1
|
Mendonça JB, Fernandes PV, Fernandes DC, Rodrigues FR, Waghabi MC, Tilli TM. Unlocking Overexpressed Membrane Proteins to Guide Breast Cancer Precision Medicine. Cancers (Basel) 2024; 16:1402. [PMID: 38611080 PMCID: PMC11011122 DOI: 10.3390/cancers16071402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 04/14/2024] Open
Abstract
Breast cancer (BC) is a prevalent form of cancer affecting women worldwide. However, the effectiveness of current BC drugs is limited by issues such as systemic toxicity, drug resistance, and severe side effects. Consequently, there is an urgent need for new therapeutic targets and improved tumor tracking methods. This study aims to address these challenges by proposing a strategy for identifying membrane proteins in tumors that can be targeted for specific BC therapy and diagnosis. The strategy involves the analyses of gene expressions in breast tumor and non-tumor tissues and other healthy tissues by using comprehensive bioinformatics analysis from The Cancer Genome Atlas (TCGA), UALCAN, TNM Plot, and LinkedOmics. By employing this strategy, we identified four transcripts (LRRC15, EFNA3, TSPAN13, and CA12) that encoded membrane proteins with an increased expression in BC tissue compared to healthy tissue. These four transcripts also demonstrated high accuracy, specificity, and accuracy in identifying tumor samples, as confirmed by the ROC curve. Additionally, tissue microarray (TMA) analysis revealed increased expressions of the four proteins in tumor tissues across all molecular subtypes compared to the adjacent breast tissue. Moreover, the analysis of human interactome data demonstrated the important roles of these proteins in various cancer-related pathways. Taken together, these findings suggest that LRRC15, EFNA3, TSPAN13, and CA12 can serve as potential biomarkers for improving cancer diagnosis screening and as suitable targets for therapy with reduced side effects and enhanced efficacy.
Collapse
Affiliation(s)
- Júlia Badaró Mendonça
- Translational Oncology Platform, Center for Technological Development in Health, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro 21040-900, RJ, Brazil;
- Laboratory of Applied Genomics and Bioinnovation, Instituto Oswaldo Cruz (IOC) Fiocruz, Rio de Janeiro 21045-900, RJ, Brazil;
| | - Priscila Valverde Fernandes
- Divisão de Patologia (DIPAT), Instituto Nacional de Câncer (INCA), Rio de Janeiro 20230-130, RJ, Brazil; (P.V.F.); (D.C.F.); (F.R.R.)
| | - Danielle C. Fernandes
- Divisão de Patologia (DIPAT), Instituto Nacional de Câncer (INCA), Rio de Janeiro 20230-130, RJ, Brazil; (P.V.F.); (D.C.F.); (F.R.R.)
| | - Fabiana Resende Rodrigues
- Divisão de Patologia (DIPAT), Instituto Nacional de Câncer (INCA), Rio de Janeiro 20230-130, RJ, Brazil; (P.V.F.); (D.C.F.); (F.R.R.)
| | - Mariana Caldas Waghabi
- Laboratory of Applied Genomics and Bioinnovation, Instituto Oswaldo Cruz (IOC) Fiocruz, Rio de Janeiro 21045-900, RJ, Brazil;
| | - Tatiana Martins Tilli
- Translational Oncology Platform, Center for Technological Development in Health, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro 21040-900, RJ, Brazil;
- Laboratory of Clinical and Experimental Pathophysiology, IOC, Fiocruz, Rio de Janeiro 21041-210, RJ, Brazil
| |
Collapse
|
2
|
Qin S, Li W, Zeng J, Huang Y, Cai Q. Rice tetraspanins express in specific domains of diverse tissues and regulate plant architecture and root growth. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 117:892-908. [PMID: 37955978 DOI: 10.1111/tpj.16536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 10/10/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023]
Abstract
Tetraspanins (TETs) are small transmembrane scaffold proteins that distribute proteins into highly organized microdomains, consisting of adaptors and signaling proteins, which play important roles in various biological events. In plants, understanding of tetraspanin is limited to the Arabidopsis TET genes' expression pattern and their function in leaf and root growth. Here, we comprehensively analyzed all rice tetraspanin (OsTET) family members, including their gene expression pattern, protein topology, and subcellular localization. We found that the core domain of OsTETs is conserved and shares a similar topology of four membrane-spanning domains with animal and plant TETs. OsTET genes are partially overlapping expressed in diverse tissue domains in vegetative and reproductive organs. OsTET proteins preferentially targeted the endoplasmic reticulum. Mutation analysis showed that OsTET5, OsTET6, OsTET9, and OsTET10 regulated plant height and tillering, and that OsTET13 controlled root growth in association with the jasmonic acid pathway. In summary, our work provides systematic new insights into the function of OsTETs in rice growth and development, and the data provides valuable resources for future research.
Collapse
Affiliation(s)
- Shanshan Qin
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430072, China
| | - Wei Li
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430072, China
| | - Jiayue Zeng
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430072, China
| | - Yifan Huang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430072, China
| | - Qiang Cai
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Hubei Hongshan Laboratory, Wuhan, 430072, China
| |
Collapse
|
3
|
Schmidt SC, Massenberg A, Homsi Y, Sons D, Lang T. Microscopic clusters feature the composition of biochemical tetraspanin-assemblies and constitute building-blocks of tetraspanin enriched domains. Sci Rep 2024; 14:2093. [PMID: 38267610 PMCID: PMC10808221 DOI: 10.1038/s41598-024-52615-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 01/21/2024] [Indexed: 01/26/2024] Open
Abstract
Biochemical approaches revealed that tetraspanins are multi-regulatory proteins forming a web, where they act in tetraspanin-enriched-microdomains (TEMs). A microscopic criterion differentiating between web and TEMs is lacking. Using super-resolution microcopy, we identify co-assemblies between the tetraspanins CD9 and CD81 and CD151 and CD81. CD9 assemblies contain as well the CD9/CD81-interaction partner EWI-2. Moreover, CD9 clusters are proximal to clusters of the CD81-interaction partner CD44 and CD81-/EWI-2-interacting ezrin-radixin-moesin proteins. Assemblies scatter unorganized across the cell membrane; yet, upon EWI-2 elevation, they agglomerate into densely packed arranged-crowds in a process independent from actin dynamics. In conclusion, microscopic clusters are equivalent to biochemical tetraspanin-assemblies, defining in their entirety the tetraspanin web. Cluster-agglomeration enriches tetraspanins, which makes agglomerations to a microscopic complement of TEMs. The microscopic classification of tetraspanin assemblies advances our understanding of this enigmatic protein family, whose members play roles in a plethora of cellular functions, diseases, and pathogen infections.
Collapse
Affiliation(s)
- Sara C Schmidt
- Faculty of Mathematics and Natural Sciences, Life & Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Straße 31, 53115, Bonn, Germany
| | - Annika Massenberg
- Faculty of Mathematics and Natural Sciences, Life & Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Straße 31, 53115, Bonn, Germany
| | - Yahya Homsi
- Faculty of Mathematics and Natural Sciences, Life & Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Straße 31, 53115, Bonn, Germany
| | - Dominik Sons
- Faculty of Mathematics and Natural Sciences, Life & Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Straße 31, 53115, Bonn, Germany
| | - Thorsten Lang
- Faculty of Mathematics and Natural Sciences, Life & Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Straße 31, 53115, Bonn, Germany.
| |
Collapse
|
4
|
Yang J, Zhang Z, Lam JSW, Fan H, Fu NY. Molecular Regulation and Oncogenic Functions of TSPAN8. Cells 2024; 13:193. [PMID: 38275818 PMCID: PMC10814125 DOI: 10.3390/cells13020193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Tetraspanins, a superfamily of small integral membrane proteins, are characterized by four transmembrane domains and conserved protein motifs that are configured into a unique molecular topology and structure in the plasma membrane. They act as key organizers of the plasma membrane, orchestrating the formation of specialized microdomains called "tetraspanin-enriched microdomains (TEMs)" or "tetraspanin nanodomains" that are essential for mediating diverse biological processes. TSPAN8 is one of the earliest identified tetraspanin members. It is known to interact with a wide range of molecular partners in different cellular contexts and regulate diverse molecular and cellular events at the plasma membrane, including cell adhesion, migration, invasion, signal transduction, and exosome biogenesis. The functions of cell-surface TSPAN8 are governed by ER targeting, modifications at the Golgi apparatus and dynamic trafficking. Intriguingly, limited evidence shows that TSPAN8 can translocate to the nucleus to act as a transcriptional regulator. The transcription of TSPAN8 is tightly regulated and restricted to defined cell lineages, where it can serve as a molecular marker of stem/progenitor cells in certain normal tissues as well as tumors. Importantly, the oncogenic roles of TSPAN8 in tumor development and cancer metastasis have gained prominence in recent decades. Here, we comprehensively review the current knowledge on the molecular characteristics and regulatory mechanisms defining TSPAN8 functions, and discuss the potential and significance of TSPAN8 as a biomarker and therapeutic target across various epithelial cancers.
Collapse
Affiliation(s)
- Jicheng Yang
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore 169857, Singapore
- ACRF Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
- Department of Medicine, University of Melbourne, Parkville, VIC 3010, Australia
| | - Ziyan Zhang
- ACRF Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
- Department of Medicine, University of Melbourne, Parkville, VIC 3010, Australia
| | - Joanne Shi Woon Lam
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), Singapore 138671, Singapore
| | - Hao Fan
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), Singapore 138671, Singapore
| | - Nai Yang Fu
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore 169857, Singapore
- ACRF Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
- Department of Medicine, University of Melbourne, Parkville, VIC 3010, Australia
- Department of Physiology, National University of Singapore, Singapore 117593, Singapore
| |
Collapse
|
5
|
Quagliano A, Gopalakrishnapillai A, Barwe SP. Tetraspanins set the stage for bone marrow microenvironment-induced chemoprotection in hematologic malignancies. Blood Adv 2023; 7:4403-4413. [PMID: 37561544 PMCID: PMC10432613 DOI: 10.1182/bloodadvances.2023010476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/06/2023] [Indexed: 08/11/2023] Open
Abstract
Despite recent advances in the treatment of hematologic malignancies, relapse still remains a consistent issue. One of the primary contributors to relapse is the bone marrow microenvironment providing a sanctuary to malignant cells. These cells interact with bone marrow components such as osteoblasts and stromal cells, extracellular matrix proteins, and soluble factors. These interactions, mediated by the cell surface proteins like cellular adhesion molecules (CAMs), induce intracellular signaling that leads to the development of bone marrow microenvironment-induced chemoprotection (BMC). Although extensive study has gone into these CAMs, including the development of targeted therapies, very little focus in hematologic malignancies has been put on a family of cell surface proteins that are just as important for mediating bone marrow interactions: the transmembrane 4 superfamily (tetraspanins; TSPANs). TSPANs are known to be important mediators of microenvironmental interactions and metastasis based on numerous studies in solid tumors. Recently, evidence of their possible role in hematologic malignancies, specifically in the regulation of cellular adhesion, bone marrow homing, intracellular signaling, and stem cell dynamics in malignant hematologic cells has come to light. Many of these effects are facilitated by associations with CAMs and other receptors on the cell surface in TSPAN-enriched microdomains. This could suggest that TSPANs play an important role in mediating BMC in hematologic malignancies and could be used as therapeutic targets. In this review, we discuss TSPAN structure and function in hematologic cells, their interactions with different cell surface and signaling proteins, and possible ways to target/inhibit their effects.
Collapse
Affiliation(s)
- Anthony Quagliano
- Lisa Dean Moseley Foundation Institute for Cancer and Blood Disorders, Nemours Children’s Hospital, Wilmington, DE
- Department of Biological Sciences, University of Delaware, Newark, DE
| | - Anilkumar Gopalakrishnapillai
- Lisa Dean Moseley Foundation Institute for Cancer and Blood Disorders, Nemours Children’s Hospital, Wilmington, DE
- Department of Biological Sciences, University of Delaware, Newark, DE
| | - Sonali P. Barwe
- Lisa Dean Moseley Foundation Institute for Cancer and Blood Disorders, Nemours Children’s Hospital, Wilmington, DE
- Department of Biological Sciences, University of Delaware, Newark, DE
| |
Collapse
|
6
|
Jangid P, Rai U, Bakshi A, Singh R. Significance of Complement Regulatory Protein Tetraspanins in the Male Reproductive System and Fertilization. Curr Protein Pept Sci 2023; 24:240-246. [PMID: 36718968 DOI: 10.2174/1389203724666230131110203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 02/01/2023]
Abstract
Fertilization is a very sophisticated and unique process involving several key steps resulting in a zygote's formation. Recent research has indicated that some immune system-related cell surface molecules (CD molecules from the tetraspanin superfamily) may have a role in fertilization. Extracellular vesicles are undeniably involved in a variety of cellular functions, including reproduction. Tetraspanin proteins identified in extracellular vesicles are now used mostly as markers; mounting evidence indicates that they also participate in cell targeting, cargo selection, and extracellular vesicle formation. Their significance and potential in mammalian reproduction are currently being studied extensively. Despite the fact that the current data did not establish any theory, the crucial function of tetraspanins in the fertilization process was not ruled out, and the specific role of tetraspanins is still unknown. In this review, we bring insight into the existing knowledge regarding the expression of tetraspanins in spermatozoa and seminal fluid and their role in gamete binding and fusion.
