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Kaffashi K, Dréau D, Nesmelova IV. Heterodimers Are an Integral Component of Chemokine Signaling Repertoire. Int J Mol Sci 2023; 24:11639. [PMID: 37511398 PMCID: PMC10380872 DOI: 10.3390/ijms241411639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Chemokines are a family of signaling proteins that play a crucial role in cell-cell communication, cell migration, and cell trafficking, particularly leukocytes, under both normal and pathological conditions. The oligomerization state of chemokines influences their biological activity. The heterooligomerization occurs when multiple chemokines spatially and temporally co-localize, and it can significantly affect cellular responses. Recently, obligate heterodimers have emerged as tools to investigate the activities and molecular mechanisms of chemokine heterodimers, providing valuable insights into their functional roles. This review focuses on the latest progress in understanding the roles of chemokine heterodimers and their contribution to the functioning of the chemokine network.
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Affiliation(s)
- Kimia Kaffashi
- Department of Biological Sciences, University of North Carolina, Charlotte, NC 28223, USA
- Department of Physics and Optical Sciences, University of North Carolina, Charlotte, NC 28223, USA
| | - Didier Dréau
- Department of Biological Sciences, University of North Carolina, Charlotte, NC 28223, USA
| | - Irina V Nesmelova
- Department of Physics and Optical Sciences, University of North Carolina, Charlotte, NC 28223, USA
- School of Data Science, University of North Carolina, Charlotte, NC 28223, USA
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Sex differences in monocyte CCR2 expression and macrophage polarization following acute exercise. Life Sci 2022; 299:120557. [PMID: 35447130 DOI: 10.1016/j.lfs.2022.120557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/02/2022] [Accepted: 04/11/2022] [Indexed: 11/21/2022]
Abstract
Monocyte chemokine receptor 2 (CCR2) and phosphorylated extra-cellular regulated kinase 1 & 2 (ERK1/2) impact macrophage differentiation and progression of atherosclerosis. Whereas aerobic exercise favorably modulates the immune system and reduces atherosclerotic risk, it is unknown whether sex differences exist in the monocyte/macrophage response to acute aerobic exercise. AIMS To determine the impact of an acute bout of moderate intensity aerobic exercise on monocyte and macrophage CCR2 expression, ERK1/2 phosphorylation, and macrophage polarization in pre-menopausal women and men. MATERIALS AND METHODS Blood samples were collected in 24 people (Women/Men; n = 12) prior to (PRE), immediately after a bout of moderate intensity cycle ergometry (POST), and 2 h (2H) following exercise. Monocyte and macrophage CCR2 and phosphorylated ERK1/2 as well as macrophage CD86 and CD206 were analyzed by flow cytometry. KEY FINDINGS PRE classical monocyte CCR2 expression was greater in women compared to men (Women: 20546.2 ± 2306.4 vs. Men: 14437.6 ± 1201.9 AUF; p = 0.028) and was reduced in women at 2H (PRE: 20546.2 ± 2306.4 vs. 2H: 15856.9 ± 1314.4 AUF; p = 0.027). POST classical monocyte CCR2 expression was inversely associated (r = -0.697, p = 0.012) with POST classical monocyte ERK1/2 phosphorylation in women only. The percentage of CCR2+ macrophages was lower in women at POST (Women: 62.0 ± 8.9 vs. Men: 83.6 ± 3.1; p = 0.031) and at 2H (Women: 60.3 ± 8.4 vs. Men: 83.5 ± 3.0%; p = 0.016). SIGNIFICANCE These data suggest that a single bout of moderate intensity aerobic exercise differentially impacts monocyte CCR2 expression and macrophage polarization in women compared to men.
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Utility of urinary cytokine levels as predictors of the immunogenicity and reactogenicity of AS01-adjuvanted hepatitis B vaccine in healthy adults. Vaccine 2022; 40:2714-2722. [PMID: 35367070 DOI: 10.1016/j.vaccine.2022.03.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 02/10/2022] [Accepted: 03/22/2022] [Indexed: 01/10/2023]
Abstract
Plasma cytokines are useful indicators of the inflammatory response to vaccination, and can serve as potential biomarkers of the systemic reactogenicity and immunogenicity of vaccines. Measurement of cytokines in urine may represent a non-invasive alternative to the blood-based markers. To evaluate whether urinary cytokine levels can help predict vaccine responses to an AS01B-adjuvanted vaccine, we measured concentrations of 24 cytokines in the urine from 30 hepatitis B virus (HBV)-naïve adults following administration of AS01B-adjuvanted HBV surface antigen vaccine (NCT01777295). Levels post-dose 2 were compared with the levels measured following a single placebo (saline) injection, which was administered 1 month before the first vaccination in the same participants. Urine was collected at eight timepoints before or up to 1 week following each treatment. Urinary concentrations were normalized to creatinine levels, and paired with previously reported, participant-matched plasma levels, local and systemic reactogenicity scores, and antibody response magnitudes. Of the urine cytokine panel, only few analytes were detectable: IL-8, IL-18 and IL-6 receptor, each showing no clear changes after vaccination as compared to placebo administration, and MCP-1 (CCL2) and IP-10 (CXCL10), which displayed in most participants transient surges post-vaccination. Urine levels did not correlate with the matched plasma levels. Interestingly, urinary IP-10 levels at 1 day post-second vaccination were significantly correlated (P = 0.023) with the concurrent intensity scores of systemic reactogenicity, though not with the local reactogenicity scores or peak antibody responses. No significant correlations were detected for MCP-1. Altogether, most urinary cytokines have limited utility as a proxy for plasma cytokines to help predict the inflammatory response, the immunogenicity or the reactogenicity of AS01B-adjuvanted vaccine, with the possible exception of IP-10. The utility of urinary IP-10 as a potential complementary biomarker of systemic vaccine reactogenicity needs substantiation in larger studies.
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Schaefer REM, Callahan RC, Atif SM, Orlicky DJ, Cartwright IM, Fontenot AP, Colgan SP, Onyiah JC. Disruption of monocyte-macrophage differentiation and trafficking by a heme analog during active inflammation. Mucosal Immunol 2022; 15:244-256. [PMID: 34916594 PMCID: PMC8881314 DOI: 10.1038/s41385-021-00474-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 09/23/2021] [Accepted: 11/23/2021] [Indexed: 02/04/2023]
Abstract
Heme metabolism is a key regulator of inflammatory responses. Cobalt protoporphyrin IX (CoPP) is a heme analog and mimic that potently activates the NRF2/heme oxygenase-1 (HO-1) pathway, especially in monocytes and macrophages. We investigated the influence of CoPP on inflammatory responses using a murine model of colitis. Surprisingly, conditional deletion of myeloid HO-1 did not impact the colonic inflammatory response or the protective influence of CoPP in the setting of dextran sodium sulfate-induced colitis. Rather, we reveal that CoPP elicits a contradictory shift in blood myeloid populations relative to the colon during active intestinal inflammation. Major population changes include markedly diminished trafficking of CCR2+Ly6Chi monocytes to the inflamed colon, despite significant mobilization of this population into circulation. This resulted in significantly diminished colonic expansion of monocyte-derived macrophages and inflammatory cytokine expression. These findings were linked with significant induction of systemic CCL2 leading to a disrupted CCL2 chemoattractant gradient toward the colon and concentration-dependent suppression of circulating monocyte CCR2 expression. Administration of CoPP also induced macrophage differentiation toward a MarcohiHmox1hi anti-inflammatory erythrophagocytic phenotype, contributing to an overall decreased inflammatory profile. Such findings redefine protective influences of heme metabolism during inflammation, and highlight previously unreported immunosuppressive mechanisms of endogenous CCL2 induction.
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Affiliation(s)
- Rachel E. M. Schaefer
- Division of Gastroenterology and Hepatology, University of Colorado School of Medicine, Aurora, CO,Department of Medicine, University of Colorado School of Medicine, Aurora, CO,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO
| | - Rosemary C. Callahan
- Division of Gastroenterology and Hepatology, University of Colorado School of Medicine, Aurora, CO,Department of Medicine, University of Colorado School of Medicine, Aurora, CO,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO
| | - Shaikh M. Atif
- Division of Allergy, Asthma and Clinical Immunology, University of Colorado School of Medicine, Aurora, CO
| | - David J. Orlicky
- Department of Pathology, University of Colorado School of Medicine, Aurora, CO
| | - Ian M. Cartwright
- Division of Gastroenterology and Hepatology, University of Colorado School of Medicine, Aurora, CO,Department of Medicine, University of Colorado School of Medicine, Aurora, CO,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO
| | - Andrew P. Fontenot
- Division of Allergy, Asthma and Clinical Immunology, University of Colorado School of Medicine, Aurora, CO
| | - Sean P. Colgan
- Division of Gastroenterology and Hepatology, University of Colorado School of Medicine, Aurora, CO,Department of Medicine, University of Colorado School of Medicine, Aurora, CO,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO
| | - Joseph C. Onyiah
- Division of Gastroenterology and Hepatology, University of Colorado School of Medicine, Aurora, CO,Department of Medicine, University of Colorado School of Medicine, Aurora, CO,Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, Corresponding author: Joseph C. Onyiah, M.D., University of Colorado School of Medicine, Rocky Mountain Regional VA Medical Center, 12700 East 19th Ave. MS B-146, Aurora, CO 80045,
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Disease-specific glycosaminoglycan patterns in the extracellular matrix of human lung and brain. Carbohydr Res 2021; 511:108480. [PMID: 34837849 DOI: 10.1016/j.carres.2021.108480] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/11/2021] [Accepted: 11/11/2021] [Indexed: 11/24/2022]
Abstract
A wide variety of diseases throughout the mammalian organism is characterized by abnormal deposition of various components of the extracellular matrix (ECM), including the heterogeneous family of glycosaminoglycans (GAGs), which contribute considerably to the ECM architecture as part of the so-called proteoglycans. The GAG's unique sulfation pattern, derived from highly dynamic and specific modification processes, has a massive impact on critical mediators such as cytokines and growth factors. Due to the strong connection between the specific sulfation pattern and GAG function, slight alterations of this pattern are often associated with enormous changes at the cell as well as at the organ level. This review aims to investigate the connection between modifications of GAG sulfation patterns and the wide range of pathological conditions, mainly focusing on a range of chronic diseases of the central nervous system (CNS) as well as the respiratory tract.
