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Shen Y, Zhang Y, Zhou Z, Wang J, Han D, Sun J, Chen G, Tang Q, Sun W, Chen L. Dysfunction of macrophages leads to diabetic bone regeneration deficiency. Front Immunol 2022; 13:990457. [PMID: 36311779 PMCID: PMC9613949 DOI: 10.3389/fimmu.2022.990457] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 10/03/2022] [Indexed: 11/22/2022] Open
Abstract
Insufficient bone matrix formation caused by diabetic chronic inflammation can result in bone nonunion, which is perceived as a worldwide epidemic, with a substantial socioeconomic and public health burden. Macrophages in microenvironment orchestrate the inflammation and launch the process of bone remodeling and repair, but aberrant activation of macrophages can drive drastic inflammatory responses during diabetic bone regeneration. In diabetes mellitus, the proliferation of resident macrophages in bone microenvironment is limited, while enhanced myeloid differentiation of hematopoietic stem cells (HSCs) leads to increased and constant monocyte recruitment and thus macrophages shift toward the classic pro-inflammatory phenotype, which leads to the deficiency of bone regeneration. In this review, we systematically summarized the anomalous origin of macrophages under diabetic conditions. Moreover, we evaluated the deficit of pro-regeneration macrophages in the diabetic inflammatory microenvironment. Finally, we further discussed the latest developments on strategies based on targeting macrophages to promote diabetic bone regeneration. Briefly, this review aimed to provide a basis for modulating the biological functions of macrophages to accelerate bone regeneration and rescue diabetic fracture healing in the future.
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Affiliation(s)
- Yufeng Shen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Yifan Zhang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Zheng Zhou
- Department of Stomatology, The First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, China
| | - Jinyu Wang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Dong Han
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Jiwei Sun
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Guangjin Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Qingming Tang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
| | - Wei Sun
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
- *Correspondence: Lili Chen, ; Wei Sun,
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillary Development and Regeneration, Wuhan, China
- *Correspondence: Lili Chen, ; Wei Sun,
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2
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Effects of HLA mismatch on cytomegalovirus reactivation in cord blood transplantation. Bone Marrow Transplant 2018; 54:1004-1012. [DOI: 10.1038/s41409-018-0369-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/28/2018] [Accepted: 10/02/2018] [Indexed: 12/26/2022]
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Kasprowicz R, Rand E, O'Toole PJ, Signoret N. A correlative and quantitative imaging approach enabling characterization of primary cell-cell communication: Case of human CD4 + T cell-macrophage immunological synapses. Sci Rep 2018; 8:8003. [PMID: 29789661 PMCID: PMC5964238 DOI: 10.1038/s41598-018-26172-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 05/08/2018] [Indexed: 11/10/2022] Open
Abstract
Cell-to-cell communication engages signaling and spatiotemporal reorganization events driven by highly context-dependent and dynamic intercellular interactions, which are difficult to capture within heterogeneous primary cell cultures. Here, we present a straightforward correlative imaging approach utilizing commonly available instrumentation to sample large numbers of cell-cell interaction events, allowing qualitative and quantitative characterization of rare functioning cell-conjugates based on calcium signals. We applied this approach to examine a previously uncharacterized immunological synapse, investigating autologous human blood CD4+ T cells and monocyte-derived macrophages (MDMs) forming functional conjugates in vitro. Populations of signaling conjugates were visualized, tracked and analyzed by combining live imaging, calcium recording and multivariate statistical analysis. Correlative immunofluorescence was added to quantify endogenous molecular recruitments at the cell-cell junction. By analyzing a large number of rare conjugates, we were able to define calcium signatures associated with different states of CD4+ T cell-MDM interactions. Quantitative image analysis of immunostained conjugates detected the propensity of endogenous T cell surface markers and intracellular organelles to polarize towards cell-cell junctions with high and sustained calcium signaling profiles, hence defining immunological synapses. Overall, we developed a broadly applicable approach enabling detailed single cell- and population-based investigations of rare cell-cell communication events with primary cells.
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Affiliation(s)
- Richard Kasprowicz
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, YO10 5DD, York, United Kingdom
| | - Emma Rand
- Department of Biology, University of York, YO10 5DD, York, United Kingdom
| | - Peter J O'Toole
- Bioscience Technology Facility, Department of Biology, University of York, YO10 5DD, York, United Kingdom
| | - Nathalie Signoret
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, YO10 5DD, York, United Kingdom.
