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Chowdhury RN, Armato A, Culver E, Shteynman L, Kurien C, Cradin B, Margolin F, Nguyen T, Cardona C, Kabir N, Garruto RM, Lum JK, Wander K. Quantitative and qualitative analysis of stability for 16 serum immunoregulators over 50 freeze-thaw cycles. Am J Hum Biol 2024:e24087. [PMID: 38682460 DOI: 10.1002/ajhb.24087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 03/31/2024] [Accepted: 04/10/2024] [Indexed: 05/01/2024] Open
Abstract
OBJECTIVES To evaluate the reliability of data from the assay of bio-archived specimens, a 50-freeze-thaw-cycle (FTC) degradation study of fresh sera was conducted to test the stability of 16 immunoregulators. METHODS Twenty de-identified serum specimens were obtained from volunteers at United Health Services-Wilson Memorial Hospital. Specimens were stored at -20°C and underwent daily 1 h thawing and subsequent freezing for each FTC over 50 consecutive days. Immunoregulator concentrations were assessed via enzyme-linked immunosorbent assay (ELISA) in participant samples at 2 FTC (baseline), 25 FTC, and 50 FTC. Specific immunoregulators observed in the study were C-reactive protein (CRP), interleukin (IL)-1α, 4, 6, 8, 10, monocyte chemoattractant protein-1 (MCP-1, CCL2), monocyte chemoattractant protein-2 (MCP-2, CCL8), eotaxin-1, thymus-and-activation-regulated chemokine (TARC, CCL17), regulated on activation normal T-cell expressed and secreted (RANTES, CCL5), growth-regulated oncogene-alpha (GRO-α, CXCL1), small inducible cytokine A1 (I-309, CCL1), interferon-gamma (IFN-γ), interferon-gamma inducible protein-10 (IP-10, CXCL10), and tumor necrosis factor-alpha (TNF-α). RESULTS Quantitative stability of serum immunoregulators: Serum CRP, IL-8, IL-10, IFN-γ, IP-10, and eotaxin-1 levels appear to be statistically equivalent from baseline to 50 FTC (p ≤ .05). Retention of patterns in serum immunoregulators: patterns across FTC were retained for TARC (age) and CRP, IFN-γ, and MCP-2 (sex). CONCLUSIONS While the effect of multiple FTC on serum immunoregulator levels may not replicate prolonged freezer storage, the results of this study provide valuable information on the robustness of immunoregulators for research using bio-archived sera.
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Affiliation(s)
- R N Chowdhury
- Department of Anthropology, Binghamton University, Binghamton, New York, USA
- Department of Child and Family Studies, University of South Florida, Tampa, Florida, USA
| | - A Armato
- United Health Services Wilson Memorial Hospital, Johnson City, New York, USA
| | - E Culver
- Department of Biological Sciences, Binghamton University, Binghamton, New York, USA
| | - L Shteynman
- Department of Biological Sciences, Binghamton University, Binghamton, New York, USA
- Renaissance School of Medicine at Stony Brook University, Stony Brook, New York, USA
| | - C Kurien
- Department of Integrative Neuroscience, Binghamton University, Binghamton, New York, USA
- College of Osteopathic Medicine, New York Institute of Technology, Long Island, New York, USA
| | - B Cradin
- Department of Integrative Neuroscience, Binghamton University, Binghamton, New York, USA
| | - F Margolin
- Department of Integrative Neuroscience, Binghamton University, Binghamton, New York, USA
| | - T Nguyen
- Department of Integrative Neuroscience, Binghamton University, Binghamton, New York, USA
| | - C Cardona
- Department of Integrative Neuroscience, Binghamton University, Binghamton, New York, USA
| | - N Kabir
- Department of Biological Sciences, Binghamton University, Binghamton, New York, USA
- Lake Erie College of Osteopathic Medicine, Elmira, New York, USA
| | - R M Garruto
- Department of Anthropology, Binghamton University, Binghamton, New York, USA
- Department of Biological Sciences, Binghamton University, Binghamton, New York, USA
| | - J K Lum
- Department of Anthropology, Binghamton University, Binghamton, New York, USA
- Department of Biological Sciences, Binghamton University, Binghamton, New York, USA
| | - K Wander
- Department of Anthropology, Binghamton University, Binghamton, New York, USA
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2
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Autoantibodies against chemokines post-SARS-CoV-2 infection correlate with disease course. Nat Immunol 2023; 24:604-611. [PMID: 36879067 PMCID: PMC10063443 DOI: 10.1038/s41590-023-01445-w] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 01/27/2023] [Indexed: 03/08/2023]
Abstract
Infection with severe acute respiratory syndrome coronavirus 2 associates with diverse symptoms, which can persist for months. While antiviral antibodies are protective, those targeting interferons and other immune factors are associated with adverse coronavirus disease 2019 (COVID-19) outcomes. Here we discovered that antibodies against specific chemokines were omnipresent post-COVID-19, were associated with favorable disease outcome and negatively correlated with the development of long COVID at 1 yr post-infection. Chemokine antibodies were also present in HIV-1 infection and autoimmune disorders, but they targeted different chemokines compared with COVID-19. Monoclonal antibodies derived from COVID-19 convalescents that bound to the chemokine N-loop impaired cell migration. Given the role of chemokines in orchestrating immune cell trafficking, naturally arising chemokine antibodies may modulate the inflammatory response and thus bear therapeutic potential.
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3
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Muri J, Cecchinato V, Cavalli A, Shanbhag AA, Matkovic M, Biggiogero M, Maida PA, Moritz J, Toscano C, Ghovehoud E, Furlan R, Barbic F, Voza A, Nadai GD, Cervia C, Zurbuchen Y, Taeschler P, Murray LA, Danelon-Sargenti G, Moro S, Gong T, Piffaretti P, Bianchini F, Crivelli V, Podešvová L, Pedotti M, Jarrossay D, Sgrignani J, Thelen S, Uhr M, Bernasconi E, Rauch A, Manzo A, Ciurea A, Rocchi MBL, Varani L, Moser B, Bottazzi B, Thelen M, Fallon BA, Boyman O, Mantovani A, Garzoni C, Franzetti-Pellanda A, Uguccioni M, Robbiani DF. Anti-chemokine antibodies after SARS-CoV-2 infection correlate with favorable disease course. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2022:2022.05.23.493121. [PMID: 35664993 PMCID: PMC9164443 DOI: 10.1101/2022.05.23.493121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Infection by SARS-CoV-2 leads to diverse symptoms, which can persist for months. While antiviral antibodies are protective, those targeting interferons and other immune factors are associated with adverse COVID-19 outcomes. Instead, we discovered that antibodies against specific chemokines are omnipresent after COVID-19, associated with favorable disease, and predictive of lack of long COVID symptoms at one year post infection. Anti-chemokine antibodies are present also in HIV-1 infection and autoimmune disorders, but they target different chemokines than those in COVID-19. Monoclonal antibodies derived from COVID- 19 convalescents that bind to the chemokine N-loop impair cell migration. Given the role of chemokines in orchestrating immune cell trafficking, naturally arising anti-chemokine antibodies associated with favorable COVID-19 may be beneficial by modulating the inflammatory response and thus bear therapeutic potential. One-Sentence Summary Naturally arising anti-chemokine antibodies associate with favorable COVID-19 and predict lack of long COVID.
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Affiliation(s)
- Jonathan Muri
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Valentina Cecchinato
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Andrea Cavalli
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland.,Swiss Institute of Bioinformatics; Lausanne, Switzerland
| | - Akanksha A Shanbhag
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Milos Matkovic
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Maira Biggiogero
- Clinical Research Unit, Clinica Luganese Moncucco; Lugano, Switzerland
| | - Pier Andrea Maida
- Clinical Research Unit, Clinica Luganese Moncucco; Lugano, Switzerland
| | - Jacques Moritz
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Chiara Toscano
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Elaheh Ghovehoud
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Raffaello Furlan
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy.,Internal Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Milan, Italy
| | - Franca Barbic
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy.,Internal Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Milan, Italy
| | - Antonio Voza
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy.,Department of Emergency, IRCCS Humanitas Research Hospital, 20089 Rozzano, Milan, Italy
| | - Guendalina De Nadai
- Emergency Medicine Residency School, Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4 - 20090 Pieve Emanuele, Milan, Italy
| | - Carlo Cervia
- Department of Immunology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Yves Zurbuchen
- Department of Immunology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Patrick Taeschler
- Department of Immunology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Lilly A Murray
- Lyme & Tick-Borne Diseases Research Center at Columbia University Irving Medical Center, New York, NY, USA
| | | | - Simone Moro
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Tao Gong
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Pietro Piffaretti
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Filippo Bianchini
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Virginia Crivelli
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Lucie Podešvová
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Mattia Pedotti
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - David Jarrossay
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Jacopo Sgrignani
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Sylvia Thelen
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | | | - Enos Bernasconi
- Regional Hospital Lugano, Ente Ospedaliero Cantonale; Lugano, Switzerland.,Università della Svizzera italiana; Lugano, Switzerland
| | - Andri Rauch
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern; Bern, Switzerland
| | - Antonio Manzo
- Rheumatology and Translational Immunology Research Laboratories (LaRIT), Division of Rheumatology, IRCCS Policlinico San Matteo Foundation, University of Pavia; Pavia, Italy
| | - Adrian Ciurea
- Department of Rheumatology, Zurich University Hospital, University of Zurich; Zurich, Switzerland
| | - Marco B L Rocchi
- Department of Biomolecular Sciences, Biostatistics Unit, University of Urbino; Urbino, Italy
| | - Luca Varani
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Bernhard Moser
- Division of Infection & Immunity, Henry Wellcome Building, Cardiff University School of Medicine; Cardiff, United Kingdom
| | - Barbara Bottazzi
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Milan, Italy
| | - Marcus Thelen
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
| | - Brian A Fallon
- Lyme & Tick-Borne Diseases Research Center at Columbia University Irving Medical Center, New York, NY, USA.,Lyme Research Program at the New York State Psychiatric Institute, New York, NY, USA
| | - Onur Boyman
- Department of Immunology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.,Faculty of Medicine and Faculty of Science, University of Zurich, Zurich, Switzerland
| | - Alberto Mantovani
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy.,IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Milan, Italy.,The William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London, UK
| | - Christian Garzoni
- Internal Medicine and Infectious Diseases, Clinica Luganese Moncucco; Lugano, Switzerland
| | | | - Mariagrazia Uguccioni
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland.,Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy
| | - Davide F Robbiani
- Institute for Research in Biomedicine, Università della Svizzera italiana; Bellinzona, Switzerland
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4
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Igarashi K, Hori T, Yamamoto M, Sohma H, Suzuki N, Tsutsumi H, Kawasaki Y, Kokai Y. CCL8 deficiency in the host abrogates early mortality of acute graft-versus-host disease in mice with dysregulated IL-6 expression. Exp Hematol 2022; 106:47-57. [PMID: 34808257 DOI: 10.1016/j.exphem.2021.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/11/2021] [Accepted: 11/16/2021] [Indexed: 11/30/2022]
Abstract
Although allogeneic hematopoietic stem cell transplantation (HSCT) is a curative treatment for diverse malignant and nonmalignant diseases, acute graft-versus-host disease (aGVHD) is strongly linked to mortality caused by HSCT. We previously reported that CC chemokine ligand 8 (CCL8) is closely correlated to aGVHD mortality in both humans and mice. To study the role of CCL8 in aGVHD, CCL8 knockout (CCL8-/-) mice were transplanted with fully allogeneic marrow grafts. These mice exhibited a significant reduction in mortality (90.0% vs. 23.4% survival for CCL8-/- vs. wild-type recipients at day 28, p < 0.0001). As a result, apparent prolonged median survival from 9 days in wild-type mice to 45 days in CCL8-/- mice was observed. Acute GVHD pathology and liver dysfunction in CCL8-/- mice were significantly attenuated compared with those in wild-type mice. In association with the reduced mortality, a surge of plasma interleukin (IL)-6 was observed in CCL8-/- recipients with allogeneic marrow, which was significantly increased compared with wild-type mice that received allografts. Donor T-cell expansion and plasma levels of interferon-γ and TNF-α during aGVHD were similar in both types of mice. Collectively, these findings indicate that CCL8 plays a major role in aGVHD pathogenesis with possible involvement of an IL-6 signaling cascade.
