1
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Oppenheimer KG, Hager NA, McAtee CK, Filiztekin E, Shang C, Warnick JA, Bruchez MP, Brodsky JL, Prosser DC, Kwiatkowski AV, O’Donnell AF. Optimization of the fluorogen-activating protein tag for quantitative protein trafficking and colocalization studies in S. cerevisiae. Mol Biol Cell 2024; 35:mr5. [PMID: 38809589 PMCID: PMC11244157 DOI: 10.1091/mbc.e24-04-0174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 05/30/2024] Open
Abstract
Spatial and temporal tracking of fluorescent proteins (FPs) in live cells permits visualization of proteome remodeling in response to extracellular cues. Historically, protein dynamics during trafficking have been visualized using constitutively active FPs fused to proteins of interest. While powerful, such FPs label all cellular pools of a protein, potentially masking the dynamics of select subpopulations. To help study protein subpopulations, bioconjugate tags, including the fluorogen activation proteins (FAPs), were developed. FAPs are comprised of two components: a single-chain antibody (SCA) fused to the protein of interest and a malachite-green (MG) derivative, which fluoresces only when bound to the SCA. Importantly, the MG derivatives can be either cell-permeant or -impermeant, thus permitting isolated detection of SCA-tagged proteins at the cell surface and facilitating quantitative endocytic measures. To expand FAP use in yeast, we optimized the SCA for yeast expression, created FAP-tagging plasmids, and generated FAP-tagged organelle markers. To demonstrate FAP efficacy, we coupled the SCA to the yeast G-protein coupled receptor Ste3. We measured Ste3 endocytic dynamics in response to pheromone and characterized cis- and trans-acting regulators of Ste3. Our work significantly expands FAP technology for varied applications in S. cerevisiae.
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Affiliation(s)
| | - Natalie A. Hager
- Department of Biological Sciences, University of Pittsburgh, PA 15260
| | - Ceara K. McAtee
- Department of Biological Sciences, University of Pittsburgh, PA 15260
| | - Elif Filiztekin
- Department of Biological Sciences, University of Pittsburgh, PA 15260
| | - Chaowei Shang
- Department of Biological Sciences, University of Pittsburgh, PA 15260
| | | | - Marcel P. Bruchez
- Molecular Biosensor and Imaging Center, Carnegie Mellon University, Pittsburgh, PA 15213
| | | | - Derek C. Prosser
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284
| | - Adam V. Kwiatkowski
- Department of Cell Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261
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2
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Gross F, Mancini A, Breton B, Kobayashi H, Pereira PHS, Le Gouill C, Bouvier M, Schann S, Leroy X, Sabbagh L. EGFR signaling and pharmacology in oncology revealed with innovative BRET-based biosensors. Commun Biol 2024; 7:250. [PMID: 38429428 PMCID: PMC10907714 DOI: 10.1038/s42003-024-05965-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 02/23/2024] [Indexed: 03/03/2024] Open
Abstract
Mutations of receptor tyrosine kinases (RTKs) are associated with the development of many cancers by modifying receptor signaling and contributing to drug resistance in clinical settings. We present enhanced bystander bioluminescence resonance energy transfer-based biosensors providing new insights into RTK biology and pharmacology critical for the development of more effective RTK-targeting drugs. Distinct SH2-specific effector biosensors allow for real-time and spatiotemporal monitoring of signal transduction pathways engaged upon RTK activation. Using EGFR as a model, we demonstrate the capacity of these biosensors to differentiate unique signaling signatures, with EGF and Epiregulin ligands displaying differences in efficacy, potency, and responses within different cellular compartments. We further demonstrate that EGFR single point mutations found in Glioblastoma or non-small cell lung cancer, impact the constitutive activity of EGFR and response to tyrosine kinase inhibitor. The BRET-based biosensors are compatible with microscopy, and more importantly characterize the next generation of therapeutics directed against RTKs.
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Affiliation(s)
- Florence Gross
- Domain Therapeutics North America Inc., 7171 Frederick-Banting, Saint-Laurent, Quebec, H4S 1Z9, Canada
| | - Arturo Mancini
- Domain Therapeutics North America Inc., 7171 Frederick-Banting, Saint-Laurent, Quebec, H4S 1Z9, Canada
| | - Billy Breton
- Institute for Research in Immunology and Cancer, and Department of Biochemistry and Molecular Medicine, University of Montreal, 2950 Chemin de Polytechnique, Montreal, Quebec, H3T 1J4, Canada
| | - Hiroyuki Kobayashi
- Institute for Research in Immunology and Cancer, and Department of Biochemistry and Molecular Medicine, University of Montreal, 2950 Chemin de Polytechnique, Montreal, Quebec, H3T 1J4, Canada
| | - Pedro Henrique Scarpelli Pereira
- Institute for Research in Immunology and Cancer, and Department of Biochemistry and Molecular Medicine, University of Montreal, 2950 Chemin de Polytechnique, Montreal, Quebec, H3T 1J4, Canada
| | - Christian Le Gouill
- Institute for Research in Immunology and Cancer, and Department of Biochemistry and Molecular Medicine, University of Montreal, 2950 Chemin de Polytechnique, Montreal, Quebec, H3T 1J4, Canada
| | - Michel Bouvier
- Institute for Research in Immunology and Cancer, and Department of Biochemistry and Molecular Medicine, University of Montreal, 2950 Chemin de Polytechnique, Montreal, Quebec, H3T 1J4, Canada
| | - Stephan Schann
- Domain Therapeutics SA, 220 Boulevard Gonthier D'Andernach, 67400, Strasbourg-Illkirch, France
| | - Xavier Leroy
- Domain Therapeutics SA, 220 Boulevard Gonthier D'Andernach, 67400, Strasbourg-Illkirch, France
| | - Laurent Sabbagh
- Domain Therapeutics North America Inc., 7171 Frederick-Banting, Saint-Laurent, Quebec, H4S 1Z9, Canada.
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3
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Jiao D, Chen Y, Liu X, Tang X, Chen J, Liu Y, Jiang C, Chen Q. Targeting MET endocytosis or degradation to overcome HGF-induced gefitinib resistance in EGFR-sensitive mutant lung adenocarcinoma. Biochem Biophys Res Commun 2023; 682:371-380. [PMID: 37844446 DOI: 10.1016/j.bbrc.2023.10.037] [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: 08/04/2023] [Revised: 09/24/2023] [Accepted: 10/09/2023] [Indexed: 10/18/2023]
Abstract
The overexpression of hepatic growth factor(HGF) is one of the important reasons for the development of gefitinib resistance in EGFR-sensitive mutant lung adenocarcinoma cells. Targeting the HGF receptor MET through endocytosis inhibition or degradation induction has been proposed as a potential strategy to overcome this resistance. However, the effectiveness of this approach remains needs to be evaluated. In this study, we observed that MET receptors undergo persistent endocytosis but rarely enter the degradation pathway in HGF-overexpressing cells. We showed that MET endocytosis can be inhibited by using gene silence method or MET inhibitors. CHC or DNM2 gene silence slightly increases the sensitivity of resistant cells to gefitinib without affecting MET activity, while GRB2 gene silence can simultaneously inhibit MET endocytosis and reduce MET activity, resulting in a significant reversal effect of gefitinib resistance. Similarly, MET inhibitors significantly reverse drug resistance, accompanied by simultaneous inhibition of MET endocytosis and activity, highlighting the importance of both endocytosis and activity in HGF-induced gefitinib resistance. Additionally, we demonstrated that promoting MET degradation through deubiquitinase (USP8 or USP32) gene silence is another effective method for reversing drug resistance. Overall, our findings suggest that targeting MET receptor endocytosis and degradation is an attractive strategy for overcoming HGF-induced gefitinib resistance in EGFR-sensitive mutant lung adenocarcinoma.
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Affiliation(s)
- Demin Jiao
- Department of Respiratory and Critical Care Medicine, The 903rd Hospital of PLA (Xihu Hospital Affiliated to Hangzhou Medical College), Hangzhou, 310013, China
| | - Yu Chen
- Department of Respiratory and Critical Care Medicine, The 903rd Hospital of PLA (Xihu Hospital Affiliated to Hangzhou Medical College), Hangzhou, 310013, China
| | - Xiang Liu
- Department of Respiratory and Critical Care Medicine, The 903rd Hospital of PLA (Xihu Hospital Affiliated to Hangzhou Medical College), Hangzhou, 310013, China
| | - Xiali Tang
- Department of Respiratory and Critical Care Medicine, The 903rd Hospital of PLA (Xihu Hospital Affiliated to Hangzhou Medical College), Hangzhou, 310013, China
| | - Jun Chen
- Department of Respiratory and Critical Care Medicine, The 903rd Hospital of PLA (Xihu Hospital Affiliated to Hangzhou Medical College), Hangzhou, 310013, China
| | - Yongyang Liu
- The First Clinical Medical College, Wenzhou Medical University, Wenzhou, 325000, China
| | - Chunyan Jiang
- Department of Respiratory and Critical Care Medicine, The 903rd Hospital of PLA (Xihu Hospital Affiliated to Hangzhou Medical College), Hangzhou, 310013, China.
| | - Qingyong Chen
- Department of Respiratory and Critical Care Medicine, The 903rd Hospital of PLA (Xihu Hospital Affiliated to Hangzhou Medical College), Hangzhou, 310013, China; The First Clinical Medical College, Wenzhou Medical University, Wenzhou, 325000, China.
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4
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Ko A, Hasanain M, Oh YT, D'Angelo F, Sommer D, Frangaj B, Tran S, Bielle F, Pollo B, Paterra R, Mokhtari K, Soni RK, Peyre M, Eoli M, Papi L, Kalamarides M, Sanson M, Iavarone A, Lasorella A. LZTR1 Mutation Mediates Oncogenesis through Stabilization of EGFR and AXL. Cancer Discov 2023; 13:702-723. [PMID: 36445254 DOI: 10.1158/2159-8290.cd-22-0376] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 09/23/2022] [Accepted: 11/21/2022] [Indexed: 12/02/2022]
Abstract
LZTR1 is the substrate-specific adaptor of a CUL3-dependent ubiquitin ligase frequently mutated in sporadic and syndromic cancer. We combined biochemical and genetic studies to identify LZTR1 substrates and interrogated their tumor-driving function in the context of LZTR1 loss-of-function mutations. Unbiased screens converged on EGFR and AXL receptor tyrosine kinases as LZTR1 interactors targeted for ubiquitin-dependent degradation in the lysosome. Pathogenic cancer-associated mutations of LZTR1 failed to promote EGFR and AXL degradation, resulting in dysregulated growth factor signaling. Conditional inactivation of Lztr1 and Cdkn2a in the mouse nervous system caused tumors in the peripheral nervous system including schwannoma-like tumors, thus recapitulating aspects of schwannomatosis, the prototype tumor predisposition syndrome sustained by LZTR1 germline mutations. Lztr1- and Cdkn2a-deleted tumors aberrantly accumulated EGFR and AXL and exhibited specific vulnerability to EGFR and AXL coinhibition. These findings explain tumorigenesis by LZTR1 inactivation and offer therapeutic opportunities to patients with LZTR1-mutant cancer. SIGNIFICANCE EGFR and AXL are substrates of LZTR1-CUL3 ubiquitin ligase. The frequent somatic and germline mutations of LZTR1 in human cancer cause EGFR and AXL accumulation and deregulated signaling. LZTR1-mutant tumors show vulnerability to concurrent inhibition of EGFR and AXL, thus providing precision targeting to patients affected by LZTR1-mutant cancer. This article is highlighted in the In This Issue feature, p. 517.
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Affiliation(s)
- Aram Ko
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Mohammad Hasanain
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Young Taek Oh
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Fulvio D'Angelo
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Danika Sommer
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Brulinda Frangaj
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
| | - Suzanne Tran
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Laboratory of Neuropathology, Paris, France
| | - Franck Bielle
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Laboratory of Neuropathology, Paris, France
| | - Bianca Pollo
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Rosina Paterra
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Karima Mokhtari
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Neurosurgery Service, Paris, France
| | - Rajesh Kumar Soni
- Proteomics Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York
| | - Matthieu Peyre
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Neurosurgery Service, Paris, France
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Service of Neurology 2-Mazarin, Equipe lLNCC, Paris, France
| | - Marica Eoli
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Laura Papi
- The Department of Experimental and Clinical, Medical Genetics Unit, Biomedical Sciences "Mario Serio," University of Florence, Florence, Italy
| | - Michel Kalamarides
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Neurosurgery Service, Paris, France
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Service of Neurology 2-Mazarin, Equipe lLNCC, Paris, France
| | - Marc Sanson
- Sorbonne Université, INSERM U1127, CNRS UMR 7225, Brain Institute, ICM, AP-HP, University Hospital La Pitié Salpêtrière-Charles Foix, Service of Neurology 2-Mazarin, Equipe lLNCC, Paris, France
- Onconeurotek Tumor Bank, Brain and Spinal Cord Institute ICM, 75013 Paris, France
| | - Antonio Iavarone
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
- Department of Neurology, Columbia University Medical Center, New York, New York
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York
| | - Anna Lasorella
- Institute for Cancer Genetics, Columbia University Medical Center, New York, New York
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York
- Department of Pediatrics, Columbia University Medical Center, New York, New York
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5
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Kedia S, Aghanoori MR, Burns KML, Subha M, Williams L, Wen P, Kopp D, Erickson SL, Harvey EM, Chen X, Hua M, Perez JU, Ishraque F, Yang G. Ubiquitination and deubiquitination of 4E-T regulate neural progenitor cell maintenance and neurogenesis by controlling P-body formation. Cell Rep 2022; 40:111070. [PMID: 35830814 DOI: 10.1016/j.celrep.2022.111070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 05/17/2022] [Accepted: 06/14/2022] [Indexed: 11/19/2022] Open
Abstract
During embryogenesis, neural stem/progenitor cells (NPCs) proliferate and differentiate to form brain tissues. Here, we show that in the developing murine cerebral cortex, the balance between the NPC maintenance and differentiation is coordinated by ubiquitin signals that control the formation of processing bodies (P-bodies), cytoplasmic membraneless organelles critical for cell state regulation. We find that the deubiquitinase Otud4 and the E3 ligase Trim56 counter-regulate the ubiquitination status of a core P-body protein 4E-T to orchestrate the assembly of P-bodies in NPCs. Aberrant induction of 4E-T ubiquitination promotes P-body assembly in NPCs and causes a delay in their cell cycle progression and differentiation. In contrast, loss of 4E-T ubiquitination abrogates P-bodies and results in premature neurogenesis. Thus, our results reveal a critical role of ubiquitin-dependent regulation of P-body formation in NPC maintenance and neurogenesis during brain development.
