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Kupai A, Nakahara H, Voss KM, Hirano MS, Rodriguez A, Lackey DL, Murayama JF, Mathieson CJ, Shan B, Horton EC, Curtis GH, Huang J, Hille MB. Phosphorylation of serine residues S252, S268/S269, and S879 in p120 catenin activates migration of presomitic mesoderm in gastrulating zebrafish embryos. Dev Dyn 2022; 251:1952-1967. [PMID: 35706088 DOI: 10.1002/dvdy.508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 04/15/2022] [Accepted: 05/26/2022] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Cadherin-associated protein p120 catenin regulates cell adhesion and migration in cell cultures and is required for axial elongation in embryos. Its roles in adhesion and cell migration are regulated by phosphorylation. We determined the effects of phosphorylation of six serine and three threonine residues in p120 catenin during zebrafish (Danio rerio) embryogenesis. RESULTS We knocked down endogenous p120 catenin-δ1 with an antisense RNA-splice-site morpholino (Sp-MO) causing defects in axis elongation. These defects were rescued by co-injections of mRNAs for wildtype mouse p120 catenin-δ1-3A or various mutated forms. Several mRNAs containing serine or threonine codons singly or doubly mutated to phosphomimetic glutamic acid rescued, and some nonphosphorylatable mutants did not. CONCLUSIONS We discovered that phosphorylation of serine residue S252 or S879 is required for convergent extension of zebrafish embryos, since rescue occurred only when these residues were mutated to glutamic acid. In addition, the phosphorylation of either S268 or S269 is required, not both, consistent with the presence of only a single one of these residues in two isoforms of zebrafish and Xenopus laevis. In summary, phosphorylation of multiple serine and threonine residues of p120 catenin activates migration of presomitic mesoderm of zebrafish embryos facilitating elongation of the dorsal axis.
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Affiliation(s)
- Ariana Kupai
- Department of Biology, University of Washington, Seattle, Washington, USA.,Van Andel Institute, Grand Rapids, Michigan, USA
| | - Hiroko Nakahara
- Department of Biology, University of Washington, Seattle, Washington, USA
| | - Kathleen M Voss
- Department of Biology, University of Washington, Seattle, Washington, USA.,Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Matthew S Hirano
- Department of Biology, University of Washington, Seattle, Washington, USA.,Department of Electrical and Computer Engineering, University of Washington, Seattle, Washington, USA
| | - Alexis Rodriguez
- Department of Biology, University of Washington, Seattle, Washington, USA.,Apex Systems, Santa Clara, California, USA
| | - Donna L Lackey
- Department of Biology, University of Washington, Seattle, Washington, USA.,PACT Pharma, 2 Corporate Drive, South San Francisco, California, USA
| | - James F Murayama
- Department of Biology, University of Washington, Seattle, Washington, USA.,DDS Private Practice, Mission Viejo, California, USA
| | - Chase J Mathieson
- Department of Biology, University of Washington, Seattle, Washington, USA.,Department of Integrative Biomedical and Diagnostic Science, Oregon Health and Science University, Portland, Oregon, USA
| | - Botao Shan
- Department of Biology, University of Washington, Seattle, Washington, USA.,Tulane University Medical School, New Orleans, Louisiana, USA
| | - Emma C Horton
- Department of Biology, University of Washington, Seattle, Washington, USA.,Developmental & Stem Cell Biology Program, University of California San Francisco, San Francisco, California, USA
| | - Grace H Curtis
- Department of Biology, University of Washington, Seattle, Washington, USA.,School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, Washington, USA
| | - Joyce Huang
- Department of Biology, University of Washington, Seattle, Washington, USA.,Department of Bioengineering, Henry Samueli School of Engineering and Applied Science, University of California at Los Angeles, Los Angeles, California, USA
| | - Merrill B Hille
- Department of Biology, University of Washington, Seattle, Washington, USA
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2
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Sun Z, Cao Y, Hu G, Zhao J, Chen M, Wang S, Ye Z, Chen H, Wang W, Wang Y. Jinfu'an Decoction Inhibits Invasion and Metastasis in Human Lung Cancer Cells (H1650) via p120ctn-Mediated Induction and Kaiso. Med Sci Monit 2018; 24:2878-2886. [PMID: 29735970 PMCID: PMC5965019 DOI: 10.12659/msm.909748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/03/2018] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Previous research showed that Jin-Fu-An decoction has a significant effect on lung cancer. However, it remains unclear whether p120ctn and its transcription factor Kaiso play a role in lung cancer cell proliferation, adhesion, migration, and metastasis. MATERIAL AND METHODS Proliferation inhibition was detected by CCK-8 assay. The migration and invasion were detected using Transwell assay. The location and expression of p120ctn and Kaiso were monitored by immunofluorescence staining. The expression changes of p120ctn, its isoform 1A, its S288 phosphorylation, and Kaiso were measured by Western blot assay. RESULTS The lung cancer cell line H1650 administered Jin-Fu-An decoction had significantly reduced the growth in dose-dependent and time-dependent manners. Migration and metastasis were significantly inhibited by application of Jin-Fu-An decoction in a dose-dependent manner. Additionally, Jin-Fu-An decoction decreased the expressions of p120ctn, its isoform 1A, and its S288 phosphorylation, but the protein level of Kaiso was elevated. CONCLUSIONS Jin-Fu-An decoction inhibits the proliferation, adhesion, migration, and metastasis though down-regulation of p120ctn or its isoform 1A expression, mediating the up-regulation of Kaiso. The underlying mechanism of Jin-Fu-An decoction might involve targeting the lower expression of p120ctn S288 phosphorylation, which suggests that Jin-Fu-An decoction may be a potential therapeutic measure as prevention and control of recurrence and metastasis of lung cancer.
