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Lipid kinases VPS34 and PIKfyve coordinate a phosphoinositide cascade to regulate retriever-mediated recycling on endosomes
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Abstract
Cell surface receptors control how cells respond to their environment. Many cell surface receptors recycle from endosomes to the plasma membrane via a recently discovered pathway, which includes sorting-nexin SNX17, Retriever, WASH, and CCC complexes. Here, using mammalian cells, we discover that PIKfyve and its upstream PI3-kinase VPS34 positively regulate this pathway. VPS34 produces phosphatidylinositol 3-phosphate (PI3P), which is the substrate for PIKfyve to generate PI3,5P 2 . We show that PIKfyve controls recycling of cargoes including integrins, receptors that control cell migration. Furthermore, endogenous PIKfyve colocalizes with SNX17, Retriever, WASH, and CCC complexes on endosomes. Importantly, PIKfyve inhibition results in displacement of Retriever and CCC from endosomes. In addition, we show that recruitment of SNX17 is an early step and requires VPS34. These discoveries suggest that VPS34 and PIKfyve coordinate an ordered pathway to regulate recycling from endosomes and suggest how PIKfyve functions in cell migration.
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VPS34 regulates SNX17 recruitment to endosomes in HeLa cells.
“We previously showed that VPS34 regulates SNX17 recruitment to endosomes in HeLa cells (Giridharan et al., 2022).”
From Recruitment of the SNX17-Retriever recycling pathway regulates synaptic function and plasticity (2023) · cites this paper as Giridharan et al., 2022
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Retriever is a multiprotein complex for retromer-independent endosomal cargo recycling
McNally, K. E., Faulkner, R., Steinberg, F., Gallon, M., Ghai, R., Pim, D., Langton, P., Pearson, N., Danson, C. M., Nägele, H., et al. (2017) · Nature Cell Biology · doi:10.1038/ncb3610 · Cited by 346
Self-citationPhosphoinositides in Control of Membrane Dynamics
Schink, K. O., Tan, K.-W., & Stenmark, H. (2016) · Annual Review of Cell and Developmental Biology · doi:10.1146/annurev-cellbio-111315-125349 · Cited by 283
Understanding phosphoinositides: rare, dynamic, and essential membrane phospholipids
Dickson, E. J., & Hille, B. (2019) · Biochemical Journal · doi:10.1042/bcj20180022 · Cited by 254
Endosomal retrieval of cargo: Retromer is not alone
McNally, K. E., & Cullen, P. J. (2018) · Trends in Cell Biology · doi:10.1016/j.tcb.2018.06.005 · Cited by 169
Singla, A., Fedoseienko, A., Giridharan, S. S. P., Overlee, B. L., Lopez, A., Jia, D., Song, J., Huff-Hardy, K., Weisman, L., Burstein, E., et al. (2019) · Nature Communications · doi:10.1038/s41467-019-12221-6 · Cited by 113
Self-citationDhawan, K., Naslavsky, N., & Caplan, S. (2020) · Journal of Biological Chemistry · doi:10.1074/jbc.ra119.011368 · Cited by 36
Flagged first, then by citations
Research works printed but not linked: 89
- Bissig, 2017, PIKfyve activity regulates reformation of terminal storage lysosomes from endolysosomes, Traffic, 18, 747, 10.1111/tra.12525 · DOI
- Bissig, 2019, The PIKfyve complex regulates the early melanosome homeostasis required for physiological amyloid formation, Journal of Cell Science, 132, 10.1242/jcs.229500 · DOI