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Affiliation(s)
- Shreeya Kedia
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada
| | - Mohamad-Reza Aghanoori
- Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada; Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Kaylan M L Burns
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada
| | - Maneesha Subha
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada
| | - Laura Williams
- Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada; Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Pengqiang Wen
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada
| | - Drayden Kopp
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada
| | - Sarah L Erickson
- Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada; Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Emily M Harvey
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada
| | - Xin Chen
- Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada; Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Michelle Hua
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada
| | - Jose Uriel Perez
- Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada
| | - Fatin Ishraque
- Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada
| | - Guang Yang
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, Calgary, AB T2N 4N1, Canada; Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Owerko Centre, ACHRI, Calgary, AB T2N 4N1, Canada.
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6
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Ramírez Moreno M, Bulgakova NA. The Cross-Talk Between EGFR and E-Cadherin. Front Cell Dev Biol 2022; 9:828673. [PMID: 35127732 PMCID: PMC8811214 DOI: 10.3389/fcell.2021.828673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 12/31/2021] [Indexed: 12/18/2022] Open
Abstract
Epidermal growth factor receptor (EGFR) and adhesion protein E-cadherin are major regulators of proliferation and differentiation in epithelial cells. Consistently, defects in both EGFR and E-cadherin-mediated intercellular adhesion are linked to various malignancies. These defects in either are further exacerbated by the reciprocal interactions between the two transmembrane proteins. On the one hand, EGFR can destabilize E-cadherin adhesion by increasing E-cadherin endocytosis, modifying its interactions with cytoskeleton and decreasing its expression, thus promoting tumorigenesis. On the other hand, E-cadherin regulates EGFR localization and tunes its activity. As a result, loss and mutations of E-cadherin promote cancer cell invasion due to uncontrolled activation of EGFR, which displays enhanced surface motility and changes in endocytosis. In this minireview, we discuss the molecular and cellular mechanisms of the cross-talk between E-cadherin and EGFR, highlighting emerging evidence for the role of endocytosis in this feedback, as well as its relevance to tissue morphogenesis, homeostasis and cancer progression.
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7
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Akimov V, Fehling-Kaschek M, Barrio-Hernandez I, Puglia M, Bunkenborg J, Nielsen MM, Timmer J, Dengjel J, Blagoev B. Magnitude of Ubiquitination Determines the Fate of Epidermal Growth Factor Receptor Upon Ligand Stimulation. J Mol Biol 2021; 433:167240. [PMID: 34508725 DOI: 10.1016/j.jmb.2021.167240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/17/2021] [Accepted: 09/01/2021] [Indexed: 12/23/2022]
Abstract
Receptor tyrosine kinases (RTK) bind growth factors and are critical for cell proliferation and differentiation. Their dysregulation leads to a loss of growth control, often resulting in cancer. Epidermal growth factor receptor (EGFR) is the prototypic RTK and can bind several ligands exhibiting distinct mitogenic potentials. Whereas the phosphorylation on individual EGFR sites and their roles for downstream signaling have been extensively studied, less is known about ligand-specific ubiquitination events on EGFR, which are crucial for signal attenuation and termination. We used a proteomics-based workflow for absolute quantitation combined with mathematical modeling to unveil potentially decisive ubiquitination events on EGFR from the first 30 seconds to 15 minutes of stimulation. Four ligands were used for stimulation: epidermal growth factor (EGF), heparin-binding-EGF like growth factor, transforming growth factor-α and epiregulin. Whereas only little differences in the order of individual ubiquitination sites were observed, the overall amount of modified receptor differed depending on the used ligand, indicating that absolute magnitude of EGFR ubiquitination, and not distinctly regulated ubiquitination sites, is a major determinant for signal attenuation and the subsequent cellular outcomes.
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Affiliation(s)
- Vyacheslav Akimov
- Center for Experimental BioInformatics, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Mirjam Fehling-Kaschek
- Institut of Physics, University of Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg, Germany
| | - Inigo Barrio-Hernandez
- Center for Experimental BioInformatics, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Michele Puglia
- Center for Experimental BioInformatics, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Jakob Bunkenborg
- Center for Experimental BioInformatics, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Mogens M Nielsen
- Center for Experimental BioInformatics, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Jens Timmer
- Institut of Physics, University of Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg, Germany; Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Schänzlestr. 18, 79104 Freiburg, Germany
| | - Jörn Dengjel
- Department of Biology, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| | - Blagoy Blagoev
- Center for Experimental BioInformatics, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
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8
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Shen CH, Chou CC, Lai TY, Hsu JE, Lin YS, Liu HY, Chen YK, Ho IL, Hsu PH, Chuang TH, Lee CY, Hsu LC. ZNRF1 Mediates Epidermal Growth Factor Receptor Ubiquitination to Control Receptor Lysosomal Trafficking and Degradation. Front Cell Dev Biol 2021; 9:642625. [PMID: 33996800 PMCID: PMC8118649 DOI: 10.3389/fcell.2021.642625] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 04/08/2021] [Indexed: 11/30/2022] Open
Abstract
Activation of the epidermal growth factor receptor (EGFR) is crucial for development, tissue homeostasis, and immunity. Dysregulation of EGFR signaling is associated with numerous diseases. EGFR ubiquitination and endosomal trafficking are key events that regulate the termination of EGFR signaling, but their underlying mechanisms remain obscure. Here, we reveal that ZNRF1, an E3 ubiquitin ligase, controls ligand-induced EGFR signaling via mediating receptor ubiquitination. Deletion of ZNRF1 inhibits endosome-to-lysosome sorting of EGFR, resulting in delayed receptor degradation and prolonged downstream signaling. We further demonstrate that ZNRF1 and Casitas B-lineage lymphoma (CBL), another E3 ubiquitin ligase responsible for EGFR ubiquitination, mediate ubiquitination at distinct lysine residues on EGFR. Furthermore, loss of ZNRF1 results in increased susceptibility to herpes simplex virus 1 (HSV-1) infection due to enhanced EGFR-dependent viral entry. Our findings identify ZNRF1 as a novel regulator of EGFR signaling, which together with CBL controls ligand-induced EGFR ubiquitination and lysosomal trafficking.
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Affiliation(s)
- Chia-Hsing Shen
- Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - Chih-Chang Chou
- Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - Ting-Yu Lai
- Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - Jer-En Hsu
- Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - You-Sheng Lin
- Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - Huai-Yu Liu
- Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - Yan-Kai Chen
- Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - I-Lin Ho
- Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - Pang-Hung Hsu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung City, Taiwan
| | - Tsung-Hsien Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Chih-Yuan Lee
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Chung Hsu
- Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan.,Center of Precision Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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9
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Crotchett BLM, Ceresa BP. Knockout of c-Cbl slows EGFR endocytic trafficking and enhances EGFR signaling despite incompletely blocking receptor ubiquitylation. Pharmacol Res Perspect 2021; 9:e00756. [PMID: 33811466 PMCID: PMC8019067 DOI: 10.1002/prp2.756] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 12/17/2022] Open
Abstract
Epidermal growth factor receptor (EGFR) activity is necessary and sufficient for corneal epithelial homeostasis. However, the addition of exogenous Epidermal Growth Factor (EGF) does not reliably restore the corneal epithelium when wounded. This is likely due to high levels of endogenous EGF in tear fluid as well as desensitization of the EGFR following ligand stimulation. We hypothesize that preventing receptor downregulation is an alternative mechanism to enhance EGFR signaling and promote the restoration of compromised corneas. Ligand-dependent EGFR ubiquitylation is associated with the targeted degradation of the receptor. In this manuscript, we determine whether knockout of c-Cbl, an E3 ubiquitin ligase that ubiquitylates the EGFR, is sufficient to prolong EGFR phosphorylation and sustain signaling. Using CRISPR/Cas9 gene editing, we generated immortalized human corneal epithelial (hTCEpi) cells lacking c-Cbl. Knockout (KO) cells expressed the other E3 ligases at the same levels as the control cells, indicating other E3 ligases were not up-regulated. As compared to the control cells, EGF-stimulated EGFR ubiquitylation was reduced in KO cells, but not completely abolished. Similarly, EGF:EGFR trafficking was slowed, with a 35% decrease in the rate of endocytosis and a twofold increase in the receptor half-life. This resulted in a twofold increase in the magnitude of EGFR phosphorylation, with no change in duration. Conversely, Mitogen Activating Protein Kinase (MAPK) phosphorylation did not increase in magnitude but was sustained for 2-3 h as compared to control cells. We propose antagonizing c-Cbl will partially alter receptor ubiquitylation and endocytic trafficking but this is sufficient to enhance downstream signaling.
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Affiliation(s)
- Brandon L M Crotchett
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, USA
| | - Brian P Ceresa
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, USA.,Department of Visual Science, University of Louisville, Louisville, KY, USA
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10
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Rosenkranz AA, Slastnikova TA. Epidermal Growth Factor Receptor: Key to Selective Intracellular Delivery. BIOCHEMISTRY (MOSCOW) 2021; 85:967-1092. [PMID: 33050847 DOI: 10.1134/s0006297920090011] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Epidermal growth factor receptor (EGFR) is an integral surface protein mediating cellular response to a number of growth factors. Its overexpression and increased activation due to mutations is one of the most common traits of many types of cancer. Development and clinical use of the agents, which block EGFR activation, became a prime example of the personalized targeted medicine. However, despite the obvious success in this area, cancer cure remains unattainable in most cases. Because of that, as well as the result of the search for possible ways to overcome the difficulties of treatment, a huge number of new treatment methods relying on the use of EGFR overexpression and its changes to destroy cancer cells. Modern data on the structure, functioning, and intracellular transport of EGFR, its natural ligands, as well as signaling cascades triggered by the EGFR activation, peculiarities of the EGFR expression and activation in oncological disorders, as well as applied therapeutic approaches aimed at blocking EGFR signaling pathway are summarized and analyzed in this review. Approaches to the targeted delivery of various chemotherapeutic agents, radionuclides, immunotoxins, photosensitizers, as well as the prospects for gene therapy aimed at cancer cells with EGFR overexpression are reviewed in detail. It should be noted that increasing attention is being paid nowadays to the development of multifunctional systems, either carrying several different active agents, or possessing several environment-dependent transport functions. Potentials of the systems based on receptor-mediated endocytosis of EGFR and their possible advantages and limitations are discussed.
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Affiliation(s)
- A A Rosenkranz
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia. .,Institute of Gene Biology, Russian Academy of Sciences, Moscow, 119334, Russia
| | - T A Slastnikova
- Institute of Gene Biology, Russian Academy of Sciences, Moscow, 119334, Russia
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11
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Cooperation and Interplay between EGFR Signalling and Extracellular Vesicle Biogenesis in Cancer. Cells 2020; 9:cells9122639. [PMID: 33302515 PMCID: PMC7764760 DOI: 10.3390/cells9122639] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 12/13/2022] Open
Abstract
Epidermal growth factor receptor (EGFR) takes centre stage in carcinogenesis throughout its entire cellular trafficking odyssey. When loaded in extracellular vesicles (EVs), EGFR is one of the key proteins involved in the transfer of information between parental cancer and bystander cells in the tumour microenvironment. To hijack EVs, EGFR needs to play multiple signalling roles in the life cycle of EVs. The receptor is involved in the biogenesis of specific EV subpopulations, it signals as an active cargo, and it can influence the uptake of EVs by recipient cells. EGFR regulates its own inclusion in EVs through feedback loops during disease progression and in response to challenges such as hypoxia, epithelial-to-mesenchymal transition and drugs. Here, we highlight how the spatiotemporal rules that regulate EGFR intracellular function intersect with and influence different EV biogenesis pathways and discuss key regulatory features and interactions of this interplay. We also elaborate on outstanding questions relating to EGFR-driven EV biogenesis and available methods to explore them. This mechanistic understanding will be key to unravelling the functional consequences of direct anti-EGFR targeted and indirect EGFR-impacting cancer therapies on the secretion of pro-tumoural EVs and on their effects on drug resistance and microenvironment subversion.