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Hofbauer TM, Ondracek AS, Mangold A, Scherz T, Nechvile J, Seidl V, Brostjan C, Lang IM. Neutrophil Extracellular Traps Induce MCP-1 at the Culprit Site in ST-Segment Elevation Myocardial Infarction. Front Cell Dev Biol 2020; 8:564169. [PMID: 33240874 PMCID: PMC7680894 DOI: 10.3389/fcell.2020.564169] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 10/08/2020] [Indexed: 12/15/2022] Open
Abstract
Background Leukocyte-mediated inflammation is crucial in ST-segment elevation myocardial infarction (STEMI). We recently observed that neutrophil extracellular traps (NETs) are increased at the culprit site, promoting activation and differentiation of fibrocytes, cells with mesenchymal and leukocytic properties. Fibrocyte migration is mediated by monocyte chemoattractant protein (MCP)-1 and C-C chemokine receptor type 2 (CCR2). We investigated the interplay between NETs, fibrocyte function, and MCP-1 in STEMI. Methods Culprit site and peripheral blood samples of STEMI patients were drawn during primary percutaneous coronary intervention. MCP-1 and the NET marker citrullinated histone H3 (citH3) were measured by ELISA while double-stranded DNA was stained with a fluorescent dye. The influence of MCP-1 on NET formation in vitro was assessed using isolated healthy donor neutrophils. Human coronary artery endothelial cells (hCAECs) were stimulated with isolated NETs, and MCP-1 gene expression was measured by ELISA and qPCR. CCR2 expression of culprit site and peripheral blood fibrocytes was characterized by flow cytometry. Healthy donor fibrocyte receptor expression and chemotaxis were investigated in response to stimulation with MCP-1 and NETs in vitro. Results NETs and concentrations of MCP-1 were increased at the culprit site of 50 consecutive STEMI patients. NET stimulation of hCAECs induced transcription of ICAM-1, IL-6, and MCP-1, and secretion of MCP-1. MCP-1 promoted NET formation of healthy donor neutrophils in vitro. An increasing MCP-1 gradient correlated with fibrocyte accumulation at the culprit site. Locally increased MCP-1 levels were negatively correlated with CCR2 expression on fibrocytes. MCP-1 and NETs induced CCR2 downregulation on fibrocytes in vitro. NETs did not function as a chemotactic stimulus for fibrocytes or monocytes and could block migration in response to MCP-1 for both cell populations. Conclusion NETs function as signaling scaffolds at the culprit site of STEMI. NETs assist MCP-1 and ICAM-1 release from culprit site coronary artery endothelial cells. MCP-1 facilitates further NETosis. Monocytes enter the culprit site along an MCP-1 gradient, to transdifferentiate into fibrocytes in the presence of NETs.
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Affiliation(s)
- Thomas M Hofbauer
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Anna S Ondracek
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Andreas Mangold
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Thomas Scherz
- Department of Dermatology and Venereology, Landesklinikum Wiener Neustadt, Wiener Neustadt, Austria
| | - Johanna Nechvile
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Veronika Seidl
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Christine Brostjan
- Department of Surgery, Division of Vascular Surgery and Surgical Research Laboratories, Medical University of Vienna, Vienna, Austria
| | - Irene M Lang
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
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Crijns H, Vanheule V, Proost P. Targeting Chemokine-Glycosaminoglycan Interactions to Inhibit Inflammation. Front Immunol 2020; 11:483. [PMID: 32296423 PMCID: PMC7138053 DOI: 10.3389/fimmu.2020.00483] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/02/2020] [Indexed: 12/12/2022] Open
Abstract
Leukocyte migration into tissues depends on the activity of chemokines that form concentration gradients to guide leukocytes to a specific site. Interaction of chemokines with their specific G protein-coupled receptors (GPCRs) on leukocytes induces leukocyte adhesion to the endothelial cells, followed by extravasation of the leukocytes and subsequent directed migration along the chemotactic gradient. Interaction of chemokines with glycosaminoglycans (GAGs) is crucial for extravasation in vivo. Chemokines need to interact with GAGs on endothelial cells and in the extracellular matrix in tissues in order to be presented on the endothelium of blood vessels and to create a concentration gradient. Local chemokine retention establishes a chemokine gradient and prevents diffusion and degradation. During the last two decades, research aiming at reducing chemokine activity mainly focused on the identification of inhibitors of the interaction between chemokines and their cognate GPCRs. This approach only resulted in limited success. However, an alternative strategy, targeting chemokine-GAG interactions, may be a promising approach to inhibit chemokine activity and inflammation. On this line, proteins derived from viruses and parasites that bind chemokines or GAGs may have the potential to interfere with chemokine-GAG interactions. Alternatively, chemokine mimetics, including truncated chemokines and mutant chemokines, can compete with chemokines for binding to GAGs. Such truncated or mutated chemokines are characterized by a strong binding affinity for GAGs and abrogated binding to their chemokine receptors. Finally, Spiegelmers that mask the GAG-binding site on chemokines, thereby preventing chemokine-GAG interactions, were developed. In this review, the importance of GAGs for chemokine activity in vivo and strategies that could be employed to target chemokine-GAG interactions will be discussed in the context of inflammation.
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Affiliation(s)
- Helena Crijns
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Vincent Vanheule
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Paul Proost
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
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Gschwandtner M, Derler R, Midwood KS. More Than Just Attractive: How CCL2 Influences Myeloid Cell Behavior Beyond Chemotaxis. Front Immunol 2019; 10:2759. [PMID: 31921102 PMCID: PMC6923224 DOI: 10.3389/fimmu.2019.02759] [Citation(s) in RCA: 325] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 11/11/2019] [Indexed: 12/15/2022] Open
Abstract
Monocyte chemoattractant protein-1 (MCP-1/CCL2) is renowned for its ability to drive the chemotaxis of myeloid and lymphoid cells. It orchestrates the migration of these cell types both during physiological immune defense and in pathological circumstances, such as autoimmune diseases including rheumatoid arthritis and multiple sclerosis, inflammatory diseases including atherosclerosis, as well as infectious diseases, obesity, diabetes, and various types of cancer. However, new data suggest that the scope of CCL2's functions may extend beyond its original characterization as a chemoattractant. Emerging evidence shows that it can impact leukocyte behavior, influencing adhesion, polarization, effector molecule secretion, autophagy, killing, and survival. The direction of these CCL2-induced responses is context dependent and, in some cases, synergistic with other inflammatory stimuli. The involvement of CCL2 signaling in multiple diseases renders it an interesting therapeutic target, although current targeting strategies have not met early expectations in the clinic. A better understanding of how CCL2 affects immune cells will be pivotal to the improvement of existing therapeutic approaches and the development of new drugs. Here, we provide an overview of the pleiotropic effects of CCL2 signaling on cells of the myeloid lineage, beyond chemotaxis, and highlight how these actions might help to shape immune cell behavior and tumor immunity.
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Affiliation(s)
- Martha Gschwandtner
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Rupert Derler
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Kim S. Midwood
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
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Vanheule V, Crijns H, Poosti F, Ruytinx P, Berghmans N, Gerlza T, Ronsse I, Pörtner N, Matthys P, Kungl AJ, Opdenakker G, Struyf S, Proost P. Anti-inflammatory effects of the GAG-binding CXCL9(74-103) peptide in dinitrofluorobenzene-induced contact hypersensitivity in mice. Clin Exp Allergy 2018; 48:1333-1344. [DOI: 10.1111/cea.13227] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 06/14/2018] [Accepted: 07/02/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Vincent Vanheule
- Laboratory of Molecular Immunology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Helena Crijns
- Laboratory of Molecular Immunology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Fariba Poosti
- Laboratory of Molecular Immunology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Pieter Ruytinx
- Laboratory of Molecular Immunology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Nele Berghmans
- Laboratory of Molecular Immunology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Tanja Gerlza
- Department of Pharmaceutical Chemistry; Institute of Pharmaceutical Sciences; University of Graz; Graz Austria
- Antagonis Biotherapeutics GmbH; Graz Austria
| | - Isabelle Ronsse
- Laboratory of Molecular Immunology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Noëmie Pörtner
- Laboratory of Molecular Immunology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Patrick Matthys
- Laboratory of Immunobiology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Andreas J. Kungl
- Department of Pharmaceutical Chemistry; Institute of Pharmaceutical Sciences; University of Graz; Graz Austria
- Antagonis Biotherapeutics GmbH; Graz Austria
| | - Ghislain Opdenakker
- Laboratory of Immunobiology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Sofie Struyf
- Laboratory of Molecular Immunology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Paul Proost
- Laboratory of Molecular Immunology; Department of Microbiology and Immunology; Rega Institute for Medical Research; KU Leuven; Leuven Belgium
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Bhatt P, Kumaresan V, Palanisamy R, Ravichandran G, Mala K, Amin SMN, Arshad A, Yusoff FM, Arockiaraj J. A mini review on immune role of chemokines and its receptors in snakehead murrel Channa striatus. FISH & SHELLFISH IMMUNOLOGY 2018; 72:670-678. [PMID: 29162541 DOI: 10.1016/j.fsi.2017.11.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/15/2017] [Accepted: 11/17/2017] [Indexed: 06/07/2023]
Abstract
Chemokines are ubiquitous cytokine molecules involved in migration of cells during inflammation and normal physiological processes. Though the study on chemokines in mammalian species like humans have been extensively studied, characterization of chemokines in teleost fishes is still in the early stage. The present review provides an overview of chemokines and its receptors in a teleost fish, Channa striatus. C. striatus is an air breathing freshwater carnivore, which has enormous economic importance. This species is affected by an oomycete fungus, Aphanomyces invadans and a Gram negative bacteria Aeromonas hydrophila is known to cause secondary infection. These pathogens impose immune changes in the host organism, which in turn mounts several immune responses. Of these, the role of cytokines in the immune response is immense, due to their involvement in several activities of inflammation such as cell trafficking to the site of inflammation and antigen presentation. Given that importance, chemokines in fishes do have significant role in the immunological and other physiological functions of the organism, hence there is a need to understand the characteristics, activities and performace of these small molecules in details.
