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Ebsen H, Lettau M, Kabelitz D, Janssen O. Identification of SH3 domain proteins interacting with the cytoplasmic tail of the a disintegrin and metalloprotease 10 (ADAM10). PLoS One 2014; 9:e102899. [PMID: 25036101 PMCID: PMC4103893 DOI: 10.1371/journal.pone.0102899] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 06/25/2014] [Indexed: 11/19/2022] Open
Abstract
The a disintegrin and metalloproteases (ADAMs) play a pivotal role in the control of development, adhesion, migration, inflammation and cancer. Although numerous substrates of ADAM10 have been identified, the regulation of its surface expression and proteolytic activity is still poorly defined. One current hypothesis is that both processes are in part modulated by protein-protein interactions mediated by the intracellular portion of the protease. For related proteases, especially proline-rich regions serving as docking sites for Src homology domain 3 (SH3) domain-containing proteins proved to be important for mediating regulatory interactions. In order to identify ADAM10-binding SH3 domain proteins, we screened the All SH3 Domain Phager library comprising 305 human SH3 domains using a GST fusion protein with the intracellular region of human ADAM10 as a bait for selection. Of a total of 291 analyzed phage clones, we found 38 SH3 domains that were precipitated with the ADAM10-derived fusion protein but not with GST. We verified the binding to the cytosolic portion of ADAM10 for several candidates by co-immunoprecipitation and/or pull down analyses. Intriguingly, several of the identified proteins have been implicated in regulating surface appearance and/or proteolytic activity of related ADAMs. Thus, it seems likely that they also play a role in ADAM10 biology.
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Affiliation(s)
- Henriette Ebsen
- University of Kiel, Molecular Immunology, Institute for Immunology, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Marcus Lettau
- University of Kiel, Molecular Immunology, Institute for Immunology, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Dieter Kabelitz
- University of Kiel, Molecular Immunology, Institute for Immunology, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Ottmar Janssen
- University of Kiel, Molecular Immunology, Institute for Immunology, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
- * E-mail:
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2
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Chen J, Jiang X, Duan Y, Long J, Bartsch JW, Deng L. ADAM8 in asthma. Friend or foe to airway inflammation? Am J Respir Cell Mol Biol 2014; 49:875-84. [PMID: 23837412 DOI: 10.1165/rcmb.2013-0168tr] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Airway inflammation has been suggested as the pathological basis in asthma pathogenesis. Recruitment of leukocytes from the vasculature into airway sites is essential for induction of airway inflammation, a process thought to be mediated by a disintegrin and metalloprotease 8 (ADAM8). However, there is an apparent controversy about whether ADAM8 helps or hampers transmigration of leukocytes through endothelium in airway inflammation of asthma. This review outlines the current contradictory concepts concerning the role of ADAM8 in airway inflammation, particularly focusing on the recruitment of leukocytes during asthma, and attempts to bridge the existing experimental data on the basis of the functional analysis of different domains of ADAM8 and their endogenous processing in vivo. We suggest a possible hypothesis for the specific mechanism by which ADAM8 regulates the transmigration of leukocytes to explain the disparity existing in current studies, and we also raise some questions that require future investigations.