Collapse
Affiliation(s)
- Pooja Jangid
- Department of Environmental Studies, Satyawati College, University of Delhi, New Delhi 110052, India
| | - Umesh Rai
- Department of Zoology, University of Delhi, New Delhi 110007, India
| | - Amrita Bakshi
- Department of Zoology, University of Delhi, New Delhi 110007, India
| | - Rajeev Singh
- Department of Environmental Studies, Satyawati College, University of Delhi, New Delhi 110052, India
- Department of Environmental Science, Jamia Millia Islamia, New Delhi 110025, India
| |
Collapse
|
7
|
Distribution of tetraspanins in bovine ovarian tissue and fresh/vitrified oocytes. Histochem Cell Biol 2023; 159:163-183. [PMID: 36242635 PMCID: PMC9922244 DOI: 10.1007/s00418-022-02155-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2022] [Indexed: 11/04/2022]
Abstract
Tetraspanin proteins are mostly known as organizers of molecular complexes on cell membranes, widely expressed on the surface of most nucleated cells. Although tetraspanins participate in many physiological processes of mammals, including reproduction, their relevance to the processes of folliculogenesis and oogenesis has not yet been fully elucidated. We bring new information regarding the distribution of tetraspanins CD9, CD81, CD151, CD82, and CD63 at different stages of follicular development in cattle. The found distribution of tetraspanin CD9, CD63, and integrin alpha V in similar areas of ovarian tissue outlined their possible cooperation. We also describe yet-unknown distribution patterns of CD151, CD82, and CD63 on immature and mature bovine oocytes. The unique localization of tetraspanins CD63 and CD82 in the zona pellucida of bovine oocytes suggested their involvement in transzonal projections. Furthermore, we present an unchanged distribution pattern of the studied tetraspanins in vitrified mature bovine oocytes. The immunofluorescent analysis was supplemented by in silico data addressing tetraspanins expression in the ovarian cells and oocytes across several species. The obtained results suggest that in the study of the oocyte development and potentially the fertilization process of cattle, the role of tetraspanins and integrins should also be taken into account.
Collapse
|
8
|
Becic A, Leifeld J, Shaukat J, Hollmann M. Tetraspanins as Potential Modulators of Glutamatergic Synaptic Function. Front Mol Neurosci 2022; 14:801882. [PMID: 35046772 PMCID: PMC8761850 DOI: 10.3389/fnmol.2021.801882] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/07/2021] [Indexed: 12/16/2022] Open
Abstract
Tetraspanins (Tspans) comprise a membrane protein family structurally defined by four transmembrane domains and intracellular N and C termini that is found in almost all cell types and tissues of eukaryotes. Moreover, they are involved in a bewildering multitude of diverse biological processes such as cell adhesion, motility, protein trafficking, signaling, proliferation, and regulation of the immune system. Beside their physiological roles, they are linked to many pathophysiological phenomena, including tumor progression regulation, HIV-1 replication, diabetes, and hepatitis. Tetraspanins are involved in the formation of extensive protein networks, through interactions not only with themselves but also with numerous other specific proteins, including regulatory proteins in the central nervous system (CNS). Interestingly, recent studies showed that Tspan7 impacts dendritic spine formation, glutamatergic synaptic transmission and plasticity, and that Tspan6 is correlated with epilepsy and intellectual disability (formerly known as mental retardation), highlighting the importance of particular tetraspanins and their involvement in critical processes in the CNS. In this review, we summarize the current knowledge of tetraspanin functions in the brain, with a particular focus on their impact on glutamatergic neurotransmission. In addition, we compare available resolved structures of tetraspanin family members to those of auxiliary proteins of glutamate receptors that are known for their modulatory effects.
Collapse
|
9
|
Zhu T, Sun Y, Chen X. Arabidopsis Tetraspanins Facilitate Virus Infection via Membrane-Recognition GCCK/RP Motif and Cysteine Residues. FRONTIERS IN PLANT SCIENCE 2022; 13:805633. [PMID: 35310653 PMCID: PMC8927881 DOI: 10.3389/fpls.2022.805633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 02/04/2022] [Indexed: 05/07/2023]
Abstract
Tetraspanins (TETs) function as key molecular scaffolds for surface signal recognition and transduction via the assembly of tetraspanin-enriched microdomains. TETs' function in mammalian has been intensively investigated for the organization of multimolecular membrane complexes, regulation of cell migration and cellular adhesion, whereas plant TET studies lag far behind. Animal and plant TETs share similar topologies, despite the hallmark of "CCG" in the large extracellular loop of animal TETs, plant TETs contain a plant specific GCCK/RP motif and more conserved cysteine residues. Here, we showed that the GCCK/RP motif is responsible for TET protein association with the plasma membrane. Moreover, the conserved cysteine residues located within or neighboring the GCCK/RP motif are both crucial for TET anchoring to membrane. During virus infection, the intact TET3 protein enhanced but GCCK/RP motif or cysteine residues-deficient TET3 variants abolished the cell-to-cell movement capability of virus. This study provides cellular evidence that the GCCK/RP motif and the conserved cysteine residues are the primary determinants for the distribution and function of TET proteins in Arabidopsis.
Collapse
Affiliation(s)
- Tingyu Zhu
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yanbiao Sun
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xu Chen
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, China
- *Correspondence: Xu Chen,
| |
Collapse
|
10
|
Lin H. Protein cysteine palmitoylation in immunity and inflammation. FEBS J 2021; 288:7043-7059. [PMID: 33506611 PMCID: PMC8872633 DOI: 10.1111/febs.15728] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/24/2020] [Accepted: 01/25/2021] [Indexed: 07/24/2023]
Abstract
Protein cysteine palmitoylation, or S-palmitoylation, has been known for about 40 years, and thousands of proteins in humans are known to be modified. Because of the large number of proteins modified, the importance and physiological functions of S-palmitoylation are enormous. However, most of the known physiological functions of S-palmitoylation can be broadly classified into two categories, neurological or immunological. This review provides a summary on the function of S-palmitoylation from the immunological perspective. Several important immune signaling pathways are discussed, including STING, NOD1/2, JAK-STAT in cytokine signaling, T-cell receptor signaling, chemotactic GPCR signaling, apoptosis, phagocytosis, and endothelial and epithelial integrity. This review is not meant to be comprehensive, but rather focuses on specific examples to highlight the versatility of palmitoylation in regulating immune signaling, as well as the potential and challenges of targeting palmitoylation to treat immune diseases.
Collapse
Affiliation(s)
- Hening Lin
- Howard Hughes Medical Institute, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
| |
Collapse
|
11
|
Quantitative characterization of tetraspanin 8 homointeractions in the plasma membrane. Biochem J 2021; 478:3643-3654. [PMID: 34524408 DOI: 10.1042/bcj20210459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/13/2021] [Accepted: 09/15/2021] [Indexed: 11/17/2022]
Abstract
The spatial distribution of proteins in cell membranes is crucial for signal transduction, cell communication and membrane trafficking. Members of the Tetraspanin family organize functional protein clusters within the plasma membrane into so-called Tetraspanin-enriched microdomains (TEMs). Direct interactions between Tetraspanins are believed to be important for this organization. However, studies thus far have utilized mainly co-immunoprecipitation methods that cannot distinguish between direct and indirect, through common partners, interactions. Here we study Tetraspanin 8 homointeractions in living cells via quantitative fluorescence microscopy. We demonstrate that Tetraspanin 8 exists in a monomer-dimer equilibrium in the plasma membrane. Tetraspanin 8 dimerization is described by a high dissociation constant (Kd = 14 700 ± 1100 Tspan8/µm2), one of the highest dissociation constants measured for membrane proteins in live cells. We propose that this high dissociation constant, and thus the short lifetime of the Tetraspanin 8 dimer, is critical for Tetraspanin 8 functioning as a master regulator of cell signaling.
Collapse
|
12
|
Tetraspanins, More than Markers of Extracellular Vesicles in Reproduction. Int J Mol Sci 2020; 21:ijms21207568. [PMID: 33066349 PMCID: PMC7589920 DOI: 10.3390/ijms21207568] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/08/2020] [Accepted: 10/08/2020] [Indexed: 02/07/2023] Open
Abstract
The participation of extracellular vesicles in many cellular processes, including reproduction, is unquestionable. Although currently, the tetraspanin proteins found in extracellular vesicles are mostly applied as markers, increasing evidence points to their role in extracellular vesicle biogenesis, cargo selection, cell targeting, and cell uptake under both physiological and pathological conditions. In this review, we bring other insight into the involvement of tetraspanin proteins in extracellular vesicle physiology in mammalian reproduction. We provide knowledge regarding the involvement of extracellular vesicle tetraspanins in these processes in somatic cells. Furthermore, we discuss the future direction towards an understanding of their functions in the tissues and fluids of the mammalian reproductive system in gamete maturation, fertilization, and embryo development; their involvement in mutual cell contact and communication in their complexity.
Collapse
|
13
|
Oosterheert W, Xenaki KT, Neviani V, Pos W, Doulkeridou S, Manshande J, Pearce NM, Kroon-Batenburg LM, Lutz M, van Bergen En Henegouwen PM, Gros P. Implications for tetraspanin-enriched microdomain assembly based on structures of CD9 with EWI-F. Life Sci Alliance 2020; 3:3/11/e202000883. [PMID: 32958604 PMCID: PMC7536822 DOI: 10.26508/lsa.202000883] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/04/2020] [Accepted: 09/04/2020] [Indexed: 01/17/2023] Open
Abstract
Crystal and single-particle cryo-EM structures reveal how the tetraspanin CD9 interacts with its prototypical partner EWI-F and provide a new concatenation model for the assembly of tetraspanin-enriched microdomains. Tetraspanins are eukaryotic membrane proteins that contribute to a variety of signaling processes by organizing partner-receptor molecules in the plasma membrane. How tetraspanins bind and cluster partner receptors into tetraspanin-enriched microdomains is unknown. Here, we present crystal structures of the large extracellular loop of CD9 bound to nanobodies 4C8 and 4E8 and, the cryo-EM structure of 4C8-bound CD9 in complex with its partner EWI-F. CD9–EWI-F displays a tetrameric arrangement with two central EWI-F molecules, dimerized through their ectodomains, and two CD9 molecules, one bound to each EWI-F transmembrane helix through CD9-helices h3 and h4. In the crystal structures, nanobodies 4C8 and 4E8 bind CD9 at loops C and D, which is in agreement with the 4C8 conformation in the CD9–EWI-F complex. The complex varies from nearly twofold symmetric (with the two CD9 copies nearly anti-parallel) to ca. 50° bent arrangements. This flexible arrangement of CD9–EWI-F with potential CD9 homo-dimerization at either end provides a “concatenation model” for forming short linear or circular assemblies, which may explain the occurrence of tetraspanin-enriched microdomains.
Collapse
Affiliation(s)
- Wout Oosterheert
- Department of Chemistry, Crystal and Structural Chemistry, Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Katerina T Xenaki
- Department of Biology, Cell Biology, Neurobiology and Biophysics, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Viviana Neviani
- Department of Chemistry, Crystal and Structural Chemistry, Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Wouter Pos
- uniQure Biopharma, Amsterdam, The Netherlands
| | - Sofia Doulkeridou
- Department of Biology, Cell Biology, Neurobiology and Biophysics, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Jip Manshande
- Department of Chemistry, Crystal and Structural Chemistry, Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Nicholas M Pearce
- Department of Chemistry, Crystal and Structural Chemistry, Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Loes Mj Kroon-Batenburg
- Department of Chemistry, Crystal and Structural Chemistry, Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Martin Lutz
- Department of Chemistry, Crystal and Structural Chemistry, Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Paul Mp van Bergen En Henegouwen
- Department of Biology, Cell Biology, Neurobiology and Biophysics, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Piet Gros
- Department of Chemistry, Crystal and Structural Chemistry, Bijvoet Centre for Biomolecular Research, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| |
Collapse
|
14
|
Komatsuya K, Kaneko K, Kasahara K. Function of Platelet Glycosphingolipid Microdomains/Lipid Rafts. Int J Mol Sci 2020; 21:ijms21155539. [PMID: 32748854 PMCID: PMC7432685 DOI: 10.3390/ijms21155539] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 01/09/2023] Open
Abstract
Lipid rafts are dynamic assemblies of glycosphingolipids, sphingomyelin, cholesterol, and specific proteins which are stabilized into platforms involved in the regulation of vital cellular processes. The rafts at the cell surface play important functions in signal transduction. Recent reports have demonstrated that lipid rafts are spatially and compositionally heterogeneous in the single-cell membrane. In this review, we summarize our recent data on living platelets using two specific probes of raft components: lysenin as a probe of sphingomyelin-rich rafts and BCθ as a probe of cholesterol-rich rafts. Sphingomyelin-rich rafts that are spatially and functionally distinct from the cholesterol-rich rafts were found at spreading platelets. Fibrin is translocated to sphingomyelin-rich rafts and platelet sphingomyelin-rich rafts act as platforms where extracellular fibrin and intracellular actomyosin join to promote clot retraction. On the other hand, the collagen receptor glycoprotein VI is known to be translocated to cholesterol-rich rafts during platelet adhesion to collagen. Furthermore, the functional roles of platelet glycosphingolipids and platelet raft-binding proteins including G protein-coupled receptors, stomatin, prohibitin, flotillin, and HflK/C-domain protein family, tetraspanin family, and calcium channels are discussed.