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Affiliation(s)
- Keita Igarashi
- Department of Biomedical Engineering, Research Institute of Frontier Medicine; Department of Pediatrics, Sapporo Medical University School of Medicine.
| | - Tsukasa Hori
- Department of Pediatrics, Sapporo Medical University School of Medicine
| | - Masaki Yamamoto
- Department of Pediatrics, Sapporo Medical University School of Medicine
| | - Hitoshi Sohma
- Department of Educational Development, Center for Medical Education, Sapporo Medical University, Sapporo, Japan
| | | | - Hiroyuki Tsutsumi
- Department of Pediatrics, Sapporo Medical University School of Medicine
| | - Yukihiko Kawasaki
- Department of Pediatrics, Sapporo Medical University School of Medicine
| | - Yasuo Kokai
- Department of Biomedical Engineering, Research Institute of Frontier Medicine
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5
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Nouailles G, Wyler E, Pennitz P, Postmus D, Vladimirova D, Kazmierski J, Pott F, Dietert K, Muelleder M, Farztdinov V, Obermayer B, Wienhold SM, Andreotti S, Hoefler T, Sawitzki B, Drosten C, Sander LE, Suttorp N, Ralser M, Beule D, Gruber AD, Goffinet C, Landthaler M, Trimpert J, Witzenrath M. Temporal omics analysis in Syrian hamsters unravel cellular effector responses to moderate COVID-19. Nat Commun 2021; 12:4869. [PMID: 34381043 PMCID: PMC8357947 DOI: 10.1038/s41467-021-25030-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 07/13/2021] [Indexed: 01/08/2023] Open
Abstract
In COVID-19, immune responses are key in determining disease severity. However, cellular mechanisms at the onset of inflammatory lung injury in SARS-CoV-2 infection, particularly involving endothelial cells, remain ill-defined. Using Syrian hamsters as a model for moderate COVID-19, we conduct a detailed longitudinal analysis of systemic and pulmonary cellular responses, and corroborate it with datasets from COVID-19 patients. Monocyte-derived macrophages in lungs exert the earliest and strongest transcriptional response to infection, including induction of pro-inflammatory genes, while epithelial cells show weak alterations. Without evidence for productive infection, endothelial cells react, depending on cell subtypes, by strong and early expression of anti-viral, pro-inflammatory, and T cell recruiting genes. Recruitment of cytotoxic T cells as well as emergence of IgM antibodies precede viral clearance at day 5 post infection. Investigating SARS-CoV-2 infected Syrian hamsters thus identifies cell type-specific effector functions, providing detailed insights into pathomechanisms of COVID-19 and informing therapeutic strategies.
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Affiliation(s)
- Geraldine Nouailles
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Division of Pulmonary Inflammation, Berlin, Germany.
- Berlin Institute of Health (BIH), Berlin, Germany.
| | - Emanuel Wyler
- Berlin Institute for Medical Systems Biology (BIMSB), Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany.
| | - Peter Pennitz
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Division of Pulmonary Inflammation, Berlin, Germany
| | - Dylan Postmus
- Berlin Institute of Health (BIH), Berlin, Germany
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Virology, Berlin, Germany
| | | | - Julia Kazmierski
- Berlin Institute of Health (BIH), Berlin, Germany
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Virology, Berlin, Germany
| | - Fabian Pott
- Berlin Institute of Health (BIH), Berlin, Germany
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Virology, Berlin, Germany
| | - Kristina Dietert
- Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
- Veterinary Centre for Resistance Research, Freie Universität Berlin, Berlin, Germany
| | - Michael Muelleder
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Core Facility - High-Throughput Mass Spectrometry, Berlin, Germany
| | - Vadim Farztdinov
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Core Facility - High-Throughput Mass Spectrometry, Berlin, Germany
| | - Benedikt Obermayer
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Core Unit Bioinformatics, Berlin, Germany
| | - Sandra-Maria Wienhold
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Division of Pulmonary Inflammation, Berlin, Germany
| | - Sandro Andreotti
- Bioinformatics Solution Center, Freie Universität Berlin, Berlin, Germany
| | - Thomas Hoefler
- Institute of Virology, Freie Universität Berlin, Berlin, Germany
| | - Birgit Sawitzki
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Medical Immunology, Berlin, Germany
| | - Christian Drosten
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Virology, Berlin, Germany
| | - Leif E Sander
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Berlin, Germany
| | - Norbert Suttorp
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Berlin, Germany
| | - Markus Ralser
- The Francis Crick Institute, Molecular Biology of Metabolism Laboratory, London, UK
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Biochemistry, Berlin, Germany
| | - Dieter Beule
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Core Unit Bioinformatics, Berlin, Germany
| | - Achim D Gruber
- Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Christine Goffinet
- Berlin Institute of Health (BIH), Berlin, Germany
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Virology, Berlin, Germany
| | - Markus Landthaler
- Berlin Institute for Medical Systems Biology (BIMSB), Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- IRI Life Sciences, Institute for Biology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Jakob Trimpert
- Institute of Virology, Freie Universität Berlin, Berlin, Germany.
| | - Martin Witzenrath
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Division of Pulmonary Inflammation, Berlin, Germany.
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Infectious Diseases and Respiratory Medicine, Berlin, Germany.
- German Center for Lung Research (DZL), Berlin, Germany.
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6
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Recruitment and Expansion of Tregs Cells in the Tumor Environment-How to Target Them? Cancers (Basel) 2021; 13:cancers13081850. [PMID: 33924428 PMCID: PMC8069615 DOI: 10.3390/cancers13081850] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/04/2021] [Accepted: 04/08/2021] [Indexed: 12/22/2022] Open
Abstract
Simple Summary The immune response against cancer is generated by effector T cells, among them cytotoxic CD8+ T cells that destroy cancer cells and helper CD4+ T cells that mediate and support the immune response. This antitumor function of T cells is tightly regulated by a particular subset of CD4+ T cells, named regulatory T cells (Tregs), through different mechanisms. Even if the complete inhibition of Tregs would be extremely harmful due to their tolerogenic role in impeding autoimmune diseases in the periphery, the targeted blockade of their accumulation at tumor sites or their targeted depletion represent a major therapeutic challenge. This review focuses on the mechanisms favoring Treg recruitment, expansion and stabilization in the tumor microenvironment and the therapeutic strategies developed to block these mechanisms. Abstract Regulatory T cells (Tregs) are present in a large majority of solid tumors and are mainly associated with a poor prognosis, as their major function is to inhibit the antitumor immune response contributing to immunosuppression. In this review, we will investigate the mechanisms involved in the recruitment, amplification and stability of Tregs in the tumor microenvironment (TME). We will also review the strategies currently developed to inhibit Tregs’ deleterious impact in the TME by either inhibiting their recruitment, blocking their expansion, favoring their plastic transformation into other CD4+ T-cell subsets, blocking their suppressive function or depleting them specifically in the TME to avoid severe deleterious effects associated with Treg neutralization/depletion in the periphery and normal tissues.
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7
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Possible involvement of crosstalk between endometrial cells and mast cells in the development of endometriosis via CCL8/CCR1. Biomed Pharmacother 2020; 129:110476. [PMID: 32768961 DOI: 10.1016/j.biopha.2020.110476] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND The density and the activity of mast cells are associated with endometriosis. However, the role of mast cells on the pathogenesis of endometriosis remains unclear. Our study aims to investigate whether endometrial cells interact with mast cells and the involvement of their crosstalk in the development of endometriosis. METHODS The transwell assay was applied to investigate the effect of mast cells on the migratory ability of human primary endometrial cells. Mast cells were cocultured with endometrial epithelial and stromal cells respectively and total RNAs were isolated and subjected to mRNA sequencing. Next, the transwell assay, CCK-8, and tube formation were applied to study the role of CCL8 on the endometrial and endothelial cells in vitro. The mouse model was also established to confirm the role of CCL8 in the development and angiogenesis of endometriosis. RESULTS CCL8 was up-regulated in mast cells when cocultured with endometrial cells. CCL8 was highly expressed in the ectopic endometrium and the serum of patients with endometriosis. CCL8 promoted the migratory ability of endometrial epithelial and stromal cells and increased the proliferation, migration, and tube formation of endothelial cells. CCR1, the receptor of CCL8, was over-expressed in the ectopic endometrium and colocalized with blood vessels in ovarian endometriomas. The inhibition of CCR1 suppressed the development and angiogenesis of endometriosis in vivo. CONCLUSION The crosstalk between endometrial cells and mast cells in the development of endometriosis via CCL8/CCR1 was demonstrated, thereby providing a new treatment strategy for endometriosis.
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8
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The CCL5/CCR5 Axis in Cancer Progression. Cancers (Basel) 2020; 12:cancers12071765. [PMID: 32630699 PMCID: PMC7407580 DOI: 10.3390/cancers12071765] [Citation(s) in RCA: 188] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/25/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023] Open
Abstract
Tumor cells can “hijack” chemokine networks to support tumor progression. In this context, the C-C chemokine ligand 5/C-C chemokine receptor type 5 (CCL5/CCR5) axis is gaining increasing attention, since abnormal expression and activity of CCL5 and its receptor CCR5 have been found in hematological malignancies and solid tumors. Numerous preclinical in vitro and in vivo studies have shown a key role of the CCL5/CCR5 axis in cancer, and thus provided the rationale for clinical trials using the repurposed drug maraviroc, a CCR5 antagonist used to treat HIV/AIDS. This review summarizes current knowledge on the role of the CCL5/CCR5 axis in cancer. First, it describes the involvement of the CCL5/CCR5 axis in cancer progression, including autocrine and paracrine tumor growth, ECM (extracellular matrix) remodeling and migration, cancer stem cell expansion, DNA damage repair, metabolic reprogramming, and angiogenesis. Then, it focuses on individual hematological and solid tumors in which CCL5 and CCR5 have been studied preclinically. Finally, it discusses clinical trials of strategies to counteract the CCL5/CCR5 axis in different cancers using maraviroc or therapeutic monoclonal antibodies.