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12
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USP25 Regulates EGFR Fate by Modulating EGF-Induced Ubiquitylation Dynamics. Biomolecules 2020; 10:biom10111548. [PMID: 33202887 PMCID: PMC7696865 DOI: 10.3390/biom10111548] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 11/28/2022] Open
Abstract
Deregulated epidermal growth factor receptor (EGFR) signaling is a key feature in different stages of oncogenesis. One important mechanism whereby cancer cells achieve increased and uncontrolled EGFR signaling is escaping down-modulation of the receptor. Ubiquitylation of the EGFR plays a decisive role in this process, as it regulates receptor internalization, trafficking and degradation. Deubiquitinating enzymes (DUBs) may oppose the ubiquitylation process, antagonizing or even promoting receptor degradation. Here, we use qualitative and quantitative assays to measure EGFR internalization and degradation after Ubiquitin Specific Peptidase 25 (USP25) depletion. We show that, by acting at the early steps of EGFR internalization, USP25 restrains the degradation of the EGFR by assisting in the association of the E3 ubiquitin ligase c-Cbl with EGFR, thereby modulating the amplitude of ubiquitylation on the receptor. This study establishes USP25 as a negative regulator of the EGFR down-modulation process and suggests that it is a promising target for pharmacological intervention to hamper oncogenic growth signals in tumors that depend on the EGFR.
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13
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OTUD4 enhances TGFβ signalling through regulation of the TGFβ receptor complex. Sci Rep 2020; 10:15725. [PMID: 32973272 PMCID: PMC7519109 DOI: 10.1038/s41598-020-72791-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 09/02/2020] [Indexed: 11/18/2022] Open
Abstract
Systematic control of the transforming growth factor-β (TGFβ) pathway is essential to keep the amplitude and the intensity of downstream signalling at appropriate levels. Ubiquitination plays a crucial role in the general regulation of this pathway. Here we identify the deubiquitinating enzyme OTUD4 as a transcriptional target of the TGFβ pathway that functions through a positive feedback loop to enhance overall TGFβ activity. Interestingly we demonstrate that OTUD4 functions through both catalytically dependent and independent mechanisms to regulate TGFβ activity. Specifically, we find that OTUD4 enhances TGFβ signalling by promoting the membrane presence of TGFβ receptor I. Furthermore, we demonstrate that OTUD4 inactivates the TGFβ negative regulator SMURF2 suggesting that OTUD4 regulates multiple nodes of the TGFβ pathway to enhance TGFβ activity.
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14
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Huang D, Fan Q, Liu Z, Zhang S, Huang W, Li H, Liang C, Sun F. An Epitope on EGFR Loading Catastrophic Internalization Serve as a Novel Oncotarget for Hepatocellular Carcinoma Therapy. Cancers (Basel) 2020; 12:E456. [PMID: 32079107 PMCID: PMC7072198 DOI: 10.3390/cancers12020456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/12/2020] [Accepted: 02/14/2020] [Indexed: 11/28/2022] Open
Abstract
The precise role of Epidermal Growth Factor Receptor (EGFR) in Hepatocellular carcinoma (HCC) cells is unknown and EGFR inhibitors have not achieved positive clinical results. The rapid and drastic internalization of EGFR has been proved to successfully treat EGFR inhibitor-resistant patients in recent clinical trials. Here, the anti-tumor efficacy of a protein (rLZ-8) from Ganoderma lucidum was evaluated, it was demonstrated that rLZ-8 could bind to EGFR specifically, drastically enter into Hepatoma cells, abrogate endosomal recycling and induce HCC cell death. Surprisingly, we screened a monoclonal antibody which possesses competitive binding site with rLZ-8, it also trigger catastrophic EGFR internalization. This result suggests that it is necessary to investigate the interface of EGFR and rLZ-8 complex. An internalization related epitope (S222/K269) was identified on the dimerization arm of EGFR extracellular domain (ECD). These results suggest vulnerability of HCC cells to catastrophic EGFR internalization that can be targeted by a novel epitope and point to the possible exploitation in the design of anti-EGFR therapeutic biologics for HCC therapy.
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Affiliation(s)
- Dianshuai Huang
- Institute of Frontier Medical Science, Jilin University, Changchun 130021, Jilin, China; (D.H.); (Z.L.); (S.Z.); (W.H.); (H.L.); (C.L.)
| | - Qingjie Fan
- Department of Biopharmacy, School of Pharmaceutical Sciences, Jilin University, Changchun 130021, Jilin, China;
| | - Zhiyi Liu
- Institute of Frontier Medical Science, Jilin University, Changchun 130021, Jilin, China; (D.H.); (Z.L.); (S.Z.); (W.H.); (H.L.); (C.L.)
| | - Shuqin Zhang
- Institute of Frontier Medical Science, Jilin University, Changchun 130021, Jilin, China; (D.H.); (Z.L.); (S.Z.); (W.H.); (H.L.); (C.L.)
| | - Wei Huang
- Institute of Frontier Medical Science, Jilin University, Changchun 130021, Jilin, China; (D.H.); (Z.L.); (S.Z.); (W.H.); (H.L.); (C.L.)
| | - Hongrui Li
- Institute of Frontier Medical Science, Jilin University, Changchun 130021, Jilin, China; (D.H.); (Z.L.); (S.Z.); (W.H.); (H.L.); (C.L.)
| | - Chongyang Liang
- Institute of Frontier Medical Science, Jilin University, Changchun 130021, Jilin, China; (D.H.); (Z.L.); (S.Z.); (W.H.); (H.L.); (C.L.)
| | - Fei Sun
- Institute of Frontier Medical Science, Jilin University, Changchun 130021, Jilin, China; (D.H.); (Z.L.); (S.Z.); (W.H.); (H.L.); (C.L.)
- Department of Biopharmacy, School of Pharmaceutical Sciences, Jilin University, Changchun 130021, Jilin, China;
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15
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Fan Q, Wang Q, Cai R, Yuan H, Xu M. The ubiquitin system: orchestrating cellular signals in non-small-cell lung cancer. Cell Mol Biol Lett 2020; 25:1. [PMID: 31988639 PMCID: PMC6966813 DOI: 10.1186/s11658-019-0193-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 11/25/2019] [Indexed: 02/07/2023] Open
Abstract
The ubiquitin system, known as a common feature in eukaryotes, participates in multiple cellular processes, such as signal transduction, cell-cycle progression, receptor trafficking and endocytosis, and even the immune response. In lung cancer, evidence has revealed that aberrant events in ubiquitin-mediated processes can cause a variety of pathological outcomes including tumorigenesis and metastasis. Likewise, ubiquitination on the core components contributing to the activity of cell signaling controls bio-signal turnover and cell final destination. Given this, inhibitors targeting the ubiquitin system have been developed for lung cancer therapies and have shown great prospects for clinical application. However, the exact biological effects and physiological role of the drugs used in lung cancer therapies are still not clearly elucidated, which might seriously impede the progress of treatment. In this work, we summarize current research advances in cell signal regulation processes mediated through the ubiquitin system during the development of lung cancer, with the hope of improving the therapeutic effects by means of aiming at efficient targets.
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Affiliation(s)
- Qiang Fan
- 1Department of Oncology, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 280 Mohe Road, Shanghai, China.,2Department of General Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 280 Mohe Road, Shanghai, China
| | - Qian Wang
- 1Department of Oncology, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 280 Mohe Road, Shanghai, China
| | - Renjie Cai
- 1Department of Oncology, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 280 Mohe Road, Shanghai, China.,2Department of General Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 280 Mohe Road, Shanghai, China
| | - Haihua Yuan
- 1Department of Oncology, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 280 Mohe Road, Shanghai, China
| | - Ming Xu
- 1Department of Oncology, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 280 Mohe Road, Shanghai, China
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16
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Iwamoto M, Saso W, Nishioka K, Ohashi H, Sugiyama R, Ryo A, Ohki M, Yun JH, Park SY, Ohshima T, Suzuki R, Aizaki H, Muramatsu M, Matano T, Iwami S, Sureau C, Wakita T, Watashi K. The machinery for endocytosis of epidermal growth factor receptor coordinates the transport of incoming hepatitis B virus to the endosomal network. J Biol Chem 2020. [DOI: 10.1016/s0021-9258(17)49936-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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17
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Rutkowska A, Stoczyńska-Fidelus E, Janik K, Włodarczyk A, Rieske P. EGFR vIII: An Oncogene with Ambiguous Role. JOURNAL OF ONCOLOGY 2019; 2019:1092587. [PMID: 32089685 PMCID: PMC7024087 DOI: 10.1155/2019/1092587] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 11/22/2019] [Indexed: 12/21/2022]
Abstract
Epidermal growth factor receptor variant III (EGFRvIII) seems to constitute the perfect therapeutic target for glioblastoma (GB), as it is specifically present on up to 28-30% of GB cells. In case of other tumor types, expression and possible role of this oncogene still remain controversial. In spite of EGFRvIII mechanism of action being crucial for the design of small active anticancer molecules and immunotherapies, i.e., CAR-T technology, it is yet to be precisely defined. EGFRvIII is known to be resistant to degradation, but it is still unclear whether it heterodimerizes with EGF-activated wild-type EGFR (EGFRWT) or homodimerizes (including covalent homodimerization). Constitutive kinase activity of this mutated receptor is relatively low, and some researchers even claim that a nuclear, but not a membrane function, is crucial for its activity. Based on the analyses of recurrent tumors that are often lacking EGFRvIII expression despite its initial presence in corresponding primary foci, this oncogene is suggested to play a marginal role during later stages of carcinogenesis, while even in primary tumors EGFRvIII expression is detected only in a small percentage of tumor cells, undermining the rationality of EGFRvIII-targeting therapies. On the other hand, EGFRvIII-positive cells are resistant to apoptosis, more invasive, and characterized with enhanced proliferation rate. Moreover, expression of this oncogenic receptor was also postulated to be a marker of cancer stem cells. Opinions regarding the role that EGFRvIII plays in tumorigenesis and for tumor aggressiveness are clearly contradictory and, therefore, it is crucial not only to determine its mechanism of action, but also to unambiguously define its role at early and advanced cancer stages.
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Affiliation(s)
- Adrianna Rutkowska
- Department of Tumor Biology, Medical University of Lodz, Zeligowskiego 7/9, 90-752 Lodz, Poland
| | - Ewelina Stoczyńska-Fidelus
- Department of Tumor Biology, Medical University of Lodz, Zeligowskiego 7/9, 90-752 Lodz, Poland
- Department of Research and Development, Celther Polska Ltd., Milionowa 23, 93-193 Lodz, Poland
- Department of Research and Development, Personather Ltd., Milionowa 23, 93-193 Lodz, Poland
| | - Karolina Janik
- Department of Tumor Biology, Medical University of Lodz, Zeligowskiego 7/9, 90-752 Lodz, Poland
| | - Aneta Włodarczyk
- Department of Tumor Biology, Medical University of Lodz, Zeligowskiego 7/9, 90-752 Lodz, Poland
| | - Piotr Rieske
- Department of Tumor Biology, Medical University of Lodz, Zeligowskiego 7/9, 90-752 Lodz, Poland
- Department of Research and Development, Celther Polska Ltd., Milionowa 23, 93-193 Lodz, Poland
- Department of Research and Development, Personather Ltd., Milionowa 23, 93-193 Lodz, Poland
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18
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Iwamoto M, Saso W, Nishioka K, Ohashi H, Sugiyama R, Ryo A, Ohki M, Yun JH, Park SY, Ohshima T, Suzuki R, Aizaki H, Muramatsu M, Matano T, Iwami S, Sureau C, Wakita T, Watashi K. The machinery for endocytosis of epidermal growth factor receptor coordinates the transport of incoming hepatitis B virus to the endosomal network. J Biol Chem 2019; 295:800-807. [PMID: 31836663 DOI: 10.1074/jbc.ac119.010366] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 12/10/2019] [Indexed: 12/27/2022] Open
Abstract
Sodium taurocholate cotransporting polypeptide (NTCP) is expressed at the surface of human hepatocytes and functions as an entry receptor of hepatitis B virus (HBV). Recently, we have reported that epidermal growth factor receptor (EGFR) is involved in NTCP-mediated viral internalization during the cell entry process. Here, we analyzed which function of EGFR is essential for mediating HBV internalization. In contrast to the reported crucial function of EGFR-downstream signaling for the entry of hepatitis C virus (HCV), blockade of EGFR-downstream signaling proteins, including mitogen-activated protein kinase (MAPK), phosphoinositide 3-kinase (PI3K), and signal transducer and activator of transcription (STAT), had no or only minor effects on HBV infection. Instead, deficiency of EGFR endocytosis resulting from either a deleterious mutation in EGFR or genetic knockdown of endocytosis adaptor molecules abrogated internalization of HBV via NTCP and prevented viral infection. EGFR activation triggered a time-dependent relocalization of HBV preS1 to the early and late endosomes and to lysosomes in concert with EGFR transport. Suppression of EGFR ubiquitination by site-directed mutagenesis or by knocking down two EGFR-sorting molecules, signal-transducing adaptor molecule (STAM) and lysosomal protein transmembrane 4β (LAPTM4B), suggested that EGFR transport to the late endosome is critical for efficient HBV infection. Cumulatively, these results support the idea that the EGFR endocytosis/sorting machinery drives the translocation of NTCP-bound HBV from the cell surface to the endosomal network, which eventually enables productive viral infection.
