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Debes GF, McGettigan SE. Skin-Associated B Cells in Health and Inflammation. THE JOURNAL OF IMMUNOLOGY 2020; 202:1659-1666. [PMID: 30833422 DOI: 10.4049/jimmunol.1801211] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 10/29/2018] [Indexed: 12/13/2022]
Abstract
Traditionally, the skin was believed to be devoid of B cells, and studies of the skin immune system have largely focused on other types of leukocytes. Exciting recent data show that B cells localize to the healthy skin of humans and other mammalian species with likely homeostatic functions in host defense, regulation of microbial communities, and wound healing. Distinct skin-associated B cell subsets drive or suppress cutaneous inflammatory responses with important clinical implications. Localized functions of skin-associated B cell subsets during inflammation comprise Ab production, interactions with skin T cells, tertiary lymphoid tissue formation, and production of proinflammatory cytokines but also include immunosuppression by providing IL-10. In this review, we delve into the intriguing new roles of skin-associated B cells in homeostasis and inflammation.
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Affiliation(s)
- Gudrun F Debes
- Department of Microbiology and Immunology, Sidney Kimmel Medical College, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107
| | - Shannon E McGettigan
- Department of Microbiology and Immunology, Sidney Kimmel Medical College, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107
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102
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de Ruiter K, Jochems SP, Tahapary DL, Stam KA, König M, van Unen V, Laban S, Höllt T, Mbow M, Lelieveldt BPF, Koning F, Sartono E, Smit JWA, Supali T, Yazdanbakhsh M. Helminth infections drive heterogeneity in human type 2 and regulatory cells. Sci Transl Med 2020; 12:12/524/eaaw3703. [DOI: 10.1126/scitranslmed.aaw3703] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 08/06/2019] [Accepted: 12/03/2019] [Indexed: 01/03/2023]
Abstract
Helminth infections induce strong type 2 and regulatory responses, but the degree of heterogeneity of such cells is not well characterized. Using mass cytometry, we profiled these cells in Europeans and Indonesians not exposed to helminths and in Indonesians residing in rural areas infected with soil-transmitted helminths. To assign immune alteration to helminth infection, the profiling was performed before and 1 year after deworming. Very distinct signatures were found in Europeans and Indonesians, showing expanded frequencies of T helper 2 cells, particularly CD161+ cells and ILC2s in helminth-infected Indonesians, which was confirmed functionally through analysis of cytokine-producing cells. Besides ILC2s and CD4+ T cells, CD8+ T cells and γδ T cells in Indonesians produced type 2 cytokines. Regulatory T cells were also expanded in Indonesians, but only those expressing CTLA-4, and some coexpressed CD38, HLA-DR, ICOS, or CD161. CD11c+ B cells were found to be the main IL-10 producers among B cells in Indonesians, a subset that was almost absent in Europeans. A number of the distinct immune profiles were driven by helminths as the profiles reverted after clearance of helminth infections. Moreover, Indonesians with no helminth infections residing in an urban area showed immune profiles that resembled Europeans rather than rural Indonesians, which excludes a major role for ethnicity. Detailed insight into the human type 2 and regulatory networks could provide opportunities to target these cells for more precise interventions.
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Affiliation(s)
- Karin de Ruiter
- Department of Parasitology, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Simon P. Jochems
- Department of Parasitology, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Dicky L. Tahapary
- Department of Parasitology, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
- Department of Internal Medicine, Division of Endocrinology, Dr. Cipto Mangunkusumo National General Hospital, Faculty of Medicine Universitas Indonesia, 10430 Jakarta, Indonesia
- Metabolic, Cardiovascular and Aging Cluster, The Indonesian Medical Education and Research Institute, Universitas Indonesia, 10430 Jakarta, Indonesia
| | - Koen A. Stam
- Department of Parasitology, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Marion König
- Department of Parasitology, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Vincent van Unen
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Sandra Laban
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Thomas Höllt
- Computer Graphics and Visualization Group, Delft University of Technology, 2628 XE Delft, Netherlands
- Computational Biology Center, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Moustapha Mbow
- Department of Immunology, Cheikh Anta Diop University of Dakar (UCAD), 5005 Dakar, Senegal
| | - Boudewijn P. F. Lelieveldt
- Department of LKEB Radiology, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
- Department of Pattern Recognition and Bioinformatics Group, Delft University of Technology, 2628 XE Delft, Netherlands
| | - Frits Koning
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Erliyani Sartono
- Department of Parasitology, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Johannes W. A. Smit
- Department of Internal Medicine, Radboud University Medical Centre, 6525 GA Nijmegen, Netherlands
- Department of Internal Medicine, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
| | - Taniawati Supali
- Department of Parasitology, Faculty of Medicine Universitas Indonesia, 10430 Jakarta, Indonesia
| | - Maria Yazdanbakhsh
- Department of Parasitology, Leiden University Medical Center, 2333 ZA Leiden, Netherlands
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103
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Salminen A. Activation of immunosuppressive network in the aging process. Ageing Res Rev 2020; 57:100998. [PMID: 31838128 DOI: 10.1016/j.arr.2019.100998] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/29/2019] [Accepted: 12/09/2019] [Indexed: 12/19/2022]
Abstract
Chronic low-grade inflammation has a key role in the aging process, a state called inflammaging. It is known that the chronic inflammatory condition generates counteracting immunosuppressive state in many diseases. Inflammaging is also associated with an immune deficiency; generally termed as immunosenescence, although it is not known whether it represents the senescence of immune cells or the active remodeling of immune system. Evidence has accumulated since the 1970's indicating that immunosenescence might be caused by an increased activity of immunosuppressive cells rather than cellular senescence. Immune cells display remarkable plasticity; many of these cells can express both proinflammatory and immunosuppressive phenotypes in a context-dependent manner. The immunosuppressive network involves the regulatory subtypes of T (Treg) and B (Breg) cells as well as regulatory phenotypes of macrophages (Mreg), dendritic (DCreg), natural killer (NKreg), and type II natural killer T (NKT) cells. The immunosuppressive network also includes monocytic (M-MDSC) and polymorphonuclear (PMN-MDSC) myeloid-derived suppressor cells which are immature myeloid cells induced by inflammatory mediators. This co-operative network is stimulated in chronic inflammatory conditions preventing excessive inflammatory responses but at the same time they exert harmful effects on the immune system and tissue homeostasis. Recent studies have revealed that the aging process is associated with the activation of immunosuppressive network, especially the functions of MDSCs, Tregs, and Mregs are increased. I will briefly review the properties of the regulatory phenotypes of immune cells and examine in detail the evidences for an activation of immunosuppressive network with aging.
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104
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Single Cell Mass Cytometry Revealed the Immunomodulatory Effect of Cisplatin Via Downregulation of Splenic CD44+, IL-17A+ MDSCs and Promotion of Circulating IFN-γ+ Myeloid Cells in the 4T1 Metastatic Breast Cancer Model. Int J Mol Sci 2019; 21:ijms21010170. [PMID: 31881770 PMCID: PMC6982301 DOI: 10.3390/ijms21010170] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 12/20/2019] [Accepted: 12/24/2019] [Indexed: 12/17/2022] Open
Abstract
The treatment of metastatic breast cancer remained a challenge despite the recent breakthrough in the immunotherapy regimens. Here, we addressed the multidimensional immunophenotyping of 4T1 metastatic breast cancer by the state-of-the-art single cell mass cytometry (CyTOF). We determined the dose and time dependent cytotoxicity of cisplatin on 4T1 cells by the xCelligence real-time electronic sensing assay. Cisplatin treatment reduced tumor growth, number of lung metastasis, and the splenomegaly of 4T1 tumor bearing mice. We showed that cisplatin inhibited the tumor stroma formation, the polarization of carcinoma-associated fibroblasts by the diminished proteolytic activity of fibroblast activating protein. The CyTOF analysis revealed the emergence of CD11b+/Gr-1+/CD44+ or CD11b+/Gr-1+/IL-17A+ myeloid-derived suppressor cells (MDSCs) and the absence of B220+ or CD62L+ B-cells, the CD62L+/CD4+ and CD62L+/CD8+ T-cells in the spleen of advanced cancer. We could show the immunomodulatory effect of cisplatin via the suppression of splenic MDSCs and via the promotion of peripheral IFN-γ+ myeloid cells. Our data could support the use of low dose chemotherapy with cisplatin as an immunomodulatory agent for metastatic triple negative breast cancer.
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105
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Slawek A, Lorek D, Kedzierska AE, Chelmonska-Soyta A. Regulatory B cells with IL-35 and IL-10 expression in a normal and abortion-prone murine pregnancy model. Am J Reprod Immunol 2019; 83:e13217. [PMID: 31821644 DOI: 10.1111/aji.13217] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 11/18/2019] [Accepted: 12/05/2019] [Indexed: 01/01/2023] Open
Abstract
PROBLEM Interleukin 35 is a relatively newly discovered cytokine that is produced by regulatory B cells (Bregs) and contributes to their suppressive function, which may contribute to fetal tolerance development and pregnancy maintenance. Therefore, the aim of this study was to determine the frequency of Bregs and expression of IL-35 and IL-10 in these cells in a normal and abortion-prone murine pregnancy model. METHODS OF STUDY The frequency of Bregs and expression level of IL-35 and IL-10 in these cells were measured in peripheral blood, uterine draining lymph nodes, uterus, and decidua using flow cytometry. The analysis was performed on days 3 and 14 of pregnancy in normal mice (CBA/JxBALB/c) and abortion-prone (CBA/JxDBA/2J) murine pregnancy model. RESULTS A decreased percentage of Breg cells expressing IL-35 on day 3 of pregnancy in the uterine draining lymph nodes and in peripheral blood in mice from the abortion group compared with the normal pregnancy group was observed. A similar decrease was also observed in the Breg cells population producing IL-10 in peripheral blood. In the uterus (3 dpc) and decidua (14 dpc), a lower percentage of CD19+ IL-35+ was also noted in the abortion-prone model. CONCLUSION We indicated that the early stages of abortion-prone pregnancy (3 dpc) in mice were characterized by diminished frequency of B cells producing IL-35 at both local and peripheral levels. These results and the observed lower level of IL-35 in women suffering from recurrent spontaneous abortion suggest that IL-35 may be involved in the maintenance of pregnancy.
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Affiliation(s)
- Anna Slawek
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Daria Lorek
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Anna Ewa Kedzierska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland.,Łukasiewicz Research Network - PORT Polish Center for Technology Development, Wroclaw, Poland
| | - Anna Chelmonska-Soyta
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland.,Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
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106
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Wu H, Su Z, Barnie PA. The role of B regulatory (B10) cells in inflammatory disorders and their potential as therapeutic targets. Int Immunopharmacol 2019; 78:106111. [PMID: 31881524 DOI: 10.1016/j.intimp.2019.106111] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/08/2019] [Accepted: 12/02/2019] [Indexed: 02/06/2023]
Abstract
Over the past decade, studies have identified subset of B cells, which play suppressive functions in additions to the conventional functions of B cells: antigen processing and presentation, activation of T cells and antibody productions. Because of their regulatory function, they were named as B regulatory cells (Bregs). Bregs restrict the severity of autoimmune disorders in animal disease models such as experimental autoimmune myocarditis (EAM), experimental autoimmune encephalitis (EAE), and collagen-induced arthritis (CIA) but can contribute to the development of infection and cancer. In humans, the roles of B regulatory cells in autoimmune diseases have not been clearly established because of the inconsistent findings from many researchers. This is believed to arise from the speculated fact that Bregs lack specific marker, which can be used to identify and characterize them in human diseases. The CD19+CD24hiCD38hiCD1dhiB cells have been associated with the regulatory function. Available evidences highlight the relevance of increasing IL-10-producing B cells in autoimmune diseases and the possibility of serving as new therapeutic targets in inflammatory disorders. This review empanels the functions of Bregs in autoimmune diseases in both human and animal models, and further evaluates the possibility of Bregs as therapeutic targets in inflammatory disorders. Consequently, this might help identify possible research gaps, which need to be clarified as researchers speculate the possibility of targeting some subsets of Bregs in the treatment of inflammatory disorders.
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Affiliation(s)
- Hongxia Wu
- Department of Laboratory, People's Hospital of Jiangyin, Jiangsu 214400, China
| | - Zhaoliang Su
- International Genome Center, Jiangsu University, Zhenjiang 212013, China
| | - Prince Amoah Barnie
- International Genome Center, Jiangsu University, Zhenjiang 212013, China; Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Ghana.
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107
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Umakoshi K, Choudhury ME, Nishioka R, Matsumoto H, Abe N, Nishikawa Y, Kikuchi S, Takeba J, Yano H, Yorozuya T, Sato N, Aibiki M, Tanaka J. B lymphocytopenia and Bregs in a not-to-die murine sepsis model. Biochem Biophys Res Commun 2019; 523:202-207. [PMID: 31843193 DOI: 10.1016/j.bbrc.2019.12.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 12/07/2019] [Indexed: 12/31/2022]
Abstract
Sepsis is a leading cause of mortality in intensive care units due to multi-organ failure caused by dysregulated immune reactions. In this study, kinetic changes in the immune system were analyzed for 72 h in cecal ligation and puncture (CLP)-induced septic mice while preventing animal death by keeping body temperature. Increase of myeloid cells and decrease of B cells in circulation at 6 h after CLP were markedly observed. At the same time point, interleukin (IL)-10 expressing CD5+ regulatory B cells (Bregs) appeared. IL-10 and programmed death-ligand 1 (PD-L1) mRNA as well as IL-1β, IL-6 and interferon γ (IFNγ) mRNA was increased in the spleen at 6 h. A gradual decrease in Bcl-2 and abrupt increase of Bim expression in the spleen at the late phase were also found. These results showed that B lymphocytopenia with the appearance of Bregs is the earliest event, likely leading to immunoparalysis in sepsis.
