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Kapitza L, Ho N, Kerzel T, Frank AM, Thalheimer FB, Jamali A, Schaser T, Buchholz CJ, Hartmann J. CD62L as target receptor for specific gene delivery into less differentiated human T lymphocytes. Front Immunol 2023; 14:1183698. [PMID: 37646032 PMCID: PMC10461316 DOI: 10.3389/fimmu.2023.1183698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 07/24/2023] [Indexed: 09/01/2023] Open
Abstract
Chimeric antigen receptor (CAR)-expressing T cells are a complex and heterogeneous gene therapy product with variable phenotype compositions. A higher proportion of less differentiated CAR T cells is usually associated with improved antitumoral function and persistence. We describe in this study a novel receptor-targeted lentiviral vector (LV) named 62L-LV that preferentially transduces less differentiated T cells marked by the L-selectin receptor CD62L, with transduction rates of up to 70% of CD4+ and 50% of CD8+ primary T cells. Remarkably, higher amounts of less differentiated T cells are transduced and preserved upon long-term cultivation using 62L-LV compared to VSV-LV. Interestingly, shed CD62L neither altered the binding of 62L-LV particles to T cells nor impacted their transduction. The incubation of 2 days of activated T lymphocytes with 62L-LV or VSV-LV for only 24 hours was sufficient to generate CAR T cells that controlled tumor growth in a leukemia tumor mouse model. The data proved that potent CAR T cells can be generated by short-term ex vivo exposure of primary cells to LVs. As a first vector type that preferentially transduces less differentiated T lymphocytes, 62L-LV has the potential to circumvent cumbersome selections of T cell subtypes and offers substantial shortening of the CAR T cell manufacturing process.
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Affiliation(s)
- Laura Kapitza
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Naphang Ho
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Thomas Kerzel
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Annika M. Frank
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | | | - Arezoo Jamali
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Thomas Schaser
- Research & Development, Miltenyi Biotec B.V. & Co. KG, Bergisch Gladbach, Germany
| | - Christian J. Buchholz
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
| | - Jessica Hartmann
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
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Fattahi MJ, Rehm BH, Matsuo H, Cuzzocrea S, Jafarnezhad-Ansariha F, Ahmadi H, Tofighi-Zavareh F, Oraei M, Aghazadeh Z, Mirshafiey A. Evaluation of cell adhesion molecules (LFA-1 and L-selectin) in ankylosing spondylitis patients after treatment with β-D-mannuronic acid (M2000). Indian J Med Res 2023; 157:453-459. [PMID: 37955219 PMCID: PMC10443726 DOI: 10.4103/ijmr.ijmr_448_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Indexed: 11/14/2023] Open
Abstract
Background & objectives To examine β-D-mannuronic acid (M2000) effects on L-selectin shedding and leucocyte function-associated antigen-1 (LFA-1) expression as mechanisms of action of this drug in patients with ankylosing spondylitis (AS). Methods To investigate the molecular consequences of β-D-mannuronic acid on L-selectin shedding, flow cytometry method was used. Furthermore, the effect of it on LFA-1 gene expression was analyzed by using quantitative real time (qRT)-PCR technique. Results The LFA-1 expression in patients with AS was higher than controls (P=0.046). The LFA-1 expression after 12 wk therapy with β-D-mannuronic acid was meaningfully decreased (P=0.01). After 12 wk treatment with β-D-mannuronic acid, the frequency of CD62L-expressing CD4+ T cells in patients with AS, was not considerably altered, compared to the patients before therapy (P=0.5). Furthermore, after 12 wk therapy with β-D-mannuronic acid, L-selectin expression levels on CD4+ T-cells in patients with AS, were not remarkably changed, compared to the expression levels of these in patients before treatment (P=0.2). Interpretation & conclusions The results of this study for the first time showed that β-D-mannuronic acid can affect events of adhesion cascade in patients with AS. Moreover, β-D-mannuronic acid presented as an acceptable benefit to AS patients and could aid in the process of disease management.
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Affiliation(s)
- Mohammad Javad Fattahi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bernd H.A. Rehm
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand,
| | - Hidenori Matsuo
- Department of Clinical Research, Nagasaki Kawatana Medical Center, Nagasaki, Japan
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical & Environmental Sciences, University of Messina, Messina, Italy
| | - Fahimeh Jafarnezhad-Ansariha
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, International Campus, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Ahmadi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Tofighi-Zavareh
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Oraei
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Aghazadeh
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Mirshafiey
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Eswaran S, Babbar A, Drescher HK, Hitch TCA, Clavel T, Muschaweck M, Ritz T, Kroy DC, Trautwein C, Wagner N, Schippers A. Upregulation of Anti-Oxidative Stress Response Improves Metabolic Changes in L-Selectin-Deficient Mice but Does Not Prevent NAFLD Progression or Fecal Microbiota Shifts. Int J Mol Sci 2021; 22:ijms22147314. [PMID: 34298930 PMCID: PMC8306675 DOI: 10.3390/ijms22147314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/29/2021] [Accepted: 07/04/2021] [Indexed: 12/12/2022] Open
Abstract
(1) Background: Non-alcoholic fatty liver disease (NAFLD) is a growing global health problem. NAFLD progression involves a complex interplay of imbalanced inflammatory cell populations and inflammatory signals such as reactive oxygen species and cytokines. These signals can derive from the liver itself but also from adipose tissue or be mediated via changes in the gut microbiome. We analyzed the effects of a simultaneous migration blockade caused by L-selectin-deficiency and an enhancement of the anti-oxidative stress response triggered by hepatocytic Kelch-like ECH-associated protein 1 (Keap1) deletion on NAFLD progression. (2) Methods: L-selectin-deficient mice (Lsel−/−Keap1flx/flx) and littermates with selective hepatic Keap1 deletion (Lsel−/−Keap1Δhepa) were compared in a 24-week Western-style diet (WD) model. (3) Results: Lsel−/−Keap1Δhepa mice exhibited increased expression of erythroid 2-related factor 2 (Nrf2) target genes in the liver, decreased body weight, reduced epidydimal white adipose tissue with decreased immune cell frequencies, and improved glucose response when compared to their Lsel−/−Keap1flx/flx littermates. Although WD feeding caused drastic changes in fecal microbiota profiles with decreased microbial diversity, no genotype-dependent shifts were observed. (4) Conclusions: Upregulation of the anti-oxidative stress response improves metabolic changes in L-selectin-deficient mice but does not prevent NAFLD progression and shifts in the gut microbiota.
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Affiliation(s)
- Sreepradha Eswaran
- Department of Pediatrics, Faculty of Medicine, RWTH Aachen University, D-52074 Aachen, Germany; (S.E.); (A.B.); (M.M.)
| | - Anshu Babbar
- Department of Pediatrics, Faculty of Medicine, RWTH Aachen University, D-52074 Aachen, Germany; (S.E.); (A.B.); (M.M.)
- Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Hannah K. Drescher
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA;
| | - Thomas C. A. Hitch
- Functional Microbiome Research Group, Faculty of Medicine, RWTH Aachen University, D-52074 Aachen, Germany; (T.C.A.H.); (T.C.)
| | - Thomas Clavel
- Functional Microbiome Research Group, Faculty of Medicine, RWTH Aachen University, D-52074 Aachen, Germany; (T.C.A.H.); (T.C.)
| | - Moritz Muschaweck
- Department of Pediatrics, Faculty of Medicine, RWTH Aachen University, D-52074 Aachen, Germany; (S.E.); (A.B.); (M.M.)
| | - Thomas Ritz
- Institute of Pathology, Ruprecht-Karls-University Heidelberg, D-69117 Heidelberg, Germany;
| | - Daniela C. Kroy
- Department of Internal Medicine III, University Hospital, RWTH Aachen, D-52074 Aachen, Germany; (D.C.K.); (C.T.)
| | - Christian Trautwein
- Department of Internal Medicine III, University Hospital, RWTH Aachen, D-52074 Aachen, Germany; (D.C.K.); (C.T.)
| | - Norbert Wagner
- Department of Pediatrics, Faculty of Medicine, RWTH Aachen University, D-52074 Aachen, Germany; (S.E.); (A.B.); (M.M.)
- Correspondence: (N.W.); (A.S.)
| | - Angela Schippers
- Department of Pediatrics, Faculty of Medicine, RWTH Aachen University, D-52074 Aachen, Germany; (S.E.); (A.B.); (M.M.)
- Correspondence: (N.W.); (A.S.)
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Algorri M, Wong-Beringer A. Differential effects of antibiotics on neutrophils exposed to lipoteichoic acid derived from Staphylococcus aureus. Ann Clin Microbiol Antimicrob 2020; 19:50. [PMID: 33143710 PMCID: PMC7641855 DOI: 10.1186/s12941-020-00392-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 10/20/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Persistent bacteremia occurs in at least 30% of patients with Staphylococcus aureus bloodstream infection (SAB) and may be attributable to a dysregulated host immune response. Neutrophils interact with a variety of S. aureus microbial factors, including lipoteichoic acid (LTA), to activate phagocytic function in a concentration-dependent manner. Antibiotics have been shown to exert both direct antimicrobial action as well as immunomodulatory effects. In this study, we compared the effects of different anti-staphylococcal antibiotics on LTA-mediated immune activation of neutrophils. METHODS Neutrophils obtained from healthy volunteers were exposed to two levels of LTA (1 and 10 μg/ml) with or without addition of antibiotics from different pharmacologic classes (vancomycin, daptomycin, ceftaroline). Neutrophil function was assessed by examining phagocytic response, activation (CD11b, CD62L expression), Toll-like receptor-2 expression, cell survival and apoptosis, and CXCL8 release. RESULTS Differential LTA-mediated antibiotic effects on neutrophil function were observed primarily at the high LTA exposure level. Ceftaroline in the presence of 10 μg/ml LTA had the most prominent effects on phagocytosis and CD11b and CD62L expression, with trends towards increased neutrophil survival and preservation of CXCL8 release when compared to daptomycin and vancomycin with the latter significantly dampening PMN CXCL8 release. CONCLUSIONS Select antimicrobial agents, such as ceftaroline, exert immunostimulatory effects on neutrophils exposed to S. aureus LTA, which when confirmed in vivo, could be leveraged for its dual immunomodulatory and antibacterial actions for the treatment of persistent SAB mediated by a dysregulated host response.
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Affiliation(s)
- Marquerita Algorri
- University of Southern California, School of Pharmacy, 1985 Zonal Avenue, Los Angeles, CA, 90089, USA
| | - Annie Wong-Beringer
- University of Southern California, School of Pharmacy, 1985 Zonal Avenue, Los Angeles, CA, 90089, USA.
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Gong Y, Suzuki T, Kozono H, Kubo M, Nakano N. Tumor-infiltrating CD62L+PD-1-CD8 T cells retain proliferative potential via Bcl6 expression and replenish effector T cells within the tumor. PLoS One 2020; 15:e0237646. [PMID: 32845913 PMCID: PMC7449457 DOI: 10.1371/journal.pone.0237646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 07/30/2020] [Indexed: 01/11/2023] Open
Abstract
Tumor antigen–primed CD8 T cells differentiate into effector T cells that kill tumor cells rapidly, whereas durable responses of CD8 T cells are required to cope with long-lasting tumor growth. However, it is not well known how persisting CD8 T cells are generated. In this study, we analyzed CD8 T cells primed by antigens in tumor-draining lymph nodes and found that CD8 T cells first differentiated into a CD62L-intermediate (CD62Lint) stage upon antigen stimulation. These cells gave rise to tumor-infiltrating CD62L-CD44high Bcl6- effector T cells and CD62L+CD44highBcl6+ memory-like T cells. Memory-like T cells within the tumor expressed CD127, CXCR3 and had the potential to proliferate significantly when they were transferred into tumor-bearing mice. Bcl6 expression in these T cells was critical because Bcl6-/-CD62L+CD44highCD8T cells within the tumor were defective in expansion after secondary transfer. Taken together, our findings show that CD62L+CD44highBcl6+ cells are generated from highly proliferating CD62Lint T cells and retain high proliferative potential, which contributes to replenishment of effector T cells within the tumor.
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Affiliation(s)
- Yu Gong
- Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Toshihiro Suzuki
- School of Medicine and Faculty of Medical Technology, General Medical Education and Research Center, Teikyo University, Tokyo, Japan
| | - Haruo Kozono
- Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Masato Kubo
- Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Naoko Nakano
- Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
- * E-mail:
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Perfilyeva YV, Ostapchuk YO, Abdolla N, Tleulieva R, Krasnoshtanov VC, Belyaev NN. Exogenous Melatonin Up-Regulates Expression of CD62L by Lymphocytes in Aged Mice under Inflammatory and Non-Inflammatory Conditions. Immunol Invest 2019; 48:632-643. [PMID: 30887869 DOI: 10.1080/08820139.2019.1586918] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
It is well documented that age-related impaired functioning of immunocompetent cells is associated with an increase in the rates of chronic inflammatory diseases. Recently, an ability of melatonin to modulate inflammatory processes by regulating leucocyte recruitment has been demonstrated. However, to date, no studies have attempted to determine the impact of melatonin on the expression of CD62L by lymphocytes. CD62L, also known as L-selectin, is required for the entry of lymphocytes into secondary lymphoid organs, sites of tumor growth and chronic inflammation through high endothelial venules. Here, we investigated the effect of melatonin at physiological concentrations on the expression of CD62L by T and NK cells in vivo and in vitro. We demonstrated that NK and CD3+ T cells obtained from the spleen of aged mice were characterized by decreased expression of CD62L compared to young mice. Melatonin administration up-regulated the levels of surface CD62L on NK and T cell populations in aged mice under non-inflammatory conditions and on CD8+ T cells in aged mice with chronic inflammation. Pre-incubation with melatonin prevented the reduction in CD62L expression by CD8+ T cells induced by the co-cultivation of peripheral blood mononuclear cells with human pancreatic adenocarcinoma cell line (MiaPaCa-2). The obtained results suggest that melatonin can modulate lymphocyte homing into lymph nodes and sites of chronic inflammation and, therefore, can stimulate immune responses in chronic inflammatory conditions associated with aging.