- Böttcher, 2012, Sorting nexin 17 prevents lysosomal degradation of β1 integrins by binding to the β1-integrin tail, Nature Cell Biology, 14, 584, 10.1038/ncb2501 · DOI · Paper page
- Chandra, 2019, Classification of the human phox homology (PX) domains based on their phosphoinositide binding specificities, Nature Communications, 10, 10.1038/s41467-019-09355-y · DOI
- Chen, 2017, Structure of mammalian endolysosomal TRPML1 channel in nanodiscs, Nature, 550, 415, 10.1038/nature24035 · DOI
- Chen, 2019, Towards a molecular understanding of endosomal trafficking by Retromer and Retriever, Traffic, 20, 465, 10.1111/tra.12649 · DOI · Paper page
- Chow, 2007, Mutation of FIG4 causes neurodegeneration in the pale tremor mouse and patients with CMT4J, Nature, 448, 68, 10.1038/nature05876 · DOI
- Choy, 2018, Lysosome enlargement during inhibition of the lipid kinase PIKfyve proceeds through lysosome coalescence, Journal of Cell Science, 131, 10.1242/jcs.213587 · DOI
- Christoforidis, 1999, Phosphatidylinositol-3-OH kinases are Rab5 effectors, Nature Cell Biology, 1, 249, 10.1038/12075 · DOI · Paper page
- Cinato, 2021, Apilimod alters TGFβ signaling pathway and prevents cardiac fibrotic remodeling, Theranostics, 11, 6491, 10.7150/thno.55821 · DOI
- Cullen, 2018, To degrade or not to degrade: mechanisms and significance of endocytic recycling, Nature Reviews. Molecular Cell Biology, 19, 679, 10.1038/s41580-018-0053-7 · DOI · Paper page
- Daly, 2020, Neuropilin-1 is a host factor for SARS-CoV-2 infection, Science, 370, 861, 10.1126/science.abd3072 · DOI · Paper page
- Dayam, 2017, The Lipid Kinase PIKfyve Coordinates the Neutrophil Immune Response through the Activation of the Rac GTPase, Journal of Immunology, 199, 2096, 10.4049/jimmunol.1601466 · DOI
- de Araujo, 2020, Lysosomal size matters, Traffic, 21, 60, 10.1111/tra.12714 · DOI
- De Craene, 2017, Phosphoinositides, Major Actors in Membrane Trafficking and Lipid Signaling Pathways, International Journal of Molecular Sciences, 18, 10.3390/ijms18030634 · DOI
- de Lartigue, 2009, PIKfyve Regulation of Endosome-Linked Pathways, Traffic, 10, 883, 10.1111/j.1600-0854.2009.00915.x · DOI
- Derivery, 2009, The Arp2/3 Activator WASH Controls the Fission of Endosomes through a Large Multiprotein Complex, Developmental Cell, 17, 712, 10.1016/j.devcel.2009.09.010 · DOI · Paper page
- Devereaux, 2013, Regulation of Mammalian Autophagy by Class II and III PI 3-Kinases through PI3P Synthesis, PLOS ONE, 8, 10.1371/journal.pone.0076405 · DOI · Paper page
- Dong, 2010, PI(3,5)P(2) controls membrane trafficking by direct activation of mucolipin Ca(2+) release channels in the endolysosome, Nature Communications, 1, 10.1038/ncomms1037 · DOI
- Dove, 2009, Phosphatidylinositol 3,5-bisphosphate and Fab1p/PIKfyve underPPIn endo-lysosome function, The Biochemical Journal, 419, 1, 10.1042/BJ20081950 · DOI
- Dukes, 2012, The PIKfyve inhibitor YM201636 blocks the continuous recycling of the tight junction proteins claudin-1 and claudin-2 in MDCK cells, PLOS ONE, 7, 10.1371/journal.pone.0028659 · DOI
- Dupuis-Coronas, 2011, The nucleophosmin-anaplastic lymphoma kinase oncogene interacts, activates, and uses the kinase PIKfyve to increase invasiveness, The Journal of Biological Chemistry, 286, 32105, 10.1074/jbc.M111.227512 · DOI
- Farfán, 2013, A sorting nexin 17-binding domain within the LRP1 cytoplasmic tail mediates receptor recycling through the basolateral sorting endosome, Traffic, 14, 823, 10.1111/tra.12076 · DOI · Paper page