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Affiliation(s)
- Kensuke Umakoshi
- Department of Emergency and Critical Medicine, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan; Advanced Emergency and Critical Care Center, Ehime Prefectural Central Hospital, Matsuyama, Ehime, Japan
| | - Mohammed E Choudhury
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Ryutaro Nishioka
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Hironori Matsumoto
- Department of Emergency and Critical Medicine, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Naoki Abe
- Department of Anesthesia and Perioperative Medicine, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Yuki Nishikawa
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Satoshi Kikuchi
- Department of Aeromedical Services for Emergency and Trauma Care, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Jun Takeba
- Department of Aeromedical Services for Emergency and Trauma Care, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Hajime Yano
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Toshihiro Yorozuya
- Department of Anesthesia and Perioperative Medicine, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Norio Sato
- Department of Emergency and Critical Medicine, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Mayuki Aibiki
- Department of Emergency and Critical Medicine, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Junya Tanaka
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan.
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108
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Shalapour S, Karin M. Pas de Deux: Control of Anti-tumor Immunity by Cancer-Associated Inflammation. Immunity 2019; 51:15-26. [PMID: 31315033 DOI: 10.1016/j.immuni.2019.06.021] [Citation(s) in RCA: 132] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/11/2019] [Accepted: 06/24/2019] [Indexed: 12/14/2022]
Abstract
In many settings, tumor-associated inflammation, supported mainly by innate immune cells, contributes to tumor growth. Initial innate activation triggers secretion of inflammatory, regenerative, and anti-inflammatory cytokines, which in turn shape the adaptive immune response to the tumor. Here, we review the current understanding of the intricate dialog between cancer-associated inflammation and anti-tumor immunity. We discuss the changing nature of these interactions during tumor progression and the impact of the tissue environment on the anti-tumor immune response. In this context, we outline important gaps in current understanding by considering basic research and findings in the clinic. The future of cancer immunotherapy and its utility depend on improved understanding of these interactions and the ability to manipulate them in a predictable and beneficial manner.
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Affiliation(s)
- Shabnam Shalapour
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; Department of Pharmacology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Michael Karin
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; Department of Pharmacology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; Moores Cancer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
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109
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Porcellato I, Silvestri S, Menchetti L, Recupero F, Mechelli L, Sforna M, Iussich S, Bongiovanni L, Lepri E, Brachelente C. Tumour-infiltrating lymphocytes in canine melanocytic tumours: An investigation on the prognostic role of CD3 + and CD20 + lymphocytic populations. Vet Comp Oncol 2019; 18:370-380. [PMID: 31750993 DOI: 10.1111/vco.12556] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 11/18/2019] [Accepted: 11/20/2019] [Indexed: 12/16/2022]
Abstract
The study of the immune response in several types of tumours has been rapidly increasing in recent years with the dual aim of understanding the interactions between neoplastic and immune cells and their importance in cancer pathogenesis and progression, as well as identifying targets for cancer immunotherapy. Despite being considered one of the most immunogenic tumour types, melanoma can progress in the presence of abundant lymphocytic infiltration, therefore suggesting that the immune response is not able to efficiently control tumour growth. The purpose of this study was to investigate whether the density, distribution and grade of tumour-infiltrating lymphocytes (TILs) in 97 canine melanocytic tumours is associated with histologic indicators of malignancy and can be considered a prognostic factor in the dog. As a further step in the characterization of the immune response in melanocytic tumours, an immunohistochemical investigation was performed to evaluate the two main populations of TILs, T-lymphocytes (CD3+ ) and B-lymphocytes (CD20+ ). The results of our study show that TILs are present in a large proportion of canine melanocytic tumours, especially in oral melanomas, and that the infiltrate is usually mild. The quantity of CD20+ TILs was significantly associated with some histologic prognostic factors, such as the mitotic count, the cellular pleomorphism and the percentage of pigmented cells. Remarkably, a high infiltration of CD20+ TILs was associated with tumour-related death, presence of metastasis/recurrence, shorter overall and disease-free survival, increased hazard of death and of developing recurrence/metastasis, hence representing a potential new negative prognostic factor in canine melanocytic tumours.
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Affiliation(s)
- Ilaria Porcellato
- Department of Veterinary Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Serenella Silvestri
- Department of Veterinary Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Laura Menchetti
- Department of Veterinary Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Francesca Recupero
- Department of Veterinary Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Luca Mechelli
- Department of Veterinary Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Monica Sforna
- Department of Veterinary Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Selina Iussich
- Department of Veterinary Science, Università degli Studi di Torino, Turin, Italy
| | - Laura Bongiovanni
- Faculty of Veterinary Medicine, Università degli Studi di Teramo, Teramo, Italy
| | - Elvio Lepri
- Department of Veterinary Medicine, Università degli Studi di Perugia, Perugia, Italy
| | - Chiara Brachelente
- Department of Veterinary Medicine, Università degli Studi di Perugia, Perugia, Italy
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110
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Peripheral CD19+CD24highCD38high B-regulatory cells in lung transplant recipients. Transpl Immunol 2019; 57:101245. [DOI: 10.1016/j.trim.2019.101245] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/07/2019] [Accepted: 09/13/2019] [Indexed: 10/26/2022]
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111
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B Cells Produce the Tissue-Protective Protein RELMα during Helminth Infection, which Inhibits IL-17 Expression and Limits Emphysema. Cell Rep 2019; 25:2775-2783.e3. [PMID: 30517865 PMCID: PMC9413029 DOI: 10.1016/j.celrep.2018.11.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 07/18/2018] [Accepted: 11/08/2018] [Indexed: 11/30/2022] Open
Abstract
Emphysema results in destruction of alveolar walls and enlargement of lung airspaces and has been shown to develop during helminth infections through IL-4R-independent mechanisms. We examined whether interleukin 17A (IL-17A) may instead modulate development of emphysematous pathology in mice infected with the helminth parasite Nippostrongylus brasiliensis. We found that transient elevations in IL-17A shortly after helminth infection triggered sub-sequent emphysema that destroyed alveolar structures. Furthermore, lung B cells, activated through IL-4R signaling, inhibited early onset of emphysematous pathology. IL-10 and other regulatory cytokines typically associated with B regulatory cell function did not play a major role in this response. Instead, at early stages of the response, B cells produced high levels of the tissue-protective protein, Resistin-like molecule α (RELMα), which then downregulated IL-17A expression. These studies show that transient elevations in IL-17A trigger emphysema and reveal a helminth-induced immune regulatory mechanism that controls IL-17A and the severity of emphysema. Emphysema causes pathology that can compromise lung function, and mechanisms for reducing disease severity remain unclear. Using a helminth model, Chen et al. show that type 2 immune response triggers lung B cells to produce RELMα, which then downregulates IL-17 production in the lung to limit emphysema. ![]()
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112
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Emerging role of innate B1 cells in the pathophysiology of autoimmune and neuroimmune diseases: Association with inflammation, oxidative and nitrosative stress and autoimmune responses. Pharmacol Res 2019; 148:104408. [DOI: 10.1016/j.phrs.2019.104408] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 12/16/2022]
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113
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Characterization of intratumoral and circulating IL-10-producing B cells in gastric cancer. Exp Cell Res 2019; 384:111652. [PMID: 31574287 DOI: 10.1016/j.yexcr.2019.111652] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 01/05/2023]
Abstract
The tumor microenvironment harbors multiple immunosuppressive mechanisms, many of which involve suppressive immune cells. B regulatory (Breg) cells, as critical regulators of immune responses, were investigated in patients with gastric carcinoma. In the present study, the B cells that expressed IL-10 were highly enriched in tumor-infiltrating B cells, and could also be found at reduced frequencies in circulating B cells. These cells expressed high CD19 and CD20, and were almost exclusively CD27+CD10-. The IL-10 expression was significantly higher in CD27+CD10--sorted B cells than in CD27-CD10--sorted B cells. In an in vitro coculture of B cells and autologous T cells, CD27+CD10- B cells were capable of reducing the levels of CD4 T cell-mediated IFNγ, TNF, and IL-17 expression and the levels of CD8 T cell-mediated IFNγ and TNF expression. These regulatory effects were dependent on IL-10 as well as CD80/CD86. Interestingly, CD27+CD10- B cells also significantly elevated IL-10 production from CD4 and CD8 T cells in an IL-10-dependent manner. Overall, we here report enrichment of IL-10-expressing CD27+CD10- B cells in the intratumoral environment, which could significantly alter the cytokine production profile by CD4 and CD8 T cells.
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114
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Auclair H, Ouk-Martin C, Roland L, Santa P, Al Mohamad H, Faumont N, Feuillard J, Jayat-Vignoles C. EBV Latency III-Transformed B Cells Are Inducers of Conventional and Unconventional Regulatory T Cells in a PD-L1-Dependent Manner. THE JOURNAL OF IMMUNOLOGY 2019; 203:1665-1674. [PMID: 31434708 DOI: 10.4049/jimmunol.1801420] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 07/16/2019] [Indexed: 01/28/2023]
Abstract
EBV infects and immortalizes B cells in vitro and in vivo. It is the causative agent of most immune deficiency-related lymphoproliferative disorders and is associated with various lymphomas. EBV latency III-transformed B cells are known to express two immunosuppressive molecules, IL-10 and PD-L1, two characteristics of regulatory B cells (Bregs). In this study, we show that, in addition to secretion of the Breg immunosuppressive cytokines IL-10, IL-35, and TGF-β1, EBV latency III-transformed B cells were able to repress proliferation of their autologous T cells preactivated by CD2, CD3, and CD28. This inhibitory effect was likely caused by CD4+ T cells because EBV latency III-transformed B cells induced a strong proliferation of isolated autologous CD8 T cells. Indeed, EBV was able to promote expansion of autologous FOXP3+ CD39high CTLA4+, Helios+, GITR+, LAG3+ CD4 T cells (i.e., regulatory T cells [Tregs]). Two types of Tregs were induced: unconventional CD25neg and conventional CD25pos Tregs. These Tregs expressed both the latency-associated peptide (LAP) and the PD-1 receptor, two markers of functional Tregs. Expansion of both Treg subtypes depended on PD-L1, whose expression was under the control of LMP1, the main EBV oncogene. These results demonstrate that, like Bregs, EBV latency III-transformed B cells exhibit strong immunoregulatory properties. These data provide clues to the understanding of how after EBV primo-infection, EBV-proliferating B cells can survive in an aggressive immunological environment and later emerge to give rise to EBV-associated B cell lymphomas such as in elderly patients.
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Affiliation(s)
- Héloïse Auclair
- UMR CNRS 7276, INSERM 1262, Faculté de Médecine, Université de Limoges, F-87025 Limoges Cedex, France; and
| | - Catherine Ouk-Martin
- UMR CNRS 7276, INSERM 1262, Faculté de Médecine, Université de Limoges, F-87025 Limoges Cedex, France; and
| | - Lilian Roland
- UMR CNRS 7276, INSERM 1262, Faculté de Médecine, Université de Limoges, F-87025 Limoges Cedex, France; and
| | - Pauline Santa
- UMR CNRS 7276, INSERM 1262, Faculté de Médecine, Université de Limoges, F-87025 Limoges Cedex, France; and
| | - Hazar Al Mohamad
- UMR CNRS 7276, INSERM 1262, Faculté de Médecine, Université de Limoges, F-87025 Limoges Cedex, France; and
| | - Nathalie Faumont
- UMR CNRS 7276, INSERM 1262, Faculté de Médecine, Université de Limoges, F-87025 Limoges Cedex, France; and
| | - Jean Feuillard
- UMR CNRS 7276, INSERM 1262, Faculté de Médecine, Université de Limoges, F-87025 Limoges Cedex, France; and.,Le Centre Hospitalier Universitaire Dupuytren, Laboratoire d'Hématologie, F-87042 Limoges Cedex, France
| | - Chantal Jayat-Vignoles
- UMR CNRS 7276, INSERM 1262, Faculté de Médecine, Université de Limoges, F-87025 Limoges Cedex, France; and
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Chakraborty D, Pati S, Bose S, Dhar S, Dutta S, Sa G. Cancer immunotherapy: present scenarios and the future of immunotherapy. THE NUCLEUS 2019. [DOI: 10.1007/s13237-019-00273-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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116
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Fang J, Lin L, Lin D, Zhang R, Liu X, Wang D, Duan C, Lin X. The imbalance between regulatory memory B cells reveals possible pathogenesis involvement in pediatric immune thrombocytopenia. ACTA ACUST UNITED AC 2019; 24:473-479. [PMID: 31142214 DOI: 10.1080/16078454.2019.1622292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Introduction: CD19+CD24hiCD38hi regulatory B cells (Bregs) and CD19+CD27+ memory B cells (Bmems) are B cell subsets with specific immunoregulatory properties. In this study, the balance of these subsets was investigated in pediatric immune thrombocytopenia (ITP) patients, and the frequencies of Bregs and Bmems before and after first-line therapy were measured. Methods: Forty-nine pediatric ITP patients and 19 normal controls were enrolled in this study. The total CD19+ B cells, Bregs and Bmems in the peripheral blood (PB) of all cases were measured by flow cytometry. Results: We found higher frequencies of total CD19+ B cells and Bmems in newly diagnosed ITP patients than those in normal controls (p < 0.01), whereas the frequencies of CD19+CD24hiCD38hi Bregs was significantly lower in ITP patients (p < 0.001). After therapy with MP + IVIG, the level of CD19+CD24hiCD38hi Bregs and Bmems were almost normalized. Conclusion: Our results indicated that pediatric ITP patients were characterized by a decline in CD19+CD24hiCD38hi Bregs and increment of CD19+CD27+Bmems, and an increase of total CD19+ B cells in their peripheral blood.
