycans at the surface of CD138(+) cells. Last, we identify BM-resident macrophages as the main cells that provide survival signals to PBs and show that this function is slowly acquired in early life, in parallel to a progressive acquisition of APRIL expression. Altogether, this identifies APRIL as a critical signal for PB survival that is poorly expressed in the early-life BM compartment.
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17
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Pihlgren M, Friedli M, Tougne C, Rochat AF, Lambert PH, Siegrist CA. Reduced ability of neonatal and early-life bone marrow stromal cells to support plasmablast survival. THE JOURNAL OF IMMUNOLOGY 2006; 176:165-72. [PMID: 16365407 DOI: 10.4049/jimmunol.176.1.165] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In human infants (<1 year), circulating IgG Abs elicited in response to most T-dependent Ags rapidly decline and return to baseline within a few months after immunization for yet-unknown reasons. In mice immunized between 1 and 4 wk of age, a limited establishment of the bone marrow (BM) pool of long-lived plasma cells is observed. In this study, we show that tetanus toxoid (TT)-specific plasmablasts generated in the spleen are efficiently attracted in vitro and in vivo toward early-life BM stromal cells, which express adult levels of CXCL12. Similarly, adoptively transferred TT plasmablasts efficiently reach the BM compartment of 2-wk-old and adult mice. In contrast, TT plasmablasts fail to persist in the early-life BM compartment, as indicated by the persistence of a significantly lower number of TT plasmablasts in the early-life compartment than in the adult BM compartment 48 h after transfer. This limited persistence is associated with an increased rate of in vivo apoptosis of TT-specific plasmablasts that have reached the early-life BM and with a significantly lower survival rate of TT-specific plasmablasts cocultured on early-life BM stromal cells compared with adult BM stromal cells. Thus, early-life BM stromal cells fail to provide the molecular signals that support plasmablast survival and differentiation into surviving plasma cells.
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Affiliation(s)
- Maria Pihlgren
- World Health Organization Collaborating Center for Vaccinology and Neonatal Immunology, Department of Pathology-Immunology, University of Geneva, Geneva, Switzerland
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18
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Abstract
The key feature of the adaptive immune response is its specificity and the ability to generate and maintain memory. Preexisting antibodies in the circulation and at the mucosa provide the first line of defense against re-infection by extracellular as well as intracellular pathogens. Memory T cells are an important second line of defense against intracellular pathogens, and in particular against microbes that can cause chronic or latent infection. In this article we will review our current understanding of the generation and maintenance of B cell and T cell memory.
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Affiliation(s)
- Tania S Gourley
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University, 1510 Clifton Road, Atlanta, GA 30033, USA.
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19
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Abstract
In vertebrates, serum antibodies are an essential component of innate and adaptive immunity and immunological memory. They also can contribute significantly to immunopathology. Their composition is the result of tightly regulated differentiation of B lymphocytes into antibody-secreting plasma blasts and plasma cells. The survival of antibody-secreting cells determines their contribution to the immune response in which they were generated and to long-lasting immunity, as provided by stable serum antibody levels. Short-lived plasma blasts and/or plasma cells secrete antibodies for a reactive immune response. Short-lived plasma blasts can become long-lived plasma cells, probably by competition with preexisting plasma cells for occupation of a limited number of survival niches in the body, in a process not yet fully understood. Limitation of the number of long-lived plasma cells allows the immune system to maintain a stable humoral immunological memory over long periods, to react to new pathogenic challenges, and to adapt the humoral memory in response to these antigens.
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Affiliation(s)
- Rudolf A Manz
- Deutsches Rheumaforschungszentrum, 10117 Berlin, Germany.
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20
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Ellyard JI, Avery DT, Mackay CR, Tangye SG. Contribution of stromal cells to the migration, function and retention of plasma cells in human spleen: potential roles of CXCL12, IL-6 and CD54. Eur J Immunol 2005; 35:699-708. [PMID: 15714584 DOI: 10.1002/eji.200425442] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Plasma cells (PC) localize to discrete areas of secondary lymphoid tissue and bone marrow (BM). The positioning of PC in different sites is believed to be regulated by chemokines and adhesion molecules expressed by accessory cells in the lymphoid tissue microenvironment. However, the mechanisms responsible for the positioning of PC within the red pulp (RP) of human spleen have not been elucidated. Therefore, we examined the contribution of human splenic stromal cells to the migration and function of human PC. Splenic PC expressed the chemokine receptor CXCR4 and responded to its ligand CXCL12. In contrast, PC lacked CXCR5 and CCR7, and consequently exhibited minimal migration towards CXCL13 and CCL21. Splenic stromal cells proved to be a rich source of CXCL12, and could induce the migration of human B cells. Furthermore, they supported Ig production by splenic PC mainly by secreting IL-6. Lastly, a striking difference between splenic and BM PC was the constitutive expression of CD11a by only splenic PC. Notably, splenic stromal cells expressed high levels of CD54, the counter-structure of CD11a, and splenic PC were positioned adjacent to stromal cells in the RP. Thus, we propose that stromal cells attract PC to the RP and contribute to their retention and function through the combined expression of CXCL12, CD54 and IL-6.