- Fine, 2018, Structural basis for PtdInsP2-mediated human TRPML1 regulation, Nature Communications, 9, 10.1038/s41467-018-06493-7 · DOI
- Gallon, 2015, Retromer and sorting nexins in endosomal sorting, Biochemical Society Transactions, 43, 33, 10.1042/BST20140290 · DOI
- Gomez, 2009, A FAM21-containing WASH complex regulates retromer-dependent sorting, Developmental Cell, 17, 699, 10.1016/j.devcel.2009.09.009 · DOI · Paper page
- Grant, 2009, Pathways and mechanisms of endocytic recycling, Nature Reviews. Molecular Cell Biology, 10, 597, 10.1038/nrm2755 · DOI · Paper page
- Harbour, 2010, The cargo-selective retromer complex is a recruiting hub for protein complexes that regulate endosomal tubule dynamics, Journal of Cell Science, 123, 3703, 10.1242/jcs.071472 · DOI · Paper page
- Harbour, 2012, Recruitment of the endosomal WASH complex is mediated by the extended “tail” of Fam21 binding to the retromer protein Vps35, The Biochemical Journal, 442, 209, 10.1042/BJ20111761 · DOI · Paper page
- Hasegawa, 2017, PI5P and PI(3,5)P2: Minor, but Essential Phosphoinositides, Cell Structure and Function, 42, 49, 10.1247/csf.17003 · DOI
- Healy, 2018, Structural insights into the architecture and membrane interactions of the conserved COMMD proteins, eLife, 7, 10.7554/eLife.35898 · DOI · Paper page
- Helfer, 2013, Endosomal recruitment of the WASH complex: active sequences and mutations impairing interaction with the retromer, Biology of the Cell, 105, 191, 10.1111/boc.201200038 · DOI
- Ho, 2012, Phosphatidylinositol-3,5-bisphosphate: no longer the poor PIP2, Traffic, 13, 1, 10.1111/j.1600-0854.2011.01246.x · DOI
- Hong, 2015, PI(3,5)P2 controls endosomal branched actin dynamics by regulating cortactin-actin interactions, The Journal of Cell Biology, 210, 753, 10.1083/jcb.201412127 · DOI · Paper page
- Hussain, 2014, Sorting Nexin 27 regulates basal and activity-dependent trafficking of AMPARs, PNAS, 111, 11840, 10.1073/pnas.1412415111 · DOI · Paper page
- Ikonomov, 2011, The phosphoinositide kinase PIKfyve is vital in early embryonic development: preimplantation lethality of PIKfyve-/- embryos but normality of PIKfyve+/- mice, The Journal of Biological Chemistry, 286, 13404, 10.1074/jbc.M111.222364 · DOI · Paper page
- Ikonomov, 2015, Class III PI 3-kinase is the main source of PtdIns3P substrate and membrane recruitment signal for PIKfyve constitutive function in podocyte endomembrane homeostasis, Biochimica et Biophysica Acta, 1853, 1240, 10.1016/j.bbamcr.2015.01.008 · DOI · Paper page
- Itzhak, 2016, Global, quantitative and dynamic mapping of protein subcellular localization, eLife, 5, 10.7554/eLife.16950 · DOI · Paper page
- Jia, 2010, WASH and WAVE actin regulators of the Wiskott-Aldrich syndrome protein (WASP) family are controlled by analogous structurally related complexes, PNAS, 107, 10442, 10.1073/pnas.0913293107 · DOI · Paper page
- Jia, 2012, Multiple repeat elements within the FAM21 tail link the WASH actin regulatory complex to the retromer, Molecular Biology of the Cell, 23, 2352, 10.1091/mbc.e11-12-1059 · DOI · Paper page
- Jia, 2014, The recognition of membrane-bound PtdIns3P by PX domains, Proteins, 82, 2332, 10.1002/prot.24593 · DOI
- Kang, 2020, Inhibition of PIKfyve kinase prevents infection by Zaire ebolavirus and SARS-CoV-2, PNAS, 117, 20803, 10.1073/pnas.2007837117 · DOI
