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Cytoplasmic Tail of MT1-MMP: A Hub of MT1-MMP Regulation and Function. Int J Mol Sci 2023; 24:ijms24065068. [PMID: 36982142 PMCID: PMC10049710 DOI: 10.3390/ijms24065068] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 03/09/2023] Open
Abstract
MT1-MMP (MMP-14) is a multifunctional protease that regulates ECM degradation, activation of other proteases, and a variety of cellular processes, including migration and viability in physiological and pathological contexts. Both the localization and signal transduction capabilities of MT1-MMP are dependent on its cytoplasmic domain that constitutes the final 20 C-terminal amino acids, while the rest of the protease is extracellular. In this review, we summarize the ways in which the cytoplasmic tail is involved in regulating and enacting the functions of MT1-MMP. We also provide an overview of known interactors of the MT1-MMP cytoplasmic tail and the functional significance of these interactions, as well as further insight into the mechanisms of cellular adhesion and invasion that are regulated by the cytoplasmic tail.
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2
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Langguth P, Peckert-Maier K, Beck P, Kuhnt C, Draßner C, Deinzer A, Steinkasserer A, Wild AB. CD83 acts as immediate early response gene in activated macrophages and exhibits specific intracellular trafficking properties. Biochem Biophys Res Commun 2023; 647:37-46. [PMID: 36709671 DOI: 10.1016/j.bbrc.2023.01.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 01/20/2023] [Indexed: 01/24/2023]
Abstract
Macrophages (MΦ) are remarkably plastic cells, which assume phenotypes in every shade between a pro-inflammatory classical activation, and anti-inflammatory or resolving activation. Therefore, elucidation of mechanisms involved in shaping MΦ plasticity and function is key to understand their role during immunological balance. The immune-modulating CD83 molecule is expressed on activated immune cells and various tissue resident MΦ, rendering it an interesting candidate for affecting MΦ biology. However, in-depth analyses of the precise kinetics and trafficking of CD83 within pro-inflammatory, LPS activated bone-marrow-derived MΦ have not been performed. In this study, we show that activation with LPS leads to a very fast and strong, but transient increase of CD83 expression on these cells. Its expression peaks within 2 h of stimulation and is thereby faster than the early activation antigen CD69. To trace the CD83 trafficking through MΦs, we employed multiple inhibitors, thereby revealing a de novo synthesis and transport of the protein to the cell surface followed by lysosomal degradation, all within 6 h. Moreover, we found a similar expression kinetic and trafficking in human monocyte derived MΦ. This places CD83 at a very early point of MΦ activation suggesting an important role in decisions regarding the subsequent cellular fate.
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Affiliation(s)
- Pia Langguth
- Department of Immune Modulation, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
| | - Katrin Peckert-Maier
- Department of Immune Modulation, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Philipp Beck
- Department of Immune Modulation, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christine Kuhnt
- Department of Immune Modulation, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christina Draßner
- Department of Immune Modulation, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Andrea Deinzer
- Institute of Microbiology - Clinical Microbiology, Immunology and Hygiene, Universitätsklinikum Erlangen and Friedrich-Alexander -Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Alexander Steinkasserer
- Department of Immune Modulation, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Andreas B Wild
- Department of Immune Modulation, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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3
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The exquisite structural biophysics of the Golgi Reassembly and Stacking Proteins. Int J Biol Macromol 2020; 164:3632-3644. [DOI: 10.1016/j.ijbiomac.2020.08.203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/20/2020] [Accepted: 08/26/2020] [Indexed: 12/13/2022]
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Barreda D, Ramón-Luing LA, Duran-Luis O, Bobadilla K, Chacón-Salinas R, Santos-Mendoza T. Scrib and Dlg1 polarity proteins regulate Ag presentation in human dendritic cells. J Leukoc Biol 2020; 108:883-893. [PMID: 32293058 DOI: 10.1002/jlb.4ma0320-544rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 12/27/2022] Open
Abstract
We recently reported, for the first time, the expression and regulation of the PDZ polarity proteins Scrib and Dlg1 in human APCs, and also described the viral targeting of these proteins by NS1 of influenza A virus in human dendritic cells (DCs). Scrib plays an important role in reactive oxygen species (ROS) production in Mϕs and uropod formation and migration in T cells, while Dlg1 is important for T cell downstream activation after Ag recognition. Nevertheless, the functions of these proteins in human DCs remain unknown. Here, we knocked-down the expression of both Scrib and Dlg1 in human DCs and then evaluated the expression of co-stimulatory molecules and cytokine production during maturation. We demonstrated that Scrib is necessary for adequate CD86 expression, while Dlg1 is important for CD83 up-regulation and IL-6 production upon maturation, suggesting that Scrib and Dlg1 participate in separate pathways in DCs. Additionally, both proteins are required for adequate IL-12 production after maturation. Furthermore, we showed that the inefficient maturation of DCs induced by Scrib or Dlg1 depletion leads to impaired T cell activation. Our results revealed the previously unknown contribution of Scrib and Dlg1 in human DCs pivotal functions, which may be able to impact innate and adaptive immune response.