Collapse
|
15
|
Jankovičová J, Neuerová Z, Sečová P, Bartóková M, Bubeníčková F, Komrsková K, Postlerová P, Antalíková J. Tetraspanins in mammalian reproduction: spermatozoa, oocytes and embryos. Med Microbiol Immunol 2020; 209:407-425. [PMID: 32424440 DOI: 10.1007/s00430-020-00676-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/02/2020] [Indexed: 12/21/2022]
Abstract
It is known that tetraspanin proteins are involved in many physiological somatic cell mechanisms. Additionally, research has indicated they also have a role in various infectious diseases and cancers. This review focuses on the molecular interactions underlying the tetraspanin web formation in gametes. Primarily, tetraspanins act in the reproductive tract as organizers of membrane complexes, which include the proteins involved in the contact and association of sperm and oocyte membranes. In addition, recent data shows that tetraspanins are likely to be involved in these processes in a complex way. In mammalian fertilization, an important role is attributed to CD molecules belonging to the tetraspanin superfamily, particularly CD9, CD81, CD151, and also CD63; mostly as part of extracellular vesicles, the significance of which and their potential in reproduction is being intensively investigated. In this article, we reviewed the existing knowledge regarding the expression of tetraspanins CD9, CD81, CD151, and CD63 in mammalian spermatozoa, oocytes, and embryos and their involvement in reproductive processes, including pathological events.
Collapse
Affiliation(s)
- Jana Jankovičová
- Laboratory of Reproductive Physiology, Center of Biosciences, Institute of Animal Biochemistry and Genetics, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Zdeňka Neuerová
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Vestec, Czech Republic
- Faculty of Science, University of Hradec Králové, Hradec Králové, Czech Republic
| | - Petra Sečová
- Laboratory of Reproductive Physiology, Center of Biosciences, Institute of Animal Biochemistry and Genetics, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Michaela Bartóková
- Laboratory of Reproductive Physiology, Center of Biosciences, Institute of Animal Biochemistry and Genetics, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Filipa Bubeníčková
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Kateřina Komrsková
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Vestec, Czech Republic
- Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Pavla Postlerová
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Vestec, Czech Republic
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Jana Antalíková
- Laboratory of Reproductive Physiology, Center of Biosciences, Institute of Animal Biochemistry and Genetics, Slovak Academy of Sciences, Bratislava, Slovak Republic.
| |
Collapse
|
16
|
Badierah RA, Uversky VN, Redwan EM. Dancing with Trojan horses: an interplay between the extracellular vesicles and viruses. J Biomol Struct Dyn 2020; 39:3034-3060. [DOI: 10.1080/07391102.2020.1756409] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Raied A. Badierah
- Biological Science Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Molecular Diagnostic Laboratory, King Abdulaziz University Hospital, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Vladimir N. Uversky
- Biological Science Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
- Laboratory of New Methods in Biology, Institute for Biological Instrumentation, Russian Academy of Sciences, Federal Research Center ‘Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences’, Pushchino, Moscow Region, Russia
| | - Elrashdy M. Redwan
- Biological Science Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
17
|
Neviani V, van Deventer S, Wörner TP, Xenaki KT, van de Waterbeemd M, Rodenburg RNP, Wortel IMN, Kuiper JK, Huisman S, Granneman J, van Bergen En Henegouwen PMP, Heck AJR, van Spriel AB, Gros P. Site-specific functionality and tryptophan mimicry of lipidation in tetraspanin CD9. FEBS J 2020; 287:5323-5344. [PMID: 32181977 PMCID: PMC7818406 DOI: 10.1111/febs.15295] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/19/2020] [Accepted: 03/13/2020] [Indexed: 12/18/2022]
Abstract
Lipidation of transmembrane proteins regulates many cellular activities, including signal transduction, cell–cell communication, and membrane trafficking. However, how lipidation at different sites in a membrane protein affects structure and function remains elusive. Here, using native mass spectrometry we determined that wild‐type human tetraspanins CD9 and CD81 exhibit nonstochastic distributions of bound acyl chains. We revealed CD9 lipidation at its three most frequent lipidated sites suffices for EWI‐F binding, while cysteine‐to‐alanine CD9 mutations markedly reduced binding of EWI‐F. EWI‐F binding by CD9 was rescued by mutating all or, albeit to a lesser extent, only the three most frequently lipidated sites into tryptophans. These mutations did not affect the nanoscale distribution of CD9 in cell membranes, as shown by super‐resolution microscopy using a CD9‐specific nanobody. Thus, these data demonstrate site‐specific, possibly conformation‐dependent, functionality of lipidation in tetraspanin CD9 and identify tryptophan mimicry as a possible biochemical approach to study site‐specific transmembrane‐protein lipidation.
Collapse
Affiliation(s)
- Viviana Neviani
- Crystal and Structural Chemistry, Department of Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, The Netherlands
| | - Sjoerd van Deventer
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud UMC, Nijmegen, The Netherlands
| | - Tobias P Wörner
- Biomolecular Mass Spectrometry and Proteomics, Department of Chemistry, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, The Netherlands
| | - Katerina T Xenaki
- Cell Biology, Department of Biology, Utrecht University, The Netherlands
| | - Michiel van de Waterbeemd
- Biomolecular Mass Spectrometry and Proteomics, Department of Chemistry, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, The Netherlands
| | - Remco N P Rodenburg
- Crystal and Structural Chemistry, Department of Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, The Netherlands
| | - Inge M N Wortel
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud UMC, Nijmegen, The Netherlands
| | - Jeroen K Kuiper
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud UMC, Nijmegen, The Netherlands
| | - Sofie Huisman
- Crystal and Structural Chemistry, Department of Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, The Netherlands
| | - Joke Granneman
- Crystal and Structural Chemistry, Department of Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, The Netherlands
| | | | - Albert J R Heck
- Biomolecular Mass Spectrometry and Proteomics, Department of Chemistry, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, The Netherlands
| | - Annemiek B van Spriel
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud UMC, Nijmegen, The Netherlands
| | - Piet Gros
- Crystal and Structural Chemistry, Department of Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, The Netherlands
| |
Collapse
|
18
|
Jankovicova J, Frolikova M, Palenikova V, Valaskova E, Cerny J, Secova P, Bartokova M, Horovska L, Manaskova-Postlerova P, Antalikova J, Komrskova K. Expression and distribution of CD151 as a partner of alpha6 integrin in male germ cells. Sci Rep 2020; 10:4374. [PMID: 32152440 PMCID: PMC7062741 DOI: 10.1038/s41598-020-61334-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 02/24/2020] [Indexed: 12/22/2022] Open
Abstract
The physiological importance of CD151 tetraspanin is known from somatic cells and its outside-in signalling through integrins was described. In male germ cells, two tetraspanins, CD9 and CD81, are involved in sperm-egg membrane fusion, and similarly to integrins, they occupy characteristic regions. We report here on a newly discovered presence of CD151 in sperm, and present its expression and distribution during spermatogenesis and sperm transition during the acrosome reaction. We traced CD151 gene and protein expression in testicular cell subpopulations, with strong enrichment in spermatogonia and spermatids. The testicular and epididymal localization pattern is designated to the sperm head primary fusion site called the equatorial segment and when compared to the acrosome vesicle status, CD151 was located into the inner acrosomal membrane overlying the nucleus. Moreover, we show CD151 interaction with α6 integrin subunit, which forms a dimer with β4 as a part of cis-protein interactions within sperm prior to gamete fusion. We used mammalian species with distinct sperm morphology and sperm maturation such as mouse and bull and compared the results with human. In conclusion, the delivered findings characterise CD151 as a novel sperm tetraspanin network member and provide knowledge on its physiology in male germ cells.
Collapse
Affiliation(s)
- J Jankovicova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovak Republic
| | - M Frolikova
- Laboratory of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50, Vestec, Czech Republic
| | - V Palenikova
- Laboratory of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50, Vestec, Czech Republic.,Department of Biochemistry, Faculty of Science, Charles University, Hlavova 8, 128 40, Prague 2, Czech Republic
| | - E Valaskova
- Laboratory of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50, Vestec, Czech Republic
| | - J Cerny
- Laboratory of Structural Bioinformatics of Proteins, Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50, Vestec, Czech Republic
| | - P Secova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovak Republic
| | - M Bartokova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovak Republic
| | - L Horovska
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovak Republic
| | - P Manaskova-Postlerova
- Laboratory of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50, Vestec, Czech Republic.,Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, University of Life Sciences Prague, Kamycka 129, 165 00, Prague 6, Czech Republic
| | - J Antalikova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovak Republic.
| | - K Komrskova
- Laboratory of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50, Vestec, Czech Republic. .,Department of Zoology, Faculty of Science, Charles University, Vinicna 7, 128 44, Prague 2, Czech Republic.
| |
Collapse
|
19
|
Wong AH, Tran T. CD151 in Respiratory Diseases. Front Cell Dev Biol 2020; 8:64. [PMID: 32117989 PMCID: PMC7020194 DOI: 10.3389/fcell.2020.00064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/22/2020] [Indexed: 12/25/2022] Open
Abstract
The tetraspanin, Cluster of Differentiation 151 (CD151), is ubiquitously expressed in adult tissue, especially in the lungs where it has been implicated in lung cancer, asthma, influenza, and idiopathic pulmonary fibrosis (IPF). CD151 interacts with laminin-binding integrins and growth factor receptors, and is reported in cancer-promoting processes such as tumor initiation, metastasis, and angiogenesis. In asthma, CD151 was shown to promote airways hyperresponsiveness through calcium signaling whereas in influenza, CD151 was shown to be a novel host factor for nuclear viral export signaling. Furthermore, CD151 was shown to be associated with increased disease severity and poorer survival outcome in asthma and lung cancer, respectively. In this review, we provide an update on the current understanding of CD151 with regards to its contribution to lung pathophysiology. We also summarize factors that have been shown to regulate CD151 expression and identify key areas that need to be taken into consideration for its utility as a screening or prognostic tool in disease management and/or as a therapeutic target for the treatment of lung diseases.
Collapse
Affiliation(s)
- Amanda H Wong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Thai Tran
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| |
Collapse
|
20
|
Eschenbrenner E, Jouannet S, Clay D, Chaker J, Boucheix C, Brou C, Tomlinson MG, Charrin S, Rubinstein E. TspanC8 tetraspanins differentially regulate ADAM10 endocytosis and half-life. Life Sci Alliance 2020; 3:e201900444. [PMID: 31792032 PMCID: PMC6892437 DOI: 10.26508/lsa.201900444] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 12/24/2022] Open
Abstract
ADAM10 is a transmembrane metalloprotease that is essential for development and tissue homeostasis. It cleaves the ectodomain of many proteins, including amyloid precursor protein, and plays an essential role in Notch signaling. ADAM10 associates with six members of the tetraspanin superfamily referred to as TspanC8 (Tspan5, Tspan10, Tspan14, Tspan15, Tspan17, and Tspan33), which regulate its exit from the endoplasmic reticulum and its substrate selectivity. We now show that ADAM10, Tspan5, and Tspan15 influence each other's expression level. Notably, ADAM10 undergoes faster endocytosis in the presence of Tspan5 than in the presence of Tspan15, and Tspan15 stabilizes ADAM10 at the cell surface yielding high expression levels. Reciprocally, ADAM10 stabilizes Tspan15 at the cell surface, indicating that it is the Tspan15/ADAM10 complex that is retained at the plasma membrane. Chimeric molecules indicate that the cytoplasmic domains of these tetraspanins contribute to their opposite action on ADAM10 trafficking and Notch signaling. In contrast, an unusual palmitoylation site at the end of Tspan15 C-terminus is dispensable. Together, these findings uncover a new level of ADAM10 regulation by TspanC8 tetraspanins.