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9
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Darlot B, Eaton JRO, Geis-Asteggiante L, Yakala GK, Karuppanan K, Davies G, Robinson CV, Kawamura A, Bhattacharya S. Engineered anti-inflammatory peptides inspired by mapping an evasin-chemokine interaction. J Biol Chem 2020; 295:10926-10939. [PMID: 32471866 PMCID: PMC7415964 DOI: 10.1074/jbc.ra120.014103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/23/2020] [Indexed: 12/27/2022] Open
Abstract
Chemokines mediate leukocyte migration and homeostasis and are key targets in inflammatory diseases including atherosclerosis, cytokine storm, and chronic autoimmune disease. Chemokine redundancy and ensuing network robustness has frustrated therapeutic development. Salivary evasins from ticks bind multiple chemokines to overcome redundancy and are effective in several preclinical disease models. Their clinical development has not progressed because of concerns regarding potential immunogenicity, parenteral delivery, and cost. Peptides mimicking protein activity can overcome the perceived limitations of therapeutic proteins. Here we show that peptides possessing multiple chemokine-binding and anti-inflammatory activities can be developed from the chemokine-binding site of an evasin. We used hydrogen-deuterium exchange MS to map the binding interface of the evasin P672 that physically interacts with C-C motif chemokine ligand (CCL) 8 and synthesized a 16-mer peptide (BK1.1) based on this interface region in evasin P672. Fluorescent polarization and native MS approaches showed that BK1.1 binds CCL8, CCL7, and CCL18 and disrupts CCL8 homodimerization. We show that a BK1.1 derivative, BK1.3, has substantially improved ability to disrupt P672 binding to CCL8, CCL2, and CCL3 in an AlphaScreen assay. Using isothermal titration calorimetry, we show that BK1.3 directly binds CCL8. BK1.3 also has substantially improved ability to inhibit CCL8, CCL7, CCL2, and CCL3 chemotactic function in vitro We show that local as well as systemic administration of BK1.3 potently blocks inflammation in vivo Identification and characterization of the chemokine-binding interface of evasins could thus inspire the development of novel anti-inflammatory peptides that therapeutically target the chemokine network in inflammatory diseases.
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Affiliation(s)
- Benoit Darlot
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
| | - James R O Eaton
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom.,Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Lucia Geis-Asteggiante
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
| | - Gopala K Yakala
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Kalimuthu Karuppanan
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Graham Davies
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Carol V Robinson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom
| | - Akane Kawamura
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, United Kingdom .,Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Shoumo Bhattacharya
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
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10
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Dai S, Zhang J, Xu Z. Silencing CCL8 inhibited the proliferation and migration of PDGF-BB-stimulated human aortic smooth muscle cells. Biosci Biotechnol Biochem 2020; 84:1585-1593. [PMID: 32432500 DOI: 10.1080/09168451.2020.1762160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
C-C motif Chemokine ligand 8 (CCL8) has been found in diseases' pathogenesis. But its molecular mechanism in atherosclerosis (AS) remains to be elucidated. Human aortic smooth muscle cells (HASMCs) were stimulated by PDGF-BB to establish cell model. α-SMA in PDGF-BB-stimulated HASMCs was measured by immunofluorescence staining. Relative gene expressions in PDGF-BB-stimulated HASMCs were detected by quantitative real-time polymerase chain reaction and western blot. HASMCs proliferation, migration, and cell cycle were assessed by cell counting kit-8, wound-healing assay, and flow cytometry. HASMCs viability was increased after PDGF-BB stimulation, with α-SMA downregulation yet CCL8 upregulation. Silencing CCL8 inhibited PDGF-BB-stimulated HASMCs proliferation and migration, and increased cells percentage in G1 phases but decreased those in S phase. Also, silencing CCL8 decreased OPN and cyclinD1 expressions and AKT and ERK1/2 phosphorylation while increased those of α-SMA and Sm22α. However, upregulating CCL8 led to opposite effects, suggesting CCL8 could be an atherosclerosis therapeutic target.
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Affiliation(s)
- Shipeng Dai
- Department of Cardiology II, Cangzhou Teaching Hospital of Tianjin Medical University , Tianjin, China
| | - Jiangang Zhang
- Department of Cardiology II, Cangzhou Teaching Hospital of Tianjin Medical University , Tianjin, China
| | - Zesheng Xu
- Department of Cardiology II, Cangzhou Teaching Hospital of Tianjin Medical University , Tianjin, China
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11
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Nakayoshi T, Kato K, Kurimoto E, Oda A. Computational Studies on the Mechanisms of Nonenzymatic Intramolecular Cyclization of the Glutamine Residues Located at N-Termini Catalyzed by Inorganic Phosphate Species. ACS OMEGA 2020; 5:9162-9170. [PMID: 32363268 PMCID: PMC7191561 DOI: 10.1021/acsomega.9b04384] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/02/2020] [Indexed: 05/13/2023]
Abstract
Glutamine (Gln) residues located at N-termini undergo spontaneous intramolecular cyclization, causing the formation of pyroglutamic acid (pGlu) residues. pGlu residues have been detected at the N-termini in various peptides and proteins. The formation of pGlu residues during the fermentation and purification processes of antibody drugs is one of the concerns in the design and formulation of these drugs and has been reported to proceed rapidly in a phosphate buffer. In this study, we have examined the phosphate-catalyzed mechanisms of the pGlu residue formation from N-terminal Gln residues via quantum chemical calculations using B3LYP density functional methods. Single-point energies were calculated using the second-order Møller-Plesset perturbation theory. We performed the calculations for the model compound in which an uncharged N-terminal Gln residue is capped with a methyl amino group on the C-terminal. The activation energy of the formation of pGlu residues was calculated as 83.8 kJ mol-1, which was lower than that of the typical nonenzymatic reaction of amino acid residues. In addition, the computational results indicate that the flexibility of the main and side chains in N-terminal Gln residues was necessary for the formation of pGlu residues to proceed. In the obtained pathway, inorganic phosphate species act as the catalyst by mediating the proton transfer.
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Affiliation(s)
- Tomoki Nakayoshi
- Graduate
School of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
- Institute
of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Koichi Kato
- Graduate
School of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
- Department
of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyama-ku, Nagoya, Aichi 463-8521, Japan
| | - Eiji Kurimoto
- Graduate
School of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Akifumi Oda
- Graduate
School of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
- Institute
of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
- Institute
for Protein Research, Osaka University, 3-2 Yamadaoka,
Suita, Osaka 565-0871, Japan
- . Phone: +81-52-832-1151
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12
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Zhang X, Chen L, Dang WQ, Cao MF, Xiao JF, Lv SQ, Jiang WJ, Yao XH, Lu HM, Miao JY, Wang Y, Yu SC, Ping YF, Liu XD, Cui YH, Zhang X, Bian XW. CCL8 secreted by tumor-associated macrophages promotes invasion and stemness of glioblastoma cells via ERK1/2 signaling. J Transl Med 2020; 100:619-629. [PMID: 31748682 DOI: 10.1038/s41374-019-0345-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/27/2019] [Accepted: 10/15/2019] [Indexed: 12/13/2022] Open
Abstract
Tumor-associated macrophages (TAMs) constitute a large population of glioblastoma and facilitate tumor growth and invasion of tumor cells, but the underlying mechanism remains undefined. In this study, we demonstrate that chemokine (C-C motif) ligand 8 (CCL8) is highly expressed by TAMs and contributes to pseudopodia formation by GBM cells. The presence of CCL8 in the glioma microenvironment promotes progression of tumor cells. Moreover, CCL8 induces invasion and stem-like traits of GBM cells, and CCR1 and CCR5 are the main receptors that mediate CCL8-induced biological behavior. Finally, CCL8 dramatically activates ERK1/2 phosphorylation in GBM cells, and blocking TAM-secreted CCL8 by neutralized antibody significantly decreases invasion of glioma cells. Taken together, our data reveal that CCL8 is a TAM-associated factor to mediate invasion and stemness of GBM, and targeting CCL8 may provide an insight strategy for GBM treatment.
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Affiliation(s)
- Xiang Zhang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Lu Chen
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Wei-Qi Dang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Mian-Fu Cao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Jing-Fang Xiao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Sheng-Qing Lv
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Wen-Jie Jiang
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Xiao-Hong Yao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Hui-Min Lu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Jing-Ya Miao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Yan Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Shi-Cang Yu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Yi-Fang Ping
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Xin-Dong Liu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - You-Hong Cui
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Xia Zhang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China. .,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China. .,Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
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13
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Chen XJ, Deng YR, Wang ZC, Wei WF, Zhou CF, Zhang YM, Yan RM, Liang LJ, Zhong M, Liang L, Wu S, Wang W. Hypoxia-induced ZEB1 promotes cervical cancer progression via CCL8-dependent tumour-associated macrophage recruitment. Cell Death Dis 2019; 10:508. [PMID: 31263103 PMCID: PMC6602971 DOI: 10.1038/s41419-019-1748-1] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/10/2019] [Accepted: 06/13/2019] [Indexed: 02/08/2023]
Abstract
The accumulation of tumour-associated macrophages (TAMs) in the hypoxic tumour microenvironment (TME) is associated with malignant progression in cancer. However, the mechanisms by which the hypoxic TME facilitates TAM infiltration are not fully understood. This study showed that high ZEB1 expression in hypoxic cervical cancer cell islets was positively correlated with CD163+ TAM accumulation. ZEB1 in hypoxic cancer cells promoted the migration of TAMs in vitro and altered the expression of multiple chemokines, especially CCL8. Mechanistically, hypoxia-induced ZEB1 activated the transcription of CCL8, which attracted macrophages via the CCR2-NF-κB pathway. Furthermore, ZEB1 and CCL8 were independent prognostic factors in cervical cancer patients based on The Cancer Genome Atlas (TCGA) data analysis. In conclusion, hypoxia-induced ZEB1 exerts unexpected functions in cancer progression by fostering a prometastatic environment through increased CCL8 secretion and TAM recruitment; thus, ZEB1 may serve as a candidate biomarker of tumour progression and provide a potential target for disrupting hypoxia-mediated TME remodelling.
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Affiliation(s)
- Xiao-Jing Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Yuan-Run Deng
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Southern Medical University, 510360, Guangzhou, China
| | - Zi-Ci Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Wen-Fei Wei
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Chen-Fei Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Yan-Mei Zhang
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Proteomic, 510515, Guangzhou, China
| | - Rui-Ming Yan
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
| | - Luo-Jiao Liang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
| | - Mei Zhong
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
| | - Li Liang
- Department of Pathology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
| | - Sha Wu
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Proteomic, 510515, Guangzhou, China.
- 1838 Guangzhou Avenue North, Baiyun District, 510515, Guangzhou, China.
| | - Wei Wang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China.
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China.
- 151 Yanjiang Road, Yuexiu District, 510120, Guangzhou, China.
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14
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Mou T, Xie F, Zhong P, Hua H, Lai L, Yang Q, Wang J. MiR-345-5p functions as a tumor suppressor in pancreatic cancer by directly targeting CCL8. Biomed Pharmacother 2019; 111:891-900. [PMID: 30841468 DOI: 10.1016/j.biopha.2018.12.121] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/29/2018] [Accepted: 12/30/2018] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Increasing evidence has demonstrated that microRNAs (miRNAs) are key regulators of human diseases and can serve as prognostic markers for several cancers, such as pancreatic ductal adenocarcinoma (PDAC). Previous studies have revealed various functions for miR-345-5p in several cancers. However, the role and potential mechanism of miR-345-5p in PDAC have not been resolved. METHODS Quantitative RT-PCR was performed to investigate the expression levels of miR-345-5p in pancreatic cancer tissues and cell lines, and the effect of miR-345-5p on the proliferation and invasiveness of pancreatic cancer was examined in Transwell assays with miR-345-5p overexpression. We used Western blot assay to explore the underlying mechanisms. Immunofluorescence staining was performed to examine changes in the cytoskeleton of PANC-1 cells in response to miR-345-5p. Luciferase assays were used to clarify the target and regulation mechanism of miR-345-5p. RESULTS miR-345-5p expression was downregulated in PDAC cells and tissues. Upregulated miR-345-5p expression inhibited the proliferation and metastasis of PDAC cells. We identified CCL8 as a direct target of miR-345-5p and found CCL8 expression was inversely correlated with miR-345-5p expression in PDAC samples. CCL8 could activate the NF-κB signaling pathway to promote the proliferation and invasiveness of PDAC cells. These results suggested that miR-345-5p inhibited PDAC progression by inactivating NF-κB signaling. CONCLUSIONS Here we demonstrated that miR-345-5p was a tumor-suppressive miRNA in pancreatic cancer progression by targeting CCL8. Our results suggest miR-345-5p may be a potential therapeutic biomarker for pancreatic cancer treatment.
