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Liu H, Zhang Y, Cao J, Li J, Liu H, Dai B, Jin L, Liao R, Fu L. Sema4D as a biomarker for Predicting rheumatoid arthritis disease activity. Clin Rheumatol 2024; 43:645-655. [PMID: 38097864 DOI: 10.1007/s10067-023-06840-0] [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: 02/10/2023] [Revised: 10/02/2023] [Accepted: 11/10/2023] [Indexed: 02/02/2024]
Abstract
OBJECTIVE The semaphorins are membrane or secreted proteins first identified in neural development. Semaphorin 4D (Sema4D) is the first family member found to have immune properties. We evaluated the potential of Sema4D as a marker for rheumatoid arthritis (RA) disease activity, singly and in combination with other known biomarkers including rheumatoid factor (RF) and C-reactive protein (CRP). METHODS Three hundred and eleven RA patients were enrolled. The patients were divided into three groups based on their disease activity in 28 joints (DAS28): mild, moderate, and severe. The healthy group included 40 healthy individuals. SerumSema4D was measured by quantitative ELISA and the specificity and sensitivity of biomarkers were evaluated by generating a receiver operating characteristic (ROC) curve to analyze their diagnostic accuracy. RESULTS Serum Sema4D levels in the moderate and severe RA groups were elevated significantly above those of the controls (P < 0.01), while levels in the mild RA and control groups did not differ significantly (P > 0.05). The Sema4D cutoff threshold was 15.7 ng/ml when the DAS28 was applied as a reference. Compared to the erythrocyte sedimentation rate (ESR and CRP, Sema4D had the highest specificity (96.8%) and area under the curve (0.80) for diagnosing RA activity. The highest specificity (100%) for the biomarker combinations was obtained when Sema4D was combined with CRP and anti-CCP, the combination of the Sema4D combined with ESR and anti-CCP had the highest sensitivity (99.35%). According to this result, a new model for jointly calculating RA activity of Sema4D,anti-CCP and CRP was constructed. Meanwhile another model is established by using the method of multivariate analysis.Model comparison results showed the the multiple regression algorithm method fitted the patients' disease activity better. CONCLUSION The serum Sema 4D level effectively reflects moderate to severe RA activity. Sema4D levels can be used together with conventional RA biomarkers to increase the diagnostic power of RA activity. The multiple regression algorithm method is promising in disease activity calculation.
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Affiliation(s)
- Huiyuan Liu
- Department of Clinical Epidemiology and Evidence-Based Medicine, the First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yuelin Zhang
- Department of Clinical Epidemiology and Evidence-Based Medicine, the First Affiliated Hospital, China Medical University, Shenyang, China
| | - Jiaming Cao
- Department of Clinical Epidemiology and Evidence-Based Medicine, the First Affiliated Hospital, China Medical University, Shenyang, China
| | - Jiahui Li
- Department of Clinical Epidemiology and Evidence-Based Medicine, the First Affiliated Hospital, China Medical University, Shenyang, China
| | - Haina Liu
- Department of Rheumatology, the First Affiliated Hospital, China Medical University, Shenyang, China
| | - Bingbing Dai
- Department of Rheumatology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian, China
| | - Lei Jin
- Department of Rheumatology, ShengJing Hospital Affiliated of China Medical University, Shenyang, China
| | - Ruobing Liao
- Department of Clinical Epidemiology and Evidence-Based Medicine, the First Affiliated Hospital, China Medical University, Shenyang, China
| | - Lingyu Fu
- Department of Clinical Epidemiology and Evidence-Based Medicine, the First Affiliated Hospital, China Medical University, Shenyang, China.
- Department of Medical Record Management Center, the First Affiliated Hospital, China Medical University, Shenyang, China.
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Eiza N, Sabag AD, Kessler O, Neufeld G, Vadasz Z. CD72-semaphorin3A axis: A new regulatory pathway in systemic lupus erythematosus. J Autoimmun 2023; 134:102960. [PMID: 36470209 DOI: 10.1016/j.jaut.2022.102960] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022]
Abstract
CD72 is a regulatory co-receptor on B cells, with a role in the pathogenesis of systemic lupus erythematosus (SLE) in both human and animal models. Semaphorin3A (sema3A) is a secreted member of the semaphorin family that can reconstruct B cells' regulatory functions by upregulating IL-10 expression and inhibiting the pro-inflammatory activity of B and T cells in autoimmune diseases. The aim of our present study was to identify a new ligand for CD72, namely sema3A, and exploring the signal transduction pathways following its ligation in B cells. We established that CD72 functions as sema3A binding and signal-transducing receptor. These functions of CD72 are independent of neuropilin-1 (NRP-1) (the known sema3A receptor). We discovered that sema3A induces the phosphorylation of CD72 on tyrosine residues and the association of CD72 with SHP-1 and SHP-2. In addition, the binding of sema3A to CD72 on B cells inhibits the phosphorylation of STAT-4 and HDAC-1 and induces the phosphorylation of p38-MAPK and PKC-theta in B-cells derived B-lymphoblastoid (BLCL) cells, and in primary B-cells isolated from either healthy donors or SLE patients. We concluded that sema3A is a functional regulatory ligand for CD72 on B cells. The sema3A-CD72 axis is a crucial regulatory pathway in the pathogenesis of autoimmune and inflammatory diseases namely SLE, and modulation of this pathway may have a potential therapeutic value for autoimmune diseases.
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Affiliation(s)
- Nasren Eiza
- The Proteomic Unit, Bnai Zion Medical Center; Haifa, 3339419, Israel; Cancer Research Center, The Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, 3525422, Israel
| | - Adi D Sabag
- The Proteomic Unit, Bnai Zion Medical Center; Haifa, 3339419, Israel
| | - Ofra Kessler
- Cancer Research Center, The Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, 3525422, Israel
| | - Gera Neufeld
- Cancer Research Center, The Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, 3525422, Israel
| | - Zahava Vadasz
- The Proteomic Unit, Bnai Zion Medical Center; Haifa, 3339419, Israel; Cancer Research Center, The Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, 3525422, Israel.
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3
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Xu J, Du J, Zhong Y, Zhang H, Zhou L, Yao Q. Blockage of CD72 reduces B cell proliferation in immune thrombocytopenic purpura, involving interleukin 1 and macrophage migration inhibitory factor secretion. Hematology 2022; 27:1196-1203. [DOI: 10.1080/16078454.2022.2140992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Jianhui Xu
- Hematology Department, Zhujiang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Jingwen Du
- Hematology Department, Zhujiang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Yuxia Zhong
- Hematology Department, Zhujiang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Honghao Zhang
- Hematology Department, Zhujiang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Lijuan Zhou
- Hematology Department, Zhujiang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Qianqian Yao
- Hematology Department, Shunde Hospital of Sourthern Medical University, Foshan, People’s Republic of China
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The emerging roles of semaphorin4D/CD100 in immunological diseases. Biochem Soc Trans 2021; 48:2875-2890. [PMID: 33258873 DOI: 10.1042/bst20200821] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/27/2020] [Accepted: 11/02/2020] [Indexed: 02/05/2023]
Abstract
In vertebrates, the semaphorin family of proteins is composed of 21 members that are divided into five subfamilies, i.e. classes 3 to 7. Semaphorins play crucial roles in regulating multiple biological processes, such as neural remodeling, tissue regeneration, cancer progression, and, especially, in immunological regulation. Semaphorin 4D (SEMA4D), also known as CD100, is an important member of the semaphorin family and was first characterized as a lymphocyte-specific marker. SEMA4D has diverse effects on immunologic processes, including immune cell proliferation, differentiation, activation, and migration, through binding to its specific membrane receptors CD72, PLXNB1, and PLXNB2. Furthermore, SEMA4D and its underlying signaling have been increasingly linked with several immunological diseases. This review focuses on the significant immunoregulatory role of SEMA4D and the associated underlying mechanisms, as well as the potential application of SEMA4D as a diagnostic marker and therapeutic target for the treatment of immunological diseases.
