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Dekky B, Azar F, Bonnier D, Monseur C, Kalebić C, Arpigny E, Colige A, Legagneux V, Théret N. ADAMTS12 is a stromal modulator in chronic liver disease. FASEB J 2023; 37:e23237. [PMID: 37819632 DOI: 10.1096/fj.202200692rrrr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 09/13/2023] [Accepted: 09/21/2023] [Indexed: 10/13/2023]
Abstract
Adamalysins, a family of metalloproteinases containing a disintegrin and metalloproteinases (ADAMs) and ADAM with thrombospondin motifs (ADAMTSs), belong to the matrisome and play important roles in various biological and pathological processes, such as development, immunity and cancer. Using a liver cancer dataset from the International Cancer Genome Consortium, we developed an extensive in silico screening that identified a cluster of adamalysins co-expressed in livers from patients with hepatocellular carcinoma (HCC). Within this cluster, ADAMTS12 expression was highly associated with recurrence risk and poorly differentiated HCC signatures. We showed that ADAMTS12 was expressed in the stromal cells of the tumor and adjacent fibrotic tissues of HCC patients, and more specifically in activated stellate cells. Using a mouse model of carbon tetrachloride-induced liver injury, we showed that Adamts12 was strongly and transiently expressed after a 24 h acute treatment, and that fibrosis was exacerbated in Adamts12-null mice submitted to carbon tetrachloride-induced chronic liver injury. Using the HSC-derived LX-2 cell line, we showed that silencing of ADAMTS12 resulted in profound changes of the gene expression program. In particular, genes previously reported to be induced upon HSC activation, such as PAI-1, were mostly down-regulated following ADAMTS12 knock-down. The phenotype of these cells was changed to a less differentiated state, showing an altered actin network and decreased nuclear spreading. These phenotypic changes, together with the down-regulation of PAI-1, were offset by TGF-β treatment. The present study thus identifies ADAMTS12 as a modulator of HSC differentiation, and a new player in chronic liver disease.
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Affiliation(s)
- Bassil Dekky
- University of Rennes, INSERM, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, Rennes, France
| | - Fida Azar
- University of Rennes, INSERM, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, Rennes, France
| | - Dominique Bonnier
- University of Rennes, INSERM, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, Rennes, France
| | - Christine Monseur
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, Liege, Belgium
| | - Chiara Kalebić
- University of Rennes, INSERM, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, Rennes, France
| | - Esther Arpigny
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, Liege, Belgium
| | - Alain Colige
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liege, Liege, Belgium
| | - Vincent Legagneux
- University of Rennes, INSERM, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, Rennes, France
| | - Nathalie Théret
- University of Rennes, INSERM, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, Rennes, France
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2
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Li Z, Guo Y, Ndandala CB, Chen H, Huang C, Zhao G, Huang H, Li G, Chen H. Analysis of circRNA and miRNA expression profiles in IGF3-induced ovarian maturation in spotted scat ( Scatophagus argus). Front Endocrinol (Lausanne) 2022; 13:998207. [PMID: 36506051 PMCID: PMC9732426 DOI: 10.3389/fendo.2022.998207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 11/03/2022] [Indexed: 11/26/2022] Open
Abstract
Insulin-like growth factor 3 (IGF3) induces ovarian maturation in teleosts; however, research on its molecular regulatory mechanism remains deficient. Circular RNAs (circRNAs) and microRNAs (miRNAs) are involved in various biological processes, including reproduction. In this study, circRNAs and miRNAs involved in IGF3-induced ovarian maturation were evaluated in spotted scat (Scatophagus argus). In ovarian tissues, we identified 176 differentially expressed (DE) circRNAs and 52 DE miRNAs between IGF3 treatment and control groups. Gene Ontology (GO) enrichment analyses showed that host genes of DE circRNAs and target genes of DE miRNAs were enriched for various processes with a high degree of overlap, including cellular process, reproduction, reproductive process, biological adhesion, growth, extracellular region, cell junction, catalytic activity, and transcription factor activity. Enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways included cell adhesion molecules, ECM-receptor interaction, regulation of actin cytoskeleton, focal adhesion, cell cycle, Hedgehog signaling pathway, phosphatidylinositol signaling system, PI3K-Akt signaling pathway, Apelin signaling pathway, Notch signaling pathway, insulin signaling pathway, and Rap1 signaling pathway. A circRNA-miRNA-mRNA regulatory network was constructed, including DE genes involved in reproduction (e.g., oocyte maturation, oocyte meiosis, and ECM remodeling), such as ccnd2, hecw2, dnm2, irs1, adam12, and cdh13. According to the regulatory network and tissue distribution, we identified one circRNA (Lachesis_group5:6245955|6270787) and three miRNAs (novel_miR_622, novel_miR_980, and novel_miR_64) that may exert regulatory effects in IGF3-induced ovarian maturation in S. argus. Taken together, this study provides a novel insight into the molecular mechanisms by which IGF3 functions in ovaries and highlights the effects of circRNAs and miRNAs in reproduction in S. argus.
