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Bailly C, Bedart C, Vergoten G. A molecular docking exploration of the large extracellular loop of tetraspanin CD81 with small molecules. In Silico Pharmacol 2024; 12:24. [PMID: 38584777 PMCID: PMC10997574 DOI: 10.1007/s40203-024-00203-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 03/13/2024] [Indexed: 04/09/2024] Open
Abstract
Tetraspanin CD81 is a transmembrane protein used as a co-receptor by different viruses and implicated in some cancer and inflammatory diseases. The design of therapeutic small molecules targeting CD81 lags behind monoclonal antibodies and peptides but different synthetic and natural products binding to CD81 have been identified. We have investigated the interaction between synthetic compounds and CD81, considering both the cholesterol-bound full-length receptor and a truncated protein corresponding to the large extracellular loop (LEL) of the tetraspanin. They represent the closed and open conformations of the protein, respectively. Stable complexes were characterized with bi-aryl compounds (notably the quinolinone-benzothiazole 6) and atypical molecules bearing a 1-amino-boraadamantane scaffold well adapted to interact with CD81 (5a-d). In each case, the mode of binding to CD81 was analyzed, the binding sites identified and the molecular contacts determined. The narrow intra-LEL binding site of CD81 can accommodate the elongated bi-aryl 6 but not a series of isosteric compounds with a bis(bicyclic) scaffold. The bora-adamantane derivatives appeared to bind well to CD81, but essentially to the external surface of the protein loop. The binding selectivity of the compounds was assessed comparing binding to the LEL of tetraspanins CD81, CD9 and Tspan15. A net preference for CD81 over CD9 was evidenced, but the LEL of Tspan15 also provided a suitable binding site for the compounds, notably for the bora-adamantane derivatives. This work provides an aid to the identification and design of tetraspanin-binding small molecules, underlining the distinct behavior of the open and closed conformation of the protein for drug binding. Supplementary Information The online version contains supplementary material available at 10.1007/s40203-024-00203-6.
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Affiliation(s)
- Christian Bailly
- OncoWitan, Scientific Consulting Office, 59290 Lille, Wasquehal, France
- University of Lille, CNRS, Inserm, CHU Lille, UMR9020-U1277, CANTHER, Cancer Heterogeneity Plasticity and Resistance to Therapies, 59000 Lille, France
| | - Corentin Bedart
- University of Lille, Inserm, U1286, INFINITE, Lille Inflammation Research International Center, Institut de Chimie Pharmaceutique Albert Lespagnol (ICPAL)Faculté de Pharmacie, 3 rue du Professeur Laguesse, 59,000 Lille, France
| | - Gérard Vergoten
- University of Lille, Inserm, U1286, INFINITE, Lille Inflammation Research International Center, Institut de Chimie Pharmaceutique Albert Lespagnol (ICPAL)Faculté de Pharmacie, 3 rue du Professeur Laguesse, 59,000 Lille, France
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2
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Alawar N, Schirra C, Hohmann M, Becherer U. A solution for highly efficient electroporation of primary cytotoxic T lymphocytes. BMC Biotechnol 2024; 24:16. [PMID: 38532411 DOI: 10.1186/s12896-024-00839-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/21/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND Cytotoxic T lymphocytes (CTLs) are central players in the adaptive immune response. Their functional characterization and clinical research depend on efficient and reliable transfection. Although various methods have been utilized, electroporation remains the preferred technique for transient gene over-expression. However, the efficiency of electroporation is reduced for human and mouse primary CTLs. Lonza offers kits that effectively improve plasmid DNA transfection quality. Unfortunately, the removal of key components of the cell recovery medium considerably reduced the efficiency of their kit for CTLs. Our aim was to develop a new recovery medium to be used with Lonza's Nucleofector system that would significantly enhance transfection rates. RESULTS We assessed the impact of different media in which the primary CTLs were placed to recover after electroporation on cell survival, transfection rate and their ability to form an immunological synapse and to perform exocytosis. We transfected the cells with pmax-GFP and large constructs encoding for either CD81-super ecliptic pHluorin or granzyme B-pHuji. The comparison of five different media for mouse and two for human CTLs demonstrated that our new recovery medium composed of Opti-MEM-GlutaMAX supplemented with HEPES, DMSO and sodium pyruvate gave the best result in cell survival (> 50%) and transfection rate (> 30 and 20% for mouse and human cells, respectively). More importantly, the functionality of CTLs was at least twice as high as with the original Lonza recovery medium. In addition, our RM significantly improved transfection efficacy of natural killer cells that are notoriously hard to electroporate. CONCLUSION Our results show that successful transfection depends not only on the electroporation medium and pulse sequence but also on the medium applied for cell recovery. In addition, we have reduced our reliance on proprietary products by designing an effective recovery medium for both mouse and human primary CTLs and other lymphocytes that can be easily implemented by any laboratory. We expect that this recovery medium will have a significant impact on both fundamental and applied research in immunology.
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Affiliation(s)
- Nadia Alawar
- Department of Cellular Neurophysiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University, Homburg, 66421, Germany
| | - Claudia Schirra
- Department of Cellular Neurophysiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University, Homburg, 66421, Germany
| | - Meltem Hohmann
- Department of Cellular Neurophysiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University, Homburg, 66421, Germany
| | - Ute Becherer
- Department of Cellular Neurophysiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University, Homburg, 66421, Germany.
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Shao S, Bu Z, Xiang J, Liu J, Tan R, Sun H, Hu Y, Wang Y. The role of Tetraspanins in digestive system tumor development: update and emerging evidence. Front Cell Dev Biol 2024; 12:1343894. [PMID: 38389703 PMCID: PMC10882080 DOI: 10.3389/fcell.2024.1343894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/22/2024] [Indexed: 02/24/2024] Open
Abstract
Digestive system malignancies, including cancers of the esophagus, pancreas, stomach, liver, and colorectum, are the leading causes of cancer-related deaths worldwide due to their high morbidity and poor prognosis. The lack of effective early diagnosis methods is a significant factor contributing to the poor prognosis for these malignancies. Tetraspanins (Tspans) are a superfamily of 4-transmembrane proteins (TM4SF), classified as low-molecular-weight glycoproteins, with 33 Tspan family members identified in humans to date. They interact with other membrane proteins or TM4SF members to form a functional platform on the cytoplasmic membrane called Tspan-enriched microdomain and serve multiple functions including cell adhesion, migration, propagation and signal transduction. In this review, we summarize the various roles of Tspans in the progression of digestive system tumors and the underlying molecular mechanisms in recent years. Generally, the expression of CD9, CD151, Tspan1, Tspan5, Tspan8, Tspan12, Tspan15, and Tspan31 are upregulated, facilitating the migration and invasion of digestive system cancer cells. Conversely, Tspan7, CD82, CD63, Tspan7, and Tspan9 are downregulated, suppressing digestive system tumor cell metastasis. Furthermore, the connection between Tspans and the metastasis of malignant bone tumors is reviewed. We also summarize the potential role of Tspans as novel immunotherapy targets and as an approach to overcome drug resistance. Finally, we discuss the potential clinical value and therapeutic targets of Tspans in the treatments of digestive system malignancies and provide some guidance for future research.
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Affiliation(s)
- Shijie Shao
- Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Zhen Bu
- Department of General Surgery, Xinyi People's Hospital, Xinyi, China
| | - Jinghua Xiang
- Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Jiachen Liu
- Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Rui Tan
- Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Han Sun
- Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Yuanwen Hu
- Department of Gastroenterology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, China
| | - Yimin Wang
- Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, China
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Ortega MA, Sánchez-Gil MA, Fraile-Martínez O, García-Montero C, Guijarro LG, Diaz-Pedrero R, Lopez-Gonzalez L, De Leon-Luis J, Bravo C, Álvarez-Mon M, Bujan J, Saez MA, García-Honduvilla N. Increased Expression of Tetraspanins, ALIX and HSP-70 in the Placenta Tissue of Women with Chronic Venous Disease during Pregnancy. Int J Med Sci 2023; 20:1744-1754. [PMID: 37928882 PMCID: PMC10620863 DOI: 10.7150/ijms.87830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 09/01/2023] [Indexed: 11/07/2023] Open
Abstract
Chronic venous disease (CVD) is a complex and common vascular disorder characterized by increased blood pressure and morpho-functional changes in the venous system like varicose veins. Pregnancy is one of the main risk factors for suffering from this condition. Despite the consequences of CVD during pregnancy remains to be fully understood, compelling evidence support that this condition represents an important stress for the mother and the fetus, leading to significant histopathological changes in the placenta. Tetraspanins (CD9, CD63, and CD81), ALG-2-interacting protein X (Alix), and heat-shock protein (HSP-70) are cellular components involved in multiple biological processes under homeostatic and disease conditions. Despite some studies that have evidence of their relevance in the placenta tissue and pathological pregnancies, there is limited knowledge regarding their role in pregnancy-associated CVD. In this sense, the present work aims to analyze gene and protein expression of these components in the placenta of women with CVD (n=62) in comparison to healthy women (n=52) through RT-qPCR and immunohistochemistry, respectively. Our results show an increased gene and protein expression of the different studied markers, suggesting their potential involvement in the pathological environment of the placenta of women who undergo CVD during pregnancy. In this sense, further studies should be directed to deep into the potential implications of these changes to understand the effects and consequences of this condition in maternofetal wellbeing.
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Affiliation(s)
- Miguel A Ortega
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - María Asunción Sánchez-Gil
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- University Defense Center of Madrid (CUD), Madrid, Spain
| | - Oscar Fraile-Martínez
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Cielo García-Montero
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Luis G Guijarro
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Unit of Biochemistry and Molecular Biology, Centro de Investigación Biomédica en Red en El Área Temática de Enfermedades Hepáticas (CIBEREHD), Department of System Biology, University of Alcalá, Alcala de Henares, Spain
| | - Raúl Diaz-Pedrero
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Department of General and Digestive Surgery, University Hospital Príncipe de Asturias, 28805 Madrid, Spain
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain
| | - Laura Lopez-Gonzalez
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, Spain
| | - Juan De Leon-Luis
- Department of Obstetrics and Gynecology, University Hospital Gregorio Marañón, Madrid, Spain
- Health Research Institute Gregorio Marañón, Madrid, Spain
- Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Ma-drid, Madrid, Spain
| | - Coral Bravo
- Department of Obstetrics and Gynecology, University Hospital Gregorio Marañón, Madrid, Spain
- Health Research Institute Gregorio Marañón, Madrid, Spain
- Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Ma-drid, Madrid, Spain
| | - Melchor Álvarez-Mon
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Immune System Diseases-Rheumatology, Oncology Service an Internal Medicine, Centro de Investigación Biomédica en Red en El Área Temática de Enfermedades Hepáticas (CIBEREHD), University Hospital Príncipe de Asturias, Alcala de Henares, Spain
| | - Julia Bujan
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Miguel A Saez
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Pathological Anatomy Service, Central University Hospital of Defence-UAH, 28047 Madrid, Spain
| | - Natalio García-Honduvilla
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- University Defense Center of Madrid (CUD), Madrid, Spain
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Rydland A, Heinicke F, Flåm ST, Mjaavatten MD, Lie BA. Small extracellular vesicles have distinct CD81 and CD9 tetraspanin expression profiles in plasma from rheumatoid arthritis patients. Clin Exp Med 2023; 23:2867-2875. [PMID: 36826611 PMCID: PMC10543154 DOI: 10.1007/s10238-023-01024-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 02/06/2023] [Indexed: 02/25/2023]
Abstract
Extracellular vesicles (EVs) are implicated in the pathogenesis of rheumatoid arthritis (RA) but little is known about the composition of specific small EV (sEV) subpopulations. This study aimed to characterize the CD63, CD81 and CD9 tetraspanin profile in the membrane of single EVs in plasma from treatment naïve RA patients and assess potential discrepancies between methotrexate (MTX) responder groups. EVs isolated from plasma were characterized using transmission electron microscopy, and detection of surface markers (CD63, CD81 and CD9) on single EVs was performed on the ExoView platform. All RA patients (N = 8) were newly diagnosed, treatment naïve, females, ACPA positive and former smokers. The controls (N = 5) were matched for age and gender. After three months of MTX treatment, responders (N = 4) were defined as those with ΔDAS28 > 1.2 and DAS28 ≤ 3.2 post-treatment. The isolated EVs were 50-200 nm in size. The RA patients had a higher proportion of both CD9 and CD81 single positive sEVs compared to healthy controls, while there was a decrease in CD81/CD9 double positive sEVs in patients. Stratification of RA patients into MTX responders and non-responders revealed a distinctly higher proportion of CD81 single positive sEVs in the responder group. The proportion of CD81/CD9 double positive sEVs (anti-CD9 captured) was lower in the non-responders, but increased upon 3 months of MTX treatment. Our exploratory study revealed distinct tetraspanin profiles in RA patients suggesting their implication in RA pathophysiology and MTX treatment response.