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Affiliation(s)
- Zhe Sun
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Yang Cao
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Guangyun Hu
- Guangdong Second Provincial Traditional Chinese Medicine Hospital, Guangzhou, Guangdong, P.R. China
| | - Jiuda Zhao
- Affiliated Hospital of Qinghai University, Affiliated Cancer Hospital of Qinghai University, Xining, Qinghai, P.R. China
| | - Ming Chen
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Sisi Wang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Zengjie Ye
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Hongyu Chen
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Wenping Wang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Ya’nan Wang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
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3
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Pieters T, Goossens S, Haenebalcke L, Andries V, Stryjewska A, De Rycke R, Lemeire K, Hochepied T, Huylebroeck D, Berx G, Stemmler MP, Wirth D, Haigh JJ, van Hengel J, van Roy F. p120 Catenin-Mediated Stabilization of E-Cadherin Is Essential for Primitive Endoderm Specification. PLoS Genet 2016; 12:e1006243. [PMID: 27556156 PMCID: PMC4996431 DOI: 10.1371/journal.pgen.1006243] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 07/14/2016] [Indexed: 12/15/2022] Open
Abstract
E-cadherin-mediated cell-cell adhesion is critical for naive pluripotency of cultured mouse embryonic stem cells (mESCs). E-cadherin-depleted mESC fail to downregulate their pluripotency program and are unable to initiate lineage commitment. To further explore the roles of cell adhesion molecules during mESC differentiation, we focused on p120 catenin (p120ctn). Although one key function of p120ctn is to stabilize and regulate cadherin-mediated cell-cell adhesion, it has many additional functions, including regulation of transcription and Rho GTPase activity. Here, we investigated the role of mouse p120ctn in early embryogenesis, mESC pluripotency and early fate determination. In contrast to the E-cadherin-null phenotype, p120ctn-null mESCs remained pluripotent, but their in vitro differentiation was incomplete. In particular, they failed to form cystic embryoid bodies and showed defects in primitive endoderm formation. To pinpoint the underlying mechanism, we undertook a structure-function approach. Rescue of p120ctn-null mESCs with different p120ctn wild-type and mutant expression constructs revealed that the long N-terminal domain of p120ctn and its regulatory domain for RhoA were dispensable, whereas its armadillo domain and interaction with E-cadherin were crucial for primitive endoderm formation. We conclude that p120ctn is not only an adaptor and regulator of E-cadherin, but is also indispensable for proper lineage commitment.