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Affiliation(s)
- Masashi Iwamoto
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.,Mathematical Biology Laboratory, Department of Biology, Faculty of Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - Wakana Saso
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.,AIDS Research Center, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.,The Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Kazane Nishioka
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.,Department of Applied Biological Science, Tokyo University of Science, Noda 278-8510, Japan
| | - Hirofumi Ohashi
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.,Department of Applied Biological Science, Tokyo University of Science, Noda 278-8510, Japan
| | - Ryuichi Sugiyama
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Akihide Ryo
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
| | - Mio Ohki
- Drug Design Laboratory, Yokohama City University Graduate School of Medical Life Science, Yokohama 230-0045, Japan
| | - Ji-Hye Yun
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, South Korea
| | - Sam-Yong Park
- Drug Design Laboratory, Yokohama City University Graduate School of Medical Life Science, Yokohama 230-0045, Japan
| | - Takayuki Ohshima
- Faculty of Pharmaceutical Science at Kagawa Campus, Tokushima Bunri University, Kagawa 769-2193, Japan
| | - Ryosuke Suzuki
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Hideki Aizaki
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Masamichi Muramatsu
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Tetsuro Matano
- AIDS Research Center, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.,The Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Shingo Iwami
- Mathematical Biology Laboratory, Department of Biology, Faculty of Sciences, Kyushu University, Fukuoka 812-8581, Japan.,Core Research for Evolutional Science and Technology (CREST) Japan Science and Technology Agency (JST), Saitama 332-0012, Japan.,MIRAI, Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Camille Sureau
- Laboratoire de Virologie Moléculaire, Institut National de la Transfusion Sanguine, Paris 75739, France
| | - Takaji Wakita
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Koichi Watashi
- Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan .,Department of Applied Biological Science, Tokyo University of Science, Noda 278-8510, Japan.,Core Research for Evolutional Science and Technology (CREST) Japan Science and Technology Agency (JST), Saitama 332-0012, Japan.,MIRAI, Japan Science and Technology Agency (JST), Saitama 332-0012, Japan.,Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
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19
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Memarzadeh K, Savage DJ, Bean AJ. Low UBE4B expression increases sensitivity of chemoresistant neuroblastoma cells to EGFR and STAT5 inhibition. Cancer Biol Ther 2019; 20:1416-1429. [PMID: 31475882 PMCID: PMC6804809 DOI: 10.1080/15384047.2019.1647049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 05/24/2019] [Accepted: 06/23/2019] [Indexed: 12/15/2022] Open
Abstract
Neuroblastoma is the most common malignancy in infants. Overexpression of the epidermal growth factor receptor (EGFR) in neuroblastoma tumors underlies resistance to chemotherapeutics. UBE4B, an E3/E4 ubiquitin ligase involved in EGFR degradation, is located on chromosome 1p36, a region in which loss of heterozygosity is observed in approximately one-third of neuroblastoma tumors and is correlated with poor prognosis. In chemoresistant neuroblastoma cells, depletion of UBE4B yielded significantly reduced cell proliferation and migration, and enhanced apoptosis in response to EGFR inhibitor, Cetuximab. We have previously shown that UBE4B levels are inversely correlated with EGFR levels in neuroblastoma tumors. We searched for additional targets of UBE4B that mediate cellular alterations associated with tumorogenesis in chemoresistant neuroblastoma cells depleted of UBE4B using reverse phase protein arrays. The expression of STAT5a, an effector protein downstream of EGFR, doubled in the absence of UBE4B, and verified by quantitative immunoblotting. Chemoresistant neuroblastoma cells were treated with SH-4-54, a STAT5 inhibitor, and observed insignificant effects on cell proliferation, migration, and apoptosis. However, SH-4-54 significantly enhanced the anti-proliferative and anti-migratory effects of Cetuximab in naïve SK-N-AS neuroblastoma cells. Interestingly, in UBE4B depleted SK-N-AS cells, SH-4-54 significantly potentiated the effect of Cetuximab rendering cells increasingly sensitive an otherwise minimally effective Cetuximab concentration. Thus, neuroblastoma cells with low UBE4B levels were significantly more sensitive to combined EGFR and STAT5 inhibition than parental cells. These findings may have potential therapeutic implications for patients with 1p36 chromosome LOH and low tumor UBE4B expression.
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Affiliation(s)
- Kimiya Memarzadeh
- Program in Neuroscience, University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - David J. Savage
- Program in Neuroscience, University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Andrew J. Bean
- Program in Neuroscience, University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
- Department of Neurobiology and Anatomy, McGovern Medical School, Houston, TX, USA
- Program in Neuroscience, Cell Biology and Biochemistry, University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
- Department of Pediatrics, University of Texas MD Anderson Cancer Center, Houston, TX, USA
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20
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Dubeaux G, Neveu J, Zelazny E, Vert G. Metal Sensing by the IRT1 Transporter-Receptor Orchestrates Its Own Degradation and Plant Metal Nutrition. Mol Cell 2019; 69:953-964.e5. [PMID: 29547723 DOI: 10.1016/j.molcel.2018.02.009] [Citation(s) in RCA: 181] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/22/2017] [Accepted: 02/05/2018] [Indexed: 12/21/2022]
Abstract
Plant roots forage the soil for iron, the concentration of which can be dramatically lower than those needed for growth. Soil iron uptake uses the broad metal spectrum IRT1 transporter that also transports zinc, manganese, cobalt, and cadmium. Sophisticated iron-dependent transcriptional regulatory mechanisms allow plants to tightly control the abundance of IRT1, ensuring optimal absorption of iron. Here, we uncover that IRT1 acts as a transporter and receptor (transceptor), directly sensing excess of its non-iron metal substrates in the cytoplasm, to regulate its own degradation. Direct metal binding to a histidine-rich stretch in IRT1 triggers its phosphorylation by the CIPK23 kinase and facilitates the subsequent recruitment of the IDF1 E3 ligase. CIPK23-driven phosphorylation and IDF1-mediated lysine-63 polyubiquitination are jointly required for efficient endosomal sorting and vacuolar degradation of IRT1. Thus, IRT1 directly senses elevated non-iron metal concentrations and integrates multiple substrate-dependent regulations to optimize iron uptake and protect plants from highly reactive metals.
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Affiliation(s)
- Guillaume Dubeaux
- Institute for Integrative Biology of the Cell (I2BC), CNRS/CEA/Univ. Paris Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Julie Neveu
- Institute for Integrative Biology of the Cell (I2BC), CNRS/CEA/Univ. Paris Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Enric Zelazny
- Institute for Integrative Biology of the Cell (I2BC), CNRS/CEA/Univ. Paris Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Grégory Vert
- Institute for Integrative Biology of the Cell (I2BC), CNRS/CEA/Univ. Paris Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette, France.
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21
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Zhang H, Han B, Lu H, Zhao Y, Chen X, Meng Q, Cao M, Cai L, Hu J. USP22 promotes resistance to EGFR-TKIs by preventing ubiquitination-mediated EGFR degradation in EGFR-mutant lung adenocarcinoma. Cancer Lett 2018; 433:186-198. [PMID: 29981430 DOI: 10.1016/j.canlet.2018.07.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 06/12/2018] [Accepted: 07/02/2018] [Indexed: 10/28/2022]
Abstract
As a newly discovered deubiquitinating enzyme, ubiquitin-specific protease 22 (USP22) is predictive of therapeutic outcomes in individual cancer patients. However, its clinical effects on malignancy and its roles in conferring resistance to EGFR-TKIs (epidermal growth factor receptor-tyrosine kinase inhibitors) in lung adenocarcinoma (ADC) remain largely unknown. Here, we showed that USP22 promotes cell proliferation, migration and invasion, and contributes to resistance to EGFR-TKIs in EGFR mutant lung ADC cells. Mechanistically, USP22 deubiquitinates EGFR localized on late endosomes, prevents ubiquitination mediated EGFR degradation and enhances recycling of EGFR after EGF stimulation. Additionally, USP22 sustained the activation of multiple EGFR downstream signaling pathways, including STAT3, AKT/mTOR and MEK/ERK pathways, in lung ADC cell lines H1975 and PC9. Furthermore, USP22 stabilizes EGFR protein expression, which correlates with USP22 expression in EGFR-mutant lung ADC patient samples. We are the first to demonstrate that silencing USP22 counteracts EGFR-TKIs resistance both in vitro and in vivo. We propose USP22 as a potential therapeutic target for EGFR-TKIs-resistant lung ADC.
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Affiliation(s)
- Huijuan Zhang
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Bing Han
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Hailing Lu
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Yanbin Zhao
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Xuesong Chen
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Qingwei Meng
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Mengru Cao
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Li Cai
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China.
| | - Jing Hu
- The 4th Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China.
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22
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Cheng X, Zheng J, Li G, Göbel V, Zhang H. Degradation for better survival? Role of ubiquitination in epithelial morphogenesis. Biol Rev Camb Philos Soc 2018; 93:1438-1460. [PMID: 29493067 DOI: 10.1111/brv.12404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/31/2018] [Accepted: 02/05/2018] [Indexed: 02/06/2023]
Abstract
As a prevalent post-translational modification, ubiquitination is essential for many developmental processes. Once covalently attached to the small and conserved polypeptide ubiquitin (Ub), a substrate protein can be directed to perform specific biological functions via its Ub-modified form. Three sequential catalytic reactions contribute to this process, among which E3 ligases serve to identify target substrates and promote the activated Ub to conjugate to substrate proteins. Ubiquitination has great plasticity, with diverse numbers, topologies and modifications of Ub chains conjugated at different substrate residues adding a layer of complexity that facilitates a huge range of cellular functions. Herein, we highlight key advances in the understanding of ubiquitination in epithelial morphogenesis, with an emphasis on the latest insights into its roles in cellular events involved in polarized epithelial tissue, including cell adhesion, asymmetric localization of polarity determinants and cytoskeletal organization. In addition, the physiological roles of ubiquitination are discussed for typical examples of epithelial morphogenesis, such as lung branching, vascular development and synaptic formation and plasticity. Our increased understanding of ubiquitination in epithelial morphogenesis may provide novel insights into the molecular mechanisms underlying epithelial regeneration and maintenance.
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Affiliation(s)
- Xiaoxiang Cheng
- Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Jun Zheng
- Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Gang Li
- Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Verena Göbel
- Department of Pediatrics, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114,, U.S.A
| | - Hongjie Zhang
- Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
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23
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Romero-Barrios N, Vert G. Proteasome-independent functions of lysine-63 polyubiquitination in plants. THE NEW PHYTOLOGIST 2018; 217:995-1011. [PMID: 29194634 DOI: 10.1111/nph.14915] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 10/12/2017] [Indexed: 05/21/2023]
Abstract
Contents Summary 995 I. Introduction 995 II. The plant Ub machinery 996 III. From Ub to Ub linkage types in plants 997 IV. Increasing analytical resolution for K63 polyUb in plants 998 V. How to build K63 polyUb chains? 998 VI. Cellular roles of K63 polyUb in plants 999 VII. Physiological roles of K63 polyUb in plants 1004 VIII. Future perspectives: towards the next level of the Ub code 1006 Acknowledgements 1006 References 1007 SUMMARY: Ubiquitination is a post-translational modification essential for the regulation of eukaryotic proteins, having an impact on protein fate, function, localization or activity. What originally appeared to be a simple system to regulate protein turnover by the 26S proteasome is now known to be the most intricate regulatory process cells have evolved. Ubiquitin can be arranged in countless chain assemblies, triggering various cellular outcomes. Polyubiquitin chains using lysine-63 from ubiquitin represent the second most abundant type of ubiquitin modification. Recent studies have exposed their common function in proteasome-independent functions in non-plant model organisms. The existence of lysine-63 polyubiquitination in plants is, however, only just emerging. In this review, we discuss the recent advances on the characterization of ubiquitin chains and the molecular mechanisms driving the formation of lysine-63-linked ubiquitin modifications. We provide an overview of the roles associated with lysine-63 polyubiquitination in plant cells in the light of what is known in non-plant models. Finally, we review the crucial roles of lysine-63 polyubiquitin-dependent processes in plant growth, development and responses to environmental conditions.