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Yang Y, Chen J, Tang M, Yi C, Gao W, Bai X, Li Z, Yang F. Low levels of CD72 and CD100 expression on circulating lymphocytes in immunosuppressive phase of sepsis is associated with mortality in septic patients. J Intensive Care 2020. [DOI: 10.1186/s40560-020-00486-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Abstract
Background
Despite improvements in antimicrobial therapy and supportive care, sepsis is still a major public health issue. Recently, CD100 and its receptor in the immune system CD72 were shown to play a major role in immune regulation. The purpose of this study was to investigate the expression and clinical correlations of CD72 and CD100 on circulating lymphocytes of septic patients.
Methods
In total, 24 healthy controls and 54 septic patients were enrolled in this study. Considering the focus of the current study was on the immunosuppressive phase of sepsis, blood samples of patients were collected at days 3–4 after the onset of sepsis. The levels of CD72 and CD100 expression on circulating lymphocytes were measured by flow cytometry and serum IL-6, IL-10, and immunoglobulin M levels were determined by enzyme-linked immunosorbent assay.
Results
Our results showed that the levels of CD100 expression on T cells and CD72 expression on B cells were significantly lower in septic patients. Similarly, a significant decrease in the expression levels of CD72 and CD100 was observed in non-survivors compared with survivors. In addition, the reduction of immunoglobulin M levels and lymphocyte counts were correlated with the low CD72 and CD100 expression levels. Multivariate logistic regression analysis showed that the percentage of CD100+/CD8+ T cells and CD72+/CD19+ B cells were independent predictors of 28-day mortality in septic patients. Simultaneously, the receiver operating characteristic curve analysis showed that the combination of the percentage of CD100+/CD8+ T cells and sequential organ failure assessment score had the best predictive value of mortality risk.
Conclusions
Our study demonstrated that the decrease of the levels of CD72 and CD100 expression on circulating lymphocytes after 3–4 days of sepsis had a close correlation of the 28-day mortality of septic patients. Thus, CD72 and CD100 are promising biomarkers for assessing the prognosis of patients with sepsis.
Trial registration
Peripheral blood lymphocytes analysis detects CD72 and CD100 alteration in trauma patients; ChiCTR1900026367; Registered 4 October 2019; http://www.chictr.org.cn.
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Fard D, Tamagnone L. Semaphorins in health and disease. Cytokine Growth Factor Rev 2020; 57:55-63. [PMID: 32900601 DOI: 10.1016/j.cytogfr.2020.05.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 05/12/2020] [Indexed: 11/18/2022]
Abstract
Cell-cell communication is pivotal to guide embryo development, as well as to maintain adult tissues homeostasis and control immune response. Among extracellular factors responsible for this function, are the Semaphorins, a broad family of around 20 different molecular cues conserved in evolution and widely expressed in all tissues. The signaling cascades initiated by semaphorins depend on a family of conserved receptors, called Plexins, and on several additional molecules found in the receptor complexes. Moreover, multiple intracellular pathways have been described to act downstream of semaphorins, highlighting significant diversity in the signaling cascades controlled by this family. Notably, semaphorin expression is altered in many human diseases, such as immunopathologies, neurodegenerative diseases and cancer. This underscores the importance of semaphorins as regulatory factors in the tissue microenvironment and has prompted growing interest for assessing their potential relevance in medicine. This review article surveys the main contexts in which semaphorins have been found to regulate developing and healthy adult tissues, and the signaling cascades implicated in these functions. Vis a vis, we will highlight the main pathological processes in which semaphorins are thought to have a role thereof.
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Affiliation(s)
- Damon Fard
- University of Torino School of Medicine, Torino, Italy
| | - Luca Tamagnone
- Università Cattolica del Sacro Cuore, Rome, Italy; Fondazione Policlinico Universitario "A. Gemelli", IRCCS, Rome, Italy.
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Sema4D Aggravated LPS-Induced Injury via Activation of the MAPK Signaling Pathway in ATDC5 Chondrocytes. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8691534. [PMID: 32382577 PMCID: PMC7196969 DOI: 10.1155/2020/8691534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 03/16/2020] [Accepted: 03/24/2020] [Indexed: 12/18/2022]
Abstract
Osteoarthritis (OA) is the most common chronic degenerative joint disease, and it remains the main cause of chronic disability in elderly individuals. Sema4D (semaphorin 4D) is involved in the immune system and related to bone injury, osteoporosis, osteoblast differentiation, and rheumatoid arthritis. However, the role of Sema4D in OA remains unclear. Hence, the LPS-stimulated chondrocyte cell injury model was constructed in this study to investigate the role of Sema4D in OA development. The results showed that Sema4D was increased in LPS-treated ATDC5 cells, and the knockdown of Sema4D suppressed the decline of cell viability, the increase of cell apoptosis, and the increase of IL-6, IL-1β, and TNF-α secretion in ATDC5 cells induced by LPS. Meanwhile, Sema4D overexpression aggravated the cell injury triggered by LPS, and inhibiting Plexin B1 partly abolished the effect of Sema4D overexpression on LPS-induced chondrocyte injury. Furthermore, silencing of Sema4D blocked the activation of the MAPK pathway in LPS-stimulated ATDC5 cells. Enhanced Sema4D promoted the activation of the MAPK pathway in LPS-stimulated ATDC5 cells. What is more, inhibiting the MAPK signaling pathway abolished the promoting effect of Sema4D overexpression on LPS-induced chondrocyte injury. Therefore, our study suggested that the knockdown of Sema4D protects ATDC5 cells against LPS-induced injury through inactivation of the MAPK signaling pathway via interacting with Plexin B1.
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Nishide M, Kumanogoh A. The role of semaphorins in immune responses and autoimmune rheumatic diseases. Nat Rev Rheumatol 2017; 14:19-31. [DOI: 10.1038/nrrheum.2017.201] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Müller M, Gfeller D, Coukos G, Bassani-Sternberg M. 'Hotspots' of Antigen Presentation Revealed by Human Leukocyte Antigen Ligandomics for Neoantigen Prioritization. Front Immunol 2017; 8:1367. [PMID: 29104575 PMCID: PMC5654951 DOI: 10.3389/fimmu.2017.01367] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 10/05/2017] [Indexed: 12/30/2022] Open
Abstract
The remarkable clinical efficacy of the immune checkpoint blockade therapies has motivated researchers to discover immunogenic epitopes and exploit them for personalized vaccines. Human leukocyte antigen (HLA)-binding peptides derived from processing and presentation of mutated proteins are one of the leading targets for T-cell recognition of cancer cells. Currently, most studies attempt to identify neoantigens based on predicted affinity to HLA molecules, but the performance of such prediction algorithms is rather poor for rare HLA class I alleles and for HLA class II. Direct identification of neoantigens by mass spectrometry (MS) is becoming feasible; however, it is not yet applicable to most patients and lacks sensitivity. In an attempt to capitalize on existing immunopeptidomics data and extract information that could complement HLA-binding prediction, we first compiled a large HLA class I and class II immunopeptidomics database across dozens of cell types and HLA allotypes and detected hotspots that are subsequences of proteins frequently presented. About 3% of the peptidome was detected in both class I and class II. Based on the gene ontology of their source proteins and the peptide's length, we propose that their processing may partake by the cellular class II presentation machinery. Our database captures the global nature of the in vivo peptidome averaged over many HLA alleles, and therefore, reflects the propensity of peptides to be presented on HLA complexes, which is complementary to the existing neoantigen prediction features such as binding affinity and stability or RNA abundance. We further introduce two immunopeptidomics MS-based features to guide prioritization of neoantigens: the number of peptides matching a protein in our database and the overlap of the predicted wild-type peptide with other peptides in our database. We show as a proof of concept that our immunopeptidomics MS-based features improved neoantigen prioritization by up to 50%. Overall, our work shows that, in addition to providing huge training data to improve the HLA binding prediction, immunopeptidomics also captures other aspects of the natural in vivo presentation that significantly improve prediction of clinically relevant neoantigens.