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Affiliation(s)
- Anne Rydland
- Department of Medical Genetics, University of Oslo and Oslo University Hospital, Oslo, Norway.
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway.
| | - Fatima Heinicke
- Department of Medical Genetics, University of Oslo and Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
| | - Siri T Flåm
- Department of Medical Genetics, University of Oslo and Oslo University Hospital, Oslo, Norway
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
| | - Maria D Mjaavatten
- Division of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
| | - Benedicte A Lie
- Department of Medical Genetics, University of Oslo and Oslo University Hospital, Oslo, Norway.
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
- Department of Immunology, Oslo University Hospital, Oslo, Norway.
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway.
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Panwar D, Shrivastava D, Kumar A, Gupta LK, Kumar NSS, Chintagunta AD. Efficient strategy to isolate exosomes using anti-CD63 antibodies conjugated to gold nanoparticles. AMB Express 2023; 13:90. [PMID: 37639159 PMCID: PMC10462597 DOI: 10.1186/s13568-023-01592-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/03/2023] [Indexed: 08/29/2023] Open
Abstract
Exosomes, a subpopulation of Extracellular vesicles (EVs), are cell-secreted vesicles found in the majority of biological fluids, including breast milk, tears, sweat, blood and, urine. The density and size of these vesicles depend on a variety of factors, including age, gender and the biological condition of the individual. Researchers are now focusing on the selective extraction of exosomes from bodily fluids due to the unique biomolecule composition of exosomes, which is critical for diagnosis, disease, and regeneration. Furthermore, current approaches for exosome isolation have limitations, necessitating the development of a simpler and more effective technique to achieve this goal. In this study, we investigated a quick and effective strategy for isolating exosomes from serum using a bench-top centrifuge. This was accomplished by raising antibodies against exosome surface tetraspanins (CD9, CD63 & CD81) in Leghorn chickens due to their phylogenetic distance from humans and cost-effectiveness for commercial use. In order to separate exosomes from a complex biological fluid, the antibodies were further coupled with gold nanoparticles (AuNPs). The findings were validated using ELISA, spectrophotometry, and transmission electron microscopy (TEM). Using this technique, exosome isolation from serum was achieved rapidly and these were captured by using anti CD63 antibodies bound to AuNPs. To summarize, exosomes were purified from serum using anti-CD63 antibodies conjugated to gold nanoparticles (IgY@AuNPs). Consequently, the approach for exosome isolation from biological fluid could be useful for clinically monitoring the biological state of the patients.
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Affiliation(s)
- Dikshita Panwar
- Vignan's Foundation for Science, Technology and Research, Guntur -Tenali Rd, Vadlamudi, 522213, Andhra Pradesh, India
| | - Deepali Shrivastava
- Vignan's Foundation for Science, Technology and Research, Guntur -Tenali Rd, Vadlamudi, 522213, Andhra Pradesh, India
| | - Arvind Kumar
- IgY Immunologix India Private Limited, Narsingi, Rangareddy, Hyderabad, 500089, Telangana, India
| | - Lavleen Kumar Gupta
- IgY Immunologix India Private Limited, Narsingi, Rangareddy, Hyderabad, 500089, Telangana, India.
| | - N S Sampath Kumar
- Vignan's Foundation for Science, Technology and Research, Guntur -Tenali Rd, Vadlamudi, 522213, Andhra Pradesh, India
| | - Anjani Devi Chintagunta
- Vignan's Foundation for Science, Technology and Research, Guntur -Tenali Rd, Vadlamudi, 522213, Andhra Pradesh, India.
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Jubber I, Morhardt DR, Griffin J, Cumberbatch M, Glover M, Zheng Y, Rehman I, Loynes C, Hussain SA, Renshaw SA, Leach SD, Cunliffe VT, Catto JWF. Analysis of the distal urinary tract in larval and adult zebrafish reveals homology to the human system. Dis Model Mech 2023:316638. [PMID: 37293698 PMCID: PMC10387350 DOI: 10.1242/dmm.050110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/30/2023] [Indexed: 06/10/2023] Open
Abstract
Little is known about the distal excretory component of the urinary tract in Danio rerio (zebrafish). This component is affected by many human diseases and disorders of development. Here, we undertook multi-level analyses to determine the structure and composition of the distal urinary tract in the zebrafish. In silico searches identified uroplakin 1a, 2-like and 3-like genes in the zebrafish genome (orthologues to genes that encode urothelium-specific proteins in humans). In situ hybridization demonstrated uroplakin-1a expression in the zebrafish pronephros and cloaca from 96 hours post-fertilisation. H&E sectioning of adult zebrafish demonstrated two mesonephric ducts uniting into a urinary bladder which leads to a distinct urethral opening. Immunohistochemistry identified Uroplakin 1a and 2 expression and Gata3 expression in zebrafish urinary bladder cell layers that match human urothelial expression. Fluorescent dye injections demonstrated zebrafish urinary bladder function, including urine storage, intermittent micturition, and a urethral orifice separate from the larger anal canal and rectum. Our findings reveal homology between the urinary tracts of zebrafish and humans and offer the former as a model system to study disease.
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Affiliation(s)
- Ibrahim Jubber
- Department of Oncology and Human Metabolism, University of Sheffield, Sheffield, UK
- Department of Urology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Duncan R Morhardt
- Department of Molecular and Systems Biology, Dartmouth Cancer Center, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Jonathan Griffin
- Department of Oncology and Human Metabolism, University of Sheffield, Sheffield, UK
- Department of Histopathology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
- Healthy Lifespan and Neuroscience Institute, Department of Biosciences, University of Sheffield, Sheffield, UK
| | - Marcus Cumberbatch
- Department of Oncology and Human Metabolism, University of Sheffield, Sheffield, UK
- Department of Urology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Maggie Glover
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Yang Zheng
- Department of Molecular and Systems Biology, Dartmouth Cancer Center, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Ishtiaq Rehman
- Department of Oncology and Human Metabolism, University of Sheffield, Sheffield, UK
| | - Catherine Loynes
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Syed A Hussain
- Department of Oncology and Human Metabolism, University of Sheffield, Sheffield, UK
- Department of Medical Oncology, Weston Park Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Stephen A Renshaw
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Steven D Leach
- Department of Molecular and Systems Biology, Dartmouth Cancer Center, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Vincent T Cunliffe
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
- School of Biosciences, University of Sheffield, Firth Court, Western Bank, Sheffield, UK
| | - James W F Catto
- Department of Oncology and Human Metabolism, University of Sheffield, Sheffield, UK
- Department of Urology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
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8
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Mei X, Qiao P, Ma H, Qin S, Song X, Zhao Q, Shen D. Bombyx mori Tetraspanin A (BmTsp.A) is a facilitator in BmNPV invasion by regulating apoptosis. Dev Comp Immunol 2023; 146:104736. [PMID: 37207976 DOI: 10.1016/j.dci.2023.104736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 05/21/2023]
Abstract
BmTsp.A (Bombyx mori Tetraspanin A) is one of the four transmembrane proteins which are capable to regulate multiple aspects of the immune response and are involved in various stages of viral invasion of the hosts. This study focused on the sequence features, analysis of expression pattern, as well as the effect of BmTsp.A on BmNPV (Bombyx mori nucleopolyhedrovirus) infection in the apoptotic pathway. BmTsp.A features the typical tetraspanins family, including four transmembrane domains and a major large extracellular loop domain. It is highly expressed specifically in the malpighian tubes, and its expression is increased by BmNPV induction for 48 h and 72 h. Overexpression and RNAi (RNA interference) mediated by siRNA reveal that BmTsp.A can promote the infection and replication of the virus. In addition, the overexpression of BmTsp.A regulates BmNPV-induced apoptosis, leading to changes in the expression of apoptosis-related genes and thus affecting viral proliferation. When subjected to stimulation by BmNPV infection, on the one hand, BmTsp.A inhibits Bmp53 through a Caspase-dependent pathway, which consequently promotes the expression of Bmbuffy, thereby activating BmICE to inhibit apoptosis and causing the promotion of viral proliferation. On the other hand, BmTsp.A inhibits the expression of BmPTEN and BmPkc through the phosphatidylinositol 3 kinase (PI3K)/protein kinaseB(AKT) signaling pathway, thus affecting the regulation of apoptosis. To summarize, our results demonstrate that BmTsp.A promotes viral infection and replication by inhibiting apoptosis, which is fundamental for understanding the pathogenesis of BmNPV and the immune defense mechanism of silkworm.
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Affiliation(s)
- Xianghan Mei
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, China.
| | - Peitong Qiao
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, China.
| | - Hengheng Ma
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, China.
| | - Siyu Qin
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, China.
| | - Xia Song
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, China.
| | - Qiaoling Zhao
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, China.
| | - Dongxu Shen
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, China.
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9
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York SB, Hurwitz SN, Liu X, Meckes DG. Ceramide-dependent trafficking of Epstein-Barr virus LMP1 to small extracellular vesicles. Virology 2023; 581:128-138. [PMID: 36958217 DOI: 10.1016/j.virol.2023.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/14/2023] [Accepted: 02/21/2023] [Indexed: 03/11/2023]
Abstract
Epstein-Barr virus (EBV) is a human herpesvirus that is associated with a multitude of cancers. The primary EBV oncogene latent membrane protein 1 (LMP1) is secreted from infected cancer cells in small extracellular vesicles (EVs). Additionally, the tetraspanin protein CD63 forms a complex with LMP1 and CD63 can be trafficked to EVs through a ceramide-dependent manner. Therefore, we hypothesize that ceramide is required for efficient packaging of LMP1 into small EVs. Following treatment with the neutral sphingomyelinase inhibitor GW4869, LMP1 cellular localization was disrupted and immunoblotting of EV lysates revealed a significant reduction in extracellular LMP1. NTA of EVs from the LCLs treated with GW4869 demonstrated a significant decrease in particle secretion. Additionally, ceramide inhibition resulted in enhanced LMP1-mediated NFkB activation in EV producing cells. Taken together, these data reveal a critical role for the lipid ceramide in LMP1 exosomal trafficking and the oncogenic signaling properties of the viral protein.
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Affiliation(s)
- Sara B York
- Florida State University College of Medicine, Department of Biomedical Sciences, Tallahassee, FL, 32306, USA.
| | - Stephanie N Hurwitz
- Florida State University College of Medicine, Department of Biomedical Sciences, Tallahassee, FL, 32306, USA
| | - Xia Liu
- Florida State University College of Medicine, Department of Biomedical Sciences, Tallahassee, FL, 32306, USA
| | - David G Meckes
- Florida State University College of Medicine, Department of Biomedical Sciences, Tallahassee, FL, 32306, USA
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10
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Suwatthanarak T, Ito K, Tanaka M, Sugiura K, Hoshino A, Miyamoto Y, Miyado K, Okochi M. A peptide binding to the tetraspanin CD9 reduces cancer metastasis. Biomater Adv 2023; 146:213283. [PMID: 36640525 DOI: 10.1016/j.bioadv.2023.213283] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/29/2022] [Accepted: 01/02/2023] [Indexed: 01/07/2023]
Abstract
As an organizer of multi-molecular membrane complexes, the tetraspanin CD9 has been implicated in a number of biological processes, including cancer metastasis, and is a candidate therapeutic target. Here, we evaluated the suppressive effects of an eight-mer CD9-binding peptide (CD9-BP) on cancer cell metastasis and its mechanisms of action. CD9-BP impaired CD9-related functions by adversely affecting the formation of tetraspanin webs-networks composed of CD9 and its partner proteins. The anti-cancer metastasis effect of CD9-BP was evidenced by the in vitro inhibition of cancer cell migration and invasion as well as exosome secretion and uptake, which are essential processes during metastasis. Finally, using a mouse model, we showed that CD9-BP reduced lung metastasis in vivo. These findings provide insight into the mechanism by which CD9-BP inhibits CD9-dependent functions and highlight its potential application as an alternative therapeutic nano-biomaterial for metastatic cancers.
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Affiliation(s)
- Thanawat Suwatthanarak
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan; Siriraj Cancer Center, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkok Noi, Bangkok 10700, Thailand; Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkok Noi, Bangkok 10700, Thailand
| | - Kazuma Ito
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan; Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa 226-8501, Japan
| | - Kei Sugiura
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa 226-8501, Japan
| | - Ayuko Hoshino
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa 226-8501, Japan
| | - Yoshitaka Miyamoto
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Mina Okochi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
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11
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Huang Y, Yu L. Tetraspanin-enriched microdomains: The building blocks of migrasomes. Cell Insight 2022; 1:100003. [PMID: 37192987 PMCID: PMC10120322 DOI: 10.1016/j.cellin.2021.100003] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/07/2021] [Accepted: 12/07/2021] [Indexed: 05/18/2023]
Abstract
The migrasome is a newly discovered organelle of migrating cells. Migrasomes play diverse physiological roles including mitochondrial quality control, lateral transfer of material between cells, and delivery of signaling molecules to spatially defined locations. The formation of migrasomes is dependent on tetraspanins, a group of membrane proteins containing four transmembrane domains, which form membrane microdomains named tetraspanin-enriched microdomains (TEMs). In this review, we will discuss the mechanisms for migrasome biogenesis, with a focus on the role of TEMs and the organizing principles underlying the formation of TEMs.
