Abstract
Focal adhesions are an elaborate network of interconnecting proteins linking actin stress fibers to the extracellular matrix substrate. Modulation of the focal adhesion plaque provides a mechanism for the regulation of cellular adhesive strength. Using interference reflection microscopy, we found that activation of phosphoinositide 3-kinase (PI 3-kinase) by PDGF induces the dissipation of focal adhesions. Loss of this close apposition between the cell membrane and the extracellular matrix coincided with a redistribution of α-actinin and vinculin from the focal adhesion complex to the Triton X-100–soluble fraction. In contrast, talin and paxillin remained localized to focal adhesions, suggesting that activation of PI 3-kinase induced a restructuring of the plaque rather than complete dispersion. Furthermore, phosphatidylinositol (3,4,5)-trisphosphate (PtdIns (3,4,5)-P3), a lipid product of PI 3-kinase, was sufficient to induce restructuring of the focal adhesion plaque. We also found that PtdIns (3,4,5)-P3 binds to α-actinin in PDGF-treated cells. Further evidence demonstrated that activation of PI 3-kinase by PDGF induced a decrease in the association of α-actinin with the integrin β subunit, and that PtdIns (3,4,5)-P3 could disrupt this interaction in vitro. Modification of focal adhesion structure by PI 3-kinase and its lipid product, PtdIns (3,4,5)-P3, has important implications for the regulation of cellular adhesive strength and motility.
References
73
Referenced
106
10.1091/mbc.10.3.581
/ Mol. Biol. Cell. / GCS1, an arf guanosine triphosphate-activating protein in Saccharomyces cerevisiae, is required for normal actin cytoskeletal organization in vivo and stimulates actin polymerization in vitro by Blader (1999)10.1007/BF01758424
/ J. Muscle Res. Cell Motil / The structure and function of α-actinin by Blanchard (1989)10.1126/science.282.5387.293
/ Science. / Bifurcation of lipid and protein kinase signals of PI3Kγ to the protein kinases PKB and MAPK by Bondeva (1998)10.1038/314469a0
/ Nature. / Diacylglycerol in large α-actinin/actin complexes and in the cytoskeleton of activated platelets by Burn (1985)10.1146/annurev.cellbio.12.1.463
/ Annu. Rev. Cell Dev. Biol. / Focal adhesions, contractility, and signaling by Burridge (1996)10.1016/0092-8674(91)90639-G
/ Cell. / Oncogenes and signal transduction by Cantley (1991)10.1073/pnas.96.8.4240
/ Proc. Natl. Acad. Sci. USA. / New insights into tumor suppressionPTEN suppresses tumor formation by restraining the phosphoinositide 3-kinase/AKT pathway by Cantley (1999)10.1016/S0955-0674(96)80060-3
/ Curr. Opin. Cell Biol. / Phosphoinositide kinases by Carpenter (1996){'key': '2023072902223409400_ChellaiahandHruska1996', 'first-page': '743', 'article-title': 'Osteopontin stimulates gelsolin-associated phosphoinositide levels and phosphatidylinositol triphosphate-hydroxyl kinase', 'volume': 'Cell. 7', 'author': 'Chellaiah', 'year': '1996', 'journal-title': 'Mol. Biol'}
/ Mol. Biol / Osteopontin stimulates gelsolin-associated phosphoinositide levels and phosphatidylinositol triphosphate-hydroxyl kinase by Chellaiah (1996)10.1016/0092-8674(94)90259-3
/ Cell. / The small GTP-binding protein Rho regulates a phosphatidylinositol 4-phosphate 5-kinase in mammalian cells by Chong (1994)10.1083/jcb.133.6.1403
/ J. Cell Biol. / Rho-stimulated contractility drives the formation of stress fibers and focal adhesions by Chrzanowska-Wodnicka (1996)10.1242/jcs.39.1.149
/ J. Cell Sci. / The behaviour of fibroblasts migrating from chick heart explantschanges in adhesion, locomotion and growth, and in the distribution of actomyosin and fibronectin by Couchman (1979)10.1002/(SICI)1097-4644(19960616)61:4<578::AID-JCB11>3.0.CO;2-C