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Affiliation(s)
- Junyue Fang
- a Department of Clinical Laboratory , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China.,b Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China
| | - Li Lin
- b Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China.,c Department of Dermatology , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China
| | - Dijin Lin
- a Department of Clinical Laboratory , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China.,b Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China
| | - Ruihao Zhang
- a Department of Clinical Laboratory , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China.,b Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China
| | - Xiuli Liu
- a Department of Clinical Laboratory , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China.,b Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China
| | - Di Wang
- d Department of Pediatrics , The First Affiliated Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China
| | - Chaohui Duan
- a Department of Clinical Laboratory , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China.,b Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China
| | - Xianghua Lin
- a Department of Clinical Laboratory , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China.,b Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation , Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University , Guangzhou , People's Republic of China
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117
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Wiest M, Upchurch K, Hasan MM, Cardenas J, Lanier B, Millard M, Turner J, Oh S, Joo H. Phenotypic and functional alterations of regulatory B cell subsets in adult allergic asthma patients. Clin Exp Allergy 2019; 49:1214-1224. [PMID: 31132180 DOI: 10.1111/cea.13439] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 04/25/2019] [Accepted: 05/20/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND IL-10-producing regulatory B cells (Bregs) are widely ascribed immune regulatory functions. However, Breg subsets in human asthma have not been fully investigated. OBJECTIVE We studied Breg subsets in adult allergic asthma patients by assessing two major parameters, frequency and IL-10 expression. We then investigated factors that affect these two parameters in patients. METHODS Peripheral blood mononuclear cells (PBMCs) of adult allergic asthma patients (N = 26) and non-asthmatic controls (N = 28) were used to assess the frequency of five subsets of transitional B cells (TBs), three subsets of CD24high CD27+ B cells and B1 cells. In addition to clinical data, IL-10 expression by individual Breg subsets was assessed by flow cytometry. RESULTS Asthma patients had decreases of CD5+ and CD1d+ CD5+ , but an increase of CD27+ TBs which was significant in patients with moderate asthma (60 < FEV1 < 80). Regardless of asthma severity, there was no significant alteration in the frequencies of 6 other Breg subsets tested. However, we found that oral corticosteroid (OCS) significantly affected the frequency of Bregs in Breg subset-specific manners. OCS decreased CD5+ and CD1d+ CD5+ TBs, but increased CD27+ TBs and CD10+ CD24high CD27+ cells. Furthermore, OCS decreased IL-10 expression by CD27+ TBs, all 3 CD24high CD27+ B cell subsets (CD5+ , CD10+ and CD1d+ ) and B1 cells. OCS-mediated inhibition of IL-10 expression was not observed in the other Breg subsets tested. CONCLUSION & CLINICAL RELEVANCE Alterations in the frequency of Bregs and their ability to express IL-10 are Breg subset-specific. OCS treatment significantly affects the frequency as well as their ability to express IL-10 in Breg subset-specific manners.
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Affiliation(s)
- Mathew Wiest
- Department of Immunology, Mayo Clinic, Scottsdale, Arizona.,Institute for Biomedical Studies, Baylor University, Waco, Texas
| | | | - Md Mahmudul Hasan
- Department of Immunology, Mayo Clinic, Scottsdale, Arizona.,Institute for Biomedical Studies, Baylor University, Waco, Texas
| | | | - Bobby Lanier
- North Texas Institute for Clinical Trials, Ft Worth, Texas
| | - Mark Millard
- Martha Foster Lung Care Center, Baylor University Medical Center, Dallas, Texas
| | - Jacob Turner
- Baylor Institute for Immunology Research, Dallas, Texas
| | - SangKon Oh
- Department of Immunology, Mayo Clinic, Scottsdale, Arizona.,Institute for Biomedical Studies, Baylor University, Waco, Texas
| | - HyeMee Joo
- Department of Immunology, Mayo Clinic, Scottsdale, Arizona.,Institute for Biomedical Studies, Baylor University, Waco, Texas
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118
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Mishima Y, Oka A, Liu B, Herzog JW, Eun CS, Fan TJ, Bulik-Sullivan E, Carroll IM, Hansen JJ, Chen L, Wilson JE, Fisher NC, Ting JP, Nochi T, Wahl A, Garcia JV, Karp CL, Sartor RB. Microbiota maintain colonic homeostasis by activating TLR2/MyD88/PI3K signaling in IL-10-producing regulatory B cells. J Clin Invest 2019; 129:3702-3716. [PMID: 31211700 DOI: 10.1172/jci93820] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Resident microbiota activate regulatory cells that modulate intestinal inflammation and promote and maintain intestinal homeostasis. IL-10 is a key mediator of immune regulatory function. Our studies described the functional importance and mechanisms by which gut microbiota and specific microbial components influenced the development of intestinal IL-10-producing B cells. We used fecal transplant to germ-free (GF) Il10+/EGFP reporter and Il10-/- mice to demonstrate that microbiota from specific pathogen-free mice primarily stimulated IL-10-producing colon-specific B cells and T regulatory-1 cells in ex-GF mice. IL-10 in turn down-regulated microbiota-activated mucosal inflammatory cytokines. TLR2/9 ligands and enteric bacterial lysates preferentially induced IL-10 production and regulatory capacity of intestinal B cells. Analysis of Il10+/EGFP mice crossed with additional gene-deficient strains and B cell co-transfer studies demonstrated that microbiota-induced IL-10-producing intestinal B cells ameliorated chronic T cell-mediated colitis in a TLR2, MyD88 and PI3K-dependent fashion. In vitro studies implicated PI3Kp110δ and AKT downstream signaling. These studies demonstrated that resident enteric bacteria activated intestinal IL-10-producing B cells through TLR2, MyD88 and PI3K pathways. These B cells reduced colonic T cell activation and maintained mucosal homeostasis in response to intestinal microbiota.
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Affiliation(s)
- Yoshiyuki Mishima
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill (UNC), Chapel Hill, North Carolina, USA.,Department of Internal Medicine II, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Akihiko Oka
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill (UNC), Chapel Hill, North Carolina, USA.,Department of Internal Medicine II, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Bo Liu
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill (UNC), Chapel Hill, North Carolina, USA
| | - Jeremy W Herzog
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill (UNC), Chapel Hill, North Carolina, USA
| | - Chang Soo Eun
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill (UNC), Chapel Hill, North Carolina, USA.,Department of Internal Medicine, Hanyang University Guri Hospital, Guri, South Korea
| | - Ting-Jia Fan
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill (UNC), Chapel Hill, North Carolina, USA.,Department of Microbiology and Immunology
| | | | - Ian M Carroll
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill (UNC), Chapel Hill, North Carolina, USA.,Department of Nutrition
| | - Jonathan J Hansen
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill (UNC), Chapel Hill, North Carolina, USA.,Department of Microbiology and Immunology
| | - Liang Chen
- Lineberger Comprehensive Cancer Center, Department of Genetics, and
| | - Justin E Wilson
- Lineberger Comprehensive Cancer Center, Department of Genetics, and
| | | | - Jenny Py Ting
- Lineberger Comprehensive Cancer Center, Department of Genetics, and
| | - Tomonori Nochi
- Department of Medicine, Division of Infectious Diseases, UNC, Chapel Hill, North Carolina, USA.,Mucosal Immunology Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Angela Wahl
- Department of Medicine, Division of Infectious Diseases, UNC, Chapel Hill, North Carolina, USA
| | - J Victor Garcia
- Department of Medicine, Division of Infectious Diseases, UNC, Chapel Hill, North Carolina, USA
| | - Christopher L Karp
- Division of Molecular Immunology, Department of Pediatrics, Cincinnati Children's Hospital Research Center, Cincinnati, Ohio, USA
| | - R Balfour Sartor
- Center for Gastrointestinal Biology and Disease, Department of Medicine, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill (UNC), Chapel Hill, North Carolina, USA.,Department of Microbiology and Immunology
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119
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Moore DK, Loxton AG. Regulatory B lymphocytes: development and modulation of the host immune response during disease. Immunotherapy 2019; 11:691-704. [DOI: 10.2217/imt-2018-0185] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The role of B lymphocytes (B cells) in immunogenic responses has become increasingly important over the past decade, focusing on a new B-cell subtype: regulatory B-cells (Bregs). These Bregs have been shown to possess potent immunosuppressive activities and have identified as key players in disease control and immune tolerance. In this review, the occurrence of Breg type in various conditions, along with evidence supporting discovered functions and proposed purposes will be explored. An example of such regulatory functions includes the induction or suppression of various T lymphocyte phenotypes in response to a particular stimulus. Should Bregs prove effective in mediating immune responses, and correlate with favorable disease outcome, they may serve as a novel therapeutic to combat disease and prevent infection. However, the induction, function and stability of these cells remain unclear and further investigation is needed to better understand their role and therapeutic efficacy.
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Affiliation(s)
- Dannielle K Moore
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research, Stellenbosch University, Cape Town, South Africa, 8000
- South African Medical Research Council Centre for Tuberculosis Research, Stellenbosch University, Cape Town, South Africa, 8000
- Faculty of Medicine & Health Sciences, Division of Molecular Biology & Human Genetics, Stellenbosch University, Cape Town, South Africa, 8000
| | - Andre G Loxton
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research, Stellenbosch University, Cape Town, South Africa, 8000
- South African Medical Research Council Centre for Tuberculosis Research, Stellenbosch University, Cape Town, South Africa, 8000
- Faculty of Medicine & Health Sciences, Division of Molecular Biology & Human Genetics, Stellenbosch University, Cape Town, South Africa, 8000
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Powell WE, Hanna SJ, Hocter CN, Robinson E, Lewis M, Dunseath G, Luzio S, Howell A, Dayan CM, Wong FS. Detecting autoreactive B cells in the peripheral blood of people with type 1 diabetes using ELISpot. J Immunol Methods 2019; 471:61-65. [PMID: 31152768 DOI: 10.1016/j.jim.2019.05.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 05/28/2019] [Indexed: 01/12/2023]
Abstract
Type 1 diabetes mellitus (T1D) is an autoimmune disorder where T lymphocytes damage the islet beta cells but B lymphocytes also play an important role. Although changes in peripheral B cell phenotype have been observed, little is known about the B cells that secrete the autoantibodies. We developed a sensitive B cell enzyme-linked immunospot assay (ELISpot assay) to detect individual B cell antibody responses to glutamic acid decarboxylase (GAD) and islet antigen-2 (IA-2). We found that even healthy donors have B cells that secrete antibodies in response to GAD and IA-2 in the ELISpot. There was increased B cell reactivity to autoantigens in the peripheral blood of individuals with newly-diagnosed, but not long-standing, type 1 diabetes. However, no correlation with serum autoantibody levels was found, indicating that additional factors such as antigen affinity or exposure to antigens in vivo are required for antibody secretion, and that even healthy donors have potentially autoreactive B cells.
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Affiliation(s)
- W E Powell
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - S J Hanna
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - C N Hocter
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - E Robinson
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - M Lewis
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - G Dunseath
- Diabetes Research Unit Cymru, Grove Building, Swansea University, Swansea SA2 8PP, UK
| | - S Luzio
- Diabetes Research Unit Cymru, Grove Building, Swansea University, Swansea SA2 8PP, UK
| | - A Howell
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - C M Dayan
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - F S Wong
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK.