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Affiliation(s)
- Zhiyuan Li
- Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, China
| | - Yuwen Guo
- Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, China
| | - Charles Brighton Ndandala
- Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, China
| | - Huadong Chen
- Guangdong Havwii Agriculture Group Co., LTD, Zhanjiang, China
| | | | | | - Hai Huang
- Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources of Ministry of Education, Hainan Key Laboratory for Conservation and Utilization of Tropical Marine Fishery Resources, Yazhou Bay Innovation Institute, Hainan Tropical Ocean University, Sanya, China
- *Correspondence: Huapu Chen, ; Hai Huang,
| | - Guangli Li
- Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Huapu Chen
- Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Fisheries College, Guangdong Ocean University, Zhanjiang, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, China
- Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources of Ministry of Education, Hainan Key Laboratory for Conservation and Utilization of Tropical Marine Fishery Resources, Yazhou Bay Innovation Institute, Hainan Tropical Ocean University, Sanya, China
- *Correspondence: Huapu Chen, ; Hai Huang,
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3
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Hegewisch-Solloa E, Seo S, Mundy-Bosse BL, Mishra A, Waldman EH, Maurrasse S, Grunstein E, Connors TJ, Freud AG, Mace EM. Differential Integrin Adhesome Expression Defines Human NK Cell Residency and Developmental Stage. THE JOURNAL OF IMMUNOLOGY 2021; 207:950-965. [PMID: 34282002 DOI: 10.4049/jimmunol.2100162] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 06/03/2021] [Indexed: 11/19/2022]
Abstract
NK cells are innate immune cells that reside within tissue and circulate in peripheral blood. They interact with a variety of microenvironments, yet how NK cells engage with these varied microenvironments is not well documented. The adhesome represents a molecular network of defined and predicted integrin-mediated signaling interactions. In this study, we define the integrin adhesome expression profile of NK cells from human tonsil, peripheral blood, and those derived from human hematopoietic precursors through stromal cell coculture systems. We report that the site of cell isolation and NK cell developmental stage dictate differences in expression of adhesome associated genes and proteins. Furthermore, we define differences in cortical actin content associated with differential expression of actin regulating proteins, suggesting that differences in adhesome expression are associated with differences in cortical actin homeostasis. These data provide understanding of the diversity of human NK cell populations and how they engage with their microenvironment.
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Affiliation(s)
- Everardo Hegewisch-Solloa
- Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
| | - Seungmae Seo
- Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
| | - Bethany L Mundy-Bosse
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH.,Comprehensive Cancer Center, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH
| | - Anjali Mishra
- Comprehensive Cancer Center, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH.,Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, OH
| | - Erik H Waldman
- Department of Otolaryngology-Head and Neck Surgery, Columbia University Medical Center, New York, NY
| | - Sarah Maurrasse
- Department of Otolaryngology-Head and Neck Surgery, Columbia University Medical Center, New York, NY
| | - Eli Grunstein
- Department of Otolaryngology-Head and Neck Surgery, Columbia University Medical Center, New York, NY
| | - Thomas J Connors
- Division of Pediatric Critical Care and Hospital Medicine, Department of Pediatrics, Columbia University Irving Medical Center, New York, NY; and
| | - Aharon G Freud
- Comprehensive Cancer Center, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH.,Department of Pathology, The Ohio State University, Columbus, OH
| | - Emily M Mace
- Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY;
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Abstract
Alternative splicing of precursor mRNA is a key mediator of gene expression regulation leading to greater diversity of the proteome in complex organisms. Systematic sequencing of the human genome and transcriptome has led to our understanding of how alternative splicing of critical genes leads to multiple pathological conditions such as cancer. For many years, proteases were known only for their roles as proteolytic enzymes, acting to regulate/process proteins associated with diverse cellular functions. However, the differential expression and altered function of various protease isoforms, such as (i) anti-apoptotic activities, (ii) mediating intercellular adhesion, and (iii) modifying the extracellular matrix, are evidence of their specific contribution towards shaping the tumor microenvironment. Revealing the alternative splicing of protease genes and characterization of their protein products/isoforms with distinct and opposing functions creates a platform to understand how protease isoforms contribute to specific cancer hallmarks. Here, in this review, we address cancer-specific isoforms produced by the alternative splicing of proteases and their distinctive roles in the tumor microenvironment.
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Affiliation(s)
- Chamikara Liyanage
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
- Australian Prostate Cancer Research Centre-Queensland (APCRC-Q), Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Achala Fernando
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
- Australian Prostate Cancer Research Centre-Queensland (APCRC-Q), Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Jyotsna Batra
- School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.
- Australian Prostate Cancer Research Centre-Queensland (APCRC-Q), Translational Research Institute, Queensland University of Technology, Brisbane, Australia.
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Regulation of Fibrotic Processes in the Liver by ADAM Proteases. Cells 2019; 8:cells8101226. [PMID: 31601007 PMCID: PMC6830092 DOI: 10.3390/cells8101226] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/02/2019] [Accepted: 10/04/2019] [Indexed: 12/18/2022] Open
Abstract
Fibrosis in the liver is mainly associated with the activation of hepatic stellate cells (HSCs). Both activation and clearance of HSCs can be mediated by ligand–receptor interactions. Members of the a disintegrin and metalloprotease (ADAM) family are involved in the proteolytic release of membrane-bound ligands and receptor ectodomains and the remodelling of the extracellular matrix. ADAM proteases are therefore major regulators of intercellular signalling pathways. In the present review we discuss how ADAM proteases modulate pro- and anti-fibrotic processes and how ADAM proteases might be harnessed therapeutically in the future.
