1
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Mazouzi A, Moser SC, Abascal F, van den Broek B, Del Castillo Velasco-Herrera M, van der Heijden I, Hekkelman M, Drenth AP, van der Burg E, Kroese LJ, Jalink K, Adams DJ, Jonkers J, Brummelkamp TR. FIRRM/C1orf112 mediates resolution of homologous recombination intermediates in response to DNA interstrand crosslinks. Sci Adv 2023; 9:eadf4409. [PMID: 37256941 PMCID: PMC10413679 DOI: 10.1126/sciadv.adf4409] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 04/25/2023] [Indexed: 06/02/2023]
Abstract
DNA interstrand crosslinks (ICLs) pose a major obstacle for DNA replication and transcription if left unrepaired. The cellular response to ICLs requires the coordination of various DNA repair mechanisms. Homologous recombination (HR) intermediates generated in response to ICLs, require efficient and timely conversion by structure-selective endonucleases. Our knowledge on the precise coordination of this process remains incomplete. Here, we designed complementary genetic screens to map the machinery involved in the response to ICLs and identified FIRRM/C1orf112 as an indispensable factor in maintaining genome stability. FIRRM deficiency leads to hypersensitivity to ICL-inducing compounds, accumulation of DNA damage during S-G2 phase of the cell cycle, and chromosomal aberrations, and elicits a unique mutational signature previously observed in HR-deficient tumors. In addition, FIRRM is recruited to ICLs, controls MUS81 chromatin loading, and thereby affects resolution of HR intermediates. FIRRM deficiency in mice causes early embryonic lethality and accelerates tumor formation. Thus, FIRRM plays a critical role in the response to ICLs encountered during DNA replication.
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Affiliation(s)
- Abdelghani Mazouzi
- Division of Biochemistry, Netherlands Cancer Institute, Amsterdam, Netherlands
- Oncode Institute, Amsterdam, Netherlands
| | - Sarah C. Moser
- Oncode Institute, Amsterdam, Netherlands
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Bram van den Broek
- Division of Cell Biology, Netherlands Cancer Institute, Amsterdam, Netherlands
- BioImaging Facility, Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Ingrid van der Heijden
- Oncode Institute, Amsterdam, Netherlands
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Maarten Hekkelman
- Division of Biochemistry, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Anne Paulien Drenth
- Oncode Institute, Amsterdam, Netherlands
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Eline van der Burg
- Oncode Institute, Amsterdam, Netherlands
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Lona J. Kroese
- Animal Modeling Facility, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Kees Jalink
- Division of Cell Biology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - David J. Adams
- Experimental Cancer Genetics, Wellcome Sanger Institute, Hinxton, UK
| | - Jos Jonkers
- Oncode Institute, Amsterdam, Netherlands
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Thijn R. Brummelkamp
- Division of Biochemistry, Netherlands Cancer Institute, Amsterdam, Netherlands
- Oncode Institute, Amsterdam, Netherlands
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2
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Slangen PL, Porat Y, Mertz M, van den Broek B, Jalink K, de Gooijer MC, van Tellingen O, Borst GR. Protocol for live-cell imaging during Tumor Treating Fields treatment with Inovitro Live. STAR Protoc 2022; 3:101246. [PMID: 35368806 PMCID: PMC8971986 DOI: 10.1016/j.xpro.2022.101246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Tumor Treating Fields (TTFields) are an FDA-approved anticancer treatment using alternating electric fields. Here, we present a protocol to perform live-cell imaging (LCI) of cells during TTFields treatment with the Inovitro LiveTM system. The setup we describe dissipates TTFields-related heat production and can be used in conjunction with any LCI-compatible microscope setup. This approach will enable further elucidation of TTFields’ mechanism of action at the molecular level and facilitate the development of promising combination strategies. Inovitro LiveTM allows concurrent live-cell imaging and TTFields treatment Suitable for use with both 2D -and 3D-cultured cells Describes multiple strategies to dissipate TTFields-associated heat Step-by-step description on how to operate the Inovitro LiveTM software
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Affiliation(s)
- Paul L.G. Slangen
- Department of Radiation Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | | | - Marjolijn Mertz
- Bioimaging Facility, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Bram van den Broek
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Mark C. de Gooijer
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Olaf van Tellingen
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Gerben R. Borst
- Department of Radiation Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
- The Christie NHS Foundation Trust, Wilmslow Road, M20 4BX Manchester, UK
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine & Health, The University of Manchester, 555 Wilmslow Road, M20 4GJ Manchester, UK
- Corresponding author
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3
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Kukk O, Klarenbeek J, Jalink K. Time-Domain Fluorescence Lifetime Imaging of cAMP Levels with EPAC-Based FRET Sensors. Methods Mol Biol 2022; 2483:105-116. [PMID: 35286672 DOI: 10.1007/978-1-0716-2245-2_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Second messenger molecules in eukaryotic cells relay the signals from activated cell surface receptors to intracellular effector proteins. FRET-based sensors are ideal to visualize and measure the often rapid changes of second messenger concentrations in time and place. Fluorescence Lifetime Imaging (FLIM) is an intrinsically quantitative technique for measuring FRET. Given the recent development of commercially available, sensitive and photon-efficient FLIM instrumentation, it is becoming the method of choice for FRET detection in signaling studies. Here, we describe a detailed protocol for time domain FLIM, using the EPAC-based FRET sensor to measure changes in cellular cAMP levels with high spatiotemporal resolution as an example.
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Affiliation(s)
- Olga Kukk
- The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Kees Jalink
- The Netherlands Cancer Institute, Amsterdam, The Netherlands.
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4
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Harkes R, Kukk O, Mukherjee S, Klarenbeek J, van den Broek B, Jalink K. Dynamic FRET-FLIM based screening of signal transduction pathways. Sci Rep 2021; 11:20711. [PMID: 34671065 PMCID: PMC8528867 DOI: 10.1038/s41598-021-00098-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 09/15/2021] [Indexed: 12/28/2022] Open
Abstract
Fluorescence Lifetime Imaging (FLIM) is an intrinsically quantitative method to screen for protein-protein interactions and is frequently used to record the outcome of signal transduction events. With new highly sensitive and photon efficient FLIM instrumentation, the technique also becomes attractive to screen, with high temporal resolution, for fast changes in Förster Resonance Energy Transfer (FRET), such as those occurring upon activation of cell signaling. The second messenger cyclic adenosine monophosphate (cAMP) is rapidly formed following activation of certain cell surface receptors. cAMP is subsequently degraded by a set of phosphodiesterases (PDEs) which display cell-type specific expression and may also affect baseline levels of the messenger. To study which specific PDEs contribute most to cAMP regulation, we knocked down individual PDEs and recorded breakdown rates of cAMP levels following transient stimulation in HeLa cells stably expressing the FRET/FLIM sensor, Epac-SH189. Many hundreds of cells were recorded at 5 s intervals for each condition. FLIM time traces were calculated for every cell, and decay kinetics were obtained. cAMP clearance was significantly slower when PDE3A and, to a lesser amount, PDE10A were knocked down, identifying these isoforms as dominant in HeLa cells. However, taking advantage of the quantitative FLIM data, we found that knockdown of individual PDEs has a very limited effect on baseline cAMP levels. By combining photon-efficient FLIM instrumentation with optimized sensors, systematic gene knockdown and an automated open-source analysis pipeline, our study demonstrates that dynamic screening of transient cell signals has become feasible. The quantitative platform described here provides detailed kinetic analysis of cellular signals in individual cells with unprecedented throughput.
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Affiliation(s)
- Rolf Harkes
- Cell Biophysics Group, Department of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Olga Kukk
- Cell Biophysics Group, Department of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Sravasti Mukherjee
- Cell Biophysics Group, Department of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Jeffrey Klarenbeek
- Cell Biophysics Group, Department of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Bram van den Broek
- Cell Biophysics Group, Department of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- BioImaging Facility, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Kees Jalink
- Cell Biophysics Group, Department of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands.
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5
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Salgado-Polo F, van Veen M, van den Broek B, Jalink K, Leyton-Puig D, Perrakis A, Moolenaar WH, Matas-Rico E. Sequence-dependent trafficking and activity of GDE2, a GPI-specific phospholipase promoting neuronal differentiation. J Cell Sci 2020; 133:jcs235044. [PMID: 31932507 PMCID: PMC7033719 DOI: 10.1242/jcs.235044] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 12/19/2019] [Indexed: 12/12/2022] Open
Abstract
GDE2 (also known as GDPD5) is a multispanning membrane phosphodiesterase with phospholipase D-like activity that cleaves select glycosylphosphatidylinositol (GPI)-anchored proteins and thereby promotes neuronal differentiation both in vitro and in vivo GDE2 is a prognostic marker in neuroblastoma, while loss of GDE2 leads to progressive neurodegeneration in mice; however, its regulation remains unclear. Here, we report that, in immature neuronal cells, GDE2 undergoes constitutive endocytosis and travels back along both fast and slow recycling routes. GDE2 trafficking is directed by C-terminal tail sequences that determine the ability of GDE2 to cleave GPI-anchored glypican-6 (GPC6) and induce a neuronal differentiation program. Specifically, we define a GDE2 truncation mutant that shows aberrant recycling and is dysfunctional, whereas a consecutive deletion results in cell-surface retention and gain of GDE2 function, thus uncovering distinctive regulatory sequences. Moreover, we identify a C-terminal leucine residue in a unique motif that is essential for GDE2 internalization. These findings establish a mechanistic link between GDE2 neuronal function and sequence-dependent trafficking, a crucial process gone awry in neurodegenerative diseases.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Fernando Salgado-Polo
- Division of Biochemistry, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Michiel van Veen
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Bram van den Broek
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Daniela Leyton-Puig
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Anastassis Perrakis
- Division of Biochemistry, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Wouter H Moolenaar
- Division of Biochemistry, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Elisa Matas-Rico
- Division of Biochemistry, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
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6
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van den Dries K, Nahidiazar L, Slotman JA, Meddens MBM, Pandzic E, Joosten B, Ansems M, Schouwstra J, Meijer A, Steen R, Wijers M, Fransen J, Houtsmuller AB, Wiseman PW, Jalink K, Cambi A. Modular actin nano-architecture enables podosome protrusion and mechanosensing. Nat Commun 2019; 10:5171. [PMID: 31729386 PMCID: PMC6858452 DOI: 10.1038/s41467-019-13123-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 10/11/2019] [Indexed: 01/03/2023] Open
Abstract
Basement membrane transmigration during embryonal development, tissue homeostasis and tumor invasion relies on invadosomes, a collective term for invadopodia and podosomes. An adequate structural framework for this process is still missing. Here, we reveal the modular actin nano-architecture that enables podosome protrusion and mechanosensing. The podosome protrusive core contains a central branched actin module encased by a linear actin module, each harboring specific actin interactors and actin isoforms. From the core, two actin modules radiate: ventral filaments bound by vinculin and connected to the plasma membrane and dorsal interpodosomal filaments crosslinked by myosin IIA. On stiff substrates, the actin modules mediate long-range substrate exploration, associated with degradative behavior. On compliant substrates, the vinculin-bound ventral actin filaments shorten, resulting in short-range connectivity and a focally protrusive, non-degradative state. Our findings redefine podosome nanoscale architecture and reveal a paradigm for how actin modularity drives invadosome mechanosensing in cells that breach tissue boundaries.