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Affiliation(s)
- Yuliya V Perfilyeva
- a Laboratory of Molecular Immunology and Immunobiotechnology , M.A.Aitkhozhin's Institute of Molecular Biology and Biochemistry , Almaty , Kazakhstan
| | - Yekaterina O Ostapchuk
- a Laboratory of Molecular Immunology and Immunobiotechnology , M.A.Aitkhozhin's Institute of Molecular Biology and Biochemistry , Almaty , Kazakhstan
| | - Nurshat Abdolla
- a Laboratory of Molecular Immunology and Immunobiotechnology , M.A.Aitkhozhin's Institute of Molecular Biology and Biochemistry , Almaty , Kazakhstan
- b Department of Biophysics and Biomedicine , Al-Farabi Kazakh National University , Almaty , Kazakhstan
| | - Raikhan Tleulieva
- a Laboratory of Molecular Immunology and Immunobiotechnology , M.A.Aitkhozhin's Institute of Molecular Biology and Biochemistry , Almaty , Kazakhstan
| | | | - Nikolai N Belyaev
- d Department of New Technologies , Saint-Petersburg Pasteur Institute , Saint-Petersburg , Russia
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Watson HA, Durairaj RRP, Ohme J, Alatsatianos M, Almutairi H, Mohammed RN, Vigar M, Reed SG, Paisey SJ, Marshall C, Gallimore A, Ager A. L-Selectin Enhanced T Cells Improve the Efficacy of Cancer Immunotherapy. Front Immunol 2019; 10:1321. [PMID: 31249570 PMCID: PMC6582763 DOI: 10.3389/fimmu.2019.01321] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/24/2019] [Indexed: 12/11/2022] Open
Abstract
The homing molecule, L-selectin (CD62L), is commonly used as a T cell activation marker, since expression is downregulated following engagement of the T cell receptor. Studies in mice have shown that CD62L+ central memory T cells are better at controlling tumor growth than CD62L- effector memory T cells, while L-selectin knockout T cells are poor at controlling tumor growth. Here, we test the hypothesis that T cells expressing genetically modified forms of L-selectin that are maintained following T cell activation (L-selectin enhanced T cells) are better at controlling tumor growth than wild type T cells. Using mouse models of adoptive cell therapy, we show that L-selectin enhancement improves the efficacy of CD8+ T cells in controlling solid and disseminated tumor growth. L-selectin knockout T cells had no effect. Checkpoint blockade inhibitors synergized with wild type and L-selectin enhanced T cells but had no effect in the absence of T cell transfers. Reduced tumor growth by L-selectin enhanced T cells correlated with increased frequency of CD8+ tumor infiltrating T cells 21 days after commencing therapy. Longitudinal tracking of Zirconium-89 (89Zr) labeled T cells using PET-CT showed that transferred T cells localize to tumors within 1 h and accumulate over the following 7 days. L-selectin did not promote T cell homing to tumors within 18 h of transfer, however the early activation marker CD69 was upregulated on L-selectin positive but not L-selectin knockout T cells. L-selectin positive and L-selectin knockout T cells homed equally well to tumor-draining lymph nodes and spleens. CD69 expression was upregulated on both L-selectin positive and L-selectin knockout T cells but was significantly higher on L-selectin expressing T cells, particularly in the spleen. Clonal expansion of isolated L-selectin enhanced T cells was slower, and L-selectin was linked to expression of proliferation marker Ki67. Together these findings demonstrate that maintaining L-selectin expression on tumor-specific T cells offers an advantage in mouse models of cancer immunotherapy. The beneficial role of L-selectin is unrelated to its' well-known role in T cell homing and, instead, linked to activation of therapeutic T cells inside tumors. These findings suggest that L-selectin may benefit clinical applications in T cell selection for cancer therapy and for modifying CAR-T cells to broaden their clinical scope.
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Affiliation(s)
- H. Angharad Watson
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Ruban R. P. Durairaj
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Julia Ohme
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Markella Alatsatianos
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Hanan Almutairi
- PET Imaging Centre, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Rebar N. Mohammed
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Miriam Vigar
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Sophie G. Reed
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Stephen J. Paisey
- PET Imaging Centre, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Christopher Marshall
- PET Imaging Centre, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Awen Gallimore
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
- Systems Immunity Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Ann Ager
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
- Systems Immunity Research Institute, Cardiff University, Cardiff, United Kingdom
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Mohammed RN, Wehenkel SC, Galkina EV, Yates EK, Preece G, Newman A, Watson HA, Ohme J, Bridgeman JS, Durairaj RRP, Moon OR, Ladell K, Miners KL, Dolton G, Troeberg L, Kashiwagi M, Murphy G, Nagase H, Price DA, Matthews RJ, Knäuper V, Ager A. ADAM17-dependent proteolysis of L-selectin promotes early clonal expansion of cytotoxic T cells. Sci Rep 2019; 9:5487. [PMID: 30940840 PMCID: PMC6445073 DOI: 10.1038/s41598-019-41811-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 03/12/2019] [Indexed: 01/15/2023] Open
Abstract
L-selectin on T-cells is best known as an adhesion molecule that supports recruitment of blood-borne naïve and central memory cells into lymph nodes. Proteolytic shedding of the ectodomain is thought to redirect activated T-cells from lymph nodes to sites of infection. However, we have shown that activated T-cells re-express L-selectin before lymph node egress and use L-selectin to locate to virus-infected tissues. Therefore, we considered other roles for L-selectin proteolysis during T cell activation. In this study, we used T cells expressing cleavable or non-cleavable L-selectin and determined the impact of L-selectin proteolysis on T cell activation in virus-infected mice. We confirm an essential and non-redundant role for ADAM17 in TCR-induced proteolysis of L-selectin in mouse and human T cells and show that L-selectin cleavage does not regulate T cell activation measured by CD69 or TCR internalisation. Following virus infection of mice, L-selectin proteolysis promoted early clonal expansion of cytotoxic T cells resulting in an 8-fold increase over T cells unable to cleave L-selectin. T cells unable to cleave L-selectin showed delayed proliferation in vitro which correlated with lower CD25 expression. Based on these results, we propose that ADAM17-dependent proteolysis of L-selectin should be considered a regulator of T-cell activation at sites of immune activity.
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Affiliation(s)
- Rebar N Mohammed
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
- College of Veterinary Medicine, University of Sulaimani, Sulaimani, Kurdistan, Iraq
| | - Sophie C Wehenkel
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Elena V Galkina
- Francis Crick Institute, London, NW1 1AT, UK
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
| | | | | | - Andrew Newman
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - H Angharad Watson
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Julia Ohme
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - John S Bridgeman
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Ruban R P Durairaj
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Owen R Moon
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Kristin Ladell
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Kelly L Miners
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Garry Dolton
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Linda Troeberg
- Norwich Medical School, University of East Anglia, Norwich, NR4 7UQ, UK
| | | | - Gillian Murphy
- University of Cambridge Depratment of Oncology, Cancer Research UK Cambridge Insitute, Li Ka Shing Centre, Cambridge, CB2 0RE, UK
| | - Hideaki Nagase
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, OX3 7FY, UK
| | - David A Price
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff, CF14 4XN, UK
| | - R James Matthews
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Vera Knäuper
- School of Dentistry, Cardiff University, Heath Park, Cardiff, CF14 4XN, UK
| | - Ann Ager
- Divsion of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK.
- Systems Immunity Research Institute, Cardiff University, Heath Park, Cardiff, CF14 4XN, UK.
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Managlia E, Liu SXL, Yan X, Tan XD, Chou PM, Barrett TA, De Plaen IG. Blocking NF-κB Activation in Ly6c + Monocytes Attenuates Necrotizing Enterocolitis. Am J Pathol 2019; 189:604-618. [PMID: 30593820 PMCID: PMC6412404 DOI: 10.1016/j.ajpath.2018.11.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 11/06/2018] [Accepted: 11/28/2018] [Indexed: 12/31/2022]
Abstract
Necrotizing enterocolitis (NEC) is a devastating disease affecting premature infants with intestinal inflammation and necrosis. The neonatal intestinal inflammatory response is rich in macrophages, and blood monocyte count is low in human NEC. We previously found that NF-κB mediates the intestinal injury in experimental NEC. However, the role of NF-κB in myeloid cells during NEC remains unclear. Herein, inhibitor of kappaB kinase β (IKKβ), a critical kinase mediating NF-κB activation, was deleted in lysozyme M (Lysm)-expressing cells, which were found to be Cd11b+Ly6c+ monocytes but not Cd11b+Ly6c- macrophages in the dam-fed neonatal mouse intestine. NEC induced differentiation of monocytes into intestinal macrophages and up-regulation of monocyte recruitment genes (eg, L-selectin) in the macrophage compartment in wild-type mice, but not in pups with IKKβ deletion in Lysm+ cells. Thus, NF-κB is required for NEC-induced monocyte activation, recruitment, and differentiation in neonatal intestines. Furthermore, pups with Lysm-IKKβ deletion had improved survival and decreased incidence of severe NEC compared with littermate controls. Decreased NEC severity was not associated with an improved intestinal barrier. In contrast, NEC was unabated in mice with IKKβ deletion in intestinal epithelial cells. Together, these data suggest that recruitment of Ly6c+ monocytes into the intestine, NF-κB activation in these cells, and differentiation of Ly6c+ monocytes into macrophages are critical cellular and molecular events in NEC development to promote disease.
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Affiliation(s)
- Elizabeth Managlia
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Shirley X L Liu
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Xiaocai Yan
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Xiao-Di Tan
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Gastroenterology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Department of Pathology, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Pauline M Chou
- Department of Pathology, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois
| | - Terrence A Barrett
- Division of Gastroenterology, Department of Internal Medicine, University of Kentucky, Lexington, Kentucky
| | - Isabelle G De Plaen
- Center for Intestinal and Liver Inflammation Research, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois; Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Stanley Manne Children's Research Institute, Northwestern University, Feinberg School of Medicine, Chicago, Illinois.
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10
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Peruzzi C, Nascimento S, Gauer B, Nardi J, Sauer E, Göethel G, Cestonaro L, Fão N, Cattani S, Paim C, Souza J, Gnoatto D, Garcia SC. Inflammatory and oxidative stress biomarkers at protein and molecular levels in workers occupationally exposed to crystalline silica. Environ Sci Pollut Res Int 2019; 26:1394-1405. [PMID: 30426371 DOI: 10.1007/s11356-018-3693-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
Workers chronically exposed to respirable crystalline silica (CS) are susceptible to adverse health effects like silicosis and lung cancer. This study aimed to investigate potential early peripheral biomarkers of inflammation and oxidative stress in miners. The subjects enrolled in this study were occupationally unexposed workers (OUW, n = 29) and workers exposed to crystalline silica (WECS), composed by miners, which were divided into two subgroups: workers without silicosis (WECS I, n = 39) and workers diagnosed with silicosis, retired from work (WECS II, n = 42). The following biomarkers were evaluated: gene expression of L-selectin, CXCL2, CXCL8 (IL-8), HO-1, and p53; malondialdehyde (MDA) plasma levels and non-protein thiol levels in erythrocytes. Additionally, protein expression of L-selectin was evaluated to confirm our previous findings. The results demonstrated that gene expression of L-selectin was decreased in the WECS I group when compared to the OUW group (p < 0.05). Regarding gene expression of CXCL2, CXCL8 (IL-8), HO-1, and p53, significant fold change decreases were observed in workers exposed to CS in relation to unexposed workers (p < 0.05). The results of L-selectin protein expression in lymphocyte surface corroborated with our previous findings; thus, significant downregulation in the WECS groups was observed compared to OUW group (p < 0.05). The MDA was negatively associated with the gene expression of CXCL-2, CXCL8 (IL-8), and p53 (p < 0.05). The participants with silicosis (WECS II) presented significant increased non-protein thiol levels in relation to other groups (p < 0.05). Taken together, our findings may contribute to help the knowledge about the complex mechanisms involved in the silicosis pathogenesis and in the risk of lung cancer development in workers chronically exposed to respirable CS.
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Affiliation(s)
- Caroline Peruzzi
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Sabrina Nascimento
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Bruna Gauer
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Jessica Nardi
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Elisa Sauer
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Gabriela Göethel
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Larissa Cestonaro
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Nuryan Fão
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Shanda Cattani
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil
| | - Cristiane Paim
- FUNDACENTRO, Fundação Jorge Duprat e Figueiredo, Porto Alegre, RS, Brazil
| | - Jorge Souza
- Unidade Regional de Saúde do Trabalhador (UREST), Ametista do Sul, RS, Brazil
| | - Daniela Gnoatto
- Unidade Regional de Saúde do Trabalhador (UREST), Ametista do Sul, RS, Brazil
| | - Solange Cristina Garcia
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, 90610-000, Brazil.
- Programa de Pós-Graduação em Ciências Farmacêuticas (PPGCF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
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11
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Carlow DA, Tra MC, Ziltener HJ. A cell-extrinsic ligand acquired by activated T cells in lymph node can bridge L-selectin and P-selectin. PLoS One 2018; 13:e0205685. [PMID: 30379850 PMCID: PMC6209203 DOI: 10.1371/journal.pone.0205685] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 09/29/2018] [Indexed: 01/25/2023] Open
Abstract
P-selectin expressed on activated endothelia and platelets supports recruitment of leukocytes expressing P-selectin ligand to sites of inflammation. While monitoring P-selectin ligand expression on activated CD8+ T cells in murine adoptive transfer models, we observed two distinct ligands on responding donor cells, the canonical cell-intrinsic P-selectin ligand PSGL-1 and a second undocumented P-selectin ligand we provisionally named PSL2. PSL2 is unusual among selectin ligands in that it is cell-extrinsic, loaded onto L-selectin expressed by activated T cells but not L-selectin on resting naïve CD8+ T cells. PSL2 display is highest on activated T cells responding in peripheral lymph nodes and low on T cells responding in spleen suggesting that the original source of PSL2 is high endothelial venules, cells known to produce L-selectin ligands. PSL2 is a ligand for both P-selectin and L-selectin and can physically bridge the two selectins. The L-selectin/PSL2 complex can mediate P-selectin-dependent adherence of activated T cells to immobilized P-selectin or to activated platelets, either independently or cooperatively with PSGL-1. PSL2's capacity to bridge between L-selectin on activated T cells and P-selectin reveals an undocumented and unanticipated activity of cell-extrinsic selectin ligands in mediating selectin-selectin connectivity. The timing and circumstances of PSL2 detection on T cells, together with its capacity to support adherence to P-selectin-bearing substrates, are consistent with P-selectin engagement of both PSGL1 and the L-selectin/PSL2 complex during T cell recruitment. Engagement of PSGL-1 and L-selectin/PSL2 would likely deliver distinct signals known to be relevant in this process.
