1
|
Tetraspanin 8 Subfamily Members Regulate Substrate-Specificity of a Disintegrin and Metalloprotease 17. Cells 2022; 11:cells11172683. [PMID: 36078095 PMCID: PMC9454446 DOI: 10.3390/cells11172683] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/09/2022] [Indexed: 12/04/2022] Open
Abstract
Ectodomain shedding is an irreversible process to regulate inter- and intracellular signaling. Members of the a disintegrin and metalloprotease (ADAM) family are major mediators of ectodomain shedding. ADAM17 is involved in the processing of multiple substrates including tumor necrosis factor (TNF) α and EGF receptor ligands. Substrates of ADAM17 are selectively processed depending on stimulus and cellular context. However, it still remains largely elusive how substrate selectivity of ADAM17 is regulated. Tetraspanins (Tspan) are multi-membrane-passing proteins that are involved in the organization of plasma membrane micro-domains and diverse biological processes. Closely related members of the Tspan8 subfamily, including CD9, CD81 and Tspan8, are associated with cancer and metastasis. Here, we show that Tspan8 subfamily members use different strategies to regulate ADAM17 substrate selectivity. We demonstrate that in particular Tspan8 associates with both ADAM17 and TNF α and promotes ADAM17-mediated TNF α release through recruitment of ADAM17 into Tspan-enriched micro-domains. Yet, processing of other ADAM17 substrates is not altered by Tspan8. We, therefore, propose that Tspan8 contributes to tumorigenesis through enhanced ADAM17-mediated TNF α release and a resulting increase in tissue inflammation.
Collapse
|
2
|
Álvarez B, Revilla C, Moreno S, Jiménez-Marín Á, Ramos E, Martínez de la Riva P, Poderoso T, Garrido JJ, Ezquerra Á, Domínguez J. CD9 expression in porcine blood CD4 + T cells delineates two subsets with phenotypic characteristics of central and effector memory cells. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 133:104431. [PMID: 35526640 DOI: 10.1016/j.dci.2022.104431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/20/2022] [Accepted: 05/02/2022] [Indexed: 06/14/2023]
Abstract
In this report, we describe the characterization of a new monoclonal antibody, named 4H5CR4, against porcine CD9. Its use in combination with antibodies to CD4, CD8α, and 2E3 allows to distinguish at least five main CD4+ T cell subsets. Analysis on these subsets of CD45RA, CD27, CD29, CD95, CCR7, and SLA-DR markers depicts a progressive model of CD4+ T cell development. CD4+ 2E3+ CD8α- CD9- cells are the least differentiated population of naïve cells, whereas the CD4+ 2E3- CD8α+CD9+ and CD4+ 2E3- CD8α+ CD9- cells display phenotypic features of central and effector memory T helper cells, respectively. The latter subsets were able to produce IFN-γ after polyclonal activation with PMA/Ionomycin; however, in vitro virus-specific IFN-γ production of PBMCs collected at 38-44 days after pseudorabies virus vaccination was dominated by cells with a CD9+ phenotype. Therefore, CD9 appears to be a useful marker to investigate CD4+ T cell heterogeneity in swine.
Collapse
Affiliation(s)
- Belén Álvarez
- Departamento de Biotecnología, Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, 28040, Spain
| | - Concepción Revilla
- Departamento de Biotecnología, Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, 28040, Spain
| | - Sara Moreno
- Departamento de Biotecnología, Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, 28040, Spain
| | - Ángeles Jiménez-Marín
- Grupo de Inmunogenómica y Patogénesis Molecular (IMIBIC), Departamento de Genética, Universidad de Córdoba, Campus Universitario de Rabanales, 14014, Córdoba, Spain
| | - Elena Ramos
- Departamento de Biotecnología, Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, 28040, Spain
| | - Paloma Martínez de la Riva
- Departamento de Biotecnología, Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, 28040, Spain
| | - Teresa Poderoso
- Departamento de Biotecnología, Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, 28040, Spain
| | - Juan J Garrido
- Grupo de Inmunogenómica y Patogénesis Molecular (IMIBIC), Departamento de Genética, Universidad de Córdoba, Campus Universitario de Rabanales, 14014, Córdoba, Spain
| | - Ángel Ezquerra
- Departamento de Biotecnología, Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, 28040, Spain.
| | - Javier Domínguez
- Departamento de Biotecnología, Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, 28040, Spain
| |
Collapse
|
3
|
Eggert S, Kins S, Endres K, Brigadski T. Brothers in arms: proBDNF/BDNF and sAPPα/Aβ-signaling and their common interplay with ADAM10, TrkB, p75NTR, sortilin, and sorLA in the progression of Alzheimer's disease. Biol Chem 2022; 403:43-71. [PMID: 34619027 DOI: 10.1515/hsz-2021-0330] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 09/16/2021] [Indexed: 12/22/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) is an important modulator for a variety of functions in the central nervous system (CNS). A wealth of evidence, such as reduced mRNA and protein level in the brain, cerebrospinal fluid (CSF), and blood samples of Alzheimer's disease (AD) patients implicates a crucial role of BDNF in the progression of this disease. Especially, processing and subcellular localization of BDNF and its receptors TrkB and p75 are critical determinants for survival and death in neuronal cells. Similarly, the amyloid precursor protein (APP), a key player in Alzheimer's disease, and its cleavage fragments sAPPα and Aβ are known for their respective roles in neuroprotection and neuronal death. Common features of APP- and BDNF-signaling indicate a causal relationship in their mode of action. However, the interconnections of APP- and BDNF-signaling are not well understood. Therefore, we here discuss dimerization properties, localization, processing by α- and γ-secretase, relevance of the common interaction partners TrkB, p75, sorLA, and sortilin as well as shared signaling pathways of BDNF and sAPPα.