/ J. Cell. Biochem. / Syndecans, signaling, and cell adhesion by Couchman (1996)10.1016/S0955-0674(96)80051-2
/ Curr. Opin. Cell Biol / Assembly of focal adhesionsprogress, paradigms, and portents by Craig (1996)10.1074/jbc.272.10.6465
/ J. Biol. Chem. / The lipid products of phosphoinositide 3-kinase increase cell motility through protein kinase C by Derman (1997)10.1016/S0006-3495(91)82027-6
/ Biophys. J. / Mathematical model for the effects of adhesion and mechanics on cell migration speed by DiMilla (1991)10.1083/jcb.122.3.729
/ J. Cell Biol. / Maximal migration of human smooth muscle cells on fibronectin and type IV collagen occurs at an intermediate attachment strength by DiMilla (1993)10.1242/jcs.105.2.489
/ J. Cell Sci. / Controlled induction of focal adhesion disassembly and migration in primary fibroblasts by Dunlevy (1993)10.1242/jcs.92.1.67
/ J. Cell Sci. / The distribution of distinct integrins in focal contacts is determined by the substratum composition by Fath (1989)10.1126/science.275.5300.665
/ Science. / Direct regulation of the Akt proto-oncogene product by phosphatidylinositol-3,4-bisphosphate by Franke (1997)10.1038/359150a0
/ Nature. / Requirement of phosphatidylinositol 4,5-bisphosphate for α-actinin function by Fukami (1992)10.1101/SQB.1992.057.01.069
/ Cold Spring Harbor Symp. Quant. Biol. / Cytoplasmic control of cell adhesion by Geiger (1992)10.1083/jcb.146.4.869
/ J. Cell Biol. / Intracellular movement of green fluorescent protein-tagged phosphatidylinositol 3-kinase in response to growth factor receptor signaling by Gillham (1999){'key': '2023072902223409400_GilmoreandBurridge1996', 'first-page': '531', 'article-title': 'Regulation of vinculin binding to talin and actin by phosphatidylinositol-4,5-bisphosphate', 'volume': '381', 'author': 'Gilmore', 'year': '1996', 'journal-title': 'Science.'}
/ Science. / Regulation of vinculin binding to talin and actin by phosphatidylinositol-4,5-bisphosphate by Gilmore (1996)10.1242/jcs.107.7.1773
/ J. Cell Sci. / Modulation of α-actinin levels affects cell motility and confers tumorigenicity on 3T3 cells by Gluck (1994)10.1002/(SICI)1097-0029(19981201)43:5<420::AID-JEMT8>3.0.CO;2-B
/ Microsc. Res. Tech / Signaling of de-adhesion in cellular regulation and motility by Greenwood (1998)10.1074/jbc.273.3.1755
/ J. Biol. Chem. / Thrombospondin signaling of focal adhesion disassembly requires activation of phosphoinositide 3-kinase by Greenwood (1998)10.1016/S0092-8674(00)81279-9
/ Cell. / Cell adhesionthe molecular basis of tissue architecture and morphogenesis by Gumbiner (1996)10.1126/science.279.5350.509
/ Science. / Rho GTPases and the actin cytoskeleton by Hall (1998)10.1074/jbc.271.31.18859
/ J. Biol. Chem. / Identification and cloning of centaurin-αa novel phosphatidylinositol 3,4,5-trisphosphate-binding protein from rat brain by Hammonds-Odie (1996)10.1126/science.279.5350.558
/ Science. / Role of substrates and products of PI 3-kinase in regulating activation of Rac-related guanosine triphosphatases by Vav by Han (1998)10.1016/S0960-9822(95)00080-7
/ Curr. Biol / PDGF stimulates an increase in GTP-Rac via activation of phosphoinositide 3-kinase by Hawkins (1995){'key': '2023072902223409400_Heldinetal1998', 'first-page': 'F79', 'article-title': 'Signal transduction via platelet-derived growth factor receptors', 'volume': '1378', 'author': 'Heldin', 'year': '1998', 'journal-title': 'Biochim. Biophys. Acta.'}
/ Biochim. Biophys. Acta. / Signal transduction via platelet-derived growth factor receptors by Heldin (1998)10.1074/jbc.273.28.17817