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Affiliation(s)
- Julia I Ellyard
- Centenary Institute of Cancer Medicine and Cell Biology, Sydney, Australia
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21
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Cattoretti G, Angelin-Duclos C, Shaknovich R, Zhou H, Wang D, Alobeid B. PRDM1/Blimp-1 is expressed in human B-lymphocytes committed to the plasma cell lineage. J Pathol 2005; 206:76-86. [PMID: 15772984 DOI: 10.1002/path.1752] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
PRDM1/Blimp-1 (in human and mouse, respectively) has a central role in determining and shaping the secretory arm of mature B-cell differentiation. In this study, a mouse monoclonal antibody that recognizes PRDM1 was used to detail its distribution in normal human lymphoid tissue and in lymphoid neoplasms that correspond to different stages of B-cell differentiation. PRDM1 was expressed in germinal centre blasts that co-express Pax5, CD19, CD20, and CD10, but not BCL6 or MTA-3. Pax5 was downregulated and full plasma cell morphology and phenotype were acquired by PRDM1+, nuclear cREL-, pre-plasma cells upon exit from the germinal centre. Activated extrafollicular B-cells (CD30+, Pax5+) were largely PRDM1-. PRDM1 was also absent in tissue histiocytes and the majority of resting T-cells and S-100+ antigen-presenting cells. PRDM1 and CD138 were expressed simultaneously in human lymphomas with plasma cell differentiation, but not in marginal zone lymphomas or chronic lymphocytic leukaemias. A minority of diffuse large B-cell lymphomas expressed PRDM1 and Hodgkin lymphomas were largely PRDM1-. Infiltrating T-cells in PRDM1- B-cell lymphomas expressed PRDM1. In conclusion, PRDM1 staining is a reliable and informative assay to define plasma cell commitment and differentiation in human normal and neoplastic B-cell lineages.
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Affiliation(s)
- Giorgio Cattoretti
- Institute for Cancer Genetics, Columbia University, New York, NY 10032, USA.
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22
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Ellyard JI, Avery DT, Phan TG, Hare NJ, Hodgkin PD, Tangye SG. Antigen-selected, immunoglobulin-secreting cells persist in human spleen and bone marrow. Blood 2004; 103:3805-12. [PMID: 14701691 DOI: 10.1182/blood-2003-09-3109] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Plasma cells (PCs) represent the final stage of B-cell differentiation and are devoted to the production of immunoglobulin (Ig). Perturbations to their development can result in human disorders characterized by PC expansion and hypergammaglobulinemia. Ig-secreting cells (ISCs) have been identified in secondary lymphoid tissues and bone marrow (BM). Most ISCs in lymphoid tissue are short-lived; in contrast, ISCs that migrate to the BM become long-lived PCs and continue to secrete immunoglobulin for extended periods. However, a small population of long-lived PCs has been identified in rodent spleen, suggesting that PCs may persist in secondary lymphoid tissue and that the spleen, as well as the BM, plays an important role in maintaining long-term humoral immunity. For these reasons, we examined ISCs in human spleen and identified a population that appears analogous to long-lived rodent splenic PCs. Human splenic ISCs shared morphologic, cellular, molecular, and functional characteristics with long-lived PCs in BM, demonstrating their commitment to the PC lineage. Furthermore, the detection of highly mutated immunoglobulin V region genes in splenic ISCs suggested they are likely to be antigen-selected and to secrete high-affinity immunoglobulin. Thus, our results suggest that splenic ISCs have an important role in humoral immunity and may represent the affected cell type in some B-cell dyscrasias.
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Affiliation(s)
- Julia I Ellyard
- Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales, Australia
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23
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Hurt EM, Wiestner A, Rosenwald A, Shaffer AL, Campo E, Grogan T, Bergsagel PL, Kuehl WM, Staudt LM. Overexpression of c-maf is a frequent oncogenic event in multiple myeloma that promotes proliferation and pathological interactions with bone marrow stroma. Cancer Cell 2004; 5:191-9. [PMID: 14998494 DOI: 10.1016/s1535-6108(04)00019-4] [Citation(s) in RCA: 278] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2003] [Revised: 11/14/2003] [Accepted: 12/05/2003] [Indexed: 01/12/2023]
Abstract
The oncogene c-maf is translocated in approximately 5%-10% of multiple myelomas. Unexpectedly, we observed c-maf expression in myeloma cell lines lacking c-maf translocations and in 50% of multiple myeloma bone marrow samples. By gene expression profiling, we identified three c-maf target genes: cyclin D2, integrin beta7, and CCR1. c-maf transactivated the cyclin D2 promoter and enhanced myeloma proliferation, whereas dominant inhibition of c-maf blocked tumor formation in immunodeficient mice. c-maf-driven expression of integrin beta7 enhanced myeloma adhesion to bone marrow stroma and increased production of VEGF. We propose that c-maf transforms plasma cells by stimulating cell cycle progression and by altering bone marrow stromal interactions. The frequent overexpression of c-maf in myeloma makes it an attractive target for therapeutic intervention.
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Affiliation(s)
- Elaine M Hurt
- Metabolism Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Cassese G, Arce S, Hauser AE, Lehnert K, Moewes B, Mostarac M, Muehlinghaus G, Szyska M, Radbruch A, Manz RA. Plasma cell survival is mediated by synergistic effects of cytokines and adhesion-dependent signals. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2003; 171:1684-90. [PMID: 12902466 DOI: 10.4049/jimmunol.171.4.1684] [Citation(s) in RCA: 361] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recent results suggest that plasma cell longevity is not an intrinsic capacity, but depends on yet unknown factors produced in their environment. In this study, we show that the cytokines IL-5, IL-6, TNF-alpha, and stromal cell-derived factor-1alpha as well as signaling via CD44 support the survival of isolated bone marrow plasma cells. The cytokines IL-7 and stem cell factor, crucially important for early B cell development, do not mediate plasma cell survival, indicating that plasma cells and early B cells have different survival requirements. As shown in IL-6-deficient mice, IL-6 is required for a normal induction, but not for the maintenance of plasma cell responses in vivo, indicating that the effects of individual survival factors are redundant. Optimal survival of isolated plasma cells requires stimulation by a combination of factors acting synergistically. These results strongly support the concept that plasma cell survival depends on niches in which a combination of specific signals, including IL-5, IL-6, stromal cell-derived factor-1alpha, TNF-alpha, and ligands for CD44, provides an environment required to mediate plasma cell longevity.