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Knight C, James S, Kuntin D, Fox J, Newling K, Hollings S, Pennock R, Genever P. Epidermal growth factor can signal via β-catenin to control proliferation of mesenchymal stem cells independently of canonical Wnt signalling. Cell Signal 2018; 53:256-268. [PMID: 30287279 PMCID: PMC6293317 DOI: 10.1016/j.cellsig.2018.09.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 09/26/2018] [Accepted: 09/28/2018] [Indexed: 12/27/2022]
Abstract
Bone marrow mesenchymal stem/stromal cells (MSCs) maintain bone homeostasis and repair through the ability to expand in response to mitotic stimuli and differentiate into skeletal lineages. Signalling mechanisms that enable precise control of MSC function remain unclear. Here we report that by initially examining differences in signalling pathway expression profiles of individual MSC clones, we identified a previously unrecognised signalling mechanism regulated by epidermal growth factor (EGF) in primary human MSCs. We demonstrate that EGF is able to activate β-catenin, a key component of the canonical Wnt signalling pathway. EGF is able to induce nuclear translocation of β-catenin in human MSCs but does not drive expression of Wnt target genes or T cell factor (TCF) activity in MSC reporter cell lines. Using an efficient Design of Experiments (DoE) statistical analysis, with different combinations and concentrations of EGF and Wnt ligands, we were able to confirm that EGF does not influence the Wnt/β-catenin pathway in MSCs. We show that the effects of EGF on MSCs are temporally regulated to initiate early “classical” EGF signalling mechanisms (e.g via mitogen activated protein kinase) with delayed activation of β-catenin. By RNA-sequencing, we identified gene sets that were exclusively regulated by the EGF/β-catenin pathway, which were distinct from classical EGF-regulated genes. However, subsets of classical EGF gene targets were significantly influenced by EGF/β-catenin activation. These signalling pathways cooperate to enable EGF-mediated proliferation of MSCs by alleviating the suppression of cell cycle pathways induced by classical EGF signalling. Epidermal growth factor (EGF) controls mesenchymal stem cell (MSC) proliferation. EGF signals through β-catenin in MSCs but not in related fibroblastic cells. Classical EGF and EGF/β-catenin cooperatively regulate distinct gene sets in MSCs. EGF/β-catenin enables MSC proliferation by alleviating cell cycle suppression.
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Affiliation(s)
- Charlotte Knight
- Department of Biology, University of York, York YO10 5DD, United Kingdom
| | - Sally James
- Department of Biology, University of York, York YO10 5DD, United Kingdom
| | - David Kuntin
- Department of Biology, University of York, York YO10 5DD, United Kingdom
| | - James Fox
- Department of Biology, University of York, York YO10 5DD, United Kingdom
| | - Katherine Newling
- Department of Biology, University of York, York YO10 5DD, United Kingdom
| | - Sam Hollings
- Department of Biology, University of York, York YO10 5DD, United Kingdom
| | - Rebecca Pennock
- Department of Biology, University of York, York YO10 5DD, United Kingdom
| | - Paul Genever
- Department of Biology, University of York, York YO10 5DD, United Kingdom.
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Ricard-Blum S, Baffet G, Théret N. Molecular and tissue alterations of collagens in fibrosis. Matrix Biol 2018; 68-69:122-149. [DOI: 10.1016/j.matbio.2018.02.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/02/2018] [Accepted: 02/02/2018] [Indexed: 02/07/2023]
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Proteomic screening identifies the zonula occludens protein ZO-1 as a new partner for ADAM12 in invadopodia-like structures. Oncotarget 2018; 9:21366-21382. [PMID: 29765546 PMCID: PMC5940405 DOI: 10.18632/oncotarget.25106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 03/23/2018] [Indexed: 12/24/2022] Open
Abstract
The epithelial mesenchymal transition (EMT) is a key process for cancer cell invasion and migration. This complex program whereby epithelial tumor cells loose polarity and acquire mesenchymal phenotype is driven by the regulation of cell-cell adhesion and cell-substrate interactions. We recently described the association of ADAM12 with EMT and we now use immunoprecipitation and proteomic approaches to identify interacting partners for ADAM12 during EMT. We identify twenty proteins that are involved in molecular mechanisms associated with adhesion/invasion processes. Integrative network analyses point out the zonula occludens protein ZO-1, as a new potential partner for ADAM12. In silico screening demonstrates that ZO-1 and ADAM12 are coexpressed in breast cancer cell lines sharing EMT signature. We validate the interaction between ZO-1 and ADAM12 in invasive breast cancer cell lines and show that ZO-1 and ADAM12 co-localize in actin- and cortactin-rich structures. Silencing either ADAM12 or ZO-1 inhibits gelatin degradation demonstrating that both proteins are required for matrix degradation. We further show that matrix metalloprotease 14, known to mediate degradation of collagen in invadopodia-like structures interacts with ZO-1. Depletion of PKCε that regulates the recruitment of ADAM12 and ZO-1 to cell membranes induces a decrease in ADAM12 and ZO-1 at invadopodia-like structures and degradation activity. Together our data provide evidence for a new interaction between ADAM12, a mesenchymal marker induced during TGF-β-dependent EMT and ZO-1, a scaffolding protein expressed in tight junctions of epithelial cells, both proteins being redistributed at the invadopodia-like structures of mesenchymal invasive cells to promote PKCε-dependent matrix degradation.