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Affiliation(s)
- Koen van den Dries
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Leila Nahidiazar
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
- van Leeuwenhoek Centre of Advanced Microscopy, Amsterdam, Netherlands
| | - Johan A Slotman
- Department of Pathology, Optical imaging center Erasmus MC, Rotterdam, Netherlands
| | - Marjolein B M Meddens
- Department of Physics and Astronomy and Department of Pathology, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Elvis Pandzic
- Biomedical Imaging Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Ben Joosten
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Marleen Ansems
- Radiotherapy & OncoImmunology Laboratory, Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Joost Schouwstra
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Anke Meijer
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Raymond Steen
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Mietske Wijers
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Jack Fransen
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | | | - Paul W Wiseman
- Departments of Physics and Chemistry, McGill University Otto Maass (OM), Chemistry Building, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
- van Leeuwenhoek Centre of Advanced Microscopy, Amsterdam, Netherlands
| | - Alessandra Cambi
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands.
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7
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Bernhagen D, Jungbluth V, Gisbert Quilis N, Dostalek J, White PB, Jalink K, Timmerman P. High-Affinity α 5β 1-Integrin-Selective Bicyclic RGD Peptides Identified via Screening of Designed Random Libraries. ACS Comb Sci 2019; 21:598-607. [PMID: 31269394 DOI: 10.1021/acscombsci.9b00081] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We report the identification of high-affinity and selectivity integrin α5β1-binding bicyclic peptides via "designed random libraries", that is, the screening of libraries comprising the universal integrin-binding sequence Arg-Gly-Asp (RGD) in the first loop in combination with a randomized sequence (XXX) in the second loop. Screening of first-generation libraries for α5β1-binding peptides yielded a triple-digit nanomolar bicyclic α5β1-binder (CT3RGDcT3AYGCT3, IC50 = 406 nM). Next-generation libraries were designed by partially varying the structure of the strongest first-generation lead inhibitor and screened for improved affinities and selectivities for this receptor. In this way, we identified three high-affinity α5β1-binders (CT3RGDcT3AYJCT3, J = d-Leu, IC50 = 90 nM; CT3RGDcT3AYaCT3, IC50 = 156 nM; CT3RGDcT3AWGCT3, IC50 = 173 nM), of which one even showed a higher α5β1-affinity than the 32 amino acid benchmark peptide knottin-RGD (IC50 = 114 nM). Affinity for α5β1-integrin was confirmed by SPFS analysis showing a Kd of 4.1 nM for Cy5-labeled RGD-bicycle CT3RGDcT3AYJCT3 (J = d-Leu) and a somewhat higher Kd (9.0 nM) for Cy5-labeled knottin-RGD. The α5β1-bicycles, for example, CT3RGDcT3AYJCT3 (J = d-Leu), showed excellent selectivities over αvβ5 (IC50 ratio α5β1/αvβ5 between <0.009 and 0.039) and acceptable selectivities over αvβ3 (IC50 ratios α5β1/αvβ3 between 0.090 and 0.157). In vitro staining of adipose-derived stem cells with Cy5-labeled peptides using confocal microscopy revealed strong binding of the α5β1-selective bicycle CT3RGDcT3AWGCT3 to integrins in their natural environment, illustrating the high potential of these RGD bicycles as markers for α5β1-integrin expression.
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Affiliation(s)
- Dominik Bernhagen
- Pepscan Therapeutics, Zuidersluisweg 2, 8243 RC Lelystad, the Netherlands
| | - Vanessa Jungbluth
- Biosensor Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
| | - Nestor Gisbert Quilis
- Biosensor Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
| | - Jakub Dostalek
- Biosensor Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
| | - Paul B. White
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, the Netherlands
| | - Kees Jalink
- The Netherlands Cancer Institute, Plesmanlaan 21, 1066 CX Amsterdam, the Netherlands
| | - Peter Timmerman
- Pepscan Therapeutics, Zuidersluisweg 2, 8243 RC Lelystad, the Netherlands
- Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands
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8
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Bernhagen D, Jungbluth V, Quilis NG, Dostalek J, White PB, Jalink K, Timmerman P. Bicyclic RGD Peptides with Exquisite Selectivity for the Integrin α vβ 3 Receptor Using a "Random Design" Approach. ACS Comb Sci 2019; 21:198-206. [PMID: 30624885 DOI: 10.1021/acscombsci.8b00144] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We describe the identification of bicyclic RGD peptides with high affinity and selectivity for integrin αvβ3 via high-throughput screening of partially randomized libraries. Peptide libraries (672 different compounds) comprising the universal integrin-binding sequence Arg-Gly-Asp (RGD) in the first loop and a randomized sequence XXX (X being one of 18 canonical l-amino acids) in the second loop, both enclosed by either an l- or d-Cys residue, were converted to bicyclic peptides via reaction with 1,3,5-tris(bromomethyl)benzene (T3). Screening of first-generation libraries yielded lead bicyclic inhibitors displaying submicromolar affinities for integrin αvβ3 (e.g., CT3HEQcT3RGDcT3, IC50 = 195 nM). Next generation (second and third) libraries were obtained by partially varying the structure of the strongest lead inhibitors and screening for improved affinities and selectivities. In this way, we identified the highly selective bicyclic αvβ3-binders CT3HPQcT3RGDcT3 (IC50 = 30 nM), CT3HPQCT3RGDcT3 (IC50 = 31 nM), and CT3HSQCT3RGDcT3 (IC50 = 42 nM) with affinities comparable to that of a knottin-RGD-type peptide (32 amino acids, IC50 = 38 nM) and outstanding selectivities over integrins αvβ5 (IC50 > 10000 nM) and α5β1 (IC50 > 10000 nM). Affinity measurements using surface plasmon-enhanced fluorescence spectroscopy (SPFS) yielded Kd values of 0.4 and 0.6 nM for the Cy5-labeled bicycle CT3HPQcT3RGDcT3 and RGD "knottin" peptide, respectively. In vitro staining of HT29 cells with Cy5-labeled bicycles using confocal microscopy revealed strong binding to integrins in their natural environment, which highlights the high potential of these peptides as markers of integrin expression.
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Affiliation(s)
- Dominik Bernhagen
- Pepscan Therapeutics, Zuidersluisweg 2, 8243 RC Lelystad, The Netherlands
| | - Vanessa Jungbluth
- Biosensor Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
| | - Nestor Gisbert Quilis
- Biosensor Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
| | - Jakub Dostalek
- Biosensor Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
| | - Paul B. White
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Kees Jalink
- The Netherlands Cancer Institute, Plesmanlaan 21, 1066 CX Amsterdam, The Netherlands
| | - Peter Timmerman
- Pepscan Therapeutics, Zuidersluisweg 2, 8243 RC Lelystad, The Netherlands
- Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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9
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Broertjes J, Klarenbeek J, Habani Y, Langeslag M, Jalink K. TRPM7 residue S1269 mediates cAMP dependence of Ca2+ influx. PLoS One 2019; 14:e0209563. [PMID: 30615643 PMCID: PMC6322742 DOI: 10.1371/journal.pone.0209563] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 12/07/2018] [Indexed: 02/06/2023] Open
Abstract
The nonspecific divalent cation channel TRPM7 (transient receptor potential-melastatin-like 7) is involved in many Ca2+ and Mg2+-dependent cellular processes, including survival, proliferation and migration. TRPM7 expression predicts metastasis and recurrence in breast cancer and several other cancers. In cultured cells, it can induce an invasive phenotype by promoting Ca2+-mediated epithelial-mesenchymal transition. We previously showed that in neuroblastoma cells that overexpress TRPM7 moderately, stimulation with Ca2+-mobilizing agonists leads to a characteristic sustained influx of Ca2+. Here we report that sustained influx through TRPM7 is abruptly abrogated by elevating intracellular levels of cyclic adenosine monophosphate (cAMP). Using pharmacological inhibitors and overexpression studies we show that this blockage is mediated by the cAMP effector Protein Kinase A (PKA). Mutational analysis demonstrates that the Serine residue S1269, which is present proximal to the coiled-coil domain within the protein c-terminus, is responsible for sensitivity to cAMP.
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Affiliation(s)
- Jorrit Broertjes
- Division of Cell Biology I, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jeffrey Klarenbeek
- Division of Cell Biology I, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Yasmin Habani
- Division of Cell Biology I, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Michiel Langeslag
- Division of Cell Biology I, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Kees Jalink
- Division of Cell Biology I, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- * E-mail:
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10
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Kamermans A, Planting KE, Jalink K, van Horssen J, de Vries HE. Reactive astrocytes in multiple sclerosis impair neuronal outgrowth through TRPM7-mediated chondroitin sulfate proteoglycan production. Glia 2018; 67:68-77. [PMID: 30453391 PMCID: PMC6587975 DOI: 10.1002/glia.23526] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/08/2018] [Accepted: 08/10/2018] [Indexed: 02/06/2023]
Abstract
Multiple sclerosis (MS) is a chronic inflammatory disorder of the central nervous system (CNS), characterized by inflammation‐mediated demyelination, axonal injury and neurodegeneration. The mechanisms underlying impaired neuronal function are not fully understood, but evidence is accumulating that the presence of the gliotic scar produced by reactive astrocytes play a critical role in these detrimental processes. Here, we identified astrocytic Transient Receptor Potential cation channel, subfamily M, member 7 (TRPM7), a Ca2+‐permeable nonselective cation channel, as a novel player in the formation of a gliotic scar. TRPM7 was found to be highly expressed in reactive astrocytes within well‐characterized MS lesions and upregulated in primary astrocytes under chronic inflammatory conditions. TRPM7 overexpressing astrocytes impaired neuronal outgrowth in vitro by increasing the production of chondroitin sulfate proteoglycans, a key component of the gliotic scar. These findings indicate that astrocytic TRPM7 is a critical regulator of the formation of a gliotic scar and provide a novel mechanism by which reactive astrocytes affect neuronal outgrowth.
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Affiliation(s)
- Alwin Kamermans
- Department of Molecular Cell Biology and Immunology, Amsterdam Neuroscience, MS center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Kirsten E Planting
- Department of Molecular Cell Biology and Immunology, Amsterdam Neuroscience, MS center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Kees Jalink
- Department of Cell Biology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Jack van Horssen
- Department of Molecular Cell Biology and Immunology, Amsterdam Neuroscience, MS center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Helga E de Vries
- Department of Molecular Cell Biology and Immunology, Amsterdam Neuroscience, MS center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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11
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Argenzio E, Klarenbeek J, Kedziora KM, Nahidiazar L, Isogai T, Perrakis A, Jalink K, Moolenaar WH, Innocenti M. Profilin binding couples chloride intracellular channel protein CLIC4 to RhoA-mDia2 signaling and filopodium formation. J Biol Chem 2018; 293:19161-19176. [PMID: 30381396 PMCID: PMC6302171 DOI: 10.1074/jbc.ra118.002779] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 10/26/2018] [Indexed: 12/31/2022] Open
Abstract
Chloride intracellular channel 4 (CLIC4) is a cytosolic protein implicated in diverse actin-based processes, including integrin trafficking, cell adhesion, and tubulogenesis. CLIC4 is rapidly recruited to the plasma membrane by RhoA-activating agonists and then partly colocalizes with β1 integrins. Agonist-induced CLIC4 translocation depends on actin polymerization and requires conserved residues that make up a putative binding groove. However, the mechanism and significance of CLIC4 trafficking have been elusive. Here, we show that RhoA activation by either lysophosphatidic acid (LPA) or epidermal growth factor is necessary and sufficient for CLIC4 translocation to the plasma membrane and involves regulation by the RhoA effector mDia2, a driver of actin polymerization and filopodium formation. We found that CLIC4 binds the G-actin–binding protein profilin-1 via the same residues that are required for CLIC4 trafficking. Consistently, shRNA-induced profilin-1 silencing impaired agonist-induced CLIC4 trafficking and the formation of mDia2-dependent filopodia. Conversely, CLIC4 knockdown increased filopodium formation in an integrin-dependent manner, a phenotype rescued by wild-type CLIC4 but not by the trafficking-incompetent mutant CLIC4(C35A). Furthermore, CLIC4 accelerated LPA-induced filopodium retraction. We conclude that through profilin-1 binding, CLIC4 functions in a RhoA–mDia2–regulated signaling network to integrate cortical actin assembly and membrane protrusion. We propose that agonist-induced CLIC4 translocation provides a feedback mechanism that counteracts formin-driven filopodium formation.