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Affiliation(s)
- Tinggang Mou
- Department of Hepatic-Biliary-Pancreatic Surgery, the First people's Hospital of Neijiang, Neijiang, Sichuan, China
| | - Fei Xie
- Department of Hepatic-Biliary-Pancreatic Surgery, the First people's Hospital of Neijiang, Neijiang, Sichuan, China
| | - Pingyong Zhong
- Department of Hepatic-Biliary-Pancreatic Surgery, the First people's Hospital of Neijiang, Neijiang, Sichuan, China
| | - Hao Hua
- Department of Hepatic-Biliary-Pancreatic Surgery, the First people's Hospital of Neijiang, Neijiang, Sichuan, China
| | - Liang Lai
- Department of Hepatic-Biliary-Pancreatic Surgery, the First people's Hospital of Neijiang, Neijiang, Sichuan, China
| | - Qin Yang
- Department of Gastroenterology, the First people's Hospital of Neijiang, Neijiang, Sichuan, China
| | - Jie Wang
- Department of Hepatic-Biliary-Pancreatic Surgery, the First people's Hospital of Neijiang, Neijiang, Sichuan, China.
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15
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Ge B, Li J, Wei Z, Sun T, Song Y, Khan NU. Functional expression of CCL8 and its interaction with chemokine receptor CCR3. BMC Immunol 2017; 18:54. [PMID: 29281969 PMCID: PMC5745793 DOI: 10.1186/s12865-017-0237-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 12/14/2017] [Indexed: 01/23/2023] Open
Abstract
Background Chemokines and their cognate receptors play important role in the control of leukocyte chemotaxis, HIV entry and other inflammatory diseases. Developing an effcient method to investigate the functional expression of chemokines and its interactions with specific receptors will be helpful to asses the structural and functional characteristics as well as the design of new approach to therapeutic intervention. Results By making systematic optimization study of expression conditions, soluble and functional production of chemokine C-C motif ligand 8 (CCL8) in Escherichia coli (E. coli) has been achieved with approx. 1.5 mg protein/l culture. Quartz crystal microbalance (QCM) analysis exhibited that the purified CCL8 could bind with C-C chemokine receptor type 3 (CCR3) with dissociation equilibrium constant (KD) as 1.2 × 10−7 M in vitro. Obvious internalization of CCR3 in vivo could be detected in 1 h when exposed to 100 nM of CCL8. Compared with chemokine C-C motif ligand 11 (CCL11) and chemokine C-C motif ligand 24 (CCL24), a weaker chemotactic effect of CCR3 expressing cells was observed when induced by CCL8 with same concentration. Conclusion This study delivers a simple and applicable way to produce functional chemokines in E. coli. The results clearly confirms that CCL8 can interact with chemokine receptor CCR3, therefore, it is promising area to develop drugs for the treatment of related diseases. Electronic supplementary material The online version of this article (10.1186/s12865-017-0237-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Baosheng Ge
- Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China.
| | - Jiqiang Li
- Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China
| | - Zhijin Wei
- Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China
| | - Tingting Sun
- Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China
| | - Yanzhuo Song
- Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China
| | - Naseer Ullah Khan
- Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China
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16
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Proost P, Struyf S, Van Damme J, Fiten P, Ugarte-Berzal E, Opdenakker G. Chemokine isoforms and processing in inflammation and immunity. J Autoimmun 2017; 85:45-57. [PMID: 28684129 DOI: 10.1016/j.jaut.2017.06.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 06/21/2017] [Indexed: 12/16/2022]
Abstract
The first dimension of chemokine heterogeneity is reflected by their discovery and purification as natural proteins. Each of those chemokines attracted a specific inflammatory leukocyte type. With the introduction of genomic technologies, a second wave of chemokine heterogeneity was established by the discovery of putative chemokine-like sequences and by demonstrating chemotactic activity of the gene products in physiological leukocyte homing. In the postgenomic era, the third dimension of chemokine heterogeneity is the description of posttranslational modifications on most chemokines. Proteolysis of chemokines, for instance by dipeptidyl peptidase IV (DPP IV/CD26) and by matrix metalloproteinases (MMPs) is already well established as a biological control mechanism to activate, potentiate, dampen or abrogate chemokine activities. Other posttranslational modifications are less known. Theoretical N-linked and O-linked attachment sites for chemokine glycosylation were searched with bio-informatic tools and it was found that most chemokines are not glycosylated. These findings are corroborated with a low number of experimental studies demonstrating N- or O-glycosylation of natural chemokine ligands. Because attached oligosaccharides protect proteins against proteolytic degradation, their absence may explain the fast turnover of chemokines in the protease-rich environments of infection and inflammation. All chemokines interact with G protein-coupled receptors (GPCRs) and glycosaminoglycans (GAGs). Whether lectin-like GAG-binding induces cellular signaling is not clear, but these interactions are important for leukocyte migration and have already been exploited to reduce inflammation. In addition to selective proteolysis, citrullination and nitration/nitrosylation are being added as biologically relevant modifications contributing to functional chemokine heterogeneity. Resulting chemokine isoforms with reduced affinity for GPCRs reduce leukocyte migration in various models of inflammation. Here, these third dimension modifications are compared, with reflections on the biological and pathological contexts in which these posttranslational modifications take place and contribute to the repertoire of chemokine functions and with an emphasis on autoimmune diseases.
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Affiliation(s)
- Paul Proost
- Laboratory of Molecular Immunology, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven, University of Leuven, Herestraat 49, B-3000, Leuven, Belgium.
| | - Sofie Struyf
- Laboratory of Molecular Immunology, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven, University of Leuven, Herestraat 49, B-3000, Leuven, Belgium.
| | - Jo Van Damme
- Laboratory of Molecular Immunology, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven, University of Leuven, Herestraat 49, B-3000, Leuven, Belgium.
| | - Pierre Fiten
- Laboratory of Immunobiology, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven, University of Leuven, Herestraat 49, B-3000, Leuven, Belgium.
| | - Estefania Ugarte-Berzal
- Laboratory of Immunobiology, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven, University of Leuven, Herestraat 49, B-3000, Leuven, Belgium.
| | - Ghislain Opdenakker
- Laboratory of Immunobiology, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven, University of Leuven, Herestraat 49, B-3000, Leuven, Belgium.
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17
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Ming L, Peng RY, Zhang L, Zhang CL, Lv P, Wang ZQ, Cui J, Ren HJ. Invasion by Trichinella spiralis infective larvae affects the levels of inflammatory cytokines in intestinal epithelial cells in vitro. Exp Parasitol 2016; 170:220-226. [PMID: 27717772 DOI: 10.1016/j.exppara.2016.10.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 09/29/2016] [Accepted: 10/03/2016] [Indexed: 12/12/2022]
Abstract
As we all know, invasion of host intestinal epithelium is very important for T. spiralis to complete successfully their life cycle. However, the mechanisms that the intestinal infective larvae (IIL) invade and migrate in the intestinal epithailial cells (IECs) remain unclear until now. The related researches have been hindered since a readily operable in vitro normal model. In our earlier study, an in vitro normal IEC invasion model was established for the first time, and the abilities of the normal IECs to initiate mucosal inflammatory responses to invasion by the IIL in vitro were evaluated in this study. When the IIL were overlaid on the normal mouse IEC monolayers, they quickly within seconds invaded the monolayers and move within the IECs, leaving trails of damaged cells. Then the larvae were found to have started their molting at 12 h, and the complete cuticle was found at 24 h. The percentage of the first molt in the larvae was about 62.3%, and the percentage of the 2nd-4th molt was about 38.2% at 36 h. Real-time PCR showed that the mRNA levels of interleukin-1β (IL-1β), IL-8, epithelial neutrophil-activating peptide 78 (ENA-78), inducible nitric oxide synthase (iNOS), and monocyte chemotactic protein 2 (MCP-2) were elevated in the IECs after 7 h of infection after invasion by the IIL, and their levels were enhanced with the increase of larvae number. No changes in tumor necrosis factor-α (TNF-α) mRNA were observed after the IIL invasion. Secretion increases of IL-1β and IL-8 from the IEC monolayers invaded by T. spiralis were also detected by ELISA. Secretion increases of proinflammatory cytokines and inflammatory mediators in normal IECs can launch the acute inflammatory in response to the IIL invasion. This study would be helpful in further investigating the relationship between the host and T. spiralis, and the immune escape mechanisms of the niche established by T. spiralis.
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Affiliation(s)
- Liang Ming
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Key Clinical Laboratory of Henan Province, Zhengzhou 450052, China
| | - Ruo Yu Peng
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Key Clinical Laboratory of Henan Province, Zhengzhou 450052, China
| | - Lei Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Key Clinical Laboratory of Henan Province, Zhengzhou 450052, China
| | - Chun Li Zhang
- Department of General Surgery, The People's Hospital of Zhengzhou, Zhengzhou 450003, China
| | - Pin Lv
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Key Clinical Laboratory of Henan Province, Zhengzhou 450052, China
| | - Zhong Quan Wang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China
| | - Jing Cui
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China
| | - Hui Jun Ren
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Key Clinical Laboratory of Henan Province, Zhengzhou 450052, China.
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18
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A CCL8 gradient drives breast cancer cell dissemination. Oncogene 2016; 35:6309-6318. [PMID: 27181207 PMCID: PMC5112152 DOI: 10.1038/onc.2016.161] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 03/21/2016] [Accepted: 04/06/2016] [Indexed: 01/14/2023]
Abstract
The migration of cancer cells towards gradients of chemoattractive factors represents a potential, yet elusive, mechanism that may contribute to cancer cell dissemination. Here we provide evidence for the maintenance of a gradient of increasing CCL8 concentration between the epithelium, the stroma and the periphery that is instrumental for breast cancer cells’ dissemination. In response to signals elicited by the neoplastic epithelium CCL8 production is enhanced in stromal fibroblasts at the tumor margins and in tissues at which breast cancer cells tend to metastasize such as the lungs and the brain. Manipulation of CCL8 activity influences the histology of the tumors and promotes major steps of the metastatic process such as invasion to adjacent stroma, intravasation and ultimately extravasation and seeding. These findings exemplify how gradients of chemoattractive factors such as CCL8, drive metastasis and suggest that interference with their operation may provide means for breast cancer management.
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Recoding structural glycoprotein E2 in classical swine fever virus (CSFV) produces complete virus attenuation in swine and protects infected animals against disease. Virology 2016; 494:178-89. [PMID: 27110709 DOI: 10.1016/j.virol.2016.04.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 04/01/2016] [Accepted: 04/04/2016] [Indexed: 11/20/2022]
Abstract
Controlling classical swine fever (CSF) mainly involves vaccination with live attenuated vaccines (LAV). Experimental CSFV LAVs has been lately developed through reverse genetics using several different approaches. Here we present that codon de-optimization in the major CSFV structural glycoprotein E2 coding region, causes virus attenuation in swine. Four different mutated constructs (pCSFm1-pCSFm4) were designed using various mutational approaches based on the genetic background of the highly virulent strain Brescia (BICv). Three of these constructs produced infectious viruses (CSFm2v, CSFm3v, and CSFm4v). Animals infected with CSFm2v presented a reduced and extended viremia but did not display any CSF-related clinical signs. Animals that were infected with CSFm2v were protected against challenge with virulent parental BICv. This is the first report describing the development of an attenuated CSFV experimental vaccine by codon usage de-optimization, and one of the few examples of virus attenuation using this methodology that is assessed in a natural host.