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Affiliation(s)
- Tim Pieters
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Steven Goossens
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Lieven Haenebalcke
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
| | - Vanessa Andries
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
| | - Agata Stryjewska
- Department of Development and Regeneration, Laboratory of Molecular Biology (Celgen), University of Leuven, Leuven, Belgium
| | - Riet De Rycke
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
| | - Kelly Lemeire
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
| | - Tino Hochepied
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
| | - Danny Huylebroeck
- Department of Development and Regeneration, Laboratory of Molecular Biology (Celgen), University of Leuven, Leuven, Belgium
- Department of Cell Biology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Geert Berx
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Marc P. Stemmler
- Department of Molecular Embryology, Max-Planck Institute of Immunobiology, Freiburg, Germany
- Department of Experimental Medicine I, Nikolaus-Fiebiger Center for Molecular Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Dagmar Wirth
- Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Jody J. Haigh
- Mammalian Functional Genetics Laboratory, Division of Blood Cancers, Australian Centre for Blood Diseases, Department of Clinical Haematology, Monash University and Alfred Health Alfred Centre, Melbourne, Victoria, Australia
| | - Jolanda van Hengel
- Department of Basic Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
- * E-mail: (JvH); (FvR)
| | - Frans van Roy
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Inflammation Research Center, VIB, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
- * E-mail: (JvH); (FvR)
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4
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Hong JY, Oh IH, McCrea PD. Phosphorylation and isoform use in p120-catenin during development and tumorigenesis. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1863:102-14. [PMID: 26477567 DOI: 10.1016/j.bbamcr.2015.10.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 10/12/2015] [Accepted: 10/13/2015] [Indexed: 12/12/2022]
Abstract
P120-catenin is essential to vertebrate development, modulating cadherin and small-GTPase functions, and growing evidence points also to roles in the nucleus. A complexity in addressing p120-catenin's functions is its many isoforms, including optional splicing events, alternative points of translational initiation, and secondary modifications. In this review, we focus upon how choices in the initiation of protein translation, or the earlier splicing of the RNA transcript, relates to primary sequences that harbor established or putative regulatory phosphorylation sites. While certain p120 phosphorylation events arise via known kinases/phosphatases and have defined outcomes, in most cases the functional consequences are still to be established. In this review, we provide examples of p120-isoforms as they relate to phosphorylation events, and thereby to isoform dependent protein-protein associations and downstream functions. We also provide a view of upstream pathways that determine p120's phosphorylation state, and that have an impact upon development and disease. Because other members of the p120 subfamily undergo similar processing and phosphorylation, as well as related catenins of the plakophilin subfamily, what is learned regarding p120 will by extension have wide relevance in vertebrates.
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Affiliation(s)
- Ji Yeon Hong
- Division of Cardiology, Department of Medicine, Severance Biomedical Science Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
| | - Il-Hoan Oh
- The Catholic University of Korea, Catholic High Performance Cell Therapy Center, 505 Banpo-dong, Seocho-Ku, Seoul 137-701, Republic of Korea
| | - Pierre D McCrea
- Department of Genetics, University of Texas MD Anderson Cancer Center, University of Texas Graduate School of Biomedical Science, Houston, TX 77030, USA.
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5
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Shashikanth N, Petrova YI, Park S, Chekan J, Maiden S, Spano M, Ha T, Gumbiner BM, Leckband DE. Allosteric Regulation of E-Cadherin Adhesion. J Biol Chem 2015; 290:21749-61. [PMID: 26175155 DOI: 10.1074/jbc.m115.657098] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Indexed: 11/06/2022] Open
Abstract
Cadherins are transmembrane adhesion proteins that maintain intercellular cohesion in all tissues, and their rapid regulation is essential for organized tissue remodeling. Despite some evidence that cadherin adhesion might be allosterically regulated, testing of this has been hindered by the difficulty of quantifying altered E-cadherin binding affinity caused by perturbations outside the ectodomain binding site. Here, measured kinetics of cadherin-mediated intercellular adhesion demonstrated quantitatively that treatment with activating, anti-E-cadherin antibodies or the dephosphorylation of a cytoplasmic binding partner, p120(ctn), increased the homophilic binding affinity of E-cadherin. Results obtained with Colo 205 cells, which express inactive E-cadherin and do not aggregate, demonstrated that four treatments, which induced Colo 205 aggregation and p120(ctn) dephosphorylation, triggered quantitatively similar increases in E-cadherin affinity. Several processes can alter cell aggregation, but these results directly demonstrated the allosteric regulation of cell surface E-cadherin by p120(ctn) dephosphorylation.
