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Gonçalves IV, Pinheiro-Rosa N, Torres L, Oliveira MDA, Rapozo Guimarães G, Leite CDS, Ortega JM, Lopes MTP, Faria AMC, Martins MLB, Felicori LF. Dynamic changes in B cell subpopulations in response to triple-negative breast cancer development. Sci Rep 2024; 14:11576. [PMID: 38773133 PMCID: PMC11109097 DOI: 10.1038/s41598-024-60243-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 04/19/2024] [Indexed: 05/23/2024] Open
Abstract
Despite presenting a worse prognosis and being associated with highly aggressive tumors, triple-negative breast cancer (TNBC) is characterized by the higher frequency of tumor-infiltrating lymphocytes, which have been implicated in better overall survival and response to therapy. Though recent studies have reported the capacity of B lymphocytes to recognize overly-expressed normal proteins, and tumor-associated antigens, how tumor development potentially modifies B cell response is yet to be elucidated. Our findings reveal distinct effects of 4T1 and E0771 murine tumor development on B cells in secondary lymphoid organs. Notably, we observe a significant expansion of total B cells and plasma cells in the tumor-draining lymph nodes (tDLNs) as early as 7 days after tumor challenge in both murine models, whereas changes in the spleen are less pronounced. Surprisingly, within the tumor microenvironment (TME) of both models, we detect distinct B cell subpopulations, but tumor development does not appear to cause major alterations in their frequency over time. Furthermore, our investigation into B cell regulatory phenotypes highlights that the B10 Breg phenotype remains unaffected in the evaluated tissues. Most importantly, we identified an increase in CD19 + LAG-3 + cells in tDLNs of both murine models. Interestingly, although CD19 + LAG-3 + cells represent a minor subset of total B cells (< 3%) in all evaluated tissues, most of these cells exhibit elevated expression of IgD, suggesting that LAG-3 may serve as an activation marker for B cells. Corroborating with these findings, we detected distinct cell cycle and proliferation genes alongside LAG-3 analyzing scRNA-Seq data from a cohort of TNBC patients. More importantly, our study suggests that the presence of LAG-3 B cells in breast tumors could be associated with a good prognosis, as patients with higher levels of LAG-3 B cell transcripts had a longer progression-free interval (PFI). This novel insight could pave the way for targeted therapies that harness the unique properties of LAG-3 + B cells, potentially offering new avenues for improving patient outcomes in TNBC. Further research is warranted to unravel the mechanistic pathways of these cells and to validate their prognostic value in larger, diverse patient cohorts.
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Affiliation(s)
- Igor Visconte Gonçalves
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Natália Pinheiro-Rosa
- NYU Grossman School of Medicine, NYU Langone Health, New York University, 550 1st Ave, New York, NY, 10016, USA
| | - Lícia Torres
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Mariana de Almeida Oliveira
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Gabriela Rapozo Guimarães
- Instituto Nacional de Câncer, Ministério da Saúde, Coordenação de Pesquisa, Laboratório de Bioinformática e Biologia Computacional - Rua André Cavalcanti, 37, 1 Andar, Centro, Rio de Janeiro, RJ, 20231050, Brasil
| | - Christiana da Silva Leite
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - José Miguel Ortega
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Miriam Teresa Paz Lopes
- Department of Pharmacology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Ana Maria Caetano Faria
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Mariana Lima Boroni Martins
- Instituto Nacional de Câncer, Ministério da Saúde, Coordenação de Pesquisa, Laboratório de Bioinformática e Biologia Computacional - Rua André Cavalcanti, 37, 1 Andar, Centro, Rio de Janeiro, RJ, 20231050, Brasil
| | - Liza Figueiredo Felicori
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil.
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Wang P, Yang X, Zhang L, Sha S, Huang J, Peng J, Gu J, Pearson JA, Hu Y, Zhao H, Wong FS, Wang Q, Wen L. Tlr9 deficiency in B cells leads to obesity by promoting inflammation and gut dysbiosis. Nat Commun 2024; 15:4232. [PMID: 38762479 PMCID: PMC11102548 DOI: 10.1038/s41467-024-48611-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 05/02/2024] [Indexed: 05/20/2024] Open
Abstract
Toll-like receptor 9 (TLR9) recognizes bacterial, viral and self DNA and play an important role in immunity and inflammation. However, the role of TLR9 in obesity is less well-studied. Here, we generate B-cell-specific Tlr9-deficient (Tlr9fl/fl/Cd19Cre+/-, KO) B6 mice and model obesity using a high-fat diet. Compared with control mice, B-cell-specific-Tlr9-deficient mice exhibited increased fat tissue inflammation, weight gain, and impaired glucose and insulin tolerance. Furthermore, the frequencies of IL-10-producing-B cells and marginal zone B cells were reduced, and those of follicular and germinal center B cells were increased. This was associated with increased frequencies of IFNγ-producing-T cells and increased follicular helper cells. In addition, gut microbiota from the KO mice induced a pro-inflammatory state leading to immunological and metabolic dysregulation when transferred to germ-free mice. Using 16 S rRNA gene sequencing, we identify altered gut microbial communities including reduced Lachnospiraceae, which may play a role in altered metabolism in KO mice. We identify an important network involving Tlr9, Irf4 and Il-10 interconnecting metabolic homeostasis, with the function of B and T cells, and gut microbiota in obesity.
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Affiliation(s)
- Pai Wang
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin, China
- Section of Endocrinology, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA
| | - Xin Yang
- Section of Endocrinology, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Luyao Zhang
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin, China
- Section of Endocrinology, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA
| | - Sha Sha
- Section of Endocrinology, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Juan Huang
- Section of Endocrinology, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA
| | - Jian Peng
- Section of Endocrinology, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA
| | - Jianlei Gu
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - James Alexander Pearson
- Section of Endocrinology, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA
- Division of Infection and Immunity, School of Medicine and Systems Immunity University Research Institute, Cardiff University, Cardiff, UK
| | - Youjia Hu
- Section of Endocrinology, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA
| | - Hongyu Zhao
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - F Susan Wong
- Division of Infection and Immunity, School of Medicine and Systems Immunity University Research Institute, Cardiff University, Cardiff, UK
| | - Quan Wang
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin, China.
| | - Li Wen
- Section of Endocrinology, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA.
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Enriquez J, McDaniel Mims B, Stroever S, dos Santos AP, Jones-Hall Y, Furr KL, Grisham MB. Influence of Housing Temperature and Genetic Diversity on Allogeneic T Cell-Induced Tissue Damage in Mice. PATHOPHYSIOLOGY 2023; 30:522-547. [PMID: 37987308 PMCID: PMC10661280 DOI: 10.3390/pathophysiology30040039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/12/2023] [Accepted: 11/18/2023] [Indexed: 11/22/2023] Open
Abstract
The objective of this study was to determine how housing temperature and genetic diversity affect the onset and severity of allogeneic T cell-induced tissue damage in mice subjected to reduced intensity conditioning (RIC). We found that adoptive transfer of allogeneic CD4+ T cells from inbred donors into sub-lethally irradiated inbred recipients (I→I) housed at standard housing temperatures (ST; 22-24 °C) induced extensive BM and spleen damage in the absence of injury to any other tissue. Although engraftment of T cells in RIC-treated mice housed at their thermo-neutral temperature (TNT; 30-32 °C) also developed similar BM and spleen damage, their survival was markedly and significantly increased when compared to their ST counterparts. In contrast, the adoptive transfer of allogeneic T cells into RIC-treated outbred CD1 recipients failed to induce disease in any tissue at ST or TNT. The lack of tissue damage was not due to defects in donor T cell trafficking to BM or spleen but was associated with the presence of large numbers of B cells and myeloid cells within these tissues that are known to contain immunosuppressive regulatory B cells and myeloid-derived suppressor cells. These data demonstrate, for the first time, that housing temperature affects the survival of RIC-treated I→I mice and that RIC-conditioned outbred mice are resistant to allogeneic T cell-induced BM and spleen damage.
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Affiliation(s)
- Josue Enriquez
- Department of Microbiology and Immunology, University of Gothenburg, 40530 Gothenburg, Sweden
| | - Brianyell McDaniel Mims
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Stephanie Stroever
- Department of Medical Education, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Andrea Pires dos Santos
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - Yava Jones-Hall
- Department of Veterinary Pathobiology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Kathryn L. Furr
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Matthew B. Grisham
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
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Junxian L, Mehrabanian M, Mivehchi H, Banakar M, Etajuri EA. The homeostasis and therapeutic applications of innate and adaptive immune cells in periodontitis. Oral Dis 2023; 29:2552-2564. [PMID: 36004490 DOI: 10.1111/odi.14360] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 08/06/2022] [Accepted: 08/18/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Periodontitis (PD) is one of the most common dental disorders. This chronic oral inflammation is caused by complicated interrelations between bacterial infections, dysregulated immune reactions, and environmental risk factors. A dysregulated immune response can lead to inflammatory bone resorption by allowing the recruitment of pro-inflammatory immune cells to the periodontal tissues. SUBJECTS The recruitment of innate and adaptive immune cells in PD initiates the acute and following chronic inflammatory processes. The inflamed tissues, on the other hand, can be restored if the anti-inflammatory lineages are predominantly established in the periodontal tissues. Therefore, we aimed to review the published literature to provide an overview of the existing knowledge about the role of immune cells in PD, as well as their possible therapeutic applications. RESULTS Experimental studies showed that drugs/systems that negatively regulate inflammatory cells in the body, as well as interventions aimed at increasing the number of anti-inflammatory cells such as Tregs and Bregs, can both help in the healing process of PD. CONCLUSION Targeting immune cells or their positive/negative manipulations has been demonstrated to be an effective therapeutic method. However, to use this sort of immunotherapy in humans, further pre-clinical investigations, as well as randomized clinical trials, are required.
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Affiliation(s)
- Li Junxian
- Department of Oral and Maxillofacial Surgery, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Mojtaba Mehrabanian
- DMD Dentist, Alumni of the Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
| | - Hassan Mivehchi
- DMD Dentist, Alumni of the Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
| | - Morteza Banakar
- Saveetha Dental College, Chennai, India
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Enas Abdalla Etajuri
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Malaya, Malaysia
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Zheng H, Cao P, Su Z, Xia L. Insights into the roles of IL-10-producing regulatory B cells in cardiovascular disorders: recent advances and future perspectives. J Leukoc Biol 2023; 114:315-324. [PMID: 37284816 DOI: 10.1093/jleuko/qiad066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 05/22/2023] [Accepted: 05/26/2023] [Indexed: 06/08/2023] Open
Abstract
Interleukin-10-producing regulatory B (B10) cells mediate the immunomodulatory functions of biosystems by secreting anti-inflammatory factors, thus playing vital roles in cardiovascular diseases such as viral myocarditis, myocardial infarction, and ischemia-reperfusion injury. However, several challenges hinder B10 cells from regulating the immunoreactivity of organisms in specific cardiovascular diseases, such as atherosclerotic disease. Regarding the regulatory mechanisms of B10 cells, the interplay between B10 cells and the cardiovascular and immune systems is complex and requires clarification. In this study, we summarize the roles of B10 cells in bacterial and aseptic heart injuries, address their regulatory functions in different stages of cardiovascular disorders, and discuss their challenges and opportunities in addressing cardiovascular diseases from bench to bedside.
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Affiliation(s)
- Huiqin Zheng
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, No. 438 Jiefang Road, Zhenjiang 212001, China
- International Genome Center, Jiangsu University, No.301 Xuefu Road, Zhenjiang 212013, China
| | - Pei Cao
- International Genome Center, Jiangsu University, No.301 Xuefu Road, Zhenjiang 212013, China
| | - Zhaoliang Su
- International Genome Center, Jiangsu University, No.301 Xuefu Road, Zhenjiang 212013, China
- Institute of Medical Immunology, Jiangsu University, No. 438 Jiefang Road, Zhenjiang 212001, China
| | - Lin Xia
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, No. 438 Jiefang Road, Zhenjiang 212001, China
- Institute of Hematological Disease, Jiangsu University, No. 438 Jiefang Road, Zhenjiang 212001, China
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Veh J, Mangold C, Felsen A, Ludwig C, Gerstner L, Reinhardt P, Schrezenmeier H, Fabricius D, Jahrsdörfer B. Phorbol-12-myristate-13-acetate is a potent enhancer of B cells with a granzyme B + regulatory phenotype. Front Immunol 2023; 14:1194880. [PMID: 37588597 PMCID: PMC10426744 DOI: 10.3389/fimmu.2023.1194880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 07/12/2023] [Indexed: 08/18/2023] Open
Abstract
Introduction The infusion of ex-vivo-generated regulatory B cells may represent a promising novel therapeutic approach for a variety of autoimmune and hyperinflammatory conditions including graft-versus-host disease. Methods Previously, we developed a protocol for the generation of a novel population of regulatory B cells, which are characterized by secretion of enzymatically active granzyme B (GraB cells). This protocol uses recombinant interleukin 21 (IL-21) and goat-derived F(ab)'2 fragments against the human B cell receptor (anti-BCR). Generally, the use of xenogeneic material for the manufacturing of advanced therapy medicinal products should be avoided to prevent adverse immune reactions as well as potential transmission of so far unknown diseases. Results In the present work we demonstrated that phorbol-12-myristate-13-acetate (PMA/TPA), a phorbol ester with a particular analogy to the second messenger diacylglycerol (DAG), is a potent enhancer of IL-21-induced differentiation of pre-activated B cells into GraB cells. The percentage of GraB cells after stimulation of pre-activated B cells with IL-21 and PMA/TPA was not significantly lower compared to stimulation with IL-21 and anti-BCR. Discussion Given that PMA/TPA has already undergone encouraging clinical testing in patients with certain haematological diseases, our results suggest that PMA/TPA may be a safe and feasible alternative for ex-vivo manufacturing of GraB cells.