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Affiliation(s)
- Markus Müller
- Vital-IT, Swiss Institute of Bioinformatics, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - David Gfeller
- Swiss Institute of Bioinformatics, Lausanne, Switzerland.,Ludwig Cancer Research Center, University of Lausanne, Epalinges, Switzerland
| | - George Coukos
- Ludwig Cancer Research Center, University of Lausanne, Epalinges, Switzerland.,Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland
| | - Michal Bassani-Sternberg
- Ludwig Cancer Research Center, University of Lausanne, Epalinges, Switzerland.,Department of Oncology, Lausanne University Hospital, Lausanne, Switzerland
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Feinstein J, Ramkhelawon B. Netrins & Semaphorins: Novel regulators of the immune response. Biochim Biophys Acta Mol Basis Dis 2017; 1863:3183-3189. [PMID: 28918114 DOI: 10.1016/j.bbadis.2017.09.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 09/11/2017] [Accepted: 09/12/2017] [Indexed: 12/26/2022]
Abstract
Netrins and semaphorins, members of the neuronal guidance cue family, exhibit a rich biology with significant roles that extend beyond chemotactic guidance of the axons to build the neuronal patterns of the body. Screening of adult tissues and specific cellular subsets have illuminated that these proteins are also abundantly expressed under both steady state and pathological scenarios. This observation suggests that, in addition to their role in the development of the axonal tree, these proteins possess additional novel functions in adult physiopathology. Notably, a series of striking evidence has emerged in the literature describing their roles as potent regulators of both innate and adaptive immunity, providing extra dimension to our knowledge of neuronal guidance cues. In this review, we summarize the key complex roles of netrins and semaphorins outside the central nervous system (CNS) with focus on their immunomodulatory functions that impact pathophysiological conditions.
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Affiliation(s)
- Jordyn Feinstein
- Division of Vascular Surgery, Department of Surgery, New York University School of Medicine, 530 First Avenue, New York, NY 10016, USA; Department of Cell Biology, New York University School of Medicine, 530 First Avenue, New York, NY 10016, USA
| | - Bhama Ramkhelawon
- Division of Vascular Surgery, Department of Surgery, New York University School of Medicine, 530 First Avenue, New York, NY 10016, USA; Department of Cell Biology, New York University School of Medicine, 530 First Avenue, New York, NY 10016, USA.
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11
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Vadasz Z, Elbirt D, Radian S, Bezalel-Rosenberg S, Mahlab-Guri K, Toubi E, Asher I, Sthoeger Z. Low levels of the immunoregulator Semaphorin 4D (CD100) in sera of HIV patients. Clin Immunol 2017; 191:88-93. [PMID: 28917721 DOI: 10.1016/j.clim.2017.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 09/12/2017] [Accepted: 09/12/2017] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Semaphorin-4D (CD100), generated by CD4/CD8 T-cells and its receptor on B cells - CD72, play a role in immune regulation. Both have soluble forms - sCD100/sCD72. METHODS sCD100 and sCD72 levels were determined by ELISA (MyBioSource, USA). RESULTS 28 chronic HIV patients and 50 matched healthy volunteers participated in our study. Before treatment, CD4 T-cells counts were 267 ± 216 cells/mcl and viral load (VL) was 586,675 ± 1897,431 copies/ml. Two years following HAART, CD4 T-cells counts rose to 475 ± 264 cells/mcl and VL dropped to 2050 ± 10,539 copies/ml. CD8 T-cells counts were stable. sCD72 levels prior (4.13 ± 2.03 ng/ml) and following HAART (3.53 ± 2.01 ng/ml) were similar to control levels (4.51 ± 2.66 ng/ml). sCD100 levels before (40.47 ± 31.4 ng/ml) and following HAART (37.68 ± 29.44 ng/ml) were significantly lower compared to controls (99.67 ± 36.72 ng/ml) despite the significant increase in CD4 T-cells counts. CONCLUSIONS The permanent low levels of the immunoregulator sCD100 suggest a role for CD100 in the immune dysfunction and T cells exhaustion of HIV.
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Affiliation(s)
- Z Vadasz
- Allergy and Clinical Immunology Unit, Bnei-Zion Medical Center, Haifa, Israel
| | - D Elbirt
- Department of Medicine B, Allergy, Clinical Immunology and AIDS Center, Kaplan Medical Center, Rehovot, Israel
| | - S Radian
- Department of Medicine B, Allergy, Clinical Immunology and AIDS Center, Kaplan Medical Center, Rehovot, Israel
| | - S Bezalel-Rosenberg
- Department of Medicine B, Allergy, Clinical Immunology and AIDS Center, Kaplan Medical Center, Rehovot, Israel
| | - K Mahlab-Guri
- Department of Medicine B, Allergy, Clinical Immunology and AIDS Center, Kaplan Medical Center, Rehovot, Israel
| | - E Toubi
- Allergy and Clinical Immunology Unit, Bnei-Zion Medical Center, Haifa, Israel
| | - I Asher
- Department of Medicine B, Allergy, Clinical Immunology and AIDS Center, Kaplan Medical Center, Rehovot, Israel
| | - Z Sthoeger
- Department of Medicine B, Allergy, Clinical Immunology and AIDS Center, Kaplan Medical Center, Rehovot, Israel.
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Kuklina ЕМ, Nekrasova IV, Valieva YV. Involvement of Semaphorin (Sema4D) in T-Dependent Activation of B Cells. Bull Exp Biol Med 2017; 163:447-450. [PMID: 28853092 DOI: 10.1007/s10517-017-3825-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Indexed: 11/29/2022]
Abstract
The involvement of endogenous semaphorin (Sema4D) into the key stage of T-dependent differentiation of B cells, formation of plasmoblasts, was demonstrated in vitro in T/B cell co-culture under conditions of polyclonal activation of T cells. The effect of semaphorin was not associated with activation of high-affinity Sema4D receptor plexin B1, but involves lowaffinity receptor CD72. These data indicate that Sema4D-dependent signal regulates not only the initial stage of B-cell activation, proliferative response to the antigen, but also further differentiation of B cells into plasma cells.
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Affiliation(s)
- Е М Kuklina
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia.
| | - I V Nekrasova
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia
| | - Yu V Valieva
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia
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Mirakaj V, Rosenberger P. Immunomodulatory Functions of Neuronal Guidance Proteins. Trends Immunol 2017; 38:444-456. [PMID: 28438491 DOI: 10.1016/j.it.2017.03.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/28/2017] [Accepted: 03/30/2017] [Indexed: 02/07/2023]
Abstract
Neuronal guidance proteins (NGPs) were originally identified for their role during the embryonic development of the nervous system. Recent years have seen the discovery of NGP functions during immune responses. In this context, NGPs were demonstrated to control leukocyte migration and the release of cytokines during conditions of acute inflammation, such as lung injury or sepsis. However, NGPs also display potent actions in the resolution of inflammation, chronic inflammatory conditions, the development of atherosclerosis, and during ischemia followed by reperfusion. Here, we provide an overview of the current state of knowledge about the role of NGPs in the immune system and describe their immunomodulatory function.
