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P C S, Shetty SS, Nalilu SK, Shetty PK, Patil P. Tetraspanin CD9: A friend or foe of head and neck cancer (Review). Oncol Rep 2022; 47:88. [PMID: 35266009 PMCID: PMC8931833 DOI: 10.3892/or.2022.8299] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/15/2021] [Indexed: 12/02/2022] Open
Abstract
Head and neck cancers are diverse and complex diseases characterised by unregulated growth of tumour cells in various parts of the head and neck region, such as in the buccal mucosa, floor of the mouth, tongue, oropharynx, hypopharynx, oesophagus, nasopharynx and salivary glands. Partial or total glossectomy, radiation or chemotherapy greatly affect patient quality of life. However, even following treatment, patients may relapse. Nicotine-derived nitrosamines and alcohol are the major etiological factors underlying this deadly disease. These compounds induce DNA damage that may lead to mutation in crucial genes, such as p53 and p21, which are important to regulate cell proliferation, thus leading to cancer. CD9 is a tetraspanin, which are a group of transmembrane proteins that have a role in cell motility and adhesion. The present review aimed to explore the role of CD9 in head and neck cancer. Epidermal growth factor receptor activity and cell proliferation are regulated by the CD9-integrin/CD9-transforming growth factor interaction. Hence, CD9 can play a dual role in various types of cancer.
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Affiliation(s)
- Suhasini P C
- Central Research Laboratory, K.S. Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka 575018, India
| | - Shilpa S Shetty
- Central Research Laboratory, K.S. Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka 575018, India
| | - Suchetha Kumari Nalilu
- Department of Biochemistry, K.S. Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka 575018, India
| | - Praveen Kumar Shetty
- Department of Biochemistry, K.S. Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka 575018, India
| | - Prakash Patil
- Central Research Laboratory, K.S. Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka 575018, India
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Lorico A, Lorico-Rappa M, Karbanová J, Corbeil D, Pizzorno G. CD9, a tetraspanin target for cancer therapy? Exp Biol Med (Maywood) 2021; 246:1121-1138. [PMID: 33601913 DOI: 10.1177/1535370220981855] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In the present minireview, we intend to provide a brief history of the field of CD9 involvement in oncogenesis and in the metastatic process of cancer, considering its potential value as a tumor-associated antigenic target. Over the years, CD9 has been identified as a favorable prognostic marker or predictor of metastatic potential depending on the cancer type. To understand its implications in cancer beside its use as an antigenic biomarker, it is essential to know its physiological functions, including its molecular partners in a given cell system. Moreover, the discovery that CD9 is one of the most specific and broadly expressed markers of extracellular membrane vesicles, nanometer-sized entities that are released into extracellular space and various physiological body fluids and play a role in intercellular communication under physiological and pathological conditions, notably the establishment of cancer metastases, has added a new dimension to our knowledge of CD9 function in cancer. Here, we will discuss these issues as well as the possible cancer therapeutic implications of CD9, their limitations, and pitfalls.
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Affiliation(s)
- Aurelio Lorico
- Touro University College of Medicine, Henderson, NV 89014, USA.,Mediterranean Institute of Oncology, Viagrande 95029, Italy
| | | | - Jana Karbanová
- Biotechnology Center and Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden 01307, Germany
| | - Denis Corbeil
- Biotechnology Center and Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden 01307, Germany
| | - Giuseppe Pizzorno
- University of Tennessee Health Science Center, Memphis, TN 38163, USA.,Erlanger Health System, Chattanooga, TN 37403 , USA
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3
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Tetraspanins: useful multifunction proteins for the possible design and development of small-molecule therapeutic tools. Drug Discov Today 2020; 26:56-68. [PMID: 33137483 DOI: 10.1016/j.drudis.2020.10.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/21/2020] [Accepted: 10/23/2020] [Indexed: 02/07/2023]
Abstract
Tetraspanins constitute a well-conserved superfamily of four-span small membrane proteins (TM4SF), with >30 members in humans, with important roles in numerous mechanisms of cell biology. Moreover, tetraspanins associate with either specific partner proteins or another tetraspanin, generating a network of interactions involved in cell and membrane compartmentalization and having a role in cellular development, proliferation, activation, motility, and membrane fusions. Therefore, tetraspanins are considered regulators of cellular signaling and are often depicted as 'molecular facilitators'. In view of these many physiological functions, it is likely that these molecules are important actors in pathological processes. In this review, we present the main characteristics of this superfamily, providing a more detailed description of some significant representatives and discuss their relevance as potential targets for the design and development of small-molecule therapeutics in different pathologies.