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Affiliation(s)
- Johanna Veh
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg–Hessen and University Hospital Ulm, Ulm, Germany
| | - Charlotte Mangold
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg–Hessen and University Hospital Ulm, Ulm, Germany
| | - Anja Felsen
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg–Hessen and University Hospital Ulm, Ulm, Germany
| | - Carolin Ludwig
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg–Hessen and University Hospital Ulm, Ulm, Germany
| | - Lisa Gerstner
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg–Hessen and University Hospital Ulm, Ulm, Germany
| | - Peter Reinhardt
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg–Hessen and University Hospital Ulm, Ulm, Germany
| | - Hubert Schrezenmeier
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg–Hessen and University Hospital Ulm, Ulm, Germany
| | - Dorit Fabricius
- Department of Pediatrics, University Medical Center Ulm, Ulm, Germany
| | - Bernd Jahrsdörfer
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg–Hessen and University Hospital Ulm, Ulm, Germany
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Giannoukakis N. Tolerogenic dendritic cells in type 1 diabetes: no longer a concept. Front Immunol 2023; 14:1212641. [PMID: 37388741 PMCID: PMC10303908 DOI: 10.3389/fimmu.2023.1212641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 05/31/2023] [Indexed: 07/01/2023] Open
Abstract
Tolerogenic dendritic cells (tDC) arrest the progression of autoimmune-driven dysglycemia into clinical, insulin-requiring type 1 diabetes (T1D) and preserve a critical mass of β cells able to restore some degree of normoglycemia in new-onset clinical disease. The safety of tDC, generated ex vivo from peripheral blood leukocytes, has been demonstrated in phase I clinical studies. Accumulating evidence shows that tDC act via multiple layers of immune regulation arresting the action of pancreatic β cell-targeting effector lymphocytes. tDC share a number of phenotypes and mechanisms of action, independent of the method by which they are generated ex vivo. In the context of safety, this yields confidence that the time has come to test the best characterized tDC in phase II clinical trials in T1D, especially given that tDC are already being tested for other autoimmune conditions. The time is also now to refine purity markers and to "universalize" the methods by which tDC are generated. This review summarizes the current state of tDC therapy for T1D, presents points of intersection of the mechanisms of action that the different embodiments use to induce tolerance, and offers insights into outstanding matters to address as phase II studies are imminent. Finally, we present a proposal for co-administration and serially-alternating administration of tDC and T-regulatory cells (Tregs) as a synergistic and complementary approach to prevent and treat T1D.
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Affiliation(s)
- Nick Giannoukakis
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, United States
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Alaqla A, Hu Y, Huang S, Ruiz S, Kawai T, Han X. TLR9 Signaling Is Required for the Porphyromonas gingivalis-Induced Activation of IL-10-Expressing B Cells. Int J Mol Sci 2023; 24:6693. [PMID: 37047666 PMCID: PMC10094902 DOI: 10.3390/ijms24076693] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/25/2023] [Accepted: 03/30/2023] [Indexed: 04/14/2023] Open
Abstract
Immune cell pattern-recognition receptors such as Toll-like receptors (TLRs) play important roles in the regulation of host responses to periodontal pathogens. Our previous studies have demonstrated that immune regulatory B cells were activated by TLRs and alleviated periodontitis inflammation and bone loss. The purpose of this study is to determine the role of TLR9 signaling in the activation and IL-10 production of the primed-immune B cells in vitro. Wild-type (WT) and TLR9 knockout (TLR9KO) mice (C57BL/6 background, n = 5) were pre-immunized intraperitoneally with 1 × 108 formalin-fixed P. gingivalis and boosted once with 1 × 107 formalin-fixed P. gingivalis. Isolated splenocytes and purified B cells from each mouse were cultured with 1 × 108 formalin-fixed P. gingivalis for 48 h. Immunocytochemistry was performed to detect CD45+ IL-10+ cells. Levels of IL-10 expression and secretion in splenocytes and B cells were detected using qRT-PCR and ELISA, respectively. After stimulation with fixed P. gingivalis, the percentage of CD45+ IL-10+ B cells and the level of IL-10 expression were significantly increased (p < 0.01) in splenocytes and purified B cells isolated from WT mice. However, these changes were not observed in splenocytes and purified B cells from TLR9KO mice when the cells were treated with fixed P. gingivalis. The percentage of CD45+ IL-10+ B cells was significantly reduced in splenocytes and purified B cells from TLR9KO mice compared to those from WT mice when challenged with P. gingivalis. IL-10 expression in B cells from TLR9KO mice was significantly decreased compared to those from WT mice at both the mRNA and protein levels. Additionally, P. gingivalis-induced up-regulation of TNF-α mRNA expressions were consistently observed in B cells from both WT and TLR9KO mice. P. gingivalis-induced B10 activation and IL-10 production during adaptive responses by primed B cells requires TLR9 signaling and can be achieved independent of T-cell help.
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Affiliation(s)
- Ali Alaqla
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA
| | - Yang Hu
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA
| | - Shengyuan Huang
- Department of Oral Science and Translation Research, College of Dental Medicine, Nova Southeastern University, 3301 College Ave., Fort Lauderdale, FL 33314, USA
| | - Sunniva Ruiz
- Department of Oral Science and Translation Research, College of Dental Medicine, Nova Southeastern University, 3301 College Ave., Fort Lauderdale, FL 33314, USA
| | - Toshihisa Kawai
- Department of Oral Science and Translation Research, College of Dental Medicine, Nova Southeastern University, 3301 College Ave., Fort Lauderdale, FL 33314, USA
| | - Xiaozhe Han
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA
- Department of Oral Science and Translation Research, College of Dental Medicine, Nova Southeastern University, 3301 College Ave., Fort Lauderdale, FL 33314, USA
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Nikolova-Ganeva K, Vasilev V, Kerezieva S, Tchorbanov A. Impact of folic acid on regulatory B lymphocytes from patients with systemic lupus erythematosus in vitro. Int J Rheum Dis 2023; 26:298-304. [PMID: 36385742 DOI: 10.1111/1756-185x.14496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/16/2022] [Accepted: 10/31/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Epigenetic modifications of genomes are of particular interest as numerous studies indicate the correlation between DNA methylation and the development of systemic lupus. As a major methyl group donor, folic acid is an important participant in this process. The aim of this study is to determine the effect of low or high dose folate co-culturing with peripheral blood mononuclear cells (PBMCs) on the secretion of interleukin (IL)10 from regulatory cells from lupus patients or from healthy volunteers. METHODS PBMCs from lupus patients and healthy volunteers were isolated and separated CD19+ B cell populations were cultured in the presence of 4 μg/mL or of 16 μg/mL of folic acid and the DNA methylation level as well as the percentages of B lymphocytes were measured. In another experiment, PBMCs were stimulated in vitro for IL10 production with 1 μg/mL recombinant human CD40L and with 2.5 μg/mL unmethylated CpG dinucleotides and cultured in the presence of 4 μg/mL or of 16 μg/mL of folic acid. RESULTS Although co-culturing with low or high folic acid concentrations had no effect on the methylation level of B lymphocytes, particular patients showed an increase in the population of CD19+ IL10+ as well as of CD19- IL10+ cells. CONCLUSION The observed increase may be a consequence of additional indirect or direct methylation of DNA in specific loci of the targeted cells. However, further analysis would clarify the exact mechanism of action of folate and would reveal its immunomodulating potential in this autoimmune disease.
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Affiliation(s)
- Kalina Nikolova-Ganeva
- Department of Immunology, Laboratory of Experimental Immunology, The "Stephan Angeloff" Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Vasil Vasilev
- Department of Nephrology, University Hospital "Tsaritsa Yoanna - ISUL", Medical University - Sofia, Sofia, Bulgaria
| | - Simona Kerezieva
- Department of Nephrology, University Hospital "Tsaritsa Yoanna - ISUL", Medical University - Sofia, Sofia, Bulgaria
| | - Andrey Tchorbanov
- Department of Immunology, Laboratory of Experimental Immunology, The "Stephan Angeloff" Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
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Conejo-Garcia JR, Biswas S, Chaurio R, Rodriguez PC. Neglected no more: B cell-mediated anti-tumor immunity. Semin Immunol 2023; 65:101707. [PMID: 36527759 PMCID: PMC10123518 DOI: 10.1016/j.smim.2022.101707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Immuno-oncology has traditionally focused on the cellular arm of the adaptive immune response, while attributing tumor-promoting activity to humoral responses in tumor-bearing hosts. This view stems from mouse models that do not necessarily recapitulate the antibody response process consistently observed in most human cancers. In recent years, the field has reconsidered the coordinated action of T and B cell responses in the context of anti-tumor immunity, as in any other immune response. Thus, recent studies in human cancer identify B cell responses with better outcome, typically in association with superior T cell responses. An area of particular interest is tertiary lymphoid structures, where germinal centers produce isotype switched antibodies and B cells and T lymphocytes interact with other immune cell types. The presence of these lymphoid structures is associated with better immunotherapeutic responses and remain poorly understood. Here, we discuss recent discoveries on how coordination between humoral and cellular responses is required for effective immune pressure against malignant progression, providing a perspective on the role of tertiary lymphoid structures and interventions to elicit their formation in unresectable tumors.
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Affiliation(s)
- Jose R Conejo-Garcia
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA.
| | - Subir Biswas
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - Ricardo Chaurio
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - Paulo C Rodriguez
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
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11
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Wu J, Wang Y, Bai S, Sun H, Zhang J, Shu J, Wang Y, Tan M, Zhou L, Huang B, Pan Q, Sheng H. Aberrant alteration of peripheral B lymphocyte subsets in hepatocellular carcinoma patients. Int J Med Sci 2023; 20:267-277. [PMID: 36794164 PMCID: PMC9925981 DOI: 10.7150/ijms.79305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 01/13/2023] [Indexed: 02/05/2023] Open
Abstract
Although B lymphocytes are widely known to participate in the immune response, the conclusive roles of B lymphocyte subsets in the antitumor immune response have not yet been determined. Single-cell data from GEO datasets were first analyzed, and then a B cell flow cytometry panel was used to analyze the peripheral blood of 89 HCC patients and 33 healthy controls recruited to participate in our research. Patients with HCC had a higher frequency of B10 cells and a lower percentage of MZB cells than healthy controls. And the changes in B cell subsets might occur at an early stage. Moreover, the frequency of B10 cells decreased after surgery. Positively correlated with B10 cells, the elevated IL-10 level in HCC serum may be a new biomarker in HCC identification. For the first time, our results suggest that altered B cell subsets are associated with the development and prognosis of HCC. Increased B10 cell percentage and IL-10 in HCC patients suggest they might augment the development of liver tumors. Hence, B cell subsets and related cytokines may have predictive value in HCC patients and could be potential targets for immunotherapy in HCC.