- Kim, 2014, PIKfyve Inhibition Interferes with Phagosome and Endosome Maturation in Macrophages, Traffic, 15, 1143, 10.1111/tra.12199 · DOI
- Krishna, 2016, PIKfyve Regulates Vacuole Maturation and Nutrient Recovery following Engulfment, Developmental Cell, 38, 536, 10.1016/j.devcel.2016.08.001 · DOI · Paper page
- Kvainickas, 2016, Retromer/WASH dependent sorting of nutrient transporters requires a multivalent interaction network with ANKRD50, Journal of Cell Science, 130, 382, 10.1242/jcs.196758 · DOI
- Lamprecht, 2007, CellProfiler: free, versatile software for automated biological image analysis, BioTechniques, 42, 71, 10.2144/000112257 · DOI
- Lenk, 2016, Biallelic Mutations of VAC14 in Pediatric-Onset Neurological Disease, The American Journal of Human Genetics, 99, 188, 10.1016/j.ajhg.2016.05.008 · DOI
- McCartney, 2014, Phosphatidylinositol 3,5-bisphosphate: Low abundance, high significance, BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology, 36, 52, 10.1002/bies.201300012 · DOI
- McCartney, 2014, Activity-dependent PI(3,5)P2 synthesis controls AMPA receptor trafficking during synaptic depression, PNAS, 111, E4896, 10.1073/pnas.1411117111 · DOI · Paper page
- Messenger, 2015, Early to Late Endosome Trafficking Controls Secretion and Zymogen Activation in Rodent and Human Pancreatic Acinar Cells, Cellular and Molecular Gastroenterology and Hepatology, 1, 695, 10.1016/j.jcmgh.2015.08.002 · DOI
- Moreno-Layseca, 2019, Integrin trafficking in cells and tissues, Nature Cell Biology, 21, 122, 10.1038/s41556-018-0223-z · DOI
- Naslavsky, 2018, The enigmatic endosome - sorting the ins and outs of endocytic trafficking, Journal of Cell Science, 131, 10.1242/jcs.216499 · DOI · Paper page
- Nelson, 2017, The phosphatidylinositol-3-phosphate 5-kinase inhibitor apilimod blocks filoviral entry and infection, PLOS Neglected Tropical Diseases, 11, 10.1371/journal.pntd.0005540 · DOI
- Oppelt, 2013, Production of phosphatidylinositol 5-phosphate via PIKfyve and MTMR3 regulates cell migration, EMBO Reports, 14, 57, 10.1038/embor.2012.183 · DOI
- Oppelt, 2014, PIKfyve, MTMR3 and their product PtdIns5P regulate cancer cell migration and invasion through activation of Rac1, The Biochemical Journal, 461, 383, 10.1042/BJ20140132 · DOI
- Ou, 2020, Characterization of spike glycoprotein of SARS-CoV-2 on virus entry and its immune cross-reactivity with SARS-CoV, Nature Communications, 11, 10.1038/s41467-020-15562-9 · DOI · Paper page
- Phillips-Krawczak, 2015, COMMD1 is linked to the WASH complex and regulates endosomal trafficking of the copper transporter ATP7A, Molecular Biology of the Cell, 26, 91, 10.1091/mbc.E14-06-1073 · DOI · Paper page
- Qiu, 2018, Ebola virus requires phosphatidylinositol (3,5) bisphosphate production for efficient viral entry, Virology, 513, 17, 10.1016/j.virol.2017.09.028 · DOI
- Rink, 2005, Rab conversion as a mechanism of progression from early to late endosomes, Cell, 122, 735, 10.1016/j.cell.2005.06.043 · DOI
- Riva, 2020, Discovery of SARS-CoV-2 antiviral drugs through large-scale compound repurposing, Nature, 586, 113, 10.1038/s41586-020-2577-1 · DOI
- Rutherford, 2006, The mammalian phosphatidylinositol 3-phosphate 5-kinase (PIKfyve) regulates endosome-to-TGN retrograde transport, Journal of Cell Science, 119, 3944, 10.1242/jcs.03153 · DOI