/ J. Biol. Chem. / Lipid products of phosphoinositide 3-kinase and phosphatidylinositol 4′,5′-bisphosphate are both required for ADP-dependent platelet spreading by Heraud (1998)10.1016/S0955-0674(98)80144-0
/ Curr. Opin. Cell Biol. / Integrin signaling and cell growth control by Howe (1998)10.1083/jcb.134.6.1551
/ J. Cell Biol. / Modulation of cell migration by integrin-mediated cytoskeletal linkages and ligand-binding affinity by Huttenlocher (1996)10.1242/jcs.21.1.129
/ J. Cell Sci. / Cell-to-substrate contacts in living fibroblastsan interference reflexion study with an evaluation of the technique by Izzard (1976)10.1146/annurev.ph.56.030194.001125
/ Annu. Rev. Physiol / Phosphoinositides and calcium as regulators of cellular actin assembly and disassembly by Janmey (1994)10.1074/jbc.273.18.11017
/ J. Biol. Chem. / Membrane-permeant esters of phosphatidylinositol 3,4,5-trisphosphate by Jiang (1998)10.1006/bbrc.1995.1641
/ Biochem. Biophys. Res. Commun / The carboxy-terminal tail domain of vinculin contains a cryptic binding site for acidic phospholipids by Johnson (1995)10.1038/37656
/ Nature. / Cdc42 and Rac 1 induce integrin-mediated cell motility and invasiveness through PI(3)K by Keely (1997)10.1074/jbc.272.1.466
/ J. Biol. Chem. / Selective recognition of phosphatidylinositol 3,4,5-trisphosphate by a synthetic peptide by Lu (1997)10.1021/bi961878z
/ Biochemistry. / Lipid products of phosphoinositide 3-kinase bind human profilin with high affinity by Lu (1996)10.1016/S0962-8924(99)01519-6
/ Trends Cell Biol / PTENa tumor suppressor that functions as a phospholipid phosphatase by Maehama (1999)10.1210/edrv-17-3-207
/ Endocr. Rev. / The regulation of growth and intracellular signaling by integrins by Meredith (1996)10.1083/jcb.131.3.791
/ J. Cell Biol. / Integrin functionmolecular hierarchies of cytoskeletal and signaling molecules by Miyamoto (1995)10.1083/jcb.135.6.1633
/ J. Cell Biol. / Integrins can collaborate with growth factors for phosphorylation of receptor tyrosine kinases and MAP kinase activationroles of integrin aggregation and occupancy of receptors by Miyamoto (1996)10.4052/tigg.7.89
/ Trends GlycoSci. Glycotechnol / Anti-adhesive proteins of the extracellular matrixthrombospondin, tenascin, and SPARC by Murphy-Ullrich (1995)10.1083/jcb.109.3.1309
/ J. Cell Biol. / Thrombospondin modulates focal adhesions in endothelial cells by Murphy-Ullrich (1989)10.1083/jcb.115.4.1127
/ J. Cell Biol. / Focal adhesion integrity is downregulated by the alternatively spliced domain of human tenascin by Murphy-Ullrich (1991)10.1016/S0021-9258(19)74381-6
/ J. Biol. Chem. / Heparin-binding peptides from thrombospondins 1 and 2 contain focal adhesion-labilizing activity by Murphy-Ullrich (1993)10.1002/jcb.240570218
/ J. Cell. Biochem / SPARC mediates focal adhesion disassembly in endothelial cells through a follistatin-like region and the Ca++-binding EF-hand by Murphy-Ullrich (1995)10.1242/jcs.109.10.2499
/ J. Cell Sci. / Cyclic GMP-dependent protein kinase is required for thrombospondin and tenascin mediated focal adhesion disassembly by Murphy-Ullrich (1996)10.1016/S0021-9258(19)36909-1
/ J. Biol. Chem. / Mapping of the α-actinin binding site with the β1 integrin cytoplasmic domain by Otey (1993)10.1038/385537a0
/ Nature. / Integrin-ligand binding properties govern cell migration speed through cell-substratum adhesiveness by Palecek (1997)10.1042/bst0191065
/ Biochem. Soc. Trans. / Alpha-actinina direct link between actin and integrins by Pavalko (1991)10.1006/excr.1995.1119
/ Exp. Cell Res. / Immunodetection of alpha-actinin in focal adhesions is limited by antibody inaccessibility by Pavalko (1995){'key': '2023072902223409400_Plopperetal1995', 'first-page': '1349', 'article-title': 'Convergence of integrin and growth factor receptor signaling pathways within the focal adhesion complex', 'volume': 'Cell. 6', 'author': 'Plopper', 'year': '1995', 'journal-title': 'Mol. Biol'}