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Affiliation(s)
- Yuwei Huang
- State Key Laboratory of Membrane Biology, Beijing Frontier Research Center for Biological Structure, School of Life Science, Tsinghua University-Peking University Joint Center for Life Sciences, Tsinghua University, Beijing, China
| | - Li Yu
- State Key Laboratory of Membrane Biology, Beijing Frontier Research Center for Biological Structure, School of Life Science, Tsinghua University-Peking University Joint Center for Life Sciences, Tsinghua University, Beijing, China
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12
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Garcia-Mayea Y, Mir C, Carballo L, Sánchez-García A, Bataller M, LLeonart ME. TSPAN1, a novel tetraspanin member highly involved in carcinogenesis and chemoresistance. Biochim Biophys Acta Rev Cancer 2021; 1877:188674. [PMID: 34979155 DOI: 10.1016/j.bbcan.2021.188674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/22/2021] [Accepted: 12/27/2021] [Indexed: 12/11/2022]
Abstract
The tetraspanin (TSPAN) family constitutes a poorly explored family of membrane receptors involved in various physiological processes, with relevant roles in anchoring multiple proteins, acting as scaffolding proteins, and cell signaling. Recent studies have increasingly demonstrated the involvement of TSPANs in cancer. In particular, tetraspanin 1 (also known as TSPAN1, NET-1, TM4C, C4.8 or GEF) has been implicated in cell survival, proliferation and invasion. Recently, our laboratory revealed a key role of TSPAN1 in the acquired resistance of tumor cells to conventional chemotherapy (e.g., cisplatin). In this review, we summarize and discuss the latest research on the physiological mechanisms of TSPANs in cancer and, in particular, on TSPAN1 regulating resistance to chemotherapy. A model of TSPAN1 action is proposed, and the potential of targeting TSPAN1 in anticancer therapeutic strategies is discussed.
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Affiliation(s)
- Yoelsis Garcia-Mayea
- Biomedical Research in Cancer Stem Cells Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Cristina Mir
- Biomedical Research in Cancer Stem Cells Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Laia Carballo
- Biomedical Research in Cancer Stem Cells Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Almudena Sánchez-García
- Biomedical Research in Cancer Stem Cells Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Marina Bataller
- Biomedical Research in Cancer Stem Cells Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Matilde E LLeonart
- Biomedical Research in Cancer Stem Cells Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain; Spanish Biomedical Research Network Center in Oncology, CIBERONC, Spain.
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13
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Morasso C, Ricciardi A, Sproviero D, Truffi M, Albasini S, Piccotti F, Sottotetti F, Mollica L, Cereda C, Sorrentino L, Corsi F. Fast quantification of extracellular vesicles levels in early breast cancer patients by Single Molecule Detection Array (SiMoA). Breast Cancer Res Treat 2021; 192:65-74. [PMID: 34935096 PMCID: PMC8841315 DOI: 10.1007/s10549-021-06474-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 12/02/2021] [Indexed: 10/25/2022]
Abstract
PURPOSE Preliminary reports suggest that extracellular vesicles (EVs) might be a promising biomarker for breast cancer (BC). However, the quantification of plasmatic levels of EVs is a complex task. To overcome these limitations, we developed a new, fast, and easy to use assay for the quantification of EVs directly in plasma based on the use of Single-Molecule Array (SiMoA). METHODS By using SiMoA to identify CD9+/CD63+ EVs, we analyzed plasma samples of 181 subjects (95 BC and 86 healthy controls, HC). A calibration curve, made of a serial dilution of lyophilized standards from human plasma, was used in each run to ensure the obtainment of quantitative results from the assay. In a subgroup of patients, EVs concentrations were estimated in plasma before and after 30 days from cancer surgery. Additional information on the size of EVs were also acquired using a Nanosight system to obtain a clearer understanding of the mechanism underlying the releases of EVs associated with the presence of cancer. RESULTS The measured levels of EVs resulted significantly higher in BC patients (median values 1179.1 ng/µl vs 613.0 ng/µl, p < 0.0001). ROC curve was used to define the optimal cut-off level of the test at 1034.5 ng/µl with an AUC of 0.75 [95% CI 0.68-0.82]. EVs plasmatic concentrations significantly decreased after cancer surgery compared to baseline values (p = 0.014). No correlation was found between EVs concentration and clinical features of BC. CONCLUSION SiMoA assay allows plasmatic EVs levels detection directly without any prior processing. EVs levels are significantly higher in BC patients and significantly decreases after cancer surgery.
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Affiliation(s)
- Carlo Morasso
- Laboratory of Nanomedicine, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Alessandra Ricciardi
- Laboratory of Nanomedicine, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Daisy Sproviero
- Genomic and Post-Genomic Center, IRCCS Mondino Foundation, Pavia, Italy
| | - Marta Truffi
- Laboratory of Nanomedicine, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Sara Albasini
- Breast Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Francesca Piccotti
- Laboratory of Nanomedicine, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Federico Sottotetti
- Medical Oncology Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Ludovica Mollica
- Medical Oncology Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Cristina Cereda
- Genomic and Post-Genomic Center, IRCCS Mondino Foundation, Pavia, Italy
| | - Luca Sorrentino
- Colorectal Surgery Unit, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Fabio Corsi
- Breast Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy. .,Dipartimento di Scienze Biomediche e Cliniche "L. Sacco", Università di Milano, Via G.B. Grassi, 74, 20157, Milan, Italy.
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14
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Nair TS, Kakaraparthi BN, Yang L, Lu L, Thomas TB, Morris AC, Kommareddi P, Kanicki A, Carey TE. Slc44a2 deletion alters tetraspanin and N-cadherin expression: Reduced adhesion and enhanced proliferation in cultured mesenchymal lung cells. Tissue Cell 2021; 73:101599. [PMID: 34371293 DOI: 10.1016/j.tice.2021.101599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 07/11/2021] [Accepted: 07/23/2021] [Indexed: 10/20/2022]
Abstract
Slc44a2 is reported to interact with tetraspanins CD9 and CD81. To investigate how Slc44a2 affects adhesion protein expression, cells from wild-type (WT) Slc44a2+/+, heterozygous (HET) Slc44a2+/-, and knockout (KO) Slc44a2-/- mice were cultured from lung tissue. The cultured cells expressed vimentin, N-cadherin, p120 catenin, beta-catenin, actin, CD9, and CD81, but not E-cadherin. Vimentin expression with lack of E-cadherin indicated that the cultured cells were of mesenchymal origin. Slc44a2 KO cells and HET cells demonstrated lower adherence and faster proliferation than the WT cells. All three groups displayed dramatically altered intracellular distribution of N-cadherin, CD9, and CD81. The CD9 membrane foci observed in WT cell membranes were less frequent and diminished in size in HET cells and KO cells. N-cadherin was dispersed throughout both the cytoplasm and membrane in WT cells, with similar yet weaker distribution in HET cells; however, in KO cells, N-cadherin was densely aggregated in the perinuclear cytoplasm. CD81 had a distribution pattern in WT, HET, and KO cells similar to that of N-cadherin with dense cytoplasmic clusters in the cells. KO cells also exhibited reduced filamentous actin as compared to WT cells. These results suggest that Slc44a2 is necessary for proper cellular localization of adhesion proteins and growth regulation that may be related to altered adhesion signals.
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Affiliation(s)
- Thankam S Nair
- Kresge Hearing Research Institute, Department of Otolaryngology-Head & Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109-5616, United States
| | - Bala Naveen Kakaraparthi
- Kresge Hearing Research Institute, Department of Otolaryngology-Head & Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109-5616, United States
| | - Lucy Yang
- Kresge Hearing Research Institute, Department of Otolaryngology-Head & Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109-5616, United States
| | - Lillian Lu
- Kresge Hearing Research Institute, Department of Otolaryngology-Head & Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109-5616, United States
| | - Trey B Thomas
- Kresge Hearing Research Institute, Department of Otolaryngology-Head & Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109-5616, United States
| | - Anna C Morris
- Kresge Hearing Research Institute, Department of Otolaryngology-Head & Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109-5616, United States
| | - Pavan Kommareddi
- Kresge Hearing Research Institute, Department of Otolaryngology-Head & Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109-5616, United States
| | - Ariane Kanicki
- Kresge Hearing Research Institute, Department of Otolaryngology-Head & Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109-5616, United States
| | - Thomas E Carey
- Kresge Hearing Research Institute, Department of Otolaryngology-Head & Neck Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109-5616, United States.
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15
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Roy PK, Rajesh Y, Mandal M. Therapeutic targeting of membrane-associated proteins in central nervous system tumors. Exp Cell Res 2021; 406:112760. [PMID: 34339674 DOI: 10.1016/j.yexcr.2021.112760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/28/2021] [Accepted: 07/28/2021] [Indexed: 12/09/2022]
Abstract
The activity of the most complex system, the central nervous system (CNS) is profoundly regulated by a huge number of membrane-associated proteins (MAP). A minor change stimulates immense chemical changes and the elicited response is organized by MAP, which acts as a receptor of that chemical or channel enabling the flow of ions. Slight changes in the activity or expression of these MAPs lead to severe consequences such as cognitive disorders, memory loss, or cancer. CNS tumors are heterogeneous in nature and hard-to-treat due to random mutations in MAPs; like as overexpression of EGFRvIII/TGFβR/VEGFR, change in adhesion molecules α5β3 integrin/SEMA3A, imbalance in ion channel proteins, etc. Extensive research is under process for developing new therapeutic approaches using these proteins such as targeted cytotoxic radiotherapy, drug-delivery, and prodrug activation, blocking of receptors like GluA1, developing viral vector against cell surface receptor. The combinatorial approach of these strategies along with the conventional one might be more potential. Henceforth, our review focuses on in-depth analysis regarding MAPs aiming for a better understanding for developing an efficient therapeutic approach for targeting CNS tumors.
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Affiliation(s)
- Pritam Kumar Roy
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India
| | - Yetirajam Rajesh
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Mahitosh Mandal
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India.
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16
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Desterke C, Dang J, Lorenzo HK, Candelier JJ. Roles of tetraspanins during trophoblast development: bioinformatics and new perspectives. Cell Tissue Res 2021; 386:157-171. [PMID: 34278518 DOI: 10.1007/s00441-021-03502-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 06/28/2021] [Indexed: 11/24/2022]
Abstract
Tetraspanins are a superfamily of membrane proteins found in all eukaryotic organisms. They act as scaffold molecules that regulate the traffic and function of other membrane/signaling proteins, resulting in important downstream cellular consequences. The aim of this work was to use transcriptomes and bioinformatics analysis to identify the tetraspanins (and their partners) involved in trophoblast differentiation. We built a protein-protein interaction network around tetraspanins which revealed that tetraspanins CD9, CD81, and CD82 show a specific expression during trophoblast differentiation. These proteins appeared to be interconnected and to recruit several membrane partners which include integrins, immune-related molecules, and a variety of receptors. During weeks 8 to 24, a CD9 expression trajectory was identified in extravillous trophoblasts, and a website was developed: ( https://extravillous.shinyapps.io/CD9humanEVT/ ). In conclusion, CD81 may, together with CD9 and CD82, be interconnected in controlling trophoblast invasion in the endometrium. CD9 expression trajectory in extravillous trophoblast between weeks 8 and 24 shows the involvement of CD9 in cell adhesion and migration.
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Affiliation(s)
- Christophe Desterke
- Université Paris-Saclay, UFR Medicine, Gif-sur-Yvette, France.,INSERM UA9 Hôpital P. Brousse, 14 Avenue P.V. Couturier, 94800, Villejuif, France
| | - Julien Dang
- INSERM U970, 56 rue Leblanc, 75015, Paris, France.,Hôpital Bicêtre, 78 Rue du Général Leclerc, 94270, Le Kremlin-Bicetre, France
| | - Hans-Kristian Lorenzo
- Université Paris-Saclay, UFR Medicine, Gif-sur-Yvette, France.,Hôpital Bicêtre, 78 Rue du Général Leclerc, 94270, Le Kremlin-Bicetre, France.,INSERM U1197, Hôpital P. Brousse, 14 Avenue P.V. Couturier, 94800, Bâtiment Lavoisier, France
| | - Jean-Jacques Candelier
- Université Paris-Saclay, UFR Medicine, Gif-sur-Yvette, France. .,INSERM U1197, Hôpital P. Brousse, 14 Avenue P.V. Couturier, 94800, Bâtiment Lavoisier, France.