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Affiliation(s)
- Jiaoxiang Wu
- Department of Clinical Laboratory, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Key Laboratory for Translational Research and Innovative Therapeutics of Gastrointestinal Oncology, Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yue Wang
- Shanghai 10th people's hospital affiliated to Tong Ji University school of medicine, Shanghai, China
| | - Shihao Bai
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Centre for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hanxiao Sun
- Department of Clinical Laboratory, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Zhang
- Department of Clinical Laboratory, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Shu
- Department of Clinical Laboratory, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yajie Wang
- Department of Clinical Laboratory, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Meiyu Tan
- Department of Clinical Laboratory, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lida Zhou
- Department of Clinical Laboratory, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Biao Huang
- Immunoassay Laboratory, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Qiuhui Pan
- Department of Clinical Laboratory Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Huiming Sheng
- Department of Clinical Laboratory, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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12
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Differential Immunomodulatory Effects of Head and Neck Cancer-Derived Exosomes on B Cells in the Presence of ATP. Int J Mol Sci 2022; 23:ijms232214446. [PMID: 36430925 PMCID: PMC9693630 DOI: 10.3390/ijms232214446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/13/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is an aggressive malignancy. Tumor-derived exosomes (TEX) have immunoregulatory properties. Adenosine triphosphate (ATP) and its immunosuppressive precursor adenosine (ADO) have been found in cancerous tissue. We investigated the effect of TEX on B cells in the presence of ATP. TEX were isolated from human HNSCC cell line (PCI-13) cultures and co-cultured with peripheral blood B cells of healthy donors, with or without TEX in different concentrations and with or without a low (20 µM) or high (2000 µM) ATP dose. We were able to demonstrate that TEX inhibit B-cell proliferation. The addition of TEX to either ATP concentration showed a decreasing trend in CD39 expression on B cells in a dose-dependent manner. High ATP levels (2000 µM) increased apoptosis and necrosis, and analysis of apoptosis-associated proteins revealed dose-dependent effects of ATP, which were modified by TEX. Altogether, TEX exhibited dual immunomodulatory effects on B cells. TEX were immunosuppressive by inhibiting B-cell proliferation; they were immunostimulatory by downregulating CD39 expression. Furthermore, TEX were able to modulate the expression of pro- and anti-apoptotic proteins. In conclusion, our data indicate that TEX play an important, but complex, role in the tumor microenvironment.
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13
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Milburn JV, Hoog A, Villanueva-Hernández S, Mair KH, Gerner W. Identification of IL-10 competent B cells in swine. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 135:104488. [PMID: 35777534 DOI: 10.1016/j.dci.2022.104488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Progress in the phenotypic characterisation of porcine B cells is ongoing, with recent advances in the identification of B1 cell subsets and plasma cells. However, regulatory B cells, commonly identified by interleukin (IL)-10 production, have not been studied in pigs so far. Here we investigate IL-10 expression in B cell subsets in response to CpG-oligodeoxynucleotides, phorbol 12-myristate 13-acetate and ionomycin stimulation in vitro. Our results reflect similar findings in human and mice. We identify a small subset of IL-10 competent B cells, present within both porcine B1 and B2 cell subsets across blood, spleen, mediastinal lymph nodes and lung tissue, with varied differentiation statuses. The capacity for IL-10 production coincided with CD95 expression, suggesting an activated phenotype of IL-10 competent B cells. These findings support the emerging paradigm that B cell IL-10 production is a function of various B cell subsets influenced by activation history and microenvironmental factors.
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Affiliation(s)
- Jemma V Milburn
- Christian Doppler Laboratory for Optimized Prediction of Vaccination Success in Pigs, Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Austria
| | - Anna Hoog
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Austria
| | - Sonia Villanueva-Hernández
- Christian Doppler Laboratory for Optimized Prediction of Vaccination Success in Pigs, Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Austria
| | - Kerstin H Mair
- Christian Doppler Laboratory for Optimized Prediction of Vaccination Success in Pigs, Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Austria; Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Austria
| | - Wilhelm Gerner
- Christian Doppler Laboratory for Optimized Prediction of Vaccination Success in Pigs, Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Austria; Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Austria.
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14
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Lomakin YA, Zvyagin IV, Ovchinnikova LA, Kabilov MR, Staroverov DB, Mikelov A, Tupikin AE, Zakharova MY, Bykova NA, Mukhina VS, Favorov AV, Ivanova M, Simaniv T, Rubtsov YP, Chudakov DM, Zakharova MN, Illarioshkin SN, Belogurov AA, Gabibov AG. Deconvolution of B cell receptor repertoire in multiple sclerosis patients revealed a delay in tBreg maturation. Front Immunol 2022; 13:803229. [PMID: 36052064 PMCID: PMC9425031 DOI: 10.3389/fimmu.2022.803229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundB lymphocytes play a pivotal regulatory role in the development of the immune response. It was previously shown that deficiency in B regulatory cells (Bregs) or a decrease in their anti-inflammatory activity can lead to immunological dysfunctions. However, the exact mechanisms of Bregs development and functioning are only partially resolved. For instance, only a little is known about the structure of their B cell receptor (BCR) repertoires in autoimmune disorders, including multiple sclerosis (MS), a severe neuroinflammatory disease with a yet unknown etiology. Here, we elucidate specific properties of B regulatory cells in MS.MethodsWe performed a prospective study of the transitional Breg (tBreg) subpopulations with the CD19+CD24highCD38high phenotype from MS patients and healthy donors by (i) measuring their content during two diverging courses of relapsing-remitting MS: benign multiple sclerosis (BMS) and highly active multiple sclerosis (HAMS); (ii) analyzing BCR repertoires of circulating B cells by high-throughput sequencing; and (iii) measuring the percentage of CD27+ cells in tBregs.ResultsThe tBregs from HAMS patients carry the heavy chain with a lower amount of hypermutations than tBregs from healthy donors. The percentage of transitional CD24highCD38high B cells is elevated, whereas the frequency of differentiated CD27+ cells in this transitional B cell subset was decreased in the MS patients as compared with healthy donors.ConclusionsImpaired maturation of regulatory B cells is associated with MS progression.
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Affiliation(s)
- Yakov A. Lomakin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Ivan V. Zvyagin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Leyla A. Ovchinnikova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Marsel R. Kabilov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch Russian Academy of Sciences (RAS), Novosibirsk, Russia
| | - Dmitriy B. Staroverov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Artem Mikelov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Alexey E. Tupikin
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch Russian Academy of Sciences (RAS), Novosibirsk, Russia
| | - Maria Y. Zakharova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
- Department of Molecular Technologies, Institute of Translational Medicine, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Nadezda A. Bykova
- Institute for Information Transmission Problems (Kharkevich Institute), Russian Academy of Sciences (RAS), Moscow, Russia
| | - Vera S. Mukhina
- Institute for Information Transmission Problems (Kharkevich Institute), Russian Academy of Sciences (RAS), Moscow, Russia
- Vavilov Institute of General Genetics, Russian Academy of Sciences (RAS), Moscow, Russia
| | - Alexander V. Favorov
- Vavilov Institute of General Genetics, Russian Academy of Sciences (RAS), Moscow, Russia
- Quantitative Sciences Division, Department of Oncology, Johns Hopkins University, Baltimore, MD, United States
| | - Maria Ivanova
- Neuroinfection Department of the Research Center of Neurology, Moscow, Russia
| | - Taras Simaniv
- Neuroinfection Department of the Research Center of Neurology, Moscow, Russia
| | - Yury P. Rubtsov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Dmitriy M. Chudakov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
- Department of Molecular Technologies, Institute of Translational Medicine, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Maria N. Zakharova
- Neuroinfection Department of the Research Center of Neurology, Moscow, Russia
| | | | - Alexey A. Belogurov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
- Department of Biological Chemistry, Evdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
- *Correspondence: Alexey A. Belogurov Jr., ; Alexander G. Gabibov,
| | - Alexander G. Gabibov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
- Department of Life Sciences, Higher School of Economics, Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
- *Correspondence: Alexey A. Belogurov Jr., ; Alexander G. Gabibov,
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15
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Shah BJ, Mistry D, Shah SR. Long term efficacy and safety analysis of single cycle of biosimilar Rituximab in pemphigus: A retrospective study of 76 patients from India. Dermatol Ther 2022; 35:e15704. [PMID: 35808907 DOI: 10.1111/dth.15704] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/24/2022] [Accepted: 07/06/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Pemphigus poses a therapeutic challenge and Rituximab is increasingly used in its treatment. Long term data regarding efficacy and safety of Rituximab in pemphigus is limited. METHODS This study was a retrospective analysis of 76 pemphigus patients with primary endpoint being the percentage of patients achieving complete remission (CR) on/off therapy. Secondary endpoints were time to relapse, mean cumulative dose of prednisolone after Rituximab infusion, mean duration of follow up and adverse events to Rituximab if any. RESULTS A total of 62 (82.7%) attained complete remission on/off treatment, out of which 42 were off therapy. Mean interval between first dose rituximab administration and complete remission off treatment was 6.9 ± 3.7 months. Complete remission off treatment was sustained for a mean duration of 21.4 ± 17.8 months before relapse. Over a mean follow-up duration of 42.7 ± 24.9 months (median 41, maximum 83 months), 22 of 62 patients (35.5%) who had achieved complete remission after the first cycle of rituximab relapsed. A mean total cumulative dose of 8716.3 ± 10533.8 mg prednisolone was prescribed over a mean duration of 18.05 ± 15.64 months after the first cycle of rituximab. Adverse events were noted in 18 out of 76 patients (23.7%) which included infusion reactions (n=3), minor infections (n=7), transitory disease flare (n=6) and mortality (n=2). No statistically significant correlation was found between remission/relapse rates and age, gender, pemphigus subtype or disease duration. CONCLUSION This study substantiates the long-term efficacy and safety of single cycle of Rituximab in pemphigus.
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Affiliation(s)
- Bela J Shah
- B.J. Medical College and Civil Hospital, Ahmedabad, Gujarat, India
| | - Deval Mistry
- B.J. Medical College and Civil Hospital, Ahmedabad, Gujarat, India
| | - Shikha R Shah
- B.J. Medical College and Civil Hospital, Ahmedabad, Gujarat, India
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16
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Zou J, Zeng Z, Xie W, Zeng Z. Immunotherapy with regulatory T and B cells in periodontitis. Int Immunopharmacol 2022; 109:108797. [PMID: 35487085 DOI: 10.1016/j.intimp.2022.108797] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 01/04/2023]
Abstract
Periodontitis (PD), also known as gum disease, is a condition causing inflammatory bone resorption and tooth loss. Regulatory T cells (Tregs) and regulatory B cells (Bregs) are vital in controlling the immune response and hence play a role in infections and peripheral tolerance adjustment. These cells have immunosuppressive and tissue-repairing capabilities that are important for periodontal health; however, in inflammatory circumstances, Tregs may become unstable and dysfunctional, accelerating tissue deterioration. In recent years, Regulatory cell-mediated immunotherapy has been shown to be effective in many inflammatory diseases. Considering the roles of Tregs and Bregs in shaping immune responses, this study aimed to review the published articles in this field to provide a comprehensive view of the existing knowledge about the role of regulatory T and B cells, as well as their therapeutic applications in PD.
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Affiliation(s)
- Juan Zou
- Department of stomatology, Maternal and Child Health Centre, Ganzhou, Jiangxi 341000, China
| | - Zijun Zeng
- Anesthesia surgery, The First Affiliated Hospital of Gannan Medical College, Ganzhou, Jiangxi 341000, China
| | - Wen Xie
- Health Management Center, The First Affiliated Hospital of Gannan Medical College, Ganzhou, Jiangxi 341000, China
| | - Zhimei Zeng
- The First Affiliated Hospital of Gannan Medical College Dental Department Ganzhou, Jiangxi 341000, China.
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17
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Wang M, Li X, Wang Q, Zhang M, He J, Ming S, Wang Z, Cao C, Zhang S, Geng L, Gong S, Huang X, Chen K, Wu Y. TLT-1 Promotes Platelet-Monocyte Aggregate Formation to Induce IL-10-Producing B Cells in Tuberculosis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:1642-1651. [PMID: 35277419 DOI: 10.4049/jimmunol.2001218] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/30/2022] [Indexed: 06/14/2023]
Abstract
The immunoregulation of platelets and platelet-monocyte aggregates (PMAs) is increasingly recognized, but it roles in tuberculosis (TB) remain to be elucidated. In this study, we found that CD14+CD41+ PMAs were increased in peripheral blood of patients with active TB. CD14+CD41+ PMAs highly expressed triggering receptors expressed on myeloid cells (TREMs)-like transcript-1 (TLT-1), P-selectin (CD62P), and CD40L. Our in vitro study found that platelets from patients with active TB aggregate with monocytes to induce IL-1β and IL-6 production by monocytes. Importantly, we identified that TLT-1 was required for formation of PMAs. The potential TLT-1 ligand was expressed and increased on CD14+ monocytes of patients with TB determined by using TLT-1 fusion protein (TLT-1 Fc). Blocking of ligand-TLT-1 interaction with TLT-1 Fc reduced PMA formation and IL-1β and IL-6 production by monocytes. Further results demonstrated that PMAs induced IL-10 production by B cells (B10) dependent on IL-1β, IL-6, and CD40L signals in a coculture system. Moreover, TLT-1 Fc treatment suppressed B10 polarization via blocking PMA formation. Taking all of these data together, we elucidated that TLT-1 promoted PMA-mediated B10 polarization through enhancing IL-1β, IL-6, and CD40L origin from PMAs, which may provide potential targeting strategies for TB disease treatment.