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4
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Nandi A, Bishayi B. A novel CCR-2/TLR-2 triggered signaling in murine peritoneal macrophages intensifies bacterial ( Staphylococcus aureus ) killing by reactive oxygen species through TNF-R1. Immunol Lett 2017; 190:93-107. [DOI: 10.1016/j.imlet.2017.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/15/2017] [Indexed: 10/19/2022]
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Tosun S, Fried S, Niggemann B, Zänker KS, Dittmar T. Hybrid Cells Derived from Human Breast Cancer Cells and Human Breast Epithelial Cells Exhibit Differential TLR4 and TLR9 Signaling. Int J Mol Sci 2016; 17:ijms17050726. [PMID: 27187369 PMCID: PMC4881548 DOI: 10.3390/ijms17050726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 04/15/2016] [Accepted: 05/03/2016] [Indexed: 02/07/2023] Open
Abstract
TLRs are important receptors of cells of the innate immune system since they recognize various structurally conserved molecular patterns of different pathogens as well as endogenous ligands. In cancer, the role of TLRs is still controversial due to findings that both regression and progression of tumors could depend on TLR signaling. In the present study, M13SV1-EGFP-Neo human breast epithelial cells, MDA-MB-435-Hyg human breast cancer cells and two hybrids M13MDA435-1 and -3 were investigated for TLR4 and TLR9 expression and signaling. RT-PCR data revealed that LPS and CpG-ODN induced the expression of pro-inflammatory cytokines, like IFN-β, TNF-α, IL-1β and IL-6 in hybrid cells, but not parental cells. Interestingly, validation of RT-PCR data by Western blot showed detectable protein levels solely after LPS stimulation, suggesting that regulatory mechanisms are also controlled by TLR signaling. Analysis of pAKT and pERK1/2 levels upon LPS and CpG-ODN stimulation revealed a differential phosphorylation pattern in all cells. Finally, the migratory behavior of the cells was investigated showing that both LPS and CpG-ODN potently blocked the locomotory activity of the hybrid cells in a dose-dependent manner. In summary, hybrid cells exhibit differential TLR4 and TLR9 signaling.
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Affiliation(s)
- Songül Tosun
- Institute of Immunology & Experimental Oncology, Center for Biomedical Education and Research (ZBAF), University of Witten/Herdecke, Stockumer Str. 10, 58448 Witten, Germany.
| | - Sabrina Fried
- Institute of Immunology & Experimental Oncology, Center for Biomedical Education and Research (ZBAF), University of Witten/Herdecke, Stockumer Str. 10, 58448 Witten, Germany.
- Faculty of Medicine, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany.
| | - Bernd Niggemann
- Institute of Immunology & Experimental Oncology, Center for Biomedical Education and Research (ZBAF), University of Witten/Herdecke, Stockumer Str. 10, 58448 Witten, Germany.
| | - Kurt S Zänker
- Institute of Immunology & Experimental Oncology, Center for Biomedical Education and Research (ZBAF), University of Witten/Herdecke, Stockumer Str. 10, 58448 Witten, Germany.
| | - Thomas Dittmar
- Institute of Immunology & Experimental Oncology, Center for Biomedical Education and Research (ZBAF), University of Witten/Herdecke, Stockumer Str. 10, 58448 Witten, Germany.
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Miljković-Selimović B, Dinić M, Orlović J, Babić T. Staphylococcus aureus: Immunopathogenesis and Human Immunity. ACTA FACULTATIS MEDICAE NAISSENSIS 2015. [DOI: 10.1515/afmnai-2015-0025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
SummaryConsidering a large number of pathogen factors that enable high virulence of a microorganism such as Staphylococcus aureus (S. aureus), it is essential to see them through the continuous adaptation to the newly acquired mechanisms of the host immune response and efforts to overcome these, allowing the bacteria a perfect ecological niche for growth, reproduction, and location of new hosts. Past efforts to create a vaccine that would provide effective protection against infections caused by S. aureus remained without success. The reasons for this stem from the outstanding adaptability skills of this microorganism to almost all environmental conditions, the existence of a numerous virulence factors whose mechanisms of action are not well known, as well as insufficient knowledge of the immune response to S. aureus infections. This review article deals with this issue from another perspective and emphasizes actual knowledge on virulence factors and immune response to S. aureus.