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Reyes-Ruiz JM, Osuna-Ramos JF, De Jesús-González LA, Hurtado-Monzón AM, Farfan-Morales CN, Cervantes-Salazar M, Bolaños J, Cigarroa-Mayorga OE, Martín-Martínez ES, Medina F, Fragoso-Soriano RJ, Chávez-Munguía B, Salas-Benito JS, Del Angel RM. Isolation and characterization of exosomes released from mosquito cells infected with dengue virus. Virus Res 2019; 266:1-14. [PMID: 30930201 DOI: 10.1016/j.virusres.2019.03.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 03/13/2019] [Accepted: 03/20/2019] [Indexed: 12/21/2022]
Abstract
Exosomes are endocytic origin small-membrane vesicles secreted to the extracellular space by most cell types. Exosomes released from virus infected-cells can mediate the cell-to-cell communication to promote or modulate viral transmission. Dengue virus (DENV) is an arbovirus transmitted by Aedes mosquitoes bite to humans. Interestingly, the role of exosomes during the DENV infection in mammalian cells has already been described. However, little is known about exosomes derived from infected mosquito cells. Thus, the exosomes released from DENV-infected C6/36 cells were isolated, purified and analyzed using an antibody against the tetraspanin CD9 from human that showed cross-reactivity with the homologs to human CD9 found in Aedes albopictus (AalCD9). The exosomes from DENV infected cells were larger than the exosomes secreted from uninfected cells, contained virus-like particles, and they were able to infect naïve C6/36 cells, suggesting that exosomes are playing a role in virus dissemination.
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Affiliation(s)
- José Manuel Reyes-Ruiz
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Juan Fidel Osuna-Ramos
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Luis Adrián De Jesús-González
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Arianna Mahely Hurtado-Monzón
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Carlos Noe Farfan-Morales
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Margot Cervantes-Salazar
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Jeni Bolaños
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Oscar E Cigarroa-Mayorga
- Departamento de Tecnologías Avanzadas, Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Eduardo San Martín-Martínez
- Centro de Investigación en Ciencias Aplicada y Tecnología Avanzada del Instituto Politécnico Nacional (CICATA-IPN), Mexico City, Mexico
| | - Fernando Medina
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | | | - Bibiana Chávez-Munguía
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Juan Santiago Salas-Benito
- Maestría en Ciencias en Biomedicina Molecular, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City, Mexico; Doctorado en Ciencias en Biotecnología, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Rosa M Del Angel
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico.
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5
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Crosstalk between cancer cells and endothelial cells: implications for tumor progression and intervention. Arch Pharm Res 2018; 41:711-724. [DOI: 10.1007/s12272-018-1051-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 06/26/2018] [Indexed: 02/07/2023]
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6
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Reducing isoform complexity of human tetraspanins by optimized expression in Dictyostelium discoideum enables high-throughput functional read-out. Protein Expr Purif 2017; 135:8-15. [DOI: 10.1016/j.pep.2017.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 04/18/2017] [Accepted: 04/20/2017] [Indexed: 11/21/2022]
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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.