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Affiliation(s)
- Douglas A. Carlow
- The Biomedical Research Centre, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- * E-mail:
| | - Michelle C. Tra
- The Biomedical Research Centre, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hermann J. Ziltener
- The Biomedical Research Centre, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Pathology, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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12
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Mohammed RN, Watson HA, Vigar M, Ohme J, Thomson A, Humphreys IR, Ager A. L-selectin Is Essential for Delivery of Activated CD8(+) T Cells to Virus-Infected Organs for Protective Immunity. Cell Rep 2016; 14:760-771. [PMID: 26804910 PMCID: PMC4742564 DOI: 10.1016/j.celrep.2015.12.090] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 12/01/2015] [Accepted: 12/18/2015] [Indexed: 11/18/2022] Open
Abstract
Cytotoxic CD8+ T lymphocytes play a critical role in the host response to infection by viruses. The ability to secrete cytotoxic chemicals and cytokines is considered pivotal for eliminating virus. Of equal importance is how effector CD8+ T cells home to virus-infected tissues. L-selectin has not been considered important for effector T cell homing, because levels are low on activated T cells. We report here that, although L-selectin expression is downregulated following T cell priming in lymph nodes, L-selectin is re-expressed on activated CD8+ T cells entering the bloodstream, and recruitment of activated CD8+ T cells from the bloodstream into virus-infected tissues is L-selectin dependent. Furthermore, L-selectin on effector CD8+ T cells confers protective immunity to two evolutionally distinct viruses, vaccinia and influenza, which infect mucosal and visceral organs, respectively. These results connect homing and a function of virus-specific CD8+ T cells to a single molecule, L-selectin. L-selectin is re-expressed on activated CD8+ T cells exiting lymph nodes L-selectin does not regulate priming, differentiation, or function of cytotoxic T lymphocytes Entry of activated CD8+ T cells into virus-infected tissues is L-selectin dependent The level of cell-surface L-selectin determines the extent of anti-viral immunity
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Affiliation(s)
- Rebar N Mohammed
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - H Angharad Watson
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Miriam Vigar
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Julia Ohme
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Amanda Thomson
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Ian R Humphreys
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Ann Ager
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK.
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13
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Kuznetsova TA, Smolina TP, Besednova NN, Silchenko AS, Imbs TI, Ermakova SP. [Effect of Sulfated Polysaccharides from Brown Alga Fucus evanescens and Their Enzymatic Transformation Product on Functional Activity of Innate Immunity Cells.]. Antibiot Khimioter 2016; 61:10-14. [PMID: 29533555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
The effect of sulfated polysaccharides (PS) from brown alga Fucus evanescens and their enzymatic transformation and low molecular weight product on the functional activity of the innate immunity cells, i.e. polymorphonuclear leukocytes of human peripheral blood (NF) was comparatively studied. The in vitro NF contact with PS resulted in significant changes in the functional activity of NF, evident from higher density of molecules CD69, CD14, CD11b on the cell membranes with simultaneous lowering of that of CD62L and increased phagocytic and bactericidal activity of NF. The low molecular weight product resulting from fucoidan transformation with fucoidanases showed a higher effect on the level of the molecules CD14, CD11b and CD62L expression vs. the high molecular weight PS.
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MESH Headings
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, Differentiation, T-Lymphocyte/genetics
- Antigens, Differentiation, T-Lymphocyte/immunology
- CD11c Antigen/genetics
- CD11c Antigen/immunology
- Fucus/chemistry
- Gene Expression Regulation/drug effects
- Glycoside Hydrolases/chemistry
- Humans
- Hydrolysis
- L-Selectin/genetics
- L-Selectin/immunology
- Lectins, C-Type/genetics
- Lectins, C-Type/immunology
- Leukocytes, Mononuclear/cytology
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/immunology
- Lipopolysaccharide Receptors/genetics
- Lipopolysaccharide Receptors/immunology
- Phagocytosis/drug effects
- Polysaccharides/chemistry
- Polysaccharides/isolation & purification
- Polysaccharides/pharmacology
- Primary Cell Culture
- Sulfates/chemistry
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14
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Shirshev SV, Nekrasova IV, Gorbunova OL, Orlova EG, Maslennikova IL. The effect of kisspeptin on the functional characteristics of isolated NK cells. Dokl Biol Sci 2015; 464:267-269. [PMID: 26530074 DOI: 10.1134/s0012496615050129] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Indexed: 06/05/2023]
Abstract
The effect of kisspeptin at concentrations typical of pregnancy on the functional activity of isolated cytokine-primed NK cells has been investigated. The hormone has been shown to promote an increase in the proportion of CD56(bright) NK cells, as well as an increase in the L-selectin expression on the cell surface. Assessment of cytokine levels has shown that kisspeptin suppresses the production of IL-4, IL-10, and IFN-γ while stimulating the production of TGF-β by isolated NK cells. The overall effect of the hormone investigated consisted in the formation of a phenotype and a cytokine spectrum characteristic of the regulatory NK3 subpopulation of NK cells in pregnancy.
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Affiliation(s)
- S V Shirshev
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia.
| | - I V Nekrasova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia
| | - O L Gorbunova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia
| | - E G Orlova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia
| | - I L Maslennikova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia
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15
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Cortés-Garcia JD, López-López C, Cortez-Espinosa N, García-Hernández MH, Guzmán-Flores JM, Layseca-Espinosa E, Portales-Cervantes L, Portales-Pérez DP. Evaluation of the expression and function of the P2X7 receptor and ART1 in human regulatory T-cell subsets. Immunobiology 2015; 221:84-93. [PMID: 26307000 DOI: 10.1016/j.imbio.2015.07.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 07/10/2015] [Accepted: 07/23/2015] [Indexed: 01/11/2023]
Abstract
Regulatory T cells that express CD39 (CD39+ Treg) exhibit specific immunomodulatory properties. Ectonucleotidase CD39 hydrolyses ATP and ADP. ATP is a ligand of the P2X7 receptor and induces the shedding of CD62L and apoptosis. However, the role of ATP in CD39+ Treg cells has not been defined. Furthermore, NAD can activate the P2X7 receptor via ADP-ribosyltransferase (ART) enzymes and cause cell depletion in murine models. We evaluated the expression and function of P2X7 and ART1 in CD39+ Treg and CD39- Treg cells in the presence or absence of ATP and NAD. We isolated peripheral blood mononuclear cells from healthy subjects and purified CD4+ T cells, CD4+ CD25+ T cells and CD4+ CD25+ CD39+ T cells. P2X7 and ART1 expression was assessed by flow cytometry and real-time PCR. Our results showed low P2X7 expression on CD39+ Treg cells and higher levels of ART1 expression in CD4+ CD39+ T cells than the other subtypes studied. Neither shedding of CD62L nor cell death of CD39+ Treg or CD39- Treg cells was observed by 1mM ATP or 60μM NAD. In contrast, P2Xs receptor-dependent proliferation with 300μM ATP, was inhibited by NAD in the different cell types analysed. The NAD proliferation-inhibition was increased with P2Xs and A2a agonist and was reversed with P2Xs and A2a antagonist, therefore NAD inhibits P2Xs-dependent proliferation and A2a activation. In conclusion, our results suggest that the altered function and expression of P2X7 and ART1 in the human CD39+ Treg or CD39- Treg cells could participate in the resistance against cell death induced by ATP or NAD.
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Affiliation(s)
- Juan D Cortés-Garcia
- Laboratory of Immunology and Cellular and Molecular Biology, Faculty of Chemical Sciences, UASLP, San Luis Potosí, S.L.P., Mexicohttp://10.10.23.110:8080/TDXPSLIVELATEX/gateway/elsevierjournal/index.jsp#
| | - Cintya López-López
- Division of Molecular Biology, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, S.L.P. Mexico
| | - Nancy Cortez-Espinosa
- Laboratory of Immunology and Cellular and Molecular Biology, Faculty of Chemical Sciences, UASLP, San Luis Potosí, S.L.P., Mexicohttp://10.10.23.110:8080/TDXPSLIVELATEX/gateway/elsevierjournal/index.jsp#
| | | | - Juan M Guzmán-Flores
- Laboratory of Immunology and Cellular and Molecular Biology, Faculty of Chemical Sciences, UASLP, San Luis Potosí, S.L.P., Mexicohttp://10.10.23.110:8080/TDXPSLIVELATEX/gateway/elsevierjournal/index.jsp#
| | | | - Liliana Portales-Cervantes
- Laboratory of Immunology and Cellular and Molecular Biology, Faculty of Chemical Sciences, UASLP, San Luis Potosí, S.L.P., Mexicohttp://10.10.23.110:8080/TDXPSLIVELATEX/gateway/elsevierjournal/index.jsp#
| | - Diana P Portales-Pérez
- Laboratory of Immunology and Cellular and Molecular Biology, Faculty of Chemical Sciences, UASLP, San Luis Potosí, S.L.P., Mexicohttp://10.10.23.110:8080/TDXPSLIVELATEX/gateway/elsevierjournal/index.jsp#.
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16
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Stoycheva D, Deiser K, Stärck L, Nishanth G, Schlüter D, Uckert W, Schüler T. IFN-γ regulates CD8+ memory T cell differentiation and survival in response to weak, but not strong, TCR signals. J Immunol 2015; 194:553-9. [PMID: 25480562 DOI: 10.4049/jimmunol.1402058] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
In response to primary Ag contact, naive mouse CD8(+) T cells undergo clonal expansion and differentiate into effector T cells. After pathogen clearance, most effector T cells die, and only a small number of memory T cell precursors (TMPs) survive to form a pool of long-lived memory T cells (TMs). Although high- and low-affinity CD8(+) T cell clones are recruited into the primary response, the TM pool consists mainly of high-affinity clones. It remains unclear whether the more efficient expansion of high-affinity clones and/or cell-intrinsic processes exclude low-affinity T cells from the TM pool. In this article, we show that the lack of IFN-γR signaling in CD8(+) T cells promotes TM formation in response to weak, but not strong, TCR agonists. The IFN-γ-sensitive accumulation of TMs correlates with reduced mammalian target of rapamycin activation and the accumulation of long-lived CD62L(hi)Bcl-2(hi)Eomes(hi) TMPs. Reconstitution of mammalian target of rapamycin or IFN-γR signaling is sufficient to block this process. Hence, our data suggest that IFN-γR signaling actively blocks the formation of TMPs responding to weak TCR agonists, thereby promoting the accumulation of high-affinity T cells finally dominating the TM pool.
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Affiliation(s)
- Diana Stoycheva
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany; Institute of Immunology, Charité Berlin, 12200 Berlin, Germany
| | - Katrin Deiser
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany; Institute of Immunology, Charité Berlin, 12200 Berlin, Germany
| | - Lilian Stärck
- Max-Delbrück-Center for Molecular Medicine, 13125 Berlin, Germany
| | - Gopala Nishanth
- Institute of Medical Microbiology and Hospital Hygiene, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany; Organ-Specific Immune Regulation, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; and
| | - Dirk Schlüter
- Institute of Medical Microbiology and Hospital Hygiene, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany; Organ-Specific Immune Regulation, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; and
| | - Wolfgang Uckert
- Max-Delbrück-Center for Molecular Medicine, 13125 Berlin, Germany; Institute of Biology, Humboldt University Berlin, 10115 Berlin, Germany
| | - Thomas Schüler
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany; Institute of Immunology, Charité Berlin, 12200 Berlin, Germany;
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17
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Chen Y, Zheng L, Liu J, Zhou Z, Lv X, Zhang J, Zhang S, Sun L, Chen F. [Activation of Wnt/β-catenin pathway in NK cells by glycogen synthase kinase-3β inhibitor TWS119 promotes the expression of CD62L]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2015; 31:44-48. [PMID: 25575058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the effect of Wnt/β-catenin pathway activation by glycogen synthase kinase-3β inhibitor 4,6-disubstituted pyrrolopyrimidine (TWS119) on proliferation and phenotypic characteristics of human nature killer (NK) cells. METHODS The peripheral blood mononuclear cells (PBMCs) were obtained from healthy volunteers and added to the complete medium containing recombinant human interleukin-2 (rhIL-2) and human AB serum to isolate NK cells from PBMCs. After co-cultured with 0-8.0 μmol/L TWS119 for 72 hours, growth curve and Wnt/β-catenin activation of NK cells in each group were determined by CCK-8 and Western blotting. The CD107a and CD62L (L-selectin) expressions in the NK cells were detected using flow cytometry. RESULTS NK cells were amplified to (61.76 ± 3.74)% after human PBMCs were cultured for 10 days. The 0-2.0 μmol/L TWS119 could promote the growth of NK cells in a dose-dependent manner, and the proliferation rate gradually dropped when TWS119 was more than 2.0 μmol/L. 0-8.0 μmol/L TWS119 could activate Wnt/β-catenin pathway and up-regulate the expression of CD62L in a dose-dependent manner, but it decreased the expression of CD107a. CONCLUSION Human NK cells isolated from peripheral blood treated with TWS119 gave rise to early mature CD62L⁺ NK cells.