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Affiliation(s)
- Valbona Mirakaj
- Department of Anesthesia and Intensive Care Medicine, Tübingen University Hospital, Faculty of Medicine, Eberhard-Karls University Tübingen, Hoppe-Seyler-Straße 3, 72076 Tübingen, Germany.
| | - Peter Rosenberger
- Department of Anesthesia and Intensive Care Medicine, Tübingen University Hospital, Faculty of Medicine, Eberhard-Karls University Tübingen, Hoppe-Seyler-Straße 3, 72076 Tübingen, Germany.
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Kuklina EM, Nekrasova IV. New aspects of the Seam4D-dependent control of lymphocyte activation. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2017; 473:84-88. [PMID: 28508207 DOI: 10.1134/s0012496617020028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Indexed: 06/07/2023]
Abstract
Novel targets for action of the class IV semaphorin Seam4D have been identified in the immune system. The low-affinity CD72 receptor for Seam4D was detected not only on B lymphocytes, but also in a proportion of T cells, whereas the high-affinity semaphorin receptor, plexin B1, originally considered to belong to non-immune cells, proved to be in a great proportion of intact T and B cells. Seam4D is constitutively expressed in B cells, which, along with T cells, can serve as a source of both membrane and soluble semaphorin. The results obtained make significant adjustments in understanding of Seam4D effects in lymphoid cells.
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Affiliation(s)
- E M Kuklina
- Institute of Ecology and Genetics of Microorganisms, Ural Division, Russian Academy of Sciences, Perm, Russia.
| | - I V Nekrasova
- Institute of Ecology and Genetics of Microorganisms, Ural Division, Russian Academy of Sciences, Perm, Russia
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Vadasz Z, Goldeberg Y, Halasz K, Rosner I, Valesini G, Conti F, Perricone C, Sthoeger Z, Bezalel SR, Tzioufas AG, Levin NA, Shoenfeld Y, Toubi E. Increased soluble CD72 in systemic lupus erythematosus is in association with disease activity and lupus nephritis. Clin Immunol 2016; 164:114-8. [DOI: 10.1016/j.clim.2016.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/11/2016] [Accepted: 02/12/2016] [Indexed: 10/22/2022]
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16
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Wu M, Li J, Gao Q, Ye F. The role of Sema4D/CD100 as a therapeutic target for tumor microenvironments and for autoimmune, neuroimmune and bone diseases. Expert Opin Ther Targets 2016; 20:885-901. [PMID: 26732941 DOI: 10.1517/14728222.2016.1139083] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Semaphorin 4D (Sema4D), also known as CD100, has been implicated in physiologic roles in the immune and nervous systems. However, the interaction of Sema4D with its high affinity receptor, Plexin-B1, reveals a novel role for Sema4D produced by the tumor microenvironment in tumor angiogenesis and metastasis. AREAS COVERED The ligation of Sema4D/CD100 with CD72 on immune and inflammatory cells is known to stimulate immune responses and regulation. Because CD100 and CD72 are expressed on lung immune and nonimmune cells, as well as on mast cells, the CD100/CD72 interaction plays another important role in allergic airway inflammation and mast cell functions. A better understanding of Sema4D-mediated cell signaling in physiological and pathological processes may be crucial for crafting new Sema4D-based therapeutics for human disease and tumor microenvironments. Strategies to achieve effective management through treatment with Sema4D include special siRNAs, neutralizing antibodies and knockdown. EXPERT OPINION This review focuses on the links between Sema4D and human diseases such as cancer, bone metabolism, immune responses and organ development. The current knowledge regarding the expression of Sema4D and its receptors and its functional roles is systemically reviewed to explore Sema4D as both a target and a therapeutic in human diseases.
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Affiliation(s)
- Mingfu Wu
- a Cancer Biology Research Center, Tongji Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan , China
| | - Jing Li
- a Cancer Biology Research Center, Tongji Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan , China
| | - Qinglei Gao
- a Cancer Biology Research Center, Tongji Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan , China
| | - Fei Ye
- b Department of Neurosurgery, Tongji Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan , China
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Kuklina EM, Baidina TV, Danchenko IY, Nekrasova IV. Semaforin Sema4D in the immune system in multiple sclerosis. Bull Exp Biol Med 2014; 157:234-7. [PMID: 24952493 DOI: 10.1007/s10517-014-2533-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Indexed: 11/24/2022]
Abstract
The expression of class IV semaforin Sema4D and its CD72 receptor on lymphocytes was studied in patients with multiple sclerosis. The disease was associated with an increase in Sema4D level on intact T lymphocytes and with its more intense shedding from the membrane of activated cell. Multiple sclerosis was also associated with a decrease of CD72 receptor expression by B lymphocytes. Possible contribution of Sema4D to the disease development via the direct effects in the CNS and the immunomodulatory effect, specifically, B cell activity regulation, was discussed.
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Affiliation(s)
- E M Kuklina
- Institute of Ecology and Genetics of Micro-Organisms, Ural Division of the Russian Academy of Sciences, Perm', Russia,
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Linder GE, Chuntova PD, McLelland BT, Añó L, Obodo UC, Crider NJ, Matthes DJ, García-Ojeda ME, Manilay JO, Chatterjea D. Semaphorin 4A is dynamically regulated during thymocyte development in mice. Cell Immunol 2013; 281:150-8. [PMID: 23648820 DOI: 10.1016/j.cellimm.2013.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 11/05/2012] [Accepted: 03/05/2013] [Indexed: 10/26/2022]
Abstract
Semaphorins are important regulators of peripheral T and B-cell mediated immune responses in mice and humans. Modulatory roles of semaphorins in T cell development are also being characterized. We carefully analyzed the gene expression and protein levels of semaphorins 4A, 4D, and 7A at various developmental stages of T cell maturation in the thymus of C57BL/6 mice. Sema7a was expressed at very low levels, while Sema4d was abundant at all developmental stages of mouse thymocytes. We found the most interesting pattern of gene regulation and protein localization for semaphorin 4A. Both semaphorin 4A mRNA and protein were clearly detected on the earliest progenitors and were downregulated through thymic development. SEMA4A protein also showed a distinct cortico-medullary pattern of localization. Our findings contribute to an understanding of the complex roles played by semaphorins in the network of spatially and temporally regulated cues underpinning T cell development in the thymus.
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Affiliation(s)
- Grace E Linder
- Biology Department, Macalester College, St. Paul, MN 55105, USA
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Oishi H, Tsubaki T, Miyazaki T, Ono M, Nose M, Takahashi S. A bacterial artificial chromosome transgene with polymorphic Cd72 inhibits the development of glomerulonephritis and vasculitis in MRL-Faslpr lupus mice. THE JOURNAL OF IMMUNOLOGY 2013; 190:2129-37. [PMID: 23365086 DOI: 10.4049/jimmunol.1202196] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Systemic lupus erythematosus is considered to be under the control of polygenic inheritance, developing according to the cumulative effects of susceptibility genes with polymorphic alleles; however, the mechanisms underlying the roles of polygenes based on functional and pathological genomics remain uncharacterized. In this study, we substantiate that a CD72 polymorphism in the membrane-distal extracellular domain impacts on both the development of glomerulonephritis and vasculitis in a lupus model strain of mice, MRL/MpJ-Fas(lpr), and the reactivity of BCR signal stimulation. We generated mice carrying a bacterial artificial chromosome transgene originating from C57BL/6 (B6) mice that contains the Cd72(b) locus (Cd72(B6) transgenic [tg]) or the modified Cd72(b) locus with an MRL-derived Cd72(c) allele at the polymorphic region corresponding to the membrane-distal extracellular domain (Cd72(B6/MRL) tg). Cd72(B6) tg mice, but not Cd72(B6/MRL) tg mice, showed a significant reduction in mortality following a marked improvement of disease associated with decreased serum levels of IgG3 and anti-dsDNA Abs. The number of splenic CD4(-)CD8(-) T cells in Cd72(B6) tg mice was decreased significantly in association with a reduced response to B cell receptor signaling. These results indicate that the Cd72 polymorphism affects susceptibility to lupus phenotypes and that novel functional rescue by a bacterial artificial chromosome transgenesis is an efficient approach with wide applications for conducting a genomic analysis of polygene diseases.