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Affiliation(s)
| | - Yuliya I Petrova
- the Department of Cell Biology, School of Medicine, University of Virginia, Charlottesville, Virginia 22908, and
| | | | - Jillian Chekan
- Chemical and Biomolecular Engineering, University of Illinois, Urbana-Champaign, Illinois 61801
| | - Stephanie Maiden
- the Department of Cell Biology, School of Medicine, University of Virginia, Charlottesville, Virginia 22908, and
| | - Martha Spano
- the Department of Cell Biology, School of Medicine, University of Virginia, Charlottesville, Virginia 22908, and
| | - Taekjip Ha
- From the Departments of Biochemistry, Physics, and the Howard Hughes Medical Institute, Urbana, Illinois 61801
| | - Barry M Gumbiner
- the Department of Cell Biology, School of Medicine, University of Virginia, Charlottesville, Virginia 22908, and
| | - Deborah E Leckband
- From the Departments of Biochemistry, Chemical and Biomolecular Engineering, University of Illinois, Urbana-Champaign, Illinois 61801,
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6
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p120 catenin is a key effector of a Ras-PKCɛ oncogenic signaling axis. Oncogene 2013; 33:1385-94. [PMID: 23542175 DOI: 10.1038/onc.2013.91] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Revised: 01/24/2013] [Accepted: 02/04/2013] [Indexed: 12/18/2022]
Abstract
Within the family of protein kinase C (PKC) molecules, the novel isoform PRKCE (PKCɛ) acts as a bona fide oncogene in in vitro and in vivo models of tumorigenesis. Previous studies have reported expression of PKCɛ in breast, prostate and lung tumors above that of normal adjacent tissue. Data from the cancer genome atlas suggest increased copy number of PRKCE in triple negative breast cancer (TNBC). We find that overexpression of PKCɛ in a non-tumorigenic breast epithelial cell line is sufficient to overcome contact inhibition and results in the formation of cellular foci. Correspondingly, inhibition of PKCɛ in a TNBC cell model results in growth defects in two-dimensional (2D) and three-dimensional (3D) culture conditions and orthotopic xenografts. Using stable isotope labeling of amino acids in a cell culture phosphoproteomic approach, we find that CTNND1/p120ctn phosphorylation at serine 268 (P-S268) occurs in a strictly PKCɛ-dependent manner, and that loss of PKCɛ signaling in TNBC cells leads to reversal of mesenchymal morphology and signaling. In a model of Ras activation, inhibition of PKCɛ is sufficient to block mesenchymal cell morphology. Finally, treatment with a PKCɛ ATP mimetic inhibitor, PF-5263555, recapitulates genetic loss of function experiments impairing p120ctn phosphorylation as well as compromising TNBC cell growth in vitro and in vivo. We demonstrate PKCɛ as a tractable therapeutic target for TNBC, where p120ctn phosphorylation may serve as a readout for monitoring patient response.
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7
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Vandenbroucke St Amant E, Tauseef M, Vogel SM, Gao XP, Mehta D, Komarova YA, Malik AB. PKCα activation of p120-catenin serine 879 phospho-switch disassembles VE-cadherin junctions and disrupts vascular integrity. Circ Res 2012; 111:739-49. [PMID: 22798526 DOI: 10.1161/circresaha.112.269654] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
RATIONALE Adherens junctions (AJs) are the primary intercellular junctions in microvessels responsible for endothelial barrier function. Homophilic adhesion of vascular endothelial (VE) cadherin forms AJs, which are stabilized by binding of p120-catenin (p120). p120 dissociation from VE-cadherin results in loss of VE-cadherin homotypic interaction and AJ disassembly; however, the signaling mechanisms regulating p120 dissociation from VE-cadherin are not understood. OBJECTIVE To address the mechanism of protein kinase C (PKC)-α function in increasing endothelial permeability, we determined the role of PKCα phosphorylation of p120 in mediating disruption of AJ integrity. METHODS AND RESULTS We showed that PKCα phosphorylation of p120 at serine (S)879 in response to thrombin or lipopolysaccharide challenge reduced p120 binding affinity for VE-cadherin and mediated AJ disassembly secondary to VE-cadherin internalization. In studies in mouse lung vessels, expression of the phosphodeficient S879A-p120 mutant prevented the increase in vascular permeability induced by activation of the thrombin receptor PAR-1. CONCLUSIONS PKCα phosphorylation of p120 at S879 is a critical phospho-switch mediating disassociation of p120 from VE-cadherin that results in AJ disassembly. Therefore, blocking PKCα-mediated p120 phosphorylation represents a novel targeted anti-inflammatory strategy to prevent disruption of vascular endothelial barrier function.