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Ritter M, Osei-Mensah J, Debrah LB, Kwarteng A, Mubarik Y, Debrah AY, Pfarr K, Hoerauf A, Layland LE. Wuchereria bancrofti-infected individuals harbor distinct IL-10-producing regulatory B and T cell subsets which are affected by anti-filarial treatment. PLoS Negl Trop Dis 2019; 13:e0007436. [PMID: 31120872 PMCID: PMC6550419 DOI: 10.1371/journal.pntd.0007436] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 06/05/2019] [Accepted: 05/03/2019] [Indexed: 11/18/2022] Open
Abstract
Despite worldwide mass drug administration, it is estimated that 68 million individuals are still infected with lymphatic filariasis with 19 million hydrocele and 17 million lymphedema reported cases. Despite the staggering number of pathology cases, the majority of LF-infected individuals do not develop clinical symptoms and present a tightly regulated immune system characterized by higher frequencies of regulatory T cells (Treg), suppressed proliferation and Th2 cytokine responses accompanied with increased secretion of IL-10, TGF-β and infection-specific IgG4. Nevertheless, the filarial-induced modulation of the host`s immune system and especially the role of regulatory immune cells like regulatory B (Breg) and Treg during an ongoing LF infection remains unknown. Thus, we analysed Breg and Treg frequencies in peripheral blood from Ghanaian uninfected endemic normals (EN), lymphedema (LE), asymptomatic patent (CFA+MF+) and latent (CFA+MF-) W. bancrofti-infected individuals as well as individuals who were previously infected with W. bancrofti (PI) but had cleared the infection due to the administration of ivermectin (IVM) and albendazole (ALB). In summary, we observed that IL-10-producing CD19+CD24highCD38dhigh Breg were specifically increased in patently infected (CFA+MF+) individuals. In addition, CD19+CD24highCD5+CD1dhigh and CD19+CD5+CD1dhighIL-10+ Breg as well as CD4+CD127-FOXP3+ Treg frequencies were significantly increased in both W. bancrofti-infected cohorts (CFA+MF+ and CFA+MF-). Interestingly, the PI cohort presented frequency levels of all studied regulatory immune cell populations comparable with the EN group. In conclusion, the results from this study show that an ongoing W. bancrofti infection induces distinct Breg and Treg populations in peripheral blood from Ghanaian volunteers. Those regulatory immune cell populations might contribute to the regulated state of the host immune system and are probably important for the survival and fertility (microfilaria release) of the helminth. Regulation of the host`s immune system by filarial nematodes is crucial for the fertility and survival of the nematode. Indeed, the majority of W. bancrofti-infected individuals are characterized by a regulated state including increased regulatory T cells (Treg), IL-10, TGF-β and filarial-specific IgG4 and suppressed Th2 cytokine responses. However, the functional role of Treg populations and regulatory B cells (Breg) during filarial infection remains unknown. Thus, in this study we investigated whether W. bancrofti-infected individuals from Ghana harbored distinct Breg and Treg populations which might be important for filarial-specific immunomodulation. Overall, this study shows that W. bancrofti induces distinct Breg populations, especially in patently (microfilaremic) infected individuals who presented significantly increased frequencies of IL-10-producing CD19+CD24highCD38dhigh Breg. Furthermore, clearance of the infection, due to anti-filarial treatment, returned these regulatory immune cells to homeostatic levels showing that an ongoing filarial infection is important for the activation of distinct Breg and Treg subsets. Those regulatory immune cell subsets are a part of a complex system which are induced by filarial nematodes to modulate the host`s immune system and maintain long-term survival.
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Affiliation(s)
- Manuel Ritter
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
- * E-mail:
| | - Jubin Osei-Mensah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
- Department of Clinical Microbiology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Alexander Kwarteng
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Yusif Mubarik
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Alexander Y. Debrah
- Faculty of Allied Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Kenneth Pfarr
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
- German Centre for Infection Research (DZIF), partner site Bonn-Cologne, Bonn, Germany
| | - Achim Hoerauf
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
- German Centre for Infection Research (DZIF), partner site Bonn-Cologne, Bonn, Germany
| | - Laura E. Layland
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
- German Centre for Infection Research (DZIF), partner site Bonn-Cologne, Bonn, Germany
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Menegatti S, Bianchi E, Rogge L. Anti-TNF Therapy in Spondyloarthritis and Related Diseases, Impact on the Immune System and Prediction of Treatment Responses. Front Immunol 2019; 10:382. [PMID: 30941119 PMCID: PMC6434926 DOI: 10.3389/fimmu.2019.00382] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 02/14/2019] [Indexed: 12/14/2022] Open
Abstract
Immune-mediated inflammatory diseases (IMIDs), such as spondyloarthritis (SpA), psoriasis, Crohn's disease (CD), and rheumatoid arthritis (RA) remain challenging illnesses. They often strike at a young age and cause lifelong morbidity, representing a considerable burden for the affected individuals and society. Pioneering studies have revealed the presence of a TNF-dependent proinflammatory cytokine cascade in several IMIDs, and the introduction of anti-TNF therapy 20 years ago has proven effective to reduce inflammation and clinical symptoms in RA, SpA, and other IMID, providing unprecedented clinical benefits and a valid alternative in case of failure or intolerable adverse effects of conventional disease-modifying antirheumatic drugs (DMARDs, for RA) or non-steroidal anti-inflammatory drugs (NSAIDs, for SpA). However, our understanding of how TNF inhibitors (TNFi) affect the immune system in patients is limited. This question is relevant because anti-TNF therapy has been associated with infectious complications. Furthermore, clinical efficacy of TNFi is limited by a high rate of non-responsiveness (30–40%) in RA, SpA, and other IMID, exposing a substantial fraction of patients to side-effects without clinical benefit. Despite the extensive use of TNFi, it is still not possible to determine which patients will respond to TNFi before treatment initiation. The recent introduction of antibodies blocking IL-17 has expanded the therapeutic options for SpA, as well as psoriasis and psoriatic arthritis. It is therefore essential to develop tools to guide treatment decisions for patients affected by SpA and other IMID, both to optimize clinical care and contain health care costs. After a brief overview of the biology of TNF, its receptors and currently used TNFi in the clinics, we summarize the progress that has been made to increase our understanding of the action of TNFi on the immune system in patients. We then summarize efforts dedicated to identify biomarkers that can predict treatment responses to TNFi and we conclude with a section dedicated to the recently introduced inhibitors of IL-17A and IL-23 in SpA and related diseases. The focus of this review is on SpA, however, we also refer to RA on topics for which only limited information is available on SpA in the literature.
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Affiliation(s)
- Silvia Menegatti
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Unité Mixte de Recherche, Institut Pasteur/AP-HP Hôpital Cochin, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Elisabetta Bianchi
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Unité Mixte de Recherche, Institut Pasteur/AP-HP Hôpital Cochin, Paris, France
| | - Lars Rogge
- Immunoregulation Unit, Department of Immunology, Institut Pasteur, Paris, France.,Unité Mixte de Recherche, Institut Pasteur/AP-HP Hôpital Cochin, Paris, France
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Guram K, Kim SS, Wu V, Sanders PD, Patel S, Schoenberger SP, Cohen EEW, Chen SY, Sharabi AB. A Threshold Model for T-Cell Activation in the Era of Checkpoint Blockade Immunotherapy. Front Immunol 2019; 10:491. [PMID: 30936880 PMCID: PMC6431643 DOI: 10.3389/fimmu.2019.00491] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 02/22/2019] [Indexed: 12/13/2022] Open
Abstract
Continued discoveries of negative regulators of inflammatory signaling provide detailed molecular insights into peripheral tolerance and anti-tumor immunity. Accumulating evidence indicates that peripheral tolerance is maintained at multiple levels of immune responses by negative regulators of proinflammatory signaling, soluble anti-inflammatory factors, inhibitory surface receptors & ligands, and regulatory cell subsets. This review provides a global overview of these regulatory machineries that work in concert to maintain peripheral tolerance at cellular and host levels, focusing on the direct and indirect regulation of T cells. The recent success of checkpoint blockade immunotherapy (CBI) has initiated a dramatic shift in the paradigm of cancer treatment. Unprecedented responses to CBI have highlighted the central role of T cells in both anti-tumor immunity and peripheral tolerance and underscored the importance of T cell exhaustion in cancer. We discuss the therapeutic implications of modulating the negative regulators of T cell function for tumor immunotherapy with an emphasis on inhibitory surface receptors & ligands—central players in T cell exhaustion and targets of checkpoint blockade immunotherapies. We then introduce a Threshold Model for Immune Activation—the concept that these regulatory mechanisms contribute to defining a set threshold of immunogenic (proinflammatory) signaling required to elicit an anti-tumor or autoimmune response. We demonstrate the value of the Threshold Model in understanding clinical responses and immune related adverse events in the context of peripheral tolerance, tumor immunity, and the era of Checkpoint Blockade Immunotherapy.
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Affiliation(s)
- Kripa Guram
- Department of Radiation Medicine and Applied Sciences, San Diego Moores Cancer Center, University of California, San Diego, San Diego, CA, United States
| | - Sangwoo S Kim
- Department of Radiation Medicine and Applied Sciences, San Diego Moores Cancer Center, University of California, San Diego, San Diego, CA, United States
| | - Victoria Wu
- Moores Comprehensive Cancer Center, University of California, San Diego, San Diego, CA, United States
| | - P Dominick Sanders
- Department of Radiation Medicine and Applied Sciences, San Diego Moores Cancer Center, University of California, San Diego, San Diego, CA, United States
| | - Sandip Patel
- Division of Hematology and Oncology, Center for Personalized Cancer Therapy, San Diego Moores Cancer Center, University of California, San Diego, San Diego, CA, United States
| | - Stephen P Schoenberger
- Division of Hematology and Oncology, Center for Personalized Cancer Therapy, San Diego Moores Cancer Center, University of California, San Diego, San Diego, CA, United States.,Laboratory of Cellular Immunology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, United States
| | - Ezra E W Cohen
- Moores Comprehensive Cancer Center, University of California, San Diego, San Diego, CA, United States
| | - Si-Yi Chen
- Department of Molecular Microbiology and Immunology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, United States
| | - Andrew B Sharabi
- Department of Radiation Medicine and Applied Sciences, San Diego Moores Cancer Center, University of California, San Diego, San Diego, CA, United States.,Moores Comprehensive Cancer Center, University of California, San Diego, San Diego, CA, United States
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Zhu G, Liu Y, Zhang W, Huang Y, Li K. CD27 +TIM-1 + memory B cells promoted the development of Foxp3 + Tregs and were associated with better survival in acute respiratory distress syndrome. Immunol Res 2019; 66:281-287. [PMID: 29392553 DOI: 10.1007/s12026-017-8983-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is a rapid onset life-threatening condition involving uncontrolled propagation of inflammatory responses. Here, we observed that ARDS patients that survived presented significantly higher frequencies of TIM-1+ B cells, especially the CD27+TIM-1+ B cells, than the ARDS patients who succumbed to the condition. We then found that using BCR/CD40 antigen-dependent stimulation or Staphylococcus aureus Cowan (SAC) antigen-independent stimulation, TIM-1+ B cells presented significantly higher IL-10 secretion and/or TGF-β1 secretion, with SAC stimulation being more effective. CD4+ T cells that incubated with TIM-1+ B cells presented significantly elevated IL-10 secretion, TGF-β1 secretion, and Foxp3 expression, than CD4+ T cells that incubated with TIM-1- B cells, suggesting TIM-1+ B cells promoted the in vitro development of Foxp3+ Treg cells. Interestingly, this TIM-1+ B cell-mediated promotion of Foxp3 expression was mostly dependent on TGF-β1 but not IL-10, since neutralization of TGF-β1, but not IL-10, resulted in the suppression of Foxp3 expression. We further showed that in TIM-1+ B cells, the CD27+ classical memory B cell subset demonstrated more regulatory potency than the CD27- subset. Together, our results suggested that the TIM-1+ B cells, especially those that expressed CD27, could promote Foxp3 expression. Their clinical efficacy in treating ARDS should be examined in in vivo experiments.
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Affiliation(s)
- Guangfa Zhu
- Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Beijing, 100029, People's Republic of China. .,Department of Infectious Diseases, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, People's Republic of China.
| | - Yan Liu
- Department of Infectious Diseases, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, People's Republic of China
| | - Wenmei Zhang
- Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Beijing, 100029, People's Republic of China
| | - Yan Huang
- Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Beijing, 100029, People's Republic of China
| | - Keng Li
- Department of Infectious Diseases, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, People's Republic of China
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Severa M, Zhang J, Giacomini E, Rizzo F, Etna MP, Cruciani M, Garaci E, Chopp M, Coccia EM. Thymosins in multiple sclerosis and its experimental models: moving from basic to clinical application. Mult Scler Relat Disord 2019; 27:52-60. [PMID: 30317071 PMCID: PMC7104151 DOI: 10.1016/j.msard.2018.09.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/20/2018] [Accepted: 09/30/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Multiple sclerosis (MS) afflicts more than 2.5 million individuals worldwide and this number is increasing over time. Within the past years, a great number of disease-modifying treatments have emerged; however, efficacious treatments and a cure for MS await discovery. Thymosins, soluble hormone-like peptides produced by the thymus gland, can mediate immune and non-immune physiological processes and have gained interest in recent years as therapeutics in inflammatory and autoimmune diseases. METHODS Pubmed was searched with no time constraints for articles using a combination of the keywords "thymosin/s" or "thymus factor/s" AND "multiple sclerosis", mesh terms with no language restriction. RESULTS Here, we review the state-of-the-art on the effects of thymosins on MS and its experimental models. In particular, we describe what is known in this field on the roles of thymosin-α1 (Tα1) and -β4 (Tβ4) as potential anti-inflammatory as well as neuroprotective and remyelinating molecules and their mechanisms of action. CONCLUSION Based on the data that Tα1 and Tβ4 act as anti-inflammatory molecules and as inducers of myelin repair and neuronal protection, respectively, a possible therapeutic application in MS for Tα1 and Tβ4 alone or combined with other approved drugs may be envisaged. This approach is reasonable in light of the current clinical usage of Tα1 and data demonstrating the safety, tolerability and efficacy of Tβ4 in clinical practice.
