1
|
Szewczyk-Roszczenko OK, Roszczenko P, Shmakova A, Finiuk N, Holota S, Lesyk R, Bielawska A, Vassetzky Y, Bielawski K. The Chemical Inhibitors of Endocytosis: From Mechanisms to Potential Clinical Applications. Cells 2023; 12:2312. [PMID: 37759535 PMCID: PMC10527932 DOI: 10.3390/cells12182312] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Endocytosis is one of the major ways cells communicate with their environment. This process is frequently hijacked by pathogens. Endocytosis also participates in the oncogenic transformation. Here, we review the approaches to inhibit endocytosis, discuss chemical inhibitors of this process, and discuss potential clinical applications of the endocytosis inhibitors.
Collapse
Affiliation(s)
| | - Piotr Roszczenko
- Department of Biotechnology, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland; (P.R.); (A.B.)
| | - Anna Shmakova
- CNRS, UMR 9018, Institut Gustave Roussy, Université Paris-Saclay, 94800 Villejuif, France;
| | - Nataliya Finiuk
- Department of Regulation of Cell Proliferation and Apoptosis, Institute of Cell Biology of National Academy of Sciences of Ukraine, Drahomanov 14/16, 79005 Lviv, Ukraine;
| | - Serhii Holota
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, 79010 Lviv, Ukraine; (S.H.); (R.L.)
| | - Roman Lesyk
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, 79010 Lviv, Ukraine; (S.H.); (R.L.)
| | - Anna Bielawska
- Department of Biotechnology, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland; (P.R.); (A.B.)
| | - Yegor Vassetzky
- CNRS, UMR 9018, Institut Gustave Roussy, Université Paris-Saclay, 94800 Villejuif, France;
| | - Krzysztof Bielawski
- Department of Synthesis and Technology of Drugs, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland;
| |
Collapse
|
2
|
Lodde V, Garcia Barros R, Terzaghi L, Franciosi F, Luciano AM. Insights on the Role of PGRMC1 in Mitotic and Meiotic Cell Division. Cancers (Basel) 2022; 14:cancers14235755. [PMID: 36497237 PMCID: PMC9736406 DOI: 10.3390/cancers14235755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
During mitosis, chromosome missegregation and cytokinesis defects have been recognized as hallmarks of cancer cells. Cytoskeletal elements composing the spindle and the contractile ring and their associated proteins play crucial roles in the faithful progression of mitotic cell division. The hypothesis that PGRMC1, most likely as a part of a yet-to-be-defined complex, is involved in the regulation of spindle function and, more broadly, the cytoskeletal machinery driving cell division is particularly appealing. Nevertheless, more than ten years after the preliminary observation that PGRMC1 changes its localization dynamically during meiotic and mitotic cell division, this field of research has remained a niche and needs to be fully explored. To encourage research in this fascinating field, in this review, we will recap the current knowledge on PGRMC1 function during mitotic and meiotic cell division, critically highlighting the strengths and limitations of the experimental approaches used so far. We will focus on known interacting partners as well as new putative associated proteins that have recently arisen in the literature and that might support current as well as new hypotheses of a role for PGRMC1 in specific spindle subcompartments, such as the centrosome, kinetochores, and the midzone/midbody.
Collapse
|
3
|
Prichard KL, O'Brien NS, Murcia SR, Baker JR, McCluskey A. Role of Clathrin and Dynamin in Clathrin Mediated Endocytosis/Synaptic Vesicle Recycling and Implications in Neurological Diseases. Front Cell Neurosci 2022; 15:754110. [PMID: 35115907 PMCID: PMC8805674 DOI: 10.3389/fncel.2021.754110] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 12/10/2021] [Indexed: 12/17/2022] Open
Abstract
Endocytosis is a process essential to the health and well-being of cell. It is required for the internalisation and sorting of “cargo”—the macromolecules, proteins, receptors and lipids of cell signalling. Clathrin mediated endocytosis (CME) is one of the key processes required for cellular well-being and signalling pathway activation. CME is key role to the recycling of synaptic vesicles [synaptic vesicle recycling (SVR)] in the brain, it is pivotal to signalling across synapses enabling intracellular communication in the sensory and nervous systems. In this review we provide an overview of the general process of CME with a particular focus on two key proteins: clathrin and dynamin that have a central role to play in ensuing successful completion of CME. We examine these two proteins as they are the two endocytotic proteins for which small molecule inhibitors, often of known mechanism of action, have been identified. Inhibition of CME offers the potential to develop therapeutic interventions into conditions involving defects in CME. This review will discuss the roles and the current scope of inhibitors of clathrin and dynamin, providing an insight into how further developments could affect neurological disease treatments.
Collapse
|
4
|
Carrillo-Garcia J, Herrera-Fernández V, Serra SA, Rubio-Moscardo F, Vogel-Gonzalez M, Doñate-Macian P, Hevia CF, Pujades C, Valverde MA. The mechanosensitive Piezo1 channel controls endosome trafficking for an efficient cytokinetic abscission. SCIENCE ADVANCES 2021; 7:eabi7785. [PMID: 34714681 PMCID: PMC8555900 DOI: 10.1126/sciadv.abi7785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
Mechanical forces are exerted throughout cytokinesis, the final step of cell division. Yet, how forces are transduced and affect the signaling dynamics of cytokinetic proteins remains poorly characterized. We now show that the mechanosensitive Piezo1 channel is activated at the intercellular bridge (ICB) connecting daughter cells to regulate abscission. Inhibition of Piezo1 caused multinucleation both in vitro and in vivo. Piezo1 positioning at the ICB during cytokinesis depends on Pacsin3. Pharmacological and genetic inhibition of Piezo1 or Pacsin3 resulted in mislocation of Rab11-family-interacting protein 3 (Rab11-FIP3) endosomes, apoptosis-linked gene 2-interacting protein X (ALIX), and endosomal sorting complex required for transport III (ESCRT-III). Furthermore, we identified FIP3 as the link between Piezo1-generated Ca2+ signals and ALIX delivery to the ICB, where ALIX recruits the ESCRT-III component charged multivesicular body protein 4B, which promotes abscission. These results provide a different view of how mechanical forces participate in cytokinesis and identify Piezo1 as a key modulator of endosome trafficking.