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Hartmann P, Schober A, Weber C. Chemokines and microRNAs in atherosclerosis. Cell Mol Life Sci 2015; 72:3253-66. [PMID: 26001902 PMCID: PMC4531138 DOI: 10.1007/s00018-015-1925-z] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 04/09/2015] [Accepted: 05/05/2015] [Indexed: 01/10/2023]
Abstract
The crucial role of chemokines in the initiation and progression of atherosclerosis has been widely recognized. Through essential functions in leukocyte recruitment, chemokines govern the infiltration with mononuclear cells and macrophage accumulation in atherosclerotic lesions. Beyond recruitment, chemokines also provide homeostatic functions supporting cell survival and mediating the mobilization and homing of progenitor cells. As a new regulatory layer, several microRNAs (miRNAs) have been found to modulate the function of endothelial cells (ECs), smooth muscle cells and macrophages by controlling the expression levels of chemokines and thereby affecting different stages in the progression of atherosclerosis. For instance, the expression of CXCL1 can be down-regulated by miR-181b, which inhibits nuclear factor-κB activation in atherosclerotic endothelium, thus attenuating the adhesive properties of ECs and exerting early atheroprotective effects. Conversely, CXCL12 expression can be induced by miR-126 in ECs through an auto-amplifying feedback loop to facilitate endothelial regeneration, thus limiting atherosclerosis and mediating plaque stabilization. In contrast, miR-155 plays a pro-atherogenic role by promoting the expression of CCL2 in M1-type macrophages, thereby enhancing vascular inflammation. Herein, we will review novel aspects of chemokines and their regulation by miRNAs during atherogenesis. Understanding the complex cross-talk of miRNAs controlling chemokine expression may open novel therapeutic options to treat atherosclerosis.
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Affiliation(s)
- Petra Hartmann
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University (LMU) Munich, Munich, Germany
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Fox JM, Kasprowicz R, Hartley O, Signoret N. CCR5 susceptibility to ligand-mediated down-modulation differs between human T lymphocytes and myeloid cells. J Leukoc Biol 2015; 98:59-71. [PMID: 25957306 PMCID: PMC4560160 DOI: 10.1189/jlb.2a0414-193rr] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 04/03/2015] [Indexed: 01/04/2023] Open
Abstract
CCR5 is a chemokine receptor expressed on leukocytes and a coreceptor used by HIV-1 to enter CD4(+) T lymphocytes and macrophages. Stimulation of CCR5 by chemokines triggers internalization of chemokine-bound CCR5 molecules in a process called down-modulation, which contributes to the anti-HIV activity of chemokines. Recent studies have shown that CCR5 conformational heterogeneity influences chemokine-CCR5 interactions and HIV-1 entry in transfected cells or activated CD4(+) T lymphocytes. However, the effect of CCR5 conformations on other cell types and on the process of down-modulation remains unclear. We used mAbs, some already shown to detect distinct CCR5 conformations, to compare the behavior of CCR5 on in vitro generated human T cell blasts, monocytes and MDMs and CHO-CCR5 transfectants. All human cells express distinct antigenic forms of CCR5 not detected on CHO-CCR5 cells. The recognizable populations of CCR5 receptors exhibit different patterns of down-modulation on T lymphocytes compared with myeloid cells. On T cell blasts, CCR5 is recognized by all antibodies and undergoes rapid chemokine-mediated internalization, whereas on monocytes and MDMs, a pool of CCR5 molecules is recognized by a subset of antibodies and is not removed from the cell surface. We demonstrate that this cell surface-retained form of CCR5 responds to prolonged treatment with more-potent chemokine analogs and acts as an HIV-1 coreceptor. Our findings indicate that the regulation of CCR5 is highly specific to cell type and provide a potential explanation for the observation that native chemokines are less-effective HIV-entry inhibitors on macrophages compared with T lymphocytes.