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Affiliation(s)
- Giuliana Cassese
- Department for Humoral Immunology, Deutsches Rheumaforschungszentrum Berlin, Berlin, Germany
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25
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Abstract
We evaluated the role of interleukin-6 (IL-6) in neuronal injury after CNS infection. IL-6-/- and IL-6+/+ mice of resistant major histocompatibility complex (MHC) H-2b haplotype intracerebrally infected with Theiler's virus cleared the infection normally without development of viral persistence, lethal neuronal infection, or late phase demyelination. In contrast, infection of IL-6-/- mice on a susceptible H-2q haplotype resulted in frequent deaths and severe neurologic deficits within 2 weeks of infection as compared with infected IL-6+/+ H-2q littermate controls. Morphologic analysis demonstrated dramatic injury to anterior horn neurons of IL-6-/- H-2q mice at 12 d after infection. Infectious viral titers in the CNS (brain and spinal cord combined) were equivalent between IL-6-/- H-2q and IL-6+/+ H-2q mice. In contrast, more viral RNA was detected in the spinal cord of IL-6-/- mice compared with IL-6+/+ H-2q mice. Virus antigen was localized predominantly to anterior horn cells in infected IL-6-/- H-2q mice. IL-6 deletion did not affect the humoral response directed against virus, nor did it affect the expression of CD4, CD8, MHC class I, or MHC class II in the CNS. Importantly, IL-6 was expressed by astrocytes of infected IL-6+/+ mice but not in astrocytes of IL-6-/- mice or uninfected IL-6+/+ mice. Furthermore, expression of various chemokines was robust at 12 d after infection in both H-2b and H-2q IL-6-/- mice, indicating that intrinsic CNS inflammatory responses did not depend on the presence of IL-6. Finally, in vitro analysis of virus-induced death in neuroblastoma-spinal cord-34 motor neurons and primary anterior horn cell neurons showed that IL-6 exerted a neuroprotective effect. These data support the hypothesis that IL-6 plays a critical role in protecting specific populations of neurons from irreversible injury.
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Minges Wols HA, Underhill GH, Kansas GS, Witte PL. The role of bone marrow-derived stromal cells in the maintenance of plasma cell longevity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2002; 169:4213-21. [PMID: 12370351 DOI: 10.4049/jimmunol.169.8.4213] [Citation(s) in RCA: 219] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Protective circulating Abs originate primarily from long-lived plasma cells in the bone marrow. However, the molecular and cellular basis of plasma cell longevity is unknown. We investigated the capacity of primary bone marrow-derived stromal cells to maintain plasma cell viability in vitro. Plasma cells purified from the bone marrow or lymph nodes died rapidly when plated in media, but a subpopulation of plasma cells survived and secreted high levels of Ab for up to 4 wk when cocultured with stromal cells. Ab secretion was inhibited by the addition of anti-very late Ag-4 to plasma cell/stromal cell cocultures indicating that direct interactions occur and are necessary between stromal cells and plasma cells. The addition of rIL-6 to plasma cells cultured in media alone partially relieved the sharp decline in Ab secretion observed in the absence of stromal cells. Moreover, when stromal cells from IL-6(-/-) mice were used in plasma cell/stromal cell cocultures, Ab levels decreased 80% after 7 days as compared with wild-type stromal cells. Further, IL-6 mRNA message was induced in stromal cells by coculture with plasma cells. These data indicate that bone marrow plasma cells are not intrinsically long-lived, but rather that plasma cells contact and modify bone marrow stromal cells to provide survival factors.
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Affiliation(s)
- Heather A Minges Wols
- Program for Immunology and Aging, Department of Cell Biology, Neurobiology, and Anatomy, Loyola University Medical Center, 2160 South First Avenue, Maywood, IL 60153, USA
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27
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Sánchez-Segura A, Brieva JA, Rodríguez C. Regulation of immunoglobulin secretion by plasma cells infiltrating nasal polyps. Laryngoscope 2000; 110:1183-8. [PMID: 10892693 DOI: 10.1097/00005537-200007000-00022] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE/HYPOTHESIS To learn more about the role of plasma cells infiltrating nasal polyps in the pathogenesis of nasal polyposis, we examined their function by analyzing immunoglobulin (Ig) production and the factors implicated in the secretion. STUDY DESIGN A series of 19 consecutive nasal polyp tissue samples and, as a control, peripheral blood samples from the same patients, were studied by histopathological and immunological examination. METHODS Hematoxylin-eosin and immunohistochemical staining was carried out to identify plasma cells infiltrating nasal polyps. Nasal polyp mononuclear cells (NPMNCs) were purified from nasal polyp tissue samples, and Ig-secreting cells were identified in cytospin preparations stained with fluorescein isothiocyanate-conjugated antibodies against IgA, IgG, IgM, and IgE. Purified NPMNCs were cultured in basal conditions and after the addition of several stimuli. Ig secreted into the culture supernatants was evaluated by an enzyme-linked immunosorbent assay. RESULTS Plasma cells accounted for an important fraction of the inflammatory infiltrate. The main Ig isotype synthesized by these cells was IgA, whereas little IgE was detected. In vitro cultures demonstrated that the plasma cells actively secreted Ig for a short period. When cytokine dependence was analyzed, interleukin-10 (IL-10) and tumor necrosis factor-alpha (TNF-alpha) were shown to be partially responsible for the Ig production. Dependence on CD95-mediated apoptosis was not observed. CONCLUSIONS Nasal polyp-infiltrating plasma cells are mainly IgA-secreting cells, the latter property being related to the mucosal immune system. The IgA production is partly dependent on IL-10 and TNF-alpha. The absence of IgE-secreting cells in most of the samples suggests that a type I hypersensitivity reaction is not essential for the development of nasal polyp.