Collapse
Affiliation(s)
- Julia Carrillo-Garcia
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Víctor Herrera-Fernández
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Selma A. Serra
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Fanny Rubio-Moscardo
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Marina Vogel-Gonzalez
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Pablo Doñate-Macian
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Covadonga F. Hevia
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Cristina Pujades
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Miguel A. Valverde
- Laboratory of Molecular Physiology, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| |
Collapse
|
5
|
Rondelet A, Lin YC, Singh D, Porfetye AT, Thakur HC, Hecker A, Brinkert P, Schmidt N, Bendre S, Müller F, Mazul L, Widlund PO, Bange T, Hiller M, Vetter IR, Bird AW. Clathrin's adaptor interaction sites are repurposed to stabilize microtubules during mitosis. J Cell Biol 2020; 219:133599. [PMID: 31932847 PMCID: PMC7041688 DOI: 10.1083/jcb.201907083] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 10/31/2019] [Accepted: 11/24/2019] [Indexed: 11/22/2022] Open
Abstract
Clathrin ensures mitotic spindle stability and efficient chromosome alignment, independently of its vesicle trafficking function. Although clathrin localizes to the mitotic spindle and kinetochore fiber microtubule bundles, the mechanisms by which clathrin stabilizes microtubules are unclear. We show that clathrin adaptor interaction sites on clathrin heavy chain (CHC) are repurposed during mitosis to directly recruit the microtubule-stabilizing protein GTSE1 to the spindle. Structural analyses reveal that these sites interact directly with clathrin-box motifs on GTSE1. Disruption of this interaction releases GTSE1 from spindles, causing defects in chromosome alignment. Surprisingly, this disruption destabilizes astral microtubules, but not kinetochore-microtubule attachments, and chromosome alignment defects are due to a failure of chromosome congression independent of kinetochore-microtubule attachment stability. GTSE1 recruited to the spindle by clathrin stabilizes microtubules by inhibiting the microtubule depolymerase MCAK. This work uncovers a novel role of clathrin adaptor-type interactions to stabilize nonkinetochore fiber microtubules to support chromosome congression, defining for the first time a repurposing of this endocytic interaction mechanism during mitosis.
Collapse
Affiliation(s)
- Arnaud Rondelet
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Yu-Chih Lin
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Divya Singh
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | | | - Harish C Thakur
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Andreas Hecker
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Pia Brinkert
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Nadine Schmidt
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Shweta Bendre
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | | | - Lisa Mazul
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Per O Widlund
- Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Tanja Bange
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | - Michael Hiller
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany.,Max Planck Institute for the Physics of Complex Systems, Dresden, Germany.,Center for Systems Biology, Dresden, Germany
| | - Ingrid R Vetter
- Max Planck Institute of Molecular Physiology, Dortmund, Germany
| | | |
Collapse
|
6
|
Zanzoni A, Ribeiro DM, Brun C. Understanding protein multifunctionality: from short linear motifs to cellular functions. Cell Mol Life Sci 2019; 76:4407-4412. [PMID: 31432235 PMCID: PMC11105236 DOI: 10.1007/s00018-019-03273-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 08/05/2019] [Accepted: 08/12/2019] [Indexed: 12/28/2022]
Abstract
Moonlighting proteins perform multiple unrelated functions without any change in polypeptide sequence. They can coordinate cellular activities, serving as switches between pathways and helping to respond to changes in the cellular environment. Therefore, regulation of the multiple protein activities, in space and time, is likely to be important for the homeostasis of biological systems. Some moonlighting proteins may perform their multiple functions simultaneously while others alternate between functions due to certain triggers. The switch of the moonlighting protein's functions can be regulated by several distinct factors, including the binding of other molecules such as proteins. We here review the approaches used to identify moonlighting proteins and existing repositories. We particularly emphasise the role played by short linear motifs and PTMs as regulatory switches of moonlighting functions.
Collapse
Affiliation(s)
- Andreas Zanzoni
- Aix Marseille Univ, INSERM, TAGC, UMR_S1090, Marseille, France
| | - Diogo M Ribeiro
- Aix Marseille Univ, INSERM, TAGC, UMR_S1090, Marseille, France
| | - Christine Brun
- Aix Marseille Univ, INSERM, TAGC, UMR_S1090, Marseille, France.
- CNRS, Marseille, France.
| |
Collapse
|
7
|
Yabuno Y, Uchihashi T, Sasakura T, Shimizu H, Naito Y, Fukushima K, Ota K, Kogo M, Nojima H, Yabuta N. Clathrin heavy chain phosphorylated at T606 plays a role in proper cell division. Cell Cycle 2019; 18:1976-1994. [PMID: 31272276 PMCID: PMC6681784 DOI: 10.1080/15384101.2019.1637201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/13/2019] [Accepted: 06/24/2019] [Indexed: 10/26/2022] Open
Abstract
Clathrin regulates mitotic progression, in addition to membrane trafficking. However, the detailed regulatory mechanisms of clathrin during mitosis remain elusive. Here, we demonstrate novel regulation of clathrin during mitotic phase of the cell cycle. Clathrin heavy chain (CHC) was phosphorylated at T606 by its association partner cyclin G-associated kinase (GAK). This phosphorylation was required for proper cell proliferation and tumor growth of cells implanted into nude mice. Immunofluorescence analysis showed that the localization of CHC-pT606 signals changed during mitosis. CHC-pT606 signals localized in the nucleus and at the centrosome during interphase, whereas CHC signals were mostly cytoplasmic. Co-immunoprecipitation suggested that CHC formed a complex with GAK and polo-like kinase 1 (PLK1). Depletion of GAK using siRNA induced metaphase arrest and aberrant localization of CHC-pT606, which abolished Kiz-pT379 (as a phosphorylation target of PLK1) signals on chromatin at metaphase. Taken together, we propose that the GAK_CHC-pT606_PLK1_Kiz-pT379 axis plays a role in proliferation of cancer cells.