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Affiliation(s)
- James M Fox
- *Department of Biology and Hull York Medical School, Center for Immunology and Infection, University of York, York, United Kingdom; and Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Richard Kasprowicz
- *Department of Biology and Hull York Medical School, Center for Immunology and Infection, University of York, York, United Kingdom; and Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Oliver Hartley
- *Department of Biology and Hull York Medical School, Center for Immunology and Infection, University of York, York, United Kingdom; and Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Nathalie Signoret
- *Department of Biology and Hull York Medical School, Center for Immunology and Infection, University of York, York, United Kingdom; and Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
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9
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de Munnik SM, Kooistra AJ, van Offenbeek J, Nijmeijer S, de Graaf C, Smit MJ, Leurs R, Vischer HF. The Viral G Protein-Coupled Receptor ORF74 Hijacks β-Arrestins for Endocytic Trafficking in Response to Human Chemokines. PLoS One 2015; 10:e0124486. [PMID: 25894435 PMCID: PMC4403821 DOI: 10.1371/journal.pone.0124486] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/03/2015] [Indexed: 12/21/2022] Open
Abstract
Kaposi’s sarcoma-associated herpesvirus-infected cells express the virally encoded G protein-coupled receptor ORF74. Although ORF74 is constitutively active, it binds human CXC chemokines that modulate this basal activity. ORF74-induced signaling has been demonstrated to underlie the development of the angioproliferative tumor Kaposi’s sarcoma. Whereas G protein-dependent signaling of ORF74 has been the subject of several studies, the interaction of this viral GPCR with β-arrestins has hitherto not been investigated. Bioluminescence resonance energy transfer experiments demonstrate that ORF74 recruits β-arrestins and subsequently internalizes in response to human CXCL1 and CXCL8, but not CXCL10. Internalized ORF74 traffics via early endosomes to recycling and late endosomes. Site-directed mutagenesis and homology modeling identified four serine and threonine residues at the distal end of the intracellular carboxyl-terminal of ORF74 that are required for β-arrestin recruitment and subsequent endocytic trafficking. Hijacking of the human endocytic trafficking machinery is a previously unrecognized action of ORF74.
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Affiliation(s)
- Sabrina M. de Munnik
- Department of Chemistry and Pharmaceutical Sciences, Division of Medicinal Chemistry, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), VU University Amsterdam, Amsterdam, The Netherlands
| | - Albert J. Kooistra
- Department of Chemistry and Pharmaceutical Sciences, Division of Medicinal Chemistry, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), VU University Amsterdam, Amsterdam, The Netherlands
| | - Jody van Offenbeek
- Department of Chemistry and Pharmaceutical Sciences, Division of Medicinal Chemistry, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), VU University Amsterdam, Amsterdam, The Netherlands
| | - Saskia Nijmeijer
- Department of Chemistry and Pharmaceutical Sciences, Division of Medicinal Chemistry, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), VU University Amsterdam, Amsterdam, The Netherlands
| | - Chris de Graaf
- Department of Chemistry and Pharmaceutical Sciences, Division of Medicinal Chemistry, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), VU University Amsterdam, Amsterdam, The Netherlands
| | - Martine J. Smit
- Department of Chemistry and Pharmaceutical Sciences, Division of Medicinal Chemistry, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), VU University Amsterdam, Amsterdam, The Netherlands
| | - Rob Leurs
- Department of Chemistry and Pharmaceutical Sciences, Division of Medicinal Chemistry, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), VU University Amsterdam, Amsterdam, The Netherlands
| | - Henry F. Vischer
- Department of Chemistry and Pharmaceutical Sciences, Division of Medicinal Chemistry, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), VU University Amsterdam, Amsterdam, The Netherlands
- * E-mail:
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Bishayi B, Bandyopadhyay D, Majhi A, Adhikary R. Effect of exogenous MCP-1 on TLR-2 neutralized murine macrophages and possible mechanisms of CCR-2/TLR-2 and MCP-1 signalling during Staphylococcus aureus infection. Immunobiology 2014; 220:350-62. [PMID: 25454805 DOI: 10.1016/j.imbio.2014.10.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 10/07/2014] [Accepted: 10/12/2014] [Indexed: 12/16/2022]
Abstract
It has been reported that Staphylococcus aureus survives within macrophages by hijacking host cell surface Toll-like receptor-2 (TLR-2). Moreover, S. aureus infection induced activation of TLR-2 has been reported to downregulate the expression of CC-chemokine receptor-2 (CCR-2), a receptor essential for binding of chemokines to propagate phagocytosis. Thus, we hypothesized that prior blocking of TLR-2 may help normal expression of CCR-2 on cell surface; thereby, administration of exogenous MCP-1 (a CCR-2 ligand) to bind to its free receptors might result in activation of downstream inflammatory signalling cascade. In order to address this, we compared the ability of S. aureus to modulate CCR-2 expression in TLR-2 free or neutralized macrophages in presence or absence of exogenous MCP-1 and associated downstream signalling. Exogenous MCP-1 by interacting CCR-2 leads to the release of nitric oxide and ROS that are important for bacterial clearance. In this experimental setup, the possible molecular pathway connecting an increase in proinflammatory cytokine levels with increased ROS/NO production, and therefore increased killing activity, possibly by involving either MyD88 dependent or RhoA GTPases dependent NF-κB activation or endogenous synthesis of MCP-1, independent of TLR-2-MyD88 pathway. Thus, induction of CCR-2/MCP-1 signalling by macrophages depending on the availability of MCP-1 during S. aureus infection may be important for regulation of septic shock by induction of reactive oxygen species and various cytokines.