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Yin H, Zhong F, Ouyang Y, Wang Q, Ding L, He S. Upregulation of ADAM12 contributes to accelerated cell proliferation and cell adhesion-mediated drug resistance (CAM-DR) in Non-Hodgkin's Lymphoma. ACTA ACUST UNITED AC 2017; 22:527-535. [PMID: 28395594 DOI: 10.1080/10245332.2017.1312205] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE ADAM12 is a member of a disintegrin and metalloproteinase family and has been reported to participate in the development of variety of tumors. However, the role of ADAM12 in Non-Hodgkin Lymphoma (NHL) has not been investigated. The present study was undertaken to determine the expression and biologic function of ADAM12 in human NHL. METHODS First, we constructed a model of cell adhesion in NHL, the mRNA, and protein level of ADAM12 in suspension and the adhesion model was analyzed by RT-PCR and western blot. Then, flow cytometry assay and western blot were used to investigate the mechanism of ADAM12 in the proliferation of NHL cells. In vitro, after using siRNA interfering ADAM12 expression, we performed adhesion assay and cell viability assay to determine the effect of ADAM12 on adhesive rate and drug sensitivity. RESULTS ADAM12 was lowly expressed in suspended cells and highly expressed in adherent NHL cells. In addition, ADAM12 was positively correlated with the proliferation and apoptosis of NHL cells by regulating the expression of p-AKT and p-GSK-3β. Furthermore, ADAM12 promoted cell adhesion-mediated drug resistance (CAM-DR) in DLBCL via AKT signaling pathway. CONCLUSION AND DISCUSSION Our data support a role for ADAM12 in NHL cell proliferation, adhesion, and drug resistance, and it may pave the way for a novel therapeutic approach for CAM-DR in NHL.
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Affiliation(s)
- Haibing Yin
- a Department of Pathology , Affiliated Cancer Hospital of Nantong University , Nantong , PR China
| | - Fei Zhong
- b Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University , Nantong , PR China
| | - Yu Ouyang
- b Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University , Nantong , PR China
| | - Qiru Wang
- b Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University , Nantong , PR China
| | - Linlin Ding
- b Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University , Nantong , PR China
| | - Song He
- a Department of Pathology , Affiliated Cancer Hospital of Nantong University , Nantong , PR China
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10
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Quantitative proteomics identifies myoferlin as a novel regulator of A Disintegrin and Metalloproteinase 12 in HeLa cells. J Proteomics 2016; 148:94-104. [PMID: 27432471 DOI: 10.1016/j.jprot.2016.07.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/27/2016] [Accepted: 07/13/2016] [Indexed: 01/03/2023]
Abstract
UNLABELLED A Disintegrin and Metalloproteinase 12 (ADAM12) is expressed significantly higher in multiple tumors than in normal tissues and has been used as a prognostic marker for the evaluation of cancer progression. Although several ADAM12 substrates have been identified biochemically and its proteolytic function has been explored, the upstream regulators and the interacting proteins have not been systematically investigated. Here, we use immunoprecipitation and mass spectrometry (MS)-based quantitative proteomic approaches to identify 28 interacting partners for the long form of ADAM12 (ADAM12-L) in HeLa cells. Proteins that regulate cell proliferation, invasion, and epithelial to mesenchymal transition are among the identified ADAM12-interacting proteins. Further biochemical experiments discover that the protein level and the stability of ADAM12 are upregulated by one of its interacting proteins, myoferlin. In addition, myoferlin also increases the proteolytic activity of ADAM12, leading to the reduction of an ADAM12 substrate, E-cadherin. This result implies that ADAM12 and its interacting proteins might converge to certain signaling pathways in the regulation of cancer cell progression. The information obtained here might be useful in the development of new strategies for modulating cell proliferation and invasion involved in the regulation between ADAM12 and its interacting partners. MS data are available via ProteomeXchange with identifier PXD003560. BIOLOGICAL SIGNIFICANCE Regulation of the proliferation and invasion of cancer cells is important in cancer treatment. ADAM12 has been found to play important roles in regulating these processes and identification of its interacting partners will improve our understanding of its biological functions and provide basis for functional modulation. Through mass spectrometry-based quantitative proteomic approaches, we identify the interacting partners for ADAM12 in a human cancer cell line and find many proteins that are involved in the proliferation and invasion of cancer cells. A novel regulator, myoferlin, of ADAM12 is discovered and this protein increases ADAM12 expression level, stability, and its enzymatic activity, leading to the reduction of its substrate, E-cadherin, which plays important roles in the regulation of cell adhesion and tumor metastasis. This result provides a connection for two highly expressed proteins in cancer cells and may shed light on the regulation of their biological functions in cancer progression.
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11
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Chen QY, Jiao DM, Yan L, Wu YQ, Hu HZ, Song J, Yan J, Wu LJ, Xu LQ, Shi JG. Comprehensive gene and microRNA expression profiling reveals miR-206 inhibits MET in lung cancer metastasis. MOLECULAR BIOSYSTEMS 2016; 11:2290-302. [PMID: 26075299 DOI: 10.1039/c4mb00734d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
MiRNAs associated with the metastasis of lung cancer remain largely unexplored. In this study, gene and miRNA expression profiling were performed to analyze the global expression of mRNAs and miRNAs in human high- and low-metastatic lung cancer cell strains. By developing an integrated bioinformatics analysis, six miRNAs (miR-424-3p, miR-450b-5p, miR-335-5p, miR-34a-5p, miR-302b-3p and miR-206) showed higher target gene degrees in the miRNA-gene network and might be potential metastasis-related miRNAs. Using the qRT-PCR method, the six miRNAs were further confirmed to show a significant expression difference between human lung cancer and normal tissue samples. Since miR-206 showed lower expression both in lung cancer tissues and cell lines, it was used as an example for further functional verification. The wound healing assay and transwell invasion assay showed that miR-206 mimics significantly inhibited the cell migration and invasion of the high-metastatic lung cancer 95D cell strain. One of its predicted targets in our miRNA-gene network, MET, was also obviously decreased at the protein level when miR-206 was overexpressed. Instead, miR-206 inhibitors increased MET protein expression, cell migration and invasion of the low-metastatic lung cancer 95C cell strain. Meanwhile, the luciferase assay showed that MET was a direct target of miR-206. Furthermore, MET gene silence showed a similar anti-migration and anti-invasion effect with miR-206 mimics in 95D cells and could partially attenuate the migration- and invasion-promoting effect of miR-206 inhibitors in 95C cells, suggesting that miR-206 targets MET in lung cancer metastasis. Finally, we also demonstrated that miR-206 can significantly inhibit lung cancer proliferation and metastasis in mouse models. In conclusion, our study provided a miRNA-gene regulatory network in lung cancer metastasis and further demonstrated the roles of miR-206 and MET in this process, which enhances the understanding of the regulatory mechanism in lung cancer metastasis.