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Affiliation(s)
- Emily Vandenbroucke St Amant
- Department of Pharmacology, Center for Lung and Vascular Biology, University of Illinois College of Medicine, 835 S Wolcott Ave, M/C 86, Chicago, IL 60612, USA
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8
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Petrova YI, Spano MM, Gumbiner BM. Conformational epitopes at cadherin calcium-binding sites and p120-catenin phosphorylation regulate cell adhesion. Mol Biol Cell 2012; 23:2092-108. [PMID: 22513089 PMCID: PMC3364174 DOI: 10.1091/mbc.e11-12-1060] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The activity state of E-cadherin is controlled by conformational epitopes at interfaces between different EC domains, which are coupled to p120-catenin phosphorylation. Dephosphorylation activates adhesion, whereas phosphorylation inhibits activation. p120-dependent changes in the physical state of E-cadherin regulate epithelial cell morphogenesis. We investigated changes in cadherin structure at the cell surface that regulate its adhesive activity. Colo 205 cells are nonadhesive cells with a full but inactive complement of E-cadherin–catenin complexes at the cell surface, but they can be triggered to adhere and form monolayers. We were able to distinguish the inactive and active states of E-cadherin at the cell surface by using a special set of monoclonal antibodies (mAbs). Another set of mAbs binds E-cadherin and strongly activates adhesion. In other epithelial cell types these activating mAbs inhibit growth factor–induced down-regulation of adhesion and epithelial morphogenesis, indicating that these phenomena are also controlled by E-cadherin activity at the cell surface. Both types of mAbs recognize conformational epitopes at different interfaces between extracellular cadherin repeat domains (ECs), especially near calcium-binding sites. Activation also induces p120-catenin dephosphorylation, as well as changes in the cadherin cytoplasmic domain. Moreover, phospho-site mutations indicate that dephosphorylation of specific Ser/Thr residues in the N-terminal domain of p120-catenin mediate adhesion activation. Thus physiological regulation of the adhesive state of E-cadherin involves physical and/or conformational changes in the EC interface regions of the ectodomain at the cell surface that are mediated by catenin-associated changes across the membrane.
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Affiliation(s)
- Yuliya I Petrova
- Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
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9
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Smith AL, Dohn MR, Brown MV, Reynolds AB. Association of Rho-associated protein kinase 1 with E-cadherin complexes is mediated by p120-catenin. Mol Biol Cell 2011; 23:99-110. [PMID: 22031287 PMCID: PMC3248908 DOI: 10.1091/mbc.e11-06-0497] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The dynamic functional linkage of cadherins with the underlying actin cytoskeleton is tightly regulated to achieve proper cell-cell adhesion. p120-catenin (p120) regulates both cadherin stability and actin dynamics, but the relationship between these two functions remains unclear. Using a novel proteomic approach called reversible cross-link immunoprecipitation, or ReCLIP, we previously identified a physical interaction between p120 and Rho-associated protein kinase 1 (ROCK1), a major effector of RhoA. In this paper, we show that a discrete fraction of cellular ROCK1 coimmunoprecipitates with p120 and precisely colocalizes to adherens junctions (AJs). Manipulation of AJs using a calcium-switch assay and cadherin-blocking antibodies indicates direct recruitment of ROCK1 to newly forming junctions. Importantly, we find that p120 links ROCK1 to the cadherin complex, as ROCK1 coimmunoprecipitates with wild-type but not p120-uncoupled E-cadherin. Moreover, depletion of ROCK1 using short-hairpin RNA results in dramatic mislocalization of the cadherin complex and junctional actin. These data are consistent with a model in which p120 dynamically regulates Rho-GTPase activity at the cadherin complex through transient interaction with several of its up- and downstream effectors, including ROCK1.
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Affiliation(s)
- Andrew L Smith
- Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA
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10
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Troyanovsky RB, Klingelhöfer J, Troyanovsky SM. α-Catenin contributes to the strength of E-cadherin-p120 interactions. Mol Biol Cell 2011; 22:4247-55. [PMID: 21937720 PMCID: PMC3216651 DOI: 10.1091/mbc.e11-03-0250] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Cadherin–catenin interactions play an important role in cadherin adhesion. In the cadherin complex, α-catenin contributes to the binding strength of another catenin, p120, to the same complex. The data suggest that α-catenin–p120 contact within the cadherin–catenin complex can regulate cadherin trafficking. Cadherin–catenin interactions play an important role in cadherin-mediated adhesion. Here we present strong evidence that in the cadherin–catenin complex α-catenin contributes to the binding strength of another catenin, p120, to the same complex. Specifically, we found that a β-catenin–uncoupled cadherin mutant interacts much more weakly with p120 than its full-size counterpart and that it is rapidly endocytosed from the surface of A-431 cells. We also showed that p120 overexpression stabilizes this mutant on the cell surface. Examination of the α-catenin–deficient MDA-MB-468 cells and their derivates in which α-catenin was reintroduced showed that α-catenin reinforces E-cadherin–p120 association. Finally, a cross-linking analysis of the cadherin–catenin complex indicated that a large loop located in the middle of the p120 arm-repeat domain is in close spatial vicinity to the amino-terminal VH1 domain of α-catenin. The six amino acid–long extension of this loop, caused by an alternative splicing, weakens p120 binding to cadherin. The data suggest that α-catenin–p120 contact within the cadherin–catenin complex can regulate cadherin trafficking.