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Halvorsen EC, Hamilton MJ, Young A, Wadsworth BJ, LePard NE, Lee HN, Firmino N, Collier JL, Bennewith KL. Maraviroc decreases CCL8-mediated migration of CCR5(+) regulatory T cells and reduces metastatic tumor growth in the lungs. Oncoimmunology 2016; 5:e1150398. [PMID: 27471618 DOI: 10.1080/2162402x.2016.1150398] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/21/2016] [Accepted: 01/31/2016] [Indexed: 02/08/2023] Open
Abstract
Regulatory T cells (Tregs) play a crucial physiological role in the regulation of immune homeostasis, although recent data suggest Tregs can contribute to primary tumor growth by suppressing antitumor immune responses. Tregs may also influence the development of tumor metastases, although there is a paucity of information regarding the phenotype and function of Tregs in metastatic target organs. Herein, we demonstrate that orthotopically implanted metastatic mammary tumors induce significant Treg accumulation in the lungs, which is a site of mammary tumor metastasis. Tregs in the primary tumor and metastatic lungs express high levels of C-C chemokine receptor type 5 (CCR5) relative to Tregs in the mammary fat pad and lungs of tumor-free mice, and Tregs in the metastatic lungs are enriched for CCR5 expression in comparison to other immune cell populations. We also identify that C-C chemokine ligand 8 (CCL8), an endogenous ligand of CCR5, is produced by F4/80(+) macrophages in the lungs of mice with metastatic primary tumors. Migration of Tregs toward CCL8 ex vivo is reduced in the presence of the CCR5 inhibitor Maraviroc. Importantly, treatment of mice with Maraviroc (MVC) reduces the level of CCR5(+) Tregs and metastatic tumor burden in the lungs. This work provides evidence of a CCL8/CCR5 signaling axis driving Treg recruitment to the lungs of mice bearing metastatic primary tumors, representing a potential therapeutic target to decrease Treg accumulation and metastatic tumor growth.
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Affiliation(s)
- E C Halvorsen
- Integrative Oncology Department, British Columbia Cancer Agency, Vancouver, BC, Canada; Interdisciplinary Oncology Program, University of British Columbia, Vancouver, BC, Canada
| | - M J Hamilton
- Integrative Oncology Department, British Columbia Cancer Agency , Vancouver, BC, Canada
| | - A Young
- Integrative Oncology Department, British Columbia Cancer Agency, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - B J Wadsworth
- Integrative Oncology Department, British Columbia Cancer Agency, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - N E LePard
- Integrative Oncology Department, British Columbia Cancer Agency , Vancouver, BC, Canada
| | - H N Lee
- Integrative Oncology Department, British Columbia Cancer Agency , Vancouver, BC, Canada
| | - N Firmino
- Integrative Oncology Department, British Columbia Cancer Agency, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - J L Collier
- Integrative Oncology Department, British Columbia Cancer Agency, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - K L Bennewith
- Integrative Oncology Department, British Columbia Cancer Agency, Vancouver, BC, Canada; Interdisciplinary Oncology Program, University of British Columbia, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
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Oberthür D, Achenbach J, Gabdulkhakov A, Buchner K, Maasch C, Falke S, Rehders D, Klussmann S, Betzel C. Crystal structure of a mirror-image L-RNA aptamer (Spiegelmer) in complex with the natural L-protein target CCL2. Nat Commun 2015; 6:6923. [PMID: 25901662 PMCID: PMC4423205 DOI: 10.1038/ncomms7923] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 03/16/2015] [Indexed: 02/07/2023] Open
Abstract
We report the crystal structure of a 40mer mirror-image RNA oligonucleotide completely built from nucleotides of the non-natural L-chirality in complex with the pro-inflammatory chemokine L-CLL2 (monocyte chemoattractant protein-1), a natural protein composed of regular L-amino acids. The L-oligonucleotide is an L-aptamer (a Spiegelmer) identified to bind L-CCL2 with high affinity, thereby neutralizing the chemokine's activity. CCL2 plays a key role in attracting and positioning monocytes; its overexpression in several inflammatory diseases makes CCL2 an interesting pharmacological target. The PEGylated form of the L-aptamer, NOX-E36 (emapticap pegol), already showed promising efficacy in clinical Phase II studies conducted in diabetic nephropathy patients. The structure of the L-oligonucleotide·L-protein complex was solved and refined to 2.05 Å. It unveils the L-aptamer's intramolecular contacts and permits a detailed analysis of its structure–function relationship. Furthermore, the analysis of the intermolecular drug–target interactions reveals insight into the selectivity of the L-aptamer for certain related chemokines. Spiegelmers are ‘mirror image' L-ribose oligonucleotides being developed as therapeutics. Here the authors present a crystal structure of the therapeutic L-aptamer NOX-E36 bound to the pro-inflammatory chemokine CLL2, providing insight into NOX-E36's selectivity and mode of action.
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Affiliation(s)
- Dominik Oberthür
- Laboratory for Structural Biology of Infection and Inflammation, University of Hamburg, c/o DESY Building 22a, Notkestrasse 85, 22607 Hamburg, Germany.,Center for Free-Electron Laser Science, Deutsches Elektronen Synchrotron-DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - John Achenbach
- NOXXON Pharma AG, Max-Dohrn-Strasse 8-10, 10589 Berlin, Germany
| | - Azat Gabdulkhakov
- Institute of Protein Research, RAS, Pushchino, Moscow Region 142290, Russian Federation
| | - Klaus Buchner
- NOXXON Pharma AG, Max-Dohrn-Strasse 8-10, 10589 Berlin, Germany
| | | | - Sven Falke
- Laboratory for Structural Biology of Infection and Inflammation, University of Hamburg, c/o DESY Building 22a, Notkestrasse 85, 22607 Hamburg, Germany
| | - Dirk Rehders
- Laboratory for Structural Biology of Infection and Inflammation, University of Hamburg, c/o DESY Building 22a, Notkestrasse 85, 22607 Hamburg, Germany
| | - Sven Klussmann
- NOXXON Pharma AG, Max-Dohrn-Strasse 8-10, 10589 Berlin, Germany
| | - Christian Betzel
- Laboratory for Structural Biology of Infection and Inflammation, University of Hamburg, c/o DESY Building 22a, Notkestrasse 85, 22607 Hamburg, Germany
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22
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Wang G. Human antimicrobial peptides and proteins. Pharmaceuticals (Basel) 2014; 7:545-94. [PMID: 24828484 PMCID: PMC4035769 DOI: 10.3390/ph7050545] [Citation(s) in RCA: 337] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 04/15/2014] [Accepted: 04/29/2014] [Indexed: 12/11/2022] Open
Abstract
As the key components of innate immunity, human host defense antimicrobial peptides and proteins (AMPs) play a critical role in warding off invading microbial pathogens. In addition, AMPs can possess other biological functions such as apoptosis, wound healing, and immune modulation. This article provides an overview on the identification, activity, 3D structure, and mechanism of action of human AMPs selected from the antimicrobial peptide database. Over 100 such peptides have been identified from a variety of tissues and epithelial surfaces, including skin, eyes, ears, mouths, gut, immune, nervous and urinary systems. These peptides vary from 10 to 150 amino acids with a net charge between -3 and +20 and a hydrophobic content below 60%. The sequence diversity enables human AMPs to adopt various 3D structures and to attack pathogens by different mechanisms. While α-defensin HD-6 can self-assemble on the bacterial surface into nanonets to entangle bacteria, both HNP-1 and β-defensin hBD-3 are able to block cell wall biosynthesis by binding to lipid II. Lysozyme is well-characterized to cleave bacterial cell wall polysaccharides but can also kill bacteria by a non-catalytic mechanism. The two hydrophobic domains in the long amphipathic α-helix of human cathelicidin LL-37 lays the basis for binding and disrupting the curved anionic bacterial membrane surfaces by forming pores or via the carpet model. Furthermore, dermcidin may serve as ion channel by forming a long helix-bundle structure. In addition, the C-type lectin RegIIIα can initially recognize bacterial peptidoglycans followed by pore formation in the membrane. Finally, histatin 5 and GAPDH(2-32) can enter microbial cells to exert their effects. It appears that granulysin enters cells and kills intracellular pathogens with the aid of pore-forming perforin. This arsenal of human defense proteins not only keeps us healthy but also inspires the development of a new generation of personalized medicine to combat drug-resistant superbugs, fungi, viruses, parasites, or cancer. Alternatively, multiple factors (e.g., albumin, arginine, butyrate, calcium, cyclic AMP, isoleucine, short-chain fatty acids, UV B light, vitamin D, and zinc) are able to induce the expression of antimicrobial peptides, opening new avenues to the development of anti-infectious drugs.
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Affiliation(s)
- Guangshun Wang
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 986495 Nebraska Medical Center, Omaha, NE 68198-6495, USA.
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Shih YP, Chou CC, Chen YL, Huang KF, Wang AHJ. Linked production of pyroglutamate-modified proteins via self-cleavage of fusion tags with TEV protease and autonomous N-terminal cyclization with glutaminyl cyclase in vivo. PLoS One 2014; 9:e94812. [PMID: 24733552 PMCID: PMC3986218 DOI: 10.1371/journal.pone.0094812] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 03/19/2014] [Indexed: 12/28/2022] Open
Abstract
Overproduction of N-terminal pyroglutamate (pGlu)-modified proteins utilizing Escherichia coli or eukaryotic cells is a challenging work owing to the fact that the recombinant proteins need to be recovered by proteolytic removal of fusion tags to expose the N-terminal glutaminyl or glutamyl residue, which is then converted into pGlu catalyzed by the enzyme glutaminyl cyclase. Herein we describe a new method for production of N-terminal pGlu-containing proteins in vivo via intracellular self-cleavage of fusion tags by tobacco etch virus (TEV) protease and then immediate N-terminal cyclization of passenger target proteins by a bacterial glutaminyl cyclase. To combine with the sticky-end PCR cloning strategy, this design allows the gene of target proteins to be efficiently inserted into the expression vector using two unique cloning sites (i.e., SnaB I and Xho I), and the soluble and N-terminal pGlu-containing proteins are then produced in vivo. Our method has been successfully applied to the production of pGlu-modified enhanced green fluorescence protein and monocyte chemoattractant proteins. This design will facilitate the production of protein drugs and drug target proteins that possess an N-terminal pGlu residue required for their physiological activities.