Collapse
Affiliation(s)
- Yusuke Yabuno
- First Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Osaka University, Osaka, Japan
| | - Toshihiro Uchihashi
- First Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Osaka University, Osaka, Japan
| | - Towa Sasakura
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Hiroyuki Shimizu
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Yoko Naito
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Aichi, Japan
| | - Kohshiro Fukushima
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Kaori Ota
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Mikihiko Kogo
- First Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Osaka University, Osaka, Japan
| | - Hiroshi Nojima
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Norikazu Yabuta
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| |
Collapse
|
8
|
Dynamin-Like Protein B of Dictyostelium Contributes to Cytokinesis Cooperatively with Other Dynamins. Cells 2019; 8:cells8080781. [PMID: 31357517 PMCID: PMC6721605 DOI: 10.3390/cells8080781] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/19/2019] [Accepted: 07/25/2019] [Indexed: 01/31/2023] Open
Abstract
Dynamin is a large GTPase responsible for diverse cellular processes, such as endocytosis, division of organelles, and cytokinesis. The social amoebozoan, Dictyostelium discoideum, has five dynamin-like proteins: dymA, dymB, dlpA, dlpB, and dlpC. DymA, dlpA, or dlpB-deficient cells exhibited defects in cytokinesis. DlpA and dlpB were found to colocalize at cleavage furrows from the early phase, and dymA localized at the intercellular bridge connecting the two daughter cells, indicating that these dynamins contribute to cytokinesis at distinct dividing stages. Total internal reflection fluorescence microscopy revealed that dlpA and dlpB colocalized at individual dots at the furrow cortex. However, dlpA and dlpB did not colocalize with clathrin, suggesting that they are not involved in clathrin-mediated endocytosis. The fact that dlpA did not localize at the furrow in dlpB null cells and vice versa, as well as other several lines of evidence, suggests that hetero-oligomerization of dlpA and dlpB is required for them to bind to the furrow. The hetero-oligomers directly or indirectly associate with actin filaments, stabilizing them in the contractile rings. Interestingly, dlpA, but not dlpB, accumulated at the phagocytic cups independently of dlpB. Our results suggest that the hetero-oligomers of dlpA and dlpB contribute to cytokinesis cooperatively with dymA.
Collapse
|
9
|
Gerber D, Ghidinelli M, Tinelli E, Somandin C, Gerber J, Pereira JA, Ommer A, Figlia G, Miehe M, Nägeli LG, Suter V, Tadini V, Sidiropoulos PNM, Wessig C, Toyka KV, Suter U. Schwann cells, but not Oligodendrocytes, Depend Strictly on Dynamin 2 Function. eLife 2019; 8:e42404. [PMID: 30648534 PMCID: PMC6335055 DOI: 10.7554/elife.42404] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 12/31/2018] [Indexed: 12/13/2022] Open
Abstract
Myelination requires extensive plasma membrane rearrangements, implying that molecules controlling membrane dynamics play prominent roles. The large GTPase dynamin 2 (DNM2) is a well-known regulator of membrane remodeling, membrane fission, and vesicular trafficking. Here, we genetically ablated Dnm2 in Schwann cells (SCs) and in oligodendrocytes of mice. Dnm2 deletion in developing SCs resulted in severely impaired axonal sorting and myelination onset. Induced Dnm2 deletion in adult SCs caused a rapidly-developing peripheral neuropathy with abundant demyelination. In both experimental settings, mutant SCs underwent prominent cell death, at least partially due to cytokinesis failure. Strikingly, when Dnm2 was deleted in adult SCs, non-recombined SCs still expressing DNM2 were able to remyelinate fast and efficiently, accompanied by neuropathy remission. These findings reveal a remarkable self-healing capability of peripheral nerves that are affected by SC loss. In the central nervous system, however, we found no major defects upon Dnm2 deletion in oligodendrocytes.
Collapse
Affiliation(s)
- Daniel Gerber
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Monica Ghidinelli
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Elisa Tinelli
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Christian Somandin
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Joanne Gerber
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Jorge A Pereira
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Andrea Ommer
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Gianluca Figlia
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Michaela Miehe
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Lukas G Nägeli
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Vanessa Suter
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Valentina Tadini
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Páris NM Sidiropoulos
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| | - Carsten Wessig
- Department of NeurologyUniversity Hospital of Würzburg, University of WürzburgWürzburgGermany
| | - Klaus V Toyka
- Department of NeurologyUniversity Hospital of Würzburg, University of WürzburgWürzburgGermany
| | - Ueli Suter
- Department of BiologyInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH ZurichZurichSwitzerland
| |
Collapse
|
10
|
Bond MJ, Bleiler M, Harrison LE, Scocchera EW, Nakanishi M, G-Dayanan N, Keshipeddy S, Rosenberg DW, Wright DL, Giardina C. Spindle Assembly Disruption and Cancer Cell Apoptosis with a CLTC-Binding Compound. Mol Cancer Res 2018; 16:1361-1372. [PMID: 29769406 DOI: 10.1158/1541-7786.mcr-18-0178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/05/2018] [Accepted: 04/25/2018] [Indexed: 11/16/2022]
Abstract
AK3 compounds are mitotic arrest agents that induce high levels of γH2AX during mitosis and apoptosis following release from arrest. We synthesized a potent AK3 derivative, AK306, that induced arrest and apoptosis of the HCT116 colon cancer cell line with an EC50 of approximately 50 nmol/L. AK306 was active on a broad spectrum of cancer cell lines with total growth inhibition values ranging from approximately 25 nmol/L to 25 μmol/L. Using biotin and BODIPY-linked derivatives of AK306, binding to clathrin heavy chain (CLTC/CHC) was observed, a protein with roles in endocytosis and mitosis. AK306 inhibited mitosis and endocytosis, while disrupting CHC cellular localization. Cells arrested in mitosis by AK306 showed the formation of multiple microtubule-organizing centers consisting of pericentrin, γ-tubulin, and Aurora A foci, without apparent centrosome amplification. Cells released from AK306 arrest were unable to form bipolar spindles, unlike nocodazole-released cells that reformed spindles and completed division. Like AK306, CHC siRNA knockdown disrupted spindle formation and activated p53. A short-term (3-day) treatment of tumor-bearing APC-mutant mice with AK306 increased apoptosis in tumors, but not normal mucosa. These findings indicate that targeting the mitotic CHC complex can selectively induce apoptosis and may have therapeutic value.Implication: Disruption of clathrin with a small-molecule inhibitor, AK306, selectively induces apoptosis in cancer cells by disrupting bipolar spindle formation. Mol Cancer Res; 16(9); 1361-72. ©2018 AACR.