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Affiliation(s)
- Yongqiang Chen
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Lu Zheng
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Junquan Liu
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Zhonghai Zhou
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Xiaoting Lv
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Juan Zhang
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Song Zhang
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Leiqing Sun
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
| | - Fuxing Chen
- Department of Central Laboratory, No. 97th Hospital of PLA, Xuzhou 221004, China
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Huang W, Qi Q, Hu J, Huang F, Laufer TM, August A. Dendritic cell-MHC class II and Itk regulate functional development of regulatory innate memory CD4+ T cells in bone marrow transplantation. J Immunol 2014; 192:3435-3441. [PMID: 24610010 PMCID: PMC4033297 DOI: 10.4049/jimmunol.1303176] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
MHC class II (MHCII)-influenced CD4(+) T cell differentiation and function play critical roles in regulating the development of autoimmunity. The lack of hematopoietic MHCII causes autoimmune disease that leads to severe wasting in syngeneic recipients. Using murine models of bone marrow transplantation (BMT), we find that MHCII(-/-)→wild-type BMT developed disease, with defective development of innate memory phenotype (IMP, CD44(hi)/CD62L(lo)) CD4(+) T cells. Whereas conventional regulatory T cells are unable to suppress pathogenesis, IMP CD4(+) T cells, which include conventional regulatory T cells, can suppress pathogenesis in MHCII(-/-)→wild-type chimeras. The functional development of IMP CD4(+) T cells requires hematopoietic but not thymic MHCII. B cells and hematopoietic CD80/86 regulate the population size, whereas MHCII expression by dendritic cells is sufficient for IMP CD4(+) T cell functional development and prevention of pathogenesis. Furthermore, the absence of Tec kinase IL-2-inducible T cell kinase in MHCII(-/-) donors leads to preferential development of IMP CD4(+) T cells and partially prevents pathogenesis. We conclude that dendritic cells-MHCII and IL-2-inducible T cell kinase regulate the functional development of IMP CD4(+) T cells, which suppresses the development of autoimmune disorder in syngeneic BMTs.
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Affiliation(s)
- Weishan Huang
- Department of Microbiology & Immunology and Program in Infection & Pathobiology, Cornell University, Ithaca, NY, USA
| | - Qian Qi
- Department of Microbiology & Immunology and Program in Infection & Pathobiology, Cornell University, Ithaca, NY, USA
- Huck Institutes of The Life Sciences and Center for Molecular Immunology and Infectious Disease, The Pennsylvania State University, University Park, PA, USA
| | - Jianfang Hu
- Huck Institutes of The Life Sciences and Center for Molecular Immunology and Infectious Disease, The Pennsylvania State University, University Park, PA, USA
| | - Fei Huang
- Department of Microbiology & Immunology and Program in Infection & Pathobiology, Cornell University, Ithaca, NY, USA
| | - Terri M. Laufer
- Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Avery August
- Department of Microbiology & Immunology and Program in Infection & Pathobiology, Cornell University, Ithaca, NY, USA
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Nasibullin TR, Sadikova RI, Timasheva IR, Tuktarova IA, Erdman VV, Khusainova LN, Nikolaeva IE, Mustafina OE. [Association between inflanummatory gene polymorphisms and the risk of myocardial infarction]. Genetika 2014; 50:236-242. [PMID: 25711033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Allele and genotype frequency distributions of polymorphism rs2076059 (3832T>C) within the SELE gene rs6131 (S290N), within the SELP gene, rs1131498 (F206L), within the SELL gene, rs5498 (K469E) within the ICAM1 gene, rs35569394 (-2549(18)I/D) within the VEGFA gene, and rs1024611 (-2518A>G) within the CCL2 gene were examined in a group of patients after myocardial infarction (MI)(280 individuals) and in a control group (312 individuals). An implementation of the Markov chain and Monte-Carlo method (AP- Sampler) revealed the allele combinations associated with decreased and increased risk of MI. Among these the most important allele combinations were SELE*C + SELP*S + CCL2*A (FDR = 0.0005; OR = 0.42) SELP*S + CCL2*A (FDR = 0.0009; OR= 0.36}, SELL*F + VEGFA*I+ CCL2*G/G(FDR = 0.0009; OR = 4.17) VEGFA*I+ CCL2*G/G (FDR = 0.0009; OR = 3.76), SELE*C + CCL2*A (FDR = 0.0023; OR = 0.47), and SELL*I+ CCL2*G/G (FDR = 0.003; OR = 3.15).
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20
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Sardarian K, Abasi M, Solgi G, Hajilooi M. The L-selectin Phe206Leu gene polymorphism is not associated with visceral leishmaniasis. J Res Health Sci 2014; 14:218-220. [PMID: 25209910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 05/05/2014] [Accepted: 05/27/2014] [Indexed: 06/03/2023] Open
Abstract
BACKGROUND Previous studies revealed that selectins play key roles in homing of immune cells to inflamed tissues and lymphatic organs. L-selectins are expressed on immune cells and interact with P and E selectins to homing to the tissues, hence, the polymorphisms within the gene of L-selectins may are associated with alteration in its expression. Thus, the current cross-sectional analytical study has been designed to investigate the polymorphisms within L-selectin gene and their relation with visceral leishmaniasis (VL). METHODS This study was performed on 194 samples during 2004-2012.The PCR-SSP and immunoflorescence techniques were used to evaluate the L-selectins polymorphism and anti-Leishmania antibody titration, respectively, in 56, 74 and 64 seropositive VL patients (group 1), seropositive healthy controls (group 2) and seronegative healthy controls (group 3). RESULTS The results showed that the genotypes (P=0.711) and alleles (P=0.679) within L-selectins gene (A/C) was not differ between groups. Our results also demonstrated that the genotypes within L-selectins in group 1 (P=0.807) and 2 (P=0.441) were not associated with the titration of anti-leishmania antibody. CONCLUSIONS The results identified that the polymorphisms within L-selectins gene were not associated with VL and it may be concluded that these genotypes and alleles are unable to affect immune responses in VL patients.
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Affiliation(s)
- Khosro Sardarian
- Department of Parasitology and Mycology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
| | - Mohammad Abasi
- Department of Internal Medicine, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ghasem Solgi
- Department of Immunology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mehrdad Hajilooi
- Department of Immunology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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Díaz-Montero CM, Zidan AA, Pallin MF, Anagnostopoulos V, Salem ML, Wieder E, Komanduri K, Montero AJ, Lichtenheld MG. Understanding the biology of ex vivo-expanded CD8 T cells for adoptive cell therapy: role of CD62L. Immunol Res 2013; 57:23-33. [PMID: 24218360 DOI: 10.1007/s12026-013-8456-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
CD62L governs the circulation of CD8(+) T cells between lymph nodes and peripheral tissues, whereby the expression of CD62L by CD8(+) T cells promotes their recirculation through lymph nodes. As such, CD62L participates in the fate of adoptively transferred CD8(+) T cells and may control their effectiveness for cancer immunotherapy, including settings in which host preconditioning results in the acute lymphopenia-induced proliferation of the transferred cells. Indeed, previous studies correlated CD62L expression by donor CD8(+) cells with the success rate of adoptive cell therapy (ACT). Here, we analyzed the functions and fate of ex vivo-activated, tumor-specific CD62L(-/-) CD8(+) T cells in a mouse melanoma model for ACT. Unexpectedly, we observed that CD62L(-/-) CD8(+) T cells were functionally indistinguishable from CD62L(+/+) CD8(+) T cells, i.e., both greatly expanded in cyclophosphamide preconditioned animals, controlled subcutaneously and hematogenously spreading tumors, and generated anti-tumor-specific CD8(+) T cell memory. Moreover, even in hosts with rudimentary secondary lymphoid organs (LT(-/-) animals), CD8(+) T cells with and without CD62L expanded equivalently to those adoptively transferred into wild-type animals. These results put into question the utility of CD62L as a predictive biomarker for the efficacy of ex vivo-expanded T cells after ACT in lymphopenic conditions and also offer new insights into the homing, engraftment, and memory generation of adoptively transferred ex vivo-activated CD8(+) T cells.
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Affiliation(s)
- C Marcela Díaz-Montero
- Department of Immunology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA,
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22
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Etemire E, Krull M, Hasenberg M, Reichardt P, Gunzer M. Transiently reduced PI3K/Akt activity drives the development of regulatory function in antigen-stimulated Naïve T-cells. PLoS One 2013; 8:e68378. [PMID: 23874604 PMCID: PMC3708928 DOI: 10.1371/journal.pone.0068378] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 05/27/2013] [Indexed: 12/22/2022] Open
Abstract
Regulatory T-cells (Tregs) are central for immune homeostasis and divided in thymus-derived natural Tregs and peripherally induced iTreg. However, while phenotype and function of iTregs are well known, a remarkable lack exists in knowledge about signaling mechanisms leading to their generation from naïve precursors in peripheral tissues. Using antigen specific naïve T-cells from mice, we investigated CD4+ CD25+ FoxP3- iTreg induction during antigen-specific T-cell receptor (TCR) stimulation with weak antigen presenting cells (APC). We show that early signaling pathways such as ADAM-17-activation appeared similar in developing iTreg and effector cells (Teff) and both initially shedded CD62-L. But iTreg started reexpressing CD62-L after 24 h while Teff permanently downmodulated it. Furthermore, between 24 and 72 hours iTreg presented with significantly lower phosphorylation levels of Akt-S473 suggesting lower activity of the PI3K/Akt-axis. This was associated with a higher expression of the Akt hydrophobic motif-specific phosphatase PHLPP1 in iTreg. Importantly, the lack of costimulatory signals via CD28 from weak APC was central for the development of regulatory function in iTreg but not for the reappearance of CD62-L. Thus, T-cells display a window of sensitivity after onset of TCR triggering within which the intensity of the PI3K/Akt signal controls entry into either effector or regulatory pathways.
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MESH Headings
- ADAM Proteins/genetics
- ADAM Proteins/immunology
- ADAM Proteins/metabolism
- ADAM17 Protein
- Animals
- Antigen-Presenting Cells/immunology
- Antigen-Presenting Cells/metabolism
- Down-Regulation
- L-Selectin/genetics
- L-Selectin/immunology
- L-Selectin/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Phosphatidylinositol 3-Kinases/genetics
- Phosphatidylinositol 3-Kinases/immunology
- Phosphatidylinositol 3-Kinases/metabolism
- Phosphorylation
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/immunology
- Proto-Oncogene Proteins c-akt/metabolism
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/immunology
- Receptors, Antigen, T-Cell/metabolism
- Signal Transduction
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- TOR Serine-Threonine Kinases/genetics
- TOR Serine-Threonine Kinases/immunology
- TOR Serine-Threonine Kinases/metabolism
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Affiliation(s)
- Eloho Etemire
- University Duisburg-Essen, University Hospital, Institute for Experimental Immunology and Imaging, Essen, Germany
| | - Marco Krull
- Otto von Guericke University, Institute of Molecular and Clinical Immunology, Magdeburg, Germany
| | - Mike Hasenberg
- University Duisburg-Essen, University Hospital, Institute for Experimental Immunology and Imaging, Essen, Germany
| | - Peter Reichardt
- Otto von Guericke University, Institute of Molecular and Clinical Immunology, Magdeburg, Germany
- * E-mail: (MG); (PR)
| | - Matthias Gunzer
- University Duisburg-Essen, University Hospital, Institute for Experimental Immunology and Imaging, Essen, Germany
- * E-mail: (MG); (PR)
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Kim G, Jang MS, Son YM, Seo MJ, Ji SY, Han SH, Jung ID, Park YM, Jung HJ, Yun CH. Curcumin inhibits CD4(+) T cell activation, but augments CD69 expression and TGF-β1-mediated generation of regulatory T cells at late phase. PLoS One 2013; 8:e62300. [PMID: 23658623 PMCID: PMC3637266 DOI: 10.1371/journal.pone.0062300] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2011] [Accepted: 03/21/2013] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Curcumin is a promising candidate for a natural medicinal agent to treat chronic inflammatory diseases. Although CD4(+) T cells have been implicated in the pathogenesis of chronic inflammation, whether curcumin directly regulates CD4(+) T cells has not been definitively established. Here, we showed curcumin-mediated regulation of CD2/CD3/CD28-initiated CD4(+) T cell activation in vitro. METHODOLOGY/PRINCIPAL FINDINGS Primary human CD4(+) T cells were stimulated with anti-CD2/CD3/CD28 antibody-coated beads as an in vitro surrogate system for antigen presenting cell-T cell interaction and treated with curcumin. We found that curcumin suppresses CD2/CD3/CD28-initiated CD4(+) T cell activation by inhibiting cell proliferation, differentiation and cytokine production. On the other hand, curcumin attenuated the spontaneous decline of CD69 expression and indirectly increased expression of CCR7, L-selectin and Transforming growth factor-β1 (TGF-β1) at the late phase of CD2/CD3/CD28-initiated T cell activation. Curcumin-mediated up-regulation of CD69 at late phase was associated with ERK1/2 signaling. Furthermore, TGF-β1 was involved in curcumin-mediated regulation of T cell activation and late-phase generation of regulatory T cells. CONCLUSIONS/SIGNIFICANCE Curcumin not merely blocks, but regulates CD2/CD3/CD28-initiated CD4(+) T cell activation by augmenting CD69, CCR7, L-selectin and TGF-β1 expression followed by regulatory T cell generation. These results suggest that curcumin could directly reduce T cell-dependent inflammatory stress by modulating CD4(+) T cell activation at multiple levels.