Collapse
Affiliation(s)
- Etienne Eschenbrenner
- Inserm, U935, Villejuif, France
- Université Paris-Sud, Institut André Lwoff, Villejuif, France
| | - Stéphanie Jouannet
- Inserm, U935, Villejuif, France
- Université Paris-Sud, Institut André Lwoff, Villejuif, France
| | - Denis Clay
- Université Paris-Sud, Institut André Lwoff, Villejuif, France
- Inserm, Unité Mixte de Service UMS33, Villejuif, France
| | - Joëlle Chaker
- Inserm, U935, Villejuif, France
- Université Paris-Sud, Institut André Lwoff, Villejuif, France
| | - Claude Boucheix
- Inserm, U935, Villejuif, France
- Université Paris-Sud, Institut André Lwoff, Villejuif, France
| | - Christel Brou
- Institut Pasteur, Unit of Membrane Trafficking and Pathogenesis, Department of Cell Biology and Infection, Paris, France
| | - Michael G Tomlinson
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - Stéphanie Charrin
- Inserm, U935, Villejuif, France
- Université Paris-Sud, Institut André Lwoff, Villejuif, France
| | - Eric Rubinstein
- Inserm, U935, Villejuif, France
- Université Paris-Sud, Institut André Lwoff, Villejuif, France
| |
Collapse
|
21
|
Abstract
Integrins are heterodimeric cell surface receptors ensuring the mechanical connection between cells and the extracellular matrix. In addition to the anchorage of cells to the extracellular matrix, these receptors have critical functions in intracellular signaling, but are also taking center stage in many physiological and pathological conditions. In this review, we provide some historical, structural, and physiological notes so that the diverse functions of these receptors can be appreciated and put into the context of the emerging field of mechanobiology. We propose that the exciting journey of the exploration of these receptors will continue for at least another new generation of researchers.
Collapse
Affiliation(s)
- Michael Bachmann
- Department of Cell Physiology and Metabolism, University of Geneva, Centre Médical Universitaire , Geneva , Switzerland ; and Faculty of Medicine and Health Technology, Tampere University, and Fimlab Laboratories , Tampere , Finland
| | - Sampo Kukkurainen
- Department of Cell Physiology and Metabolism, University of Geneva, Centre Médical Universitaire , Geneva , Switzerland ; and Faculty of Medicine and Health Technology, Tampere University, and Fimlab Laboratories , Tampere , Finland
| | - Vesa P Hytönen
- Department of Cell Physiology and Metabolism, University of Geneva, Centre Médical Universitaire , Geneva , Switzerland ; and Faculty of Medicine and Health Technology, Tampere University, and Fimlab Laboratories , Tampere , Finland
| | - Bernhard Wehrle-Haller
- Department of Cell Physiology and Metabolism, University of Geneva, Centre Médical Universitaire , Geneva , Switzerland ; and Faculty of Medicine and Health Technology, Tampere University, and Fimlab Laboratories , Tampere , Finland
| |
Collapse
|
22
|
Te Molder L, Juksar J, Harkes R, Wang W, Kreft M, Sonnenberg A. Tetraspanin CD151 and integrin α3β1 contribute to the stabilization of integrin α6β4-containing cell-matrix adhesions. J Cell Sci 2019; 132:jcs.235366. [PMID: 31488507 DOI: 10.1242/jcs.235366] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 08/28/2019] [Indexed: 12/22/2022] Open
Abstract
Tetraspanin CD151 has been suggested to regulate cell adhesion through its association with laminin-binding integrins α3β1 and α6β4; however, its precise function in keratinocyte adhesion remains elusive. In this study, we investigated the role of CD151 in the formation and maintenance of laminin-associated adhesions. We show that CD151, through binding to integrin α3β1, plays a critical role in the stabilization of an adhesion structure with a distinct molecular composition of hemidesmosomes with tetraspanin features. These hybrid cell-matrix adhesions, which are formed early during cell adhesion and spreading and at later stages of cell spreading, are present in the central region of the cells. They contain the CD151-α3β1/α6β4 integrin complexes and the cytoskeletal linker protein plectin, but are not anchored to the keratin filaments. In contrast, hemidesmosomes, keratin filament-associated adhesions that contain integrin α6β4, plectin, BP180 (encoded by COL17A1) and BP230 (encoded by DST), do not require CD151 for their formation or maintenance. These findings provide new insights into the dynamic and complex regulation of adhesion structures in keratinocytes and the pathogenic mechanisms underlying skin blistering diseases caused by mutations in the gene for CD151.
Collapse
Affiliation(s)
- Lisa Te Molder
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Juri Juksar
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Rolf Harkes
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Wei Wang
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Maaike Kreft
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Arnoud Sonnenberg
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| |
Collapse
|
23
|
Chen W, Hsu W, Hsu H, Yang C. A tetraspanin gene regulating auxin response and affecting orchid perianth size and various plant developmental processes. PLANT DIRECT 2019; 3:e00157. [PMID: 31406958 PMCID: PMC6680136 DOI: 10.1002/pld3.157] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/18/2019] [Accepted: 07/18/2019] [Indexed: 05/25/2023]
Abstract
The competition between L (lip) and SP (sepal/petal) complexes in P-code model determines the identity of complex perianth patterns in orchids. Orchid tetraspanin gene Auxin Activation Factor (AAF) orthologs, whose expression strongly correlated with the expansion and size of the perianth after P code established, were identified. Virus-induced gene silencing (VIGS) of OAGL6-2 in L complex resulted in smaller lips and the down-regulation of Oncidium OnAAF. VIGS of PeMADS9 in L complex resulted in the enlarged lips and up-regulation of Phalaenopsis PaAAF. Furthermore, the larger size of Phalaenopsis variety flowers was associated with higher PaAAF expression, larger and more cells in the perianth. Thus, a rule is established that whenever bigger perianth organs are made in orchids, higher OnAAF/PaAAF expression is observed after their identities are determined by P-code complexes. Ectopic expression Arabidopsis AtAAF significantly increased the size of flower organs by promoting cell expansion in transgenic Arabidopsis due to the enhancement of the efficiency of the auxin response and the subsequent suppression of the jasmonic acid (JA) biosynthesis genes (DAD1/OPR3) and BIGPETAL gene during late flower development. In addition, auxin-controlled phenotypes, such as indehiscent anthers, enhanced drought tolerance, and increased lateral root formation, were also observed in 35S::AtAAF plants. Furthermore, 35S::AtAAF root tips maintained gravitropism during auxin treatment. In contrast, the opposite phenotype was observed in palmitoylation-deficient AtAAF mutants. Our data demonstrate an interaction between the tetraspanin AAF and auxin/JA that regulates the size of flower organs and impacts various developmental processes.
Collapse
Affiliation(s)
- Wei‐Hao Chen
- Institute of BiotechnologyNational Chung Hsing UniversityTaichungTaiwan, ROC
| | - Wei‐Han Hsu
- Institute of BiotechnologyNational Chung Hsing UniversityTaichungTaiwan, ROC
| | - Hsing‐Fun Hsu
- Institute of BiotechnologyNational Chung Hsing UniversityTaichungTaiwan, ROC
| | - Chang‐Hsien Yang
- Institute of BiotechnologyNational Chung Hsing UniversityTaichungTaiwan, ROC
- Advanced Plant Biotechnology CenterNational Chung Hsing UniversityTaichungTaiwan, ROC
| |
Collapse
|
24
|
Tam JM, Reedy JL, Lukason DP, Kuna SG, Acharya M, Khan NS, Negoro PE, Xu S, Ward RA, Feldman MB, Dutko RA, Jeffery JB, Sokolovska A, Wivagg CN, Lassen KG, Le Naour F, Matzaraki V, Garner EC, Xavier RJ, Kumar V, van de Veerdonk FL, Netea MG, Miranti CK, Mansour MK, Vyas JM. Tetraspanin CD82 Organizes Dectin-1 into Signaling Domains to Mediate Cellular Responses to Candida albicans. THE JOURNAL OF IMMUNOLOGY 2019; 202:3256-3266. [PMID: 31010852 DOI: 10.4049/jimmunol.1801384] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 03/26/2019] [Indexed: 11/19/2022]
Abstract
Tetraspanins are a family of proteins possessing four transmembrane domains that help in lateral organization of plasma membrane proteins. These proteins interact with each other as well as other receptors and signaling proteins, resulting in functional complexes called "tetraspanin microdomains." Tetraspanins, including CD82, play an essential role in the pathogenesis of fungal infections. Dectin-1, a receptor for the fungal cell wall carbohydrate β-1,3-glucan, is vital to host defense against fungal infections. The current study identifies a novel association between tetraspanin CD82 and Dectin-1 on the plasma membrane of Candida albicans-containing phagosomes independent of phagocytic ability. Deletion of CD82 in mice resulted in diminished fungicidal activity, increased C. albicans viability within macrophages, and decreased cytokine production (TNF-α, IL-1β) at both mRNA and protein level in macrophages. Additionally, CD82 organized Dectin-1 clustering in the phagocytic cup. Deletion of CD82 modulates Dectin-1 signaling, resulting in a reduction of Src and Syk phosphorylation and reactive oxygen species production. CD82 knockout mice were more susceptible to C. albicans as compared with wild-type mice. Furthermore, patient C. albicans-induced cytokine production was influenced by two human CD82 single nucleotide polymorphisms, whereas an additional CD82 single nucleotide polymorphism increased the risk for candidemia independent of cytokine production. Together, these data demonstrate that CD82 organizes the proper assembly of Dectin-1 signaling machinery in response to C. albicans.
Collapse
Affiliation(s)
- Jenny M Tam
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Jennifer L Reedy
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Daniel P Lukason
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Sunnie G Kuna
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Mridu Acharya
- Immunology Program, Benaroya Research Institute, Seattle, WA 98101.,Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101
| | - Nida S Khan
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114.,Biomedical Engineering and Biotechnology, University of Massachusetts Medical School, Worcester, MA 01655.,Department of Medicine, Harvard Medical School, Boston, MA 02115
| | - Paige E Negoro
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Shuying Xu
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Rebecca A Ward
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Michael B Feldman
- Department of Medicine, Harvard Medical School, Boston, MA 02115.,Pulmonary and Critical Care Medicine, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Richard A Dutko
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Jane B Jeffery
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114
| | - Anna Sokolovska
- Department of Developmental Immunology, Massachusetts General Hospital, Boston, MA 02114
| | - Carl N Wivagg
- Department of Medicine, Harvard Medical School, Boston, MA 02115
| | - Kara G Lassen
- Broad Institute of Harvard and MIT, Cambridge, MA 02142.,Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114
| | | | - Vasiliki Matzaraki
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Ethan C Garner
- Center for Systems Biology, Harvard University, Boston, MA 02115
| | - Ramnik J Xavier
- Department of Medicine, Harvard Medical School, Boston, MA 02115.,Broad Institute of Harvard and MIT, Cambridge, MA 02142.,Gastrointestinal Unit/Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Boston, MA 02114; and
| | - Vinod Kumar
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Frank L van de Veerdonk
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Cindy K Miranti
- Department of Cellular and Molecular Medicine, University of Arizona Health Sciences, Tucson, AZ 85724
| | - Michael K Mansour
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114.,Department of Medicine, Harvard Medical School, Boston, MA 02115
| | - Jatin M Vyas
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114; .,Department of Medicine, Harvard Medical School, Boston, MA 02115
| |
Collapse
|
25
|
Rajagopal N, Irudayanathan FJ, Nangia S. Palmitoylation of Claudin-5 Proteins Influences Their Lipid Domain Affinity and Tight Junction Assembly at the Blood–Brain Barrier Interface. J Phys Chem B 2019; 123:983-993. [DOI: 10.1021/acs.jpcb.8b09535] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nandhini Rajagopal
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse 13244, United States
| | | | - Shikha Nangia
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse 13244, United States
| |
Collapse
|
26
|
Tian J, Zhang R, Piao H, Li X, Sheng W, Zhou J, Dong M, Zhang X, Yan X, Shang W, Zhao J, Xu L, Liu F, Shi G. Silencing Tspan1 inhibits migration and invasion, and induces the apoptosis of human pancreatic cancer cells. Mol Med Rep 2018; 18:3280-3288. [PMID: 30066932 PMCID: PMC6102649 DOI: 10.3892/mmr.2018.9331] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 03/05/2018] [Indexed: 12/18/2022] Open
Abstract
Pancreatic cancer (PCC) is one of the most dangerous types of tumor as it is very difficult to treat and its 5-year survival rate is <6%. To date, there have been no effective therapeutic strategies to treat PCC, thus, novel effective therapeutic methods are required. Tetraspanin 1 (Tspan1) is a novel member of the tetraspanins superfamily and is highly expressed in a variety of types of cancer, including gastric, hepatocellular and colonic carcinomas. However, the detailed functional role of Tspan1 in pancreatic cancer cells is still unclear and further investigation is required to uncover its therapeutic potential for the treatment of different tumor types. The purpose of the present study was to investigate the expression of Tspan1 in human PCC tissues and cells, and explore the effect of Tspan1 silencing on invasion, migration, cell survival and apoptosis in human PCC to clarify its function. Expression levels of Tspan1 were analyzed in human pancreatic cancer tissues and the cell lines Capan-2 and SW1990 using immunohistochemistry staining, reverse transcription-quantitative polymerase chain reaction and western blotting. The effects of downregulation of Tspan1 expression on cell survival, apoptosis, invasion and migration were investigated viaTspan1-small interfering (si)RNA transfection into human PCC cell lines. The results indicated that Tspan1 expression was increased in human PCC tissues compared with the adjacent normal pancreatic tissues. Tspan1 was highly expressed in the human PCC cell lines Capan-2 and SW1990 when compared with the normal pancreatic cell line HPC-Y5. In addition, transfection with siRNA-targeting Tspan1 significantly reduced cell migration and invasion, and increased the cell apoptosis of Capan-2 and SW1990. The present findings highlighted the important role of Tspan1 in human PCC cell migration, invasion and apoptosis. Thus, Tspan1 RNA interference may serve as a potential therapeutic strategy to treat human PCC.