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Affiliation(s)
- Jun Chen
- 1 Key Lab of Biorheological Science and Technology, Ministry of Education, "National 985 Project" Institute of Biorheology and Gene Regulation, Bioengineering College, Chongqing University, Chongqing, P.R. China
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3
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Bolger JC, Young LS. ADAM22 as a Prognostic and Therapeutic Drug Target in the Treatment of Endocrine-Resistant Breast Cancer. VITAMINS & HORMONES 2013; 93:307-21. [DOI: 10.1016/b978-0-12-416673-8.00014-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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4
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Aragão AZB, Nogueira MLC, Granato DC, Simabuco FM, Honorato RV, Hoffman Z, Yokoo S, Laurindo FRM, Squina FM, Zeri ACM, Oliveira PSL, Sherman NE, Paes Leme AF. Identification of novel interaction between ADAM17 (a disintegrin and metalloprotease 17) and thioredoxin-1. J Biol Chem 2012; 287:43071-82. [PMID: 23105116 PMCID: PMC3522302 DOI: 10.1074/jbc.m112.364513] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 10/24/2012] [Indexed: 12/31/2022] Open
Abstract
ADAM17, which is also known as TNFα-converting enzyme, is the major sheddase for the EGF receptor ligands and is considered to be one of the main proteases responsible for the ectodomain shedding of surface proteins. How a membrane-anchored proteinase with an extracellular catalytic domain can be activated by inside-out regulation is not completely understood. We characterized thioredoxin-1 (Trx-1) as a partner of the ADAM17 cytoplasmic domain that could be involved in the regulation of ADAM17 activity. We induced the overexpression of the ADAM17 cytoplasmic domain in HEK293 cells, and ligands able to bind this domain were identified by MS after protein immunoprecipitation. Trx-1 was also validated as a ligand of the ADAM17 cytoplasmic domain and full-length ADAM17 recombinant proteins by immunoblotting, immunolocalization, and solid phase binding assay. In addition, using nuclear magnetic resonance, it was shown in vitro that the titration of the ADAM17 cytoplasmic domain promotes changes in the conformation of Trx-1. The MS analysis of the cross-linked complexes showed cross-linking between the two proteins by lysine residues. To further evaluate the functional role of Trx-1, we used a heparin-binding EGF shedding cell model and observed that the overexpression of Trx-1 in HEK293 cells could decrease the activity of ADAM17, activated by either phorbol 12-myristate 13-acetate or EGF. This study identifies Trx-1 as a novel interaction partner of the ADAM17 cytoplasmic domain and suggests that Trx-1 is a potential candidate that could be involved in ADAM17 activity regulation.
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Affiliation(s)
- Annelize Z. B. Aragão
- From the Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brasil
| | - Maria Luiza C. Nogueira
- From the Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brasil
| | - Daniela C. Granato
- From the Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brasil
| | - Fernando M. Simabuco
- From the Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brasil
| | - Rodrigo V. Honorato
- From the Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brasil
| | - Zaira Hoffman
- the Laboratório Nacional de Ciência e Tecnologia do Bioetanol, CTBE, CNPEM, Campinas, Brasil
| | - Sami Yokoo
- From the Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brasil
| | | | - Fabio M. Squina
- the Laboratório Nacional de Ciência e Tecnologia do Bioetanol, CTBE, CNPEM, Campinas, Brasil
| | - Ana Carolina M. Zeri
- From the Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brasil
| | - Paulo S. L. Oliveira
- From the Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brasil
| | - Nicholas E. Sherman
- the W. M. Keck Biomedical Mass Spectrometry Lab, University of Virginia, Charlottesville, Virginia 22908
| | - Adriana F. Paes Leme
- From the Laboratório de Espectrometria de Massas, Laboratório Nacional de Biociências, LNBio, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brasil
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Leyme A, Bourd-Boittin K, Bonnier D, Falconer A, Arlot-Bonnemains Y, Théret N. Identification of ILK as a new partner of the ADAM12 disintegrin and metalloprotease in cell adhesion and survival. Mol Biol Cell 2012; 23:3461-72. [PMID: 22767580 PMCID: PMC3431925 DOI: 10.1091/mbc.e11-11-0918] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
ILK is identified as a new partner for ADAM12L cell signaling functions. ADAM12L colocalizes with ILK at focal adhesions and induces the Akt-dependent survival pathway via stimulation of β1 integrins and activation of PI3K. This effect is independent of ADAM12L proteolytic activity and involves its cytoplasmic domain. Based on its shedding and binding activities, the disintegrin and metalloprotease 12 (ADAM12) has been implicated in cell signaling. Here we investigate the intracellular protein interaction network of the transmembrane ADAM12L variant using an integrative approach. We identify the integrin-linked kinase (ILK) as a new partner for ADAM12L cellular functions. We demonstrate that ADAM12L coimmunoprecipitates with ILK in cells and that its cytoplasmic tail is required for this interaction. In human cultured hepatic stellate cells (HSCs), which express high levels of endogenous ADAM12L and ILK, the two proteins are redistributed to focal adhesions upon stimulation of a β1 integrin–dependent pathway. We show that down-regulation of ADAM12L in HSCs leads to cytoskeletal disorganization and loss of adhesion. Conversely, up-regulation of ADAM12L induces the Akt Ser-473 phosphorylation-dependent survival pathway via stimulation of β1 integrins and activation of phosphoinositide 3-kinase (PI3K). Depletion of ILK inhibits this effect, which is independent of ADAM12L proteolytic activity and involves its cytoplasmic domain. We further demonstrate that overexpression of ADAM12L promotes kinase activity from ILK immunoprecipitates. Our data suggest a new role for ADAM12L in mediating the functional association of ILK with β1 integrin to regulate cell adhesion/survival through a PI3K/Akt signaling pathway.