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Affiliation(s)
- Dante Barreda
- Laboratory of Autoimmunity, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, ENCB-IPN, Ciudad de México, México
| | - Lucero A Ramón-Luing
- Laboratory of Integrative Immunology, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Olivia Duran-Luis
- Laboratory of Autoimmunity, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Karen Bobadilla
- Department of Immunology, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Rommel Chacón-Salinas
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, ENCB-IPN, Ciudad de México, México
| | - Teresa Santos-Mendoza
- Laboratory of Autoimmunity, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
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5
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Wu H, Li T, Zhao J. GRASP55: A Multifunctional Protein. Curr Protein Pept Sci 2020; 21:544-552. [DOI: 10.2174/1389203721666200218105302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/15/2019] [Accepted: 12/16/2019] [Indexed: 12/26/2022]
Abstract
GRASP55 was first found as Golgi cisternae stacking protein. Due to the crucial role of
Golgi in vesicular trafficking and protein modification, GRASP55 was found to function in these two
aspects. Further investigation revealed that GRASP55 also participates in the unconventional secretory
pathway under stress. Moreover, GRASP55 is involved in autophagy initiation and autophagosome
maturation, as well as cell activity.
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Affiliation(s)
- Hongrong Wu
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang, China
| | - Tianjiao Li
- Hengyang Medical College, University of South China, Hengyang, China
| | - Jianfeng Zhao
- Institute of Neuroscience, Hengyang Medical College, University of South China, Hengyang, China
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6
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Wang H, Xu L, Wu Z, Chen X. CCR7, CD80/86 and CD83 in yellow catfish (Pelteobagrus fulvidraco): Molecular characteristics and expression patterns with bacterial infection. FISH & SHELLFISH IMMUNOLOGY 2020; 102:228-242. [PMID: 32325216 DOI: 10.1016/j.fsi.2020.04.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 03/25/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
Dendritic cells (DCs) have a strong ability to stimulate naive T lymphocyte proliferation, so DCs play an important regulatory role in the initiation of the specific immune response. DCs cannot play the role of antigen presentation without the expression of surface molecules. The chemokine receptor CCR7 and the costimulatory molecules CD80/86 and CD83 are not only markers of DC maturation but also important functional molecules in the immune response of DC-T cells. In this study, partial cDNA sequences of CCR7, CD80/86 and CD83 were obtained by rapid amplification of cDNA ends (RACE) technology from yellow catfish. Bioinformatics analysis of deduced amino acid sequences of these three genes showed that CCR7, CD80/86 and CD83 genes in yellow catfish have similar functional domains to the homologs in other vertebrates, which indicated that the functions of these genes may be somewhat conserved during the evolution process. Afterward, the expression characteristics of these three genes in different tissues were detected by q-PCR. This result indicated that CCR7, CD80/86 and CD83 were expressed in all examined tissues, and the highest expression levels of CCR7 and CD80/86 and CD83 were detected in the trunk kidney, muscle and midgut, respectively. Meanwhile, the expression levels of CCR7 and CD80/86 were lowest in the gill, and the expression of CD83 was lowest in the stomach. Finally, healthy yellow catfish were infected with A.hydrophila (1.0 × 107 CFU/mL) or E.ictaluri (1.0 × 106 CFU/mL), q-PCR results indicated that both pathogenic bacteria can induce significant upregulation of CCR7, CD80/86 and CD83 in immune organs, and the expression levels of these genes in the intestine were higher than those in the skin and gill. Our results in this study provide a molecular basis for exploring the role of CCR7, CD80/86 and CD83 in the immune responses induced by bacteria, and can help us to understand the difference of immune responses induced by extracellular and intracellular bacteria.
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Affiliation(s)
- Hui Wang
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, 430070, China
| | - Lili Xu
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China
| | - Zhixin Wu
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, 430070, China
| | - Xiaoxuan Chen
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, China.
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Grosche L, Knippertz I, König C, Royzman D, Wild AB, Zinser E, Sticht H, Muller YA, Steinkasserer A, Lechmann M. The CD83 Molecule - An Important Immune Checkpoint. Front Immunol 2020; 11:721. [PMID: 32362900 PMCID: PMC7181454 DOI: 10.3389/fimmu.2020.00721] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 03/30/2020] [Indexed: 12/19/2022] Open
Abstract
The CD83 molecule has been identified to be expressed on numerous activated immune cells, including B and T lymphocytes, monocytes, dendritic cells, microglia, and neutrophils. Both isoforms of CD83, the membrane-bound as well as its soluble form are topic of intensive research investigations. Several studies revealed that CD83 is not a typical co-stimulatory molecule, but rather plays a critical role in controlling and resolving immune responses. Moreover, CD83 is an essential factor during the differentiation of T and B lymphocytes, and the development and maintenance of tolerance. The identification of its interaction partners as well as signaling pathways have been an enigma for the last decades. Here, we report the latest data on the expression, structure, and the signaling partners of CD83. In addition, we review the regulatory functions of CD83, including its striking modulatory potential to maintain the balance between tolerance versus inflammation during homeostasis or pathologies. These immunomodulatory properties of CD83 emphasize its exceptional therapeutic potential, which has been documented in specific preclinical disease models.