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Affiliation(s)
- Qing-yong Chen
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang 310013, P. R. China.
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12
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Laurent MA, Bonnier D, Théret N, Tufféry P, Moroy G. In silico characterization of the interaction between LSKL peptide, a LAP-TGF-beta derived peptide, and ADAMTS1. Comput Biol Chem 2016; 61:155-61. [PMID: 26878129 DOI: 10.1016/j.compbiolchem.2016.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 01/28/2016] [Accepted: 01/28/2016] [Indexed: 10/22/2022]
Abstract
Metalloproteases involved in extracellular matrix remodeling play a pivotal role in cell response by regulating the bioavailability of cytokines and growth factors. Recently, the disintegrin and metalloprotease, ADAMTS1 has been demonstrated to be able to activate the transforming growth factor TGF-β, a major factor in fibrosis and cancer. The KTFR sequence from ADAMTS1 is responsible for the interaction with the LSKL peptide from the latent form of TGF-β, leading to its activation. While the atomic details of the interaction site can be the basis of the rational design of efficient inhibitory molecules, the binding mode of interaction is totally unknown. In this study, we show that recombinant fragments of human ADAMTS1 containing KTFR sequence keep the ability to bind the latent form of TGF-β. The recombinant fragment with the best affinity is modeled to investigate the binding mode of LSKL peptide with ADAMTS1 at the atomic level. Using a combined approach with molecular docking and multiple independent molecular dynamics (MD) simulations, we provide the binding mode of LSKL peptide with ADAMTS1. The MD simulations starting with the two lowest energy model predicted by molecular docking shows stable interactions characterized by 3 salt bridges (K3-NH3(+) with E626-COO(-); L4-COO(-) with K619-NH3(+); L1-NH3(+) with E624-COO(-)) and 2 hydrogen bonds (S2-OH with E623-COO(-); L4-NH with E623-COO(-)). The knowledge of this interaction mechanism paves the way to the design of more potent and more specific inhibitors against the inappropriate activation of TGF-β by ADAMTS1 in liver diseases.
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Affiliation(s)
- Marie-Amandine Laurent
- Université Paris Diderot, Sorbonne Paris Cité, Molécules Thérapeutiques in silico (MTi), Inserm UMR-S 973, 35 rue Hélène Brion, 75013 Paris, France
| | - Dominique Bonnier
- INSERM U1085, Institut de Recherche en Santé, Environnement et Travail (IRSET), Université de Rennes 1, 2 avenue Pr Léon Bernard, Rennes, France
| | - Nathalie Théret
- INSERM U1085, Institut de Recherche en Santé, Environnement et Travail (IRSET), Université de Rennes 1, 2 avenue Pr Léon Bernard, Rennes, France
| | - Pierre Tufféry
- Université Paris Diderot, Sorbonne Paris Cité, Molécules Thérapeutiques in silico (MTi), Inserm UMR-S 973, 35 rue Hélène Brion, 75013 Paris, France
| | - Gautier Moroy
- Université Paris Diderot, Sorbonne Paris Cité, Molécules Thérapeutiques in silico (MTi), Inserm UMR-S 973, 35 rue Hélène Brion, 75013 Paris, France.
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The Disintegrin and Metalloprotease ADAM12 Is Associated with TGF-β-Induced Epithelial to Mesenchymal Transition. PLoS One 2015; 10:e0139179. [PMID: 26407179 PMCID: PMC4583281 DOI: 10.1371/journal.pone.0139179] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 09/08/2015] [Indexed: 12/21/2022] Open
Abstract
The increased expression of the Disintegrin and Metalloprotease ADAM12 has been associated with human cancers, however its role remain unclear. We have previously reported that ADAM12 expression is induced by the transforming growth factor, TGF-β and promotes TGF-β-dependent signaling through interaction with the type II receptor of TGF-β. Here we explore the implication of ADAM12 in TGF-β-mediated epithelial to mesenchymal transition (EMT), a key process in cancer progression. We show that ADAM12 expression is correlated with EMT markers in human breast cancer cell lines and biopsies. Using a non-malignant breast epithelial cell line (MCF10A), we demonstrate that TGF-β-induced EMT increases expression of the membrane-anchored ADAM12L long form. Importantly, ADAM12L overexpression in MCF10A is sufficient to induce loss of cell-cell contact, reorganization of actin cytoskeleton, up-regulation of EMT markers and chemoresistance. These effects are independent of the proteolytic activity but require the cytoplasmic tail and are specific of ADAM12L since overexpression of ADAM12S failed to induce similar changes. We further demonstrate that ADAM12L-dependent EMT is associated with increased phosphorylation of Smad3, Akt and ERK proteins. Conversely, inhibition of TGF-β receptors or ERK activities reverses ADAM12L-induced mesenchymal phenotype. Together our data demonstrate that ADAM12L is associated with EMT and contributes to TGF-β-dependent EMT by favoring both Smad-dependent and Smad-independent pathways.