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Affiliation(s)
- Prasanth Bhatt
- Division of Fisheries Biotechnology & Molecular Biology, Department of Biotechnology, Faculty of Science and Humanities, SRM University, Kattankulathur 603 203, Chennai, Tamil Nadu, India
| | - Venkatesh Kumaresan
- Division of Fisheries Biotechnology & Molecular Biology, Department of Biotechnology, Faculty of Science and Humanities, SRM University, Kattankulathur 603 203, Chennai, Tamil Nadu, India
| | - Rajesh Palanisamy
- Division of Fisheries Biotechnology & Molecular Biology, Department of Biotechnology, Faculty of Science and Humanities, SRM University, Kattankulathur 603 203, Chennai, Tamil Nadu, India
| | - Gayathri Ravichandran
- Division of Fisheries Biotechnology & Molecular Biology, Department of Biotechnology, Faculty of Science and Humanities, SRM University, Kattankulathur 603 203, Chennai, Tamil Nadu, India; SRM Research Institute, SRM University, Kattankulathur 603 203, Chennai, Tamil Nadu, India
| | - Kanchana Mala
- Medical College Hospital and Research Center, SRM University, Kattankulathur 603 203, Chennai, Tamil Nadu, India
| | - S M Nurul Amin
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Aziz Arshad
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia; Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor Darul Ehsan, Malaysia
| | - Fatimah Md Yusoff
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia; Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor Darul Ehsan, Malaysia
| | - Jesu Arockiaraj
- Division of Fisheries Biotechnology & Molecular Biology, Department of Biotechnology, Faculty of Science and Humanities, SRM University, Kattankulathur 603 203, Chennai, Tamil Nadu, India; Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor Darul Ehsan, Malaysia.
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Wells AJ, Hoffman JR, Jajtner AR, Varanoske AN, Church DD, Gonzalez AM, Townsend JR, Boone CH, Baker KM, Beyer KS, Mangine GT, Oliveira LP, Fukuda DH, Stout JR. Monocyte Recruitment after High-Intensity and High-Volume Resistance Exercise. Med Sci Sports Exerc 2017; 48:1169-78. [PMID: 26784277 DOI: 10.1249/mss.0000000000000878] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
UNLABELLED The innate immune response is generally considered to have an important role in tissue remodeling after resistance exercise. PURPOSE The purpose of this study was to compare changes in markers of monocyte recruitment after an acute bout of high-intensity (HVY) versus high-volume (VOL) lower-body resistance exercise. METHODS Ten resistance-trained men (24.7 ± 3.4 yr, 90.1 ± 11.3 kg, 176.0 ± 4.9 cm) performed each protocol in a randomized, counterbalanced order. Blood samples were collected at baseline, immediately (IP), 30 min (30P), 1 h (1H), 2 h (2H), and 5 h (5H) postexercise. Plasma concentrations of monocyte chemoattractant protein 1 (MCP-1), tumor necrosis factor alpha (TNF-α), myoglobin, and cortisol were measured via assay. Tumor necrosis factor receptor 1 (TNFr1), macrophage-1 antigen (cluster of differentiation 11b [CD11b]), and C-C chemokine receptor 2 (CCR2) expression levels were measured using flow cytometry. TNFr1 and CD11b were assessed on CD14CD16 monocytes, whereas CCR2 was assessed on CD14 monocytes. RESULTS Plasma myoglobin concentrations were significantly greater after HVY compared with VOL (P < 0.001). Changes in plasma TNF-α, MCP-1, and expression levels of CCR2 and CD11b were similar between HVY and VOL. When collapsed across groups, TNF-α was significantly increased at IP, 30P, 1H, and 2H (P values < 0.05), whereas MCP-1 was significantly elevated at all postexercise time points (P values < 0.05). CCR2 expression on CD14 monocytes was significantly lower at IP, 1H, 2H, and 5H (P values < 0.05). CD11b expression on CD14 CD16 was significantly greater at IP (P < 0.014) and 1H (P = 0.009). TNFr1 expression did not differ from baseline at any time point. Plasma cortisol concentrations did not seem to be related to receptor expression. CONCLUSIONS Results indicate that both HVY and VOL protocols stimulate a robust proinflammatory response. However, no differences were noted between resistance exercise training paradigms.
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Affiliation(s)
- Adam J Wells
- 1School of Health and Kinesiology, Georgia Southern University, Statesboro, GA; 2Institute of Exercise Physiology and Wellness; University of Central Florida, Orlando, FL; 3Department of Health Professions, Hofstra University, Hempstead, NY; and 4Department of Exercise Science and Sport Management, Kennesaw State University, Kennesaw, GA
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Glycosaminoglycan Interactions with Chemokines Add Complexity to a Complex System. Pharmaceuticals (Basel) 2017; 10:ph10030070. [PMID: 28792472 PMCID: PMC5620614 DOI: 10.3390/ph10030070] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 07/24/2017] [Accepted: 07/24/2017] [Indexed: 12/12/2022] Open
Abstract
Chemokines have two types of interactions that function cooperatively to control cell migration. Chemokine receptors on migrating cells integrate signals initiated upon chemokine binding to promote cell movement. Interactions with glycosaminoglycans (GAGs) localize chemokines on and near cell surfaces and the extracellular matrix to provide direction to the cell movement. The matrix of interacting chemokine–receptor partners has been known for some time, precise signaling and trafficking properties of many chemokine–receptor pairs have been characterized, and recent structural information has revealed atomic level detail on chemokine–receptor recognition and activation. However, precise knowledge of the interactions of chemokines with GAGs has lagged far behind such that a single paradigm of GAG presentation on surfaces is generally applied to all chemokines. This review summarizes accumulating evidence which suggests that there is a great deal of diversity and specificity in these interactions, that GAG interactions help fine-tune the function of chemokines, and that GAGs have other roles in chemokine biology beyond localization and surface presentation. This suggests that chemokine–GAG interactions add complexity to the already complex functions of the receptors and ligands.
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13
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Nandi A, Bishayi B. CCR-2 neutralization augments murine fresh BMC activation by Staphylococcus aureus via two distinct mechanisms: at the level of ROS production and cytokine response. Innate Immun 2017; 23:345-372. [PMID: 28409543 DOI: 10.1177/1753425917697806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
CCR-2 signaling regulates recruitment of monocytes from the bone marrow into the bloodstream and then to sites of infection. We sought to determine whether CCL-2/CCR-2 signaling is involved in the killing of Staphylococcus aureus by murine bone marrow cells (BMCs). The intermittent link of reactive oxygen species (ROS)-NF-κB/p38-MAPK-mediated CCL-2 production in CCR-2 signaling prompted us to determine whether neutralization of CCR-2 augments the response of murine fresh BMCs (FBMCs) after S. aureus infection. It was observed that anti-CCR-2 Ab-treated FBMCs released fewer ROS on encountering S. aureus infection than CCR-2 non-neutralized FBMCs, also correlating with reduced killing of S. aureus in CCR-2 neutralized FBMCs. Staphylococcal catalase and SOD were also found to play a role in protecting S. aureus from the ROS-mediated killing of FBMC. S. aureus infection of CCR-2 intact FBMCs pre-treated with either NF-κB or p-38-MAPK blocker induced less CCL-2, suggesting that NF-κB or p-38-MAPK is required for CCL-2 production by FBMCs. Moreover, blocking of CCR-2 along with NF-κB or p-38-MAPK resulted in elevated CCL-2 production and reduced CCR-2 expression. Inhibition of CCR-2 impairs the response of murine BMCs to S. aureus infection by attenuation ROS production and modulating the cytokine response.
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Affiliation(s)
- Ajeya Nandi
- Department of Physiology, Immunology Laboratory, University of Calcutta, University Colleges of Science and Technology, West Bengal, India
| | - Biswadev Bishayi
- Department of Physiology, Immunology Laboratory, University of Calcutta, University Colleges of Science and Technology, West Bengal, India
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14
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CCL2 nitration is a negative regulator of chemokine-mediated inflammation. Sci Rep 2017; 7:44384. [PMID: 28290520 PMCID: PMC5349559 DOI: 10.1038/srep44384] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/25/2017] [Indexed: 12/12/2022] Open
Abstract
Chemokines promote leukocyte recruitment during inflammation. The oxidative burst is an important effector mechanism, this leads to the generation of reactive nitrogen species (RNS), including peroxynitrite (ONOO). The current study was performed to determine the potential for nitration to alter the chemical and biological properties of the prototypical CC chemokine, CCL2. Immunofluorescence was performed to assess the presence of RNS in kidney biopsies. Co-localisation was observed between RNS-modified tyrosine residues and the chemokine CCL2 in diseased kidneys. Nitration reduced the potential of CCL2 to stimulate monocyte migration in diffusion gradient chemotaxis assays (p < 0.05). This was consistent with a trend towards reduced affinity of the nitrated chemokine for its cognate receptor CCR2b. The nitrated chemokine was unable to induce transendothelial monocyte migration in vitro and failed to promote leukocyte recruitment when added to murine air pouches (p < 0.05). This could potentially be attributed to reduced glycosaminoglycan binding ability, as surface plasmon resonance spectroscopy showed that nitration reduced heparan sulphate binding by CCL2. Importantly, intravenous administration of nitrated CCL2 also inhibited the normal recruitment of leukocytes to murine air pouches filled with unmodified CCL2. Together these data suggest that nitration of CCL2 during inflammation provides a mechanism to limit and resolve acute inflammation.