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Affiliation(s)
- Regina B Troyanovsky
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
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11
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Ardawatia VV, Masià-Balagué M, Krakstad BF, Johansson BB, Kreitzburg KM, Spriet E, Lewis AE, Meigs TE, Aragay AM. Gα12 binds to the N-terminal regulatory domain of p120ctn, and downregulates p120ctn tyrosine phosphorylation induced by Src family kinases via a RhoA independent mechanism. Exp Cell Res 2011; 317:293-306. [DOI: 10.1016/j.yexcr.2010.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 10/18/2010] [Accepted: 10/18/2010] [Indexed: 01/23/2023]
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12
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Smith AL, Friedman DB, Yu H, Carnahan RH, Reynolds AB. ReCLIP (reversible cross-link immuno-precipitation): an efficient method for interrogation of labile protein complexes. PLoS One 2011; 6:e16206. [PMID: 21283770 PMCID: PMC3024417 DOI: 10.1371/journal.pone.0016206] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Accepted: 12/08/2010] [Indexed: 02/06/2023] Open
Abstract
The difficulty of maintaining intact protein complexes while minimizing non-specific background remains a significant limitation in proteomic studies. Labile interactions, such as the interaction between p120-catenin and the E-cadherin complex, are particularly challenging. Using the cadherin complex as a model-system, we have developed a procedure for efficient recovery of otherwise labile protein-protein interactions. We have named the procedure “ReCLIP” (Reversible Cross-Link Immuno-Precipitation) to reflect the primary elements of the method. Using cell-permeable, thiol-cleavable crosslinkers, normally labile interactions (i.e. p120 and E-cadherin) are stabilized in situ prior to isolation. After immunoprecipitation, crosslinked binding partners are selectively released and all other components of the procedure (i.e. beads, antibody, and p120 itself) are discarded. The end result is extremely efficient recovery with exceptionally low background. ReCLIP therefore appears to provide an excellent alternative to currently available affinity-purification approaches, particularly for studies of labile complexes.
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Affiliation(s)
- Andrew L. Smith
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee, United States of America
| | - David B. Friedman
- Mass Spectrometry Research Center, Department of Biochemistry, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Huapeng Yu
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Robert H. Carnahan
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Albert B. Reynolds
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee, United States of America
- * E-mail:
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Fukunaga Y, Svoboda RA, Cerny RL, Johnson KR, Wheelock MJ. Expression artifact with retroviral vectors based on pBMN. Anal Biochem 2009; 395:49-53. [PMID: 19602420 DOI: 10.1016/j.ab.2009.07.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2009] [Revised: 07/01/2009] [Accepted: 07/09/2009] [Indexed: 11/25/2022]
Abstract
While characterizing various splice forms of p120 catenin, we observed what appeared to be a novel posttranslational modification of p120, resulting in a higher molecular weight form that was dependent on the splicing pattern. Further investigation revealed the higher molecular weight form to be a fusion protein between sequences encoded by the retroviral vector and p120. We found that the publicly available sequence of the vector we used does not agree with the experimental sequence. We caution other investigators to be aware of this potential artifact.
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Affiliation(s)
- Yoshitaka Fukunaga
- Department of Oral Biology, University of Nebraska Medical Center, Omaha, 68198, USA
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14
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Ogden SR, Wroblewski LE, Weydig C, Romero-Gallo J, O'Brien DP, Israel DA, Krishna US, Fingleton B, Reynolds AB, Wessler S, Peek RM. p120 and Kaiso regulate Helicobacter pylori-induced expression of matrix metalloproteinase-7. Mol Biol Cell 2008; 19:4110-21. [PMID: 18653469 DOI: 10.1091/mbc.e08-03-0283] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Helicobacter pylori is the strongest known risk factor for gastric adenocarcinoma, yet only a fraction of infected persons develop cancer. One H. pylori constituent that augments disease risk is the cytotoxin-associated gene (cag) pathogenicity island, which encodes a secretion system that translocates bacterial effector molecules into host cells. Matrix metalloproteinase (MMP)-7, a member of a family of enzymes with tumor-initiating properties, is overexpressed in premalignant and malignant gastric lesions, and H. pylori cag(+) strains selectively increase MMP-7 protein levels in gastric epithelial cells in vitro and in vivo. We now report that H. pylori-mediated mmp-7 induction is transcriptionally regulated via aberrant activation of p120-catenin (p120), a component of adherens junctions. H. pylori increases mmp-7 mRNA levels in a cag- and p120-dependent manner and induces translocation of p120 to the nucleus in vitro and in a novel ex vivo gastric gland culture system. Nuclear translocation of p120 in response to H. pylori relieves Kaiso-mediated transcriptional repression of mmp-7, which is implicated in tumorigenesis. These results indicate that selective and coordinated induction of mmp-7 expression by H. pylori cag(+) isolates may explain in part the augmentation in gastric cancer risk associated with these strains.