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Affiliation(s)
| | | | | | | | | | - Anastassis Perrakis
- Biochemistry, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
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12
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Annamdevula NS, Sweat R, Griswold JR, Trinh K, Hoffman C, West S, Deal J, Britain AL, Jalink K, Rich TC, Leavesley SJ. Spectral imaging of FRET-based sensors reveals sustained cAMP gradients in three spatial dimensions. Cytometry A 2018; 93:1029-1038. [PMID: 30176184 DOI: 10.1002/cyto.a.23572] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 06/21/2018] [Accepted: 07/09/2018] [Indexed: 11/10/2022]
Abstract
Cyclic AMP is a ubiquitous second messenger that orchestrates a variety of cellular functions over different timescales. The mechanisms underlying specificity within this signaling pathway are still not well understood. Several lines of evidence suggest the existence of spatial cAMP gradients within cells, and that compartmentalization underlies specificity within the cAMP signaling pathway. However, to date, no studies have visualized cAMP gradients in three spatial dimensions (3D: x, y, z).This is in part due to the limitations of FRET-based cAMP sensors, specifically the low signal-to-noise ratio intrinsic to all intracellular FRET probes. Here, we overcome this limitation, at least in part, by implementing spectral imaging approaches to estimate FRET efficiency when multiple fluorescent labels are used and when signals are measured from weakly expressed fluorescent proteins in the presence of background autofluorescence and stray light. Analysis of spectral image stacks in two spatial dimensions (2D) from single confocal slices indicates little or no cAMP gradients formed within pulmonary microvascular endothelial cells (PMVECs) under baseline conditions or following 10 min treatment with the adenylyl cyclase activator forskolin. However, analysis of spectral image stacks in 3D demonstrates marked cAMP gradients from the apical to basolateral face of PMVECs. Results demonstrate that spectral imaging approaches can be used to assess cAMP gradients-and in general gradients in fluorescence and FRET-within intact cells. Results also demonstrate that 2D imaging studies of localized fluorescence signals and, in particular, cAMP signals, whether using epifluorescence or confocal microscopy, may lead to erroneous conclusions about the existence and/or magnitude of gradients in either FRET or the underlying cAMP signals. Thus, with the exception of cellular structures that can be considered in one spatial dimension, such as neuronal processes, 3D measurements are required to assess mechanisms underlying compartmentalization and specificity within intracellular signaling pathways.
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Affiliation(s)
- Naga S Annamdevula
- Department of Chemical & Biomolecular Engineering, University of South Alabama, Mobile, Alabama.,Center for Lung Biology, University of South Alabama, Mobile, Alabama
| | - Rachel Sweat
- Department of Chemical & Biomolecular Engineering, University of South Alabama, Mobile, Alabama
| | - John R Griswold
- Department of Chemical & Biomolecular Engineering, University of South Alabama, Mobile, Alabama
| | - Kenny Trinh
- Department of Chemical & Biomolecular Engineering, University of South Alabama, Mobile, Alabama
| | - Chase Hoffman
- Medical Sciences, University of South Alabama, Mobile, Alabama
| | - Savannah West
- Department of Biomedical Sciences, University of South Alabama, Mobile, Alabama
| | - Joshua Deal
- Department of Chemical & Biomolecular Engineering, University of South Alabama, Mobile, Alabama.,Center for Lung Biology, University of South Alabama, Mobile, Alabama
| | - Andrea L Britain
- Center for Lung Biology, University of South Alabama, Mobile, Alabama.,Department of Pharmacology, University of South Alabama, Mobile, Alabama
| | - Kees Jalink
- The Netherlands Cancer Institute and van Leeuwenhoek Center for Advanced Microscopy, Amsterdam, the Netherlands
| | - Thomas C Rich
- Center for Lung Biology, University of South Alabama, Mobile, Alabama.,Department of Pharmacology, University of South Alabama, Mobile, Alabama.,College of Engineering, University of South Alabama, Mobile, Alabama
| | - Silas J Leavesley
- Department of Chemical & Biomolecular Engineering, University of South Alabama, Mobile, Alabama.,Center for Lung Biology, University of South Alabama, Mobile, Alabama.,Department of Pharmacology, University of South Alabama, Mobile, Alabama
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13
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Grivas N, van der Roest RC, de Korne CM, KleinJan GH, Sikorska K, Schoots IG, Tillier C, van der Broek B, Jalink K, Heijmink SWTJP, Buckle T, van Leeuwen FWB, van der Poel HG. The value of periprostatic fascia thickness and fascia preservation as prognostic factors of erectile function after nerve-sparing robot-assisted radical prostatectomy. World J Urol 2018; 37:309-315. [PMID: 29936567 DOI: 10.1007/s00345-018-2387-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 06/19/2018] [Indexed: 12/13/2022] Open
Abstract
PURPOSE To determine the correlation of preoperative fascia thickness (FT) and intraoperative fascia preservation (FP) with erectile function (EF) after nerve-sparing robot-assisted radical prostatectomy (RARP). METHODS Our analysis included 106 patients, with localized prostate cancer and no erectile dysfunction (ED) before RARP, assessed with preoperative 3 Tesla (3 T) multiparametric magnetic resonance imaging (MRI). FP score was defined as the extent of FP from the base to the apex of the prostate, quantitatively assessed by the surgeon. Median fascia thickness (MFT) per patient was defined as the sum of the median FT of 12 MRI regions. Preserved MFT (pMFT) was the sum of the saved MFT. The percentage of pFMT (ppMFT) was also calculated. Fascia surface (FS) was measured on MRI and it was combined with FP score resulting in preserved FS (pFS) and percentage of pFS (ppFS). RESULTS FP score, pMFT, ppMFT, pFS and ppFS were significantly lower (p < 0.0001) in patients with ED. In the multivariate regression analysis, lower FP score [odds ratio (OR) 0.721, p = 0.03] and lower ppMFT (OR 0.001, p = 0.027) were independent predictors of ED. ROC analysis showed the highest area under the curve for ppMFT (0.787) and FP score (0.767) followed by pMFT (0.755) and ppFS (0.743). CONCLUSIONS MRI-determined periprostatic FT combined with intraoperative FP score are correlated to postprostatectomy EF. Based on the hypothesis that a thicker fascia forms a protective layer for the nerves, we recommend assessing FT preoperatively to counsel men for the odds of preserving EF after RARP.
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Affiliation(s)
- Nikolaos Grivas
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.
| | - Rosanne C van der Roest
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Clarize M de Korne
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
| | - Gijs H KleinJan
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
| | - Karolina Sikorska
- Department of Biometrics, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Ivo G Schoots
- Department of Radiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Corinne Tillier
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Bram van der Broek
- Department of Cell Biology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Kees Jalink
- Department of Cell Biology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Stijn W T J P Heijmink
- Department of Radiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Tessa Buckle
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
| | - Fijs W B van Leeuwen
- Department of Radiology, Interventional Molecular Imaging Laboratory, Leiden University Medical Center, Leiden, The Netherlands
| | - Henk G van der Poel
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
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14
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Rico EM, Veen MV, Van de Wetering K, Puig DL, Kedziora K, Jalink K, Sidenius N, Perrakis A, Moolenaar W. PO-188 Loss of uPAR function and suppression of malignant cell behaviour by a GPI-specific phospholipase C. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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15
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Polo FS, Van Veen M, Leyton-Puig D, Van den Broek B, Perrakis A, Jalink K, Moolenaar W, Matas-Rico E. PO-228 Regulation of GDE2 membrane localization and trafficking. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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16
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van Veen M, Matas-Rico E, van de Wetering K, Leyton-Puig D, Kedziora KM, De Lorenzi V, Stijf-Bultsma Y, van den Broek B, Jalink K, Sidenius N, Perrakis A, Moolenaar WH. Negative regulation of urokinase receptor activity by a GPI-specific phospholipase C in breast cancer cells. eLife 2017; 6. [PMID: 28849762 PMCID: PMC5576486 DOI: 10.7554/elife.23649] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 07/28/2017] [Indexed: 12/21/2022] Open
Abstract
The urokinase receptor (uPAR) is a glycosylphosphatidylinositol (GPI)-anchored protein that promotes tissue remodeling, tumor cell adhesion, migration and invasion. uPAR mediates degradation of the extracellular matrix through protease recruitment and enhances cell adhesion, migration and signaling through vitronectin binding and interactions with integrins. Full-length uPAR is released from the cell surface, but the mechanism and significance of uPAR shedding remain obscure. Here we identify transmembrane glycerophosphodiesterase GDE3 as a GPI-specific phospholipase C that cleaves and releases uPAR with consequent loss of function, whereas its homologue GDE2 fails to attack uPAR. GDE3 overexpression depletes uPAR from distinct basolateral membrane domains in breast cancer cells, resulting in a less transformed phenotype, it slows tumor growth in a xenograft model and correlates with prolonged survival in patients. Our results establish GDE3 as a negative regulator of the uPAR signaling network and, furthermore, highlight GPI-anchor hydrolysis as a cell-intrinsic mechanism to alter cell behavior. Every process in the body, from how cells divide to how they move around, is tightly regulated. For example, cells only migrate when they receive the correct signals from their environment. These signals are recognised by receptor proteins that sit on the cell surface and connect the outside signal with the cell’s response. However, in cancer cells, these processes are out of control, which is why cancer cells can grow very quickly or spread to many different parts of the body. One important receptor protein is the urokinase receptor, which helps to reorganize the tissue, for example, when wounds heal, but also enables cancer cells to grow and spread. A special feature of urokinase receptor is the way it is connected to the cell surface, namely through a molecule that acts as an anchor, called the GPI anchor. The urokinase receptor and some other GPI-anchored proteins can be released from their anchor. However, until now it was not clear why and how the urokinase receptor is released from cells, or how losing the receptor affects the cell. Now, van Veen, Matas-Rico et al. studied breast cancer cells, and discovered that an enzyme called GDE3 cuts the urokinase receptor off its GPI anchor to release the receptor from the cells. However, when breast cancer cells shed the urokinase receptor, they also lost the receptor from the cell surface in specific areas. As a result, the receptor could not work anymore. When breast cancer cells were experimentally modified to produce high levels of GDE3, the cancer cells became less mobile and aggressive. Van Veen, Matas-Rico et al. then implanted ‘normal’ breast cancer cells, and breast cancer cells with extra GDE3 into mice, and observed that the tumors of mice with additional GDE3 grew less quickly. Moreover, breast cancer patients with high levels of GDE3 tend to live longer than patients with low levels of GDE3. These results suggest that the enzyme GDE3 can suppress tumor growth. These findings uncover a new way how cells can alter their behavior, namely by cleaving GPI anchors at the cell surface. Future experiments will need to address how GDE3 itself is controlled, and if it releases other GPI-anchored proteins from cells. Once we know how to increase GDE3 activity in tumor cells, the new knowledge could one day lead to therapies to help patients with cancer.