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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
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8
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ErbB receptors and tetraspanins: Casting the net wider. Int J Biochem Cell Biol 2016; 77:68-71. [PMID: 27262234 DOI: 10.1016/j.biocel.2016.05.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/19/2016] [Accepted: 05/23/2016] [Indexed: 01/15/2023]
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Ulrich F, Carretero-Ortega J, Menéndez J, Narvaez C, Sun B, Lancaster E, Pershad V, Trzaska S, Véliz E, Kamei M, Prendergast A, Kidd KR, Shaw KM, Castranova DA, Pham VN, Lo BD, Martin BL, Raible DW, Weinstein BM, Torres-Vázquez J. Reck enables cerebrovascular development by promoting canonical Wnt signaling. Development 2015; 143:147-59. [PMID: 26657775 DOI: 10.1242/dev.123059] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 11/25/2015] [Indexed: 01/03/2023]
Abstract
The cerebral vasculature provides the massive blood supply that the brain needs to grow and survive. By acquiring distinctive cellular and molecular characteristics it becomes the blood-brain barrier (BBB), a selectively permeable and protective interface between the brain and the peripheral circulation that maintains the extracellular milieu permissive for neuronal activity. Accordingly, there is great interest in uncovering the mechanisms that modulate the formation and differentiation of the brain vasculature. By performing a forward genetic screen in zebrafish we isolated no food for thought (nft (y72)), a recessive late-lethal mutant that lacks most of the intracerebral central arteries (CtAs), but not other brain blood vessels. We found that the cerebral vascularization deficit of nft (y72) mutants is caused by an inactivating lesion in reversion-inducing cysteine-rich protein with Kazal motifs [reck; also known as suppressor of tumorigenicity 15 protein (ST15)], which encodes a membrane-anchored tumor suppressor glycoprotein. Our findings highlight Reck as a novel and pivotal modulator of the canonical Wnt signaling pathway that acts in endothelial cells to enable intracerebral vascularization and proper expression of molecular markers associated with BBB formation. Additional studies with cultured endothelial cells suggest that, in other contexts, Reck impacts vascular biology via the vascular endothelial growth factor (VEGF) cascade. Together, our findings have broad implications for both vascular and cancer biology.
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Affiliation(s)
- Florian Ulrich
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
| | - Jorge Carretero-Ortega
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
| | - Javier Menéndez
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
| | - Carlos Narvaez
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
| | - Belinda Sun
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
| | - Eva Lancaster
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
| | - Valerie Pershad
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
| | - Sean Trzaska
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
| | - Evelyn Véliz
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
| | - Makoto Kamei
- Program in Genomics of Differentiation, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Andrew Prendergast
- Department of Biological Structure, University of Washington, Seattle, WA 98195, USA
| | - Kameha R Kidd
- Program in Genomics of Differentiation, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kenna M Shaw
- Program in Genomics of Differentiation, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Daniel A Castranova
- Program in Genomics of Differentiation, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Van N Pham
- Program in Genomics of Differentiation, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Brigid D Lo
- Program in Genomics of Differentiation, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | | | - David W Raible
- Department of Biological Structure, University of Washington, Seattle, WA 98195, USA
| | - Brant M Weinstein
- Program in Genomics of Differentiation, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jesús Torres-Vázquez
- Dept of Cell Biology, Skirball Institute of Biomolecular Medicine, NYU Langone Medical Center, 540 First Avenue, New York, NY 10016, USA
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Zlotogorski-Hurvitz A, Dayan D, Chaushu G, Salo T, Vered M. Morphological and molecular features of oral fluid-derived exosomes: oral cancer patients versus healthy individuals. J Cancer Res Clin Oncol 2015; 142:101-10. [DOI: 10.1007/s00432-015-2005-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 06/15/2015] [Indexed: 11/29/2022]
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Abstract
Cardiovascular disease is the leading cause of death in Western countries. A major limitation of current treatments is the inability to efficiently repair or replace dead myocardium. Recently, stem cell-based therapies have been explored as an avenue to circumvent current therapeutic limitations. Overall, these therapies seem to result in small improvements in the contractile function of the heart. The exact mechanism(s) of action that underlie these improvements remain unknown, and it is believed that paracrine effects play a significant role. Previously, we had reported that an extract derived from bone marrow cells, in the absence of any live cell, contained cardioprotective soluble factors. In this study, we identify IL-15 as a putative cardioprotectant within the bone marrow cells paracrine profile. Using an in vitro culture system, we assessed the ability of IL-15 to protect cardiomyocytes under hypoxic conditions. For the first time, we have identified IL-15 receptors on the surface of cardiomyocytes and delineated the signaling system by which hypoxic cardiomyocytes may be protected from cellular death and rescued from oxidative stress with IL-15 treatment.
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Abstract
Tetraspanins are a family of proteins with four transmembrane domains that play a role in many aspects of cell biology and physiology; they are also used by several pathogens for infection and regulate cancer progression. Many tetraspanins associate specifically and directly with a limited number of proteins, and also with other tetraspanins, thereby generating a hierarchical network of interactions. Through these interactions, tetraspanins are believed to have a role in cell and membrane compartmentalization. In this Cell Science at a Glance article and the accompanying poster, we describe the basic principles underlying tetraspanin-based assemblies and highlight examples of how tetraspanins regulate the trafficking and function of their partner proteins that are required for the normal development and function of several organs, including, in humans, the eye, the kidney and the immune system.