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Affiliation(s)
- Martina Severa
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Jing Zhang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - Elena Giacomini
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Fabiana Rizzo
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Marilena Paola Etna
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Melania Cruciani
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Enrico Garaci
- University San Raffaele and IRCCS San Raffaele, Rome, Italy
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA,Department of Physics, Oakland University, Rochester, MI, USA
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Older Human B Cells and Antibodies. HANDBOOK OF IMMUNOSENESCENCE 2019. [PMCID: PMC7121151 DOI: 10.1007/978-3-319-99375-1_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
B cells have a number of different roles in the immune response. Their excellent antigen presentation potential can contribute to the activation of other cells of the immune system, and evidence is emerging that specialized subsets of these cells, that may be increased with age, can influence the cell-mediated immune system in antitumor responses. They can also regulate immune responses, to avoid autoreactivity and excessive inflammation. Deficiencies in regulatory B cells may be beneficial in cancer but will only exacerbate the inflammatory environment that is a hallmark of aging. The B cell role as antibody producers is particularly important, since antibodies perform numerous different functions in different environments. Although studying tissue responses in humans is not as easy as in mice, we do know that certain classes of antibodies are more suited to protecting the mucosal tissues (IgA) or responding to T-independent bacterial polysaccharide antigens (IgG2) so we can make some inference with respect to tissue-specific immunity from a study of peripheral blood. We can also make inferences about changes in B cell development with age by looking at the repertoire of different B cell populations to see how age affects the selection events that would normally occur to avoid autoreactivity, or increase specificity, to antigen.
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Menon M, Rosser EC, Mauri C. Identification and Isolation of Regulatory B Cells in Mouse and Human. Methods Mol Biol 2019; 1899:55-66. [PMID: 30649765 DOI: 10.1007/978-1-4939-8938-6_5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Regulatory B cells (Bregs) suppress immune response via the provision of IL-10. Due to the phenotypic heterogeneity of described Bregs, it is important to have standardized protocols for their isolation and identification. Previous work by our laboratory has shown that the immature B-cell populations in the murine spleen and human peripheral blood produce the highest levels of IL-10 on engagement of CD40, and can suppress pro-inflammatory T-cell differentiation. In this chapter, we describe the methods necessary for the isolation of this subset of Bregs and their activation via CD40 in vitro.
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Affiliation(s)
- Madhvi Menon
- Centre for Rheumatology, Division of Medicine, University College London, 5 University Street, London, WC1E 6JF, UK
| | - Elizabeth C Rosser
- Centre for Rheumatology, Division of Medicine, University College London, 5 University Street, London, WC1E 6JF, UK
| | - Claudia Mauri
- Centre for Rheumatology, Division of Medicine, University College London, 5 University Street, London, WC1E 6JF, UK.
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128
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Brosseau C, Durand M, Colas L, Durand E, Foureau A, Cheminant MA, Bouchaud G, Castan L, Klein M, Magnan A, Brouard S. CD9 + Regulatory B Cells Induce T Cell Apoptosis via IL-10 and Are Reduced in Severe Asthmatic Patients. Front Immunol 2018; 9:3034. [PMID: 30622536 PMCID: PMC6308143 DOI: 10.3389/fimmu.2018.03034] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 12/07/2018] [Indexed: 12/28/2022] Open
Abstract
CD9 was recently identified as a marker of murine IL-10-competent regulatory B cells. Functional impairments or defects in CD9+ IL-10-secreting regulatory B cells are associated with enhanced asthma-like inflammation and airway hyperresponsiveness. In mouse models, all asthma-related features can be abrogated by CD9+ B cell adoptive transfer. We aimed herein to decipher the profiles, features, and molecular mechanisms of the regulatory properties of CD9+ B cells in human and mouse. The profile of CD9+ B cells was analyzed using blood from severe asthmatic patients and normal and asthmatic mice by flow cytometry. The regulatory effects of mouse CD9+ B cells on effector T cell death, cell cycle arrest, apoptosis, and mitochondrial depolarization were determined using yellow dye, propidium iodide, Annexin V, and JC-1 staining. MAPK phosphorylation was analyzed by western blotting. Patients with severe asthma and asthmatic mice both harbored less CD19+CD9+ B cells, although these cells displayed no defect in their capacity to induce T cell apoptosis. Molecular mechanisms of regulation of CD9+ B cells characterized in mouse showed that they induced effector T cell cycle arrest in sub G0/G1, leading to apoptosis in an IL-10-dependent manner. This process occurred through MAPK phosphorylation and activation of both the intrinsic and extrinsic pathways. This study characterizes the molecular mechanisms underlying the regulation of CD9+ B cells to induce effector T cell apoptosis in mice and humans via IL-10 secretion. Defects in CD9+ B cells in blood from patients with severe asthma reveal new insights into the lack of regulation of inflammation in these patients.
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Affiliation(s)
- Carole Brosseau
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie, CHU Nantes, Nantes, France.,Institut du thorax, Inserm UMR 1087, CNRS UMR 6291, Université de Nantes, Nantes, France.,Institut du Thorax, CHU de Nantes, Nantes, France
| | - Maxim Durand
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie, CHU Nantes, Nantes, France.,Faculté de Médecine, Université de Nantes, Nantes, France
| | - Luc Colas
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie, CHU Nantes, Nantes, France.,Institut du Thorax, CHU de Nantes, Nantes, France.,Faculté de Médecine, Université de Nantes, Nantes, France
| | - Eugénie Durand
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie, CHU Nantes, Nantes, France
| | - Aurore Foureau
- Institut du thorax, Inserm UMR 1087, CNRS UMR 6291, Université de Nantes, Nantes, France.,Institut du Thorax, CHU de Nantes, Nantes, France
| | - Marie-Aude Cheminant
- Institut du thorax, Inserm UMR 1087, CNRS UMR 6291, Université de Nantes, Nantes, France
| | - Gregory Bouchaud
- Institut du thorax, Inserm UMR 1087, CNRS UMR 6291, Université de Nantes, Nantes, France.,INRA Centre Angers-Nantes, Nantes, France
| | - Laure Castan
- Institut du thorax, Inserm UMR 1087, CNRS UMR 6291, Université de Nantes, Nantes, France.,Faculté de Médecine, Université de Nantes, Nantes, France.,INRA Centre Angers-Nantes, Nantes, France
| | - Martin Klein
- Institut du thorax, Inserm UMR 1087, CNRS UMR 6291, Université de Nantes, Nantes, France.,Faculté de Médecine, Université de Nantes, Nantes, France
| | - Antoine Magnan
- Institut du thorax, Inserm UMR 1087, CNRS UMR 6291, Université de Nantes, Nantes, France.,Institut du Thorax, CHU de Nantes, Nantes, France
| | - Sophie Brouard
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie, CHU Nantes, Nantes, France.,Centre d'Investigation Clinique (CIC) Biothérapie, CHU Nantes, Nantes, France
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Su J, Wang K, Zhou X, Wang Y, Xu J, Tao L, Zeng X, Chen N, Bai X, Li X. B-cell-specific-peroxisome proliferator-activated receptor γ deficiency augments contact hypersensitivity with impaired regulatory B cells. Immunology 2018; 156:282-296. [PMID: 30471095 DOI: 10.1111/imm.13027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 11/08/2018] [Accepted: 11/13/2018] [Indexed: 12/13/2022] Open
Abstract
Nuclear receptor peroxisome proliferator-activated receptor γ (PPAR-γ) activation can prevent immunoinflammatory disorders and diabetes. B cells play protective roles during inflammation as well. However, the roles of endogenous PPAR-γ in the regulatory properties of B cells to relieve inflammation remain unknown. Here, we developed B-cell-specific PPAR-γ knockout (B-PPAR-γ-/- ) mice and found that the conditional deletion of PPAR-γ in B cells resulted in exaggerated contact hypersensitivity (CHS). Meanwhile, interferon-γ (IFN-γ) of CD4+ CD8+ T cells was up-regulated in B-PPAR-γ-/- mice in CHS. This showed that the regulatory function of B cells in B-PPAR-γ-/- mice declined in vivo. Whereas splenic CD5+ CD1dhi regulatory B-cell numbers and peripheral regulatory T-cell numbers were not changed in naive B-PPAR-γ-/- mice. Loss of PPAR-γ in B cells also did not affect either CD86 or FasL expression in splenic CD5+ CD1dhi regulatory B cells after activation. Notably, interleukin-10 (IL-10) production in CD5+ CD1dhi regulatory B cells reduced in B-PPAR-γ-deficient mice. In addition, functional IL-10-producing CD5+ CD1dhi regulatory B cells decreased in B-PPAR-γ-/- mice in the CHS model. These findings were in accordance with augmented CHS. The current work indicated the involvement of endogenous PPAR-γ in the regulatory function of B cells by disturbing the expansion of IL-10-positive regulatory B cells.
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Affiliation(s)
- Jianbing Su
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Keng Wang
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Xuan Zhou
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yiyuan Wang
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jialan Xu
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Lei Tao
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Xiangzhou Zeng
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Nana Chen
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Xiaochun Bai
- State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xiaojuan Li
- Laboratory of Anti-inflammatory and Immunomodulatory Pharmacology, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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Regulatory and Effector B Cells: A New Path Toward Biomarkers and Therapeutic Targets to Improve Transplant Outcomes? Clin Lab Med 2018; 39:15-29. [PMID: 30709503 DOI: 10.1016/j.cll.2018.10.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
B cells shape the alloimmune response through polarized subsets. These cells inhibit or promote immune responses by expressing suppressive or proinflammatory cytokines. Their summed activity dictates the influence of B cells on the alloimmune response. We review the evidence for regulatory B cells and effector B cells in mice and humans, discuss current limitations in their phenotypic identification, and discuss regulatory B cells as a signature for clinical renal allograft tolerance and predictive markers for allograft outcomes. We discuss the effects of therapeutic agents on regulatory B cells and potential approaches to augment their numbers as a therapeutic tool.
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131
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Li J, Luo Y, Wang X, Feng G. Regulatory B cells and advances in transplantation. J Leukoc Biol 2018; 105:657-668. [PMID: 30548970 DOI: 10.1002/jlb.5ru0518-199r] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 10/03/2018] [Accepted: 11/14/2018] [Indexed: 12/12/2022] Open
Abstract
The effects of B cell subsets with regulatory activity on the immune response to an allograft have evoked increasing interest. Here, we summarize the function and signaling of regulatory B cells (Bregs) and their potential effects on transplantation. These cells are able to suppress the immune system directly via ligand-receptor interactions and indirectly by secretion of immunosuppressive cytokines, particularly IL-10. In experimental animal models, the extensively studied IL-10-producing B cells have shown unique therapeutic advantages in the transplant field. In addition, adoptive transfer of B cell subsets with regulatory activity may reveal a new approach to prolonging allograft survival. Recent clinical observations on currently available therapies targeting B cells have revealed that Bregs play an important role in immune tolerance and that these cells are expected to become a new target of immunotherapy for transplant-related diseases.
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Affiliation(s)
- Jinfeng Li
- Kidney Transplantation Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yongsheng Luo
- Kidney Transplantation Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xu Wang
- Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Guiwen Feng
- Kidney Transplantation Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Ye L, Zhang Q, Cheng Y, Chen X, Wang G, Shi M, Zhang T, Cao Y, Pan H, Zhang L, Wang G, Deng Y, Yang Y, Chen G. Tumor-derived exosomal HMGB1 fosters hepatocellular carcinoma immune evasion by promoting TIM-1 + regulatory B cell expansion. J Immunother Cancer 2018; 6:145. [PMID: 30526680 PMCID: PMC6288912 DOI: 10.1186/s40425-018-0451-6] [Citation(s) in RCA: 182] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/16/2018] [Indexed: 12/26/2022] Open
Abstract
Background Regulatory B (Breg) cells represent one of the B cell subsets that infiltrate solid tumors and exhibit distinct phenotypes in different tumor microenvironments. However, the phenotype, function and clinical relevance of Breg cells in human hepatocellular carcinoma (HCC) are presently unknown. Methods Flow cytometry analyses were performed to determine the levels, phenotypes and functions of TIM-1+Breg cells in samples from 51 patients with HCC. Kaplan-Meier plots for overall survival and disease-free survival were generated using the log-rank test. TIM-1+Breg cells and CD8+ T cells were isolated, stimulated and/or cultured in vitro for functional assays. Exosomes and B cells were isolated and cultured in vitro for TIM-1+Breg cell expansion assays. Results Patients with HCC showed a significantly higher TIM-1+Breg cell infiltration in their tumor tissue compared with the paired peritumoral tissue. The infiltrating TIM-1+Breg cells showed a CD5highCD24−CD27−/+CD38+/high phenotype, expressed high levels of the immunosuppressive cytokine IL-10 and exhibited strong suppressive activity against CD8+ T cells. B cells activated by tumor-derived exosomes strongly expressed TIM-1 protein and were equipped with suppressive activity against CD8+ T cells similar to TIM-1+Breg cells isolated from HCC tumor tissue. Moreover, the accumulation of TIM-1+Breg cells in tumors was associated with advanced disease stage, predicted early recurrence in HCC and reduced HCC patient survival. Exosome-derived HMGB1 activated B cells and promoted TIM-1+Breg cell expansion via the Toll like receptor (TLR) 2/4 and mitogen-activated protein kinase (MAPK) signaling pathways. Conclusions Our results illuminate a novel mechanism of TIM-1+Breg cell-mediated immune escape in HCC and provide functional evidence for the use of these novel exosomal HMGB1-TLR2/4-MAPK pathways to prevent and to treat this immune tolerance feature of HCC. Electronic supplementary material The online version of this article (10.1186/s40425-018-0451-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Linsen Ye
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - Qi Zhang
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China.,Cell-gene Therapy Translational Medicine Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yusheng Cheng
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - Xiaolong Chen
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - Guoying Wang
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - Mengchen Shi
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Tong Zhang
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yingjiao Cao
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen university, Guangzhou, China
| | - Hang Pan
- Department of Pathology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Liting Zhang
- Cell-gene Therapy Translational Medicine Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Genshu Wang
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yinan Deng
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China.
| | - Yang Yang
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China.
| | - Guihua Chen
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China.