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15
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Miller RL, Dykstra AB, Wei W, Holsclaw C, Turnbull JE, Leary JA. Enrichment of Two Isomeric Heparin Oligosaccharides Exhibiting Different Affinities toward Monocyte Chemoattractant Protein-1. Anal Chem 2016; 88:11551-11558. [PMID: 27801570 DOI: 10.1021/acs.analchem.6b02803] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Chemokine-GAG interactions are crucial to facilitate chemokine immobilization, resulting in the formation of chemokine gradients that guide cell migration. Here we demonstrate chromatographic isolation and purification of two heparin hexasaccharide isomers that interact with the oligomeric chemokine Monocyte Chemoattractant Protein-1 (MCP-1)/CCL2 with different binding affinities. The sequences of these two hexasaccharides were deduced from unique MS/MS product ions and HPLC compositional analysis. Ion mobility mass spectrometry (IM-MS) showed that the two isolated oligosaccharides have different conformations and both displayed preferential binding for one of the two distinct conformations known for MCP-1 dimers. A significant shift in arrival time distribution of close to 70 Å2 was observed, indicating a more compact protein:hexasaccharide conformation. Clear differences in the MS spectra between bound and unbound protein allowed calculation of Kd values from the resulting data. The structural difference between the two hexasaccharides was defined as the differential location of a single sulfate at either C-6 of glucosamine or C-2 of uronic acid in the reducing disaccharide, resulting in a 200-fold difference in binding affinity for MCP-1. These data indicate sequence specificity for high affinity binding, supporting the view that sulfate position, and not simply the number of sulfates, is important for heparan sulfate protein binding.
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Affiliation(s)
- Rebecca L Miller
- Departments of Molecular and Cellular Biology and Chemistry, University of California , 1 Shields Drive, Davis, California 95616, United States
| | - Andrew B Dykstra
- Departments of Molecular and Cellular Biology and Chemistry, University of California , 1 Shields Drive, Davis, California 95616, United States
| | - Wei Wei
- Departments of Molecular and Cellular Biology and Chemistry, University of California , 1 Shields Drive, Davis, California 95616, United States
| | - Cynthia Holsclaw
- Departments of Molecular and Cellular Biology and Chemistry, University of California , 1 Shields Drive, Davis, California 95616, United States
| | - Jeremy E Turnbull
- Centre for Glycobiology, Department of Biochemistry, Institute of Integrative Biology, University of Liverpool , Crown Street, Liverpool, L69 7ZB, England
| | - Julie A Leary
- Departments of Molecular and Cellular Biology and Chemistry, University of California , 1 Shields Drive, Davis, California 95616, United States
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16
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Greathouse KM, Palladino SP, Dong C, Helton ES, Ubogu EE. Modeling leukocyte trafficking at the human blood-nerve barrier in vitro and in vivo geared towards targeted molecular therapies for peripheral neuroinflammation. J Neuroinflammation 2016; 13:3. [PMID: 26732309 PMCID: PMC4702318 DOI: 10.1186/s12974-015-0469-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 12/24/2015] [Indexed: 12/19/2022] Open
Abstract
Peripheral neuroinflammation is characterized by hematogenous mononuclear leukocyte infiltration into peripheral nerves. Despite significant clinical knowledge, advancements in molecular biology and progress in developing specific drugs for inflammatory disorders such as rheumatoid arthritis, inflammatory bowel disease, and multiple sclerosis, there are currently no specific therapies that modulate pathogenic peripheral nerve inflammation. Modeling leukocyte trafficking at the blood-nerve barrier using a reliable human in vitro model and potential intravital microscopy techniques in representative animal models guided by human observational data should facilitate the targeted modulation of the complex inflammatory cascade needed to develop safe and efficacious therapeutics for immune-mediated neuropathies and chronic neuropathic pain.
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Affiliation(s)
- Kelsey M Greathouse
- Department of Neurology, Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, The University of Alabama at Birmingham, 1825 University Boulevard, Room 1131, Birmingham, AL, 35294-0017, USA.
| | - Steven P Palladino
- Department of Neurology, Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, The University of Alabama at Birmingham, 1825 University Boulevard, Room 1131, Birmingham, AL, 35294-0017, USA.
| | - Chaoling Dong
- Department of Neurology, Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, The University of Alabama at Birmingham, 1825 University Boulevard, Room 1131, Birmingham, AL, 35294-0017, USA.
| | - Eric S Helton
- Department of Neurology, Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, The University of Alabama at Birmingham, 1825 University Boulevard, Room 1131, Birmingham, AL, 35294-0017, USA.
| | - Eroboghene E Ubogu
- Department of Neurology, Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, The University of Alabama at Birmingham, 1825 University Boulevard, Room 1131, Birmingham, AL, 35294-0017, USA.
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17
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Carvallo L, Lopez L, Che FY, Lim J, Eugenin EA, Williams DW, Nieves E, Calderon TM, Madrid-Aliste C, Fiser A, Weiss L, Angeletti RH, Berman JW. Buprenorphine decreases the CCL2-mediated chemotactic response of monocytes. THE JOURNAL OF IMMUNOLOGY 2015; 194:3246-58. [PMID: 25716997 DOI: 10.4049/jimmunol.1302647] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Despite successful combined antiretroviral therapy, ∼ 60% of HIV-infected people exhibit HIV-associated neurocognitive disorders (HAND). CCL2 is elevated in the CNS of infected people with HAND and mediates monocyte influx into the CNS, which is critical in neuroAIDS. Many HIV-infected opiate abusers have increased neuroinflammation that may augment HAND. Buprenorphine is used to treat opiate addiction. However, there are few studies that examine its impact on HIV neuropathogenesis. We show that buprenorphine reduces the chemotactic phenotype of monocytes. Buprenorphine decreases the formation of membrane projections in response to CCL2. It also decreases CCL2-induced chemotaxis and mediates a delay in reinsertion of the CCL2 receptor, CCR2, into the cell membrane after CCL2-mediated receptor internalization, suggesting a mechanism of action of buprenorphine. Signaling pathways in CCL2-induced migration include increased phosphorylation of p38 MAPK and of the junctional protein JAM-A. We show that buprenorphine decreases these phosphorylations in CCL2-treated monocytes. Using DAMGO, CTAP, and Nor-BNI, we demonstrate that the effect of buprenorphine on CCL2 signaling is opioid receptor mediated. To identify additional potential mechanisms by which buprenorphine inhibits CCL2-induced monocyte migration, we performed proteomic analyses to characterize additional proteins in monocytes whose phosphorylation after CCL2 treatment was inhibited by buprenorphine. Leukosialin and S100A9 were identified and had not been shown previously to be involved in monocyte migration. We propose that buprenorphine limits CCL2-mediated monocyte transmigration into the CNS, thereby reducing neuroinflammation characteristic of HAND. Our findings underscore the use of buprenorphine as a therapeutic for neuroinflammation as well as for addiction.
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Affiliation(s)
- Loreto Carvallo
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Lillie Lopez
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Fa-Yun Che
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Jihyeon Lim
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Eliseo A Eugenin
- Public Health Research Institute, Newark, NJ 07103; Department of Microbiology and Molecular Genetics, Rutgers New Jersey Medical School, Rutgers The State University of New Jersey, Newark, NJ 07103
| | - Dionna W Williams
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Edward Nieves
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Tina M Calderon
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Carlos Madrid-Aliste
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, NY 10461; and
| | - Andras Fiser
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, NY 10461; and
| | - Louis Weiss
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Ruth Hogue Angeletti
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Joan W Berman
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461; Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY 10461
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18
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Kufareva I, Salanga CL, Handel TM. Chemokine and chemokine receptor structure and interactions: implications for therapeutic strategies. Immunol Cell Biol 2015; 93:372-83. [PMID: 25708536 DOI: 10.1038/icb.2015.15] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 01/09/2015] [Accepted: 01/09/2015] [Indexed: 12/15/2022]
Abstract
The control of cell migration by chemokines involves interactions with two types of receptors: seven transmembrane chemokine-type G protein-coupled receptors and cell surface or extracellular matrix-associated glycosaminoglycans. Coordinated interaction of chemokines with both types of receptors is required for directional migration of cells in numerous physiological and pathological processes. Accumulated structural information, culminating most recently in the structure of a chemokine receptor in complex with a chemokine, has led to a view where chemokine oligomers bind to glycosaminoglycans through epitopes formed when chemokine subunits come together, while chemokine monomers bind to receptors in a pseudo two-step mechanism of receptor activation. Exploitation of this structural knowledge has and will continue to provide important information for therapeutic strategies, as described in this review.
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Affiliation(s)
- Irina Kufareva
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, USA
| | - Catherina L Salanga
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, USA
| | - Tracy M Handel
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, USA
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19
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Liang WG, Ren M, Zhao F, Tang WJ. Structures of human CCL18, CCL3, and CCL4 reveal molecular determinants for quaternary structures and sensitivity to insulin-degrading enzyme. J Mol Biol 2015; 427:1345-1358. [PMID: 25636406 PMCID: PMC4355285 DOI: 10.1016/j.jmb.2015.01.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 01/07/2015] [Accepted: 01/21/2015] [Indexed: 11/23/2022]
Abstract
CC chemokine ligands (CCL) are 8-14 kDa signaling proteins involved in diverse immune functions. While CCLs share similar tertiary structures, oligomerization produces highly diverse quaternary structures that protect chemokines from proteolytic degradation and modulate their functions. CCL18 is closely related to CCL3 and CCL4 with respect to both protein sequence and genomic location, yet CCL18 has distinct biochemical and biophysical properties. Here, we report a crystal structure of human CCL18 and its oligomerization states in solution based on crystallographic and small angle X-ray scattering (SAXS) analyses. Our data shows that CCL18 adopts an α-helical conformation at its N-terminus that weakens its dimerization, explaining CCL18’s preference for the monomeric state. Multiple contacts between monomers allow CCL18 to reversibly form a unique open-ended oligomer different from those of CCL3, CCL4, and CCL5. Furthermore, these differences hinge on proline 8, which is conserved in CCL3 and CCL4, but is replaced by lysine in human CCL18. Our structural analyses suggest that a proline 8 to alanine mutation stabilizes a type I β-turn at the N-terminus of CCL4 to prevent dimerization but prevents dimers from making key contacts with each other in CCL3. Thus, the P8A mutation induces depolymerization of CCL3 and CCL4 by distinct mechanisms. Finally, we used structural, biochemical, and functional analyses to unravel why insulin-degrading enzyme (IDE) degrades CCL3 and CCL4 but not CCL18. Our results elucidate the molecular basis for the oligomerization of three closely related CC chemokines and suggest how oligomerization shapes CCL chemokine function.