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Affiliation(s)
- Natali Romero-Barrios
- Institute for Integrative Biology of the Cell (I2BC), CNRS/CEA/Univ. Paris Sud, Université Paris-Saclay, Gif-sur-Yvette, 91198, France
| | - Grégory Vert
- Institute for Integrative Biology of the Cell (I2BC), CNRS/CEA/Univ. Paris Sud, Université Paris-Saclay, Gif-sur-Yvette, 91198, France
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24
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Stec W, Rosiak K, Treda C, Smolarz M, Peciak J, Pacholczyk M, Lenart A, Grzela D, Stoczynska-Fidelus E, Rieske P. Cyclic trans-phosphorylation in a homodimer as the predominant mechanism of EGFRvIII action and regulation. Oncotarget 2018; 9:8560-8572. [PMID: 29492217 PMCID: PMC5823601 DOI: 10.18632/oncotarget.24058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 12/29/2017] [Indexed: 11/25/2022] Open
Abstract
Despite intensive research no therapies targeted against the oncogenic EGFRvIII are present in the clinic. One of the reasons is the elusive nature of the molecular structure and activity of the truncated receptor. The recent publications indicate the EGF-bound wild-type EGFR to trans-phosphorylate the EGFRvIII initiating aberrant signaling cascade. The elevated stability of the mutant receptor contributes towards oncogenic potential, preventing termination of signaling by receptor degradation. Here, we show that inhibition of phosphatases leads to a marked increase in phosphorylation of wild-type EGFR and EGFRvIII, indicating that both undergo cyclic rounds of phosphorylation and dephosphorylation on all investigated tyrosine residues, including Tyr1045. Still, we observe elevated stability of the mutant receptor, suggesting phosphorylation as insufficient to cause degradation. Hyperphosphorylation of EGFRvIII was hindered only by EGFR tyrosine kinase inhibitors. Co-immunoprecipitation as well as semi-native Western blotting structural analyses together with functional investigation of EGFRvIII's phosphorylation following depletion of wild-type EGFR by shRNA or EGF-mediated degradation indicated homodimerization as the predominant quaternary structure of the mutant receptor. Dimers were observed only under non-reducing conditions, suggesting that homodimerization is mediated by covalent bonds. Previous reports indicated cysteine at position 16 to mediate covalent homodimerization. Upon its substitution to serine, we have observed impaired formation of dimers and lower phosphorylation levels of the mutated oncogene. Based on the obtained results we propose that EGFRvIII is predominantly regulated dynamically by phosphatases that counteract the process of trans-phosphorylation occurring within the homodimers.
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Affiliation(s)
- Wojciech Stec
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland
| | - Kamila Rosiak
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland.,Department of Tumor Biology, Medical University of Lodz, Lodz, Poland
| | - Cezary Treda
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland.,Department of Tumor Biology, Medical University of Lodz, Lodz, Poland
| | - Maciej Smolarz
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland
| | - Joanna Peciak
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland.,Department of Tumor Biology, Medical University of Lodz, Lodz, Poland
| | - Marcin Pacholczyk
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland.,Institute of Automatic Control, Silesian University of Technology, Gliwice, Poland
| | - Anna Lenart
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland
| | - Dawid Grzela
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland
| | - Ewelina Stoczynska-Fidelus
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland.,Department of Tumor Biology, Medical University of Lodz, Lodz, Poland
| | - Piotr Rieske
- Research and Development Unit, Celther Polska Ltd., Lodz, Poland.,Department of Tumor Biology, Medical University of Lodz, Lodz, Poland.,Research and Development Unit, Personather Ltd., Lodz, Poland
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Endocytic Trafficking of the Notch Receptor. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1066:99-122. [DOI: 10.1007/978-3-319-89512-3_6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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26
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Kanner SA, Morgenstern T, Colecraft HM. Sculpting ion channel functional expression with engineered ubiquitin ligases. eLife 2017; 6:29744. [PMID: 29256394 PMCID: PMC5764571 DOI: 10.7554/elife.29744] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 12/13/2017] [Indexed: 12/18/2022] Open
Abstract
The functional repertoire of surface ion channels is sustained by dynamic processes of trafficking, sorting, and degradation. Dysregulation of these processes underlies diverse ion channelopathies including cardiac arrhythmias and cystic fibrosis. Ubiquitination powerfully regulates multiple steps in the channel lifecycle, yet basic mechanistic understanding is confounded by promiscuity among E3 ligase/substrate interactions and ubiquitin code complexity. Here we targeted the catalytic domain of E3 ligase, CHIP, to YFP-tagged KCNQ1 ± KCNE1 subunits with a GFP-nanobody to selectively manipulate this channel complex in heterologous cells and adult rat cardiomyocytes. Engineered CHIP enhanced KCNQ1 ubiquitination, eliminated KCNQ1 surface-density, and abolished reconstituted K+ currents without affecting protein expression. A chemo-genetic variation enabling chemical control of ubiquitination revealed KCNQ1 surface-density declined with a ~ 3.5 hr t1/2 by impaired forward trafficking. The results illustrate utility of engineered E3 ligases to elucidate mechanisms underlying ubiquitin regulation of membrane proteins, and to achieve effective post-translational functional knockdown of ion channels. Cells are surrounded by a membrane that separates the outside of the cell from its inside. Proteins called ion channels are embedded within this membrane and allow charged ions to move in and out of the cell. The movement of ions generates electrical currents that are essential for many processes that keep us alive, including our heartbeat and the activity within our brain. Like many other proteins, newly made ion channels undergo several steps before they mature and become active. Cells destroy any proteins that do not mature properly, as well as those that become damaged or are simply no longer needed. A small protein called ubiquitin helps to mark such unwanted proteins for destruction. Enzymes known as E3 ligases attach ubiquitin to target proteins in a process known as ubiquitination. This process regulates both the quality and amount of proteins within cells. To understand the role of a particular protein, it is often necessary to remove it from the cell and then examine the consequences. In the past, researchers have harnessed the ubiquitin system to remove many kinds of proteins, but this approach had not previously been used to target an ion channel. Now, Kanner et al. set out to selectively eliminate ion channels via targeted ubiquitination. The experiments showed that previous approaches that could destroy proteins within the cell were not effective against ion channels. Kanner et al. then engineered a particular E3 ligase so that it could selectively attach ubiquitin to the desired ion channels. This approach successfully prevented the channels from reaching the cell membrane, thereby silencing the electrical currents that they normally generate. Additionally, a new tool was developed to stop ion channels in their tracks, essentially with a flip of a chemical switch. Kanner et al. then used this approach to manipulate ion channels in a highly controlled manner, within their normal environment of heart muscle cells. These new approaches form a toolset that scientists can now exploit to study diverse ion channels. In the future, the toolkit could potentially be used to develop treatments for disorders such as epilepsy, chronic pain, and irregular heartbeats, where too many channels are active or present at the cell membrane.
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Affiliation(s)
- Scott A Kanner
- Doctoral Program in Neurobiology and Behavior, Columbia University College of Physicians and Surgeons, New York, United States
| | - Travis Morgenstern
- Department of Pharmacology, Columbia University College of Physicians and Surgeons, New York, United States
| | - Henry M Colecraft
- Doctoral Program in Neurobiology and Behavior, Columbia University College of Physicians and Surgeons, New York, United States.,Department of Pharmacology, Columbia University College of Physicians and Surgeons, New York, United States.,Department of Physiology and Cellular Biophysics, Columbia University College of Physicians and Surgeons, New York, United States
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27
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Widagdo J, Guntupalli S, Jang SE, Anggono V. Regulation of AMPA Receptor Trafficking by Protein Ubiquitination. Front Mol Neurosci 2017; 10:347. [PMID: 29123470 PMCID: PMC5662755 DOI: 10.3389/fnmol.2017.00347] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 10/12/2017] [Indexed: 11/27/2022] Open
Abstract
The molecular mechanisms underlying plastic changes in the strength and connectivity of excitatory synapses have been studied extensively for the past few decades and remain the most attractive cellular models of learning and memory. One of the major mechanisms that regulate synaptic plasticity is the dynamic adjustment of the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type glutamate receptor content on the neuronal plasma membrane. The expression of surface AMPA receptors (AMPARs) is controlled by the delicate balance between the biosynthesis, dendritic transport, exocytosis, endocytosis, recycling and degradation of the receptors. These processes are dynamically regulated by AMPAR interacting proteins as well as by various post-translational modifications that occur on their cytoplasmic domains. In the last few years, protein ubiquitination has emerged as a major regulator of AMPAR intracellular trafficking. Dysregulation of AMPAR ubiquitination has also been implicated in the pathophysiology of Alzheimer’s disease. Here we review recent advances in the field and provide insights into the role of protein ubiquitination in regulating AMPAR membrane trafficking and function. We also discuss how aberrant ubiquitination of AMPARs contributes to the pathogenesis of various neurological disorders, including Alzheimer’s disease, chronic stress and epilepsy.
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Affiliation(s)
- Jocelyn Widagdo
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Sumasri Guntupalli
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Se E Jang
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Victor Anggono
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
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28
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Abstract
Newly synthesized transmembrane proteins undergo a series of steps to ensure that only the required amount of correctly folded protein is localized to the membrane. The regulation of protein quality and its abundance at the membrane are often controlled by ubiquitination, a multistep enzymatic process that results in the attachment of ubiquitin, or chains of ubiquitin to the target protein. Protein ubiquitination acts as a signal for sorting, trafficking, and the removal of membrane proteins via endocytosis, a process through which multiple ubiquitin ligases are known to specifically regulate the functions of a number of ion channels, transporters, and signaling receptors. Endocytic removal of these proteins through ubiquitin-dependent endocytosis provides a way to rapidly downregulate the physiological outcomes, and defects in such controls are directly linked to human pathologies. Recent evidence suggests that ubiquitination is also involved in the shedding of membranes and associated proteins as extracellular vesicles, thereby not only controlling the cell surface levels of some membrane proteins, but also their potential transport to neighboring cells. In this review, we summarize the mechanisms and functions of ubiquitination of membrane proteins and provide specific examples of ubiquitin-dependent regulation of membrane proteins.
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Affiliation(s)
- Natalie Foot
- Centre for Cancer Biology, University of South Australia, Adelaide, Australia
| | - Tanya Henshall
- Centre for Cancer Biology, University of South Australia, Adelaide, Australia
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia, Adelaide, Australia
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29
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Mincione G, Di Marcantonio MC, Tarantelli C, Savino L, Ponti D, Marchisio M, Lanuti P, Sancilio S, Calogero A, Di Pietro R, Muraro R. Identification of the zinc finger 216 (ZNF216) in human carcinoma cells: a potential regulator of EGFR activity. Oncotarget 2016; 7:74947-74965. [PMID: 27732953 PMCID: PMC5342714 DOI: 10.18632/oncotarget.12509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 09/25/2016] [Indexed: 02/05/2023] Open
Abstract
Epidermal Growth Factor Receptor (EGFR), a member of the ErbB family of receptor tyrosine kinase (RTK) proteins, is aberrantly expressed or deregulated in tumors and plays pivotal roles in cancer onset and metastatic progression. ZNF216 gene has been identified as one of Immediate Early Genes (IEGs) induced by RTKs. Overexpression of ZNF216 protein sensitizes 293 cell line to TNF-α induced apoptosis. However, ZNF216 overexpression has been reported in medulloblastomas and metastatic nasopharyngeal carcinomas. Thus, the role of this protein is still not clearly understood. In this study, the inverse correlation between EGFR and ZNF216 expression was confirmed in various human cancer cell lines differently expressing EGFR. EGF treatment of NIH3T3 cells overexpressing both EGFR and ZNF216 (NIH3T3-EGFR/ZNF216), induced a long lasting activation of EGFR in the cytosolic fraction and an accumulation of phosphorylated EGFR (pEGFR) more in the nuclear than in the cytosolic fraction compared to NIH3T3-EGFR cells. Moreover, EGF was able to stimulate an increased expression of ZNF216 in the cytosolic compartment and its nuclear translocation in a time-dependent manner in NIH3T3-EGFR/ZNF216. A similar trend was observed in A431 cells endogenously expressing the EGFR and transfected with Znf216. The increased levels of pEGFR and ZNF216 in the nuclear fraction of NIH3T3-EGFR/ZNF216 cells were paralleled by increased levels of phospho-MAPK and phospho-Akt. Surprisingly, EGF treatment of NIH3T3-EGFR/ZNF216 cells induced a significant increase of apoptosis thus indicating that ZNF216 could sensitize cells to EGF-induced apoptosis and suggesting that it may be involved in the regulation and effects of EGFR signaling.