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Vonberg AD, Acevedo-Calado M, Cox AR, Pietropaolo SL, Gianani R, Lundy SK, Pietropaolo M. CD19+IgM+ cells demonstrate enhanced therapeutic efficacy in type 1 diabetes mellitus. JCI Insight 2018; 3:99860. [PMID: 30518692 DOI: 10.1172/jci.insight.99860] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 10/31/2018] [Indexed: 12/14/2022] Open
Abstract
We describe a protective effect on autoimmune diabetes and reduced destructive insulitis in NOD.scid recipients following splenocyte injections from diabetic NOD donors and sorted CD19+ cells compared with NOD.scid recipients receiving splenocytes alone. This protective effect was age specific (only CD19+ cells from young NOD donors exerted this effect; P < 0.001). We found that the CD19+IgM+ cell is the primary subpopulation of B cells that delayed transfer of diabetes mediated by diabetogenic T cells from NOD mice (P = 0.002). Removal of IgM+ cells from the CD19+ pool did not result in protection. Notably, protection conferred by CD19+IgM+ cotransfers were not dependent on the presence of Tregs, as their depletion did not affect their ability to delay onset of diabetes. Blockade of IL-10 with neutralizing antibodies at the time of CD19+ cell cotransfers also abrogated the therapeutic effect, suggesting that IL-10 secretion was an important component of protection. These results were strengthened by ex vivo incubation of CD19+ cells with IL-5, resulting in enhanced proliferation and IL-10 production and equivalently delayed diabetes progression (P = 0.0005). The potential to expand CD19+IgM+ cells, especially in response to IL-5 stimulation or by pharmacologic agents, may be a new therapeutic option for type 1 diabetes.
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Affiliation(s)
- Andrew D Vonberg
- Diabetes Research Center, Division of Diabetes, Endocrinology and Metabolism Department of Medicine, and
| | - Maria Acevedo-Calado
- Diabetes Research Center, Division of Diabetes, Endocrinology and Metabolism Department of Medicine, and
| | - Aaron R Cox
- Diabetes Research Center, Division of Diabetes, Endocrinology and Metabolism Department of Medicine, and.,Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Susan L Pietropaolo
- Diabetes Research Center, Division of Diabetes, Endocrinology and Metabolism Department of Medicine, and
| | - Roberto Gianani
- Diabetes Research Center, Division of Diabetes, Endocrinology and Metabolism Department of Medicine, and
| | - Steven K Lundy
- Division of Rheumatology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Massimo Pietropaolo
- Diabetes Research Center, Division of Diabetes, Endocrinology and Metabolism Department of Medicine, and
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134
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Sanjo N, Nose Y, Shishido-Hara Y, Mizutani S, Sekijima Y, Aizawa H, Tanizawa T, Yokota T. A controlled inflammation and a regulatory immune system are associated with more favorable prognosis of progressive multifocal leukoencephalopathy. J Neurol 2018; 266:369-377. [PMID: 30511098 DOI: 10.1007/s00415-018-9140-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/20/2018] [Accepted: 11/24/2018] [Indexed: 01/09/2023]
Abstract
OBJECTIVE In the present study, we analyzed the inflammatory profiles of brain tissues obtained from patients with progressive multifocal leukoencephalopathy (PML) due to John Cunningham (JC) virus infection to identify potential prognostic factors. METHODS The study included seven patients (two men, five women) who had been pathologically diagnosed with PML, and all of whom were HIV negative. Fixed brain samples were analyzed via hematoxylin and eosin (HE) staining and Klüver-Barrera (KB) staining. We then performed immunohistochemistry (IHC) specific to JC virus capsid proteins (VP1 and VP2/3) and lymphocyte surface markers (CD4, CD8, CD138, and PD-1). RESULTS The mean age at onset was 53.4, while the mean duration until biopsy/autopsy was 4.7 months. Four patients were included in the good prognosis (GP) group, while three were included in the poor prognosis (PP) group. Pathological analysis revealed a significantly larger number of CD4-positive T-cell infiltrations (P = .029) in the GP group, along with a preserved CD4:CD8 ratio. Larger numbers of CD138-positive plasma cells were also observed in the GP group (P = .029) than in the PP group. Linear regression analyses revealed a significant association between the numbers of CD138-positive plasma cells and PD-1-positive cells (R2 = 0.80). CONCLUSIONS Viral loads in the cerebrospinal fluid, a controlled inflammatory response mediated by CD4- and CD8-positive T cells, and plasma cells are associated with PML prognosis. Our findings further indicate that regulatory plasma cells may regulate inflammatory T-cell activity via a PD-1/PD-L1 immuno-checkpoint pathway, thereby protecting the uninfected brain from excessive immune-mediated damage during an active JC virus infection.
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Affiliation(s)
- Nobuo Sanjo
- Department of Neurology and Neurological Science, Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-8510, Japan.
| | - Yurie Nose
- Department of Neurology and Neurological Science, Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-8510, Japan
| | | | - Saneyuki Mizutani
- Department of Internal Medicine (Neurology), Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan
| | - Yoshiki Sekijima
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Nagano, Japan
| | - Hitoshi Aizawa
- Department of Neurology, Tokyo Medical University, Tokyo, Japan
| | - Toru Tanizawa
- Department of Pathology, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan
| | - Takanori Yokota
- Department of Neurology and Neurological Science, Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-8510, Japan
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135
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Mehdipour F, Razmkhah M, Rezaeifard S, Bagheri M, Talei AR, Khalatbari B, Ghaderi A. Mesenchymal stem cells induced anti-inflammatory features in B cells from breast tumor draining lymph nodes. Cell Biol Int 2018; 42:1658-1669. [DOI: 10.1002/cbin.11062] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Fereshteh Mehdipour
- Shiraz Institute for Cancer Research; School of Medicine, Shiraz University of Medical Sciences; P.O. Box: 71345-3119 Shiraz Iran
| | - Mahboobeh Razmkhah
- Shiraz Institute for Cancer Research; School of Medicine, Shiraz University of Medical Sciences; P.O. Box: 71345-3119 Shiraz Iran
| | - Somayeh Rezaeifard
- Shiraz Institute for Cancer Research; School of Medicine, Shiraz University of Medical Sciences; P.O. Box: 71345-3119 Shiraz Iran
| | - Mandana Bagheri
- Department of Pathology; Shiraz Central Hospital; Shiraz Iran
| | - Abdol-Rasoul Talei
- Breast Diseases Research Center; Shiraz University of Medical Sciences; Shiraz Iran
| | - Behzad Khalatbari
- Department of Plastic Surgery; Shiraz University of Medical Sciences; Shiraz Iran
| | - Abbas Ghaderi
- Shiraz Institute for Cancer Research; School of Medicine, Shiraz University of Medical Sciences; P.O. Box: 71345-3119 Shiraz Iran
- Department of Immunology, School of Medicine; Shiraz University of Medical Sciences; Shiraz Iran
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136
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Spielmann G, Agha N, Kunz H, Simpson RJ, Crucian B, Mehta S, Laughlin M, Campbell J. B cell homeostasis is maintained during long-duration spaceflight. J Appl Physiol (1985) 2018; 126:469-476. [PMID: 30496712 DOI: 10.1152/japplphysiol.00789.2018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Long-duration spaceflights reportedly induce immune dysregulation, which is considered a risk to astronaut safety and mission success. Recent studies have examined the impact of spaceflight on markers of adaptive and innate immunity, but no study, to date, has comprehensively evaluated humoral immunity and serological markers of B cell function. The aim of this study was to characterize changes in B cell numbers and phenotypes, along with plasma Igs and polyclonal free light chains (FLCs)-near-"real-time" biomarkers of Ig synthesis-in response to an ~6-mo mission to the International Space Station (ISS). Whole-blood samples were collected before flight, during flight ("Early flight," "Mid-flight," and "Late flight"), immediately upon return, and during a recovery period (R + 18, R + 30/R + 33, and R + 60/R + 66) from 23 ISS crew members. B Cell counts and phenotypes were measured throughout the duration of the mission, along with total plasma Ig and FLC levels. There was no effect of spaceflight on the number and proportion of the different B cell subsets. There was no difference in kappa FLC between preflight samples and either in-flight or recovery samples ( P > 0.05), and only a marginal reduction was observed in lambda FLC levels upon return to Earth ( P < 0.05). Furthermore, IgG and IgM remained unchanged during and after spaceflight compared with preflight values ( P > 0.05). Of note, plasma IgA concentrations were elevated in-flight compared with baseline and recovery values ( P < 0.05). These results indicate that B cell homeostasis is maintained during long-duration spaceflight, advocating for potential in-flight vaccination as viable countermeasures against viral reactivation during exploration-class missions.
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Affiliation(s)
| | - Nadia Agha
- Laboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston , Houston, Texas
| | - Hawley Kunz
- Laboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston , Houston, Texas.,Division of Endocrinology and Metabolism, Mayo Clinic, College of Medicine , Rochester, Minnesota
| | - Richard J Simpson
- Laboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston , Houston, Texas.,Department of Nutritional Sciences, The University of Arizona , Tucson, Arizona.,Department of Pediatrics, The University of Arizona , Tucson, Arizona.,Department of Immunobiology, The University of Arizona , Tucson, Arizona
| | - Brian Crucian
- National Aeronautics and Space Administration-Johnson Space Center , Houston, Texas
| | - Satish Mehta
- National Aeronautics and Space Administration-Johnson Space Center , Houston, Texas
| | - Mitzi Laughlin
- Laboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston , Houston, Texas.,Fondren Orthopedic Group, Fondren Orthopedic Research Institute , Houston, Texas
| | - John Campbell
- School of Kinesiology, Louisiana State University , Baton Rouge, Louisiana.,Department for Health, University of Bath , Bath , United Kingdom
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137
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Peñaloza HF, Alvarez D, Muñoz-Durango N, Schultz BM, González PA, Kalergis AM, Bueno SM. The role of myeloid-derived suppressor cells in chronic infectious diseases and the current methodology available for their study. J Leukoc Biol 2018; 105:857-872. [PMID: 30480847 DOI: 10.1002/jlb.mr0618-233r] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 10/07/2018] [Accepted: 10/30/2018] [Indexed: 12/23/2022] Open
Abstract
An effective pathogen has the ability to evade the immune response. The strategies used to achieve this may be based on the direct action of virulence factors or on the induction of host factors. Myeloid-derived suppressor cells (MDSCs) are immune cells with an incredible ability to suppress the inflammatory response, which makes them excellent targets to be exploited by pathogenic bacteria, viruses, or parasites. In this review, we describe the origin and suppressive mechanisms of MDSCs, as well as their role in chronic bacterial, viral, and parasitic infections, where their expansion seems to be essential in the chronicity of the disease. We also analyze the disadvantages of current MDSC depletion strategies and the different in vitro generation methods, which can be useful tools for the deeper study of these cells in the context of microbial infections.
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Affiliation(s)
- Hernán F Peñaloza
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Diana Alvarez
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Natalia Muñoz-Durango
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Bárbara M Schultz
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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138
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Nanoparticle Delivery of RIG-I Agonist Enables Effective and Safe Adjuvant Therapy in Pancreatic Cancer. Mol Ther 2018; 27:507-517. [PMID: 30545600 DOI: 10.1016/j.ymthe.2018.11.012] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 11/09/2018] [Accepted: 11/11/2018] [Indexed: 01/14/2023] Open
Abstract
Local immunomodulation can be a promising strategy to augment the efficacy and decrease off-target toxicities associated with cancer treatment. Pancreatic cancer is resistant to immunotherapies due to the immunosuppressive tumor microenvironment. Herein, we investigated a therapeutic approach involving delivery of a short interfering double-stranded RNA (dsRNA), specific to Bcl2, with 5' triphosphate ends, by lipid calcium phosphate nanoparticles, in an orthotopic allograft KPC model of pancreatic cancer. Retinoic acid-inducible gene I (RIG-I)-like receptors can bind to 5' triphosphate dsRNA (ppp dsRNA), a pathogen-associated molecular pattern, producing type I interferon, while Bcl2 silencing can drive apoptosis of cancer cells. Our approach demonstrated a robust enrichment of tumor tissue with therapeutic nanoparticles and enabled a significant tumor growth inhibition, prolonging median overall survival. Nanoparticles encapsulating dual-therapeutic ppp dsRNA allowed strong induction in levels of pro-inflammatory Th1 cytokines, further increasing proportions of CD8+ T cells over regulatory T cells, M1 over M2 macrophages, and decreased levels of immunosuppressive B regulatory and plasma cells in the tumor microenvironment. Thus, these results provide a new immunotherapy approach for pancreatic cancer.