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Affiliation(s)
- Manni Wang
- Center for Infection and Immunity, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Imaging, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province, China
- Department of Interventional Medicine, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Xingyu Li
- Center for Infection and Immunity, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Imaging, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province, China
- Department of Interventional Medicine, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Qiaohua Wang
- Center for Infection and Immunity, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Mei Zhang
- Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, Guangdong Province, China
| | - Jianzhong He
- Department of Pathology, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Siqi Ming
- Center for Infection and Immunity, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
- National Clinical Research Center for Infectious Diseases, Third People's Hospital of Shenzhen, Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - Ziqing Wang
- Department of Gastroenterology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong Province, China; and
| | - Can Cao
- Center for Infection and Immunity, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Shunxian Zhang
- Department of Gastroenterology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong Province, China; and
| | - Lanlan Geng
- Department of Gastroenterology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong Province, China; and
| | - Sitang Gong
- Department of Gastroenterology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong Province, China; and
| | - Xi Huang
- Center for Infection and Immunity, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China;
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Imaging, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province, China
- Department of Interventional Medicine, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province, China
- Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, Guangdong Province, China
- Department of Laboratory Medicine, Zhongshan City People's Hospital, Zhongshan, Guangdong Province, China
| | - Kang Chen
- Department of Gastroenterology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong Province, China; and
| | - Yongjian Wu
- Center for Infection and Immunity, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangdong Provincial Key Laboratory of Biomedical Imaging, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province, China
- Department of Interventional Medicine, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province, China
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Jiang R, Qin Y, Wang Y, Xu X, Chen H, Xu K, Zhang M. Dynamic Number and Function of IL-10-Producing Regulatory B Cells in the Immune Microenvironment at Distinct Stages of Type 1 Diabetes. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:1034-1041. [PMID: 35140133 DOI: 10.4049/jimmunol.2100357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 12/17/2021] [Indexed: 01/12/2023]
Abstract
The critical role of IL-10-producing B cells (B10 cells) with a unique CD1dhiCD5+ phenotype in suppressing autoimmune responses and relieving inflammation has been demonstrated in several models of autoimmune diseases. However, the regulatory role of B10 cells in T cell-mediated autoimmune responses during the natural history of type 1 diabetes is unclear. In this study, we used the NOD mouse model of autoimmune diabetes to clarify the changes and potential mechanisms of B10 cells for disease. Compared with B10 cells present in the 4-wk-old normoglycemic NOD mice, the frequency of B10 cells was increased in the insulitis and diabetic NOD mice, with the highest proportion in the insulitis NOD mice. The changes in the relative number of B10 cells were most pronounced in the pancreas-draining lymph nodes. The pathogenic T cells, including Th1 and Th17 cells, remarkably increased. The assays in vitro showed that B10 cells in the NOD mice did not inhibit the proliferation of CD4+CD25- T cells. They also had no regulatory effect on IFN-γ and IL-4 secretion or on Foxp3 expression of T cells. B10 cells suppressed T cell-mediated autoimmune responses via an IL-10-dependent pathway. In contrast, B10 cells in the NOD mice exhibited a significant reduction in IL-10 production. In summary, a defect in the number and function of B10 cells may participate in the development and progression of type 1 diabetes.
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Affiliation(s)
- Ruimei Jiang
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Endocrinology, Fuyang People's Hospital, Fuyang, China; and
| | - Yao Qin
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yueshu Wang
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xinyu Xu
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Heng Chen
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Kuanfeng Xu
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Mei Zhang
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China;
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19
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Somoza M, Bertelli A, Pratto CA, Verdun RE, Campetella O, Mucci J. Trypanosoma cruzi Induces B Cells That Regulate the CD4 + T Cell Response. Front Cell Infect Microbiol 2022; 11:789373. [PMID: 35071041 PMCID: PMC8766854 DOI: 10.3389/fcimb.2021.789373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/06/2021] [Indexed: 12/12/2022] Open
Abstract
Trypanosoma cruzi infection induces a polyclonal B cell proliferative response characterized by maturation to plasma cells, excessive generation of germinal centers, and secretion of parasite-unrelated antibodies. Although traditionally reduced to the humoral response, several infectious and non-infectious models revealed that B lymphocytes could regulate and play crucial roles in cellular responses. Here, we analyze the trypomastigote-induced effect on B cells, their effects on CD4+ T cells, and their correlation with in vivo findings. The trypomastigotes were able to induce the proliferation and the production of IL-10 or IL-6 of naïve B cells in co-culture experiments. Also, we found that IL-10-producing B220lo cells were elicited in vivo. We also found up-regulated expression of FasL and PD-L1, proteins involved in apoptosis induction and inhibition of TCR signaling, and of BAFF and APRIL mRNAs, two B-cell growth factors. Interestingly, it was observed that IL-21, which plays a critical role in regulatory B cell differentiation, was significantly increased in B220+/IL-21+ in in vivo infections. This is striking since the secretion of IL-21 is associated with T helper follicular cells. Furthermore, trypomastigote-stimulated B-cell conditioned medium dramatically reduced the proliferation and increased the apoptotic rate on CD3/CD28 activated CD4+ T cells, suggesting the development of effective regulatory B cells. In this condition, CD4+ T cells showed a marked decrease in proliferation and viability with marginal IL-2 or IFNγ secretion, which is counterproductive with an efficient immune response against T. cruzi. Altogether, our results show that B lymphocytes stimulated with trypomastigotes adopt a particular phenotype that exerts a strong regulation of this T cell compartment by inducing apoptosis, arresting cell division, and affecting the developing of a proinflammatory response.
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Affiliation(s)
- Martín Somoza
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín-CONICET, Buenos Aires, Argentina
| | - Adriano Bertelli
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín-CONICET, Buenos Aires, Argentina
| | - Cecilia A Pratto
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín-CONICET, Buenos Aires, Argentina
| | - Ramiro E Verdun
- Sylvester Comprehensive Cancer Center and Division of Hematology, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Oscar Campetella
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín-CONICET, Buenos Aires, Argentina
| | - Juan Mucci
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín-CONICET, Buenos Aires, Argentina
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20
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Néel A, Degauque N, Bruneau S, Braudeau C, Bucchia M, Caristan A, De Mornac D, Genin V, Glemain A, Oriot C, Rimbert M, Brouard S, Josien R, Hamidou M. [Pathogenesis of ANCA-associated vasculitides in 2021: An update]. Rev Med Interne 2022; 43:89-97. [PMID: 35033384 DOI: 10.1016/j.revmed.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 10/22/2021] [Accepted: 11/04/2021] [Indexed: 10/19/2022]
Abstract
Anticytoplasmic neutrophil antibodies (ANCA)-associated vasculitis (AAV) are rare systemic immune-mediated diseases characterized by small vessel necrotizing vasculitis and/or respiratory tract inflammation. Over the last 2 decades, anti-MPO vasculitis mouse model has enlightened the role of ANCA, neutrophils, complement activation, T helper cells (Th1, Th17) and microbial agents. In humans, CD4T cells have been extensively studied, while the dramatic efficacy of rituximab demonstrated the key role of B cells. Many areas of uncertainty remain, such as the driving force of GPA extra-vascular granulomatous inflammation and the relapse risk of anti-PR3 AAV pathogenesis. Animal models eventually led to identify complement activation as a promising therapeutic target. New investigation tools, which permit in depth immune profiling of human blood and tissues, may open a new era for the studying of AAV pathogenesis.
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Affiliation(s)
- A Néel
- Service de médecine interne, CHU de Nantes, Nantes, France; Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France; Centre de référence maladies auto-immunes systémiques Rares, hôpital Cochin, AP-HP, Paris, France.
| | - N Degauque
- Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France
| | - S Bruneau
- Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France
| | - C Braudeau
- Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France; Laboratoire d'immunologie, CHU de Nantes, Nantes, France
| | - M Bucchia
- Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France; Service de pédiatrie, CHU de Nantes, Nantes, France
| | - A Caristan
- Service de médecine interne, CHD Vendée, La-Roche-Sur-Yon, France
| | - D De Mornac
- Service de médecine interne, CHU de Nantes, Nantes, France; Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France
| | - V Genin
- Service de médecine interne, CHU de Nantes, Nantes, France; Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France
| | - A Glemain
- Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France
| | - C Oriot
- Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France; Service de pédiatrie, CHU de Nantes, Nantes, France
| | - M Rimbert
- Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France; Laboratoire d'immunologie, CHU de Nantes, Nantes, France
| | - S Brouard
- Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France
| | - R Josien
- Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France; Laboratoire d'immunologie, CHU de Nantes, Nantes, France
| | - M Hamidou
- Service de médecine interne, CHU de Nantes, Nantes, France; Inserm, centre de recherche en transplantation et immunologie, UMR 1064, université de Nantes, Nantes, France
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21
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Update on B Cell Response in Periodontitis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1373:175-193. [DOI: 10.1007/978-3-030-96881-6_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Garcia SG, Sandoval-Hellín N, Franquesa M. Regulatory B Cell Therapy in Kidney Transplantation. Front Pharmacol 2021; 12:791450. [PMID: 34950041 PMCID: PMC8689004 DOI: 10.3389/fphar.2021.791450] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 11/22/2021] [Indexed: 01/22/2023] Open
Abstract
In the context of kidney injury, the role of Bregs is gaining interest. In a number of autoimmune diseases, the number and/or the function of Bregs has been shown to be impaired or downregulated, therefore restoring their balance might be a potential therapeutic tool. Moreover, in the context of kidney transplantation their upregulation has been linked to tolerance. However, a specific marker or set of markers that define Bregs as a unique cell subset has not been found and otherwise multiple phenotypes of Bregs have been studied. A quest on the proper markers and induction mechanisms is now the goal of many researchers. Here we summarize the most recent evidence on the role of Bregs in kidney disease by describing the relevance of in vitro and in vivo Bregs induction as well as the potential use of Bregs as cell therapy agents in kidney transplantation.
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Affiliation(s)
- Sergio G Garcia
- REMAR-IGTP Group, Germans Trias i Pujol Research Institute (IGTP) and Nephrology Department, University Hospital Germans Trias i Pujol (HUGTiP), Can Ruti Campus, Badalona (Barcelona), Catalonia, Spain.,Department of Cell Biology, Physiology and Immunology, Autonomous University of Barcelona, Bellaterra, Spain
| | - Noelia Sandoval-Hellín
- REMAR-IGTP Group, Germans Trias i Pujol Research Institute (IGTP) and Nephrology Department, University Hospital Germans Trias i Pujol (HUGTiP), Can Ruti Campus, Badalona (Barcelona), Catalonia, Spain
| | - Marcella Franquesa
- REMAR-IGTP Group, Germans Trias i Pujol Research Institute (IGTP) and Nephrology Department, University Hospital Germans Trias i Pujol (HUGTiP), Can Ruti Campus, Badalona (Barcelona), Catalonia, Spain
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23
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Blockade of protease-activated receptor 2 attenuates allergen-mediated acute lung inflammation and leukocyte recruitment in mice. J Biosci 2021. [DOI: 10.1007/s12038-021-00239-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Bottomley MJ, Brook MO, Shankar S, Hester J, Issa F. Towards regulatory cellular therapies in solid organ transplantation. Trends Immunol 2021; 43:8-21. [PMID: 34844848 DOI: 10.1016/j.it.2021.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/10/2021] [Accepted: 11/01/2021] [Indexed: 01/03/2023]
Abstract
Organ transplantation is a modern medical success story. However, since its inception it has been limited by the need for pharmacological immunosuppression. Regulatory cellular therapies offer an attractive solution to these challenges by controlling transplant alloresponses through multiple parallel suppressive mechanisms. A number of cell types have seen an accelerated development into human trials and are now on the threshold of a long-awaited breakthrough in personalized transplant therapeutics. Here we assess recent developments with a focus on the most likely candidates, some of which have already facilitated successful immunosuppression withdrawal in early clinical trials. We propose that this may constitute a promising approach in clinical transplantation but also evaluate outstanding issues in the field, providing cause for cautious optimism.
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Affiliation(s)
- Matthew J Bottomley
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Oxford Transplant Centre, Churchill Hospital, Oxford, UK
| | - Matthew O Brook
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Oxford Transplant Centre, Churchill Hospital, Oxford, UK
| | - Sushma Shankar
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Oxford Transplant Centre, Churchill Hospital, Oxford, UK
| | - Joanna Hester
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Fadi Issa
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.