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Affiliation(s)
- A Sánchez-Segura
- Service of Immunology, Hospital of the University of Puerta del Mar, Cádiz, Spain
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28
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Medina F, Segundo C, Brieva JA. Purification of human tonsil plasma cells: pre-enrichment step by immunomagnetic selection of CD31(+) cells. CYTOMETRY 2000; 39:231-4. [PMID: 10685081 DOI: 10.1002/(sici)1097-0320(20000301)39:3<231::aid-cyto9>3.0.co;2-g] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND The advancement of knowledge about the biology of human normal plasma cells (PC) is hampered by their low frequency and difficult isolation. The aim of this study is to design a way of purifying these cells. METHODS To this end, advantage was taken of the fact that human tonsil PC expressed surface CD31 at higher levels than the rest of tonsil B cells. RESULTS The immunomagnetic selection of CD31(+) cells from tonsil B cells increased by a factor of 12 the proportion of PC, determined as CD38(high) cells. This method recovered half of the initial number of PC, and did not alter the PC functions, because IgG secretion was similar in control B cell cultures as well as in cultures of B cells obtained at successive steps of the selection procedure. In addition, CD38(high) cells pre-enriched by this technique were readily isolated by FACS sorting and clearly identified as PC. CONCLUSIONS Therefore, immunomagnetic pre-enrichment of CD31(+) cells is an efficient method that allows the complete purification of human functional PC.
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Affiliation(s)
- F Medina
- Servicio de Inmunología, Hospital Universitario Puerta del Mar, Cádiz, Spain
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29
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Thomas X, Anglaret B, Magaud JP, Epstein J, Archimbaud E. Interdependence between cytokines and cell adhesion molecules to induce interleukin-6 production by stromal cells in myeloma. Leuk Lymphoma 1998; 32:107-19. [PMID: 10037006 DOI: 10.3109/10428199809059251] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Bone marrow (BM) environment is thought to support the growth of myeloma cells and thus to play an important role in the pathogenesis of multiple myeloma (MM). Because interleukin-6 (IL-6) is an essential growth factor in MM, we have examined the effects of two myeloma cell lines (U266 and ARH-77) on the IL-6 production by BM stromal cells in a co-culture system. These cell lines strongly stimulate the IL-6 production and IL-6 triggering was partially dependent on physical contact between lines and stroma. The percentages of cell adhesion to stromal layers were 39% and 25% respectively for ARH77 and U266 cell lines. Inhibition studies with blocking monoclonal antibodies showed the importance of CD49d/CD106 and CD11a/CD54 interactions in the stimulation of IL-6 production by stromal cells. However, cell-to-cell contact was not an absolute requirement for IL-6 production. Cytokines, of which TNF-alpha and IL-1beta produced by MM or accessory cells, were also able to stimulate IL-6 production by fibroblasts and show additive effects. In adhesion assays, TNF-alpha and IL-1beta were able to increase the adhesion of MM cells to stromal cells. CD54 was upregulated by IL-1beta, TNF-alpha or a contact with MM cells while CD106 expression was not, suggesting only a functional change of this molecule. However, the role of monoclonal antibodies, directed against these factors, confirmed the role of TNF-alpha in the IL-6 production by stromal cells, while any IL-1beta intervention was not shown in our co-culture system. IL-6 favoured and maintained adhesion of MM cells to stromal cells spontaneously since its reintroduction in the favoured co-culture system restored their decreased adhesion observed on a glutaraldehyde fixed stromal layer. Overall our data suggest a functional overlap between cytokines and adhesion molecules for the paracrine IL-6 production.
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Affiliation(s)
- X Thomas
- Service d'Hématologie, Hôpital Edouard Herriot, INSERM unité 453, Centre Léon Bérard, Lyon, France
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30
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Xia B, Guo HJ, Crusius JBA, Deng CS, Meuwissen SGM, Pena AS. In vitro production of TNFα, IL-6 and sIL-2R in Chinese patients with ulcerative colitis. World J Gastroenterol 1998; 4:252-255. [PMID: 11819289 PMCID: PMC4723470 DOI: 10.3748/wjg.v4.i3.252] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine the tumor necrosis factor alpha (TNFα), interleukin 6 (IL-6) and soluble interleukin 2 receptor (sIL-2r) from peripheral blood mononuclear cells (PBMC) in 25 Chinese patients with ulcerative colitis and 20 healthy controls.
METHODS: PBMC were isolated by density gradient centrifugation of heparinized blood and cultures for 24 or 48 h by stimulation with LPS or PHA. TNFα and sIL-2r were measured by ELISA method and IL-6 measured by biossay.
RESULTS: TNFα production stimulated by LPS and sIL-2r production by PHA in ulcerative colitis were significantly lower than in healthy controls (TNFα 509 (46-7244) ng/L vs 1995 (117-18950) ng/L, P < 0.05; sIL-2r 320 U/mL ± 165 U/mL vs 451 U/mL ± 247 U/mL, P < 0.05). Spontaneous TNFα and sIL-2r production were not significantly different between ulcerative colitis and controls (TNFα 304 (46-7044) ng/L vs 215 (46-4009) ng/L, P > 0.05; sIL-2r 264 U/mL ± 115 U/mL vs 236 U/mL ± 139 U/mL, P > 0.05). IL-6 production by spontaneous release from PBMC in ulcerative colitis group was 109 U/mL ± 94 U/mL vs 44 U/mL ± 39 U/mL for those in healthy controls, P < 0.01. IL-6 stimulated by LPS in ulcerative colitis group was (261 U/mL ± 80 U/mL) higher than in healthy controls (102 U/mL ± 54 U/mL, P < 0.01). No correlation of TNFα, IL-6, sIL-2r production was found to disease activity, disease location and medication.
CONCLUSION: Cytokine production from PBMC was also disturbed in Chinese patients with ulcerative colitis.
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31
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Helfrich MH, Livingston E, Franklin IM, Soutar RL. Expression of adhesion molecules in malignant plasma cells in multiple myeloma: comparison with normal plasma cells and functional significance. Blood Rev 1997; 11:28-38. [PMID: 9218104 DOI: 10.1016/s0268-960x(97)90004-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Malignant plasma cells in multiple myeloma are predominantly confined to the bone marrow, where they stimulate cytokine production by stromal cells and bone cells leading to osteoclast activation and formation of the characteristic lytic lesions in the skeleton. Adhesion molecules are critically involved in the cellular interactions between myeloma cells and stromal elements and may represent novel therapeutic targets to reduce osteolytic bone disease in multiple myeloma. Here, we review the literature on the adhesion molecule repertoire expressed by malignant plasma cells and discuss the evidence that adhesive interactions between myeloma cells and stromal cells stimulate production of bone-resorbing cytokines.
