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Vlkova M, Ticha O, Nechvatalova J, Kalina T, Litzman J, Mauri C, Blair PA. Regulatory B cells in CVID patients fail to suppress multifunctional IFN-γ+TNF-α+CD4+ T cells differentiation. Clin Immunol 2015; 160:292-300. [DOI: 10.1016/j.clim.2015.06.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 06/26/2015] [Accepted: 06/28/2015] [Indexed: 01/21/2023]
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Zhao G, Moore DJ, Lee KM, Kim JI, Duff PE, O’Connor MR, Hirohashi T, Lei J, Yang M, Markmann JF, Deng S. An unexpected counter-regulatory role of IL-10 in B-lymphocyte-mediated transplantation tolerance. Am J Transplant 2010; 10:796-801. [PMID: 20199511 PMCID: PMC2934759 DOI: 10.1111/j.1600-6143.2010.03027.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Monoclonal antibody against the CD45RB protein induces stable transplantation tolerance to multiple types of allograft. We have previously established that this tolerance protocol relies on the regulatory function of B lymphocytes for its effect. B lymphocytes have also been reported to participate in immune regulation in several other settings. In most of these systems, the regulatory function of B lymphocytes depends on the production of IL-10. Therefore, we investigated the role of IL-10 in the anti-CD45RB model of B-cell-mediated transplantation tolerance. Surprisingly, using antibody-mediated neutralization of IL-10, IL-10-deficient recipients and adoptive transfer of IL-10-deficient B lymphocytes, we found that IL-10 actually counter-regulates tolerance induced by anti-CD45RB. Furthermore, neutralization of IL-10 reduced the development of chronic allograft vasculopathy compared to anti-CD45RB alone and reduced the production of graft reactive alloantibodies. These data suggest that the participation of regulatory B lymphocytes in transplantation tolerance may be distinct from how they operate in other systems. Identifying the specific B lymphocytes that mediate transplantation tolerance and defining their mechanism of action may yield new insights into the complex cellular network through which antigen-specific tolerance is established and maintained.
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Affiliation(s)
- G. Zhao
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA,Department of Surgery, Sichuan Provincial People’s Hospital & Sichuan Academy of Medical Sciences, Chengdu, Sichuan Province, China
| | - D. J. Moore
- Department of Pediatrics, Ian Burr Division of Endocrinology and Diabetes, Vanderbilt Children’s Hospital, Nashville, TN
| | - K. M. Lee
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - J. I. Kim
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - P. E. Duff
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - M. R. O’Connor
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - T. Hirohashi
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - J. Lei
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - M. Yang
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA,Department of Surgery, Sichuan Provincial People’s Hospital & Sichuan Academy of Medical Sciences, Chengdu, Sichuan Province, China
| | - J. F. Markmann
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - S. Deng
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA,Department of Surgery, Sichuan Provincial People’s Hospital & Sichuan Academy of Medical Sciences, Chengdu, Sichuan Province, China,Corresponding author: Shaoping Deng,
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Cha S, Peck AB, Humphreys-Beher MG. Progress in understanding autoimmune exocrinopathy using the non-obese diabetic mouse: an update. CRITICAL REVIEWS IN ORAL BIOLOGY AND MEDICINE : AN OFFICIAL PUBLICATION OF THE AMERICAN ASSOCIATION OF ORAL BIOLOGISTS 2007; 13:5-16. [PMID: 12097234 DOI: 10.1177/154411130201300103] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Sjögren's Syndrome (SS) is a chronic autoimmune disease characterized by histological and functional alterations of salivary and lacrimal glands that result in a severe dryness of the mouth and the eyes. The etiology of SS has remained undefined despite investigators' significant efforts to identify the mechanisms of initiation. Based on histopathology, several animal models are available--such as MRL/lpr, NZW/NZB, NFS/sld, graft vs. host, transgenic mouse expressing viral surface antigen, and the non-obese diabetic (NOD) mouse--for investigation of the etiology of SS. Biochemical and immunological similarities between human SS and autoimmune exocrinopathy (AEC) in the NOD mouse, including the loss of secretory function, establish the NOD mouse as an appropriate model to unravel the underlying pathophysiology of SS. Recently, several NOD congenic partner strains have been developed to investigate the roles of genetic intervals, cytokines, and autoantibodies in the disease pathogenesis. Studies on NOD-scid suggest that the pathogenesis of SS occurs in two phases: an asymptomatic phase, in which epithelial cells of exocrine tissues undergo dedifferentiation accompanied by elevated apoptosis; and a second phase in which autoaggression is mounted against target organ autoantigens, resulting in the activation of T- and B-cells, and the generation of autoantibodies. The presence of autoantibodies on the cell-surface signaling receptor, the muscarinic(3) receptor, in both SS patients and the NOD mice correlates with the hallmark clinical symptom of secretory dysfunction. Additionally, the NOD mouse model provides an important example of how both Th1 and Th2 cytokines, as well as non-immune genetic loci, are involved in the maintenance of and progression to the overt disease state. Ultimately, analysis of these data provides insight into potentially novel therapeutic interventions.
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Affiliation(s)
- S Cha
- Department of Oral Biology, Immunology & Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA.
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Jones OY, Steele A, Jones JM, Marikar Y, Chang Y, Feliz A, Cahill RA, Good RA. Nonmyeloablative Bone Marrow Transplantation of BXSB Lupus Mice Using Fully Matched Allogeneic Donor Cells from Green Fluorescent Protein Transgenic Mice. THE JOURNAL OF IMMUNOLOGY 2004; 172:5415-9. [PMID: 15100282 DOI: 10.4049/jimmunol.172.9.5415] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Male BXSB mice, a mouse model of systemic lupus erythematosus, were given bone marrow transplants (BMT) at 20 wk of age using MHC-matched donor cells and nonmyeloablative conditioning (550 cGy irradiation). Transplanted mice and irradiation controls were followed for a period of 20 wk. Mice transgenic for green fluorescent protein were used as donors to allow tracking of donor cells and a determination of chimerism. Radiation controls had reduced renal pathology at 10 wk posttransplant, but not at 20 wk compared with untreated mice, while nonmyeloablative BMT mice had significantly reduced pathology at both time intervals. The monocytosis characteristic of older BXSB mice was also reduced by BMT, but the treatment did not prevent production of Ab to dsDNA. A stable chimerism of 24-40% donor CD45-positive cells was achieved in spleen and bone marrow, and there was no evidence of clinical graft vs host disease. Donor cells were detected in most recipient organs, notably the thymus and renal glomeruli. The results suggest that complete depletion of mature lymphocytes or of progenitor stem cells is not required to control lupus nephritis in BXSB mice.
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Affiliation(s)
- Olcay Y Jones
- Pediatric Rheumatology, All Children's Hospital, University of South Florida, St. Petersburg, FL 33701, USA.
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