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17
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de Winde CM, Makris S, Millward LJ, Cantoral-Rebordinos JA, Benjamin AC, Martínez VG, Acton SE. Fibroblastic reticular cell response to dendritic cells requires coordinated activity of podoplanin, CD44 and CD9. J Cell Sci 2021; 134:jcs258610. [PMID: 34184727 PMCID: PMC8325952 DOI: 10.1242/jcs.258610] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/22/2021] [Indexed: 12/18/2022] Open
Abstract
In adaptive immunity, CLEC-2+ dendritic cells (DCs) contact fibroblastic reticular cells (FRCs) inhibiting podoplanin-dependent actomyosin contractility, permitting FRC spreading and lymph node expansion. The molecular mechanisms controlling lymph node remodelling are incompletely understood. We asked how podoplanin is regulated on FRCs in the early phase of lymph node expansion, and which other proteins are required for the FRC response to DCs. We find that podoplanin and its partner proteins CD44 and CD9 are differentially expressed by specific lymph node stromal populations in vivo, and their expression in FRCs is coregulated by CLEC-2 (encoded by CLEC1B). Both CD44 and CD9 suppress podoplanin-dependent contractility. We find that beyond contractility, podoplanin is required for FRC polarity and alignment. Independently of podoplanin, CD44 and CD9 affect FRC-FRC interactions. Furthermore, our data show that remodelling of the FRC cytoskeleton in response to DCs is a two-step process requiring podoplanin partner proteins CD44 and CD9. Firstly, CLEC-2 and podoplanin binding inhibits FRC contractility, and, secondly, FRCs form protrusions and spread, which requires both CD44 and CD9. Together, we show a multi-faceted FRC response to DCs, which requires CD44 and CD9 in addition to podoplanin.
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Affiliation(s)
| | | | | | | | | | | | - Sophie E. Acton
- Stromal Immunology Group, MRC Laboratory for Molecular Cell Biology, University College London, Gower Street, London WC1E 6BT, UK
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18
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Floren M, Gillette JM. Acute myeloid leukemia: Therapy resistance and a potential role for tetraspanin membrane scaffolds. Int J Biochem Cell Biol 2021; 137:106029. [PMID: 34174403 DOI: 10.1016/j.biocel.2021.106029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 11/24/2022]
Abstract
Acute myeloid leukemia (AML) is characterized by the disruption of myeloid differentiation and accumulation of blast cells in the bone marrow. While AML patients respond favorably to induction chemotherapy, long-term outcomes remain poor due to a high rate of chemoresistance. Advances with targeted therapies, which can be used in combination with conventional chemotherapy, have expanded therapeutic options for patients. However, remission is often short-lived and followed by disease relapse and drug resistance. Therefore, there is a substantial need to improve treatment options by identifying novel molecular and cellular targets that regulate AML chemosensitivity. Membrane scaffolds such as the tetraspanin family of proteins often serve as signaling mediators, translating extracellular signaling cues into intracellular signaling cascades. In this review, we discuss the conventional and targeted treatment strategies for AML and review chemoresistance mechanisms with a focus on the tetraspanin family of membrane scaffold proteins.
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19
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Abstract
Extracellular vesicles (EVs) refer to vesicles that are released by cells into the extracellular space. EVs mediate cell-to-cell communication via delivery of functional biomolecules between host and recipient cells. EVs can be categorised based on their mode of biogenesis and secretion and include apoptotic bodies, ectosomes or shedding microvesicles and exosomes among others. EVs have gained immense interest in recent years owing to their implications in pathophysiological conditions. Indeed, EVs have been proven useful in clinical applications as potential drug delivery vehicles and as source of diagnostic biomarkers. Despite the growing body of evidence supporting the clinical benefits, the processes involved in the biogenesis of EVs are poorly understood. Hence, it is critical to gain a deeper understanding of the underlying molecular machineries that ultimately govern the biogenesis and secretion of EVs. This chapter discusses the current knowledge on molecular mechanisms involved in the biogenesis of various subtypes of EVs.
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Affiliation(s)
- Taeyoung Kang
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Ishara Atukorala
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Suresh Mathivanan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia.
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20
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Gurung S, Perocheau D, Touramanidou L, Baruteau J. The exosome journey: from biogenesis to uptake and intracellular signalling. Cell Commun Signal 2021; 19:47. [PMID: 33892745 PMCID: PMC8063428 DOI: 10.1186/s12964-021-00730-1] [Citation(s) in RCA: 513] [Impact Index Per Article: 171.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 02/25/2021] [Indexed: 12/13/2022] Open
Abstract
The use of exosomes in clinical settings is progressively becoming a reality, as clinical trials testing exosomes for diagnostic and therapeutic applications are generating remarkable interest from the scientific community and investors. Exosomes are small extracellular vesicles secreted by all cell types playing intercellular communication roles in health and disease by transferring cellular cargoes such as functional proteins, metabolites and nucleic acids to recipient cells. An in-depth understanding of exosome biology is therefore essential to ensure clinical development of exosome based investigational therapeutic products. Here we summarise the most up-to-date knowkedge about the complex biological journey of exosomes from biogenesis and secretion, transport and uptake to their intracellular signalling. We delineate the major pathways and molecular players that influence each step of exosome physiology, highlighting the routes of interest, which will be of benefit to exosome manipulation and engineering. We highlight the main controversies in the field of exosome research: their adequate definition, characterisation and biogenesis at plasma membrane. We also delineate the most common identified pitfalls affecting exosome research and development. Unravelling exosome physiology is key to their ultimate progression towards clinical applications. Video Abstract
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Affiliation(s)
- Sonam Gurung
- Genetics and Genomic Medicine, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Dany Perocheau
- Genetics and Genomic Medicine, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Loukia Touramanidou
- Genetics and Genomic Medicine, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Julien Baruteau
- Genetics and Genomic Medicine, Great Ormond Street Institute of Child Health, University College London, London, UK. .,Metabolic Medicine Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
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21
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Khan NZ, Cao T, He J, Ritzel RM, Li Y, Henry RJ, Colson C, Stoica BA, Faden AI, Wu J. Spinal cord injury alters microRNA and CD81+ exosome levels in plasma extracellular nanoparticles with neuroinflammatory potential. Brain Behav Immun 2021; 92:165-83. [PMID: 33307173 DOI: 10.1016/j.bbi.2020.12.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/26/2020] [Accepted: 12/06/2020] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicles (EVs) have been implicated mechanistically in the pathobiology of neurodegenerative disorders, including central nervous system injury. However, the role of EVs in spinal cord injury (SCI) has received limited attention to date. Moreover, technical limitations related to EV isolation and characterization methods can lead to misleading or contradictory findings. Here, we examined changes in plasma EVs after mouse SCI at multiple timepoints (1d, 3d, 7d, 14d) using complementary measurement techniques. Plasma EVs isolated by ultracentrifugation (UC) were decreased at 1d post-injury, as shown by nanoparticle tracking analysis (NTA), and paralleled an overall reduction in total plasma extracellular nanoparticles. Western blot (WB) analysis of UC-derived plasma EVs revealed increased expression of the tetraspanin exosome marker, CD81, between 1d and 7d post-injury. To substantiate these findings, we performed interferometric and fluorescence imaging of single, tetraspanin EVs captured directly from plasma with ExoView®. Consistent with WB, we observed significantly increased plasma CD81+ EV count and cargo at 1d post-injury. The majority of these tetraspanin EVs were smaller than 50 nm based on interferometry and were insufficiently resolved by flow cytometry-based detection. At the injury site, there was enhanced expression of EV biogenesis proteins that were also detected in EVs directly isolated from spinal cord tissue by WB. Surface expression of tetraspanins CD9 and CD63 increased in multiple cell types at the injury site; however, astrocyte CD81 expression uniquely decreased, as demonstrated by flow cytometry. UC-isolated plasma EV microRNA cargo was also significantly altered at 1d post-injury with changes similar to that reported in EVs released by astrocytes after inflammatory stimulation. When injected into the lateral ventricle, plasma EVs from SCI mice increased both pro- and anti-inflammatory gene as well as reactive astrocyte gene expression in the brain cortex. These studies provide the first detailed characterization of plasma EV dynamics after SCI and suggest that plasma EVs may be involved in posttraumatic brain inflammation.
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22
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Kummer D, Steinbacher T, Schwietzer MF, Thölmann S, Ebnet K. Tetraspanins: integrating cell surface receptors to functional microdomains in homeostasis and disease. Med Microbiol Immunol 2020; 209:397-405. [PMID: 32274581 PMCID: PMC7395057 DOI: 10.1007/s00430-020-00673-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/28/2020] [Indexed: 12/27/2022]
Abstract
Tetraspanins comprise a family of proteins embedded in the membrane through four transmembrane domains. One of the most distinctive features of tetraspanins is their ability to interact with other proteins in the membrane using their extracellular, transmembrane and cytoplasmic domains, allowing them to incorporate several proteins into clusters called tetraspanin-enriched microdomains. The spatial proximity of signaling proteins and their regulators enables a rapid functional cross-talk between these proteins, which is required for a rapid translation of extracellular signals into intracellular signaling cascades. In this article, we highlight a few examples that illustrate how tetraspanin-mediated interactions between cell surface proteins allow their functional cross-talk to regulate intracellular signaling.
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Affiliation(s)
- Daniel Kummer
- Institute-Associated Research Group: Cell Adhesion and Cell Polarity, Institute of Medical Biochemistry, ZMBE, University of Münster, Münster, Germany
- Interdisciplinary Clinical Research Center (IZKF), University of Münster, Münster, Germany
| | - Tim Steinbacher
- Institute-Associated Research Group: Cell Adhesion and Cell Polarity, Institute of Medical Biochemistry, ZMBE, University of Münster, Münster, Germany
- Cells-In-Motion Cluster of Excellence (EXC1003-CiM), University of Münster, Münster, Germany
| | - Mariel Flavia Schwietzer
- Institute-Associated Research Group: Cell Adhesion and Cell Polarity, Institute of Medical Biochemistry, ZMBE, University of Münster, Münster, Germany
| | - Sonja Thölmann
- Institute-Associated Research Group: Cell Adhesion and Cell Polarity, Institute of Medical Biochemistry, ZMBE, University of Münster, Münster, Germany
| | - Klaus Ebnet
- Institute-Associated Research Group: Cell Adhesion and Cell Polarity, Institute of Medical Biochemistry, ZMBE, University of Münster, Münster, Germany.
- Interdisciplinary Clinical Research Center (IZKF), University of Münster, Münster, Germany.
- Cells-In-Motion Cluster of Excellence (EXC1003-CiM), University of Münster, Münster, Germany.
- Institute of Medical Biochemistry, ZMBE, Von-Esmarch-Str. 56, 48149, Münster, Germany.
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23
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Abstract
Mast cells (MCs) are long-living immune cells highly specialized in the storage and release of different biologically active compounds and are involved in the regulation of innate and adaptive immunity. MC degranulation and replacement of MC granules are accompanied by active membrane remodelling. Tetraspanins represent an evolutionary conserved family of transmembrane proteins. By interacting with lipids and other membrane and intracellular proteins, they are involved in organisation of membrane protein complexes and act as "molecular facilitators" connecting extracellular and cytoplasmic signaling elements. MCs express different tetraspanins and MC degranulation is accompanied by changes in membrane organisation. Therefore, tetraspanins are very likely involved in the regulation of MC exocytosis and membrane reorganisation after degranulation. Antiviral response and production of exosomes are further aspects of MC function characterized by dynamic changes of membrane organization. In this review, we pay a particular attention to tetraspanin gene expression in different human and murine MC populations, discuss tetraspanin involvement in regulation of key MC signaling complexes, and analyze the potential contribution of tetraspanins to MC antiviral response and exosome production. In-depth knowledge of tetraspanin-mediated molecular mechanisms involved in different aspects of the regulation of MC response will be beneficial for patients with allergies, characterized by overwhelming MC reactions.
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Affiliation(s)
- Zane Orinska
- Division of Experimental Pneumology, Research Center Borstel, Leibniz Lungenzentrum, Airway Research Center North, German Center for Lung Research (DZL), Borstel, Germany.
| | - Philipp M Hagemann
- Division of Experimental Pneumology, Research Center Borstel, Leibniz Lungenzentrum, Airway Research Center North, German Center for Lung Research (DZL), Borstel, Germany
| | - Ivana Halova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Petr Draber
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
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24
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Abstract
Tetraspanins are membrane organizing proteins that play a role in organizing the cell surface through the formation of subcellular domains consisting of tetraspanins and their partner proteins. These complexes are referred to as tetraspanin enriched microdomains (TEMs) or the tetraspanin web. The formation of TEMs allows for the regulation of a variety of cellular processes such as adhesion, migration, signaling, and cell fusion. Tetraspanin CD53 is a member of the tetraspanin superfamily expressed exclusively within the immune compartment. Amongst others, B cells, CD4+ T cells, CD8+ T cells, dendritic cells, macrophages, and natural killer cells have all been found to express high levels of this protein on their surface. Almost three decades ago it was reported that patients who lacked CD53 suffered from an increased susceptibility to pathogens resulting in the clinical manifestation of recurrent viral, bacterial, and fungal infections. This clearly suggests a vital and non-redundant role for CD53 in immune function. Yet, despite this striking finding, the specific functional roles of CD53 within the immune system have remained elusive. This review aims to provide a concise overview of the published literature concerning CD53 and reflect on the underappreciated role of this protein in immune cell regulation and function.