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25
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SDF-1 α Facilitates Mesenchymal Stem Cells to Induce Regulatory B Cell Differentiation from Patients with Immune Thrombocytopenia. Stem Cells Int 2021; 2021:3254488. [PMID: 34790240 PMCID: PMC8592740 DOI: 10.1155/2021/3254488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 10/11/2021] [Indexed: 11/28/2022] Open
Abstract
B cells play a central role in the pathogenesis of immune thrombocytopenia (ITP) by participating in humoral immunity. Meanwhile, regulatory B cells (Bregs), one subset of B cells, express negative regulatory effect on ITP. Mesenchymal stem cells (MSCs) have been demonstrated in the ability to induce immunosuppression, and stromal cell-derived factor-1α (SDF-1α) plays an important role in the migration and survival of MSCs. To investigate the mechanism of SDF-1α in controlling umbilical cord-derived MSCs (UC-MSCs) in inducing regulatory B cell differentiation of patients with ITP, we reconfirmed that SDF-1α promotes the proliferation of MSCs at the low doses of 0.05 μg/mL and 0.1 μg/mL but inhibits the proliferation and promotes the apoptosis of UC-MSCs at the high doses 0.5 μg/mL and 1 μg/mL; when UC-MSCs are cocultured with SDF-1α at 0.1 μg/mL, the decreased proportion of CD19+/CD24hi/CD38hi cells and IL-10-producing B cells (B 10 cell), considered as the Breg subset from ITP significantly enhanced, and the content of IL-10 in the supernatant is also obviously increased. The proportion of Bregs and the IL-10 secretion could be further promoted by the UC-MSCs treated with 0.1 μg/mL SDF-1α, which could also promote the miRNA-133 expression of UC-MSCs in an exosome-dependent manner; moreover, while the UC-MSCs were transfected with the miR-133 inhibitor, the proportion of induced Bregs decreased obviously when cocultured with peripheral blood mononuclear cells (PBMCs) of ITP. We conclude that UC-MSCs could effectively enhance the decreased proportion of Bregs from ITP; at appropriate concentrations, SDF-1α may promote the proliferating and survival ability of UC-MSCs and improve the production of Bregs induced by UC-MSCs through controlling miRNA-133 expression in the exosomes.
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26
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Faßbender S, Sondenheimer K, Majora M, Schindler J, Opitz FV, Pollet M, Haarmann-Stemmann T, Krutmann J, Weighardt H. Keratinocytes Counteract UVB-Induced Immunosuppression in Mice Via HIF-1a Signaling. J Invest Dermatol 2021; 142:1183-1193. [PMID: 34571000 DOI: 10.1016/j.jid.2021.07.185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 07/14/2021] [Accepted: 07/23/2021] [Indexed: 01/20/2023]
Abstract
The transcription factor Hypoxia-Inducible Factor-1alpha (HIF-1a) regulates cellular metabolism under hypoxia but also immune responses and UVB-induced skin reactions. In keratinocytes, HIF-1a is an environmental sensor orchestrating the adaptation to environmental changes. Here, we investigated the role of HIF-1a in keratinocytes for skin reactions to acute and chronic UVB exposure in mice. The function of HIF-1a in keratinocytes under UVB exposure was analyzed in conditional keratinocyte-specific HIF-1a-KO (in short "cKO") mice. cKO mice were hypersensitive to acute high-dose UVB irradiation compared to wildtype (WT), displaying increased cell death and delayed barrier repair. After chronic low-dose UVB treatment, cKO mice also had stronger epidermal damage but reduced infiltration of dermal macrophages and T helper cells compared to WT mice. Irradiated cKO mice revealed accumulation of regulatory lymphocytes in dorsal skin-draining lymph nodes compared to WT and unirradiated mice. This was reflected by augmented IL-10 release of lymph node cells and a weaker contact hypersensitivity reaction to DNFB in UVB-exposed cKO mice compared to WT and unirradiated controls. In summary, we found that keratinocyte-specific HIF-1a expression is crucial for adaptation to UVB exposure and inhibits the development of UVB-induced immunosuppression in mice. Therefore, HIF-1a signaling in keratinocytes could ameliorate photoaging-related skin disorders.
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Affiliation(s)
- Sonja Faßbender
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Strasse 31, D-53115 Bonn, Germany; IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany.
| | - Kevin Sondenheimer
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Marc Majora
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Jennifer Schindler
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Friederike V Opitz
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Strasse 31, D-53115 Bonn, Germany; IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Marius Pollet
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Thomas Haarmann-Stemmann
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Jean Krutmann
- IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
| | - Heike Weighardt
- Immunology and Environment, Life and Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Strasse 31, D-53115 Bonn, Germany; IUF Leibniz Research Institute for Environmental Medicine, Auf´m Hennekamp 50, D-40225 Duesseldorf, Germany
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27
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Qiu Z, Li Q, Lu Y, Wang Q. Clinical significance and prognostic value of circulating B10 cells in colorectal cancer. Asia Pac J Clin Oncol 2021; 18:e157-e162. [PMID: 34314570 DOI: 10.1111/ajco.13586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 02/14/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND B10 cells, a subset of regulatory B cells, can inhibit antitumor response and thus promote tumor development. This study explored the clinical meaning and prognostic value of circulating B10 cells in colorectal cancer (CRC). MATERIALS AND METHODS The proportion of B10 cells in peripheral blood in CRC patients and healthy controls was detected by multicolor flow cytometry. RESULTS The proportion of circulating B10 cells was remarkably elevated in CRC patients compared to normal controls (% of CD19+ B cells; 16.6% (IQR 6.0%) versus 9.0% (IQR 5.7%), p < 0.001). B10 cells proportion was associated with tumor size, depth of invasion, lymph node metastasis, and TNM stage in CRC. Kaplan-Meier analysis indicated that CRC patients with high B10 cells proportion suffered worse overall survival than those with low B10 cells proportion. Multivariate analysis revealed that the proportion of B10 cells was an independent prognostic indicator for CRC patients. CONCLUSION Our results indicate that the proportion of circulating B10 cells is an independent prognostic factor for patients with CRC and thus may help guide the clinical decision in CRC.
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Affiliation(s)
- Zhaoyan Qiu
- Department of General Surgery, the First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Qian Li
- Department of Engineering Physics, Tsinghua University, Beijing, China
| | - Yixun Lu
- Department of General Surgery, the First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Qian Wang
- Department of Anorectal Surgery, First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
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28
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Jiao J, He S, Wang Y, Lu Y, Gu M, Li D, Tang T, Nie S, Zhang M, Lv B, Li J, Xia N, Cheng X. Regulatory B cells improve ventricular remodeling after myocardial infarction by modulating monocyte migration. Basic Res Cardiol 2021; 116:46. [PMID: 34302556 PMCID: PMC8310480 DOI: 10.1007/s00395-021-00886-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 07/12/2021] [Indexed: 01/06/2023]
Abstract
Overactivated inflammatory responses contribute to adverse ventricular remodeling after myocardial infarction (MI). Regulatory B cells (Bregs) are a newly discovered subset of B cells with immunomodulatory roles in many immune and inflammation-related diseases. Our study aims to determine whether the expansion of Bregs exerts a beneficial effect on ventricular remodeling and explore the mechanisms involved. Here, we showed that adoptive transfer of Bregs ameliorated ventricular remodeling in a murine MI model, as demonstrated by improved cardiac function, decreased scar size and attenuated interstitial fibrosis without changing the survival rate. Reduced Ly6Chi monocyte infiltration was found in the hearts of the Breg-transferred mice, while the infiltration of Ly6Clo monocytes was not affected. In addition, the replenishment of Bregs had no effect on the myocardial accumulation of T cells or neutrophils. Mechanistically, Bregs reduced the expression of C-C motif chemokine receptor 2 (CCR2) in monocytes, which inhibited proinflammatory monocyte recruitment to the heart from the peripheral blood and mobilization from the bone marrow. Breg-mediated protection against MI was abrogated by treatment with an interleukin 10 (IL-10) antibody. Finally, IL-10 neutralization reversed the effect of Bregs on monocyte migration and CCR2 expression. The present study suggests a therapeutic value of Bregs in limiting ventricular remodeling after MI through decreasing CCR2-mediated monocyte recruitment and mobilization.
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Affiliation(s)
- Jiao Jiao
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shujie He
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yiqiu Wang
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yuzhi Lu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Muyang Gu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Dan Li
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tingting Tang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shaofang Nie
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Min Zhang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Bingjie Lv
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jingyong Li
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ni Xia
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. .,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Xiang Cheng
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. .,Key Laboratory for Biological Targeted Therapy of Education Ministry and Hubei Province, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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29
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Schmitz R, Fitch ZW, Schroder PM, Choi AY, Jackson AM, Knechtle SJ, Kwun J. B cells in transplant tolerance and rejection: friends or foes? Transpl Int 2021; 33:30-40. [PMID: 31705678 DOI: 10.1111/tri.13549] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/21/2019] [Accepted: 11/04/2019] [Indexed: 12/14/2022]
Abstract
Our understanding of the role of B cells in organ transplantation remains incomplete and continues to grow. The majority of research has focused on the detrimental role of antibodies that drive the development of pathogenesis of the transplanted organ. However, it has been shown that not all donor-specific antibodies are harmful and in some circumstances can even promote tolerance through the mechanism of accommodation. Furthermore, B cells can have effects on transplanted organs through their interaction with T cells, namely antigen presentation, cytokine production, and costimulation. More recently, the role and importance of Bregs was introduced to the field of transplantation. Due to this functional and ontogenetic heterogeneity, targeting B cells in transplantation may bring undesired immunologic side effects including increased rejection. Therefore, the selective control of B cells that contribute to the humoral response against donor antigens will continue to be an important and challenging area of research and potentially lead to improved long-term transplant outcomes.
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Affiliation(s)
- Robin Schmitz
- Department of Surgery, Duke Transplant Center, Duke University Medical Center, Durham, NC, USA
| | - Zachary W Fitch
- Department of Surgery, Duke Transplant Center, Duke University Medical Center, Durham, NC, USA
| | - Paul M Schroder
- Department of Surgery, Duke Transplant Center, Duke University Medical Center, Durham, NC, USA
| | - Ashley Y Choi
- Department of Surgery, Duke Transplant Center, Duke University Medical Center, Durham, NC, USA
| | - Annette M Jackson
- Department of Surgery, Duke Transplant Center, Duke University Medical Center, Durham, NC, USA
| | - Stuart J Knechtle
- Department of Surgery, Duke Transplant Center, Duke University Medical Center, Durham, NC, USA
| | - Jean Kwun
- Department of Surgery, Duke Transplant Center, Duke University Medical Center, Durham, NC, USA
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30
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Benecke L, Coray M, Umbricht S, Chiang D, Figueiró F, Muller L. Exosomes: Small EVs with Large Immunomodulatory Effect in Glioblastoma. Int J Mol Sci 2021; 22:ijms22073600. [PMID: 33808435 PMCID: PMC8036988 DOI: 10.3390/ijms22073600] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022] Open
Abstract
Glioblastomas are among the most aggressive tumors, and with low survival rates. They are characterized by the ability to create a highly immunosuppressive tumor microenvironment. Exosomes, small extracellular vesicles (EVs), mediate intercellular communication in the tumor microenvironment by transporting various biomolecules (RNA, DNA, proteins, and lipids), therefore playing a prominent role in tumor proliferation, differentiation, metastasis, and resistance to chemotherapy or radiation. Exosomes are found in all body fluids and can cross the blood–brain barrier due to their nanoscale size. Recent studies have highlighted the multiple influences of tumor-derived exosomes on immune cells. Owing to their structural and functional properties, exosomes can be an important instrument for gaining a better molecular understanding of tumors. Furthermore, they qualify not only as diagnostic and prognostic markers, but also as tools in therapies specifically targeting aggressive tumor cells, like glioblastomas.
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Affiliation(s)
- Laura Benecke
- Department of Biomedicine, University of Basel, 4051 Basel, Switzerland; (L.B.); (M.C.); (D.C.)
- Department of Otolaryngology and Head & Neck Surgery, University Hospital Basel, 4051 Basel, Switzerland
| | - Mali Coray
- Department of Biomedicine, University of Basel, 4051 Basel, Switzerland; (L.B.); (M.C.); (D.C.)
| | - Sandra Umbricht
- Faculty of Medicine, University of Basel, 4051 Basel, Switzerland;
| | - Dapi Chiang
- Department of Biomedicine, University of Basel, 4051 Basel, Switzerland; (L.B.); (M.C.); (D.C.)
| | - Fabrício Figueiró
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90035-003, Brazil;
| | - Laurent Muller
- Department of Biomedicine, University of Basel, 4051 Basel, Switzerland; (L.B.); (M.C.); (D.C.)