Collapse
Affiliation(s)
- Michael J Bond
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut.,Department of Pharmacology, Yale University, New Haven, Connecticut
| | - Marina Bleiler
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut
| | - Lauren E Harrison
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut
| | - Eric W Scocchera
- Department of Medicinal Chemistry, University of Connecticut, Storrs, Connecticut
| | - Masako Nakanishi
- Center for Molecular Oncology, UConn Health, Farmington, Connecticut
| | - Narendran G-Dayanan
- Department of Medicinal Chemistry, University of Connecticut, Storrs, Connecticut
| | - Santosh Keshipeddy
- Department of Medicinal Chemistry, University of Connecticut, Storrs, Connecticut
| | | | - Dennis L Wright
- Department of Medicinal Chemistry, University of Connecticut, Storrs, Connecticut
| | - Charles Giardina
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut.
| |
Collapse
|
11
|
|
12
|
Li L, Han L, Zhang J, Liu X, Ma R, Hou X, Ge J, Wang Q. Epsin2 promotes polarity establishment and meiotic division through activating Cdc42 in mouse oocyte. Oncotarget 2018; 7:50927-50936. [PMID: 27463009 PMCID: PMC5239448 DOI: 10.18632/oncotarget.10815] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 07/14/2016] [Indexed: 01/04/2023] Open
Abstract
Epsins are a conserved family of endocytic adaptors essential for diverse biological events. However, its role in oocytes remains completely unknown. Here, we report that specific depletion of Epsin2 in mouse oocytes significantly disrupts meiotic progression. Confocal microscopy reveals that Epsin2 knockdown results in the failure of actin cap formation and polar body extrusion during meiosis, indicative of the importance of Epsin2 in polarity establishment and cytokinesis. In addition, spindle defects and chromosome misalignment are readily observed in oocytes depleted of Epsin2. Moreover, we find that Epsin2 knockdown markedly decreases the activity of Cdc42 in oocytes and importantly, that the dominant-positive mutant of Cdc42 (Cdc42Q61L) is capable of partially rescuing the deficient phenotypes of Epsin2-knockdown oocytes. Together, our data identify Epsin2 as a novel player in regulating oocyte maturation, and demonstrate that Epsin2 promotes polarity establishment and meiotic division via activating Cdc42.
Collapse
Affiliation(s)
- Ling Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Longsen Han
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Jiaqi Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Xiaohui Liu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China.,College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Rujun Ma
- Center of Reproductive Medicine, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Xiaojing Hou
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Juan Ge
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Qiang Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| |
Collapse
|
13
|
Gulluni F, Martini M, Hirsch E. Cytokinetic Abscission: Phosphoinositides and ESCRTs Direct the Final Cut. J Cell Biochem 2017; 118:3561-3568. [PMID: 28419521 DOI: 10.1002/jcb.26066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 04/14/2017] [Indexed: 01/23/2023]
Abstract
Cytokinetic abscission involves the fine and regulated recruitment of membrane remodeling proteins that participate in the abscission of the intracellular bridge that connects the two dividing cells. This essential process is mediated by the concomitant activity of the endosomal sorting complex required for transport (ESCRT) and the vesicular trafficking directed to the midbody. Phosphoinositides (PtdIns), produced at plasma membrane, and endosomes, act as molecular intermediates by recruiting effector proteins involved in multiple cellular processes, such as intracellular signaling, endo- and exo-cytosis, and membrane remodeling events. Emerging evidences suggest that PtdIns have an active role in recruiting key elements that control the stability and the remodeling of the cytoskeleton from the furrow ingression to the abscission, at the end of cytokinesis. Accordingly, a possible concomitant and coordinated activity between PtdIns production and ESCRT machinery assembly could also exist and recent findings are pointing the attention on poorly understood ESCRT subunits potentially able to associate with PtdIns rich membranes. Although further studies are required to link PtdIns to ESCRT machinery during abscission, this might represent a promising field of study. J. Cell. Biochem. 118: 3561-3568, 2017. © 2017 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Federico Gulluni
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Miriam Martini
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Emilio Hirsch
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| |
Collapse
|
14
|
Liu AP, Botelho RJ, Antonescu CN. The big and intricate dreams of little organelles: Embracing complexity in the study of membrane traffic. Traffic 2017; 18:567-579. [DOI: 10.1111/tra.12497] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 05/30/2017] [Accepted: 05/30/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Allen P. Liu
- Department of Mechanical Engineering University of Michigan Ann Arbor Michigan
- Department of Biomedical Engineering University of Michigan Ann Arbor Michigan
- Cellular and Molecular Biology Program University of Michigan Ann Arbor Michigan
- Biophysics Program University of Michigan Ann Arbor Michigan
| | - Roberto J. Botelho
- The Graduate Program in Molecular Science and Department of Chemistry and Biology Ryerson University Toronto Canada
| | - Costin N. Antonescu
- The Graduate Program in Molecular Science and Department of Chemistry and Biology Ryerson University Toronto Canada
- Keenan Research Centre for Biomedical Science St. Michael's Hospital Toronto Canada
| |
Collapse
|
15
|
Lasič E, Stenovec M, Kreft M, Robinson PJ, Zorec R. Dynamin regulates the fusion pore of endo- and exocytotic vesicles as revealed by membrane capacitance measurements. Biochim Biophys Acta Gen Subj 2017; 1861:2293-2303. [PMID: 28669852 DOI: 10.1016/j.bbagen.2017.06.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 05/24/2017] [Accepted: 06/27/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Dynamin is a multidomain GTPase exhibiting mechanochemical and catalytic properties involved in vesicle scission from the plasmalemma during endocytosis. New evidence indicates that dynamin is also involved in exocytotic release of catecholamines, suggesting the existence of a dynamin-regulated structure that couples endo- to exocytosis. METHODS Thus we here employed high-resolution cell-attached capacitance measurements and super-resolution structured illumination microscopy to directly examine single vesicle interactions with the plasmalemma in cultured rat astrocytes treated with distinct pharmacological modulators of dynamin activity. Fluorescent dextrans and the lipophilic plasmalemmal marker DiD were utilized to monitor uptake and distribution of vesicles in the peri-plasmalemmal space and in the cell cytosol. RESULTS Dynamin inhibition with Dynole™-34-2 and Dyngo™-4a prevented vesicle internalization into the cytosol and decreased fusion pore conductance of vesicles that remained attached to the plasmalemma via a narrow fusion pore that lapsed into a state of repetitive opening and closing - flickering. In contrast, the dynamin activator Ryngo™-1-23 promoted vesicle internalization and favored fusion pore closure by prolonging closed and shortening open fusion pore dwell times. Immunocytochemical staining revealed dextran uptake into dynamin-positive vesicles and increased dextran uptake into Syt4- and VAMP2-positive vesicles after dynamin inhibition, indicating prolonged retention of these vesicles at the plasmalemma. CONCLUSIONS Our results have provided direct evidence for a role of dynamin in regulation of fusion pore geometry and kinetics of endo- and exocytotic vesicles, indicating that both share a common dynamin-regulated structural intermediate, the fusion pore.