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Affiliation(s)
- Linda Grosche
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Ilka Knippertz
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christina König
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Dmytro Royzman
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Andreas B. Wild
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Elisabeth Zinser
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Heinrich Sticht
- Division of Bioinformatics, Institute of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Yves A. Muller
- Division of Biotechnology, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Alexander Steinkasserer
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Matthias Lechmann
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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8
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Bailly AL, Grenier JMP, Cartier-Michaud A, Bardin F, Balzano M, Goubard A, Lissitzky JC, De Grandis M, Mancini SJC, Serge A, Aurrand-Lions M. GRASP55 Is Dispensable for Normal Hematopoiesis but Necessary for Myc-Dependent Leukemic Growth. THE JOURNAL OF IMMUNOLOGY 2020; 204:2685-2696. [PMID: 32229537 DOI: 10.4049/jimmunol.1901124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 03/03/2020] [Indexed: 11/19/2022]
Abstract
Grasp55 is a ubiquitous Golgi stacking protein involved in autophagy, protein trafficking, and glucose deprivation sensing. The function of Grasp55 in protein trafficking has been attributed to its PDZ-mediated interaction with the C-terminal PDZ-binding motifs of protein cargos. We have recently shown that such an interaction occurs between Grasp55 and the adhesion molecule Jam-C, which plays a central role in stemness maintenance of hematopoietic and spermatogenic cells. Accordingly, we have found that Grasp55-deficient mice suffer from spermatogenesis defects similar to Jam-C knockout mice. However, whether Grasp55 is involved in the maintenance of immunohematopoietic homeostasis through regulation of protein transport and Jam-C expression remains unknown. In this study, we show that Grasp55 deficiency does not affect hematopoietic stem cell differentiation, engraftment, or mobilization, which are known to depend on expression of Grasp55-dependent protein cargos. In contrast, using an Myc-dependent leukemic model addicted to autophagy, we show that knockdown of Grasp55 in leukemic cells reduces spleen and bone marrow tumor burden upon i.v. leukemic engraftment. This is not due to reduced homing of Grasp55-deficient cells to these organs but to increased spontaneous apoptosis of Grasp55-deficient leukemic cells correlated with increased sensitivity of the cells to glucose deprivation. These results show that Grasp55 plays a role in Myc-transformed hematopoietic cells but not in normal hematopoietic cells in vivo.
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Affiliation(s)
- Anne-Laure Bailly
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
| | - Julien M P Grenier
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
| | - Amandine Cartier-Michaud
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
| | - Florence Bardin
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
| | - Marielle Balzano
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
| | - Armelle Goubard
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
| | - Jean-Claude Lissitzky
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
| | - Maria De Grandis
- Etablissement Français du Sang PACA Corse, Biologie des Groupes Sanguins, UMR 7268, Aix Marseille Université, CNRS, Marseille 13005, France
| | - Stéphane J C Mancini
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
| | - Arnauld Serge
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
| | - Michel Aurrand-Lions
- Equipe Labellisée Ligue contre le Cancer, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, Cancerology Research Center of Marseille, Marseille 13009, France; and
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9
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Yokoyama-Kokuryo W, Yamazaki H, Takeuchi T, Amano K, Kikuchi J, Kondo T, Nakamura S, Sakai R, Hirano F, Nanki T, Koike R, Harigai M. Identification of molecules associated with response to abatacept in patients with rheumatoid arthritis. Arthritis Res Ther 2020; 22:46. [PMID: 32164778 PMCID: PMC7068901 DOI: 10.1186/s13075-020-2137-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 02/21/2020] [Indexed: 12/20/2022] Open
Abstract
Background Abatacept (ABA) is a biological disease-modifying antirheumatic drug (bDMARD) for rheumatoid arthritis (RA). The aim of this study was to identify molecules that are associated with therapeutic responses to ABA in patients with RA. Methods Peripheral blood was collected using a PAX gene Blood RNA kit from 45 bDMARD-naïve patients with RA at baseline and at 6 months after the initiation of ABA treatment. Gene expression levels of responders (n = 27) and non-responders (n = 8) to ABA treatment among patients with RA at baseline were compared using a microarray. The gene expression levels were confirmed using real-time quantitative polymerase chain reaction (RT-qPCR). Results Gene expression analysis revealed that the expression levels of 218 genes were significantly higher and those of 392 genes were significantly lower in the responders compared to the non-responders. Gene ontology analysis of the 218 genes identified “response to type I interferon (IFN)” with 24 type I IFN-related genes. RT-qPCR confirmed that there was a strong correlation between the score calculated using the 24 genes and that using OAS3, MX1, and IFIT3 (type I IFN score) (rho with the type I IFN score 0.981); the type I IFN score was significantly decreased after treatment with ABA in the responders (p < 0.05), but not in the non-responders. The receiver operating characteristic curve analysis of the type I IFN score showed that sensitivity, specificity, and AUC (95% confidence interval) for the responders were 0.82, 1.00, and 0.92 (0.82–1.00), respectively. Further, RT-qPCR demonstrated higher expression levels of BATF2, LAMP3, CD83, CLEC4A, IDO1, IRF7, STAT1, STAT2, and TNFSF10 in the responders, all of which are dendritic cell-related genes or type I IFN-related genes with significant biological implications. Conclusion Type I IFN score and expression levels of the nine genes may serve as novel biomarkers associated with a clinical response to ABA in patients with RA.