Collapse
Affiliation(s)
- Simone Eggert
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, D-67663 Kaiserslautern, Germany
| | - Stefan Kins
- Department of Human Biology and Human Genetics, University of Kaiserslautern, Erwin-Schrödinger-Str. 13, D-67663 Kaiserslautern, Germany
| | - Kristina Endres
- Department of Psychiatry and Psychotherapy, University Medical Center, Johannes Gutenberg-University Mainz, D-55131 Mainz, Germany
| | - Tanja Brigadski
- Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, D-66482 Zweibrücken, Germany
| |
Collapse
|
4
|
Cardeñes B, Clares I, Toribio V, Pascual L, López-Martín S, Torres-Gomez A, Sainz de la Cuesta R, Lafuente EM, López-Cabrera M, Yáñez-Mó M, Cabañas C. Cellular Integrin α5β1 and Exosomal ADAM17 Mediate the Binding and Uptake of Exosomes Produced by Colorectal Carcinoma Cells. Int J Mol Sci 2021; 22:ijms22189938. [PMID: 34576100 PMCID: PMC8471098 DOI: 10.3390/ijms22189938] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 09/10/2021] [Indexed: 12/13/2022] Open
Abstract
Approximately 25% of colorectal cancer (CRC) patients develop peritoneal metastasis, a condition associated with a bleak prognosis. The CRC peritoneal dissemination cascade involves the shedding of cancer cells from the primary tumor, their transport through the peritoneal cavity, their adhesion to the peritoneal mesothelial cells (PMCs) that line all peritoneal organs, and invasion of cancer cells through this mesothelial cell barrier and underlying stroma to establish new metastatic foci. Exosomes produced by cancer cells have been shown to influence many processes related to cancer progression and metastasis. In epithelial ovarian cancer these extracellular vesicles (EVs) have been shown to favor different steps of the peritoneal dissemination cascade by changing the functional phenotype of cancer cells and PMCs. Little is currently known, however, about the roles played by exosomes in the pathogenesis and peritoneal metastasis cascade of CRC and especially about the molecules that mediate their interaction and uptake by target PMCs and tumor cells. We isolated exosomes by size−exclusion chromatography from CRC cells and performed cell-adhesion assays to immobilized exosomes in the presence of blocking antibodies against surface proteins and measured the uptake of fluorescently-labelled exosomes. We report here that the interaction between integrin α5β1 on CRC cells (and PMCs) and its ligand ADAM17 on exosomes mediated the binding and uptake of CRC-derived exosomes. Furthermore, this process was negatively regulated by the expression of tetraspanin CD9 on exosomes.
Collapse
Affiliation(s)
- Beatriz Cardeñes
- Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), Cell-Cell Communication & Inflammation Unit, 28049 Madrid, Spain; (B.C.); (I.C.); (V.T.); (L.P.); (S.L.-M.); (M.L.-C.); (M.Y.-M.)
| | - Irene Clares
- Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), Cell-Cell Communication & Inflammation Unit, 28049 Madrid, Spain; (B.C.); (I.C.); (V.T.); (L.P.); (S.L.-M.); (M.L.-C.); (M.Y.-M.)
| | - Víctor Toribio
- Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), Cell-Cell Communication & Inflammation Unit, 28049 Madrid, Spain; (B.C.); (I.C.); (V.T.); (L.P.); (S.L.-M.); (M.L.-C.); (M.Y.-M.)
- Department of Molecular Biology, Faculty of Sciences, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Lucía Pascual
- Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), Cell-Cell Communication & Inflammation Unit, 28049 Madrid, Spain; (B.C.); (I.C.); (V.T.); (L.P.); (S.L.-M.); (M.L.-C.); (M.Y.-M.)
| | - Soraya López-Martín
- Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), Cell-Cell Communication & Inflammation Unit, 28049 Madrid, Spain; (B.C.); (I.C.); (V.T.); (L.P.); (S.L.-M.); (M.L.-C.); (M.Y.-M.)
- Department of Molecular Biology, Faculty of Sciences, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Alvaro Torres-Gomez
- Department of Immunology, Ophthalmology and Otorhinolaryngology, School of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.T.-G.); (E.M.L.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (i+12), 28041 Madrid, Spain
| | - Ricardo Sainz de la Cuesta
- Department of Obstetrics and Gynecology, Hospital Universitario Quironsalud Madrid, 28223 Madrid, Spain;
| | - Esther M. Lafuente
- Department of Immunology, Ophthalmology and Otorhinolaryngology, School of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.T.-G.); (E.M.L.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (i+12), 28041 Madrid, Spain
| | - Manuel López-Cabrera
- Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), Cell-Cell Communication & Inflammation Unit, 28049 Madrid, Spain; (B.C.); (I.C.); (V.T.); (L.P.); (S.L.-M.); (M.L.-C.); (M.Y.-M.)
| | - María Yáñez-Mó
- Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), Cell-Cell Communication & Inflammation Unit, 28049 Madrid, Spain; (B.C.); (I.C.); (V.T.); (L.P.); (S.L.-M.); (M.L.-C.); (M.Y.-M.)
- Department of Molecular Biology, Faculty of Sciences, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Instituto de Investigación Sanitaria Hospital La Princesa, 28006 Madrid, Spain
| | - Carlos Cabañas
- Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), Cell-Cell Communication & Inflammation Unit, 28049 Madrid, Spain; (B.C.); (I.C.); (V.T.); (L.P.); (S.L.-M.); (M.L.-C.); (M.Y.-M.)