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Affiliation(s)
- Yan-Ping Shih
- Institute of Biological Chemistry and Core Facilities for Protein Structural Analysis, Academia Sinica, Taipei, Taiwan
| | - Chi-Chi Chou
- Institute of Biological Chemistry and Core Facilities for Protein Structural Analysis, Academia Sinica, Taipei, Taiwan
| | - Yi-Ling Chen
- Institute of Biological Chemistry and Core Facilities for Protein Structural Analysis, Academia Sinica, Taipei, Taiwan
| | - Kai-Fa Huang
- Institute of Biological Chemistry and Core Facilities for Protein Structural Analysis, Academia Sinica, Taipei, Taiwan
- * E-mail: (AHJW); (KFH)
| | - Andrew H.- J. Wang
- Institute of Biological Chemistry and Core Facilities for Protein Structural Analysis, Academia Sinica, Taipei, Taiwan
- * E-mail: (AHJW); (KFH)
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Gerke AK, Pezzulo AA, Tang F, Cavanaugh JE, Bair TB, Phillips E, Powers LS, Monick MM. Effects of vitamin D supplementation on alveolar macrophage gene expression: preliminary results of a randomized, controlled trial. Multidiscip Respir Med 2014; 9:18. [PMID: 24669961 PMCID: PMC3986866 DOI: 10.1186/2049-6958-9-18] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 03/13/2014] [Indexed: 12/04/2022] Open
Abstract
Background Vitamin D deficiency has been implicated as a factor in a number of infectious and inflammatory lung diseases. In the lung, alveolar macrophages play a key role in inflammation and defense of infection, but there are little data exploring the immunomodulatory effects of vitamin D on innate lung immunity in humans. The objective of this study was to determine the effects of vitamin D supplementation on gene expression of alveolar macrophages. Methods We performed a parallel, double-blind, placebo-controlled, randomized trial to determine the effects of vitamin D on alveolar macrophage gene expression. Vitamin D3 (1000 international units/day) or placebo was administered to adults for three months. Bronchoscopy was performed pre- and post-intervention to obtain alveolar macrophages. Messenger RNA was isolated from the macrophages and subjected to whole genome exon array analysis. The primary outcome was differential gene expression of the alveolar macrophage in response to vitamin D supplementation. Specific genes underwent validation by polymerase chain reaction methods. Results Fifty-eight subjects were randomized to vitamin D (n = 28) or placebo (n = 30). There was a marginal overall difference between treatment group and placebo group in the change of 25-hydroxyvitaminD levels (4.43 ng/ml vs. 0.2 ng/ml, p = 0.10). Whole genome exon array analysis revealed differential gene expression associated with change in serum vitamin D levels in the treated group. CCL8/MCP-2 was the top-regulated cytokine gene and was further validated. Conclusions Although only a non-significant increased trend was seen in serum vitamin D levels, subjects treated with vitamin D supplementation had immune-related differential gene expression in alveolar macrophages. Trial registration ClinicalTrials.org: NCT01967628.
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Affiliation(s)
- Alicia K Gerke
- Department of Internal Medicine, University of Iowa, 200 Hawkins Dr, Iowa City 52242, IA, USA.
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Dykstra AB, Sweeney MD, Leary JA. Structural Evidence for the Tetrameric Assembly of Chemokine CCL11 and the Glycosaminoglycan Arixtra™. Biomolecules 2013; 3:905-22. [PMID: 24970196 PMCID: PMC4030970 DOI: 10.3390/biom3040905] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 10/23/2013] [Accepted: 10/29/2013] [Indexed: 01/01/2023] Open
Abstract
Understanding chemokine interactions with glycosaminoglycans (GAG) is critical as these interactions have been linked to a number of inflammatory medical conditions, such as arthritis and asthma. To better characterize in vivo protein function, comprehensive knowledge of multimeric species, formed by chemokines under native conditions, is necessary. Herein is the first report of a tetrameric assembly of the human chemokine CCL11, which was shown bound to the GAG Arixtra™. Isothermal titration calorimetry data indicated that CCL11 interacts with Arixtra, and ion mobility mass spectrometry (IM-MS) was used to identify ions corresponding to the CCL11 tetrameric species bound to Arixtra. Collisional cross sections (CCS) of the CCL11 tetramer-Arixtra noncovalent complex were compared to theoretical CCS values calculated using a preliminary structure of the complex deduced using X-ray crystallography. Experimental CCS values were in agreement with theoretical values, strengthening the IM-MS evidence for the formation of the noncovalent complex. Tandem mass spectrometry data of the complex indicated that the tetramer-GAG complex dissociates into a monomer and a trimer-GAG species, suggesting that two CC-like dimers are bridged by Arixtra. As development of chemokine inhibitors is of utmost importance to treatment of medical inflammatory conditions, these results provide vital insights into chemokine-GAG interactions.
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Affiliation(s)
- Andrew B Dykstra
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, 521 Parnassus Avenue, San Francisco, CA 94143, USA.
| | - Matt D Sweeney
- Perspectives, Inc., 2231 Garden Highway, Sacramento, CA 95833, USA.
| | - Julie A Leary
- Department of Molecular and Cellular Biology, University of California, 1 Shields Avenue, Davis, CA 95616, USA.
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Chemokine oligomerization in cell signaling and migration. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2013; 117:531-78. [PMID: 23663982 DOI: 10.1016/b978-0-12-386931-9.00020-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chemokines are small proteins best known for their role in controlling the migration of diverse cells, particularly leukocytes. Upon binding to their G-protein-coupled receptors on the leukocytes, chemokines stimulate the signaling events that cause cytoskeletal rearrangements involved in cell movement, and migration of the cells along chemokine gradients. Depending on the cell type, chemokines also induce many other types of cellular responses including those related to defense mechanisms, cell proliferation, survival, and development. Historically, most research efforts have focused on the interaction of chemokines with their receptors, where monomeric forms of the ligands are the functionally relevant state. More recently, however, the importance of chemokine interactions with cell surface glycosaminoglycans has come to light, and in most cases appears to involve oligomeric chemokine structures. This review summarizes existing knowledge relating to the structure and function of chemokine oligomers, and emerging methodology for determining structures of complex chemokine assemblies in the future.
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van der Loo W, Afonso S, de Matos AL, Abrantes J, Esteves PJ. Pseudogenization of the MCP-2/CCL8 chemokine gene in European rabbit (genus Oryctolagus), but not in species of Cottontail rabbit (Sylvilagus) and Hare (Lepus). BMC Genet 2012; 13:72. [PMID: 22894773 PMCID: PMC3511233 DOI: 10.1186/1471-2156-13-72] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Accepted: 07/11/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recent studies in human have highlighted the importance of the monocyte chemotactic proteins (MCP) in leukocyte trafficking and their effects in inflammatory processes, tumor progression, and HIV-1 infection. In European rabbit (Oryctolagus cuniculus) one of the prime MCP targets, the chemokine receptor CCR5 underwent a unique structural alteration. Until now, no homologue of MCP-2/CCL8a, MCP-3/CCL7 or MCP-4/CCL13 genes have been reported for this species. This is interesting, because at least the first two genes are expressed in most, if not all, mammals studied, and appear to be implicated in a variety of important chemokine ligand-receptor interactions. By assessing the Rabbit Whole Genome Sequence (WGS) data we have searched for orthologs of the mammalian genes of the MCP-Eotaxin cluster. RESULTS We have localized the orthologs of these chemokine genes in the genome of European rabbit and compared them to those of leporid genera which do (i.e. Oryctolagus and Bunolagus) or do not share the CCR5 alteration with European rabbit (i.e. Lepus and Sylvilagus). Of the Rabbit orthologs of the CCL8, CCL7, and CCL13 genes only the last two were potentially functional, although showing some structural anomalies at the protein level. The ortholog of MCP-2/CCL8 appeared to be pseudogenized by deleterious nucleotide substitutions affecting exon1 and exon2. By analyzing both genomic and cDNA products, these studies were extended to wild specimens of four genera of the Leporidae family: Oryctolagus, Bunolagus, Lepus, and Sylvilagus. It appeared that the anomalies of the MCP-3/CCL7 and MCP-4/CCL13 proteins are shared among the different species of leporids. In contrast, whereas MCP-2/CCL8 was pseudogenized in every studied specimen of the Oryctolagus - Bunolagus lineage, this gene was intact in species of the Lepus - Sylvilagus lineage, and was, at least in Lepus, correctly transcribed. CONCLUSION The biological function of a gene was often revealed in situations of dysfunction or gene loss. Infections with Myxoma virus (MYXV) tend to be fatal in European rabbit (genus Oryctolagus), while being harmless in Hares (genus Lepus) and benign in Cottontail rabbit (genus Sylvilagus), the natural hosts of the virus. This communication should stimulate research on a possible role of MCP-2/CCL8 in poxvirus related pathogenicity.
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Affiliation(s)
- Wessel van der Loo
- CIBIO-UP, Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, Universidade do Porto, Vairão, 4485-661, Portugal.
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Inhibition of glutaminyl cyclase attenuates cell migration modulated by monocyte chemoattractant proteins. Biochem J 2012; 442:403-12. [DOI: 10.1042/bj20110535] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
QC (glutaminyl cyclase) catalyses the formation of N-terminal pGlu (pyroglutamate) in peptides and proteins. pGlu formation in chemoattractants may participate in the regulation of macrophage activation and migration. However, a clear molecular mechanism for the regulation is lacking. The present study examines the role of QC-mediated pGlu formation on MCPs (monocyte chemoattractant proteins) in inflammation. We demonstrated in vitro the pGlu formation on MCPs by QC using MS. A potent QC inhibitor, PBD150, significantly reduced the N-terminal uncyclized-MCP-stimulated monocyte migration, whereas pGlu-containing MCP-induced cell migration was unaffected. QC small interfering RNA revealed a similar inhibitory effect. Lastly, we demonstrated that inhibiting QC can attenuate cell migration by lipopolysaccharide. These results strongly suggest that QC-catalysed N-terminal pGlu formation of MCPs is required for monocyte migration and provide new insights into the role of QC in the inflammation process. Our results also suggest that QC could be a drug target for some inflammatory disorders.
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Murphy JW, Yuan H, Kong Y, Xiong Y, Lolis EJ. Heterologous quaternary structure of CXCL12 and its relationship to the CC chemokine family. Proteins 2010; 78:1331-7. [PMID: 20077567 DOI: 10.1002/prot.22666] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- James W Murphy
- Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut 06520, USA
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30
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A surface plasmon resonance-based solution affinity assay for heparan sulfate-binding proteins. Glycoconj J 2008; 26:577-87. [DOI: 10.1007/s10719-008-9210-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2008] [Revised: 10/05/2008] [Accepted: 10/27/2008] [Indexed: 12/15/2022]
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De Jesus JB, Cuervo P, Junqueira M, Britto C, Silva-Filho FC, Sabóia-Vahia L, González LJ, Barbosa Domont G. Application of two-dimensional electrophoresis and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry for proteomic analysis of the sexually transmitted parasite Trichomonas vaginalis. JOURNAL OF MASS SPECTROMETRY : JMS 2007; 42:1463-1473. [PMID: 17960578 DOI: 10.1002/jms.1286] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Trichomonas vaginalis is a sexually transmitted protozoan parasite that infects the human urogenital tract causing trichomoniasis, a worldwide disease. In this work, a fresh clinical isolate of T. vaginalis was used for study of the protein expression in this species. Two-dimensional gel electrophoresis (2-DE) and MALDI-TOF/TOF mass spectrometry (MS) were employed to create a reference map of soluble proteins in the pH range 4-7. A set of 116 proteins belonging to functional classes expressed in high and low abundance was identified by peptide mass fingerprinting and tandem MS. These identifications corresponded to 67 different proteins, suggesting that post-translational modifications are common phenomena in T. vaginalis. Identified proteins were classified into 16 groups according to biological processes. Among detected proteins we identified the major enzymes involved in both cytosolic and hydrogenosomal metabolic pathways, as well as putative protein targets for new drug design. In addition, this analysis allows validation of previous gene predictions confirming the expression of 15 hypothetical proteins. Finally, the findings here reported represent the first reference proteome map of T. vaginalis and the first steps towards the description of a comprehensive proteome map of this parasite.