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Affiliation(s)
- Michiel van Veen
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Elisa Matas-Rico
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Koen van de Wetering
- Division of Molecular Oncology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Daniela Leyton-Puig
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Katarzyna M Kedziora
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Yvette Stijf-Bultsma
- Division of Biochemistry, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Bram van den Broek
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Anastassis Perrakis
- Division of Biochemistry, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Wouter H Moolenaar
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
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17
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Van der Roest R, KleinJan G, Heijmink S, Sikorska K, Tillier C, Schoots I, Buckle T, Van den Broek B, Jalink K, Van Leeuwen F, Van der Poel H. MRI-based periprostatic-fascia thickness measurements as tool to virtually predict postoperative erectile function after robot-assisted radical prostatectomy. Eur J Cancer 2017. [DOI: 10.1016/s0959-8049(17)30700-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Rodella U, Negro S, Scorzeto M, Bergamin E, Jalink K, Montecucco C, Yuki N, Rigoni M. Schwann cells are activated by ATP released from neurons in an in vitro cellular model of Miller Fisher syndrome. Dis Model Mech 2017; 10:597-603. [PMID: 28067631 PMCID: PMC5451166 DOI: 10.1242/dmm.027870] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 12/14/2016] [Indexed: 01/04/2023] Open
Abstract
The neuromuscular junction is exposed to different types of insult, including mechanical trauma, toxins and autoimmune antibodies and, accordingly, has retained through evolution a remarkable ability to regenerate. Regeneration is driven by multiple signals that are exchanged among the cellular components of the junction. These signals are largely unknown. Miller Fisher syndrome is a variant of Guillain-Barré syndrome caused by autoimmune antibodies specific for epitopes of peripheral axon terminals. Using an animal model of Miller Fisher syndrome, we recently reported that a monoclonal anti-polysialoganglioside GQ1b antibody plus complement damages nerve terminals with production of mitochondrial hydrogen peroxide, which activates Schwann cells. Several additional signaling molecules are likely to be involved in the activation of the regeneration program in these cells. Using an in vitro cellular model consisting of co-cultured primary neurons and Schwann cells, we found that ATP is released by neurons injured by the anti-GQ1b antibody plus complement. Neuron-derived ATP acts as an alarm messenger for Schwann cells, where it induces the activation of intracellular pathways, including calcium signaling, cAMP and CREB, which, in turn, produce signals that promote nerve regeneration. These results contribute to defining the cross-talk taking place at the neuromuscular junction when it is attacked by anti-gangliosides autoantibodies plus complement, which is crucial for nerve regeneration and is also likely to be important in other peripheral neuropathies.
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Affiliation(s)
- Umberto Rodella
- Department of Biomedical Sciences, University of Padua, Padua 35131 Italy
| | - Samuele Negro
- Department of Biomedical Sciences, University of Padua, Padua 35131 Italy
| | - Michele Scorzeto
- Department of Biomedical Sciences, University of Padua, Padua 35131 Italy
| | - Elisanna Bergamin
- Department of Biomedical Sciences, University of Padua, Padua 35131 Italy
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Cesare Montecucco
- Department of Biomedical Sciences, University of Padua, Padua 35131 Italy.,CNR Institute of Neuroscience, Padua 35131, Italy
| | - Nobuhiro Yuki
- Department of Neurology, Mishima Hospital, Niigata 940-2302, Japan
| | - Michela Rigoni
- Department of Biomedical Sciences, University of Padua, Padua 35131 Italy
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19
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Matas-Rico E, van Veen M, Leyton-Puig D, van den Berg J, Koster J, Kedziora KM, Molenaar B, Weerts MJA, de Rink I, Medema RH, Giepmans BNG, Perrakis A, Jalink K, Versteeg R, Moolenaar WH. Glycerophosphodiesterase GDE2 Promotes Neuroblastoma Differentiation through Glypican Release and Is a Marker of Clinical Outcome. Cancer Cell 2016; 30:986. [PMID: 27960089 DOI: 10.1016/j.ccell.2016.11.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Matas-Rico E, van Veen M, Leyton-Puig D, van den Berg J, Koster J, Kedziora KM, Molenaar B, Weerts MJA, de Rink I, Medema RH, Giepmans BNG, Perrakis A, Jalink K, Versteeg R, Moolenaar WH. Glycerophosphodiesterase GDE2 Promotes Neuroblastoma Differentiation through Glypican Release and Is a Marker of Clinical Outcome. Cancer Cell 2016; 30:548-562. [PMID: 27693046 DOI: 10.1016/j.ccell.2016.08.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 06/06/2016] [Accepted: 08/26/2016] [Indexed: 02/06/2023]
Abstract
Neuroblastoma is a pediatric embryonal malignancy characterized by impaired neuronal differentiation. A better understanding of neuroblastoma differentiation is essential for developing new therapeutic approaches. GDE2 (encoded by GDPD5) is a six-transmembrane-domain glycerophosphodiesterase that promotes embryonic neurogenesis. We find that high GDPD5 expression is strongly associated with favorable outcome in neuroblastoma. GDE2 induces differentiation of neuroblastoma cells, suppresses cell motility, and opposes RhoA-driven neurite retraction. GDE2 alters the Rac-RhoA activity balance and the expression of multiple differentiation-associated genes. Mechanistically, GDE2 acts by cleaving (in cis) and releasing glycosylphosphatidylinositol-anchored glypican-6, a putative co-receptor. A single point mutation in the ectodomain abolishes GDE2 function. Our results reveal GDE2 as a cell-autonomous inducer of neuroblastoma differentiation with prognostic significance and potential therapeutic value.
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Affiliation(s)
- Elisa Matas-Rico
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Michiel van Veen
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Daniela Leyton-Puig
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Jeroen van den Berg
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Jan Koster
- Department of Oncogenomics, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Katarzyna M Kedziora
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Bas Molenaar
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Marjolein J A Weerts
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Iris de Rink
- Deep Sequencing Core Facility, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands
| | - René H Medema
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Ben N G Giepmans
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Anastassis Perrakis
- Division of Biochemistry, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Rogier Versteeg
- Department of Oncogenomics, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Wouter H Moolenaar
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands.
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21
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Feringa FM, Krenning L, Koch A, van den Berg J, van den Broek B, Jalink K, Medema RH. Hypersensitivity to DNA damage in antephase as a safeguard for genome stability. Nat Commun 2016; 7:12618. [PMID: 27561326 PMCID: PMC5007458 DOI: 10.1038/ncomms12618] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 07/18/2016] [Indexed: 12/25/2022] Open
Abstract
Activation of the DNA-damage response can lead to the induction of an arrest at various stages in the cell cycle. These arrests are reversible in nature, unless the damage is too excessive. Here we find that checkpoint reversibility is lost in cells that are in very late G2, but not yet fully committed to enter mitosis (antephase). We show that antephase cells exit the cell cycle and enter senescence at levels of DNA damage that induce a reversible arrest in early G2. We show that checkpoint reversibility critically depends on the presence of the APC/C inhibitor Emi1, which is degraded just before mitosis. Importantly, ablation of the cell cycle withdrawal mechanism in antephase promotes cell division in the presence of broken chromosomes. Thus, our data uncover a novel, but irreversible, DNA-damage response in antephase that is required to prevent the propagation of DNA damage during cell division.
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Affiliation(s)
- Femke M Feringa
- Division of Cell Biology I and Cancer Genomics Center, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Lenno Krenning
- Division of Cell Biology I and Cancer Genomics Center, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands.,Hubrecht Institute, The Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, Utrecht 3584CT, The Netherlands
| | - André Koch
- Division of Cell Biology I and Cancer Genomics Center, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Jeroen van den Berg
- Division of Cell Biology I and Cancer Genomics Center, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Bram van den Broek
- Division of Cell Biology I and Cancer Genomics Center, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Kees Jalink
- Division of Cell Biology I and Cancer Genomics Center, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - René H Medema
- Division of Cell Biology I and Cancer Genomics Center, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
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22
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Leyton-Puig D, Kedziora KM, Isogai T, van den Broek B, Jalink K, Innocenti M. PFA fixation enables artifact-free super-resolution imaging of the actin cytoskeleton and associated proteins. Biol Open 2016; 5:1001-9. [PMID: 27378434 PMCID: PMC4958280 DOI: 10.1242/bio.019570] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 06/01/2016] [Indexed: 01/22/2023] Open
Abstract
Super-resolution microscopy (SRM) allows precise localization of proteins in cellular organelles and structures, including the actin cytoskeleton. Yet sample preparation protocols for SRM are rather anecdotal and still being optimized. Thus, SRM-based imaging of the actin cytoskeleton and associated proteins often remains challenging and poorly reproducible. Here, we show that proper paraformaldehyde (PFA)-based sample preparation preserves the architecture of the actin cytoskeleton almost as faithfully as gold-standard glutaraldehyde fixation. We show that this fixation is essential for proper immuno-based localization of actin-binding and actin-regulatory proteins involved in the formation of lamellipodia and ruffles, such as mDia1, WAVE2 and clathrin heavy chain, and provide detailed guidelines for the execution of our method. In summary, proper PFA-based sample preparation increases the multi-color possibilities and the reproducibility of SRM of the actin cytoskeleton and its associated proteins.
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Affiliation(s)
- Daniela Leyton-Puig
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Katarzyna M Kedziora
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Tadamoto Isogai
- Division of Molecular Genetics, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Bram van den Broek
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Kees Jalink
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Metello Innocenti
- Division of Molecular Genetics, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
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Leyton Puig D, Leyton Puig D, Kedziora * KM, Isogai * T, van den Broek B, Jalink K, Innocenti M. Tips and tricks for artifact-free PFA-based fixation of the actin cytoskeleton and its regulatory proteins for single molecule localization super-resolution microscopy. ACTA ACUST UNITED AC 2016. [DOI: 10.1038/protex.2016.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Nahidiazar L, Agronskaia AV, Broertjes J, van den Broek B, Jalink K. Optimizing Imaging Conditions for Demanding Multi-Color Super Resolution Localization Microscopy. PLoS One 2016; 11:e0158884. [PMID: 27391487 PMCID: PMC4938622 DOI: 10.1371/journal.pone.0158884] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/23/2016] [Indexed: 11/18/2022] Open
Abstract
Single Molecule Localization super-resolution Microscopy (SMLM) has become a powerful tool to study cellular architecture at the nanometer scale. In SMLM, single fluorophore labels are made to repeatedly switch on and off (“blink”), and their exact locations are determined by mathematically finding the centers of individual blinks. The image quality obtainable by SMLM critically depends on efficacy of blinking (brightness, fraction of molecules in the on-state) and on preparation longevity and labeling density. Recent work has identified several combinations of bright dyes and imaging buffers that work well together. Unfortunately, different dyes blink optimally in different imaging buffers, and acquisition of good quality 2- and 3-color images has therefore remained challenging. In this study we describe a new imaging buffer, OxEA, that supports 3-color imaging of the popular Alexa dyes. We also describe incremental improvements in preparation technique that significantly decrease lateral- and axial drift, as well as increase preparation longevity. We show that these improvements allow us to collect very large series of images from the same cell, enabling image stitching, extended 3D imaging as well as multi-color recording.