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MESH Headings
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Antibodies/pharmacology
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, Differentiation, T-Lymphocyte/genetics
- Antigens, Differentiation, T-Lymphocyte/immunology
- CD4-Positive T-Lymphocytes/cytology
- CD4-Positive T-Lymphocytes/drug effects
- CD4-Positive T-Lymphocytes/immunology
- Cell Differentiation/drug effects
- Cell Proliferation/drug effects
- Curcumin/pharmacology
- Gene Expression Regulation/drug effects
- Humans
- L-Selectin/genetics
- L-Selectin/immunology
- Lectins, C-Type/agonists
- Lectins, C-Type/genetics
- Lectins, C-Type/immunology
- Lymphocyte Activation/drug effects
- Mitogen-Activated Protein Kinase 1/genetics
- Mitogen-Activated Protein Kinase 1/immunology
- Mitogen-Activated Protein Kinase 3/genetics
- Mitogen-Activated Protein Kinase 3/immunology
- Primary Cell Culture
- Receptors, CCR7/genetics
- Receptors, CCR7/immunology
- Signal Transduction
- T-Lymphocytes, Regulatory/cytology
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- Transforming Growth Factor beta1/pharmacology
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Affiliation(s)
- Girak Kim
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Mi Seon Jang
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Young Min Son
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Min Ji Seo
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sang Yun Ji
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
- National Institute of Animal Science, Suwon, Gyeonggi-do, Republic of Korea
| | - Seung Hyun Han
- Department of Oral Microbiology & Immunology, BK21 Program, and Dental Research Institute School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - In Duk Jung
- Konkuk University College of Medicine, Seoul, Republic of Korea
| | - Yeong-Min Park
- Konkuk University College of Medicine, Seoul, Republic of Korea
| | - Hyun Jung Jung
- National Institute of Animal Science, Suwon, Gyeonggi-do, Republic of Korea
| | - Cheol-Heui Yun
- Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea
- World Class University Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
- * E-mail:
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Elsenberg EHAM, Hillaert MA, den Ruijter HM, Sels JWEM, Scholtes VPW, Nathoe HM, Kuiper J, Jukema JW, Doevendans PA, Pasterkamp G, Hoefer IE. Toll-Like Receptor induced CD11b and L-selectin response in patients with coronary artery disease. PLoS One 2013; 8:e60467. [PMID: 23573259 PMCID: PMC3616095 DOI: 10.1371/journal.pone.0060467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Accepted: 02/26/2013] [Indexed: 01/31/2023] Open
Abstract
Toll-Like Receptor (TLR) -2 and -4 expression and TLR-induced cytokine response of inflammatory cells are related to atherogenesis and atherosclerotic plaque progression. We examined whether immediate TLR induced changes in CD11b and L-selectin (CD62L) expression are able to discriminate the presence and severity of atherosclerotic disease by exploring single dose whole blood TLR stimulation and detailed dose-response curves. Blood samples were obtained from 125 coronary artery disease (CAD) patients and 28 controls. CD11b and L-selectin expression on CD14+ monocytes was measured after whole blood stimulation with multiple concentrations of the TLR4 ligand LPS (0.01–10 ng/ml) and the TLR2 ligand P3C (0.5–500 ng/ml). Subsequently, dose-response curves were created and the following parameters were calculated: hillslope, EC50, area under the curve (AUC) and delta. These parameters provide information about the maximum response following activation, as well as the minimum trigger required to induce activation and the intensity of the response. CAD patients showed a significantly higher L-selectin, but not CD11b response to TLR ligation than controls after single dose stimulations as well as significant differences in the hillslope and EC50 of the dose-response curves. Within the CAD patient group, dose-response curves of L-selectin showed significant differences in the presence of hypertension, dyslipidemia, coronary occlusion and degree of stenosis, whereas CD11b expression had the strongest discriminating power after single dose stimulation. In conclusion, single dose stimulations and dose-response curves of CD11b and L-selectin expression after TLR stimulation provide diverse but limited information about atherosclerotic disease severity in stable angina patients. However, both single dose stimulation and dose-response curves of LPS-induced L-selectin expression can discriminate between controls and CAD patients.
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Affiliation(s)
- Ellen H. A. M. Elsenberg
- Laboratory of Experimental Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Marieke A. Hillaert
- Department of Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Hester M. den Ruijter
- Laboratory of Experimental Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | | | - Vincent P. W. Scholtes
- Laboratory of Experimental Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Hendrik M. Nathoe
- Department of Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Johan Kuiper
- Division of Biopharmaceuticals, Leiden University, Leiden, The Netherlands
| | - J. Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Pieter A. Doevendans
- Department of Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Gerard Pasterkamp
- Laboratory of Experimental Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Imo E. Hoefer
- Laboratory of Experimental Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
- * E-mail:
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25
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Tzelepis F, Joseph J, Haddad EK, Maclean S, Dudani R, Agenes F, Peng SL, Sekaly RP, Sad S. Intrinsic role of FoxO3a in the development of CD8+ T cell memory. J Immunol 2013; 190:1066-75. [PMID: 23277488 PMCID: PMC3815477 DOI: 10.4049/jimmunol.1200639] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CD8(+) T cells undergo rapid expansion during infection with intracellular pathogens, which is followed by swift and massive culling of primed CD8(+) T cells. The mechanisms that govern the massive contraction and maintenance of primed CD8(+) T cells are not clear. We show in this study that the transcription factor, FoxO3a, does not influence Ag presentation and the consequent expansion of CD8(+) T cell response during Listeria monocytogenes infection, but plays a key role in the maintenance of memory CD8(+) T cells. The effector function of primed CD8(+) T cells as revealed by cytokine secretion and CD107a degranulation was not influenced by inactivation of FoxO3a. Interestingly, FoxO3a-deficient CD8(+) T cells displayed reduced expression of proapoptotic molecules BIM and PUMA during the various phases of response, and underwent reduced apoptosis in comparison with wild-type cells. A higher number of memory precursor effector cells and memory subsets was detectable in FoxO3a-deficient mice compared with wild-type mice. Furthermore, FoxO3a-deficient memory CD8(+) T cells upon transfer into normal or RAG1-deficient mice displayed enhanced survival. These results suggest that FoxO3a acts in a cell-intrinsic manner to regulate the survival of primed CD8(+) T cells.
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Affiliation(s)
- Fanny Tzelepis
- National Research Council of Canada, Institute for Biological Sciences, Ottawa, Ontario K1A 0R6, Canada
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26
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Olson MR, McDermott DS, Varga SM. The initial draining lymph node primes the bulk of the CD8 T cell response and influences memory T cell trafficking after a systemic viral infection. PLoS Pathog 2012; 8:e1003054. [PMID: 23236277 PMCID: PMC3516554 DOI: 10.1371/journal.ppat.1003054] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Accepted: 10/10/2012] [Indexed: 11/18/2022] Open
Abstract
Lymphocytic choriomeningitis virus (LCMV) causes a systemic infection in mice with virus replication occurring in both peripheral tissues and secondary lymphoid organs. Because of the rapid systemic dissemination of the virus, the secondary lymphoid organs responsible for the induction of the LCMV-specific CD8 T cell response are poorly defined. We show that the mediastinal lymph node (MedLN) serves as the primary draining lymph node following LCMV infection. In addition, we demonstrate that the MedLN is responsible for priming the majority of the virus-specific CD8 T cell response. Following resolution of the acute infection, the draining MedLN exhibits characteristics of a reactive lymph node including an increased presence of germinal center B cells and increased cellularity for up to 60 days post-infection. Furthermore, the reactive MedLN harbors an increased frequency of CD62L(-) effector memory CD8 T cells as compared to the non-draining lymph nodes. The accumulation of LCMV-specific CD62L(-) memory CD8 T cells in the MedLN is independent of residual antigen and is not a unique feature of the MedLN as footpad infection with LCMV leads to a similar increase of virus-specific CD62L(-) effector memory CD8 T cells in the draining popliteal lymph node. Our results indicate that CD62L(-) effector memory CD8 T cells are granted preferential access into the draining lymph nodes for an extended time following resolution of an infection.
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Affiliation(s)
- Matthew R. Olson
- Department of Microbiology, University of Iowa, Iowa City, Iowa, United States of America
| | - Daniel S. McDermott
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, Iowa, United States of America
| | - Steven M. Varga
- Department of Microbiology, University of Iowa, Iowa City, Iowa, United States of America
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, Iowa, United States of America
- Department of Pathology, University of Iowa, Iowa City, Iowa, United States of America
- * E-mail:
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Liu J, Liu JX, Xu SN, Quan JX, Tian LM, Guo Q, Liu J, Wang YF, Shi ZY. Association of P213S polymorphism of the L-selectin gene with type 2 diabetes and insulin resistance in Chinese population. Gene 2012; 509:286-90. [PMID: 22921892 DOI: 10.1016/j.gene.2012.07.086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 07/15/2012] [Accepted: 07/30/2012] [Indexed: 11/17/2022]
Abstract
AIMS L-selectin belongs to selectin family of adhesion molecule and participates in the generation and development of type 2 diabetes (T2D). In this study, we evaluated the relationship between the P213S polymorphism of L-selectin gene and T2D and insulin resistance in the Chinese population. METHODS We genotyped P213S polymorphism in 801 patients with T2D and 834 healthy controls in the Chinese population using polymerase chain reaction-ligase detection reaction (PCR-LDR) technique. Plasma glucose, insulin, lipid, blood urea nitrogen, creatinine and uric acid levels were measured by biochemical technique. RESULTS The frequency of 213PP genotype and P allele of the L-selectin gene in patients with T2D was significantly higher than that in controls (P=0.007; P=0.019, respectively). The relative risk of allele P suffered from T2D was 1.191 times higher than that of allele S. Moreover, the levels of FPG and HOMA-IR of PP and PS genotype carriers were significantly higher than those of SS genotype carriers in the T2D group (P<0.05). CONCLUSION These findings indicated that the P213S polymorphism of L-selectin gene may contribute to susceptibility to T2D and insulin resistance in the Chinese population, and P allele appears to be a risk factor for T2D.
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Affiliation(s)
- Jing Liu
- Department of Endocrinology, Gansu Provincial People's Hospital, 204 West Donggang Road, Lanzhou City 730000, Gansu Province, China.
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de Oliveira VL, Keijsers RRMC, van de Kerkhof PCM, Seyger MMB, Fasse E, Svensson L, Latta M, Norsgaard H, Labuda T, Hupkens P, van Erp PEJ, Joosten I, Koenen HJPM. Humanized mouse model of skin inflammation is characterized by disturbed keratinocyte differentiation and influx of IL-17A producing T cells. PLoS One 2012; 7:e45509. [PMID: 23094018 PMCID: PMC3477148 DOI: 10.1371/journal.pone.0045509] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Accepted: 08/21/2012] [Indexed: 12/14/2022] Open
Abstract
Humanized mouse models offer a challenging possibility to study human cell function in vivo. In the huPBL-SCID-huSkin allograft model human skin is transplanted onto immunodeficient mice and allowed to heal. Thereafter allogeneic human peripheral blood mononuclear cells are infused intra peritoneally to induce T cell mediated inflammation and microvessel destruction of the human skin. This model has great potential for in vivo study of human immune cells in (skin) inflammatory processes and for preclinical screening of systemically administered immunomodulating agents. Here we studied the inflammatory skin response of human keratinocytes and human T cells and the concomitant systemic human T cell response. As new findings in the inflamed human skin of the huPBL-SCID-huSkin model we here identified: 1. Parameters of dermal pathology that enable precise quantification of the local skin inflammatory response exemplified by acanthosis, increased expression of human β-defensin-2, Elafin, K16, Ki67 and reduced expression of K10 by microscopy and immunohistochemistry. 2. Induction of human cytokines and chemokines using quantitative real-time PCR. 3. Influx of inflammation associated IL-17A-producing human CD4+ and CD8+ T cells as well as immunoregulatory CD4+Foxp3+ cells using immunohistochemistry and -fluorescence, suggesting that active immune regulation is taking place locally in the inflamed skin. 4. Systemic responses that revealed activated and proliferating human CD4+ and CD8+ T cells that acquired homing marker expression of CD62L and CLA. Finally, we demonstrated the value of the newly identified parameters by showing significant changes upon systemic treatment with the T cell inhibitory agents cyclosporine-A and rapamycin. In summary, here we equipped the huPBL-SCID-huSkin humanized mouse model with relevant tools not only to quantify the inflammatory dermal response, but also to monitor the peripheral immune status. This combined approach will gain our understanding of the dermal immunopathology in humans and benefit the development of novel therapeutics for controlling inflammatory skin diseases.
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Affiliation(s)
- Vivian L. de Oliveira
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Romy R. M. C. Keijsers
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
- Dermatology Department, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | | | - Marieke M. B. Seyger
- Dermatology Department, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Esther Fasse
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Lars Svensson
- Department of Disease Pharmacology, LEO Pharma, Ballerup, Denmark
| | - Markus Latta
- Department of Disease Pharmacology, LEO Pharma, Ballerup, Denmark
| | - Hanne Norsgaard
- Department of Molecular Biomedicine, LEO Pharma, Ballerup, Denmark
| | - Tord Labuda
- Department of Molecular Biomedicine, LEO Pharma, Ballerup, Denmark
| | - Pieter Hupkens
- Department of Plastic Surgery Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Piet E. J. van Erp
- Dermatology Department, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Irma Joosten
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Hans J. P. M. Koenen
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
- * E-mail:
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Feuerecker M, Kaufmann I, Salam AP, Choukèr A. Effects of cryopreservation with polyethylene glycol on the expression of CD11b and CD62L on the surface of polymorphonuclear leukocytes. Cryo Letters 2012; 33:151-160. [PMID: 22576119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In experimental and clinical studies, expression of surface adhesion molecules such as ß2-integrine (CD11b) and L-selectin (CD62L) on polymorphonuclear leukocyte (PMNL) are investigated to assess certain crucial innate immune functions. Because the expression of CD11b and CD62L on PMNL can alter they cannot be quantified reliably when the time between blood draw and measurements is prolonged. Goals of this study were to test effects of cryopreservation on the expression of CD11b and CD62L on human PMNLs either under native conditions as well as after stimulation-dependant adhesion molecules´ expression pattern. CD11b and CD62L expression on PMNL can be cryopreserved with 10% of PEG-solution for at least one month at -60 degree C. This was observed in native, unstimulated as well as in stimulated cell-preparations. CD11b is very stable in contrast to CD62L expression which appears to be more susceptible to alteration due to freezing-thawing. However, the relative stimulus-dependant changes of activation can still be reflected.