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Affiliation(s)
- Jose Batista De Jesus
- Laboratório de Biologia Molecular e Doenças Endêmicas, Departamento de Bioquímica e Biologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
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32
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Cuervo P, de Jesus JB, Junqueira M, Mendonça-Lima L, González LJ, Betancourt L, Grimaldi G, Domont GB, Fernandes O, Cupolillo E. Proteome analysis of Leishmania (Viannia) braziliensis by two-dimensional gel electrophoresis and mass spectrometry. Mol Biochem Parasitol 2007; 154:6-21. [PMID: 17499861 DOI: 10.1016/j.molbiopara.2007.03.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2006] [Revised: 03/12/2007] [Accepted: 03/21/2007] [Indexed: 10/23/2022]
Abstract
Leishmania (Viannia) braziliensis, a protozoan parasite widespread in the New World, is responsible for the infection of different mammal orders, including humans. This species is considered to be a major etiological agent of American cutaneous leishmaniasis. A proteomic study was carried out to identify proteins expressed by L. (V.) braziliensis. One hundred and one spots representing 75 protein entries were identified by MALDI-TOF-TOF. Isoelectric point values estimated by gel electrophoresis matched closely with predicted values, although some discrepancies existed suggesting that post-translational protein modifications may be common in L. braziliensis. Moreover, 20 hypothetical proteins were experimentally identified. Identified proteins were classified into 15 groups according to biological process. Among the proteins identified, approximately 40% have not been previously reported in a proteomic map of Leishmania. In addition, a number of potential virulence factors and drug targets were identified in this protein map, including some proteins associated with the metastatic phenotype. This study describes the first compilation of a proteomic reference map for L. braziliensis (pI 4-7, M(r) 10-130 kDa) and provides a very useful tool for comparative studies of strains isolated from patients presenting different clinical manifestations of leishmaniasis as well as a potential tool to identify markers for clinical diagnosis, therapeutics, and prognosis.
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Affiliation(s)
- Patricia Cuervo
- Departamento de Imunologia, Instituto Oswaldo Cruz, FIOCRUZ, Av. Brasil 4365, Manguinhos, 21045-900 Rio de Janeiro, RJ, Brazil
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Abstract
Chemokines are critical mediators of cell migration during routine immune surveillance, inflammation, and development. Chemokines bind to G protein-coupled receptors and cause conformational changes that trigger intracellular signaling pathways involved in cell movement and activation. Although chemokines evolved to benefit the host, inappropriate regulation or utilization of these proteins can contribute to or cause many diseases. Specific chemokine receptors provide the portals for HIV to get into cells, and others contribute to inflammatory diseases and cancer. Thus, there is significant interest in developing receptor antagonists. To this end, the structures of ligands coupled with mutagenesis studies have revealed mechanisms for antagonism based on modified proteins. Although little direct structural information is available on the receptors, binding of small molecules to mutant receptors has allowed the identification of key residues involved in the receptor-binding pockets. In this review, we discuss the current knowledge of chemokine:receptor structure and function, and its contribution to drug discovery.
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Affiliation(s)
- Samantha J Allen
- Skaggs School of Pharmacy and Pharmaceutical Science, University of California, San Diego, La Jolla, California 92093, USA.
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34
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Arnold PL, Fremont DH. Structural determinants of chemokine binding by an Ectromelia virus-encoded decoy receptor. J Virol 2006; 80:7439-49. [PMID: 16840324 PMCID: PMC1563704 DOI: 10.1128/jvi.00576-06] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The EVM1 protein encoded by Ectromelia virus is a member of a highly conserved family of poxvirus chemokine binding proteins that interfere with host immune surveillance processes. EVM1 is abundantly expressed early during mousepox infection and is able to selectively bind CC chemokines and inhibit their interactions with host receptors. Here, we characterize the interaction between EVM1 and the human and murine chemokines CCL3 (MIP-1alpha), CCL2 (MCP-1), and CCL5 (RANTES). Each of these CC chemokines binds EVM1 with 1:1 stoichiometry and equilibrium dissociation constants ranging from 29 pM to 20 nM. The interactions are characterized by rapid-association kinetics between acidic EVM1 and generally basic chemokines with half-lives enduring up to 30 min. The 2.6-A crystal structure of EVM1 reveals a globular beta sandwich with a large, sequence-conserved surface patch encircled by acidic residues on one face of the protein. To determine whether this conserved cluster of residues is involved in chemokine engagement, a structure-based mutational analysis of EVM1 was employed. Mapping of the mutational results onto the surface of EVM1 reveals that a cluster of five residues (I173, S171, S134, N136, and Y69) emanating from one beta sheet is critical for CCL2 and CCL3 sequestration. Additionally, we find that the extended beta2-beta4 loop flanking this conserved cluster is also essential for high-affinity, lasting interactions with chemokines. This analysis provides insight into the mechanism of CC-chemokine inhibition employed by the poxvirus family of chemokine decoy receptors.
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Affiliation(s)
- Phoebe L Arnold
- Department of Pathology and Immunology, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO 63110-1093, USA
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35
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Gillis JS. Microarray evidence of glutaminyl cyclase gene expression in melanoma: implications for tumor antigen specific immunotherapy. J Transl Med 2006; 4:27. [PMID: 16820060 PMCID: PMC1557589 DOI: 10.1186/1479-5876-4-27] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2006] [Accepted: 07/04/2006] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND In recent years encouraging progress has been made in developing vaccine treatments for cancer, particularly with melanoma. However, the overall rate of clinically significant results has remained low. The present research used microarray datasets from previous investigations to examine gene expression patterns in cancer cell lines with the goal of better understanding the tumor microenvironment. METHODS Principal Components Analyses with Promax rotational transformations were carried out with 90 cancer cell lines from 3 microarray datasets, which had been made available on the internet as supplementary information from prior publications. RESULTS In each of the analyses a well defined melanoma component was identified that contained a gene coding for the enzyme, glutaminyl cyclase, which was as highly expressed as genes from a variety of well established biomarkers for melanoma, such as MAGE-3 and MART-1, which have frequently been used in clinical trials of melanoma vaccines. CONCLUSION Since glutaminyl cyclase converts glutamine and glutamic acid into a pyroglutamic form, it may interfere with the tumor destructive process of vaccines using peptides having glutamine or glutamic acid at their N-terminals. Finding ways of inhibiting the activity of glutaminyl cyclase in the tumor microenvironment may help to increase the effectiveness of some melanoma vaccines.
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Affiliation(s)
- John Stuart Gillis
- Science and Technology Studies, St, Thomas University, Fredericton, New Brunswick, Canada.
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Crown SE, Yu Y, Sweeney MD, Leary JA, Handel TM. Heterodimerization of CCR2 chemokines and regulation by glycosaminoglycan binding. J Biol Chem 2006; 281:25438-46. [PMID: 16803905 DOI: 10.1074/jbc.m601518200] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Despite the wide range of sequence diversity among chemokines, their tertiary structures are remarkably similar. Furthermore, many chemokines form dimers or higher order oligomers, but all characterized oligomeric structures are based primarily on two dimerization motifs represented by CC-chemokine or CXC-chemokine dimer interfaces. These observations raise the possibility that some chemokines could form unique hetero-oligomers using the same oligomerization motifs. Such interactions could modulate the overall signaling response of the receptors, thereby providing a general mechanism for regulating chemokine function. For some chemokines, homo-oligomerization has also been shown to be coupled to glycosaminoglycan (GAG)-binding. However, the effect of GAG binding on chemokine hetero-oligomerization has not yet been demonstrated. In this report, we characterized the heterodimerization of the CCR2 ligands MCP-1 (CCL2), MCP-2 (CCL8), MCP-3 (CCL7), MCP-4 (CCL13), and eotaxin (CCL11), as well as the effects of GAG binding, using electrospray ionization Fourier transform ion cyclotron resonance (ESI-FTICR) mass spectrometry. Strong heterodimerization was observed between CCL2 and CCL8 at the expense of homodimer formation. Using NMR, we showed that the heterodimer is predominant in solution and forms a specific CC chemokine-like dimer. By contrast, only moderate heterodimer formation was observed between CCL2.CCL13, CCL2.CCL11 and CCL8.CCL13, and no heterodimerization was observed when any other CCR2 ligand was added to CCL7. To investigate the effect of a highly sulfated GAG on the formation of heterodimers, each chemokine pair was mixed with the heparin pentasaccharide, Arixtra, and assayed by ESI-FTICR mass spectrometry. Although no CCL8.CCL11 heterodimer was observed in the absence of GAG, abundant ions corresponding to the ternary complex, CCL8.CCL11.Arixtra, were observed upon addition of Arixtra. Heterodimerization between CCL2 and CCL11 was also enhanced in the presence of Arixtra. In summary, these results indicate that some CCR2 ligands can form stable heterodimers in preference to homodimers and that these interactions, like those of homo-oligomers, can be influenced by some GAGs.
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Affiliation(s)
- Susan E Crown
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, USA
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Reid C, Rushe M, Jarpe M, van Vlijmen H, Dolinski B, Qian F, Cachero TG, Cuervo H, Yanachkova M, Nwankwo C, Wang X, Etienne N, Garber E, Bailly V, de Fougerolles A, Boriack-Sjodin PA. Structure activity relationships of monocyte chemoattractant proteins in complex with a blocking antibody. Protein Eng Des Sel 2006; 19:317-24. [PMID: 16682434 DOI: 10.1093/protein/gzl015] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Monocyte chemoattractant proteins (MCPs) are cytokines that direct immune cells bearing appropriate receptors to sites of inflammation or injury and are therefore attractive therapeutic targets for inhibitory molecules. 11K2 is a blocking mouse monoclonal antibody active against several human and murine MCPs. A 2.5 A structure of the Fab fragment of this antibody in complex with human MCP-1 has been solved. The Fab blocks CCR2 receptor binding to MCP-1 through an adjacent but distinct binding site. The orientation of the Fab indicates that a single MCP-1 dimer will bind two 11K2 antibodies. Several key residues on the antibody and on human MCPs were predicted to be involved in antibody selectivity. Mutational analysis of these residues confirms their involvement in the antibody-chemokine interaction. In addition to mutations that decreased or disrupted binding, one antibody mutation resulted in a 70-fold increase in affinity for human MCP-2. A key residue missing in human MCP-3, a chemokine not recognized by the antibody, was identified and engineering the preferred residue into the chemokine conferred binding to the antibody.
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Affiliation(s)
- Carl Reid
- Department of Research, Biogen Idec, Inc. 12 Cambridge Center, Cambridge, MA 02142, USA
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38
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Lou YC, Huang YC, Pan YR, Chen C, Liao YD. Roles of N-terminal pyroglutamate in maintaining structural integrity and pKa values of catalytic histidine residues in bullfrog ribonuclease 3. J Mol Biol 2005; 355:409-21. [PMID: 16309702 DOI: 10.1016/j.jmb.2005.10.069] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2005] [Revised: 10/19/2005] [Accepted: 10/25/2005] [Indexed: 11/22/2022]
Abstract
Many proteins and bioactive peptides contain an N-terminal pyroglutamate residue (Pyr1). This residue reduces the susceptibility of the protein to aminopeptidases and often has important functional roles. The antitumor ribonuclease RC-RNase 3 (RNase 3) from oocytes of Rana catesbeiana (bullfrog) is one such protein. We have produced recombinant RNase 3 containing the N-terminal Pyr1 (pRNase 3) and found it to be indistinguishable from the native RNase 3 by mass spectrometry and a variety of other biochemical and immunological criteria. We demonstrated by NMR analysis that the Pyr1 of pRNase 3 forms hydrogen bonds with Lys9 and Ile96 and stabilizes the N-terminal alpha-helix in a rigid conformation. In contrast, the N-terminal alpha-helix becomes flexible and the pKa values of the catalytic residues His10 and His97 altered when Pyr1 formation is blocked by an extra methionine at the N terminus in the recombinant mqRNase 3. Thus, our results provide a mechanistic explanation on the essential role of Pyr1 in maintaining the structural integrity, especially at the N-terminal alpha-helix, and in providing the proper environment for the ionization of His10 and His97 residues for catalysis and cytotoxicity against HeLa cells.