- Department of Immunology, Ophthalmology and Otorhinolaryngology, School of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.T.-G.); (E.M.L.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (i+12), 28041 Madrid, Spain
- Correspondence: or ; Tel.: +34-911964513
| |
Collapse
|
5
|
VPS10P Domain Receptors: Sorting Out Brain Health and Disease. Trends Neurosci 2020; 43:870-885. [DOI: 10.1016/j.tins.2020.08.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/23/2020] [Accepted: 08/11/2020] [Indexed: 12/13/2022]
|
6
|
Mikuličić S, Fritzen A, Scheffer K, Strunk J, Cabañas C, Sperrhacke M, Reiss K, Florin L. Tetraspanin CD9 affects HPV16 infection by modulating ADAM17 activity and the ERK signalling pathway. Med Microbiol Immunol 2020; 209:461-471. [PMID: 32385608 PMCID: PMC7206579 DOI: 10.1007/s00430-020-00671-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/24/2020] [Indexed: 12/21/2022]
Abstract
Human papillomaviruses (HPV) are causative agents of various tumours such as cervical cancer. HPV binding to the cell surface of keratinocytes leads to virus endocytosis at tetraspanin enriched microdomains. Complex interactions of the capsid proteins with host proteins as well as ADAM17-dependent ERK1/2 signal transduction enable the entry platform assembly of the oncogenic HPV type 16. Here, we studied the importance of tetraspanin CD9, also known as TSPAN29, in HPV16 infection of different epithelial cells. We found that both overexpression and loss of the tetraspanin decreased infection rates in cells with low endogenous CD9 levels, while reduction of CD9 expression in keratinocytes that exhibit high-CD9 protein amounts, led to an increase of infection. Therefore, we concluded that low-CD9 supports infection. Moreover, we found that changes in CD9 amounts affect the shedding of the ADAM17 substrate transforming growth factor alpha (TGFα) and the downstream phosphorylation of ERK. These effects correlate with those on infection rates suggesting that a specific CD9 optimum promotes ADAM17 activity, ERK signalling and virus infection. Together, our findings implicate that CD9 regulates HPV16 infection through the modulation of ADAM17 sheddase activity.
Collapse
Affiliation(s)
- Snježana Mikuličić
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Obere Zahlbacher Strasse 67, Augustusplatz, 55131, Mainz, Germany
| | - Anna Fritzen
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Obere Zahlbacher Strasse 67, Augustusplatz, 55131, Mainz, Germany
| | - Konstanze Scheffer
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Obere Zahlbacher Strasse 67, Augustusplatz, 55131, Mainz, Germany
| | - Johannes Strunk
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Obere Zahlbacher Strasse 67, Augustusplatz, 55131, Mainz, Germany
- Max Planck Graduate Center, Mainz, Germany
| | - Carlos Cabañas
- Department of Cell Biology and Immunology, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), 28049, Madrid, Spain
- Department of Immunology, Ophthalmology and Otorhinolaryngology (IOO), Faculty of Medicine, Universidad Complutense, 28040, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - Maria Sperrhacke
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein Campus, Rosalind-Franklin-Straße 9, 24105, Kiel, Germany
| | - Karina Reiss
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein Campus, Rosalind-Franklin-Straße 9, 24105, Kiel, Germany
| | - Luise Florin
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Obere Zahlbacher Strasse 67, Augustusplatz, 55131, Mainz, Germany.
| |
Collapse
|
7
|
Ding W, Rivera OC, Kelleher SL, Soybel DI. Macrolets: Outsized Extracellular Vesicles Released from Lipopolysaccharide-Stimulated Macrophages that Trap and Kill Escherichia coli. iScience 2020; 23:101135. [PMID: 32442747 PMCID: PMC7240733 DOI: 10.1016/j.isci.2020.101135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 02/18/2020] [Accepted: 05/01/2020] [Indexed: 12/29/2022] Open
Abstract
Macrophages release a variety of extracellular vesicles (EVs). Here we describe a previously unreported class of EVs that are released from macrophages in response to Escherichia coli endotoxin, lipopolysaccharide (LPS), that we have named "macrolets" since they are extruded as large "droplets" released from macrophages. Morphologically, macrolets are anuclear, bounded by a single lipid membrane and structurally dependent on an actin cytoskeleton. Macrolets are enriched in tetraspanins and separable on this basis from their parent macrophages. Macrolets are distinguished from classic exosomes by their larger size (10–30 μm), discoid shape, and the presence of organelles. Macrolets are rich in both interleukin 6 (IL-6) and interleukin 6 receptor (IL-6R),and are capable of trapping and killing E. coli in association with production of reactive oxygen species. Our observations offer insights into the mechanisms by which macrophage activities may be amplified in sites of infection, inflammation, and healing. Macrolets, outsized extracellular vesicles, release from LPS-stimulated macrophages Macrolets are rich in tetraspanin proteins such as CD81, CD63, and CD9 Macrolets capture and internalize E. coli bacteria within acidic compartments Macrolets kill E. coli by a mechanism associated with production of ROS and superoxide
Collapse
Affiliation(s)
- Wei Ding
- Department of Surgery, Penn State College of Medicine and Milton S. Hershey Medical Center, Room# C4810, H149, 500 University Drive, Hershey, PA 17033, USA.
| | - Olivia C Rivera
- Department of Surgery, Penn State College of Medicine and Milton S. Hershey Medical Center, Room# C4810, H149, 500 University Drive, Hershey, PA 17033, USA; Department of Cellular & Molecular Physiology, Penn State Hershey College of Medicine, Hershey, PA 17033, USA
| | - Shannon L Kelleher
- Department of Biomedical & Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, MA 01852, USA
| | - David I Soybel
- Department of Surgery, Penn State College of Medicine and Milton S. Hershey Medical Center, Room# C4810, H149, 500 University Drive, Hershey, PA 17033, USA; Department of Cellular & Molecular Physiology, Penn State Hershey College of Medicine, Hershey, PA 17033, USA.