Collapse
Affiliation(s)
- Jiaxun Tian
- Department of Laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Rui Zhang
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Haiyan Piao
- Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Xiaoxi Li
- Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Weiwei Sheng
- Gastrointestinal Surgery Department, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jianping Zhou
- Gastrointestinal Surgery Department, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Ming Dong
- Gastrointestinal Surgery Department, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xiaobo Zhang
- General Surgery Department, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xiaofei Yan
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Wen Shang
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Jianfeng Zhao
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Lan Xu
- Department of Laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Fang Liu
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Gang Shi
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| |
Collapse
|
27
|
Frolikova M, Manaskova-Postlerova P, Cerny J, Jankovicova J, Simonik O, Pohlova A, Secova P, Antalikova J, Dvorakova-Hortova K. CD9 and CD81 Interactions and Their Structural Modelling in Sperm Prior to Fertilization. Int J Mol Sci 2018; 19:ijms19041236. [PMID: 29671763 PMCID: PMC5979608 DOI: 10.3390/ijms19041236] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/10/2018] [Accepted: 04/13/2018] [Indexed: 11/16/2022] Open
Abstract
Proteins CD9 and CD81 are members of the tetraspanin superfamily and were detected in mammalian sperm, where they are suspected to form an active tetraspanin web and to participate in sperm–egg membrane fusion. The importance of these two proteins during the early stages of fertilization is supported by the complete sterility of CD9/CD81 double null female mice. In this study, the putative mechanism of CD9/CD81 involvement in tetraspanin web formation in sperm and its activity prior to fertilization was addressed. Confocal microscopy and colocalization assay was used to determine a mutual CD9/CD81 localization visualised in detail by super-resolution microscopy, and their interaction was address by co-immunoprecipitation. The species-specific traits in CD9 and CD81 distribution during sperm maturation were compared between mice and humans. A mutual position of CD9/CD81 is shown in human spermatozoa in the acrosomal cap, however in mice, CD9 and CD81 occupy a distinct area. During the acrosome reaction in human sperm, only CD9 is relocated, compared to the relocation of both proteins in mice. The structural modelling of CD9 and CD81 homologous and possibly heterologous network formation was used to propose their lateral Cis as well as Trans interactions within the sperm membrane and during sperm–egg membrane fusion.
Collapse
Affiliation(s)
- Michaela Frolikova
- Group of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, v.v.i., BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.
| | - Pavla Manaskova-Postlerova
- Group of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, v.v.i., BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic.
| | - Jiri Cerny
- Laboratory of Structural Bioinformatics of Proteins, Institute of Biotechnology Czech Academy of Sciences, v.v.i., BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.
| | - Jana Jankovicova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics Centre of Biosciences Slovak Academy of Sciences, Dubravska Cesta 9, 845 05 Bratislava, Slovakia.
| | - Ondrej Simonik
- Group of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, v.v.i., BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic.
| | - Alzbeta Pohlova
- Group of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, v.v.i., BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague, Czech Republic.
| | - Petra Secova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics Centre of Biosciences Slovak Academy of Sciences, Dubravska Cesta 9, 845 05 Bratislava, Slovakia.
| | - Jana Antalikova
- Laboratory of Reproductive Physiology, Institute of Animal Biochemistry and Genetics Centre of Biosciences Slovak Academy of Sciences, Dubravska Cesta 9, 845 05 Bratislava, Slovakia.
| | - Katerina Dvorakova-Hortova
- Group of Reproductive Biology, Institute of Biotechnology, Czech Academy of Sciences, v.v.i., BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.
- Department of Zoology, Faculty of Science, Charles University, Vinicna 7, 128 44 Prague, Czech Republic.
| |
Collapse
|
28
|
Zhang J, Wu T, Zhan S, Qiao N, Zhang X, Zhu Y, Yang N, Sun Y, Zhang XA, Bleich D, Han X. TIMP-1 and CD82, a promising combined evaluation marker for PDAC. Oncotarget 2018; 8:6496-6512. [PMID: 28030805 PMCID: PMC5351648 DOI: 10.18632/oncotarget.14133] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 11/11/2016] [Indexed: 11/25/2022] Open
Abstract
Tissue inhibitor of metalloproteinases-1 (TIMP-1) is a widely secreted protein that regulates cell motility, proliferation, and apoptosis. Although it is recognized that TIMP-1-tetraspanin CD63 regulates epithelial cell apoptosis and proliferation, how TIMP-1 controls cell motility is not well understood. In this study, we identify tetraspanin CD82 (also called KAI1) as a component of the promiscuous TIMP-1 interacting protein complex on cell surface of human pancreatic adenocarcinoma cells. CD82 directly binds to TIMP-1 N-terminal region through its large extracellular loop and co-localizes with TIMP-1 in both cancer cell lines and clinical samples. Moreover, CD82 facilitates membrane-bound TIMP-1 endocytosis, which significantly contributes to the anti-migration effect of TIMP-1. CD82 silencing partially eliminates these functions. TIMP-1 and CD82 expression status in patients with pancreatic ductal adenocarcinoma (PDAC) might demonstrate future usefulness as a differentiation marker and give us new insight into tumorigenic metastatic potential.
Collapse
Affiliation(s)
- Jiexin Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tijun Wu
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| | - Shanshan Zhan
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| | - Nan Qiao
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| | - Xu Zhang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| | - Yunxia Zhu
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| | - Nan Yang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| | - Yujie Sun
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| | - Xin A Zhang
- Stephenson Cancer Center and Department of Physiology, University of Oklahoma Health Science Center, Oklahoma, OK, USA
| | - David Bleich
- Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Xiao Han
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| |
Collapse
|
29
|
Nievas YR, Vashisht AA, Corvi MM, Metz S, Johnson PJ, Wohlschlegel JA, de Miguel N. Protein Palmitoylation Plays an Important Role in Trichomonas vaginalis Adherence. Mol Cell Proteomics 2018; 17:2229-2241. [PMID: 29444981 DOI: 10.1074/mcp.ra117.000018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 01/03/2018] [Indexed: 01/16/2023] Open
Abstract
The flagellated protozoan parasite Trichomonas vaginalis is the etiologic agent of trichomoniasis, the most common non-viral sexually transmitted infection worldwide. As an obligate extracellular pathogen, adherence to epithelial cells is critical for parasite survival within the human host and a better understanding of this process is a prerequisite for the development of therapies to combat infection. In this sense, recent work has shown S-acylation as a key modification that regulates pathogenesis in different protozoan parasites. However, there are no reports indicating whether this post-translational modification is a mechanism operating in T. vaginalis In order to study the extent and function of S-acylation in T. vaginalis biology, we undertook a proteomic study to profile the full scope of S-acylated proteins in this parasite and reported the identification of 363 proteins involved in a variety of biological processes such as protein transport, pathogenesis related and signaling, among others. Importantly, treatment of parasites with the palmitoylation inhibitor 2-bromopalmitate causes a significant decrease in parasite: parasite aggregation as well as adherence to host cells suggesting that palmitoylation could be modifying proteins that are key regulators of Trichomonas vaginalis pathogenesis.
Collapse
Affiliation(s)
- Yesica R Nievas
- From the ‡Laboratorio de Parásitos Anaerobios, Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico Chascomús (IIB-INTECH), CONICET-UNSAM, Chascomús B7130IWA, Argentina
| | - Ajay A Vashisht
- §Department of Biological Chemistry, University of California, Los Angeles, California, 90095-1489
| | - Maria M Corvi
- ¶Laboratorio de Bioquímica de Parásitos, Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico Chascomús (IIB-INTECH), CONICET-UNSAM, Chascomús B7130IWA, Argentina
| | - Sebastian Metz
- From the ‡Laboratorio de Parásitos Anaerobios, Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico Chascomús (IIB-INTECH), CONICET-UNSAM, Chascomús B7130IWA, Argentina
| | - Patricia J Johnson
- ‖Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, California, 90095-1489
| | - James A Wohlschlegel
- §Department of Biological Chemistry, University of California, Los Angeles, California, 90095-1489
| | - Natalia de Miguel
- From the ‡Laboratorio de Parásitos Anaerobios, Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico Chascomús (IIB-INTECH), CONICET-UNSAM, Chascomús B7130IWA, Argentina;
| |
Collapse
|
30
|
Zeng P, Wang YH, Si M, Gu JH, Li P, Lu PH, Chen MB. Tetraspanin CD151 as an emerging potential poor prognostic factor across solid tumors: a systematic review and meta-analysis. Oncotarget 2018; 8:5592-5602. [PMID: 27888619 PMCID: PMC5354932 DOI: 10.18632/oncotarget.13532] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 11/02/2016] [Indexed: 02/01/2023] Open
Abstract
Tetraspanin CD151, also known as PETA-3 or SFA-1, has been reported to predict prognosis in various solid tumors. Yet, the results of these studies remained inconclusive. Here, we performed this meta-analysis of relevant studies published on the topic to quantitatively evaluate the clinicopathological significance of CD151 in solid tumors. The relevant articles were identified via searching the PubMed, Web of Science and Embase database. The pooled hazard ratios (HRs) and corresponding 95% confidence intervals (CI) of overall survival (OS) and disease-free survival (DFS) were calculated to evaluate the prognostic value of CD151 expression in patients with solid tumors. A total of 19 studies involving 4, 270 participants were included in the study, we drew the conclusion that CD151 overexpression was associated with statistically significant poor OS (pooled HR = 1.498, 95% CI = 1.346-1.667, P<0.001) and poor DFS (pooled HR = 1.488, 95% CI = 1.314-1.685, P<0.001). Furthermore, the subgroup analysis revealed that the associations between CD151 overexpression and the outcome endpoints (OS or TTP) were significant within the Asian region and European, as well in patients with breast cancer or gastric cancer. Taken together, the incorporative HR showed CD151 overexpression was associated with poor survival in human solid tumors. CD151 could be a valuable prognosis biomarker or a potential therapeutic target of solid tumors.