- Department of Otolaryngology and Head & Neck Surgery, University Hospital Basel, 4051 Basel, Switzerland
- Correspondence: ; Tel.: +41-61-556-5141
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31
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Martins C, Lima J, Cambridge G, Ângelo-Dias M, Leandro M, Miguel Borrego L. Serum markers of B-cell activation in pregnant women with atopic asthma. Am J Reprod Immunol 2021; 86:e13414. [PMID: 33682259 PMCID: PMC8365761 DOI: 10.1111/aji.13414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 03/02/2021] [Indexed: 11/28/2022] Open
Abstract
PROBLEM As maternal atopy represents a risk factor for the development of atopy in offspring, we aimed to assess how pregnancy affects B-cell activation markers in women with atopic asthma and whether they correlate with risk manifestations for allergy in newborns from mothers with atopic asthma. METHOD OF STUDY Pregnant women with atopic asthma (AP) in the third trimester of gestation and nonpregnant women with atopic asthma (ANP) were prospectively recruited and compared to respective healthy counterparts (HP and HNP). All pregnant women were also assessed during the postpartum period until 6 weeks after delivery (HP/PP and AP/PP). Newborns were clinically evaluated at the age of 6 months. Peripheral blood samples were taken from each woman at each time point. Soluble CD23 (sCD23), B-cell activating factor (BAFF), IgA, IgG, IgM, kappa (κ), and lambda (λ) free light chains (FLC) were quantified in serum samples. RESULTS The AP group presented increased sCD23 (p < 0.05) and BAFF (p < 0.001) levels compared to the ANP group and even higher levels of sCD23 during the postpartum period (p < 0.001). Moreover, the cutoffs of 6.74 g/L for IgG (sensitivity 90.9%, specificity 77.8%) and of 11.30 mg/L for λ FLC (sensitivity 81.8%, specificity 88.9%) in the AP group were predictive factors for the manifestation of allergy in their offspring. CONCLUSIONS After delivery, the dynamics of sCD23 and BAFF changed significantly in the AP group. Furthermore, we found novel predictive factors for allergy manifestations in the children of these women, with potential clinical application.
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Affiliation(s)
- Catarina Martins
- CEDOC, NOVA Medical School, Nova University of Lisbon. Campo dos Mártires da Pátria, Lisbon, Portugal.,Comprehensive Health Research Centre (CHRC), NOVA Medical School, Nova University of Lisbon, Lisbon, Portugal
| | - Jorge Lima
- CEDOC, NOVA Medical School, Nova University of Lisbon. Campo dos Mártires da Pátria, Lisbon, Portugal.,Comprehensive Health Research Centre (CHRC), NOVA Medical School, Nova University of Lisbon, Lisbon, Portugal.,Department of Obstetrics and Gynecology, CUF Descobertas Hospital, Lisbon, Portugal
| | - Geraldine Cambridge
- Centre for Rheumatology and Bloomsbury Rheumatology Unit, Division of Medicine, University College London, London, UK
| | - Miguel Ângelo-Dias
- CEDOC, NOVA Medical School, Nova University of Lisbon. Campo dos Mártires da Pátria, Lisbon, Portugal.,Comprehensive Health Research Centre (CHRC), NOVA Medical School, Nova University of Lisbon, Lisbon, Portugal
| | - Maria Leandro
- Centre for Rheumatology and Bloomsbury Rheumatology Unit, Division of Medicine, University College London, London, UK
| | - Luís Miguel Borrego
- CEDOC, NOVA Medical School, Nova University of Lisbon. Campo dos Mártires da Pátria, Lisbon, Portugal.,Comprehensive Health Research Centre (CHRC), NOVA Medical School, Nova University of Lisbon, Lisbon, Portugal.,Department of Imunoallergy, LUZ SAÚDE, Hospital da Luz, Lisbon, Portugal
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32
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Ticha O, Slanina P, Moos L, Stichova J, Vlkova M, Bekeredjian-Ding I. TNFR2 expression is a hallmark of human memory B cells with suppressive function. Eur J Immunol 2021; 51:1195-1205. [PMID: 33609401 DOI: 10.1002/eji.202048988] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/18/2020] [Accepted: 02/18/2021] [Indexed: 02/03/2023]
Abstract
Tumor Necrosis Factor Receptor 2 (TNFR2) expression is increasingly being linked to tolerogenic immune reactions and cells with suppressor function including a subset of T-regulatory cells. B-regulatory cells play an important role in control of T-cell responses and inflammation. Recently, we described TNFR2 as a marker for IL-10-producing B cells, a hallmark of this cell subset. Here, we demonstrate that proliferation of T cells is reduced in the presence of TNFR2 positive human memory B cells generated with TLR9 ligand, while TNFR2- and TNFR2+CD27- B cells display costimulatory activity. Our data further reveal that IL-10 secretion is characteristic of IgM+ naïve and memory B cells but suppressive activity is not restricted to IL-10: (i) the inhibitory effect of TNFR2+ switched memory B cells was comparable to that exerted by TNFR2+ IgM+ memory B cells although IL-10 secretion levels in the cocultures were lower; (ii) supernatants from TNFR2+ memory B cells failed to suppress T-cell proliferation. Based on our findings, we propose that formation of Breg is a specific characteristic of human memory B cells undergoing terminal differentiation. Our data further corroborate that TNFR2 represents a viable marker for identification of memory B cells with regulatory function.
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Affiliation(s)
- Olga Ticha
- Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany
| | - Peter Slanina
- Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany.,Department of Clinical Immunology and Allergology, St. Anne's Faculty Hospital, Masaryk University, Brno, Czech Republic
| | - Lukas Moos
- Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany
| | - Julie Stichova
- Department of Clinical Immunology and Allergology, St. Anne's Faculty Hospital, Masaryk University, Brno, Czech Republic
| | - Marcela Vlkova
- Department of Clinical Immunology and Allergology, St. Anne's Faculty Hospital, Masaryk University, Brno, Czech Republic
| | - Isabelle Bekeredjian-Ding
- Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany.,Institute of Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
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33
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Xiang W, Xie C, Guan Y. The identification, development and therapeutic potential of IL-10-producing regulatory B cells in multiple sclerosis. J Neuroimmunol 2021; 354:577520. [PMID: 33684831 DOI: 10.1016/j.jneuroim.2021.577520] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 01/27/2021] [Accepted: 02/09/2021] [Indexed: 12/12/2022]
Abstract
Regulatory B cells are a rare B-cell subset widely known to exert their immunosuppressive function via the production of interleukin-10 (IL-10) and other mechanisms. B10 cells are a special subset of regulatory B cells with immunoregulatory function that is fully attributed to IL-10. Their unique roles in the animal model of multiple sclerosis (MS) have been described, as well as their relevance in MS patients. This review specifically focuses on the identification and development of B10 cells, the signals that promote IL-10 production in B cells, the roles of B10 cells in MS, and the potential and major challenges of the application of B10-based therapies for MS.
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Affiliation(s)
- Weiwei Xiang
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160 Pujian Rd, Shanghai 200127, China
| | - Chong Xie
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160 Pujian Rd, Shanghai 200127, China
| | - Yangtai Guan
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160 Pujian Rd, Shanghai 200127, China.
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34
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Sha S, Pearson JA, Peng J, Hu Y, Huang J, Xing Y, Zhang L, Zhu Y, Zhao H, Wong FS, Chen L, Wen L. TLR9 Deficiency in B Cells Promotes Immune Tolerance via Interleukin-10 in a Type 1 Diabetes Mouse Model. Diabetes 2021; 70:504-515. [PMID: 33154070 PMCID: PMC7881860 DOI: 10.2337/db20-0373] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 11/01/2020] [Indexed: 12/22/2022]
Abstract
Toll-like receptor 9 (TLR9) is highly expressed in B cells, and B cells are important in the pathogenesis of type 1 diabetes (T1D) development. However, the intrinsic effect of TLR9 in B cells on β-cell autoimmunity is not known. To fill this knowledge gap, we generated NOD mice with a B-cell-specific deficiency of TLR9 (TLR9fl/fl/CD19-Cre+ NOD). The B-cell-specific deletion of TLR9 resulted in near-complete protection from T1D development. Diabetes protection was accompanied by an increased proportion of interleukin-10 (IL-10)-producing B cells. We also found that TLR9-deficient B cells were hyporesponsive to both innate and adaptive immune stimuli. This suggested that TLR9 in B cells modulates T1D susceptibility in NOD mice by changing the frequency and function of IL-10-producing B cells. Molecular analysis revealed a network of TLR9 with matrix metalloproteinases, tissue inhibitor of metalloproteinase-1, and CD40, all of which are interconnected with IL-10. Our study has highlighted an important connection of an innate immune molecule in B cells to the immunopathogenesis of T1D. Thus, targeting the TLR9 pathway, specifically in B cells, may provide a novel therapeutic strategy for T1D treatment.
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Affiliation(s)
- Sha Sha
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
- Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, Shandong, China
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT
| | - James A Pearson
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT
| | - Jian Peng
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT
| | - Youjia Hu
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT
| | - Juan Huang
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT
| | - Yanpeng Xing
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT
- Department of Gastrointestinal Surgery, First Hospital of Jilin University, Changchun, Jilin, China
| | - Luyao Zhang
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT
- Department of Gastrointestinal Surgery, First Hospital of Jilin University, Changchun, Jilin, China
| | - Ying Zhu
- Department of Biostatistics, School of Public Health, Yale University, New Haven, CT
| | - Hongyu Zhao
- Department of Biostatistics, School of Public Health, Yale University, New Haven, CT
| | - F Susan Wong
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, U.K
| | - Li Chen
- Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, Shandong, China
| | - Li Wen
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT
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35
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Wu X, Zhu D, Tian J, Tang X, Guo H, Ma J, Xu H, Wang S. Granulocytic Myeloid-Derived Suppressor Cell Exosomal Prostaglandin E2 Ameliorates Collagen-Induced Arthritis by Enhancing IL-10 + B Cells. Front Immunol 2020; 11:588500. [PMID: 33329572 PMCID: PMC7734343 DOI: 10.3389/fimmu.2020.588500] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/02/2020] [Indexed: 01/22/2023] Open
Abstract
The results of recent studies have shown that granulocytic-myeloid derived suppressor cells (G-MDSCs) can secrete exosomes that transport various biologically active molecules with regulatory effects on immune cells. However, their roles in autoimmune diseases such as rheumatoid arthritis remain to be further elucidated. In the present study, we investigated the influence of exosomes from G-MDSCs on the humoral immune response in murine collagen-induced arthritis (CIA). G-MDSCs exosomes-treated mice showed lower arthritis index values and decreased inflammatory cell infiltration. Treatment with G-MDSCs exosomes promoted splenic B cells to secrete IL-10 both in vivo and in vitro. In addition, a decrease in the proportion of plasma cells and follicular helper T cells was observed in drainage lymph nodes from G-MDSCs exosomes-treated mice. Moreover, lower serum levels of IgG were detected in G-MDSCs exosomes-treated mice, indicating an alteration of the humoral environment. Mechanistic studies showed that exosomal prostaglandin E2 (PGE2) produced by G-MDSCs upregulated the phosphorylation levels of GSK-3β and CREB, which play a key role in the production of IL-10+ B cells. Taken together, our findings demonstrated that G-MDSC exosomal PGE2 attenuates CIA in mice by promoting the generation of IL-10+ Breg cells.
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Affiliation(s)
- Xinyu Wu
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.,Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Dongwei Zhu
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.,Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jie Tian
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xinyi Tang
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China
| | - Hongye Guo
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jie Ma
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Huaxi Xu
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Shengjun Wang
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.,Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
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36
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Conejo-Garcia JR, Biswas S, Chaurio R. Humoral immune responses: Unsung heroes of the war on cancer. Semin Immunol 2020; 49:101419. [PMID: 33183950 DOI: 10.1016/j.smim.2020.101419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/23/2020] [Accepted: 10/30/2020] [Indexed: 02/07/2023]
Abstract
Solid cancers progress from primordial lesions through complex interactions between tumor-promoting and anti-tumor immune cell types, ultimately leading to the orchestration of humoral and T cell adaptive immune responses, albeit in an immunosuppressive environment. B cells infiltrating most established tumors have been associated with a dual role: Some studies have associated antibodies produced by tumor-associated B cells with the promotion of regulatory activities on myeloid cells, and also with direct immunosuppression through the production of IL-10, IL-35 or TGF-β. In contrast, recent studies in multiple human malignancies identify B cell responses with delayed malignant progression and coordinated T cell protective responses. This includes the elusive role of Tertiary Lymphoid Structures identified in many human tumors, where the function of B cells remains unknown. Here, we discuss emerging data on the dual role of B cell responses in the pathophysiology of human cancer, providing a perspective on future directions and possible novel interventions to restore the coordinated action of both branches of the adaptive immune response, with the goal of maximizing immunotherapeutic effectiveness.
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Affiliation(s)
- Jose R Conejo-Garcia
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA.
| | - Subir Biswas
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - Ricardo Chaurio
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
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37
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Beckett J, Hester J, Issa F, Shankar S. Regulatory B cells in transplantation: roadmaps to clinic. Transpl Int 2020; 33:1353-1368. [PMID: 32725703 DOI: 10.1111/tri.13706] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/08/2020] [Accepted: 07/23/2020] [Indexed: 12/16/2022]
Abstract
Over the last two decades, an additional and important role for B cells has been established in immune regulation. Preclinical studies demonstrate that regulatory B cells (Breg) can prolong allograft survival in animal models and induce regulatory T cells. Operationally tolerant human kidney transplant recipients demonstrate B-cell-associated gene signatures of immune tolerance, and novel therapeutic agents can induce Bregs in phase I clinical trials in transplantation. Our rapidly expanding appreciation of this novel B-cell subtype has made the road to clinical application a reality. Here, we outline several translational pathways by which Bregs could soon be introduced to the transplant clinic.