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Affiliation(s)
- V E Dunlock
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
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25
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Alvarez-Rodriguez M, Ljunggren SA, Karlsson H, Rodriguez-Martinez H. Exosomes in specific fractions of the boar ejaculate contain CD44: A marker for epididymosomes? Theriogenology 2019; 140:143-152. [PMID: 31473497 DOI: 10.1016/j.theriogenology.2019.08.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/10/2019] [Accepted: 08/20/2019] [Indexed: 12/16/2022]
Abstract
Seminal plasma (SP) is a complex fluid containing proteins, peptides, enzymes, hormones as well as extracellular vesicles (EVs). The SP interacts with spermatozoa and the inner cell lining of the female genital tract, adsorbing proteins and exosomes that modulate sperm functions and female immune responsiveness. In the present study, boar sperm-free SP was studied using flow cytometry (FC) after membrane tetraspanins (CD9, CD63 and CD81) and membrane receptor CD44 marking of non-enriched (whole SP) or gradient fractions enriched through two-step discontinuous KBr-density-gradient ultracentrifugation, in whole ejaculate or in selected ejaculate fractions. The results, evaluated by transmission electron microscopy, confirmed the presence of exosomes in all fractions of the pig SP. Noteworthy, these pig SP-exosomes were CD44-bearing when analysed by FC, with bands detected by western blotting (WB) at the expected 85 kD size. The two-step discontinuous KBr-density-gradient ultracentrifugation enriched the population of exosomes in two specific gradient fractions, indicating exosomes (either prostasomes or epididymosomes) could be separated from low-density lipoprotein (LDL) but they co-sediment with the high-density lipoprotein (HDL)-bearing fraction. The findings pave for the selective isolation of exosomes in functional studies of their function when interacting with spermatozoa, the oocyte and/or the female genitalia, including hyaluronan-CD44 interplay.
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Affiliation(s)
- Manuel Alvarez-Rodriguez
- Department of Clinical & Experimental Medicine (IKE), BHK/O&G Linköping University, SE-58185, Linköping, Sweden.
| | - Stefan A Ljunggren
- Occupational & Environmental Medicine Centre, Linköping University, SE-58185, Linköping, Sweden
| | - Helen Karlsson
- Occupational & Environmental Medicine Centre, Linköping University, SE-58185, Linköping, Sweden
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26
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Zhu XJ, Yang X, He W, Xiong Y, Liu J, Dai ZM. Involvement of tetraspanin 8 in the innate immune response of the giant prawn, Macrobrachium rosenbergii. Fish Shellfish Immunol 2019; 86:459-464. [PMID: 30476546 DOI: 10.1016/j.fsi.2018.11.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/18/2018] [Accepted: 11/22/2018] [Indexed: 06/09/2023]
Abstract
The tetraspanins, representing a conserved superfamily of four-span membrane proteins, are highly involved in viral and bacterial infections. Thus far, the function of the tetraspanins in crustaceans remains largely unknown. In this study, we report the cloning and expression analysis of a tetraspanin 8 from the giant freshwater prawn, Macrobrachium rosenbergii (named as MrTspan8). MrTspan8 contains a 720-bp open reading frame encoding a 239-amino acids protein, which exhibits four transmembrane domains and two extracellular loops that are typical for tetraspanins. MrTspan8 was found to be widely expressed in a variety of prawn tissues including heart, gill, muscle, gut, and hepatopancreas. Additionally, MrTspan8 expression was significantly increased in the hepatopancreas and gill of the prawns challenged by the bacterial pathogen Aeromonas hydrophila. Moreover, we show that pre-incubation of the peptides from the large extracellular loop of MrTSPAN8 protein reduced the cell death caused by A. hydrophila infection in prawn tissue, suggesting that MrTSPAN8 could be a mediator for bacterial infection to prawn.
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Affiliation(s)
- Xiao-Jing Zhu
- Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, 310036, Hangzhou, Zhejiang, China
| | - Xueqin Yang
- Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, 310036, Hangzhou, Zhejiang, China
| | - Weiran He
- Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, 310036, Hangzhou, Zhejiang, China
| | - Yanan Xiong
- Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, 310036, Hangzhou, Zhejiang, China
| | - Jun Liu
- College of Life Sciences, China Jiliang University, 310018, Hangzhou, Zhejiang, China.
| | - Zhong-Min Dai
- Institute of Life Sciences, College of Life and Environmental Science, Hangzhou Normal University, 310036, Hangzhou, Zhejiang, China.
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27
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Kusumoto Y, Okuyama H, Shibata T, Konno K, Takemoto Y, Maekawa D, Kononaga T, Ishii T, Akashi-Takamura S, Saitoh SI, Ikebuchi R, Moriya T, Ueda M, Miyake K, Ono S, Tomura M. Epithelial membrane protein 3 (Emp3) downregulates induction and function of cytotoxic T lymphocytes by macrophages via TNF-α production. Cell Immunol 2019; 324:33-41. [PMID: 29269102 DOI: 10.1016/j.cellimm.2017.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 11/22/2017] [Accepted: 12/01/2017] [Indexed: 02/07/2023]
Abstract
Tetraspanin membrane protein, epithelial membrane protein 3 (Emp3), is expressed in lymphoid tissues. Herein, we have examined the Emp3 in antigen presenting cell (APC) function in the CD8+ cytotoxic T lymphocytes (CTLs) induction. Emp3-overexpressing RAW264.7 macrophage cell line derived from BALB/c mice reduced anti-C57BL/6 alloreactive CTL induction, while Emp3-knockdown RAW264.7 enhanced it compared with parent RAW267.4. Emp3-overexpressing RAW264.7 inhibited, but Emp3-knockdown RAW264.7 augmented, CD8+ T cell proliferation, interferon-γ secretion, IL-2 consumption, and IL-2Rα expression on CD8+ T cells. The supernatant from co-culture with Emp3-overexpressing RAW264.7 contained higher amount of TNF-α, and TNF- α neutralization significantly restored all these inhibitions and the alloreactive CTL induction. These results suggest that Emp3 in allogeneic APCs possesses the inhibitory function of alloreactive CTL induction by downregulation of IL-2Rα expression CD8+ T cells via an increase in TNF-α production. This demonstrates a novel mechanism for regulating CTL induction by Emp3 in APCs through TNF-α production.
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Affiliation(s)
- Yutaka Kusumoto
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan.
| | - Hiromi Okuyama
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Takuma Shibata
- Division of Infectious Genetics, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Kazunori Konno
- Division of Infectious Genetics, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Yusuke Takemoto
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Daisuke Maekawa
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Tomoyuki Kononaga
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Takashi Ishii
- Division of Infectious Genetics, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Sachiko Akashi-Takamura
- Division of Infectious Genetics, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Shin-Ichiroh Saitoh
- Division of Infectious Genetics, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Ryoyo Ikebuchi
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan; Research Fellow of Japan Society for the Promotion of Science, Japan
| | - Taiki Moriya
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Mizuki Ueda
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Kensuke Miyake
- Division of Infectious Genetics, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Shiro Ono
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Michio Tomura
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan.
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28
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Jankovicova J, Secova P, Manaskova-Postlerova P, Simonik O, Frolikova M, Chmelikova E, Horovska L, Michalkova K, Dvorakova-Hortova K, Antalikova J. Detection of CD9 and CD81 tetraspanins in bovine and porcine oocytes and embryos. Int J Biol Macromol 2018; 123:931-938. [PMID: 30452988 DOI: 10.1016/j.ijbiomac.2018.11.161] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/15/2018] [Accepted: 11/16/2018] [Indexed: 12/11/2022]
Abstract
Tetraspanins are multifunctional molecules located in specific microdomains on the plasma membrane. Thanks to their ability to form networks with other proteins they can participate in many cellular functions. Tetraspanins are part of the interactive network in gametes; however, their precise role in fertilization is not yet clear. The aim of this study was to compare the localization of CD9 and CD81 tetraspanins during oocyte maturation and early development of the embryos in bovine and porcine model. CD9 was detected on the oocyte plasma membrane and vesicles in the perivitelline space of bovine oocytes and embryos. We suggest that CD9 could be a component involved in transzonal projections. Based on the results of in vitro fertilization assay, CD9 and CD81 seem to be part of a more complex fusion network on the plasma membrane of bovine oocytes. On the other hand, both tetraspanins showed a clustered expression pattern on the plasma membrane and inner margin of zona pellucida (ZP) in porcine oocytes and embryos. We found a new species-specific pattern of CD9 and CD81 distribution in ZP which could reflect their specialized role in processes associated with cell adhesion and intercellular communication upon fertilization.
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Affiliation(s)
- Jana Jankovicova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Petra Secova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Pavla Manaskova-Postlerova
- Laboratory of Reproductive Biology, Institute of Biotechnology CAS, v.v.i., BIOCEV, Vestec, Czech Republic; Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Czech Republic
| | - Ondrej Simonik
- Laboratory of Reproductive Biology, Institute of Biotechnology CAS, v.v.i., BIOCEV, Vestec, Czech Republic; Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Czech Republic
| | - Michaela Frolikova
- Laboratory of Reproductive Biology, Institute of Biotechnology CAS, v.v.i., BIOCEV, Vestec, Czech Republic
| | - Eva Chmelikova
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Czech Republic
| | - Lubica Horovska
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Katarina Michalkova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Katerina Dvorakova-Hortova
- Laboratory of Reproductive Biology, Institute of Biotechnology CAS, v.v.i., BIOCEV, Vestec, Czech Republic; Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic.
| | - Jana Antalikova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovak Republic.
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29
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Wang L, Giri BR, Chen Y, Xia T, Liu J, Li H, Li J, Cheng G. Molecular characterization, expression profile, and preliminary evaluation of diagnostic potential of CD63 in Schistosoma japonicum. Parasitol Res 2018; 117:3625-3631. [PMID: 30178196 DOI: 10.1007/s00436-018-6063-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 08/21/2018] [Indexed: 11/29/2022]
Abstract
Schistosomes are the causative agents of human schistosomiasis, which is endemic in tropical and subtropical zones. CD63 is a member of the tetraspanin protein family widely expressed among eukaryotes. Previously, we identified a CD63 homolog from extracellular vesicles isolated from Schistosoma japonicum. In this study, we characterized this CD63 homolog using a molecular approach and evaluated the potential of its recombinant protein for the diagnosis of schistosomiasis. A sequence alignment indicated that S. japonicum CD63 (SjCD63) has sequence identities of 76 and 28% with S. mansoni and human CD63, respectively. A phylogenetic analysis displayed that S. japonicum CD63 is related to S. mansoni and Opisthorchis viverrini CD63. The cDNA of SjCD63 was 740 bp long with an expected protein size of 23.58 kDa. A RT-qPCR analysis revealed significantly higher expression of SjCD63 mRNA in adult worms on days 21, 28, and 35 than in 7-day schistosomula, cercariae, and eggs. In addition, recombinant SjCD63 protein detected by ELISA revealed significantly higher optical density values compared to that of the negative control in both S. japonicum-infected mouse and rabbit sera, providing preliminary evidence for its diagnostic potential. Overall, these results provide insight into the molecular properties of SjCD63, its expression profiles, and its preliminary diagnostic potential.
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Affiliation(s)
- Lihui Wang
- Shanghai Veterinary Research Institute, Key Laboratory of Animal Parasitology, Ministry of Agriculture, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Shanghai, 200241, China.,Tianjin Agricultural University, Tianjin, China
| | - Bikash Ranjan Giri
- Shanghai Veterinary Research Institute, Key Laboratory of Animal Parasitology, Ministry of Agriculture, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Shanghai, 200241, China
| | - Yongjun Chen
- Shanghai Veterinary Research Institute, Key Laboratory of Animal Parasitology, Ministry of Agriculture, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Shanghai, 200241, China
| | - Tianqi Xia
- Shanghai Veterinary Research Institute, Key Laboratory of Animal Parasitology, Ministry of Agriculture, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Shanghai, 200241, China
| | - Juntao Liu
- Shanghai Veterinary Research Institute, Key Laboratory of Animal Parasitology, Ministry of Agriculture, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Shanghai, 200241, China
| | - Huimin Li
- Shanghai Veterinary Research Institute, Key Laboratory of Animal Parasitology, Ministry of Agriculture, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Shanghai, 200241, China
| | - Jianjun Li
- Tianjin Agricultural University, Tianjin, China
| | - Guofeng Cheng
- Shanghai Veterinary Research Institute, Key Laboratory of Animal Parasitology, Ministry of Agriculture, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Shanghai, 200241, China.