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139
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Wąsik M, Nazimek K, Bryniarski K. Regulatory B cell phenotype and mechanism of action: the impact of stimulating conditions. Microbiol Immunol 2018; 62:485-496. [PMID: 29998521 DOI: 10.1111/1348-0421.12636] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/29/2018] [Accepted: 07/09/2018] [Indexed: 12/14/2022]
Abstract
A diverse population of regulatory B (Breg) cells reportedly exhibits significant immunomodulatory effects in various models of inflammatory responses and infectious diseases caused by bacteria, viruses or parasites. Breg cells contribute to maintenance of homeostasis via IL-10 production and multiple IL-10-independent mechanisms. The current review describes various phenotypic and functional subsets of Breg cells in autoimmune and infectious diseases and discusses the impacts of experimental conditions that have been found to drive Breg cell differentiation.
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Affiliation(s)
- Magdalena Wąsik
- Department of Immunology, Jagiellonian University College of Medicine, 18 Czysta St., 31-121 Krakow, Poland
| | - Katarzyna Nazimek
- Department of Immunology, Jagiellonian University College of Medicine, 18 Czysta St., 31-121 Krakow, Poland
| | - Krzysztof Bryniarski
- Department of Immunology, Jagiellonian University College of Medicine, 18 Czysta St., 31-121 Krakow, Poland
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140
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Bidirectional effects of IL-10 + regulatory B cells in Ldlr -/- mice. Atherosclerosis 2018; 280:118-125. [PMID: 30500604 DOI: 10.1016/j.atherosclerosis.2018.11.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/01/2018] [Accepted: 11/08/2018] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND AIMS Limiting the pro-inflammatory immune response is critical for the treatment of atherosclerosis. Regulatory B cells (Bregs) can modulate the immune response through interleukin-10 (IL-10). Current data regarding Bregs and atherosclerosis is scarce and conflicting. METHODS In this study, we investigated the frequency of IL-10+ B cells during the development of atherosclerosis in low-density lipoprotein receptor-deficient (Ldlr-/-) mice and studied the effect of adoptive transfer of IL-10+ B cells on atherosclerosis. RESULTS We found a very strong inverse correlation between atherosclerosis severity and the frequency of IL-10+ B cells. This effect was cholesterol-independent and observed in spleen, draining lymph nodes and peritoneal cavity. To directly assess the effects of IL-10+ B cells on atherosclerosis, we expanded IL-10+ B cells ex vivo with anti-CD40 and selected pure and viable IL-10-secreting B cells and IL-10- B cells and adoptively transferred them to Ldlr-/- mice, respectively. While IL-10- B cells were strongly atherogenic compared to control-treated mice, IL-10+ B cells did not affect lesion size. Adoptive transfer of IL-10+ B cells strongly reduced circulating leukocyte numbers and inflammatory monocytes. In addition, they decreased CD4+ T cell activation and increased IL-10+ CD4+ T cell numbers. Interestingly, both IL-10+ and IL-10- B cells exacerbated serum cholesterol levels and resulted in fatty livers, which potentially masked the beneficial effects of IL-10+ B cells on atherosclerosis. CONCLUSIONS These findings underscore the strong immune-regulating function of IL-10+ B cells and provide additional incentives to explore effective strategies that expand IL-10+ B cells in atherosclerosis.
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141
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Mirzakhani M, Shahbazi M, Oliaei F, Mohammadnia-Afrouzi M. Immunological biomarkers of tolerance in human kidney transplantation: An updated literature review. J Cell Physiol 2018; 234:5762-5774. [PMID: 30362556 DOI: 10.1002/jcp.27480] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/06/2018] [Indexed: 12/11/2022]
Abstract
The half-life of transplanted kidneys is <10 years. Acute or chronic rejections have a negative impact on transplant outcome. Therefore, achieving to allograft tolerance for improving long-term transplant outcome is a desirable goal of transplantation field. In contrast, there are evidence that distinct immunological characteristics lead to tolerance in some transplant recipients. In contrast, the main reason for allograft loss is immunological responses. Various immune cells including T cells, B cells, dendritic cells, macrophages, natural killer, and myeloid-derived suppressor cells damage graft tissue and, thereby, graft loss happens. Therefore, being armed with the comprehensive knowledge about either preimmunological or postimmunological characteristics of renal transplant patients may help us to achieve an operational tolerance. In the present study, we are going to review and discuss immunological characteristics of renal transplant recipients with rejection and compare them with tolerant subjects.
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Affiliation(s)
- Mohammad Mirzakhani
- Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran.,Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Immunology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Mehdi Shahbazi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Immunoregulation Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Immunology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Farshid Oliaei
- Kidney Transplantation Center, Shahid Beheshti Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Mousa Mohammadnia-Afrouzi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Immunoregulation Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Immunology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
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142
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Negron A, Robinson RR, Stüve O, Forsthuber TG. The role of B cells in multiple sclerosis: Current and future therapies. Cell Immunol 2018; 339:10-23. [PMID: 31130183 DOI: 10.1016/j.cellimm.2018.10.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/19/2018] [Accepted: 10/20/2018] [Indexed: 02/07/2023]
Abstract
While it was long held that T cells were the primary mediators of multiple sclerosis (MS) pathogenesis, the beneficial effects observed in response to treatment with Rituximab (RTX), a monoclonal antibody (mAb) targeting CD20, shed light on a key contributor to MS that had been previously underappreciated: B cells. This has been reaffirmed by results from clinical trials testing the efficacy of subsequently developed B cell-depleting mAbs targeting CD20 as well as studies revisiting the effects of previous disease-modifying therapies (DMTs) on B cell subsets thought to modulate disease severity. In this review, we summarize current knowledge regarding the complex roles of B cells in MS pathogenesis and current and potential future B cell-directed therapies.
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Affiliation(s)
- Austin Negron
- Department of Biology, University of Texas at San Antonio, TX 78249, USA
| | - Rachel R Robinson
- Department of Biology, University of Texas at San Antonio, TX 78249, USA
| | - Olaf Stüve
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX, USA; Neurology Section, VA North Texas Health Care System, Medical Service, Dallas, TX, USA
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143
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Sakkas LI, Daoussis D, Mavropoulos A, Liossis SN, Bogdanos DP. Regulatory B cells: New players in inflammatory and autoimmune rheumatic diseases. Semin Arthritis Rheum 2018; 48:1133-1141. [PMID: 30409417 DOI: 10.1016/j.semarthrit.2018.10.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/06/2018] [Accepted: 10/09/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Regulatory B cells (Bregs) are a new subset of B cells with immunoregulatory functions, mainly through IL-10 production. Bregs suppress inflammatory Th1 and Th17 differentiation and induce Tregs suppressing autoimmune diseases. The aim of the study was to review the literature related to Bregs in autoimmune rheumatic diseases (ARDs). METHODS A literature review of publications in PUBMED published in English was performed using the relevant combinations of terms. RESULTS All relevant publications are discussed. Overall, recent studies in rheumatic diseases found Bregs to be decreased in ANCA-associated vasculitides (AAV) and in systemic sclerosis (SSc), particularly in SSc-associated lung fibrosis. In AAV Bregs levels are negatively correlated with autoantibody levels whereas in SSc this association is less clear but there is an inverse association with Th1 and Th17 cells. In rheumatoid arthritis (RA), Bregs were decreased, particularly in RA-associated lung fibrosis. In psoriatic arthritis IL-10 + Bregs are decreased and inversely associated with Th1 and Th17 cells. In systemic lupus erythematosus (SLE), the role of Bregs is unclear. In experimental diseases, when Bregs were expanded ex-vivo, they ameliorated established disease. CONCLUSION Bregs appear to be a new player in the pathogenesis of ARDs, and may offer a new strategy for therapeutic intervention.
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Affiliation(s)
- Lazaros I Sakkas
- Department of Rheumatology and clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa 41 110, Greece.
| | - Dimitrios Daoussis
- Division of Rheumatology, Department of Internal Medicine, University of Patras, Rio, Patras, Greece
| | - Athanasios Mavropoulos
- Department of Rheumatology and clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa 41 110, Greece
| | - Stamatis-Nick Liossis
- Division of Rheumatology, Department of Internal Medicine, University of Patras, Rio, Patras, Greece
| | - Dimitrios P Bogdanos
- Department of Rheumatology and clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa 41 110, Greece
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144
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Brosseau C, Colas L, Magnan A, Brouard S. CD9 Tetraspanin: A New Pathway for the Regulation of Inflammation? Front Immunol 2018; 9:2316. [PMID: 30356731 PMCID: PMC6189363 DOI: 10.3389/fimmu.2018.02316] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Accepted: 09/18/2018] [Indexed: 12/21/2022] Open
Abstract
CD9 belongs to the tetraspanin superfamily. Depending on the cell type and associated molecules, CD9 has a wide variety of biological activities such as cell adhesion, motility, metastasis, growth, signal transduction, differentiation, and sperm-egg fusion. This review focuses on CD9 expression by hematopoietic cells and its role in modulating cellular processes involved in the regulation of inflammation. CD9 is functionally very important in many diseases and is involved either in the regulation or in the mediation of the disease. The role of CD9 in various diseases, such as viral and bacterial infections, cancer and chronic lung allograft dysfunction, is discussed. This review focuses also on its interest as a biomarker in diseases. Indeed CD9 is primarily known as a specific exosome marker however, its expression is now recognized as an anti-inflammatory marker of monocytes and macrophages. It was also described as a marker of murine IL-10-competent Breg cells and IL-10-secreting CD9+ B cells were associated with better allograft outcome in lung transplant patients, and identified as a new predictive biomarker of long-term survival. In the field of cancer, CD9 was both identified as a favorable prognostic marker or as a predictor of metastatic potential depending on cancer types. Finally, this review discusses strategies to target CD9 as a therapeutic tool. Because CD9 can have opposite effects depending on the situation, the environment and the pathology, modulating CD9 expression or blocking its effects seem to be a new promising therapeutic strategy.
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Affiliation(s)
- Carole Brosseau
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie, CHU Nantes, Nantes, France
| | - Luc Colas
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut du Thorax, Plateforme Transversale d'Allergologie, CHU de Nantes, Nantes, France
| | - Antoine Magnan
- Institut du Thorax, Plateforme Transversale d'Allergologie, CHU de Nantes, Nantes, France.,Institut du thorax, Inserm UMR 1087, CNRS UMR 6291, Université de Nantes, Nantes, France
| | - Sophie Brouard
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie, CHU Nantes, Nantes, France
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145
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Appelgren D, Eriksson P, Ernerudh J, Segelmark M. Marginal-Zone B-Cells Are Main Producers of IgM in Humans, and Are Reduced in Patients With Autoimmune Vasculitis. Front Immunol 2018; 9:2242. [PMID: 30356862 PMCID: PMC6190848 DOI: 10.3389/fimmu.2018.02242] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/10/2018] [Indexed: 12/12/2022] Open
Abstract
In mice, B1 and marginal zone (MZ) B-cells play an important role in prevention of autoimmunity through production of regulatory cytokines and natural antibodies. There is limited knowledge about the human counterparts of these cells. We therefore investigated functions of MZ-like B-cells and the frequency of circulating MZ-like and B1-like B-cells in healthy controls (HC), as well as in patients with autoimmune vasculitis to learn more about the role of these cells in autoimmune disease. After stimulation with CpG oligodeoxynucleotides (ODN) of class B in vitro, MZ-like B-cells were the main producers of IgM whereas switched memory B-cells primarily produced IgG and IgA. TNF and IL-10 were produced by both MZ-like and switched memory B-cells. Neither antibody nor TNF/IL-10 production by the B-cell subsets differed between patients and HC. Patients with autoimmune vasculitis, irrespective of disease activity, had lower percentage and absolute numbers of circulating MZ-like B-cells, and lower absolute numbers of B1-like B-cells. The percentage of B1-like B-cells was reduced during active disease. These findings remained significant when the analysis was confined to active treatment-naïve patients (disease onset).Our results suggest that human innate-like B-cells might have a physiological role in prevention of autoimmunity.