| |
Collapse
|
8
|
Status update on iRhom and ADAM17: It's still complicated. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:1567-1583. [PMID: 31330158 DOI: 10.1016/j.bbamcr.2019.06.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/26/2019] [Accepted: 06/28/2019] [Indexed: 02/06/2023]
Abstract
Several membrane-bound proteins with a single transmembrane domain are subjected to limited proteolysis at the cell surface. This cleavage leads to the release of their biologically active ectodomains, which can trigger different signalling pathways. In many cases, this ectodomain shedding is mediated by members of the family of a disintegrins and metalloproteinases (ADAMs). ADAM17 in particular is responsible for the cleavage of several proinflammatory mediators, growth factors, receptors and adhesion molecules. Due to its direct involvement in the release of these signalling molecules, ADAM17 can be positively and negatively involved in various physiological processes as well as in inflammatory, fibrotic and malignant pathologies. This central role of ADAM17 in a variety of processes requires strict multi-level regulation, including phosphorylation, various conformational changes and endogenous inhibitors. Recent research has shown that an early, crucial control mechanism is interaction with certain adapter proteins identified as iRhom1 and iRhom2, which are pseudoproteases of the rhomboid superfamily. Thus, iRhoms have also a decisive influence on physiological and pathophysiological signalling processes regulated by ADAM17. Their characteristic gene expression profiles, the specific consequences of gene knockouts and finally the occurrence of disease-associated mutations suggest that iRhom1 and iRhom2 undergo different gene regulation in order to fulfil their function in different cell types and are therefore only partially redundant. Therefore, there is not only interest in ADAM17, but also in iRhoms as therapeutic targets. However, to exploit the therapeutic potential, the regulation of ADAM17 activity and in particular its interaction with iRhoms must be well understood.
Collapse
|
9
|
Yano K, Hirayama S, Misawa N, Furuta A, Ueno T, Motoi Y, Seino U, Ebinuma H, Ikeuchi T, Schneider WJ, Bujo H, Miida T. Soluble LR11 competes with amyloid β in binding to cerebrospinal fluid-high-density lipoprotein. Clin Chim Acta 2018; 489:29-34. [PMID: 30448281 DOI: 10.1016/j.cca.2018.11.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 11/06/2018] [Accepted: 11/14/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND LR11 is a member of the low-density lipoprotein (LDL) receptor family with high expression in neurons. Some cell surface LR11 is cleaved and secreted into the cerebrospinal fluid (CSF) as soluble LR11 (sLR11). Patients with Alzheimer's disease (AD), particularly apolipoprotein E4 carriers, have high CSF-sLR11 and low CSF-amyloid β (Aβ) concentrations. Therefore, we assessed whether sLR11 is bound to CSF-high-density lipoprotein (HDL) and whether sLR11 competes with Aβ in binding to apoE in CSF-HDL. METHODS We measured CSF-sLR11 concentrations (50 controls and 16 patients with AD) using enzyme immunoassay. sLR11 and apoE distribution in the CSF was evaluated using non-denaturing two-dimensional gel electrophoresis (N-2DGE). ApoE bound to sLR11 or Aβ was identified using co-immunoprecipitation assay. RESULTS CSF-sLR11 concentrations were higher in patients with AD than controls (adjusted for sLR11 using phospholipid). N-2DGE analysis showed that sLR11 and Aβ comigrated with a large apoE-containing CSF-HDL. Moreover, fewer apoE was bound to Aβ when a higher amount of apoE was bound to sLR11 in patients with AD who presented with ε4/4. CONCLUSION sLR11 binds to CSF-HDL and competes with Aβ in binding to apoE in CSF-HDL, indicating that sLR11 affects Aβ clearance via CSF-HDL.
Collapse
Affiliation(s)
- Kouji Yano
- Center for Genomic and Regenerative Medicine, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan; Department of Clinical Laboratory Medicine, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Satoshi Hirayama
- Department of Clinical Laboratory Medicine, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan; Department of Clinical Laboratory Medicine, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan.
| | - Naomi Misawa
- Department of Clinical Laboratory Medicine, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Ayaka Furuta
- Department of Clinical Laboratory Medicine, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Tsuyoshi Ueno
- Department of Clinical Laboratory Medicine, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Yumiko Motoi
- Department of Diagnosis, Prevention and Treatment of Dementia, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan; Department of Neurology, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Utako Seino
- Bioscience Medical Research Center, Niigata University Medical & Dental Hospital, Asahimachi-Tohri 1-754, Chuo-ku, Niigata, Niigata 951-8510, Japan
| | - Hiroyuki Ebinuma
- Sekisui Medical Tsukuba Research Institute, Yoshiwara 3262-12, Ami-machi, Inashiki-gun, Ibaraki 301-1155, Japan
| | - Takeshi Ikeuchi
- Department of Molecular Genetics, Brain Research Institute, Niigata University, Asahimachi-Tohri 1-757, Chuo-ku, Niigata, Niigata 951-8585, Japan
| | - Wolfgang J Schneider
- Department of Medical Biochemistry, Max F. Perutz Laboratories, Medical University of Vienna, Vienna 1090, Austria
| | - Hideaki Bujo
- Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Shimoshizu 564-1, Sakura, Chiba 285-8741, Japan
| | - Takashi Miida
- Department of Clinical Laboratory Medicine, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan; Department of Clinical Laboratory Medicine, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo 113-8421, Japan
| |
Collapse
|
10
|
Machado-Pineda Y, Cardeñes B, Reyes R, López-Martín S, Toribio V, Sánchez-Organero P, Suarez H, Grötzinger J, Lorenzen I, Yáñez-Mó M, Cabañas C. CD9 Controls Integrin α5β1-Mediated Cell Adhesion by Modulating Its Association With the Metalloproteinase ADAM17. Front Immunol 2018; 9:2474. [PMID: 30455686 PMCID: PMC6230984 DOI: 10.3389/fimmu.2018.02474] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 10/08/2018] [Indexed: 12/21/2022] Open
Abstract
Integrin α5β1 is a crucial adhesion molecule that mediates the adherence of many cell types to the extracellular matrix through recognition of its classic ligand fibronectin as well as to other cells through binding to an alternative counter-receptor, the metalloproteinase ADAM17/TACE. Interactions between integrin α5β1 and ADAM17 may take place both in trans (between molecules expressed on different cells) or in cis (between molecules expressed on the same cell) configurations. It has been recently reported that the cis association between α5β1 and ADAM17 keeps both molecules inactive, whereas their dissociation results in activation of their adhesive and metalloproteinase activities. Here we show that the tetraspanin CD9 negatively regulates integrin α5β1-mediated cell adhesion by enhancing the cis interaction of this integrin with ADAM17 on the cell surface. Additionally we show that, similarly to CD9, the monoclonal antibody 2A10 directed to the disintegrin domain of ADAM17 specifically inhibits integrin α5β1-mediated cell adhesion to its ligands fibronectin and ADAM17.