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Affiliation(s)
- Anthony Leyme
- Institut National de la Santé et de la Recherche Médicale, UMR1085, Institut de Recherche en Santé, Environnement et Travail, Université de Rennes 1, 35043 Rennes, France
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6
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Cousin H, Abbruzzese G, Kerdavid E, Gaultier A, Alfandari D. Translocation of the cytoplasmic domain of ADAM13 to the nucleus is essential for Calpain8-a expression and cranial neural crest cell migration. Dev Cell 2011; 20:256-63. [PMID: 21316592 DOI: 10.1016/j.devcel.2010.12.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2010] [Revised: 11/01/2010] [Accepted: 12/06/2010] [Indexed: 12/24/2022]
Abstract
ADAMs are transmembrane metalloproteases that control cell behavior by cleaving both cell adhesion and signaling molecules. The cytoplasmic domain of ADAMs can regulate the proteolytic activity by controlling the subcellular localization and/or the activation of the protease domain. Here, we show that the cytoplasmic domain of ADAM13 is cleaved and translocates into the nucleus. Preventing this translocation renders the protein incapable of promoting cranial neural crest (CNC) cell migration in vivo, without affecting its proteolytic activity. In addition, the cytoplasmic domain of ADAM13 regulates the expression of multiple genes in CNC, including the protease Calpain8-a. Restoring the expression of Calpain8-a is sufficient to rescue CNC migration in the absence of the ADAM13 cytoplasmic domain. This study shows that the cytoplasmic domain of ADAM metalloproteases can perform essential functions in the nucleus of cells and may contribute substantially to the overall function of the protein.
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Affiliation(s)
- Hélène Cousin
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA.
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7
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Murphy G. Regulation of the proteolytic disintegrin metalloproteinases, the ‘Sheddases’. Semin Cell Dev Biol 2009; 20:138-45. [DOI: 10.1016/j.semcdb.2008.09.004] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Revised: 09/12/2008] [Accepted: 09/15/2008] [Indexed: 10/21/2022]
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Abstract
The ADAMs (a disintegrin and metalloproteinase) are a fascinating family of transmembrane and secreted proteins with important roles in regulating cell phenotype via their effects on cell adhesion, migration, proteolysis and signalling. Though all ADAMs contain metalloproteinase domains, in humans only 13 of the 21 genes in the family encode functional proteases, indicating that at least for the other eight members, protein–protein interactions are critical aspects of their biological functions. The functional ADAM metalloproteinases are involved in “ectodomain shedding” of diverse growth factors, cytokines, receptors and adhesion molecules. The archetypal activity is shown by ADAM-17 (tumour necrosis factor-α convertase, TACE), which is the principal protease involved in the activation of pro-TNF-α, but whose sheddase functions cover a broad range of cell surface molecules. In particular, ADAM-17 is required for generation of the active forms of Epidermal Growth Factor Receptor (EGFR) ligands, and its function is essential for the development of epithelial tissues. Several other ADAMs have important sheddase functions in particular tissue contexts. Another major family member, ADAM-10, is a principal player in signalling via the Notch and Eph/ephrin pathways. For a growing number of substrates, foremost among them being Notch, cleavage by ADAM sheddases is essential for their subsequent “regulated intramembrane proteolysis” (RIP), which generates cleaved intracellular domains that translocate to the nucleus and regulate gene transcription. Several ADAMs play roles in spermatogenesis and sperm function, potentially by effecting maturation of sperm and their adhesion and migration in the uterus. Other non-catalytic ADAMs function in the CNS via effects on guidance mechanisms. The ADAM family are thus fundamental to many control processes in development and homeostasis, and unsurprisingly they are also linked to pathological states when their functions are dysregulated, including cancer, cardiovascular disease, asthma, Alzheimer’s disease. This review will provide an overview of current knowledge of the human ADAMs, discussing their structure, function, regulation and disease involvement.