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30
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Benmoussa A, Gotti C, Bourassa S, Gilbert C, Provost P. Identification of protein markers for extracellular vesicle (EV) subsets in cow's milk. J Proteomics 2018; 192:78-88. [PMID: 30153512 DOI: 10.1016/j.jprot.2018.08.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/02/2018] [Accepted: 08/20/2018] [Indexed: 12/11/2022]
Abstract
Extracellular vesicles (EVs), like exosomes, are small membrane vesicles involved in cell-to-cell communications that modulate numerous biological processes. We previously discovered a new EV subset in milk (sedimenting at 35,000 g; 35 K) that protected its cargo (RNAs and proteins) during simulated digestion and was more enriched in microRNAs than exosomes (sedimenting at 100 K). Here, we used LC-MS/MS to push further the comparison between these two pellets. Commonly used EV markers were not differentially enriched between the pellets, questioning their use with cow's milk EVs. Similarly, the majority of the quantified proteins were equally enriched between the two pellets. Nevertheless, 20 proteins were specific to 35 K, while 41 were specifically enriched in 100 K (p < 0.05), suggesting their potential use as specific markers. Loaded with these proteins, the EVs in these pellets might regulate translation, proliferation and cell survival for 35 K, and metabolism, extracellular matrix turnover and immunity for 100 K. This approach also brought new insights into milk EV-associated integrins and their possible role in specifically targeting recipient cell types. These findings may help better discriminate between milk EVs, improve our understanding of milk EV-associated protein function and their possible use as therapeutic tools for the management of immunity- and metabolism-associated disorders. WEB PAGE: http://www.crchuq.ca/en/research/researchers/4691.
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Affiliation(s)
- Abderrahim Benmoussa
- CHU de Québec Research Center/CHUL Pavilion, 2705 Blvd Laurier, Quebec City, QC, G1V 4G2 and Department of Microbiology, Infectious Diseases and Immunology, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Clarisse Gotti
- Proteomics Platform, Genomics Center, CHU de Québec Research Center/CHUL Pavilion, 2705 Blvd Laurier, Quebec City, QC G1V 4G2, Canada
| | - Sylvie Bourassa
- Proteomics Platform, Genomics Center, CHU de Québec Research Center/CHUL Pavilion, 2705 Blvd Laurier, Quebec City, QC G1V 4G2, Canada
| | - Caroline Gilbert
- CHU de Québec Research Center/CHUL Pavilion, 2705 Blvd Laurier, Quebec City, QC, G1V 4G2 and Department of Microbiology, Infectious Diseases and Immunology, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Patrick Provost
- CHU de Québec Research Center/CHUL Pavilion, 2705 Blvd Laurier, Quebec City, QC, G1V 4G2 and Department of Microbiology, Infectious Diseases and Immunology, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada.
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31
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Abstract
Extracellular vesicles (EVs) are released by mammalian cells and are thought to be important mediators of intercellular communication. There are many methods for isolating EVs from cell culture media, but the most popular methods involve purification based on ultracentrifugation . Here, we provide a detailed protocol for isolating EVs by differential ultracentrifugation and analyzing EV proteins (such as the tetraspanins CD9 , CD63 and CD81 ) by western blotting.
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Affiliation(s)
- Emma J K Kowal
- Department of Genetics, Harvard Medical School, Boston, MA, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - Dmitry Ter-Ovanesyan
- Department of Genetics, Harvard Medical School, Boston, MA, USA. .,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA. .,Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA, USA. .,Broad Institute of MIT and Harvard, Cambridge, MA, USA.
| | - Aviv Regev
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Department of Biology, MIT, Cambridge, MA, USA
| | - George M Church
- Department of Genetics, Harvard Medical School, Boston, MA, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
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32
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Abstract
Ubiquitinated membrane proteins are sorted into intralumenal endosomal vesicles on their way for degradation in lysosomes. Here we summarize the discovery of the Cos proteins, which work to organize and segregate ubiquitinated cargo prior to its incorporation into intralumenal vesicles of the multivesicular body (MVB). Importantly, cargoes such as GPI-anchored proteins (GPI-APs) that cannot undergo ubiquitination, rely entirely on Cos proteins for sorting into intralumenal vesicles using the same pathway that depends on ESCRTs and ubiquitin ligases that typical polytopic membrane proteins do. Here we show Cos proteins provide functions as not only adaptor proteins for ubiquitin ligases, but also as cargo carriers that can physically usher a variety of other proteins into the MVB pathway. We then discuss the significance of this new sorting model and the broader implications for this cargo adaptor mechanism, whereby yeast Cos proteins, and their likely animal analogs, provide a ubiquitin sorting signal in trans to enable sorting of a membrane protein network into intralumenal vesicles.
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Affiliation(s)
- Chris MacDonald
- a Molecular Physiology and Biophysics; University of Iowa ; Iowa City , IA USA
| | - Mark A Stamnes
- a Molecular Physiology and Biophysics; University of Iowa ; Iowa City , IA USA
| | - David J Katzmann
- b Biochemistry and Molecular Biology; Mayo Clinic College of Medicine ; Rochester , MN USA
| | - Robert C Piper
- a Molecular Physiology and Biophysics; University of Iowa ; Iowa City , IA USA
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33
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Berditchevski F, Odintsova E. 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] [What about the content of this article? (0)] [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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34
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Abstract
Extracellular vesicles are defined as a heterogeneous group of vesicles that are released by prokaryotic to higher eukaryotic cells and by plant cells in an evolutionary conserved manner. The significance of these vesicles lies in their capacity to transfer selected cargo composed of proteins, lipids and nucleic acids to both recipient and parent cells and to influence various physiological and pathological functions. Microorganisms such as parasites, fungi and protozoa and even single cell organisms such as bacteria generate extracellular vesicles. In addition, several viruses have evolved strategies to hijack the extracellular vesicles for egress or to alter the surrounding environment. The thesis of this article is that: a) during HSV-1 infection vesicles are delivered from infected to uninfected cells that influence the infection; b) the cargo of these vesicles consists of viral and host transcripts (mRNAs, miRNAs and non-coding RNAs) and proteins including innate immune components, such as STING; and c) the viral vesicles carry the tetraspanins CD9, CD63 and CD81, which are considered as markers of exosomes. Therefore, we assume that the STING-carrying vesicles, produced during HSV-1 infection, are reminiscent to exosomes. The presumed functions of the exosomes released from HSV-1 infected cells include priming the recipient cells and accelerating antiviral responses to control the dissemination of the virus. This may be one strategy used by the virus to prevent the elimination by the host and establish persistent infection. In conclusion, the modification of the cargo of exosomes appears to be part of the strategy that HSV-1 has evolved to establish lifelong persistent infections into the human body to ensure successful dissemination between individuals.
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Affiliation(s)
- Maria Kalamvoki
- Department Microbiology, Molecular Genetics Immunology, University of Kansas Medical Center, 3901 Rainbow Blvd, Building Hixon, room 3009, Kansas City, KS, 66160, USA.
| | - Thibaut Deschamps
- Department Microbiology, Molecular Genetics Immunology, University of Kansas Medical Center, 3901 Rainbow Blvd, Building Hixon, room 3009, Kansas City, KS, 66160, USA
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35
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Toya SP, Wary KK, Mittal M, Li F, Toth PT, Park C, Rehman J, Malik AB. Integrin α6β1 Expressed in ESCs Instructs the Differentiation to Endothelial Cells. Stem Cells 2016; 33:1719-29. [PMID: 25693840 DOI: 10.1002/stem.1974] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 12/25/2014] [Accepted: 01/14/2015] [Indexed: 12/19/2022]
Abstract
Adhesion of embryonic stem cells (ESCs) to the extracellular matrix may influence differentiation potential and cell fate decisions. Here, we investigated the inductive role of binding of integrin α6β1 expressed in mouse (m)ESCs to laminin-1 (LN1) in mediating the differentiation of ESCs to endothelial cells (ECs). We observed that α6β1 binding to LN1 was required for differentiation to ECs. α6β1 functioned by recruiting the adaptor tetraspanin protein CD151, which activated FAK and Akt signaling and mediated the EC lineage-specifying transcription factor Er71. In contrast, association of the ESC-expressed α3β1, another highly expressed LN1 binding integrin, with CD151, prevented α6β1-mediated differentiation. CD151 thus functioned as a bifurcation router to direct ESCs toward ECs when α6β1 associated with CD151, or prevented transition to ECs when α3β1 associated with CD151. These observations were recapitulated in mice in which α6 integrin or CD151 knockdown reduced the expression of Er71-regulated angiogenesis genes and development of blood vessels. Thus, interaction of α6β1 in ESCs with LN1 activates α6β1/CD151 signaling which programs ESCs toward the EC lineage fate.
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Affiliation(s)
- Sophie P Toya
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, USA.,Department of Medicine, University of Illinois College of Medicine, Chicago, Illinois, USA.,The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Kishore K Wary
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, USA.,The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Manish Mittal
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, USA.,The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Fei Li
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, USA.,The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Peter T Toth
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Changwon Park
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, USA.,The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Jalees Rehman
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, USA.,Department of Medicine, University of Illinois College of Medicine, Chicago, Illinois, USA.,The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Asrar B Malik
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, USA.,The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
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36
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Soares HR, Castro R, Tomás HA, Rodrigues AF, Gomes-Alves P, Bellier B, Klatzmann D, Carrondo MJT, Alves PM, Coroadinha AS. Tetraspanins displayed in retrovirus-derived virus-like particles and their immunogenicity. Vaccine 2016; 34:1634-1641. [PMID: 26795367 DOI: 10.1016/j.vaccine.2015.12.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/04/2015] [Accepted: 12/08/2015] [Indexed: 10/22/2022]
Abstract
Virus-like particles (VLPs) are a particular subset of subunit vaccines which are currently explored as safer alternatives to live attenuated or inactivated vaccines. VLPs derived from retrovirus (retroVLPs) are commonly used as scaffolds for vaccine candidates due to their ability to incorporate heterologous envelope proteins. Pseudotyping retroVLPs is however not a selective process therefore, host cellular proteins such as tetraspanins are also included in the membrane. The contribution of these host-proteins to retrovirus immunogenicity remains unclear. In this work, human cells silenced and not silenced for tetraspanin CD81 were used to produce CD81(-) or CD81(+) retroVLPs. We first analyzed mice immune response against human CD81. Despite effective silencing of CD81 in retroVLP producing cells, both humoral and cellular immune responses showed persistent anti-CD81 immunogenicity, suggesting cross reactivity to related antigens. We thus compared the incorporation of related tetraspanins in retroVLPs and showed that decreased CD81 incorporation in CD81(-) retro-VLPs is compensated by an increased incorporation of CD9 and CD63 tetraspanins. These results highlight the dynamic nature of host-derived proteins incorporation in retroVLPs membrane, which should be considered when retrovirus-based biopharmaceuticals are produced in xenogeneic cells.
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Affiliation(s)
- H R Soares
- iBET - Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; Instituto de Tecnologia Química e Biológica, António Xavier, Universidade Nova de Lisboa (ITQB-UNL), Av. da República, 2780-157 Oeiras, Portugal
| | - R Castro
- iBET - Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; Instituto de Tecnologia Química e Biológica, António Xavier, Universidade Nova de Lisboa (ITQB-UNL), Av. da República, 2780-157 Oeiras, Portugal
| | - H A Tomás
- iBET - Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; Instituto de Tecnologia Química e Biológica, António Xavier, Universidade Nova de Lisboa (ITQB-UNL), Av. da República, 2780-157 Oeiras, Portugal
| | - A F Rodrigues
- iBET - Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; Instituto de Tecnologia Química e Biológica, António Xavier, Universidade Nova de Lisboa (ITQB-UNL), Av. da República, 2780-157 Oeiras, Portugal
| | - P Gomes-Alves
- iBET - Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; Instituto de Tecnologia Química e Biológica, António Xavier, Universidade Nova de Lisboa (ITQB-UNL), Av. da República, 2780-157 Oeiras, Portugal
| | - B Bellier
- Sorbonne Universités, UPMC Univ Paris 06, UMRS_959, I3, F-75013 Paris, France; INSERM, UMR_S 959, I3, F-75013 Paris, France
| | - D Klatzmann
- Sorbonne Universités, UPMC Univ Paris 06, UMRS_959, I3, F-75013 Paris, France; INSERM, UMR_S 959, I3, F-75013 Paris, France
| | - M J T Carrondo
- iBET - Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; Faculdade de Ciências e Tecnologia/Universidade Nova de Lisboa, P-2825 Monte da Caparica, Portugal
| | - P M Alves
- iBET - Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; Instituto de Tecnologia Química e Biológica, António Xavier, Universidade Nova de Lisboa (ITQB-UNL), Av. da República, 2780-157 Oeiras, Portugal
| | - A S Coroadinha
- iBET - Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; Instituto de Tecnologia Química e Biológica, António Xavier, Universidade Nova de Lisboa (ITQB-UNL), Av. da República, 2780-157 Oeiras, Portugal.