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14
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Leyme A, Marivin A, Perez-Gutierrez L, Nguyen LT, Garcia-Marcos M. Integrins activate trimeric G proteins via the nonreceptor protein GIV/Girdin. J Cell Biol 2015; 210:1165-84. [PMID: 26391662 PMCID: PMC4586755 DOI: 10.1083/jcb.201506041] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 08/20/2015] [Indexed: 01/04/2023] Open
Abstract
Signal transduction via integrins and G protein-coupled receptors is critical to control cell behavior. These two receptor classes have been traditionally believed to trigger distinct and independent signaling cascades in response to extracellular cues. Here, we report a novel mechanism of integrin signaling that requires activation of the trimeric G protein Gαi by the nonreceptor guanine nucleotide exchange factor (GEF) GIV (also known as Girdin), a metastasis-associated protein. We demonstrate that GIV enhances integrin-dependent cell responses upon extracellular matrix stimulation and makes tumor cells more invasive. These responses include remodeling of the actin cytoskeleton and PI3K-dependent signaling, resulting in enhanced haptotaxis and invasion. We show that both GIV and its substrate Gαi3 are recruited to active integrin complexes and that tumor cells engineered to express GEF-deficient GIV fail to transduce integrin signals into proinvasive responses via a Gβγ-PI3K axis. Our discoveries delineate a novel mechanism by which integrin signaling is rewired during metastasis to result in increased tumor invasiveness.
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Affiliation(s)
- Anthony Leyme
- Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118
| | - Arthur Marivin
- Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118
| | | | - Lien T Nguyen
- Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118
| | - Mikel Garcia-Marcos
- Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118
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15
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Cheon DJ, Li AJ, Beach JA, Walts AE, Tran H, Lester J, Karlan BY, Orsulic S. ADAM12 is a prognostic factor associated with an aggressive molecular subtype of high-grade serous ovarian carcinoma. Carcinogenesis 2015; 36:739-47. [PMID: 25926422 DOI: 10.1093/carcin/bgv059] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 04/26/2015] [Indexed: 01/24/2023] Open
Abstract
ADAM metallopeptidase domain 12 (ADAM12) is a promising biomarker because of its low expression in normal tissues and high expression in a variety of human cancers. However, ADAM12 levels in ovarian cancer have not been well characterized. We previously identified ADAM12 as one of the signature genes associated with poor survival in high-grade serous ovarian carcinoma (HGSOC). Here, we sought to determine if high levels of the ADAM12 protein and/or messenger RNA (mRNA) are associated with clinical variables in HGSOC. We show that high protein levels of ADAM12 in banked preoperative sera are associated with shorter progression-free and overall survival. Tumor levels of ADAM12 mRNA were also associated with shorter progression-free and overall survival as well as with lymphatic and vascular invasion, and residual tumor volume following cytoreductive surgery. The majority of genes co-expressed with ADAM12 in HGSOC were transforming growth factor (TGF)β signaling targets that function in collagen remodeling and cell-matrix adhesion. In tumor sections, the ADAM12 protein and mRNA were expressed in epithelial cancer cells and surrounding stromal cells. In vitro data showed that ADAM12 mRNA levels can be increased by TGFβ signaling and direct contact between epithelial and stromal cells. High tumor levels of ADAM12 mRNA were characteristic of the mesenchymal/desmoplastic molecular subtype of HGSOC, which is known to have the poorest prognosis. Thus, ADAM12 may be a useful biomarker of aggressive ovarian cancer for which standard treatment is not effective.
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Affiliation(s)
- Dong-Joo Cheon
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Andrew J Li
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA and
| | - Jessica A Beach
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA, Gradute Program in Biomedical Science and Translational Medicine and
| | - Ann E Walts
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Hang Tran
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Jenny Lester
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Beth Y Karlan
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA and
| | - Sandra Orsulic
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA, Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA and
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16
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Aghababaei M, Beristain AG. The Elsevier Trophoblast Research Award Lecture: Importance of metzincin proteases in trophoblast biology and placental development: a focus on ADAM12. Placenta 2014; 36 Suppl 1:S11-9. [PMID: 25589360 DOI: 10.1016/j.placenta.2014.12.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 12/04/2014] [Accepted: 12/17/2014] [Indexed: 10/25/2022]
Abstract
Placental development is a highly regulated process requiring signals from both fetal and maternal uterine compartments. Within this complex system, trophoblasts, placental cells of epithelial lineage, form the maternal-fetal interface controlling nutrient, gas and waste exchange. The commitment of progenitor villous cytotrophoblasts to differentiate into diverse trophoblast subsets is a fundamental process in placental development. Differentiation of trophoblasts into invasive stromal- and vascular-remodeling subtypes is essential for uterine arterial remodeling and placental function. Inadequate placentation, characterized by defects in trophoblast differentiation, may underlie the earliest cellular events driving pregnancy disorders such as preeclampsia and fetal growth restriction. Molecularly, invasive trophoblasts acquire characteristics defined by profound alterations in cell-cell and cell-matrix adhesion, cytoskeletal reorganization and production of proteolytic factors. To date, most studies have investigated the importance of the matrix metalloproteinases (MMPs) and their ability to efficiently remodel components of the extracellular matrix (ECM). However, it is now becoming clear that besides MMPs, other related proteases regulate trophoblast invasion via mechanisms other than ECM turnover. In this review, we will summarize the current knowledge on the regulation of trophoblast invasion by members of the metzincin family of metalloproteinases. Specifically, we will discuss the emerging roles that A Disintegrin and Metalloproteinases (ADAMs) play in placental development, with a particular focus on the ADAM subtype, ADAM12.
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Affiliation(s)
- Mahroo Aghababaei
- Department of Obstetrics and Gynecology, The University of British Columbia, Canada; The Child and Family Research Institute, Vancouver, Canada
| | - Alexander G Beristain
- Department of Obstetrics and Gynecology, The University of British Columbia, Canada; The Child and Family Research Institute, Vancouver, Canada.