Collapse
Affiliation(s)
- Yesenia Machado-Pineda
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | - Beatriz Cardeñes
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | - Raquel Reyes
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | - Soraya López-Martín
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain.,Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
| | - Víctor Toribio
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain.,Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
| | - Paula Sánchez-Organero
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | - Henar Suarez
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain.,Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
| | - Joachim Grötzinger
- Institute of Biochemistry, Christian-Albrechts University, Kiel, Germany
| | - Inken Lorenzen
- Department of Structural Biology, Institute of Zoology, Kiel, Germany
| | - María Yáñez-Mó
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain.,Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain.,Centro de Biología Molecular Severo Ochoa, Instituto de Investigación Sanitaria la Princesa (IIS-IP), Madrid, Spain
| | - Carlos Cabañas
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain.,Departamento de Inmunología, Oftalmología y OTR, Facultad de Medicina, Universidad Complutense, Madrid, Spain
| |
Collapse
|
11
|
Reyes R, Cardeñes B, Machado-Pineda Y, Cabañas C. Tetraspanin CD9: A Key Regulator of Cell Adhesion in the Immune System. Front Immunol 2018; 9:863. [PMID: 29760699 PMCID: PMC5936783 DOI: 10.3389/fimmu.2018.00863] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 04/09/2018] [Indexed: 12/21/2022] Open
Abstract
The tetraspanin CD9 is expressed by all the major subsets of leukocytes (B cells, CD4+ T cells, CD8+ T cells, natural killer cells, granulocytes, monocytes and macrophages, and immature and mature dendritic cells) and also at a high level by endothelial cells. As a typical member of the tetraspanin superfamily, a prominent feature of CD9 is its propensity to engage in a multitude of interactions with other tetraspanins as well as with different transmembrane and intracellular proteins within the context of defined membranal domains termed tetraspanin-enriched microdomains (TEMs). Through these associations, CD9 influences many cellular activities in the different subtypes of leukocytes and in endothelial cells, including intracellular signaling, proliferation, activation, survival, migration, invasion, adhesion, and diapedesis. Several excellent reviews have already covered the topic of how tetraspanins, including CD9, regulate these cellular processes in the different cells of the immune system. In this mini-review, however, we will focus particularly on describing and discussing the regulatory effects exerted by CD9 on different adhesion molecules that play pivotal roles in the physiology of leukocytes and endothelial cells, with a particular emphasis in the regulation of adhesion molecules of the integrin and immunoglobulin superfamilies.
Collapse
Affiliation(s)
- Raquel Reyes
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | - Beatriz Cardeñes
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | - Yesenia Machado-Pineda
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | - Carlos Cabañas
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain.,Departamento de Inmunología, Oftalmología y OTR (IO2), Facultad de Medicina, Universidad Complutense, Madrid, Spain
| |
Collapse
|
12
|
Motani K, Kosako H. Activation of stimulator of interferon genes (STING) induces ADAM17-mediated shedding of the immune semaphorin SEMA4D. J Biol Chem 2018; 293:7717-7726. [PMID: 29618514 DOI: 10.1074/jbc.ra118.002175] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/23/2018] [Indexed: 01/06/2023] Open
Abstract
Stimulator of interferon genes (STING) is an endoplasmic reticulum-resident membrane protein that mediates cytosolic pathogen DNA-induced innate immunity and inflammatory responses in host defenses. STING is activated by cyclic di-nucleotides and is then translocated to the Golgi apparatus, an event that triggers STING assembly with the downstream enzyme TANK-binding kinase 1 (TBK1). This assembly leads to the phosphorylation of the transcription factor interferon regulatory factor 3 (IRF3), which in turn induces expression of type-I interferon (IFN) and chemokine genes. STING also mediates inflammatory responses independently of IRF3, but these molecular pathways are largely unexplored. Here, we analyzed the RAW264.7 macrophage secretome to comprehensively identify proinflammatory factors released into the extracellular medium upon STING activation. In total, we identified 1299 proteins in macrophage culture supernatants, of which 23 were significantly increased after STING activation. These proteins included IRF3-dependent cytokines, as well as previously unknown targets of STING, such as the immune semaphorin SEMA4D/CD100, which possesses proinflammatory cytokine-like activities. Unlike for canonical cytokines, the expression of the SEMA4D gene was not up-regulated. Instead, upon STING activation, membrane-bound SEMA4D was cleaved into a soluble form, suggesting the presence of a post-translational shedding machinery. Importantly, the SEMA4D shedding was blocked by TMI-1, an inhibitor of the sheddase ADAM metallopeptidase domain 17 (ADAM17) but not by the TBK1 inhibitor BX795. These results suggest that STING activates ADAM17 and that this activation produces soluble proinflammatory SEMA4D independently of the TBK1/IRF3-mediated transcriptional pathway.