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Affiliation(s)
- Seth R Ogden
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232-2279, USA
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15
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KANNO M, AOYAMA Y, ISA Y, YAMAMOTO Y, KITAJIMA Y. p120 catenin is associated with desmogleins when desmosomes are assembled in high-Ca2+medium but not when disassembled in low-Ca2+medium in DJM-1 cells. J Dermatol 2008; 35:317-24. [DOI: 10.1111/j.1346-8138.2008.00480.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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16
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Mruk DD, Silvestrini B, Cheng CY. Anchoring junctions as drug targets: role in contraceptive development. Pharmacol Rev 2008; 60:146-80. [PMID: 18483144 DOI: 10.1124/pr.107.07105] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
In multicellular organisms, cell-cell interactions are mediated in part by cell junctions, which underlie tissue architecture. Throughout spermatogenesis, for instance, preleptotene leptotene spermatocytes residing in the basal compartment of the seminiferous epithelium must traverse the blood-testis barrier to enter the adluminal compartment for continued development. At the same time, germ cells must also remain attached to Sertoli cells, and numerous studies have reported extensive restructuring at the Sertoli-Sertoli and Sertoli-germ cell interface during germ cell movement across the seminiferous epithelium. Furthermore, the proteins and signaling cascades that regulate adhesion between testicular cells have been largely delineated. These findings have unveiled a number of potential "druggable" targets that can be used to induce premature release of germ cells from the seminiferous epithelium, resulting in transient infertility. Herein, we discuss a novel approach with the aim of developing a nonhormonal male contraceptive for future human use, one that involves perturbing adhesion between Sertoli and germ cells in the testis.
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Affiliation(s)
- Dolores D Mruk
- Population Council, Center for Biomedical Research, The Mary M Wohlford Laboratory for Male Contraceptive Research, 1230 York Avenue, New York, NY 10065, USA.
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17
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Vaughan MH, Xia X, Wang X, Chronopoulou E, Gao GJ, Campos-Gonzalez R, Reynolds AB. Generation and characterization of a novel phospho-specific monoclonal antibody to p120-catenin serine 879. Hybridoma (Larchmt) 2008; 26:407-15. [PMID: 18158786 DOI: 10.1089/hyb.2007.0527] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
To better understand the mechanisms that regulate p120-catenin (p120) and E-cadherin function, we are systematically generating phospho-specific monoclonal antibodies (MAb) to the major p120 phosphorylation sites. p120 has emerged recently as a master regulator of E-cadherin stability and an important modulator of RhoGTPase activities. A number of phosphorylation sites have been identified, but none have as yet been linked to specific regulatory roles. Here, we describe a novel phospho-specific monoclonal antibody to the major PKC-induced p120 phosphorylation site, phospho-serine 879 (pS879). With a few exceptions, p120 MAb pS879 is remarkably specific for the phosphorylated S879 epitope and works effectively in common applications such as Western blot analysis, immunoprecipitation, and immunofluorescence. p120 MAb pS879 should facilitate efforts to identify the role of S879 phosphorylation and to map signaling pathways that modify p120 function through activation of PKC.
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Affiliation(s)
- Meredith H Vaughan
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN 37232-6840, USA
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18
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Komarova YA, Mehta D, Malik AB. Dual regulation of endothelial junctional permeability. ACTA ACUST UNITED AC 2007; 2007:re8. [PMID: 18000237 DOI: 10.1126/stke.4122007re8] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
G protein-coupled receptors (GPCRs) of endothelial cells transmit diverse intracellular signals that regulate adherens junction (AJ) permeability. Increased endothelial permeability contributes to pathological processes such as inflammation, atherogenesis, and acute lung injury. Thrombin, a serine protease, and sphingosine-1-phosphate (S1P), a bioactive lipid, regulate endothelial barrier function by activating their respective GPCRs-the protease-activated receptor PAR(1) and the S1P receptor S1P(1)-which initiate intracellular signals that regulate AJ integrity and cytoskeleton organization. The distinct patterns of PAR(1) and S1P(1) signal transduction underlie the functional antagonism between thrombin and S1P. Evidence points to a role for activation of the S1P(1) receptor that is induced by PAR(1)-mediated signaling in the mechanism of AJ reannealing and endothelial barrier repair. Understanding the molecular basis of AJ integrity in the context of inflammation is important in developing novel anti-inflammatory therapeutics. This Review provides a working model for molecular mechanisms for the dual regulation of endothelial barrier function.