- Sbrissa, 1999, PIKfyve, a mammalian ortholog of yeast Fab1p lipid kinase, synthesizes 5-phosphoinositides. Effect of insulin, The Journal of Biological Chemistry, 274, 21589, 10.1074/jbc.274.31.21589 · DOI
- Schindelin, 2012, Fiji: an open-source platform for biological-image analysis, Nature Methods, 9, 676, 10.1038/nmeth.2019 · DOI · Paper page
- Seaman, 2009, Membrane recruitment of the cargo-selective retromer subcomplex is catalysed by the small GTPase Rab7 and inhibited by the Rab-GAP TBC1D5, Journal of Cell Science, 122, 2371, 10.1242/jcs.048686 · DOI · Paper page
- Seebohm, 2007, Regulation of endocytic recycling of KCNQ1/KCNE1 potassium channels, Circulation Research, 100, 686, 10.1161/01.RES.0000260250.83824.8f · DOI
- Seebohm, 2012, Identification of a novel signaling pathway and its relevance for GluA1 recycling, PLOS ONE, 7, 10.1371/journal.pone.0033889 · DOI
- She, 2018, Structural insights into the voltage and phospholipid activation of the mammalian TPC1 channel, Nature, 556, 130, 10.1038/nature26139 · DOI
- She, 2019, Structural mechanisms of phospholipid activation of the human TPC2 channel, eLife, 8, 10.7554/eLife.45222 · DOI
- Shi, 2018, Caught in the “Akt”: Cross-talk between EphA2 and EGFR through the Akt-PIKfyve axis maintains cellular sensitivity to EGF, Science Signaling, 11, 10.1126/scisignal.aau1207 · DOI
- Shisheva, 2012, PIKfyve and its Lipid products in health and in sickness, Current Topics in Microbiology and Immunology, 362, 127, 10.1007/978-94-007-5025-8_7 · DOI
- Simonetti, 2019, Actin-dependent endosomal receptor recycling, Current Opinion in Cell Biology, 56, 22, 10.1016/j.ceb.2018.08.006 · DOI · Paper page
- Steinberg, 2012, SNX17 protects integrins from degradation by sorting between lysosomal and recycling pathways, The Journal of Cell Biology, 197, 219, 10.1083/jcb.201111121 · DOI · Paper page
- Steinberg, 2013, A global analysis of SNX27-retromer assembly and cargo specificity reveals a function in glucose and metal ion transport, Nature Cell Biology, 15, 461, 10.1038/ncb2721 · DOI · Paper page
- Stenmark, 2002, The phosphatidylinositol 3-phosphate-binding FYVE finger, FEBS Letters, 513, 77, 10.1016/s0014-5793(01)03308-7 · DOI · Paper page
- Strunk, 2020, Roles for a lipid phosphatase in the activation of its opposing lipid kinase, Molecular Biology of the Cell, 31, 1835, 10.1091/mbc.E18-09-0556 · DOI
- Takasuga, 2013, Critical roles of type III phosphatidylinositol phosphate kinase in murine embryonic visceral endoderm and adult intestine, PNAS, 110, 1726, 10.1073/pnas.1213212110 · DOI
- Vicente-Manzanares, 2009, Integrins in cell migration--the actin connection, Journal of Cell Science, 122, 199, 10.1242/jcs.018564 · DOI
- Vitali, 2019, Arf GAPs: A family of proteins with disparate functions that converge on a common structure, the integrin adhesion complex, Small GTPases, 10, 280, 10.1080/21541248.2017.1299271 · DOI
- Wang, 2017, A voltage-dependent K+ channel in the lysosome is required for refilling lysosomal Ca2+ stores, Journal of Cell Biology, 216, 1715, 10.1083/jcb.201612123 · DOI
- Wang, 2018, Endosomal receptor trafficking: Retromer and beyond, Traffic, 19, 578, 10.1111/tra.12574 · DOI
- Wozniak, 2004, Focal adhesion regulation of cell behavior, Biochimica et Biophysica Acta, 1692, 103, 10.1016/j.bbamcr.2004.04.007 · DOI
- Wrapp, 2020, Cryo-EM structure of the 2019-nCoV spike in the prefusion conformation, Science, 367, 1260, 10.1126/science.abb2507 · DOI · Paper page