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Affiliation(s)
- Stéphanie Charrin
- Inserm, U1004, F-94807, Villejuif, France Université Paris-Sud, Institut André Lwoff, F-94807 Villejuif, France
| | - Stéphanie Jouannet
- Inserm, U1004, F-94807, Villejuif, France Université Paris-Sud, Institut André Lwoff, F-94807 Villejuif, France
| | - Claude Boucheix
- Inserm, U1004, F-94807, Villejuif, France Université Paris-Sud, Institut André Lwoff, F-94807 Villejuif, France
| | - Eric Rubinstein
- Inserm, U1004, F-94807, Villejuif, France Université Paris-Sud, Institut André Lwoff, F-94807 Villejuif, France
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Mai A, Muharram G, Barrow-McGee R, Baghirov H, Rantala J, Kermorgant S, Ivaska J. Distinct c-Met activation mechanisms induce cell rounding or invasion through pathways involving integrins, RhoA and HIP1. J Cell Sci 2014; 127:1938-52. [DOI: 10.1242/jcs.140657] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
ABSTRACT
Many carcinomas have acquired oncogenic mechanisms for activating c-Met, including c-Met overexpression and excessive autocrine or paracrine stimulation with hepatocyte growth factor (HGF). However, the biological outcome of c-Met activation through these distinct modes remains ambiguous. Here, we report that HGF-mediated c-Met stimulation triggers a mesenchymal-type collective cell invasion. By contrast, the overexpression of c-Met promotes cell rounding. Moreover, in a high-throughput siRNA screen that was performed using a library of siRNAs against putative regulators of integrin activity, we identified RhoA and the clathrin-adapter protein HIP1 as crucial c-Met effectors in these morphological changes. Transient RhoA activation was necessary for the HGF-induced invasion, whereas sustained RhoA activity regulated c-Met-induced cell rounding. In addition, c-Met-induced cell rounding correlated with the phosphorylation of filamin A and the downregulation of active cell-surface integrins. By contrast, a HIP1-mediated increase in β1-integrin turnover was required for the invasion triggered by HGF. Taken together, our results indicate that c-Met induces distinct cell morphology alterations depending on the stimulus that activates c-Met.
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Affiliation(s)
- Anja Mai
- Turku Centre for Biotechnology, University of Turku, Turku 20521, Finland
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
- Department of Biochemistry and Food Chemistry, University of Turku, Turku 20521, Finland
| | - Ghaffar Muharram
- Turku Centre for Biotechnology, University of Turku, Turku 20521, Finland
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
| | - Rachel Barrow-McGee
- Spatial Signalling Team, Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London EC1M 6BQ, UK
| | - Habib Baghirov
- Turku Centre for Biotechnology, University of Turku, Turku 20521, Finland
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
| | - Juha Rantala
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
| | - Stéphanie Kermorgant
- Spatial Signalling Team, Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London EC1M 6BQ, UK
| | - Johanna Ivaska
- Turku Centre for Biotechnology, University of Turku, Turku 20521, Finland
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
- Department of Biochemistry and Food Chemistry, University of Turku, Turku 20521, Finland
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Singh B, Coffey RJ. From wavy hair to naked proteins: the role of transforming growth factor alpha in health and disease. Semin Cell Dev Biol 2014; 28:12-21. [PMID: 24631356 DOI: 10.1016/j.semcdb.2014.03.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 02/28/2014] [Accepted: 03/04/2014] [Indexed: 02/07/2023]
Abstract
Since its discovery in 1978 and cloning in 1984, transforming growth factor-alpha (TGF-α, TGFA) has been one of the most extensively studied EGF receptor (EGFR) ligands. In this review, we provide a historical perspective on TGFA-related studies, highlighting what we consider important advances related to its function in normal and disease states.
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Affiliation(s)
- Bhuminder Singh
- Departments of Medicine and Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
| | - Robert J Coffey
- Departments of Medicine and Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Veteran Affairs Medical Center, Nashville, TN 37232, USA.