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Affiliation(s)
- Daniel Appelgren
- Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Per Eriksson
- Department of Rheumatology, Linköping University, Linköping, Sweden.,Department of Clinical Immunology and Transfusion Medicine, and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Jan Ernerudh
- Department of Clinical Immunology and Transfusion Medicine, and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Mårten Segelmark
- Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.,Department of Nephrology, Linköping University, Linköping, Sweden.,Department of Clinical Sciences in Lund, Nephrology, Lund University and Skåne University Hospital, Lund, Sweden
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146
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Miani M, Le Naour J, Waeckel-Enée E, Verma SC, Straube M, Emond P, Ryffel B, van Endert P, Sokol H, Diana J. Gut Microbiota-Stimulated Innate Lymphoid Cells Support β-Defensin 14 Expression in Pancreatic Endocrine Cells, Preventing Autoimmune Diabetes. Cell Metab 2018; 28:557-572.e6. [PMID: 30017352 DOI: 10.1016/j.cmet.2018.06.012] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 04/19/2018] [Accepted: 06/15/2018] [Indexed: 12/27/2022]
Abstract
The gut microbiota is essential for the normal function of the gut immune system, and microbiota alterations are associated with autoimmune disorders. However, how the gut microbiota prevents autoimmunity in distant organs remains poorly defined. Here we reveal that gut microbiota conditioned innate lymphoid cells (ILCs) induce the expression of mouse β-defensin 14 (mBD14) by pancreatic endocrine cells, preventing autoimmune diabetes in the non-obese diabetic (NOD) mice. MBD14 stimulates, via Toll-like receptor 2, interleukin-4 (IL-4)-secreting B cells that induce regulatory macrophages, which in turn induce protective regulatory T cells. The gut microbiota-derived molecules, aryl hydrocarbon receptor (AHR) ligands and butyrate, promote IL-22 secretion by pancreatic ILCs, which induce expression of mBD14 by endocrine cells. Dysbiotic microbiota and low-affinity AHR allele explain the defective pancreatic expression of mBD14 observed in NOD mice. Our study reveals a yet unidentified crosstalk between ILCs and endocrine cells in the pancreas that is essential for the prevention of autoimmune diabetes development.
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Affiliation(s)
- Michela Miani
- Institut Necker-Enfants Malades (INEM), Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Sorbonne Universités, Paris, France
| | - Julie Le Naour
- Institut Necker-Enfants Malades (INEM), Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Sorbonne Universités, Paris, France
| | - Emmanuelle Waeckel-Enée
- Institut Necker-Enfants Malades (INEM), Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Sorbonne Universités, Paris, France
| | - Subash Chand Verma
- Institut Necker-Enfants Malades (INEM), Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Sorbonne Universités, Paris, France
| | - Marjolène Straube
- Sorbonne Universités, École Normale Supérieure, CNRS, INSERM, Assistance Publique Hopitaux de Paris (APHP) Laboratoire des Biomolécules (LBM), Paris, France
| | - Patrick Emond
- UMR 1253, iBrain, Université de Tours, INSERM, Tours, France; CHRU de Tours, Service de Médecine Nucléaire In Vitro, Tours, France
| | - Bernhard Ryffel
- Laboratory of Experimental and Molecular Immunology and Neurogenetics, UMR 7355 CNRS-University of Orleans, 3B, Orleans, France; IDM, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Peter van Endert
- Institut Necker-Enfants Malades (INEM), Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Sorbonne Universités, Paris, France
| | - Harry Sokol
- Sorbonne Universités, École Normale Supérieure, CNRS, INSERM, Assistance Publique Hopitaux de Paris (APHP) Laboratoire des Biomolécules (LBM), Paris, France; Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France; Department of Gastroenterology, Saint Antoine Hospital, APHP, Paris, France
| | - Julien Diana
- Institut Necker-Enfants Malades (INEM), Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Sorbonne Universités, Paris, France.
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147
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Kazi ZB, Desai AK, Troxler RB, Kronn D, Packman S, Sabbadini M, Rizzo WB, Scherer K, Abdul-Rahman O, Tanpaiboon P, Nampoothiri S, Gupta N, Feigenbaum A, Niyazov DM, Sherry L, Segel R, McVie-Wylie A, Sung C, Joseph AM, Richards S, Kishnani PS. An immune tolerance approach using transient low-dose methotrexate in the ERT-naïve setting of patients treated with a therapeutic protein: experience in infantile-onset Pompe disease. Genet Med 2018; 21:887-895. [PMID: 30214072 PMCID: PMC6417984 DOI: 10.1038/s41436-018-0270-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 08/03/2018] [Indexed: 12/19/2022] Open
Abstract
PURPOSE To investigate immune tolerance induction with transient low-dose methotrexate (TLD-MTX) initiated with recombinant human acid α-glucosidase (rhGAA), in treatment-naïve cross-reactive immunologic material (CRIM)-positive infantile-onset Pompe disease (IOPD) patients. METHODS Newly diagnosed IOPD patients received subcutaneous or oral 0.4 mg/kg TLD-MTX for 3 cycles (3 doses/cycle) with the first 3 rhGAA infusions. Anti-rhGAA IgG titers, classified as high-sustained (HSAT; ≥51,200, ≥2 times after 6 months), sustained intermediate (SIT; ≥12,800 and <51,200 within 12 months), or low (LT; ≤6400 within 12 months), were compared with those of 37 CRIM-positive IOPD historic comparators receiving rhGAA alone. RESULTS Fourteen IOPD TLD-MTX recipients at the median age of 3.8 months (range, 0.7-13.5 months) had a median last titer of 150 (range, 0-51,200) at median rhGAA duration ~83 weeks (range, 36-122 weeks). One IOPD patient (7.1%) developed titers in the SIT range and one patient (7.1%) developed titers in the HSAT range. Twelve of the 14 patients (85.7%) that received TLD-MTX remained LT, versus 5/37 HSAT (peak 51,200-409,600), 7/37 SIT (12,800-51,000), and 23/37 LT (200-12,800) among comparators. CONCLUSION Results of TLD-MTX coinitiated with rhGAA are encouraging and merit a larger longitudinal study.
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Affiliation(s)
- Zoheb B Kazi
- Division of Medical Genetics, Department of Pediatrics, Duke University Health System, Durham, NC, USA
| | - Ankit K Desai
- Division of Medical Genetics, Department of Pediatrics, Duke University Health System, Durham, NC, USA
| | - R Bradley Troxler
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - David Kronn
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Seymour Packman
- Division of Medical Genetics, Department of Pediatrics, University of California, San Francisco, CA, USA
| | - Marta Sabbadini
- Division of Medical Genetics, Department of Pediatrics, University of California, San Francisco, CA, USA
| | - William B Rizzo
- Department of Pediatrics, University of Nebraska Medical Center, Nebraska Medical Center Omaha, Omaha, NE, USA
| | - Katalin Scherer
- Department of Neurology, University of Arizona, Tucson, AZ, USA
| | - Omar Abdul-Rahman
- Munroe-Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center, Omaha, NE, USA
| | - Pranoot Tanpaiboon
- Quest Diagnostics and Children's National Health System, Washington, DC, USA
| | - Sheela Nampoothiri
- Amrita Institute of Medical Sciences & Research Centre, Kochi, Kerala, India
| | - Neerja Gupta
- All India Institute of Medical Sciences, New Delhi, India
| | | | - Dmitriy M Niyazov
- Department of Pediatrics, Ochsner Health System, New Orleans, LA, USA
| | - Langston Sherry
- Department of Pediatrics, Ochsner Health System, New Orleans, LA, USA
| | - Reeval Segel
- Medical Genetics Institute, Shaare Zedek Medical Center and the Hebrew University School of Medicine, Jerusalem, Israel
| | | | | | | | | | - Priya S Kishnani
- Division of Medical Genetics, Department of Pediatrics, Duke University Health System, Durham, NC, USA.
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148
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Taitano SH, van der Vlugt LEPM, Shea MM, Yang J, Lukacs NW, Lundy SK. Differential Influence on Regulatory B Cells by T H2 Cytokines Affects Protection in Allergic Airway Disease. THE JOURNAL OF IMMUNOLOGY 2018; 201:1865-1874. [PMID: 30127086 DOI: 10.4049/jimmunol.1800206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 07/23/2018] [Indexed: 11/19/2022]
Abstract
The role of regulatory B cells (Bregs) in modulating immune responses and maintaining tolerance are well established. However, how cytokines present during immune responses affect Breg growth and function are not as well defined. Previously, our laboratory reported IL-5- and mCD40L-expressing fibroblast (mCD40L-Fb) stimulation induced IL-10 production from murine B cells. The current study investigated the phenotype and functional relevance of IL-10- producing B cells from this culture. We found IL-5/mCD40L-Fb stimulation induced IL-10 production exclusively from CD5+ splenic B cells of naive mice. After stimulation, the resulting IL-10+ B cells displayed markers of multiple reported Breg phenotypes. Interestingly, when investigating effects of IL-4 (a critical TH2 cytokine) on IL-5/mCD40L-Fb-induced IL-10 production, we found IL-4 inhibited IL-10 production in a STAT6-dependent manner. Upon adoptive transfer, CD5+ B cells previously stimulated with IL-5/mCD40L-Fb were able to reduce development of OVA-induced allergic airway disease in mice. Using B cells from IL-10 mutant mice differentiated by IL-5/mCD40L-Fb, we found protection from allergic airway disease development was dependent on the IL-10 production from the transferred B cells. Bregs have been shown to play crucial roles in the immune tolerance network, and understanding stimuli that modulate their growth and function may be key in development of future treatments for diseases of immune dysregulation.
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Affiliation(s)
- Sophina H Taitano
- Division of Rheumatology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109.,Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI 48109; and
| | - Luciën E P M van der Vlugt
- Division of Rheumatology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109
| | - Molly M Shea
- Division of Rheumatology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109
| | - Jennifer Yang
- Division of Rheumatology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109
| | - Nicholas W Lukacs
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI 48109; and.,Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109
| | - Steven K Lundy
- Division of Rheumatology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109; .,Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI 48109; and
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149
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Powell WE, Hanna SJ, Hocter CN, Robinson E, Davies J, Dunseath GJ, Luzio S, Farewell D, Wen L, Dayan CM, Price DA, Ladell K, Wong FS. Loss of CXCR3 expression on memory B cells in individuals with long-standing type 1 diabetes. Diabetologia 2018; 61:1794-1803. [PMID: 29881878 PMCID: PMC6061155 DOI: 10.1007/s00125-018-4651-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Accepted: 04/27/2018] [Indexed: 02/07/2023]
Abstract
AIMS/HYPOTHESIS Islet-specific autoantibodies can predict the development of type 1 diabetes. However, it remains unclear if B cells, per se, contribute to the causal pancreatic immunopathology. We aimed to identify phenotypic signatures of disease progression among naive and memory B cell subsets in the peripheral blood of individuals with type 1 diabetes. METHODS A total of 69 participants were recruited across two separate cohorts, one for discovery purposes and the other for validation purposes. Each cohort comprised two groups of individuals with type 1 diabetes (one with newly diagnosed type 1 diabetes and the other with long-standing type 1 diabetes) and one group of age- and sex-matched healthy donors. The phenotypic characteristics of circulating naive and memory B cells were investigated using polychromatic flow cytometry, and serum concentrations of various chemokines and cytokines were measured using immunoassays. RESULTS A disease-linked phenotype was detected in individuals with long-standing type 1 diabetes, characterised by reduced C-X-C motif chemokine receptor 3 (CXCR3) expression on switched (CD27+IgD-) and unswitched (CD27intermediateIgD+) memory B cells. These changes were associated with raised serum concentrations of B cell activating factor and of the CXCR3 ligands, chemokine (C-X-C motif) ligand (CXCL)10 and CXCL11. A concomitant reduction in CXCR3 expression was also identified on T cells. CONCLUSIONS/INTERPRETATION Our data reveal a statistically robust set of abnormalities that indicate an association between type 1 diabetes and long-term dysregulation of a chemokine ligand/receptor system that controls B cell migration.
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Affiliation(s)
- Wendy E Powell
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - Stephanie J Hanna
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - Claire N Hocter
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - Emma Robinson
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - Joanne Davies
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | | | - Stephen Luzio
- Diabetes Research Unit Cymru, Swansea University, Swansea, UK
| | - Daniel Farewell
- Division of Population Medicine, Cardiff University School of Medicine, Cardiff, UK
| | - Li Wen
- Section of Endocrinology, Yale University School of Medicine, New Haven, CT, USA
| | - Colin M Dayan
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - David A Price
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - Kristin Ladell
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - F Susan Wong
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK.
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150
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Ezekian B, Schroder PM, Freischlag K, Yoon J, Kwun J, Knechtle SJ. Contemporary Strategies and Barriers to Transplantation Tolerance. Transplantation 2018; 102:1213-1222. [PMID: 29757903 PMCID: PMC6059978 DOI: 10.1097/tp.0000000000002242] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 12/30/2022]
Abstract
The purpose of this review is to discuss immunologic tolerance as it applies to solid organ transplantation and to identify barriers that hinder the achievement of this long-term goal. First, the definition of tolerance and an introduction of mechanisms by which tolerance exists or can be achieved will be discussed. Next, a review of contemporary attempts at achieving transplant tolerance will be described. Finally, a discussion of the humoral barriers to transplantation tolerance and potential ways to overcome these barriers will be presented.
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Affiliation(s)
- Brian Ezekian
- Duke Transplant Center, Department of Surgery, Duke University Medical Center, Durham, NC
| | - Paul M. Schroder
- Duke Transplant Center, Department of Surgery, Duke University Medical Center, Durham, NC
| | - Kyle Freischlag
- Duke Transplant Center, Department of Surgery, Duke University Medical Center, Durham, NC
| | - Janghoon Yoon
- Duke Transplant Center, Department of Surgery, Duke University Medical Center, Durham, NC
| | - Jean Kwun
- Duke Transplant Center, Department of Surgery, Duke University Medical Center, Durham, NC
| | - Stuart J. Knechtle
- Duke Transplant Center, Department of Surgery, Duke University Medical Center, Durham, NC
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