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Affiliation(s)
- Waka Yokoyama-Kokuryo
- Department of Rheumatology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Department of Pharmacovigilance, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Department of Rheumatology, Japan Organization of Occupational Health and Safety Chubu Rosai Hospital, 1-10-6 Koumei, Minato-ku, Nagoya-City, Aichi, Japan
| | - Hayato Yamazaki
- Department of Rheumatology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Department of Pharmacovigilance, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Tsutomu Takeuchi
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Koichi Amano
- Department of Rheumatology and Clinical Immunology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe-shi, Saitama, 350-8550, Japan
| | - Jun Kikuchi
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tsuneo Kondo
- Department of Rheumatology and Clinical Immunology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe-shi, Saitama, 350-8550, Japan
| | - Seiji Nakamura
- DNA Chip Research Inc, 1-15-1 Kaigan, Minato-ku, Tokyo, 105-0022, Japan
| | - Ryoko Sakai
- Department of Pharmacovigilance, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Department of Rheumatology, Tokyo Women's Medical University School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Fumio Hirano
- Department of Rheumatology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Department of Pharmacovigilance, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Toshihiro Nanki
- Department of Rheumatology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Department of Pharmacovigilance, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Division of Rheumatology, Department of Internal Medicine, Toho University School of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Ryuji Koike
- Department of Rheumatology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Department of Pharmacovigilance, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Masayoshi Harigai
- Department of Rheumatology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan. .,Department of Pharmacovigilance, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan. .,Department of Rheumatology, Tokyo Women's Medical University School of Medicine, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
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10
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Mendes LFS, Batista MRB, Judge PJ, Watts A, Redfield C, Costa-Filho AJ. Conformational flexibility of GRASPs and their constituent PDZ subdomains reveals structural basis of their promiscuous interactome. FEBS J 2020; 287:3255-3272. [PMID: 31920006 DOI: 10.1111/febs.15206] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 11/19/2019] [Accepted: 01/08/2020] [Indexed: 01/04/2023]
Abstract
The Golgi complex is a central component of the secretory pathway, responsible for several critical cellular functions in eukaryotes. The complex is organized by the Golgi matrix that includes the Golgi reassembly and stacking protein (GRASP), which was shown to be involved in cisternae stacking and lateral linkage in metazoan. GRASPs also have critical roles in other processes, with an unusual ability to interact with several different binding partners. The conserved N terminus of the GRASP family includes two PSD-95, DLG, and ZO-1 (PDZ) domains. Previous crystallographic studies of orthologues suggest that PDZ1 and PDZ2 have similar conformations and secondary structure content. However, PDZ1 alone mediates nearly all interactions between GRASPs and their partners. In this work, NMR, synchrotron radiation CD, and molecular dynamics (MD) were used to examine the structure, flexibility, and stability of the two constituent PDZ domains. GRASP PDZs are structured in an unusual β3 α1 β4 β5 α2 β6 β1 β2 secondary structural arrangement and NMR data indicate that the PDZ1 binding pocket is formed by a stable β2 -strand and a more flexible and unstable α2 -helix, suggesting an explanation for the higher PDZ1 promiscuity. The conformational free energy profiles of the two PDZ domains were calculated using MD simulations. The data suggest that, after binding, the protein partner significantly reduces the conformational space that GRASPs can access by stabilizing one particular conformation, in a partner-dependent fashion. The structural flexibility of PDZ1, modulated by PDZ2, and the coupled, coordinated movement between the two PDZs enable GRASPs to interact with multiple partners, allowing them to function as promiscuous, multitasking proteins.