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17
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Puig-Oliveras A, Ballester M, Corominas J, Revilla M, Estellé J, Fernández AI, Ramayo-Caldas Y, Folch JM. A co-association network analysis of the genetic determination of pig conformation, growth and fatness. PLoS One 2014; 9:e114862. [PMID: 25503799 PMCID: PMC4263716 DOI: 10.1371/journal.pone.0114862] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 11/14/2014] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Several QTLs have been identified for major economically relevant traits in livestock, such as growth and meat quality, revealing the complex genetic architecture of these traits. The use of network approaches considering the interactions of multiple molecules and traits provides useful insights into the molecular underpinnings of complex traits. Here, a network based methodology, named Association Weight Matrix, was applied to study gene interactions and pathways affecting pig conformation, growth and fatness traits. RESULTS The co-association network analysis underpinned three transcription factors, PPARγ, ELF1, and PRDM16 involved in mesoderm tissue differentiation. Fifty-four genes in the network belonged to growth-related ontologies and 46 of them were common with a similar study for growth in cattle supporting our results. The functional analysis uncovered the lipid metabolism and the corticotrophin and gonadotrophin release hormone pathways among the most important pathways influencing these traits. Our results suggest that the genes and pathways here identified are important determining either the total body weight of the animal and the fat content. For instance, a switch in the mesoderm tissue differentiation may determinate the age-related preferred pathways being in the puberty stage those related with the miogenic and osteogenic lineages; on the contrary, in the maturity stage cells may be more prone to the adipocyte fate. Hence, our results demonstrate that an integrative genomic co-association analysis is a powerful approach for identifying new connections and interactions among genes. CONCLUSIONS This work provides insights about pathways and key regulators which may be important determining the animal growth, conformation and body proportions and fatness traits. Molecular information concerning genes and pathways here described may be crucial for the improvement of genetic breeding programs applied to pork meat production.
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Affiliation(s)
- Anna Puig-Oliveras
- Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
- Plant and Animal Genomics, Centre de Recerca en Agrigenòmica (CRAG), 08193, Bellaterra, Spain
| | - Maria Ballester
- Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
- Plant and Animal Genomics, Centre de Recerca en Agrigenòmica (CRAG), 08193, Bellaterra, Spain
| | - Jordi Corominas
- Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
- Plant and Animal Genomics, Centre de Recerca en Agrigenòmica (CRAG), 08193, Bellaterra, Spain
| | - Manuel Revilla
- Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
- Plant and Animal Genomics, Centre de Recerca en Agrigenòmica (CRAG), 08193, Bellaterra, Spain
| | - Jordi Estellé
- Génétique Animale et Biologie Intégrative UMR1313 (GABI), Institut National de la Recherche Agronomique (INRA), 78350, Jouy-en-Josas, France
- Génétique Animale et Biologie Intégrative UMR1313 (GABI), AgroParisTech, 78350, Jouy-en-Josas, France
- Laboratoire de Radiobiologie et Etude du Génome (LREG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), 78350, Jouy-en-Josas, France
| | - Ana I. Fernández
- Departamento de Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - Yuliaxis Ramayo-Caldas
- Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
- Plant and Animal Genomics, Centre de Recerca en Agrigenòmica (CRAG), 08193, Bellaterra, Spain
- Génétique Animale et Biologie Intégrative UMR1313 (GABI), Institut National de la Recherche Agronomique (INRA), 78350, Jouy-en-Josas, France
- Génétique Animale et Biologie Intégrative UMR1313 (GABI), AgroParisTech, 78350, Jouy-en-Josas, France
- Laboratoire de Radiobiologie et Etude du Génome (LREG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), 78350, Jouy-en-Josas, France
| | - Josep M. Folch
- Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
- Plant and Animal Genomics, Centre de Recerca en Agrigenòmica (CRAG), 08193, Bellaterra, Spain
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18
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Vi L, Boo S, Sayedyahossein S, Singh RK, McLean S, Di Guglielmo GM, Dagnino L. Modulation of type II TGF-β receptor degradation by integrin-linked kinase. J Invest Dermatol 2014; 135:885-894. [PMID: 25268583 DOI: 10.1038/jid.2014.427] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 07/28/2014] [Accepted: 09/11/2014] [Indexed: 02/07/2023]
Abstract
Cutaneous responses to injury, infection, and tumor formation involve the activation of resident dermal fibroblasts and subsequent transition to myofibroblasts. The key for induction of myofibroblast differentiation is the activation of transforming growth factor-β (TGF-β) receptors and stimulation of integrins and their associated proteins, including integrin-linked kinase (ILK). Cross-talk processes between TGF-β and ILK are crucial for myofibroblast formation, as ILK-deficient dermal fibroblasts exhibit impaired responses to TGF-β receptor stimulation. We now show that ILK associates with type II TGF-β receptors (TβRII) in ligand- and receptor kinase activity-independent manners. In cells with targeted Ilk gene inactivation, cellular levels of TβRII are decreased, through mechanisms that involve enhanced ubiquitination and proteasomal degradation. Partitioning of TGF-β receptors into membrane has been linked to proteasome-dependent receptor degradation. We found that interfering with membrane raft formation in ILK-deficient cells restored TβRII levels and signaling. These observations support a model whereby ILK functions in fibroblasts to direct TβRII away from degradative pathways during their differentiation into myofibroblasts.