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Affiliation(s)
- M H Helfrich
- Department of Medicine and Therapeutics, University of Aberdeen, Foresterhill, UK
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32
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Medina F, Segundo C, Rodríguez C, Brieva JA. Regulatory role of CD95 ligation on human B cells induced in vivo capable of spontaneous and high-rate Ig secretion. Eur J Immunol 1997; 27:700-6. [PMID: 9079812 DOI: 10.1002/eji.1830270319] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
CD95 ligation elicits apoptotic signals in many cell systems. This study analyzes the effect of anti-CD95 mAb on human cells capable of spontaneous and high-rate Ig secretion. Such cells have been induced in vivo and represent a highly mature B cell stage. Addition of the anti-CD95 monoclonal antibody (mAb) CH11 to tonsil B cells inhibited 50-60% of their spontaneous Ig secretion. The effect was exerted early in the culture and could be reversed by a pre-treatment with a neutralizing mAb. N-acetyl-D-sphingosine (C2-ceramide), although not a close analog, also reduced Ig secretion to a similar extent. The inclusion of a tetrapeptide inhibitor for certain interleukin-1beta-converting enzyme proteases prevented the inhibitory effect of CH11 mAb on tonsil B cells. B cells capable of spontaneous Ab secretion obtained from blood of recently-immunized volunteers were also inhibited by CH11 mAb and C2-ceramide. In contrast, bone marrow (BM) B cells capable of spontaneous Ig secretion were unaffected by these agents. This CD95 ligation-mediated inhibition of tonsil and blood Ig-secreting B cells could not be reversed by cytokines with demonstrated activity on these B cells. Human mature B cells induced in vivo are identifiable as CD38hi cells. Flow cytometric analysis revealed that a fraction of tonsil CD38hi cells expressed low levels of CD95. Moreover, about 20% of these cells exhibited basal apoptosis, as defined by annexin V binding. This phenomenon was markedly increased by CD95 ligation. On the other hand, BM CD38hi cells showed neither CD95 expression nor CD95-induced annexin V binding. These data suggest that CD95 ligation might play a role in the control of human humoral responses by inducing apoptosis in susceptible mature B cells.
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Affiliation(s)
- F Medina
- Servicio de Immunología, Hospital Universitario Puerta del Mar, Cádiz, Spain
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33
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Patrick CW, Smith TW, McIntire LV, Juneja HS. Cellular interactions among marrow stromal and normal/neoplastic pre-B- and B-lymphoblastic cells. Leuk Lymphoma 1996; 22:205-19. [PMID: 8819069 DOI: 10.3109/10428199609051751] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The direct interaction between B-cells, both normal and neoplastic, and marrow stromal cells (MSC) or MSC-secreted extracellular matrix proteins is believed to play a decisive role in lymphopoiesis as well as in the sustained proliferation and homing of lymphoid malignancies. Although information has been accruing on possible obligatory cell-cell and cell-extracellular matrix adhesion molecules, our current state of knowledge regarding B-cell interaction with the marrow microenvironment is rather limited. We discuss in this review what is currently known regarding adhesion molecules involved in the apposition between B-cells and MSC. In addition, we describe how the cellular interactions are modulated by cytokines present in the marrow microenvironment. Further, we present possible signal transduction pathways activated by B-cell/MSC apposition and attempt to integrate in vitro data with in vivo observations. We close this review by providing implications for novel clinical and therapeutic applications based on the current knowledge of B-cell/MSC adhesion mechanisms and signaling pathways.
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Affiliation(s)
- C W Patrick
- Department of Internal Medicine, University of Texas Health Science Center at Houston 77030, USA
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34
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Affiliation(s)
- C Van Kooten
- Laboratory for Immunological Research, Schering-Plough, Dardilly, France
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35
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Quiding-Järbrink M, Lakew M, Nordström I, Banchereau J, Butcher E, Holmgren J, Czerkinsky C. Human circulating specific antibody-forming cells after systemic and mucosal immunizations: differential homing commitments and cell surface differentiation markers. Eur J Immunol 1995; 25:322-7. [PMID: 7533081 DOI: 10.1002/eji.1830250203] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Circulating spontaneous antibody-secreting cells (ASC) induced by mucosal and systemic immunizations in human volunteers have been characterized with respect to differentiation stage and homing commitments. Irrespective of the immunization route, the large majority of ASC co-expressed CD19 and HLA-DR, which are normally lost during the transition of plasmablasts to plasmocytes, as well as CD38, a marker of activated B cell blasts, expressed also by plasmocytes. However, these cells expressed neither CD28, a molecule acquired by plasmocytes, nor CD22 and CD37, which are lost during the transition of plasmablasts to plasmocytes. Therefore, the large majority of ASC found in peripheral blood after oral and parenteral immunizations are terminally differentiated B cells, but not fully differentiated plasmocytes. As a whole, the mucosally derived ASC population seemed to be more homogenously differentiated. CD25 was detected on few ASC, whereas ASC expressing CD71 were more numerous, especially among systemically derived ASC. Almost all ASC expressed the adhesion molecules CD44 and alpha 4-integrins, irrespective of immunization route. However, virtually all systemically derived ASC expressed L-selectin, recognizing the peripheral lymph node addressin, whereas only a minority of mucosally induced blood ASC expressed L-selectin. These studies are the first to demonstrate in humans that circulating precursors of mucosal B cell immunoblasts utilize organ-specific recognition mechanisms distinct from those of corresponding systemic B cells and appear to be more advanced in the B lineage maturation pathway. Specialization of receptor expression could explain both the unification of immune responses in diverse mucosal sites and the physiologic segregation of mucosal from non-mucosal immune mechanisms in humans.