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Affiliation(s)
- Hisashi Oishi
- Department of Anatomy and Embryology, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba 305-8575, Japan
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21
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Vadasz Z, Toubi E. Semaphorin 3A - a marker for disease activity and a potential putative disease-modifying treatment in systemic lupus erythematosus. Lupus 2012; 21:1266-70. [PMID: 22875653 DOI: 10.1177/0961203312456753] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Semaphorin 3A (sema3A) and neuropilin-1 (NP-1) play a regulatory role in immune responses and have a demonstrated effect on the course of collagen-induced arthritis. Sema3A was also found to be involved in other immune-mediated diseases, e.g. psoriasis and allergic rhinitis. In this review we concentrated on the involvement of sema3A and NP-1 in the pathogenesis of systemic lupus erythematosus (SLE) and on the specific effect of sema3A on the auto-reactive properties of B cells in SLE patients. We demonstrated the expression of sema3A in renal biopsies from lupus glomerulonephritis patients. This expression was found to be inversely correlated with proteinuria and kidney function tests. Sema3A serum levels in SLE patients were found to be significantly lower than in RA patients (disease control) and lower yet than in normal individuals. Altered serum sema3A levels were found to be in inverse correlation with SLE disease activity, mainly with renal damage and the presence of anti-cardiolipin antibodies. The expression of both sema3A and NP-1 on B cells from SLE patients was significantly different in comparison with normal healthy individuals. Finally, we demonstrated that when sema3A was co-cultured with CpG-ODN-stimulated memory B cells of SLE patients, their TLR-9 expression was significantly reduced by almost 50% (p = 0.001). These findings, along with the observation of sema3A being reduced in SLE patients in correlation with disease severity and autoimmunity, and memory B cells being beneficially responsive to sema3A, suggest this regulatory molecule may be considered as a potential therapy for SLE. Such focused therapies will help in achieving the maintenance of self-tolerance and alter pro-inflammatory status in lupus.
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Affiliation(s)
- Z Vadasz
- Division of Allergy and Clinical Immunology, Bnai-Zion Medical Center, The Rappaport Faculty of Medicine, Technion - Haifa, Israel
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22
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Diverse roles for semaphorin−plexin signaling in the immune system. Trends Immunol 2012; 33:127-35. [DOI: 10.1016/j.it.2012.01.008] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 12/27/2011] [Accepted: 01/11/2012] [Indexed: 12/23/2022]
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Zhou H, Qi AP, Li HY, Ma L, Xu JH, Xue F, Lu SH, Zhao QJ, Zhou ZP, Yang RC. CD72 gene expression in immune thrombocytopenia. Platelets 2011; 23:638-44. [DOI: 10.3109/09537104.2011.633646] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Roney KE, O'Connor BP, Wen H, Holl EK, Guthrie EH, Davis BK, Jones SW, Jha S, Sharek L, Garcia-Mata R, Bear JE, Ting JPY. Plexin-B2 negatively regulates macrophage motility, Rac, and Cdc42 activation. PLoS One 2011; 6:e24795. [PMID: 21966369 PMCID: PMC3179467 DOI: 10.1371/journal.pone.0024795] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Accepted: 08/22/2011] [Indexed: 11/18/2022] Open
Abstract
Plexins are cell surface receptors widely studied in the nervous system, where they mediate migration and morphogenesis though the Rho family of small GTPases. More recently, plexins have been implicated in immune processes including cell-cell interaction, immune activation, migration, and cytokine production. Plexin-B2 facilitates ligand induced cell guidance and migration in the nervous system, and induces cytoskeletal changes in overexpression assays through RhoGTPase. The function of Plexin-B2 in the immune system is unknown. This report shows that Plexin-B2 is highly expressed on cells of the innate immune system in the mouse, including macrophages, conventional dendritic cells, and plasmacytoid dendritic cells. However, Plexin-B2 does not appear to regulate the production of proinflammatory cytokines, phagocytosis of a variety of targets, or directional migration towards chemoattractants or extracellular matrix in mouse macrophages. Instead, Plxnb2−/− macrophages have greater cellular motility than wild type in the unstimulated state that is accompanied by more active, GTP-bound Rac and Cdc42. Additionally, Plxnb2−/− macrophages demonstrate faster in vitro wound closure activity. Studies have shown that a closely related family member, Plexin-B1, binds to active Rac and sequesters it from downstream signaling. The interaction of Plexin-B2 with Rac has only been previously confirmed in yeast and bacterial overexpression assays. The data presented here show that Plexin-B2 functions in mouse macrophages as a negative regulator of the GTPases Rac and Cdc42 and as a negative regulator of basal cell motility and wound healing.
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Affiliation(s)
- Kelly E. Roney
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Brian P. O'Connor
- Integrated Department of Immunology, Center for Genes, Environment and Health, National Jewish Health, Denver, Colorado, United States of America
| | - Haitao Wen
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Eda K. Holl
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Elizabeth H. Guthrie
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Beckley K. Davis
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Stephen W. Jones
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Department of Cell and Developmental Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Sushmita Jha
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Lisa Sharek
- Department of Cell and Developmental Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Rafael Garcia-Mata
- Department of Cell and Developmental Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - James E. Bear
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Integrated Department of Immunology, Center for Genes, Environment and Health, National Jewish Health, Denver, Colorado, United States of America
| | - Jenny P.-Y. Ting
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- * E-mail:
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Kamata M, Tada Y, Uratsuji H, Kawashima T, Asano Y, Sugaya M, Kadono T, Tamaki K, Sato S. Semaphorin 7A on keratinocytes induces interleukin-8 production by monocytes. J Dermatol Sci 2011; 62:176-82. [PMID: 21524887 DOI: 10.1016/j.jdermsci.2011.02.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 02/08/2011] [Accepted: 02/21/2011] [Indexed: 12/26/2022]
Abstract
BACKGROUND Semaphorin 7A (Sema7A) expressed on activated T cells stimulates cytokine production in monocytes through its receptor, α1β1 integrin. OBJECTIVE To study the significance of Sema7A expressed on keratinocytes in skin inflammation where interaction between keratinocytes and β1-integrin expressing inflammatory cells, such as monocytes, takes place. METHODS The regulation of Sema7A expression on keratinocytes by various cytokines was studied by flow cytometry and immunoblot. β1-integrin expressing human monocyte cell line, THP-1 cells, were co-cultured with paraformaldehyde-fixed normal human epidermal keratinocytes (NHK) and IL-8 production by THP-1 cells was studied. The significance of β1-integrin or Sema7A within this cell interaction was examined by the experiments using β1-integrin blocking antibody or Sema7A siRNA. RESULTS IFN-γ and TNF-α slightly increased Sema7A expression, while IL-4 decreased it. Among cytokines tested, TGF-β1 most strikingly increased the Sema7A expression on NHK. When NHK was stimulated by TGF-β1, paraformaldehyde-fixed, and co-cultured with THP-1 cells, IL-8 production by THP-1 cells was increased compared to THP-1 cells only. When THP-1 cells were pretreated with β1-integrin blocking antibody, this increase in IL-8 production by THP-1 cells was inhibited. Likewise, when NHK were pretreated with Sema7A siRNA before fixation and co-cultured with THP-1 cells, increase in IL-8 production by THP-1 cells was inhibited. CONCLUSION Our results suggest that Sema7A on keratinocytes and β1-integrin on monocytes contribute to monocyte activation by keratinocytes within skin inflammation, such as psoriasis or wound.