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Affiliation(s)
- Luis Felipe S Mendes
- Molecular Biophysics Laboratory, Ribeirão Preto School of Philosophy, Sciences and Literature, Physics Department, University of São Paulo, Ribeirão Preto, Brazil.,Department of Biochemistry, University of Oxford, UK
| | - Mariana R B Batista
- Molecular Biophysics Laboratory, Ribeirão Preto School of Philosophy, Sciences and Literature, Physics Department, University of São Paulo, Ribeirão Preto, Brazil
| | - Peter J Judge
- Department of Biochemistry, University of Oxford, UK
| | - Anthony Watts
- Department of Biochemistry, University of Oxford, UK
| | | | - Antonio J Costa-Filho
- Molecular Biophysics Laboratory, Ribeirão Preto School of Philosophy, Sciences and Literature, Physics Department, University of São Paulo, Ribeirão Preto, Brazil
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11
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Li Z, Ju X, Silveira PA, Abadir E, Hsu WH, Hart DNJ, Clark GJ. CD83: Activation Marker for Antigen Presenting Cells and Its Therapeutic Potential. Front Immunol 2019; 10:1312. [PMID: 31231400 PMCID: PMC6568190 DOI: 10.3389/fimmu.2019.01312] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/23/2019] [Indexed: 12/17/2022] Open
Abstract
CD83 is a member of the immunoglobulin (Ig) superfamily and is expressed in membrane bound or soluble forms. Membrane CD83 (mCD83) can be detected on a variety of activated immune cells, although it is most highly and stably expressed by mature dendritic cells (DC). mCD83 regulates maturation, activation and homeostasis. Soluble CD83 (sCD83), which is elevated in the serum of patients with autoimmune disease and some hematological malignancies is reported to have an immune suppressive function. While CD83 is emerging as a promising immune modulator with therapeutic potential, some important aspects such as its ligand/s, intracellular signaling pathways and modulators of its expression are unclear. In this review we discuss the recent biological findings and the potential clinical value of CD83 based therapeutics in various conditions including autoimmune disease, graft-vs.-host disease, transplantation and hematological malignancies.
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Affiliation(s)
- Ziduo Li
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Xinsheng Ju
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Pablo A. Silveira
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Edward Abadir
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Wei-Hsun Hsu
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Derek N. J. Hart
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Georgina J. Clark
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
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12
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Wong KY, Baron R, Seldon TA, Jones ML, Rice AM, Munster DJ. CD83 Antibody Inhibits Human B Cell Responses to Antigen as well as Dendritic Cell-Mediated CD4 T Cell Responses. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2018; 200:3383-3396. [PMID: 29643191 DOI: 10.4049/jimmunol.1700064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 03/20/2018] [Indexed: 01/11/2023]
Abstract
Anti-CD83 Ab capable of Ab-dependent cellular cytotoxicity can deplete activated CD83+ human dendritic cells, thereby inhibiting CD4 T cell-mediated acute graft-versus-host disease. As CD83 is also expressed on the surface of activated B lymphocytes, we hypothesized that anti-CD83 would also inhibit B cell responses to stimulation. We found that anti-CD83 inhibited total IgM and IgG production in vitro by allostimulated human PBMC. Also, Ag-specific Ab responses to immunization of SCID mice xenografted with human PBMC were inhibited by anti-CD83 treatment. This inhibition occurred without depletion of all human B cells because anti-CD83 lysed activated CD83+ B cells by Ab-dependent cellular cytotoxicity and spared resting (CD83-) B cells. In cultured human PBMC, anti-CD83 inhibited tetanus toxoid-stimulated B cell proliferation and concomitant dendritic cell-mediated CD4 T cell proliferation and expression of IFN-γ and IL-17A, with minimal losses of B cells (<20%). In contrast, the anti-CD20 mAb rituximab depleted >80% of B cells but had no effect on CD4 T cell proliferation and cytokine expression. By virtue of the ability of anti-CD83 to selectively deplete activated, but not resting, B cells and dendritic cells, with the latter reducing CD4 T cell responses, anti-CD83 may be clinically useful in autoimmunity and transplantation. Advantages might include inhibited expansion of autoantigen- or alloantigen-specific B cells and CD4 T cells, thus preventing further production of pathogenic Abs and inflammatory cytokines while preserving protective memory and regulatory cells.