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Affiliation(s)
- Wenguang G Liang
- Ben May Department for Cancer Research, The University of Chicago, IL 60637, USA
| | - Min Ren
- Ben May Department for Cancer Research, The University of Chicago, IL 60637, USA
| | - Fan Zhao
- Ben May Department for Cancer Research, The University of Chicago, IL 60637, USA
| | - Wei-Jen Tang
- Ben May Department for Cancer Research, The University of Chicago, IL 60637, USA.
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20
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Liu L, Wang L, Wu Y, Peng B. The expression of MCP-1 and CCR2 in induced rats periapical lesions. Arch Oral Biol 2014; 59:492-9. [DOI: 10.1016/j.archoralbio.2014.02.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 01/26/2014] [Accepted: 02/13/2014] [Indexed: 10/25/2022]
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21
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Salanga CL, Dyer DP, Kiselar JG, Gupta S, Chance MR, Handel TM. Multiple glycosaminoglycan-binding epitopes of monocyte chemoattractant protein-3/CCL7 enable it to function as a non-oligomerizing chemokine. J Biol Chem 2014; 289:14896-912. [PMID: 24727473 DOI: 10.1074/jbc.m114.547737] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The interaction of chemokines with glycosaminoglycans (GAGs) facilitates the formation of localized chemokine gradients that provide directional signals for migrating cells. In this study, we set out to understand the structural basis and impact of the differing oligomerization propensities of the chemokines monocyte chemoattractant protein (MCP)-1/CCL2 and MCP-3/CCL7 on their ability to bind GAGs. These chemokines provide a unique comparison set because CCL2 oligomerizes and oligomerization is required for its full in vivo activity, whereas CCL7 functions as a monomer. To identify the GAG-binding determinants of CCL7, an unbiased hydroxyl radical footprinting approach was employed, followed by a focused mutagenesis study. Compared with the size of the previously defined GAG-binding epitope of CCL2, CCL7 has a larger binding site, consisting of multiple epitopes distributed along its surface. Furthermore, surface plasmon resonance (SPR) studies indicate that CCL7 is able to bind GAGs with an affinity similar to CCL2 but higher than the non-oligomerizing variant, CCL2(P8A), suggesting that, in contrast to CCL2, the large cluster of GAG-binding residues in CCL7 renders oligomerization unnecessary for high affinity binding. However, the affinity of CCL7 is more sensitive than CCL2 to the density of heparan sulfate on the SPR surfaces; this is likely due to the inability of CCL7 to oligomerize because CCL2(P8A) also binds significantly less tightly to low than high density heparan sulfate surfaces compared with CCL2. Together, the data suggest that CCL7 and CCL2 are non-redundant chemokines and that GAG chain density may provide a mechanism for regulating the accumulation of chemokines on cell surfaces.
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Affiliation(s)
- Catherina L Salanga
- From the Skaggs School of Pharmacy and Pharmaceutical Science, University of California, San Diego, La Jolla, California 92093-0684 and
| | - Douglas P Dyer
- From the Skaggs School of Pharmacy and Pharmaceutical Science, University of California, San Diego, La Jolla, California 92093-0684 and
| | | | - Sayan Gupta
- the Center for Proteomics and Bioinformatics and Center for Synchrotron Biosciences, Case Western Reserve University, Cleveland, Ohio 44106
| | - Mark R Chance
- the Center for Proteomics and Bioinformatics and Center for Synchrotron Biosciences, Case Western Reserve University, Cleveland, Ohio 44106
| | - Tracy M Handel
- From the Skaggs School of Pharmacy and Pharmaceutical Science, University of California, San Diego, La Jolla, California 92093-0684 and
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22
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Structure-based studies of chemokine receptors. Curr Opin Struct Biol 2013; 23:539-46. [DOI: 10.1016/j.sbi.2013.05.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 05/01/2013] [Indexed: 11/23/2022]
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23
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Zhao A, Yang Z, Sun R, Grinchuk V, Netzel-Arnett S, Anglin IE, Driesbaugh KH, Notari L, Bohl JA, Madden KB, Urban JF, Antalis TM, Shea-Donohue T. SerpinB2 is critical to Th2 immunity against enteric nematode infection. THE JOURNAL OF IMMUNOLOGY 2013; 190:5779-87. [PMID: 23630350 DOI: 10.4049/jimmunol.1200293] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
SerpinB2, a member of the serine protease inhibitor family, is expressed by macrophages and is significantly upregulated by inflammation. Recent studies implicated a role for SerpinB2 in the control of Th1 and Th2 immune responses, but the mechanisms of these effects are unknown. In this study, we used mice deficient in SerpinB2 (SerpinB2(-/-)) to investigate its role in the host response to the enteric nematode, Heligmosomoides bakeri. Nematode infection induced a STAT6-dependent increase in intestinal SerpinB2 expression. The H. bakeri-induced upregulation of IL-4 and IL-13 expression was attenuated in SerpinB2(-/-) mice coincident with an impaired worm clearance. In addition, lack of SerpinB2 in mice resulted in a loss of the H. bakeri-induced smooth muscle hypercontractility and a significant delay in infection-induced increase in mucosal permeability. Th2 immunity is generally linked to a CCL2-mediated increase in the infiltration of macrophages that develop into the alternatively activated phenotype (M2). In H. bakeri-infected SerpinB2(-/-) mice, there was an impaired infiltration and alternative activation of macrophages accompanied by a decrease in the intestinal CCL2 expression. Studies in macrophages isolated from SerpinB2(-/-) mice showed a reduced CCL2 expression, but normal M2 development, in response to stimulation of Th2 cytokines. These data demonstrate that the immune regulation of SerpinB2 expression plays a critical role in the development of Th2-mediated protective immunity against nematode infection by a mechanism involving CCL2 production and macrophage infiltration.
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Affiliation(s)
- Aiping Zhao
- Department of Medicine, Mucosal Biology Research Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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24
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Adage T, Piccinini AM, Falsone A, Trinker M, Robinson J, Gesslbauer B, Kungl AJ. Structure-based design of decoy chemokines as a way to explore the pharmacological potential of glycosaminoglycans. Br J Pharmacol 2013; 167:1195-205. [PMID: 22747966 DOI: 10.1111/j.1476-5381.2012.02089.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Glycosaminoglycans (GAGs) are a class of highly negatively charged, unbranched, O-linked polysaccharides that are involved in many diseases. Their role as a protein-binding matrix on cell surfaces has long been recognized, but therapeutic approaches to interfere with protein-GAG interactions have been limited due to the complex chemistry of GAGs, on one hand, and due to the lack of specific antibodies against GAGs, on the other hand. We have developed a protein engineering platform (the so-called CellJammer(®) technology), which enables us to introduce higher GAG-binding affinity into wild-type GAG-binding proteins and to combine this with impaired biological, receptor-binding function. Chemokines are among the prototypic GAG-binding proteins and here we present selected results of our CellJammer technology applied to several of these proinflammatory proteins. An overview is given of our lead decoy protein, PA401, which is a CXCL8-based mutant protein with increased GAG-binding affinity and decreased CXCR1/2 binding and activation. Major results from our CCL2 and CCL5 programmes are also summarized and the potential for clinical application of these decoy proteins is presented.
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25
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Tan JHY, Ludeman JP, Wedderburn J, Canals M, Hall P, Butler SJ, Taleski D, Christopoulos A, Hickey MJ, Payne RJ, Stone MJ. Tyrosine sulfation of chemokine receptor CCR2 enhances interactions with both monomeric and dimeric forms of the chemokine monocyte chemoattractant protein-1 (MCP-1). J Biol Chem 2013; 288:10024-10034. [PMID: 23408426 DOI: 10.1074/jbc.m112.447359] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Chemokine receptors are commonly post-translationally sulfated on tyrosine residues in their N-terminal regions, the initial site of binding to chemokine ligands. We have investigated the effect of tyrosine sulfation of the chemokine receptor CCR2 on its interactions with the chemokine monocyte chemoattractant protein-1 (MCP-1/CCL2). Inhibition of CCR2 sulfation, by growth of expressing cells in the presence of sodium chlorate, significantly reduced the potency for MCP-1 activation of CCR2. MCP-1 exists in equilibrium between monomeric and dimeric forms. The obligate monomeric mutant MCP-1(P8A) was similar to wild type MCP-1 in its ability to induce leukocyte recruitment in vivo, whereas the obligate dimeric mutant MCP-1(T10C) was less effective at inducing leukocyte recruitment in vivo. In two-dimensional NMR experiments, sulfated peptides derived from the N-terminal region of CCR2 bound to both the monomeric and dimeric forms of wild type MCP-1 and shifted the equilibrium to favor the monomeric form. Similarly, MCP-1(P8A) bound more tightly than MCP-1(T10C) to the CCR2-derived sulfopeptides. NMR chemical shift mapping using the MCP-1 mutants showed that the sulfated N-terminal region of CCR2 binds to the same region (N-loop and β3-strand) of both monomeric and dimeric MCP-1 but that binding to the dimeric form also influences the environment of chemokine N-terminal residues, which are involved in dimer formation. We conclude that interaction with the sulfated N terminus of CCR2 destabilizes the dimerization interface of inactive dimeric MCP-1, thus inducing dissociation to the active monomeric state.
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Affiliation(s)
- Joshua H Y Tan
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Justin P Ludeman
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Jamie Wedderburn
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Meritxell Canals
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Pam Hall
- Centre for Inflammatory Diseases, Monash University, Department of Medicine, Monash Medical Centre, Clayton, Victoria 3168, Australia
| | - Stephen J Butler
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Deni Taleski
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Arthur Christopoulos
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Michael J Hickey
- Centre for Inflammatory Diseases, Monash University, Department of Medicine, Monash Medical Centre, Clayton, Victoria 3168, Australia
| | - Richard J Payne
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Martin J Stone
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia.