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Affiliation(s)
- Masahiro Kamata
- Department of Dermatology, Faculty of Medicine, University of Tokyo, Tokyo, Japan
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Besliu A, Banica L, Predeteanu D, Vlad V, Ionescu R, Pistol G, Opris D, Berghea F, Stefanescu M, Matache C. Peripheral blood lymphocytes analysis detects CD100/SEMA4D alteration in systemic sclerosis patients. Autoimmunity 2011; 44:427-36. [PMID: 21244334 DOI: 10.3109/08916934.2010.541171] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
It was suggested that the immune system plays an important role at least in the amplification of the main elements in systemic sclerosis (SSc), an autoimmune disease with an incompletely elucidated pathogenesis. Elucidation of the mechanisms involved in the interaction between T and B cells, major players of the immune system, could contribute to a better understanding of some of clinical and pathological manifestations of SSc. Recently, abnormalities in Semaphorin 4D (Sema4D/CD100) or CD72, two contrareceptors involved in T and B cells cooperation, were associated with autoimmunity. Therefore, we investigated CD100 and CD72 expression level on T and B cells in attempting to establish their role in SSc pathogenesis. The results revealed augmented percentages of CD100(high) T and B cells, significantly increased expression of CD100 on CD4(+) T cells and frequently detectable levels of soluble CD100 in SSc patient sera compared to healthy donors. In SSc, CD100 dysregulations were associated with anti-Scl70 antibodies production, disease type, thickening of skin, disease duration, or with active inflammation processes. In consequence, dysregulations in CD100 expression and release could play a role in SSc development and/or maintenance.
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Affiliation(s)
- Alina Besliu
- Cellular Receptors Laboratory, Cantacuzino National Institute of Research and Development for Microbiology and Immunology, Bucharest, Romania
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Vadasz Z, Attias D, Kessel A, Toubi E. Neuropilins and semaphorins - from angiogenesis to autoimmunity. Autoimmun Rev 2010; 9:825-9. [PMID: 20678594 DOI: 10.1016/j.autrev.2010.07.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2010] [Accepted: 07/23/2010] [Indexed: 01/13/2023]
Abstract
Angiogenesis, the growth of new blood vessels from preexisting ones, is an important process in health and disease. The persistence of neovascularization in inflammatory diseases, such as rheumatoid arthritis (RA), might facilitate the entrance of inflammatory cells into the synovium and stimulate pannus formation. Several potent pro-angiogenic cytokines have been implicated in inflammatory angiogenesis. Of these, vascular endothelial growth factor (VEGF) and its receptors (VEGFRs) have been demonstrated to play a central role in RA, systemic lupus erythematosus (SLE) and multiple sclerosis (MS). Increased serum levels of VEGF were found to correlate with disease activity and severity of these diseases whereas, remission was associated with decreased levels. In the last few years, other molecules, initially found in neurodevelopment, were found to be involved in angiogenesis and recently also in the immune system and autoimmunity. Neuropilins (NPs) are VEGF receptors, while some of the semaphorins (SEMAs) are neuropilins' ligands. Their involvement in the development of autoimmune diseases and the various mechanisms by which they may induce autoimmunity will be discussed in this review.
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Affiliation(s)
- Z Vadasz
- Bnai-Zion Medical Center, Technion Institute, Haifa, Israel
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Wysocka J, Zelazowska-Rutkowska B, Ratomski K, Skotnicka B, Hassmann-Poznańska E. [Evaluation of percentage of lymphocytes B with expression of co-receptors CD 40, CD22 and CD72 in hypertrophied adenoid at children with otitis media with effusion]. Otolaryngol Pol 2010; 63:504-8. [PMID: 20198985 DOI: 10.1016/s0030-6657(09)70169-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
INTRODUCTION In hypertrophied adenoid lymphocytes B make up about 60% all lymphocytes. When the lymphocytes B come in interaction with antigens this membranes signal be passed through their receptor (BCR) to interior of cell. This signal affect modulation on gene expression, activation from which depends activation, anergy or apoptosis of lymphocyte B. Accompany BCR co-receptors regulate his functions influence stimulate or inhibitive. To the most important co-receptors stepping out on lymphocyte B belong: CD40, CD22, CD72. AIM OF STUDY The aim of study was evaluation of lymphocytes B (CD19) with co-expression with CD72 and CD40 receptors in hypertrophied adenoid with at children with otitis media with effusion. MATERIAL An investigation was executed in hypertrophied adenoids with or without otitis media with effusion. METHODS By flow cytometry percentage of lymphocytes B with co-receptors CD 40, CD22 and CD72 in was analyzed. RESULTS The percentages of CD19+CD72+ lymphocytes in the group of children with adenoid hypertrophy and exudative otitis media were lower as compared to the reference group. However, the percentages of CD19+CD22+, CD19+CD40+ in the study group was approximate to the reference group. CONCLUSIONS The lower percentage of lymphocytes B CD72 + near approximate percentages of lymphocytes B CD40+ and BCD22+ at children with otitis media with effusion can be the cause of incorrect humoral response in hypertrophied adenoid at children. Maybe it is cause reduced spontaneous production IgA and IgG through lymphocyte at children with otitis media with effusion.
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Affiliation(s)
- Jolanta Wysocka
- Zakad Laboratoryjnej Diagnostyki Pediatrycznej Uniwersytetu Medycznego w Białymstoku
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Abstract
BACKGROUND Sema4D/CD100 is a type of class 4 semaphorin, exhibiting crucial roles in growth cone guidance in developing neurons. Sema4D is widely expressed throughout the central nervous system in embryonic mouse brain, and is selectively localized to oligodendrocytes and myelin in the postnatal brain. However, direct evidence of the actual involvement of Sema4D in the neuronal network development crucial for neurobehavioral performance is still lacking. The present study therefore examined whether Sema4D deficiency leads to abnormal behavioral development. METHODS Both wild-type and Sema4D-deficient mice were subjected to behavioral analyses including open-field, adhesive tape removal, rotarod tests and a water maze task. RESULTS Open-field tests revealed increased locomotor activity in Sema4D-deficient mice with less percentage of time spent in the center of the field. In both the adhesive tape removal and rotarod tests, which examine motor coordination and balance, Sema4D-deficient mice showed significantly superior performance, suggesting facilitated motor behavior. Both Sema4D-deficient and wild-type mice successfully learnt the water maze task, locating a hidden escape platform, and also showed precise memory for the platform position in probe tests. However, the swimming speed of Sema4D-deficient mice was significantly faster than that of wild-type mice, providing further evidence of their accelerated motor behavior. CONCLUSION Our mouse behavioral analyses revealed enhanced motor activity in Sema4D-deficient mice, suggesting the crucial involvement of Sema4D in the neurodevelopmental processes of the central structures mediating motor behavior in mice.
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Ji JD, Ivashkiv LB. Roles of semaphorins in the immune and hematopoietic system. Rheumatol Int 2009; 29:727-34. [PMID: 19139899 DOI: 10.1007/s00296-009-0852-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2008] [Accepted: 01/05/2009] [Indexed: 10/21/2022]
Abstract
Semaphorins were originally discovered in the nervous system, and have been implicated in repulsive axon guidance during the development of nervous system. Semaphorins are also implicated in tumor progression, by affecting adhesion, migration of malignant cells and angiogenesis, and are involved in normal cardiovascular development. Recently, several semaphorins and their receptors are expressed in a variety of lymphoid and myeloid cells, and affect immune cell functions, including cell proliferation, differentiation, chemotaxis, and cytokine production. This review focuses on recent work on the functions of semaphorins in the immune system and autoimmune diseases.