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Affiliation(s)
- Gabriella Mincione
- 1 Department of Medical, Oral and Biotechnological Sciences, University “G. d'Annunzio” Chieti-Pescara, Italy
- 2 Center for Aging Science and Translational Medicine (CeSI-MeT), Chieti, Italy
| | | | - Chiara Tarantelli
- 1 Department of Medical, Oral and Biotechnological Sciences, University “G. d'Annunzio” Chieti-Pescara, Italy
- 6 Current Address: Lymphoma and Genomics Research Program, IOR Institute of Oncology Research, Bellinzona, Switzerland
| | - Luca Savino
- 1 Department of Medical, Oral and Biotechnological Sciences, University “G. d'Annunzio” Chieti-Pescara, Italy
| | - Donatella Ponti
- 3 Department of Medico-Surgical Sciences and Biotechnologies, University of Rome Sapienza, Latina, Italy
| | - Marco Marchisio
- 2 Center for Aging Science and Translational Medicine (CeSI-MeT), Chieti, Italy
- 4 Department of Medicine and Ageing Sciences, University “G. d'Annunzio”, Chieti-Pescara, Italy
| | - Paola Lanuti
- 2 Center for Aging Science and Translational Medicine (CeSI-MeT), Chieti, Italy
- 4 Department of Medicine and Ageing Sciences, University “G. d'Annunzio”, Chieti-Pescara, Italy
| | - Silvia Sancilio
- 5 Department of Pharmacy, University “G. d'Annunzio”, Chieti-Pescara, Italy
| | - Antonella Calogero
- 3 Department of Medico-Surgical Sciences and Biotechnologies, University of Rome Sapienza, Latina, Italy
| | - Roberta Di Pietro
- 4 Department of Medicine and Ageing Sciences, University “G. d'Annunzio”, Chieti-Pescara, Italy
| | - Raffaella Muraro
- 1 Department of Medical, Oral and Biotechnological Sciences, University “G. d'Annunzio” Chieti-Pescara, Italy
- 2 Center for Aging Science and Translational Medicine (CeSI-MeT), Chieti, Italy
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30
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Savio MG, Wollscheid N, Cavallaro E, Algisi V, Di Fiore PP, Sigismund S, Maspero E, Polo S. USP9X Controls EGFR Fate by Deubiquitinating the Endocytic Adaptor Eps15. Curr Biol 2016; 26:173-183. [PMID: 26748853 DOI: 10.1016/j.cub.2015.11.050] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 10/16/2015] [Accepted: 11/20/2015] [Indexed: 01/16/2023]
Abstract
Following activation by its cognate ligand(s), the epidermal growth factor receptor (EGFR) is rapidly routed to the lysosome for degradation in a ubiquitination-dependent fashion. This pathway represents the major mechanism of long-term attenuation of EGFR signaling, and its deregulation is a significant feature in different types of cancers. Here we demonstrate, through a systematic RNAi-based approach, that several deubiquitinating (DUB) enzymes extend or decrease EGFR half-life upon EGF stimulation. We focus on USP9X, whose depletion severely affects EGFR turnover, interfering with its internalization and trafficking. We identify the endocytic protein Eps15 as one of the critical substrates of USP9X, and we map the Eps15 ubiquitination sites. We found that Eps15 monoubiquitination occurs already at minimal dose of EGF stimulation and is essential for EGFR internalization. Overall, our findings identify USP9X as a novel regulator of EGFR endocytosis and suggest a model whereby cycles of ubiquitination and deubiquitination events on endocytic accessory proteins may regulate the internalization and trafficking of the EGFR toward the lysosomes.
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Affiliation(s)
- Michol Giovanna Savio
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Via Adamello 16, 20139 Milan, Italy; DIPO, Dipartimento di Oncologia ed Emato-Oncologia, Università degli Studi di Milano, Via di Rudinì 8, 20122 Milan, Italy
| | - Nadine Wollscheid
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Via Adamello 16, 20139 Milan, Italy
| | - Elena Cavallaro
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Via Adamello 16, 20139 Milan, Italy
| | - Veronica Algisi
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Via Adamello 16, 20139 Milan, Italy
| | - Pier Paolo Di Fiore
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Via Adamello 16, 20139 Milan, Italy; DIPO, Dipartimento di Oncologia ed Emato-Oncologia, Università degli Studi di Milano, Via di Rudinì 8, 20122 Milan, Italy; IEO, Istituto Europeo di Oncologia, Via Ripamonti 435, 20141 Milan, Italy
| | - Sara Sigismund
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Via Adamello 16, 20139 Milan, Italy
| | - Elena Maspero
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Via Adamello 16, 20139 Milan, Italy
| | - Simona Polo
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Via Adamello 16, 20139 Milan, Italy; DIPO, Dipartimento di Oncologia ed Emato-Oncologia, Università degli Studi di Milano, Via di Rudinì 8, 20122 Milan, Italy.
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31
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Smith G, Tomlinson D, Harrison M, Ponnambalam S. Chapter Eight - Ubiquitin-Mediated Regulation of Cellular Responses to Vascular Endothelial Growth Factors. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2016; 141:313-38. [DOI: 10.1016/bs.pmbts.2016.02.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Abstract
Different biochemical techniques are well established to investigate target's ubiquitination in mammals without overexpressing a tagged version of ubiquitin (Ub). The simplest and more direct approach is to immunoprecipitate (IP) your target protein from cell lysate (stimulated and/or properly treated), followed by western blot analysis utilizing specific antibodies against Ub (see Subheading 3.1). This approach requires a good antibody against the target working in IP; alternatively, one could express a tagged version of the protein, possibly at the endogenous level. Another approach consists in IP ubiquitinated proteins from total cell lysate followed by detection with the antibody against the protein of interest. This second method relies on the availability of specific and very efficient antibodies against Ub (see Subheading 3.2). A more quantitative approach is the DELFIA assay (Perkin Elmer), an ELISA-based assay, which allows comparing more samples and conditions (see Subheading 3.3). Cross-validation with more than one approach is usually recommended in order to prove that your protein is modified by ubiquitin.Here we will use the EGFR as model system but protocols can be easily modified according to the protein of interest.
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Chapter Six - The Ubiquitin Network in the Control of EGFR Endocytosis and Signaling. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2016; 141:225-76. [DOI: 10.1016/bs.pmbts.2016.03.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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34
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Goo MS, Scudder SL, Patrick GN. Ubiquitin-dependent trafficking and turnover of ionotropic glutamate receptors. Front Mol Neurosci 2015; 8:60. [PMID: 26528125 PMCID: PMC4607782 DOI: 10.3389/fnmol.2015.00060] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 09/22/2015] [Indexed: 12/19/2022] Open
Abstract
Changes in synaptic strength underlie the basis of learning and memory and are controlled, in part, by the insertion or removal of AMPA-type glutamate receptors at the postsynaptic membrane of excitatory synapses. Once internalized, these receptors may be recycled back to the plasma membrane by subunit-specific interactions with other proteins or by post-translational modifications such as phosphorylation. Alternatively, these receptors may be targeted for destruction by multiple degradation pathways in the cell. Ubiquitination, another post-translational modification, has recently emerged as a key signal that regulates the recycling and trafficking of glutamate receptors. In this review, we will discuss recent findings on the role of ubiquitination in the trafficking and turnover of ionotropic glutamate receptors and plasticity of excitatory synapses.
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Affiliation(s)
- Marisa S Goo
- Section of Neurobiology, Division of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Samantha L Scudder
- Section of Neurobiology, Division of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Gentry N Patrick
- Section of Neurobiology, Division of Biological Sciences, University of California San Diego, La Jolla, CA, USA
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Fortian A, Dionne LK, Hong SH, Kim W, Gygi SP, Watkins SC, Sorkin A. Endocytosis of Ubiquitylation-Deficient EGFR Mutants via Clathrin-Coated Pits is Mediated by Ubiquitylation. Traffic 2015; 16:1137-54. [PMID: 26251007 DOI: 10.1111/tra.12314] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 08/03/2015] [Accepted: 08/03/2015] [Indexed: 12/11/2022]
Abstract
Signaling by epidermal growth factor receptor (EGFR) is controlled by endocytosis. However, mechanisms of EGFR endocytosis remain poorly understood. Here, we found that the EGFR mutant lacking known ubiquitylation, acetylation and clathrin adaptor AP-2-binding sites (21KRΔAP2) was internalized at relatively high rates via the clathrin-dependent pathway in human duodenal adenocarcinoma HuTu-80 cells. RNA interference analysis revealed that this residual internalization is strongly inhibited by depletion of Grb2 and the E2 ubiquitin-conjugating enzyme UbcH5b/c, and partially affected by depletion of the E3 ubiquitin ligase Cbl and ubiquitin-binding adaptors, indicating that an ubiquitylation process is involved. Several new ubiquitin conjugation sites were identified by mass spectrometry in the 21KRΔAP2 mutant, suggesting that cryptic ubiquitylation may mediate endocytosis of this mutant. Total internal reflection fluorescence microscopy imaging of HuTu-80 cells transfected with labeled ubiquitin adaptor epsin1 demonstrated that the ubiquitylation-deficient EGFR mutant was endocytosed through a limited population of epsin-enriched clathrin-coated pits (CCPs), although with a prolonged CCP lifetime. Native EGFR was recruited with the same efficiency into CCPs containing either AP-2 or epsin1 that were tagged with fluorescent proteins by genome editing of MDA-MD-231 cells. We propose that two redundant mechanisms, ubiquitylation and interaction with AP-2, contribute to EGFR endocytosis via CCPs in a stochastic fashion.
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Affiliation(s)
- Arola Fortian
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA,, USA
| | - Lai K Dionne
- Department of Pharmacology, University of Colorado Anschutz Medical Center, Aurora, CO,, USA
| | - Sun H Hong
- Department of Molecular and Cell Biology, University of California at Berkeley, Berkeley, CA,, USA
| | - Woong Kim
- Department of Cell Biology, University of Harvard School of Medicine, Boston, MA,, USA
| | - Steven P Gygi
- Department of Cell Biology, University of Harvard School of Medicine, Boston, MA,, USA
| | - Simon C Watkins
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA,, USA
| | - Alexander Sorkin
- Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA,, USA
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Igloi Z, Kazlauskas A, Saksela K, Macdonald A, Mankouri J, Harris M. Hepatitis C virus NS5A protein blocks epidermal growth factor receptor degradation via a proline motif- dependent interaction. J Gen Virol 2015; 96:2133-2144. [PMID: 25872741 PMCID: PMC4681064 DOI: 10.1099/vir.0.000145] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Hepatitis C virus (HCV) establishes a persistent infection that in many cases leads to cirrhosis and hepatocellular carcinoma. The non-structural 5A protein (NS5A) has been implicated in this process as it contains a C-terminal polyproline motif (termed P2) that binds to Src homology 3 (SH3) domains to regulate cellular signalling and trafficking pathways. We have shown previously that NS5A impaired epidermal growth factor (EGF) receptor (EGFR) endocytosis, thereby inhibiting EGF-stimulated EGFR degradation by a mechanism that remained unclear. As EGFR has been implicated in HCV cell entry and trafficking of the receptor involves several SH3-domain containing proteins, we investigated in more detail the mechanisms by which NS5A perturbs EGFR trafficking. We demonstrated that the P2 motif was required for the NS5A-mediated disruption to EGFR trafficking. We further demonstrated that the P2 motif was required for an interaction between NS5A and CMS, a homologue of CIN85 that has previously been implicated in EGFR endocytosis. We provided evidence that CMS was involved in the NS5A-mediated perturbation of EGFR trafficking. We also showed that NS5A effected a loss of EGFR ubiquitination in a P2-motif-dependent fashion. These data provide clues to the mechanism by which NS5A regulates the trafficking of a key cellular receptor and demonstrate for the first time the ability of NS5A to regulate host cell ubiquitination pathways.
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Affiliation(s)
- Zsofia Igloi
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Arunas Kazlauskas
- Department of Virology, Haartman Institute, University of Helsinki and Helsinki University Central Hospital, Helsinki 00014, Finland
| | - Kalle Saksela
- Department of Virology, Haartman Institute, University of Helsinki and Helsinki University Central Hospital, Helsinki 00014, Finland
| | - Andrew Macdonald
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Jamel Mankouri
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Mark Harris
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
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Widagdo J, Chai YJ, Ridder MC, Chau YQ, Johnson RC, Sah P, Huganir RL, Anggono V. Activity-Dependent Ubiquitination of GluA1 and GluA2 Regulates AMPA Receptor Intracellular Sorting and Degradation. Cell Rep 2015; 10:783-795. [PMID: 25660027 PMCID: PMC4524782 DOI: 10.1016/j.celrep.2015.01.015] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 12/02/2014] [Accepted: 01/05/2015] [Indexed: 11/18/2022] Open
Abstract
AMPA receptors (AMPARs) have recently been shown to undergo post-translational ubiquitination in mammalian neurons. However, the underlying molecular mechanisms are poorly understood and remain controversial. Here, we report that all four AMPAR subunits (GluA1–4) are rapidly ubiquitinated upon brief application of AMPA or bicuculline in cultured neurons. This process is Ca2+ dependent and requires the activity of L-type voltage-gated Ca2+ channels and Ca2+/calmodulin-dependent kinase II. The ubiquitination of all subunits occurs exclusively on AMPARs located on the plasma membrane post-endocytosis. The sites of ubiquitination were mapped to Lys-868 in GluA1 and Lys-870/Lys-882 in GluA2 C-terminals. Mutation of these lysines did not affect basal surface expression or AMPA-induced internalization of GluA1 and GluA2 subunits. Instead, it reduced the intracellular trafficking of AMPARs to the late endosomes and thus protein degradation. These data indicate that ubiquitination is an important regulatory signal for controlling AMPAR function, which may be crucial for synaptic plasticity.
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Affiliation(s)
- Jocelyn Widagdo
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Ye Jin Chai
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia; Clem Jones Centre for Ageing Dementia Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Margreet C Ridder
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Yu Qian Chau
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia; Clem Jones Centre for Ageing Dementia Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Richard C Johnson
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Pankaj Sah
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Richard L Huganir
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
| | - Victor Anggono
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia; Clem Jones Centre for Ageing Dementia Research, The University of Queensland, Brisbane, QLD 4072, Australia.
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Martins S, Dohmann EMN, Cayrel A, Johnson A, Fischer W, Pojer F, Satiat-Jeunemaître B, Jaillais Y, Chory J, Geldner N, Vert G. Internalization and vacuolar targeting of the brassinosteroid hormone receptor BRI1 are regulated by ubiquitination. Nat Commun 2015; 6:6151. [PMID: 25608221 DOI: 10.1038/ncomms7151] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 12/15/2014] [Indexed: 01/09/2023] Open
Abstract
Brassinosteroids are plant steroid hormones that control many aspects of plant growth and development, and are perceived at the cell surface by the plasma membrane-localized receptor kinase BRI1. Here we show that BRI1 is post-translationally modified by K63 polyubiquitin chains in vivo. Using both artificial ubiquitination of BRI1 and generation of an ubiquitination-defective BRI1 mutant form, we demonstrate that ubiquitination promotes BRI1 internalization from the cell surface and is essential for its recognition at the trans-Golgi network/early endosomes (TGN/EE) for vacuolar targeting. Finally, we demonstrate that the control of BRI1 protein dynamics by ubiquitination is an important control mechanism for brassinosteroid responses in plants. Altogether, our results identify ubiquitination and K63-linked polyubiquitin chain formation as a dual targeting signal for BRI1 internalization and sorting along the endocytic pathway, and highlight its role in hormonally controlled plant development.