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26
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Andrade I, Taddei SR, Souza PE. Inflammation and Tooth Movement: The Role of Cytokines, Chemokines, and Growth Factors. Semin Orthod 2012. [DOI: 10.1053/j.sodo.2012.06.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Koenen R, Weber C. Chemokines and Their Receptors as Therapeutic Targets in Atherosclerosis. Atherosclerosis 2012. [DOI: 10.1201/b13723-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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The CCL2 synthesis inhibitor bindarit targets cells of the neurovascular unit, and suppresses experimental autoimmune encephalomyelitis. J Neuroinflammation 2012; 9:171. [PMID: 22788993 PMCID: PMC3488971 DOI: 10.1186/1742-2094-9-171] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Accepted: 07/12/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Production of the chemokine CCL2 by cells of the neurovascular unit (NVU) drives critical aspects of neuroinflammation. Suppression of CCL2 therefore holds promise in treating neuroinflammatory disease. Accordingly, we sought to determine if the compound bindarit, which inhibits CCL2 synthesis, could repress the three NVU sources of CCL2 most commonly reported in neuroinflammation--astrocytes, microglia and brain microvascular endothelial cells (BMEC)--as well as modify the clinical course of neuroinflammatory disease. METHODS The effect of bindarit on CCL2 expression by cultured murine astrocytes, microglia and BMEC was examined by quantitative reverse transcription polymerase chain reaction (qRT-PCR). Bindarit action on mouse brain and spinal cord in vivo was similarly investigated by qRT-PCR following LPS injection in mice. And to further gauge the potential remedial effects of bindarit on neuroinflammatory disease, its impact on the clinical course of experimental autoimmune encephalomyelitis (EAE) in mice was also explored. RESULTS Bindarit repressed CCL2 expression by all three cultured cells, and antagonized upregulated expression of CCL2 in both brain and spinal cord in vivo following LPS administration. Bindarit also significantly modified the course and severity of clinical EAE, diminished the incidence and onset of disease, and evidenced signs of disease reversal. CONCLUSION Bindarit was effective in suppressing CCL2 expression by cultured NVU cells as well as brain and spinal cord tissue in vivo. It further modulated the course of clinical EAE in both preventative and therapeutic ways. Collectively, these results suggest that bindarit might prove an effective treatment for neuroinflammatory disease.
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Panee J. Monocyte Chemoattractant Protein 1 (MCP-1) in obesity and diabetes. Cytokine 2012; 60:1-12. [PMID: 22766373 DOI: 10.1016/j.cyto.2012.06.018] [Citation(s) in RCA: 276] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 05/30/2012] [Accepted: 06/04/2012] [Indexed: 12/23/2022]
Abstract
Monocyte Chemoattractant Protein-1 (MCP-1) is the first discovered and most extensively studied CC chemokine, and the amount of studies on its role in the etiologies of obesity- and diabetes-related diseases have increased exponentially during the past two decades. This review attempted to provide a panoramic perspective of the history, regulatory mechanisms, functions, and therapeutic strategies of this chemokine. The highlights of this review include the roles of MCP-1 in the development of obesity, diabetes, cardiovascular diseases, insulitis, diabetic nephropathy, and diabetic retinopathy. Therapies that specifically or non-specifically inhibit MCP-1 overproduction have been summarized.
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Affiliation(s)
- Jun Panee
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo Street BSB 222, Honolulu, HI 96813, USA.
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Volpe S, Cameroni E, Moepps B, Thelen S, Apuzzo T, Thelen M. CCR2 acts as scavenger for CCL2 during monocyte chemotaxis. PLoS One 2012; 7:e37208. [PMID: 22615942 PMCID: PMC3355119 DOI: 10.1371/journal.pone.0037208] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 04/18/2012] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Leukocyte migration is essential for effective host defense against invading pathogens and during immune homeostasis. A hallmark of the regulation of this process is the presentation of chemokines in gradients stimulating leukocyte chemotaxis via cognate chemokine receptors. For efficient migration, receptor responsiveness must be maintained whilst the cells crawl on cell surfaces or on matrices along the attracting gradient towards increasing concentrations of agonist. On the other hand agonist-induced desensitization and internalization is a general paradigm for chemokine receptors which is inconsistent with the prolonged migratory capacity. METHODOLOGY/PRINCIPAL FINDINGS Chemotaxis of monocytes was monitored in response to fluorescent CCL2-mCherry by time-lapse video microscopy. Uptake of the fluorescent agonist was used as indirect measure to follow the endogenous receptor CCR2 expressed on primary human monocytes. During chemotaxis CCL2-mCherry becomes endocytosed as cargo of CCR2, however, the internalization of CCR2 is not accompanied by reduced responsiveness of the cells due to desensitization. CONCLUSIONS/SIGNIFICANCE During chemotaxis CCR2 expressed on monocytes internalizes with the bound chemoattractant, but cycles rapidly back to the plasma membrane to maintain high responsiveness. Moreover, following relocation of the source of attractant, monocytes can rapidly reverse their polarization axis organizing a new leading edge along the newly formed gradient, suggesting a uniform distribution of highly receptive CCR2 on the plasma membrane. The present observations further indicate that during chemotaxis CCR2 acts as scavenger consuming the chemokine forming the attracting cue.
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Affiliation(s)
- Silvia Volpe
- Institute for Research in Biomedicine, Bellinzona, Switzerland
| | | | - Barbara Moepps
- Institute of Pharmacology and Toxicology, University of Ulm Medical Center, Ulm, Germany
| | - Sylvia Thelen
- Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - Tiziana Apuzzo
- Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - Marcus Thelen
- Institute for Research in Biomedicine, Bellinzona, Switzerland
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Role of CCR2 in orthodontic tooth movement. Am J Orthod Dentofacial Orthop 2012; 141:153-60. [DOI: 10.1016/j.ajodo.2011.07.019] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Revised: 07/01/2011] [Accepted: 07/01/2011] [Indexed: 01/15/2023]
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Kalderén C, Forsgren M, Karlström U, Stefansson K, Svensson R, Berglund MM, Palm G, Selander M, Sundbom M, Nilsson J, Sjögren A, Zachrisson K, Gelius SS. A truncated analogue of CCL2 mediates anti-fibrotic effects on murine fibroblasts independently of CCR2. Biochem Pharmacol 2011; 83:644-52. [PMID: 22177985 DOI: 10.1016/j.bcp.2011.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 11/30/2011] [Accepted: 12/01/2011] [Indexed: 10/14/2022]
Abstract
The truncated [1+9-76] CCL2 analogue, also known as 7ND, has been described in numerous reports as an anti-inflammatory and anti-fibrotic agent in a wide spectrum of animal models, e.g. models of cardiovascular disease, graft versus host disease and bleomycin-induced pulmonary fibrosis. 7ND has been reported to function as a competitive inhibitor of CCL2 signaling via CCR2 in human in vitro systems. In contrast, the mechanistic basis of 7ND action in animal models has not been previously reported. Here we have studied how 7ND interacts with CCL2 and CCR2 of murine origin. Surprisingly, 7ND was shown to be a weak inhibitor of murine CCL2/CCR2 signaling and displaced murine CCL2 (JE) from the receptor with a K(i)>1 μM. Using surface plasmon resonance, we found that 7ND binds murine CCL2 with a K(d) of 670 nM, which may indicate that 7ND inhibits murine CCL2/CCR2 signaling by a dominant negative mechanism rather than by competitive binding to the CCR2 receptor. In addition we observed that sub-nanomolar levels of 7ND mediate anti-fibrotic effects in CCR2 negative fibroblasts cultured from fibrotic lung of bleomycin-induced mice. Basal levels of extracellular matrix proteins were reduced (collagen type 1 and fibronectin) as well as expression levels of α-smooth muscle actin and CCL2. Our conclusion from these data is that the previously reported effects of 7ND in murine disease models most probably are mediated via mechanisms independent of CCR2.
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Tung D, Cheung PH, Ciallella J, Saha S. Novel anti-inflammatory effects of repaglinide in rodent models of inflammation. Pharmacology 2011; 88:295-301. [PMID: 22086064 DOI: 10.1159/000333793] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Accepted: 09/26/2011] [Indexed: 01/04/2023]
Abstract
BACKGROUND Repaglinide is an FDA-approved treatment for type 2 diabetes mellitus. The anti-inflammatory effect of repaglinide in the absence of diabetes has not been reported previously. It is the objective of this set of studies to investigate the potential anti-inflammatory effects of repaglinide. METHOD The in vivo anti-inflammatory effects of repaglinide were studied in two different models of delay type hyperreactivity (DTH) response induced by sheep red blood cells (sRBC) and 2,5'-dinitrofluorobenzene (DNFB), and in two different rodent models of lipopolysaccharide (LPS) challenge. RESULTS In mice systemically sensitized with sRBC, which subsequently received a local injection of sRBC in the footpad, local swelling occurred within 24 h after challenge. Repaglinide was efficacious in attenuating this response. In an orthogonal DTH model using DNFB as the antigen, the animals received topical sensitization with DNFB on their shaved backs, followed by topical challenge on the left ears. Repaglinide efficaciously downregulated the resulting ear swelling response. In mice challenged systemically or intratracheally with LPS, repaglinide significantly decreased serum tumor necrosis factor α level and bronchial alveolar lavage fluid MCP-1 levels, respectively. CONCLUSION This set of data suggests novel anti-inflammatory effects of repaglinide in nondiabetic animals. However, the high dose required for an efficacious effect would make this application impractical in the clinic.
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Affiliation(s)
- David Tung
- BioMed Valley Discoveries, Kansas City, Mo. 64111, USA.