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Adrain C, Freeman M. Regulation of receptor tyrosine kinase ligand processing. Cold Spring Harb Perspect Biol 2014; 6:6/1/a008995. [PMID: 24384567 DOI: 10.1101/cshperspect.a008995] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A primary mode of regulating receptor tyrosine kinase (RTK) signaling is to control access of ligand to its receptor. Many RTK ligands are synthesized as transmembrane proteins. Frequently, the active ligand must be released from the membrane by proteolysis before signaling can occur. Here, we discuss RTK ligand shedding and describe the proteases that catalyze it in flies and mammals. We focus principally on the control of EGF receptor ligand shedding, but also refer to ligands of other RTKs. Two prominent themes emerge. First, control by regulated trafficking and cellular compartmentalization of the proteases and their ligand substrates plays a key role in shedding. Second, many external signals converge on the shedding proteases and their control machinery. Proteases therefore act as regulatory hubs that integrate information that the cell receives and translate it into precise outgoing signals. The activation of signaling by proteases is therefore an essential element of the cellular communication machinery.
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Affiliation(s)
- Colin Adrain
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, United Kingdom
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Tetraspanins CD9 and CD151, epidermal growth factor receptor and cyclooxygenase-2 expression predict malignant progression in oral epithelial dysplasia. Br J Cancer 2013; 109:2864-74. [PMID: 24201754 PMCID: PMC3844903 DOI: 10.1038/bjc.2013.600] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 08/13/2013] [Accepted: 09/11/2013] [Indexed: 12/31/2022] Open
Abstract
Background: Prognostic biomarkers aim to improve on the current inadequate method of histological assessment to identify patients with oral epithelial dysplasia at greatest risk of malignant transformation. We aimed to assess the prognostic ability of six protein biomarkers linked to the epidermal growth factor receptor (EGFR) pathway, including three tetraspanins, in a large multicentre oral dysplasia cohort. Methods: One hundred and forty-eight cases with varying degrees of epithelial dysplasia underwent immunohistochemical assessment for CD9, CD151, CD82, EGFR, Her-2, and COX-2. Scoring was performed independently by two observers. Univariate analyses using both logistic and Cox regression models and a multivariate regression were performed. Results: Malignant progression was significantly greater in those cases with decreased expression of CD9 (P=0.02), and increased expression of CD151 (P=0.02), EGFR (P=0.04), and COX-2 (P=0.003). Histological grade (P=0.0002) and morphology (P=0.03) were also prognostic, whereas smoking and alcohol were not. The optimal combination by backward-variable selection was of histological grade (hazard ratio (HR) 1.64; 95% CI 1.12, 2.40), COX-2 overexpression (HR 1.12; 1.02, 1.24) and CD9 underexpression (HR 0.88; 0.80, 0.97). CD82 and Her-2 demonstrated no prognostic ability. Conclusion: This is the first study of the expression and prognostic potential of the tetraspanins in oral dysplasia. A combination of certain biomarkers with clinical factors appeared to improve the accuracy of determining the risk of malignancy in individuals with oral dysplasia. These findings may also offer potential new therapeutic approaches for this condition.
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Yang H, Shen C, Zhang B, Chen H, Chen Z, Chen J. Expression and clinicopathological significance of CD9 in gastrointestinal stromal tumor. J Korean Med Sci 2013; 28:1443-8. [PMID: 24133347 PMCID: PMC3792597 DOI: 10.3346/jkms.2013.28.10.1443] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 08/12/2013] [Indexed: 02/06/2023] Open
Abstract
This study investigated the expression and clinicopathological significance of CD9 in gastrointestinal stromal tumor (GIST). Immunohistochemistry staining for CD9 was performed on tumor tissues from 74 GIST patients. The correlation with clinicopathological features, risk classification and prognosis was analyzed. CD9-positive staining comprised 59.5% (44/74) of the GIST patients. The CD9-positive expression rate of the sample was significantly associated with diameter (P = 0.028), mitotic counts (P = 0.035), risk classification (P = 0.018) and three-year recurrence-free survival (RFS) (P < 0.001). Cox proportional hazards regression (HR = 0.352; P = 0.015) showed that CD9 is an independent factor for post-operative RFS. The subgroup analysis showed that CD9 expression in gastric stromal tumor (GST) is significantly associated with diameter (P = 0.031), risk classification (P = 0.023) and three-year RFS (P = 0.001). The Cox proportional hazards regression (HR = 0.104; P = 0.006) also showed that CD9 is an independent factor for RFS of GST. However, CD9 expression does not have a statistically significant correlation with clinicopathological features, risk classification, and prognosis in non-GST. In conclusion, CD9 expression in GIST appears to be associated with the recurrence and/or metastasis of GIST patients, especially in GST, which may indicate the important role of CD9 in the malignant biological behavior and prognosis of GST.