Collapse
Affiliation(s)
- Ping Zeng
- Department of Radiotherapy and Oncology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan 215300, Jiangsu Province, China
| | - Yin-Hua Wang
- Department of Radiotherapy and Oncology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan 215300, Jiangsu Province, China.,Department of Oncology, Changshu Second People's Hospital Affiliated to Yangzhou University, Changshu 215500, Jiangsu Province, China
| | - Meng Si
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Jin-Hua Gu
- Department of Radiotherapy and Oncology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan 215300, Jiangsu Province, China
| | - Ping Li
- Department of Radiotherapy and Oncology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan 215300, Jiangsu Province, China
| | - Pei-Hua Lu
- Department of Medical Oncology, Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, Jiangsu Province, China
| | - Min-Bin Chen
- Department of Radiotherapy and Oncology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan 215300, Jiangsu Province, China
| |
Collapse
|
31
|
Chen L, Yuan D, Zhao R, Li H, Zhu J. Suppression of TSPAN1 by RNA Interference Inhibits Proliferation and Invasion of Colon Cancer Cells in Vitro. TUMORI JOURNAL 2018; 96:744-50. [DOI: 10.1177/030089161009600517] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aims and background To investigate effect of TSPAN1 downregulation by RNA interference (RNAi) on proliferation and invasion of human colon cancer cells in vitro. Methods and study design RNAi was performed using the vector (pU6H1-GFP)-based small-interfering RNA (siRNA) plasmid gene silencing system to specifically knock down TSPAN1 expression in a colon cancer cell line, HCT-8. The expression of TSPAN1 mRNA was detected by reverse-transcription polymerase chain reaction. TSPAN1 protein expression was observed using Western blots and immunofluorescent microscopy. Cell proliferation and cell cycle assay were measured using methyl thiazolyl tetrazolium (MTT) and flow cytometry, respectively. The invasive ability of HCT-8 cells was examined using a duel culture chamber separated by polycarbonate membranes coated with Matrigel (8.0-μm pore size). Results After transfection with the TSPAN1 siRNA plasmid, TSPAN1 mRNA and protein expression was significantly decreased. The decrease in mRNA and protein was associated with a significant decrease in TSPAN1 fluorescent staining and a decrease in cell proliferation due to cell cycle arrest in the G1/G0 phase. A significant decrease in the number of invading HCT-8 cells was associated with these changes. Conclusion RNAi-mediated downregulation of TSPAN1 expression significantly inhibits the proliferation and invasion of colon cancer cells in vitro. This finding suggests that TSPAN1 plays an important role in colon cancer progression, and RNAi targeting of TSPAN1 may be a potential therapeutic strategy for the treatment of colon cancer. Free full text available at www.tumorionline.it
Collapse
Affiliation(s)
- Li Chen
- Department of Pathological Anatomy, Medical School of Nantong University, Nantong
| | - Daiyue Yuan
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong
| | - Ren Zhao
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Hui Li
- Department of Pathological Anatomy, Medical School of Nantong University, Nantong
| | - Jianwei Zhu
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong
| |
Collapse
|
32
|
PIK3C2A mRNA functions as a miR-124 sponge to facilitate CD151 expression and enhance malignancy of hepatocellular carcinoma cells. Oncotarget 2017; 7:43376-43389. [PMID: 27270320 PMCID: PMC5190030 DOI: 10.18632/oncotarget.9716] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 05/09/2016] [Indexed: 01/17/2023] Open
Abstract
Competing endogenous RNAs (ceRNAs) are RNA transcripts that can crosstalk with each other by competing for shared microRNAs (miRNAs) through miRNA response elements (MREs). Involved in ceRNA networks, the RNA transcripts may be in a balance, disruption of which could lead to tumorigenesis. Here we reveal a ceRNA interaction between PIK3C2A and CD151 mRNAs in hepatocellular carcinoma (HCC) cells. PIK3C2A is a candidate ceRNA of CD151 because mRNA 3' untranslated regions (3'UTRs) of these two genes contain miR-124 binding sites. miR-124 is downregulated, while PIK3C2A and CD151 are upregulated in HCC cells compared with normal hepatocytes. Direct and negative regulation of PIK3C2A and CD151 by miR-124 was confirmed in HCC cells. miR-124 and the two potential ceRNAs are all recruited to the RNA-induced silencing complex (RISC). In HCC cell lines QGY- 7703 and SMMC-7721, and normal hepatic cell line HL-7702, miR-124 plays a tumor suppressor role by targeting PIK3C2A and CD151. The MREs within PIK3C2A 3'UTR can independently stimulate CD151 expression level by acting as miR-124 decoys. PIK3C2A MREs enhance HCC cell malignancy by absorbing endogenous miR-124 and activating CD151 in HCC cells. We conclude that PIK3C2A 3'UTR functions as a trans activator to stimulate CD151 by competing for miR-124 binding in HCC cells. The collaboration of PIK3C2A and CD151 through ceRNA mechanism may be implicated in HCC initiation and development.
Collapse
|
33
|
Molecular interactions shaping the tetraspanin web. Biochem Soc Trans 2017; 45:741-750. [PMID: 28620035 DOI: 10.1042/bst20160284] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/14/2017] [Accepted: 03/15/2017] [Indexed: 12/31/2022]
Abstract
To facilitate the myriad of different (signaling) processes that take place at the plasma membrane, cells depend on a high degree of membrane protein organization. Important mediators of this organization are tetraspanin proteins. Tetraspanins interact laterally among themselves and with partner proteins to control the spatial organization of membrane proteins in large networks called the tetraspanin web. The molecular interactions underlying the formation of the tetraspanin web were hitherto mainly described based on their resistance to different detergents, a classification which does not necessarily correlate with functionality in the living cell. To look at these interactions from a more physiological point of view, this review discusses tetraspanin interactions based on their function in the tetraspanin web: (1) intramolecular interactions supporting tetraspanin structure, (2) tetraspanin-tetraspanin interactions supporting web formation, (3) tetraspanin-partner interactions adding functional partners to the web and (4) cytosolic tetraspanin interactions regulating intracellular signaling. The recent publication of the first full-length tetraspanin crystal structure sheds new light on both the intra- and intermolecular tetraspanin interactions that shape the tetraspanin web. Furthermore, recent molecular dynamic modeling studies indicate that the binding strength between tetraspanins and between tetraspanins and their partners is the complex sum of both promiscuous and specific interactions. A deeper insight into this complex mixture of interactions is essential to our fundamental understanding of the tetraspanin web and its dynamics which constitute a basic building block of the cell surface.
Collapse
|
34
|
Wadkin JCR, Patten DA, Kamarajah SK, Shepherd EL, Novitskaya V, Berditchevski F, Adams DH, Weston CJ, Shetty S. CD151 supports VCAM-1-mediated lymphocyte adhesion to liver endothelium and is upregulated in chronic liver disease and hepatocellular carcinoma. Am J Physiol Gastrointest Liver Physiol 2017; 313:G138-G149. [PMID: 28473332 PMCID: PMC5582880 DOI: 10.1152/ajpgi.00411.2016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 05/02/2017] [Accepted: 05/03/2017] [Indexed: 01/31/2023]
Abstract
CD151, a member of the tetraspanin family of receptors, is a lateral organizer and modulator of activity of several families of transmembrane proteins. It has been implicated in the development and progression of several cancers, but its role in chronic inflammatory disease is less well understood. Here we show that CD151 is upregulated by distinct microenvironmental signals in a range of chronic inflammatory liver diseases and in primary liver cancer, in which it supports lymphocyte recruitment. CD151 was highly expressed in endothelial cells of the hepatic sinusoids and neovessels developing in fibrotic septa and tumor margins. Primary cultures of human hepatic sinusoidal endothelial cells (HSECs) expressed CD151 at the cell membrane and in intracellular vesicles. CD151 was upregulated by VEGF and HepG2 conditioned media but not by proinflammatory cytokines. Confocal microscopy confirmed that CD151 colocalized with the endothelial adhesion molecule/immunoglobulin superfamily member, VCAM-1. Functional flow-based adhesion assays with primary human lymphocytes and HSECs demonstrated a 40% reduction of lymphocyte adhesion with CD151 blockade. Inhibition of lymphocyte adhesion was similar between VCAM-1 blockade and a combination of CD151/VCAM-1 blockade, suggesting a collaborative role between the two receptors. These studies demonstrate that CD151 is upregulated within the liver during chronic inflammation, where it supports lymphocyte recruitment via liver endothelium. We propose that CD151 regulates the activity of VCAM-1 during lymphocyte recruitment to the human liver and could be a novel anti-inflammatory target in chronic liver disease and hepatocellular cancer prevention.NEW & NOTEWORTHY Chronic hepatitis is characterized by lymphocyte accumulation in liver tissue, which drives fibrosis and carcinogenesis. Here, we demonstrate for the first time that the tetraspanin CD151 supports lymphocyte adhesion to liver endothelium. We show that CD151 is upregulated in chronic liver disease and hepatocellular carcinoma (HCC) and is regulated on endothelium by tissue remodeling and procarcinogenic factors. These regulatory and functional studies identify CD151 as a potential therapeutic target to treat liver fibrosis and HCC.
Collapse
Affiliation(s)
- James C. R. Wadkin
- 1Birmingham Liver Biomedical Research Unit Institute of Immunology and Immunotherapy, National Institute for Health Research, University of Birmingham, Birmingham, United Kingdom;
| | - Daniel A. Patten
- 1Birmingham Liver Biomedical Research Unit Institute of Immunology and Immunotherapy, National Institute for Health Research, University of Birmingham, Birmingham, United Kingdom;
| | - Sivesh K. Kamarajah
- 1Birmingham Liver Biomedical Research Unit Institute of Immunology and Immunotherapy, National Institute for Health Research, University of Birmingham, Birmingham, United Kingdom;
| | - Emma L. Shepherd
- 1Birmingham Liver Biomedical Research Unit Institute of Immunology and Immunotherapy, National Institute for Health Research, University of Birmingham, Birmingham, United Kingdom;
| | - Vera Novitskaya
- 2CRUK Institute for Cancer Studies, Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom; and
| | - Fedor Berditchevski
- 2CRUK Institute for Cancer Studies, Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom; and
| | - David H. Adams
- 1Birmingham Liver Biomedical Research Unit Institute of Immunology and Immunotherapy, National Institute for Health Research, University of Birmingham, Birmingham, United Kingdom; ,3Liver Unit, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, United Kingdom
| | - Chris J. Weston
- 1Birmingham Liver Biomedical Research Unit Institute of Immunology and Immunotherapy, National Institute for Health Research, University of Birmingham, Birmingham, United Kingdom;
| | - Shishir Shetty
- Birmingham Liver Biomedical Research Unit Institute of Immunology and Immunotherapy, National Institute for Health Research, University of Birmingham, Birmingham, United Kingdom; .,Liver Unit, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, United Kingdom
| |
Collapse
|
35
|
Reducing isoform complexity of human tetraspanins by optimized expression in Dictyostelium discoideum enables high-throughput functional read-out. Protein Expr Purif 2017; 135:8-15. [DOI: 10.1016/j.pep.2017.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 04/18/2017] [Accepted: 04/20/2017] [Indexed: 11/21/2022]
|
36
|
Tetraspanins in infections by human cytomegalo- and papillomaviruses. Biochem Soc Trans 2017; 45:489-497. [PMID: 28408489 DOI: 10.1042/bst20160295] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/15/2017] [Accepted: 02/16/2017] [Indexed: 12/30/2022]
Abstract
Members of the tetraspanin family have been identified as essential cellular membrane proteins in infectious diseases by nearly all types of pathogens. The present review highlights recently published data on the role of tetraspanin CD151, CD81, and CD63 and their interaction partners in host cell entry by human cytomegalo- and human papillomaviruses. Moreover, we discuss a model for tetraspanin assembly into trafficking platforms at the plasma membrane. These platforms might persist during intracellular viral trafficking.
Collapse
|
37
|
Joint features and complementarities of Tspan8 and CD151 revealed in knockdown and knockout models. Biochem Soc Trans 2017; 45:437-447. [PMID: 28408484 DOI: 10.1042/bst20160298] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/04/2017] [Accepted: 02/13/2017] [Indexed: 02/06/2023]
Abstract
Tetraspanins are highly conserved 4-transmembrane proteins which form molecular clusters with a large variety of transmembrane and cytosolic proteins. By these associations tetraspanins are engaged in a multitude of biological processes. Furthermore, tetraspanin complexes are located in specialized microdomains, called tetraspanin-enriched microdomains (TEMs). TEMs provide a signaling platform and are poised for invagination and vesicle formation. These vesicles can be released as exosomes (Exo) and are important in cell contact-independent intercellular communication. Here, we summarize emphasizing knockdown and knockout models' pathophysiological joint and selective activities of CD151 and Tspan8, and discuss the TEM-related engagement of CD151 and Tspan8 in Exo activities.
Collapse
|
38
|
Termini CM, Gillette JM. Tetraspanins Function as Regulators of Cellular Signaling. Front Cell Dev Biol 2017; 5:34. [PMID: 28428953 PMCID: PMC5382171 DOI: 10.3389/fcell.2017.00034] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 03/22/2017] [Indexed: 01/10/2023] Open
Abstract
Tetraspanins are molecular scaffolds that distribute proteins into highly organized microdomains consisting of adhesion, signaling, and adaptor proteins. Many reports have identified interactions between tetraspanins and signaling molecules, finding unique downstream cellular consequences. In this review, we will explore these interactions as well as the specific cellular responses to signal activation, focusing on tetraspanin regulation of adhesion-mediated (integrins/FAK), receptor-mediated (EGFR, TNF-α, c-Met, c-Kit), and intracellular signaling (PKC, PI4K, β-catenin). Additionally, we will summarize our current understanding for how tetraspanin post-translational modifications (palmitoylation, N-linked glycosylation, and ubiquitination) can regulate signal propagation. Many of the studies outlined in this review suggest that tetraspanins offer a potential therapeutic target to modulate aberrant signal transduction pathways that directly impact a host of cellular behaviors and disease states.