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Affiliation(s)
- Linda Vi
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada; Children's Health Research Institute, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Stellar Boo
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada; Children's Health Research Institute, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada; These authors contributed equally to this work
| | - Samar Sayedyahossein
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada; Children's Health Research Institute, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Randeep K Singh
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada; Children's Health Research Institute, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Sarah McLean
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada
| | - Gianni M Di Guglielmo
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada
| | - Lina Dagnino
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada; Children's Health Research Institute, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada.
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Ernst N, Yay A, Bíró T, Tiede S, Humphries M, Paus R, Kloepper JE. β1 integrin signaling maintains human epithelial progenitor cell survival in situ and controls proliferation, apoptosis and migration of their progeny. PLoS One 2013; 8:e84356. [PMID: 24386370 PMCID: PMC3874009 DOI: 10.1371/journal.pone.0084356] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 11/14/2013] [Indexed: 01/05/2023] Open
Abstract
β1 integrin regulates multiple epithelial cell functions by connecting cells with the extracellular matrix (ECM). While β1 integrin-mediated signaling in murine epithelial stem cells is well-studied, its role in human adult epithelial progenitor cells (ePCs) in situ remains to be defined. Using microdissected, organ-cultured human scalp hair follicles (HFs) as a clinically relevant model for studying human ePCs within their natural topobiological habitat, β1 integrin-mediated signaling in ePC biology was explored by β1 integrin siRNA silencing, specific β1 integrin-binding antibodies and pharmacological inhibition of integrin-linked kinase (ILK), a key component of the integrin-induced signaling cascade. β1 integrin knock down reduced keratin 15 (K15) expression as well as the proliferation of outer root sheath keratinocytes (ORSKs). Embedding of HF epithelium into an ECM rich in β1 integrin ligands that mimic the HF mesenchyme significantly enhanced proliferation and migration of ORSKs, while K15 and CD200 gene and protein expression were inhibited. Employing ECM-embedded β1 integrin-activating or -inhibiting antibodies allowed to identify functionally distinct human ePC subpopulations in different compartments of the HF epithelium. The β1 integrin-inhibitory antibody reduced β1 integrin expression in situ and selectively enhanced proliferation of bulge ePCs, while the β1 integrin-stimulating antibody decreased hair matrix keratinocyte apoptosis and enhanced transferrin receptor (CD71) immunoreactivity, a marker of transit amplifying cells, but did not affect bulge ePC proliferation. That the putative ILK inhibitor QLT0267 significantly reduced ORSK migration and proliferation and induced massive ORSK apoptosis suggests a key role for ILK in mediating the ß1 integrin effects. Taken together, these findings demonstrate that ePCs in human HFs require β1 integrin-mediated signaling for survival, adhesion, and migration, and that different human HF ePC subpopulations differ in their response to β1 integrin signaling. These insights may be exploited for cell-based regenerative medicine strategies that employ human HF-derived ePCs.
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Affiliation(s)
- Nancy Ernst
- Department of Dermatology, University of Luebeck, Luebeck, Germany
| | - Arzu Yay
- Department of Histology and Embryology, University of Erciyes, Kayseri, Turkey
| | - Tamás Bíró
- DE-MTA ‘‘Lendület’’ Cellular Physiology Group, Department of Physiology, University of Debrecen, Debrecen, Hungary
| | - Stephan Tiede
- Institute of Experimental Immunology, Euroimmun AG, Luebeck, Germany
| | - Martin Humphries
- Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Ralf Paus
- Department of Dermatology, University of Luebeck, Luebeck, Germany
- Institute of Inflammation and Repair, University of Manchester, Manchester, United Kingdom
- * E-mail:
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20
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Aghababaei M, Perdu S, Irvine K, Beristain AG. A disintegrin and metalloproteinase 12 (ADAM12) localizes to invasive trophoblast, promotes cell invasion and directs column outgrowth in early placental development. Mol Hum Reprod 2013; 20:235-49. [PMID: 24243624 DOI: 10.1093/molehr/gat084] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
During pregnancy, stromal- and vascular-remodeling trophoblasts serve critical roles in directing placental development acquiring pro-invasive characteristics. The A Disintegrin and Metalloproteinase (ADAM) family of multifunctional proteins direct cellular processes across multiple organ systems via their intrinsic catalytic, cell adhesive and intracellular signaling properties. ADAM12, existing as two distinct splice variants (ADAM12L and ADAM12S), is highly expressed in the human placenta and promotes cell migration and invasion in several tumor cell lines; however, its role in trophoblast biology is unknown. In this study, ADAM12 was localized to anchoring trophoblast columns in first trimester placentas and to highly invasive extracellular matrix-degrading trophoblasts in placental villous explants. The importance of ADAM12 in directing trophoblast invasion was tested using loss-of and gain-of-function strategies, where siRNA-directed knockdown of ADAM12 inhibited trophoblast cell invasion while over-expression promoted migration and invasion in two trophoblastic cell models. In placental villous explant cultures, siRNA-directed loss of ADAM12 significantly dampened trophoblast column outgrowth. Additionally, we provide functional evidence for the ADAM12S variant in promoting trophoblast invasion and column outgrowth through a mechanism requiring its catalytic activity. This is the first study to assign a function for ADAM12 in trophoblast biology, where ADAM12 may play a central role regulating the behavior of invasive trophoblast subsets in early pregnancy. This study also underlines the importance of ADAM12L and ADAM12S in directing cell motility in normal developmental processes outside of cancer, specifically highlighting a potentially important function of ADAM12S in directing early placental development.
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Affiliation(s)
- M Aghababaei
- Department of Obstetrics and Gynecology, The University of British Columbia, Vancouver, Canada
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