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Affiliation(s)
- Leila Nahidiazar
- Cell Biophysics group, Department of Cell biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Jorrit Broertjes
- Faculty of Science, University of Amsterdam, Amsterdam, The Netherlands
| | - Bram van den Broek
- Cell Biophysics group, Department of Cell biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Kees Jalink
- Cell Biophysics group, Department of Cell biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Faculty of Science, University of Amsterdam, Amsterdam, The Netherlands
- Van Leeuwenhoek Centre for Advanced Microscopy, Molecular Cytology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
- * E-mail:
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25
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Wijdeven RH, Janssen H, Nahidiazar L, Janssen L, Jalink K, Berlin I, Neefjes J. Cholesterol and ORP1L-mediated ER contact sites control autophagosome transport and fusion with the endocytic pathway. Nat Commun 2016; 7:11808. [PMID: 27283760 PMCID: PMC4906411 DOI: 10.1038/ncomms11808] [Citation(s) in RCA: 153] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 05/03/2016] [Indexed: 02/06/2023] Open
Abstract
Autophagy is the main homeostatic pathway guiding cytosolic materials for degradation by the lysosome. Maturation of autophagosomes requires their transport towards the perinuclear region of the cell, with key factors underlying both processes still poorly understood. Here we show that transport and positioning of late autophagosomes depends on cholesterol by way of the cholesterol-sensing Rab7 effector ORP1L. ORP1L localizes to late autophagosomes and—under low-cholesterol conditions—contacts the ER protein VAP-A, forming ER-autophagosome contact sites, which prevent minus-end transport by the Rab7–RILP–dynein complex. ORP1L-mediated contact sites also inhibit localization of PLEKHM1 to Rab7. PLEKHM1, together with RILP, then recruits the homotypic fusion and vacuole protein-sorting (HOPS) complex for fusion of autophagosomes with late endosomes and lysosomes. Thus, ORP1L, via its liganding by lipids and the formation of contacts between autophagic vacuoles and the ER, governs the last steps in autophagy that lead to the lysosomal degradation of cytosolic material. Autophagy requires transport of autophagosomes to the perinuclear region. Here, the authors show that ORP1L localizes to autophagosomes and mediates formation of ER contact sites that prevent autophagosome transport and fusion with endocytic vesicles when cholesterol levels are low.
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Affiliation(s)
- Ruud H Wijdeven
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Hans Janssen
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Leila Nahidiazar
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Lennert Janssen
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands.,Department of Chemical Immunology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Ilana Berlin
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands.,Department of Chemical Immunology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
| | - Jacques Neefjes
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands.,Department of Chemical Immunology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
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26
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Vrenken KS, Jalink K, van Leeuwen FN, Middelbeek J. Beyond ion-conduction: Channel-dependent and -independent roles of TRP channels during development and tissue homeostasis. Biochimica et Biophysica Acta (BBA) - Molecular Cell Research 2016; 1863:1436-46. [DOI: 10.1016/j.bbamcr.2015.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 10/26/2015] [Accepted: 11/11/2015] [Indexed: 01/09/2023]
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27
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Negro S, Bergamin E, Rodella U, Duregotti E, Scorzeto M, Jalink K, Montecucco C, Rigoni M. ATP Released by Injured Neurons Activates Schwann Cells. Front Cell Neurosci 2016; 10:134. [PMID: 27242443 PMCID: PMC4876115 DOI: 10.3389/fncel.2016.00134] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 05/06/2016] [Indexed: 11/13/2022] Open
Abstract
Injured nerve terminals of neuromuscular junctions (NMJs) can regenerate. This remarkable and complex response is governed by molecular signals that are exchanged among the cellular components of this synapse: motor axon nerve terminal (MAT), perisynaptic Schwann cells (PSCs), and muscle fiber. The nature of signals that govern MAT regeneration is ill-known. In the present study the spider toxin α-latrotoxin has been used as tool to investigate the mechanisms underlying peripheral neuroregeneration. Indeed this neurotoxin induces an acute, specific, localized and fully reversible damage of the presynaptic nerve terminal, and its action mimics the cascade of events that leads to nerve terminal degeneration in injured patients and in many neurodegenerative conditions. Here we provide evidence of an early release by degenerating neurons of adenosine triphosphate as alarm messenger, that contributes to the activation of a series of intracellular pathways within Schwann cells that are crucial for nerve regeneration: Ca(2+), cAMP, ERK1/2, and CREB. These results contribute to define the cross-talk taking place among degenerating nerve terminals and PSCs, involved in the functional recovery of the NMJ.
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Affiliation(s)
- Samuele Negro
- Department of Biomedical Sciences, University of Padova Padua, Italy
| | - Elisanna Bergamin
- Department of Biomedical Sciences, University of Padova Padua, Italy
| | - Umberto Rodella
- Department of Biomedical Sciences, University of Padova Padua, Italy
| | - Elisa Duregotti
- Department of Biomedical Sciences, University of Padova Padua, Italy
| | - Michele Scorzeto
- Department of Biomedical Sciences, University of Padova Padua, Italy
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute Amsterdam, Netherlands
| | - Cesare Montecucco
- Department of Biomedical Sciences, University of PadovaPadua, Italy; National Research Council, Institute of NeurosciencePadua, Italy
| | - Michela Rigoni
- Department of Biomedical Sciences, University of Padova Padua, Italy
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28
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Hövelmann F, Kedziora KM, Nadler A, Müller R, Jalink K, Schultz C. Optotaxis: Caged Lysophosphatidic Acid Enables Optical Control of a Chemotactic Gradient. Cell Chem Biol 2016; 23:629-634. [PMID: 27161483 DOI: 10.1016/j.chembiol.2015.11.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 11/10/2015] [Accepted: 11/18/2015] [Indexed: 11/28/2022]
Abstract
Lysophosphatidic acid (LPA) is a serum-borne lipid mediator that binds to a variety of different G protein-coupled receptors to trigger an exceptionally wide range of biological effects, including cell survival and differentiation, cancer cell migration, and embryonic development. Here we synthesized caged LPA (cgLPA), a "photolysable" coumarin-masked derivative of LPA. We demonstrate that illumination of cgLPA with 405 nm light liberates bioactive LPA on a subsecond scale to evoke Ca(2+) signaling, Rho activation, and cytoskeletal contraction. In addition, we developed an "optotaxis" assay to attract melanoma cells through a stable chemotactic gradient by repeated liberation of LPA through local photolysis of extracellular cgLPA. We expect that this method of light-controlled chemotaxis will be generally applicable to a large variety of small molecules that drive cellular migration or other responses.
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Affiliation(s)
- Felix Hövelmann
- Cell Biology & Biophysics Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Katarzyna M Kedziora
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - André Nadler
- Cell Biology & Biophysics Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany; Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstrasse 108, 01307 Dresden, Germany
| | - Rainer Müller
- Cell Biology & Biophysics Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Carsten Schultz
- Cell Biology & Biophysics Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstrasse 1, 69117 Heidelberg, Germany.
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29
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Richards M, Lomas O, Jalink K, Ford KL, Vaughan-Jones RD, Lefkimmiatis K, Swietach P. Intracellular tortuosity underlies slow cAMP diffusion in adult ventricular myocytes. Cardiovasc Res 2016; 110:395-407. [PMID: 27089919 PMCID: PMC4872880 DOI: 10.1093/cvr/cvw080] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 04/11/2016] [Indexed: 12/20/2022] Open
Abstract
Aims 3′,5′-Cyclic adenosine monophosphate (cAMP) signals in the heart are often confined to concentration microdomains shaped by cAMP diffusion and enzymatic degradation. While the importance of phosphodiesterases (degradative enzymes) in sculpting cAMP microdomains is well established in cardiomyocytes, less is known about cAMP diffusivity (DcAMP) and factors affecting it. Many earlier studies have reported fast diffusivity, which argues against sharply defined microdomains. Methods and results [cAMP] dynamics in the cytoplasm of adult rat ventricular myocytes were imaged using a fourth generation genetically encoded FRET-based sensor. The [cAMP]-response to the addition and removal of isoproterenol (β-adrenoceptor agonist) quantified the rates of cAMP synthesis and degradation. To obtain a read out of DcAMP, a stable [cAMP] gradient was generated using a microfluidic device which delivered agonist to one half of the myocyte only. After accounting for phosphodiesterase activity, DcAMP was calculated to be 32 µm2/s; an order of magnitude lower than in water. Diffusivity was independent of the amount of cAMP produced. Saturating cAMP-binding sites with the analogue 6-Bnz-cAMP did not accelerate DcAMP, arguing against a role of buffering in restricting cAMP mobility. cAMP diffused at a comparable rate to chemically unrelated but similar sized molecules, arguing for a common physical cause of restricted diffusivity. Lower mitochondrial density and order in neonatal cardiac myocytes allowed for faster diffusion, demonstrating the importance of mitochondria as physical barriers to cAMP mobility. Conclusion In adult cardiac myocytes, tortuosity due to physical barriers, notably mitochondria, restricts cAMP diffusion to levels that are more compatible with microdomain signalling.
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Affiliation(s)
- Mark Richards
- Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, Parks Road, Oxford OX1 3PT, UK
| | - Oliver Lomas
- Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, Parks Road, Oxford OX1 3PT, UK
| | - Kees Jalink
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
| | - Kerrie L Ford
- Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, Parks Road, Oxford OX1 3PT, UK
| | - Richard D Vaughan-Jones
- Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, Parks Road, Oxford OX1 3PT, UK
| | - Konstantinos Lefkimmiatis
- Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, Parks Road, Oxford OX1 3PT, UK BHF Centre of Research Excellence, Oxford
| | - Pawel Swietach
- Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, Parks Road, Oxford OX1 3PT, UK
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30
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Raspe M, Kedziora KM, van den Broek B, Zhao Q, de Jong S, Herz J, Mastop M, Goedhart J, Gadella TWJ, Young IT, Jalink K. siFLIM: single-image frequency-domain FLIM provides fast and photon-efficient lifetime data. Nat Methods 2016; 13:501-4. [DOI: 10.1038/nmeth.3836] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 03/11/2016] [Indexed: 11/09/2022]
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31
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Middelbeek J, Visser D, Henneman L, Kamermans A, Kuipers AJ, Hoogerbrugge PM, Jalink K, van Leeuwen FN. TRPM7 maintains progenitor-like features of neuroblastoma cells: implications for metastasis formation. Oncotarget 2016; 6:8760-76. [PMID: 25797249 PMCID: PMC4496182 DOI: 10.18632/oncotarget.3315] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 02/08/2015] [Indexed: 12/18/2022] Open
Abstract
Neuroblastoma is an embryonal tumor derived from poorly differentiated neural crest cells. Current research is aimed at identifying the molecular mechanisms that maintain the progenitor state of neuroblastoma cells and to develop novel therapeutic strategies that induce neuroblastoma cell differentiation. Mechanisms controlling neural crest development are typically dysregulated during neuroblastoma progression, and provide an appealing starting point for drug target discovery. Transcriptional programs involved in neural crest development act as a context dependent gene regulatory network. In addition to BMP, Wnt and Notch signaling, activation of developmental gene expression programs depends on the physical characteristics of the tissue microenvironment. TRPM7, a mechanically regulated TRP channel with kinase activity, was previously found essential for embryogenesis and the maintenance of undifferentiated neural crest progenitors. Hence, we hypothesized that TRPM7 may preserve progenitor-like, metastatic features of neuroblastoma cells. Using multiple neuroblastoma cell models, we demonstrate that TRPM7 expression closely associates with the migratory and metastatic properties of neuroblastoma cells in vitro and in vivo. Moreover, microarray-based expression profiling on control and TRPM7 shRNA transduced neuroblastoma cells indicates that TRPM7 controls a developmental transcriptional program involving the transcription factor SNAI2. Overall, our data indicate that TRPM7 contributes to neuroblastoma progression by maintaining progenitor-like features.