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Affiliation(s)
- Dylan R Edwards
- Biomedical Research Centre, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
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Dyczynska E, Syta E, Sun D, Zolkiewska A. Breast cancer-associated mutations in metalloprotease disintegrin ADAM12 interfere with the intracellular trafficking and processing of the protein. Int J Cancer 2008; 122:2634-40. [PMID: 18241035 PMCID: PMC2636846 DOI: 10.1002/ijc.23405] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
ADAM12 has recently emerged as a Candidate Cancer Gene in a comprehensive genetic analysis of human breast cancers. Three somatic mutations in ADAM12 were observed at significant frequencies in breast cancers: D301H, G479E and L792F. The first 2 of these mutations involve highly conserved residues in ADAM12, and our computational sequence analysis confirms that they may be cancer-related. We show that the corresponding mutations in mouse ADAM12 inhibit the proteolytic processing and activation of ADAM12 in NIH3T3, COS-7, CHO-K1 cells and in MCF-7 breast cancer cells. The D/H and G/E ADAM12 mutants exert a dominant-negative effect on the processing of the wild-type ADAM12. Immunofluorescence analysis and cell surface biotinylation experiments demonstrate that the D/H and G/E mutants are retained inside the cell and are not transported to the cell surface. Consequently, the D/H and G/E mutants, unlike the wild-type ADAM12, are not capable of shedding Delta-like l, a ligand for Notch receptor, at the cell surface, or of stimulating cell migration. Our results suggest that the breast cancer-associated mutations interfere with the intracellular trafficking of ADAM12 and result in loss of the functional ADAM12 at the cell surface.
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Affiliation(s)
- Emilia Dyczynska
- Department of Biochemistry, Kansas State University, Manhattan, KS 66506, USA
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10
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Kveiborg M, Albrechtsen R, Couchman JR, Wewer UM. Cellular roles of ADAM12 in health and disease. Int J Biochem Cell Biol 2008; 40:1685-702. [PMID: 18342566 DOI: 10.1016/j.biocel.2008.01.025] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2007] [Revised: 01/17/2008] [Accepted: 01/21/2008] [Indexed: 12/18/2022]
Abstract
ADAM12 belongs to the large family of ADAMs (a disintegrin and metalloproteases) and possesses extracellular metalloprotease and cell-binding functions, as well as intracellular signaling capacities. Interest in ADAM12 has increased recently because its expression is related to tumor progression and it is a potential biomarker for breast cancer. It is therefore important to understand ADAM12's functions. Many cellular roles for ADAM12 have been suggested. It is an active metalloprotease, and has been implicated in insulin-like growth factor (IGF) receptor signaling, through cleavage of IGF-binding proteins, and in epidermal growth factor receptor (EGFR) pathways, via ectodomain shedding of membrane-tethered EGFR ligands. These proteolytic events may regulate diverse cellular responses, such as altered cell differentiation, proliferation, migration, and invasion. ADAM12 may also regulate cell-cell and cell-extracellular matrix contacts through interactions with cell surface receptors - integrins and syndecans - potentially influencing the actin cytoskeleton. Moreover, ADAM12 interacts with several cytoplasmic signaling and adaptor molecules through its intracellular domain, thereby directly transmitting signals to or from the cell interior. These ADAM12-mediated cellular effects appear to be critical events in both biological and pathological processes. This review presents current knowledge on ADAM12 functions gained from in vitro and in vivo observations, describes ADAM12's role in both normal physiology and pathology, particularly in cancer, and discusses important areas for future investigation.
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Affiliation(s)
- Marie Kveiborg
- Department of Biomedical Sciences and Biotech Research and Innovation Centre, The Faculty of Health Sciences, Copenhagen University, Copenhagen Biocenter, Ole Maaløesvej 5, 2200 Copenhagen N, Denmark.