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Affiliation(s)
- Hongxin Yang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
- Department of Gastrointestinal Surgery of the Affiliated Hospital of Guiyang Medical University, Guiyang, Guizhou Province, China
| | - Chaoyong Shen
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Bo Zhang
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Haining Chen
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Zhixin Chen
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Jiaping Chen
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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18
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Expression and functional validation of new p38α transcriptional targets in tumorigenesis. Biochem J 2011; 434:549-58. [DOI: 10.1042/bj20101410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
p38α MAPK (mitogen-activated protein kinase) plays an important tumour suppressor role, which is mediated by both its negative effect on cell proliferation and its pro-apoptotic activity. Surprisingly, most tumour suppressor mechanisms co-ordinated by p38α have been reported to occur at the post-translational level. This contrasts with the important role of p38α in the regulation of transcription and the profound changes in gene expression that normally occur during tumorigenesis. We have analysed whole-genome expression profiles of Ras-transformed wild-type and p38α-deficient cells and have identified 202 genes that are potentially regulated by p38α in transformed cells. Expression analysis has confirmed the regulation of these genes by p38α in tumours, and functional validation has identified several of them as probable mediators of the tumour suppressor effect of p38α on Ras-induced transformation. Interestingly, approx. 10% of the genes that are negatively regulated by p38α in transformed cells contribute to EGF (epidermal growth factor) receptor signalling. Our results suggest that inhibition of EGF receptor signalling by transcriptional targets of p38α is an important function of this signalling pathway in the context of tumour suppression.
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19
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Tetraspanins and tumor progression. Clin Exp Metastasis 2010; 28:261-70. [DOI: 10.1007/s10585-010-9365-5] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2010] [Accepted: 11/30/2010] [Indexed: 02/07/2023]
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20
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Chen S, Sun Y, Jin Z, Jing X. Functional and biochemical studies of CD9 in fibrosarcoma cell line. Mol Cell Biochem 2010; 350:89-99. [PMID: 21161334 DOI: 10.1007/s11010-010-0685-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Accepted: 12/02/2010] [Indexed: 12/16/2022]
Abstract
CD9, a member of the tetraspanin family, plays important roles in a variety of cell activities. Fibrosarcoma is a malignant tumor that arises from fibroblasts. Low CD9 expression is found in fibrosarcoma tumor, but function of CD9 in fibrosarcoma has been rarely studied. In this study, stable cell lines for CD9 overexpression and vector were generated in HT1080, a human fibroscarcoma cell line, and cellular functions were widely investigated. In CD9-HT1080 cells, CD9 mainly localized in the membrane and co-localized with F-actin in the filopodia of cell surface. In functional assays, we demonstrated that CD9 could up-regulate total and active caspase-3 expression and induce cell apoptosis, but cell proliferation remained unchanged. CD9 overexpression inhibited HT1080 cell adhesion to FN but promoted cell spreading on FN. We also observed CD9 reduced cell migration using FN a chemoattractant and inhibited cell colony formation in soft agar medium. To explore the biochemical mechanism for functional changes, we investigated the effects of CD9 overexpression on cellular pathways and protein association. CD9 overexpression induced Akt phosphorylation on FN but did not change total Akt expression. Phosphorylation of p38 but not ERK was increased by CD9 overexpression, total p38 and ERK were not affected. CD9 overexpression did not affect the expression of TGFα, EGFR, β1, and EWI-2, but EWI-F expression was up-regulated. Moreover, CD9 could associate with TGFα, EGFR, β1, EWI-2, and EWI-F in HT1080 cell line. Take together, CD9 overexpression had promoting effects on cell apoptosis and cell spreading, but had inhibitory effects on cell adhesion, migration, and cell colony formation. These effects might be ascribed to CD9 associations with EWI-2/EWI-F/β1 complex and EGFR pathway, and the activation of Akt and p38 signalings as well.