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Affiliation(s)
- Kuan Y Wong
- Mater Research Institute, University of Queensland, Brisbane, Queensland 4102, Australia; and
| | - Rebecca Baron
- Mater Research Institute, University of Queensland, Brisbane, Queensland 4102, Australia; and
| | - Therese A Seldon
- Mater Research Institute, University of Queensland, Brisbane, Queensland 4102, Australia; and
| | - Martina L Jones
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Alison M Rice
- Mater Research Institute, University of Queensland, Brisbane, Queensland 4102, Australia; and
| | - David J Munster
- Mater Research Institute, University of Queensland, Brisbane, Queensland 4102, Australia; and
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13
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Huang S, Wang Y. Golgi structure formation, function, and post-translational modifications in mammalian cells. F1000Res 2017; 6:2050. [PMID: 29225785 PMCID: PMC5710388 DOI: 10.12688/f1000research.11900.1] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/20/2017] [Indexed: 01/04/2023] Open
Abstract
The Golgi apparatus is a central membrane organelle for trafficking and post-translational modifications of proteins and lipids in cells. In mammalian cells, it is organized in the form of stacks of tightly aligned flattened cisternae, and dozens of stacks are often linked laterally into a ribbon-like structure located in the perinuclear region of the cell. Proper Golgi functionality requires an intact architecture, yet Golgi structure is dynamically regulated during the cell cycle and under disease conditions. In this review, we summarize our current understanding of the relationship between Golgi structure formation, function, and regulation, with focus on how post-translational modifications including phosphorylation and ubiquitination regulate Golgi structure and on how Golgi unstacking affects its functions, in particular, protein trafficking, glycosylation, and sorting in mammalian cells.
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Affiliation(s)
- Shijiao Huang
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Yanzhuang Wang
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
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14
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Chen X, Zhang Q, Bai J, Zhao Y, Wang X, Wang H, Jiang P. The Nucleocapsid Protein and Nonstructural Protein 10 of Highly Pathogenic Porcine Reproductive and Respiratory Syndrome Virus Enhance CD83 Production via NF-κB and Sp1 Signaling Pathways. J Virol 2017; 91:e00986-17. [PMID: 28659471 PMCID: PMC5571251 DOI: 10.1128/jvi.00986-17] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 06/14/2017] [Indexed: 12/31/2022] Open
Abstract
Porcine reproductive and respiratory syndrome, caused by porcine reproductive and respiratory syndrome virus (PRRSV), is a panzootic disease that is one of the most economically costly diseases to the swine industry. A key aspect of PRRSV virulence is that the virus suppresses the innate immune response and induces persistent infection, although the underlying mechanisms are not well understood. The dendritic cell (DC) marker CD83 belongs to the immunoglobulin superfamily and is associated with DC activation and immunosuppression of T cell proliferation when expressed as soluble CD83 (sCD83). In this study, we show that PRRSV infection strongly stimulates CD83 expression in porcine monocyte-derived DCs (MoDCs) and that the nucleocapsid (N) protein and nonstructural protein 10 (nsp10) of PRRSV enhance CD83 promoter activity via the NF-κB and Sp1 signaling pathways. R43A and K44A amino acid substitution mutants of the N protein suppress the N protein-mediated increase of CD83 promoter activity. Similarly, P192-5A and G214-3A mutants of nsp10 (with 5 and 3 alanine substitutions beginning at residues P192 and G214, respectively) abolish the nsp10-mediated induction of the CD83 promoter. Using reverse genetics, four mutant viruses (rR43A, rK44A, rP192-5A, and rG214-3A) and four revertants [rR43A(R), rK44A(R), rP192-5A(R), and rG214-3A(R)] were generated. Decreased induction of CD83 in MoDCs was observed after infection by mutants rR43A, rK44A, rP192-5A, and rG214-3A, in contrast to the results obtained using rR43A(R), rK44A(R), rP192-5A(R), and rG214-3A(R). These findings suggest that PRRSV N and nsp10 play important roles in modulating CD83 signaling and shed light on the mechanism by which PRRSV modulates host immunity.IMPORTANCE Porcine reproductive and respiratory syndrome virus (PRRSV) is one of the most economically costly pathogens affecting the swine industry. It is unclear how PRRSV inhibits the host's immune response and induces persistent infection. The dendritic cell (DC) marker CD83 belongs to the immunoglobulin superfamily and has previously been associated with DC activation and immunosuppression of T cell proliferation and differentiation when expressed as soluble CD83 (sCD83). In this study, we found that PRRSV infection induces sCD83 expression in porcine MoDCs via the NF-κB and Sp1 signaling pathways. The viral nucleocapsid protein, nonstructural protein 1 (nsp1), and nsp10 were shown to enhance CD83 promoter activity. Amino acids R43 and K44 of the N protein, as well as residues 192 to 196 (P192-5) and 214 to 216 (G214-3) of nsp10, play important roles in CD83 promoter activation. These findings provide new insights into the molecular mechanism of immune suppression by PRRSV.