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Affiliation(s)
- Biswadev Bishayi
- Department of Physiology, Immunology laboratory, University of Calcutta, University Colleges of Science and Technology, 92 APC Road, Calcutta 700009, West Bengal, India.
| | - Debasish Bandyopadhyay
- Department of Physiology, Oxidative Stress and Free Radical Biology Laboratory, University of Calcutta, University Colleges of Science and Technology, 92 APC Road, Calcutta 700009, West Bengal, India
| | - Arnab Majhi
- Department of Physiology, Immunology laboratory, University of Calcutta, University Colleges of Science and Technology, 92 APC Road, Calcutta 700009, West Bengal, India
| | - Rana Adhikary
- Department of Physiology, Immunology laboratory, University of Calcutta, University Colleges of Science and Technology, 92 APC Road, Calcutta 700009, West Bengal, India
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Zhang Y, Luo F, Li A, Qian J, Yao Z, Feng X, Chu Y. Systemic injection of TLR1/2 agonist improves adoptive antigen-specific T cell therapy in glioma-bearing mice. Clin Immunol 2014; 154:26-36. [PMID: 24928324 DOI: 10.1016/j.clim.2014.06.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 04/24/2014] [Accepted: 06/03/2014] [Indexed: 01/07/2023]
Abstract
Adoptive immunotherapy is an attractive strategy for glioma treatment. However, some obstacles still need be overcome. In this study, GL261-bearing mice treated with adoptively transferred antigen-specific T cells and systemic injection of bacterial lipoprotein (BLP), a TLR1/2 agonist, got a long-term survival and even immune protection. By analyzing adoptive T cells, it was found that BLP maintained T cell survival, proliferation and anti-tumor efficacy in the brains of tumor-bearing hosts. Moreover, tumor microenvironment was modified by up-regulating IFN-γ-secreting CD8+ T cells and down-regulating MDSC, which might be related with high CXCL10 and low CCL2 expression. In addition, TLR2 deficiency abrogated therapeutic effect with increased MDSC accumulation and decreased IFN-γ-secreting CD8+ T cells in the brains. Thus, the systemic injection of BLP could improve the adoptive T cell therapy by maintaining T cell persistence, modifying the tumor microenvironment and even inducing systemic anti-tumor immunity, which might offer a clinically promising immunotherapeutic strategy for glioma.
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Affiliation(s)
- Yufei Zhang
- Department of Immunology, School of Basic Medical Sciences and Biotherapy Research Center, Fudan University, Shanghai, China
| | - Feifei Luo
- Department of Immunology, School of Basic Medical Sciences and Biotherapy Research Center, Fudan University, Shanghai, China
| | - Anning Li
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jiawen Qian
- Department of Immunology, School of Basic Medical Sciences and Biotherapy Research Center, Fudan University, Shanghai, China
| | - Zhenwei Yao
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaoyuan Feng
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yiwei Chu
- Department of Immunology, School of Basic Medical Sciences and Biotherapy Research Center, Fudan University, Shanghai, China.