Collapse
Affiliation(s)
- Kou Motani
- From the Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hidetaka Kosako
- From the Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| |
Collapse
|
13
|
Vongpromek R, Bos S, Ten Kate GJR, Bujo H, Jiang M, Nieman K, Schneider W, Roeters van Lennep JE, Verhoeven AJM, Sijbrands EJG, Mulder MT. Soluble LR11 associates with aortic root calcification in asymptomatic treated male patients with familial hypercholesterolemia. Atherosclerosis 2017. [PMID: 28637586 DOI: 10.1016/j.atherosclerosis.2017.06.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND AIMS Despite statin treatment, a high prevalence of severe vascular calcification is found in patients with familial hypercholesterolemia (FH). We assessed the relation between the circulating soluble form of low-density lipoprotein receptor relative with 11 ligand-binding repeats (sLR11), a risk factor for cardiovascular disease, and vascular calcification in asymptomatic statin-treated heterozygous FH patients. METHODS In 123 asymptomatic heterozygous FH patients (age 40-69 years), aortic root (ARC), aortic valve (AVC) and coronary artery calcification (CAC) were determined with CT-based calcium scoring expressed in Agatston units. Plasma sLR11 levels were measured by sandwich ELISA. RESULTS Seventy-three patients displayed ARC, 48 had AVC and 96 CAC. Plasma sLR11 levels were positively correlated with the presence of ARC (r = 0.2, p = 0.03), but not with AVC or CAC. The correlation between sLR11 levels and ARC was restricted to male FH patients (r = 0.31, p = 0.006). Multivariate logistic analyses showed that the association of plasma sLR11 with the presence of ARC was independent of other determinants (Adjusted Odds Ratio, 2.01 (95% CI = 1.28-3.16) p = 0.002). CONCLUSIONS Plasma sLR11 is associated with ARC in male FH patients and may be mechanistically involved in the differential distribution of atherosclerotic lesions in the vasculature.
Collapse
Affiliation(s)
- Ranitha Vongpromek
- Department of Internal Medicine, Laboratory of Vascular Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Sven Bos
- Department of Internal Medicine, Laboratory of Vascular Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Gert-Jan R Ten Kate
- Department of Cardiology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Hideaki Bujo
- Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University, Sakura Medical Center, Sakura, Japan
| | - Meizi Jiang
- Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University, Sakura Medical Center, Sakura, Japan
| | - Koen Nieman
- Department of Cardiology, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Radiology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Wolfgang Schneider
- Department of Medical Biochemistry, Medical University of Vienna, Max. F. Perutz Laboratories, Vienna, Austria
| | - Jeanine E Roeters van Lennep
- Department of Internal Medicine, Laboratory of Vascular Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Adrie J M Verhoeven
- Department of Internal Medicine, Laboratory of Vascular Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Eric J G Sijbrands
- Department of Internal Medicine, Laboratory of Vascular Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Monique T Mulder
- Department of Internal Medicine, Laboratory of Vascular Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands.
| |
Collapse
|
14
|
Termini CM, Gillette JM. Tetraspanins Function as Regulators of Cellular Signaling. Front Cell Dev Biol 2017; 5:34. [PMID: 28428953 PMCID: PMC5382171 DOI: 10.3389/fcell.2017.00034] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 03/22/2017] [Indexed: 01/10/2023] Open
Abstract
Tetraspanins are molecular scaffolds that distribute proteins into highly organized microdomains consisting of adhesion, signaling, and adaptor proteins. Many reports have identified interactions between tetraspanins and signaling molecules, finding unique downstream cellular consequences. In this review, we will explore these interactions as well as the specific cellular responses to signal activation, focusing on tetraspanin regulation of adhesion-mediated (integrins/FAK), receptor-mediated (EGFR, TNF-α, c-Met, c-Kit), and intracellular signaling (PKC, PI4K, β-catenin). Additionally, we will summarize our current understanding for how tetraspanin post-translational modifications (palmitoylation, N-linked glycosylation, and ubiquitination) can regulate signal propagation. Many of the studies outlined in this review suggest that tetraspanins offer a potential therapeutic target to modulate aberrant signal transduction pathways that directly impact a host of cellular behaviors and disease states.
Collapse
Affiliation(s)
- Christina M Termini
- Department of Pathology, University of New Mexico Health Sciences CenterAlbuquerque, NM, USA
| | - Jennifer M Gillette
- Department of Pathology, University of New Mexico Health Sciences CenterAlbuquerque, NM, USA
| |
Collapse
|
15
|
Tien WS, Chen JH, Wu KP. SheddomeDB: the ectodomain shedding database for membrane-bound shed markers. BMC Bioinformatics 2017; 18:42. [PMID: 28361715 PMCID: PMC5374707 DOI: 10.1186/s12859-017-1465-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND A number of membrane-anchored proteins are known to be released from cell surface via ectodomain shedding. The cleavage and release of membrane proteins has been shown to modulate various cellular processes and disease pathologies. Numerous studies revealed that cell membrane molecules of diverse functional groups are subjected to proteolytic cleavage, and the released soluble form of proteins may modulate various signaling processes. Therefore, in addition to the secreted protein markers that undergo secretion through the secretory pathway, the shed membrane proteins may comprise an additional resource of noninvasive and accessible biomarkers. In this context, identifying the membrane-bound proteins that will be shed has become important in the discovery of clinically noninvasive biomarkers. Nevertheless, a data repository for biological and clinical researchers to review the shedding information, which is experimentally validated, for membrane-bound protein shed markers is still lacking. RESULTS In this study, the database SheddomeDB was developed to integrate publicly available data of the shed membrane proteins. A comprehensive literature survey was performed to collect the membrane proteins that were verified to be cleaved or released in the supernatant by immunological-based validation experiments. From 436 studies on shedding, 401 validated shed membrane proteins were included, among which 199 shed membrane proteins have not been annotated or validated yet by existing cleavage databases. SheddomeDB attempted to provide a comprehensive shedding report, including the regulation of shedding machinery and the related function or diseases involved in the shedding events. In addition, our published tool ShedP was embedded into SheddomeDB to support researchers for predicting the shedding event on unknown or unrecorded membrane proteins. CONCLUSIONS To the best of our knowledge, SheddomeDB is the first database for the identification of experimentally validated shed membrane proteins and currently may provide the most number of membrane proteins for reviewing the shedding information. The database included membrane-bound shed markers associated with numerous cellular processes and diseases, and some of these markers are potential novel markers because they are not annotated or validated yet in other databases. SheddomeDB may provide a useful resource for discovering membrane-bound shed markers. The interactive web of SheddomeDB is publicly available at http://bal.ym.edu.tw/SheddomeDB/ .