Collapse
Affiliation(s)
- Eva Lasič
- Laboratory of Neuroendocrinology-Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia
| | - Matjaž Stenovec
- Laboratory of Neuroendocrinology-Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia; Celica Biomedical, Tehnološki Park 24, 1000 Ljubljana, Slovenia.
| | - Marko Kreft
- Laboratory of Neuroendocrinology-Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia; Celica Biomedical, Tehnološki Park 24, 1000 Ljubljana, Slovenia; University of Ljubljana, Biotechnical Faculty, Department of Biology, CPAE, Večna pot 111, 1000 Ljubljana, Slovenia
| | - Phillip J Robinson
- Children's Medical Research Institute, The University of Sydney, Australia
| | - Robert Zorec
- Laboratory of Neuroendocrinology-Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia; Celica Biomedical, Tehnološki Park 24, 1000 Ljubljana, Slovenia.
| |
Collapse
|
16
|
Aggarwal A, Hitchen TL, Ootes L, McAllery S, Wong A, Nguyen K, McCluskey A, Robinson PJ, Turville SG. HIV infection is influenced by dynamin at 3 independent points in the viral life cycle. Traffic 2017; 18:392-410. [PMID: 28321960 DOI: 10.1111/tra.12481] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 03/16/2017] [Accepted: 03/16/2017] [Indexed: 12/19/2022]
Abstract
CD4 T cells are important cellular targets for HIV-1, yet the primary site of HIV fusion remains unresolved. Candidate fusion sites are either the plasma membrane or from within endosomes. One area of investigation compounding the controversy of this field, is the role of the protein dynamin in the HIV life cycle. To understand the role of dynamin in primary CD4 T cells we combined dynamin inhibition with a series of complementary assays based on single particle tracking, HIV fusion, detection of HIV DNA products and active viral transcription. We identify 3 levels of dynamin influence on the HIV life cycle. Firstly, dynamin influences productive infection by preventing cell cycle progression. Secondly, dynamin influences endocytosis rates and increases the probability of endosomal fusion. Finally, we provide evidence in resting CD4 T cells that dynamin directly regulates the HIV fusion reaction at the plasma membrane. We confirm this latter observation using 2 divergent dynamin modulating compounds, one that enhances dynamin conformations associated with dynamin ring formation (ryngo-1-23) and the other that preferentially targets dynamin conformations that appear in helices (dyngo-4a). This in-depth understanding of dynamin's roles in HIV infection clarifies recent controversies and furthermore provides evidence for dynamin regulation specifically in the HIV fusion reaction.
Collapse
Affiliation(s)
- Anupriya Aggarwal
- The Kirby Institute, University of New South Wales, New South Wales, Australia
| | - Tina L Hitchen
- The Kirby Institute, University of New South Wales, New South Wales, Australia
| | - Lars Ootes
- The Kirby Institute, University of New South Wales, New South Wales, Australia
| | - Samantha McAllery
- The Kirby Institute, University of New South Wales, New South Wales, Australia
| | - Andrew Wong
- The Kirby Institute, University of New South Wales, New South Wales, Australia
| | - Khanh Nguyen
- The Kirby Institute, University of New South Wales, New South Wales, Australia
| | - Adam McCluskey
- Centre for Chemical Biology, Chemistry, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, Australia
| | - Phillip J Robinson
- Children's Medical Research Institute, The University of Sydney, New South Wales, Australia
| | - Stuart G Turville
- The Kirby Institute, University of New South Wales, New South Wales, Australia
| |
Collapse
|
17
|
Robertson MJ, Horatscheck A, Sauer S, von Kleist L, Baker JR, Stahlschmidt W, Nazaré M, Whiting A, Chau N, Robinson PJ, Haucke V, McCluskey A. 5-Aryl-2-(naphtha-1-yl)sulfonamido-thiazol-4(5H)-ones as clathrin inhibitors. Org Biomol Chem 2016; 14:11266-11278. [PMID: 27853797 DOI: 10.1039/c6ob02308h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of a (Z)-5-((6,8-dichloro-4-oxo-4H-chromen-3-yl)methylene)-2-thioxothiazolidin-4-one (2), rhodanine-based lead that led to the Pitstop® 2 family of clathrin inhibitors is described herein. Head group substitution and bioisosteric replacement of the rhodanine core with a 2-aminothiazol-4(5H)-one scaffold eliminated off target dynamin activity. A series of N-substituents gave first phenylglycine (20, IC50 ∼ 20 μM) then phenyl (25, IC50 ∼ 7.1 μM) and 1-napthyl sulfonamide (26, Pitstop® 2 compound, IC50 ∼ 1.9 μM) analogues with good activity, validating this approach. A final library exploring the head group resulted in three analogues displaying either slight improvements or comparable activity (33, 38, and 29 with IC50 ∼ 1.4, 1.6 and 1.8 μM respectively) and nine others with IC50 < 10 μM. These results were rationalized using in silico docking studies. Docking studies predicted enhanced Pitstop® 2 family binding, not a loss of binding, within the Pistop® groove of the reported clathrin mutant invalidating recent assumptions of poor selectivity for this family of clathrin inhibitors.