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Affiliation(s)
- Jeroen Middelbeek
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands
| | - Daan Visser
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Linda Henneman
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Alwin Kamermans
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands
| | - Arthur J Kuipers
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands
| | - Peter M Hoogerbrugge
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands.,Princes Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands
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32
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van den Dries K, Meddens MB, Pandzic E, Joosten B, Slotman JA, Nahidiazar L, Jalink K, Houtsmuller AB, Wisemann PW, Cambi A. From Nanoscale to Mesoscale: Integrating Advanced Microscopy Techniques to Reveal the Ultrastructure and Coordinated Dynamics of Mechanosensory Podosomes. Biophys J 2016. [DOI: 10.1016/j.bpj.2015.11.3312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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33
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Kedziora KM, Leyton-Puig D, Argenzio E, Boumeester AJ, van Butselaar B, Yin T, Wu YI, van Leeuwen FN, Innocenti M, Jalink K, Moolenaar WH. Rapid Remodeling of Invadosomes by Gi-coupled Receptors: DISSECTING THE ROLE OF Rho GTPases. J Biol Chem 2016; 291:4323-33. [PMID: 26740622 DOI: 10.1074/jbc.m115.695940] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Indexed: 01/15/2023] Open
Abstract
Invadosomes are actin-rich membrane protrusions that degrade the extracellular matrix to drive tumor cell invasion. Key players in invadosome formation are c-Src and Rho family GTPases. Invadosomes can reassemble into circular rosette-like superstructures, but the underlying signaling mechanisms remain obscure. Here we show that Src-induced invadosomes in human melanoma cells (A375M and MDA-MB-435) undergo rapid remodeling into dynamic extracellular matrix-degrading rosettes by distinct G protein-coupled receptor agonists, notably lysophosphatidic acid (LPA; acting through the LPA1 receptor) and endothelin. Agonist-induced rosette formation is blocked by pertussis toxin, dependent on PI3K activity and accompanied by localized production of phosphatidylinositol 3,4,5-trisphosphate, whereas MAPK and Ca(2+) signaling are dispensable. Using FRET-based biosensors, we show that LPA and endothelin transiently activate Cdc42 through Gi, concurrent with a biphasic decrease in Rac activity and differential effects on RhoA. Cdc42 activity is essential for rosette formation, whereas G12/13-mediated RhoA-ROCK signaling suppresses the remodeling process. Our results reveal a Gi-mediated Cdc42 signaling axis by which G protein-coupled receptors trigger invadosome remodeling, the degree of which is dictated by the Cdc42-RhoA activity balance.
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Affiliation(s)
| | | | | | | | | | - Taofei Yin
- the Center for Cell Analysis and Modeling, University of Connecticut Health Center, Farmington, Connecticut 06030, and
| | - Yi I Wu
- the Center for Cell Analysis and Modeling, University of Connecticut Health Center, Farmington, Connecticut 06030, and
| | - Frank N van Leeuwen
- the Department of Cell Biology, Radboud University Medical Centre, 6525 GA Nijmegen, The Netherlands
| | - Metello Innocenti
- Division of Molecular Genetics, Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
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34
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Nahidiazar L, Kreft M, van den Broek B, Secades P, Manders EMM, Sonnenberg A, Jalink K. The molecular architecture of hemidesmosomes, as revealed with super-resolution microscopy. J Cell Sci 2015; 128:3714-9. [PMID: 26330528 DOI: 10.1242/jcs.171892] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 08/24/2015] [Indexed: 01/27/2023] Open
Abstract
Hemidesmosomes have been extensively studied with immunofluorescence microscopy, but owing to its limited resolution, the precise organization of hemidesmosomes remains poorly understood. We studied hemidesmosome organization in cultured keratinocytes with two- and three-color super-resolution microscopy. We observed that, in the cell periphery, nascent hemidesmosomes are associated with individual keratin filaments and that β4 integrin (also known as ITGB4) is distributed along, rather than under, keratin filaments. By applying innovative methods to quantify molecular distances, we demonstrate that the hemidesmosomal plaque protein plectin interacts simultaneously and asymmetrically with β4 integrin and keratin. Furthermore, we show that BP180 (BPAG2, also known as collagen XVII) and BP230 (BPAG1e, an epithelial splice variant of dystonin) are characteristically arranged within hemidesmosomes with BP180 surrounding a central core of BP230 molecules. In skin cross-sections, hemidesmosomes of variable sizes could be distinguished with BP230 and plectin occupying a position in between β4 integrin and BP180, and the intermediate filament system. In conclusion, our data provide a detailed view of the molecular architecture of hemidesmosomes in cultured keratinocytes and skin.
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Affiliation(s)
- Leila Nahidiazar
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Maaike Kreft
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Bram van den Broek
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Pablo Secades
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Erik M M Manders
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands Van Leeuwenhoek Centre for Advanced Microscopy, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam1098 XH, The Netherlands
| | - Arnoud Sonnenberg
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
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35
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Kind J, Pagie L, de Vries SS, Nahidiazar L, Dey SS, Bienko M, Zhan Y, Lajoie B, de Graaf CA, Amendola M, Fudenberg G, Imakaev M, Mirny LA, Jalink K, Dekker J, van Oudenaarden A, van Steensel B. Genome-wide maps of nuclear lamina interactions in single human cells. Cell 2015; 163:134-47. [PMID: 26365489 DOI: 10.1016/j.cell.2015.08.040] [Citation(s) in RCA: 296] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/27/2015] [Accepted: 08/12/2015] [Indexed: 12/16/2022]
Abstract
Mammalian interphase chromosomes interact with the nuclear lamina (NL) through hundreds of large lamina-associated domains (LADs). We report a method to map NL contacts genome-wide in single human cells. Analysis of nearly 400 maps reveals a core architecture consisting of gene-poor LADs that contact the NL with high cell-to-cell consistency, interspersed by LADs with more variable NL interactions. The variable contacts tend to be cell-type specific and are more sensitive to changes in genome ploidy than the consistent contacts. Single-cell maps indicate that NL contacts involve multivalent interactions over hundreds of kilobases. Moreover, we observe extensive intra-chromosomal coordination of NL contacts, even over tens of megabases. Such coordinated loci exhibit preferential interactions as detected by Hi-C. Finally, the consistency of NL contacts is inversely linked to gene activity in single cells and correlates positively with the heterochromatic histone modification H3K9me3. These results highlight fundamental principles of single-cell chromatin organization. VIDEO ABSTRACT.
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Affiliation(s)
- Jop Kind
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences) and University Medical Center Utrecht, Cancer Genomics Netherlands, Uppsalalaan 8, 3584CT Utrecht, the Netherlands.
| | - Ludo Pagie
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Sandra S de Vries
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Leila Nahidiazar
- Division of Cell Biology I, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Siddharth S Dey
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences) and University Medical Center Utrecht, Cancer Genomics Netherlands, Uppsalalaan 8, 3584CT Utrecht, the Netherlands
| | - Magda Bienko
- Science for Life Laboratory, Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institute, 171 21 Stockholm, Sweden
| | - Ye Zhan
- Program in Systems Biology, Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605-0103, USA
| | - Bryan Lajoie
- Program in Systems Biology, Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605-0103, USA
| | - Carolyn A de Graaf
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Mario Amendola
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Geoffrey Fudenberg
- Graduate Program in Biophysics, Harvard University, Cambridge, MA 02138, USA
| | - Maxim Imakaev
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Leonid A Mirny
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
| | - Kees Jalink
- Division of Cell Biology I, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Job Dekker
- Howard Hughes Medical Institute, Program in Systems Biology, Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605-0103, USA
| | - Alexander van Oudenaarden
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences) and University Medical Center Utrecht, Cancer Genomics Netherlands, Uppsalalaan 8, 3584CT Utrecht, the Netherlands
| | - Bas van Steensel
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands.
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Isogai T, van der Kammen R, Leyton-Puig D, Kedziora KM, Jalink K, Innocenti M. Initiation of lamellipodia and ruffles involves cooperation between mDia1 and the Arp2/3 complex. J Cell Sci 2015; 128:3796-810. [PMID: 26349808 DOI: 10.1242/jcs.176768] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 09/02/2015] [Indexed: 01/20/2023] Open
Abstract
Protrusion of lamellipodia and ruffles requires polymerization of branched actin filaments by the Arp2/3 complex. Although regulation of Arp2/3 complex activity has been extensively investigated, the mechanism of initiation of lamellipodia and ruffles remains poorly understood. Here, we show that mDia1 acts in concert with the Arp2/3 complex to promote initiation of lamellipodia and ruffles. We find that mDia1 is an epidermal growth factor (EGF)-regulated actin nucleator involved in membrane ruffling using a combination of knockdown and rescue experiments. At the molecular level, mDia1 polymerizes linear actin filaments, activating the Arp2/3 complex, and localizes within nascent and mature membrane ruffles. We employ functional complementation experiments and optogenetics to show that mDia1 cooperates with the Arp2/3 complex in initiating lamellipodia and ruffles. Finally, we show that genetic and pharmacological interference with this cooperation hampers ruffling and cell migration. Thus, we propose that the lamellipodium- and ruffle-initiating machinery consists of two actin nucleators that act sequentially to regulate membrane protrusion and cell migration.
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Affiliation(s)
- Tadamoto Isogai
- Division of Molecular Genetics, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Rob van der Kammen
- Division of Molecular Genetics, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Daniela Leyton-Puig
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Katarzyna M Kedziora
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Kees Jalink
- Division of Cell Biology I, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Metello Innocenti
- Division of Molecular Genetics, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
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Nieuwenhuizen RPJ, Nahidiazar L, Manders EMM, Jalink K, Stallinga S, Rieger B. Co-Orientation: Quantifying Simultaneous Co-Localization and Orientational Alignment of Filaments in Light Microscopy. PLoS One 2015; 10:e0131756. [PMID: 26161965 PMCID: PMC4498647 DOI: 10.1371/journal.pone.0131756] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/08/2015] [Indexed: 11/27/2022] Open
Abstract
Co-localization analysis is a widely used tool to seek evidence for functional interactions between molecules in different color channels in microscopic images. Here we extend the basic co-localization analysis by including the orientations of the structures on which the molecules reside. We refer to the combination of co-localization of molecules and orientational alignment of the structures on which they reside as co-orientation. Because the orientation varies with the length scale at which it is evaluated, we consider this scale as a separate informative dimension in the analysis. Additionally we introduce a data driven method for testing the statistical significance of the co-orientation and provide a method for visualizing the local co-orientation strength in images. We demonstrate our methods on simulated localization microscopy data of filamentous structures, as well as experimental images of similar structures acquired with localization microscopy in different color channels. We also show that in cultured primary HUVEC endothelial cells, filaments of the intermediate filament vimentin run close to and parallel with microtubuli. In contrast, no co-orientation was found between keratin and actin filaments. Co-orientation between vimentin and tubulin was also observed in an endothelial cell line, albeit to a lesser extent, but not in 3T3 fibroblasts. These data therefore suggest that microtubuli functionally interact with the vimentin network in a cell-type specific manner.
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Affiliation(s)
- Robert P. J. Nieuwenhuizen
- Quantitative Imaging group, Department of Imaging Physics, Delft University of Technology, Delft, The Netherlands
| | - Leila Nahidiazar
- Cell Biophysics group, Department of Cell biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Erik M. M. Manders
- Van Leeuwenhoek Centre for Advanced Microscopy, Molecular Cytology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Kees Jalink
- Cell Biophysics group, Department of Cell biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Sjoerd Stallinga
- Quantitative Imaging group, Department of Imaging Physics, Delft University of Technology, Delft, The Netherlands
| | - Bernd Rieger
- Quantitative Imaging group, Department of Imaging Physics, Delft University of Technology, Delft, The Netherlands
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Xu G, Chapman JR, Brandsma I, Yuan J, Mistrik M, Bouwman P, Bartkova J, Gogola E, Warmerdam D, Barazas M, Jaspers JE, Watanabe K, Pieterse M, Kersbergen A, Sol W, Celie PHN, Schouten PC, van den Broek B, Salman A, Nieuwland M, de Rink I, de Ronde J, Jalink K, Boulton SJ, Chen J, van Gent DC, Bartek J, Jonkers J, Borst P, Rottenberg S. REV7 counteracts DNA double-strand break resection and affects PARP inhibition. Nature 2015; 521:541-544. [PMID: 25799992 PMCID: PMC4671316 DOI: 10.1038/nature14328] [Citation(s) in RCA: 433] [Impact Index Per Article: 48.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 02/13/2015] [Indexed: 01/01/2023]
Abstract
Error-free repair of DNA double-strand breaks (DSBs) is achieved by homologous recombination (HR), and BRCA1 is an important factor for this repair pathway. In the absence of BRCA1-mediated HR, the administration of PARP inhibitors induces synthetic lethality of tumour cells of patients with breast or ovarian cancers. Despite the benefit of this tailored therapy, drug resistance can occur by HR restoration. Genetic reversion of BRCA1-inactivating mutations can be the underlying mechanism of drug resistance, but this does not explain resistance in all cases. In particular, little is known about BRCA1-independent restoration of HR. Here we show that loss of REV7 (also known as MAD2L2) in mouse and human cell lines re-establishes CTIP-dependent end resection of DSBs in BRCA1-deficient cells, leading to HR restoration and PARP inhibitor resistance, which is reversed by ATM kinase inhibition. REV7 is recruited to DSBs in a manner dependent on the H2AX-MDC1-RNF8-RNF168-53BP1 chromatin pathway, and seems to block HR and promote end joining in addition to its regulatory role in DNA damage tolerance. Finally, we establish that REV7 blocks DSB resection to promote non-homologous end-joining during immunoglobulin class switch recombination. Our results reveal an unexpected crucial function of REV7 downstream of 53BP1 in coordinating pathological DSB repair pathway choices in BRCA1-deficient cells.