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Affiliation(s)
- Yulia A Komarova
- Department of Pharmacology and Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
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19
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Fukumoto Y, Shintani Y, Reynolds AB, Johnson KR, Wheelock MJ. The regulatory or phosphorylation domain of p120 catenin controls E-cadherin dynamics at the plasma membrane. Exp Cell Res 2007; 314:52-67. [PMID: 17719574 PMCID: PMC2211447 DOI: 10.1016/j.yexcr.2007.07.024] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2007] [Revised: 07/16/2007] [Accepted: 07/17/2007] [Indexed: 10/23/2022]
Abstract
In contrast to growth factor-stimulated tyrosine phosphorylation of p120, its relatively constitutive serine/threonine phosphorylation is not well understood. Here we examined the role of serine/threonine phosphorylation of p120 in cadherin function. Expression of cadherins in cadherin-null cells converted them to an epithelial phenotype, induced p120 phosphorylation and localized it to sites of cell contact. Detergent solubility and immunofluorescence confirmed that phosphorylated p120 was at the plasma membrane. E-cadherin constructs incapable of traveling to the plasma membrane did not induce serine/threonine phosphorylation of p120, nor did cadherins constructs incapable of binding p120. However, an E-cadherin cytoplasmic domain construct artificially targeted to the plasma membrane did induce serine/threonine phosphorylation of p120, suggesting phosphorylation occurs independently of signals from cadherin dimerization and trafficking through the ER/Golgi. Solubility assays following calcium switch showed that p120 isoform 3A was more effective at stabilizing E-cadherin at the plasma membrane relative to isoform 4A. Since the major phosphorylation domain of p120 is included in isoform 3A but not 4A, we tested p120 mutated in the known phosphorylation sites in this domain and found that it was even less effective at stabilizing E-cadherin. These data suggest that serine/threonine phosphorylation of p120 influences the dynamics of E-cadherin in junctions.
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Affiliation(s)
- Yuri Fukumoto
- University of Nebraska Medical Center, Eppley Institute for Research in Cancer and Allied Diseases, Omaha, Nebraska 68198-7696
| | - Yasushi Shintani
- University of Nebraska Medical Center, Department of Oral Biology, Omaha, Nebraska 68198-7696
| | - Albert B. Reynolds
- Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232
| | - Keith R. Johnson
- University of Nebraska Medical Center, Department of Oral Biology, Omaha, Nebraska 68198-7696
- University of Nebraska Medical Center, Eppley Institute for Research in Cancer and Allied Diseases, Omaha, Nebraska 68198-7696
- University of Nebraska Medical Center, Eppley Cancer Center, Omaha, Nebraska 68198-7696
| | - Margaret J. Wheelock
- University of Nebraska Medical Center, Department of Oral Biology, Omaha, Nebraska 68198-7696
- University of Nebraska Medical Center, Eppley Institute for Research in Cancer and Allied Diseases, Omaha, Nebraska 68198-7696
- University of Nebraska Medical Center, Eppley Cancer Center, Omaha, Nebraska 68198-7696
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20
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Park JI, Ji H, Jun S, Gu D, Hikasa H, Li L, Sokol SY, McCrea PD. Frodo Links Dishevelled to the p120-Catenin/Kaiso Pathway: Distinct Catenin Subfamilies Promote Wnt Signals. Dev Cell 2006; 11:683-95. [PMID: 17084360 DOI: 10.1016/j.devcel.2006.09.022] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2006] [Revised: 08/14/2006] [Accepted: 09/26/2006] [Indexed: 12/13/2022]
Abstract
p120-catenin is an Arm repeat protein that interacts with varied components such as cadherin, small G proteins, kinases, and the Kaiso transcriptional repressor. Despite recent advances in understanding the roles that p120-catenin and Kaiso play in downstream modulation of Wnt/beta-catenin signaling, the identity of the upstream regulators of the p120-catenin/Kaiso pathway have remained unclear. Here, we find that p120-catenin binds Frodo, which itself interacts with the Wnt pathway protein Dishevelled (Dsh). In Xenopus laevis, we demonstrate that Wnt signals result in Frodo-mediated stabilization of p120-catenin, which, in turn, promotes Kaiso sequestration or removal from the nucleus. Our results point to Dsh and Frodo as upstream regulators of the p120-catenin/Kaiso signaling pathway. Importantly, this suggests that Wnt signals acting through Dsh regulate the stability of p120-catenin in addition to that of beta-catenin, and that each catenin promotes its respective signal in parallel to regulate distinct, as well as shared, direct downstream gene targets.
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Affiliation(s)
- Jae-il Park
- Department of Biochemistry and Molecular Biology and Program in Genes and Development, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, USA
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