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Affiliation(s)
- Jong Dae Ji
- Division of Rheumatology, College of Medicine, Korea University, 126-1, Anam-Dong 5-Ga, Sungbuk-Ku, Seoul, 136-705, South Korea.
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Immune Semaphorins: Novel Features of Neural Guidance Molecules. J Clin Immunol 2008; 29:1-11. [DOI: 10.1007/s10875-008-9263-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2008] [Accepted: 11/10/2008] [Indexed: 02/07/2023]
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Wu HJ, Bondada S. CD72, a coreceptor with both positive and negative effects on B lymphocyte development and function. J Clin Immunol 2008; 29:12-21. [PMID: 19067131 DOI: 10.1007/s10875-008-9264-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Accepted: 11/10/2008] [Indexed: 10/21/2022]
Abstract
INTRODUCTION B lymphocytes remain in a resting state until activated by antigenic stimuli through interaction with the B cell receptor (BCR). Coreceptors on B cells can modulate the thresholds for signaling through the BCR for growth and differentiation. CD72 is a B cell coreceptor that has been shown to interact with CD100, a semaphorin, and to enhance BCR signaling. DISCUSSION CD72 ligation induces a variety of early signaling events such as activation of the Src kinases Blk and Lyn and the non-src kinase Btk leading to activation of the mitogen-activated protein (MAP) kinases, events usually associated with positive signaling. CD72 signals can enable Btk-deficient B cells to overcome their unresponsiveness to BCR signaling. On the other hand, BCR-mediated signals are enhanced in CD72-deficient cells but are reduced in CD100 null cells. The dual effects of CD72 on B cells can be explained by its association with positive and negative signaling molecules. Thus, CD72 interacts with SHP-1, an SH2-domain containing protein tyrosine phosphatase, a negative regulator of signaling, and Grb2, an adaptor protein associated with the Ras/MAPK pathway. Ligation of CD72 also triggered its association with CD19, a positive modulator of B cell receptor signaling. We propose a dual signaling hypothesis to explain the growth and differentiation promoting properties of CD72. Deficiency in either CD72 or CD100 leads to autoimmunity in mouse models. CD72 expression and polymorphisms exhibit some association with autoimmune diseases such as lupus, Sjogren's syndrome, and type 1 diabetes.
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Affiliation(s)
- Hsin-Jung Wu
- Section on Immunology and Immunogenetics, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02115, USA
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Li DHH, Winslow MM, Cao TM, Chen AH, Davis CR, Mellins ED, Utz PJ, Crabtree GR, Parnes JR. Modulation of peripheral B cell tolerance by CD72 in a murine model. ACTA ACUST UNITED AC 2008; 58:3192-204. [PMID: 18821699 DOI: 10.1002/art.23812] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE B cells play a dominant role in the pathogenesis of several autoimmune diseases, including systemic lupus erythematosus. It is not well understood how B cell signaling contributes to autoantibody production. The goal of this study was to elucidate the role of CD72 in modulating B cell receptor (BCR)-mediated tolerogenic signaling and peripheral B cell tolerance. METHODS A mouse model utilizing hen egg lysozyme (HEL) "anergic" B cells was studied. CD72-deficient mice carrying the BCR-specific IgHEL and/or soluble HEL (sHEL) transgenes were generated by breeding IgHEL-transgenic MD4 mice and/or sHEL-transgenic ML5 mice with congenic, CD72-deficient C57BL/6J mice. Normal and anergic B cells were isolated for analyses of B cell signaling. Aged wild-type and CD72-deficient mice were also examined for autoimmune phenomena. RESULTS In the absence of CD72, anergic B cells inappropriately proliferated and survived in response to stimulation with self antigen. Biochemical analyses indicated that in anergic B cells, CD72 dominantly down-regulated BCR signaling to limit the antigen-induced elevation in [Ca2+]i and the activation of NFATc1, NF-kappaB, MAPK, and Akt. Mechanistically, CD72 was associated with, and regulated, the molecular adaptor Cbl-b in anergic B cells, suggesting that Cbl-b may play a role in mediating the negative effects of CD72 on BCR signaling. Moreover, in aged CD72-deficient mice, spontaneous production of antinuclear and anti-double-stranded DNA autoantibodies and features of lupus-like autoimmune disease were observed. CONCLUSION CD72 is required to maintain B cell anergy and functions as a regulator of peripheral B cell tolerance. Thus, altered CD72 expression may play a role during the development of systemic lupus erythematosus.
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Yamamoto M, Suzuki K, Okuno T, Ogata T, Takegahara N, Takamatsu H, Mizui M, Taniguchi M, Chédotal A, Suto F, Fujisawa H, Kumanogoh A, Kikutani H. Plexin-A4 negatively regulates T lymphocyte responses. Int Immunol 2008; 20:413-20. [PMID: 18209113 DOI: 10.1093/intimm/dxn006] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Semaphorins and their receptors play crucial roles not only in axon guidance during neuronal development but also in the regulation of immune responses. Plexin-A4, a member of the plexin-A subfamily, forms a receptor complex with neuropilins and transduces signals for class III semaphorins in the nervous system. Although plexin-A4 is also expressed in the lymphoid tissues, the involvement of plexin-A4 in immune responses remains unknown. To explore the role of plexin-A4 in the immune system, we analyzed immune responses in plexin-A4-deficient (plexin-A4-/-) mice. Among immune cells, plexin-A4 mRNA was detected in T cells, dendritic cells and macrophages but not in B cells and NK cells. Plexin-A4-/- mice had normal numbers and cell surface markers for each lymphocyte subset, suggesting that plexin-A4 is not essential for lymphocyte development. However, plexin-A4-/- mice exhibited enhanced antigen-specific T cell responses and heightened sensitivity to experimental autoimmune encephalomyelitis. Plexin-A4-/- T cells exhibited hyperproliferative responses to anti-CD3 stimulation and to allogeneic dendritic cells in vitro. Furthermore, this hyperproliferation was also observed in both T cells from neuropilin-1 mutant (npn-1(Sema-)) mice, in which the binding site of class III semaphorins is disrupted, and T cells from Sema3A-deficient (Sema-3A-/-) mice. Collectively, these results suggest that plexin-A4, as a component of the receptor complex for class III semaphorins, negatively regulates T cell-mediated immune responses.
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Affiliation(s)
- Midori Yamamoto
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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Mizrahi S, Markel G, Porgador A, Bushkin Y, Mandelboim O. CD100 on NK cells enhance IFNgamma secretion and killing of target cells expressing CD72. PLoS One 2007; 2:e818. [PMID: 17786190 PMCID: PMC1950564 DOI: 10.1371/journal.pone.0000818] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2007] [Accepted: 08/05/2007] [Indexed: 11/19/2022] Open
Abstract
Background NK cells are able to kill tumor and virus-infected cells without the need of prior antigen stimulation. The killing of these target cells is regulated by inhibitory, lysis and co-stimulatory receptors that are expressed on the surface of NK cells. Principal Findings CD100 (Semaphorin 4D), a 150kD transmembrane protein, is expressed on the surface of activated NK cells as a homodimer, mediates the killing of target cells by binding to CD72. CD100 is not involved directly in the killing process but is rather increases NK cytotoxicity by enhancing the adhesion between NK cells and their targets. This increased adhesion leads to a more efficient killing and enhanced IFNγ secretion. Significance Since CD72 is expressed on antigen presenting cells (APC) and the CD100-CD72 interaction lead to the shading of CD100, we suggest that NK interacting with APC cells could be the early source of soluble CD100 which is crucial for the formation of antigen specific immune response. CD100-CD72 interaction can be the mechanism by which NK cell communicate with B cells.