Collapse
Affiliation(s)
- Mark J Robertson
- Chemistry, Priority Research Centre for Chemical Biology, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
| | - André Horatscheck
- Leibniz Institut für Molekulare Pharmakologie & Freie Universität Berlin, Robert-Rössle-Strasse 10, 13125 Berlin, Germany
| | - Samantha Sauer
- Chemistry, Priority Research Centre for Chemical Biology, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
| | - Lisa von Kleist
- Leibniz Institut für Molekulare Pharmakologie & Freie Universität Berlin, Robert-Rössle-Strasse 10, 13125 Berlin, Germany
| | - Jennifer R Baker
- Chemistry, Priority Research Centre for Chemical Biology, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
| | - Wiebke Stahlschmidt
- Leibniz Institut für Molekulare Pharmakologie & Freie Universität Berlin, Robert-Rössle-Strasse 10, 13125 Berlin, Germany
| | - Marc Nazaré
- Leibniz Institut für Molekulare Pharmakologie & Freie Universität Berlin, Robert-Rössle-Strasse 10, 13125 Berlin, Germany
| | - Ainslie Whiting
- Cell Signaling Unit, Children's Medical Research Institute, The University of Sydney, Sydney, NSW 2145, Australia
| | - Ngoc Chau
- Cell Signaling Unit, Children's Medical Research Institute, The University of Sydney, Sydney, NSW 2145, Australia
| | - Phillip J Robinson
- Cell Signaling Unit, Children's Medical Research Institute, The University of Sydney, Sydney, NSW 2145, Australia
| | - Volker Haucke
- Leibniz Institut für Molekulare Pharmakologie & Freie Universität Berlin, Robert-Rössle-Strasse 10, 13125 Berlin, Germany
| | - Adam McCluskey
- Chemistry, Priority Research Centre for Chemical Biology, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
| |
Collapse
|
18
|
αTAT1 downregulation induces mitotic catastrophe in HeLa and A549 cells. Cell Death Discov 2016; 2:16006. [PMID: 27551500 PMCID: PMC4979442 DOI: 10.1038/cddiscovery.2016.6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 01/04/2016] [Accepted: 01/06/2016] [Indexed: 02/06/2023] Open
Abstract
α-Tubulin acetyltransferase 1 (αTAT1) controls reversible acetylation on Lys40 of α-tubulin and modulates multiple cellular functions. αTAT1 depletion induced morphological defects of touch receptor neurons in Caenorhabditis elegans and impaired cell adhesion and contact inhibition in mouse embryonic fibroblasts, however, no morphological or proliferation defects in human RPE-hTERT cells were found after αTAT1-specific siRNA treatment. Here, we compared the effect of three αTAT1-specific shRNAs on proliferation and morphology in two human cell lines, HeLa and A549. The more efficient two shRNAs induced mitotic catastrophe in both cell lines and the most efficient one also decreased F-actin and focal adhesions. Further analysis revealed that αTAT1 downregulation increased γ-H2AX, but not other DNA damage markers p-CHK1 and p-CHK2, along with marginal change in microtubule outgrowth speed and inter-kinetochore distance. Overexpression of αTAT1 could not precisely mimic the distribution and concentration of endogenous acetylated α-tubulin (Ac-Tu), although no overt phenotype change was observed, meanwhile, this could not completely prevent αTAT1 downregulation-induced deficiencies. We therefore conclude that efficient αTAT1 downregulation could impair actin architecture and induce mitotic catastrophe in HeLa and A549 cells through mechanisms partly independent of Ac-Tu.
Collapse
|
19
|
Pham K, Shimoni R, Charnley M, Ludford-Menting MJ, Hawkins ED, Ramsbottom K, Oliaro J, Izon D, Ting SB, Reynolds J, Lythe G, Molina-Paris C, Melichar H, Robey E, Humbert PO, Gu M, Russell SM. Asymmetric cell division during T cell development controls downstream fate. J Cell Biol 2015; 210:933-50. [PMID: 26370500 PMCID: PMC4576854 DOI: 10.1083/jcb.201502053] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
T cell precursors undergo asymmetric cell division after T cell receptor genomic recombination, with stromal cell cues controlling the differential inheritance of fate determinants Numb and α-Adaptin by the daughters of a dividing DN3a T cell precursor. During mammalian T cell development, the requirement for expansion of many individual T cell clones, rather than merely expansion of the entire T cell population, suggests a possible role for asymmetric cell division (ACD). We show that ACD of developing T cells controls cell fate through differential inheritance of cell fate determinants Numb and α-Adaptin. ACD occurs specifically during the β-selection stage of T cell development, and subsequent divisions are predominantly symmetric. ACD is controlled by interaction with stromal cells and chemokine receptor signaling and uses a conserved network of polarity regulators. The disruption of polarity by deletion of the polarity regulator, Scribble, or the altered inheritance of fate determinants impacts subsequent fate decisions to influence the numbers of DN4 cells arising after the β-selection checkpoint. These findings indicate that ACD enables the thymic microenvironment to orchestrate fate decisions related to differentiation and self-renewal.
Collapse
Affiliation(s)
- Kim Pham
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia Centre for Micro-Photonics, Faculty of Science, Engineering, and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Raz Shimoni
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia Centre for Micro-Photonics, Faculty of Science, Engineering, and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Mirren Charnley
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia Centre for Micro-Photonics, Faculty of Science, Engineering, and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia Industrial Research Institute Swinburne, Faculty of Science, Engineering, and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Mandy J Ludford-Menting
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia Centre for Micro-Photonics, Faculty of Science, Engineering, and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Edwin D Hawkins
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Kelly Ramsbottom
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Jane Oliaro
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria 3010, Australia
| | - David Izon
- St. Vincent's Institute of Medical Research, Fitzroy, Victoria 3065, Australia
| | - Stephen B Ting
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Joseph Reynolds
- Department of Applied Mathematics, School of Mathematics, University of Leeds, Leeds LS2 9JT, England, UK
| | - Grant Lythe
- Department of Applied Mathematics, School of Mathematics, University of Leeds, Leeds LS2 9JT, England, UK
| | - Carmen Molina-Paris
- Department of Applied Mathematics, School of Mathematics, University of Leeds, Leeds LS2 9JT, England, UK
| | - Heather Melichar
- Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720
| | - Ellen Robey
- Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720
| | - Patrick O Humbert
- Cell Cycle and Cancer Genetics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia Department of Pathology, University of Melbourne, Parkville, Victoria 3010, Australia Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria 3010, Australia Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Min Gu
- Centre for Micro-Photonics, Faculty of Science, Engineering, and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Sarah M Russell
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia Centre for Micro-Photonics, Faculty of Science, Engineering, and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia Department of Pathology, University of Melbourne, Parkville, Victoria 3010, Australia Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria 3010, Australia
| |
Collapse
|
20
|
Billcliff PG, Noakes CJ, Mehta ZB, Yan G, Mak L, Woscholski R, Lowe M. OCRL1 engages with the F-BAR protein pacsin 2 to promote biogenesis of membrane-trafficking intermediates. Mol Biol Cell 2015; 27:90-107. [PMID: 26510499 PMCID: PMC4694765 DOI: 10.1091/mbc.e15-06-0329] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 10/23/2015] [Indexed: 12/26/2022] Open
Abstract
Mutation of the inositol 5-phosphatase OCRL1 causes Lowe syndrome and Dent-2 disease. Loss of OCRL1 function perturbs several cellular processes, including membrane traffic, but the underlying mechanisms remain poorly defined. Here we show that OCRL1 is part of the membrane-trafficking machinery operating at the trans-Golgi network (TGN)/endosome interface. OCRL1 interacts via IPIP27A with the F-BAR protein pacsin 2. OCRL1 and IPIP27A localize to mannose 6-phosphate receptor (MPR)-containing trafficking intermediates, and loss of either protein leads to defective MPR carrier biogenesis at the TGN and endosomes. OCRL1 5-phosphatase activity, which is membrane curvature sensitive, is stimulated by IPIP27A-mediated engagement of OCRL1 with pacsin 2 and promotes scission of MPR-containing carriers. Our data indicate a role for OCRL1, via IPIP27A, in regulating the formation of pacsin 2-dependent trafficking intermediates and reveal a mechanism for coupling PtdIns(4,5)P2 hydrolysis with carrier biogenesis on endomembranes.