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Affiliation(s)
- Xi Chen
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Qiaoya Zhang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Juan Bai
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yongxiang Zhao
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xianwei Wang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Haiyan Wang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Ping Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
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15
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Cartier-Michaud A, Bailly AL, Betzi S, Shi X, Lissitzky JC, Zarubica A, Sergé A, Roche P, Lugari A, Hamon V, Bardin F, Derviaux C, Lembo F, Audebert S, Marchetto S, Durand B, Borg JP, Shi N, Morelli X, Aurrand-Lions M. Genetic, structural, and chemical insights into the dual function of GRASP55 in germ cell Golgi remodeling and JAM-C polarized localization during spermatogenesis. PLoS Genet 2017; 13:e1006803. [PMID: 28617811 PMCID: PMC5472279 DOI: 10.1371/journal.pgen.1006803] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 05/05/2017] [Indexed: 01/01/2023] Open
Abstract
Spermatogenesis is a dynamic process that is regulated by adhesive interactions between germ and Sertoli cells. Germ cells express the Junctional Adhesion Molecule-C (JAM-C, encoded by Jam3), which localizes to germ/Sertoli cell contacts. JAM-C is involved in germ cell polarity and acrosome formation. Using a proteomic approach, we demonstrated that JAM-C interacted with the Golgi reassembly stacking protein of 55 kDa (GRASP55, encoded by Gorasp2) in developing germ cells. Generation and study of Gorasp2-/- mice revealed that knock-out mice suffered from spermatogenesis defects. Acrosome formation and polarized localization of JAM-C in spermatids were altered in Gorasp2-/- mice. In addition, Golgi morphology of spermatocytes was disturbed in Gorasp2-/- mice. Crystal structures of GRASP55 in complex with JAM-C or JAM-B revealed that GRASP55 interacted via PDZ-mediated interactions with JAMs and induced a conformational change in GRASP55 with respect of its free conformation. An in silico pharmacophore approach identified a chemical compound called Graspin that inhibited PDZ-mediated interactions of GRASP55 with JAMs. Treatment of mice with Graspin hampered the polarized localization of JAM-C in spermatids, induced the premature release of spermatids and affected the Golgi morphology of meiotic spermatocytes.
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Affiliation(s)
| | - Anne-Laure Bailly
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Stéphane Betzi
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Xiaoli Shi
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
| | | | - Ana Zarubica
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Arnauld Sergé
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Philippe Roche
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Adrien Lugari
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Véronique Hamon
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Florence Bardin
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Carine Derviaux
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Frédérique Lembo
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Stéphane Audebert
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Sylvie Marchetto
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Bénédicte Durand
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5310, INSERM U1217, Institut NeuroMyoGène, Lyon, France
| | - Jean-Paul Borg
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Ning Shi
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
| | - Xavier Morelli
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Michel Aurrand-Lions
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
- * E-mail:
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16
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Zhao J, Li B, Huang X, Morelli X, Shi N. Structural Basis for the Interaction between Golgi Reassembly-stacking Protein GRASP55 and Golgin45. J Biol Chem 2017; 292:2956-2965. [PMID: 28049725 DOI: 10.1074/jbc.m116.765990] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/13/2016] [Indexed: 11/06/2022] Open
Abstract
Golgin45 is required for normal Golgi structure and the transportation of protein from the ER. It forms a specific complex with GRASP55 in vivo Little is known regarding the molecular details of this interaction and its structural role in stacking of the Golgi complex. Here, we present the crystal structure of the GRASP domains of GRASP55 in complex with the Golgin45 C-terminal peptide, determined at 1.33 Å resolution. Similar to the structure of GRASP65 bound to GM130 reported recently, this structure reveals more than one interacting site and involves both PDZ1 and PDZ2 domains of the GRASP simultaneously. The C-terminal peptides of Golgin45 and GM130 present a conserved PDZ domain binding motif sequence and recognize the canonical PDZ-peptide binding groove of the PDZ1 domains of GRASP55 and GRASP65. A main difference in this recognition process resides in a structural rearrangement of GRASP65-GM130 that does not occur for the GRASP55-Golgin45 complex. The binding site at the cleft between the PDZ1 and PDZ2 domains of GRASP65 is dominated by hydrophobic interactions with GM130 that are not observed in the GRASP55-Golgin45 complex. In addition, a unique zinc finger structure is revealed in the GRASP55-Golgin45 complex crystal structure. Mutagenesis experiments support these structural observations and demonstrate that two of these sites are required to form a stable complex. Finally, a novel Golgi stacking model is proposed according to these structural findings.