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37
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Abstract
Accumulating evidence implicates phosphoinositide 4-phosphate as a regulatory molecule in its own right recruiting specific effector proteins to cellular membranes. Here, we describe biochemical and immunocytochemical methods to evaluate tetraspanin-associated phosphoinositide-4 kinases activity in primary human hepatic stellate cells (hHSC) and neoplastic hepatoblastoma cells.
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Affiliation(s)
- Krista Rombouts
- Division of Medicine, Institute for Liver & Digestive Health, Royal Free Hospital, University College London (UCL), Royal Free Campus, Rowland Hill Street, London, NW3 2PF, UK.
| | - Vinicio Carloni
- Department of Experimental and Clinical Medicine, Center for Research, Transfer and High Education, DENOthe, University of Florence, Largo Brambilla 3, Florence, 50134, Italy.
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38
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Uchtmann K, Park ER, Bergsma A, Segula J, Edick MJ, Miranti CK. Homozygous loss of mouse tetraspanin CD82 enhances integrin αIIbβ3 expression and clot retraction in platelets. Exp Cell Res 2015; 339:261-9. [PMID: 26562164 DOI: 10.1016/j.yexcr.2015.11.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 11/03/2015] [Accepted: 11/07/2015] [Indexed: 11/15/2022]
Abstract
Integrin αIIbβ3 is critical for platelet-mediated blood clotting. Tetraspanins are well-established regulators of integrins and genetic loss of tetraspanin CD151 or TSSC6 in mice leads to increased bleeding due to inadequate integrin αIIbβ3 outside-in signaling. Conversely, mild but enhanced integrin αIIbβ3 activation and hyperaggregation is observed in CD9 and CD63 null mice respectively. CD82 is reportedly expressed in platelets; however its function is unknown. Using genetically engineered CD82 null mice, we investigated the role of the tetraspanin CD82 in platelet activation. Loss of CD82 resulted in reduced bleed times in vivo. CD82 was present on the surface of both human and mouse platelets, and its levels did not change upon platelet activation or degranulation. No differences in platelet activation, degranulation, or aggregation in response to ADP or collagen were detected in CD82 null mice. However, the kinetics of clot retraction was enhanced, which was intrinsic to the CD82-null platelets. Integrin αIIbβ3 surface expression was elevated on the platelets from CD82 null mice and they displayed enhanced adhesion and tyrosine kinase signaling on fibrinogen. This is the first report on CD82 function in platelets; which we found intrinsically modulates clot retraction, integrin αIIbβ3 expression, cell adhesion, and tyrosine signaling.
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Affiliation(s)
- Kristen Uchtmann
- Lab of Integrin Signaling, Van Andel Research Institute, Grand Rapids, MI 49503 United States
| | - Electa R Park
- Lab of Integrin Signaling, Van Andel Research Institute, Grand Rapids, MI 49503 United States
| | - Alexis Bergsma
- Lab of Integrin Signaling, Van Andel Research Institute, Grand Rapids, MI 49503 United States
| | - Justin Segula
- Lab of Integrin Signaling, Van Andel Research Institute, Grand Rapids, MI 49503 United States
| | - Mathew J Edick
- Lab of Integrin Signaling, Van Andel Research Institute, Grand Rapids, MI 49503 United States
| | - Cindy K Miranti
- Lab of Integrin Signaling, Van Andel Research Institute, Grand Rapids, MI 49503 United States.
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39
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Abstract
Oligodendrocytes, the myelinating glial cells of the central nervous system (CNS), are due to their high specialization and metabolic needs highly vulnerable to various insults. This led to a general view that oligodendrocytes are defenseless victims during brain damage such as occurs in acute and chronic CNS inflammation. However, this view is challenged by increasing evidence that oligodendrocytes are capable of expressing a wide range of immunomodulatory molecules. They express various cytokines and chemokines (e.g. Il-1β, Il17A, CCL2, CXCL10), antigen presenting molecules (MHC class I and II) and co-stimulatory molecules (e.g. CD9, CD81), complement and complement receptor molecules (e.g. C1s, C2 and C3, C1R), complement regulatory molecules (e.g. CD46, CD55, CD59), tetraspanins (e.g. TSPAN2), neuroimmune regulatory proteins (e.g. CD200, CD47) as well as extracellular matrix proteins (e.g. VCAN) and many others. Their potential immunomodulatory properties can, at specific times and locations, influence ongoing immune processes as shown by numerous publications. Therefore, oligodendrocytes are well capable of immunomodulation, especially during the initiation or resolution of immune processes in which subtle signaling might tip the scale. A better understanding of the immunomodulatory oligodendrocyte can help to invent new, innovative therapeutic interventions in various diseases such as Multiple Sclerosis. This article is part of a Special Issue entitled SI: Myelin Evolution.
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Affiliation(s)
- Thomas Zeis
- Neurobiology, Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Lukas Enz
- Neurobiology, Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Nicole Schaeren-Wiemers
- Neurobiology, Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland.
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40
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Castro R, Abós B, González L, Aquilino C, Pignatelli J, Tafalla C. Molecular characterization of CD9 and CD63, two tetraspanin family members expressed in trout B lymphocytes. Dev Comp Immunol 2015; 51:116-125. [PMID: 25769915 DOI: 10.1016/j.dci.2015.03.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/04/2015] [Accepted: 03/05/2015] [Indexed: 06/04/2023]
Abstract
Tetraspanins are a family of membrane-organizing proteins, characterized by the presence of four highly conserved transmembrane regions that mediate diverse physiological functions. In the current study, we have identified two novel tetraspanin members in rainbow trout (Oncorhynchus mykiss), homologs to mammalian CD9 and CD63. Both genes were expressed in muscle, skin, gills, hindgut, gonad, liver, spleen, head kidney, thymus and peripheral blood leukocytes. Throughout the early life cycle stages, CD9 mRNA levels significantly increased after first feeding, whereas CD63 transcription remained constant during all the developmental stages analyzed. In response to an experimental bath infection with viral hemorrhagic septicemia virus (VHSV), CD9 transcription was down-regulated in the gills, while CD63 mRNA levels were down-regulated in the head kidney. Instead, when the virus was intraperitoneally injected, the transcription of both genes was significantly up-regulated in peritoneal cells at several days post-infection. Additionally, both genes were transcriptionally up-regulated in the muscle of trout injected with a VHSV DNA vaccine. To gain insight on the relation of these tetraspanins with B cell activity we determined their constitutive expression in naive IgM(+) populations from different sources and observed that both molecules were being transcribed by IgM(+) cells in different tissues. Furthermore, CD9 transcription was significantly down-regulated in splenic IgM(+) cells in response to in vitro VHSV exposure. Our results provide insights on the potential role of these tetraspanins on teleost B cell and antiviral immunity.
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Affiliation(s)
- Rosario Castro
- Centro de Investigación en Sanidad Animal (CISA-INIA), Valdeolmos, Madrid, Spain
| | - Beatriz Abós
- Centro de Investigación en Sanidad Animal (CISA-INIA), Valdeolmos, Madrid, Spain
| | - Lucia González
- Centro de Investigación en Sanidad Animal (CISA-INIA), Valdeolmos, Madrid, Spain
| | - Carolina Aquilino
- Centro de Investigación en Sanidad Animal (CISA-INIA), Valdeolmos, Madrid, Spain
| | - Jaime Pignatelli
- Centro de Investigación en Sanidad Animal (CISA-INIA), Valdeolmos, Madrid, Spain
| | - Carolina Tafalla
- Centro de Investigación en Sanidad Animal (CISA-INIA), Valdeolmos, Madrid, Spain.
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41
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Saboor M, Ayub Q, Ilyas S, Moinuddin. Platelet receptors; an instrumental of platelet physiology. Pak J Med Sci 2014; 29:891-6. [PMID: 24353652 PMCID: PMC3809294 DOI: 10.12669/pjms.293.3497] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 03/30/2013] [Accepted: 04/02/2013] [Indexed: 11/29/2022] Open
Abstract
Platelets play an important role in hemostasis, inflammation, host defense, tumor growth and metastasis. Platelets receptors are instrumental in platelet-platelet aggregation and interaction of platelets with leukocytes, endothelial cells and coagulation factors. These receptors are also the targets for antiplatelet drugs. This review focuses on the role of platelet receptors in human physiology. Data were extracted from peer-reviewed journals using MEDLINE and EMBASE databases, and the following terms (platelets, platelet receptors, CD markers, integrins, tetraspanins, transmembrane receptors, prostaglandin receptors, immunoglobulin superfamily receptors) were used.
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Affiliation(s)
- Muhammad Saboor
- Muhammad Saboor, Baqai Institute of Hematology, Baqai Medical University, Karachi, Pakistan
| | - Qamar Ayub
- Qamar Ayub, Baqai Institute of Medical Technology, Baqai Medical University, Karachi, Pakistan
| | - Samina Ilyas
- SaminaIlyas, Baqai Institute of Hematology, Baqai Medical University, Karachi, Pakistan
| | - Moinuddin
- Moinuddin, Baqai Institute of Hematology, Baqai Medical University, Karachi, Pakistan
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42
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Mazzocca A, Birgani MT, Sabbà C, Carloni V. Tetraspanin-enriched microdomains and hepatocellular carcinoma progression. Cancer Lett 2014; 351:23-9. [PMID: 24858024 DOI: 10.1016/j.canlet.2014.05.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 05/05/2014] [Accepted: 05/06/2014] [Indexed: 02/06/2023]
Abstract
As in many tumors, heterogeneity within the cell population is one of the main features of hepatocellular carcinoma (HCC). Heterogeneity results from the ability of tumor to produce multiple subpopulations of cells with diverse genetic, biochemical and immunological characteristics. Little is known about how heterogeneity emerges and how it is maintained. Fluctuations in single cells can be masked or completely misrepresented when cell populations are analyzed. It has become exceedingly apparent that the utility of measurement based on the analysis of bulk specimens is limited by intra-tumor genetic and epigenetic heterogeneity, as characteristics of the most abundant cell type might not necessarily predict the properties of cell populations. Yet, such non-uniformities often unveil molecular patterns that can represent mechanisms of tumor progression. Interestingly, variability among single cells in a population may arise from different responses to intrinsic and extrinsic perturbations mainly mediated by the plasma membrane. The association of certain proteins, including tetraspanins, and lipids in specific location on the plasma membrane constitutes specialized structure called tetraspanin-enriched microdomains (TEMs). TEMs organization in cancer may reveal essential clues for understanding pathogenic mechanisms underlying cancer progression. Along these lines, TEMs and HCC progression represent a valuable paradigm for gaining a deeper understanding of such mechanisms.
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43
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Hong IK, Byun HJ, Lee J, Jin YJ, Wang SJ, Jeoung DI, Kim YM, Lee H. The tetraspanin CD81 protein increases melanoma cell motility by up-regulating metalloproteinase MT1-MMP expression through the pro-oncogenic Akt-dependent Sp1 activation signaling pathways. J Biol Chem 2014; 289:15691-704. [PMID: 24733393 DOI: 10.1074/jbc.m113.534206] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Despite the importance of multiple tetraspanin proteins in cancer invasion and metastasis, little is known about the role and significance of tetraspanin CD81 in these processes. In the present study, we examined CD81 effects on melanoma cell invasiveness and metastasis. Transfection of CD81 into melanoma cells lacking endogenous CD81 expression significantly enhanced the migrating, invasive, and metastatic abilities of melanoma cells. Interestingly, membrane type 1 matrix metalloproteinase (MT1-MMP) expression was found in CD81-expressing melanoma cells but not in CD81-deficient cells. siRNA knockdown of CD81 in melanoma cells with endogenous CD81 demonstrated decreased MT1-MMP levels and cell motility. Notably, CD81-induced cell migration was abrogated by antibody blocking and siRNA knockdown of MT1-MMP, indicating that MT1-MMP is responsible for CD81-stimulated melanoma cell migration. Promoter analysis revealed an essential role of the Sp1 transcription factor in CD81-induced MT1-MMP transcription. We also demonstrate that the Sp1-activating Akt pathway is involved in adhesion-dependent CD81 signaling to induce MT1-MMP expression and cell motility. Importantly, human skin cancer tissue specimens displayed a positive correlation of CD81 with MT1-MMP expression levels and a close association of CD81 with malignant melanomas. Taken together, these results strongly suggest that CD81 stimulates melanoma cell motility by inducing MT1-MMP expression through the Akt-dependent Sp1 activation signaling pathway, leading to increased melanoma invasion and metastasis.