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Affiliation(s)
- M Quiding-Järbrink
- Department of Medical, Microbiology and Immunology, University of Göteborg, Sweden
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36
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Jones NA, Rowlands DC, Johnson WE, MacLennan IC, Brown G. Persistent growth of BALB/C mouse plasmacytoma and human myeloma cell lines in the presence of phorbol myristate acetate is associated with continued expression of Lap18 (stathmin). Hematol Oncol 1995; 13:29-43. [PMID: 7750926 DOI: 10.1002/hon.2900130105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Lap18 is a highly conserved cytosolic protein that is expressed in dividing cells. Data from a number of studies show that a range of cell lines and mitogen-stimulated normal cells cultured in PMA phosphorylate and subsequently down-regulate Lap18. This has been found to be associated with growth arrest, although it is not clear that these events are causally related. In the present study we confirm that the HL60 promyelocytic leukemia and K562 erythroleukemia cell lines, when cultured with PMA, behave in this manner. This was not the case for any of five mouse plasmacytoma cell lines and six lines derived from patients with multiple myeloma or plasma cell leukemia. All of these lines contain Lap18, although the level of this protein in the mouse but not the human plasmacytoma cell-line cells is relatively low. All the neoplastic plasma cell-line cells phosphorylate Lap18 on culture with PMA, but this does not induce growth arrest nor result in down-regulation of Lap18 expression. Further experiments are required to test whether there is a mechanistic relationship between the continued growth of plasmacytoma cell lines and their failure to down-regulate Lap18 on culture in PMA.
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Affiliation(s)
- N A Jones
- Department of Immunology, University of Birmingham Medical School, Edgbaston, U.K
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37
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Westendorf JJ, Ahmann GJ, Lust JA, Tschumper RC, Greipp PR, Katzmann JA, Jelinek DF. Molecular and biological role of CD40 in multiple myeloma. Curr Top Microbiol Immunol 1995; 194:63-72. [PMID: 7534674 DOI: 10.1007/978-3-642-79275-5_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- J J Westendorf
- Department of Immunology, Mayo Clinic and Foundation, Rochester, Minnesota 55905
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38
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Urashima M, Hasegawa N, Kamijo M, Shishikura A, Kato Y, Hoshi Y, Akatsuka J, Maekawa K. Establishment of a human pro-B cell line (JKB-1) and its differentiation of preestablished bone marrow stromal cell layer. Am J Hematol 1994; 46:112-9. [PMID: 8172177 DOI: 10.1002/ajh.2830460211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A human pro-B cell line, named JKB-1, was established from the bone marrow of a 16-year-old girl with acute lymphoblastic leukemia (ALL) in relapse. The origin of the JKB-1 cell line was indicated by its chromosomal and immunologic similarity to the patient's fresh leukemic cells. This cell line has been growing for more than 14 months in suspension culture medium and had a doubling time of about 24 hours. JKB-1 expressed terminal deoxynucleotide transferase (TdT) and early antigens (HLA-DR, CD19, CD24) of B cells, with heavy chain gene rearrangement. However, it did not express late antigens (CD10, CD20, CD21, CD22, CD23) of B cells, light chain gene rearrangement, and cytoplasmic mu-chain. These results suggested that JKB-1 is at the stage of "pro-B" cell or early B-cell precursors. This cell line was induced to differentiate after 7 days of co-incubation with irradiated bone marrow stromal cells because of the expression of pre-B cell antigens (CD10, CD20), cytoplasmic mu-chain, light chain gene rearrangement, and disappearance of TdT, JKB-1 cells adhered to a preestablished bone marrow stromal cell layer with string-like processes under scanning electron microscope. When JKB-1 cells were separated from the stromal layer by a cyclopore membrane with 0.45 micron pore size, they did not differentiate. Bone marrow stromal cell conditioned medium could not induce differentiation either. Thus it was suspected that direct contact between JKB-1 cells and stromal cells was required for differentiation. In methylcellulose semisolid medium, the colony size and number of JKB-1 cells were increased by stem cell factor (SCF), or interleukin (IL)-3, or IL-7, but they were decreased by IL-6. Moreover, SCF synergized with IL-3 or IL-7 to stimulate the proliferation of JKB-1 cells. Because there are very few reproducible models for examining early stages of human B-cell differentiation, the JKB-1 cell line would be useful for studying the relationship between human B-cell differentiation and bone marrow microenvironment, as well as leukemogenesis.
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Affiliation(s)
- M Urashima
- Department of Pediatrics, Jikei University School of Medicine, Tokyo, Japan
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39
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Brieva JA, Roldán E, Rodríguez C, Navas G. Human tonsil, blood and bone marrow in vivo-induced B cells capable of spontaneous and high-rate immunoglobulin secretion in vitro: differences in the requirements for factors and for adherent and bone marrow stromal cells, as well as distinctive adhesion molecule expression. Eur J Immunol 1994; 24:362-6. [PMID: 8299684 DOI: 10.1002/eji.1830240214] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Human B cells capable of spontaneous IgG secretion are commonly found in circulation and in lymphoid tissues such as tonsil and bone marrow (BM). The present study compares the mechanisms that regulate tonsil, blood and BM B cells capable of spontaneous IgG secretion. The BM cell subset produced IgG during a markedly longer period of time (14 days) than did tonsil and blood cell subsets (2-3 days). Blood and BM, but not tonsil, B cell IgG secretion depended on the presence of adherent cells, as demonstrated by adherent cell depletion and re-addition experiments. Stromal BM cells supported linear IgG secretion by non-adherent BM cells for 2 weeks, but were unable to prolong the short-term IgG secretion by tonsil and blood cells. Different factors induced IgG secretion in each of the three B cell populations as optimal IgG secretion by tonsil, blood or BM cell subsets required either tumor necrosis factor-alpha, interleukin-6 or fibronectin + interleukin-6, respectively. Finally, these populations also showed differences in the expression of adhesion molecules; the tonsilar cell subset was PNA+/- CD44+ CD49d+ CD49e- Leu-8+/-, the blood cell subset was PNA- CD44+/- CD49d+ CD49e- Leu-8+ and the BM cell subset was PNA- CD44+/- CD49d+ CD49e- Leu-8-. These results suggest that the mechanisms controlling the final differentiation and the expression of adhesion molecules in these B lymphocytes exhibit territorial specificity.