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Affiliation(s)
- Jianfeng Zhao
- From the State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China and
| | - Bowen Li
- From the State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China and
| | - Xiaochen Huang
- From the State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China and
| | - Xavier Morelli
- the Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM, CNRS, Aix-Marseille Université, Institut Paoli-Calmettes, 13009 Marseille, France
| | - Ning Shi
- From the State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China and
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17
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Ju X, Silveira PA, Hsu WH, Elgundi Z, Alingcastre R, Verma ND, Fromm PD, Hsu JL, Bryant C, Li Z, Kupresanin F, Lo TH, Clarke C, Lee K, McGuire H, Fazekas de St Groth B, Larsen SR, Gibson J, Bradstock KF, Clark GJ, Hart DNJ. The Analysis of CD83 Expression on Human Immune Cells Identifies a Unique CD83+-Activated T Cell Population. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2016; 197:4613-4625. [PMID: 27837105 DOI: 10.4049/jimmunol.1600339] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 10/10/2016] [Indexed: 02/02/2023]
Abstract
CD83 is a member of the Ig gene superfamily, first identified in activated lymphocytes. Since then, CD83 has become an important marker for defining activated human dendritic cells (DC). Several potential CD83 mRNA isoforms have been described, including a soluble form detected in human serum, which may have an immunosuppressive function. To further understand the biology of CD83, we examined its expression in different human immune cell types before and after activation using a panel of mouse and human anti-human CD83 mAb. The mouse anti-human CD83 mAbs, HB15a and HB15e, and the human anti-human CD83 mAb, 3C12C, were selected to examine cytoplasmic and surface CD83 expression, based on their different binding characteristics. Glycosylation of CD83, the CD83 mRNA isoforms, and soluble CD83 released differed among blood DC, monocytes, and monocyte-derived DC, and other immune cell types. A small T cell population expressing surface CD83 was identified upon T cell stimulation and during allogeneic MLR. This subpopulation appeared specifically during viral Ag challenge. We did not observe human CD83 on unstimulated human natural regulatory T cells (Treg), in contrast to reports describing expression of CD83 on mouse Treg. CD83 expression was increased on CD4+, CD8+ T, and Treg cells in association with clinical acute graft-versus-host disease in allogeneic hematopoietic cell transplant recipients. The differential expression and function of CD83 on human immune cells reveal potential new roles for this molecule as a target of therapeutic manipulation in transplantation, inflammation, and autoimmune diseases.
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Affiliation(s)
- Xinsheng Ju
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
| | - Pablo A Silveira
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Wei-Hsun Hsu
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Zehra Elgundi
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
| | - Renz Alingcastre
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
| | - Nirupama D Verma
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
| | - Phillip D Fromm
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Jennifer L Hsu
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
- Institute of Haematology, Royal Prince Alfred Hospital, University of Sydney, Sydney, New South Wales 2050, Australia
| | - Christian Bryant
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
- Institute of Haematology, Royal Prince Alfred Hospital, University of Sydney, Sydney, New South Wales 2050, Australia
| | - Ziduo Li
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Fiona Kupresanin
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
| | - Tsun-Ho Lo
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Candice Clarke
- Anatomical Pathology Department, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia; and
| | - Kenneth Lee
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
- Anatomical Pathology Department, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia; and
| | - Helen McGuire
- Centenary Institute, Royal Prince Alfred Hospital, Sydney, New South Wales 2050, Australia
| | | | - Stephen R Larsen
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
- Institute of Haematology, Royal Prince Alfred Hospital, University of Sydney, Sydney, New South Wales 2050, Australia
| | - John Gibson
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
- Institute of Haematology, Royal Prince Alfred Hospital, University of Sydney, Sydney, New South Wales 2050, Australia
| | - Kenneth F Bradstock
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Georgina J Clark
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Derek N J Hart
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, New South Wales 2139, Australia;
- Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
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18
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Zhang X, Wang Y. GRASPs in Golgi Structure and Function. Front Cell Dev Biol 2016; 3:84. [PMID: 26779480 PMCID: PMC4701983 DOI: 10.3389/fcell.2015.00084] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 12/14/2015] [Indexed: 12/26/2022] Open
Abstract
The Golgi apparatus is a central intracellular membrane organelle for trafficking and modification of proteins and lipids. Its basic structure is a stack of tightly aligned flat cisternae. In mammalian cells, dozens of stacks are concentrated in the pericentriolar region and laterally connected to form a ribbon. Despite extensive research in the last decades, how this unique structure is formed and why its formation is important for proper Golgi functioning remain largely unknown. The Golgi ReAssembly Stacking Proteins, GRASP65, and GRASP55, are so far the only proteins shown to function in Golgi stacking. They are peripheral membrane proteins on the cytoplasmic face of the Golgi cisternae that form trans-oligomers through their N-terminal GRASP domain, and thereby function as the “glue” to stick adjacent cisternae together into a stack and to link Golgi stacks into a ribbon. Depletion of GRASPs in cells disrupts the Golgi structure and results in accelerated protein trafficking and defective glycosylation. In this minireview we summarize our current knowledge on how GRASPs function in Golgi structure formation and discuss why Golgi structure formation is important for its function.
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Affiliation(s)
- Xiaoyan Zhang
- Department of Molecular, Cellular and Developmental Biology, University of Michigan Ann Arbor, MI, USA
| | - Yanzhuang Wang
- Department of Molecular, Cellular and Developmental Biology, University of MichiganAnn Arbor, MI, USA; Department of Neurology, University of Michigan School of MedicineAnn Arbor, MI, USA
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