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Affiliation(s)
- In-Kee Hong
- From the Medical and Bio-Material Research Center and
| | - Hee-Jung Byun
- From the Medical and Bio-Material Research Center and
| | - Jaeseob Lee
- Brain Korea 21+ Graduate Program, Department of Biological Sciences, College of Natural Sciences, and
| | | | - Sun-Ju Wang
- Department of Biological Sciences, College of Natural Sciences, and
| | - Doo-Il Jeoung
- From the Medical and Bio-Material Research Center and
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, School of Medicine, Kangwon National University, Chunchon, Kangwon-do 200-701, Republic of Korea
| | - Hansoo Lee
- From the Medical and Bio-Material Research Center and Brain Korea 21+ Graduate Program, Department of Biological Sciences, College of Natural Sciences, and
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44
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Qin Y, Fu M, Takahashi M, Iwanami A, Kuga D, Rao RG, Sudhakar D, Huang T, Kiyohara M, Torres K, Dillard C, Inagaki A, Kasahara N, Goodglick L, Braun J, Mischel PS, Gordon LK, Wadehra M. Epithelial membrane protein-2 (EMP2) activates Src protein and is a novel therapeutic target for glioblastoma. J Biol Chem 2014; 289:13974-85. [PMID: 24644285 DOI: 10.1074/jbc.m113.543728] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Despite recent advances in molecular classification, surgery, radiotherapy, and targeted therapies, the clinical outcome of patients with malignant brain tumors remains extremely poor. In this study, we have identified the tetraspan protein epithelial membrane protein-2 (EMP2) as a potential target for glioblastoma (GBM) killing. EMP2 had low or undetectable expression in normal brain but was highly expressed in GBM as 95% of patients showed some expression of the protein. In GBM cells, EMP2 enhanced tumor growth in vivo in part by up-regulating αvβ3 integrin surface expression, activating focal adhesion kinase and Src kinases, and promoting cell migration and invasion. Consistent with these findings, EMP2 expression significantly correlated with activated Src kinase in patient samples and promoted tumor cell invasion using intracranial mouse models. As a proof of principle to determine whether EMP2 could serve as a target for therapy, cells were treated using specific anti-EMP2 antibody reagents. These reagents were effective in killing GBM cells in vitro and in reducing tumor load in subcutaneous mouse models. These results support the role of EMP2 in the pathogenesis of GBM and suggest that anti-EMP2 treatment may be a novel therapeutic treatment.
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Affiliation(s)
- Yu Qin
- From the Departments of Ophthalmology and
| | | | - Masamichi Takahashi
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California 90095 and
| | | | | | | | | | | | | | | | | | - Akihito Inagaki
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California 90095 and
| | - Noriyuki Kasahara
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California 90095 and
| | - Lee Goodglick
- Pathology and Laboratory Medicine, Jonsson Comprehensive Cancer Center, and
| | - Jonathan Braun
- Pathology and Laboratory Medicine, Jonsson Comprehensive Cancer Center, and
| | - Paul S Mischel
- the Ludwig Institute for Cancer Research, Department of Pathology, University of California at San Diego, La Jolla, California 92093
| | | | - Madhuri Wadehra
- Pathology and Laboratory Medicine, Jonsson Comprehensive Cancer Center, and
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45
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Jia X, Schulte L, Loukas A, Pickering D, Pearson M, Mobli M, Jones A, Rosengren KJ, Daly NL, Gobert GN, Jones MK, Craik DJ, Mulvenna J. Solution structure, membrane interactions, and protein binding partners of the tetraspanin Sm-TSP-2, a vaccine antigen from the human blood fluke Schistosoma mansoni. J Biol Chem 2014; 289:7151-7163. [PMID: 24429291 DOI: 10.1074/jbc.m113.531558] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The tetraspanins (TSPs) are a family of integral membrane proteins that are ubiquitously expressed at the surface of eukaryotic cells. TSPs mediate a range of processes at the surface of the plasma membrane by providing a scaffold for the assembly of protein complexes known as tetraspanin-enriched microdomains (TEMs). We report here the structure of the surface-exposed EC2 domain from Sm-TSP-2, a TSP from Schistosoma mansoni and one of the better prospects for the development of a vaccine against schistosomiasis. This is the first solution structure of this domain, and our investigations of its interactions with lipid micelles provide a general model for interactions between TSPs, membranes, and other proteins. Using chemical cross-linking, eight potential protein constituents of Sm-TSP-2-mediated TEMs were also identified. These include proteins important for membrane maintenance and repair, providing further evidence for the functional role of Sm-TSP-2- and Sm-TSP-2-mediated TEMs. The identification of calpain, Sm29, and fructose-bisphosphate aldolase, themselves potential vaccine antigens, suggests that the Sm-TSP-2-mediated TEMs could be disrupted via multiple targets. The identification of further Sm-TSP-2-mediated TEM proteins increases the available candidates for multiplex vaccines and/or novel drugs targeting TEMs in the schistosome tegument.
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Affiliation(s)
- Xinying Jia
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia
| | - Leigh Schulte
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia; The University of Queensland, School of Veterinary Sciences, Gatton, QLD 4343, Australia
| | - Alex Loukas
- Centre for Biodiscovery and Molecular Development of Therapeutics, Queensland Tropical Health Alliance, James Cook University, Cairns, QLD 4878, Australia
| | - Darren Pickering
- Centre for Biodiscovery and Molecular Development of Therapeutics, Queensland Tropical Health Alliance, James Cook University, Cairns, QLD 4878, Australia
| | - Mark Pearson
- Centre for Biodiscovery and Molecular Development of Therapeutics, Queensland Tropical Health Alliance, James Cook University, Cairns, QLD 4878, Australia
| | - Mehdi Mobli
- The University of Queensland, Centre for Advanced Imaging, Brisbane, QLD 4072, Australia
| | - Alun Jones
- The University of Queensland, Institute for Molecular Bioscience, Brisbane, QLD 4072, Australia
| | - Karl J Rosengren
- The University of Queensland, School of Biomedical Sciences, Brisbane, QLD 4072, Australia
| | - Norelle L Daly
- Centre for Biodiscovery and Molecular Development of Therapeutics, Queensland Tropical Health Alliance, James Cook University, Cairns, QLD 4878, Australia
| | - Geoffrey N Gobert
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia
| | - Malcolm K Jones
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia; The University of Queensland, School of Veterinary Sciences, Gatton, QLD 4343, Australia
| | - David J Craik
- The University of Queensland, Institute for Molecular Bioscience, Brisbane, QLD 4072, Australia
| | - Jason Mulvenna
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia; The University of Queensland, School of Biomedical Sciences, Brisbane, QLD 4072, Australia.
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Odintsova E, van Niel G, Conjeaud H, Raposo G, Iwamoto R, Mekada E, Berditchevski F. Metastasis suppressor tetraspanin CD82/KAI1 regulates ubiquitylation of epidermal growth factor receptor. J Biol Chem 2013; 288:26323-26334. [PMID: 23897813 DOI: 10.1074/jbc.m112.439380] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Ligand-induced ubiquitylation of EGF receptor (EGFR) is an important regulatory mechanism that controls endocytic trafficking of the receptor and its signaling potential. Here we report that tetraspanin CD82/KAI1 specifically suppresses ubiquitylation of EGFR after stimulation with heparin-binding EGF or amphiregulin and alters the rate of recruitment of the activated receptor to EEA1-positive endosomes. The suppressive effect of CD82 is dependent on the heparin-binding domain of the ligand. Deletion of the C-terminal cytoplasmic domain of CD82 (CD82ΔC mutant) inhibits endocytic trafficking of the tetraspanin and compromises its activity toward heparin-binding EGF-activated EGFR. Reduced ubiquitylation of EGFR is accompanied by PKC-dependent increase in serine phosphorylation of c-Cbl in cells expressing elevated levels of CD82. Furthermore, phosphorylation of threonine 654 (PKC phosphorylation site) in the juxtamembrane domain of the receptor is considerably increased in CD82-expressing cells. These results describe previously unsuspected links between tetraspanin proteins and ubiquitylation of their molecular partners (e.g., EGFR). Our data identify CD82 as a new regulator of c-Cbl, which discriminatively controls the activity of this E3 ubiquitin ligase toward heparin-binding ligand-EGFR pairs. Taken together, these observations provide an important new insight into the modulatory role of CD82 in endocytic trafficking of EGF receptor.
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Affiliation(s)
- Elena Odintsova
- From the School of Cancer Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom,.
| | - Guillaume van Niel
- the Institut Curie, Centre de Recherche, and Unité Mixte de Recherche 144, Centre National de la Recherche Scientifique, F-75248 Paris, France
| | - Hélène Conjeaud
- the Matière et Systèmes Complexes, UMR 7057 CNRS, Université Denis Diderot Paris-VII, 75205 Paris, France, and
| | - Graça Raposo
- the Institut Curie, Centre de Recherche, and Unité Mixte de Recherche 144, Centre National de la Recherche Scientifique, F-75248 Paris, France
| | - Ryo Iwamoto
- the Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Eisuke Mekada
- the Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Fedor Berditchevski
- From the School of Cancer Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom
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47
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Yue S, Mu W, Zöller M. Tspan8 and CD151 promote metastasis by distinct mechanisms. Eur J Cancer 2013; 49:2934-48. [PMID: 23683890 DOI: 10.1016/j.ejca.2013.03.032] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 03/29/2013] [Accepted: 03/31/2013] [Indexed: 12/12/2022]
Abstract
AIM CD151 and Tspan8 are metastasis-promoting tetraspanins. To define whether Tspan8 and CD151 fulfil redundant or additive activities, Tspan8 and CD151 were stably knocked-down in highly metastatic rat pancreatic adenocarcinoma BSp73ASML cells (ASML(wt), ASML-Tspan8(kd), ASML-CD151(kd)). RESULTS ASML-CD151(kd) and ASML-Tspan8(kd) cells metastasise via the lymphatics to the lung with delay and a 2-3-fold increased survival time compared to ASML(wt) cells. Yet, CD151 and Tspan8 distinctly contribute to metastasis. Pronounced adhesion of ASML-Tspan8(kd) cells is due to CD151 associating with the alpha3 integrin chain, whereas strikingly increased ASML-CD151(kd) cell motility is efficiently inhibited by anti-beta4. These opposing Tspan8 and CD151 activities are due to distinct beta4 recruitment into Tspan8 complexes, accompanied by beta4 phosporylation, src recruitment, focal adhesion kinase (FAK) and Ras activation. On the other hand, CD151 associates more readily with proteases, particularly matrix metalloproteinase (MMP)13 and MMP9, than Tspan8. The stronger CD151-MMP association is accompanied by pronounced collagen I and IV and laminin111 degradation, also seen in metastatic tissue, and strengthens invasiveness. CONCLUSION CD151 and Tspan8 coordinately promote metastasis, where Tspan8 overrides the adhesive features of CD151 by recruiting integrins out of adhesion into motility promoting complexes. CD151 more efficiently than Tspan8 recruiting and activating MMP9 and MMP13 creates a path for migrating tumour cells.
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Affiliation(s)
- Shijing Yue
- Department of Tumor Cell Biology, University Hospital of Surgery, Heidelberg, Germany
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Tugues S, Honjo S, König C, Padhan N, Kroon J, Gualandi L, Li X, Barkefors I, Thijssen VL, Griffioen AW, Claesson-Welsh L. Tetraspanin CD63 promotes vascular endothelial growth factor receptor 2-β1 integrin complex formation, thereby regulating activation and downstream signaling in endothelial cells in vitro and in vivo. J Biol Chem 2013; 288:19060-71. [PMID: 23632027 DOI: 10.1074/jbc.m113.468199] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
CD63 is a member of the transmembrane-4 glycoprotein superfamily (tetraspanins) implicated in the regulation of membrane protein trafficking, leukocyte recruitment, and adhesion processes. We have investigated the involvement of CD63 in endothelial cell (EC) signaling downstream of β1 integrin and VEGF. We report that silencing of CD63 in primary ECs arrested capillary sprouting and tube formation in vitro because of impaired adhesion and migration of ECs. Mechanistically, CD63 associated with both β1 integrin and the main VEGF receptor on ECs, VEGFR2. Our data suggest that CD63 serves to bridge between β1 integrin and VEGFR2 because CD63 silencing disrupted VEGFR2-β1 integrin complex formation identified using proximity ligation assays. Signaling downstream of β1 integrin and VEGFR2 was attenuated in CD63-silenced cells, although their cell surface expression levels remained unaffected. CD63 was furthermore required for efficient internalization of VEGFR2 in response to VEGF. Importantly, systemic delivery of VEGF failed to potently induce VEGFR2 phosphorylation and downstream signaling in CD63-deficient mouse lungs. Taken together, our findings demonstrate a previously unrecognized role for CD63 in coordinated integrin and receptor tyrosine kinase signaling in vitro and in vivo.
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Affiliation(s)
- Sònia Tugues
- Department of Immunology, Genetics, and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden.
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