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12
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Chen K, Liu M, Liu Y, Wang C, Yoshimura T, Gong W, Le Y, Tessarollo L, Wang JM. Signal relay by CC chemokine receptor 2 (CCR2) and formylpeptide receptor 2 (Fpr2) in the recruitment of monocyte-derived dendritic cells in allergic airway inflammation. J Biol Chem 2013; 288:16262-16273. [PMID: 23603910 PMCID: PMC3675565 DOI: 10.1074/jbc.m113.450635] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 04/08/2013] [Indexed: 12/24/2022] Open
Abstract
Chemoattractant receptors regulate leukocyte accumulation at sites of inflammation. In allergic airway inflammation, although a chemokine receptor CCR2 was implicated in mediating monocyte-derived dendritic cell (DC) recruitment into the lung, we previously also discovered reduced accumulation of DCs in the inflamed lung in mice deficient in formylpeptide receptor Fpr2 (Fpr2(-/-)). We therefore investigated the role of Fpr2 in the trafficking of monocyte-derived DCs in allergic airway inflammation in cooperation with CCR2. We report that in allergic airway inflammation, CCR2 mediated the recruitment of monocyte-derived DCs to the perivascular region, and Fpr2 was required for further migration of the cells into the bronchiolar area. We additionally found that the bronchoalveolar lavage liquid from mice with airway inflammation contained both the CCR2 ligand CCL2 and an Fpr2 agonist CRAMP. Furthermore, similar to Fpr2(-/-) mice, in the inflamed airway of CRAMP(-/-) mice, DC trafficking into the peribronchiolar areas was diminished. Our study demonstrates that the interaction of CCR2 and Fpr2 with their endogenous ligands sequentially mediates the trafficking of DCs within the inflamed lung.
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Affiliation(s)
- Keqiang Chen
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research
| | - Mingyong Liu
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research
| | - Ying Liu
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research
| | - Chunyan Wang
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research
| | - Teizo Yoshimura
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research
| | | | - Yingying Le
- Institute for Nutritional Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Lino Tessarollo
- Mouse Cancer Genetics Program, Center for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland 21702
| | - Ji Ming Wang
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research.
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13
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Gallo CB, Borra RC, Rodini CO, Nunes FD, Sugaya NN. CC chemokine ligand 3 and receptors 1 and 5 gene expression in recurrent aphthous stomatitis. Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 114:93-8. [PMID: 22727097 DOI: 10.1016/j.oooo.2012.02.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 01/27/2012] [Accepted: 02/29/2012] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the local and systemic expression of CC-chemokine ligand 3 (CCL3) and its receptors (CCR1 and CCR5) in tissue samples and peripheral blood mononuclear cells of recurrent aphthous stomatitis (RAS) patients. STUDY DESIGN This case-control study enrolled 29 patients presenting severe RAS manifestations and 20 non-RAS patients proportionally matched by sex and age. Total RNA was extracted from biopsy specimens and peripheral blood mononuclear cells for quatitative reverse-transcription polymerase chain reaction. The data obtained by relative quantification were evaluated by the 2(-ΔΔCt) method, normalized by the expression of an endogenous control, and analyzed by Student t test. RESULTS The results demonstrated overexpression in RAS tissue samples of all of the chemokines evaluated compared with healthy oral mucosa, whereas the blood samples showed only CCR1 overexpression in RAS patients. CONCLUSIONS These findings suggest that the increased expression of CCL3, CCR1, and CCR5 may influence the immune response in RAS by T(H)1 cytokine polarization.
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Affiliation(s)
- Camila B Gallo
- Stomatology Department, School of Dentistry, University of São Paulo, São Paulo, Brazil.
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The Chinese Herbal Medicine Formula Sheng-Fei-Yu-Chuan-Tang Suppresses Th2 Responses and Increases IFN γ in Dermatophagoides pteronyssinus Induced Chronic Asthmatic Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:984121. [PMID: 23573164 PMCID: PMC3612458 DOI: 10.1155/2013/984121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 02/18/2013] [Indexed: 12/17/2022]
Abstract
Sheng-Fei-Yu-Chuan-Tang (SFYCT), a traditional Chinese medicine formula consisting of 13 medicinal plants, has been used in the treatment of asthma. This study demonstrated the immunoregulatory effect of SFYCT on chronic allergic asthma using the Dermatophagoides-pteronyssinus- (Der p-) challenged chronic asthmatic murine model. SFYCT decreased the airway hyperresponseness (AHR), pulmonary inflammatory cell infiltration, and airway remodeling in Der p mice. SFYCT treatment decreased Der p-induced total IgE and Der-p-specific IgG1 but not IgG2a/2b Ab titer in serum of Der p mice. SFYCT also decreased Th2 cytokines, IL-4, IL-5, and IL-13, but increased IFN-γ and IL-12 in the BALF of Der p mice. TGF-β1 and collagen production in the lung of mice were decreased by SFYCT. The mRNA expression of chemokine including Eotaxin, RANTES, and MCP-1 in the lung of Der p mice was decreased by SFYCT. In conclusion, the suppressed Der-p-induced airway inflammation, remodeling, and hyperresponseness in chronic asthma murine model are related to SFYCT inhibits Th2 responses, decreases chemokine expression and promotes IFN-γ and IL-12 production. SFYCT could show Der-p-induced Th2 responses to Th1 responses by increasing IFN-γ which is merit for clinical application on asthma patients.