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RelA/NF-kappaB transcription factor associates with alpha-actinin-4. Exp Cell Res 2007; 314:1030-8. [PMID: 18215660 DOI: 10.1016/j.yexcr.2007.12.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2007] [Revised: 11/13/2007] [Accepted: 12/03/2007] [Indexed: 11/23/2022]
Abstract
The NF-kappaB/RelA family of transcription factors regulates inducible transcription of a large number of genes in response to diverse stimuli. Little is known, however, about the location of NF-kappaB in the cytoplasm and the transport mechanism to the nucleus. We found that NF-kappaB is associated with the actin-binding protein alpha-actinin-4. NF-kappaB and alpha-actinin-4 co-localized along actin stress fibers and in membrane lamellae in A431 cells. After a 30-min stimulation with EGF or TNF-alpha, alpha-actinin-4 and p65 were found in the nucleus. Disruption of cytoskeleton by cytochalasin D prior to treatment with TNF-alpha led to increase of p65 nuclear translocation. Antibodies to p65 subunit of NF-kappaB co-immunoprecipitated alpha-actinin-4 from A431 cell lysates and nuclear extracts, but alpha-actinin-1 and beta-actin were not found in the precipitates. Affinity chromatography experiments displayed that p65 and p50 subunits of NF-kappaB can bind to matrix-bound chicken gizzard alpha-actinin. We suggest that the alpha-actinin-4 is important for the NF-kappaB nuclear translocation and its functions inside the nucleus.
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Holgate ST, Davies DE, Rorke S, Cakebread J, Murphy G, Powell RM, Holloway JW. ADAM 33 and its association with airway remodeling and hyperresponsiveness in asthma. Clin Rev Allergy Immunol 2005; 27:23-34. [PMID: 15347848 DOI: 10.1385/criai:27:1:023] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Asthma is known to be a Th2 inflammatory syndrome that leads to intermittent airway obstruction. However, the mechanisms involved in development of the clinical features remain enigmatic, although genetic elements clearly are involved. Recently, based on a large genome wide screen involving families in the United Kingdom and the United States with at least two siblings with asthma, a locus was identified that encoded for a family of proteases. This group of proteins is now known as the ADAM superfamily. In this review, we discuss the ADAM superfamily and, in particular, ADAM 33, a member of a family of genes which encode a subgroup of zinc dependent metalloproteinase (metzincin). The potential for therapeutic intervention with ADAM 33 is extremely attractive and further work will not only focus on the specific domains of ADAM 33, but also the mechanisms by which they lead to bronchial hyperreactivity.
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Affiliation(s)
- Stephen T Holgate
- Respiratory Cell and Molecular Biology Research Division, School of Medicine, University of Southampton, UK, University of Cambridge, UK.
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Lafuste P, Sonnet C, Chazaud B, Dreyfus PA, Gherardi RK, Wewer UM, Authier FJ. ADAM12 and alpha9beta1 integrin are instrumental in human myogenic cell differentiation. Mol Biol Cell 2004; 16:861-70. [PMID: 15574885 PMCID: PMC545917 DOI: 10.1091/mbc.e04-03-0226] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Knowledge on molecular systems involved in myogenic precursor cell (mpc) fusion into myotubes is fragmentary. Previous studies have implicated the a disintegrin and metalloproteinase (ADAM) family in most mammalian cell fusion processes. ADAM12 is likely involved in fusion of murine mpc and human rhabdomyosarcoma cells, but it requires yet unknown molecular partners to launch myogenic cell fusion. ADAM12 was shown able to mediate cell-to-cell attachment through binding alpha9beta1 integrin. We report that normal human mpc express both ADAM12 and alpha9beta1 integrin during their differentiation. Expression of alpha9 parallels that of ADAM12 and culminates at time of fusion. alpha9 and ADAM12 coimmunoprecipitate and participate to mpc adhesion. Inhibition of ADAM12/alpha9beta1 integrin interplay, by either ADAM12 antisense oligonucleotides or blocking antibody to alpha9beta1, inhibited overall mpc fusion by 47-48%, with combination of both strategies increasing inhibition up to 62%. By contrast with blockade of vascular cell adhesion molecule-1/alpha4beta1, which also reduced fusion, exposure to ADAM12 antisense oligonucleotides or anti-alpha9beta1 antibody did not induce detachment of mpc from extracellular matrix, suggesting specific involvement of ADAM12-alpha9beta1 interaction in the fusion process. Evaluation of the fusion rate with regard to the size of myotubes showed that both ADAM12 antisense oligonucleotides and alpha9beta1 blockade inhibited more importantly formation of large (> or =5 nuclei) myotubes than that of small (2-4 nuclei) myotubes. We conclude that both ADAM12 and alpha9beta1 integrin are expressed during postnatal human myogenic differentiation and that their interaction is mainly operative in nascent myotube growth.