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Affiliation(s)
- M Feuerecker
- Department of Anaesthesiology, Klinikum Großhadern, University of Munich, Munich
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Yang S, Liu F, Wang QJ, Rosenberg SA, Morgan RA. The shedding of CD62L (L-selectin) regulates the acquisition of lytic activity in human tumor reactive T lymphocytes. PLoS One 2011; 6:e22560. [PMID: 21829468 PMCID: PMC3145643 DOI: 10.1371/journal.pone.0022560] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Accepted: 06/27/2011] [Indexed: 01/13/2023] Open
Abstract
CD62L/L-selectin is a marker found on naïve T cells and further distinguishes central memory (Tcm, CD62L+) from effector memory (Tem, CD62L-) T cells. The regulation of CD62L plays a pivotal role in controlling the traffic of T lymphocytes to and from peripheral lymph nodes. CD62L is shed from the cell membrane following T cell activation, however, the physiological significance of this event remains to be elucidated. In this study, we utilized in vitro generated anti-tumor antigen T cells and melanoma lines as a model to evaluate the dynamics of CD62L shedding and expression of CD107a as a marker of lytic activity. Upon encounter, with matched tumor lines, antigen reactive T cells rapidly lose CD62L expression and this was associated with the acquisition of CD107a. By CD62L ELISA, we confirmed that this transition was mediated by the shedding of CD62L when T cells encountered specific tumor antigen. The introduction of a shedding resistant mutant of CD62L into the tumor antigen-reactive T cell line JKF6 impaired CD107a acquisition following antigen recognition and this was correlated with decreased lytic activity as measured by (51)Cr release assays. The linkage of the shedding of CD62L from the surface of anti-tumor T cells and acquisition of lytic activity, suggests a new function for CD62L in T cell effector functions and anti-tumor activity.
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Affiliation(s)
- Shicheng Yang
- Surgery Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Fang Liu
- Surgery Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Qiong J. Wang
- Surgery Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Steven A. Rosenberg
- Surgery Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Richard A. Morgan
- Surgery Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail:
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31
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Ohmichi Y, Hirakawa J, Imai Y, Fukuda M, Kawashima H. Essential role of peripheral node addressin in lymphocyte homing to nasal-associated lymphoid tissues and allergic immune responses. J Exp Med 2011; 208:1015-25. [PMID: 21518796 PMCID: PMC3092357 DOI: 10.1084/jem.20101786] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2010] [Accepted: 03/22/2011] [Indexed: 12/17/2022] Open
Abstract
Nasal-associated lymphoid tissue (NALT) is a mucosal immune tissue that provides immune responses against inhaled antigens. Lymphocyte homing to NALT is mediated by specific interactions between lymphocytes and high endothelial venules (HEVs) in NALT. In contrast to HEVs in other mucosal lymphoid tissues, NALT HEVs strongly express peripheral node addressins (PNAds) that bear sulfated glycans recognized by the monoclonal antibody MECA-79. We investigated the role of PNAd in lymphocyte homing to NALT using sulfotransferase N-acetylglucosamine-6-O-sulfotransferase (GlcNAc6ST) 1 and GlcNAc6ST-2 double knockout (DKO) mice. The expression of PNAd in NALT HEVs was eliminated in DKO mice. Short-term homing assays indicated that lymphocyte homing to NALT was diminished by 90% in DKO mice. Production of antigen-specific IgE and the number of sneezes in response to nasally administered ovalbumin were also substantially diminished. Consistently, the NALT of DKO mice showed reduced production of IL-4 and increased production of IL-10 together with an increase in CD4(+)CD25(+) regulatory T cells (T(reg) cells). Compared with the homing of CD4(+)CD25(-) conventional T cells, the homing of CD4(+)CD25(+) T(reg) cells to NALT was less dependent on the L-selectin-PNAd interaction but was partially dependent on PSGL-1 (P-selectin glycoprotein ligand 1) and CD44. These results demonstrate that PNAd is essential for lymphocyte homing to NALT and nasal allergic responses.
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Affiliation(s)
- Yukari Ohmichi
- Laboratory of Microbiology and Immunology and the Global Center of Excellence Program, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Jotaro Hirakawa
- Laboratory of Microbiology and Immunology and the Global Center of Excellence Program, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Yasuyuki Imai
- Laboratory of Microbiology and Immunology and the Global Center of Excellence Program, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Minoru Fukuda
- Glycobiology Unit, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Hiroto Kawashima
- Laboratory of Microbiology and Immunology and the Global Center of Excellence Program, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
- PRESTO, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan
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Stavarachi M, Panduru NM, Serafinceanu C, Moţa E, Moţa M, Cimponeriu D, Ion DA. Investigation of P213S SELL gene polymorphism in type 2 diabetes mellitus and related end stage renal disease. A case-control study. Rom J Morphol Embryol 2011; 52:995-998. [PMID: 22119815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
SELL (L-selectin) is a candidate gene for several complex diseases including diabetes mellitus and renal failure. Our aim was to investigate the involvement of P213S SELL gene polymorphism (rs2229569) in type 2 diabetes mellitus (T2DM) and related end stage renal disease (ESRD). Type 2 diabetes mellitus patients without ESRD (n=250) or with ESRD (n=90), ESRD patients without diabetes (n=119) and sex and age matched healthy subjects (n=459) were analyzed in this study. DNA samples from all these subjects were genotyped for the P213S polymorphism by PCR-RFLP technique. Statistical analysis indicated that SELL P213S genotypes and alleles were similar distributed in the patients and control groups (ORSS=0.37, CI 95%: 0.131>0.372>1.06, p=0.05, Yate's correction p=0.09, for T2DM patients without ESRD, ORSS=2.04, CI 95%: 0.365>2.047>1.465, p=0.4, Yate's correction p=0.67, for T2DM patients with ESRD and ORSS=1, CI95%: 0.198>1>5.057, p=1, Yate's correction p=0.67, for non-diabetic with ESRD patients). Also, no significant differences were noticed when we compared the ESRD subjects with diabetes vs. non-diabetic ones (OR=1.798, CI 95%: 0.392>1.798>8.245, p=0.44, Yate's correction p=0.7). No statistically significant results were found in order to sustain the hypothesis of association between SELL gene P213S polymorphism, type 2 diabetes mellitus and end stage renal disease.
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Eitam H, Vaya J, Brosh A, Orlov A, Khatib S, Izhaki I, Shabtay A. Differential stress responses among newly received calves: variations in reductant capacity and Hsp gene expression. Cell Stress Chaperones 2010; 15:865-76. [PMID: 20401744 PMCID: PMC3024063 DOI: 10.1007/s12192-010-0195-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Revised: 03/25/2010] [Accepted: 03/26/2010] [Indexed: 10/19/2022] Open
Abstract
Bovine respiratory disease complex (BRD), a major economic concern to the beef cattle industry all over the world, is triggered by physical, biological and psychological stresses. It is becoming noticeable that the key to reducing BRD appears to be centered at reducing the response to stress. The aims of the present study were to detect individual variations in the stress response of newly received young calves through their leukocyte heat shock protein (Hsp) response, selected neutrophil-related gene expression and oxidative stress, and relate them to pulmonary adhesions at slaughter, an indicative sign of clinical and subclinical episodes of BRD at an early age. Differential expression patterns of Hsp60 and Hsp70A1A were revealed in newly received calves 1 h, 5 h and 1 day after arrival, distinguishing between stress-responsive and non-stress-responsive individuals. Plasma cortisol was also indicative of stress-responsive and non-stress-responsive individuals, 1 h and 5 h after arrival. At the longer term, β-glycan levels were highest 7 days after arrival and significantly correlated with an adhesion-free phenotype at slaughter. Oxidative stress responses, measured through the oxidation products of the exogenous linoleoyl tyrosine (LT) marker, revealed that hydroperoxidation and epoxidation of membranes may readily occur. Based on the LT oxidation products and levels of β-glycan, we present a discriminant analysis model, according to which vulnerable individuals may be predicted at near 100% probability 7 days after arrival. Since clinical signs of BRD may often go undetected in feedlot calves, such a model, after its examination in large-scale experiments, may be a reliable tool for an early prediction of subclinical signs of BRD.
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Affiliation(s)
- Harel Eitam
- Department of Ruminant Science & Genetics, Institute of Animal Science, Newe Ya’ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095 Israel
- Department of Evolutionary and Environmental Biology, Faculty of Science and Science Education, University of Haifa, 31905 Tivon, Israel
| | - Jacob Vaya
- Migal, Galilee Technological Center, Kiryat Shmona, 10200 Israel
| | - Arieh Brosh
- Department of Ruminant Science & Genetics, Institute of Animal Science, Newe Ya’ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095 Israel
| | - Ala Orlov
- Department of Ruminant Science & Genetics, Institute of Animal Science, Newe Ya’ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095 Israel
| | - Soliman Khatib
- Migal, Galilee Technological Center, Kiryat Shmona, 10200 Israel
| | - Ido Izhaki
- Department of Evolutionary and Environmental Biology, Faculty of Science and Science Education, University of Haifa, 31905 Tivon, Israel
| | - Ariel Shabtay
- Department of Ruminant Science & Genetics, Institute of Animal Science, Newe Ya’ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095 Israel
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Yoshizaki A, Yanaba K, Iwata Y, Komura K, Ogawa A, Akiyama Y, Muroi E, Hara T, Ogawa F, Takenaka M, Shimizu K, Hasegawa M, Fujimoto M, Tedder TF, Sato S. Cell adhesion molecules regulate fibrotic process via Th1/Th2/Th17 cell balance in a bleomycin-induced scleroderma model. J Immunol 2010; 185:2502-15. [PMID: 20624949 PMCID: PMC3733122 DOI: 10.4049/jimmunol.0901778] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Mice s.c. injected with bleomycin, an experimental model for human systemic sclerosis, develop skin and lung fibrosis, which is mediated by inflammatory cell infiltration. This process is highly regulated by multiple adhesion molecules and does not require Ag sensitization. To assess the role of adhesion molecules in this pathogenetic process, bleomycin-induced fibrosis was examined in mice lacking adhesion molecules. L-selectin and/or ICAM-1 deficiency inhibited skin and lung fibrosis with decreased Th2 and Th17 cytokines and increased Th1 cytokines. In contrast, P-selectin deficiency, E-selectin deficiency with or without P-selectin blockade, or P-selectin glycoprotein ligand 1 (PSGL-1) deficiency augmented the fibrosis in parallel with increased Th2 and Th17 cytokines and decreased Th1 cytokines. Furthermore, loss of L-selectin and/or ICAM-1 reduced Th2 and Th17 cell numbers in bronchoalveolar lavage fluid, whereas loss of P-selectin, E-selectin, or PSGL-1 reduced Th1 cell numbers. Moreover, Th1 cells exhibited higher PSGL-1 expression and lower expression of LFA-1, a ligand for ICAM-1, whereas Th2 and Th17 cells showed higher LFA-1 and lower PSGL-1 expression. This study suggests that L-selectin and ICAM-1 regulate Th2 and Th17 cell accumulation into the skin and lung, leading to the development of fibrosis, and that P-selectin, E-selectin, and PSGL-1 regulate Th1 cell infiltration, resulting in the inhibition of fibrosis.
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Affiliation(s)
- Ayumi Yoshizaki
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Koichi Yanaba
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yohei Iwata
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kazuhiro Komura
- Department of Dermatology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Asako Ogawa
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yuichiro Akiyama
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Eiji Muroi
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Toshihide Hara
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Fumihide Ogawa
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Motoi Takenaka
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kazuhiro Shimizu
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Minoru Hasegawa
- Department of Dermatology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Thomas F. Tedder
- Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA
| | - Shinichi Sato
- Department of Dermatology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
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Chang YJ, Zhao XY, Huo MR, Huang XJ. Expression of CD62L on Donor CD4+ T Cells in Allografts: Correlation with Graft-Versus-Host Disease after Unmanipulated Allogeneic Blood and Marrow Transplantation. J Clin Immunol 2009; 29:696-704. [PMID: 19462221 DOI: 10.1007/s10875-009-9293-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Accepted: 04/13/2009] [Indexed: 12/19/2022]
Affiliation(s)
- Ying-Jun Chang
- Peking University Institute of Hematology, Peking University People's hospital, Beijing 100044, China
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Hidalgo A, Chang J, Jang JE, Peired AJ, Chiang EY, Frenette PS. Heterotypic interactions enabled by polarized neutrophil microdomains mediate thromboinflammatory injury. Nat Med 2009; 15:384-91. [PMID: 19305412 PMCID: PMC2772164 DOI: 10.1038/nm.1939] [Citation(s) in RCA: 265] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Accepted: 02/05/2009] [Indexed: 12/15/2022]
Abstract
Selectins and their ligands mediate leukocyte rolling, allowing interactions with chemokines that lead to integrin activation and arrest. Here we show that E-selectin is crucial for generating a secondary wave of activating signals, transduced specifically by E-selectin ligand-1, that induces polarized, activated alpha(M)beta(2) integrin clusters at the leading edge of crawling neutrophils, allowing capture of circulating erythrocytes or platelets. In a humanized mouse model of sickle cell disease, the capture of erythrocytes by alpha(M)beta(2) microdomains leads to acute lethal vascular occlusions. In a model of transfusion-related acute lung injury, polarized neutrophils capture circulating platelets, resulting in the generation of oxidative species that produce vascular damage and lung injury. Inactivation of E-selectin or alpha(M)beta(2) prevents tissue injury in both inflammatory models, suggesting broad implications of this paradigm in thromboinflammatory diseases. These results indicate that endothelial selectins can influence neutrophil behavior beyond its canonical rolling step through delayed, organ-damaging, polarized activation.