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Affiliation(s)
- Joseph Beckett
- Transplant Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Joanna Hester
- Transplant Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Fadi Issa
- Transplant Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Sushma Shankar
- Transplant Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
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38
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Baba Y, Saito Y, Kotetsu Y. Heterogeneous subsets of B-lineage regulatory cells (Breg cells). Int Immunol 2020; 32:155-162. [PMID: 31630184 DOI: 10.1093/intimm/dxz068] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 10/16/2019] [Indexed: 12/18/2022] Open
Abstract
B cells represent a key cellular component of humoral immunity. Besides antigen presentation and antibody production, B cells also play a role in immune regulation and induction of tolerance through several mechanisms. Our understanding of B-lineage cells with regulatory ability has been revolutionized by the delineation of heterogeneous subsets of these cells. Specific environmental signals may further determine the polarization and function of B-lineage regulatory cells. With the availability of new genetic, molecular and pharmacological tools, considerable advances have been made toward our understanding of the surface phenotype, developmental processes and functions of these cells. These exciting discoveries, some of which are still controversial, also raise many new questions, which makes the inhibitory function of B cells a rapidly growing field in immunopathology. Here we review highlights of the regulatory activity of B cells and the recent advances in the function and phenotype of these B-cell subsets in healthy and diseased states.
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Affiliation(s)
- Yoshihiro Baba
- Division of Immunology and Genome Biology, Department of Molecular Genetics, Medical Institute of Bioregulation, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Yuichi Saito
- Division of Immunology and Genome Biology, Department of Molecular Genetics, Medical Institute of Bioregulation, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Yasuaki Kotetsu
- Division of Immunology and Genome Biology, Department of Molecular Genetics, Medical Institute of Bioregulation, Kyushu University, Higashi-ku, Fukuoka, Japan
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39
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Cencioni MT, Ali R, Nicholas R, Muraro PA. Defective CD19+CD24hiCD38hi transitional B-cell function in patients with relapsing-remitting MS. Mult Scler 2020; 27:1187-1197. [DOI: 10.1177/1352458520951536] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background: Multiple sclerosis (MS) is characterized by central nervous system (CNS) infiltration of T and B cells, excess inflammatory cytokine and chemokine production and failure of immune regulation. CD19+CD24hiCD38hi transitional B cells producing interleukin (IL)-10 have been shown to suppress interferon-γ (IFNγ) and tumour necrosis factor-α (TNFα) production by CD4+ T cells and to be dysfunctional in autoimmune arthritis and systemic lupus erythematosus. Objective: We hypothesized that transitional B-cell-dependent immune regulation could be defective in MS and examined their function in healthy subjects and patients with relapsing-remitting multiple sclerosis (RRMS). Methods: A total of 62 healthy donors and 21 RRMS subjects donated peripheral blood for the study. IL-10-producing B cells, IFNγ and TNFα-producing T cells and proliferating T cells were quantified by flow cytometry. Results: In healthy individuals, CD19+CD24hiCD38hi transitional B cells produce more IL-10 than CD19+CD24+CD38+ naive and CD19+CD24hiCD38− memory B cells and are able to suppress CD4+ T-cell proliferation and IFNγ and TNFα-production. In subjects with RRMS, CD19+CD24hiCD38hi transitional B cells produce significantly less IL-10 and to fail to suppress effector T-cell function. Conclusion: CD19+CD24hiCD38hi transitional B cells physiologically represent the most potent regulatory B-cell subset and are functionally defective in patients with RRMS, an abnormality that may contribute to the immune pathological process.
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Affiliation(s)
- Maria T Cencioni
- Department of Brain Sciences, Imperial College London, London, UK
| | - Rehiana Ali
- Department of Brain Sciences, Imperial College London, London, UK
| | - Richard Nicholas
- Department of Brain Sciences, Imperial College London, London, UK/Imperial College Healthcare NHS Trust, London, UK
| | - Paolo A Muraro
- Wolfson Neuroscience Laboratory, Department of Brain Sciences, Imperial College London, London, UK
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40
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Liu J, Liu Q, Chen X. The Immunomodulatory Effects of Mesenchymal Stem Cells on Regulatory B Cells. Front Immunol 2020; 11:1843. [PMID: 32922398 PMCID: PMC7456948 DOI: 10.3389/fimmu.2020.01843] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/09/2020] [Indexed: 12/16/2022] Open
Abstract
The therapeutic potential of mesenchymal stem cells (MSCs) has been investigated in many preclinical and clinical studies. This potential is dominantly based on the immunosuppressive properties of MSCs. Although the therapeutic profiles of MSC transplantation are still not fully characterized, accumulating evidence has revealed that B cells change after MSC infusion, in particular inducing regulatory B cells (Bregs). The immunosuppressive effects of Bregs have been demonstrated, and these cells are being evaluated as new targets for the treatment of inflammatory diseases. MSCs are capable of educating B cells and inducing regulatory B cell production via cell-to-cell contact, soluble factors, and extracellular vesicles (EVs). These cells thus have the potential to complement each other's immunomodulatory functions, and a combined approach may enable synergistic effects for the treatment of immunological diseases. However, compared with investigations regarding other immune cells, investigations into how MSCs specifically regulate Bregs have been superficial and insufficient. In this review, we discuss the current findings related to the immunomodulatory effects of MSCs on regulatory B cells and provide optimal strategies for applications in immune-related disease treatments.
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Affiliation(s)
- Jialing Liu
- The Biotherapy Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qiuli Liu
- The Biotherapy Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaoyong Chen
- The Biotherapy Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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41
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Single-cell mass cytometry on peripheral blood identifies immune cell subsets associated with primary biliary cholangitis. Sci Rep 2020; 10:12584. [PMID: 32724082 PMCID: PMC7387528 DOI: 10.1038/s41598-020-69358-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 07/07/2020] [Indexed: 02/08/2023] Open
Abstract
The relationship between primary biliary cholangitis (PBC), a chronic cholestatic autoimmune liver disease, and the peripheral immune system remains to be fully understood. Herein, we performed the first mass cytometry (CyTOF)-based, immunophenotyping analysis of the peripheral immune system in PBC at single-cell resolution. CyTOF was performed on peripheral blood mononuclear cells (PBMCs) from PBC patients (n = 33) and age-/sex-matched healthy controls (n = 33) to obtain immune cell abundance and marker expression profiles. Hierarchical clustering methods were applied to identify immune cell types and subsets significantly associated with PBC. Subsets of gamma-delta T cells (CD3+TCRgd+), CD8+ T cells (CD3+CD8+CD161+PD1+), and memory B cells (CD3−CD19+CD20+CD24+CD27+) were found to have lower abundance in PBC than in control. In contrast, higher abundance of subsets of monocytes and naïve B cells were observed in PBC compared to control. Furthermore, several naïve B cell (CD3−CD19+CD20+CD24−CD27−) subsets were significantly higher in PBC patients with cirrhosis (indicative of late-stage disease) than in those without cirrhosis. Alternatively, subsets of memory B cells were lower in abundance in cirrhotic relative to non-cirrhotic PBC patients. Future immunophenotyping investigations could lead to better understanding of PBC pathogenesis and progression, and also to the discovery of novel biomarkers and treatment strategies.
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42
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Chodisetti SB, Fike AJ, Domeier PP, Choi NM, Soni C, Rahman ZSM. TLR7 Negatively Regulates B10 Cells Predominantly in an IFNγ Signaling Dependent Manner. Front Immunol 2020; 11:1632. [PMID: 32849556 PMCID: PMC7399053 DOI: 10.3389/fimmu.2020.01632] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 06/18/2020] [Indexed: 01/12/2023] Open
Abstract
IL-10 producing B cells (B10 cells) play an important immunoregulatory role in various autoimmune and infection conditions. However, the factors that regulate their development and maintenance are incompletely understood. Recently, we and others have established a requirement for TLR7 in promoting autoimmune antibody forming cell (AFC) and germinal center (GC) responses. Here we report an important additional role of TLR7 in the negative regulation of B10 cell development. TLR7 overexpression or overstimulation promoted the reduction of B10 cells whereas TLR7 deficiency rescued these cells in both non-autoimmune and autoimmune-prone mice. TLR7 expression was further inversely correlated with B cell-dependent IL-10 production and its inhibition of CD4 T cell proliferation and IFNγ production in an in vitro B cell and T cell co-culture system. Further, B10 cells displayed elevated TLR7, IFNγR, and STAT1 expression compared to non-B10 cells. Interestingly, deficiency of IFNγR in TLR7 overexpressing lupus-prone mice rescued B10 cells from TLR7-mediated reduction. Finally, B cell intrinsic deletion of IFNγR was sufficient to restore B10 cells in the spleens of TLR7-promoted autoimmune mouse model. In conclusion, our findings demonstrate a novel role for the IFNγR-STAT1 pathway in TLR7-mediated negative regulation of B10 cell development.
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Affiliation(s)
- Sathi Babu Chodisetti
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Adam J Fike
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Phillip P Domeier
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Nicholas M Choi
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Chetna Soni
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Ziaur S M Rahman
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, PA, United States
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43
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Worrell JC, O'Reilly S. Bi-directional communication: Conversations between fibroblasts and immune cells in systemic sclerosis. J Autoimmun 2020; 113:102526. [PMID: 32713676 DOI: 10.1016/j.jaut.2020.102526] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 02/09/2023]
Abstract
Systemic Sclerosis (SSc) is an autoimmune idiopathic connective tissue disease, characterized by aberrant fibro-proliferative and inflammatory responses, causing fibrosis of multiple organs. In recent years the interactions between innate and adaptive immune cells with resident fibroblasts have been uncovered. Cross-talk between immune and stromal cells mediates activation of stromal cells to myofibroblasts; key cells in the pathophysiology of fibrosis. These cells and their cytokines appear to mediate their effects in both a paracrine and autocrine fashion. This review examines the role of innate and adaptive immune cells in SSc, focusing on recent advances that have illuminated our understanding of ongoing bi-directional communication between immune and stromal cells. Finally, we appraise current and future therapies and how these may be useful in a disease that currently has no specific disease modifying treatment.
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Affiliation(s)
- Julie C Worrell
- Insititute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Steven O'Reilly
- Durham University, Biosciences, Faculty of Science, Durham, UK. steven.o'
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44
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Altered Regulatory B Cell Subsets in Children with Type 1 Diabetes Mellitus. J Immunol Res 2020; 2020:8935694. [PMID: 32775471 PMCID: PMC7391103 DOI: 10.1155/2020/8935694] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/24/2020] [Accepted: 07/04/2020] [Indexed: 12/12/2022] Open
Abstract
B regulatory cells (Breg) refer to characteristic subsets of B cells that generally exert anti-inflammatory functions and maintain peripheral tolerance mainly through their ability to secrete interleukin-10 (IL10). Dysregulation in the function of Breg cells was reported in several autoimmune diseases. However, the relation between Breg and children with type 1 diabetes (T1D) is poorly understood. Thus, this study is aimed at determining whether Breg cells play a role in T1D in children or not, so we hypothesized that an altered phenotype of B cell subsets is associated with T1D in children. Children with T1D (n = 29) and control children with normal blood glucose levels (n = 14) were recruited. The percentages of different circulating IL10-producing Breg subsets, including B10, immature transitional, and plasmablasts were determined using flow cytometry analysis. Furthermore, the association between different IL10-producing B cells and patient parameters was investigated. The percentage of circulating IL10+CD24hiCD27+ (B10) and IL10+CD24hiCD38hi (immature transitional) subsets of Breg cells was significantly lower in T1D patients than in healthy controls. Moreover, these cells were also negatively correlated with fasting blood glucose and HbA1c levels. Breg cells did not correlate with autoantibody levels in the serum. These findings suggest that certain Breg subsets are numerically deficient in children with T1D. This alteration in frequency is associated with deficient islet function and glycemia. These findings suggest that Breg cells may be involved in the loss of auto-tolerance and consequent destruction of pancreatic cells and could, therefore, be a potential target for immunotherapy.