Collapse
Affiliation(s)
- Christina M Termini
- Department of Pathology, University of New Mexico Health Sciences CenterAlbuquerque, NM, USA
| | - Jennifer M Gillette
- Department of Pathology, University of New Mexico Health Sciences CenterAlbuquerque, NM, USA
| |
Collapse
|
39
|
Kim HJ, Kwon S, Nam SH, Jung JW, Kang M, Ryu J, Kim JE, Cheong JG, Cho CY, Kim S, Song DG, Kim YN, Kim TY, Jung MK, Lee KM, Pack CG, Lee JW. Dynamic and coordinated single-molecular interactions at TM4SF5-enriched microdomains guide invasive behaviors in 2- and 3-dimensional environments. FASEB J 2017; 31:1461-1481. [PMID: 28073834 DOI: 10.1096/fj.201600944rr] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 12/12/2016] [Indexed: 11/11/2022]
Abstract
Membrane proteins sense extracellular cues and transduce intracellular signaling to coordinate directionality and speed during cellular migration. They are often localized to specific regions, as with lipid rafts or tetraspanin-enriched microdomains; however, the dynamic interactions of tetraspanins with diverse receptors within tetraspanin-enriched microdomains on cellular surfaces remain largely unexplored. Here, we investigated effects of tetraspan(in) TM4SF5 (transmembrane 4 L6 family member 5)-enriched microdomains (T5ERMs) on the directionality of cell migration. Physical association of TM4SF5 with epidermal growth factor receptor (EGFR) and integrin α5 was visualized by live fluorescence cross-correlation spectroscopy and higher-resolution microscopy at the leading edge of migratory cells, presumably forming TM4SF5-enriched microdomains. Whereas TM4SF5 and EGFR colocalized at the migrating leading region more than at the rear, TM4SF5 and integrin α5 colocalized evenly throughout cells. Cholesterol depletion and disruption in TM4SF5 post-translational modifications, including N-glycosylation and palmitoylation, altered TM4SF5 interactions and cellular localization, which led to less cellular migration speed and directionality in 2- or 3-dimensional conditions. TM4SF5 controlled directional cell migration and invasion, and importantly, these TM4SF5 functions were dependent on cholesterol, TM4SF5 post-translational modifications, and EGFR and integrin α5 activity. Altogether, we showed that TM4SF5 dynamically interacted with EGFR and integrin α5 in migratory cells to control directionality and invasion.-Kim, H.-J., Kwon, S., Nam, S. H., Jung, J. W., Kang, M., Ryu, J., Kim, J. E., Cheong, J.-G., Cho, C. Y., Kim, S., Song, D.-G., Kim, Y.-N., Kim, T. Y., Jung, M.-K., Lee, K.-M., Pack, C.-G., Lee, J. W. Dynamic and coordinated single-molecular interactions at TM4SF5-enriched microdomains guide invasive behaviors in 2- and 3-dimensional environments.
Collapse
Affiliation(s)
- Hye-Jin Kim
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Sojung Kwon
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Seo Hee Nam
- Interdisciplinary Program in Genetic Engineering, Seoul National University, Seoul, South Korea
| | - Jae Woo Jung
- Interdisciplinary Program in Genetic Engineering, Seoul National University, Seoul, South Korea
| | - Minkyung Kang
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Jihye Ryu
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Ji Eon Kim
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Jin-Gyu Cheong
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Chang Yun Cho
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Somi Kim
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Dae-Geun Song
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | | | - Tai Young Kim
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Min-Kyo Jung
- Department of Convergence Medicine, University of Ulsan College of Medicine and Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Kyung-Min Lee
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Chan-Gi Pack
- Department of Convergence Medicine, University of Ulsan College of Medicine and Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Jung Weon Lee
- Department of Pharmacy, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea; .,Interdisciplinary Program in Genetic Engineering, Seoul National University, Seoul, South Korea
| |
Collapse
|
40
|
Reimann R, Kost B, Dettmer J. TETRASPANINs in Plants. FRONTIERS IN PLANT SCIENCE 2017; 8:545. [PMID: 28458676 PMCID: PMC5394113 DOI: 10.3389/fpls.2017.00545] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/27/2017] [Indexed: 05/20/2023]
Abstract
Tetraspanins are small transmembrane proteins that laterally associate with each other and cluster with numerous partner proteins as well as lipids. These interactions result in the formation of a distinct class of membrane domains, the tetraspanin-enriched microdomains (TEMs), which influence numerous cellular processes such as cell adhesion and fusion, intracellular membrane trafficking, signaling, morphogenesis, motility as well as interaction with pathogens and cancer development. The majority of information available about tetraspanins is based on studies using animal models or cell lines, but tetraspanins are also present in fungi and plants. Recent studies indicate that tetraspanins have important functions in plant development, reproduction and stress responses. Here we provide a brief summary of the current state of tetraspanin research in plants.
Collapse
|
41
|
Seipold L, Saftig P. The Emerging Role of Tetraspanins in the Proteolytic Processing of the Amyloid Precursor Protein. Front Mol Neurosci 2016; 9:149. [PMID: 28066176 PMCID: PMC5174118 DOI: 10.3389/fnmol.2016.00149] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 12/05/2016] [Indexed: 12/20/2022] Open
Abstract
Tetraspanins are a family of ubiquitously expressed and conserved proteins, which are characterized by four transmembrane domains and the formation of a short and a large extracellular loop (LEL). Through interaction with other tetraspanins and transmembrane proteins such as growth factors, receptors and integrins, tetraspanins build a wide ranging and membrane spanning protein network. Such tetraspanin-enriched microdomains (TEMs) contribute to the formation and stability of functional signaling complexes involved in cell activation, adhesion, motility, differentiation, and malignancy. There is increasing evidence showing that the tetraspanins also regulate the proteolysis of the amyloid precursor protein (APP) by physically interacting with the APP secretases. CD9, CD63, CD81, Tspan12, Tspan15 are among the tetraspanins involved in the intracellular transport and in the stabilization of the gamma secretase complex or ADAM10 as the major APP alpha secretase. They also directly regulate, most likely in concert with other tetraspanins, the proteolytic function of these membrane embedded enzymes. Despite the knowledge about the interaction of tetraspanins with the secretases not much is known about their physiological role, their importance in Alzheimer's Disease and their exact mode of action. This review aims to summarize the current knowledge and open questions regarding the biology of tetraspanins and the understanding how these proteins interact with APP processing pathways. Ultimately, it will be of interest if tetraspanins are suitable targets for future therapeutical approaches.
Collapse
Affiliation(s)
- Lisa Seipold
- Institut für Biochemie, Christian-Albrechts-Universität zu Kiel (CAU) Kiel, Germany
| | - Paul Saftig
- Institut für Biochemie, Christian-Albrechts-Universität zu Kiel (CAU) Kiel, Germany
| |
Collapse
|
42
|
Albers T, Maniak M, Beitz E, von Bülow J. The C Isoform of Dictyostelium Tetraspanins Localizes to the Contractile Vacuole and Contributes to Resistance against Osmotic Stress. PLoS One 2016; 11:e0162065. [PMID: 27597994 PMCID: PMC5012570 DOI: 10.1371/journal.pone.0162065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 08/16/2016] [Indexed: 12/20/2022] Open
Abstract
Tetraspanins (Tsps) are membrane proteins that are widely expressed in eukaryotic organisms. Only recently, Tsps have started to acquire relevance as potential new drug targets as they contribute, via protein-protein interactions, to numerous pathophysiological processes including infectious diseases and cancer. However, due to a high number of isoforms and functional redundancy, knowledge on specific functions of most Tsps is still scarce. We set out to characterize five previously annotated Tsps, TspA-E, from Dictyostelium discoideum, a model for studying proteins that have human orthologues. Using reverse transcriptase PCRs, we found mRNAs for TspA-E in the multicellular slug stage, whereas vegetative cells expressed only TspA, TspC and, to a lesser extent, TspD. We raised antibodies against TspA, TspC and TspD and detected endogenous TspA, as well as heterologously expressed TspA and TspC by Western blot. N-deglycosylation assays and mutational analyses showed glycosylation of TspA and TspC in vivo. GFP-tagged Tsps co-localized with the proton pump on the contractile vacuole network. Deletion strains of TspC and TspD exibited unaltered growth, adhesion, random motility and development. Yet, tspC− cells showed a defect in coping with hypo-osmotic stress, due to accumulation of contractile vacuoles, but heterologous expression of TspC rescued their phenotype. In conclusion, our data fill a gap in Dictyostelium research and open up the possibility that Tsps in contractile vacuoles of e.g. Trypanosoma may one day constitute a valuable drug target for treating sleeping sickness, one of the most threatening tropical diseases.
Collapse
Affiliation(s)
- Tineke Albers
- Department of Medicinal and Pharmaceutical Chemistry, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Markus Maniak
- Department of Cell Biology, University of Kassel, Kassel, Germany
| | - Eric Beitz
- Department of Medicinal and Pharmaceutical Chemistry, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Julia von Bülow
- Department of Medicinal and Pharmaceutical Chemistry, Christian-Albrechts-University of Kiel, Kiel, Germany
- * E-mail:
| |
Collapse
|
43
|
Termini CM, Lidke KA, Gillette JM. Tetraspanin CD82 Regulates the Spatiotemporal Dynamics of PKCα in Acute Myeloid Leukemia. Sci Rep 2016; 6:29859. [PMID: 27417454 PMCID: PMC4945921 DOI: 10.1038/srep29859] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/22/2016] [Indexed: 02/08/2023] Open
Abstract
Patients with acute myeloid leukemia (AML) have increased myeloid cells within their bone marrow that exhibit aberrant signaling. Therefore, therapeutic targets that modulate disrupted signaling cascades are of significant interest. In this study, we demonstrate that the tetraspanin membrane scaffold, CD82, regulates protein kinase c alpha (PKCα)-mediated signaling critical for AML progression. Utilizing a palmitoylation mutant form of CD82 with disrupted membrane organization, we find that the CD82 scaffold controls PKCα expression and activation. Combining single molecule and ensemble imaging measurements, we determine that CD82 stabilizes PKCα activation at the membrane and regulates the size of PKCα membrane clusters. Further evaluation of downstream effector signaling identified robust and sustained activation of ERK1/2 upon CD82 overexpression that results in enhanced AML colony formation. Together, these data propose a mechanism where CD82 membrane organization regulates sustained PKCα signaling that results in an aggressive leukemia phenotype. These observations suggest that the CD82 scaffold may be a potential therapeutic target for attenuating aberrant signal transduction in AML.
Collapse
Affiliation(s)
- Christina M Termini
- Department of Pathology, University of New Mexico Health Sciences Center, University of New Mexico, MSC 08-4640, Albuquerque, NM 87131, USA
| | - Keith A Lidke
- Department of Physics and Astronomy, University of New Mexico, MSC 07-4220, Albuquerque, NM 87131, USA
| | - Jennifer M Gillette
- Department of Pathology, University of New Mexico Health Sciences Center, University of New Mexico, MSC 08-4640, Albuquerque, NM 87131, USA
| |
Collapse
|
44
|
Heiler S, Wang Z, Zöller M. Pancreatic cancer stem cell markers and exosomes - the incentive push. World J Gastroenterol 2016; 22:5971-6007. [PMID: 27468191 PMCID: PMC4948278 DOI: 10.3748/wjg.v22.i26.5971] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 06/03/2016] [Accepted: 06/28/2016] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer (PaCa) has the highest death rate and incidence is increasing. Poor prognosis is due to late diagnosis and early metastatic spread, which is ascribed to a minor population of so called cancer stem cells (CSC) within the mass of the primary tumor. CSC are defined by biological features, which they share with adult stem cells like longevity, rare cell division, the capacity for self renewal, differentiation, drug resistance and the requirement for a niche. CSC can also be identified by sets of markers, which for pancreatic CSC (Pa-CSC) include CD44v6, c-Met, Tspan8, alpha6beta4, CXCR4, CD133, EpCAM and claudin7. The functional relevance of CSC markers is still disputed. We hypothesize that Pa-CSC markers play a decisive role in tumor progression. This is fostered by the location in glycolipid-enriched membrane domains, which function as signaling platform and support connectivity of the individual Pa-CSC markers. Outside-in signaling supports apoptosis resistance, stem cell gene expression and tumor suppressor gene repression as well as miRNA transcription and silencing. Pa-CSC markers also contribute to motility and invasiveness. By ligand binding host cells are triggered towards creating a milieu supporting Pa-CSC maintenance. Furthermore, CSC markers contribute to the generation, loading and delivery of exosomes, whereby CSC gain the capacity for a cell-cell contact independent crosstalk with the host and neighboring non-CSC. This allows Pa-CSC exosomes (TEX) to reprogram neighboring non-CSC towards epithelial mesenchymal transition and to stimulate host cells towards preparing a niche for metastasizing tumor cells. Finally, TEX communicate with the matrix to support tumor cell motility, invasion and homing. We will discuss the possibility that CSC markers are the initial trigger for these processes and what is the special contribution of CSC-TEX.