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Affiliation(s)
- Sara Martins
- 1] Institute for Integrative Biology of the Cell (I2BC), CNRS, CEA, Paris-Sud University, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France [2] Institut des Sciences du Végétal, Unité Propre de Recherche 2355, Centre National de la Recherche Scientifique, Saclay Plant Sciences, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Esther M N Dohmann
- Department of Plant Molecular Biology, University of Lausanne, UNIL-Sorge, 1015 Lausanne, Switzerland
| | - Anne Cayrel
- 1] Institute for Integrative Biology of the Cell (I2BC), CNRS, CEA, Paris-Sud University, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France [2] Institut des Sciences du Végétal, Unité Propre de Recherche 2355, Centre National de la Recherche Scientifique, Saclay Plant Sciences, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Alexander Johnson
- 1] Institute for Integrative Biology of the Cell (I2BC), CNRS, CEA, Paris-Sud University, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France [2] Institut des Sciences du Végétal, Unité Propre de Recherche 2355, Centre National de la Recherche Scientifique, Saclay Plant Sciences, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Wolfgang Fischer
- The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Florence Pojer
- Protein Crystallography Core Facility, Ecole Polytechnique Fédérale de Lausanne, SV 3827 Station 19, 1015 Lausanne, Switzerland
| | - Béatrice Satiat-Jeunemaître
- 1] Institute for Integrative Biology of the Cell (I2BC), CNRS, CEA, Paris-Sud University, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France [2] Institut des Sciences du Végétal, Unité Propre de Recherche 2355, Centre National de la Recherche Scientifique, Saclay Plant Sciences, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Yvon Jaillais
- Laboratoire de Reproduction et Développement des Plantes, INRA, CNRS, ENS Lyon, Université de Lyon, 46 allée d'Italie, 69364 Lyon 07, France
| | - Joanne Chory
- 1] The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, California 92037, USA [2] Howard Hughes Medical Institute, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, California 92037, USA
| | - Niko Geldner
- Department of Plant Molecular Biology, University of Lausanne, UNIL-Sorge, 1015 Lausanne, Switzerland
| | - Grégory Vert
- 1] Institute for Integrative Biology of the Cell (I2BC), CNRS, CEA, Paris-Sud University, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France [2] Institut des Sciences du Végétal, Unité Propre de Recherche 2355, Centre National de la Recherche Scientifique, Saclay Plant Sciences, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
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Erpapazoglou Z, Walker O, Haguenauer-Tsapis R. Versatile roles of k63-linked ubiquitin chains in trafficking. Cells 2014; 3:1027-88. [PMID: 25396681 PMCID: PMC4276913 DOI: 10.3390/cells3041027] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 10/14/2014] [Accepted: 10/21/2014] [Indexed: 12/11/2022] Open
Abstract
Modification by Lys63-linked ubiquitin (UbK63) chains is the second most abundant form of ubiquitylation. In addition to their role in DNA repair or kinase activation, UbK63 chains interfere with multiple steps of intracellular trafficking. UbK63 chains decorate many plasma membrane proteins, providing a signal that is often, but not always, required for their internalization. In yeast, plants, worms and mammals, this same modification appears to be critical for efficient sorting to multivesicular bodies and subsequent lysosomal degradation. UbK63 chains are also one of the modifications involved in various forms of autophagy (mitophagy, xenophagy, or aggrephagy). Here, in the context of trafficking, we report recent structural studies investigating UbK63 chains assembly by various E2/E3 pairs, disassembly by deubiquitylases, and specifically recognition as sorting signals by receptors carrying Ub-binding domains, often acting in tandem. In addition, we address emerging and unanticipated roles of UbK63 chains in various recycling pathways that function by activating nucleators required for actin polymerization, as well as in the transient recruitment of signaling molecules at the plasma or ER membrane. In this review, we describe recent advances that converge to elucidate the mechanisms underlying the wealth of trafficking functions of UbK63 chains.
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Affiliation(s)
- Zoi Erpapazoglou
- Institut Jacques Monod-CNRS, UMR 7592, Université-Paris Diderot, Sorbonne Paris Cité, F-75205 Paris, France.
| | - Olivier Walker
- Institut des Sciences Analytiques, UMR5280, Université de Lyon/Université Lyon 1, 69100 Villeurbanne, France.
| | - Rosine Haguenauer-Tsapis
- Institut Jacques Monod-CNRS, UMR 7592, Université-Paris Diderot, Sorbonne Paris Cité, F-75205 Paris, France.
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40
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Ahmad G, Mohapatra BC, Schulte NA, Nadeau SA, Luan H, Zutshi N, Tom E, Ortega-Cava C, Tu C, Sanada M, Ogawa S, Toews ML, Band V, Band H. Cbl-family ubiquitin ligases and their recruitment of CIN85 are largely dispensable for epidermal growth factor receptor endocytosis. Int J Biochem Cell Biol 2014; 57:123-34. [PMID: 25449262 DOI: 10.1016/j.biocel.2014.10.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 10/03/2014] [Accepted: 10/16/2014] [Indexed: 11/15/2022]
Abstract
Members of the casitas B-lineage lymphoma (Cbl) family (Cbl, Cbl-b and Cbl-c) of ubiquitin ligases serve as negative regulators of receptor tyrosine kinases (RTKs). An essential role of Cbl-family protein-dependent ubiquitination for efficient ligand-induced lysosomal targeting and degradation is now well-accepted. However, a more proximal role of Cbl and Cbl-b as adapters for CIN85-endophilin recruitment to mediate ligand-induced initial internalization of RTKs is supported by some studies but refuted by others. Overexpression and/or incomplete depletion of Cbl proteins in these studies is likely to have contributed to this dichotomy. To address the role of endogenous Cbl and Cbl-b in the internalization step of RTK endocytic traffic, we established Cbl/Cbl-b double-knockout (DKO) mouse embryonic fibroblasts (MEFs) and demonstrated that these cells lack the expression of both Cbl-family members as well as endophilin A, while they express CIN85. We show that ligand-induced ubiquitination of EGFR, as a prototype RTK, was abolished in DKO MEFs, and EGFR degradation was delayed. These traits were reversed by ectopic human Cbl expression. EGFR endocytosis, assessed using the internalization of (125)I-labeled or fluorescent EGF, or of EGFR itself, was largely retained in Cbl/Cbl-b DKO compared to wild type MEFs. EGFR internalization was also largely intact in Cbl/Cbl-b depleted MCF-10A human mammary epithelial cell line. Inducible shRNA-mediated knockdown of CIN85 in wild type or Cbl/Cbl-b DKO MEFs had no impact on EGFR internalization. Our findings, establish that, at physiological expression levels, Cbl, Cbl-b and CIN85 are largely dispensable for EGFR internalization. Our results support the model that Cbl-CIN85-endophilin complex is not required for efficient internalization of EGFR, a prototype RTK.
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Affiliation(s)
- Gulzar Ahmad
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Bhopal C Mohapatra
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Nancy A Schulte
- Department of Pharmacology & Experimental Neuroscience, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Scott A Nadeau
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Genetics, Cell Biology & Anatomy, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Haitao Luan
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Genetics, Cell Biology & Anatomy, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Neha Zutshi
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Pathology & Microbiology, College of Medicine, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Eric Tom
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Cesar Ortega-Cava
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Chun Tu
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Masashi Sanada
- Department of Pathology and Tumor Biology, Kyoto University, Yoshida-Konoe-Cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Seishi Ogawa
- Department of Pathology and Tumor Biology, Kyoto University, Yoshida-Konoe-Cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Myron L Toews
- Department of Pharmacology & Experimental Neuroscience, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Vimla Band
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Genetics, Cell Biology & Anatomy, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA
| | - Hamid Band
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Genetics, Cell Biology & Anatomy, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Pathology & Microbiology, College of Medicine, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA; Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, 985950 Nebraska Medical Center, Omaha, NE 68198-5950, USA.
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41
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Protein tyrosine phosphatase PTPN3 inhibits lung cancer cell proliferation and migration by promoting EGFR endocytic degradation. Oncogene 2014; 34:3791-803. [DOI: 10.1038/onc.2014.312] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 07/26/2014] [Accepted: 08/16/2014] [Indexed: 12/12/2022]
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Parks EE, Ceresa BP. Cell surface epidermal growth factor receptors increase Src and c-Cbl activity and receptor ubiquitylation. J Biol Chem 2014; 289:25537-45. [PMID: 25074934 PMCID: PMC4162159 DOI: 10.1074/jbc.m114.579581] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 07/07/2014] [Indexed: 11/06/2022] Open
Abstract
There is an established role for the endocytic pathway in regulation of epidermal growth factor receptor (EGFR) signaling to downstream effectors. However, because ligand-mediated EGFR endocytosis utilizes multiple "moving parts," dissecting the spatial versus temporal contributions has been challenging. Blocking all endocytic trafficking can have unintended effects on other receptors as well as give rise to compensatory mechanisms, both of which impact interpretation of EGFR signaling. To overcome these limitations, we used epidermal growth factor (EGF) conjugated to polystyrene beads (EGF beads). EGF beads simultaneously activate the EGFR while blocking its endocytosis and allow analysis of EGFR signaling from the plasma membrane. Human telomerase immortalized corneal epithelial (hTCEpi) cells were used to model normal epithelial cell biology. In hTCEpi cells, both cell surface and intracellular EGFRs exhibited dose-dependent increases in effector activity after 15 min of ligand stimulation, but only the serine phosphorylation of signal transducer and activator of transcription 3 (STAT3) was statistically significant when accounting for receptor phosphorylation. However, over time with physiological levels of receptor phosphorylation, cell surface receptors produced either enhanced or sustained mitogen-activated protein kinase kinase (MEK), Casitas B-lineage lymphoma (c-Cbl), and the pro-oncogene Src activity. These increases in effector communication by cell surface receptors resulted in an increase in EGFR ubiquitylation with sustained ligand incubation. Together, these data indicate that spatial regulation of EGFR signaling may be an important regulatory mechanism in receptor down-regulation.
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Affiliation(s)
- Eileen E Parks
- From the Department of Pharmacology and Toxicology, University of Louisville, Louisville, Kentucky 40202
| | - Brian P Ceresa
- From the Department of Pharmacology and Toxicology, University of Louisville, Louisville, Kentucky 40202
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43
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Weng L, Enomoto A, Miyoshi H, Takahashi K, Asai N, Morone N, Jiang P, An J, Kato T, Kuroda K, Watanabe T, Asai M, Ishida-Takagishi M, Murakumo Y, Nakashima H, Kaibuchi K, Takahashi M. Regulation of cargo-selective endocytosis by dynamin 2 GTPase-activating protein girdin. EMBO J 2014; 33:2098-112. [PMID: 25061227 PMCID: PMC4195775 DOI: 10.15252/embj.201488289] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
In clathrin-mediated endocytosis (CME), specificity and selectivity for cargoes are thought to be tightly regulated by cargo-specific adaptors for distinct cellular functions. Here, we show that the actin-binding protein girdin is a regulator of cargo-selective CME. Girdin interacts with dynamin 2, a GTPase that excises endocytic vesicles from the plasma membrane, and functions as its GTPase-activating protein. Interestingly, girdin depletion leads to the defect in clathrin-coated pit formation in the center of cells. Also, we find that girdin differentially interacts with some cargoes, which competitively prevents girdin from interacting with dynamin 2 and confers the cargo selectivity for CME. Therefore, girdin regulates transferrin and E-cadherin endocytosis in the center of cells and their subsequent polarized intracellular localization, but has no effect on integrin and epidermal growth factor receptor endocytosis that occurs at the cell periphery. Our results reveal that girdin regulates selective CME via a mechanism involving dynamin 2, but not by operating as a cargo-specific adaptor.