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Piccard H, Berghmans N, Korpos E, Dillen C, Aelst IV, Li S, Martens E, Liekens S, Noppen S, Damme JV, Sorokin L, Opdenakker G. Glycosaminoglycan mimicry by COAM reduces melanoma growth through chemokine induction and function. Int J Cancer 2011; 131:E425-36. [PMID: 21953247 DOI: 10.1002/ijc.26465] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Accepted: 08/02/2011] [Indexed: 11/08/2022]
Abstract
Chlorite-oxidized oxyamylose (COAM), a glycosaminoglycan mimetic and potent antiviral agent, provided significant growth reduction of syngeneic murine B16-F1 melanoma tumors. A single early dose (100 μg, into the site of tumor cell inoculation) was sufficient to establish a persistent effect over 17 days (resected tumor volume of 78.3 mm(3) in COAM-treated mice compared to 755.2 mm(3) in the control cohort, i.e., 89.6% reduction of tumor volumes). COAM was a much better antitumoral agent than the polyanionic glycosaminoglycan heparin. COAM retained its antitumoral effect in lymphopenic mice, reinforcing the idea of myeloid cell involvement. Massive recruitment of myeloid cells into dermal air pouches in response to COAM and their increased presence in early-treated tumors indicated that mainly CD11b(+) GR-1(+) myeloid cells were attracted by COAM to exert antitumoral effects. Leukocyte chemotaxis was mediated by the chemokine system through the induction in B16-F1 cells of mouse granulocyte chemotactic protein-2/CXCL6 upon COAM treatment. Thus, COAM constitutes a novel tool to study the role of innate immune cells in the initial stages of tumor development and an example that innate immunostimulating glycosaminoglycan mimicry may be exploited therapeutically.
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Affiliation(s)
- Helene Piccard
- Rega Institute for Medical Research, University of Leuven, Belgium
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Chevigné A, Fievez V, Schmit JC, Deroo S. Engineering and screening the N-terminus of chemokines for drug discovery. Biochem Pharmacol 2011; 82:1438-56. [DOI: 10.1016/j.bcp.2011.07.091] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 07/21/2011] [Accepted: 07/22/2011] [Indexed: 01/21/2023]
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Koenen RR, Weber C. Chemokines: established and novel targets in atherosclerosis. EMBO Mol Med 2011; 3:713-25. [PMID: 22038924 PMCID: PMC3377113 DOI: 10.1002/emmm.201100183] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 09/09/2011] [Accepted: 09/28/2011] [Indexed: 12/21/2022] Open
Abstract
In their role as small chemotactic cytokines, chemokines are crucial mediators and regulators of leukocyte trafficking during immune surveillance and inflammation. Their involvement in the development and progression of inflammatory diseases has been subject of intense investigation. Concordantly, the chemokine system has been explored in search for therapeutic targets to prevent or treat inflammatory disorders, such as atherosclerosis. Targeting the chemokine system offers various entry points for a causative treatment of this widespread and chronic illness. Although this approach has encountered some setbacks, several innovative compounds are currently in an advanced stage of development. In this review, the current standing of this dynamic field is highlighted and the potential advantages and drawbacks of particular strategies are discussed.
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Affiliation(s)
- Rory R Koenen
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University of Munich, Munich, Germany
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Trachtenberg A, Pushkarsky T, Heine S, Constant S, Brichacek B, Bukrinsky M. The level of CD147 expression correlates with cyclophilin-induced signalling and chemotaxis. BMC Res Notes 2011; 4:396. [PMID: 21989251 PMCID: PMC3198701 DOI: 10.1186/1756-0500-4-396] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Accepted: 10/11/2011] [Indexed: 12/16/2022] Open
Abstract
Background Previous studies identified CD147 as the chemotactic receptor on inflammatory leukocytes for extracellular cyclophilins (eCyp). However, CD147 is not known to associate with signal transducing molecules, so other transmembrane proteins, such as proteoglycans, integrins, and CD98, were suggested as receptor or co-receptor for eCyp. CD147 is ubiquitously expressed on many cell types, but relationship between the level of CD147 expression and cellular responses to eCyp has never been analyzed. Given the role of eCyp in pathogenesis of many diseases, it is important to know whether cellular responses to eCyp are regulated at the level of CD147 expression. Results Here, we manipulated CD147 expression levels on HeLa cells using RNAi and investigated the signalling and chemotactic responses to eCypA. Both Erk activation and chemotaxis correlated with the level of CD147 expression, with cells exhibiting low level expression being practically unresponsive to eCypA. Conclusions Our results provide the first demonstration of a chemotactic response of HeLa cells to eCypA, establish a correlation between the level of CD147 expression and the magnitude of cellular responses to eCypA, and indicate that CD147 may be a limiting factor in the receptor complex determining cyclophilin-induced Erk activation and cell migration.
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Koelink PJ, Overbeek SA, Braber S, de Kruijf P, Folkerts G, Smit MJ, Kraneveld AD. Targeting chemokine receptors in chronic inflammatory diseases: an extensive review. Pharmacol Ther 2011; 133:1-18. [PMID: 21839114 DOI: 10.1016/j.pharmthera.2011.06.008] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Accepted: 06/30/2011] [Indexed: 02/01/2023]
Abstract
The traffic of the different types of immune cells is an important aspect in the immune response. Chemokines are soluble peptides that are able to attract cells by interaction with chemokine receptors on their target cells. Several different chemokines and receptors exist enabling the specific trafficking of different immune cells. In chronic inflammatory disorders there is abundance of immune cells present at the inflammatory site. This review focuses on the role of chemokine receptors in chronic inflammatory disorders of the lungs, intestine, joints, skin and nervous system and the potential of targeting these receptors as therapeutic intervention in these disorders.
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Affiliation(s)
- Pim J Koelink
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Sciences, Utrecht University, Utrecht, The Netherlands
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Garin A, Proudfoot AEI. Chemokines as targets for therapy. Exp Cell Res 2011; 317:602-12. [PMID: 21376173 DOI: 10.1016/j.yexcr.2010.12.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Accepted: 12/23/2010] [Indexed: 02/04/2023]
Affiliation(s)
- Alexandre Garin
- Merck Serono S.A., 9 Chemin des Mines, 1202 Geneva, Switzerland
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Kraneveld AD, Braber S, Overbeek S, de Kruijf P, Koelink P, Smit MJ. Chemokine Receptors in Inflammatory Diseases. METHODS AND PRINCIPLES IN MEDICINAL CHEMISTRY 2011. [DOI: 10.1002/9783527631995.ch6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Liehn EA, Piccinini AM, Koenen RR, Soehnlein O, Adage T, Fatu R, Curaj A, Popescu A, Zernecke A, Kungl AJ, Weber C. A new monocyte chemotactic protein-1/chemokine CC motif ligand-2 competitor limiting neointima formation and myocardial ischemia/reperfusion injury in mice. J Am Coll Cardiol 2011; 56:1847-57. [PMID: 21087715 DOI: 10.1016/j.jacc.2010.04.066] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Revised: 04/13/2010] [Accepted: 04/16/2010] [Indexed: 12/19/2022]
Abstract
OBJECTIVES A nonagonist monocyte chemotactic protein-1 (MCP-1/CCL2) mutant (PA508) with increased affinity for glycosaminoglycans and thus competing with CCL2 was evaluated as a candidate for preventing neointima formation or myocardial ischemia/reperfusion injury. BACKGROUND Myocardial infarction (MI) remains a major cause of death worldwide despite improved interventional and therapeutic options. Therefore, the discovery of drugs that limit restenosis after intervention and post-MI damage remains an important challenge. METHODS The function of PA508 was assessed in functional assays in vitro and in mouse models of wire-induced neointima formation and experimental MI. RESULTS PA508 was functionally inactive in CC chemokine receptor 2 (CCR2) binding and calcium influx but inhibited monocyte chemotaxis or transendothelial migration toward CCL2, suggesting that it interferes with CCL2 presentation. In wild-type but not CCR2-deficient mice, PA508 reduced inflammatory leukocyte recruitment without affecting differential leukocyte counts, CCL2 levels, organ function, or morphology, indicating that it specifically attenuates the CCL2-CCR2 axis. Compared with vehicle, daily intraperitoneal injection of PA508 significantly (p < 0.05, n = 5) reduced neointimal plaque area and mononuclear cell infiltration in carotid arteries of hyperlipidemic apolipoprotein E-deficient mice while increasing smooth muscle cell content. In C57Bl/6J mice that underwent myocardial ischemia/reperfusion, treatment with PA508 significantly reduced infarction size, monocyte infiltration, and collagen and myofibroblast content in the infarction area and preserved heart function compared with vehicle (p < 0.05, n = 4 to 8). CONCLUSIONS Here we demonstrate that administration of a rationally designed CCL2 competitor reduced inflammatory monocyte recruitment, limited neointimal hyperplasia, and attenuated myocardial ischemia/reperfusion injury in mice and could therefore be envisioned as a combined therapeutic approach for restenosis and MI.
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Affiliation(s)
- Elisa A Liehn
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany
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Chemokine oligomerization and interactions with receptors and glycosaminoglycans: the role of structural dynamics in function. Exp Cell Res 2011; 317:590-601. [PMID: 21223963 DOI: 10.1016/j.yexcr.2011.01.004] [Citation(s) in RCA: 132] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Accepted: 01/03/2011] [Indexed: 01/14/2023]
Abstract
The first chemokine structure, that of IL-8/CXCL8, was determined in 1990. Since then, many chemokine structures have emerged. To the initial disappointment of structural biologists, the tertiary structures of these small proteins were found to be highly conserved. However, they have since proven to be much more interesting and diverse than originally expected. Somewhat like lego blocks, many chemokines oligomerize and there is significant diversity in their oligomeric forms and propensity to oligomerize. Chemokines not only interact with receptors where different oligomeric forms can induce different signaling responses, they also interact with glycosaminoglycans which can stabilize oligomers and other structures that would not otherwise form in solution. Although chemokine monomers and dimers yielded quickly to structure determination, structural information about larger chemokine oligomers, chemokines receptors, and complexes of chemokines with glycosaminoglycans and receptors has been more difficult to obtain, but recent breakthroughs suggest that this information will be forthcoming, especially with receptor structures. Equally important and challenging, will be efforts to correlate the structural information with function.