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Affiliation(s)
- Peggy Lafuste
- Institut National de la Santé et de la Recherche Médicale EMI 0011, Faculty of Medicine, Paris XII University, Creteil 94010, France
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Zhao Z, Gruszczynska-Biegala J, Cheuvront T, Yi H, von der Mark H, von der Mark K, Kaufman SJ, Zolkiewska A. Interaction of the disintegrin and cysteine-rich domains of ADAM12 with integrin alpha7beta1. Exp Cell Res 2004; 298:28-37. [PMID: 15242759 DOI: 10.1016/j.yexcr.2004.04.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2003] [Revised: 04/02/2004] [Indexed: 11/17/2022]
Abstract
We describe a novel interaction between the disintegrin and cysteine-rich (DC) domains of ADAM12 and the integrin alpha7beta1. Integrin alpha7beta1 extracted from human embryonic kidney 293 cells transfected with alpha7 cDNA was retained on an affinity column containing immobilized DC domain of ADAM12. 293 cells stably transfected with alpha7 cDNA adhered to DC-coated wells, and this adhesion was partially inhibited by 6A11 integrin alpha7 function-blocking antibody. The X1 and the X2 extracellular splice variants of integrin alpha7 supported equally well adhesion to the DC protein. Integrin alpha7beta1-mediated cell adhesion to DC had different requirements for Mn2+ than adhesion to laminin. Furthermore, integrin alpha7beta1-mediated cell adhesion to laminin, but not to DC, resulted in efficient cell spreading and phosphorylation of focal adhesion kinase (FAK) at Tyr397. We also show that adhesion of L6 myoblasts to DC is mediated in part by the endogenous integrin alpha7beta1 expressed in these cells. Since integrin alpha7 plays an important role in muscle cell growth, stability, and survival, and since ADAM12 has been implicated in muscle development and regeneration, we postulate that the interaction between ADAM12 and integrin alpha7beta1 may be relevant to muscle development, function, and disease. We also conclude that laminin and the DC domain of ADAM12 represent two functional ligands for integrin alpha7beta1, and adhesion to each of these two ligands via integrin alpha7beta1 triggers different cellular responses.
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Affiliation(s)
- Zhefeng Zhao
- Department of Biochemistry, Kansas State University, Manhattan 66506, USA
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Kang T, Tschesche H, Amy Sang QX. Evidence for disulfide involvement in the regulation of intramolecular autolytic processing by human adamalysin19/ADAM19. Exp Cell Res 2004; 298:285-95. [PMID: 15242783 DOI: 10.1016/j.yexcr.2004.04.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2004] [Revised: 04/06/2004] [Indexed: 11/20/2022]
Abstract
Human adamalysin 19 (a disintegrin and metalloproteinase 19, hADAM19) is activated by furin-mediated cleavage of the prodomain followed by an autolytic processing within the cysteine-rich domain at Glu586-Ser587, which occurs intramolecularly, producing an NH2 terminal fragment (N-fragment) associated with its COOH-terminal fragment (C-fragment), most likely through disulfide bonds. When stable Madin-Darby canine kidney (MDCK) transfectants overexpressing soluble hADAM19 were treated with dithiothreitol (DTT) or with media at pH 6.5, 7.5, or 8.5, the secretion and folding of the enzyme were not affected. Autolytic processing was blocked by DTT and pH 6.5 media, which favor disulfide reduction, but was increased by pH 8.5 media, which promotes disulfide formation. Cys605, Cys633, Cys639, and Cys643 of the C-fragment appear to be partially responsible for the covalent association between the C-fragment and the N-fragment. A new autolytic processing site at Lys543-Val544 was identified in soluble mutants when these cysteine residues were individually mutated to serine residues. Shed fragments were also detectable in the media from MDCK cells stably expressing the full-length Cys633Ser mutant. Ilomastat/GM6001 inhibited hADAM19 with an IC50 of 447 nM, but scarcely affected the shedding process. The cysteine-rich domain likely forms disulfide bonds to regulate the autolytic processing and shedding of hADAM19.