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Affiliation(s)
- Shuli Chen
- Institute of Acupuncture & Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
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21
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Stoeck A, Shang L, Dempsey PJ. Sequential and gamma-secretase-dependent processing of the betacellulin precursor generates a palmitoylated intracellular-domain fragment that inhibits cell growth. J Cell Sci 2010; 123:2319-31. [PMID: 20530572 PMCID: PMC2886747 DOI: 10.1242/jcs.060830] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2010] [Indexed: 12/20/2022] Open
Abstract
Betacellulin (BTC) belongs to the family of epidermal growth factor (EGF)-like growth factors that are expressed as transmembrane precursors and undergo proteolytic ectodomain shedding to release soluble mature ligands. BTC is a dual-specificity ligand for ErbB1 and ErbB4 receptors, and can activate unique signal-transduction pathways that are beneficial for the function, survival and regeneration of pancreatic beta-cells. We have previously shown that BTC precursor (proBTC) is cleaved by ADAM10 to generate soluble ligand and a stable, transmembrane remnant (BTC-CTF). In this study, we analyzed the fate of the BTC-CTF in greater detail. We demonstrated that proBTC is cleaved by ADAM10 to produce BTC-CTF, which then undergoes intramembrane processing by presenilin-1- and/or presenilin-2-dependent gamma-secretase to generate an intracellular-domain fragment (BTC-ICD). We found that the proBTC cytoplasmic domain is palmitoylated and that palmitoylation is not required for ADAM10-dependent cleavage but is necessary for the stability and gamma-secretase-dependent processing of BTC-CTF to generate BTC-ICD. Additionally, palmitoylation is required for nuclear-membrane localization of BTC-ICD, as demonstrated by the redistribution of non-palmitoylated BTC-ICD mutant to the nucleoplasm. Importantly, a novel receptor-independent role for BTC-ICD signaling is suggested by the ability of BTC-ICD to inhibit cell growth in vitro.
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Affiliation(s)
- Alexander Stoeck
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI 48109, USA
| | - Li Shang
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI 48109, USA
| | - Peter J. Dempsey
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA
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22
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Yubero N, Jiménez-Marín A, Lucena C, Barbancho M, Garrido JJ. Immunohistochemical distribution of the tetraspanin CD9 in normal porcine tissues. Mol Biol Rep 2010; 38:1021-8. [PMID: 20585885 DOI: 10.1007/s11033-010-0198-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2010] [Accepted: 05/25/2010] [Indexed: 11/27/2022]
Abstract
The tetra-membrane-spanning protein, CD9 is a 24-27 kDa cell surface glycoprotein expressed in a wide variety of human cells being involved in a variety of cell processes, including signaling, adhesion, motility, fertilization and tumor cells metastasis. By means of a polyclonal antibody (N1) raised against recombinant swine CD9 protein, we studied the immunohistochemical expression of CD9 on different normal swine tissues. Immunochemistry shows that swine CD9 was distribute in a similar form than in human tissues, being present on epithelial cells of lung, liver, kidney, skin, tonsil, testis (epididymo), gut mucosa, uterus and mama. Furthermore, polyclonal antibody against swine CD9 reacts with white matter from cerebrum and cerebellum, peripheral nerves fibers and Hassal corpuscle from thymus and ovum. Platelets react strongly with our antibody, but monocytes and neutrophils react lightly. These results suggest that CD9 antigen should play a similar functional role in swine and human and therefore studies on CD9 on swine as an animal model would allow new knowledge about its role in adhesion, fertilization and tumor metastasis among other important biomedical processes.