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Affiliation(s)
- Guotai Xu
- Division of Molecular Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - J Ross Chapman
- The Wellcome Trust Centre for Human Genetics, Roosevelt Drive, Oxford, OX3 7BN, United Kingdom
| | - Inger Brandsma
- Department of Genetics, Erasmus, University Medical Center, Rotterdam, The Netherlands
| | - Jingsong Yuan
- Department of Experimental Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Martin Mistrik
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Peter Bouwman
- Division of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | | | - Ewa Gogola
- Division of Molecular Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Daniël Warmerdam
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Marco Barazas
- Division of Molecular Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Janneke E Jaspers
- Division of Molecular Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Kenji Watanabe
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Mark Pieterse
- Department of Experimental Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Ariena Kersbergen
- Division of Molecular Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Wendy Sol
- Division of Molecular Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Patrick H N Celie
- Protein Facility, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Philip C Schouten
- Division of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Bram van den Broek
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Ahmed Salman
- The Wellcome Trust Centre for Human Genetics, Roosevelt Drive, Oxford, OX3 7BN, United Kingdom
| | - Marja Nieuwland
- Deep Sequencing Core Facility, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Iris de Rink
- Deep Sequencing Core Facility, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Jorma de Ronde
- Division of Molecular Carcinogenesis, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Simon J Boulton
- DNA Damage Response Laboratory, London Research Institute, Cancer Research UK, Clare Hall, South Mimms EN6 3LD, UK
| | - Junjie Chen
- Department of Experimental Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Dik C van Gent
- Department of Genetics, Erasmus, University Medical Center, Rotterdam, The Netherlands
| | - Jiri Bartek
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Jos Jonkers
- Division of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Piet Borst
- Division of Molecular Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Sven Rottenberg
- Division of Molecular Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
- Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Laengassstrasse 122, 3012 Bern, Switzerland
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Ketema M, Secades P, Kreft M, Nahidiazar L, Janssen H, Jalink K, de Pereda JM, Sonnenberg A. The rod domain is not essential for the function of plectin in maintaining tissue integrity. Mol Biol Cell 2015; 26:2402-17. [PMID: 25971800 PMCID: PMC4571296 DOI: 10.1091/mbc.e15-01-0043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 05/06/2015] [Indexed: 11/22/2022] Open
Abstract
Plectin is a cytoskeletal linker protein that consists of a central rod domain connecting two globular domains. Rodless plectin is able to functionally compensate for the loss of full-length plectin in mice and, like full-length plectin, is able to form dimers. Epidermolysis bullosa simplex associated with late-onset muscular dystrophy (EBS-MD) is an autosomal recessive disorder resulting from mutations in the plectin gene. The majority of these mutations occur within the large exon 31 encoding the central rod domain and leave the production of a low-level rodless plectin splice variant unaffected. To investigate the function of the rod domain, we generated rodless plectin mice through conditional deletion of exon 31. Rodless plectin mice develop normally without signs of skin blistering or muscular dystrophy. Plectin localization and hemidesmosome organization are unaffected in rodless plectin mice. However, superresolution microscopy revealed a closer juxtaposition of the C-terminus of plectin to the integrin β4 subunit in rodless plectin keratinocytes. Wound healing occurred slightly faster in rodless plectin mice than in wild-type mice, and keratinocytes migration was increased in the absence of the rod domain. The faster migration of rodless plectin keratinocytes is not due to altered biochemical properties because, like full-length plectin, rodless plectin is a dimeric protein. Our data demonstrate that rodless plectin can functionally compensate for the loss of full-length plectin in mice. Thus the low expression level of plectin rather than the absence of the rod domain dictates the development of EBS-MD.
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Affiliation(s)
- Mirjam Ketema
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
| | - Pablo Secades
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
| | - Maaike Kreft
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
| | - Leila Nahidiazar
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
| | - Hans Janssen
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
| | - Kees Jalink
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
| | - Jose M de Pereda
- Instituto de Biología Molecular y Celular del Cancer, University of Salamanca-CSIC, E-37007 Salamanca, Spain
| | - Arnoud Sonnenberg
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
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40
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Rood MTM, Raspe M, ten Hove JB, Jalink K, Velders AH, van Leeuwen FWB. MMP-2/9-Specific Activatable Lifetime Imaging Agent. Sensors (Basel) 2015; 15:11076-91. [PMID: 25985157 PMCID: PMC4481940 DOI: 10.3390/s150511076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 05/01/2015] [Accepted: 05/06/2015] [Indexed: 12/13/2022]
Abstract
Optical (molecular) imaging can benefit from a combination of the high signal-to-background ratio of activatable fluorescence imaging with the high specificity of luminescence lifetime imaging. To allow for this combination, both imaging techniques were integrated in a single imaging agent, a so-called activatable lifetime imaging agent. Important in the design of this imaging agent is the use of two luminophores that are tethered by a specific peptide with a hairpin-motive that ensured close proximity of the two while also having a specific amino acid sequence available for enzymatic cleavage by tumor-related MMP-2/9. Ir(ppy)3 and Cy5 were used because in close proximity the emission intensities of both luminophores were quenched and the influence of Cy5 shortens the Ir(ppy)3 luminescence lifetime from 98 ns to 30 ns. Upon cleavage in vitro, both effects are undone, yielding an increase in Ir(ppy)3 and Cy5 luminescence and a restoration of Ir(ppy)3 luminescence lifetime to 94 ns. As a reference for the luminescence activation, a similar imaging agent with the more common Cy3-Cy5 fluorophore pair was used. Our findings underline that the combination of enzymatic signal activation with lifetime imaging is possible and that it provides a promising method in the design of future disease specific imaging agents.
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Affiliation(s)
- Marcus T M Rood
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden 2300RC, The Netherlands.
| | - Marcel Raspe
- Division of Cell Biology I, Netherlands Cancer Institute, Amsterdam 1066CX, The Netherlands.
| | - Jan Bart ten Hove
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden 2300RC, The Netherlands.
- Laboratory of BioNanoTechnology, Wageningen University, Wageningen 6700EK, The Netherlands.
| | - Kees Jalink
- Division of Cell Biology I, Netherlands Cancer Institute, Amsterdam 1066CX, The Netherlands.
| | - Aldrik H Velders
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden 2300RC, The Netherlands.
- Laboratory of BioNanoTechnology, Wageningen University, Wageningen 6700EK, The Netherlands.
| | - Fijs W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden 2300RC, The Netherlands.
- Laboratory of BioNanoTechnology, Wageningen University, Wageningen 6700EK, The Netherlands.
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Klarenbeek J, Goedhart J, van Batenburg A, Groenewald D, Jalink K. Fourth-generation epac-based FRET sensors for cAMP feature exceptional brightness, photostability and dynamic range: characterization of dedicated sensors for FLIM, for ratiometry and with high affinity. PLoS One 2015; 10:e0122513. [PMID: 25875503 PMCID: PMC4397040 DOI: 10.1371/journal.pone.0122513] [Citation(s) in RCA: 186] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 02/12/2015] [Indexed: 11/17/2022] Open
Abstract
Epac-based FRET sensors have been widely used for the detection of cAMP concentrations in living cells. Originally developed by us as well as others, we have since then reported several important optimizations that make these sensors favourite among many cell biologists. We here report cloning and characterization of our fourth generation of cAMP sensors, which feature outstanding photostability, dynamic range and signal-to-noise ratio. The design is based on mTurquoise2, currently the brightest and most bleaching-resistant donor, and a new acceptor cassette that consists of a tandem of two cp173Venus fluorophores. We also report variants with a single point mutation, Q270E, in the Epac moiety, which decreases the dissociation constant of cAMP from 9.5 to 4 μM, and thus increases the affinity ~ 2.5-fold. Finally, we also prepared and characterized dedicated variants with non-emitting (dark) acceptors for single-wavelength FLIM acquisition that display an exceptional near-doubling of fluorescence lifetime upon saturation of cAMP levels. We believe this generation of cAMP outperforms all other sensors and therefore recommend these sensors for all future studies.
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Affiliation(s)
- Jeffrey Klarenbeek
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands; van Leeuwenhoek Centre of Advanced Microscopy, Amsterdam, The Netherlands
| | - Joachim Goedhart
- Section of Molecular Cytology, Swammerdam Institute for Life Sciences, University of Amsterdam, The Netherlands; van Leeuwenhoek Centre of Advanced Microscopy, Amsterdam, The Netherlands
| | - Aernoud van Batenburg
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands; van Leeuwenhoek Centre of Advanced Microscopy, Amsterdam, The Netherlands
| | - Daniella Groenewald
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands; van Leeuwenhoek Centre of Advanced Microscopy, Amsterdam, The Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands; van Leeuwenhoek Centre of Advanced Microscopy, Amsterdam, The Netherlands
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42
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Korzeniowska B, Raspe M, Wencel D, Woolley R, Jalink K, McDonagh C. Development of organically modified silica nanoparticles for monitoring the intracellular level of oxygen using a frequency-domain FLIM platform. RSC Adv 2015. [DOI: 10.1039/c4ra15742g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The dynamic quenching of luminescence derived from Ru(dpp3)2+-doped ORMOSIL nanoparticles is used for monitoring of the intracellular oxygen concentration.
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Affiliation(s)
- Barbara Korzeniowska
- Optical Sensors Laboratory
- School of Physical Sciences
- Biomedical Diagnostics Institute
- Dublin City University
- Dublin 9
| | - Marcel Raspe
- Department of Cell Biology
- The Netherlands Cancer Institute
- 1066CX Amsterdam
- Netherlands
| | - Dorota Wencel
- Optical Sensors Laboratory
- School of Physical Sciences
- Biomedical Diagnostics Institute
- Dublin City University
- Dublin 9
| | - Robert Woolley
- Optical Sensors Laboratory
- School of Physical Sciences
- Biomedical Diagnostics Institute
- Dublin City University
- Dublin 9
| | - Kees Jalink
- Department of Cell Biology
- The Netherlands Cancer Institute
- 1066CX Amsterdam
- Netherlands
| | - Colette McDonagh
- Optical Sensors Laboratory
- School of Physical Sciences
- Biomedical Diagnostics Institute
- Dublin City University
- Dublin 9
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43
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Visser D, Middelbeek J, van Leeuwen FN, Jalink K. Function and regulation of the channel-kinase TRPM7 in health and disease. Eur J Cell Biol 2014; 93:455-65. [DOI: 10.1016/j.ejcb.2014.07.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/24/2014] [Accepted: 07/01/2014] [Indexed: 11/30/2022] Open
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Jalink K, Adjobo-Hermans MJW. GqPCR-mediated signalling in the spotlight: from visualization towards dissection and quantification. Curr Pharm Biotechnol 2014; 15:893-915. [PMID: 25248560 DOI: 10.2174/1389201015666140922101637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 07/18/2014] [Accepted: 07/24/2014] [Indexed: 11/22/2022]
Abstract
Signals relayed through G protein-coupled receptors (GPCR) play pivotal roles in human physiology and are important drug targets. About 40% of all GPCRs couple to the heterotrimeric G protein Gq. Biochemical studies as well as crystallography have improved our understanding of GqPCRs and their downstream partners. Here we focus on the "functional imaging" tools that have been developed to visualize, dissect and quantify signalling processes at the single living cell level. We provide an overview of the most important developments in readout of signalling by FRET and BRET, as well as of the labelling strategies commonly used to visualize proteins in living cells. In addition, tools that allow manipulation of individual steps, including chemically inducible dimerization and optogenetic tools are covered. Together, these developments will provide unprecedented insights in GqPCR signalling in living cells and model organisms.