Collapse
Affiliation(s)
- Wei-Sheng Tien
- Institute of Biomedical Informatics, National Yang Ming University, Taipei, 112, Taiwan.,Bioinformatics Program, Taiwan International Graduate Program, Academia Sinica, Taipei, 115, Taiwan
| | - Jun-Hong Chen
- Department of Computer Science, National Taipei University of Education, Taipei, 106, Taiwan
| | - Kun-Pin Wu
- Institute of Biomedical Informatics, National Yang Ming University, Taipei, 112, Taiwan.
| |
Collapse
|
16
|
Seipold L, Saftig P. The Emerging Role of Tetraspanins in the Proteolytic Processing of the Amyloid Precursor Protein. Front Mol Neurosci 2016; 9:149. [PMID: 28066176 PMCID: PMC5174118 DOI: 10.3389/fnmol.2016.00149] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 12/05/2016] [Indexed: 12/20/2022] Open
Abstract
Tetraspanins are a family of ubiquitously expressed and conserved proteins, which are characterized by four transmembrane domains and the formation of a short and a large extracellular loop (LEL). Through interaction with other tetraspanins and transmembrane proteins such as growth factors, receptors and integrins, tetraspanins build a wide ranging and membrane spanning protein network. Such tetraspanin-enriched microdomains (TEMs) contribute to the formation and stability of functional signaling complexes involved in cell activation, adhesion, motility, differentiation, and malignancy. There is increasing evidence showing that the tetraspanins also regulate the proteolysis of the amyloid precursor protein (APP) by physically interacting with the APP secretases. CD9, CD63, CD81, Tspan12, Tspan15 are among the tetraspanins involved in the intracellular transport and in the stabilization of the gamma secretase complex or ADAM10 as the major APP alpha secretase. They also directly regulate, most likely in concert with other tetraspanins, the proteolytic function of these membrane embedded enzymes. Despite the knowledge about the interaction of tetraspanins with the secretases not much is known about their physiological role, their importance in Alzheimer's Disease and their exact mode of action. This review aims to summarize the current knowledge and open questions regarding the biology of tetraspanins and the understanding how these proteins interact with APP processing pathways. Ultimately, it will be of interest if tetraspanins are suitable targets for future therapeutical approaches.
Collapse
Affiliation(s)
- Lisa Seipold
- Institut für Biochemie, Christian-Albrechts-Universität zu Kiel (CAU) Kiel, Germany
| | - Paul Saftig
- Institut für Biochemie, Christian-Albrechts-Universität zu Kiel (CAU) Kiel, Germany
| |
Collapse
|
17
|
Ponsuksili S, Trakooljul N, Hadlich F, Haack F, Murani E, Wimmers K. Genetically regulated hepatic transcripts and pathways orchestrate haematological, biochemical and body composition traits. Sci Rep 2016; 6:39614. [PMID: 28000754 PMCID: PMC5175187 DOI: 10.1038/srep39614] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/22/2016] [Indexed: 01/19/2023] Open
Abstract
The liver is the central metabolic organ and exhibits fundamental functions in haematological traits. Hepatic expression, haematological, plasma biochemical, and body composition traits were assessed in a porcine model (n = 297) to establish tissue-specific genetic variations that influence the function of immune-metabolism-correlated expression networks. At FDR (false discovery rate) <1%, more than 3,600 transcripts were jointly correlated (r = |0.22-0.48|) with the traits. Functional enrichment analysis demonstrated common links of metabolic and immune traits. To understand how immune and metabolic traits are affected via genetic regulation of gene expression, eQTLs were assessed. 20517 significant (FDR < 5%) eQTLs for 1401 transcripts were identified, among which 443 transcripts were associated with at least one of the examined traits and had cis-eQTL (such as ACO1 (6.52 × 10-7) and SOD1 (6.41 × 10-30). The present study establishes a comprehensive view of hepatic gene activity which links together metabolic and immune traits in a porcine model for medical research.
Collapse
Affiliation(s)
- Siriluck Ponsuksili
- Research Unit 'Functional Genome Analysis', Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Nares Trakooljul
- Research Unit 'Genomics', Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Frieder Hadlich
- Research Unit 'Functional Genome Analysis', Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Fiete Haack
- Research Unit 'Functional Genome Analysis', Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Eduard Murani
- Research Unit 'Genomics', Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Klaus Wimmers
- Research Unit 'Genomics', Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| |
Collapse
|
18
|
Phenotyping of Leukocytes and Leukocyte-Derived Extracellular Vesicles. J Immunol Res 2016; 2016:6391264. [PMID: 27195303 PMCID: PMC4852366 DOI: 10.1155/2016/6391264] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 03/04/2016] [Accepted: 03/20/2016] [Indexed: 12/11/2022] Open
Abstract
Extracellular vesicles (EVs) have a demonstrated involvement in modulating the immune system. It has been proposed that EVs could be used as biomarkers for detection of inflammatory and immunological disorders. Consequently, it is of great interest to investigate EVs in more detail with focus on immunological markers. In this study, five major leukocyte subpopulations and the corresponding leukocyte-derived EVs were phenotyped with focus on selected immunological lineage-specific markers and selected vesicle-related markers. The leukocyte-derived EVs displayed phenotypic differences in the 34 markers investigated. The majority of the lineage-specific markers used for identification of the parent cell types could not be detected on EVs released from monocultures of the associated cell types. In contrast, the vesicular presentation of CD9, CD63, and CD81 correlated to the cell surface expression of these markers, however, with few exceptions. Furthermore, the cellular expression of CD9, CD63, and CD81 varied between leukocytes present in whole blood and cultured leukocytes. In summary, these data demonstrate that the cellular and vesicular presentation of selected lineage-specific and vesicle-related markers may differ, supporting the accumulating observations that sorting of molecular cargo into EVs is tightly controlled.