Collapse
Affiliation(s)
- Peter G Billcliff
- Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, United Kingdom
| | - Christopher J Noakes
- Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, United Kingdom
| | - Zenobia B Mehta
- Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, United Kingdom
| | - Guanhua Yan
- Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, United Kingdom
| | - LokHang Mak
- Department of Chemistry, Imperial College, London SW7 2AZ, United Kingdom
| | - Rudiger Woscholski
- Department of Chemistry, Imperial College, London SW7 2AZ, United Kingdom
| | - Martin Lowe
- Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, United Kingdom
| |
Collapse
|
21
|
Brodsky FM, Sosa RT, Ybe JA, O'Halloran TJ. Unconventional functions for clathrin, ESCRTs, and other endocytic regulators in the cytoskeleton, cell cycle, nucleus, and beyond: links to human disease. Cold Spring Harb Perspect Biol 2014; 6:a017004. [PMID: 25183831 DOI: 10.1101/cshperspect.a017004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The roles of clathrin, its regulators, and the ESCRT (endosomal sorting complex required for transport) proteins are well defined in endocytosis. These proteins can also participate in intracellular pathways that are independent of endocytosis and even independent of the membrane trafficking function of these proteins. These nonendocytic functions involve unconventional biochemical interactions for some endocytic regulators, but can also exploit known interactions for nonendocytic functions. The molecular basis for the involvement of endocytic regulators in unconventional functions that influence the cytoskeleton, cell cycle, signaling, and gene regulation are described here. Through these additional functions, endocytic regulators participate in pathways that affect infection, glucose metabolism, development, and cellular transformation, expanding their significance in human health and disease.
Collapse
Affiliation(s)
- Frances M Brodsky
- Department of Bioengineering and Therapeutic Sciences, Departments of Pharmaceutical Chemistry and Microbiology and Immunology, The G.W. Hooper Foundation, University of California, San Francisco, San Francisco, California 94143-0552
| | - R Thomas Sosa
- Department of Molecular Biosciences, Institute for Cellular and Molecular Biology, University of Texas, Austin, Texas 78712-1095
| | - Joel A Ybe
- Department of Molecular and Cellular Biochemistry, Indiana University, Bloomington, Indiana 47405
| | - Theresa J O'Halloran
- Department of Molecular Biosciences, Institute for Cellular and Molecular Biology, University of Texas, Austin, Texas 78712-1095
| |
Collapse
|
22
|
Moshkanbaryans L, Chan LS, Graham ME. The Biochemical Properties and Functions of CALM and AP180 in Clathrin Mediated Endocytosis. MEMBRANES 2014; 4:388-413. [PMID: 25090048 PMCID: PMC4194041 DOI: 10.3390/membranes4030388] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 07/03/2014] [Accepted: 07/22/2014] [Indexed: 01/26/2023]
Abstract
Clathrin-mediated endocytosis (CME) is a fundamental process for the regulated internalization of transmembrane cargo and ligands via the formation of vesicles using a clathrin coat. A vesicle coat is initially created at the plasma membrane by clathrin assembly into a lattice, while a specific cargo sorting process selects and concentrates proteins for inclusion in the new vesicle. Vesicles formed via CME traffic to different parts of the cell and fuse with target membranes to deliver cargo. Both clathrin assembly and cargo sorting functions are features of the two gene family consisting of assembly protein 180 kDa (AP180) and clathrin assembly lymphoid myeloid leukemia protein (CALM). In this review, we compare the primary structure and domain organization of CALM and AP180 and relate these properties to known functions and roles in CME and disease.
Collapse
Affiliation(s)
- Lia Moshkanbaryans
- Children's Medical Research Institute, The University of Sydney, 214 Hawkesbury Road, Westmead, NSW 2145, Australia.
| | - Ling-Shan Chan
- Children's Medical Research Institute, The University of Sydney, 214 Hawkesbury Road, Westmead, NSW 2145, Australia.
| | - Mark E Graham
- Children's Medical Research Institute, The University of Sydney, 214 Hawkesbury Road, Westmead, NSW 2145, Australia.
| |
Collapse
|
23
|
Abstract
Dynamin is a large GTPase with roles in membrane fission during clathrin-mediated endocytosis, in actin dynamics and in cytokinesis. Defects in dynamin have been linked to human diseases. The synthesis of a dynamin modulator toolkit comprising two different inhibitor classes is described. The first series comprises Dynole 34-2, Dynole 2-24 and the inactive control Dynole 31-2. The Dynole compounds act on the dynamin G domain, are not GTP competitive and can be synthesized in 2-3 d. Knoevenagel condensation of 1-(3-(dimethylamino)propyl)-1H-indole-3-carbaldehyde (1) with cyanoamides (2 and 3) affords Dynole 31-2 and Dynole 34-2, respectively. Reductive amination of 1 with decylamine gives Dynole 2-24. The second series acts at an allosteric site in the G domain of dynamin and comprises Dyngo 4a and Dyngo Ø (inactive control). Both are synthesized in an overnight reaction via condensation of 3-hydroxy-2-naphthoic hydrazide with 2,4,5-trihydroxybenzaldehyde to afford Dyngo 4a, or with benzaldehyde to afford Dyngo Ø.