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Exploratory, randomized, double-blind, placebo-controlled study on the effects of Bifidobacterium infantis natren life start strain super strain in active celiac disease. J Clin Gastroenterol 2013; 47:139-47. [PMID: 23314670 DOI: 10.1097/mcg.0b013e31827759ac] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND/AIMS The aim of this exploratory trial was to establish if the probiotic Bifidobacterium natren life start (NLS) strain strain may affect the clinical course and pathophysiological features of patients with untreated celiac disease (CD). Positive findings would be helpful in directing future studies. METHODS Twenty-two adult patients having 2 positives CD-specific tests were enrolled. Patients were randomized to receive 2 capsules before meals for 3 weeks of either Bifidobacterium infantis natren life start strain super strain (Lifestart 2) (2×10(9) colony-forming units per capsule) (n = 12) or placebo (n = 10), whereas they also consumed at least 12 g of gluten/day. A biopsy at the end of the trial confirmed CD in all cases. The primary outcome was intestinal permeability changes. Secondary endpoints were changes in symptoms and the Gastrointestinal Symptom Rating Scale, and in immunologic indicators of inflammation. RESULTS The abnormal baseline intestinal permeability was not significantly affected by either treatment. In contrast to patients on placebo, those randomized to B. infantis experienced a significant improvement in Gastrointestinal Symptom Rating Scale (P = 0.0035 for indigestion; P = 0.0483 for constipation; P = 0.0586 for reflux). Final/baseline IgA tTG and IgA DGP antibody concentration ratios were lower in the B. infantis arm (P = 0.055 for IgA tTG and P = 0.181 for IgA DGP). Final serum macrophage inflammatory protein-1β increased significantly (P < 0.04) only in patients receiving B. infantis. The administration of B. infantis was safe. CONCLUSIONS The study suggests that B. infantis may alleviate symptoms in untreated CD. The probiotic produced some immunologic changes but did not modify abnormal intestinal permeability. Further studies are necessary to confirm and/or expand these observations.
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Abstract
β-Arrestins regulate G protein-coupled receptors through receptor desensitization while also acting as signaling scaffolds to facilitate numerous effector pathways. Recent studies have provided evidence that β-arrestins play a key role in inflammatory responses. Here, we summarize these advances on the roles of β-arrestins in immune regulation and inflammatory responses under physiological and pathological conditions, with an emphasis on translational implications of β-arrestins on human diseases.
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Wang SD, Lin LJ, Chen CL, Lee SC, Lin CC, Wang JY, Kao ST. Xiao-Qing-Long-Tang attenuates allergic airway inflammation and remodeling in repetitive Dermatogoides pteronyssinus challenged chronic asthmatic mice model. JOURNAL OF ETHNOPHARMACOLOGY 2012; 142:531-538. [PMID: 22658987 DOI: 10.1016/j.jep.2012.05.033] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 05/07/2012] [Accepted: 05/20/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Xiao-Qing-Long-Tang (XQLT) has been used for centuries in Asia to effectively treat patients with bronchial asthma. AIM OF THE STUDY We previously found that single and multiple doses of XQLT administered to sensitized mice before allergen challenge resulted in suppressed airway hyper-responsiveness and airway inflammation. In this study we aimed to investigate whether XQLT has the potential to attenuate the severity of asthma symptoms, and immunomodulatory mechanism of XQLT in a repetitive Dermatogoides pteronyssinus (D. pteronyssinus)-challenged chronic asthmatic mice model. MATERIALS AND METHODS BALB/c mice were intratracheally (i.t.) inoculated with five doses of D. pteronyssinus (50 μl, 1mg/ml) and orally administered of XQLT (1 g/kg) at 1-week intervals. At three days after the last challenge, mice were sacrificed to evaluate airway remodeling, inflammation, lung histological features, and the expression profiles of cytokines and various genes. RESULTS XQLT significantly reduced bronchial inflammatory cell infiltration and airway remodeling. It inhibited D. pteronyssinus-induced total IgE and D. pteronyssinus-specific IgG1 in serum, and changed the "T(H)2-bios" in BALF by inhibiting the activation of NF-κB. Collagen assay and Histopathology indicated that XQLT reduced airway remodeling in the lung. Simultaneously, the RT-PCR analysis showed that XQLT downregulated IL-10, IL-13, RANTES, Eotaxin, and MCP-1 mRNA expression in the lung. Moreover, EMSA and immunohistochemistry staining demonstrated that XQLT inhibited NF-κB expression in the nucleus of bronchial epithelial cells. CONCLUSIONS These results suggest that XQLT exhibits anti-airway inflammatory, anti-airway remodeling, and specific immunoregulatory effects in a chronic asthmatic mice model.