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Affiliation(s)
- Andrés Hidalgo
- Mount Sinai School of Medicine, Departments of Medicine, New York, NY 10029
| | - Jungshan Chang
- Mount Sinai School of Medicine, Departments of Medicine, New York, NY 10029
| | - Jung-Eun Jang
- Mount Sinai School of Medicine, Departments of Medicine, New York, NY 10029
| | - Anna J. Peired
- Mount Sinai School of Medicine, Departments of Medicine, New York, NY 10029
| | - Elaine Y. Chiang
- Mount Sinai School of Medicine, Departments of Medicine, New York, NY 10029
| | - Paul S. Frenette
- Mount Sinai School of Medicine, Departments of Medicine, New York, NY 10029
- Gene and Cell Medicine, Black Family Stem Cell Institute, New York, NY 10029
- Immunology Institute, New York, NY 10029
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Thomas SN, Zhu F, Schnaar RL, Alves CS, Konstantopoulos K. Carcinoembryonic antigen and CD44 variant isoforms cooperate to mediate colon carcinoma cell adhesion to E- and L-selectin in shear flow. J Biol Chem 2008; 283:15647-55. [PMID: 18375392 PMCID: PMC2414264 DOI: 10.1074/jbc.m800543200] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 03/19/2008] [Indexed: 12/12/2022] Open
Abstract
Selectin-mediated adhesion of tumor cells to platelets, leukocytes, and endothelial cells may regulate their hematogenous dissemination in the microvasculature. We recently identified CD44 variant isoforms (CD44v) as functional P-, but not E- or L-, selectin ligands on colon carcinoma cells. Moreover, an approximately 180-kDa sialofucosylated glycoprotein(s) mediated selectin binding in CD44-knockdown cells. Using immunoaffinity chromatography and tandem mass spectrometry, we identify this glycoprotein as the carcinoembryonic antigen (CEA). Blot rolling assays and flow-based adhesion assays using microbeads coated with CEA immunopurified from LS174T colon carcinoma cells and selectins as substrate reveal that CEA possesses E- and L-, but not P-, selectin ligand activity. CEA on CD44-knockdown LS174T cells exhibits higher HECA-452 immunoreactivity than CEA on wild-type cells, suggesting that CEA functions as an alternative acceptor for selectin-binding glycans. The enhanced expression of HECA-452 reactive epitopes on CEA from CD44-knockdown cells correlates with the increased CEA avidity for E- but not L-selectin. Through the generation of stable knockdown cell lines, we demonstrate that CEA serves as an auxiliary L-selectin ligand, which stabilizes L-selectin-dependent cell rolling against fluid shear. Moreover, CEA and CD44v cooperate to mediate colon carcinoma cell adhesion to E- and L-selectin at elevated shear stresses. The novel finding that CEA is an E- and L-selectin ligand may explain the enhanced metastatic potential associated with tumor cell CEA overexpression and the supportive role of selectins in metastasis.
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Affiliation(s)
- Susan N. Thomas
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
| | - Fei Zhu
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
| | - Ronald L. Schnaar
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
| | - Christina S. Alves
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
| | - Konstantinos Konstantopoulos
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
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Obar JJ, Khanna KM, Lefrançois L. Endogenous naive CD8+ T cell precursor frequency regulates primary and memory responses to infection. Immunity 2008; 28:859-69. [PMID: 18499487 PMCID: PMC2836785 DOI: 10.1016/j.immuni.2008.04.010] [Citation(s) in RCA: 303] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2007] [Revised: 02/21/2008] [Accepted: 04/04/2008] [Indexed: 10/22/2022]
Abstract
Through genetic recombination, the adaptive immune system generates a diverse T cell repertoire allowing recognition of a vast spectrum of foreign antigens. Any given CD8+ T cell specificity is thought to be rare, but none have been directly quantified. Here, major histocompatibility complex tetramer and magnetic-bead technology were coupled to quantitate naive antigen-specific CD8+ T cells and the early response to infection. Among six specificities measured, the number of naive antigen-specific precursors ranged from approximately 80 to 1200 cells/mouse. After vesicular stomatitis virus infection, the antigen-specific CD8+ T cell response occurred in discrete phases: prolonged activation of a subset of cells over the first 72 hr followed by a rapid proliferative burst. Naive precursor frequency altered response kinetics and regulated immunodominance, as well as the time required for the responding population to shift toward CD62L(hi) memory cells. Thus, initial endogenous precursor frequencies were surprisingly diverse and not only regulated initial immune response characteristics but also controlled memory CD8+ T cell lineage decisions.
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Affiliation(s)
- Joshua J. Obar
- Department of Immunology, University of Connecticut Health Center, 263 Farmington Avenue, Farmington CT 06030-1319, USA
| | - Kamal M. Khanna
- Department of Immunology, University of Connecticut Health Center, 263 Farmington Avenue, Farmington CT 06030-1319, USA
| | - Leo Lefrançois
- Department of Immunology, University of Connecticut Health Center, 263 Farmington Avenue, Farmington CT 06030-1319, USA
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39
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Almeida PE, Weber PSD, Burton JL, Zanella AJ. Depressed DHEA and increased sickness response behaviors in lame dairy cows with inflammatory foot lesions. Domest Anim Endocrinol 2008; 34:89-99. [PMID: 17229542 DOI: 10.1016/j.domaniend.2006.11.006] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2006] [Revised: 10/20/2006] [Accepted: 11/29/2006] [Indexed: 11/20/2022]
Abstract
Lameness is a multifactorial condition influenced by the environment, genetics, management and nutrition. Detection of lameness is subjective and currently limited to visual locomotion observations which lack reliability and sensitivity. The objective of this study was to search for potential biomarkers of inflammatory foot lesions that underlie most cases of lameness in dairy cows, with a focus on the sickness response and relevant endocrine, immune and behavioral changes. Serum and peripheral blood mononuclear cells (PBMC) were collected from eight sound and eight lame high-producing Holstein cows. Immune cell activation was investigated in PBMCs using a candidate gene approach in which the expression of pro-opiomelanocortin, interleukin-1beta, l-selectin, matrix metalloproteinase-9 and glucocorticoid receptor-alpha was measured via quantitative real time-RT-PCR. Endocrine changes were investigated by monitoring serum concentrations of cortisol and dehydroepiandrosterone (DHEA). Additionally, systematic behavioral observations were carried out to characterize a behavioral profile associated with a sickness response typical of this condition. Lame cows showed significantly lower eating (P=0.01) and ruminating (P=0.01) behaviors and higher incidence of self-grooming (P=0.04) compared to sound cows. Lame cows also showed a 23% decrease in serum DHEA (P=0.01) and 65% higher cortisol:DHEA ratio (P=0.06) compared to sound cows. However, no significant differences were found in candidate gene expression between lame and sound cows. In association with sickness behaviors, serum DHEA concentration and cortisol:DHEA ratio are promising objective indicators of inflammatory foot lesions in dairy cattle and may be useful as diagnostic targets for animals in need of treatment.
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MESH Headings
- Animals
- Behavior, Animal/physiology
- Cattle
- Cattle Diseases/blood
- Cattle Diseases/genetics
- Cattle Diseases/immunology
- Cattle Diseases/physiopathology
- Dehydroepiandrosterone/blood
- Female
- Foot Diseases/genetics
- Foot Diseases/immunology
- Foot Diseases/physiopathology
- Foot Diseases/veterinary
- Gene Expression
- Hydrocortisone/blood
- Interleukin-1beta/blood
- Interleukin-1beta/genetics
- L-Selectin/biosynthesis
- L-Selectin/blood
- L-Selectin/genetics
- Lameness, Animal/blood
- Lameness, Animal/genetics
- Lameness, Animal/immunology
- Lameness, Animal/physiopathology
- Leukocytes, Mononuclear/immunology
- Matrix Metalloproteinase 9/blood
- Matrix Metalloproteinase 9/genetics
- Pro-Opiomelanocortin/biosynthesis
- Pro-Opiomelanocortin/blood
- Pro-Opiomelanocortin/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Glucocorticoid/blood
- Receptors, Glucocorticoid/genetics
- Reverse Transcriptase Polymerase Chain Reaction/veterinary
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Affiliation(s)
- P E Almeida
- Immunogenetics Laboratory, Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
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40
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Appenheimer MM, Girard RA, Chen Q, Wang WC, Bankert KC, Hardison J, Bain MD, Ridgley F, Sarcione EJ, Buitrago S, Kothlow S, Kaspers B, Robert J, Rose-John S, Baumann H, Evans SS. Conservation of IL-6 trans-signaling mechanisms controlling L-selectin adhesion by fever-range thermal stress. Eur J Immunol 2007; 37:2856-67. [PMID: 17823890 DOI: 10.1002/eji.200636421] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Fever is associated with improved survival during infection in endothermic and ectothermic species although the protective mechanisms are largely undefined. Previous studies indicate that fever-range thermal stress increases the binding activity of the L-selectin homing receptor in human or mouse leukocytes, thereby promoting trafficking to lymphoid tissues across high endothelial venules (HEV). Here, we examined the evolutionary conservation of thermal regulation of L-selectin-like adhesion. Leukocytes from animals representing four taxa of vertebrates (mammals, avians, amphibians, teleosts) were shown to mediate L-selectin-like adhesion under shear to MECA-79-reactive ligands on mouse HEV in cross-species in vitro adherence assays. L-selectin-like binding activity was markedly increased by fever-range thermal stress in leukocytes of all species examined. Comparable increases in L-selectin-like adhesion were induced by thermal stress, IL-6, or the IL-6/soluble IL-6 receptor fusion protein, hyper-IL-6. Analysis of the molecular basis of thermal regulation of L-selectin-like adhesion identified a common IL-6 trans-signaling mechanism in endotherms and ectotherms that resulted in activation of JAK/STAT signaling and was inhibited by IL-6 neutralizing antibodies or recombinant soluble gp130. Conservation of IL-6-dependent mechanisms controlling L-selectin adhesion over hundreds of millions of years of vertebrate evolution strongly suggests that this is a beneficial focal point regulating immune surveillance during febrile inflammatory responses.
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Abstract
PROBLEM To investigate the molecular mechanism of endometriosis, gene expression profiling was analyzed in a rat endometriosis model. METHOD OF STUDY An endometriosis model was induced by uterine autotransplantation in the peritoneal cavity on a female-SD rat (8 weeks old). As control samples, the normal uterine tissues were used. The gene expression was compared between endometriotic lesions and normal uterine tissues by cDNA microarray analysis, quantitative real time RT-PCR and immunohistochemistry. RESULTS The expression of 71 genes was upregulated and that of 45 genes was downregulated in the endometriotic lesions compared to normal uterine tissues. The upregulated genes included genes encoding cytokines, chemokines, growth factors and cell adhesion molecules. The levels of transcripts of osteopontin, Lyn, Vav1, Runx1, and l-selectin in the endometriotic lesions were 130, 10, 10, 12 and 46-fold higher than the respective levels in the eutopic endometrial samples. CONCLUSION The results suggest that osteopontin, Lyn, Vav1, Runx1, and l-selectin play important roles in the pathogenesis of endometriosis.
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Affiliation(s)
- Ryo Konno
- Department of Gynecology, Omiya Medical Center Jichi Medical University, Amanuma-cho, Omiya, Saitama, Japan.
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42
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Priatel JJ, Chen X, Zenewicz LA, Shen H, Harder KW, Horwitz MS, Teh HS. Chronic immunodeficiency in mice lacking RasGRP1 results in CD4 T cell immune activation and exhaustion. J Immunol 2007; 179:2143-52. [PMID: 17675473 DOI: 10.4049/jimmunol.179.4.2143] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The Ras-guanyl nucleotide exchange factor RasGRP1 is an important link between TCR-mediated signaling and the activation of Ras and its downstream effectors. RasGRP1 is especially critical for the survival and differentiation of developing thymocytes whereas negative selection of thymocytes bearing an autoreactive TCR appears to be RasGRP1 independent. Despite apparently normal central tolerance, RasGRP1(-/-) mice spontaneously acquire an acutely activated and proliferating CD4 T cell population that exhibits characteristics of T cell exhaustion, including strong expression of programmed cell death-1. To elucidate the basis for RasGRP1(-/-) CD4 T cell immune activation, we initiated a series of adoptive transfer experiments. Remarkably, the copious amounts of cytokines and self-Ags present in hosts made lymphopenic through irradiation failed to induce the majority of RasGRP1(-/-) CD4 T cells to enter cell cycle. However, their infusion into either congenitally T cell- or T/B cell-deficient recipients resulted in robust proliferation and L-selectin down-regulation. These findings imply that the activation and proliferation of RasGRP1(-/-) CD4 T cells may be dependent on their residence in a chronically immunocompromised environment. Accordingly, bacterial and viral challenge experiments revealed that RasGRP1(-/-) mice possess a weakened immune system, exhibiting a T cell-autonomous defect in generating pathogen-specific T cells and delayed pathogen clearance. Collectively, our study suggests that chronic T cell immunodeficiency in RasGRP1(-/-) mice may be responsible for CD4 T cell activation, proliferation, and exhaustion.
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Affiliation(s)
- John J Priatel
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada
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43
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Lucchinetti E, Aguirre J, Feng J, Zhu M, Suter M, Spahn DR, Härter L, Zaugg M. Molecular evidence of late preconditioning after sevoflurane inhalation in healthy volunteers. Anesth Analg 2007; 105:629-40. [PMID: 17717216 DOI: 10.1213/01.ane.0000278159.88636.aa] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Late preconditioning by volatile anesthetics evolves in response to transcriptional changes. We hypothesized that sevoflurane inhalation would modify the transcriptome in human blood and modulate the expression of adhesion molecules in white blood cells consistent with the occurrence of a late preconditioning phase. METHODS Five healthy male subjects inhaled sevoflurane at an end-tidal concentration of 0.5%-1.0% for 60 min. Venous blood samples were collected at baseline, after 15 and 60 min of inhalation, and 6, 24, 48, and 72 h thereafter and immediately processed for flow cytometry and mRNA extraction and hybridization to Affymetrix U133 Plus 2.0 microarrays. Data were analyzed using Significance Analysis of Microarray and Gene Set Enrichment Analysis and confirmed by real-time reverse transcription polymerase chain reaction. L-selectin (CD62L) and beta2-integrin (CD11b) expression was determined on granulocytes and monocytes using flow cytometry. RESULTS Sevoflurane inhalation rapidly and markedly altered gene expression in white blood cells. Key transcripts potentially involved in late preconditioning or organ protection including paraoxonase, 12-lipoxygenase, heat shock protein 40, chemokine ligand 5, and phosphodiesterase 5A were regulated in response to sevoflurane. Sevoflurane further decreased transcripts involved in peroxisome proliferator-activated receptor gamma coactivator-1alpha (PGC-1alpha) signaling and fatty acid oxidation. Reduced L-selectin (CD62L) expression on granulocytes accompanied with increased resistance to inflammatory activation was present at 24 to 48 h after sevoflurane exposure. CONCLUSIONS Sevoflurane at subanesthetic concentrations modifies blood transcriptome and decreases the expression of the proinflammatory L-selectin (CD62L), consistent with a "second window of protection" in humans.