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Affiliation(s)
| | - Merel J W Adjobo-Hermans
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands.
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45
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Boto T, Louis T, Jindachomthong K, Jalink K, Tomchik SM. Dopaminergic modulation of cAMP drives nonlinear plasticity across the Drosophila mushroom body lobes. Curr Biol 2014; 24:822-31. [PMID: 24684937 DOI: 10.1016/j.cub.2014.03.021] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 02/11/2014] [Accepted: 03/07/2014] [Indexed: 01/21/2023]
Abstract
BACKGROUND Activity of dopaminergic neurons is necessary and sufficient to evoke learning-related plasticity in neuronal networks that modulate learning. During olfactory classical conditioning, large subsets of dopaminergic neurons are activated, releasing dopamine across broad sets of postsynaptic neurons. It is unclear how such diffuse dopamine release generates the highly localized patterns of plasticity required for memory formation. RESULTS Here we have mapped spatial patterns of dopaminergic modulation of intracellular signaling and plasticity in Drosophila mushroom body (MB) neurons, combining presynaptic thermogenetic stimulation of dopaminergic neurons with postsynaptic functional imaging in vivo. Stimulation of dopaminergic neurons generated increases in cyclic AMP (cAMP) across multiple spatial regions in the MB. However, odor presentation paired with stimulation of dopaminergic neurons evoked plasticity in Ca(2+) responses in discrete spatial patterns. These patterns of plasticity correlated with behavioral requirements for each set of MB neurons in aversive and appetitive conditioning. Finally, broad elevation of cAMP differentially facilitated responses in the gamma lobe, suggesting that it is more sensitive to elevations of cAMP and that it is recruited first into dopamine-dependent memory traces. CONCLUSIONS These data suggest that the spatial pattern of learning-related plasticity is dependent on the postsynaptic neurons' sensitivity to cAMP signaling. This may represent a mechanism through which single-cycle conditioning allocates short-term memory to a specific subset of eligible neurons (gamma neurons).
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Affiliation(s)
- Tamara Boto
- Department of Neuroscience, The Scripps Research Institute, Jupiter, FL 33458, USA
| | - Thierry Louis
- Department of Neuroscience, The Scripps Research Institute, Jupiter, FL 33458, USA
| | | | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Seth M Tomchik
- Department of Neuroscience, The Scripps Research Institute, Jupiter, FL 33458, USA.
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Tame MA, Raaijmakers JA, van den Broek B, Lindqvist A, Jalink K, Medema RH. Astral microtubules control redistribution of dynein at the cell cortex to facilitate spindle positioning. Cell Cycle 2014; 13:1162-70. [PMID: 24553118 PMCID: PMC4013166 DOI: 10.4161/cc.28031] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Cytoplasmic dynein is recruited to the cell cortex in early mitosis, where it can generate pulling forces on astral microtubules to position the mitotic spindle. Recent work has shown that dynein displays a dynamic asymmetric cortical localization, and that dynein recruitment is negatively regulated by spindle pole-proximity. This results in oscillating dynein recruitment to opposite sides of the cortex to center the mitotic spindle. However, although the centrosome-derived signal that promotes displacement of dynein has been identified, it is currently unknown how dynein is re-recruited to the cortex once it has been displaced. Here we show that re-recruitment of cortical dynein requires astral microtubules. We find that microtubules are necessary for the sustained localized enrichment of dynein at the cortex. Furthermore, we show that stabilization of astral microtubules causes spindle misorientation, followed by mispositioning of dynein at the cortex. Thus, our results demonstrate the importance of astral microtubules in the dynamic regulation of cortical dynein recruitment in mitosis.
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Affiliation(s)
- Mihoko A Tame
- Division of Cell Biology; The Netherlands Cancer Institute; Amsterdam, The Netherlands
| | - Jonne A Raaijmakers
- Division of Cell Biology; The Netherlands Cancer Institute; Amsterdam, The Netherlands
| | - Bram van den Broek
- Division of Cell Biology; The Netherlands Cancer Institute; Amsterdam, The Netherlands
| | - Arne Lindqvist
- Department of Cell and Molecular Biology; Karolinska Institutet; Stockholm, Sweden
| | - Kees Jalink
- Division of Cell Biology; The Netherlands Cancer Institute; Amsterdam, The Netherlands
| | - René H Medema
- Division of Cell Biology; The Netherlands Cancer Institute; Amsterdam, The Netherlands
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47
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Hoogendoorn E, Crosby KC, Leyton-Puig D, Breedijk RMP, Jalink K, Gadella TWJ, Postma M. The fidelity of stochastic single-molecule super-resolution reconstructions critically depends upon robust background estimation. Sci Rep 2014; 4:3854. [PMID: 24458236 PMCID: PMC3900998 DOI: 10.1038/srep03854] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 01/07/2014] [Indexed: 11/21/2022] Open
Abstract
The quality of super resolution images obtained by stochastic single-molecule microscopy critically depends on image analysis algorithms. We find that the choice of background estimator is often the most important determinant of reconstruction quality. A variety of techniques have found use, but many have a very narrow range of applicability depending upon the characteristics of the raw data. Importantly, we observe that when using otherwise accurate algorithms, unaccounted background components can give rise to biases on scales defeating the purpose of super-resolution microscopy. We find that a temporal median filter in particular provides a simple yet effective solution to the problem of background estimation, which we demonstrate over a range of imaging modalities and different reconstruction methods.
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Affiliation(s)
- Eelco Hoogendoorn
- 1] Section of Molecular Cytology and Van Leeuwenhoek Centre of Advanced Microscopy, Swammerdam Institute for Life Sciences, University of Amsterdam Science Park 904, NL-1098 XH Amsterdam The Netherlands [2]
| | - Kevin C Crosby
- 1] Section of Molecular Cytology and Van Leeuwenhoek Centre of Advanced Microscopy, Swammerdam Institute for Life Sciences, University of Amsterdam Science Park 904, NL-1098 XH Amsterdam The Netherlands [2] [3]
| | - Daniela Leyton-Puig
- 1] Division of Cell Biology and Van Leeuwenhoek Centre of Advanced Microscopy, The Netherlands Cancer Institute, Amsterdam, The Netherlands [2]
| | - Ronald M P Breedijk
- Section of Molecular Cytology and Van Leeuwenhoek Centre of Advanced Microscopy, Swammerdam Institute for Life Sciences, University of Amsterdam Science Park 904, NL-1098 XH Amsterdam The Netherlands
| | - Kees Jalink
- Division of Cell Biology and Van Leeuwenhoek Centre of Advanced Microscopy, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Theodorus W J Gadella
- Section of Molecular Cytology and Van Leeuwenhoek Centre of Advanced Microscopy, Swammerdam Institute for Life Sciences, University of Amsterdam Science Park 904, NL-1098 XH Amsterdam The Netherlands
| | - Marten Postma
- Section of Molecular Cytology and Van Leeuwenhoek Centre of Advanced Microscopy, Swammerdam Institute for Life Sciences, University of Amsterdam Science Park 904, NL-1098 XH Amsterdam The Netherlands
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48
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Rood MTM, Oikonomou M, Buckle T, Raspe M, Urano Y, Jalink K, Velders AH, van Leeuwen FWB. An activatable, polarity dependent, dual-luminescent imaging agent with a long luminescence lifetime. Chem Commun (Camb) 2014; 50:9733-6. [DOI: 10.1039/c4cc04015e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A combination of two quenching interactions was incorporated in a new activatable imaging agent. Partial and total activation of luminescence can be achieved, as well as luminescence lifetime imaging.
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Affiliation(s)
- Marcus T. M. Rood
- Interventional Molecular Imaging Laboratory
- Department of Radiology
- Leiden University Medical Center
- Leiden, The Netherlands
| | - Maria Oikonomou
- Laboratory of BioNanoTechnology
- Wageningen University
- Wageningen, The Netherlands
| | - Tessa Buckle
- Interventional Molecular Imaging Laboratory
- Department of Radiology
- Leiden University Medical Center
- Leiden, The Netherlands
| | - Marcel Raspe
- Division of Cell Biology I
- Netherlands Cancer Institute
- Amsterdam, The Netherlands
| | - Yasuteru Urano
- Laboratory of Chemical Biology & Molecular Imaging
- Graduate School of Medicine
- The University of Tokyo
- Tokyo, Japan
| | - Kees Jalink
- Division of Cell Biology I
- Netherlands Cancer Institute
- Amsterdam, The Netherlands
| | - Aldrik H. Velders
- Interventional Molecular Imaging Laboratory
- Department of Radiology
- Leiden University Medical Center
- Leiden, The Netherlands
- Laboratory of BioNanoTechnology
| | - Fijs W. B. van Leeuwen
- Interventional Molecular Imaging Laboratory
- Department of Radiology
- Leiden University Medical Center
- Leiden, The Netherlands
- Laboratory of BioNanoTechnology
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49
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Abstract
After providing a brief overview of the basics of fluorescence and FRET, this chapter discusses the most commonly used methods to record FRET. Emphasis is on microscopy methods that are widely used for biosensor imaging. We cover choice of instruments, describe various ways to detect FRET based on intensity as well as on donor lifetime, and provide some guidelines to match particular recording methods with specific scientific experiments. We end with an extensive discussion on further practical considerations that may greatly affect the success of the experiments.
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Affiliation(s)
- J Goedhart
- Section of Molecular Cytology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
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50
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Argenzio E, Margadant C, Leyton-Puig D, Janssen H, Jalink K, Sonnenberg A, Moolenaar WH. CLIC4 regulates cell adhesion and β1 integrin trafficking. J Cell Sci 2014; 127:5189-203. [DOI: 10.1242/jcs.150623] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Chloride intracellular channel (CLIC) protein CLIC4 exists in both soluble and membrane-associated forms, and is implicated in diverse cellular processes, ranging from ion channel formation to intracellular membrane remodeling. CLIC4 is rapidly recruited to the plasma membrane by lysophosphatidic acid (LPA) and serum, suggesting a possible role for CLIC4 in exocytic-endocytic trafficking. However, the function and subcellular target(s) of CLIC4 remain elusive. Here we show that in HeLa and MDA-MB-231 cells, CLIC4 knockdown decreases cell-matrix adhesion, cell spreading and integrin signalling, while increasing cell motility. LPA stimulates the recruitment of CLIC4 to β1 integrins at the plasma membrane and in Rab35-positive endosomes. CLIC4 is required for both the internalization and the serum/LPA-induced recycling of β1 integrins, but not for EGF receptor trafficking. Furthermore, we show that CLIC4 suppresses Rab35 activity and antagonizes Rab35-dependent regulation of β1-integrin trafficking. Our results define CLIC4 as a regulator of Rab35 activity and serum/LPA-dependent integrin trafficking.
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