Collapse
|
45
|
Li PY, Lv J, Qi WW, Zhao SF, Sun LB, Liu N, Sheng J, Qiu WS. Tspan9 inhibits the proliferation, migration and invasion of human gastric cancer SGC7901 cells via the ERK1/2 pathway. Oncol Rep 2016; 36:448-54. [PMID: 27177197 DOI: 10.3892/or.2016.4805] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 02/17/2016] [Indexed: 11/05/2022] Open
Abstract
Tetraspanins are a heterogeneous group of 4-transmembrane proteins that recruit other cell surface receptors and signaling proteins into tetraspanin-enriched microdomains (TEMs). TEMs of various types are involved in the regulation of cell growth, migration and invasion of several tumor cell types, both as suppressors or promotors. Tetraspanin 9 (Tspan9, NET-5, PP1057), a member of the transmembrane 4 superfamily (TM4SF) of tetraspanins, reportedly regulates platelet function in concert with other platelet tetraspanins and their associated proteins. Our previous study demonstrated that Tspan9 is also expressed in gastric cancer (GC), but the role of Tspan9 in GC has not been well characterized. In this study, we investigated the influence of Tspan9 on proliferation, migration and invasion of human gastric cancer SGC7901 cells using CCK-8 assay, cell cycle analysis, wound-healing assay and Transwell assay. Western blot analysis and ELISA assay were also performed to identify the potential mechanisms involved. The proliferation, migration and invasion of human gastric cancer SGC7901 cells were significantly inhibited by overexpression of Tspan9. In addition, Tspan9 downregulated the phosphorylation of extracellular signal-regulated kinases 1 and 2 (ERK1/2) and the secretion levels of proteins related to tumor metastasis, such as matrix metalloproteinase-9 (MMP-9) and urokinase plasminogen activator (uPA). Our study indicated that Tspan9 inhibited SGC7901 cell proliferation, migration and invasion through the ERK1/2 pathway.
Collapse
Affiliation(s)
- Pai-Yun Li
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Jing Lv
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Wei-Wei Qi
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Shu-Fen Zhao
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Li-Bin Sun
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Ning Liu
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Jie Sheng
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Wen-Sheng Qiu
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| |
Collapse
|
46
|
Rocha-Perugini V, Sánchez-Madrid F, Martínez Del Hoyo G. Function and Dynamics of Tetraspanins during Antigen Recognition and Immunological Synapse Formation. Front Immunol 2016; 6:653. [PMID: 26793193 PMCID: PMC4707441 DOI: 10.3389/fimmu.2015.00653] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 12/18/2015] [Indexed: 12/31/2022] Open
Abstract
Tetraspanin-enriched microdomains (TEMs) are specialized membrane platforms driven by protein–protein interactions that integrate membrane receptors and adhesion molecules. Tetraspanins participate in antigen recognition and presentation by antigen-presenting cells (APCs) through the organization of pattern-recognition receptors (PRRs) and their downstream-induced signaling, as well as the regulation of MHC-II–peptide trafficking. T lymphocyte activation is triggered upon specific recognition of antigens present on the APC surface during immunological synapse (IS) formation. This dynamic process is characterized by a defined spatial organization involving the compartmentalization of receptors and adhesion molecules in specialized membrane domains that are connected to the underlying cytoskeleton and signaling molecules. Tetraspanins contribute to the spatial organization and maturation of the IS by controlling receptor clustering and local accumulation of adhesion receptors and integrins, their downstream signaling, and linkage to the actin cytoskeleton. This review offers a perspective on the important role of TEMs in the regulation of antigen recognition and presentation and in the dynamics of IS architectural organization.
Collapse
Affiliation(s)
- Vera Rocha-Perugini
- Servicio de Inmunología, Instituto de Investigación Sanitaria La Princesa, Hospital de la Princesa, Madrid, Spain; Vascular Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Francisco Sánchez-Madrid
- Servicio de Inmunología, Instituto de Investigación Sanitaria La Princesa, Hospital de la Princesa, Madrid, Spain; Vascular Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Gloria Martínez Del Hoyo
- Vascular Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) , Madrid , Spain
| |
Collapse
|
47
|
Jouannet S, Saint-Pol J, Fernandez L, Nguyen V, Charrin S, Boucheix C, Brou C, Milhiet PE, Rubinstein E. TspanC8 tetraspanins differentially regulate the cleavage of ADAM10 substrates, Notch activation and ADAM10 membrane compartmentalization. Cell Mol Life Sci 2015; 73:1895-915. [PMID: 26686862 PMCID: PMC4819958 DOI: 10.1007/s00018-015-2111-z] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 11/03/2015] [Accepted: 12/03/2015] [Indexed: 01/08/2023]
Abstract
The metalloprotease ADAM10 mediates the shedding of the ectodomain of various cell membrane proteins, including APP, the precursor of the amyloid peptide Aβ, and Notch receptors following ligand binding. ADAM10 associates with the members of an evolutionary conserved subgroup of tetraspanins, referred to as TspanC8, which regulate its exit from the endoplasmic reticulum. Here we show that 4 of these TspanC8 (Tspan5, Tspan14, Tspan15 and Tspan33) which positively regulate ADAM10 surface expression levels differentially impact ADAM10-dependent Notch activation and the cleavage of several ADAM10 substrates, including APP, N-cadherin and CD44. Sucrose gradient fractionation, single molecule tracking and quantitative mass-spectrometry analysis of the repertoire of molecules co-immunoprecipitated with Tspan5, Tspan15 and ADAM10 show that these two tetraspanins differentially regulate ADAM10 membrane compartmentalization. These data represent a unique example where several tetraspanins differentially regulate the function of a common partner protein through a distinct membrane compartmentalization.
Collapse
Affiliation(s)
- Stéphanie Jouannet
- Inserm, U935, 94807, Villejuif, France.,Université Paris-Sud, Institut André Lwoff, 94807, Villejuif, France
| | - Julien Saint-Pol
- Inserm, U935, 94807, Villejuif, France.,Université Paris-Sud, Institut André Lwoff, 94807, Villejuif, France
| | - Laurent Fernandez
- Inserm, U1054, 34090, Montpellier, France.,Université de Montpellier, CNRS, UMR5048, Centre de Biochimie Structurale, Montpellier, France
| | - Viet Nguyen
- Université Paris-Sud, Institut André Lwoff, 94807, Villejuif, France
| | - Stéphanie Charrin
- Inserm, U935, 94807, Villejuif, France.,Université Paris-Sud, Institut André Lwoff, 94807, Villejuif, France
| | - Claude Boucheix
- Inserm, U935, 94807, Villejuif, France.,Université Paris-Sud, Institut André Lwoff, 94807, Villejuif, France
| | - Christel Brou
- Institut Pasteur, Laboratoire "Signalisation et Pathogenèse", 75015, Paris, France
| | - Pierre-Emmanuel Milhiet
- Inserm, U1054, 34090, Montpellier, France.,Université de Montpellier, CNRS, UMR5048, Centre de Biochimie Structurale, Montpellier, France
| | - Eric Rubinstein
- Inserm, U935, 94807, Villejuif, France. .,Université Paris-Sud, Institut André Lwoff, 94807, Villejuif, France.
| |
Collapse
|
48
|
Marjon KD, Termini CM, Karlen KL, Saito-Reis C, Soria CE, Lidke KA, Gillette JM. Tetraspanin CD82 regulates bone marrow homing of acute myeloid leukemia by modulating the molecular organization of N-cadherin. Oncogene 2015; 35:4132-40. [PMID: 26592446 PMCID: PMC4877306 DOI: 10.1038/onc.2015.449] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 09/18/2015] [Accepted: 10/22/2015] [Indexed: 11/16/2022]
Abstract
Communication between acute myeloid leukemia (AML) and the bone marrow microenvironment is known to control disease progression. Therefore, regulation of AML cell trafficking and adhesion to the bone marrow is of significant interest. In this study, we demonstrate that differential expression of the membrane scaffold CD82 modulates the bone marrow homing of AML cells. By combining mutational analysis and super-resolution imaging, we identify membrane protein clustering by CD82 as a regulator of AML cell adhesion and bone marrow homing. Cluster analysis of super-resolution data indicates that N-linked glycosylation and palmitoylation of CD82 are both critical modifications that control the microdomain organization of CD82 as well as the nanoscale clustering of associated adhesion protein, N-cadherin. We demonstrate that inhibition of CD82 glycosylation increases the molecular packing of N-cadherin and promotes the bone marrow homing of AML cells. In contrast, we find that inhibition of CD82 palmitoylation disrupts the formation and organization of N-cadherin clusters and significantly diminishes bone marrow trafficking of AML. Taken together, these data establish a mechanism where the membrane organization of CD82, through specific post-translational modifications, regulates N-cadherin clustering and membrane density, which impacts the in vivo trafficking of AML cells. As such, these observations provide an alternative model for targeting AML where modulation of protein organization within the membrane may be an effective treatment therapy to disrupt the bone marrow homing potential of AML cells.
Collapse
Affiliation(s)
- K D Marjon
- Department of Pathology, University of New Mexico Health Sciences Center, University of New Mexico, Albuquerque, NM, USA
| | - C M Termini
- Department of Pathology, University of New Mexico Health Sciences Center, University of New Mexico, Albuquerque, NM, USA
| | - K L Karlen
- Department of Pathology, University of New Mexico Health Sciences Center, University of New Mexico, Albuquerque, NM, USA
| | - C Saito-Reis
- Department of Pathology, University of New Mexico Health Sciences Center, University of New Mexico, Albuquerque, NM, USA
| | - C E Soria
- Department of Pathology, University of New Mexico Health Sciences Center, University of New Mexico, Albuquerque, NM, USA
| | - K A Lidke
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, USA
| | - J M Gillette
- Department of Pathology, University of New Mexico Health Sciences Center, University of New Mexico, Albuquerque, NM, USA
| |
Collapse
|
49
|
Homsi Y, Schloetel JG, Scheffer KD, Schmidt TH, Destainville N, Florin L, Lang T. The extracellular δ-domain is essential for the formation of CD81 tetraspanin webs. Biophys J 2015; 107:100-13. [PMID: 24988345 DOI: 10.1016/j.bpj.2014.05.028] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 05/14/2014] [Accepted: 05/20/2014] [Indexed: 12/15/2022] Open
Abstract
CD81 is a ubiquitously expressed member of the tetraspanin family. It forms large molecular platforms, so-called tetraspanin webs that play physiological roles in a variety of cellular functions and are involved in viral and parasite infections. We have investigated which part of the CD81 molecule is required for the formation of domains in the cell membranes of T-cells and hepatocytes. Surprisingly, we find that large CD81 platforms assemble via the short extracellular δ-domain, independent from a strong primary partner binding and from weak interactions mediated by palmitoylation. The δ-domain is also essential for the platforms to function during viral entry. We propose that, instead of stable binary interactions, CD81 interactions via the small δ-domain, possibly involving a dimerization step, play the key role in organizing CD81 into large tetraspanin webs and controlling its function.
Collapse
Affiliation(s)
- Yahya Homsi
- Department of Membrane Biochemistry, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Jan-Gero Schloetel
- Department of Membrane Biochemistry, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Konstanze D Scheffer
- Department of Medical Microbiology and Hygiene, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Thomas H Schmidt
- Department of Membrane Biochemistry, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Nicolas Destainville
- Université Toulouse 3-Paul Sabatier, UPS, Laboratoire de Physique Théorique (IRSAMC), Toulouse, France
| | - Luise Florin
- Department of Medical Microbiology and Hygiene, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Thorsten Lang
- Department of Membrane Biochemistry, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany.
| |
Collapse
|
50
|
Yamada M, Sekiguchi K. Molecular Basis of Laminin-Integrin Interactions. CURRENT TOPICS IN MEMBRANES 2015; 76:197-229. [PMID: 26610915 DOI: 10.1016/bs.ctm.2015.07.002] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Laminins are composed of three polypeptide chains, designated as α, β, and γ. The C-terminal region of laminin heterotrimers, containing coiled-coil regions, short tails, and laminin globular (LG) domains, is necessary and sufficient for binding to integrins, which are the major laminin receptor class. Laminin recognition by integrins critically requires the α chain LG domains and a glutamic acid residue of the γ chain at the third position from the C-terminus. Furthermore, the C-terminal region of the β chain contains a short amino acid sequence that modulates laminin affinity for integrins. Thus, all three of the laminin chains act cooperatively to facilitate integrin binding. Mammals possess 5 α (α1-5), 3 β (β1-3), and 3 γ (γ1-3) chains, combinations of which give rise to 16 distinct laminin isoforms. Each isoform is expressed in a tissue-specific and developmental stage-specific manner, exerting its functions through binding of integrins. In this review, we detail the current knowledge surrounding the molecular basis and physiological relevance of specific interactions between laminins and integrins, and describe the mechanisms underlying laminin action through integrins.
Collapse
Affiliation(s)
- Masashi Yamada
- Laboratory of Extracellular Matrix Biochemistry, Institute for Protein Research, Osaka University, Suita, Osaka, Japan
| | - Kiyotoshi Sekiguchi
- Laboratory of Extracellular Matrix Biochemistry, Institute for Protein Research, Osaka University, Suita, Osaka, Japan
| |
Collapse
|