Collapse
|
19
|
Ohwada C, Yamazaki A, Kawaguchi T, Sugita Y, Takeuchi M, Shimizu N, Sakaida E, Takeda Y, Tsukamoto S, Muto T, Jiang M, Higashi M, Yokote K, Tamaru JI, Bujo H, Nakaseko C. Serum soluble LR11, a novel tumor derived biomarker associated with the outcome of patients with diffuse large B-cell lymphoma. Leuk Lymphoma 2015; 56:2982-5. [PMID: 25676033 DOI: 10.3109/10428194.2015.1016930] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Chikako Ohwada
- a Department of Hematology , Chiba University Hospital , Chiba , Japan
| | - Atsuko Yamazaki
- a Department of Hematology , Chiba University Hospital , Chiba , Japan
| | | | - Yasumasa Sugita
- a Department of Hematology , Chiba University Hospital , Chiba , Japan
| | - Masahiro Takeuchi
- a Department of Hematology , Chiba University Hospital , Chiba , Japan
| | - Naomi Shimizu
- b Department of Blood Transfusion , Toho University Medical Center , Sakura Hospital, Sakura , Japan
| | - Emiko Sakaida
- a Department of Hematology , Chiba University Hospital , Chiba , Japan
| | - Yusuke Takeda
- a Department of Hematology , Chiba University Hospital , Chiba , Japan
| | | | - Tomoya Muto
- a Department of Hematology , Chiba University Hospital , Chiba , Japan
| | - Meizi Jiang
- c Department of Clinical Laboratory Medicine , Toho University Medical Center, Sakura Hospital , Sakura , Japan
| | - Morihiro Higashi
- d Department of Pathology , Saitama Medical Center, Saitama Medical University , Saitama , Japan
| | - Koutaro Yokote
- e Department of Clinical Cell Biology and Medicine , Chiba University Graduate School of Medicine , Chiba , Japan
| | - Jun-Ichi Tamaru
- d Department of Pathology , Saitama Medical Center, Saitama Medical University , Saitama , Japan
| | - Hideaki Bujo
- c Department of Clinical Laboratory Medicine , Toho University Medical Center, Sakura Hospital , Sakura , Japan
| | - Chiaki Nakaseko
- a Department of Hematology , Chiba University Hospital , Chiba , Japan
| |
Collapse
|
20
|
Ebsen H, Lettau M, Kabelitz D, Janssen O. Subcellular localization and activation of ADAM proteases in the context of FasL shedding in T lymphocytes. Mol Immunol 2015; 65:416-28. [PMID: 25745808 DOI: 10.1016/j.molimm.2015.02.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 01/20/2015] [Accepted: 02/08/2015] [Indexed: 10/23/2022]
Abstract
The "A Disintegrin And Metalloproteinases" (ADAMs) form a subgroup of the metzincin endopeptidases. Proteolytically active members of this protein family act as sheddases and govern key processes in development and inflammation by regulating cell surface expression and release of cytokines, growth factors, adhesion molecules and their receptors. In T lymphocytes, ADAM10 sheds the death factor Fas Ligand (FasL) and thereby regulates T cell activation, death and effector function. Although FasL shedding by ADAM10 was confirmed in several studies, its regulation is still poorly defined. We recently reported that ADAM10 is highly abundant on T cells whereas its close relative ADAM17 is expressed at low levels and transiently appears at the cell surface upon stimulation. Since FasL is also stored intracellularly and brought to the plasma membrane upon stimulation, we addressed where the death factor gets exposed to ADAM proteases. We report for the first time that both ADAM10 and ADAM17 are associated with FasL-containing secretory lysosomes. Moreover, we demonstrate that TCR/CD3/CD28-stimulation induces a partial positioning of both proteases and FasL to lipid rafts and only the activation-induced raft-positioning results in FasL processing. TCR/CD3/CD28-induced FasL proteolysis is markedly affected by reducing both ADAM10 and ADAM17 protein levels, indicating that in human T cells also ADAM17 is implicated in FasL processing. Since FasL shedding is affected by cholesterol depletion and by inhibition of Src kinases or palmitoylation, we conclude that it requires mobilization and co-positioning of ADAM proteases in lipid raft-like platforms associated with an activation of raft-associated Src-family kinases.
Collapse
Affiliation(s)
- Henriette Ebsen
- University of Kiel, Institute of Immunology, University Hospital Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3 Bldg 17, D-24105 Kiel, Germany
| | - Marcus Lettau
- University of Kiel, Institute of Immunology, University Hospital Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3 Bldg 17, D-24105 Kiel, Germany
| | - Dieter Kabelitz
- University of Kiel, Institute of Immunology, University Hospital Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3 Bldg 17, D-24105 Kiel, Germany
| | - Ottmar Janssen
- University of Kiel, Institute of Immunology, University Hospital Schleswig-Holstein Campus Kiel, Arnold-Heller-Str. 3 Bldg 17, D-24105 Kiel, Germany.
| |
Collapse
|