Collapse
|
24
|
Abstract
Membrane trafficking and mitosis are two essential processes in eukaryotic cells. Surprisingly, many proteins best known for their role in membrane trafficking have additional 'moonlighting' functions in mitosis. Despite having proteins in common, there is insufficient evidence for a specific connection between these two processes. Instead, these phenomena demonstrate the adaptability of the membrane trafficking machinery that allows its repurposing for different cellular functions.
Collapse
Affiliation(s)
- Stephen J Royle
- Division of Biomedical Cell Biology, Warwick Medical School, Gibbet Hill Road, Coventry, CV4 7AL, UK.
| |
Collapse
|
25
|
Takeda T, Robinson IM, Savoian MM, Griffiths JR, Whetton AD, McMahon HT, Glover DM. Drosophila F-BAR protein Syndapin contributes to coupling the plasma membrane and contractile ring in cytokinesis. Open Biol 2013; 3:130081. [PMID: 23926047 PMCID: PMC3758542 DOI: 10.1098/rsob.130081] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cytokinesis is a highly ordered cellular process driven by interactions between central spindle microtubules and the actomyosin contractile ring linked to the dynamic remodelling of the plasma membrane. The mechanisms responsible for reorganizing the plasma membrane at the cell equator and its coupling to the contractile ring in cytokinesis are poorly understood. We report here that Syndapin, a protein containing an F-BAR domain required for membrane curvature, contributes to the remodelling of the plasma membrane around the contractile ring for cytokinesis. Syndapin colocalizes with phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2) at the cleavage furrow, where it directly interacts with a contractile ring component, Anillin. Accordingly, Anillin is mislocalized during cytokinesis in Syndapin mutants. Elevated or diminished expression of Syndapin leads to cytokinesis defects with abnormal cortical dynamics. The minimal segment of Syndapin, which is able to localize to the cleavage furrow and induce cytokinesis defects, is the F-BAR domain and its immediate C-terminal sequences. Phosphorylation of this region prevents this functional interaction, resulting in reduced ability of Syndapin to bind to and deform membranes. Thus, the dephosphorylated form of Syndapin mediates both remodelling of the plasma membrane and its proper coupling to the cytokinetic machinery.
Collapse
Affiliation(s)
- Tetsuya Takeda
- Department of Genetics, University of Cambridge, Downing Street, Cambridge CB2 3EH, UK.
| | | | | | | | | | | | | |
Collapse
|
26
|
Sorting nexin 9 recruits clathrin heavy chain to the mitotic spindle for chromosome alignment and segregation. PLoS One 2013; 8:e68387. [PMID: 23861900 PMCID: PMC3702553 DOI: 10.1371/journal.pone.0068387] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 06/02/2013] [Indexed: 12/22/2022] Open
Abstract
Sorting nexin 9 (SNX9) and clathrin heavy chain (CHC) each have roles in mitosis during metaphase. Since the two proteins directly interact for their other cellular function in endocytosis we investigated whether they also interact for metaphase and operate on the same pathway. We report that SNX9 and CHC functionally interact during metaphase in a specific molecular pathway that contributes to stabilization of mitotic spindle kinetochore (K)-fibres for chromosome alignment and segregation. This function is independent of their endocytic role. SNX9 residues in the clathrin-binding low complexity domain are required for CHC association and for targeting both CHC and transforming acidic coiled-coil protein 3 (TACC3) to the mitotic spindle. Mutation of these sites to serine increases the metaphase plate width, indicating inefficient chromosome congression. Therefore SNX9 and CHC function in the same molecular pathway for chromosome alignment and segregation, which is dependent on their direct association.
Collapse
|
27
|
Smith CM, Haucke V, McCluskey A, Robinson PJ, Chircop M. Inhibition of clathrin by pitstop 2 activates the spindle assembly checkpoint and induces cell death in dividing HeLa cancer cells. Mol Cancer 2013; 12:4. [PMID: 23327284 PMCID: PMC3567983 DOI: 10.1186/1476-4598-12-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 01/03/2013] [Indexed: 12/17/2022] Open
Abstract
Background During metaphase clathrin stabilises the mitotic spindle kinetochore(K)-fibres. Many anti-mitotic compounds target microtubule dynamics. Pitstop 2™ is the first small molecule inhibitor of clathrin terminal domain and inhibits clathrin-mediated endocytosis. We investigated its effects on a second function for clathrin in mitosis. Results Pitstop 2 did not impair clathrin recruitment to the spindle but disrupted its function once stationed there. Pitstop 2 trapped HeLa cells in metaphase through loss of mitotic spindle integrity and activation of the spindle assembly checkpoint, phenocopying clathrin depletion and aurora A kinase inhibition. Conclusions Pitstop 2 is therefore a new tool for investigating clathrin spindle dynamics. Pitstop 2 reduced viability in dividing HeLa cells, without affecting dividing non-cancerous NIH3T3 cells, suggesting that clathrin is a possible novel anti-mitotic drug target.
Collapse
Affiliation(s)
- Charlotte M Smith
- Children's Medical Research Institute, The University of Sydney, 214 Hawkesbury Road, Westmead, NSW, 2145, Australia
| | | | | | | | | |
Collapse
|
28
|
Mitotic inhibition of clathrin-mediated endocytosis. Cell Mol Life Sci 2013; 70:3423-33. [PMID: 23307073 DOI: 10.1007/s00018-012-1250-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 11/22/2012] [Accepted: 12/17/2012] [Indexed: 10/27/2022]
Abstract
Endocytosis and mitosis are fundamental processes in a cell's life. Nearly 50 years of research suggest that these processes are linked and that endocytosis is shut down as cells undergo the early stages of mitosis. Precisely how this occurs at the molecular level is an open question. In this review, we summarize the early work characterizing the inhibition of clathrin-mediated endocytosis and discuss recent challenges to this established concept. We also set out four proposed mechanisms for the inhibition: mitotic phosphorylation of endocytic proteins, altered membrane tension, moonlighting of endocytic proteins, and a mitotic spindle-dependent mechanism. Finally, we speculate on the functional consequences of endocytic shutdown during mitosis and where an understanding of the mechanism of inhibition will lead us in the future.
Collapse
|