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Affiliation(s)
- Liang Weng
- Department of Pathology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
| | - Atsushi Enomoto
- Department of Pathology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
| | - Hiroshi Miyoshi
- Department of Microbiology, St. Marianna University School of Medicine, Miyamae Kawasaki, Japan
| | - Kiyofumi Takahashi
- Department of Neuropsychiatry, St. Marianna University School of Medicine, Miyamae Kawasaki, Japan
| | - Naoya Asai
- Department of Pathology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
| | - Nobuhiro Morone
- Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku Kyoto, Japan
| | - Ping Jiang
- The Key Laboratory of Geriatrics, Beijing Hospital and Beijing Institute of Geriatrics Ministry of Health, Dong Dan Beijing, China
| | - Jian An
- Department of Respiratory Medicine, Xiangya Hospital Central South University, Kaifu District Changsha, China
| | - Takuya Kato
- Department of Pathology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
| | - Keisuke Kuroda
- Department of Cell Pharmacology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
| | - Takashi Watanabe
- Department of Cell Pharmacology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
| | - Masato Asai
- Department of Pathology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
| | - Maki Ishida-Takagishi
- Department of Pathology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
| | - Yoshiki Murakumo
- Department of Pathology, Kitasato University School of Medicine, Minami-ku Sagamihara, Japan
| | - Hideki Nakashima
- Department of Microbiology, St. Marianna University School of Medicine, Miyamae Kawasaki, Japan
| | - Kozo Kaibuchi
- Department of Cell Pharmacology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
| | - Masahide Takahashi
- Department of Pathology, Nagoya University Graduate School of Medicine, Showa-ku Nagoya, Japan
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44
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Antonescu CN, McGraw TE, Klip A. Reciprocal regulation of endocytosis and metabolism. Cold Spring Harb Perspect Biol 2014; 6:a016964. [PMID: 24984778 DOI: 10.1101/cshperspect.a016964] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The cellular uptake of many nutrients and micronutrients governs both their cellular availability and their systemic homeostasis. The cellular rate of nutrient or ion uptake (e.g., glucose, Fe(3+), K(+)) or efflux (e.g., Na(+)) is governed by a complement of membrane transporters and receptors that show dynamic localization at both the plasma membrane and defined intracellular membrane compartments. Regulation of the rate and mechanism of endocytosis controls the amounts of these proteins on the cell surface, which in many cases determines nutrient uptake or secretion. Moreover, the metabolic action of diverse hormones is initiated upon binding to surface receptors that then undergo regulated endocytosis and show distinct signaling patterns once internalized. Here, we examine how the endocytosis of nutrient transporters and carriers as well as signaling receptors governs cellular metabolism and thereby systemic (whole-body) metabolite homeostasis.
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Affiliation(s)
- Costin N Antonescu
- Department of Chemistry and Biology, Ryerson University, Toronto, Ontario M5B 2K3, Canada
| | - Timothy E McGraw
- Department of Biochemistry, Weill Medical College of Cornell University, New York, New York 10065
| | - Amira Klip
- Program in Cell Biology, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
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Tong J, Taylor P, Moran MF. Proteomic analysis of the epidermal growth factor receptor (EGFR) interactome and post-translational modifications associated with receptor endocytosis in response to EGF and stress. Mol Cell Proteomics 2014; 13:1644-58. [PMID: 24797263 DOI: 10.1074/mcp.m114.038596] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Aberrant expression, activation, and stabilization of epidermal growth factor receptor (EGFR) are causally associated with several human cancers. Post-translational modifications and protein-protein interactions directly modulate the signaling and trafficking of the EGFR. Activated EGFR is internalized by endocytosis and then either recycled back to the cell surface or degraded in the lysosome. EGFR internalization and recycling also occur in response to stresses that activate p38 MAP kinase. Mass spectrometry was applied to comprehensively analyze the phosphorylation, ubiquitination, and protein-protein interactions of wild type and endocytosis-defective EGFR variants before and after internalization in response to EGF ligand and stress. Prior to internalization, EGF-stimulated EGFR accumulated ubiquitin at 7 K residues and phosphorylation at 7 Y sites and at S(1104). Following internalization, these modifications diminished and there was an accumulation of S/T phosphorylations. EGFR internalization and many but not all of the EGF-induced S/T phosphorylations were also stimulated by anisomycin-induced cell stress, which was not associated with receptor ubiquitination or elevated Y phosphorylation. EGFR protein interactions were dramatically modulated by ligand, internalization, and stress. In response to EGF, different E3 ubiquitin ligases became maximally associated with EGFR before (CBL, HUWE1, and UBR4) or after (ITCH) internalization, whereas CBLB was distinctively most highly EGFR associated following anisomycin treatment. Adaptin subunits of AP-1 and AP-2 clathrin adaptor complexes also became EGFR associated in response to EGF and anisomycin stress. Mutations preventing EGFR phosphorylation at Y(998) or in the S(1039) region abolished or greatly reduced EGFR interactions with AP-2 and AP-1, and impaired receptor trafficking. These results provide new insight into spatial, temporal, and mechanistic aspects of EGFR regulation.
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Affiliation(s)
- Jiefei Tong
- From the ‡The Hospital For Sick Children, Program in Molecular Structure and Function, Princess Margaret Cancer Centre, and Department of Molecular Genetics, University of Toronto. Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto M5G 0A4, Canada
| | - Paul Taylor
- From the ‡The Hospital For Sick Children, Program in Molecular Structure and Function, Princess Margaret Cancer Centre, and Department of Molecular Genetics, University of Toronto. Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto M5G 0A4, Canada
| | - Michael F Moran
- From the ‡The Hospital For Sick Children, Program in Molecular Structure and Function, Princess Margaret Cancer Centre, and Department of Molecular Genetics, University of Toronto. Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto M5G 0A4, Canada
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He Z, Tian T, Guo D, Wu H, Chen Y, Zhang Y, Wan Q, Zhao H, Wang C, Shen H, Zhao L, Bu X, Wan M, Shen C. Cytoplasmic retention of a nucleocytoplasmic protein TBC1D3 by microtubule network is required for enhanced EGFR signaling. PLoS One 2014; 9:e94134. [PMID: 24714105 PMCID: PMC3979746 DOI: 10.1371/journal.pone.0094134] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Accepted: 03/13/2014] [Indexed: 11/19/2022] Open
Abstract
The hominoid oncogene TBC1D3 enhances epidermal growth factor receptor (EGFR) signaling and induces cell transformation. However, little is known regarding its spatio-temporal regulation and mechanism of tumorigenesis. In the current study, we identified the microtubule subunit β-tubulin as a potential interaction partner for TBC1D3 using affinity purification combined with mass spectrometry analysis. The interaction between TBC1D3 and β-tubulin was confirmed by co-immunoprecipitation. Using the same method, we also revealed that TBC1D3 co-precipitated with endogenous α-tubulin, another subunit of the microtubule. In agreement with these results, microtubule cosedimentation assays showed that TBC1D3 associated with the microtubule network. The β-tubulin-interacting site of TBC1D3 was mapped to amino acids 286∼353 near the C-terminus of the TBC domain. Deletion mutation within these amino acids was shown to abolish the interaction of TBC1D3 with β-tubulin. Interestingly, the deletion mutation caused a complete loss of TBC1D3 from the cytoplasmic filamentous and punctate structures, and TBC1D3 instead appeared in the nucleus. Consistent with this, wild-type TBC1D3 exhibited the same nucleocytoplasmic distribution in cells treated with the microtubule depolymerizing agent nocodazole, suggesting that the microtubule network associates with and retains TBC1D3 in the cytoplasm. We further found that deficiency in β-tubulin-interacting resulted in TBC1D3's inability to inhibit c-Cbl recruitment and EGFR ubiquitination, ultimately leading to dysregulation of EGFR degradation and signaling. Taken together, these studies indicate a novel model by which the microtubule network regulates EGFR stability and signaling through tubulin dimer/oligomer interaction with the nucleocytoplasmic protein TBC1D3.
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Affiliation(s)
- Ze He
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
- Key Laboratory of Developmental Genes and Human Diseases, Ministry of Education, Institute of Life Sciences, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Tian Tian
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Dan Guo
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Huijuan Wu
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Yang Chen
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Yongchen Zhang
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Qing Wan
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Huzi Zhao
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Congyang Wang
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Hongjing Shen
- Department of Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, New York, United States of America
| | - Lei Zhao
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Xiaodong Bu
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Meiling Wan
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Chuanlu Shen
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, Jiangsu, People's Republic of China
- * E-mail:
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47
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Jones S, Rappoport JZ. Interdependent epidermal growth factor receptor signalling and trafficking. Int J Biochem Cell Biol 2014; 51:23-8. [PMID: 24681003 DOI: 10.1016/j.biocel.2014.03.014] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 03/18/2014] [Accepted: 03/19/2014] [Indexed: 11/28/2022]
Abstract
Epidermal growth factor (EGF) receptor (EGFR) signalling regulates diverse cellular functions, promoting cell proliferation, differentiation, migration, cell growth and survival. EGFR signalling is critical during embryogenesis, in particular in epithelial development, and disruption of the EGFR gene results in epithelial immaturity and perinatal death. EGFR signalling also functions during wound healing responses through accelerating wound re-epithelialisation, inducing cell migration, proliferation and angiogenesis. Upregulation of EGFR signalling is often observed in carcinomas and has been shown to promote uncontrolled cell proliferation and metastasis. Therefore aberrant EGFR signalling is a common target for anticancer therapies. Various reports indicate that EGFR signalling primarily occurs at the plasma membrane and EGFR degradation following endocytosis greatly attenuates signalling. Other studies argue that EGFR internalisation is essential for complete activation of downstream signalling cascades and that endosomes can serve as signalling platforms. The aim of this review is to discuss current understanding of intersection between EGFR signalling and trafficking.
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Affiliation(s)
- Sylwia Jones
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Joshua Z Rappoport
- Nikon Imaging Center at Northwestern University, Northwestern University Feinberg School of Medicine, 303 E. Chicago Avenue, Chicago, IL 60611, United States.
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48
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Tushar MD, Ramanathan A. Tyrosine 1045 codon mutations in exon 27 of EGFR are infrequent in oral squamous cell carcinomas. Asian Pac J Cancer Prev 2014; 14:4279-82. [PMID: 23991943 DOI: 10.7314/apjcp.2013.14.7.4279] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The activation and inactivation of receptor tyrosine kinases are tightly regulated to ensure faithful replication of cells. After having transduced extracellular growth activating signals, activated EGFR is subjected to downregulation either by clathrin mediated endocytosis or c-Cbl mediated proteasome degradation depending on the ligand concentration. c-Cbl is an ubiquitin ligase which requires a phosphorylated tyrosine residue at position 1045 in the cytoplasmic domain of EGFR to interact and add ubiquitin molecules. While activating mutations in exons 19 and 21 have been associated with the development of several cancers, the status of mutations at tyrosine 1045 coding exon 27 of EGFR remain to be investigated. Consistently, defective phosphorylation at 1045 has been associated with sustained phosphorylation of EGFR in non-small lung carcinomas. Hence in the present study we investigated the genetic status of the tyrosine 1045 coding site within exon 27 of EGFR gene to explore for possible occurrence of mutations in this region, especially since no studies have addressed this issue so far. MATERIALS AND METHODS Tumor chromosomal DNA isolated from thirty five surgically excised oral squamous cell carcinoma tissues was subjected to PCR amplification with intronic primers flanking the tyrosine 1045 coding exon 27 of EGFR gene. The PCR amplicons were subsequently subjected to direct sequencing to elucidate the mutation status. RESULTS Sequence analysis identified no mutations in the tyrosine 1045 codon of EGFR in any of the thirty five samples that were analyzed. CONCLUSIONS The lack of identification of mutation in the tyrosine 1045 codon of EGFR suggests that mutations in this region may be relatively rare in oral squamous cell carcinomas. To the best of our knowledge, this study is the first to have explored the genetic status of exon 27 of EGFR in oral squamous cell carcinoma tissue samples.
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Affiliation(s)
- Mehta Dhaval Tushar
- Human Genetics Laboratory, Sree Balaji Medical and Dental College and Hospital, Bharath University, Chennai, India.
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Ceresa BP, Peterson JL. Cell and molecular biology of epidermal growth factor receptor. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2014; 313:145-78. [PMID: 25376492 DOI: 10.1016/b978-0-12-800177-6.00005-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The epidermal growth factor receptor (EGFR) has been one of the most intensely studied cell surface receptors due to its well-established roles in developmental biology, tissue homeostasis, and cancer biology. The EGFR has been critical for creating paradigms for numerous aspects of cell biology, such as ligand binding, signal transduction, and membrane trafficking. Despite this history of discovery, there is a continual stream of evidence that only the surface has been scratched. New ways of receptor regulation continue to be identified, each of which is a potential molecular target for manipulating EGFR signaling and the resultant changes in cell and tissue biology. This chapter is an update on EGFR-mediated signaling, and describes some recent developments in the regulation of receptor biology.
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Affiliation(s)
- Brian P Ceresa
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, USA
| | - Joanne L Peterson
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, USA
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50
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Piper RC, Dikic I, Lukacs GL. Ubiquitin-dependent sorting in endocytosis. Cold Spring Harb Perspect Biol 2014; 6:6/1/a016808. [PMID: 24384571 DOI: 10.1101/cshperspect.a016808] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
When ubiquitin (Ub) is attached to membrane proteins on the plasma membrane, it directs them through a series of sorting steps that culminate in their delivery to the lumen of the lysosome where they undergo complete proteolysis. Ubiquitin is recognized by a series of complexes that operate at a number of vesicle transport steps. Ubiquitin serves as a sorting signal for internalization at the plasma membrane and is the major signal for incorporation into intraluminal vesicles of multivesicular late endosomes. The sorting machineries that catalyze these steps can bind Ub via a variety of Ub-binding domains. At the same time, many of these complexes are themselves ubiquitinated, thus providing a plethora of potential mechanisms to regulate their activity. Here we provide an overview of how membrane proteins are selected for ubiquitination and deubiquitination within the endocytic pathway and how that ubiquitin signal is interpreted by endocytic sorting machineries.
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Affiliation(s)
- Robert C Piper
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, Iowa 52242
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