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Affiliation(s)
- J A Brieva
- Servicio de Inmunología, Hospital Ramón y Cajal, Madrid, Spain
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40
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Reinecker HC, Steffen M, Witthoeft T, Pflueger I, Schreiber S, MacDermott RP, Raedler A. Enhanced secretion of tumour necrosis factor-alpha, IL-6, and IL-1 beta by isolated lamina propria mononuclear cells from patients with ulcerative colitis and Crohn's disease. Clin Exp Immunol 1993; 94:174-81. [PMID: 8403503 PMCID: PMC1534387 DOI: 10.1111/j.1365-2249.1993.tb05997.x] [Citation(s) in RCA: 632] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The perpetuation of inflammation in ulcerative colitis and Crohn's disease may be regulated in part by an increased secretion of proinflammatory cytokines due to either an appropriate response to initial stimulating agents, and/or due to an impaired down-regulation of cytokine secretion. The aim of this study was to determine the secretion patterns of the proinflammatory cytokines tumour necrosis factor-alpha (TNF-alpha), IL-6 and IL-1 beta, from isolated lamina propria mononuclear cells (LPMNC) isolated from colonic biopsies from patients with untreated ulcerative colitis or Crohn's disease. LPMNC isolated from involved inflammatory bowel disease (IBD) mucosa spontaneously produced increased amounts of TNF-alpha, and IL-6, and IL-1 beta. The TNF-alpha secretion from IBD LPMNC could be further enhanced by pokeweed mitogen stimulation. The secretion patterns of TNF-alpha and IL-1 beta by LPMNC from patients with either ulcerative colitis or Crohn's disease demonstrated a close correlation with the degree of tissue involvement and mucosal inflammation. LPMNC from non-involved ulcerative colitis mucosa secreted markedly increased levels of IL-6 compared with non-involved Crohn's disease mucosa or control mucosa. The heightened IL-6 secretion from LPMNC from non-involved ulcerative colitis mucosa without visible or microscopic signs of inflammation indicates that the pathophysiologic mechanisms involved in the initiation of inflammation may differ between ulcerative colitis and Crohn's disease. The determination of proinflammatory cytokine secretion by isolated LPMNC from colonoscopic biopsies may be a sensitive method for monitoring the severity of mucosal inflammation in IBD patients.
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Affiliation(s)
- H C Reinecker
- Department of Medicine, University of Pennsylvania Medical Centre, Philadelphia
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41
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Ahsmann EJ, Benschop RJ, de Gruyl TD, Faber JA, Lokhorst HM, Bloem AC. A novel flow cytometric assay for the quantification of adhesion of subsets within a heterogeneous cell population; analysis of lymphocyte function-associated antigen-1 (LFA-1)-mediated binding of bone marrow-derived primary tumour cells of patients with multiple myeloma. Clin Exp Immunol 1993; 93:456-63. [PMID: 8103718 PMCID: PMC1554908 DOI: 10.1111/j.1365-2249.1993.tb08201.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
In a previous study the expression of the adhesion molecule LFA-1 on tumour cells in patients suffering from multiple myeloma (MM) was correlated with growth of the malignant plasma cells in vivo. Here we describe a novel in vitro flow cytometric adhesion assay (FCAA) which, based on scatter and fluorescence properties, was used to analyse the contribution of the LFA-1/intercellular adhesion molecule-1 (ICAM-1) adhesion pathway in the binding of bone marrow (BM)-derived LFA-1-positive primary tumour cells of patients with MM to interferon-gamma (IFN-gamma)-activated, ICAM-1-positive, human venous umbilical endothelial cells (huVEC) in vitro. To validate the FCAA, cells from different myeloma cell lines were labelled with the fluorescent dye CFDA or stained for CD38 expression, and LFA-1-mediated adhesion to IFN-gamma-activated endothelial cells was quantified. Results obtained with the FCAA were compared with a conventional adhesion assay employing 51Cr-labelled cells. Statistical analysis revealed that both assays gave similar results. This allowed analysis of the contribution of LFA-1 to the adhesive potential of malignant plasma cells in bone marrow mononuclear cells (BMMC) from MM patients to IFN-gamma-activated endothelial cells. The results prove that LFA-1 expressed on bone marrow-derived plasma cells from MM patients can be used for cellular adhesion to ICAM-1 expressed on adherent growing cells, and are suggestive for a role of the LFA-1/ICAM-1 adhesion pathway in the pathophysiology of MM. The FCAA described in this study is a generally applicable assay, allowing analysis of the interaction of distinct subpopulations with in vitro grown adherent cells of different origin.