- Xu, 2020, Molecular Basis for PI(3,5)P2 Recognition by SNX11, a Protein Involved in Lysosomal Degradation and Endosome Homeostasis Regulation, Journal of Molecular Biology, 432, 4750, 10.1016/j.jmb.2020.06.010 · DOI
- Yordanov, 2019, Biogenesis of lysosome-related organelles complex-1 (BORC) regulates late endosomal/lysosomal size through PIKfyve-dependent phosphatidylinositol-3,5-bisphosphate, Traffic (Copenhagen, Denmark), 20, 674, 10.1111/tra.12679 · DOI
- Zavodszky, 2014, Mutation in VPS35 associated with Parkinson’s disease impairs WASH complex association and inhibits autophagy, Nature Communications, 5, 10.1038/ncomms4828 · DOI · Paper page
- Zhang, 2007, Loss of Vac14, a regulator of the signaling lipid phosphatidylinositol 3,5-bisphosphate, results in neurodegeneration in mice, PNAS, 104, 17518, 10.1073/pnas.0702275104 · DOI
- Zhang, 2012, Modulation of synaptic function by VAC14, a protein that regulates the phosphoinositides PI(3,5)P2 and PI(5)P, The EMBO Journal, 31, 3442, 10.1038/emboj.2012.200 · DOI
- Zhu, 2021, A genome-wide CRISPR screen identifies host factors that regulate SARS-CoV-2 entry, Nature Communications, 12, 10.1038/s41467-021-21213-4 · DOI
- Zolov, 2012, In vivo, Pikfyve generates PI(3,5)P2, which serves as both a signaling lipid and the major precursor for PI5P, PNAS, 109, 17472, 10.1073/pnas.1203106109 · DOI · Paper page
Cited by
Sorted by citations
Structural organization of the retriever–CCC endosomal recycling complex
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Self-citationRecruitment of the SNX17-Retriever recycling pathway regulates synaptic function and plasticity
Rivero-Ríos, P., Tsukahara, T., Uygun, T., Chen, A., Chavis, G. D., Giridharan, S. S. P., Iwase, S., Sutton, M. A., & Weisman, L. S. (2023) · Journal of Cell Biology · doi:10.1083/jcb.202207025 · Cited by 17
Self-citationPI(3)P coordinates SNX17- and SNX27-dependent protein recycling for long-term synaptic plasticity
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Metadata
- Authors
- Giridharan, S. S. P., Luo, G., Rivero-Rios, P., Steinfeld, N., Tronchere, H., Singla, A., Burstein, E., Billadeau, D. D., Sutton, M. A., & Weisman, L. S.
- Affiliations
- Life Sciences Institute and Department of Cellular and Developmental Biology, University of Michigan
- INSERM U1048 I2MC, France and Université Paul Sabatier
- Department of Internal Medicine, and Department of Molecular Biology, University of Texas Southwestern Medical Center
- Division of Oncology Research and Schulze Center for Novel Therapeutics, Mayo Clinic
- Neuroscience Graduate Program, Molecular and Behavioral Neuroscience Institute, Molecular and Integrative Physiology, University of Michigan
- ORCID
- Venue
- eLife
- Publisher
- eLife Sciences Publications, Ltd
- Published
- 2022-01-18
- Volume
- 11
- ISSN
- 2050-084X
- PMC
- PMC8816382
- Cited by
- 61
- References
- 6
- Language
- en
- Licence
- Funders
- National Institute of Neurological Disorders and Stroke (Research Project Grant R01 NS064015, Research Project Grant R01-NS099340)
- National Institute of Diabetes and Digestive and Kidney Diseases (Research Project Grant R01-DK107733)
- American Heart Association (Postdoctoral Fellowship 14POST20480137, Postdoctoral Fellowship 19POST34450253)
- University of Michigan Protein Folding Diseases Fast Forward Initiative (Pilot grant)
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