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Affiliation(s)
- Sa'ar Mizrahi
- The Lautenberg Center for General and Tumor Immunology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Gal Markel
- The Lautenberg Center for General and Tumor Immunology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Angel Porgador
- Department of Microbiology and Immunology, Faculty of Health Sciences, The Cancer Research Center, Ben Gurion University, Beer-Sheva, Israel
| | - Yuri Bushkin
- Public Health Research Institute, NJMS-UMDNJ, Newark, New Jersey, United States of America
| | - Ofer Mandelboim
- The Lautenberg Center for General and Tumor Immunology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
- * To whom correspondence should be addressed. E-mail:
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Bie Petersen C, Nygård AB, Fredholm M, Aasted B, Salomonsen J. Various domains of the B-cell regulatory molecule CD72 has diverged at different rates in mammals: cloning, transcription and mapping of porcine CD72. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2007; 31:530-8. [PMID: 17023047 DOI: 10.1016/j.dci.2006.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2006] [Revised: 07/28/2006] [Accepted: 07/28/2006] [Indexed: 05/12/2023]
Abstract
We report the cloning of the porcine B-cell co-receptor CD72, as well as genomic mapping and examination of transcription. The B-cell receptor (BCR) complex mediates signalling upon antigen recognition by the membrane bound BCR. Several co-receptors modulate this signal positively or negatively. CD72 has been shown to be a negatively regulating BCR co-receptor. We isolated and sequenced three porcine CD72 transcript variants. Using a pig radiation hybrid panel we found the porcine CD72 gene to be located on chromosome 1q21-28 in a region syntenic to human chromosome 9. The porcine CD72 gene is highly transcribed in lymph node, thymus and lung tissues as well as in pulmonary alveolar macrophages. The predicted porcine CD72 polypeptide shows conservation of immunoreceptor tyrosine-based inhibitory motifs and an extracellular C-type lectin domain. Compared to CD72 sequences from other mammals as well as from chicken, the polypeptide is highly conserved in the intracellular part and much less conserved in the extracellular part. We suggest that this difference might be due to the different nature of ligands and the constrains on these to co-evolve.
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Affiliation(s)
- Cathrine Bie Petersen
- Department of Veterinary Pathobiology, The Royal Veterinary and Agricultural University, DK-1870 Frederiksberg C, Denmark.
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Potiron V, Nasarre P, Roche J, Healy C, Boumsell L. Semaphorin Signaling in the Immune System. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 600:132-44. [PMID: 17607952 DOI: 10.1007/978-0-387-70956-7_11] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Semaphorins, a family of genes encoding guidance molecules in the nervous system, influence a variety of cellular mechanisms including migration, proliferation and cytoskeleton reorganization. Interestingly, many members are expressed throughout lymphoid tissues and by different immune cells like lymphocytes, NK, monocytes and dendritic cells. Besides, the array of functions semaphorins usually regulate during organogenesis coincide with several key events required for the initiation as well as the regulation of the host immune response. Thus, it is not surprising if a substantial number of them modulates immune processes such as the establishment of the immunological synapse, differentiation to effector and helper cells, clonal expansion, migration and phagocytosis. For this purpose, immune semaphorins can signal via their canonical plexin receptors but also possibly by unique discrete cell surface proteins or associations thereof expressed by, and critical to, leukocytes. A growing list of semaphorins, receptors or related molecules keep being reported in the immune system, and display nonredundant roles at controlling its integrity and efficacy.
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Affiliation(s)
- Vincent Potiron
- CNRS-UMR 6187, IPBC Faculté des Sciences de Pointiers, France
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Abstract
The semaphorin family consists of soluble and membrane-bound proteins originally identified as axonal guidance cues functioning during neuronal development. However, it is becoming increasingly clear that semaphorins play diverse roles in organogenesis, vascular growth, and tumor progression. In addition, emerging evidence indicates that several semaphorins, called "immune semaphorins," play crucial roles also during immune responses. Extensive studies on the immune semaphorins have revealed not only parallels but also differences in the semaphorin functions between the immune and nervous systems, providing unexpected but meaningful insights into the biological activities of these molecules. This chapter focuses on our current understanding of the roles of semaphorins and their receptors in the immune system.
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Affiliation(s)
- Hitoshi Kikutani
- Department of Molecular Immunology and CREST Program of JST, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871, Japan
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Ahmed A, Eickholt BJ. Intracellular Kinases in Semaphorin Signaling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 600:24-37. [PMID: 17607944 DOI: 10.1007/978-0-387-70956-7_3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Originally identified as collapse-inducing and repellent proteins for neuronal processes, semaphorins are now implicated in a diverse array of cellular responses, contributing not only to embryonic development, but also to the maintenance of tissue integrity in the adult organism. In addition, semaphorins play a role in the pathological context. Some Semaphorins can act at a distance, facilitating the navigation of cells or axonal process, whilst others evoke responses in a contact-dependent fashion. The intracellular signaling mechanisms employed by the semaphorins are beginning to be determined, and much work in recent years implicates a host of intracellular kinases in mediating Semaphorin function. These include the tyrosine kinase Fyn and the serine/threonine kinases Cdk5, GSK3, MAPK, and LIMK, and the lipid kinase PI3K. What follows is a review of this work with respect to their functions in mediating specific semaphorin-induced responses.
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Affiliation(s)
- Aminul Ahmed
- MRC Centre for Developmental Neurobiology, King's College London, London SE1 1UL, UK
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Mackay M, Stanevsky A, Wang T, Aranow C, Li M, Koenig S, Ravetch JV, Diamond B. Selective dysregulation of the FcgammaIIB receptor on memory B cells in SLE. ACTA ACUST UNITED AC 2006; 203:2157-64. [PMID: 16923849 PMCID: PMC2118390 DOI: 10.1084/jem.20051503] [Citation(s) in RCA: 205] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The inappropriate expansion and activation of autoreactive memory B cells and plasmablasts contributes to loss of self-tolerance in systemic lupus erythematosus (SLE). Defects in the inhibitory Fc receptor, FcγRIIB, have been shown to contribute to B cell activation and autoimmunity in several mouse models of SLE. In this paper, we demonstrate that expression of FcγRIIB is routinely up-regulated on memory B cells in the peripheral blood of healthy controls, whereas up-regulation of FcγRIIB is considerably decreased in memory B cells of SLE patients. This directly correlates with decreased FcγRIIB-mediated suppression of B cell receptor–induced calcium (Ca2+) response in those B cells. We also found substantial overrepresentation of African-American patients among those who failed to up-regulate FcγRIIB. These results suggest that the inhibitory receptor, FcγRIIB, may be impaired at a critical checkpoint in SLE in the regulation of memory B cells; thus, FcγRIIB represents a novel target for therapeutic interventions in this disease.
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Affiliation(s)
- Meggan Mackay
- Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA.
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Takamatsu H, Kumanogoh A. [Involvement of semaphorins in autoimmunity]. NIHON RINSHO MEN'EKI GAKKAI KAISHI = JAPANESE JOURNAL OF CLINICAL IMMUNOLOGY 2005; 28:327-32. [PMID: 16276046 DOI: 10.2177/jsci.28.327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Semaphorins were identified originally as guidance cues for developing axons. However, it is becoming clear that several semaphorins are crucially involved in the immune system. For instance, Sema4D (CD100) enhances activation of B cells and dendritic cells, and Sema4A is involved in T cell priming and Th1/Th2 regulation. In addition, recent cumulative evidence reveals their importance in immunological homeostasis. We here focus on our current understanding of the roles of semaphorins in autoimmunity.
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Affiliation(s)
- Hyota Takamatsu
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University
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