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Bibby JA, Purvis HA, Hayday T, Chandra A, Okkenhaug K, Rosenzweig S, Aksentijevich I, Wood M, Lachmann HJ, Kemper C, Cope AP, Perucha E. Cholesterol metabolism drives regulatory B cell IL-10 through provision of geranylgeranyl pyrophosphate. Nat Commun 2020; 11:3412. [PMID: 32641742 PMCID: PMC7343868 DOI: 10.1038/s41467-020-17179-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 06/04/2020] [Indexed: 02/07/2023] Open
Abstract
Regulatory B cells restrict immune and inflammatory responses across a number of contexts. This capacity is mediated primarily through the production of IL-10. Here we demonstrate that the induction of a regulatory program in human B cells is dependent on a metabolic priming event driven by cholesterol metabolism. Synthesis of the metabolic intermediate geranylgeranyl pyrophosphate (GGPP) is required to specifically drive IL-10 production, and to attenuate Th1 responses. Furthermore, GGPP-dependent protein modifications control signaling through PI3Kδ-AKT-GSK3, which in turn promote BLIMP1-dependent IL-10 production. Inherited gene mutations in cholesterol metabolism result in a severe autoinflammatory syndrome termed mevalonate kinase deficiency (MKD). Consistent with our findings, B cells from MKD patients induce poor IL-10 responses and are functionally impaired. Moreover, metabolic supplementation with GGPP is able to reverse this defect. Collectively, our data define cholesterol metabolism as an integral metabolic pathway for the optimal functioning of human IL-10 producing regulatory B cells.
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Affiliation(s)
- Jack A Bibby
- Centre for Inflammation Biology and Cancer Immunology, School of Immunology and Microbial Sciences, King's College London, London, SE1 1UL, UK. .,Complement and Inflammation Research Section (CIRS), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
| | - Harriet A Purvis
- Centre for Inflammation Biology and Cancer Immunology, School of Immunology and Microbial Sciences, King's College London, London, SE1 1UL, UK
| | - Thomas Hayday
- Centre for Inflammation Biology and Cancer Immunology, School of Immunology and Microbial Sciences, King's College London, London, SE1 1UL, UK
| | - Anita Chandra
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, CB2 1QP, UK
| | - Klaus Okkenhaug
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, CB2 1QP, UK
| | - Sofia Rosenzweig
- Inflammatory Disease Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Ivona Aksentijevich
- Inflammatory Disease Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Michael Wood
- National Amyloidosis Centre, Division of Medicine, University College London and Royal Free Hospital London NHS Foundation Trust, London, NW3 2PF, UK
| | - Helen J Lachmann
- National Amyloidosis Centre, Division of Medicine, University College London and Royal Free Hospital London NHS Foundation Trust, London, NW3 2PF, UK
| | - Claudia Kemper
- Centre for Inflammation Biology and Cancer Immunology, School of Immunology and Microbial Sciences, King's College London, London, SE1 1UL, UK.,Complement and Inflammation Research Section (CIRS), National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA.,Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Andrew P Cope
- Centre for Inflammation Biology and Cancer Immunology, School of Immunology and Microbial Sciences, King's College London, London, SE1 1UL, UK. .,Centre for Rheumatic Diseases, King's College London, London, SE1 1UL, UK.
| | - Esperanza Perucha
- Centre for Inflammation Biology and Cancer Immunology, School of Immunology and Microbial Sciences, King's College London, London, SE1 1UL, UK. .,Centre for Rheumatic Diseases, King's College London, London, SE1 1UL, UK.
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46
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Valencia-Ortega J, Saucedo R, Peña-Cano MI, Hernández-Valencia M, Cruz-Durán JG. Immune tolerance at the maternal-placental interface in healthy pregnancy and pre-eclampsia. J Obstet Gynaecol Res 2020; 46:1067-1076. [PMID: 32428989 DOI: 10.1111/jog.14309] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/17/2020] [Accepted: 04/30/2020] [Indexed: 12/15/2022]
Abstract
AIM The objective of this review is to describe the immunological mechanisms which facilitate maternal tolerance at the maternal-placental interface, and to discuss how these mechanisms are disrupted in pre-eclampsia. METHODS A literature review was performed based on the analysis of papers available on PubMed. The most important and relevant studies regarding the immunological mechanisms which facilitate maternal tolerance in healthy pregnancy and pre-eclampsia are presented in this article. RESULTS The maternal-placental interface is the site where the immune tolerance begins and develops. Within the innate immunity, natural killer cells, macrophages and dendritic cells play a pivotal role in tolerance through regulation of inflammation. On the other hand, within the adaptive immunity, the correct increase of regulatory T cells is crucial for ensuring immune tolerance toward placental cells. Disturbances in maternal tolerance can lead to the appearance of pregnancy complications such as pre-eclampsia, which has a considerable impact on perinatal morbidity and mortality. CONCLUSION Our partial knowledge of immunological mechanisms involved in tolerance at the maternal-placental interface indicates that pre-eclampsia is characterized by alterations of this maternal immune tolerance, which could represent the origin of the disease.
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Affiliation(s)
- Jorge Valencia-Ortega
- Endocrine Research Unit, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Renata Saucedo
- Endocrine Research Unit, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - María I Peña-Cano
- Faculty of Chemistry, Universidad Autónoma del Estado de México, Toluca, Mexico
| | - Marcelino Hernández-Valencia
- Endocrine Research Unit, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - José G Cruz-Durán
- UMAE Hospital de Gineco-Obstetricia No. 3, Instituto Mexicano del Seguro Social, Mexico City, Mexico
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47
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Liu M, Chen HY, Luo L, Wang Y, Zhang D, Song N, Wang FB, Li Q, Zhang XL, Pan Q. Neutralization of IL-10 produced by B cells promotes protective immunity during persistent HCV infection in humanized mice. Eur J Immunol 2020; 50:1350-1361. [PMID: 32339264 DOI: 10.1002/eji.201948488] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/01/2020] [Accepted: 04/24/2020] [Indexed: 02/06/2023]
Abstract
Chronic HCV infection can lead to cirrhosis and is associated with increased mortality. Interleukin (IL)-10-producing B cells (B10 cells) are regulatory cells that suppress cellular immune responses. Here, we aimed to determine whether HCV induces B10 cells and assess the roles of the B10 cells during HCV infection. HCV-induced B10 cells were enriched in CD19hi and CD1dhi CD5+ cell populations. HCV predominantly triggered the TLR2-MyD88-NF-κB and AP-1 signaling pathways to drive IL-10 production by B cells. In a humanized murine model of persistent HCV infection, to neutralize IL-10 produced by B10 cells, mice were treated with pcCD19scFv-IL-10R, which contains the genes coding the anti-CD19 single-chain variable fragment (CD19scFv) and the extracellular domain of IL-10 receptor alpha chain (sIL-10Ra). This treatment resulted in significant reduction of B10 cells in spleen and liver, increase of cytotoxic CD8+ T-cell responses against HCV, and low viral loads in infected humanized mice. Our results indicate that targeting B10 cells via neutralization of IL-10 may offer a novel strategy to enhance anti-HCV immunotherapy.
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Affiliation(s)
- Min Liu
- Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, State Key Laboratory of Virology and Medical Research Institute, Wuhan University School of Basic Medical Sciences, Wuhan, China
| | - Han-Yu Chen
- Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, State Key Laboratory of Virology and Medical Research Institute, Wuhan University School of Basic Medical Sciences, Wuhan, China.,Department of Laboratory Medicine, Jingzhou Central Hospital, Jingzhou, Hubei Province, China
| | - Liang Luo
- Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, State Key Laboratory of Virology and Medical Research Institute, Wuhan University School of Basic Medical Sciences, Wuhan, China
| | - Yaping Wang
- Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, State Key Laboratory of Virology and Medical Research Institute, Wuhan University School of Basic Medical Sciences, Wuhan, China
| | - Dongli Zhang
- Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, State Key Laboratory of Virology and Medical Research Institute, Wuhan University School of Basic Medical Sciences, Wuhan, China
| | - Neng Song
- Department of Laboratory Medicine, Hubei Provincial Hospital of Integrated Chinese & Western Medicine, Wuhan, China
| | - Fu-Bing Wang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qiao Li
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Xiao-Lian Zhang
- Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, State Key Laboratory of Virology and Medical Research Institute, Wuhan University School of Basic Medical Sciences, Wuhan, China
| | - Qin Pan
- Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, State Key Laboratory of Virology and Medical Research Institute, Wuhan University School of Basic Medical Sciences, Wuhan, China
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48
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Gu Y, Han X. Toll-Like Receptor Signaling and Immune Regulatory Lymphocytes in Periodontal Disease. Int J Mol Sci 2020; 21:ijms21093329. [PMID: 32397173 PMCID: PMC7247565 DOI: 10.3390/ijms21093329] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 04/30/2020] [Accepted: 05/04/2020] [Indexed: 12/27/2022] Open
Abstract
Periodontitis is known to be initiated by periodontal microbiota derived from biofilm formation. The microbial dysbiotic changes in the biofilm trigger the host immune and inflammatory responses that can be both beneficial for the protection of the host from infection, and detrimental to the host, causing tissue destruction. During this process, recognition of Pathogen-Associated Molecular Patterns (PAMPs) by the host Pattern Recognition Receptors (PRRs) such as Toll-like receptors (TLRs) play an essential role in the host–microbe interaction and the subsequent innate as well as adaptive responses. If persistent, the adverse interaction triggered by the host immune response to the microorganisms associated with periodontal biofilms is a direct cause of periodontal inflammation and bone loss. A large number of T and B lymphocytes are infiltrated in the diseased gingival tissues, which can secrete inflammatory mediators and activate the osteolytic pathways, promoting periodontal inflammation and bone resorption. On the other hand, there is evidence showing that immune regulatory T and B cells are present in the diseased tissue and can be induced for the enhancement of their anti-inflammatory effects. Changes and distribution of the T/B lymphocytes phenotype seem to be a key determinant of the periodontal disease outcome, as the functional activities of these cells not only shape up the overall immune response pattern, but may directly regulate the osteoimmunological balance. Therefore, interventional strategies targeting TLR signaling and immune regulatory T/B cells may be a promising approach to rebalance the immune response and alleviate bone loss in periodontal disease. In this review, we will examine the etiological role of TLR signaling and immune cell osteoclastogenic activity in the pathogenesis of periodontitis. More importantly, the protective effects of immune regulatory lymphocytes, particularly the activation and functional role of IL-10 expressing regulatory B cells, will be discussed.
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Affiliation(s)
- Yingzhi Gu
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA;
| | - Xiaozhe Han
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA;
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA
- Correspondence:
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49
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Grän F, Kerstan A, Serfling E, Goebeler M, Muhammad K. Current Developments in the Immunology of Psoriasis. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2020; 93:97-110. [PMID: 32226340 PMCID: PMC7087066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Psoriasis is a frequent inflammatory skin disease. Fundamental research on the pathogenesis of psoriasis has substantially increased our understanding of skin immunology, which has helped to introduce innovative and highly effective therapies. Psoriasis is a largely T lymphocyte-mediated disease in which activation of innate immune cells and pathogenic T cells result in skin inflammation and hyperproliferation of keratinocytes. B cells have thus far largely been neglected regarding their role for the pathogenesis of psoriasis. However, recent data shed light on their role in inflammatory skin diseases. Interestingly, interleukin (IL)-10-producing regulatory B cells have been assumed to ameliorate psoriasis. In this review, we will discuss the development of disease, pathogenicity, and current developments in therapeutic options. We describe different roles of T cells, B cells, and cytokines for the immunopathology and disease course of psoriasis.
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Affiliation(s)
- Franziska Grän
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Andreas Kerstan
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Edgar Serfling
- Department of Molecular Pathology, Institute of Pathology, University of Würzburg, Würzburg, Germany
| | - Matthias Goebeler
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Khalid Muhammad
- Department of Molecular Pathology, Institute of Pathology, University of Würzburg, Würzburg, Germany,Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates,To whom all correspondence should be addressed: K. Muhammad, Tel: +971 3 713 6517, Fax: +971 3 713 4927;
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50
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Chong AS. B cells as antigen-presenting cells in transplantation rejection and tolerance. Cell Immunol 2020; 349:104061. [PMID: 32059816 DOI: 10.1016/j.cellimm.2020.104061] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/04/2020] [Accepted: 02/06/2020] [Indexed: 12/21/2022]
Abstract
Transplantation of fully allogeneic organs into immunocompetent recipients invariably elicits T cell and B cell responses that lead to the production of donor-specific antibodies (DSA). When immunosuppression is inadequate donor-specific T cell and B cell responses escape, leading to T cell-mediated rejection (TCMR), antibody mediated (ABMR) rejection, or mixed rejection (MR) exhibiting features of both TCMR and ABMR. Current literature suggests that ABMR is a major cause of late graft loss, and that new therapies to curtail the donor-specific humoral response are necessary. The majority of research into B cell responses elicited by allogeneic allografts in both preclinical models and clinical studies, has focused on the function of B cells as antibody-secreting cells and the pathogenic effects of DSA as mediators of ABMR. However, it has long been recognized that the DSA response to allografts is T cell-dependent, and that B cells engage in cognate interactions with T cells that provide "help" and promote B cell differentiation into antibody-secreting cells (ASCs). This review focusses the function of B cells as antigen-presenting cells (APCs) to T cells in lymphoid organs, how they may be critical APCs to T cell in the allograft, and the functional consequences of these interactions.
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Affiliation(s)
- Anita S Chong
- Section of Transplantation, Department of Surgery, University of Chicago, Chicago, IL, United States.
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