/ Mol. Biol / Convergence of integrin and growth factor receptor signaling pathways within the focal adhesion complex by Plopper (1995)10.1074/jbc.274.18.12361
/ J. Biol. Chem. / Requirement of phosphatidylinositol 3-kinase in focal adhesion kinase-promoted cell migration by Reiske (1999)10.1074/jbc.274.2.1131
/ J. Biol. Chem. / Phospholipase D and its product, phosphatidic acid, mediate agonist-dependent Raf-1 translocation to the plasma membrane and the activation of the mitogen-activated protein kinase pathway by Rizzo (1999)10.1002/cm.970220206
/ Cell Motil. Cytoskeleton. / Overexpression of vinculin suppress cell motility in Balb/C 3T3 cells by Rodriguez Fernandez (1992)10.1083/jcb.122.6.1285
/ J. Cell Biol. / Suppression of vinculin expression by antisense transfection confers changes in cell morphology, motility, and anchorage-dependent growth of 3T3 cells by Rodriguez Fernandez (1993)10.1016/S0092-8674(00)80226-3
/ Cell. / Role of phosphoinositide 3-OH kinase in cell transformation and control of the actin cytoskeleton by Ras by Rodriguez-Viciana (1997)10.1074/jbc.273.50.33588
/ J. Biol. Chem. / Cytoskeletal interactions with the leukocyte integrin β2 cytoplasmic tail by Sampath (1998)10.1016/S0092-8674(00)80486-9
/ Cell. / Activation of phosphoinositide 3-OH kinase by the α6β4 integrin promotes carcinoma invasion by Shaw (1997){'key': '2023072902223409400_Theibertetal1997'}
10.1038/42648
/ Nature. / Signalling through the lipid products of phosphoinositide-3-OH kinase by Toker (1997)10.1074/jbc.270.49.29525
/ J. Biol. Chem. / Phosphorylation of the platelet p47 phosphoprotein is mediated by the lipid products of phosphoinositide 3-kinase by Toker (1995)10.1242/jcs.75.1.279
/ J. Cell Sci. / Interference reflection microscopy in cell biologymethodology and applications by Verschueren (1985)10.1016/S0006-3495(93)81059-2
/ Biophys. J. / Affinity of α-actinin for actin determines the structural and mechanical properties of actin filament gels by Wachsstock (1993)10.1016/S0960-9822(00)00087-7
/ Curr. Biol / Activation of phosphoinositide 3-kinase is required for PDGF-stimulated membrane ruffling by Wennstrom (1994){'key': '2023072902223409400_Wennstrometal1994b', 'first-page': '651', 'article-title': 'Membrane ruffling and chemotaxis transduced by the PDGF β-receptor require the binding site for phosphatidylinositol 3′ kinase', 'volume': '9', 'author': 'Wennstrom', 'year': '1994', 'journal-title': 'Oncogene'}
/ Oncogene / Membrane ruffling and chemotaxis transduced by the PDGF β-receptor require the binding site for phosphatidylinositol 3′ kinase by Wennstrom (1994)10.1242/jcs.101.2.277
/ J. Cell Sci. / Protein kinase C involvement in focal adhesion formation by Woods (1992)
Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 12:45 p.m.) |
Deposited | 2 years ago (July 28, 2023, 10:24 p.m.) |
Indexed | 1 month, 1 week ago (July 19, 2025, 11:41 p.m.) |
Issued | 25 years ago (Aug. 7, 2000) |
Published | 25 years ago (Aug. 7, 2000) |
Published Online | 25 years ago (Aug. 7, 2000) |
Published Print | 25 years ago (Aug. 7, 2000) |
@article{Greenwood_2000, title={Restructuring of Focal Adhesion Plaques by Pi 3-Kinase}, volume={150}, ISSN={1540-8140}, url={http://dx.doi.org/10.1083/jcb.150.3.627}, DOI={10.1083/jcb.150.3.627}, number={3}, journal={The Journal of Cell Biology}, publisher={Rockefeller University Press}, author={Greenwood, Jeffrey A. and Theibert, Anne B. and Prestwich, Glenn D. and Murphy-Ullrich, Joanne E.}, year={2000}, month=aug, pages={627–642} }