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Affiliation(s)
- E J Ahsmann
- Department of Immunology, University Hospital, Utrecht, The Netherlands
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42
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Matthes T, Werner-Favre C, Tang H, Zhang X, Kindler V, Zubler RH. Cytokine mRNA expression during an in vitro response of human B lymphocytes: kinetics of B cell tumor necrosis factor alpha, interleukin (IL)6, IL-10, and transforming growth factor beta 1 mRNAs. J Exp Med 1993; 178:521-8. [PMID: 8101860 PMCID: PMC2191113 DOI: 10.1084/jem.178.2.521] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Expression of mRNA for eight cytokines was analyzed in an in vitro response-proliferation and Ig-secretion--of normal human B lymphocytes. This was made possible by the use of murine thymoma cells as helper cells in conjunction with human T cell supernatant, and the design of human DNA sequence-specific primers for RT-polymerase chain reaction. mRNAs for interleukin (IL)2 and IL-4, but also for IL-1 alpha and IL-1 beta remained undetectable during the whole culture period in highly purified B cells prepared by a three-step purification protocol. However, tumor necrosis factor alpha and IL-6 mRNAs peaked during days 1-3 after culture start and became undetectable after 5-6 d, shortly before bulk B cell proliferation started to decline. In contrast, transforming growth factor beta 1 mRNA, after a progressive increase during the first few days, and IL-10 mRNA, after a peak on days 1-3, remained detectable in immunoglobulin (Ig)-secreting cultures throughout the observation period of 22 d. Clonal analysis on 8-d cultures that had been seeded with single B cells by autocloning with the cell sorter, revealed that 85% of 77 B cell clones studied, expressed TGF-beta 1 mRNA, and only 19% IL-10 mRNA. These findings show a differentiation stage-related cytokine program during a B cell response, whereby (a) B cells can become activated without IL-1 alpha or IL-1 beta expression; (b) mRNA for positive (IL-10) and negative (TGF-beta 1) autoregulatory factors coexists in cell populations during the later phase of the response, although not necessarily in all B cell clones; and (c) normal Ig-secreting cells cease IL-6 expression in contrast to their malignant counterparts, myeloma cells.
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Affiliation(s)
- T Matthes
- Department of Medicine, Geneva University Hospital, Switzerland
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43
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Rodríguez C, Roldán E, Navas G, Brieva JA. Essential role of tumor necrosis factor-alpha in the differentiation of human tonsil in vivo induced B cells capable of spontaneous and high-rate immunoglobulin secretion. Eur J Immunol 1993; 23:1160-4. [PMID: 8477810 DOI: 10.1002/eji.1830230527] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Human tonsils contain B cells capable of spontaneous and high-rate immunoglobulin (Ig) secretion in vitro. These cells are in vivo induced mature B cells, and, as such, they provide and adequate model for studying tonsil B cell differentiation. The present report analyzes the effect of a variety of factors on purified tonsil B cells capable of spontaneous IgG secretion in fetal calf serum (FCS)-containing and serum-free supplemented cultures. Tumor necrosis factor-(TNF) alpha was found to be important for these B cells to reach the high-rate IgG-secreting stage, as is indicated by the following findings: (a) none of the factors used modified tonsil B cell IgG secretion in FCS-containing cultures; (b) TNF-alpha (5-20 ng/ml), but not other cytokines or factors including interleukin (IL)-6, was capable of restoring missing IgG production in serum-free supplemented cultures of tonsil B cells; and (c) IgG secretion in FCS-containing cultures was inhibited by the addition of blocking anti-TNF-alpha antibodies, but not anti-IL-6 antibodies, and this inhibition could be specifically reversed by exogenous TNF-alpha. TNF-alpha was actively produced by tonsil B cells (range 120-750 pg/ml) in the presence, but not in the absence, of FCS. The TNF-alpha inductive effect occurred during the first 12 h of culture and did not require DNA synthesis. These results indicate that the early and endogenous generation of TNF-alpha seems to be essential for tonsil in vivo induced B cells to differentiate into the high-rate Ig-secreting stage.
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Affiliation(s)
- C Rodríguez
- Servicio de Inmunologia, Hospital Ramón y Cajal, Madrid, Spain
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44
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Roldán E, García-Pardo A, Brieva JA. VLA-4-fibronectin interaction is required for the terminal differentiation of human bone marrow cells capable of spontaneous and high rate immunoglobulin secretion. J Exp Med 1992; 175:1739-47. [PMID: 1588291 PMCID: PMC2119256 DOI: 10.1084/jem.175.6.1739] [Citation(s) in RCA: 98] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Human bone marrow (BM) is a relevant site for immunoglobulin (Ig) generation in vivo. The occurrence of BM cells capable of spontaneous and high rate Ig secretion for 14 d in vitro has been described previously. Accordingly, these cells provide a suitable model for studying terminal B cell maturation within the BM. We have reported recently that these BM cells are not totally differentiated when isolated from the body, as they require inductive signals from adherent stromal BM cells to complete their maturation. Interleukin (IL)-6 produced by these adherent BM cells was identified as one such signal. The present work shows that IL-6 was necessary, but not sufficient, for the induction of BM Ig-secreting cells, since the cytokine was unable to restore missing IgG in nonadherent BM cell cultures. Supernatants (SN) obtained from cultures of stromal adherent BM cells, either freshly isolated or derived from long-term BM culture (LTBMC), restored Ig secretion by nonadherent BM cells, suggesting that additional soluble factors from BM stromal cells were required. Fibronectin (FN) was identified as that factor, as can be deduced from the following findings: (a) stromal, but not nonadherent, BM cells constitutively produced FN; (b) anti-FN antibodies markedly reduced the IgG secretion in cultures of BM mononuclear cells (BMMC), and blocked the inductive effect of stromal cell SN on nonadherent BM cells, and such a blockade could be reversed by exogenous FN; and (c) finally, although neither IL-6 nor FN alone exerted any effect, the combination of both factors induced optimal Ig secretion by nonadherent BM cells. Furthermore, VLA-4 molecules seemed to be the FN receptor that was active in this culture system, as indicated by: (a) BM Ig-secreting cells exhibited the phenotype VLA-4+ VLA-5-; (b) mAbs directed to VLA-4 (anti-CD29 and anti-CD49d), but not those directed to other adhesion molecules, inhibited Ig secretion by BMMC cultures, and this effect was reversed by FN; (c) the inductive role of the entire FN molecule could be replaced by a fragment containing the CS-1 region, but not by a fragment containing the RGDS sequence; and (d) only mAbs anti-CD49d capable of blocking VLA-4-FN interaction inhibited induction by either the FN or the CS-1-containing fragment of FN.(ABSTRACT TRUNCATED AT 400 WORDS)
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Affiliation(s)
- E Roldán
- Servicio de Inmunología Hospital Ramón y Cajal, Madrid, Spain
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Affiliation(s)
- J Banchereau
- Laboratory for Immunological Research, Schering-Plough, Dardilly, France
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