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Affiliation(s)
- Noemí Yubero
- Genomics and Animal Breeding Group, Department of Genetics, University of Córdoba, Campus De Rabanales, 14014, Córdoba, Spain
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Thiol isomerases negatively regulate the cellular shedding activity of ADAM17. Biochem J 2010; 428:439-50. [PMID: 20345372 DOI: 10.1042/bj20100179] [Citation(s) in RCA: 133] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
ADAM17 (where ADAM is 'a disintegrin and metalloproteinase') can rapidly modulate cell-surface signalling events by the proteolytic release of soluble forms of proligands for cellular receptors. Many regulatory pathways affect the ADAM17 sheddase activity, but the mechanisms for the activation are still not clear. We have utilized a cell-based ADAM17 assay to show that thiol isomerases, specifically PDI (protein disulfide isomerase), could be responsible for maintaining ADAM17 in an inactive form. Down-regulation of thiol isomerases, by changes in the redox environment (for instance as elicited by phorbol ester modulation of mitochondrial reactive oxygen species) markedly enhanced ADAM17 activation. On the basis of ELISA binding studies with novel fragment antibodies against ADAM17 we propose that isomerization of the disulfide bonds in ADAM17, and the subsequent conformational changes, form the basis for the modulation of ADAM17 activity. The shuffling of disulfide bond patterns in ADAMs has been suggested by a number of recent adamalysin crystal structures, with distinct disulfide bond patterns altering the relative orientations of the domains. Such a mechanism is rapid and reversible, and the role of thiol isomerases should be investigated further as a potential factor in the redox regulation of ADAM17.
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Direct activation of TACE-mediated ectodomain shedding by p38 MAP kinase regulates EGF receptor-dependent cell proliferation. Mol Cell 2010; 37:551-66. [PMID: 20188673 DOI: 10.1016/j.molcel.2010.01.034] [Citation(s) in RCA: 200] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2009] [Revised: 11/12/2009] [Accepted: 01/23/2010] [Indexed: 12/25/2022]
Abstract
Inflammatory stimuli activate ectodomain shedding of TNF-alpha, L-selectin, and other transmembrane proteins. We show that p38 MAP kinase, which is activated in response to inflammatory or stress signals, directly activates TACE, a membrane-associated metalloprotease that is also known as ADAM17 and effects shedding in response to growth factors and Erk MAP kinase activation. p38alpha MAP kinase interacts with the cytoplasmic domain of TACE and phosphorylates it on Thr(735), which is required for TACE-mediated ectodomain shedding. Activation of TACE by p38 MAP kinase results in the release of TGF-alpha family ligands, which activate EGF receptor signaling, leading to enhanced cell proliferation. Conversely, depletion of p38alpha MAP kinase activity suppresses EGF receptor signaling and downstream Erk MAP kinase signaling, as well as autocrine EGF receptor-dependent proliferation. Autocrine EGF receptor activation through TACE-mediated ectodomain shedding intimately links inflammation and cancer progression and may play a role in stress and conditions that relate to p38 MAP kinase activation.
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Abstract
Despite high expression levels at the plasma membrane or in intracellular vesicles, tetraspanins remain among the most mysterious transmembrane molecules 20 years after their discovery. Several genetic studies in mammals and invertebrates have demonstrated key physiological roles for some of these tetraspanins, in particular in the immune response, sperm-egg fusion, photoreceptor function and the normal function of certain epithelia. Other studies have highlighted their ability to modulate cell migration and metastasis formation. Their role in the propagation of infectious agents has drawn recent attention, with evidence for HIV budding in tetraspanin-enriched plasma membrane domains. Infection of hepatocytic cells by two major pathogens, the hepatitis C virus and the malaria parasite, also requires the tetraspanin CD81. The function of tetraspanins is thought to be linked to their ability to associate with one another and a wealth of other integral proteins, thereby building up an interacting network or 'tetraspanin web'. On the basis of the biochemical dissection of the tetraspanin web and recent analysis of the dynamics of some of its constituents, we propose that tetraspanins tightly regulate transient interactions between a variety of molecules and as such favour the efficient assembly of specialized structures upon proper stimulation.
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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
Tumours progress through a cascade of events that enable the formation of metastases. Some of the components that are required for this fatal process are well established. Tetraspanins, however, have only recently received attention as both metastasis suppressors and metastasis promoters. This late appreciation is probably due to their capacity to associate with various molecules, which they recruit into special membrane microdomains, and their abundant presence in tumour-derived small vesicles that aid intercellular communication. It is reasonable to assume that differences in the membrane and vesicular web components that associate with individual tetraspanins account for their differing abilities to promote and suppress metastasis.
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Affiliation(s)
- Margot Zöller
- Department of Tumour Cell Biology, University Hospital of Surgery, Heidelberg, Germany.
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