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Affiliation(s)
- Yuan-Chao Lou
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan, ROC
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39
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Luz JG, Yu M, Su Y, Wu Z, Zhou Z, Sun R, Wilson IA. Crystal structure of viral macrophage inflammatory protein I encoded by Kaposi's sarcoma-associated herpesvirus at 1.7A. J Mol Biol 2005; 352:1019-28. [PMID: 16140327 DOI: 10.1016/j.jmb.2005.08.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2005] [Revised: 08/03/2005] [Accepted: 08/11/2005] [Indexed: 10/25/2022]
Abstract
Viral macrophage inflammatory protein I (vMIP-I) is a chemokine encoded by the Kaposi's sarcoma-associated herpesvirus (KSHV) that selectively activates the CC chemokine receptor 8 (CCR8), for which the endogenous ligand is CCL1. The crystal structure of vMIP-I was determined at 1.7A for comparison with other chemokines, especially those that bind CCR8, such as vMIP-II from KSHV, a CCR8 antagonist and the closest homolog (40% identical). vMIP-I has a typical chemokine fold consisting of an extended N-terminal loop, followed by a three-stranded antiparallel beta-sheet and a C-terminal alpha-helix. The four molecules in the asymmetric unit comprise two MIP-1beta-like dimers. Electrostatic surface representations of CCR8-binding chemokines reveal only minor areas of correlating surface potential, which must be reconciled with promiscuity in receptor and glycosaminoglycan (GAG) binding. In addition, the biological relevance of chemokine oligomerization is examined by comparing the oligomeric states of all chemokine structures deposited to date in the RCSB PDB.
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Affiliation(s)
- John G Luz
- Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
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40
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Yu Y, Sweeney MD, Saad OM, Crown SE, Hsu AR, Handel TM, Leary JA. Chemokine-glycosaminoglycan binding: specificity for CCR2 ligand binding to highly sulfated oligosaccharides using FTICR mass spectrometry. J Biol Chem 2005; 280:32200-8. [PMID: 16033763 DOI: 10.1074/jbc.m505738200] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Glycosaminoglycans (GAGs) have recently been demonstrated to be required for the in vivo activity of several chemokines. Minimally, the interaction is thought to provide a mechanism for retention at the site of secretion and the formation of chemokine gradients that provide directional cues for receptor bearing cells, particularly in the presence of shear forces. Thus, a key issue will be to determine the sequence and structure of the GAGs that bind to specific chemokines. Herein, we describe a mass spectrometry assay that was developed to detect protein-oligosaccharide noncovalent complexes, in this case chemokine-GAG interactions, and to select for high affinity GAGs. The process is facilitated by the ability of electrospray ionization to transfer the intact noncovalent complexes from solution into the gas phase. The elemental composition as well as the binding stoichiometry can be calculated from the mass of the complex. Ligands of the chemokine receptor, CCR2 (MCP-1/CCL2, MCP-2/CCL8, MCP-3/CCL7, MCP-4/CCL13, and Eotaxin/CCL11), and the CCR10 ligand CTACK/CCL27 were screened against a small, highly sulfated, heparin oligosaccharide library with limited structural variation. The results revealed heparin octasaccharides with 11 and 12 sulfates as binders. Oligomerization of some chemokines was observed upon GAG binding, whereas in other instances only the monomeric noncovalent complex was identified. The results indicate that, in contrast to the apparent redundancy in the chemokine system, where several chemokines bind and activate the same receptor, these chemokines could be differentiated into two groups based on the stoichiometry of their complexes with the heparin oligosaccharides.
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Affiliation(s)
- Yonghao Yu
- Genome Center, Department of Chemistry, University of California, Davis, 95616, USA
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41
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Petkovic V, Moghini C, Paoletti S, Uguccioni M, Gerber B. Eotaxin-3/CCL26 is a natural antagonist for CC chemokine receptors 1 and 5. A human chemokine with a regulatory role. J Biol Chem 2004; 279:23357-63. [PMID: 15039444 DOI: 10.1074/jbc.m309283200] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Eotaxin-3 (CCL26), like eotaxin (CCL11) and eotaxin-2 (CCL24), has long been considered a specific agonist for CC chemokine receptor 3 (CCR3), attracting and activating eosinophils, basophils, and Th2 type T lymphocytes. Although not characterized extensively yet, its expression profile coincides with a potential role in allergic inflammation. We recently reported that eotaxin-3 is an antagonist for CCR2 (Ogilvie, P., Paoletti, S., Clark-Lewis, I., and Uguccioni, M. (2003) Blood 102, 789-784). In the present report, we provide evidence that eotaxin-3 acts as a natural antagonist on CCR1 and -5 as well. Eotaxin-3 bound to cells transfected with either CCR1 or -5 as well as to monocytes expressing both receptors. Further, it inhibited chemotaxis, the release of free intracellular calcium, and actin polymerization when cells were stimulated with known agonists of CCR1 and -5. An analysis of its three-dimensional structure indicated the presence of two distinct epitopes that may be involved in specific binding to CCR1, -2, -3, and -5. Taken together, our data thus indicate eotaxin-3 to be the first human chemokine that features broadband antagonistic activities, suggesting that it may have a modulatory rather than an inflammatory function. Further, eotaxin-3 may play an unrecognized role in the polarization of cellular recruitment by attracting Th2 lymphocytes as well as eosinophils and basophils via CCR3, while concomitantly blocking the recruitment of Th1 lymphocytes and monocytes via CCR1, -2, and -5.
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Affiliation(s)
- Vibor Petkovic
- Institute for Research in Biomedicine, CH-6500 Bellinzona, Switzerland
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42
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Lau EK, Allen S, Hsu AR, Handel TM. Chemokine-receptor interactions: GPCRs, glycosaminoglycans and viral chemokine binding proteins. ADVANCES IN PROTEIN CHEMISTRY 2004; 68:351-91. [PMID: 15500866 DOI: 10.1016/s0065-3233(04)68010-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A key feature of the immune system is the migration of leukocytes throughout the organism in an effort to patrol for infectious pathogens, tissue damage, and other physiological insults. This remarkable surveillance system is controlled by a family of proteins called chemokines (chemoattractant cytokines), and their respective receptors. Originally discovered because of their role in cell recruitment during inflammation, it is now well recognized that chemokines are also involved in other diverse processes including lymphocyte development and homing, organogenesis, and neuronal communication. While chemokines have evolved largely for host protection, their ability to induce cell damage and inappropriate cell recruitment, can lead to disease. Thus, there is considerable interest in developing antagonists. In this review we emphasize what is known about the structural biology of chemokines, chemokine receptors, and interactions with cell surface glycosaminoglycans. We also briefly describe their role in certain diseases and strategies for interfering with chemokine function that have emerged from mechanistic and structural understanding of their function. Finally we discuss viral mechanisms for sabotaging or manipulating the chemokine system, in part to illustrate the level of molecular mimicry that viruses have achieved and the evolutionary pressure imposed on the immune system by these pathogens.
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Affiliation(s)
- Elaine K Lau
- Department of Molecular and Cell Biology, University of California Berkeley, California 94720, USA
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43
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Sasaki M, Hasegawa H, Kohno M, Inoue A, Ito MR, Fujita S. Antagonist of secondary lymphoid-tissue chemokine (CCR ligand 21) prevents the development of chronic graft-versus-host disease in mice. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2003; 170:588-96. [PMID: 12496447 DOI: 10.4049/jimmunol.170.1.588] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The use of receptor antagonists for chemokines is an alternative approach to blocking chemokine actions and has the potential to provide novel therapeutics. We determined the receptor antagonist properties of murine N-terminally truncated secondary lymphoid tissue chemokine (SLC)/6Ckine/CCR ligand 21 analogs and evaluated the preventive effects of SLC antagonists on chronic graft-vs-host disease (GVHD) in a murine model by blocking the homing of donor CCR7-expressing T cells into the recipient's lymphoid organs. SLC analogs truncated >4 aa residues from the N terminus showed a loss of chemotaxis and Ca2+ influx of CCR7-expressing cells and also inhibited SLC-stimulated chemotaxis and SLC-induced Ca2+ influx completely. To determine whether SLC antagonist inhibits the development of chronic GVHD, chronic GVHD was induced by injecting DBA/2 spleen cells into (C57BL/6 x DBA/2) F1 mice. Total numbers of spleen cells and host B cells, serum levels of IgE, and of total IgG and IgG1 of anti-DNA Abs in SLC antagonist-treated GVHD mice were significantly lower than those in control PBS-treated GVHD mice. This was due to a reduction in the levels of activated donor CD4+ T cells and a decrease in IL-4 production, resulting in a reduction in the numbers of activated host B cells. Therefore, our results suggest that SLC antagonist has beneficial effects for the prevention of chronic GVHD.
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Affiliation(s)
- Miho Sasaki
- First Department of Internal Medicine, Ehime University School of Medicine, Shigenobu, Ehime, Japan
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44
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Struyf S, Proost P, Van Damme J. Regulation of the Immune Response by the Interaction of Chemokines and Proteases. Adv Immunol 2003; 81:1-44. [PMID: 14711052 DOI: 10.1016/s0065-2776(03)81001-5] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Sofie Struyf
- Laboratory of Molecular Immunology, Rega Institute for Medical Research, Minderbroedersstraat 10, University of Leuven, B-3000 Leuven, Belgium
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45
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Abstract
Chemokines are the largest family of cytokines in human immunophysiology. These proteins are defined by four invariant cysteines and are categorized based on the sequence around the first two cysteines, which leads to two major and two minor subfamilies. Chemokines function by activating specific G protein-coupled receptors, which results in, among other functions, the migration of inflammatory and noninflammatory cells to the appropriate tissues or compartments within tissues. Some of these proteins and receptors have been implicated or shown to be involved in inflammation, autoimmune diseases, and infection by HIV-1. The three-dimensional structure of each monomer is virtually identical, but the quaternary structure of chemokines is different for each subfamily. Structure-function studies reveal several regions of chemokines to be involved in function, with the N-terminal region playing a dominant role. A number of proteins and small-molecule antagonists have been identified that inhibit chemokine activities. In this review, we discuss aspects of the structure, function, and inhibition of chemokines.
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Affiliation(s)
- Elias J Fernandez
- Department of Pharmacology, Yale University, New Haven, Connecticut 06520-8066, USA.
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46
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Lortat-Jacob H, Grosdidier A, Imberty A. Structural diversity of heparan sulfate binding domains in chemokines. Proc Natl Acad Sci U S A 2002; 99:1229-34. [PMID: 11830659 PMCID: PMC122172 DOI: 10.1073/pnas.032497699] [Citation(s) in RCA: 194] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Heparan sulfate (HS) molecules are ubiquitous in animal tissues where they function as ligands that are dramatically involved in the regulation of the proteins they bind. Of these, chemokines are a family of small proteins with many biological functions. Their well-conserved monomeric structure can associate in various oligomeric forms especially in the presence of HS. Application of protein surface analysis and energy calculations to all known chemokine structures leads to the proposal that four different binding modes are created by the folding and oligomerization of these proteins. So, based on the present state of our knowledge, four different clusters of amino acids should be involved in the recognition process. Our results help to rationalize how unique sequences of HS specifically bind any given chemokine. The conclusions open the route for a rational design of compounds of therapeutical interest that could influence chemokine activity.
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Affiliation(s)
- Hugues Lortat-Jacob
- Institut de Biologie Structurale, Centre National de la Recherche Scientifique-Commissariat à l'Energie Atomique-Université Joseph Fourier, Laboratoire de Biophysique Moléculaire, 41 Rue Horowitz, 38027 Grenoble Cedex 01, France
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