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Affiliation(s)
- Shulhn-Der Wang
- School of Post-Baccalaureate Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
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TLR signaling paralyzes monocyte chemotaxis through synergized effects of p38 MAPK and global Rap-1 activation. PLoS One 2012; 7:e30404. [PMID: 22347375 PMCID: PMC3276499 DOI: 10.1371/journal.pone.0030404] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 12/20/2011] [Indexed: 01/15/2023] Open
Abstract
Toll-like receptors (TLRs) that recognize pathogen associated molecular patterns and chemoattractant receptors (CKRs) that orchestrate leukocyte migration to infected tissue are two arms of host innate immunity. Although TLR signaling induces synthesis and secretion of proinflammatory cytokines and chemokines, which recruit leukocytes, many studies have reported the paradoxical observation that TLR stimulation inhibits leukocyte chemotaxis in vitro and impairs their recruitment to tissues during sepsis. There is consensus that physical loss of chemokine receptor (CKR) at the RNA or protein level or receptor usage switching are the mechanisms underlying this effect. We show here that a brief (<15 min) stimulation with LPS (lipopolysaccharide) at ~0.2 ng/ml inhibited chemotactic response from CCR2, CXCR4 and FPR receptors in monocytes without downmodulation of receptors. A 3 min LPS pre-treatment abolished the polarized accumulation of F-actin, integrins and PIP(3) (phosphatidylinositol-3,4,5-trisphosphate) in response to chemokines in monocytes, but not in polymorphonuclear neutrophils (PMNs). If chemoattractants were added before or simultaneously with LPS, chemotactic polarization was preserved. LPS did not alter the initial G-protein signaling, or endocytosis kinetics of agonist-occupied chemoattractant receptors (CKRs). The chemotaxis arrest did not result from downmodulation of receptors or from inordinate increase in adhesion. LPS induced rapid p38 MAPK activation, global redistribution of activated Rap1 (Ras-proximate-1 or Ras-related protein 1) GTPase and Rap1GEF (guanylate exchange factor) Epac1 (exchange proteins activated by cyclic AMP) and disruption of intracellular gradient. Co-inhibition of p38 MAPK and Rap1 GTPase reversed the LPS induced breakdown of chemotaxis suggesting that LPS effect requires the combined function of p38 MAPK and Rap1 GTPase.
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Bennett LD, Fox JM, Signoret N. Mechanisms regulating chemokine receptor activity. Immunology 2011; 134:246-56. [PMID: 21977995 PMCID: PMC3209565 DOI: 10.1111/j.1365-2567.2011.03485.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 07/04/2011] [Accepted: 07/12/2011] [Indexed: 12/21/2022] Open
Abstract
Co-ordinated movement and controlled positioning of leucocytes is key to the development, maintenance and proper functioning of the immune system. Chemokines and their receptors play an essential role in these events by mediating directed cell migration, often referred to as chemotaxis. The chemotactic property of these molecules is also thought to contribute to an array of pathologies where inappropriate recruitment of specific chemokine receptor-expressing leucocytes is observed, including cancer and inflammatory diseases. As a result, chemokine receptors have become major targets for therapeutic intervention, and during the past 15 years much research has been devoted to understanding the regulation of their biological activity. From these studies, processes which govern the availability of functional chemokine receptors at the cell surface have emerged as playing a central role. In this review, we summarize and discuss current knowledge on the molecular mechanisms contributing to the regulation of chemokine receptor surface expression, from gene transcription and protein degradation to post-translational modifications, multimerization, intracellular transport and cross-talk.
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Affiliation(s)
- Laura D Bennett
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, UK
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