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Affiliation(s)
- Tiebang Kang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee 32306-4390, USA
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Beauvais DM, Rapraeger AC. Syndecans in tumor cell adhesion and signaling. Reprod Biol Endocrinol 2004; 2:3. [PMID: 14711376 PMCID: PMC320497 DOI: 10.1186/1477-7827-2-3] [Citation(s) in RCA: 191] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2003] [Accepted: 01/07/2004] [Indexed: 01/02/2023] Open
Abstract
Anchorage of cells to "heparin"--binding domains that are prevalent in extracellular matrix (ECM) components is thought to occur primarily through the syndecans, a four-member family of transmembrane heparan sulfate proteoglycans that communicate environmental cues from the ECM to the cytoskeleton and the signaling apparatus of the cell. Known activities of the syndecans trace to their highly conserved cytoplasmic domains and to their heparan sulfate chains, which can serve to regulate the signaling of growth factors and morphogens. However, several emerging studies point to critical roles for the syndecans' extracellular protein domains in tumor cell behavior to include cell adhesion and invasion. Although the mechanisms of these activities remain largely unknown, one possibility involves "co-receptor" interactions with integrins that may regulate integrin function and the cell adhesion-signaling phenotype. Thus, alterations in syndecan expression, leading to either overexpression or loss of expression, both of which take place in tumor cells, may have dramatic effects on tumor cell invasion.
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Affiliation(s)
- DeannaLee M Beauvais
- Department of Pathology and Laboratory Medicine, 1300 University Avenue, 6459 Medical Sciences Center (MSC), University of Wisconsin-Madison, Madison, WI 53706-1510, USA
| | - Alan C Rapraeger
- Department of Pathology and Laboratory Medicine, 1300 University Avenue, 6459 Medical Sciences Center (MSC), University of Wisconsin-Madison, Madison, WI 53706-1510, USA
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Becherer JD, Blobel CP. Biochemical properties and functions of membrane-anchored metalloprotease-disintegrin proteins (ADAMs). Curr Top Dev Biol 2003; 54:101-23. [PMID: 12696747 DOI: 10.1016/s0070-2153(03)54006-6] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- J David Becherer
- Department of Biochemical and Analytical Pharmacology, GlaxoSmithKline Research Inc., Research Triangle Park, North Carolina 27709, USA
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Cao Y, Zhao Z, Gruszczynska-Biegala J, Zolkiewska A. Role of metalloprotease disintegrin ADAM12 in determination of quiescent reserve cells during myogenic differentiation in vitro. Mol Cell Biol 2003; 23:6725-38. [PMID: 12972593 PMCID: PMC193919 DOI: 10.1128/mcb.23.19.6725-6738.2003] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Skeletal myoblasts grown in vitro and induced to differentiate either form differentiated multinucleated myotubes or give rise to quiescent, undifferentiated "reserve cells" that share several characteristics with muscle satellite cells. The mechanism of determination of reserve cells is poorly understood. We find that the expression level of the metalloprotease disintegrin ADAM12 is much higher in proliferating C2C12 myoblasts and in reserve cells than in myotubes. Inhibition of ADAM12 expression in differentiating C2C12 cultures by small interfering RNA is accompanied by lower expression levels of both quiescence markers (retinoblastoma-related protein p130 and cell cycle inhibitor p27) and differentiation markers (myogenin and integrin alpha7A isoform). Overexpression of ADAM12 in C2C12 cells under conditions that promote cell cycle progression leads to upregulation of p130 and p27, cell cycle arrest, and downregulation of MyoD. Thus, enhanced expression of ADAM12 induces a quiescence-like phenotype and does not stimulate differentiation. We also show that the region extending from the disintegrin to the transmembrane domain of ADAM12 and containing cell adhesion activity as well as the cytoplasmic domain of ADAM12 are required for ADAM12-mediated cell cycle arrest, while the metalloprotease domain is not essential. Our results suggest that ADAM12-mediated adhesion and/or signaling may play a role in determination of the pool of reserve cells during myoblast differentiation.
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Affiliation(s)
- Yi Cao
- Department of Biochemistry, Kansas State University, Manhattan, Kansas 66506, USA
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Seals DF, Courtneidge SA. The ADAMs family of metalloproteases: multidomain proteins with multiple functions. Genes Dev 2003; 17:7-30. [PMID: 12514095 DOI: 10.1101/gad.1039703] [Citation(s) in RCA: 784] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Darren F Seals
- Van Andel Research Institute, Grand Rapids, Michigan 49503, USA
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