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Jalkanen S, Karikoski M, Mercier N, Koskinen K, Henttinen T, Elima K, Salmivirta K, Salmi M. The oxidase activity of vascular adhesion protein-1 (VAP-1) induces endothelial E- and P-selectins and leukocyte binding. Blood 2007; 110:1864-70. [PMID: 17548577 DOI: 10.1182/blood-2007-01-069674] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractLeukocyte migration from the blood into tissues is pivotal in immune homeostasis and in inflammation. During the multistep extravasation cascade, endothelial selectins (P- and E-selectin) and vascular adhesion protein-1 (VAP-1), a cell-surface–expressed oxidase, are important in tethering and rolling. Here, we studied the signaling functions of the catalytic activity of VAP-1. Using human endothelial cells transfected with wild-type VAP-1 and an enzymatically inactive VAP-1 point mutant, we show that transcription and translation of E- and P-selectins are induced through the enzymatic activity of VAP-1. Moreover, use of VAP-1–deficient animals and VAP-1–deficient animals carrying the human VAP-1 as a transgene show a VAP-enzyme activity–dependent induction of P-selectin in vivo. Up-regulation of P-selectin was found both in high endothelial venules in lymphoid tissues and in flat-walled vessels in noninflamed tissues. VAP-1 activity in vivo led to increased P-selectin–dependent binding of lymphocytes to endothelial cells. These data show that the oxidase reaction catalyzed by VAP-1 alters the expression of other molecules involved in the leukocyte extravasation cascade. Our findings indicate cross-talk between adhesion molecules involved in the tethering and rolling of leukocytes and show that VAP-1–dependent signaling can prime the vessels for an enhanced inflammatory response.
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Affiliation(s)
- Sirpa Jalkanen
- MediCity Research Laboratory, University of Turku, Turku, Finland
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45
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Ahmad I, Hoessli DC, Gupta R, Walker-Nasir E, Rafik SM, Choudhary MI, Shakoori AR. In silico determination of intracellular glycosylation and phosphorylation sites in human selectins: implications for biological function. J Cell Biochem 2007; 100:1558-72. [PMID: 17230456 DOI: 10.1002/jcb.21156] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Post-translational modifications provide the proteins with the possibility to perform functions in addition to those determined by their primary sequence. However, analysis of multifunctional protein structures in the environment of cells and body fluids is made especially difficult by the presence of other interacting proteins. Bioinformatics tools are therefore helpful to predict protein multifunctionality through the identification of serine and threonine residues wherein the hydroxyl group is likely to become modified by phosphorylation or glycosylation. Moreover, serines and threonines where both modifications are likely to occur can also be predicted (YinYang sites), to suggest further functional versatility. Structural modifications of hydroxyl groups of P-, E-, and L-selectins have been predicted and possible functions resulting from such modifications are proposed. Functional changes of the three selectins are based on the assumption that transitory and reversible protein modifications by phosphate and O-GlcNAc cause specific conformational changes and generate binding sites for other proteins. The computer-assisted prediction of glycosylation and phosphorylation sites in selectins should be helpful to assess the contribution of dynamic protein modifications in selectin-mediated inflammatory responses and cell-cell adhesion processes that are difficult to determine experimentally.
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Affiliation(s)
- Ishtiaq Ahmad
- Institute of Molecular Sciences and Bioinformatics, Lahore, Pakistan
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46
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Abstract
OBJECTIVE Graves' disease (GD) is an autoimmune disorder with genetic predisposition. There is strong evidence that members of the selectin family participate in the interaction between leucocytes and the endothelium, as well as in inflammatory cell recruitment. Moreover, a high serum level of a soluble form of L-selectin (SL-selectin) has been reported in untreated GD patients. However, the impact of L-selectin polymorphisms on GD has not yet been investigated. The aim of the present study was to elucidate whether L-selectin gene polymorphisms were associated with the development of GD. SUBJECTS AND DESIGN L-selectin gene polymorphisms were investigated in 230 Chinese GD patients and 208 healthy control subjects without antithyroid autoantibodies or a family history of autoimmune disorders. Two L-selectin SNPs were genotyped by the PCR-restriction fragment length polymorphism (PCR-RFLP) method. RESULTS A C/T polymorphism at position -642 of the promoter region and a Pro213Ser (c.725 C-T) polymorphism in exon 6 were examined using PCR-RFLP. There was a significant increase in -642T allele frequency in GD patients compared with healthy controls (70 vs. 62%; P = 0.0126; P(c) = 0.0252). The frequency of the c.725C allele in exon 6 also appeared higher in GD patients than in controls. Haplotype analysis showed a significant decrease in the -642C/c.725T haplotype in GD patients (26 vs. 34%; P = 0.0095; Pc = 0.0190). However there was no association between polymorphisms and certain GD clinical phenotypes, including age of onset and ophthalmopathy. CONCLUSIONS L-selectin gene polymorphisms are associated with GD susceptibility in Chinese patients.
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Affiliation(s)
- Hao-Yan Chen
- Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrinology and Metabolism, Shanghai Key Laboratory for Endocrine Tumors, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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47
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Yukami T, Hasegawa M, Matsushita Y, Fujita T, Matsushita T, Horikawa M, Komura K, Yanaba K, Hamaguchi Y, Nagaoka T, Ogawa F, Fujimoto M, Steeber DA, Tedder TF, Takehara K, Sato S. Endothelial selectins regulate skin wound healing in cooperation with L-selectin and ICAM-1. J Leukoc Biol 2007; 82:519-31. [PMID: 17595378 DOI: 10.1189/jlb.0307152] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Skin wound healing is mediated by inflammatory cell infiltration that is highly regulated by various adhesion molecules. Mice lacking intercellular adhesion molecule-1 (ICAM-1) delayed skin wound healing and mice lacking both L-selectin and ICAM-1 (L-selectin/ICAM-1(-/-)) show more delayed wound healing. Deficiency of both endothelial selectins (E-selectin or P-selectin) also delays wound healing. However, the relative contribution and interaction of selectins and ICAM-1 to the wound healing remain unknown. To clarify them, repair of excisional wounds was examined in L-selectin/ICAM-1(-/-) mice, wild-type mice with both E- and P-selectin blockade, and L-selectin/ICAM-1(-/-) mice with both E- and P-selectin blockade. Wild-type mice with both E- and P-selectin blockade showed delayed wound healing that was comparable with that in L-selectin/ICAM-1(-/-) mice. Combined E- and P-selectin blockade in L-selectin/ICAM-1(-/-) mice resulted in more significant delay. Mice lacking or blocked for adhesion molecules also showed suppressed keratinocyte migration, angiogenesis, granulation tissue formation, leukocyte infiltration, and cytokine expression, including transforming growth factor-beta and interleukin-6. Application of basic fibroblast growth factor (bFGF) but not platelet-derived growth factor to the wounds significantly improved wound healing in L-selectin/ICAM-1(-/-) mice with both E- and P-selectin blockade. bFGF significantly increased the leukocyte infiltration and subsequent fibrogenic cytokine production, as well as keratinocyte migration, angiogenesis, and collagen synthesis despite the loss of four kinds of adhesion molecules. These results indicate that skin wound healing is regulated cooperatively by all selectins and ICAM-1 and may provide critical information for the therapy of skin wounds.
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Affiliation(s)
- Toru Yukami
- Department of Dermatology, Kanazawa University Graduate School of Medical Science, 13-1, Takara-machi, Kanazawa 920-8641, Japan
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Matsushita Y, Hasegawa M, Matsushita T, Fujimoto M, Horikawa M, Fujita T, Kawasuji A, Ogawa F, Steeber DA, Tedder TF, Takehara K, Sato S. Intercellular Adhesion Molecule-1 Deficiency Attenuates the Development of Skin Fibrosis in Tight-Skin Mice. J Immunol 2007; 179:698-707. [PMID: 17579093 DOI: 10.4049/jimmunol.179.1.698] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The tight-skin (TSK/+) mouse, a genetic model for systemic sclerosis, develops cutaneous fibrosis. Although a fibrillin 1 gene mutation and immunological abnormalities have been demonstrated, the roles of adhesion molecules have not been investigated. To directly assess roles of adhesion molecules in skin fibrosis, TSK/+ mice lacking L-selectin and/or ICAM-1 were generated. The deficiency of ICAM-1, but not L-selectin, significantly suppressed ( approximately 48%) the development of skin sclerosis in TSK/+ mice. Similarly, ICAM-1 antisense oligonucleotides inhibited skin fibrosis in TSK/+ mice. Although T cell infiltration was modest into the skin of TSK/+ mice, ICAM-1 deficiency down-regulated this migration, which is consistent with the established roles of endothelial ICAM-1 in leukocyte infiltration. In addition, altered phenotype or function of skin fibroblasts was remarkable and dependent on ICAM-1 expression in TSK/+ mice. ICAM-1 expression was augmented on TSK/+ dermal fibroblasts stimulated with IL-4. Although growth or collagen synthesis of TSK/+ fibroblasts cultured with IL-4 was up-regulated, it was suppressed by the loss or blocking of ICAM-1. Collagen expression was dependent on the strain of fibroblasts, but not on the strain of cocultured T cells. Thus, our findings indicate that ICAM-1 expression contributes to the development of skin fibrosis in TSK/+ mice, especially via ICAM-1 expressed on skin fibroblasts.
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Affiliation(s)
- Yukiyo Matsushita
- Department of Dermatology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
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Bai A, Hu H, Yeung M, Chen J. Krüppel-Like Factor 2 Controls T Cell Trafficking by Activating L-Selectin (CD62L) and Sphingosine-1-Phosphate Receptor 1 Transcription. J Immunol 2007; 178:7632-9. [PMID: 17548599 DOI: 10.4049/jimmunol.178.12.7632] [Citation(s) in RCA: 142] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Krüppel-like factor 2 (KLF2) is a member of zinc-finger transcription factors. Based on its expression in naive and memory T cells and the activated phenotype of few T cells in mice lacking KLF2 in the lymphoid lineage, KLF2 is postulated to regulate T cell homeostasis by promoting cell quiescence. In this study, we show that in reporter gene assays KLF2 directly activates the promoters of both CD62L and sphingosine-1-phosphate receptor 1 (S1P1), whose expression is critical for T cell egress from the thymus and homing to the lymph nodes. Correspondingly, exogenous KLF2 expression in primary T cells significantly up-regulates both CD62L and S1P1. Following adoptive transfer, KLF2-transduced T cells are much more efficient in homing to lymphoid organs than nontransduced T cells. These findings suggest that KLF2 regulates T cell homeostasis at least partly by controlling CD62L and S1P1 expression, and therefore T cell egress from the thymus and circulation in the periphery.
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Affiliation(s)
- Ailin Bai
- Center for Cancer Research and Department of Biology, Massachusetts Institute of Technology, 40 Ames Street, Cambridge, MA 02139, USA
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50
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Ostanin DV, Furr KL, Pavlick KP, Gray L, Kevil CG, Shukla D, D'Souza D, Hoffman JM, Grisham MB. T cell-associated CD18 but not CD62L, ICAM-1, or PSGL-1 is required for the induction of chronic colitis. Am J Physiol Gastrointest Liver Physiol 2007; 292:G1706-14. [PMID: 17332469 DOI: 10.1152/ajpgi.00573.2006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The induction and perpetuation of chronic colitis are thought to involve a complex set of adhesive interactions between T cells and endothelial cells located on the vasculature within secondary lymphoid tissue and the intestine. The objective of this study was to assess the roles of T cell-associated CD18, CD62L (L-selectin), ICAM-1, and P-selectin glycoprotein ligand-1 (PSGL-1) in the induction of chronic colitis in mice. CD4(+)CD25(-) T cells derived from either wild-type (WT), CD18-deficient [CD18 knockout (KO)], CD62L KO, ICAM-1 KO, or PSGL-1 KO mice were adoptively transferred into recombinase activating gene-1 (RAG-1)-deficient mice (RAG KO mice) to assess the potential of these T cells to induce chronic colitis. At 8-10 wk following T cell transfer, we observed moderate to severe colitis as assessed by increases in colon weight-to-length ratios and by blinded histopathological analysis. In contrast, we found that transfer of CD18 KO T cells into RAG KO recipients resulted in the significant attenuation of colonic inflammation in these mice. Furthermore, we observed fewer infiltrating CD4(+) T cells in the colonic lamina propria in the CD18 KO-->RAG KO group compared with the WT-->RAG KO group. Finally, message levels of colonic TNF-alpha, IL-1beta, and IFN-gamma were significantly reduced in CD18 KO-->RAG KO mice compared with colitic control animals. We conclude that T cell-associated CD18, but not CD62L, ICAM-1, or PSGL-1, is required for the development of chronic colitis.
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Affiliation(s)
- Dmitry V Ostanin
- Dept. of Molecular and Cellular Physiology, Louisana State Univ. Health Sciences Center, 1501 Kings Highway, PO Box 33932, Shreveport, LA 71130-3932, USA
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