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Tung D, Cheung PH, Kaur P, Foreman O, Kavirayani A, Hain HS, Saha S. Anti-Inflammatory and Immunomodulatory Effects of Bortezomib in Various in vivo Models. Pharmacology 2011; 88:100-13. [DOI: 10.1159/000330067] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Accepted: 05/19/2011] [Indexed: 11/19/2022]
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Polymerization of MIP-1 chemokine (CCL3 and CCL4) and clearance of MIP-1 by insulin-degrading enzyme. EMBO J 2010; 29:3952-66. [PMID: 20959807 DOI: 10.1038/emboj.2010.256] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Accepted: 09/23/2010] [Indexed: 02/02/2023] Open
Abstract
Macrophage inflammatory protein-1 (MIP-1), MIP-1α (CCL3) and MIP-1β (CCL4) are chemokines crucial for immune responses towards infection and inflammation. Both MIP-1α and MIP-1β form high-molecular-weight aggregates. Our crystal structures reveal that MIP-1 aggregation is a polymerization process and human MIP-1α and MIP-1β form rod-shaped, double-helical polymers. Biophysical analyses and mathematical modelling show that MIP-1 reversibly forms a polydisperse distribution of rod-shaped polymers in solution. Polymerization buries receptor-binding sites of MIP-1α, thus depolymerization mutations enhance MIP-1α to arrest monocytes onto activated human endothelium. However, same depolymerization mutations render MIP-1α ineffective in mouse peritoneal cell recruitment. Mathematical modelling reveals that, for a long-range chemotaxis of MIP-1, polymerization could protect MIP-1 from proteases that selectively degrade monomeric MIP-1. Insulin-degrading enzyme (IDE) is identified as such a protease and decreased expression of IDE leads to elevated MIP-1 levels in microglial cells. Our structural and proteomic studies offer a molecular basis for selective degradation of MIP-1. The regulated MIP-1 polymerization and selective inactivation of MIP-1 monomers by IDE could aid in controlling the MIP-1 chemotactic gradient for immune surveillance.
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Krasnikova TL, Nikitin PI, Ksenevich TI, Gorshkov BG, Orlov AV, Sidorova MV, Azmuko AA, Arefieva TI, Mamochkina EN, Efremov EE, Bespalova ZD. Effect of the C-terminal domain peptide fragment (65-76) of monocytic chemotactic protein-1 (MCP-1) on the interaction between MCP-1 and heparin. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2010; 433:289-92. [PMID: 20711880 DOI: 10.1134/s0012496610040150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Indexed: 11/23/2022]
Affiliation(s)
- T L Krasnikova
- Russian Cardiological Research and Production Complex, Ministry of Health and Social Development of the Russian Federation, Moscow, Russia
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Teixeira MM, Vilela MC, Soriani FM, Rodrigues DH, Teixeira AL. Using intravital microscopy to study the role of chemokines during infection and inflammation in the central nervous system. J Neuroimmunol 2010; 224:62-5. [DOI: 10.1016/j.jneuroim.2010.05.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 05/04/2010] [Indexed: 12/14/2022]
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Severin IC, Gaudry JP, Johnson Z, Kungl A, Jansma A, Gesslbauer B, Mulloy B, Power C, Proudfoot AEI, Handel T. Characterization of the chemokine CXCL11-heparin interaction suggests two different affinities for glycosaminoglycans. J Biol Chem 2010; 285:17713-24. [PMID: 20363748 DOI: 10.1074/jbc.m109.082552] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Chemokines orchestrate the migration of leukocytes in the context of homeostasis and inflammation. In addition to interactions of chemokines with receptors on migrating cells, these processes require interactions of chemokines with glycosaminoglycans (GAGs) for cell surface localization. Most chemokines are basic proteins with Arg/Lys/His residue clusters functioning as recognition epitopes for GAGs. In this study we characterized the GAG-binding epitopes of the chemokine I-TAC/CXCL11. Four separate clusters of basic residues were mutated to alanine and tested for their ability to bind to GAGs in vitro and to activate the receptor, CXCR3. Mutation of a set of basic residues in the C-terminal helix (the 50s cluster, (57)KSKQAR(62)) along with Lys(17), significantly impaired heparin binding in vitro, identifying these residues as components of the dominant epitope. However, this GAG mutant retained nearly wild type receptor binding affinity, and its ability to induce cell migration in vitro was only mildly perturbed. Nevertheless, the mutant was unable to induce cell migration in vivo, establishing a requirement of CXCL11 for GAG binding for in vivo function. These studies also led to some interesting findings. First, CXCL11 exhibits conformational heterogeneity, as evidenced by the doubling of peaks in its HSQC spectra. Second, it exhibits more than one affinity state for both heparin and CXCR3, which may be related to its structural plasticity. Finally, although the binding affinities of chemokines for GAGs are typically weaker than interactions with receptors, the high affinity GAG binding state of CXCL11 is comparable with typical receptor binding affinities, suggesting some unique properties of this chemokine.
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Affiliation(s)
- India C Severin
- Merck Serono Geneva Research Centre, 9 Chemin des Mines, 1202 Geneva, Switzerland
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Galzi JL, Hachet-Haas M, Bonnet D, Daubeuf F, Lecat S, Hibert M, Haiech J, Frossard N. Neutralizing endogenous chemokines with small molecules. Principles and potential therapeutic applications. Pharmacol Ther 2010; 126:39-55. [PMID: 20117133 PMCID: PMC7112609 DOI: 10.1016/j.pharmthera.2009.12.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Accepted: 12/24/2009] [Indexed: 02/08/2023]
Abstract
Regulation of cellular responses to external stimuli such as hormones, neurotransmitters, or cytokines is achieved through the control of all steps of the complex cascade starting with synthesis, going through maturation steps, release, distribution, degradation and/or uptake of the signalling molecule interacting with the target protein. One possible way of regulation, referred to as scavenging or neutralization of the ligand, has been increasingly studied, especially for small protein ligands. It shows innovative potential in chemical biology approaches as well as in disease treatment. Neutralization of protein ligands, as for example cytokines or chemokines can lead to the validation of signalling pathways under physiological or pathophysiological conditions, and in certain cases, to the development of therapeutic molecules now used in autoimmune diseases, chronic inflammation and cancer treatment. This review explores the field of ligand neutralization and tries to determine to what extent small chemical molecules could substitute for neutralizing antibodies in therapeutic approaches.
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Affiliation(s)
- Jean-Luc Galzi
- IREBS, FRE3211, Ecole Supérieure de Biotechnologie de Strasbourg, Boulevard Sébastien Brant, 67412 Illkirch, France.
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Shahrara S, Pickens SR, Mandelin AM, Karpus WJ, Huang Q, Kolls JK, Pope RM. IL-17-mediated monocyte migration occurs partially through CC chemokine ligand 2/monocyte chemoattractant protein-1 induction. THE JOURNAL OF IMMUNOLOGY 2010; 184:4479-87. [PMID: 20228199 DOI: 10.4049/jimmunol.0901942] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease that is mediated, in part, by proinflammatory factors produced by RA synovial tissue (ST) fibroblasts and macrophages, resulting in monocyte migration from the blood to the ST. To characterize the potential role of IL-17 in monocyte migration, RA synovial fibroblasts and macrophages were activated with IL-17 and examined for the expression of monocyte chemokines. The two potentially important monocyte chemoattractants identified were CCL20/MIP-3alpha and CCL2/MCP-1, which were significantly induced in RA synovial fibroblasts and macrophages. However, in vivo, only CCL2/MCP-1 was detectable following adenovirus IL-17 injection. We found that IL-17 induction of CCL2/MCP-1 was mediated by the PI3K, ERK, and JNK pathways in RA ST fibroblasts and by the PI3K and ERK pathways in macrophages. Further, we show that neutralization of CCL2/MCP-1 significantly reduced IL-17-mediated monocyte recruitment into the peritoneal cavity. We demonstrate that local expression of IL-17 in ankle joints was associated with significantly increased monocyte migration and CCL2/MCP-1 levels. Interestingly, we show that RA synovial fluids immunoneutralized for IL-17 and CCL2/MCP-1 have similar monocyte chemotaxis activity as those immunoneutralized for each factor alone. In short, CCL2/MCP-1 produced from cell types present in the RA joint, as well as in experimental arthritis, may be responsible, in part, for IL-17-induced monocyte migration; hence, these results suggest that CCL2/MCP-1 is a downstream target of IL-17 that may be important in RA.
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Affiliation(s)
- Shiva Shahrara
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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Jansma AL, Kirkpatrick JP, Hsu AR, Handel TM, Nietlispach D. NMR analysis of the structure, dynamics, and unique oligomerization properties of the chemokine CCL27. J Biol Chem 2010; 285:14424-37. [PMID: 20200157 DOI: 10.1074/jbc.m109.091108] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Chemokines have two essential interactions in vivo, with G protein-coupled receptors, which activate intracellular signaling pathways, and with glycosaminoglycans (GAGs), which are involved in cell surface localization and transport. Although it has been shown that chemokines bind and activate their respective G protein-coupled receptors as monomers, many chemokines oligomerize upon GAG binding, and the ability to oligomerize and bind GAGs is required for in vivo function. In this study, we investigated the structure, dynamics, and oligomerization behavior of cutaneous T-cell-attracting chemokine (CTACK, also known as CCL27) by NMR. (15)N relaxation and translational self-diffusion rates indicate that CCL27 oligomerizes, but in contrast to many other chemokines that form relatively discrete oligomers, CCL27 transitions between monomer, dimer, and tetramer species over a relatively narrow concentration range. A three-dimensional structure determination was pursued under conditions where CCL27 is primarily dimeric, revealing the standard motif for a chemokine monomer. Analysis of chemical shift perturbations of (1)H-(15)N HSQC spectra, relaxation-dispersion experiments, and filtered nuclear Overhauser effects suggest that CCL27 does not adopt a discrete CXC or CC dimer motif. Instead, CCL27 has uncommon oligomerization behavior, where several equilibria involving relatively low affinity interactions between different interfaces seem to be simultaneously at work. However, interaction with heparin avidly promotes oligomerization under conditions where CCL27 is monomeric by itself. We hypothesize that the plasticity in the oligomerization state may enable CCL27 to adopt different oligomeric structures, depending on the nature of the GAG binding partner, thereby providing a mechanism for increased diversity and specificity in GAG-binding and GAG-related functions.
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Affiliation(s)
- Ariane L Jansma
- Skaggs School of Pharmacy and Pharmaceutical Science, University of California, San Diego, La Jolla, CA 92093-0684, USA
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